Update Lego

vendor/github.com/xenolf/lego/providers/dns/bluecat/client.go

@@ -1,5 +1,16 @@
 package bluecat
 
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
 // JSON body for Bluecat entity requests and responses
 type bluecatEntity struct {
 	ID         string `json:"id,omitempty"`
@@ -14,3 +25,225 @@ type entityResponse struct {
 	Type       string `json:"type"`
 	Properties string `json:"properties"`
 }
+
+// Starts a new Bluecat API Session. Authenticates using customerName, userName,
+// password and receives a token to be used in for subsequent requests.
+func (d *DNSProvider) login() error {
+	queryArgs := map[string]string{
+		"username": d.config.UserName,
+		"password": d.config.Password,
+	}
+
+	resp, err := d.sendRequest(http.MethodGet, "login", nil, queryArgs)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	authBytes, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("bluecat: %v", err)
+	}
+	authResp := string(authBytes)
+
+	if strings.Contains(authResp, "Authentication Error") {
+		msg := strings.Trim(authResp, "\"")
+		return fmt.Errorf("bluecat: request failed: %s", msg)
+	}
+
+	// Upon success, API responds with "Session Token-> BAMAuthToken: dQfuRMTUxNjc3MjcyNDg1ODppcGFybXM= <- for User : username"
+	d.token = regexp.MustCompile("BAMAuthToken: [^ ]+").FindString(authResp)
+	return nil
+}
+
+// Destroys Bluecat Session
+func (d *DNSProvider) logout() error {
+	if len(d.token) == 0 {
+		// nothing to do
+		return nil
+	}
+
+	resp, err := d.sendRequest(http.MethodGet, "logout", nil, nil)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("bluecat: request failed to delete session with HTTP status code %d", resp.StatusCode)
+	}
+
+	authBytes, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	authResp := string(authBytes)
+
+	if !strings.Contains(authResp, "successfully") {
+		msg := strings.Trim(authResp, "\"")
+		return fmt.Errorf("bluecat: request failed to delete session: %s", msg)
+	}
+
+	d.token = ""
+
+	return nil
+}
+
+// Lookup the entity ID of the configuration named in our properties
+func (d *DNSProvider) lookupConfID() (uint, error) {
+	queryArgs := map[string]string{
+		"parentId": strconv.Itoa(0),
+		"name":     d.config.ConfigName,
+		"type":     configType,
+	}
+
+	resp, err := d.sendRequest(http.MethodGet, "getEntityByName", nil, queryArgs)
+	if err != nil {
+		return 0, err
+	}
+	defer resp.Body.Close()
+
+	var conf entityResponse
+	err = json.NewDecoder(resp.Body).Decode(&conf)
+	if err != nil {
+		return 0, fmt.Errorf("bluecat: %v", err)
+	}
+	return conf.ID, nil
+}
+
+// Find the DNS view with the given name within
+func (d *DNSProvider) lookupViewID(viewName string) (uint, error) {
+	confID, err := d.lookupConfID()
+	if err != nil {
+		return 0, err
+	}
+
+	queryArgs := map[string]string{
+		"parentId": strconv.FormatUint(uint64(confID), 10),
+		"name":     viewName,
+		"type":     viewType,
+	}
+
+	resp, err := d.sendRequest(http.MethodGet, "getEntityByName", nil, queryArgs)
+	if err != nil {
+		return 0, err
+	}
+	defer resp.Body.Close()
+
+	var view entityResponse
+	err = json.NewDecoder(resp.Body).Decode(&view)
+	if err != nil {
+		return 0, fmt.Errorf("bluecat: %v", err)
+	}
+
+	return view.ID, nil
+}
+
+// Return the entityId of the parent zone by recursing from the root view
+// Also return the simple name of the host
+func (d *DNSProvider) lookupParentZoneID(viewID uint, fqdn string) (uint, string, error) {
+	parentViewID := viewID
+	name := ""
+
+	if fqdn != "" {
+		zones := strings.Split(strings.Trim(fqdn, "."), ".")
+		last := len(zones) - 1
+		name = zones[0]
+
+		for i := last; i > -1; i-- {
+			zoneID, err := d.getZone(parentViewID, zones[i])
+			if err != nil || zoneID == 0 {
+				return parentViewID, name, err
+			}
+			if i > 0 {
+				name = strings.Join(zones[0:i], ".")
+			}
+			parentViewID = zoneID
+		}
+	}
+
+	return parentViewID, name, nil
+}
+
+// Get the DNS zone with the specified name under the parentId
+func (d *DNSProvider) getZone(parentID uint, name string) (uint, error) {
+	queryArgs := map[string]string{
+		"parentId": strconv.FormatUint(uint64(parentID), 10),
+		"name":     name,
+		"type":     zoneType,
+	}
+
+	resp, err := d.sendRequest(http.MethodGet, "getEntityByName", nil, queryArgs)
+
+	// Return an empty zone if the named zone doesn't exist
+	if resp != nil && resp.StatusCode == http.StatusNotFound {
+		return 0, fmt.Errorf("bluecat: could not find zone named %s", name)
+	}
+	if err != nil {
+		return 0, err
+	}
+	defer resp.Body.Close()
+
+	var zone entityResponse
+	err = json.NewDecoder(resp.Body).Decode(&zone)
+	if err != nil {
+		return 0, fmt.Errorf("bluecat: %v", err)
+	}
+
+	return zone.ID, nil
+}
+
+// Deploy the DNS config for the specified entity to the authoritative servers
+func (d *DNSProvider) deploy(entityID uint) error {
+	queryArgs := map[string]string{
+		"entityId": strconv.FormatUint(uint64(entityID), 10),
+	}
+
+	resp, err := d.sendRequest(http.MethodPost, "quickDeploy", nil, queryArgs)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	return nil
+}
+
+// Send a REST request, using query parameters specified. The Authorization
+// header will be set if we have an active auth token
+func (d *DNSProvider) sendRequest(method, resource string, payload interface{}, queryArgs map[string]string) (*http.Response, error) {
+	url := fmt.Sprintf("%s/Services/REST/v1/%s", d.config.BaseURL, resource)
+
+	body, err := json.Marshal(payload)
+	if err != nil {
+		return nil, fmt.Errorf("bluecat: %v", err)
+	}
+
+	req, err := http.NewRequest(method, url, bytes.NewReader(body))
+	if err != nil {
+		return nil, fmt.Errorf("bluecat: %v", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+	if len(d.token) > 0 {
+		req.Header.Set("Authorization", d.token)
+	}
+
+	// Add all query parameters
+	q := req.URL.Query()
+	for argName, argVal := range queryArgs {
+		q.Add(argName, argVal)
+	}
+	req.URL.RawQuery = q.Encode()
+	resp, err := d.config.HTTPClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("bluecat: %v", err)
+	}
+
+	if resp.StatusCode >= 400 {
+		errBytes, _ := ioutil.ReadAll(resp.Body)
+		errResp := string(errBytes)
+		return nil, fmt.Errorf("bluecat: request failed with HTTP status code %d\n Full message: %s",
+			resp.StatusCode, errResp)
+	}
+
+	return resp, nil
+}