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Vendor main dependencies.

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This commit is contained in:
Timo Reimann 2017-02-07 22:33:23 +01:00
parent 49a09ab7dd
commit dd5e3fba01
2738 changed files with 1045689 additions and 0 deletions
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vendor/github.com/coreos/go-oidc/oidc/client.go generated vendored Normal file
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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
}