Move storage objects to their own files

Greatly reduce the size of the ignominiously named helpers.js.
2014-10-28 20:30:35 -07:00
parent b92c5bb84e
commit 1c76c0b546
9 changed files with 336 additions and 263 deletions
--- a/js/storage/groups.js
+++ b/js/storage/groups.js
@@ -0,0 +1,140 @@
+/* vim: ts=4:sw=4
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+'use strict';
+
+;(function() {
+    /*********************
+     *** Group Storage ***
+     *********************/
+    window.textsecure = window.textsecure || {};
+    window.textsecure.storage = window.textsecure.storage || {};
+
+    window.textsecure.storage.groups = {
+        getGroupListForNumber: function(number) {
+            return textsecure.storage.getEncrypted("groupMembership" + number, []);
+        },
+
+        createNewGroup: function(numbers, groupId) {
+            if (groupId !== undefined && textsecure.storage.getEncrypted("group" + groupId) !== undefined) {
+                throw new Error("Tried to recreate group");
+            }
+
+            while (groupId === undefined || textsecure.storage.getEncrypted("group" + groupId) !== undefined) {
+                groupId = getString(textsecure.crypto.getRandomBytes(16));
+            }
+
+            var me = textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0];
+            var haveMe = false;
+            var finalNumbers = [];
+            for (var i in numbers) {
+                var number = libphonenumber.util.verifyNumber(numbers[i]);
+                if (number == me)
+                    haveMe = true;
+                if (finalNumbers.indexOf(number) < 0) {
+                    finalNumbers.push(number);
+                    addGroupToNumber(groupId, number);
+                }
+            }
+
+            if (!haveMe)
+                finalNumbers.push(me);
+
+            textsecure.storage.putEncrypted("group" + groupId, {numbers: finalNumbers});
+
+            return {id: groupId, numbers: finalNumbers};
+        },
+
+        getNumbers: function(groupId) {
+            var group = textsecure.storage.getEncrypted("group" + groupId);
+            if (group === undefined)
+                return undefined;
+
+            return group.numbers;
+        },
+
+        removeNumber: function(groupId, number) {
+            var group = textsecure.storage.getEncrypted("group" + groupId);
+            if (group === undefined)
+                return undefined;
+
+            try {
+                number = libphonenumber.util.verifyNumber(number);
+            } catch (e) {
+                return group.numbers;
+            }
+
+            var me = textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0];
+            if (number == me)
+                throw new Error("Cannot remove ourselves from a group, leave the group instead");
+
+            var i = group.numbers.indexOf(number);
+            if (i > -1) {
+                group.numbers.slice(i, 1);
+                textsecure.storage.putEncrypted("group" + groupId, group);
+                removeGroupFromNumber(groupId, number);
+            }
+
+            return group.numbers;
+        },
+
+        addNumbers: function(groupId, numbers) {
+            var group = textsecure.storage.getEncrypted("group" + groupId);
+            if (group === undefined)
+                return undefined;
+
+            for (var i in numbers) {
+                var number = libphonenumber.util.verifyNumber(numbers[i]);
+                if (group.numbers.indexOf(number) < 0) {
+                    group.numbers.push(number);
+                    addGroupToNumber(groupId, number);
+                }
+            }
+
+            textsecure.storage.putEncrypted("group" + groupId, group);
+            return group.numbers;
+        },
+
+        deleteGroup: function(groupId) {
+            textsecure.storage.removeEncrypted("group" + groupId);
+        },
+
+        getGroup: function(groupId) {
+            var group = textsecure.storage.getEncrypted("group" + groupId);
+            if (group === undefined)
+                return undefined;
+
+            return { id: groupId, numbers: group.numbers }; //TODO: avatar/name tracking
+        }
+    };
+
+    var addGroupToNumber = function(groupId, number) {
+        var membership = textsecure.storage.getEncrypted("groupMembership" + number, [groupId]);
+        if (membership.indexOf(groupId) < 0)
+            membership.push(groupId);
+        textsecure.storage.putEncrypted("groupMembership" + number, membership);
+    }
+
+    var removeGroupFromNumber = function(groupId, number) {
+        var membership = textsecure.storage.getEncrypted("groupMembership" + number, [groupId]);
+        membership = membership.filter(function(group) { return group != groupId; });
+        if (membership.length == 0)
+            textsecure.storage.removeEncrypted("groupMembership" + number);
+        else
+            textsecure.storage.putEncrypted("groupMembership" + number, membership);
+    }
+
+})();