Add a new hash version for the file viewer

.gitignore

@@ -12,3 +12,4 @@ www/scratch
 data
 npm-debug.log
 pins/
+blob/

server.js

@@ -82,6 +82,8 @@ var mainPages = config.mainPages || ['index', 'privacy', 'terms', 'about', 'cont
 var mainPagePattern = new RegExp('^\/(' + mainPages.join('|') + ').html$');
 app.get(mainPagePattern, Express.static(__dirname + '/customize.dist'));
 
+app.use("/blob", Express.static(__dirname + '/blob'));
+
 app.use("/customize", Express.static(__dirname + '/customize'));
 app.use("/customize", Express.static(__dirname + '/customize.dist'));
 app.use(/^\/[^\/]*$/, Express.static('customize'));

www/common/common-hash.js

@@ -23,13 +23,16 @@ define([
             return chanKey + keys;
         }
         if (!keys.editKeyStr) { return; }
-        return '/1/edit/' + hexToBase64(chanKey) + '/' + Crypto.b64RemoveSlashes(keys.editKeyStr);
+        return '/1/edit/' + hexToBase64(chanKey) + '/'+Crypto.b64RemoveSlashes(keys.editKeyStr)+'/';
     };
     var getViewHashFromKeys = Hash.getViewHashFromKeys = function (chanKey, keys) {
         if (typeof keys === 'string') {
             return;
         }
-        return '/1/view/' + hexToBase64(chanKey) + '/' + Crypto.b64RemoveSlashes(keys.viewKeyStr);
+        return '/1/view/' + hexToBase64(chanKey) + '/'+Crypto.b64RemoveSlashes(keys.viewKeyStr)+'/';
+    };
+    var getFileHashFromKey = Hash.getFileHashFromKey = function (fileKey, cryptKey, type) {
+        return '/2/' + hexToBase64(fileKey) + '/' + Crypto.b64RemoveSlashes(cryptKey) + '/' + Crypto.base64RemoveSlashes(type);
     };
 
     var parsePadUrl = Hash.parsePadUrl = function (href) {
@@ -119,7 +122,9 @@ define([
                     }
                 } else if (version === "2") {
                     // version 2 hashes are to be used for encrypted blobs
-                    // TODO
+                    var fileId = secret.file = hashArray[2].replace(/-/g, '/');
+                    var key = secret.key = hashArray[3].replace(/-/g, '/');
+                    var type = secret.type = hashArray[4].replace(/-/g, '/');
                 }
             }
         }
@@ -150,7 +155,7 @@ define([
         var channelId = Util.hexToBase64(createChannelId());
         // 18 byte encryption key
         var key = Crypto.b64RemoveSlashes(Crypto.rand64(18));
-        return '/1/edit/' + [channelId, key].join('/');
+        return '/1/edit/' + [channelId, key].join('/') + '/';
     };
 
 /*
@@ -159,8 +164,8 @@ Version 0
 Version 1
     /code/#/1/edit/3Ujt4F2Sjnjbis6CoYWpoQ/usn4+9CqVja8Q7RZOGTfRgqI
 Version 2
-    /file/<fileId>/#/2/<cryptKey>/<contentType>
-    /file/<fileId>/#/2/ajExFODrFH4lVBwxxsrOKw/pdf
+    /file/#/2/<fileId>/<cryptKey>/<contentType>
+    /file/#/2/K6xWU-LT9BJHCQcDCT-DcQ/ajExFODrFH4lVBwxxsrOKw/image-png
 */
     var parseHash = Hash.parseHash = function (hash) {
         var parsed = {};
@@ -177,7 +182,14 @@ Version 2
             parsed.mode = hashArr[2];
             parsed.channel = hashArr[3];
             parsed.key = hashArr[4];
-            parsed.present = hashArr[5] && hashArr[5] === 'present';
+            parsed.present = typeof(hashArr[5]) === "string" && hashArr[5] === 'present';
+            return parsed;
+        }
+        if (hashArr[1] && hashArr[1] === '2') {
+            parsed.version = 2;
+            parsed.file = hashArr[2].replace(/-/g, '/');
+            parsed.key = hashArr[3].replace(/-/g, '/');
+            parsed.type = hashArr[4].replace(/-/g, '/');
             return parsed;
         }
         return;

www/common/cryptpad-common.js

@@ -514,7 +514,7 @@ define([
 
                 if (p.type !== parsed.type) { return pad; }
 
-                var shouldUpdate = p.hash === parsed.hash;
+                var shouldUpdate = p.hash.replace(/\/$/, '') === parsed.hash.replace(/\/$/, '');
 
                 // Version 1 : we have up to 4 differents hash for 1 pad, keep the strongest :
                 // Edit > Edit (present) > View > View (present)

www/examples/file/main.js

@@ -20,25 +20,30 @@ define([
     var andThen = function () {
         var $bar = $iframe.find('.toolbar-container');
         var secret = Cryptpad.getSecrets();
-        var readOnly = secret.keys && !secret.keys.editKeyStr;
-        if (!secret.keys) {
-            secret.keys = secret.key;
-        }
+
+        if (secret.keys) { throw new Error("You need a hash"); } // TODO
+
+        var cryptKey = secret.key;
+        var fileId = secret.file;
+        var hexFileName = Cryptpad.base64ToHex(fileId);
+        var type = secret.type;
+
+// Test hash:
+// #/2/K6xWU-LT9BJHCQcDCT-DcQ/TBo77200c0e-FdldQFcnQx4Y/image-png
 
         var $mt = $iframe.find('#encryptedFile');
-        $mt.attr('src', './assets/image.png-encrypted');
-        $mt.attr('data-crypto-key', 'TBo77200c0e/FdldQFcnQx4Y');
-        $mt.attr('data-type', 'image/png');
+        $mt.attr('src', '/blob/' + hexFileName.slice(0,2) + '/' + hexFileName);
+        $mt.attr('data-crypto-key', cryptKey);
+        $mt.attr('data-type', type);
         require(['/common/media-tag.js'], function (MediaTag) {
             MediaTag($mt[0]);
             Cryptpad.removeLoadingScreen();
-                var configTb = {
-                    displayed: ['useradmin', 'newpad'],
-                    ifrw: ifrw,
-                    common: Cryptpad
-                };
-                toolbar = Toolbar.create($bar, null, null, null, null, configTb);
-
+            var configTb = {
+                displayed: ['useradmin', 'newpad'],
+                ifrw: ifrw,
+                common: Cryptpad
+            };
+            Toolbar.create($bar, null, null, null, null, configTb);
         });
 
     };