Enable spreadsheets for anonymous users

www/common/application_config_internal.js

@@ -20,7 +20,7 @@ define(function() {
      * users and these users will be redirected to the login page if they still try to access
      * the app
      */
-    config.registeredOnlyTypes = ['file', 'contacts', 'oodoc', 'ooslide', 'sheet', 'notifications'];
+    config.registeredOnlyTypes = ['file', 'contacts', 'oodoc', 'ooslide', 'notifications'];
 
     /* CryptPad is available is multiple languages, but only English and French are maintained
      * by the developers. The other languages may be outdated, and any missing string for a langauge

www/common/onlyoffice/inner.js

@@ -584,7 +584,9 @@ define([
                 ooChannel.cpIndex++;
                 ooChannel.lastHash = hash;
                 // Check if a checkpoint is needed
-                if (ooChannel.cpIndex % CHECKPOINT_INTERVAL === 0) {
+                var lastCp = getLastCp();
+                if (common.isLoggedIn() && (ooChannel.cpIndex % CHECKPOINT_INTERVAL === 0 ||
+                            (ooChannel.cpIndex - lastCp.index) > CHECKPOINT_INTERVAL)) {
                     makeCheckpoint();
                 }
                 // Remove my lock
@@ -662,7 +664,7 @@ define([
         var startOO = function (blob, file) {
             if (APP.ooconfig) { return void console.error('already started'); }
             var url = URL.createObjectURL(blob);
-            var lock = readOnly || !common.isLoggedIn();
+            var lock = readOnly;// || !common.isLoggedIn();
 
             // Config
             APP.ooconfig = {