git ssb

1
var fs = require('fs')
2
var http = require('http')
3
var path = require('path')
4
var url = require('url')
5
var qs = require('querystring')
6
var util = require('util')
7
var ref = require('ssb-ref')
8
var pull = require('pull-stream')
9
var ssbGit = require('ssb-git-repo')
10
var toPull = require('stream-to-pull-stream')
11
var cat = require('pull-cat')
12
var GitRepo = require('pull-git-repo')
13
var u = require('./lib/util')
14
var markdown = require('./lib/markdown')
15
var paginate = require('./lib/paginate')
16
var asyncMemo = require('asyncmemo')
17
var multicb = require('multicb')
18
var schemas = require('ssb-msg-schemas')
19
var Issues = require('ssb-issues')
20
var PullRequests = require('ssb-pull-requests')
21
var paramap = require('pull-paramap')
22
var Mentions = require('ssb-mentions')
23
var many = require('pull-many')
24
var ident = require('pull-identify-filetype')
25
var mime = require('mime-types')
26
var moment = require('moment')
27
var LRUCache = require('lrucache')
28
29
var hlCssPath = path.resolve(require.resolve('highlight.js'), '../../styles')
30
var emojiPath = path.resolve(require.resolve('emoji-named-characters'), '../pngs')
31
32
function ParamError(msg) {
33
  var err = Error.call(this, msg)
34
  err.name = ParamError.name
35
  return err
36
}
37
util.inherits(ParamError, Error)
38
39
function parseAddr(str, def) {
40
  if (!str) return def
41
  var i = str.lastIndexOf(':')
42
  if (~i) return {host: str.substr(0, i), port: str.substr(i+1)}
43
  if (isNaN(str)) return {host: str, port: def.port}
44
  return {host: def.host, port: str}
45
}
46
47
function tryDecodeURIComponent(str) {
48
  if (!str || (str[0] == '%' && ref.isBlobId(str)))
49
    return str
50
  try {
51
    str = decodeURIComponent(str)
52
  } finally {
53
    return str
54
  }
55
}
56
57
function getContentType(filename) {
58
  var ext = u.getExtension(filename)
59
  return contentTypes[ext] || u.imgMimes[ext] || 'text/plain; charset=utf-8'
60
}
61
62
var contentTypes = {
63
  css: 'text/css'
64
}
65
66
function readReqForm(req, cb) {
67
  pull(
68
    toPull(req),
69
    pull.collect(function (err, bufs) {
70
      if (err) return cb(err)
71
      var data
72
      try {
73
        data = qs.parse(Buffer.concat(bufs).toString('ascii'))
74
      } catch(e) {
75
        return cb(e)
76
      }
77
      cb(null, data)
78
    })
79
  )
80
}
81
82
var msgTypes = {
83
  'git-repo': true,
84
  'git-update': true,
85
  'issue': true,
86
  'pull-request': true
87
}
88
89
var _httpServer
90
91
module.exports = {
92
  name: 'git-ssb-web',
93
  version: require('./package').version,
94
  manifest: {},
95
  init: function (ssb, config, reconnect) {
96
    // close existing server. when scuttlebot plugins get a deinit method, we
97
    // will close it in that instead it
98
    if (_httpServer)
99
      _httpServer.close()
100
101
    var web = new GitSSBWeb(ssb, config, reconnect)
102
    _httpSserver = web.httpServer
103
104
    return {}
105
  }
106
}
107
108
function GitSSBWeb(ssb, config, reconnect) {
109
  this.ssb = ssb
110
  this.config = config
111
  this.reconnect = reconnect
112
113
  if (config.logging && config.logging.level)
114
    this.logLevel = this.logLevels.indexOf(config.logging.level)
115
  this.ssbAppname = config.appname || 'ssb'
116
  this.isPublic = config.public
117
  this.getVotes = require('./lib/votes')(ssb)
118
  this.getMsg = asyncMemo({cache: new LRUCache(100)}, ssb.get)
119
  this.issues = Issues.init(ssb)
120
  this.pullReqs = PullRequests.init(ssb)
121
  this.getRepo = asyncMemo({
122
    cache: new LRUCache(32)
123
  }, function (id, cb) {
124
    this.getMsg(id, function (err, msg) {
125
      if (err) return cb(err)
126
      ssbGit.getRepo(ssb, {key: id, value: msg}, {live: true}, cb)
127
    })
128
  })
129
130
  this.about = function (id, cb) { cb(null, {name: id}) }
131
  ssb.whoami(function (err, feed) {
132
    this.myId = feed.id
133
    this.about = require('./lib/about')(ssb, this.myId)
134
  }.bind(this))
135
136
  this.i18n = require('./lib/i18n')(path.join(__dirname, 'locale'), 'en')
137
  this.users = require('./lib/users')(this)
138
  this.repos = require('./lib/repos')(this)
139
140
  this.indexCache = require('./lib/index-cache')(ssb)
141
142
  var webConfig = config['git-ssb-web'] || {}
143
  var addr = parseAddr(config.listenAddr, {
144
    host: webConfig.host || 'localhost',
145
    port: webConfig.port || 7718
146
  })
147
  this.listen(addr.host, addr.port)
148
}
149
150
var G = GitSSBWeb.prototype
151
152
G.logLevels = ['error', 'warning', 'notice', 'info']
153
G.logLevel = G.logLevels.indexOf('notice')
154
155
G.log = function (level) {
156
  if (this.logLevels.indexOf(level) > this.logLevel) return
157
  console.log.apply(console, [].slice.call(arguments, 1))
158
}
159
160
G.listen = function (host, port) {
161
  this.httpServer = http.createServer(G_onRequest.bind(this))
162
  this.httpServer.listen(port, host, function () {
163
    var hostName = ~host.indexOf(':') ? '[' + host + ']' : host
164
    this.log('notice', 'Listening on http://' + hostName + ':' + port + '/')
165
  }.bind(this))
166
}
167
168
G.getRepoName = function (ownerId, repoId, cb) {
169
  this.about.getName({
170
    owner: ownerId,
171
    target: repoId
172
  }, cb)
173
}
174
175
G.getRepoFullName = function (author, repoId, cb) {
176
  var done = multicb({ pluck: 1, spread: true })
177
  this.getRepoName(author, repoId, done())
178
  this.about.getName(author, done())
179
  done(cb)
180
}
181
182
G.addAuthorName = function () {
183
  var about = this.about
184
  return paramap(function (msg, cb) {
185
    var author = msg && msg.value && msg.value.author
186
    if (!author) return cb(null, msg)
187
    about.getName(author, function (err, authorName) {
188
      msg.authorName = authorName
189
      cb(err, msg)
190
    })
191
  }, 8)
192
}
193
194
/* Serving a request */
195
196
function serve(req, res) {
197
  return pull(
198
    pull.filter(function (data) {
199
      if (Array.isArray(data)) {
200
        res.writeHead.apply(res, data)
201
        return false
202
      }
203
      return true
204
    }),
205
    toPull(res)
206
  )
207
}
208
209
function G_onRequest(req, res) {
210
  this.log('info', req.method, req.url)
211
  req._u = url.parse(req.url, true)
212
  var locale = req._u.query.locale ||
213
    (/locale=([^;]*)/.exec(req.headers.cookie) || [])[1]
214
  var reqLocales = req.headers['accept-language']
215
  this.i18n.pickCatalog(reqLocales, locale, function (err, t) {
216
    if (err) return pull(this.serveError(req, err, 500), serve(req, res))
217
    req._t = t
218
    req._locale = t.locale
219
    pull(this.handleRequest(req), serve(req, res))
220
  }.bind(this))
221
}
222
223
G.handleRequest = function (req) {
224
  var path = req._u.pathname.slice(1)
225
  var dirs = ref.isLink(path) ? [path] :
226
    path.split(/\/+/).map(tryDecodeURIComponent)
227
  var dir = dirs[0]
228
229
  if (req.method == 'POST')
230
    return this.handlePOST(req, dir)
231
232
  if (dir == '')
233
    return this.serveIndex(req)
234
  else if (dir == 'search')
235
    return this.serveSearch(req)
236
  else if (ref.isBlobId(dir))
237
    return this.serveBlob(req, dir)
238
  else if (ref.isMsgId(dir))
239
    return this.serveMessage(req, dir, dirs.slice(1))
240
  else if (ref.isFeedId(dir))
241
    return this.users.serveUserPage(req, dir, dirs.slice(1))
242
  else if (dir == 'static')
243
    return this.serveFile(req, dirs)
244
  else if (dir == 'highlight')
245
    return this.serveFile(req, [hlCssPath].concat(dirs.slice(1)), true)
246
  else if (dir == 'emoji')
247
    return this.serveFile(req, [emojiPath].concat(dirs.slice(1)), true)
248
  else
249
    return this.serve404(req)
250
}
251
252
G.handlePOST = function (req, dir) {
253
  var self = this
254
  if (self.isPublic)
255
    return self.serveBuffer(405, req._t('error.POSTNotAllowed'))
256
  return u.readNext(function (cb) {
257
    readReqForm(req, function (err, data) {
258
      if (err) return cb(null, self.serveError(req, err, 400))
259
      if (!data) return cb(null, self.serveError(req,
260
        new ParamError(req._t('error.MissingData')), 400))
261
262
      switch (data.action) {
263
        case 'fork-prompt':
264
          return cb(null, self.serveRedirect(req,
265
            u.encodeLink([data.id, 'fork'])))
266
267
        case 'fork':
268
          if (!data.id)
269
            return cb(null, self.serveError(req,
270
              new ParamError(req._t('error.MissingId')), 400))
271
          return ssbGit.createRepo(self.ssb, {upstream: data.id},
272
            function (err, repo) {
273
              if (err) return cb(null, self.serveError(req, err))
274
              cb(null, self.serveRedirect(req, u.encodeLink(repo.id)))
275
            })
276
277
        case 'vote':
278
          var voteValue = +data.value || 0
279
          if (!data.id)
280
            return cb(null, self.serveError(req,
281
              new ParamError(req._t('error.MissingId')), 400))
282
          var msg = schemas.vote(data.id, voteValue)
283
          return self.ssb.publish(msg, function (err) {
284
            if (err) return cb(null, self.serveError(req, err))
285
            cb(null, self.serveRedirect(req, req.url))
286
          })
287
288
      case 'repo-name':
289
        if (!data.id)
290
          return cb(null, self.serveError(req,
291
            new ParamError(req._t('error.MissingId')), 400))
292
        if (!data.name)
293
          return cb(null, self.serveError(req,
294
            new ParamError(req._t('error.MissingName')), 400))
295
        var msg = schemas.name(data.id, data.name)
296
        return self.ssb.publish(msg, function (err) {
297
          if (err) return cb(null, self.serveError(req, err))
298
          cb(null, self.serveRedirect(req, req.url))
299
        })
300
301
      case 'comment':
302
        if (!data.id)
303
          return cb(null, self.serveError(req,
304
            new ParamError(req._t('error.MissingId')), 400))
305
        var msg = schemas.post(data.text, data.id, data.branch || data.id)
306
        msg.issue = data.issue
307
        msg.repo = data.repo
308
        if (data.open != null)
309
          Issues.schemas.reopens(msg, data.id)
310
        if (data.close != null)
311
          Issues.schemas.closes(msg, data.id)
312
        var mentions = Mentions(data.text)
313
        if (mentions.length)
314
          msg.mentions = mentions
315
        return self.ssb.publish(msg, function (err) {
316
          if (err) return cb(null, self.serveError(req, err))
317
          cb(null, self.serveRedirect(req, req.url))
318
        })
319
320
      case 'new-issue':
321
        var msg = Issues.schemas.new(dir, data.text)
322
        var mentions = Mentions(data.text)
323
        if (mentions.length)
324
          msg.mentions = mentions
325
        return self.ssb.publish(msg, function (err, msg) {
326
          if (err) return cb(null, self.serveError(req, err))
327
          cb(null, self.serveRedirect(req, u.encodeLink(msg.key)))
328
        })
329
330
      case 'new-pull':
331
        var msg = PullRequests.schemas.new(dir, data.branch,
332
          data.head_repo, data.head_branch, data.text)
333
        var mentions = Mentions(data.text)
334
        if (mentions.length)
335
          msg.mentions = mentions
336
        return self.ssb.publish(msg, function (err, msg) {
337
          if (err) return cb(null, self.serveError(req, err))
338
          cb(null, self.serveRedirect(req, u.encodeLink(msg.key)))
339
        })
340
341
      case 'markdown':
342
        return cb(null, self.serveMarkdown(data.text, {id: data.repo}))
343
344
      default:
345
        cb(null, self.serveBuffer(400, req._t('error.UnknownAction', data)))
346
      }
347
    })
348
  })
349
}
350
351
G.serveFile = function (req, dirs, outside) {
352
  var filename = path.resolve.apply(path, [__dirname].concat(dirs))
353
  // prevent escaping base dir
354
  if (!outside && filename.indexOf('../') === 0)
355
    return this.serveBuffer(403, req._t("error.403Forbidden"))
356
357
  return u.readNext(function (cb) {
358
    fs.stat(filename, function (err, stats) {
359
      cb(null, err ?
360
        err.code == 'ENOENT' ? this.serve404(req)
361
        : this.serveBuffer(500, err.message)
362
      : u.ifModifiedSince(req, stats.mtime) ?
363
        pull.once([304])
364
      : stats.isDirectory() ?
365
        this.serveBuffer(403, req._t('error.DirectoryNotListable'))
366
      : cat([
367
        pull.once([200, {
368
          'Content-Type': getContentType(filename),
369
          'Content-Length': stats.size,
370
          'Last-Modified': stats.mtime.toGMTString()
371
        }]),
372
        toPull(fs.createReadStream(filename))
373
      ]))
374
    }.bind(this))
375
  }.bind(this))
376
}
377
378
G.serveBuffer = function (code, buf, contentType, headers) {
379
  headers = headers || {}
380
  headers['Content-Type'] = contentType || 'text/plain; charset=utf-8'
381
  headers['Content-Length'] = Buffer.byteLength(buf)
382
  return pull.values([
383
    [code, headers],
384
    buf
385
  ])
386
}
387
388
G.serve404 = function (req) {
389
  return this.serveBuffer(404, req._t("error.404NotFound"))
390
}
391
392
G.serveRedirect = function (req, path) {
393
  return this.serveBuffer(302,
394
    '<!doctype><html><head>' +
395
    '<title>' + req._t('Redirect') + '</title></head><body>' +
396
    '<p><a href="' + u.escape(path) + '">' +
397
      req._t('Continue') + '</a></p>' +
398
    '</body></html>', 'text/html; charset=utf-8', {Location: path})
399
}
400
401
G.serveMarkdown = function (text, repo) {
402
  return this.serveBuffer(200, markdown(text, repo),
403
    'text/html; charset=utf-8')
404
}
405
406
G.renderError = function (err, tag) {
407
  tag = tag || 'h3'
408
  return '<' + tag + '>' + err.name + '</' + tag + '>' +
409
    '<pre>' + u.escape(err.stack) + '</pre>'
410
}
411
412
G.renderTry = function (read) {
413
  var self = this
414
  var ended
415
  return function (end, cb) {
416
    if (ended) return cb(ended)
417
    read(end, function (err, data) {
418
      if (err === true)
419
        cb(true)
420
      else if (err) {
421
        ended = true
422
        cb(null, self.renderError(err))
423
      } else
424
        cb(null, data)
425
    })
426
  }
427
}
428
429
G.serveTemplate = function (req, title, code, read) {
430
  var self = this
431
  if (read === undefined)
432
    return this.serveTemplate.bind(this, req, title, code)
433
  var q = req._u.query.q && u.escape(req._u.query.q) || ''
434
  var app = 'git ssb'
435
  var appName = this.ssbAppname
436
  if (req._t) app = req._t(app)
437
  return cat([
438
    pull.values([
439
      [code || 200, {
440
        'Content-Type': 'text/html'
441
      }],
442
      '<!doctype html><html><head><meta charset=utf-8>',
443
      '<title>' + app + (title != undefined ? ' - ' + title : '') + '</title>',
444
      '<link rel=stylesheet href="/static/styles.css"/>',
445
      '<link rel=stylesheet href="/highlight/foundation.css"/>',
446
      '</head>\n',
447
      '<body>',
448
      '<header>'
449
    ]),
450
    self.isPublic ? null : u.readOnce(function (cb) {
451
      self.about(self.myId, function (err, about) {
452
        if (err) return cb(err)
453
        cb(null,
454
          '<a href="' + u.encodeLink(self.myId) + '">' +
455
            (about.image ?
456
              '<img class="profile-icon icon-right"' +
457
              ' src="/' + encodeURIComponent(about.image) + '"' +
458
              ' alt="' + u.escape(about.name) + '">' : u.escape(about.name)) +
459
          '</a>')
460
      })
461
    }),
462
    pull.once(
463
      '<form action="/search" method="get">' +
464
      '<h1><a href="/">' + app +
465
        (appName == 'ssb' ? '' : ' <sub>' + appName + '</sub>') +
466
      '</a></h1> ' +
467
      '<input class="search-bar" name="q" size="60"' +
468
        ' placeholder=" Search" value="' + q + '" />' +
469
      '</form>' +
470
      '</header>' +
471
      '<article><hr />'),
472
    this.renderTry(read),
473
    pull.once('<hr/><p style="font-size: .8em;">Built with <a href="http://git-ssb.celehner.com">git-ssb-web</a></p></article></body></html>')
474
  ])
475
}
476
477
G.serveError = function (req, err, status) {
478
  if (err.message == 'stream is closed')
479
    this.reconnect && this.reconnect()
480
  return pull(
481
    pull.once(this.renderError(err, 'h2')),
482
    this.serveTemplate(req, err.name, status || 500)
483
  )
484
}
485
486
G.renderObjectData = function (obj, filename, repo, rev, path) {
487
  var ext = u.getExtension(filename)
488
  return u.readOnce(function (cb) {
489
    u.readObjectString(obj, function (err, buf) {
490
      buf = buf.toString('utf8')
491
      if (err) return cb(err)
492
      cb(null, (ext == 'md' || ext == 'markdown')
493
        ? markdown(buf, {repo: repo, rev: rev, path: path})
494
        : buf.length > 1000000 ? ''
495
        : renderCodeTable(buf, ext))
496
    })
497
  })
498
}
499
500
function renderCodeTable(buf, ext) {
501
  return '<pre><table class="code">' +
502
    u.highlight(buf, ext).split('\n').map(function (line, i) {
503
      i++
504
      return '<tr id="L' + i + '">' +
505
        '<td class="code-linenum">' + '<a href="#L' + i + '">' + i + '</td>' +
506
        '<td class="code-text">' + line + '</td></tr>'
507
    }).join('') +
508
    '</table></pre>'
509
}
510
511
/* Feed */
512
513
G.renderFeed = function (req, feedId, filter) {
514
  var query = req._u.query
515
  var opts = {
516
    reverse: !query.forwards,
517
    lt: query.lt && +query.lt || Date.now(),
518
    gt: query.gt ? +query.gt : -Infinity,
519
    id: feedId
520
  }
521
  return pull(
522
    feedId ? this.ssb.createUserStream(opts) : this.ssb.createFeedStream(opts),
523
    pull.filter(function (msg) {
524
      var c = msg.value.content
525
      return c.type in msgTypes
526
        || (c.type == 'post' && c.repo && c.issue)
527
    }),
528
    typeof filter == 'function' ? filter(opts) : filter,
529
    pull.take(100),
530
    this.addAuthorName(),
531
    query.forwards && u.pullReverse(),
532
    paginate(
533
      function (first, cb) {
534
        if (!query.lt && !query.gt) return cb(null, '')
535
        var gt = feedId ? first.value.sequence : first.value.timestamp + 1
536
        query.gt = gt
537
        query.forwards = 1
538
        delete query.lt
539
        cb(null, '<a href="?' + qs.stringify(query) + '">' +
540
          req._t('Next') + '</a>')
541
      },
542
      paramap(this.renderFeedItem.bind(this, req), 8),
543
      function (last, cb) {
544
        query.lt = feedId ? last.value.sequence : last.value.timestamp - 1
545
        delete query.gt
546
        delete query.forwards
547
        cb(null, '<a href="?' + qs.stringify(query) + '">' +
548
          req._t('Previous') + '</a>')
549
      },
550
      function (cb) {
551
        if (query.forwards) {
552
          delete query.gt
553
          delete query.forwards
554
          query.lt = opts.gt + 1
555
        } else {
556
          delete query.lt
557
          query.gt = opts.lt - 1
558
          query.forwards = 1
559
        }
560
        cb(null, '<a href="?' + qs.stringify(query) + '">' +
561
          req._t(query.forwards ? 'Older' : 'Newer') + '</a>')
562
      }
563
    )
564
  )
565
}
566
567
G.renderFeedItem = function (req, msg, cb) {
568
  var self = this
569
  var c = msg.value.content
570
  var msgDate = moment(new Date(msg.value.timestamp)).fromNow()
571
  var msgDateLink = u.link([msg.key], msgDate, false, 'class="date"')
572
  var author = msg.value.author
573
  var authorLink = u.link([msg.value.author], msg.authorName)
574
  switch (c.type) {
575
    case 'git-repo':
576
      var done = multicb({ pluck: 1, spread: true })
577
      self.getRepoName(author, msg.key, done())
578
      if (c.upstream) {
579
        return self.getMsg(c.upstream, function (err, upstreamMsg) {
580
          if (err) return cb(null, self.serveError(req, err))
581
          self.getRepoName(upstreamMsg.author, c.upstream, done())
582
          done(function (err, repoName, upstreamName) {
583
            cb(null, '<section class="collapse">' +
584
              req._t('Forked', {
585
                name: authorLink,
586
                upstream: u.link([c.upstream], upstreamName),
587
                repo: u.link([msg.key], repoName)
588
              }) + ' ' + msgDateLink + '</section>')
589
          })
590
        })
591
      } else {
592
        return done(function (err, repoName) {
593
          if (err) return cb(err)
594
          var repoLink = u.link([msg.key], repoName)
595
          cb(null, '<section class="collapse">' +
596
            req._t('CreatedRepo', {
597
              name: authorLink,
598
              repo: repoLink
599
            }) + ' ' + msgDateLink + '</section>')
600
        })
601
      }
602
    case 'git-update':
603
      return self.getRepoName(author, c.repo, function (err, repoName) {
604
        if (err) return cb(err)
605
        var repoLink = u.link([c.repo], repoName)
606
        cb(null, '<section class="collapse">' +
607
          req._t('Pushed', {
608
            name: authorLink,
609
            repo: repoLink
610
          }) + ' ' + msgDateLink + '</section>')
611
      })
612
    case 'issue':
613
    case 'pull-request':
614
      var issueLink = u.link([msg.key], u.messageTitle(msg))
615
      return self.getMsg(c.project, function (err, projectMsg) {
616
        if (err) return cb(null,
617
          self.repos.serveRepoNotFound(req, c.repo, err))
618
        self.getRepoName(projectMsg.author, c.project,
619
          function (err, repoName) {
620
            if (err) return cb(err)
621
            var repoLink = u.link([c.project], repoName)
622
            cb(null, '<section class="collapse">' +
623
              req._t('OpenedIssue', {
624
                name: authorLink,
625
                type: req._t(c.type == 'pull-request' ?
626
                  'pull request' : 'issue.'),
627
                title: issueLink,
628
                project: repoLink
629
              }) + ' ' + msgDateLink + '</section>')
630
          })
631
      })
632
    case 'about':
633
      return cb(null, '<section class="collapse">' +
634
        req._t('Named', {
635
          author: authorLink,
636
          target: '<tt>' + u.escape(c.about) + '</tt>',
637
          name: u.link([c.about], c.name)
638
        }) + '</section>')
639
    case 'post':
640
      return this.pullReqs.get(c.issue, function (err, pr) {
641
        if (err) return cb(err)
642
        var type = pr.msg.value.content.type == 'pull-request' ?
643
          'pull request' : 'issue.'
644
        var changed = self.issues.isStatusChanged(msg, pr)
645
        return cb(null, '<section class="collapse">' +
646
          req._t(changed == null ? 'CommentedOn' :
647
              changed ? 'ReopenedIssue' : 'ClosedIssue', {
648
            name: authorLink,
649
            type: req._t(type),
650
            title: u.link([pr.id], pr.title, true)
651
          }) +
652
          (c.text ? '<blockquote>' + markdown(c.text) + '</blockquote>' : '') +
653
          '</section>')
654
      })
655
    default:
656
      return cb(null, u.json(msg))
657
  }
658
}
659
660
/* Index */
661
662
G.serveIndex = function (req) {
663
  return this.serveTemplate(req)(this.renderFeed(req))
664
}
665
666
/* Message */
667
668
G.serveMessage = function (req, id, path) {
669
  var self = this
670
  return u.readNext(function (cb) {
671
    self.ssb.get(id, function (err, msg) {
672
      if (err) return cb(null, self.serveError(req, err))
673
      var c = msg.content || {}
674
      switch (c.type) {
675
        case 'git-repo':
676
          return self.getRepo(id, function (err, repo) {
677
            if (err) return cb(null, self.serveError(req, err))
678
            cb(null, self.repos.serveRepoPage(req, GitRepo(repo), path))
679
          })
680
        case 'git-update':
681
          return self.getRepo(c.repo, function (err, repo) {
682
            if (err) return cb(null,
683
              self.repos.serveRepoNotFound(req, c.repo, err))
684
            cb(null, self.repos.serveRepoUpdate(req,
685
              GitRepo(repo), id, msg, path))
686
          })
687
        case 'issue':
688
          return self.getRepo(c.project, function (err, repo) {
689
            if (err) return cb(null,
690
              self.repos.serveRepoNotFound(req, c.project, err))
691
            self.issues.get(id, function (err, issue) {
692
              if (err) return cb(null, self.serveError(req, err))
693
              cb(null, self.repos.issues.serveRepoIssue(req,
694
                GitRepo(repo), issue, path))
695
            })
696
          })
697
        case 'pull-request':
698
          return self.getRepo(c.repo, function (err, repo) {
699
            if (err) return cb(null,
700
              self.repos.serveRepoNotFound(req, c.project, err))
701
            self.pullReqs.get(id, function (err, pr) {
702
              if (err) return cb(null, self.serveError(req, err))
703
              cb(null, self.repos.pulls.serveRepoPullReq(req,
704
                GitRepo(repo), pr, path))
705
            })
706
          })
707
        case 'issue-edit':
708
          if (ref.isMsgId(c.issue)) {
709
            return self.pullReqs.get(c.issue, function (err, issue) {
710
              if (err) return cb(err)
711
              self.getRepo(issue.project, function (err, repo) {
712
                if (err) {
713
                  if (!repo) return cb(null,
714
                    self.repos.serveRepoNotFound(req, c.repo, err))
715
                  return cb(null, self.serveError(req, err))
716
                }
717
                cb(null, self.repos.serveIssueOrPullRequest(req, GitRepo(repo),
718
                  issue, path, id))
719
              })
720
            })
721
          }
722
          // fallthrough
723
        case 'post':
724
          if (ref.isMsgId(c.issue) && ref.isMsgId(c.repo)) {
725
            // comment on an issue
726
            var done = multicb({ pluck: 1, spread: true })
727
            self.getRepo(c.repo, done())
728
            self.pullReqs.get(c.issue, done())
729
            return done(function (err, repo, issue) {
730
              if (err) {
731
                if (!repo) return cb(null,
732
                  self.repos.serveRepoNotFound(req, c.repo, err))
733
                return cb(null, self.serveError(req, err))
734
              }
735
              cb(null, self.repos.serveIssueOrPullRequest(req, GitRepo(repo),
736
                issue, path, id))
737
            })
738
          } else if (ref.isMsgId(c.root)) {
739
            // comment on issue from patchwork?
740
            return self.getMsg(c.root, function (err, root) {
741
              if (err) return cb(null, self.serveError(req, err))
742
              var repoId = root.content.repo || root.content.project
743
              if (!ref.isMsgId(repoId))
744
                return cb(null, self.serveGenericMessage(req, id, msg, path))
745
              self.getRepo(repoId, function (err, repo) {
746
                if (err) return cb(null, self.serveError(req, err))
747
                switch (root.content && root.content.type) {
748
                  case 'issue':
749
                    return self.issues.get(c.root, function (err, issue) {
750
                      if (err) return cb(null, self.serveError(req, err))
751
                      return cb(null,
752
                        self.repos.issues.serveRepoIssue(req,
753
                          GitRepo(repo), issue, path, id))
754
                    })
755
                  case 'pull-request':
756
                    return self.pullReqs.get(c.root, function (err, pr) {
757
                      if (err) return cb(null, self.serveError(req, err))
758
                      return cb(null,
759
                        self.repos.pulls.serveRepoPullReq(req,
760
                          GitRepo(repo), pr, path, id))
761
                    })
762
                }
763
              })
764
            })
765
          }
766
          // fallthrough
767
        default:
768
          if (ref.isMsgId(c.repo))
769
            return self.getRepo(c.repo, function (err, repo) {
770
              if (err) return cb(null,
771
                self.repos.serveRepoNotFound(req, c.repo, err))
772
              cb(null, self.repos.serveRepoSomething(req,
773
                GitRepo(repo), id, msg, path))
774
            })
775
          else
776
            return cb(null, self.serveGenericMessage(req, id, msg, path))
777
      }
778
    })
779
  })
780
}
781
782
G.serveGenericMessage = function (req, id, msg, path) {
783
  return this.serveTemplate(req, id)(pull.once(
784
    '<section><h2>' + u.link([id]) + '</h2>' +
785
    u.json(msg) +
786
    '</section>'))
787
}
788
789
/* Search */
790
791
G.serveSearch = function (req) {
792
  var self = this
793
  var q = String(req._u.query.q || '')
794
  if (!q) return this.serveIndex(req)
795
  var qId = q.replace(/^ssb:\/*/, '')
796
  if (ref.type(qId))
797
    return this.serveRedirect(req, encodeURIComponent(qId))
798
799
  var search = new RegExp(q, 'i')
800
  return this.serveTemplate(req, req._t('Search') + ' &middot; ' + q, 200)(
801
    this.renderFeed(req, null, function (opts) {
802
      return function (read) {
803
        return pull(
804
          many([
805
            self.getMsgs('about', opts),
806
            read
807
          ]),
808
          pull.filter(function (msg) {
809
            var c = msg.value.content
810
            return (
811
              search.test(msg.key) ||
812
              c.text && search.test(c.text) ||
813
              c.name && search.test(c.name) ||
814
              c.title && search.test(c.title))
815
          })
816
        )
817
      }
818
    })
819
  )
820
}
821
822
G.getMsgs = function (type, opts) {
823
  return this.ssb.messagesByType({
824
    type: type,
825
    reverse: opts.reverse,
826
    lt: opts.lt,
827
    gt: opts.gt,
828
  })
829
}
830
831
G.serveBlobNotFound = function (req, repoId, err) {
832
  return this.serveTemplate(req, req._t('error.BlobNotFound'), 404)(pull.once(
833
    '<h2>' + req._t('error.BlobNotFound') + '</h2>' +
834
    '<p>' + req._t('error.BlobNotFoundInRepo', {
835
      repo: u.link([repoId])
836
    }) + '</p>' +
837
    '<pre>' + u.escape(err.stack) + '</pre>'
838
  ))
839
}
840
841
G.serveRaw = function (length, contentType) {
842
  var headers = {
843
    'Content-Type': contentType || 'text/plain; charset=utf-8',
844
    'Cache-Control': 'max-age=31536000'
845
  }
846
  if (length != null)
847
    headers['Content-Length'] = length
848
  return function (read) {
849
    return cat([pull.once([200, headers]), read])
850
  }
851
}
852
853
G.getBlob = function (req, key, cb) {
854
  var blobs = this.ssb.blobs
855
  blobs.want(key, function (err, got) {
856
    if (err) cb(err)
857
    else if (!got) cb(new Error(req._t('error.MissingBlob', {key: key})))
858
    else cb(null, blobs.get(key))
859
  })
860
}
861
862
G.serveBlob = function (req, key) {
863
  var self = this
864
  return u.readNext(function (cb) {
865
    self.getBlob(req, key, function (err, read) {
866
      if (err) cb(null, self.serveError(req, err))
867
      else if (!read) cb(null, self.serve404(req))
868
      else cb(null, identToResp(read))
869
    })
870
  })
871
}
872
873
function identToResp(read) {
874
  var ended, type, queue
875
  var id = ident(function (_type) {
876
    type = _type && mime.lookup(_type)
877
  })(read)
878
  return function (end, cb) {
879
    if (ended) return cb(ended)
880
    if (end) id(end, function (end) {
881
      cb(end === true ? null : end)
882
    })
883
    else if (queue) {
884
      var _queue = queue
885
      queue = null
886
      cb(null, _queue)
887
    }
888
    else if (!type)
889
      id(null, function (end, data) {
890
        if (ended = end) return cb(end)
891
        queue = data
892
        cb(null, [200, {
893
          'Content-Type': type || 'text/plain; charset=utf-8',
894
          'Cache-Control': 'max-age=31536000'
895
        }])
896
      })
897
    else
898
      id(null, cb)
899
  }
900
}
901