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354 lines
9.3 KiB
JavaScript
354 lines
9.3 KiB
JavaScript
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'use strict';
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var async = require('async');
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var winston = require('winston');
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var S = require('string');
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var db = require('../database');
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var meta = require('../meta');
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var notifications = require('../notifications');
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var privileges = require('../privileges');
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(function (UserNotifications) {
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UserNotifications.get = function (uid, callback) {
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if (!parseInt(uid, 10)) {
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return callback(null, { read: [], unread: [] });
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}
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getNotifications(uid, 0, 9, function (err, notifications) {
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if (err) {
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return callback(err);
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}
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notifications.read = notifications.read.filter(Boolean);
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notifications.unread = notifications.unread.filter(Boolean);
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var maxNotifs = 15;
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if (notifications.read.length + notifications.unread.length > maxNotifs) {
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notifications.read.length = maxNotifs - notifications.unread.length;
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}
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callback(null, notifications);
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});
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};
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function filterNotifications(nids, filter, callback) {
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if (!filter) {
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return setImmediate(callback, null, nids);
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}
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async.waterfall([
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function (next) {
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var keys = nids.map(function (nid) {
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return 'notifications:' + nid;
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});
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db.getObjectsFields(keys, ['nid', 'type'], next);
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},
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function (notifications, next) {
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nids = notifications.filter(function (notification) {
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return notification && notification.nid && notification.type === filter;
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}).map(function (notification) {
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return notification.nid;
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});
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next(null, nids);
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},
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], callback);
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}
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UserNotifications.getAll = function (uid, filter, callback) {
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var nids;
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async.waterfall([
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function (next) {
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async.parallel({
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unread: function (next) {
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db.getSortedSetRevRange('uid:' + uid + ':notifications:unread', 0, -1, next);
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},
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read: function (next) {
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db.getSortedSetRevRange('uid:' + uid + ':notifications:read', 0, -1, next);
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},
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}, next);
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},
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function (results, next) {
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nids = results.unread.concat(results.read);
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db.isSortedSetMembers('notifications', nids, next);
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},
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function (exists, next) {
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var deleteNids = [];
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nids = nids.filter(function (nid, index) {
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if (!nid || !exists[index]) {
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deleteNids.push(nid);
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}
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return nid && exists[index];
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});
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deleteUserNids(deleteNids, uid, next);
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},
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function (next) {
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filterNotifications(nids, filter, next);
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},
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], callback);
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};
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function deleteUserNids(nids, uid, callback) {
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callback = callback || function () {};
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if (!nids.length) {
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return setImmediate(callback);
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}
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async.parallel([
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function (next) {
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db.sortedSetRemove('uid:' + uid + ':notifications:read', nids, next);
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},
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function (next) {
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db.sortedSetRemove('uid:' + uid + ':notifications:unread', nids, next);
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},
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], function (err) {
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callback(err);
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});
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}
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function getNotifications(uid, start, stop, callback) {
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async.parallel({
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unread: function (next) {
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getNotificationsFromSet('uid:' + uid + ':notifications:unread', false, uid, start, stop, next);
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},
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read: function (next) {
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getNotificationsFromSet('uid:' + uid + ':notifications:read', true, uid, start, stop, next);
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},
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}, callback);
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}
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function getNotificationsFromSet(set, read, uid, start, stop, callback) {
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async.waterfall([
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function (next) {
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db.getSortedSetRevRange(set, start, stop, next);
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},
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function (nids, next) {
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if (!Array.isArray(nids) || !nids.length) {
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return callback(null, []);
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}
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UserNotifications.getNotifications(nids, uid, next);
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},
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], callback);
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}
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UserNotifications.getNotifications = function (nids, uid, callback) {
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var notificationData = [];
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async.waterfall([
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function (next) {
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async.parallel({
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notifications: function (next) {
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notifications.getMultiple(nids, next);
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},
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hasRead: function (next) {
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db.isSortedSetMembers('uid:' + uid + ':notifications:read', nids, next);
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},
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}, next);
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},
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function (results, next) {
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var deletedNids = [];
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notificationData = results.notifications.filter(function (notification, index) {
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if (!notification || !notification.nid) {
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deletedNids.push(nids[index]);
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}
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if (notification) {
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notification.read = results.hasRead[index];
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notification.readClass = !notification.read ? 'unread' : '';
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}
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return notification && notification.path;
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});
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deleteUserNids(deletedNids, uid, next);
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},
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function (next) {
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notifications.merge(notificationData, next);
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},
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], callback);
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};
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UserNotifications.getDailyUnread = function (uid, callback) {
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var yesterday = Date.now() - (1000 * 60 * 60 * 24); // Approximate, can be more or less depending on time changes, makes no difference really.
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db.getSortedSetRevRangeByScore('uid:' + uid + ':notifications:unread', 0, 20, '+inf', yesterday, function (err, nids) {
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if (err) {
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return callback(err);
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}
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if (!Array.isArray(nids) || !nids.length) {
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return callback(null, []);
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}
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UserNotifications.getNotifications(nids, uid, callback);
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});
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};
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UserNotifications.getUnreadCount = function (uid, callback) {
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if (!parseInt(uid, 10)) {
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return callback(null, 0);
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}
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// Collapse any notifications with identical mergeIds
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async.waterfall([
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async.apply(db.getSortedSetRevRange, 'uid:' + uid + ':notifications:unread', 0, 99),
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async.apply(notifications.filterExists),
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function (nids, next) {
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var keys = nids.map(function (nid) {
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return 'notifications:' + nid;
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});
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db.getObjectsFields(keys, ['mergeId'], next);
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},
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function (mergeIds, next) {
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mergeIds = mergeIds.map(function (set) {
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return set.mergeId;
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});
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next(null, mergeIds.reduce(function (count, mergeId, idx, arr) {
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// A missing (null) mergeId means that notification is counted separately.
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if (mergeId === null || idx === arr.indexOf(mergeId)) {
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count += 1;
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}
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return count;
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}, 0));
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},
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], callback);
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};
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UserNotifications.getUnreadByField = function (uid, field, values, callback) {
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db.getSortedSetRevRange('uid:' + uid + ':notifications:unread', 0, 99, function (err, nids) {
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if (err) {
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return callback(err);
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}
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if (!Array.isArray(nids) || !nids.length) {
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return callback(null, []);
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}
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var keys = nids.map(function (nid) {
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return 'notifications:' + nid;
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});
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db.getObjectsFields(keys, ['nid', field], function (err, notifications) {
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if (err) {
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return callback(err);
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}
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values = values.map(function () { return values.toString(); });
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nids = notifications.filter(function (notification) {
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return notification && notification[field] && values.indexOf(notification[field].toString()) !== -1;
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}).map(function (notification) {
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return notification.nid;
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});
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callback(null, nids);
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});
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});
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};
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UserNotifications.deleteAll = function (uid, callback) {
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if (!parseInt(uid, 10)) {
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return callback();
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}
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async.parallel([
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function (next) {
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db.delete('uid:' + uid + ':notifications:unread', next);
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},
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function (next) {
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db.delete('uid:' + uid + ':notifications:read', next);
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},
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], callback);
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};
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UserNotifications.sendTopicNotificationToFollowers = function (uid, topicData, postData) {
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var followers;
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async.waterfall([
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function (next) {
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db.getSortedSetRange('followers:' + uid, 0, -1, next);
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},
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function (followers, next) {
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if (!Array.isArray(followers) || !followers.length) {
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return;
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}
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privileges.categories.filterUids('read', topicData.cid, followers, next);
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},
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function (_followers, next) {
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followers = _followers;
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if (!followers.length) {
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return;
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}
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var title = topicData.title;
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if (title) {
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title = S(title).decodeHTMLEntities().s;
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}
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notifications.create({
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type: 'new-topic',
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bodyShort: '[[notifications:user_posted_topic, ' + postData.user.username + ', ' + title + ']]',
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bodyLong: postData.content,
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pid: postData.pid,
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path: '/post/' + postData.pid,
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nid: 'tid:' + postData.tid + ':uid:' + uid,
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tid: postData.tid,
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from: uid,
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}, next);
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},
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], function (err, notification) {
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if (err) {
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return winston.error(err);
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}
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if (notification) {
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notifications.push(notification, followers);
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}
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});
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};
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UserNotifications.sendWelcomeNotification = function (uid, callback) {
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callback = callback || function () {};
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if (!meta.config.welcomeNotification) {
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return callback();
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}
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var path = meta.config.welcomeLink ? meta.config.welcomeLink : '#';
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notifications.create({
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bodyShort: meta.config.welcomeNotification,
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path: path,
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nid: 'welcome_' + uid,
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}, function (err, notification) {
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if (err || !notification) {
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return callback(err);
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}
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notifications.push(notification, [uid], callback);
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});
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};
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UserNotifications.sendNameChangeNotification = function (uid, username) {
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notifications.create({
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bodyShort: '[[user:username_taken_workaround, ' + username + ']]',
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image: 'brand:logo',
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nid: 'username_taken:' + uid,
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datetime: Date.now(),
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}, function (err, notification) {
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if (!err && notification) {
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notifications.push(notification, uid);
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}
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});
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};
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UserNotifications.pushCount = function (uid) {
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var websockets = require('./../socket.io');
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UserNotifications.getUnreadCount(uid, function (err, count) {
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if (err) {
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return winston.error(err.stack);
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}
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websockets.in('uid_' + uid).emit('event:notifications.updateCount', count);
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});
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};
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}(exports));
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