[NEW] User avatars from external source (#7929)

packages/rocketchat-i18n/i18n/en.i18n.json

@@ -43,6 +43,8 @@
   "Accounts_AvatarCacheTime_description": "Number of seconds the http protocol is told to cache the avatar images.",
   "Accounts_AvatarResize": "Resize Avatars",
   "Accounts_AvatarSize": "Avatar Size",
+  "Accounts_AvatarExternalProviderUrl": "Avatar External Provider URL",
+  "Accounts_AvatarExternalProviderUrl_Description": "Example: `https://acme.com/api/v1/{username}`",
   "Accounts_BlockedDomainsList": "Blocked Domains List",
   "Accounts_BlockedDomainsList_Description": "Comma-separated list of blocked domains",
   "Accounts_BlockedUsernameList": "Blocked Username List",

packages/rocketchat-lib/server/startup/settings.js

@@ -468,6 +468,12 @@ RocketChat.settings.addGroup('Accounts', function() {
 				value: true,
 			},
 		});
+
+		this.add('Accounts_AvatarExternalProviderUrl', '', {
+			type: 'string',
+			public: true,
+		});
+
 		this.add('Accounts_AvatarCacheTime', 3600, {
 			type: 'int',
 			i18nDescription: 'Accounts_AvatarCacheTime_description',

packages/rocketchat-utils/lib/getAvatarUrlFromUsername.js

@@ -2,6 +2,10 @@ import { Session } from 'meteor/session';
 import { settings } from 'meteor/rocketchat:settings';
 
 export const getAvatarUrlFromUsername = function(username) {
+	const externalSource = (settings.get('Accounts_AvatarExternalProviderUrl') || '').trim().replace(/\/$/, '');
+	if (externalSource !== '') {
+		return externalSource.replace('{username}', username);
+	}
 	const key = `avatar_random_${ username }`;
 	const random = typeof Session !== 'undefined' && typeof Session.keys[key] !== 'undefined' ? Session.keys[key] : 0;
 	if (username == null) {