Fix join team for anon users

www/common/cryptpad-common.js

@@ -779,6 +779,11 @@ define([
         postMessage("SEND_FRIEND_REQUEST", data, cb);
     };
 
+    // Team
+    common.anonGetPreviewContent = function (data, cb) {
+        postMessage("ANON_GET_PREVIEW_CONTENT", data, cb);
+    };
+
     // Onlyoffice
     var onlyoffice = common.onlyoffice = {};
     onlyoffice.execCommand = function (data, cb) {

www/common/outer/async-store.js

@@ -1273,6 +1273,12 @@ define([
             });
         };
 
+        Store.anonGetPreviewContent = function (clientId, data, cb) {
+            Team.anonGetPreviewContent({
+                store: store
+            }, data, cb);
+        };
+
         // Get hashes for the share button
         // If we can find a stronger hash
         Store.getStrongerHash = function (clientId, data, _cb) {

www/common/outer/store-rpc.js

@@ -60,6 +60,8 @@ define([
             // Messaging
             ANSWER_FRIEND_REQUEST: Store.answerFriendRequest,
             SEND_FRIEND_REQUEST: Store.sendFriendRequest,
+            // Team invitation
+            ANON_GET_PREVIEW_CONTENT: Store.anonGetPreviewContent,
             // OnlyOffice
             OO_COMMAND: Store.onlyoffice.execCommand,
             // Cursor

www/common/outer/team.js

@@ -1684,6 +1684,10 @@ define([
         return team;
     };
 
+    Team.anonGetPreviewContent = function (cfg, data, cb) {
+        getPreviewContent(cfg, data, null, cb);
+    };
+
     return Team;
 });
 

www/common/sframe-common-outer.js

@@ -675,6 +675,10 @@ define([
                 Cryptpad.messaging.answerFriendRequest(data, cb);
             });
 
+            sframeChan.on('Q_ANON_GET_PREVIEW_CONTENT', function (data, cb) {
+                Cryptpad.anonGetPreviewContent(data, cb);
+            });
+
             // History
             sframeChan.on('Q_GET_FULL_HISTORY', function (data, cb) {
                 var crypto = Crypto.createEncryptor(secret.keys);

www/teams/inner.js

@@ -1149,8 +1149,18 @@ define([
         };
 
         nThen(function (waitFor) {
-            // XXX XXX Check number of teams first!
+            // Get preview content.
-            APP.module.execCommand("GET_PREVIEW_CONTENT", {
+            // Use the team module if we're logged in, or sframeChan if we're not
+            var f = function (data, cb) {
+                if (driveAPP.loggedIn) {
+                    return void APP.module.execCommand('GET_PREVIEW_CONTENT', data, cb);
+                }
+                var sframeChan = common.getSframeChannel();
+                sframeChan.query('Q_ANON_GET_PREVIEW_CONTENT', data, function (err, json) {
+                    cb(json);
+                });
+            };
+            f({
                 seeds: seeds,
             }, waitFor(function (json) {
                 if (json && json.error) { // XXX this is failing with "team is disabled"