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Timo Reimann 2017-02-07 22:33:23 +01:00
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Apache License
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To apply the Apache License to your work, attach the following
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CoreOS Project
Copyright 2014 CoreOS, Inc
This product includes software developed at CoreOS, Inc.
(http://www.coreos.com/).

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"bytes"
"encoding/json"
"net/http"
"net/url"
"golang.org/x/net/context"
)
type Role struct {
Role string `json:"role"`
Permissions Permissions `json:"permissions"`
Grant *Permissions `json:"grant,omitempty"`
Revoke *Permissions `json:"revoke,omitempty"`
}
type Permissions struct {
KV rwPermission `json:"kv"`
}
type rwPermission struct {
Read []string `json:"read"`
Write []string `json:"write"`
}
type PermissionType int
const (
ReadPermission PermissionType = iota
WritePermission
ReadWritePermission
)
// NewAuthRoleAPI constructs a new AuthRoleAPI that uses HTTP to
// interact with etcd's role creation and modification features.
func NewAuthRoleAPI(c Client) AuthRoleAPI {
return &httpAuthRoleAPI{
client: c,
}
}
type AuthRoleAPI interface {
// Add a role.
AddRole(ctx context.Context, role string) error
// Remove a role.
RemoveRole(ctx context.Context, role string) error
// Get role details.
GetRole(ctx context.Context, role string) (*Role, error)
// Grant a role some permission prefixes for the KV store.
GrantRoleKV(ctx context.Context, role string, prefixes []string, permType PermissionType) (*Role, error)
// Revoke some some permission prefixes for a role on the KV store.
RevokeRoleKV(ctx context.Context, role string, prefixes []string, permType PermissionType) (*Role, error)
// List roles.
ListRoles(ctx context.Context) ([]string, error)
}
type httpAuthRoleAPI struct {
client httpClient
}
type authRoleAPIAction struct {
verb string
name string
role *Role
}
type authRoleAPIList struct{}
func (list *authRoleAPIList) HTTPRequest(ep url.URL) *http.Request {
u := v2AuthURL(ep, "roles", "")
req, _ := http.NewRequest("GET", u.String(), nil)
req.Header.Set("Content-Type", "application/json")
return req
}
func (l *authRoleAPIAction) HTTPRequest(ep url.URL) *http.Request {
u := v2AuthURL(ep, "roles", l.name)
if l.role == nil {
req, _ := http.NewRequest(l.verb, u.String(), nil)
return req
}
b, err := json.Marshal(l.role)
if err != nil {
panic(err)
}
body := bytes.NewReader(b)
req, _ := http.NewRequest(l.verb, u.String(), body)
req.Header.Set("Content-Type", "application/json")
return req
}
func (r *httpAuthRoleAPI) ListRoles(ctx context.Context) ([]string, error) {
resp, body, err := r.client.Do(ctx, &authRoleAPIList{})
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK); err != nil {
return nil, err
}
var userList struct {
Roles []string `json:"roles"`
}
err = json.Unmarshal(body, &userList)
if err != nil {
return nil, err
}
return userList.Roles, nil
}
func (r *httpAuthRoleAPI) AddRole(ctx context.Context, rolename string) error {
role := &Role{
Role: rolename,
}
return r.addRemoveRole(ctx, &authRoleAPIAction{
verb: "PUT",
name: rolename,
role: role,
})
}
func (r *httpAuthRoleAPI) RemoveRole(ctx context.Context, rolename string) error {
return r.addRemoveRole(ctx, &authRoleAPIAction{
verb: "DELETE",
name: rolename,
})
}
func (r *httpAuthRoleAPI) addRemoveRole(ctx context.Context, req *authRoleAPIAction) error {
resp, body, err := r.client.Do(ctx, req)
if err != nil {
return err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK, http.StatusCreated); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return err
}
return sec
}
return nil
}
func (r *httpAuthRoleAPI) GetRole(ctx context.Context, rolename string) (*Role, error) {
return r.modRole(ctx, &authRoleAPIAction{
verb: "GET",
name: rolename,
})
}
func buildRWPermission(prefixes []string, permType PermissionType) rwPermission {
var out rwPermission
switch permType {
case ReadPermission:
out.Read = prefixes
case WritePermission:
out.Write = prefixes
case ReadWritePermission:
out.Read = prefixes
out.Write = prefixes
}
return out
}
func (r *httpAuthRoleAPI) GrantRoleKV(ctx context.Context, rolename string, prefixes []string, permType PermissionType) (*Role, error) {
rwp := buildRWPermission(prefixes, permType)
role := &Role{
Role: rolename,
Grant: &Permissions{
KV: rwp,
},
}
return r.modRole(ctx, &authRoleAPIAction{
verb: "PUT",
name: rolename,
role: role,
})
}
func (r *httpAuthRoleAPI) RevokeRoleKV(ctx context.Context, rolename string, prefixes []string, permType PermissionType) (*Role, error) {
rwp := buildRWPermission(prefixes, permType)
role := &Role{
Role: rolename,
Revoke: &Permissions{
KV: rwp,
},
}
return r.modRole(ctx, &authRoleAPIAction{
verb: "PUT",
name: rolename,
role: role,
})
}
func (r *httpAuthRoleAPI) modRole(ctx context.Context, req *authRoleAPIAction) (*Role, error) {
resp, body, err := r.client.Do(ctx, req)
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return nil, err
}
return nil, sec
}
var role Role
err = json.Unmarshal(body, &role)
if err != nil {
return nil, err
}
return &role, nil
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"bytes"
"encoding/json"
"net/http"
"net/url"
"path"
"golang.org/x/net/context"
)
var (
defaultV2AuthPrefix = "/v2/auth"
)
type User struct {
User string `json:"user"`
Password string `json:"password,omitempty"`
Roles []string `json:"roles"`
Grant []string `json:"grant,omitempty"`
Revoke []string `json:"revoke,omitempty"`
}
func v2AuthURL(ep url.URL, action string, name string) *url.URL {
if name != "" {
ep.Path = path.Join(ep.Path, defaultV2AuthPrefix, action, name)
return &ep
}
ep.Path = path.Join(ep.Path, defaultV2AuthPrefix, action)
return &ep
}
// NewAuthAPI constructs a new AuthAPI that uses HTTP to
// interact with etcd's general auth features.
func NewAuthAPI(c Client) AuthAPI {
return &httpAuthAPI{
client: c,
}
}
type AuthAPI interface {
// Enable auth.
Enable(ctx context.Context) error
// Disable auth.
Disable(ctx context.Context) error
}
type httpAuthAPI struct {
client httpClient
}
func (s *httpAuthAPI) Enable(ctx context.Context) error {
return s.enableDisable(ctx, &authAPIAction{"PUT"})
}
func (s *httpAuthAPI) Disable(ctx context.Context) error {
return s.enableDisable(ctx, &authAPIAction{"DELETE"})
}
func (s *httpAuthAPI) enableDisable(ctx context.Context, req httpAction) error {
resp, body, err := s.client.Do(ctx, req)
if err != nil {
return err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK, http.StatusCreated); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return err
}
return sec
}
return nil
}
type authAPIAction struct {
verb string
}
func (l *authAPIAction) HTTPRequest(ep url.URL) *http.Request {
u := v2AuthURL(ep, "enable", "")
req, _ := http.NewRequest(l.verb, u.String(), nil)
return req
}
type authError struct {
Message string `json:"message"`
Code int `json:"-"`
}
func (e authError) Error() string {
return e.Message
}
// NewAuthUserAPI constructs a new AuthUserAPI that uses HTTP to
// interact with etcd's user creation and modification features.
func NewAuthUserAPI(c Client) AuthUserAPI {
return &httpAuthUserAPI{
client: c,
}
}
type AuthUserAPI interface {
// Add a user.
AddUser(ctx context.Context, username string, password string) error
// Remove a user.
RemoveUser(ctx context.Context, username string) error
// Get user details.
GetUser(ctx context.Context, username string) (*User, error)
// Grant a user some permission roles.
GrantUser(ctx context.Context, username string, roles []string) (*User, error)
// Revoke some permission roles from a user.
RevokeUser(ctx context.Context, username string, roles []string) (*User, error)
// Change the user's password.
ChangePassword(ctx context.Context, username string, password string) (*User, error)
// List users.
ListUsers(ctx context.Context) ([]string, error)
}
type httpAuthUserAPI struct {
client httpClient
}
type authUserAPIAction struct {
verb string
username string
user *User
}
type authUserAPIList struct{}
func (list *authUserAPIList) HTTPRequest(ep url.URL) *http.Request {
u := v2AuthURL(ep, "users", "")
req, _ := http.NewRequest("GET", u.String(), nil)
req.Header.Set("Content-Type", "application/json")
return req
}
func (l *authUserAPIAction) HTTPRequest(ep url.URL) *http.Request {
u := v2AuthURL(ep, "users", l.username)
if l.user == nil {
req, _ := http.NewRequest(l.verb, u.String(), nil)
return req
}
b, err := json.Marshal(l.user)
if err != nil {
panic(err)
}
body := bytes.NewReader(b)
req, _ := http.NewRequest(l.verb, u.String(), body)
req.Header.Set("Content-Type", "application/json")
return req
}
func (u *httpAuthUserAPI) ListUsers(ctx context.Context) ([]string, error) {
resp, body, err := u.client.Do(ctx, &authUserAPIList{})
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return nil, err
}
return nil, sec
}
var userList struct {
Users []string `json:"users"`
}
err = json.Unmarshal(body, &userList)
if err != nil {
return nil, err
}
return userList.Users, nil
}
func (u *httpAuthUserAPI) AddUser(ctx context.Context, username string, password string) error {
user := &User{
User: username,
Password: password,
}
return u.addRemoveUser(ctx, &authUserAPIAction{
verb: "PUT",
username: username,
user: user,
})
}
func (u *httpAuthUserAPI) RemoveUser(ctx context.Context, username string) error {
return u.addRemoveUser(ctx, &authUserAPIAction{
verb: "DELETE",
username: username,
})
}
func (u *httpAuthUserAPI) addRemoveUser(ctx context.Context, req *authUserAPIAction) error {
resp, body, err := u.client.Do(ctx, req)
if err != nil {
return err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK, http.StatusCreated); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return err
}
return sec
}
return nil
}
func (u *httpAuthUserAPI) GetUser(ctx context.Context, username string) (*User, error) {
return u.modUser(ctx, &authUserAPIAction{
verb: "GET",
username: username,
})
}
func (u *httpAuthUserAPI) GrantUser(ctx context.Context, username string, roles []string) (*User, error) {
user := &User{
User: username,
Grant: roles,
}
return u.modUser(ctx, &authUserAPIAction{
verb: "PUT",
username: username,
user: user,
})
}
func (u *httpAuthUserAPI) RevokeUser(ctx context.Context, username string, roles []string) (*User, error) {
user := &User{
User: username,
Revoke: roles,
}
return u.modUser(ctx, &authUserAPIAction{
verb: "PUT",
username: username,
user: user,
})
}
func (u *httpAuthUserAPI) ChangePassword(ctx context.Context, username string, password string) (*User, error) {
user := &User{
User: username,
Password: password,
}
return u.modUser(ctx, &authUserAPIAction{
verb: "PUT",
username: username,
user: user,
})
}
func (u *httpAuthUserAPI) modUser(ctx context.Context, req *authUserAPIAction) (*User, error) {
resp, body, err := u.client.Do(ctx, req)
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK); err != nil {
var sec authError
err := json.Unmarshal(body, &sec)
if err != nil {
return nil, err
}
return nil, sec
}
var user User
err = json.Unmarshal(body, &user)
if err != nil {
return nil, err
}
return &user, nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// borrowed from golang/net/context/ctxhttp/cancelreq.go
// +build go1.5
package client
import "net/http"
func requestCanceler(tr CancelableTransport, req *http.Request) func() {
ch := make(chan struct{})
req.Cancel = ch
return func() {
close(ch)
}
}

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vendor/github.com/coreos/etcd/client/cancelreq_go14.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// borrowed from golang/net/context/ctxhttp/cancelreq_go14.go
// +build !go1.5
package client
import "net/http"
func requestCanceler(tr CancelableTransport, req *http.Request) func() {
return func() {
tr.CancelRequest(req)
}
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"errors"
"fmt"
"io/ioutil"
"math/rand"
"net"
"net/http"
"net/url"
"reflect"
"sort"
"sync"
"time"
"golang.org/x/net/context"
)
var (
ErrNoEndpoints = errors.New("client: no endpoints available")
ErrTooManyRedirects = errors.New("client: too many redirects")
ErrClusterUnavailable = errors.New("client: etcd cluster is unavailable or misconfigured")
errTooManyRedirectChecks = errors.New("client: too many redirect checks")
)
var DefaultRequestTimeout = 5 * time.Second
var DefaultTransport CancelableTransport = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
}
type Config struct {
// Endpoints defines a set of URLs (schemes, hosts and ports only)
// that can be used to communicate with a logical etcd cluster. For
// example, a three-node cluster could be provided like so:
//
// Endpoints: []string{
// "http://node1.example.com:2379",
// "http://node2.example.com:2379",
// "http://node3.example.com:2379",
// }
//
// If multiple endpoints are provided, the Client will attempt to
// use them all in the event that one or more of them are unusable.
//
// If Client.Sync is ever called, the Client may cache an alternate
// set of endpoints to continue operation.
Endpoints []string
// Transport is used by the Client to drive HTTP requests. If not
// provided, DefaultTransport will be used.
Transport CancelableTransport
// CheckRedirect specifies the policy for handling HTTP redirects.
// If CheckRedirect is not nil, the Client calls it before
// following an HTTP redirect. The sole argument is the number of
// requests that have alrady been made. If CheckRedirect returns
// an error, Client.Do will not make any further requests and return
// the error back it to the caller.
//
// If CheckRedirect is nil, the Client uses its default policy,
// which is to stop after 10 consecutive requests.
CheckRedirect CheckRedirectFunc
// Username specifies the user credential to add as an authorization header
Username string
// Password is the password for the specified user to add as an authorization header
// to the request.
Password string
// HeaderTimeoutPerRequest specifies the time limit to wait for response
// header in a single request made by the Client. The timeout includes
// connection time, any redirects, and header wait time.
//
// For non-watch GET request, server returns the response body immediately.
// For PUT/POST/DELETE request, server will attempt to commit request
// before responding, which is expected to take `100ms + 2 * RTT`.
// For watch request, server returns the header immediately to notify Client
// watch start. But if server is behind some kind of proxy, the response
// header may be cached at proxy, and Client cannot rely on this behavior.
//
// One API call may send multiple requests to different etcd servers until it
// succeeds. Use context of the API to specify the overall timeout.
//
// A HeaderTimeoutPerRequest of zero means no timeout.
HeaderTimeoutPerRequest time.Duration
}
func (cfg *Config) transport() CancelableTransport {
if cfg.Transport == nil {
return DefaultTransport
}
return cfg.Transport
}
func (cfg *Config) checkRedirect() CheckRedirectFunc {
if cfg.CheckRedirect == nil {
return DefaultCheckRedirect
}
return cfg.CheckRedirect
}
// CancelableTransport mimics net/http.Transport, but requires that
// the object also support request cancellation.
type CancelableTransport interface {
http.RoundTripper
CancelRequest(req *http.Request)
}
type CheckRedirectFunc func(via int) error
// DefaultCheckRedirect follows up to 10 redirects, but no more.
var DefaultCheckRedirect CheckRedirectFunc = func(via int) error {
if via > 10 {
return ErrTooManyRedirects
}
return nil
}
type Client interface {
// Sync updates the internal cache of the etcd cluster's membership.
Sync(context.Context) error
// AutoSync periodically calls Sync() every given interval.
// The recommended sync interval is 10 seconds to 1 minute, which does
// not bring too much overhead to server and makes client catch up the
// cluster change in time.
//
// The example to use it:
//
// for {
// err := client.AutoSync(ctx, 10*time.Second)
// if err == context.DeadlineExceeded || err == context.Canceled {
// break
// }
// log.Print(err)
// }
AutoSync(context.Context, time.Duration) error
// Endpoints returns a copy of the current set of API endpoints used
// by Client to resolve HTTP requests. If Sync has ever been called,
// this may differ from the initial Endpoints provided in the Config.
Endpoints() []string
httpClient
}
func New(cfg Config) (Client, error) {
c := &httpClusterClient{
clientFactory: newHTTPClientFactory(cfg.transport(), cfg.checkRedirect(), cfg.HeaderTimeoutPerRequest),
rand: rand.New(rand.NewSource(int64(time.Now().Nanosecond()))),
}
if cfg.Username != "" {
c.credentials = &credentials{
username: cfg.Username,
password: cfg.Password,
}
}
if err := c.reset(cfg.Endpoints); err != nil {
return nil, err
}
return c, nil
}
type httpClient interface {
Do(context.Context, httpAction) (*http.Response, []byte, error)
}
func newHTTPClientFactory(tr CancelableTransport, cr CheckRedirectFunc, headerTimeout time.Duration) httpClientFactory {
return func(ep url.URL) httpClient {
return &redirectFollowingHTTPClient{
checkRedirect: cr,
client: &simpleHTTPClient{
transport: tr,
endpoint: ep,
headerTimeout: headerTimeout,
},
}
}
}
type credentials struct {
username string
password string
}
type httpClientFactory func(url.URL) httpClient
type httpAction interface {
HTTPRequest(url.URL) *http.Request
}
type httpClusterClient struct {
clientFactory httpClientFactory
endpoints []url.URL
pinned int
credentials *credentials
sync.RWMutex
rand *rand.Rand
}
func (c *httpClusterClient) reset(eps []string) error {
if len(eps) == 0 {
return ErrNoEndpoints
}
neps := make([]url.URL, len(eps))
for i, ep := range eps {
u, err := url.Parse(ep)
if err != nil {
return err
}
neps[i] = *u
}
c.endpoints = shuffleEndpoints(c.rand, neps)
// TODO: pin old endpoint if possible, and rebalance when new endpoint appears
c.pinned = 0
return nil
}
func (c *httpClusterClient) Do(ctx context.Context, act httpAction) (*http.Response, []byte, error) {
action := act
c.RLock()
leps := len(c.endpoints)
eps := make([]url.URL, leps)
n := copy(eps, c.endpoints)
pinned := c.pinned
if c.credentials != nil {
action = &authedAction{
act: act,
credentials: *c.credentials,
}
}
c.RUnlock()
if leps == 0 {
return nil, nil, ErrNoEndpoints
}
if leps != n {
return nil, nil, errors.New("unable to pick endpoint: copy failed")
}
var resp *http.Response
var body []byte
var err error
cerr := &ClusterError{}
for i := pinned; i < leps+pinned; i++ {
k := i % leps
hc := c.clientFactory(eps[k])
resp, body, err = hc.Do(ctx, action)
if err != nil {
cerr.Errors = append(cerr.Errors, err)
// mask previous errors with context error, which is controlled by user
if err == context.Canceled || err == context.DeadlineExceeded {
return nil, nil, err
}
continue
}
if resp.StatusCode/100 == 5 {
switch resp.StatusCode {
case http.StatusInternalServerError, http.StatusServiceUnavailable:
// TODO: make sure this is a no leader response
cerr.Errors = append(cerr.Errors, fmt.Errorf("client: etcd member %s has no leader", eps[k].String()))
default:
cerr.Errors = append(cerr.Errors, fmt.Errorf("client: etcd member %s returns server error [%s]", eps[k].String(), http.StatusText(resp.StatusCode)))
}
continue
}
if k != pinned {
c.Lock()
c.pinned = k
c.Unlock()
}
return resp, body, nil
}
return nil, nil, cerr
}
func (c *httpClusterClient) Endpoints() []string {
c.RLock()
defer c.RUnlock()
eps := make([]string, len(c.endpoints))
for i, ep := range c.endpoints {
eps[i] = ep.String()
}
return eps
}
func (c *httpClusterClient) Sync(ctx context.Context) error {
mAPI := NewMembersAPI(c)
ms, err := mAPI.List(ctx)
if err != nil {
return err
}
c.Lock()
defer c.Unlock()
eps := make([]string, 0)
for _, m := range ms {
eps = append(eps, m.ClientURLs...)
}
sort.Sort(sort.StringSlice(eps))
ceps := make([]string, len(c.endpoints))
for i, cep := range c.endpoints {
ceps[i] = cep.String()
}
sort.Sort(sort.StringSlice(ceps))
// fast path if no change happens
// this helps client to pin the endpoint when no cluster change
if reflect.DeepEqual(eps, ceps) {
return nil
}
return c.reset(eps)
}
func (c *httpClusterClient) AutoSync(ctx context.Context, interval time.Duration) error {
ticker := time.NewTicker(interval)
defer ticker.Stop()
for {
err := c.Sync(ctx)
if err != nil {
return err
}
select {
case <-ctx.Done():
return ctx.Err()
case <-ticker.C:
}
}
}
type roundTripResponse struct {
resp *http.Response
err error
}
type simpleHTTPClient struct {
transport CancelableTransport
endpoint url.URL
headerTimeout time.Duration
}
func (c *simpleHTTPClient) Do(ctx context.Context, act httpAction) (*http.Response, []byte, error) {
req := act.HTTPRequest(c.endpoint)
if err := printcURL(req); err != nil {
return nil, nil, err
}
hctx, hcancel := context.WithCancel(ctx)
if c.headerTimeout > 0 {
hctx, hcancel = context.WithTimeout(ctx, c.headerTimeout)
}
defer hcancel()
reqcancel := requestCanceler(c.transport, req)
rtchan := make(chan roundTripResponse, 1)
go func() {
resp, err := c.transport.RoundTrip(req)
rtchan <- roundTripResponse{resp: resp, err: err}
close(rtchan)
}()
var resp *http.Response
var err error
select {
case rtresp := <-rtchan:
resp, err = rtresp.resp, rtresp.err
case <-hctx.Done():
// cancel and wait for request to actually exit before continuing
reqcancel()
rtresp := <-rtchan
resp = rtresp.resp
switch {
case ctx.Err() != nil:
err = ctx.Err()
case hctx.Err() != nil:
err = fmt.Errorf("client: endpoint %s exceeded header timeout", c.endpoint.String())
default:
panic("failed to get error from context")
}
}
// always check for resp nil-ness to deal with possible
// race conditions between channels above
defer func() {
if resp != nil {
resp.Body.Close()
}
}()
if err != nil {
return nil, nil, err
}
var body []byte
done := make(chan struct{})
go func() {
body, err = ioutil.ReadAll(resp.Body)
done <- struct{}{}
}()
select {
case <-ctx.Done():
resp.Body.Close()
<-done
return nil, nil, ctx.Err()
case <-done:
}
return resp, body, err
}
type authedAction struct {
act httpAction
credentials credentials
}
func (a *authedAction) HTTPRequest(url url.URL) *http.Request {
r := a.act.HTTPRequest(url)
r.SetBasicAuth(a.credentials.username, a.credentials.password)
return r
}
type redirectFollowingHTTPClient struct {
client httpClient
checkRedirect CheckRedirectFunc
}
func (r *redirectFollowingHTTPClient) Do(ctx context.Context, act httpAction) (*http.Response, []byte, error) {
next := act
for i := 0; i < 100; i++ {
if i > 0 {
if err := r.checkRedirect(i); err != nil {
return nil, nil, err
}
}
resp, body, err := r.client.Do(ctx, next)
if err != nil {
return nil, nil, err
}
if resp.StatusCode/100 == 3 {
hdr := resp.Header.Get("Location")
if hdr == "" {
return nil, nil, fmt.Errorf("Location header not set")
}
loc, err := url.Parse(hdr)
if err != nil {
return nil, nil, fmt.Errorf("Location header not valid URL: %s", hdr)
}
next = &redirectedHTTPAction{
action: act,
location: *loc,
}
continue
}
return resp, body, nil
}
return nil, nil, errTooManyRedirectChecks
}
type redirectedHTTPAction struct {
action httpAction
location url.URL
}
func (r *redirectedHTTPAction) HTTPRequest(ep url.URL) *http.Request {
orig := r.action.HTTPRequest(ep)
orig.URL = &r.location
return orig
}
func shuffleEndpoints(r *rand.Rand, eps []url.URL) []url.URL {
p := r.Perm(len(eps))
neps := make([]url.URL, len(eps))
for i, k := range p {
neps[i] = eps[k]
}
return neps
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import "fmt"
type ClusterError struct {
Errors []error
}
func (ce *ClusterError) Error() string {
return ErrClusterUnavailable.Error()
}
func (ce *ClusterError) Detail() string {
s := ""
for i, e := range ce.Errors {
s += fmt.Sprintf("error #%d: %s\n", i, e)
}
return s
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"os"
)
var (
cURLDebug = false
)
func EnablecURLDebug() {
cURLDebug = true
}
func DisablecURLDebug() {
cURLDebug = false
}
// printcURL prints the cURL equivalent request to stderr.
// It returns an error if the body of the request cannot
// be read.
// The caller MUST cancel the request if there is an error.
func printcURL(req *http.Request) error {
if !cURLDebug {
return nil
}
var (
command string
b []byte
err error
)
if req.URL != nil {
command = fmt.Sprintf("curl -X %s %s", req.Method, req.URL.String())
}
if req.Body != nil {
b, err = ioutil.ReadAll(req.Body)
if err != nil {
return err
}
command += fmt.Sprintf(" -d %q", string(b))
}
fmt.Fprintf(os.Stderr, "cURL Command: %s\n", command)
// reset body
body := bytes.NewBuffer(b)
req.Body = ioutil.NopCloser(body)
return nil
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
// Discoverer is an interface that wraps the Discover method.
type Discoverer interface {
// Discover looks up the etcd servers for the domain.
Discover(domain string) ([]string, error)
}

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*
Package client provides bindings for the etcd APIs.
Create a Config and exchange it for a Client:
import (
"net/http"
"github.com/coreos/etcd/client"
"golang.org/x/net/context"
)
cfg := client.Config{
Endpoints: []string{"http://127.0.0.1:2379"},
Transport: DefaultTransport,
}
c, err := client.New(cfg)
if err != nil {
// handle error
}
Create a KeysAPI using the Client, then use it to interact with etcd:
kAPI := client.NewKeysAPI(c)
// create a new key /foo with the value "bar"
_, err = kAPI.Create(context.Background(), "/foo", "bar")
if err != nil {
// handle error
}
// delete the newly created key only if the value is still "bar"
_, err = kAPI.Delete(context.Background(), "/foo", &DeleteOptions{PrevValue: "bar"})
if err != nil {
// handle error
}
Use a custom context to set timeouts on your operations:
import "time"
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
// set a new key, ignoring it's previous state
_, err := kAPI.Set(ctx, "/ping", "pong", nil)
if err != nil {
if err == context.DeadlineExceeded {
// request took longer than 5s
} else {
// handle error
}
}
*/
package client

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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
//go:generate codecgen -d 1819 -r "Node|Response|Nodes" -o keys.generated.go keys.go
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/coreos/etcd/pkg/pathutil"
"github.com/ugorji/go/codec"
"golang.org/x/net/context"
)
const (
ErrorCodeKeyNotFound = 100
ErrorCodeTestFailed = 101
ErrorCodeNotFile = 102
ErrorCodeNotDir = 104
ErrorCodeNodeExist = 105
ErrorCodeRootROnly = 107
ErrorCodeDirNotEmpty = 108
ErrorCodeUnauthorized = 110
ErrorCodePrevValueRequired = 201
ErrorCodeTTLNaN = 202
ErrorCodeIndexNaN = 203
ErrorCodeInvalidField = 209
ErrorCodeInvalidForm = 210
ErrorCodeRaftInternal = 300
ErrorCodeLeaderElect = 301
ErrorCodeWatcherCleared = 400
ErrorCodeEventIndexCleared = 401
)
type Error struct {
Code int `json:"errorCode"`
Message string `json:"message"`
Cause string `json:"cause"`
Index uint64 `json:"index"`
}
func (e Error) Error() string {
return fmt.Sprintf("%v: %v (%v) [%v]", e.Code, e.Message, e.Cause, e.Index)
}
var (
ErrInvalidJSON = errors.New("client: response is invalid json. The endpoint is probably not valid etcd cluster endpoint.")
ErrEmptyBody = errors.New("client: response body is empty")
)
// PrevExistType is used to define an existence condition when setting
// or deleting Nodes.
type PrevExistType string
const (
PrevIgnore = PrevExistType("")
PrevExist = PrevExistType("true")
PrevNoExist = PrevExistType("false")
)
var (
defaultV2KeysPrefix = "/v2/keys"
)
// NewKeysAPI builds a KeysAPI that interacts with etcd's key-value
// API over HTTP.
func NewKeysAPI(c Client) KeysAPI {
return NewKeysAPIWithPrefix(c, defaultV2KeysPrefix)
}
// NewKeysAPIWithPrefix acts like NewKeysAPI, but allows the caller
// to provide a custom base URL path. This should only be used in
// very rare cases.
func NewKeysAPIWithPrefix(c Client, p string) KeysAPI {
return &httpKeysAPI{
client: c,
prefix: p,
}
}
type KeysAPI interface {
// Get retrieves a set of Nodes from etcd
Get(ctx context.Context, key string, opts *GetOptions) (*Response, error)
// Set assigns a new value to a Node identified by a given key. The caller
// may define a set of conditions in the SetOptions. If SetOptions.Dir=true
// than value is ignored.
Set(ctx context.Context, key, value string, opts *SetOptions) (*Response, error)
// Delete removes a Node identified by the given key, optionally destroying
// all of its children as well. The caller may define a set of required
// conditions in an DeleteOptions object.
Delete(ctx context.Context, key string, opts *DeleteOptions) (*Response, error)
// Create is an alias for Set w/ PrevExist=false
Create(ctx context.Context, key, value string) (*Response, error)
// CreateInOrder is used to atomically create in-order keys within the given directory.
CreateInOrder(ctx context.Context, dir, value string, opts *CreateInOrderOptions) (*Response, error)
// Update is an alias for Set w/ PrevExist=true
Update(ctx context.Context, key, value string) (*Response, error)
// Watcher builds a new Watcher targeted at a specific Node identified
// by the given key. The Watcher may be configured at creation time
// through a WatcherOptions object. The returned Watcher is designed
// to emit events that happen to a Node, and optionally to its children.
Watcher(key string, opts *WatcherOptions) Watcher
}
type WatcherOptions struct {
// AfterIndex defines the index after-which the Watcher should
// start emitting events. For example, if a value of 5 is
// provided, the first event will have an index >= 6.
//
// Setting AfterIndex to 0 (default) means that the Watcher
// should start watching for events starting at the current
// index, whatever that may be.
AfterIndex uint64
// Recursive specifies whether or not the Watcher should emit
// events that occur in children of the given keyspace. If set
// to false (default), events will be limited to those that
// occur for the exact key.
Recursive bool
}
type CreateInOrderOptions struct {
// TTL defines a period of time after-which the Node should
// expire and no longer exist. Values <= 0 are ignored. Given
// that the zero-value is ignored, TTL cannot be used to set
// a TTL of 0.
TTL time.Duration
}
type SetOptions struct {
// PrevValue specifies what the current value of the Node must
// be in order for the Set operation to succeed.
//
// Leaving this field empty means that the caller wishes to
// ignore the current value of the Node. This cannot be used
// to compare the Node's current value to an empty string.
//
// PrevValue is ignored if Dir=true
PrevValue string
// PrevIndex indicates what the current ModifiedIndex of the
// Node must be in order for the Set operation to succeed.
//
// If PrevIndex is set to 0 (default), no comparison is made.
PrevIndex uint64
// PrevExist specifies whether the Node must currently exist
// (PrevExist) or not (PrevNoExist). If the caller does not
// care about existence, set PrevExist to PrevIgnore, or simply
// leave it unset.
PrevExist PrevExistType
// TTL defines a period of time after-which the Node should
// expire and no longer exist. Values <= 0 are ignored. Given
// that the zero-value is ignored, TTL cannot be used to set
// a TTL of 0.
TTL time.Duration
// Dir specifies whether or not this Node should be created as a directory.
Dir bool
}
type GetOptions struct {
// Recursive defines whether or not all children of the Node
// should be returned.
Recursive bool
// Sort instructs the server whether or not to sort the Nodes.
// If true, the Nodes are sorted alphabetically by key in
// ascending order (A to z). If false (default), the Nodes will
// not be sorted and the ordering used should not be considered
// predictable.
Sort bool
// Quorum specifies whether it gets the latest committed value that
// has been applied in quorum of members, which ensures external
// consistency (or linearizability).
Quorum bool
}
type DeleteOptions struct {
// PrevValue specifies what the current value of the Node must
// be in order for the Delete operation to succeed.
//
// Leaving this field empty means that the caller wishes to
// ignore the current value of the Node. This cannot be used
// to compare the Node's current value to an empty string.
PrevValue string
// PrevIndex indicates what the current ModifiedIndex of the
// Node must be in order for the Delete operation to succeed.
//
// If PrevIndex is set to 0 (default), no comparison is made.
PrevIndex uint64
// Recursive defines whether or not all children of the Node
// should be deleted. If set to true, all children of the Node
// identified by the given key will be deleted. If left unset
// or explicitly set to false, only a single Node will be
// deleted.
Recursive bool
// Dir specifies whether or not this Node should be removed as a directory.
Dir bool
}
type Watcher interface {
// Next blocks until an etcd event occurs, then returns a Response
// represeting that event. The behavior of Next depends on the
// WatcherOptions used to construct the Watcher. Next is designed to
// be called repeatedly, each time blocking until a subsequent event
// is available.
//
// If the provided context is cancelled, Next will return a non-nil
// error. Any other failures encountered while waiting for the next
// event (connection issues, deserialization failures, etc) will
// also result in a non-nil error.
Next(context.Context) (*Response, error)
}
type Response struct {
// Action is the name of the operation that occurred. Possible values
// include get, set, delete, update, create, compareAndSwap,
// compareAndDelete and expire.
Action string `json:"action"`
// Node represents the state of the relevant etcd Node.
Node *Node `json:"node"`
// PrevNode represents the previous state of the Node. PrevNode is non-nil
// only if the Node existed before the action occurred and the action
// caused a change to the Node.
PrevNode *Node `json:"prevNode"`
// Index holds the cluster-level index at the time the Response was generated.
// This index is not tied to the Node(s) contained in this Response.
Index uint64 `json:"-"`
}
type Node struct {
// Key represents the unique location of this Node (e.g. "/foo/bar").
Key string `json:"key"`
// Dir reports whether node describes a directory.
Dir bool `json:"dir,omitempty"`
// Value is the current data stored on this Node. If this Node
// is a directory, Value will be empty.
Value string `json:"value"`
// Nodes holds the children of this Node, only if this Node is a directory.
// This slice of will be arbitrarily deep (children, grandchildren, great-
// grandchildren, etc.) if a recursive Get or Watch request were made.
Nodes Nodes `json:"nodes"`
// CreatedIndex is the etcd index at-which this Node was created.
CreatedIndex uint64 `json:"createdIndex"`
// ModifiedIndex is the etcd index at-which this Node was last modified.
ModifiedIndex uint64 `json:"modifiedIndex"`
// Expiration is the server side expiration time of the key.
Expiration *time.Time `json:"expiration,omitempty"`
// TTL is the time to live of the key in second.
TTL int64 `json:"ttl,omitempty"`
}
func (n *Node) String() string {
return fmt.Sprintf("{Key: %s, CreatedIndex: %d, ModifiedIndex: %d, TTL: %d}", n.Key, n.CreatedIndex, n.ModifiedIndex, n.TTL)
}
// TTLDuration returns the Node's TTL as a time.Duration object
func (n *Node) TTLDuration() time.Duration {
return time.Duration(n.TTL) * time.Second
}
type Nodes []*Node
// interfaces for sorting
func (ns Nodes) Len() int { return len(ns) }
func (ns Nodes) Less(i, j int) bool { return ns[i].Key < ns[j].Key }
func (ns Nodes) Swap(i, j int) { ns[i], ns[j] = ns[j], ns[i] }
type httpKeysAPI struct {
client httpClient
prefix string
}
func (k *httpKeysAPI) Set(ctx context.Context, key, val string, opts *SetOptions) (*Response, error) {
act := &setAction{
Prefix: k.prefix,
Key: key,
Value: val,
}
if opts != nil {
act.PrevValue = opts.PrevValue
act.PrevIndex = opts.PrevIndex
act.PrevExist = opts.PrevExist
act.TTL = opts.TTL
act.Dir = opts.Dir
}
resp, body, err := k.client.Do(ctx, act)
if err != nil {
return nil, err
}
return unmarshalHTTPResponse(resp.StatusCode, resp.Header, body)
}
func (k *httpKeysAPI) Create(ctx context.Context, key, val string) (*Response, error) {
return k.Set(ctx, key, val, &SetOptions{PrevExist: PrevNoExist})
}
func (k *httpKeysAPI) CreateInOrder(ctx context.Context, dir, val string, opts *CreateInOrderOptions) (*Response, error) {
act := &createInOrderAction{
Prefix: k.prefix,
Dir: dir,
Value: val,
}
if opts != nil {
act.TTL = opts.TTL
}
resp, body, err := k.client.Do(ctx, act)
if err != nil {
return nil, err
}
return unmarshalHTTPResponse(resp.StatusCode, resp.Header, body)
}
func (k *httpKeysAPI) Update(ctx context.Context, key, val string) (*Response, error) {
return k.Set(ctx, key, val, &SetOptions{PrevExist: PrevExist})
}
func (k *httpKeysAPI) Delete(ctx context.Context, key string, opts *DeleteOptions) (*Response, error) {
act := &deleteAction{
Prefix: k.prefix,
Key: key,
}
if opts != nil {
act.PrevValue = opts.PrevValue
act.PrevIndex = opts.PrevIndex
act.Dir = opts.Dir
act.Recursive = opts.Recursive
}
resp, body, err := k.client.Do(ctx, act)
if err != nil {
return nil, err
}
return unmarshalHTTPResponse(resp.StatusCode, resp.Header, body)
}
func (k *httpKeysAPI) Get(ctx context.Context, key string, opts *GetOptions) (*Response, error) {
act := &getAction{
Prefix: k.prefix,
Key: key,
}
if opts != nil {
act.Recursive = opts.Recursive
act.Sorted = opts.Sort
act.Quorum = opts.Quorum
}
resp, body, err := k.client.Do(ctx, act)
if err != nil {
return nil, err
}
return unmarshalHTTPResponse(resp.StatusCode, resp.Header, body)
}
func (k *httpKeysAPI) Watcher(key string, opts *WatcherOptions) Watcher {
act := waitAction{
Prefix: k.prefix,
Key: key,
}
if opts != nil {
act.Recursive = opts.Recursive
if opts.AfterIndex > 0 {
act.WaitIndex = opts.AfterIndex + 1
}
}
return &httpWatcher{
client: k.client,
nextWait: act,
}
}
type httpWatcher struct {
client httpClient
nextWait waitAction
}
func (hw *httpWatcher) Next(ctx context.Context) (*Response, error) {
for {
httpresp, body, err := hw.client.Do(ctx, &hw.nextWait)
if err != nil {
return nil, err
}
resp, err := unmarshalHTTPResponse(httpresp.StatusCode, httpresp.Header, body)
if err != nil {
if err == ErrEmptyBody {
continue
}
return nil, err
}
hw.nextWait.WaitIndex = resp.Node.ModifiedIndex + 1
return resp, nil
}
}
// v2KeysURL forms a URL representing the location of a key.
// The endpoint argument represents the base URL of an etcd
// server. The prefix is the path needed to route from the
// provided endpoint's path to the root of the keys API
// (typically "/v2/keys").
func v2KeysURL(ep url.URL, prefix, key string) *url.URL {
// We concatenate all parts together manually. We cannot use
// path.Join because it does not reserve trailing slash.
// We call CanonicalURLPath to further cleanup the path.
if prefix != "" && prefix[0] != '/' {
prefix = "/" + prefix
}
if key != "" && key[0] != '/' {
key = "/" + key
}
ep.Path = pathutil.CanonicalURLPath(ep.Path + prefix + key)
return &ep
}
type getAction struct {
Prefix string
Key string
Recursive bool
Sorted bool
Quorum bool
}
func (g *getAction) HTTPRequest(ep url.URL) *http.Request {
u := v2KeysURL(ep, g.Prefix, g.Key)
params := u.Query()
params.Set("recursive", strconv.FormatBool(g.Recursive))
params.Set("sorted", strconv.FormatBool(g.Sorted))
params.Set("quorum", strconv.FormatBool(g.Quorum))
u.RawQuery = params.Encode()
req, _ := http.NewRequest("GET", u.String(), nil)
return req
}
type waitAction struct {
Prefix string
Key string
WaitIndex uint64
Recursive bool
}
func (w *waitAction) HTTPRequest(ep url.URL) *http.Request {
u := v2KeysURL(ep, w.Prefix, w.Key)
params := u.Query()
params.Set("wait", "true")
params.Set("waitIndex", strconv.FormatUint(w.WaitIndex, 10))
params.Set("recursive", strconv.FormatBool(w.Recursive))
u.RawQuery = params.Encode()
req, _ := http.NewRequest("GET", u.String(), nil)
return req
}
type setAction struct {
Prefix string
Key string
Value string
PrevValue string
PrevIndex uint64
PrevExist PrevExistType
TTL time.Duration
Dir bool
}
func (a *setAction) HTTPRequest(ep url.URL) *http.Request {
u := v2KeysURL(ep, a.Prefix, a.Key)
params := u.Query()
form := url.Values{}
// we're either creating a directory or setting a key
if a.Dir {
params.Set("dir", strconv.FormatBool(a.Dir))
} else {
// These options are only valid for setting a key
if a.PrevValue != "" {
params.Set("prevValue", a.PrevValue)
}
form.Add("value", a.Value)
}
// Options which apply to both setting a key and creating a dir
if a.PrevIndex != 0 {
params.Set("prevIndex", strconv.FormatUint(a.PrevIndex, 10))
}
if a.PrevExist != PrevIgnore {
params.Set("prevExist", string(a.PrevExist))
}
if a.TTL > 0 {
form.Add("ttl", strconv.FormatUint(uint64(a.TTL.Seconds()), 10))
}
u.RawQuery = params.Encode()
body := strings.NewReader(form.Encode())
req, _ := http.NewRequest("PUT", u.String(), body)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
return req
}
type deleteAction struct {
Prefix string
Key string
PrevValue string
PrevIndex uint64
Dir bool
Recursive bool
}
func (a *deleteAction) HTTPRequest(ep url.URL) *http.Request {
u := v2KeysURL(ep, a.Prefix, a.Key)
params := u.Query()
if a.PrevValue != "" {
params.Set("prevValue", a.PrevValue)
}
if a.PrevIndex != 0 {
params.Set("prevIndex", strconv.FormatUint(a.PrevIndex, 10))
}
if a.Dir {
params.Set("dir", "true")
}
if a.Recursive {
params.Set("recursive", "true")
}
u.RawQuery = params.Encode()
req, _ := http.NewRequest("DELETE", u.String(), nil)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
return req
}
type createInOrderAction struct {
Prefix string
Dir string
Value string
TTL time.Duration
}
func (a *createInOrderAction) HTTPRequest(ep url.URL) *http.Request {
u := v2KeysURL(ep, a.Prefix, a.Dir)
form := url.Values{}
form.Add("value", a.Value)
if a.TTL > 0 {
form.Add("ttl", strconv.FormatUint(uint64(a.TTL.Seconds()), 10))
}
body := strings.NewReader(form.Encode())
req, _ := http.NewRequest("POST", u.String(), body)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
return req
}
func unmarshalHTTPResponse(code int, header http.Header, body []byte) (res *Response, err error) {
switch code {
case http.StatusOK, http.StatusCreated:
if len(body) == 0 {
return nil, ErrEmptyBody
}
res, err = unmarshalSuccessfulKeysResponse(header, body)
default:
err = unmarshalFailedKeysResponse(body)
}
return
}
func unmarshalSuccessfulKeysResponse(header http.Header, body []byte) (*Response, error) {
var res Response
err := codec.NewDecoderBytes(body, new(codec.JsonHandle)).Decode(&res)
if err != nil {
return nil, ErrInvalidJSON
}
if header.Get("X-Etcd-Index") != "" {
res.Index, err = strconv.ParseUint(header.Get("X-Etcd-Index"), 10, 64)
if err != nil {
return nil, err
}
}
return &res, nil
}
func unmarshalFailedKeysResponse(body []byte) error {
var etcdErr Error
if err := json.Unmarshal(body, &etcdErr); err != nil {
return ErrInvalidJSON
}
return etcdErr
}

272
vendor/github.com/coreos/etcd/client/members.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"net/url"
"path"
"golang.org/x/net/context"
"github.com/coreos/etcd/pkg/types"
)
var (
defaultV2MembersPrefix = "/v2/members"
)
type Member struct {
// ID is the unique identifier of this Member.
ID string `json:"id"`
// Name is a human-readable, non-unique identifier of this Member.
Name string `json:"name"`
// PeerURLs represents the HTTP(S) endpoints this Member uses to
// participate in etcd's consensus protocol.
PeerURLs []string `json:"peerURLs"`
// ClientURLs represents the HTTP(S) endpoints on which this Member
// serves it's client-facing APIs.
ClientURLs []string `json:"clientURLs"`
}
type memberCollection []Member
func (c *memberCollection) UnmarshalJSON(data []byte) error {
d := struct {
Members []Member
}{}
if err := json.Unmarshal(data, &d); err != nil {
return err
}
if d.Members == nil {
*c = make([]Member, 0)
return nil
}
*c = d.Members
return nil
}
type memberCreateOrUpdateRequest struct {
PeerURLs types.URLs
}
func (m *memberCreateOrUpdateRequest) MarshalJSON() ([]byte, error) {
s := struct {
PeerURLs []string `json:"peerURLs"`
}{
PeerURLs: make([]string, len(m.PeerURLs)),
}
for i, u := range m.PeerURLs {
s.PeerURLs[i] = u.String()
}
return json.Marshal(&s)
}
// NewMembersAPI constructs a new MembersAPI that uses HTTP to
// interact with etcd's membership API.
func NewMembersAPI(c Client) MembersAPI {
return &httpMembersAPI{
client: c,
}
}
type MembersAPI interface {
// List enumerates the current cluster membership.
List(ctx context.Context) ([]Member, error)
// Add instructs etcd to accept a new Member into the cluster.
Add(ctx context.Context, peerURL string) (*Member, error)
// Remove demotes an existing Member out of the cluster.
Remove(ctx context.Context, mID string) error
// Update instructs etcd to update an existing Member in the cluster.
Update(ctx context.Context, mID string, peerURLs []string) error
}
type httpMembersAPI struct {
client httpClient
}
func (m *httpMembersAPI) List(ctx context.Context) ([]Member, error) {
req := &membersAPIActionList{}
resp, body, err := m.client.Do(ctx, req)
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusOK); err != nil {
return nil, err
}
var mCollection memberCollection
if err := json.Unmarshal(body, &mCollection); err != nil {
return nil, err
}
return []Member(mCollection), nil
}
func (m *httpMembersAPI) Add(ctx context.Context, peerURL string) (*Member, error) {
urls, err := types.NewURLs([]string{peerURL})
if err != nil {
return nil, err
}
req := &membersAPIActionAdd{peerURLs: urls}
resp, body, err := m.client.Do(ctx, req)
if err != nil {
return nil, err
}
if err := assertStatusCode(resp.StatusCode, http.StatusCreated, http.StatusConflict); err != nil {
return nil, err
}
if resp.StatusCode != http.StatusCreated {
var merr membersError
if err := json.Unmarshal(body, &merr); err != nil {
return nil, err
}
return nil, merr
}
var memb Member
if err := json.Unmarshal(body, &memb); err != nil {
return nil, err
}
return &memb, nil
}
func (m *httpMembersAPI) Update(ctx context.Context, memberID string, peerURLs []string) error {
urls, err := types.NewURLs(peerURLs)
if err != nil {
return err
}
req := &membersAPIActionUpdate{peerURLs: urls, memberID: memberID}
resp, body, err := m.client.Do(ctx, req)
if err != nil {
return err
}
if err := assertStatusCode(resp.StatusCode, http.StatusNoContent, http.StatusNotFound, http.StatusConflict); err != nil {
return err
}
if resp.StatusCode != http.StatusNoContent {
var merr membersError
if err := json.Unmarshal(body, &merr); err != nil {
return err
}
return merr
}
return nil
}
func (m *httpMembersAPI) Remove(ctx context.Context, memberID string) error {
req := &membersAPIActionRemove{memberID: memberID}
resp, _, err := m.client.Do(ctx, req)
if err != nil {
return err
}
return assertStatusCode(resp.StatusCode, http.StatusNoContent, http.StatusGone)
}
type membersAPIActionList struct{}
func (l *membersAPIActionList) HTTPRequest(ep url.URL) *http.Request {
u := v2MembersURL(ep)
req, _ := http.NewRequest("GET", u.String(), nil)
return req
}
type membersAPIActionRemove struct {
memberID string
}
func (d *membersAPIActionRemove) HTTPRequest(ep url.URL) *http.Request {
u := v2MembersURL(ep)
u.Path = path.Join(u.Path, d.memberID)
req, _ := http.NewRequest("DELETE", u.String(), nil)
return req
}
type membersAPIActionAdd struct {
peerURLs types.URLs
}
func (a *membersAPIActionAdd) HTTPRequest(ep url.URL) *http.Request {
u := v2MembersURL(ep)
m := memberCreateOrUpdateRequest{PeerURLs: a.peerURLs}
b, _ := json.Marshal(&m)
req, _ := http.NewRequest("POST", u.String(), bytes.NewReader(b))
req.Header.Set("Content-Type", "application/json")
return req
}
type membersAPIActionUpdate struct {
memberID string
peerURLs types.URLs
}
func (a *membersAPIActionUpdate) HTTPRequest(ep url.URL) *http.Request {
u := v2MembersURL(ep)
m := memberCreateOrUpdateRequest{PeerURLs: a.peerURLs}
u.Path = path.Join(u.Path, a.memberID)
b, _ := json.Marshal(&m)
req, _ := http.NewRequest("PUT", u.String(), bytes.NewReader(b))
req.Header.Set("Content-Type", "application/json")
return req
}
func assertStatusCode(got int, want ...int) (err error) {
for _, w := range want {
if w == got {
return nil
}
}
return fmt.Errorf("unexpected status code %d", got)
}
// v2MembersURL add the necessary path to the provided endpoint
// to route requests to the default v2 members API.
func v2MembersURL(ep url.URL) *url.URL {
ep.Path = path.Join(ep.Path, defaultV2MembersPrefix)
return &ep
}
type membersError struct {
Message string `json:"message"`
Code int `json:"-"`
}
func (e membersError) Error() string {
return e.Message
}

65
vendor/github.com/coreos/etcd/client/srv.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"fmt"
"net"
"net/url"
)
var (
// indirection for testing
lookupSRV = net.LookupSRV
)
type srvDiscover struct{}
// NewSRVDiscover constructs a new Dicoverer that uses the stdlib to lookup SRV records.
func NewSRVDiscover() Discoverer {
return &srvDiscover{}
}
// Discover looks up the etcd servers for the domain.
func (d *srvDiscover) Discover(domain string) ([]string, error) {
var urls []*url.URL
updateURLs := func(service, scheme string) error {
_, addrs, err := lookupSRV(service, "tcp", domain)
if err != nil {
return err
}
for _, srv := range addrs {
urls = append(urls, &url.URL{
Scheme: scheme,
Host: net.JoinHostPort(srv.Target, fmt.Sprintf("%d", srv.Port)),
})
}
return nil
}
errHTTPS := updateURLs("etcd-server-ssl", "https")
errHTTP := updateURLs("etcd-server", "http")
if errHTTPS != nil && errHTTP != nil {
return nil, fmt.Errorf("dns lookup errors: %s and %s", errHTTPS, errHTTP)
}
endpoints := make([]string, len(urls))
for i := range urls {
endpoints[i] = urls[i].String()
}
return endpoints, nil
}

30
vendor/github.com/coreos/etcd/main.go generated vendored Normal file
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@ -0,0 +1,30 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package main is a simple wrapper of the real etcd entrypoint package
// (located at github.com/coreos/etcd/etcdmain) to ensure that etcd is still
// "go getable"; e.g. `go get github.com/coreos/etcd` works as expected and
// builds a binary in $GOBIN/etcd
//
// This package should NOT be extended or modified in any way; to modify the
// etcd binary, work in the `github.com/coreos/etcd/etcdmain` package.
//
package main
import "github.com/coreos/etcd/etcdmain"
func main() {
etcdmain.Main()
}

31
vendor/github.com/coreos/etcd/pkg/pathutil/path.go generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package pathutil implements utility functions for handling slash-separated
// paths.
package pathutil
import "path"
// CanonicalURLPath returns the canonical url path for p, which follows the rules:
// 1. the path always starts with "/"
// 2. replace multiple slashes with a single slash
// 3. replace each '.' '..' path name element with equivalent one
// 4. keep the trailing slash
// The function is borrowed from stdlib http.cleanPath in server.go.
func CanonicalURLPath(p string) string {
if p == "" {
return "/"
}
if p[0] != '/' {
p = "/" + p
}
np := path.Clean(p)
// path.Clean removes trailing slash except for root,
// put the trailing slash back if necessary.
if p[len(p)-1] == '/' && np != "/" {
np += "/"
}
return np
}

17
vendor/github.com/coreos/etcd/pkg/types/doc.go generated vendored Normal file
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@ -0,0 +1,17 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package types declares various data types and implements type-checking
// functions.
package types

41
vendor/github.com/coreos/etcd/pkg/types/id.go generated vendored Normal file
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@ -0,0 +1,41 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"strconv"
)
// ID represents a generic identifier which is canonically
// stored as a uint64 but is typically represented as a
// base-16 string for input/output
type ID uint64
func (i ID) String() string {
return strconv.FormatUint(uint64(i), 16)
}
// IDFromString attempts to create an ID from a base-16 string.
func IDFromString(s string) (ID, error) {
i, err := strconv.ParseUint(s, 16, 64)
return ID(i), err
}
// IDSlice implements the sort interface
type IDSlice []ID
func (p IDSlice) Len() int { return len(p) }
func (p IDSlice) Less(i, j int) bool { return uint64(p[i]) < uint64(p[j]) }
func (p IDSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] }

178
vendor/github.com/coreos/etcd/pkg/types/set.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"reflect"
"sort"
"sync"
)
type Set interface {
Add(string)
Remove(string)
Contains(string) bool
Equals(Set) bool
Length() int
Values() []string
Copy() Set
Sub(Set) Set
}
func NewUnsafeSet(values ...string) *unsafeSet {
set := &unsafeSet{make(map[string]struct{})}
for _, v := range values {
set.Add(v)
}
return set
}
func NewThreadsafeSet(values ...string) *tsafeSet {
us := NewUnsafeSet(values...)
return &tsafeSet{us, sync.RWMutex{}}
}
type unsafeSet struct {
d map[string]struct{}
}
// Add adds a new value to the set (no-op if the value is already present)
func (us *unsafeSet) Add(value string) {
us.d[value] = struct{}{}
}
// Remove removes the given value from the set
func (us *unsafeSet) Remove(value string) {
delete(us.d, value)
}
// Contains returns whether the set contains the given value
func (us *unsafeSet) Contains(value string) (exists bool) {
_, exists = us.d[value]
return
}
// ContainsAll returns whether the set contains all given values
func (us *unsafeSet) ContainsAll(values []string) bool {
for _, s := range values {
if !us.Contains(s) {
return false
}
}
return true
}
// Equals returns whether the contents of two sets are identical
func (us *unsafeSet) Equals(other Set) bool {
v1 := sort.StringSlice(us.Values())
v2 := sort.StringSlice(other.Values())
v1.Sort()
v2.Sort()
return reflect.DeepEqual(v1, v2)
}
// Length returns the number of elements in the set
func (us *unsafeSet) Length() int {
return len(us.d)
}
// Values returns the values of the Set in an unspecified order.
func (us *unsafeSet) Values() (values []string) {
values = make([]string, 0)
for val := range us.d {
values = append(values, val)
}
return
}
// Copy creates a new Set containing the values of the first
func (us *unsafeSet) Copy() Set {
cp := NewUnsafeSet()
for val := range us.d {
cp.Add(val)
}
return cp
}
// Sub removes all elements in other from the set
func (us *unsafeSet) Sub(other Set) Set {
oValues := other.Values()
result := us.Copy().(*unsafeSet)
for _, val := range oValues {
if _, ok := result.d[val]; !ok {
continue
}
delete(result.d, val)
}
return result
}
type tsafeSet struct {
us *unsafeSet
m sync.RWMutex
}
func (ts *tsafeSet) Add(value string) {
ts.m.Lock()
defer ts.m.Unlock()
ts.us.Add(value)
}
func (ts *tsafeSet) Remove(value string) {
ts.m.Lock()
defer ts.m.Unlock()
ts.us.Remove(value)
}
func (ts *tsafeSet) Contains(value string) (exists bool) {
ts.m.RLock()
defer ts.m.RUnlock()
return ts.us.Contains(value)
}
func (ts *tsafeSet) Equals(other Set) bool {
ts.m.RLock()
defer ts.m.RUnlock()
return ts.us.Equals(other)
}
func (ts *tsafeSet) Length() int {
ts.m.RLock()
defer ts.m.RUnlock()
return ts.us.Length()
}
func (ts *tsafeSet) Values() (values []string) {
ts.m.RLock()
defer ts.m.RUnlock()
return ts.us.Values()
}
func (ts *tsafeSet) Copy() Set {
ts.m.RLock()
defer ts.m.RUnlock()
usResult := ts.us.Copy().(*unsafeSet)
return &tsafeSet{usResult, sync.RWMutex{}}
}
func (ts *tsafeSet) Sub(other Set) Set {
ts.m.RLock()
defer ts.m.RUnlock()
usResult := ts.us.Sub(other).(*unsafeSet)
return &tsafeSet{usResult, sync.RWMutex{}}
}

22
vendor/github.com/coreos/etcd/pkg/types/slice.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
// Uint64Slice implements sort interface
type Uint64Slice []uint64
func (p Uint64Slice) Len() int { return len(p) }
func (p Uint64Slice) Less(i, j int) bool { return p[i] < p[j] }
func (p Uint64Slice) Swap(i, j int) { p[i], p[j] = p[j], p[i] }

74
vendor/github.com/coreos/etcd/pkg/types/urls.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"errors"
"fmt"
"net"
"net/url"
"sort"
"strings"
)
type URLs []url.URL
func NewURLs(strs []string) (URLs, error) {
all := make([]url.URL, len(strs))
if len(all) == 0 {
return nil, errors.New("no valid URLs given")
}
for i, in := range strs {
in = strings.TrimSpace(in)
u, err := url.Parse(in)
if err != nil {
return nil, err
}
if u.Scheme != "http" && u.Scheme != "https" {
return nil, fmt.Errorf("URL scheme must be http or https: %s", in)
}
if _, _, err := net.SplitHostPort(u.Host); err != nil {
return nil, fmt.Errorf(`URL address does not have the form "host:port": %s`, in)
}
if u.Path != "" {
return nil, fmt.Errorf("URL must not contain a path: %s", in)
}
all[i] = *u
}
us := URLs(all)
us.Sort()
return us, nil
}
func (us URLs) String() string {
return strings.Join(us.StringSlice(), ",")
}
func (us *URLs) Sort() {
sort.Sort(us)
}
func (us URLs) Len() int { return len(us) }
func (us URLs) Less(i, j int) bool { return us[i].String() < us[j].String() }
func (us URLs) Swap(i, j int) { us[i], us[j] = us[j], us[i] }
func (us URLs) StringSlice() []string {
out := make([]string, len(us))
for i := range us {
out[i] = us[i].String()
}
return out
}

91
vendor/github.com/coreos/etcd/pkg/types/urlsmap.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"fmt"
"sort"
"strings"
)
type URLsMap map[string]URLs
// NewURLsMap returns a URLsMap instantiated from the given string,
// which consists of discovery-formatted names-to-URLs, like:
// mach0=http://1.1.1.1:2380,mach0=http://2.2.2.2::2380,mach1=http://3.3.3.3:2380,mach2=http://4.4.4.4:2380
func NewURLsMap(s string) (URLsMap, error) {
m := parse(s)
cl := URLsMap{}
for name, urls := range m {
us, err := NewURLs(urls)
if err != nil {
return nil, err
}
cl[name] = us
}
return cl, nil
}
// String returns NameURLPairs into discovery-formatted name-to-URLs sorted by name.
func (c URLsMap) String() string {
pairs := make([]string, 0)
for name, urls := range c {
for _, url := range urls {
pairs = append(pairs, fmt.Sprintf("%s=%s", name, url.String()))
}
}
sort.Strings(pairs)
return strings.Join(pairs, ",")
}
// URLs returns a list of all URLs.
// The returned list is sorted in ascending lexicographical order.
func (c URLsMap) URLs() []string {
urls := make([]string, 0)
for _, us := range c {
for _, u := range us {
urls = append(urls, u.String())
}
}
sort.Strings(urls)
return urls
}
func (c URLsMap) Len() int {
return len(c)
}
// parse parses the given string and returns a map listing the values specified for each key.
func parse(s string) map[string][]string {
m := make(map[string][]string)
for s != "" {
key := s
if i := strings.IndexAny(key, ","); i >= 0 {
key, s = key[:i], key[i+1:]
} else {
s = ""
}
if key == "" {
continue
}
value := ""
if i := strings.Index(key, "="); i >= 0 {
key, value = key[:i], key[i+1:]
}
m[key] = append(m[key], value)
}
return m
}

202
vendor/github.com/coreos/go-oidc/LICENSE generated vendored Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

5
vendor/github.com/coreos/go-oidc/NOTICE generated vendored Normal file
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@ -0,0 +1,5 @@
CoreOS Project
Copyright 2014 CoreOS, Inc
This product includes software developed at CoreOS, Inc.
(http://www.coreos.com/).

150
vendor/github.com/coreos/go-oidc/gen.go generated vendored Normal file
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// +build ignore
// This file is used to generate keys for tests.
package main
import (
"bytes"
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"text/template"
jose "gopkg.in/square/go-jose.v2"
)
type key struct {
name string
new func() (crypto.Signer, error)
}
var keys = []key{
{
"ECDSA_256", func() (crypto.Signer, error) {
return ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
},
},
{
"ECDSA_384", func() (crypto.Signer, error) {
return ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
},
},
{
"ECDSA_521", func() (crypto.Signer, error) {
return ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
},
},
{
"RSA_1024", func() (crypto.Signer, error) {
return rsa.GenerateKey(rand.Reader, 1024)
},
},
{
"RSA_2048", func() (crypto.Signer, error) {
return rsa.GenerateKey(rand.Reader, 2048)
},
},
{
"RSA_4096", func() (crypto.Signer, error) {
return rsa.GenerateKey(rand.Reader, 4096)
},
},
}
func newJWK(k key, prefix, ident string) (privBytes, pubBytes []byte, err error) {
priv, err := k.new()
if err != nil {
return nil, nil, fmt.Errorf("generate %s: %v", k.name, err)
}
pub := priv.Public()
privKey := &jose.JSONWebKey{Key: priv}
thumbprint, err := privKey.Thumbprint(crypto.SHA256)
if err != nil {
return nil, nil, fmt.Errorf("computing thumbprint: %v", err)
}
keyID := hex.EncodeToString(thumbprint)
privKey.KeyID = keyID
pubKey := &jose.JSONWebKey{Key: pub, KeyID: keyID}
privBytes, err = json.MarshalIndent(privKey, prefix, ident)
if err != nil {
return
}
pubBytes, err = json.MarshalIndent(pubKey, prefix, ident)
return
}
type keyData struct {
Name string
Priv string
Pub string
}
var tmpl = template.Must(template.New("").Parse(`// +build !golint
// This file contains statically created JWKs for tests created by gen.go
package oidc
import (
"encoding/json"
jose "gopkg.in/square/go-jose.v2"
)
func mustLoadJWK(s string) jose.JSONWebKey {
var jwk jose.JSONWebKey
if err := json.Unmarshal([]byte(s), &jwk); err != nil {
panic(err)
}
return jwk
}
var (
{{- range $i, $key := .Keys }}
testKey{{ $key.Name }} = mustLoadJWK(` + "`" + `{{ $key.Pub }}` + "`" + `)
testKey{{ $key.Name }}_Priv = mustLoadJWK(` + "`" + `{{ $key.Priv }}` + "`" + `)
{{ end -}}
)
`))
func main() {
var tmplData struct {
Keys []keyData
}
for _, k := range keys {
for i := 0; i < 4; i++ {
log.Printf("generating %s", k.name)
priv, pub, err := newJWK(k, "\t", "\t")
if err != nil {
log.Fatal(err)
}
name := fmt.Sprintf("%s_%d", k.name, i)
tmplData.Keys = append(tmplData.Keys, keyData{
Name: name,
Priv: string(priv),
Pub: string(pub),
})
}
}
buff := new(bytes.Buffer)
if err := tmpl.Execute(buff, tmplData); err != nil {
log.Fatalf("excuting template: %v", err)
}
if err := ioutil.WriteFile("jose_test.go", buff.Bytes(), 0644); err != nil {
log.Fatal(err)
}
}

7
vendor/github.com/coreos/go-oidc/http/client.go generated vendored Normal file
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@ -0,0 +1,7 @@
package http
import "net/http"
type Client interface {
Do(*http.Request) (*http.Response, error)
}

2
vendor/github.com/coreos/go-oidc/http/doc.go generated vendored Normal file
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// Package http is DEPRECATED. Use net/http instead.
package http

156
vendor/github.com/coreos/go-oidc/http/http.go generated vendored Normal file
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@ -0,0 +1,156 @@
package http
import (
"encoding/base64"
"encoding/json"
"errors"
"log"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
)
func WriteError(w http.ResponseWriter, code int, msg string) {
e := struct {
Error string `json:"error"`
}{
Error: msg,
}
b, err := json.Marshal(e)
if err != nil {
log.Printf("go-oidc: failed to marshal %#v: %v", e, err)
code = http.StatusInternalServerError
b = []byte(`{"error":"server_error"}`)
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(code)
w.Write(b)
}
// BasicAuth parses a username and password from the request's
// Authorization header. This was pulled from golang master:
// https://codereview.appspot.com/76540043
func BasicAuth(r *http.Request) (username, password string, ok bool) {
auth := r.Header.Get("Authorization")
if auth == "" {
return
}
if !strings.HasPrefix(auth, "Basic ") {
return
}
c, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(auth, "Basic "))
if err != nil {
return
}
cs := string(c)
s := strings.IndexByte(cs, ':')
if s < 0 {
return
}
return cs[:s], cs[s+1:], true
}
func cacheControlMaxAge(hdr string) (time.Duration, bool, error) {
for _, field := range strings.Split(hdr, ",") {
parts := strings.SplitN(strings.TrimSpace(field), "=", 2)
k := strings.ToLower(strings.TrimSpace(parts[0]))
if k != "max-age" {
continue
}
if len(parts) == 1 {
return 0, false, errors.New("max-age has no value")
}
v := strings.TrimSpace(parts[1])
if v == "" {
return 0, false, errors.New("max-age has empty value")
}
age, err := strconv.Atoi(v)
if err != nil {
return 0, false, err
}
if age <= 0 {
return 0, false, nil
}
return time.Duration(age) * time.Second, true, nil
}
return 0, false, nil
}
func expires(date, expires string) (time.Duration, bool, error) {
if date == "" || expires == "" {
return 0, false, nil
}
te, err := time.Parse(time.RFC1123, expires)
if err != nil {
return 0, false, err
}
td, err := time.Parse(time.RFC1123, date)
if err != nil {
return 0, false, err
}
ttl := te.Sub(td)
// headers indicate data already expired, caller should not
// have to care about this case
if ttl <= 0 {
return 0, false, nil
}
return ttl, true, nil
}
func Cacheable(hdr http.Header) (time.Duration, bool, error) {
ttl, ok, err := cacheControlMaxAge(hdr.Get("Cache-Control"))
if err != nil || ok {
return ttl, ok, err
}
return expires(hdr.Get("Date"), hdr.Get("Expires"))
}
// MergeQuery appends additional query values to an existing URL.
func MergeQuery(u url.URL, q url.Values) url.URL {
uv := u.Query()
for k, vs := range q {
for _, v := range vs {
uv.Add(k, v)
}
}
u.RawQuery = uv.Encode()
return u
}
// NewResourceLocation appends a resource id to the end of the requested URL path.
func NewResourceLocation(reqURL *url.URL, id string) string {
var u url.URL
u = *reqURL
u.Path = path.Join(u.Path, id)
u.RawQuery = ""
u.Fragment = ""
return u.String()
}
// CopyRequest returns a clone of the provided *http.Request.
// The returned object is a shallow copy of the struct and a
// deep copy of its Header field.
func CopyRequest(r *http.Request) *http.Request {
r2 := *r
r2.Header = make(http.Header)
for k, s := range r.Header {
r2.Header[k] = s
}
return &r2
}

29
vendor/github.com/coreos/go-oidc/http/url.go generated vendored Normal file
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@ -0,0 +1,29 @@
package http
import (
"errors"
"net/url"
)
// ParseNonEmptyURL checks that a string is a parsable URL which is also not empty
// since `url.Parse("")` does not return an error. Must contian a scheme and a host.
func ParseNonEmptyURL(u string) (*url.URL, error) {
if u == "" {
return nil, errors.New("url is empty")
}
ur, err := url.Parse(u)
if err != nil {
return nil, err
}
if ur.Scheme == "" {
return nil, errors.New("url scheme is empty")
}
if ur.Host == "" {
return nil, errors.New("url host is empty")
}
return ur, nil
}

20
vendor/github.com/coreos/go-oidc/jose.go generated vendored Normal file
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@ -0,0 +1,20 @@
// +build !golint
// Don't lint this file. We don't want to have to add a comment to each constant.
package oidc
const (
// JOSE asymmetric signing algorithm values as defined by RFC 7518
//
// see: https://tools.ietf.org/html/rfc7518#section-3.1
RS256 = "RS256" // RSASSA-PKCS-v1.5 using SHA-256
RS384 = "RS384" // RSASSA-PKCS-v1.5 using SHA-384
RS512 = "RS512" // RSASSA-PKCS-v1.5 using SHA-512
ES256 = "ES256" // ECDSA using P-256 and SHA-256
ES384 = "ES384" // ECDSA using P-384 and SHA-384
ES512 = "ES512" // ECDSA using P-521 and SHA-512
PS256 = "PS256" // RSASSA-PSS using SHA256 and MGF1-SHA256
PS384 = "PS384" // RSASSA-PSS using SHA384 and MGF1-SHA384
PS512 = "PS512" // RSASSA-PSS using SHA512 and MGF1-SHA512
)

126
vendor/github.com/coreos/go-oidc/jose/claims.go generated vendored Normal file
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package jose
import (
"encoding/json"
"fmt"
"math"
"time"
)
type Claims map[string]interface{}
func (c Claims) Add(name string, value interface{}) {
c[name] = value
}
func (c Claims) StringClaim(name string) (string, bool, error) {
cl, ok := c[name]
if !ok {
return "", false, nil
}
v, ok := cl.(string)
if !ok {
return "", false, fmt.Errorf("unable to parse claim as string: %v", name)
}
return v, true, nil
}
func (c Claims) StringsClaim(name string) ([]string, bool, error) {
cl, ok := c[name]
if !ok {
return nil, false, nil
}
if v, ok := cl.([]string); ok {
return v, true, nil
}
// When unmarshaled, []string will become []interface{}.
if v, ok := cl.([]interface{}); ok {
var ret []string
for _, vv := range v {
str, ok := vv.(string)
if !ok {
return nil, false, fmt.Errorf("unable to parse claim as string array: %v", name)
}
ret = append(ret, str)
}
return ret, true, nil
}
return nil, false, fmt.Errorf("unable to parse claim as string array: %v", name)
}
func (c Claims) Int64Claim(name string) (int64, bool, error) {
cl, ok := c[name]
if !ok {
return 0, false, nil
}
v, ok := cl.(int64)
if !ok {
vf, ok := cl.(float64)
if !ok {
return 0, false, fmt.Errorf("unable to parse claim as int64: %v", name)
}
v = int64(vf)
}
return v, true, nil
}
func (c Claims) Float64Claim(name string) (float64, bool, error) {
cl, ok := c[name]
if !ok {
return 0, false, nil
}
v, ok := cl.(float64)
if !ok {
vi, ok := cl.(int64)
if !ok {
return 0, false, fmt.Errorf("unable to parse claim as float64: %v", name)
}
v = float64(vi)
}
return v, true, nil
}
func (c Claims) TimeClaim(name string) (time.Time, bool, error) {
v, ok, err := c.Float64Claim(name)
if !ok || err != nil {
return time.Time{}, ok, err
}
s := math.Trunc(v)
ns := (v - s) * math.Pow(10, 9)
return time.Unix(int64(s), int64(ns)).UTC(), true, nil
}
func decodeClaims(payload []byte) (Claims, error) {
var c Claims
if err := json.Unmarshal(payload, &c); err != nil {
return nil, fmt.Errorf("malformed JWT claims, unable to decode: %v", err)
}
return c, nil
}
func marshalClaims(c Claims) ([]byte, error) {
b, err := json.Marshal(c)
if err != nil {
return nil, err
}
return b, nil
}
func encodeClaims(c Claims) (string, error) {
b, err := marshalClaims(c)
if err != nil {
return "", err
}
return encodeSegment(b), nil
}

2
vendor/github.com/coreos/go-oidc/jose/doc.go generated vendored Normal file
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// Package jose is DEPRECATED. Use gopkg.in/square/go-jose.v2 instead.
package jose

112
vendor/github.com/coreos/go-oidc/jose/jose.go generated vendored Normal file
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package jose
import (
"encoding/base64"
"encoding/json"
"fmt"
"strings"
)
const (
HeaderMediaType = "typ"
HeaderKeyAlgorithm = "alg"
HeaderKeyID = "kid"
)
const (
// Encryption Algorithm Header Parameter Values for JWS
// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#page-6
AlgHS256 = "HS256"
AlgHS384 = "HS384"
AlgHS512 = "HS512"
AlgRS256 = "RS256"
AlgRS384 = "RS384"
AlgRS512 = "RS512"
AlgES256 = "ES256"
AlgES384 = "ES384"
AlgES512 = "ES512"
AlgPS256 = "PS256"
AlgPS384 = "PS384"
AlgPS512 = "PS512"
AlgNone = "none"
)
const (
// Algorithm Header Parameter Values for JWE
// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#section-4.1
AlgRSA15 = "RSA1_5"
AlgRSAOAEP = "RSA-OAEP"
AlgRSAOAEP256 = "RSA-OAEP-256"
AlgA128KW = "A128KW"
AlgA192KW = "A192KW"
AlgA256KW = "A256KW"
AlgDir = "dir"
AlgECDHES = "ECDH-ES"
AlgECDHESA128KW = "ECDH-ES+A128KW"
AlgECDHESA192KW = "ECDH-ES+A192KW"
AlgECDHESA256KW = "ECDH-ES+A256KW"
AlgA128GCMKW = "A128GCMKW"
AlgA192GCMKW = "A192GCMKW"
AlgA256GCMKW = "A256GCMKW"
AlgPBES2HS256A128KW = "PBES2-HS256+A128KW"
AlgPBES2HS384A192KW = "PBES2-HS384+A192KW"
AlgPBES2HS512A256KW = "PBES2-HS512+A256KW"
)
const (
// Encryption Algorithm Header Parameter Values for JWE
// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#page-22
EncA128CBCHS256 = "A128CBC-HS256"
EncA128CBCHS384 = "A128CBC-HS384"
EncA256CBCHS512 = "A256CBC-HS512"
EncA128GCM = "A128GCM"
EncA192GCM = "A192GCM"
EncA256GCM = "A256GCM"
)
type JOSEHeader map[string]string
func (j JOSEHeader) Validate() error {
if _, exists := j[HeaderKeyAlgorithm]; !exists {
return fmt.Errorf("header missing %q parameter", HeaderKeyAlgorithm)
}
return nil
}
func decodeHeader(seg string) (JOSEHeader, error) {
b, err := decodeSegment(seg)
if err != nil {
return nil, err
}
var h JOSEHeader
err = json.Unmarshal(b, &h)
if err != nil {
return nil, err
}
return h, nil
}
func encodeHeader(h JOSEHeader) (string, error) {
b, err := json.Marshal(h)
if err != nil {
return "", err
}
return encodeSegment(b), nil
}
// Decode JWT specific base64url encoding with padding stripped
func decodeSegment(seg string) ([]byte, error) {
if l := len(seg) % 4; l != 0 {
seg += strings.Repeat("=", 4-l)
}
return base64.URLEncoding.DecodeString(seg)
}
// Encode JWT specific base64url encoding with padding stripped
func encodeSegment(seg []byte) string {
return strings.TrimRight(base64.URLEncoding.EncodeToString(seg), "=")
}

135
vendor/github.com/coreos/go-oidc/jose/jwk.go generated vendored Normal file
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package jose
import (
"bytes"
"encoding/base64"
"encoding/binary"
"encoding/json"
"math/big"
"strings"
)
// JSON Web Key
// https://tools.ietf.org/html/draft-ietf-jose-json-web-key-36#page-5
type JWK struct {
ID string
Type string
Alg string
Use string
Exponent int
Modulus *big.Int
Secret []byte
}
type jwkJSON struct {
ID string `json:"kid"`
Type string `json:"kty"`
Alg string `json:"alg"`
Use string `json:"use"`
Exponent string `json:"e"`
Modulus string `json:"n"`
}
func (j *JWK) MarshalJSON() ([]byte, error) {
t := jwkJSON{
ID: j.ID,
Type: j.Type,
Alg: j.Alg,
Use: j.Use,
Exponent: encodeExponent(j.Exponent),
Modulus: encodeModulus(j.Modulus),
}
return json.Marshal(&t)
}
func (j *JWK) UnmarshalJSON(data []byte) error {
var t jwkJSON
err := json.Unmarshal(data, &t)
if err != nil {
return err
}
e, err := decodeExponent(t.Exponent)
if err != nil {
return err
}
n, err := decodeModulus(t.Modulus)
if err != nil {
return err
}
j.ID = t.ID
j.Type = t.Type
j.Alg = t.Alg
j.Use = t.Use
j.Exponent = e
j.Modulus = n
return nil
}
type JWKSet struct {
Keys []JWK `json:"keys"`
}
func decodeExponent(e string) (int, error) {
decE, err := decodeBase64URLPaddingOptional(e)
if err != nil {
return 0, err
}
var eBytes []byte
if len(decE) < 8 {
eBytes = make([]byte, 8-len(decE), 8)
eBytes = append(eBytes, decE...)
} else {
eBytes = decE
}
eReader := bytes.NewReader(eBytes)
var E uint64
err = binary.Read(eReader, binary.BigEndian, &E)
if err != nil {
return 0, err
}
return int(E), nil
}
func encodeExponent(e int) string {
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, uint64(e))
var idx int
for ; idx < 8; idx++ {
if b[idx] != 0x0 {
break
}
}
return base64.RawURLEncoding.EncodeToString(b[idx:])
}
// Turns a URL encoded modulus of a key into a big int.
func decodeModulus(n string) (*big.Int, error) {
decN, err := decodeBase64URLPaddingOptional(n)
if err != nil {
return nil, err
}
N := big.NewInt(0)
N.SetBytes(decN)
return N, nil
}
func encodeModulus(n *big.Int) string {
return base64.RawURLEncoding.EncodeToString(n.Bytes())
}
// decodeBase64URLPaddingOptional decodes Base64 whether there is padding or not.
// The stdlib version currently doesn't handle this.
// We can get rid of this is if this bug:
// https://github.com/golang/go/issues/4237
// ever closes.
func decodeBase64URLPaddingOptional(e string) ([]byte, error) {
if m := len(e) % 4; m != 0 {
e += strings.Repeat("=", 4-m)
}
return base64.URLEncoding.DecodeString(e)
}

51
vendor/github.com/coreos/go-oidc/jose/jws.go generated vendored Normal file
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package jose
import (
"fmt"
"strings"
)
type JWS struct {
RawHeader string
Header JOSEHeader
RawPayload string
Payload []byte
Signature []byte
}
// Given a raw encoded JWS token parses it and verifies the structure.
func ParseJWS(raw string) (JWS, error) {
parts := strings.Split(raw, ".")
if len(parts) != 3 {
return JWS{}, fmt.Errorf("malformed JWS, only %d segments", len(parts))
}
rawSig := parts[2]
jws := JWS{
RawHeader: parts[0],
RawPayload: parts[1],
}
header, err := decodeHeader(jws.RawHeader)
if err != nil {
return JWS{}, fmt.Errorf("malformed JWS, unable to decode header, %s", err)
}
if err = header.Validate(); err != nil {
return JWS{}, fmt.Errorf("malformed JWS, %s", err)
}
jws.Header = header
payload, err := decodeSegment(jws.RawPayload)
if err != nil {
return JWS{}, fmt.Errorf("malformed JWS, unable to decode payload: %s", err)
}
jws.Payload = payload
sig, err := decodeSegment(rawSig)
if err != nil {
return JWS{}, fmt.Errorf("malformed JWS, unable to decode signature: %s", err)
}
jws.Signature = sig
return jws, nil
}

82
vendor/github.com/coreos/go-oidc/jose/jwt.go generated vendored Normal file
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package jose
import "strings"
type JWT JWS
func ParseJWT(token string) (jwt JWT, err error) {
jws, err := ParseJWS(token)
if err != nil {
return
}
return JWT(jws), nil
}
func NewJWT(header JOSEHeader, claims Claims) (jwt JWT, err error) {
jwt = JWT{}
jwt.Header = header
jwt.Header[HeaderMediaType] = "JWT"
claimBytes, err := marshalClaims(claims)
if err != nil {
return
}
jwt.Payload = claimBytes
eh, err := encodeHeader(header)
if err != nil {
return
}
jwt.RawHeader = eh
ec, err := encodeClaims(claims)
if err != nil {
return
}
jwt.RawPayload = ec
return
}
func (j *JWT) KeyID() (string, bool) {
kID, ok := j.Header[HeaderKeyID]
return kID, ok
}
func (j *JWT) Claims() (Claims, error) {
return decodeClaims(j.Payload)
}
// Encoded data part of the token which may be signed.
func (j *JWT) Data() string {
return strings.Join([]string{j.RawHeader, j.RawPayload}, ".")
}
// Full encoded JWT token string in format: header.claims.signature
func (j *JWT) Encode() string {
d := j.Data()
s := encodeSegment(j.Signature)
return strings.Join([]string{d, s}, ".")
}
func NewSignedJWT(claims Claims, s Signer) (*JWT, error) {
header := JOSEHeader{
HeaderKeyAlgorithm: s.Alg(),
HeaderKeyID: s.ID(),
}
jwt, err := NewJWT(header, claims)
if err != nil {
return nil, err
}
sig, err := s.Sign([]byte(jwt.Data()))
if err != nil {
return nil, err
}
jwt.Signature = sig
return &jwt, nil
}

24
vendor/github.com/coreos/go-oidc/jose/sig.go generated vendored Executable file
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@ -0,0 +1,24 @@
package jose
import (
"fmt"
)
type Verifier interface {
ID() string
Alg() string
Verify(sig []byte, data []byte) error
}
type Signer interface {
Verifier
Sign(data []byte) (sig []byte, err error)
}
func NewVerifier(jwk JWK) (Verifier, error) {
if jwk.Type != "RSA" {
return nil, fmt.Errorf("unsupported key type %q", jwk.Type)
}
return NewVerifierRSA(jwk)
}

67
vendor/github.com/coreos/go-oidc/jose/sig_rsa.go generated vendored Executable file
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package jose
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"fmt"
)
type VerifierRSA struct {
KeyID string
Hash crypto.Hash
PublicKey rsa.PublicKey
}
type SignerRSA struct {
PrivateKey rsa.PrivateKey
VerifierRSA
}
func NewVerifierRSA(jwk JWK) (*VerifierRSA, error) {
if jwk.Alg != "" && jwk.Alg != "RS256" {
return nil, fmt.Errorf("unsupported key algorithm %q", jwk.Alg)
}
v := VerifierRSA{
KeyID: jwk.ID,
PublicKey: rsa.PublicKey{
N: jwk.Modulus,
E: jwk.Exponent,
},
Hash: crypto.SHA256,
}
return &v, nil
}
func NewSignerRSA(kid string, key rsa.PrivateKey) *SignerRSA {
return &SignerRSA{
PrivateKey: key,
VerifierRSA: VerifierRSA{
KeyID: kid,
PublicKey: key.PublicKey,
Hash: crypto.SHA256,
},
}
}
func (v *VerifierRSA) ID() string {
return v.KeyID
}
func (v *VerifierRSA) Alg() string {
return "RS256"
}
func (v *VerifierRSA) Verify(sig []byte, data []byte) error {
h := v.Hash.New()
h.Write(data)
return rsa.VerifyPKCS1v15(&v.PublicKey, v.Hash, h.Sum(nil), sig)
}
func (s *SignerRSA) Sign(data []byte) ([]byte, error) {
h := s.Hash.New()
h.Write(data)
return rsa.SignPKCS1v15(rand.Reader, &s.PrivateKey, s.Hash, h.Sum(nil))
}

200
vendor/github.com/coreos/go-oidc/jwks.go generated vendored Normal file
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package oidc
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"sync"
"time"
"github.com/pquerna/cachecontrol"
"golang.org/x/net/context"
"golang.org/x/net/context/ctxhttp"
jose "gopkg.in/square/go-jose.v2"
)
// keysExpiryDelta is the allowed clock skew between a client and the OpenID Connect
// server.
//
// When keys expire, they are valid for this amount of time after.
//
// If the keys have not expired, and an ID Token claims it was signed by a key not in
// the cache, if and only if the keys expire in this amount of time, the keys will be
// updated.
const keysExpiryDelta = 30 * time.Second
func newRemoteKeySet(ctx context.Context, jwksURL string, now func() time.Time) *remoteKeySet {
if now == nil {
now = time.Now
}
return &remoteKeySet{jwksURL: jwksURL, ctx: ctx, now: now}
}
type remoteKeySet struct {
jwksURL string
ctx context.Context
now func() time.Time
// guard all other fields
mu sync.Mutex
// inflightCtx suppresses parallel execution of updateKeys and allows
// multiple goroutines to wait for its result.
// Its Err() method returns any errors encountered during updateKeys.
//
// If nil, there is no inflight updateKeys request.
inflightCtx *inflight
// A set of cached keys and their expiry.
cachedKeys []jose.JSONWebKey
expiry time.Time
}
// inflight is used to wait on some in-flight request from multiple goroutines
type inflight struct {
done chan struct{}
err error
}
// Done returns a channel that is closed when the inflight request finishes.
func (i *inflight) Done() <-chan struct{} {
return i.done
}
// Err returns any error encountered during request execution. May be nil.
func (i *inflight) Err() error {
return i.err
}
// Cancel signals completion of the inflight request with error err.
// Must be called only once for particular inflight instance.
func (i *inflight) Cancel(err error) {
i.err = err
close(i.done)
}
func (r *remoteKeySet) keysWithIDFromCache(keyIDs []string) ([]jose.JSONWebKey, bool) {
r.mu.Lock()
keys, expiry := r.cachedKeys, r.expiry
r.mu.Unlock()
// Have the keys expired?
if expiry.Add(keysExpiryDelta).Before(r.now()) {
return nil, false
}
var signingKeys []jose.JSONWebKey
for _, key := range keys {
if contains(keyIDs, key.KeyID) {
signingKeys = append(signingKeys, key)
}
}
if len(signingKeys) == 0 {
// Are the keys about to expire?
if r.now().Add(keysExpiryDelta).After(expiry) {
return nil, false
}
}
return signingKeys, true
}
func (r *remoteKeySet) keysWithID(ctx context.Context, keyIDs []string) ([]jose.JSONWebKey, error) {
keys, ok := r.keysWithIDFromCache(keyIDs)
if ok {
return keys, nil
}
var inflightCtx *inflight
func() {
r.mu.Lock()
defer r.mu.Unlock()
// If there's not a current inflight request, create one.
if r.inflightCtx == nil {
inflightCtx := &inflight{make(chan struct{}), nil}
r.inflightCtx = inflightCtx
go func() {
// TODO(ericchiang): Upstream Kubernetes request that we recover every time
// we spawn a goroutine, because panics in a goroutine will bring down the
// entire program. There's no way to recover from another goroutine's panic.
//
// Most users actually want to let the panic propagate and bring down the
// program because it implies some unrecoverable state.
//
// Add a context key to allow the recover behavior.
//
// See: https://github.com/coreos/go-oidc/issues/89
// Sync keys and close inflightCtx when that's done.
// Use the remoteKeySet's context instead of the requests context
// because a re-sync is unique to the keys set and will span multiple
// requests.
inflightCtx.Cancel(r.updateKeys(r.ctx))
r.mu.Lock()
defer r.mu.Unlock()
r.inflightCtx = nil
}()
}
inflightCtx = r.inflightCtx
}()
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-inflightCtx.Done():
if err := inflightCtx.Err(); err != nil {
return nil, err
}
}
// Since we've just updated keys, we don't care about the cache miss.
keys, _ = r.keysWithIDFromCache(keyIDs)
return keys, nil
}
func (r *remoteKeySet) updateKeys(ctx context.Context) error {
req, err := http.NewRequest("GET", r.jwksURL, nil)
if err != nil {
return fmt.Errorf("oidc: can't create request: %v", err)
}
resp, err := ctxhttp.Do(ctx, clientFromContext(ctx), req)
if err != nil {
return fmt.Errorf("oidc: get keys failed %v", err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("oidc: read response body: %v", err)
}
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("oidc: get keys failed: %s %s", resp.Status, body)
}
var keySet jose.JSONWebKeySet
if err := json.Unmarshal(body, &keySet); err != nil {
return fmt.Errorf("oidc: failed to decode keys: %v %s", err, body)
}
// If the server doesn't provide cache control headers, assume the
// keys expire immediately.
expiry := r.now()
_, e, err := cachecontrol.CachableResponse(req, resp, cachecontrol.Options{})
if err == nil && e.After(expiry) {
expiry = e
}
r.mu.Lock()
defer r.mu.Unlock()
r.cachedKeys = keySet.Keys
r.expiry = expiry
return nil
}

2
vendor/github.com/coreos/go-oidc/key/doc.go generated vendored Normal file
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// Package key is DEPRECATED. Use github.com/coreos/go-oidc instead.
package key

153
vendor/github.com/coreos/go-oidc/key/key.go generated vendored Normal file
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package key
import (
"crypto/rand"
"crypto/rsa"
"encoding/hex"
"encoding/json"
"io"
"time"
"github.com/coreos/go-oidc/jose"
)
func NewPublicKey(jwk jose.JWK) *PublicKey {
return &PublicKey{jwk: jwk}
}
type PublicKey struct {
jwk jose.JWK
}
func (k *PublicKey) MarshalJSON() ([]byte, error) {
return json.Marshal(&k.jwk)
}
func (k *PublicKey) UnmarshalJSON(data []byte) error {
var jwk jose.JWK
if err := json.Unmarshal(data, &jwk); err != nil {
return err
}
k.jwk = jwk
return nil
}
func (k *PublicKey) ID() string {
return k.jwk.ID
}
func (k *PublicKey) Verifier() (jose.Verifier, error) {
return jose.NewVerifierRSA(k.jwk)
}
type PrivateKey struct {
KeyID string
PrivateKey *rsa.PrivateKey
}
func (k *PrivateKey) ID() string {
return k.KeyID
}
func (k *PrivateKey) Signer() jose.Signer {
return jose.NewSignerRSA(k.ID(), *k.PrivateKey)
}
func (k *PrivateKey) JWK() jose.JWK {
return jose.JWK{
ID: k.KeyID,
Type: "RSA",
Alg: "RS256",
Use: "sig",
Exponent: k.PrivateKey.PublicKey.E,
Modulus: k.PrivateKey.PublicKey.N,
}
}
type KeySet interface {
ExpiresAt() time.Time
}
type PublicKeySet struct {
keys []PublicKey
index map[string]*PublicKey
expiresAt time.Time
}
func NewPublicKeySet(jwks []jose.JWK, exp time.Time) *PublicKeySet {
keys := make([]PublicKey, len(jwks))
index := make(map[string]*PublicKey)
for i, jwk := range jwks {
keys[i] = *NewPublicKey(jwk)
index[keys[i].ID()] = &keys[i]
}
return &PublicKeySet{
keys: keys,
index: index,
expiresAt: exp,
}
}
func (s *PublicKeySet) ExpiresAt() time.Time {
return s.expiresAt
}
func (s *PublicKeySet) Keys() []PublicKey {
return s.keys
}
func (s *PublicKeySet) Key(id string) *PublicKey {
return s.index[id]
}
type PrivateKeySet struct {
keys []*PrivateKey
ActiveKeyID string
expiresAt time.Time
}
func NewPrivateKeySet(keys []*PrivateKey, exp time.Time) *PrivateKeySet {
return &PrivateKeySet{
keys: keys,
ActiveKeyID: keys[0].ID(),
expiresAt: exp.UTC(),
}
}
func (s *PrivateKeySet) Keys() []*PrivateKey {
return s.keys
}
func (s *PrivateKeySet) ExpiresAt() time.Time {
return s.expiresAt
}
func (s *PrivateKeySet) Active() *PrivateKey {
for i, k := range s.keys {
if k.ID() == s.ActiveKeyID {
return s.keys[i]
}
}
return nil
}
type GeneratePrivateKeyFunc func() (*PrivateKey, error)
func GeneratePrivateKey() (*PrivateKey, error) {
pk, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, err
}
keyID := make([]byte, 20)
if _, err := io.ReadFull(rand.Reader, keyID); err != nil {
return nil, err
}
k := PrivateKey{
KeyID: hex.EncodeToString(keyID),
PrivateKey: pk,
}
return &k, nil
}

99
vendor/github.com/coreos/go-oidc/key/manager.go generated vendored Normal file
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package key
import (
"errors"
"time"
"github.com/jonboulle/clockwork"
"github.com/coreos/go-oidc/jose"
"github.com/coreos/pkg/health"
)
type PrivateKeyManager interface {
ExpiresAt() time.Time
Signer() (jose.Signer, error)
JWKs() ([]jose.JWK, error)
PublicKeys() ([]PublicKey, error)
WritableKeySetRepo
health.Checkable
}
func NewPrivateKeyManager() PrivateKeyManager {
return &privateKeyManager{
clock: clockwork.NewRealClock(),
}
}
type privateKeyManager struct {
keySet *PrivateKeySet
clock clockwork.Clock
}
func (m *privateKeyManager) ExpiresAt() time.Time {
if m.keySet == nil {
return m.clock.Now().UTC()
}
return m.keySet.ExpiresAt()
}
func (m *privateKeyManager) Signer() (jose.Signer, error) {
if err := m.Healthy(); err != nil {
return nil, err
}
return m.keySet.Active().Signer(), nil
}
func (m *privateKeyManager) JWKs() ([]jose.JWK, error) {
if err := m.Healthy(); err != nil {
return nil, err
}
keys := m.keySet.Keys()
jwks := make([]jose.JWK, len(keys))
for i, k := range keys {
jwks[i] = k.JWK()
}
return jwks, nil
}
func (m *privateKeyManager) PublicKeys() ([]PublicKey, error) {
jwks, err := m.JWKs()
if err != nil {
return nil, err
}
keys := make([]PublicKey, len(jwks))
for i, jwk := range jwks {
keys[i] = *NewPublicKey(jwk)
}
return keys, nil
}
func (m *privateKeyManager) Healthy() error {
if m.keySet == nil {
return errors.New("private key manager uninitialized")
}
if len(m.keySet.Keys()) == 0 {
return errors.New("private key manager zero keys")
}
if m.keySet.ExpiresAt().Before(m.clock.Now().UTC()) {
return errors.New("private key manager keys expired")
}
return nil
}
func (m *privateKeyManager) Set(keySet KeySet) error {
privKeySet, ok := keySet.(*PrivateKeySet)
if !ok {
return errors.New("unable to cast to PrivateKeySet")
}
m.keySet = privKeySet
return nil
}

55
vendor/github.com/coreos/go-oidc/key/repo.go generated vendored Normal file
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package key
import (
"errors"
"sync"
)
var ErrorNoKeys = errors.New("no keys found")
type WritableKeySetRepo interface {
Set(KeySet) error
}
type ReadableKeySetRepo interface {
Get() (KeySet, error)
}
type PrivateKeySetRepo interface {
WritableKeySetRepo
ReadableKeySetRepo
}
func NewPrivateKeySetRepo() PrivateKeySetRepo {
return &memPrivateKeySetRepo{}
}
type memPrivateKeySetRepo struct {
mu sync.RWMutex
pks PrivateKeySet
}
func (r *memPrivateKeySetRepo) Set(ks KeySet) error {
pks, ok := ks.(*PrivateKeySet)
if !ok {
return errors.New("unable to cast to PrivateKeySet")
} else if pks == nil {
return errors.New("nil KeySet")
}
r.mu.Lock()
defer r.mu.Unlock()
r.pks = *pks
return nil
}
func (r *memPrivateKeySetRepo) Get() (KeySet, error) {
r.mu.RLock()
defer r.mu.RUnlock()
if r.pks.keys == nil {
return nil, ErrorNoKeys
}
return KeySet(&r.pks), nil
}

159
vendor/github.com/coreos/go-oidc/key/rotate.go generated vendored Normal file
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package key
import (
"errors"
"log"
"time"
ptime "github.com/coreos/pkg/timeutil"
"github.com/jonboulle/clockwork"
)
var (
ErrorPrivateKeysExpired = errors.New("private keys have expired")
)
func NewPrivateKeyRotator(repo PrivateKeySetRepo, ttl time.Duration) *PrivateKeyRotator {
return &PrivateKeyRotator{
repo: repo,
ttl: ttl,
keep: 2,
generateKey: GeneratePrivateKey,
clock: clockwork.NewRealClock(),
}
}
type PrivateKeyRotator struct {
repo PrivateKeySetRepo
generateKey GeneratePrivateKeyFunc
clock clockwork.Clock
keep int
ttl time.Duration
}
func (r *PrivateKeyRotator) expiresAt() time.Time {
return r.clock.Now().UTC().Add(r.ttl)
}
func (r *PrivateKeyRotator) Healthy() error {
pks, err := r.privateKeySet()
if err != nil {
return err
}
if r.clock.Now().After(pks.ExpiresAt()) {
return ErrorPrivateKeysExpired
}
return nil
}
func (r *PrivateKeyRotator) privateKeySet() (*PrivateKeySet, error) {
ks, err := r.repo.Get()
if err != nil {
return nil, err
}
pks, ok := ks.(*PrivateKeySet)
if !ok {
return nil, errors.New("unable to cast to PrivateKeySet")
}
return pks, nil
}
func (r *PrivateKeyRotator) nextRotation() (time.Duration, error) {
pks, err := r.privateKeySet()
if err == ErrorNoKeys {
return 0, nil
}
if err != nil {
return 0, err
}
now := r.clock.Now()
// Ideally, we want to rotate after half the TTL has elapsed.
idealRotationTime := pks.ExpiresAt().Add(-r.ttl / 2)
// If we are past the ideal rotation time, rotate immediatly.
return max(0, idealRotationTime.Sub(now)), nil
}
func max(a, b time.Duration) time.Duration {
if a > b {
return a
}
return b
}
func (r *PrivateKeyRotator) Run() chan struct{} {
attempt := func() {
k, err := r.generateKey()
if err != nil {
log.Printf("go-oidc: failed generating signing key: %v", err)
return
}
exp := r.expiresAt()
if err := rotatePrivateKeys(r.repo, k, r.keep, exp); err != nil {
log.Printf("go-oidc: key rotation failed: %v", err)
return
}
}
stop := make(chan struct{})
go func() {
for {
var nextRotation time.Duration
var sleep time.Duration
var err error
for {
if nextRotation, err = r.nextRotation(); err == nil {
break
}
sleep = ptime.ExpBackoff(sleep, time.Minute)
log.Printf("go-oidc: error getting nextRotation, retrying in %v: %v", sleep, err)
time.Sleep(sleep)
}
select {
case <-r.clock.After(nextRotation):
attempt()
case <-stop:
return
}
}
}()
return stop
}
func rotatePrivateKeys(repo PrivateKeySetRepo, k *PrivateKey, keep int, exp time.Time) error {
ks, err := repo.Get()
if err != nil && err != ErrorNoKeys {
return err
}
var keys []*PrivateKey
if ks != nil {
pks, ok := ks.(*PrivateKeySet)
if !ok {
return errors.New("unable to cast to PrivateKeySet")
}
keys = pks.Keys()
}
keys = append([]*PrivateKey{k}, keys...)
if l := len(keys); l > keep {
keys = keys[0:keep]
}
nks := PrivateKeySet{
keys: keys,
ActiveKeyID: k.ID(),
expiresAt: exp,
}
return repo.Set(KeySet(&nks))
}

91
vendor/github.com/coreos/go-oidc/key/sync.go generated vendored Normal file
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package key
import (
"errors"
"log"
"time"
"github.com/jonboulle/clockwork"
"github.com/coreos/pkg/timeutil"
)
func NewKeySetSyncer(r ReadableKeySetRepo, w WritableKeySetRepo) *KeySetSyncer {
return &KeySetSyncer{
readable: r,
writable: w,
clock: clockwork.NewRealClock(),
}
}
type KeySetSyncer struct {
readable ReadableKeySetRepo
writable WritableKeySetRepo
clock clockwork.Clock
}
func (s *KeySetSyncer) Run() chan struct{} {
stop := make(chan struct{})
go func() {
var failing bool
var next time.Duration
for {
exp, err := syncKeySet(s.readable, s.writable, s.clock)
if err != nil || exp == 0 {
if !failing {
failing = true
next = time.Second
} else {
next = timeutil.ExpBackoff(next, time.Minute)
}
if exp == 0 {
log.Printf("Synced to already expired key set, retrying in %v: %v", next, err)
} else {
log.Printf("Failed syncing key set, retrying in %v: %v", next, err)
}
} else {
failing = false
next = exp / 2
}
select {
case <-s.clock.After(next):
continue
case <-stop:
return
}
}
}()
return stop
}
func Sync(r ReadableKeySetRepo, w WritableKeySetRepo) (time.Duration, error) {
return syncKeySet(r, w, clockwork.NewRealClock())
}
// syncKeySet copies the keyset from r to the KeySet at w and returns the duration in which the KeySet will expire.
// If keyset has already expired, returns a zero duration.
func syncKeySet(r ReadableKeySetRepo, w WritableKeySetRepo, clock clockwork.Clock) (exp time.Duration, err error) {
var ks KeySet
ks, err = r.Get()
if err != nil {
return
}
if ks == nil {
err = errors.New("no source KeySet")
return
}
if err = w.Set(ks); err != nil {
return
}
now := clock.Now()
if ks.ExpiresAt().After(now) {
exp = ks.ExpiresAt().Sub(now)
}
return
}

2
vendor/github.com/coreos/go-oidc/oauth2/doc.go generated vendored Normal file
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// Package oauth2 is DEPRECATED. Use golang.org/x/oauth instead.
package oauth2

29
vendor/github.com/coreos/go-oidc/oauth2/error.go generated vendored Normal file
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package oauth2
const (
ErrorAccessDenied = "access_denied"
ErrorInvalidClient = "invalid_client"
ErrorInvalidGrant = "invalid_grant"
ErrorInvalidRequest = "invalid_request"
ErrorServerError = "server_error"
ErrorUnauthorizedClient = "unauthorized_client"
ErrorUnsupportedGrantType = "unsupported_grant_type"
ErrorUnsupportedResponseType = "unsupported_response_type"
)
type Error struct {
Type string `json:"error"`
Description string `json:"error_description,omitempty"`
State string `json:"state,omitempty"`
}
func (e *Error) Error() string {
if e.Description != "" {
return e.Type + ": " + e.Description
}
return e.Type
}
func NewError(typ string) *Error {
return &Error{Type: typ}
}

416
vendor/github.com/coreos/go-oidc/oauth2/oauth2.go generated vendored Normal file
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package oauth2
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"mime"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
phttp "github.com/coreos/go-oidc/http"
)
// ResponseTypesEqual compares two response_type values. If either
// contains a space, it is treated as an unordered list. For example,
// comparing "code id_token" and "id_token code" would evaluate to true.
func ResponseTypesEqual(r1, r2 string) bool {
if !strings.Contains(r1, " ") || !strings.Contains(r2, " ") {
// fast route, no split needed
return r1 == r2
}
// split, sort, and compare
r1Fields := strings.Fields(r1)
r2Fields := strings.Fields(r2)
if len(r1Fields) != len(r2Fields) {
return false
}
sort.Strings(r1Fields)
sort.Strings(r2Fields)
for i, r1Field := range r1Fields {
if r1Field != r2Fields[i] {
return false
}
}
return true
}
const (
// OAuth2.0 response types registered by OIDC.
//
// See: https://openid.net/specs/oauth-v2-multiple-response-types-1_0.html#RegistryContents
ResponseTypeCode = "code"
ResponseTypeCodeIDToken = "code id_token"
ResponseTypeCodeIDTokenToken = "code id_token token"
ResponseTypeIDToken = "id_token"
ResponseTypeIDTokenToken = "id_token token"
ResponseTypeToken = "token"
ResponseTypeNone = "none"
)
const (
GrantTypeAuthCode = "authorization_code"
GrantTypeClientCreds = "client_credentials"
GrantTypeUserCreds = "password"
GrantTypeImplicit = "implicit"
GrantTypeRefreshToken = "refresh_token"
AuthMethodClientSecretPost = "client_secret_post"
AuthMethodClientSecretBasic = "client_secret_basic"
AuthMethodClientSecretJWT = "client_secret_jwt"
AuthMethodPrivateKeyJWT = "private_key_jwt"
)
type Config struct {
Credentials ClientCredentials
Scope []string
RedirectURL string
AuthURL string
TokenURL string
// Must be one of the AuthMethodXXX methods above. Right now, only
// AuthMethodClientSecretPost and AuthMethodClientSecretBasic are supported.
AuthMethod string
}
type Client struct {
hc phttp.Client
creds ClientCredentials
scope []string
authURL *url.URL
redirectURL *url.URL
tokenURL *url.URL
authMethod string
}
type ClientCredentials struct {
ID string
Secret string
}
func NewClient(hc phttp.Client, cfg Config) (c *Client, err error) {
if len(cfg.Credentials.ID) == 0 {
err = errors.New("missing client id")
return
}
if len(cfg.Credentials.Secret) == 0 {
err = errors.New("missing client secret")
return
}
if cfg.AuthMethod == "" {
cfg.AuthMethod = AuthMethodClientSecretBasic
} else if cfg.AuthMethod != AuthMethodClientSecretPost && cfg.AuthMethod != AuthMethodClientSecretBasic {
err = fmt.Errorf("auth method %q is not supported", cfg.AuthMethod)
return
}
au, err := phttp.ParseNonEmptyURL(cfg.AuthURL)
if err != nil {
return
}
tu, err := phttp.ParseNonEmptyURL(cfg.TokenURL)
if err != nil {
return
}
// Allow empty redirect URL in the case where the client
// only needs to verify a given token.
ru, err := url.Parse(cfg.RedirectURL)
if err != nil {
return
}
c = &Client{
creds: cfg.Credentials,
scope: cfg.Scope,
redirectURL: ru,
authURL: au,
tokenURL: tu,
hc: hc,
authMethod: cfg.AuthMethod,
}
return
}
// Return the embedded HTTP client
func (c *Client) HttpClient() phttp.Client {
return c.hc
}
// Generate the url for initial redirect to oauth provider.
func (c *Client) AuthCodeURL(state, accessType, prompt string) string {
v := c.commonURLValues()
v.Set("state", state)
if strings.ToLower(accessType) == "offline" {
v.Set("access_type", "offline")
}
if prompt != "" {
v.Set("prompt", prompt)
}
v.Set("response_type", "code")
q := v.Encode()
u := *c.authURL
if u.RawQuery == "" {
u.RawQuery = q
} else {
u.RawQuery += "&" + q
}
return u.String()
}
func (c *Client) commonURLValues() url.Values {
return url.Values{
"redirect_uri": {c.redirectURL.String()},
"scope": {strings.Join(c.scope, " ")},
"client_id": {c.creds.ID},
}
}
func (c *Client) newAuthenticatedRequest(urlToken string, values url.Values) (*http.Request, error) {
var req *http.Request
var err error
switch c.authMethod {
case AuthMethodClientSecretPost:
values.Set("client_secret", c.creds.Secret)
req, err = http.NewRequest("POST", urlToken, strings.NewReader(values.Encode()))
if err != nil {
return nil, err
}
case AuthMethodClientSecretBasic:
req, err = http.NewRequest("POST", urlToken, strings.NewReader(values.Encode()))
if err != nil {
return nil, err
}
encodedID := url.QueryEscape(c.creds.ID)
encodedSecret := url.QueryEscape(c.creds.Secret)
req.SetBasicAuth(encodedID, encodedSecret)
default:
panic("misconfigured client: auth method not supported")
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
return req, nil
}
// ClientCredsToken posts the client id and secret to obtain a token scoped to the OAuth2 client via the "client_credentials" grant type.
// May not be supported by all OAuth2 servers.
func (c *Client) ClientCredsToken(scope []string) (result TokenResponse, err error) {
v := url.Values{
"scope": {strings.Join(scope, " ")},
"grant_type": {GrantTypeClientCreds},
}
req, err := c.newAuthenticatedRequest(c.tokenURL.String(), v)
if err != nil {
return
}
resp, err := c.hc.Do(req)
if err != nil {
return
}
defer resp.Body.Close()
return parseTokenResponse(resp)
}
// UserCredsToken posts the username and password to obtain a token scoped to the OAuth2 client via the "password" grant_type
// May not be supported by all OAuth2 servers.
func (c *Client) UserCredsToken(username, password string) (result TokenResponse, err error) {
v := url.Values{
"scope": {strings.Join(c.scope, " ")},
"grant_type": {GrantTypeUserCreds},
"username": {username},
"password": {password},
}
req, err := c.newAuthenticatedRequest(c.tokenURL.String(), v)
if err != nil {
return
}
resp, err := c.hc.Do(req)
if err != nil {
return
}
defer resp.Body.Close()
return parseTokenResponse(resp)
}
// RequestToken requests a token from the Token Endpoint with the specified grantType.
// If 'grantType' == GrantTypeAuthCode, then 'value' should be the authorization code.
// If 'grantType' == GrantTypeRefreshToken, then 'value' should be the refresh token.
func (c *Client) RequestToken(grantType, value string) (result TokenResponse, err error) {
v := c.commonURLValues()
v.Set("grant_type", grantType)
v.Set("client_secret", c.creds.Secret)
switch grantType {
case GrantTypeAuthCode:
v.Set("code", value)
case GrantTypeRefreshToken:
v.Set("refresh_token", value)
default:
err = fmt.Errorf("unsupported grant_type: %v", grantType)
return
}
req, err := c.newAuthenticatedRequest(c.tokenURL.String(), v)
if err != nil {
return
}
resp, err := c.hc.Do(req)
if err != nil {
return
}
defer resp.Body.Close()
return parseTokenResponse(resp)
}
func parseTokenResponse(resp *http.Response) (result TokenResponse, err error) {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
badStatusCode := resp.StatusCode < 200 || resp.StatusCode > 299
contentType, _, err := mime.ParseMediaType(resp.Header.Get("Content-Type"))
if err != nil {
return
}
result = TokenResponse{
RawBody: body,
}
newError := func(typ, desc, state string) error {
if typ == "" {
return fmt.Errorf("unrecognized error %s", body)
}
return &Error{typ, desc, state}
}
if contentType == "application/x-www-form-urlencoded" || contentType == "text/plain" {
var vals url.Values
vals, err = url.ParseQuery(string(body))
if err != nil {
return
}
if error := vals.Get("error"); error != "" || badStatusCode {
err = newError(error, vals.Get("error_description"), vals.Get("state"))
return
}
e := vals.Get("expires_in")
if e == "" {
e = vals.Get("expires")
}
if e != "" {
result.Expires, err = strconv.Atoi(e)
if err != nil {
return
}
}
result.AccessToken = vals.Get("access_token")
result.TokenType = vals.Get("token_type")
result.IDToken = vals.Get("id_token")
result.RefreshToken = vals.Get("refresh_token")
result.Scope = vals.Get("scope")
} else {
var r struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type"`
IDToken string `json:"id_token"`
RefreshToken string `json:"refresh_token"`
Scope string `json:"scope"`
State string `json:"state"`
ExpiresIn json.Number `json:"expires_in"` // Azure AD returns string
Expires int `json:"expires"`
Error string `json:"error"`
Desc string `json:"error_description"`
}
if err = json.Unmarshal(body, &r); err != nil {
return
}
if r.Error != "" || badStatusCode {
err = newError(r.Error, r.Desc, r.State)
return
}
result.AccessToken = r.AccessToken
result.TokenType = r.TokenType
result.IDToken = r.IDToken
result.RefreshToken = r.RefreshToken
result.Scope = r.Scope
if expiresIn, err := r.ExpiresIn.Int64(); err != nil {
result.Expires = r.Expires
} else {
result.Expires = int(expiresIn)
}
}
return
}
type TokenResponse struct {
AccessToken string
TokenType string
Expires int
IDToken string
RefreshToken string // OPTIONAL.
Scope string // OPTIONAL, if identical to the scope requested by the client, otherwise, REQUIRED.
RawBody []byte // In case callers need some other non-standard info from the token response
}
type AuthCodeRequest struct {
ResponseType string
ClientID string
RedirectURL *url.URL
Scope []string
State string
}
func ParseAuthCodeRequest(q url.Values) (AuthCodeRequest, error) {
acr := AuthCodeRequest{
ResponseType: q.Get("response_type"),
ClientID: q.Get("client_id"),
State: q.Get("state"),
Scope: make([]string, 0),
}
qs := strings.TrimSpace(q.Get("scope"))
if qs != "" {
acr.Scope = strings.Split(qs, " ")
}
err := func() error {
if acr.ClientID == "" {
return NewError(ErrorInvalidRequest)
}
redirectURL := q.Get("redirect_uri")
if redirectURL != "" {
ru, err := url.Parse(redirectURL)
if err != nil {
return NewError(ErrorInvalidRequest)
}
acr.RedirectURL = ru
}
return nil
}()
return acr, err
}

299
vendor/github.com/coreos/go-oidc/oidc.go generated vendored Normal file
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// Package oidc implements OpenID Connect client logic for the golang.org/x/oauth2 package.
package oidc
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/net/context/ctxhttp"
"golang.org/x/oauth2"
jose "gopkg.in/square/go-jose.v2"
)
const (
// ScopeOpenID is the mandatory scope for all OpenID Connect OAuth2 requests.
ScopeOpenID = "openid"
// ScopeOfflineAccess is an optional scope defined by OpenID Connect for requesting
// OAuth2 refresh tokens.
//
// Support for this scope differs between OpenID Connect providers. For instance
// Google rejects it, favoring appending "access_type=offline" as part of the
// authorization request instead.
//
// See: https://openid.net/specs/openid-connect-core-1_0.html#OfflineAccess
ScopeOfflineAccess = "offline_access"
)
// ClientContext returns a new Context that carries the provided HTTP client.
//
// This method sets the same context key used by the golang.org/x/oauth2 package,
// so the returned context works for that package too.
//
// myClient := &http.Client{}
// ctx := oidc.ClientContext(parentContext, myClient)
//
// // This will use the custom client
// provider, err := oidc.NewProvider(ctx, "https://accounts.example.com")
//
func ClientContext(ctx context.Context, client *http.Client) context.Context {
return context.WithValue(ctx, oauth2.HTTPClient, client)
}
func clientFromContext(ctx context.Context) *http.Client {
if client, ok := ctx.Value(oauth2.HTTPClient).(*http.Client); ok {
return client
}
return http.DefaultClient
}
// Provider represents an OpenID Connect server's configuration.
type Provider struct {
issuer string
authURL string
tokenURL string
userInfoURL string
// Raw claims returned by the server.
rawClaims []byte
remoteKeySet *remoteKeySet
}
type cachedKeys struct {
keys []jose.JSONWebKey
expiry time.Time
}
type providerJSON struct {
Issuer string `json:"issuer"`
AuthURL string `json:"authorization_endpoint"`
TokenURL string `json:"token_endpoint"`
JWKSURL string `json:"jwks_uri"`
UserInfoURL string `json:"userinfo_endpoint"`
}
// NewProvider uses the OpenID Connect discovery mechanism to construct a Provider.
//
// The issuer is the URL identifier for the service. For example: "https://accounts.google.com"
// or "https://login.salesforce.com".
func NewProvider(ctx context.Context, issuer string) (*Provider, error) {
wellKnown := strings.TrimSuffix(issuer, "/") + "/.well-known/openid-configuration"
resp, err := ctxhttp.Get(ctx, clientFromContext(ctx), wellKnown)
if err != nil {
return nil, err
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("%s: %s", resp.Status, body)
}
defer resp.Body.Close()
var p providerJSON
if err := json.Unmarshal(body, &p); err != nil {
return nil, fmt.Errorf("oidc: failed to decode provider discovery object: %v", err)
}
if p.Issuer != issuer {
return nil, fmt.Errorf("oidc: issuer did not match the issuer returned by provider, expected %q got %q", issuer, p.Issuer)
}
return &Provider{
issuer: p.Issuer,
authURL: p.AuthURL,
tokenURL: p.TokenURL,
userInfoURL: p.UserInfoURL,
rawClaims: body,
remoteKeySet: newRemoteKeySet(ctx, p.JWKSURL, time.Now),
}, nil
}
// Claims unmarshals raw fields returned by the server during discovery.
//
// var claims struct {
// ScopesSupported []string `json:"scopes_supported"`
// ClaimsSupported []string `json:"claims_supported"`
// }
//
// if err := provider.Claims(&claims); err != nil {
// // handle unmarshaling error
// }
//
// For a list of fields defined by the OpenID Connect spec see:
// https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata
func (p *Provider) Claims(v interface{}) error {
if p.rawClaims == nil {
return errors.New("oidc: claims not set")
}
return json.Unmarshal(p.rawClaims, v)
}
// Endpoint returns the OAuth2 auth and token endpoints for the given provider.
func (p *Provider) Endpoint() oauth2.Endpoint {
return oauth2.Endpoint{AuthURL: p.authURL, TokenURL: p.tokenURL}
}
// UserInfo represents the OpenID Connect userinfo claims.
type UserInfo struct {
Subject string `json:"sub"`
Profile string `json:"profile"`
Email string `json:"email"`
EmailVerified bool `json:"email_verified"`
claims []byte
}
// Claims unmarshals the raw JSON object claims into the provided object.
func (u *UserInfo) Claims(v interface{}) error {
if u.claims == nil {
return errors.New("oidc: claims not set")
}
return json.Unmarshal(u.claims, v)
}
// UserInfo uses the token source to query the provider's user info endpoint.
func (p *Provider) UserInfo(ctx context.Context, tokenSource oauth2.TokenSource) (*UserInfo, error) {
if p.userInfoURL == "" {
return nil, errors.New("oidc: user info endpoint is not supported by this provider")
}
req, err := http.NewRequest("GET", p.userInfoURL, nil)
if err != nil {
return nil, fmt.Errorf("oidc: create GET request: %v", err)
}
token, err := tokenSource.Token()
if err != nil {
return nil, fmt.Errorf("oidc: get access token: %v", err)
}
token.SetAuthHeader(req)
resp, err := ctxhttp.Do(ctx, clientFromContext(ctx), req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("%s: %s", resp.Status, body)
}
var userInfo UserInfo
if err := json.Unmarshal(body, &userInfo); err != nil {
return nil, fmt.Errorf("oidc: failed to decode userinfo: %v", err)
}
userInfo.claims = body
return &userInfo, nil
}
// IDToken is an OpenID Connect extension that provides a predictable representation
// of an authorization event.
//
// The ID Token only holds fields OpenID Connect requires. To access additional
// claims returned by the server, use the Claims method.
type IDToken struct {
// The URL of the server which issued this token. This will always be the same
// as the URL used for initial discovery.
Issuer string
// The client, or set of clients, that this token is issued for.
Audience []string
// A unique string which identifies the end user.
Subject string
IssuedAt time.Time
Expiry time.Time
Nonce string
// Raw payload of the id_token.
claims []byte
}
// Claims unmarshals the raw JSON payload of the ID Token into a provided struct.
//
// idToken, err := idTokenVerifier.Verify(rawIDToken)
// if err != nil {
// // handle error
// }
// var claims struct {
// Email string `json:"email"`
// EmailVerified bool `json:"email_verified"`
// }
// if err := idToken.Claims(&claims); err != nil {
// // handle error
// }
//
func (i *IDToken) Claims(v interface{}) error {
if i.claims == nil {
return errors.New("oidc: claims not set")
}
return json.Unmarshal(i.claims, v)
}
type idToken struct {
Issuer string `json:"iss"`
Subject string `json:"sub"`
Audience audience `json:"aud"`
Expiry jsonTime `json:"exp"`
IssuedAt jsonTime `json:"iat"`
Nonce string `json:"nonce"`
}
type audience []string
func (a *audience) UnmarshalJSON(b []byte) error {
var s string
if json.Unmarshal(b, &s) == nil {
*a = audience{s}
return nil
}
var auds []string
if err := json.Unmarshal(b, &auds); err != nil {
return err
}
*a = audience(auds)
return nil
}
func (a audience) MarshalJSON() ([]byte, error) {
if len(a) == 1 {
return json.Marshal(a[0])
}
return json.Marshal([]string(a))
}
type jsonTime time.Time
func (j *jsonTime) UnmarshalJSON(b []byte) error {
var n json.Number
if err := json.Unmarshal(b, &n); err != nil {
return err
}
var unix int64
if t, err := n.Int64(); err == nil {
unix = t
} else {
f, err := n.Float64()
if err != nil {
return err
}
unix = int64(f)
}
*j = jsonTime(time.Unix(unix, 0))
return nil
}
func (j jsonTime) MarshalJSON() ([]byte, error) {
return json.Marshal(time.Time(j).Unix())
}

846
vendor/github.com/coreos/go-oidc/oidc/client.go generated vendored Normal file
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@ -0,0 +1,846 @@
package oidc
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"net/mail"
"net/url"
"sync"
"time"
phttp "github.com/coreos/go-oidc/http"
"github.com/coreos/go-oidc/jose"
"github.com/coreos/go-oidc/key"
"github.com/coreos/go-oidc/oauth2"
)
const (
// amount of time that must pass after the last key sync
// completes before another attempt may begin
keySyncWindow = 5 * time.Second
)
var (
DefaultScope = []string{"openid", "email", "profile"}
supportedAuthMethods = map[string]struct{}{
oauth2.AuthMethodClientSecretBasic: struct{}{},
oauth2.AuthMethodClientSecretPost: struct{}{},
}
)
type ClientCredentials oauth2.ClientCredentials
type ClientIdentity struct {
Credentials ClientCredentials
Metadata ClientMetadata
}
type JWAOptions struct {
// SigningAlg specifies an JWA alg for signing JWTs.
//
// Specifying this field implies different actions depending on the context. It may
// require objects be serialized and signed as a JWT instead of plain JSON, or
// require an existing JWT object use the specified alg.
//
// See: http://openid.net/specs/openid-connect-registration-1_0.html#ClientMetadata
SigningAlg string
// EncryptionAlg, if provided, specifies that the returned or sent object be stored
// (or nested) within a JWT object and encrypted with the provided JWA alg.
EncryptionAlg string
// EncryptionEnc specifies the JWA enc algorithm to use with EncryptionAlg. If
// EncryptionAlg is provided and EncryptionEnc is omitted, this field defaults
// to A128CBC-HS256.
//
// If EncryptionEnc is provided EncryptionAlg must also be specified.
EncryptionEnc string
}
func (opt JWAOptions) valid() error {
if opt.EncryptionEnc != "" && opt.EncryptionAlg == "" {
return errors.New("encryption encoding provided with no encryption algorithm")
}
return nil
}
func (opt JWAOptions) defaults() JWAOptions {
if opt.EncryptionAlg != "" && opt.EncryptionEnc == "" {
opt.EncryptionEnc = jose.EncA128CBCHS256
}
return opt
}
var (
// Ensure ClientMetadata satisfies these interfaces.
_ json.Marshaler = &ClientMetadata{}
_ json.Unmarshaler = &ClientMetadata{}
)
// ClientMetadata holds metadata that the authorization server associates
// with a client identifier. The fields range from human-facing display
// strings such as client name, to items that impact the security of the
// protocol, such as the list of valid redirect URIs.
//
// See http://openid.net/specs/openid-connect-registration-1_0.html#ClientMetadata
//
// TODO: support language specific claim representations
// http://openid.net/specs/openid-connect-registration-1_0.html#LanguagesAndScripts
type ClientMetadata struct {
RedirectURIs []url.URL // Required
// A list of OAuth 2.0 "response_type" values that the client wishes to restrict
// itself to. Either "code", "token", or another registered extension.
//
// If omitted, only "code" will be used.
ResponseTypes []string
// A list of OAuth 2.0 grant types the client wishes to restrict itself to.
// The grant type values used by OIDC are "authorization_code", "implicit",
// and "refresh_token".
//
// If ommitted, only "authorization_code" will be used.
GrantTypes []string
// "native" or "web". If omitted, "web".
ApplicationType string
// List of email addresses.
Contacts []mail.Address
// Name of client to be presented to the end-user.
ClientName string
// URL that references a logo for the Client application.
LogoURI *url.URL
// URL of the home page of the Client.
ClientURI *url.URL
// Profile data policies and terms of use to be provided to the end user.
PolicyURI *url.URL
TermsOfServiceURI *url.URL
// URL to or the value of the client's JSON Web Key Set document.
JWKSURI *url.URL
JWKS *jose.JWKSet
// URL referencing a flie with a single JSON array of redirect URIs.
SectorIdentifierURI *url.URL
SubjectType string
// Options to restrict the JWS alg and enc values used for server responses and requests.
IDTokenResponseOptions JWAOptions
UserInfoResponseOptions JWAOptions
RequestObjectOptions JWAOptions
// Client requested authorization method and signing options for the token endpoint.
//
// Defaults to "client_secret_basic"
TokenEndpointAuthMethod string
TokenEndpointAuthSigningAlg string
// DefaultMaxAge specifies the maximum amount of time in seconds before an authorized
// user must reauthroize.
//
// If 0, no limitation is placed on the maximum.
DefaultMaxAge int64
// RequireAuthTime specifies if the auth_time claim in the ID token is required.
RequireAuthTime bool
// Default Authentication Context Class Reference values for authentication requests.
DefaultACRValues []string
// URI that a third party can use to initiate a login by the relaying party.
//
// See: http://openid.net/specs/openid-connect-core-1_0.html#ThirdPartyInitiatedLogin
InitiateLoginURI *url.URL
// Pre-registered request_uri values that may be cached by the server.
RequestURIs []url.URL
}
// Defaults returns a shallow copy of ClientMetadata with default
// values replacing omitted fields.
func (m ClientMetadata) Defaults() ClientMetadata {
if len(m.ResponseTypes) == 0 {
m.ResponseTypes = []string{oauth2.ResponseTypeCode}
}
if len(m.GrantTypes) == 0 {
m.GrantTypes = []string{oauth2.GrantTypeAuthCode}
}
if m.ApplicationType == "" {
m.ApplicationType = "web"
}
if m.TokenEndpointAuthMethod == "" {
m.TokenEndpointAuthMethod = oauth2.AuthMethodClientSecretBasic
}
m.IDTokenResponseOptions = m.IDTokenResponseOptions.defaults()
m.UserInfoResponseOptions = m.UserInfoResponseOptions.defaults()
m.RequestObjectOptions = m.RequestObjectOptions.defaults()
return m
}
func (m *ClientMetadata) MarshalJSON() ([]byte, error) {
e := m.toEncodableStruct()
return json.Marshal(&e)
}
func (m *ClientMetadata) UnmarshalJSON(data []byte) error {
var e encodableClientMetadata
if err := json.Unmarshal(data, &e); err != nil {
return err
}
meta, err := e.toStruct()
if err != nil {
return err
}
if err := meta.Valid(); err != nil {
return err
}
*m = meta
return nil
}
type encodableClientMetadata struct {
RedirectURIs []string `json:"redirect_uris"` // Required
ResponseTypes []string `json:"response_types,omitempty"`
GrantTypes []string `json:"grant_types,omitempty"`
ApplicationType string `json:"application_type,omitempty"`
Contacts []string `json:"contacts,omitempty"`
ClientName string `json:"client_name,omitempty"`
LogoURI string `json:"logo_uri,omitempty"`
ClientURI string `json:"client_uri,omitempty"`
PolicyURI string `json:"policy_uri,omitempty"`
TermsOfServiceURI string `json:"tos_uri,omitempty"`
JWKSURI string `json:"jwks_uri,omitempty"`
JWKS *jose.JWKSet `json:"jwks,omitempty"`
SectorIdentifierURI string `json:"sector_identifier_uri,omitempty"`
SubjectType string `json:"subject_type,omitempty"`
IDTokenSignedResponseAlg string `json:"id_token_signed_response_alg,omitempty"`
IDTokenEncryptedResponseAlg string `json:"id_token_encrypted_response_alg,omitempty"`
IDTokenEncryptedResponseEnc string `json:"id_token_encrypted_response_enc,omitempty"`
UserInfoSignedResponseAlg string `json:"userinfo_signed_response_alg,omitempty"`
UserInfoEncryptedResponseAlg string `json:"userinfo_encrypted_response_alg,omitempty"`
UserInfoEncryptedResponseEnc string `json:"userinfo_encrypted_response_enc,omitempty"`
RequestObjectSigningAlg string `json:"request_object_signing_alg,omitempty"`
RequestObjectEncryptionAlg string `json:"request_object_encryption_alg,omitempty"`
RequestObjectEncryptionEnc string `json:"request_object_encryption_enc,omitempty"`
TokenEndpointAuthMethod string `json:"token_endpoint_auth_method,omitempty"`
TokenEndpointAuthSigningAlg string `json:"token_endpoint_auth_signing_alg,omitempty"`
DefaultMaxAge int64 `json:"default_max_age,omitempty"`
RequireAuthTime bool `json:"require_auth_time,omitempty"`
DefaultACRValues []string `json:"default_acr_values,omitempty"`
InitiateLoginURI string `json:"initiate_login_uri,omitempty"`
RequestURIs []string `json:"request_uris,omitempty"`
}
func (c *encodableClientMetadata) toStruct() (ClientMetadata, error) {
p := stickyErrParser{}
m := ClientMetadata{
RedirectURIs: p.parseURIs(c.RedirectURIs, "redirect_uris"),
ResponseTypes: c.ResponseTypes,
GrantTypes: c.GrantTypes,
ApplicationType: c.ApplicationType,
Contacts: p.parseEmails(c.Contacts, "contacts"),
ClientName: c.ClientName,
LogoURI: p.parseURI(c.LogoURI, "logo_uri"),
ClientURI: p.parseURI(c.ClientURI, "client_uri"),
PolicyURI: p.parseURI(c.PolicyURI, "policy_uri"),
TermsOfServiceURI: p.parseURI(c.TermsOfServiceURI, "tos_uri"),
JWKSURI: p.parseURI(c.JWKSURI, "jwks_uri"),
JWKS: c.JWKS,
SectorIdentifierURI: p.parseURI(c.SectorIdentifierURI, "sector_identifier_uri"),
SubjectType: c.SubjectType,
TokenEndpointAuthMethod: c.TokenEndpointAuthMethod,
TokenEndpointAuthSigningAlg: c.TokenEndpointAuthSigningAlg,
DefaultMaxAge: c.DefaultMaxAge,
RequireAuthTime: c.RequireAuthTime,
DefaultACRValues: c.DefaultACRValues,
InitiateLoginURI: p.parseURI(c.InitiateLoginURI, "initiate_login_uri"),
RequestURIs: p.parseURIs(c.RequestURIs, "request_uris"),
IDTokenResponseOptions: JWAOptions{
c.IDTokenSignedResponseAlg,
c.IDTokenEncryptedResponseAlg,
c.IDTokenEncryptedResponseEnc,
},
UserInfoResponseOptions: JWAOptions{
c.UserInfoSignedResponseAlg,
c.UserInfoEncryptedResponseAlg,
c.UserInfoEncryptedResponseEnc,
},
RequestObjectOptions: JWAOptions{
c.RequestObjectSigningAlg,
c.RequestObjectEncryptionAlg,
c.RequestObjectEncryptionEnc,
},
}
if p.firstErr != nil {
return ClientMetadata{}, p.firstErr
}
return m, nil
}
// stickyErrParser parses URIs and email addresses. Once it encounters
// a parse error, subsequent calls become no-op.
type stickyErrParser struct {
firstErr error
}
func (p *stickyErrParser) parseURI(s, field string) *url.URL {
if p.firstErr != nil || s == "" {
return nil
}
u, err := url.Parse(s)
if err == nil {
if u.Host == "" {
err = errors.New("no host in URI")
} else if u.Scheme != "http" && u.Scheme != "https" {
err = errors.New("invalid URI scheme")
}
}
if err != nil {
p.firstErr = fmt.Errorf("failed to parse %s: %v", field, err)
return nil
}
return u
}
func (p *stickyErrParser) parseURIs(s []string, field string) []url.URL {
if p.firstErr != nil || len(s) == 0 {
return nil
}
uris := make([]url.URL, len(s))
for i, val := range s {
if val == "" {
p.firstErr = fmt.Errorf("invalid URI in field %s", field)
return nil
}
if u := p.parseURI(val, field); u != nil {
uris[i] = *u
}
}
return uris
}
func (p *stickyErrParser) parseEmails(s []string, field string) []mail.Address {
if p.firstErr != nil || len(s) == 0 {
return nil
}
addrs := make([]mail.Address, len(s))
for i, addr := range s {
if addr == "" {
p.firstErr = fmt.Errorf("invalid email in field %s", field)
return nil
}
a, err := mail.ParseAddress(addr)
if err != nil {
p.firstErr = fmt.Errorf("invalid email in field %s: %v", field, err)
return nil
}
addrs[i] = *a
}
return addrs
}
func (m *ClientMetadata) toEncodableStruct() encodableClientMetadata {
return encodableClientMetadata{
RedirectURIs: urisToStrings(m.RedirectURIs),
ResponseTypes: m.ResponseTypes,
GrantTypes: m.GrantTypes,
ApplicationType: m.ApplicationType,
Contacts: emailsToStrings(m.Contacts),
ClientName: m.ClientName,
LogoURI: uriToString(m.LogoURI),
ClientURI: uriToString(m.ClientURI),
PolicyURI: uriToString(m.PolicyURI),
TermsOfServiceURI: uriToString(m.TermsOfServiceURI),
JWKSURI: uriToString(m.JWKSURI),
JWKS: m.JWKS,
SectorIdentifierURI: uriToString(m.SectorIdentifierURI),
SubjectType: m.SubjectType,
IDTokenSignedResponseAlg: m.IDTokenResponseOptions.SigningAlg,
IDTokenEncryptedResponseAlg: m.IDTokenResponseOptions.EncryptionAlg,
IDTokenEncryptedResponseEnc: m.IDTokenResponseOptions.EncryptionEnc,
UserInfoSignedResponseAlg: m.UserInfoResponseOptions.SigningAlg,
UserInfoEncryptedResponseAlg: m.UserInfoResponseOptions.EncryptionAlg,
UserInfoEncryptedResponseEnc: m.UserInfoResponseOptions.EncryptionEnc,
RequestObjectSigningAlg: m.RequestObjectOptions.SigningAlg,
RequestObjectEncryptionAlg: m.RequestObjectOptions.EncryptionAlg,
RequestObjectEncryptionEnc: m.RequestObjectOptions.EncryptionEnc,
TokenEndpointAuthMethod: m.TokenEndpointAuthMethod,
TokenEndpointAuthSigningAlg: m.TokenEndpointAuthSigningAlg,
DefaultMaxAge: m.DefaultMaxAge,
RequireAuthTime: m.RequireAuthTime,
DefaultACRValues: m.DefaultACRValues,
InitiateLoginURI: uriToString(m.InitiateLoginURI),
RequestURIs: urisToStrings(m.RequestURIs),
}
}
func uriToString(u *url.URL) string {
if u == nil {
return ""
}
return u.String()
}
func urisToStrings(urls []url.URL) []string {
if len(urls) == 0 {
return nil
}
sli := make([]string, len(urls))
for i, u := range urls {
sli[i] = u.String()
}
return sli
}
func emailsToStrings(addrs []mail.Address) []string {
if len(addrs) == 0 {
return nil
}
sli := make([]string, len(addrs))
for i, addr := range addrs {
sli[i] = addr.String()
}
return sli
}
// Valid determines if a ClientMetadata conforms with the OIDC specification.
//
// Valid is called by UnmarshalJSON.
//
// NOTE(ericchiang): For development purposes Valid does not mandate 'https' for
// URLs fields where the OIDC spec requires it. This may change in future releases
// of this package. See: https://github.com/coreos/go-oidc/issues/34
func (m *ClientMetadata) Valid() error {
if len(m.RedirectURIs) == 0 {
return errors.New("zero redirect URLs")
}
validURI := func(u *url.URL, fieldName string) error {
if u.Host == "" {
return fmt.Errorf("no host for uri field %s", fieldName)
}
if u.Scheme != "http" && u.Scheme != "https" {
return fmt.Errorf("uri field %s scheme is not http or https", fieldName)
}
return nil
}
uris := []struct {
val *url.URL
name string
}{
{m.LogoURI, "logo_uri"},
{m.ClientURI, "client_uri"},
{m.PolicyURI, "policy_uri"},
{m.TermsOfServiceURI, "tos_uri"},
{m.JWKSURI, "jwks_uri"},
{m.SectorIdentifierURI, "sector_identifier_uri"},
{m.InitiateLoginURI, "initiate_login_uri"},
}
for _, uri := range uris {
if uri.val == nil {
continue
}
if err := validURI(uri.val, uri.name); err != nil {
return err
}
}
uriLists := []struct {
vals []url.URL
name string
}{
{m.RedirectURIs, "redirect_uris"},
{m.RequestURIs, "request_uris"},
}
for _, list := range uriLists {
for _, uri := range list.vals {
if err := validURI(&uri, list.name); err != nil {
return err
}
}
}
options := []struct {
option JWAOptions
name string
}{
{m.IDTokenResponseOptions, "id_token response"},
{m.UserInfoResponseOptions, "userinfo response"},
{m.RequestObjectOptions, "request_object"},
}
for _, option := range options {
if err := option.option.valid(); err != nil {
return fmt.Errorf("invalid JWA values for %s: %v", option.name, err)
}
}
return nil
}
type ClientRegistrationResponse struct {
ClientID string // Required
ClientSecret string
RegistrationAccessToken string
RegistrationClientURI string
// If IsZero is true, unspecified.
ClientIDIssuedAt time.Time
// Time at which the client_secret will expire.
// If IsZero is true, it will not expire.
ClientSecretExpiresAt time.Time
ClientMetadata
}
type encodableClientRegistrationResponse struct {
ClientID string `json:"client_id"` // Required
ClientSecret string `json:"client_secret,omitempty"`
RegistrationAccessToken string `json:"registration_access_token,omitempty"`
RegistrationClientURI string `json:"registration_client_uri,omitempty"`
ClientIDIssuedAt int64 `json:"client_id_issued_at,omitempty"`
// Time at which the client_secret will expire, in seconds since the epoch.
// If 0 it will not expire.
ClientSecretExpiresAt int64 `json:"client_secret_expires_at"` // Required
encodableClientMetadata
}
func unixToSec(t time.Time) int64 {
if t.IsZero() {
return 0
}
return t.Unix()
}
func (c *ClientRegistrationResponse) MarshalJSON() ([]byte, error) {
e := encodableClientRegistrationResponse{
ClientID: c.ClientID,
ClientSecret: c.ClientSecret,
RegistrationAccessToken: c.RegistrationAccessToken,
RegistrationClientURI: c.RegistrationClientURI,
ClientIDIssuedAt: unixToSec(c.ClientIDIssuedAt),
ClientSecretExpiresAt: unixToSec(c.ClientSecretExpiresAt),
encodableClientMetadata: c.ClientMetadata.toEncodableStruct(),
}
return json.Marshal(&e)
}
func secToUnix(sec int64) time.Time {
if sec == 0 {
return time.Time{}
}
return time.Unix(sec, 0)
}
func (c *ClientRegistrationResponse) UnmarshalJSON(data []byte) error {
var e encodableClientRegistrationResponse
if err := json.Unmarshal(data, &e); err != nil {
return err
}
if e.ClientID == "" {
return errors.New("no client_id in client registration response")
}
metadata, err := e.encodableClientMetadata.toStruct()
if err != nil {
return err
}
*c = ClientRegistrationResponse{
ClientID: e.ClientID,
ClientSecret: e.ClientSecret,
RegistrationAccessToken: e.RegistrationAccessToken,
RegistrationClientURI: e.RegistrationClientURI,
ClientIDIssuedAt: secToUnix(e.ClientIDIssuedAt),
ClientSecretExpiresAt: secToUnix(e.ClientSecretExpiresAt),
ClientMetadata: metadata,
}
return nil
}
type ClientConfig struct {
HTTPClient phttp.Client
Credentials ClientCredentials
Scope []string
RedirectURL string
ProviderConfig ProviderConfig
KeySet key.PublicKeySet
}
func NewClient(cfg ClientConfig) (*Client, error) {
// Allow empty redirect URL in the case where the client
// only needs to verify a given token.
ru, err := url.Parse(cfg.RedirectURL)
if err != nil {
return nil, fmt.Errorf("invalid redirect URL: %v", err)
}
c := Client{
credentials: cfg.Credentials,
httpClient: cfg.HTTPClient,
scope: cfg.Scope,
redirectURL: ru.String(),
providerConfig: newProviderConfigRepo(cfg.ProviderConfig),
keySet: cfg.KeySet,
}
if c.httpClient == nil {
c.httpClient = http.DefaultClient
}
if c.scope == nil {
c.scope = make([]string, len(DefaultScope))
copy(c.scope, DefaultScope)
}
return &c, nil
}
type Client struct {
httpClient phttp.Client
providerConfig *providerConfigRepo
credentials ClientCredentials
redirectURL string
scope []string
keySet key.PublicKeySet
providerSyncer *ProviderConfigSyncer
keySetSyncMutex sync.RWMutex
lastKeySetSync time.Time
}
func (c *Client) Healthy() error {
now := time.Now().UTC()
cfg := c.providerConfig.Get()
if cfg.Empty() {
return errors.New("oidc client provider config empty")
}
if !cfg.ExpiresAt.IsZero() && cfg.ExpiresAt.Before(now) {
return errors.New("oidc client provider config expired")
}
return nil
}
func (c *Client) OAuthClient() (*oauth2.Client, error) {
cfg := c.providerConfig.Get()
authMethod, err := chooseAuthMethod(cfg)
if err != nil {
return nil, err
}
ocfg := oauth2.Config{
Credentials: oauth2.ClientCredentials(c.credentials),
RedirectURL: c.redirectURL,
AuthURL: cfg.AuthEndpoint.String(),
TokenURL: cfg.TokenEndpoint.String(),
Scope: c.scope,
AuthMethod: authMethod,
}
return oauth2.NewClient(c.httpClient, ocfg)
}
func chooseAuthMethod(cfg ProviderConfig) (string, error) {
if len(cfg.TokenEndpointAuthMethodsSupported) == 0 {
return oauth2.AuthMethodClientSecretBasic, nil
}
for _, authMethod := range cfg.TokenEndpointAuthMethodsSupported {
if _, ok := supportedAuthMethods[authMethod]; ok {
return authMethod, nil
}
}
return "", errors.New("no supported auth methods")
}
// SyncProviderConfig starts the provider config syncer
func (c *Client) SyncProviderConfig(discoveryURL string) chan struct{} {
r := NewHTTPProviderConfigGetter(c.httpClient, discoveryURL)
s := NewProviderConfigSyncer(r, c.providerConfig)
stop := s.Run()
s.WaitUntilInitialSync()
return stop
}
func (c *Client) maybeSyncKeys() error {
tooSoon := func() bool {
return time.Now().UTC().Before(c.lastKeySetSync.Add(keySyncWindow))
}
// ignore request to sync keys if a sync operation has been
// attempted too recently
if tooSoon() {
return nil
}
c.keySetSyncMutex.Lock()
defer c.keySetSyncMutex.Unlock()
// check again, as another goroutine may have been holding
// the lock while updating the keys
if tooSoon() {
return nil
}
cfg := c.providerConfig.Get()
r := NewRemotePublicKeyRepo(c.httpClient, cfg.KeysEndpoint.String())
w := &clientKeyRepo{client: c}
_, err := key.Sync(r, w)
c.lastKeySetSync = time.Now().UTC()
return err
}
type clientKeyRepo struct {
client *Client
}
func (r *clientKeyRepo) Set(ks key.KeySet) error {
pks, ok := ks.(*key.PublicKeySet)
if !ok {
return errors.New("unable to cast to PublicKey")
}
r.client.keySet = *pks
return nil
}
func (c *Client) ClientCredsToken(scope []string) (jose.JWT, error) {
cfg := c.providerConfig.Get()
if !cfg.SupportsGrantType(oauth2.GrantTypeClientCreds) {
return jose.JWT{}, fmt.Errorf("%v grant type is not supported", oauth2.GrantTypeClientCreds)
}
oac, err := c.OAuthClient()
if err != nil {
return jose.JWT{}, err
}
t, err := oac.ClientCredsToken(scope)
if err != nil {
return jose.JWT{}, err
}
jwt, err := jose.ParseJWT(t.IDToken)
if err != nil {
return jose.JWT{}, err
}
return jwt, c.VerifyJWT(jwt)
}
// ExchangeAuthCode exchanges an OAuth2 auth code for an OIDC JWT ID token.
func (c *Client) ExchangeAuthCode(code string) (jose.JWT, error) {
oac, err := c.OAuthClient()
if err != nil {
return jose.JWT{}, err
}
t, err := oac.RequestToken(oauth2.GrantTypeAuthCode, code)
if err != nil {
return jose.JWT{}, err
}
jwt, err := jose.ParseJWT(t.IDToken)
if err != nil {
return jose.JWT{}, err
}
return jwt, c.VerifyJWT(jwt)
}
// RefreshToken uses a refresh token to exchange for a new OIDC JWT ID Token.
func (c *Client) RefreshToken(refreshToken string) (jose.JWT, error) {
oac, err := c.OAuthClient()
if err != nil {
return jose.JWT{}, err
}
t, err := oac.RequestToken(oauth2.GrantTypeRefreshToken, refreshToken)
if err != nil {
return jose.JWT{}, err
}
jwt, err := jose.ParseJWT(t.IDToken)
if err != nil {
return jose.JWT{}, err
}
return jwt, c.VerifyJWT(jwt)
}
func (c *Client) VerifyJWT(jwt jose.JWT) error {
var keysFunc func() []key.PublicKey
if kID, ok := jwt.KeyID(); ok {
keysFunc = c.keysFuncWithID(kID)
} else {
keysFunc = c.keysFuncAll()
}
v := NewJWTVerifier(
c.providerConfig.Get().Issuer.String(),
c.credentials.ID,
c.maybeSyncKeys, keysFunc)
return v.Verify(jwt)
}
// keysFuncWithID returns a function that retrieves at most unexpired
// public key from the Client that matches the provided ID
func (c *Client) keysFuncWithID(kID string) func() []key.PublicKey {
return func() []key.PublicKey {
c.keySetSyncMutex.RLock()
defer c.keySetSyncMutex.RUnlock()
if c.keySet.ExpiresAt().Before(time.Now()) {
return []key.PublicKey{}
}
k := c.keySet.Key(kID)
if k == nil {
return []key.PublicKey{}
}
return []key.PublicKey{*k}
}
}
// keysFuncAll returns a function that retrieves all unexpired public
// keys from the Client
func (c *Client) keysFuncAll() func() []key.PublicKey {
return func() []key.PublicKey {
c.keySetSyncMutex.RLock()
defer c.keySetSyncMutex.RUnlock()
if c.keySet.ExpiresAt().Before(time.Now()) {
return []key.PublicKey{}
}
return c.keySet.Keys()
}
}
type providerConfigRepo struct {
mu sync.RWMutex
config ProviderConfig // do not access directly, use Get()
}
func newProviderConfigRepo(pc ProviderConfig) *providerConfigRepo {
return &providerConfigRepo{sync.RWMutex{}, pc}
}
// returns an error to implement ProviderConfigSetter
func (r *providerConfigRepo) Set(cfg ProviderConfig) error {
r.mu.Lock()
defer r.mu.Unlock()
r.config = cfg
return nil
}
func (r *providerConfigRepo) Get() ProviderConfig {
r.mu.RLock()
defer r.mu.RUnlock()
return r.config
}

2
vendor/github.com/coreos/go-oidc/oidc/doc.go generated vendored Normal file
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@ -0,0 +1,2 @@
// Package oidc is DEPRECATED. Use github.com/coreos/go-oidc instead.
package oidc

44
vendor/github.com/coreos/go-oidc/oidc/identity.go generated vendored Normal file
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@ -0,0 +1,44 @@
package oidc
import (
"errors"
"time"
"github.com/coreos/go-oidc/jose"
)
type Identity struct {
ID string
Name string
Email string
ExpiresAt time.Time
}
func IdentityFromClaims(claims jose.Claims) (*Identity, error) {
if claims == nil {
return nil, errors.New("nil claim set")
}
var ident Identity
var err error
var ok bool
if ident.ID, ok, err = claims.StringClaim("sub"); err != nil {
return nil, err
} else if !ok {
return nil, errors.New("missing required claim: sub")
}
if ident.Email, _, err = claims.StringClaim("email"); err != nil {
return nil, err
}
exp, ok, err := claims.TimeClaim("exp")
if err != nil {
return nil, err
} else if ok {
ident.ExpiresAt = exp
}
return &ident, nil
}

3
vendor/github.com/coreos/go-oidc/oidc/interface.go generated vendored Normal file
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@ -0,0 +1,3 @@
package oidc
type LoginFunc func(ident Identity, sessionKey string) (redirectURL string, err error)

67
vendor/github.com/coreos/go-oidc/oidc/key.go generated vendored Executable file
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@ -0,0 +1,67 @@
package oidc
import (
"encoding/json"
"errors"
"net/http"
"time"
phttp "github.com/coreos/go-oidc/http"
"github.com/coreos/go-oidc/jose"
"github.com/coreos/go-oidc/key"
)
// DefaultPublicKeySetTTL is the default TTL set on the PublicKeySet if no
// Cache-Control header is provided by the JWK Set document endpoint.
const DefaultPublicKeySetTTL = 24 * time.Hour
// NewRemotePublicKeyRepo is responsible for fetching the JWK Set document.
func NewRemotePublicKeyRepo(hc phttp.Client, ep string) *remotePublicKeyRepo {
return &remotePublicKeyRepo{hc: hc, ep: ep}
}
type remotePublicKeyRepo struct {
hc phttp.Client
ep string
}
// Get returns a PublicKeySet fetched from the JWK Set document endpoint. A TTL
// is set on the Key Set to avoid it having to be re-retrieved for every
// encryption event. This TTL is typically controlled by the endpoint returning
// a Cache-Control header, but defaults to 24 hours if no Cache-Control header
// is found.
func (r *remotePublicKeyRepo) Get() (key.KeySet, error) {
req, err := http.NewRequest("GET", r.ep, nil)
if err != nil {
return nil, err
}
resp, err := r.hc.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var d struct {
Keys []jose.JWK `json:"keys"`
}
if err := json.NewDecoder(resp.Body).Decode(&d); err != nil {
return nil, err
}
if len(d.Keys) == 0 {
return nil, errors.New("zero keys in response")
}
ttl, ok, err := phttp.Cacheable(resp.Header)
if err != nil {
return nil, err
}
if !ok {
ttl = DefaultPublicKeySetTTL
}
exp := time.Now().UTC().Add(ttl)
ks := key.NewPublicKeySet(d.Keys, exp)
return ks, nil
}

690
vendor/github.com/coreos/go-oidc/oidc/provider.go generated vendored Normal file
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@ -0,0 +1,690 @@
package oidc
import (
"encoding/json"
"errors"
"fmt"
"log"
"net/http"
"net/url"
"strings"
"sync"
"time"
"github.com/coreos/pkg/timeutil"
"github.com/jonboulle/clockwork"
phttp "github.com/coreos/go-oidc/http"
"github.com/coreos/go-oidc/oauth2"
)
const (
// Subject Identifier types defined by the OIDC spec. Specifies if the provider
// should provide the same sub claim value to all clients (public) or a unique
// value for each client (pairwise).
//
// See: http://openid.net/specs/openid-connect-core-1_0.html#SubjectIDTypes
SubjectTypePublic = "public"
SubjectTypePairwise = "pairwise"
)
var (
// Default values for omitted provider config fields.
//
// Use ProviderConfig's Defaults method to fill a provider config with these values.
DefaultGrantTypesSupported = []string{oauth2.GrantTypeAuthCode, oauth2.GrantTypeImplicit}
DefaultResponseModesSupported = []string{"query", "fragment"}
DefaultTokenEndpointAuthMethodsSupported = []string{oauth2.AuthMethodClientSecretBasic}
DefaultClaimTypesSupported = []string{"normal"}
)
const (
MaximumProviderConfigSyncInterval = 24 * time.Hour
MinimumProviderConfigSyncInterval = time.Minute
discoveryConfigPath = "/.well-known/openid-configuration"
)
// internally configurable for tests
var minimumProviderConfigSyncInterval = MinimumProviderConfigSyncInterval
var (
// Ensure ProviderConfig satisfies these interfaces.
_ json.Marshaler = &ProviderConfig{}
_ json.Unmarshaler = &ProviderConfig{}
)
// ProviderConfig represents the OpenID Provider Metadata specifying what
// configurations a provider supports.
//
// See: http://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata
type ProviderConfig struct {
Issuer *url.URL // Required
AuthEndpoint *url.URL // Required
TokenEndpoint *url.URL // Required if grant types other than "implicit" are supported
UserInfoEndpoint *url.URL
KeysEndpoint *url.URL // Required
RegistrationEndpoint *url.URL
EndSessionEndpoint *url.URL
CheckSessionIFrame *url.URL
// Servers MAY choose not to advertise some supported scope values even when this
// parameter is used, although those defined in OpenID Core SHOULD be listed, if supported.
ScopesSupported []string
// OAuth2.0 response types supported.
ResponseTypesSupported []string // Required
// OAuth2.0 response modes supported.
//
// If omitted, defaults to DefaultResponseModesSupported.
ResponseModesSupported []string
// OAuth2.0 grant types supported.
//
// If omitted, defaults to DefaultGrantTypesSupported.
GrantTypesSupported []string
ACRValuesSupported []string
// SubjectTypesSupported specifies strategies for providing values for the sub claim.
SubjectTypesSupported []string // Required
// JWA signing and encryption algorith values supported for ID tokens.
IDTokenSigningAlgValues []string // Required
IDTokenEncryptionAlgValues []string
IDTokenEncryptionEncValues []string
// JWA signing and encryption algorith values supported for user info responses.
UserInfoSigningAlgValues []string
UserInfoEncryptionAlgValues []string
UserInfoEncryptionEncValues []string
// JWA signing and encryption algorith values supported for request objects.
ReqObjSigningAlgValues []string
ReqObjEncryptionAlgValues []string
ReqObjEncryptionEncValues []string
TokenEndpointAuthMethodsSupported []string
TokenEndpointAuthSigningAlgValuesSupported []string
DisplayValuesSupported []string
ClaimTypesSupported []string
ClaimsSupported []string
ServiceDocs *url.URL
ClaimsLocalsSupported []string
UILocalsSupported []string
ClaimsParameterSupported bool
RequestParameterSupported bool
RequestURIParamaterSupported bool
RequireRequestURIRegistration bool
Policy *url.URL
TermsOfService *url.URL
// Not part of the OpenID Provider Metadata
ExpiresAt time.Time
}
// Defaults returns a shallow copy of ProviderConfig with default
// values replacing omitted fields.
//
// var cfg oidc.ProviderConfig
// // Fill provider config with default values for omitted fields.
// cfg = cfg.Defaults()
//
func (p ProviderConfig) Defaults() ProviderConfig {
setDefault := func(val *[]string, defaultVal []string) {
if len(*val) == 0 {
*val = defaultVal
}
}
setDefault(&p.GrantTypesSupported, DefaultGrantTypesSupported)
setDefault(&p.ResponseModesSupported, DefaultResponseModesSupported)
setDefault(&p.TokenEndpointAuthMethodsSupported, DefaultTokenEndpointAuthMethodsSupported)
setDefault(&p.ClaimTypesSupported, DefaultClaimTypesSupported)
return p
}
func (p *ProviderConfig) MarshalJSON() ([]byte, error) {
e := p.toEncodableStruct()
return json.Marshal(&e)
}
func (p *ProviderConfig) UnmarshalJSON(data []byte) error {
var e encodableProviderConfig
if err := json.Unmarshal(data, &e); err != nil {
return err
}
conf, err := e.toStruct()
if err != nil {
return err
}
if err := conf.Valid(); err != nil {
return err
}
*p = conf
return nil
}
type encodableProviderConfig struct {
Issuer string `json:"issuer"`
AuthEndpoint string `json:"authorization_endpoint"`
TokenEndpoint string `json:"token_endpoint"`
UserInfoEndpoint string `json:"userinfo_endpoint,omitempty"`
KeysEndpoint string `json:"jwks_uri"`
RegistrationEndpoint string `json:"registration_endpoint,omitempty"`
EndSessionEndpoint string `json:"end_session_endpoint,omitempty"`
CheckSessionIFrame string `json:"check_session_iframe,omitempty"`
// Use 'omitempty' for all slices as per OIDC spec:
// "Claims that return multiple values are represented as JSON arrays.
// Claims with zero elements MUST be omitted from the response."
// http://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationResponse
ScopesSupported []string `json:"scopes_supported,omitempty"`
ResponseTypesSupported []string `json:"response_types_supported,omitempty"`
ResponseModesSupported []string `json:"response_modes_supported,omitempty"`
GrantTypesSupported []string `json:"grant_types_supported,omitempty"`
ACRValuesSupported []string `json:"acr_values_supported,omitempty"`
SubjectTypesSupported []string `json:"subject_types_supported,omitempty"`
IDTokenSigningAlgValues []string `json:"id_token_signing_alg_values_supported,omitempty"`
IDTokenEncryptionAlgValues []string `json:"id_token_encryption_alg_values_supported,omitempty"`
IDTokenEncryptionEncValues []string `json:"id_token_encryption_enc_values_supported,omitempty"`
UserInfoSigningAlgValues []string `json:"userinfo_signing_alg_values_supported,omitempty"`
UserInfoEncryptionAlgValues []string `json:"userinfo_encryption_alg_values_supported,omitempty"`
UserInfoEncryptionEncValues []string `json:"userinfo_encryption_enc_values_supported,omitempty"`
ReqObjSigningAlgValues []string `json:"request_object_signing_alg_values_supported,omitempty"`
ReqObjEncryptionAlgValues []string `json:"request_object_encryption_alg_values_supported,omitempty"`
ReqObjEncryptionEncValues []string `json:"request_object_encryption_enc_values_supported,omitempty"`
TokenEndpointAuthMethodsSupported []string `json:"token_endpoint_auth_methods_supported,omitempty"`
TokenEndpointAuthSigningAlgValuesSupported []string `json:"token_endpoint_auth_signing_alg_values_supported,omitempty"`
DisplayValuesSupported []string `json:"display_values_supported,omitempty"`
ClaimTypesSupported []string `json:"claim_types_supported,omitempty"`
ClaimsSupported []string `json:"claims_supported,omitempty"`
ServiceDocs string `json:"service_documentation,omitempty"`
ClaimsLocalsSupported []string `json:"claims_locales_supported,omitempty"`
UILocalsSupported []string `json:"ui_locales_supported,omitempty"`
ClaimsParameterSupported bool `json:"claims_parameter_supported,omitempty"`
RequestParameterSupported bool `json:"request_parameter_supported,omitempty"`
RequestURIParamaterSupported bool `json:"request_uri_parameter_supported,omitempty"`
RequireRequestURIRegistration bool `json:"require_request_uri_registration,omitempty"`
Policy string `json:"op_policy_uri,omitempty"`
TermsOfService string `json:"op_tos_uri,omitempty"`
}
func (cfg ProviderConfig) toEncodableStruct() encodableProviderConfig {
return encodableProviderConfig{
Issuer: uriToString(cfg.Issuer),
AuthEndpoint: uriToString(cfg.AuthEndpoint),
TokenEndpoint: uriToString(cfg.TokenEndpoint),
UserInfoEndpoint: uriToString(cfg.UserInfoEndpoint),
KeysEndpoint: uriToString(cfg.KeysEndpoint),
RegistrationEndpoint: uriToString(cfg.RegistrationEndpoint),
EndSessionEndpoint: uriToString(cfg.EndSessionEndpoint),
CheckSessionIFrame: uriToString(cfg.CheckSessionIFrame),
ScopesSupported: cfg.ScopesSupported,
ResponseTypesSupported: cfg.ResponseTypesSupported,
ResponseModesSupported: cfg.ResponseModesSupported,
GrantTypesSupported: cfg.GrantTypesSupported,
ACRValuesSupported: cfg.ACRValuesSupported,
SubjectTypesSupported: cfg.SubjectTypesSupported,
IDTokenSigningAlgValues: cfg.IDTokenSigningAlgValues,
IDTokenEncryptionAlgValues: cfg.IDTokenEncryptionAlgValues,
IDTokenEncryptionEncValues: cfg.IDTokenEncryptionEncValues,
UserInfoSigningAlgValues: cfg.UserInfoSigningAlgValues,
UserInfoEncryptionAlgValues: cfg.UserInfoEncryptionAlgValues,
UserInfoEncryptionEncValues: cfg.UserInfoEncryptionEncValues,
ReqObjSigningAlgValues: cfg.ReqObjSigningAlgValues,
ReqObjEncryptionAlgValues: cfg.ReqObjEncryptionAlgValues,
ReqObjEncryptionEncValues: cfg.ReqObjEncryptionEncValues,
TokenEndpointAuthMethodsSupported: cfg.TokenEndpointAuthMethodsSupported,
TokenEndpointAuthSigningAlgValuesSupported: cfg.TokenEndpointAuthSigningAlgValuesSupported,
DisplayValuesSupported: cfg.DisplayValuesSupported,
ClaimTypesSupported: cfg.ClaimTypesSupported,
ClaimsSupported: cfg.ClaimsSupported,
ServiceDocs: uriToString(cfg.ServiceDocs),
ClaimsLocalsSupported: cfg.ClaimsLocalsSupported,
UILocalsSupported: cfg.UILocalsSupported,
ClaimsParameterSupported: cfg.ClaimsParameterSupported,
RequestParameterSupported: cfg.RequestParameterSupported,
RequestURIParamaterSupported: cfg.RequestURIParamaterSupported,
RequireRequestURIRegistration: cfg.RequireRequestURIRegistration,
Policy: uriToString(cfg.Policy),
TermsOfService: uriToString(cfg.TermsOfService),
}
}
func (e encodableProviderConfig) toStruct() (ProviderConfig, error) {
p := stickyErrParser{}
conf := ProviderConfig{
Issuer: p.parseURI(e.Issuer, "issuer"),
AuthEndpoint: p.parseURI(e.AuthEndpoint, "authorization_endpoint"),
TokenEndpoint: p.parseURI(e.TokenEndpoint, "token_endpoint"),
UserInfoEndpoint: p.parseURI(e.UserInfoEndpoint, "userinfo_endpoint"),
KeysEndpoint: p.parseURI(e.KeysEndpoint, "jwks_uri"),
RegistrationEndpoint: p.parseURI(e.RegistrationEndpoint, "registration_endpoint"),
EndSessionEndpoint: p.parseURI(e.EndSessionEndpoint, "end_session_endpoint"),
CheckSessionIFrame: p.parseURI(e.CheckSessionIFrame, "check_session_iframe"),
ScopesSupported: e.ScopesSupported,
ResponseTypesSupported: e.ResponseTypesSupported,
ResponseModesSupported: e.ResponseModesSupported,
GrantTypesSupported: e.GrantTypesSupported,
ACRValuesSupported: e.ACRValuesSupported,
SubjectTypesSupported: e.SubjectTypesSupported,
IDTokenSigningAlgValues: e.IDTokenSigningAlgValues,
IDTokenEncryptionAlgValues: e.IDTokenEncryptionAlgValues,
IDTokenEncryptionEncValues: e.IDTokenEncryptionEncValues,
UserInfoSigningAlgValues: e.UserInfoSigningAlgValues,
UserInfoEncryptionAlgValues: e.UserInfoEncryptionAlgValues,
UserInfoEncryptionEncValues: e.UserInfoEncryptionEncValues,
ReqObjSigningAlgValues: e.ReqObjSigningAlgValues,
ReqObjEncryptionAlgValues: e.ReqObjEncryptionAlgValues,
ReqObjEncryptionEncValues: e.ReqObjEncryptionEncValues,
TokenEndpointAuthMethodsSupported: e.TokenEndpointAuthMethodsSupported,
TokenEndpointAuthSigningAlgValuesSupported: e.TokenEndpointAuthSigningAlgValuesSupported,
DisplayValuesSupported: e.DisplayValuesSupported,
ClaimTypesSupported: e.ClaimTypesSupported,
ClaimsSupported: e.ClaimsSupported,
ServiceDocs: p.parseURI(e.ServiceDocs, "service_documentation"),
ClaimsLocalsSupported: e.ClaimsLocalsSupported,
UILocalsSupported: e.UILocalsSupported,
ClaimsParameterSupported: e.ClaimsParameterSupported,
RequestParameterSupported: e.RequestParameterSupported,
RequestURIParamaterSupported: e.RequestURIParamaterSupported,
RequireRequestURIRegistration: e.RequireRequestURIRegistration,
Policy: p.parseURI(e.Policy, "op_policy-uri"),
TermsOfService: p.parseURI(e.TermsOfService, "op_tos_uri"),
}
if p.firstErr != nil {
return ProviderConfig{}, p.firstErr
}
return conf, nil
}
// Empty returns if a ProviderConfig holds no information.
//
// This case generally indicates a ProviderConfigGetter has experienced an error
// and has nothing to report.
func (p ProviderConfig) Empty() bool {
return p.Issuer == nil
}
func contains(sli []string, ele string) bool {
for _, s := range sli {
if s == ele {
return true
}
}
return false
}
// Valid determines if a ProviderConfig conforms with the OIDC specification.
// If Valid returns successfully it guarantees required field are non-nil and
// URLs are well formed.
//
// Valid is called by UnmarshalJSON.
//
// NOTE(ericchiang): For development purposes Valid does not mandate 'https' for
// URLs fields where the OIDC spec requires it. This may change in future releases
// of this package. See: https://github.com/coreos/go-oidc/issues/34
func (p ProviderConfig) Valid() error {
grantTypes := p.GrantTypesSupported
if len(grantTypes) == 0 {
grantTypes = DefaultGrantTypesSupported
}
implicitOnly := true
for _, grantType := range grantTypes {
if grantType != oauth2.GrantTypeImplicit {
implicitOnly = false
break
}
}
if len(p.SubjectTypesSupported) == 0 {
return errors.New("missing required field subject_types_supported")
}
if len(p.IDTokenSigningAlgValues) == 0 {
return errors.New("missing required field id_token_signing_alg_values_supported")
}
if len(p.ScopesSupported) != 0 && !contains(p.ScopesSupported, "openid") {
return errors.New("scoped_supported must be unspecified or include 'openid'")
}
if !contains(p.IDTokenSigningAlgValues, "RS256") {
return errors.New("id_token_signing_alg_values_supported must include 'RS256'")
}
if contains(p.TokenEndpointAuthMethodsSupported, "none") {
return errors.New("token_endpoint_auth_signing_alg_values_supported cannot include 'none'")
}
uris := []struct {
val *url.URL
name string
required bool
}{
{p.Issuer, "issuer", true},
{p.AuthEndpoint, "authorization_endpoint", true},
{p.TokenEndpoint, "token_endpoint", !implicitOnly},
{p.UserInfoEndpoint, "userinfo_endpoint", false},
{p.KeysEndpoint, "jwks_uri", true},
{p.RegistrationEndpoint, "registration_endpoint", false},
{p.EndSessionEndpoint, "end_session_endpoint", false},
{p.CheckSessionIFrame, "check_session_iframe", false},
{p.ServiceDocs, "service_documentation", false},
{p.Policy, "op_policy_uri", false},
{p.TermsOfService, "op_tos_uri", false},
}
for _, uri := range uris {
if uri.val == nil {
if !uri.required {
continue
}
return fmt.Errorf("empty value for required uri field %s", uri.name)
}
if uri.val.Host == "" {
return fmt.Errorf("no host for uri field %s", uri.name)
}
if uri.val.Scheme != "http" && uri.val.Scheme != "https" {
return fmt.Errorf("uri field %s schemeis not http or https", uri.name)
}
}
return nil
}
// Supports determines if provider supports a client given their respective metadata.
func (p ProviderConfig) Supports(c ClientMetadata) error {
if err := p.Valid(); err != nil {
return fmt.Errorf("invalid provider config: %v", err)
}
if err := c.Valid(); err != nil {
return fmt.Errorf("invalid client config: %v", err)
}
// Fill default values for omitted fields
c = c.Defaults()
p = p.Defaults()
// Do the supported values list the requested one?
supports := []struct {
supported []string
requested string
name string
}{
{p.IDTokenSigningAlgValues, c.IDTokenResponseOptions.SigningAlg, "id_token_signed_response_alg"},
{p.IDTokenEncryptionAlgValues, c.IDTokenResponseOptions.EncryptionAlg, "id_token_encryption_response_alg"},
{p.IDTokenEncryptionEncValues, c.IDTokenResponseOptions.EncryptionEnc, "id_token_encryption_response_enc"},
{p.UserInfoSigningAlgValues, c.UserInfoResponseOptions.SigningAlg, "userinfo_signed_response_alg"},
{p.UserInfoEncryptionAlgValues, c.UserInfoResponseOptions.EncryptionAlg, "userinfo_encryption_response_alg"},
{p.UserInfoEncryptionEncValues, c.UserInfoResponseOptions.EncryptionEnc, "userinfo_encryption_response_enc"},
{p.ReqObjSigningAlgValues, c.RequestObjectOptions.SigningAlg, "request_object_signing_alg"},
{p.ReqObjEncryptionAlgValues, c.RequestObjectOptions.EncryptionAlg, "request_object_encryption_alg"},
{p.ReqObjEncryptionEncValues, c.RequestObjectOptions.EncryptionEnc, "request_object_encryption_enc"},
}
for _, field := range supports {
if field.requested == "" {
continue
}
if !contains(field.supported, field.requested) {
return fmt.Errorf("provider does not support requested value for field %s", field.name)
}
}
stringsEqual := func(s1, s2 string) bool { return s1 == s2 }
// For lists, are the list of requested values a subset of the supported ones?
supportsAll := []struct {
supported []string
requested []string
name string
// OAuth2.0 response_type can be space separated lists where order doesn't matter.
// For example "id_token token" is the same as "token id_token"
// Support a custom compare method.
comp func(s1, s2 string) bool
}{
{p.GrantTypesSupported, c.GrantTypes, "grant_types", stringsEqual},
{p.ResponseTypesSupported, c.ResponseTypes, "response_type", oauth2.ResponseTypesEqual},
}
for _, field := range supportsAll {
requestLoop:
for _, req := range field.requested {
for _, sup := range field.supported {
if field.comp(req, sup) {
continue requestLoop
}
}
return fmt.Errorf("provider does not support requested value for field %s", field.name)
}
}
// TODO(ericchiang): Are there more checks we feel comfortable with begin strict about?
return nil
}
func (p ProviderConfig) SupportsGrantType(grantType string) bool {
var supported []string
if len(p.GrantTypesSupported) == 0 {
supported = DefaultGrantTypesSupported
} else {
supported = p.GrantTypesSupported
}
for _, t := range supported {
if t == grantType {
return true
}
}
return false
}
type ProviderConfigGetter interface {
Get() (ProviderConfig, error)
}
type ProviderConfigSetter interface {
Set(ProviderConfig) error
}
type ProviderConfigSyncer struct {
from ProviderConfigGetter
to ProviderConfigSetter
clock clockwork.Clock
initialSyncDone bool
initialSyncWait sync.WaitGroup
}
func NewProviderConfigSyncer(from ProviderConfigGetter, to ProviderConfigSetter) *ProviderConfigSyncer {
return &ProviderConfigSyncer{
from: from,
to: to,
clock: clockwork.NewRealClock(),
}
}
func (s *ProviderConfigSyncer) Run() chan struct{} {
stop := make(chan struct{})
var next pcsStepper
next = &pcsStepNext{aft: time.Duration(0)}
s.initialSyncWait.Add(1)
go func() {
for {
select {
case <-s.clock.After(next.after()):
next = next.step(s.sync)
case <-stop:
return
}
}
}()
return stop
}
func (s *ProviderConfigSyncer) WaitUntilInitialSync() {
s.initialSyncWait.Wait()
}
func (s *ProviderConfigSyncer) sync() (time.Duration, error) {
cfg, err := s.from.Get()
if err != nil {
return 0, err
}
if err = s.to.Set(cfg); err != nil {
return 0, fmt.Errorf("error setting provider config: %v", err)
}
if !s.initialSyncDone {
s.initialSyncWait.Done()
s.initialSyncDone = true
}
return nextSyncAfter(cfg.ExpiresAt, s.clock), nil
}
type pcsStepFunc func() (time.Duration, error)
type pcsStepper interface {
after() time.Duration
step(pcsStepFunc) pcsStepper
}
type pcsStepNext struct {
aft time.Duration
}
func (n *pcsStepNext) after() time.Duration {
return n.aft
}
func (n *pcsStepNext) step(fn pcsStepFunc) (next pcsStepper) {
ttl, err := fn()
if err == nil {
next = &pcsStepNext{aft: ttl}
} else {
next = &pcsStepRetry{aft: time.Second}
log.Printf("go-oidc: provider config sync failed, retrying in %v: %v", next.after(), err)
}
return
}
type pcsStepRetry struct {
aft time.Duration
}
func (r *pcsStepRetry) after() time.Duration {
return r.aft
}
func (r *pcsStepRetry) step(fn pcsStepFunc) (next pcsStepper) {
ttl, err := fn()
if err == nil {
next = &pcsStepNext{aft: ttl}
} else {
next = &pcsStepRetry{aft: timeutil.ExpBackoff(r.aft, time.Minute)}
log.Printf("go-oidc: provider config sync failed, retrying in %v: %v", next.after(), err)
}
return
}
func nextSyncAfter(exp time.Time, clock clockwork.Clock) time.Duration {
if exp.IsZero() {
return MaximumProviderConfigSyncInterval
}
t := exp.Sub(clock.Now()) / 2
if t > MaximumProviderConfigSyncInterval {
t = MaximumProviderConfigSyncInterval
} else if t < minimumProviderConfigSyncInterval {
t = minimumProviderConfigSyncInterval
}
return t
}
type httpProviderConfigGetter struct {
hc phttp.Client
issuerURL string
clock clockwork.Clock
}
func NewHTTPProviderConfigGetter(hc phttp.Client, issuerURL string) *httpProviderConfigGetter {
return &httpProviderConfigGetter{
hc: hc,
issuerURL: issuerURL,
clock: clockwork.NewRealClock(),
}
}
func (r *httpProviderConfigGetter) Get() (cfg ProviderConfig, err error) {
// If the Issuer value contains a path component, any terminating / MUST be removed before
// appending /.well-known/openid-configuration.
// https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationRequest
discoveryURL := strings.TrimSuffix(r.issuerURL, "/") + discoveryConfigPath
req, err := http.NewRequest("GET", discoveryURL, nil)
if err != nil {
return
}
resp, err := r.hc.Do(req)
if err != nil {
return
}
defer resp.Body.Close()
if err = json.NewDecoder(resp.Body).Decode(&cfg); err != nil {
return
}
var ttl time.Duration
var ok bool
ttl, ok, err = phttp.Cacheable(resp.Header)
if err != nil {
return
} else if ok {
cfg.ExpiresAt = r.clock.Now().UTC().Add(ttl)
}
// The issuer value returned MUST be identical to the Issuer URL that was directly used to retrieve the configuration information.
// http://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationValidation
if !urlEqual(cfg.Issuer.String(), r.issuerURL) {
err = fmt.Errorf(`"issuer" in config (%v) does not match provided issuer URL (%v)`, cfg.Issuer, r.issuerURL)
return
}
return
}
func FetchProviderConfig(hc phttp.Client, issuerURL string) (ProviderConfig, error) {
if hc == nil {
hc = http.DefaultClient
}
g := NewHTTPProviderConfigGetter(hc, issuerURL)
return g.Get()
}
func WaitForProviderConfig(hc phttp.Client, issuerURL string) (pcfg ProviderConfig) {
return waitForProviderConfig(hc, issuerURL, clockwork.NewRealClock())
}
func waitForProviderConfig(hc phttp.Client, issuerURL string, clock clockwork.Clock) (pcfg ProviderConfig) {
var sleep time.Duration
var err error
for {
pcfg, err = FetchProviderConfig(hc, issuerURL)
if err == nil {
break
}
sleep = timeutil.ExpBackoff(sleep, time.Minute)
fmt.Printf("Failed fetching provider config, trying again in %v: %v\n", sleep, err)
time.Sleep(sleep)
}
return
}

88
vendor/github.com/coreos/go-oidc/oidc/transport.go generated vendored Normal file
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package oidc
import (
"fmt"
"net/http"
"sync"
phttp "github.com/coreos/go-oidc/http"
"github.com/coreos/go-oidc/jose"
)
type TokenRefresher interface {
// Verify checks if the provided token is currently valid or not.
Verify(jose.JWT) error
// Refresh attempts to authenticate and retrieve a new token.
Refresh() (jose.JWT, error)
}
type ClientCredsTokenRefresher struct {
Issuer string
OIDCClient *Client
}
func (c *ClientCredsTokenRefresher) Verify(jwt jose.JWT) (err error) {
_, err = VerifyClientClaims(jwt, c.Issuer)
return
}
func (c *ClientCredsTokenRefresher) Refresh() (jwt jose.JWT, err error) {
if err = c.OIDCClient.Healthy(); err != nil {
err = fmt.Errorf("unable to authenticate, unhealthy OIDC client: %v", err)
return
}
jwt, err = c.OIDCClient.ClientCredsToken([]string{"openid"})
if err != nil {
err = fmt.Errorf("unable to verify auth code with issuer: %v", err)
return
}
return
}
type AuthenticatedTransport struct {
TokenRefresher
http.RoundTripper
mu sync.Mutex
jwt jose.JWT
}
func (t *AuthenticatedTransport) verifiedJWT() (jose.JWT, error) {
t.mu.Lock()
defer t.mu.Unlock()
if t.TokenRefresher.Verify(t.jwt) == nil {
return t.jwt, nil
}
jwt, err := t.TokenRefresher.Refresh()
if err != nil {
return jose.JWT{}, fmt.Errorf("unable to acquire valid JWT: %v", err)
}
t.jwt = jwt
return t.jwt, nil
}
// SetJWT sets the JWT held by the Transport.
// This is useful for cases in which you want to set an initial JWT.
func (t *AuthenticatedTransport) SetJWT(jwt jose.JWT) {
t.mu.Lock()
defer t.mu.Unlock()
t.jwt = jwt
}
func (t *AuthenticatedTransport) RoundTrip(r *http.Request) (*http.Response, error) {
jwt, err := t.verifiedJWT()
if err != nil {
return nil, err
}
req := phttp.CopyRequest(r)
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", jwt.Encode()))
return t.RoundTripper.RoundTrip(req)
}

109
vendor/github.com/coreos/go-oidc/oidc/util.go generated vendored Normal file
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package oidc
import (
"crypto/rand"
"encoding/base64"
"errors"
"fmt"
"net"
"net/http"
"net/url"
"strings"
"time"
"github.com/coreos/go-oidc/jose"
)
// RequestTokenExtractor funcs extract a raw encoded token from a request.
type RequestTokenExtractor func(r *http.Request) (string, error)
// ExtractBearerToken is a RequestTokenExtractor which extracts a bearer token from a request's
// Authorization header.
func ExtractBearerToken(r *http.Request) (string, error) {
ah := r.Header.Get("Authorization")
if ah == "" {
return "", errors.New("missing Authorization header")
}
if len(ah) <= 6 || strings.ToUpper(ah[0:6]) != "BEARER" {
return "", errors.New("should be a bearer token")
}
val := ah[7:]
if len(val) == 0 {
return "", errors.New("bearer token is empty")
}
return val, nil
}
// CookieTokenExtractor returns a RequestTokenExtractor which extracts a token from the named cookie in a request.
func CookieTokenExtractor(cookieName string) RequestTokenExtractor {
return func(r *http.Request) (string, error) {
ck, err := r.Cookie(cookieName)
if err != nil {
return "", fmt.Errorf("token cookie not found in request: %v", err)
}
if ck.Value == "" {
return "", errors.New("token cookie found but is empty")
}
return ck.Value, nil
}
}
func NewClaims(iss, sub string, aud interface{}, iat, exp time.Time) jose.Claims {
return jose.Claims{
// required
"iss": iss,
"sub": sub,
"aud": aud,
"iat": iat.Unix(),
"exp": exp.Unix(),
}
}
func GenClientID(hostport string) (string, error) {
b, err := randBytes(32)
if err != nil {
return "", err
}
var host string
if strings.Contains(hostport, ":") {
host, _, err = net.SplitHostPort(hostport)
if err != nil {
return "", err
}
} else {
host = hostport
}
return fmt.Sprintf("%s@%s", base64.URLEncoding.EncodeToString(b), host), nil
}
func randBytes(n int) ([]byte, error) {
b := make([]byte, n)
got, err := rand.Read(b)
if err != nil {
return nil, err
} else if n != got {
return nil, errors.New("unable to generate enough random data")
}
return b, nil
}
// urlEqual checks two urls for equality using only the host and path portions.
func urlEqual(url1, url2 string) bool {
u1, err := url.Parse(url1)
if err != nil {
return false
}
u2, err := url.Parse(url2)
if err != nil {
return false
}
return strings.ToLower(u1.Host+u1.Path) == strings.ToLower(u2.Host+u2.Path)
}

190
vendor/github.com/coreos/go-oidc/oidc/verification.go generated vendored Normal file
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package oidc
import (
"errors"
"fmt"
"time"
"github.com/jonboulle/clockwork"
"github.com/coreos/go-oidc/jose"
"github.com/coreos/go-oidc/key"
)
func VerifySignature(jwt jose.JWT, keys []key.PublicKey) (bool, error) {
jwtBytes := []byte(jwt.Data())
for _, k := range keys {
v, err := k.Verifier()
if err != nil {
return false, err
}
if v.Verify(jwt.Signature, jwtBytes) == nil {
return true, nil
}
}
return false, nil
}
// containsString returns true if the given string(needle) is found
// in the string array(haystack).
func containsString(needle string, haystack []string) bool {
for _, v := range haystack {
if v == needle {
return true
}
}
return false
}
// Verify claims in accordance with OIDC spec
// http://openid.net/specs/openid-connect-basic-1_0.html#IDTokenValidation
func VerifyClaims(jwt jose.JWT, issuer, clientID string) error {
now := time.Now().UTC()
claims, err := jwt.Claims()
if err != nil {
return err
}
ident, err := IdentityFromClaims(claims)
if err != nil {
return err
}
if ident.ExpiresAt.Before(now) {
return errors.New("token is expired")
}
// iss REQUIRED. Issuer Identifier for the Issuer of the response.
// The iss value is a case sensitive URL using the https scheme that contains scheme,
// host, and optionally, port number and path components and no query or fragment components.
if iss, exists := claims["iss"].(string); exists {
if !urlEqual(iss, issuer) {
return fmt.Errorf("invalid claim value: 'iss'. expected=%s, found=%s.", issuer, iss)
}
} else {
return errors.New("missing claim: 'iss'")
}
// iat REQUIRED. Time at which the JWT was issued.
// Its value is a JSON number representing the number of seconds from 1970-01-01T0:0:0Z
// as measured in UTC until the date/time.
if _, exists := claims["iat"].(float64); !exists {
return errors.New("missing claim: 'iat'")
}
// aud REQUIRED. Audience(s) that this ID Token is intended for.
// It MUST contain the OAuth 2.0 client_id of the Relying Party as an audience value.
// It MAY also contain identifiers for other audiences. In the general case, the aud
// value is an array of case sensitive strings. In the common special case when there
// is one audience, the aud value MAY be a single case sensitive string.
if aud, ok, err := claims.StringClaim("aud"); err == nil && ok {
if aud != clientID {
return fmt.Errorf("invalid claims, 'aud' claim and 'client_id' do not match, aud=%s, client_id=%s", aud, clientID)
}
} else if aud, ok, err := claims.StringsClaim("aud"); err == nil && ok {
if !containsString(clientID, aud) {
return fmt.Errorf("invalid claims, cannot find 'client_id' in 'aud' claim, aud=%v, client_id=%s", aud, clientID)
}
} else {
return errors.New("invalid claim value: 'aud' is required, and should be either string or string array")
}
return nil
}
// VerifyClientClaims verifies all the required claims are valid for a "client credentials" JWT.
// Returns the client ID if valid, or an error if invalid.
func VerifyClientClaims(jwt jose.JWT, issuer string) (string, error) {
claims, err := jwt.Claims()
if err != nil {
return "", fmt.Errorf("failed to parse JWT claims: %v", err)
}
iss, ok, err := claims.StringClaim("iss")
if err != nil {
return "", fmt.Errorf("failed to parse 'iss' claim: %v", err)
} else if !ok {
return "", errors.New("missing required 'iss' claim")
} else if !urlEqual(iss, issuer) {
return "", fmt.Errorf("'iss' claim does not match expected issuer, iss=%s", iss)
}
sub, ok, err := claims.StringClaim("sub")
if err != nil {
return "", fmt.Errorf("failed to parse 'sub' claim: %v", err)
} else if !ok {
return "", errors.New("missing required 'sub' claim")
}
if aud, ok, err := claims.StringClaim("aud"); err == nil && ok {
if aud != sub {
return "", fmt.Errorf("invalid claims, 'aud' claim and 'sub' claim do not match, aud=%s, sub=%s", aud, sub)
}
} else if aud, ok, err := claims.StringsClaim("aud"); err == nil && ok {
if !containsString(sub, aud) {
return "", fmt.Errorf("invalid claims, cannot find 'sud' in 'aud' claim, aud=%v, sub=%s", aud, sub)
}
} else {
return "", errors.New("invalid claim value: 'aud' is required, and should be either string or string array")
}
now := time.Now().UTC()
exp, ok, err := claims.TimeClaim("exp")
if err != nil {
return "", fmt.Errorf("failed to parse 'exp' claim: %v", err)
} else if !ok {
return "", errors.New("missing required 'exp' claim")
} else if exp.Before(now) {
return "", fmt.Errorf("token already expired at: %v", exp)
}
return sub, nil
}
type JWTVerifier struct {
issuer string
clientID string
syncFunc func() error
keysFunc func() []key.PublicKey
clock clockwork.Clock
}
func NewJWTVerifier(issuer, clientID string, syncFunc func() error, keysFunc func() []key.PublicKey) JWTVerifier {
return JWTVerifier{
issuer: issuer,
clientID: clientID,
syncFunc: syncFunc,
keysFunc: keysFunc,
clock: clockwork.NewRealClock(),
}
}
func (v *JWTVerifier) Verify(jwt jose.JWT) error {
// Verify claims before verifying the signature. This is an optimization to throw out
// tokens we know are invalid without undergoing an expensive signature check and
// possibly a re-sync event.
if err := VerifyClaims(jwt, v.issuer, v.clientID); err != nil {
return fmt.Errorf("oidc: JWT claims invalid: %v", err)
}
ok, err := VerifySignature(jwt, v.keysFunc())
if err != nil {
return fmt.Errorf("oidc: JWT signature verification failed: %v", err)
} else if ok {
return nil
}
if err = v.syncFunc(); err != nil {
return fmt.Errorf("oidc: failed syncing KeySet: %v", err)
}
ok, err = VerifySignature(jwt, v.keysFunc())
if err != nil {
return fmt.Errorf("oidc: JWT signature verification failed: %v", err)
} else if !ok {
return errors.New("oidc: unable to verify JWT signature: no matching keys")
}
return nil
}

263
vendor/github.com/coreos/go-oidc/verify.go generated vendored Normal file
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package oidc
import (
"bytes"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2"
jose "gopkg.in/square/go-jose.v2"
)
// IDTokenVerifier provides verification for ID Tokens.
type IDTokenVerifier struct {
keySet *remoteKeySet
config *verificationConfig
}
// verificationConfig is the unexported configuration for an IDTokenVerifier.
//
// Users interact with this struct using a VerificationOption.
type verificationConfig struct {
issuer string
// If provided, this value must be in the ID Token audiences.
audience string
// If not nil, check the expiry of the id token.
checkExpiry func() time.Time
// If specified, only these sets of algorithms may be used to sign the JWT.
requiredAlgs []string
// If not nil, don't verify nonce.
nonceSource NonceSource
}
// VerificationOption provides additional checks on ID Tokens.
type VerificationOption interface {
// Unexport this method so other packages can't implement this interface.
updateConfig(c *verificationConfig)
}
// Verifier returns an IDTokenVerifier that uses the provider's key set to verify JWTs.
//
// The returned IDTokenVerifier is tied to the Provider's context and its behavior is
// undefined once the Provider's context is canceled.
func (p *Provider) Verifier(options ...VerificationOption) *IDTokenVerifier {
config := &verificationConfig{issuer: p.issuer}
for _, option := range options {
option.updateConfig(config)
}
return newVerifier(p.remoteKeySet, config)
}
func newVerifier(keySet *remoteKeySet, config *verificationConfig) *IDTokenVerifier {
// As discussed in the godocs for VerifrySigningAlg, because almost all providers
// only support RS256, default to only allowing it.
if len(config.requiredAlgs) == 0 {
config.requiredAlgs = []string{RS256}
}
return &IDTokenVerifier{
keySet: keySet,
config: config,
}
}
func parseJWT(p string) ([]byte, error) {
parts := strings.Split(p, ".")
if len(parts) < 2 {
return nil, fmt.Errorf("oidc: malformed jwt, expected 3 parts got %d", len(parts))
}
payload, err := base64.RawURLEncoding.DecodeString(parts[1])
if err != nil {
return nil, fmt.Errorf("oidc: malformed jwt payload: %v", err)
}
return payload, nil
}
func contains(sli []string, ele string) bool {
for _, s := range sli {
if s == ele {
return true
}
}
return false
}
// Verify parses a raw ID Token, verifies it's been signed by the provider, preforms
// any additional checks passed as VerifictionOptions, and returns the payload.
//
// See: https://openid.net/specs/openid-connect-core-1_0.html#IDTokenValidation
//
// oauth2Token, err := oauth2Config.Exchange(ctx, r.URL.Query().Get("code"))
// if err != nil {
// // handle error
// }
//
// // Extract the ID Token from oauth2 token.
// rawIDToken, ok := oauth2Token.Extra("id_token").(string)
// if !ok {
// // handle error
// }
//
// token, err := verifier.Verify(ctx, rawIDToken)
//
func (v *IDTokenVerifier) Verify(ctx context.Context, rawIDToken string) (*IDToken, error) {
jws, err := jose.ParseSigned(rawIDToken)
if err != nil {
return nil, fmt.Errorf("oidc: mallformed jwt: %v", err)
}
// Throw out tokens with invalid claims before trying to verify the token. This lets
// us do cheap checks before possibly re-syncing keys.
payload, err := parseJWT(rawIDToken)
if err != nil {
return nil, fmt.Errorf("oidc: malformed jwt: %v", err)
}
var token idToken
if err := json.Unmarshal(payload, &token); err != nil {
return nil, fmt.Errorf("oidc: failed to unmarshal claims: %v", err)
}
t := &IDToken{
Issuer: token.Issuer,
Subject: token.Subject,
Audience: []string(token.Audience),
Expiry: time.Time(token.Expiry),
IssuedAt: time.Time(token.IssuedAt),
Nonce: token.Nonce,
claims: payload,
}
// Check issuer.
if t.Issuer != v.config.issuer {
return nil, fmt.Errorf("oidc: id token issued by a different provider, expected %q got %q", v.config.issuer, t.Issuer)
}
// If a client ID has been provided, make sure it's part of the audience.
if v.config.audience != "" {
if !contains(t.Audience, v.config.audience) {
return nil, fmt.Errorf("oidc: expected audience %q got %q", v.config.audience, t.Audience)
}
}
// If a set of required algorithms has been provided, ensure that the signatures use those.
var keyIDs, gotAlgs []string
for _, sig := range jws.Signatures {
if len(v.config.requiredAlgs) == 0 || contains(v.config.requiredAlgs, sig.Header.Algorithm) {
keyIDs = append(keyIDs, sig.Header.KeyID)
} else {
gotAlgs = append(gotAlgs, sig.Header.Algorithm)
}
}
if len(keyIDs) == 0 {
return nil, fmt.Errorf("oidc: no signatures use a require algorithm, expected %q got %q", v.config.requiredAlgs, gotAlgs)
}
// Get keys from the remote key set. This may trigger a re-sync.
keys, err := v.keySet.keysWithID(ctx, keyIDs)
if err != nil {
return nil, fmt.Errorf("oidc: get keys for id token: %v", err)
}
if len(keys) == 0 {
return nil, fmt.Errorf("oidc: no keys match signature ID(s) %q", keyIDs)
}
// Try to use a key to validate the signature.
var gotPayload []byte
for _, key := range keys {
if p, err := jws.Verify(&key); err == nil {
gotPayload = p
}
}
if len(gotPayload) == 0 {
return nil, fmt.Errorf("oidc: failed to verify id token")
}
// Ensure that the payload returned by the square actually matches the payload parsed earlier.
if !bytes.Equal(gotPayload, payload) {
return nil, errors.New("oidc: internal error, payload parsed did not match previous payload")
}
// Check the nonce after we've verified the token. We don't want to allow unverified
// payloads to trigger a nonce lookup.
if v.config.nonceSource != nil {
if err := v.config.nonceSource.ClaimNonce(t.Nonce); err != nil {
return nil, err
}
}
return t, nil
}
// VerifyAudience ensures that an ID Token was issued for the specific client.
//
// Note that a verified token may be valid for other clients, as OpenID Connect allows a token to have
// multiple audiences.
func VerifyAudience(clientID string) VerificationOption {
return clientVerifier{clientID}
}
type clientVerifier struct {
clientID string
}
func (v clientVerifier) updateConfig(c *verificationConfig) {
c.audience = v.clientID
}
// VerifyExpiry ensures that an ID Token has not expired.
func VerifyExpiry() VerificationOption {
return expiryVerifier{}
}
type expiryVerifier struct{}
func (v expiryVerifier) updateConfig(c *verificationConfig) {
c.checkExpiry = time.Now
}
// VerifySigningAlg enforces that an ID Token is signed by a specific signing algorithm.
//
// Because so many providers only support RS256, if this verifiction option isn't used,
// the IDTokenVerifier defaults to only allowing RS256.
func VerifySigningAlg(allowedAlgs ...string) VerificationOption {
return algVerifier{allowedAlgs}
}
type algVerifier struct {
algs []string
}
func (v algVerifier) updateConfig(c *verificationConfig) {
c.requiredAlgs = v.algs
}
// Nonce returns an auth code option which requires the ID Token created by the
// OpenID Connect provider to contain the specified nonce.
func Nonce(nonce string) oauth2.AuthCodeOption {
return oauth2.SetAuthURLParam("nonce", nonce)
}
// NonceSource represents a source which can verify a nonce is valid and has not
// been claimed before.
type NonceSource interface {
ClaimNonce(nonce string) error
}
// VerifyNonce ensures that the ID Token contains a nonce which can be claimed by the nonce source.
func VerifyNonce(source NonceSource) VerificationOption {
return nonceVerifier{source}
}
type nonceVerifier struct {
nonceSource NonceSource
}
func (n nonceVerifier) updateConfig(c *verificationConfig) {
c.nonceSource = n.nonceSource
}

191
vendor/github.com/coreos/go-systemd/LICENSE generated vendored Normal file
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@ -0,0 +1,191 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by the copyright
owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all other entities
that control, are controlled by, or are under common control with that entity.
For the purposes of this definition, "control" means (i) the power, direct or
indirect, to cause the direction or management of such entity, whether by
contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.
"Source" form shall mean the preferred form for making modifications, including
but not limited to software source code, documentation source, and configuration
files.
"Object" form shall mean any form resulting from mechanical transformation or
translation of a Source form, including but not limited to compiled object code,
generated documentation, and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or Object form, made
available under the License, as indicated by a copyright notice that is included
in or attached to the work (an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object form, that
is based on (or derived from) the Work and for which the editorial revisions,
annotations, elaborations, or other modifications represent, as a whole, an
original work of authorship. For the purposes of this License, Derivative Works
shall not include works that remain separable from, or merely link (or bind by
name) to the interfaces of, the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including the original version
of the Work and any modifications or additions to that Work or Derivative Works
thereof, that is intentionally submitted to Licensor for inclusion in the Work
by the copyright owner or by an individual or Legal Entity authorized to submit
on behalf of the copyright owner. For the purposes of this definition,
"submitted" means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems, and
issue tracking systems that are managed by, or on behalf of, the Licensor for
the purpose of discussing and improving the Work, but excluding communication
that is conspicuously marked or otherwise designated in writing by the copyright
owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
of whom a Contribution has been received by Licensor and subsequently
incorporated within the Work.
2. Grant of Copyright License.
Subject to the terms and conditions of this License, each Contributor hereby
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the Work and such
Derivative Works in Source or Object form.
3. Grant of Patent License.
Subject to the terms and conditions of this License, each Contributor hereby
grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable (except as stated in this section) patent license to make, have
made, use, offer to sell, sell, import, and otherwise transfer the Work, where
such license applies only to those patent claims licensable by such Contributor
that are necessarily infringed by their Contribution(s) alone or by combination
of their Contribution(s) with the Work to which such Contribution(s) was
submitted. If You institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work or a
Contribution incorporated within the Work constitutes direct or contributory
patent infringement, then any patent licenses granted to You under this License
for that Work shall terminate as of the date such litigation is filed.
4. Redistribution.
You may reproduce and distribute copies of the Work or Derivative Works thereof
in any medium, with or without modifications, and in Source or Object form,
provided that You meet the following conditions:
You must give any other recipients of the Work or Derivative Works a copy of
this License; and
You must cause any modified files to carry prominent notices stating that You
changed the files; and
You must retain, in the Source form of any Derivative Works that You distribute,
all copyright, patent, trademark, and attribution notices from the Source form
of the Work, excluding those notices that do not pertain to any part of the
Derivative Works; and
If the Work includes a "NOTICE" text file as part of its distribution, then any
Derivative Works that You distribute must include a readable copy of the
attribution notices contained within such NOTICE file, excluding those notices
that do not pertain to any part of the Derivative Works, in at least one of the
following places: within a NOTICE text file distributed as part of the
Derivative Works; within the Source form or documentation, if provided along
with the Derivative Works; or, within a display generated by the Derivative
Works, if and wherever such third-party notices normally appear. The contents of
the NOTICE file are for informational purposes only and do not modify the
License. You may add Your own attribution notices within Derivative Works that
You distribute, alongside or as an addendum to the NOTICE text from the Work,
provided that such additional attribution notices cannot be construed as
modifying the License.
You may add Your own copyright statement to Your modifications and may provide
additional or different license terms and conditions for use, reproduction, or
distribution of Your modifications, or for any such Derivative Works as a whole,
provided Your use, reproduction, and distribution of the Work otherwise complies
with the conditions stated in this License.
5. Submission of Contributions.
Unless You explicitly state otherwise, any Contribution intentionally submitted
for inclusion in the Work by You to the Licensor shall be under the terms and
conditions of this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify the terms of
any separate license agreement you may have executed with Licensor regarding
such Contributions.
6. Trademarks.
This License does not grant permission to use the trade names, trademarks,
service marks, or product names of the Licensor, except as required for
reasonable and customary use in describing the origin of the Work and
reproducing the content of the NOTICE file.
7. Disclaimer of Warranty.
Unless required by applicable law or agreed to in writing, Licensor provides the
Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
including, without limitation, any warranties or conditions of TITLE,
NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
solely responsible for determining the appropriateness of using or
redistributing the Work and assume any risks associated with Your exercise of
permissions under this License.
8. Limitation of Liability.
In no event and under no legal theory, whether in tort (including negligence),
contract, or otherwise, unless required by applicable law (such as deliberate
and grossly negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special, incidental,
or consequential damages of any character arising as a result of this License or
out of the use or inability to use the Work (including but not limited to
damages for loss of goodwill, work stoppage, computer failure or malfunction, or
any and all other commercial damages or losses), even if such Contributor has
been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability.
While redistributing the Work or Derivative Works thereof, You may choose to
offer, and charge a fee for, acceptance of support, warranty, indemnity, or
other liability obligations and/or rights consistent with this License. However,
in accepting such obligations, You may act only on Your own behalf and on Your
sole responsibility, not on behalf of any other Contributor, and only if You
agree to indemnify, defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason of your
accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work
To apply the Apache License to your work, attach the following boilerplate
notice, with the fields enclosed by brackets "[]" replaced with your own
identifying information. (Don't include the brackets!) The text should be
enclosed in the appropriate comment syntax for the file format. We also
recommend that a file or class name and description of purpose be included on
the same "printed page" as the copyright notice for easier identification within
third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

63
vendor/github.com/coreos/go-systemd/daemon/sdnotify.go generated vendored Normal file
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// Copyright 2014 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code forked from Docker project
package daemon
import (
"net"
"os"
)
// SdNotify sends a message to the init daemon. It is common to ignore the error.
// If `unsetEnvironment` is true, the environment variable `NOTIFY_SOCKET`
// will be unconditionally unset.
//
// It returns one of the following:
// (false, nil) - notification not supported (i.e. NOTIFY_SOCKET is unset)
// (false, err) - notification supported, but failure happened (e.g. error connecting to NOTIFY_SOCKET or while sending data)
// (true, nil) - notification supported, data has been sent
func SdNotify(unsetEnvironment bool, state string) (sent bool, err error) {
socketAddr := &net.UnixAddr{
Name: os.Getenv("NOTIFY_SOCKET"),
Net: "unixgram",
}
// NOTIFY_SOCKET not set
if socketAddr.Name == "" {
return false, nil
}
if unsetEnvironment {
err = os.Unsetenv("NOTIFY_SOCKET")
}
if err != nil {
return false, err
}
conn, err := net.DialUnix(socketAddr.Net, nil, socketAddr)
// Error connecting to NOTIFY_SOCKET
if err != nil {
return false, err
}
defer conn.Close()
_, err = conn.Write([]byte(state))
// Error sending the message
if err != nil {
return false, err
}
return true, nil
}

72
vendor/github.com/coreos/go-systemd/daemon/watchdog.go generated vendored Normal file
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// Copyright 2016 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package daemon
import (
"fmt"
"os"
"strconv"
"time"
)
// SdWatchdogEnabled return watchdog information for a service.
// Process should send daemon.SdNotify("WATCHDOG=1") every time / 2.
// If `unsetEnvironment` is true, the environment variables `WATCHDOG_USEC`
// and `WATCHDOG_PID` will be unconditionally unset.
//
// It returns one of the following:
// (0, nil) - watchdog isn't enabled or we aren't the watched PID.
// (0, err) - an error happened (e.g. error converting time).
// (time, nil) - watchdog is enabled and we can send ping.
// time is delay before inactive service will be killed.
func SdWatchdogEnabled(unsetEnvironment bool) (time.Duration, error) {
wusec := os.Getenv("WATCHDOG_USEC")
wpid := os.Getenv("WATCHDOG_PID")
if unsetEnvironment {
wusecErr := os.Unsetenv("WATCHDOG_USEC")
wpidErr := os.Unsetenv("WATCHDOG_PID")
if wusecErr != nil {
return 0, wusecErr
}
if wpidErr != nil {
return 0, wpidErr
}
}
if wusec == "" {
return 0, nil
}
s, err := strconv.Atoi(wusec)
if err != nil {
return 0, fmt.Errorf("error converting WATCHDOG_USEC: %s", err)
}
if s <= 0 {
return 0, fmt.Errorf("error WATCHDOG_USEC must be a positive number")
}
interval := time.Duration(s) * time.Microsecond
if wpid == "" {
return interval, nil
}
p, err := strconv.Atoi(wpid)
if err != nil {
return 0, fmt.Errorf("error converting WATCHDOG_PID: %s", err)
}
if os.Getpid() != p {
return 0, nil
}
return interval, nil
}

202
vendor/github.com/coreos/pkg/LICENSE generated vendored Normal file
View file

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright {yyyy} {name of copyright owner}
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

5
vendor/github.com/coreos/pkg/NOTICE generated vendored Normal file
View file

@ -0,0 +1,5 @@
CoreOS Project
Copyright 2014 CoreOS, Inc
This product includes software developed at CoreOS, Inc.
(http://www.coreos.com/).

106
vendor/github.com/coreos/pkg/capnslog/formatters.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import (
"bufio"
"fmt"
"io"
"runtime"
"strings"
"time"
)
type Formatter interface {
Format(pkg string, level LogLevel, depth int, entries ...interface{})
Flush()
}
func NewStringFormatter(w io.Writer) *StringFormatter {
return &StringFormatter{
w: bufio.NewWriter(w),
}
}
type StringFormatter struct {
w *bufio.Writer
}
func (s *StringFormatter) Format(pkg string, l LogLevel, i int, entries ...interface{}) {
now := time.Now().UTC()
s.w.WriteString(now.Format(time.RFC3339))
s.w.WriteByte(' ')
writeEntries(s.w, pkg, l, i, entries...)
s.Flush()
}
func writeEntries(w *bufio.Writer, pkg string, _ LogLevel, _ int, entries ...interface{}) {
if pkg != "" {
w.WriteString(pkg + ": ")
}
str := fmt.Sprint(entries...)
endsInNL := strings.HasSuffix(str, "\n")
w.WriteString(str)
if !endsInNL {
w.WriteString("\n")
}
}
func (s *StringFormatter) Flush() {
s.w.Flush()
}
func NewPrettyFormatter(w io.Writer, debug bool) Formatter {
return &PrettyFormatter{
w: bufio.NewWriter(w),
debug: debug,
}
}
type PrettyFormatter struct {
w *bufio.Writer
debug bool
}
func (c *PrettyFormatter) Format(pkg string, l LogLevel, depth int, entries ...interface{}) {
now := time.Now()
ts := now.Format("2006-01-02 15:04:05")
c.w.WriteString(ts)
ms := now.Nanosecond() / 1000
c.w.WriteString(fmt.Sprintf(".%06d", ms))
if c.debug {
_, file, line, ok := runtime.Caller(depth) // It's always the same number of frames to the user's call.
if !ok {
file = "???"
line = 1
} else {
slash := strings.LastIndex(file, "/")
if slash >= 0 {
file = file[slash+1:]
}
}
if line < 0 {
line = 0 // not a real line number
}
c.w.WriteString(fmt.Sprintf(" [%s:%d]", file, line))
}
c.w.WriteString(fmt.Sprint(" ", l.Char(), " | "))
writeEntries(c.w, pkg, l, depth, entries...)
c.Flush()
}
func (c *PrettyFormatter) Flush() {
c.w.Flush()
}

96
vendor/github.com/coreos/pkg/capnslog/glog_formatter.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import (
"bufio"
"bytes"
"io"
"os"
"runtime"
"strconv"
"strings"
"time"
)
var pid = os.Getpid()
type GlogFormatter struct {
StringFormatter
}
func NewGlogFormatter(w io.Writer) *GlogFormatter {
g := &GlogFormatter{}
g.w = bufio.NewWriter(w)
return g
}
func (g GlogFormatter) Format(pkg string, level LogLevel, depth int, entries ...interface{}) {
g.w.Write(GlogHeader(level, depth+1))
g.StringFormatter.Format(pkg, level, depth+1, entries...)
}
func GlogHeader(level LogLevel, depth int) []byte {
// Lmmdd hh:mm:ss.uuuuuu threadid file:line]
now := time.Now().UTC()
_, file, line, ok := runtime.Caller(depth) // It's always the same number of frames to the user's call.
if !ok {
file = "???"
line = 1
} else {
slash := strings.LastIndex(file, "/")
if slash >= 0 {
file = file[slash+1:]
}
}
if line < 0 {
line = 0 // not a real line number
}
buf := &bytes.Buffer{}
buf.Grow(30)
_, month, day := now.Date()
hour, minute, second := now.Clock()
buf.WriteString(level.Char())
twoDigits(buf, int(month))
twoDigits(buf, day)
buf.WriteByte(' ')
twoDigits(buf, hour)
buf.WriteByte(':')
twoDigits(buf, minute)
buf.WriteByte(':')
twoDigits(buf, second)
buf.WriteByte('.')
buf.WriteString(strconv.Itoa(now.Nanosecond() / 1000))
buf.WriteByte('Z')
buf.WriteByte(' ')
buf.WriteString(strconv.Itoa(pid))
buf.WriteByte(' ')
buf.WriteString(file)
buf.WriteByte(':')
buf.WriteString(strconv.Itoa(line))
buf.WriteByte(']')
buf.WriteByte(' ')
return buf.Bytes()
}
const digits = "0123456789"
func twoDigits(b *bytes.Buffer, d int) {
c2 := digits[d%10]
d /= 10
c1 := digits[d%10]
b.WriteByte(c1)
b.WriteByte(c2)
}

49
vendor/github.com/coreos/pkg/capnslog/init.go generated vendored Normal file
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@ -0,0 +1,49 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// +build !windows
package capnslog
import (
"io"
"os"
"syscall"
)
// Here's where the opinionation comes in. We need some sensible defaults,
// especially after taking over the log package. Your project (whatever it may
// be) may see things differently. That's okay; there should be no defaults in
// the main package that cannot be controlled or overridden programatically,
// otherwise it's a bug. Doing so is creating your own init_log.go file much
// like this one.
func init() {
initHijack()
// Go `log` pacakge uses os.Stderr.
SetFormatter(NewDefaultFormatter(os.Stderr))
SetGlobalLogLevel(INFO)
}
func NewDefaultFormatter(out io.Writer) Formatter {
if syscall.Getppid() == 1 {
// We're running under init, which may be systemd.
f, err := NewJournaldFormatter()
if err == nil {
return f
}
}
return NewPrettyFormatter(out, false)
}

25
vendor/github.com/coreos/pkg/capnslog/init_windows.go generated vendored Normal file
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@ -0,0 +1,25 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import "os"
func init() {
initHijack()
// Go `log` package uses os.Stderr.
SetFormatter(NewPrettyFormatter(os.Stderr, false))
SetGlobalLogLevel(INFO)
}

68
vendor/github.com/coreos/pkg/capnslog/journald_formatter.go generated vendored Normal file
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@ -0,0 +1,68 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// +build !windows
package capnslog
import (
"errors"
"fmt"
"os"
"path/filepath"
"github.com/coreos/go-systemd/journal"
)
func NewJournaldFormatter() (Formatter, error) {
if !journal.Enabled() {
return nil, errors.New("No systemd detected")
}
return &journaldFormatter{}, nil
}
type journaldFormatter struct{}
func (j *journaldFormatter) Format(pkg string, l LogLevel, _ int, entries ...interface{}) {
var pri journal.Priority
switch l {
case CRITICAL:
pri = journal.PriCrit
case ERROR:
pri = journal.PriErr
case WARNING:
pri = journal.PriWarning
case NOTICE:
pri = journal.PriNotice
case INFO:
pri = journal.PriInfo
case DEBUG:
pri = journal.PriDebug
case TRACE:
pri = journal.PriDebug
default:
panic("Unhandled loglevel")
}
msg := fmt.Sprint(entries...)
tags := map[string]string{
"PACKAGE": pkg,
"SYSLOG_IDENTIFIER": filepath.Base(os.Args[0]),
}
err := journal.Send(msg, pri, tags)
if err != nil {
fmt.Fprintln(os.Stderr, err)
}
}
func (j *journaldFormatter) Flush() {}

39
vendor/github.com/coreos/pkg/capnslog/log_hijack.go generated vendored Normal file
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@ -0,0 +1,39 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import (
"log"
)
func initHijack() {
pkg := NewPackageLogger("log", "")
w := packageWriter{pkg}
log.SetFlags(0)
log.SetPrefix("")
log.SetOutput(w)
}
type packageWriter struct {
pl *PackageLogger
}
func (p packageWriter) Write(b []byte) (int, error) {
if p.pl.level < INFO {
return 0, nil
}
p.pl.internalLog(calldepth+2, INFO, string(b))
return len(b), nil
}

240
vendor/github.com/coreos/pkg/capnslog/logmap.go generated vendored Normal file
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@ -0,0 +1,240 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import (
"errors"
"strings"
"sync"
)
// LogLevel is the set of all log levels.
type LogLevel int8
const (
// CRITICAL is the lowest log level; only errors which will end the program will be propagated.
CRITICAL LogLevel = iota - 1
// ERROR is for errors that are not fatal but lead to troubling behavior.
ERROR
// WARNING is for errors which are not fatal and not errors, but are unusual. Often sourced from misconfigurations.
WARNING
// NOTICE is for normal but significant conditions.
NOTICE
// INFO is a log level for common, everyday log updates.
INFO
// DEBUG is the default hidden level for more verbose updates about internal processes.
DEBUG
// TRACE is for (potentially) call by call tracing of programs.
TRACE
)
// Char returns a single-character representation of the log level.
func (l LogLevel) Char() string {
switch l {
case CRITICAL:
return "C"
case ERROR:
return "E"
case WARNING:
return "W"
case NOTICE:
return "N"
case INFO:
return "I"
case DEBUG:
return "D"
case TRACE:
return "T"
default:
panic("Unhandled loglevel")
}
}
// String returns a multi-character representation of the log level.
func (l LogLevel) String() string {
switch l {
case CRITICAL:
return "CRITICAL"
case ERROR:
return "ERROR"
case WARNING:
return "WARNING"
case NOTICE:
return "NOTICE"
case INFO:
return "INFO"
case DEBUG:
return "DEBUG"
case TRACE:
return "TRACE"
default:
panic("Unhandled loglevel")
}
}
// Update using the given string value. Fulfills the flag.Value interface.
func (l *LogLevel) Set(s string) error {
value, err := ParseLevel(s)
if err != nil {
return err
}
*l = value
return nil
}
// ParseLevel translates some potential loglevel strings into their corresponding levels.
func ParseLevel(s string) (LogLevel, error) {
switch s {
case "CRITICAL", "C":
return CRITICAL, nil
case "ERROR", "0", "E":
return ERROR, nil
case "WARNING", "1", "W":
return WARNING, nil
case "NOTICE", "2", "N":
return NOTICE, nil
case "INFO", "3", "I":
return INFO, nil
case "DEBUG", "4", "D":
return DEBUG, nil
case "TRACE", "5", "T":
return TRACE, nil
}
return CRITICAL, errors.New("couldn't parse log level " + s)
}
type RepoLogger map[string]*PackageLogger
type loggerStruct struct {
sync.Mutex
repoMap map[string]RepoLogger
formatter Formatter
}
// logger is the global logger
var logger = new(loggerStruct)
// SetGlobalLogLevel sets the log level for all packages in all repositories
// registered with capnslog.
func SetGlobalLogLevel(l LogLevel) {
logger.Lock()
defer logger.Unlock()
for _, r := range logger.repoMap {
r.setRepoLogLevelInternal(l)
}
}
// GetRepoLogger may return the handle to the repository's set of packages' loggers.
func GetRepoLogger(repo string) (RepoLogger, error) {
logger.Lock()
defer logger.Unlock()
r, ok := logger.repoMap[repo]
if !ok {
return nil, errors.New("no packages registered for repo " + repo)
}
return r, nil
}
// MustRepoLogger returns the handle to the repository's packages' loggers.
func MustRepoLogger(repo string) RepoLogger {
r, err := GetRepoLogger(repo)
if err != nil {
panic(err)
}
return r
}
// SetRepoLogLevel sets the log level for all packages in the repository.
func (r RepoLogger) SetRepoLogLevel(l LogLevel) {
logger.Lock()
defer logger.Unlock()
r.setRepoLogLevelInternal(l)
}
func (r RepoLogger) setRepoLogLevelInternal(l LogLevel) {
for _, v := range r {
v.level = l
}
}
// ParseLogLevelConfig parses a comma-separated string of "package=loglevel", in
// order, and returns a map of the results, for use in SetLogLevel.
func (r RepoLogger) ParseLogLevelConfig(conf string) (map[string]LogLevel, error) {
setlist := strings.Split(conf, ",")
out := make(map[string]LogLevel)
for _, setstring := range setlist {
setting := strings.Split(setstring, "=")
if len(setting) != 2 {
return nil, errors.New("oddly structured `pkg=level` option: " + setstring)
}
l, err := ParseLevel(setting[1])
if err != nil {
return nil, err
}
out[setting[0]] = l
}
return out, nil
}
// SetLogLevel takes a map of package names within a repository to their desired
// loglevel, and sets the levels appropriately. Unknown packages are ignored.
// "*" is a special package name that corresponds to all packages, and will be
// processed first.
func (r RepoLogger) SetLogLevel(m map[string]LogLevel) {
logger.Lock()
defer logger.Unlock()
if l, ok := m["*"]; ok {
r.setRepoLogLevelInternal(l)
}
for k, v := range m {
l, ok := r[k]
if !ok {
continue
}
l.level = v
}
}
// SetFormatter sets the formatting function for all logs.
func SetFormatter(f Formatter) {
logger.Lock()
defer logger.Unlock()
logger.formatter = f
}
// NewPackageLogger creates a package logger object.
// This should be defined as a global var in your package, referencing your repo.
func NewPackageLogger(repo string, pkg string) (p *PackageLogger) {
logger.Lock()
defer logger.Unlock()
if logger.repoMap == nil {
logger.repoMap = make(map[string]RepoLogger)
}
r, rok := logger.repoMap[repo]
if !rok {
logger.repoMap[repo] = make(RepoLogger)
r = logger.repoMap[repo]
}
p, pok := r[pkg]
if !pok {
r[pkg] = &PackageLogger{
pkg: pkg,
level: INFO,
}
p = r[pkg]
}
return
}

158
vendor/github.com/coreos/pkg/capnslog/pkg_logger.go generated vendored Normal file
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// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package capnslog
import (
"fmt"
"os"
)
type PackageLogger struct {
pkg string
level LogLevel
}
const calldepth = 2
func (p *PackageLogger) internalLog(depth int, inLevel LogLevel, entries ...interface{}) {
if inLevel != CRITICAL && p.level < inLevel {
return
}
logger.Lock()
defer logger.Unlock()
if logger.formatter != nil {
logger.formatter.Format(p.pkg, inLevel, depth+1, entries...)
}
}
func (p *PackageLogger) LevelAt(l LogLevel) bool {
return p.level >= l
}
// Log a formatted string at any level between ERROR and TRACE
func (p *PackageLogger) Logf(l LogLevel, format string, args ...interface{}) {
p.internalLog(calldepth, l, fmt.Sprintf(format, args...))
}
// Log a message at any level between ERROR and TRACE
func (p *PackageLogger) Log(l LogLevel, args ...interface{}) {
p.internalLog(calldepth, l, fmt.Sprint(args...))
}
// log stdlib compatibility
func (p *PackageLogger) Println(args ...interface{}) {
p.internalLog(calldepth, INFO, fmt.Sprintln(args...))
}
func (p *PackageLogger) Printf(format string, args ...interface{}) {
p.internalLog(calldepth, INFO, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Print(args ...interface{}) {
p.internalLog(calldepth, INFO, fmt.Sprint(args...))
}
// Panic and fatal
func (p *PackageLogger) Panicf(format string, args ...interface{}) {
s := fmt.Sprintf(format, args...)
p.internalLog(calldepth, CRITICAL, s)
panic(s)
}
func (p *PackageLogger) Panic(args ...interface{}) {
s := fmt.Sprint(args...)
p.internalLog(calldepth, CRITICAL, s)
panic(s)
}
func (p *PackageLogger) Fatalf(format string, args ...interface{}) {
s := fmt.Sprintf(format, args...)
p.internalLog(calldepth, CRITICAL, s)
os.Exit(1)
}
func (p *PackageLogger) Fatal(args ...interface{}) {
s := fmt.Sprint(args...)
p.internalLog(calldepth, CRITICAL, s)
os.Exit(1)
}
// Error Functions
func (p *PackageLogger) Errorf(format string, args ...interface{}) {
p.internalLog(calldepth, ERROR, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Error(entries ...interface{}) {
p.internalLog(calldepth, ERROR, entries...)
}
// Warning Functions
func (p *PackageLogger) Warningf(format string, args ...interface{}) {
p.internalLog(calldepth, WARNING, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Warning(entries ...interface{}) {
p.internalLog(calldepth, WARNING, entries...)
}
// Notice Functions
func (p *PackageLogger) Noticef(format string, args ...interface{}) {
p.internalLog(calldepth, NOTICE, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Notice(entries ...interface{}) {
p.internalLog(calldepth, NOTICE, entries...)
}
// Info Functions
func (p *PackageLogger) Infof(format string, args ...interface{}) {
p.internalLog(calldepth, INFO, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Info(entries ...interface{}) {
p.internalLog(calldepth, INFO, entries...)
}
// Debug Functions
func (p *PackageLogger) Debugf(format string, args ...interface{}) {
p.internalLog(calldepth, DEBUG, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Debug(entries ...interface{}) {
p.internalLog(calldepth, DEBUG, entries...)
}
// Trace Functions
func (p *PackageLogger) Tracef(format string, args ...interface{}) {
p.internalLog(calldepth, TRACE, fmt.Sprintf(format, args...))
}
func (p *PackageLogger) Trace(entries ...interface{}) {
p.internalLog(calldepth, TRACE, entries...)
}
func (p *PackageLogger) Flush() {
logger.Lock()
defer logger.Unlock()
logger.formatter.Flush()
}

65
vendor/github.com/coreos/pkg/capnslog/syslog_formatter.go generated vendored Normal file
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@ -0,0 +1,65 @@
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// +build !windows
package capnslog
import (
"fmt"
"log/syslog"
)
func NewSyslogFormatter(w *syslog.Writer) Formatter {
return &syslogFormatter{w}
}
func NewDefaultSyslogFormatter(tag string) (Formatter, error) {
w, err := syslog.New(syslog.LOG_DEBUG, tag)
if err != nil {
return nil, err
}
return NewSyslogFormatter(w), nil
}
type syslogFormatter struct {
w *syslog.Writer
}
func (s *syslogFormatter) Format(pkg string, l LogLevel, _ int, entries ...interface{}) {
for _, entry := range entries {
str := fmt.Sprint(entry)
switch l {
case CRITICAL:
s.w.Crit(str)
case ERROR:
s.w.Err(str)
case WARNING:
s.w.Warning(str)
case NOTICE:
s.w.Notice(str)
case INFO:
s.w.Info(str)
case DEBUG:
s.w.Debug(str)
case TRACE:
s.w.Debug(str)
default:
panic("Unhandled loglevel")
}
}
}
func (s *syslogFormatter) Flush() {
}

127
vendor/github.com/coreos/pkg/health/health.go generated vendored Normal file
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@ -0,0 +1,127 @@
package health
import (
"expvar"
"fmt"
"log"
"net/http"
"github.com/coreos/pkg/httputil"
)
// Checkables should return nil when the thing they are checking is healthy, and an error otherwise.
type Checkable interface {
Healthy() error
}
// Checker provides a way to make an endpoint which can be probed for system health.
type Checker struct {
// Checks are the Checkables to be checked when probing.
Checks []Checkable
// Unhealthyhandler is called when one or more of the checks are unhealthy.
// If not provided DefaultUnhealthyHandler is called.
UnhealthyHandler UnhealthyHandler
// HealthyHandler is called when all checks are healthy.
// If not provided, DefaultHealthyHandler is called.
HealthyHandler http.HandlerFunc
}
func (c Checker) ServeHTTP(w http.ResponseWriter, r *http.Request) {
unhealthyHandler := c.UnhealthyHandler
if unhealthyHandler == nil {
unhealthyHandler = DefaultUnhealthyHandler
}
successHandler := c.HealthyHandler
if successHandler == nil {
successHandler = DefaultHealthyHandler
}
if r.Method != "GET" {
w.Header().Set("Allow", "GET")
w.WriteHeader(http.StatusMethodNotAllowed)
return
}
if err := Check(c.Checks); err != nil {
unhealthyHandler(w, r, err)
return
}
successHandler(w, r)
}
type UnhealthyHandler func(w http.ResponseWriter, r *http.Request, err error)
type StatusResponse struct {
Status string `json:"status"`
Details *StatusResponseDetails `json:"details,omitempty"`
}
type StatusResponseDetails struct {
Code int `json:"code,omitempty"`
Message string `json:"message,omitempty"`
}
func Check(checks []Checkable) (err error) {
errs := []error{}
for _, c := range checks {
if e := c.Healthy(); e != nil {
errs = append(errs, e)
}
}
switch len(errs) {
case 0:
err = nil
case 1:
err = errs[0]
default:
err = fmt.Errorf("multiple health check failure: %v", errs)
}
return
}
func DefaultHealthyHandler(w http.ResponseWriter, r *http.Request) {
err := httputil.WriteJSONResponse(w, http.StatusOK, StatusResponse{
Status: "ok",
})
if err != nil {
// TODO(bobbyrullo): replace with logging from new logging pkg,
// once it lands.
log.Printf("Failed to write JSON response: %v", err)
}
}
func DefaultUnhealthyHandler(w http.ResponseWriter, r *http.Request, err error) {
writeErr := httputil.WriteJSONResponse(w, http.StatusInternalServerError, StatusResponse{
Status: "error",
Details: &StatusResponseDetails{
Code: http.StatusInternalServerError,
Message: err.Error(),
},
})
if writeErr != nil {
// TODO(bobbyrullo): replace with logging from new logging pkg,
// once it lands.
log.Printf("Failed to write JSON response: %v", err)
}
}
// ExpvarHandler is copied from https://golang.org/src/expvar/expvar.go, where it's sadly unexported.
func ExpvarHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
fmt.Fprintf(w, "{\n")
first := true
expvar.Do(func(kv expvar.KeyValue) {
if !first {
fmt.Fprintf(w, ",\n")
}
first = false
fmt.Fprintf(w, "%q: %s", kv.Key, kv.Value)
})
fmt.Fprintf(w, "\n}\n")
}

21
vendor/github.com/coreos/pkg/httputil/cookie.go generated vendored Normal file
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@ -0,0 +1,21 @@
package httputil
import (
"net/http"
"time"
)
// DeleteCookies effectively deletes all named cookies
// by wiping all data and setting to expire immediately.
func DeleteCookies(w http.ResponseWriter, cookieNames ...string) {
for _, n := range cookieNames {
c := &http.Cookie{
Name: n,
Value: "",
Path: "/",
MaxAge: -1,
Expires: time.Time{},
}
http.SetCookie(w, c)
}
}

27
vendor/github.com/coreos/pkg/httputil/json.go generated vendored Normal file
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@ -0,0 +1,27 @@
package httputil
import (
"encoding/json"
"net/http"
)
const (
JSONContentType = "application/json"
)
func WriteJSONResponse(w http.ResponseWriter, code int, resp interface{}) error {
enc, err := json.Marshal(resp)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return err
}
w.Header().Set("Content-Type", JSONContentType)
w.WriteHeader(code)
_, err = w.Write(enc)
if err != nil {
return err
}
return nil
}

15
vendor/github.com/coreos/pkg/timeutil/backoff.go generated vendored Normal file
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@ -0,0 +1,15 @@
package timeutil
import (
"time"
)
func ExpBackoff(prev, max time.Duration) time.Duration {
if prev == 0 {
return time.Second
}
if prev > max/2 {
return max
}
return 2 * prev
}