Ability to open an anonymous read only shared folder

www/common/cryptpad-common.js

@@ -1494,6 +1494,7 @@ define([
                 noWorker = localStorage.CryptPad_noWorkers === '1';
                 console.error('WebWorker/SharedWorker state forced to ' + !noWorker);
             }
+            noWorker = true;
             Nthen(function (waitFor2) {
                 if (Worker) {
                     var w = waitFor2();

www/common/drive-ui.js

@@ -1154,9 +1154,12 @@ define([
                             hide.push('openro'); // Remove open 'view' mode
                         }
                         // if it's not a plain text file
-                        var metadata = manager.getFileData(manager.find(path));
-                        if (!metadata || !Util.isPlainTextFile(metadata.fileType, metadata.title)) {
-                            hide.push('openincode');
+                        // XXX: there is a bug with this code in anon shared folder, so we disable it
+                        if (APP.loggedIn || !APP.newSharedFolder) {
+                            var metadata = manager.getFileData(manager.find(path));
+                            if (!metadata || !Util.isPlainTextFile(metadata.fileType, metadata.title)) {
+                                hide.push('openincode');
+                            }
                         }
                     } else if ($element.is('.cp-app-drive-element-sharedf')) {
                         if (containsFolder) {

www/common/outer/sharedfolder.js

@@ -68,7 +68,7 @@ define([
         var listmapConfig = {
             data: {},
             channel: secret.channel,
-            readOnly: false,
+            readOnly: secret.keys && !secret.keys.editKeyStr,
             crypto: Crypto.createEncryptor(secret.keys),
             userName: 'sharedFolder',
             logLevel: 1,

www/common/outer/userObject.js

@@ -687,6 +687,12 @@ define([
                         href = el.href && ((el.href.indexOf('#') !== -1) ? el.href : exp.cryptor.decrypt(el.href));
                     } catch (e) {}
 
+                    if (href && href.indexOf('#') === -1) {
+                        // If we can't decrypt the href, it means we don't have the correct secondaryKey and we're in readOnly mode:
+                        // abort now, we won't be able to fix anything anyway
+                        continue;
+                    }
+
                     var parsed = Hash.parsePadUrl(href || el.roHref);
                     var secret;
 

www/common/proxy-manager.js

@@ -164,7 +164,7 @@ define([
         var data = {};
         userObjects.some(function (uo) {
             data = uo.getFileData(id, editable);
-            if (Object.keys(data).length) { return true; }
+            if (data && Object.keys(data).length) { return true; }
         });
         return data;
     };

www/common/userObject.js

@@ -114,10 +114,16 @@ define([
 
         var getHref = exp.getHref = function (pad) {
             if (pad.href && pad.href.indexOf('#') !== -1) {
+                // Href exists and is not encrypted: return href
                 return pad.href;
             }
             if (pad.href) {
-                return exp.cryptor.decrypt(pad.href);
+                // Href exists and is encrypted
+                var d = exp.cryptor.decrypt(pad.href);
+                // If we can decrypt, return the decrypted value, otherwise continue and return roHref
+                if (d.indexOf('#') !== -1) {
+                    return d;
+                }
             }
             return pad.roHref;
         };