You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
nodebb/src/topics.js

539 lines
14 KiB
JavaScript

"use strict";
var async = require('async'),
winston = require('winston'),
validator = require('validator'),
_ = require('underscore'),
db = require('./database'),
posts = require('./posts'),
utils = require('../public/src/utils'),
plugins = require('./plugins'),
user = require('./user'),
categories = require('./categories'),
privileges = require('./privileges');
(function(Topics) {
require('./topics/create')(Topics);
require('./topics/delete')(Topics);
require('./topics/unread')(Topics);
require('./topics/recent')(Topics);
require('./topics/popular')(Topics);
require('./topics/fork')(Topics);
require('./topics/posts')(Topics);
require('./topics/follow')(Topics);
require('./topics/tags')(Topics);
Topics.getTopicData = function(tid, callback) {
db.getObject('topic:' + tid, function(err, topic) {
if (err || !topic) {
return callback(err);
}
topic.title = validator.escape(topic.title);
topic.relativeTime = utils.toISOString(topic.timestamp);
callback(null, topic);
});
};
Topics.getTopicsData = function(tids, callback) {
var keys = [];
for (var i=0; i<tids.length; ++i) {
keys.push('topic:' + tids[i]);
}
db.getObjects(keys, function(err, topics) {
if (err) {
return callback(err);
}
for (var i=0; i<tids.length; ++i) {
if(topics[i]) {
topics[i].title = validator.escape(topics[i].title);
topics[i].relativeTime = utils.toISOString(topics[i].timestamp);
}
}
callback(null, topics);
});
};
Topics.getTopicDataWithUser = function(tid, callback) {
Topics.getTopicData(tid, function(err, topic) {
if (err || !topic) {
return callback(err || new Error('[[error:no-topic]]'));
}
user.getUserFields(topic.uid, ['username', 'userslug', 'picture'], function(err, userData) {
if (err) {
return callback(err);
}
topic.user = userData;
callback(null, topic);
});
});
};
Topics.getPageCount = function(tid, uid, callback) {
Topics.getTopicField(tid, 'postcount', function(err, postCount) {
if (err) {
return callback(err);
}
if (!parseInt(postCount, 10)) {
return callback(null, 1);
}
user.getSettings(uid, function(err, settings) {
if(err) {
return callback(err);
}
callback(null, Math.ceil(parseInt(postCount, 10) / settings.postsPerPage));
});
});
};
Topics.getTidPage = function(tid, uid, callback) {
if(!tid) {
return callback(new Error('[[error:invalid-tid]]'));
}
async.parallel({
index: function(next) {
categories.getTopicIndex(tid, next);
},
settings: function(next) {
user.getSettings(uid, next);
}
}, function(err, results) {
if(err) {
return callback(err);
}
callback(null, Math.ceil((results.index + 1) / results.settings.topicsPerPage));
});
};
Topics.getCategoryData = function(tid, callback) {
Topics.getTopicField(tid, 'cid', function(err, cid) {
if(err) {
callback(err);
}
categories.getCategoryData(cid, callback);
});
};
Topics.getTopics = function(set, uid, tids, callback) {
var returnTopics = {
topics: [],
nextStart: 0
};
if (!Array.isArray(tids) || !tids.length) {
return callback(null, returnTopics);
}
privileges.topics.filter('read', tids, uid, function(err, tids) {
if (err) {
return callback(err);
}
Topics.getTopicsByTids(tids, uid, function(err, topicData) {
if (err) {
return callback(err);
}
if(!Array.isArray(topicData) || !topicData.length) {
return callback(null, returnTopics);
}
returnTopics.topics = topicData;
callback(null, returnTopics);
});
});
};
Topics.getTopicsFromSet = function(uid, set, start, end, callback) {
db.getSortedSetRevRange(set, start, end, function(err, tids) {
if (err) {
return callback(err);
}
Topics.getTopics(set, uid, tids, function(err, data) {
if (err) {
return callback(err);
}
data.nextStart = end + 1;
callback(null, data);
});
});
};
Topics.getTopicsByTids = function(tids, uid, callback) {
if (!Array.isArray(tids) || !tids.length) {
return callback(null, []);
}
Topics.getTopicsData(tids, function(err, topics) {
function mapFilter(array, field) {
return array.map(function(topic) {
return topic && topic[field] && topic[field].toString();
}).filter(function(value, index, array) {
return utils.isNumber(value) && array.indexOf(value) === index;
});
}
if (err) {
return callback(err);
}
var uids = mapFilter(topics, 'uid');
var cids = mapFilter(topics, 'cid');
async.parallel({
teasers: function(next) {
Topics.getTeasers(tids, uid, next);
},
users: function(next) {
user.getMultipleUserFields(uids, ['uid', 'username', 'userslug', 'picture'], next);
},
categories: function(next) {
categories.getMultipleCategoryFields(cids, ['cid', 'name', 'slug', 'icon', 'bgColor', 'color', 'disabled'], next);
},
hasRead: function(next) {
Topics.hasReadTopics(tids, uid, next);
},
isAdminOrMod: function(next) {
privileges.categories.isAdminOrMod(cids, uid, next);
},
tags: function(next) {
Topics.getTopicsTagsObjects(tids, next);
}
}, function(err, results) {
if (err) {
return callback(err);
}
var users = _.object(uids, results.users);
var categories = _.object(cids, results.categories);
var isAdminOrMod = {};
cids.forEach(function(cid, index) {
isAdminOrMod[cid] = results.isAdminOrMod[index];
});
for (var i=0; i<topics.length; ++i) {
if (topics[i]) {
topics[i].category = categories[topics[i].cid];
topics[i].category.disabled = parseInt(topics[i].category.disabled, 10) === 1;
topics[i].user = users[topics[i].uid];
topics[i].teaser = results.teasers[i];
topics[i].tags = results.tags[i];
topics[i].pinned = parseInt(topics[i].pinned, 10) === 1;
topics[i].locked = parseInt(topics[i].locked, 10) === 1;
topics[i].deleted = parseInt(topics[i].deleted, 10) === 1;
topics[i].unread = !(results.hasRead[i] && parseInt(uid, 10) !== 0);
topics[i].unreplied = parseInt(topics[i].postcount, 10) <= 1;
}
}
topics = topics.filter(function(topic) {
return topic && !topic.category.disabled &&
(!topic.deleted || (topic.deleted && isAdminOrMod[topic.cid]) ||
parseInt(topic.uid, 10) === parseInt(uid, 10));
});
plugins.fireHook('filter:topics.get', {topics: topics, uid: uid}, function(err, topicData) {
callback(err, topicData.topics);
});
});
});
};
Topics.getTopicWithPosts = function(tid, set, uid, start, end, reverse, callback) {
Topics.getTopicData(tid, function(err, topicData) {
if (err || !topicData) {
return callback(err || new Error('[[error:no-topic]]'));
}
async.parallel({
posts: function(next) {
posts.getPidsFromSet(set, start, end, reverse, function(err, pids) {
if (err) {
return next(err);
}
pids = topicData.mainPid ? [topicData.mainPid].concat(pids) : pids;
if (!pids.length) {
return next(null, []);
}
posts.getPostsByPids(pids, uid, function(err, posts) {
if (err) {
return next(err);
}
Topics.addPostData(posts, uid, next);
});
});
},
category: function(next) {
Topics.getCategoryData(tid, next);
},
threadTools: function(next) {
plugins.fireHook('filter:topic.thread_tools', [], next);
},
tags: function(next) {
Topics.getTopicTagsObjects(tid, next);
},
isFollowing: function(next) {
Topics.isFollowing(tid, uid, next);
}
}, function(err, results) {
if (err) {
return callback(err);
}
topicData.posts = results.posts;
topicData.category = results.category;
topicData.thread_tools = results.threadTools;
topicData.tags = results.tags;
topicData.isFollowing = results.isFollowing;
topicData.unreplied = parseInt(topicData.postcount, 10) === 1;
topicData.deleted = parseInt(topicData.deleted, 10) === 1;
topicData.locked = parseInt(topicData.locked, 10) === 1;
topicData.pinned = parseInt(topicData.pinned, 10) === 1;
plugins.fireHook('filter:topic.get', topicData, callback);
});
});
};
Topics.getMainPost = function(tid, uid, callback) {
Topics.getMainPosts([tid], uid, function(err, mainPosts) {
callback(err, Array.isArray(mainPosts) && mainPosts.length ? mainPosts[0] : null);
});
};
Topics.getMainPosts = function(tids, uid, callback) {
var keys = tids.map(function(tid) {
return 'topic:' + tid;
});
db.getObjectsFields(keys, ['mainPid'], function(err, topicData) {
if (err) {
return callback(err);
}
var mainPids = topicData.map(function(topic) {
return topic ? topic.mainPid : null;
});
posts.getPostsByPids(mainPids, uid, function(err, postData) {
if (err) {
return callback(err);
}
if (!Array.isArray(postData) || !postData.length) {
return callback(null, []);
}
Topics.addPostData(postData, uid, callback);
});
});
};
Topics.getTeasers = function(tids, uid, callback) {
if (!Array.isArray(tids) || !tids.length) {
return callback(null, []);
}
async.parallel({
counts: function(next) {
Topics.getTopicsFields(tids, ['postcount'], function(err, topics) {
if (err) {
return next(err);
}
topics = topics.map(function(topic) {
return topic && topic.postcount;
});
next(null, topics);
});
},
pids: function(next) {
async.map(tids, function(tid, next) {
db.getSortedSetRevRange('tid:' + tid + ':posts', 0, 0, function(err, data) {
next(err, Array.isArray(data) && data.length ? data[0] : null);
});
}, next);
}
}, function(err, results) {
if (err) {
return callback(err);
}
var postKeys = results.pids.filter(Boolean).map(function(pid) {
return 'post:' + pid;
});
db.getObjectsFields(postKeys, ['pid', 'uid', 'timestamp', 'tid'], function(err, postData) {
if (err) {
return callback(err);
}
var uids = postData.map(function(post) {
return post.uid;
}).filter(function(uid, index, array) {
return array.indexOf(uid) === index;
});
user.getMultipleUserFields(uids, ['uid', 'username', 'userslug', 'picture'], function(err, usersData) {
if (err) {
return callback(err);
}
var users = {};
usersData.forEach(function(user) {
users[user.uid] = user;
});
var tidToPost = {};
postData.forEach(function(post) {
post.user = users[post.uid];
post.timestamp = utils.toISOString(post.timestamp);
tidToPost[post.tid] = post;
});
var teasers = tids.map(function(tid, index) {
if (tidToPost[tid]) {
tidToPost[tid].index = results.counts[index] + 1;
}
return tidToPost[tid];
});
callback(null, teasers);
});
});
});
};
Topics.getTeaser = function(tid, uid, callback) {
Topics.getLatestUndeletedPid(tid, function(err, pid) {
if (err || !pid) {
return callback(err);
}
async.parallel({
postData: function(next) {
posts.getPostFields(pid, ['pid', 'uid', 'timestamp'], function(err, postData) {
if (err) {
return next(err);
} else if(!postData || !utils.isNumber(postData.uid)) {
return callback();
}
user.getUserFields(postData.uid, ['username', 'userslug', 'picture'], function(err, userData) {
if (err) {
return next(err);
}
postData.user = userData;
next(null, postData);
});
});
},
postIndex: function(next) {
posts.getPidIndex(pid, uid, next);
}
}, function(err, results) {
if (err) {
return callback(err);
}
results.postData.timestamp = utils.toISOString(results.postData.timestamp);
results.postData.index = results.postIndex;
callback(null, results.postData);
});
});
};
Topics.getTopicField = function(tid, field, callback) {
db.getObjectField('topic:' + tid, field, callback);
};
Topics.getTopicFields = function(tid, fields, callback) {
db.getObjectFields('topic:' + tid, fields, callback);
};
Topics.getTopicsFields = function(tids, fields, callback) {
var keys = tids.map(function(tid) {
return 'topic:' + tid;
});
db.getObjectsFields(keys, fields, callback);
};
Topics.setTopicField = function(tid, field, value, callback) {
db.setObjectField('topic:' + tid, field, value, callback);
};
Topics.isLocked = function(tid, callback) {
Topics.getTopicField(tid, 'locked', function(err, locked) {
if(err) {
return callback(err);
}
callback(null, parseInt(locked, 10) === 1);
});
};
Topics.isOwner = function(tid, uid, callback) {
uid = parseInt(uid, 10);
if (!uid) {
return callback(null, false);
}
Topics.getTopicField(tid, 'uid', function(err, author) {
callback(err, parseInt(author, 10) === uid);
});
};
Topics.getUids = function(tid, callback) {
Topics.getPids(tid, function(err, pids) {
if (err) {
return callback(err);
}
var keys = pids.map(function(pid) {
return 'post:' + pid;
});
db.getObjectsFields(keys, ['uid'], function(err, data) {
if (err) {
return callback(err);
}
var uids = data.map(function(data) {
return data.uid;
}).filter(function(uid, pos, array) {
return array.indexOf(uid) === pos;
});
callback(null, uids);
});
});
};
Topics.search = function(tid, term, callback) {
if (plugins.hasListeners('filter:topic.search')) {
plugins.fireHook('filter:topic.search', {
tid: tid,
term: term
}, callback);
} else {
callback(new Error('no-plugins-available'), []);
}
};
}(exports));