148 lines
5.5 KiB
JavaScript
148 lines
5.5 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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;(function() {
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'use strict';
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/*********************
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*** Group Storage ***
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*********************/
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window.textsecure = window.textsecure || {};
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window.textsecure.storage = window.textsecure.storage || {};
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// create a random group id that we haven't seen before.
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function generateNewGroupId() {
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var groupId = getString(libsignal.crypto.getRandomBytes(16));
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined) {
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return groupId;
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} else {
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console.warn('group id collision'); // probably a bad sign.
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return generateNewGroupId();
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}
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});
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}
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window.textsecure.storage.groups = {
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createNewGroup: function(numbers, groupId) {
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var groupId = groupId;
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return new Promise(function(resolve) {
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if (groupId !== undefined) {
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resolve(textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group !== undefined) {
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throw new Error("Tried to recreate group");
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}
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}));
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} else {
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resolve(generateNewGroupId().then(function(newGroupId) {
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groupId = newGroupId;
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}));
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}
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}).then(function() {
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var me = textsecure.storage.user.getNumber();
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var haveMe = false;
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var finalNumbers = [];
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for (var i in numbers) {
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var number = numbers[i];
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if (!textsecure.utils.isNumberSane(number))
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throw new Error("Invalid number in group");
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if (number == me)
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haveMe = true;
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if (finalNumbers.indexOf(number) < 0)
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finalNumbers.push(number);
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}
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if (!haveMe)
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finalNumbers.push(me);
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var groupObject = {numbers: finalNumbers, numberRegistrationIds: {}};
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for (var i in finalNumbers)
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groupObject.numberRegistrationIds[finalNumbers[i]] = {};
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return textsecure.storage.protocol.putGroup(groupId, groupObject).then(function() {
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return {id: groupId, numbers: finalNumbers};
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});
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});
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},
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getNumbers: function(groupId) {
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined)
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return undefined;
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return group.numbers;
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});
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},
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removeNumber: function(groupId, number) {
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined)
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return undefined;
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var me = textsecure.storage.user.getNumber();
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if (number == me)
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throw new Error("Cannot remove ourselves from a group, leave the group instead");
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var i = group.numbers.indexOf(number);
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if (i > -1) {
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group.numbers.splice(i, 1);
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delete group.numberRegistrationIds[number];
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return textsecure.storage.protocol.putGroup(groupId, group).then(function() {
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return group.numbers;
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});
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}
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return group.numbers;
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});
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},
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addNumbers: function(groupId, numbers) {
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined)
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return undefined;
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for (var i in numbers) {
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var number = numbers[i];
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if (!textsecure.utils.isNumberSane(number))
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throw new Error("Invalid number in set to add to group");
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if (group.numbers.indexOf(number) < 0) {
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group.numbers.push(number);
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group.numberRegistrationIds[number] = {};
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}
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}
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return textsecure.storage.protocol.putGroup(groupId, group).then(function() {
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return group.numbers;
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});
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});
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},
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deleteGroup: function(groupId) {
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return textsecure.storage.protocol.removeGroup(groupId);
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},
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getGroup: function(groupId) {
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined)
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return undefined;
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return { id: groupId, numbers: group.numbers };
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});
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},
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updateNumbers: function(groupId, numbers) {
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return textsecure.storage.protocol.getGroup(groupId).then(function(group) {
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if (group === undefined)
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throw new Error("Tried to update numbers for unknown group");
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if (numbers.filter(textsecure.utils.isNumberSane).length < numbers.length)
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throw new Error("Invalid number in new group members");
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var added = numbers.filter(function(number) { return group.numbers.indexOf(number) < 0; });
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return textsecure.storage.groups.addNumbers(groupId, added);
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});
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}
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};
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})();
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