Ability to import local pads in the user object

www/common/mergeDrive.js

@@ -0,0 +1,101 @@
+require.config({ paths: { 'json.sortify': '/bower_components/json.sortify/dist/JSON.sortify' } });
+define([
+    '/common/cryptpad-common.js',
+    '/common/cryptget.js',
+    'json.sortify'
+], function (Cryptpad, Crypt, Sortify) {
+    var exp = {};
+
+    var getType = function (el) {
+        if (el === null) { return "null"; }
+        return Array.isArray(el) ? "array" : typeof(el);
+    };
+
+    var findAvailableKey = function (obj, key) {
+        if (typeof (obj[key]) === "undefined") { return key; }
+        var i = 1;
+        var nkey = key;
+        while (typeof (obj[nkey]) !== "undefined") {
+            nkey = key + '_' + i;
+        }
+        return nkey;
+    };
+
+    var copy = function (el) {
+        if (typeof (el) !== "object") { return el; }
+        return JSON.parse(JSON.stringify(el));
+    };
+
+    var deduplicate = function (array) {
+        var a = array.slice();
+        for(var i=0; i<a.length; i++) {
+            for(var j=i+1; j<a.length; j++) {
+                if(a[i] === a[j] || (
+                    typeof(a[i]) === "object" && Sortify(a[i]) === Sortify(a[j])))
+                    a.splice(j--, 1);
+            }
+        }
+        return a;
+    };
+
+    // Merge obj2 into obj1
+    // If keepOld is true, obj1 values are kept in case of conflict in the ROOT object
+    var merge = function (obj1, obj2, keepOld) {
+        if (typeof (obj1) !== "object" || typeof (obj2) !== "object") { return; };
+        Object.keys(obj2).forEach(function (k) {
+            var v = obj2[k];
+            // If one of them is not an object or if we have a map and a array, don't override, create a new key
+            if (!obj1[k] || typeof(obj1[k]) !== "object" || typeof(obj2[k]) !== "object" ||
+                    (getType(obj1[k]) !== getType(obj2[k]))) {
+                // We don't want to override the values in the object (username, preferences)
+                // These values should be the ones stored in the first object
+                if (keepOld) { return; }
+                if (obj1[k] === obj2[k]) { return; }
+                var nkey = findAvailableKey(obj1, k);
+                obj1[nkey] = copy(obj2[k]);
+                return;
+            }
+            // Else, they're both maps or both arrays
+            if (getType(obj1[k]) === "array" && getType(obj2[k]) === "array") {
+                // CryptPad_RECENTPADS
+                if (k === 'CryptPad_RECENTPADS') {
+                    var old = obj1[k];
+                    obj2[k].forEach(function (pad) {
+                        if (!old.some(function (op) {
+                            // TODO read-only links
+                            return op.href === pad.href;
+                        })) {
+                            old.push(pad);
+                        }
+                    });
+                    return;
+                }
+                var c = obj1[k].concat(obj2[k]);
+                obj1[k] = deduplicate(c);
+                return;
+            }
+            merge(obj1[k], obj2[k]);
+        });
+    };
+
+    var mergeAnonDrive = exp.anonDriveIntoUser = function (proxy, cb) {
+        // Make sure we have an FS_hash and we don't use it, otherwise just stop the migration and cb
+        if (!localStorage.FS_hash || !Cryptpad.isLoggedIn()) {
+            delete sessionStorage.migrateAnonDrive;
+            if (typeof(cb) === "function") { cb(); }
+        }
+        // Get the content of FS_hash and then merge the objects, remove the migration key and cb
+        var todo = function (err, doc) {
+            if (err) { logError("Cannot migrate recent pads", err); return; }
+            var parsed;
+            try { parsed = JSON.parse(doc); } catch (e) { logError("Cannot parsed recent pads", e); }
+            if (parsed) {
+                merge(proxy, parsed, true);
+            }
+            if (typeof(cb) === "function") { cb(); }
+        };
+        Crypt.get(localStorage.FS_hash, todo);
+    };
+
+    return exp;
+});

www/drive/main.js

@@ -8,8 +8,9 @@ define([
     '/common/fileObject.js',
     '/common/toolbar.js',
     '/customize/application_config.js',
-    '/common/cryptget.js'
-], function (Listmap, Crypto, TextPatcher, JSONSortify, Cryptpad, FO, Toolbar, AppConfig, Get) {
+    '/common/cryptget.js',
+    '/common/mergeDrive.js'
+], function (Listmap, Crypto, TextPatcher, JSONSortify, Cryptpad, FO, Toolbar, AppConfig, Get, Merge) {
     var module = window.MODULE = {};
 
     var Messages = Cryptpad.Messages;
@@ -2056,26 +2057,12 @@ define([
         });
     };
 
-    // TODO: move that function and use a more generic API?
     var migrateAnonDrive = function (proxy, cb) {
         if (sessionStorage.migrateAnonDrive) {
-            // Make sure we have an FS_hash and we don't use it, otherwise just stop the migration and cb
-            if (!localStorage.FS_hash || !APP.loggedIn) {
+            Merge.anonDriveIntoUser(proxy, function () {
                 delete sessionStorage.migrateAnonDrive;
                 if (typeof(cb) === "function") { cb(); }
-            }
-            // Get the content of FS_hash and then merge the objects, remove the migration key and cb
-            var todo = function (err, doc) {
-                if (err) { logError("Cannot migrate recent pads", err); return; }
-                var parsed;
-                try { parsed = JSON.parse(doc); } catch (e) { logError("Cannot parsed recent pads", e); }
-                if (parsed) {
-                    $.extend(true, proxy, parsed);
-                }
-                delete sessionStorage.migrateAnonDrive;
-                if (typeof(cb) === "function") { cb(); }
-            };
-            Get.get(localStorage.FS_hash, todo);
+            });
         } else {
             if (typeof(cb) === "function") { cb(); }
         }

www/settings/main.js

@@ -1,9 +1,10 @@
 define([
     '/common/cryptpad-common.js',
     '/common/cryptget.js',
+    '/common/mergeDrive.js',
     '/bower_components/file-saver/FileSaver.min.js',
     '/bower_components/jquery/dist/jquery.min.js',
-], function (Cryptpad, Crypt) {
+], function (Cryptpad, Crypt, Merge) {
     var $ = window.jQuery;
     var saveAs = window.saveAs;
 
@@ -204,6 +205,25 @@ define([
         return $div;
     };
 
+    var createImportLocalPads = function (obj) {
+        var $div = $('<div>', {'class': 'importLocalPads'});
+        var $label = $('<label>', {'for' : 'importLocalPads'}).text("TODO: IMPORT LOCAL PADS LABEL").appendTo($div);
+        $('<br>').appendTo($div);
+        var $button = $('<button>', {'id': 'importLocalPads', 'class': 'btn btn-default'})
+            .text("TODO: IMPORT LOCAL PADS").appendTo($div);
+
+        $button.click(function () {
+            Cryptpad.confirm("ARE YOU SURE?", function (err) {
+                if (err) { return; }
+                Merge.anonDriveIntoUser(obj.proxy, function () {
+                    Cryptpad.alert("DONE");
+                });
+            }, undefined, true);
+        });
+
+        return $div;
+    };
+
     var andThen = function (obj) {
         APP.$container.append(createTitle());
         APP.$container.append(createInfoBlock(obj));