Add support for generic OAuth2 providers

Signed-off-by: Pedro Ferreira <pedro.ferreira@cern.ch>

lib/config/default.js

@@ -72,6 +72,12 @@ module.exports = {
   },
   s3bucket: undefined,
   // authentication
+  oauth2: {
+    authorizationURL: undefined,
+    tokenURL: undefined,
+    clientID: undefined,
+    clientSecret: undefined
+  },
   facebook: {
     clientID: undefined,
     clientSecret: undefined

lib/config/environment.js

@@ -66,6 +66,17 @@ module.exports = {
     clientID: process.env.HMD_MATTERMOST_CLIENTID,
     clientSecret: process.env.HMD_MATTERMOST_CLIENTSECRET
   },
+  oauth2: {
+    baseURL: process.env.HMD_OAUTH2_BASEURL,
+    userProfileURL: process.env.HMD_OAUTH2_USER_PROFILE_URL,
+    userProfileUsernameAttr: process.env.HMD_OAUTH2_USER_PROFILE_USERNAME_ATTR,
+    userProfileDisplayNameAttr: process.env.HMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR,
+    userProfileEmailAttr: process.env.HMD_OAUTH2_USER_PROFILE_EMAIL_ATTR,
+    tokenURL: process.env.HMD_OAUTH2_TOKEN_URL,
+    authorizationURL: process.env.HMD_OAUTH2_AUTHORIZATION_URL,
+    clientID: process.env.HMD_OAUTH2_CLIENT_ID,
+    clientSecret: process.env.HMD_OAUTH2_CLIENT_SECRET
+  },
   dropbox: {
     clientID: process.env.HMD_DROPBOX_CLIENTID,
     clientSecret: process.env.HMD_DROPBOX_CLIENTSECRET,

lib/config/index.js

@@ -98,6 +98,7 @@ config.isGitLabEnable = config.gitlab.clientID && config.gitlab.clientSecret
 config.isMattermostEnable = config.mattermost.clientID && config.mattermost.clientSecret
 config.isLDAPEnable = config.ldap.url
 config.isSAMLEnable = config.saml.idpSsoUrl
+config.isOAuth2Enable = config.oauth2.clientID && config.oauth2.clientSecret
 config.isPDFExportEnable = config.allowPDFExport
 
 // merge legacy values