add preparation for disqus oauth2

app/main.go

@@ -43,6 +43,8 @@ var opts struct {
 		GithubCSEC   string `long:"github-csec" env:"REMARK_GITHUB_CSEC" description:"Github OAuth client secret"`
 		FacebookCID  string `long:"facebook-cid" env:"REMARK_FACEBOOK_CID" description:"Facebook OAuth client ID"`
 		FacebookCSEC string `long:"facebook-csec" env:"REMARK_FACEBOOK_CSEC" description:"Facebook OAuth client secret"`
+		DisqusCID    string `long:"disqus-cid" env:"REMARK_DISQUS_CID" description:"Disqus OAuth client ID"`
+		DisqusCSEC   string `long:"disqus-csec" env:"REMARK_DISQUS_CSEC" description:"Disqus OAuth client secret"`
 
 		AvatarStore   string `long:"avatars" env:"AVATAR_STORE" default:"./var/avatars" description:"path to avatars directory"`
 		DefaultAvatar string `long:"avatar-def" env:"AVATAR_DEF" default:"remark.image" description:"default avatar"`
@@ -210,6 +212,9 @@ func makeAuthProviders(sessionStore sessions.Store, avatarProxy *auth.AvatarProx
 	if srvOpts.FacebookCID != "" && srvOpts.FacebookCSEC != "" {
 		providers = append(providers, auth.NewFacebook(makeParams(srvOpts.FacebookCID, srvOpts.FacebookCSEC)))
 	}
+	if srvOpts.DisqusCID != "" && srvOpts.DisqusCSEC != "" {
+		providers = append(providers, auth.NewDisqus(makeParams(srvOpts.DisqusCID, srvOpts.DisqusCSEC)))
+	}
 	if len(providers) == 0 {
 		log.Printf("[WARN] no auth providers defined")
 	}

app/rest/auth/providers.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"strings"
 
+	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/facebook"
 	"golang.org/x/oauth2/github"
 	"golang.org/x/oauth2/google"
@@ -98,3 +99,30 @@ func NewFacebook(p Params) Provider {
 		},
 	})
 }
+
+// NewDisqus makes disqus oauth2 provider. TODO: WIP - seems to need client_id param
+func NewDisqus(p Params) Provider {
+	return initProvider(p, Provider{
+		Name: "disqus",
+		Endpoint: oauth2.Endpoint{
+			AuthURL:  "https://disqus.com/api/oauth/2.0/authorize/",
+			TokenURL: "https://disqus.com/api/oauth/2.0/access_token/",
+		},
+		RedirectURL: p.RemarkURL + "/auth/disqus/callback",
+		Scopes:      []string{"read"},
+		InfoURL:     "https://disqus.com/api/3.0/users/details.json",
+		Store:       p.SessionStore,
+		MapUser: func(data userData, _ []byte) store.User {
+			userInfo := store.User{
+				ID:      "disqus_" + data.value("login"),
+				Name:    data.value("name"),
+				Picture: data.value("avatar_url"),
+				Profile: data.value("html_url"),
+			}
+			if userInfo.Name == "" {
+				userInfo.Name = userInfo.ID
+			}
+			return userInfo
+		},
+	})
+}

docker-compose.yml

@@ -15,15 +15,16 @@ services:
               max-file: "5"
 
         # uncomment to expose directly (no proxy)
-        # ports:
-        #   - "8080:8080"
+        ports:
+          - "80:8080"
 
         environment:
-            - REMARK_URL=https://demo.remark42.com
+            # - REMARK_URL=https://demo.remark42.com
+            - REMARK_URL
             - BOLTDB_PATH=/srv/var/db
             - BACKUP_PATH=/srv/var/backup
             - SESSION_STORE=/srv/var/session
-            - DEV_PASSWD=password # development mode, be careful!
+            # - DEV_PASSWD=password # development mode, be careful!
             - DEBUG=true
             - REMARK_GOOGLE_CID
             - REMARK_GOOGLE_CSEC
@@ -31,6 +32,8 @@ services:
             - REMARK_GITHUB_CSEC
             - REMARK_FACEBOOK_CID
             - REMARK_FACEBOOK_CSEC
+            - REMARK_DISQUS_CID
+            - REMARK_DISQUS_CSEC
         volumes:
             - ./var:/srv/var
             - ./web:/srv/web # maps web directory directly to propagate local changes to container without redeploy