candy/routes/thread.js

a micro bbs system based on duoshuo.com apis

// GET     /thread              ->  index
// GET     /thread/new          ->  new
// POST    /thread              ->  create
// GET     /thread/:thread       ->  show
// GET     /thread/:thread/edit  ->  edit
// PUT     /thread/:thread       ->  update
// DELETE  /thread/:thread       ->  destroy

var marked = require('marked'),
    hljs = require('highlight.js');

marked.setOptions({
    sanitize: true,
    highlight: function(code, lang) {
        return hljs.highlightAuto(code).value;
    }
});

exports = module.exports = function(ctrlers, theme) {

    var thread = ctrlers.thread,
        board = ctrlers.board;

    return {
        // API: 列出所有帖子
        index: function(req, res, next) {
            // TODO: 这里还没有做分页
            thread.ls(function(err, ths) {
                if (err) return next(err);
                res.json({
                    stat: 'ok',
                    threads: ths
                });
            })
        },
        // PAGE: 新增话题页面
        new: function(req, res, next) {
            if (!res.locals.user) return res.redirect('/sign');
            board.readDefault(req.query.bid, function(err, b) {
                if (err) return next(err);
                theme.render('flat/thread/new', {
                    board: b
                }, function(err, html) {
                    if (err) return next(err);
                    return res.send(html);
                });
            });
        },
        // PAGE: 查看话题页面
        show: function(req, res, next) {
            if (!req.params.thread) return next(new Error('id required'));
            if (!thread.checkId(req.params.thread)) return next(new Error('404'));
            thread.read(req.params.thread, function(err, t) {
                if (err) return next(err);
                if (!t) return next(new Error('404'));
                t.views = t.views + 1;
                t.save(function(err) {
                    theme.render('flat/thread/index', {
                        thread: t,
                        marked: marked
                    }, function(err, html) {
                        if (err) return next(err);
                        return res.send(html);
                    });
                });
            });
        },
        // PAGE: 更新帖子页面
        edit: function(req, res, next) {
            if (!res.locals.user) return res.redirect('/sign');
            if (!req.params.thread) return next(new Error('id required'));
            thread.checkLz(req.params.thread, res.locals.user._id, function(err, lz, thread) {
                if (err) return next(err);
                if (!lz) return next(new Error('404'));
                theme.render('flat/thread/edit', {
                    thread: thread
                }, function(err, html) {
                    if (err) return next(err);
                    return res.send(html);
                });
            })
        },
        // API：创建话题
        create: function(req, res, next) {
            if (!res.locals.user) return next(new Error('signin required'));
            if (!req.body.thread) return next(new Error('id required'));
            thread.create(req.body.thread, function(err, baby) {
                if (err) return next(err);
                res.json({
                    stat: 'ok',
                    thread: baby
                });
            })
        },
        // API：更新话题
        update: function(req, res, next) {
            if (!res.locals.user) return next(new Error('signin required'));
            if (!req.params.thread) return next(new Error('id required'));
            var tid = req.params.thread;
            var user = res.locals.user;
            thread.checkLz(tid, user._id, function(err, lz, th) {
                if (err) return next(err);
                if (!lz) return next(new Error('authed required'));
                if (req.body.pin) {
                    if (user.type !== 'admin') return next(new Error('authed required'));
                    return thread.update(tid, {
                        pined: req.body.pined,
                        level: req.body.level || 0
                    }, function(err, thread) {
                        if (err) return next(err);
                        return res.json({
                            stat: 'ok',
                            thread: thread
                        })
                    })
                }
                var updatedThread = {
                    name: req.body.thread.name,
                    content: req.body.thread.content,
                    pubdate: th.pubdate,
                    views: th.views,
                    board: th.board,
                    lz: th.lz
                };
                if (req.body.thread.media) updatedThread.media = req.body.thread.media;
                thread.update(tid, updatedThread, function(err, thread) {
                    if (err) return next(err);
                    res.json({
                        stat: 'ok',
                        thread: thread
                    });
                });
            })
        },
        // API：删除话题
        destroy: function(req, res, next) {
            if (!res.locals.user) return next(new Error('signin required'));
            if (!req.params.thread) return next(new Error('id required'));
            thread.checkLz(req.params.thread, res.locals.user._id, function(err, lz, th) {
                if (err) return next(err);
                if (!lz) return next(new Error('authed required'));
                thread.remove(req.params.thread, function(err, tid) {
                    if (err) return next(err);
                    res.json({
                        stat: 'ok',
                        tid: tid
                    });
                });
            })
        }
    }
}