git ssb

1
var url = require('url')
2
var pull = require('pull-stream')
3
var once = pull.once
4
var cat = require('pull-cat')
5
var paramap = require('pull-paramap')
6
var multicb = require('multicb')
7
var JsDiff = require('diff')
8
var GitRepo = require('pull-git-repo')
9
var gitPack = require('pull-git-pack')
10
var u = require('../util')
11
var paginate = require('pull-paginate')
12
var markdown = require('../markdown')
13
var forms = require('../forms')
14
var ssbRef = require('ssb-ref')
15
var zlib = require('zlib')
16
var toPull = require('stream-to-pull-stream')
17
var h = require('pull-hyperscript')
18
var getObjectMsgId = require('../../lib/obj-msg-id')
19
20
function extend(obj, props) {
21
  for (var k in props)
22
    obj[k] = props[k]
23
  return obj
24
}
25
26
module.exports = function (web) {
27
  return new RepoRoutes(web)
28
}
29
30
function RepoRoutes(web) {
31
  this.web = web
32
  this.issues = require('./issues')(this, web)
33
  this.pulls = require('./pulls')(this, web)
34
}
35
36
var R = RepoRoutes.prototype
37
38
function getRepoObjectString(repo, id, mode, cb) {
39
  if (!id) return cb(null, '')
40
  if (mode == 0160000) return cb(null,
41
    'Subproject commit ' + id)
42
  repo.getObjectFromAny(id, function (err, obj) {
43
    if (err) return cb(err)
44
    u.readObjectString(obj, cb)
45
  })
46
}
47
48
/* Repo */
49
50
R.getLineCommentThreads = function (req, repo, updateId, commitId, filename, cb) {
51
  var self = this
52
  var sbot = self.web.ssb
53
  var lineCommentThreads = {}
54
  pull(
55
    sbot.backlinks ? sbot.backlinks.read({
56
      query: [
57
        {$filter: {
58
          dest: updateId,
59
          value: {
60
            content: {
61
              type: 'line-comment',
62
              repo: repo.id,
63
              updateId: updateId,
64
              commitId: commitId,
65
              filePath: filename
66
            }
67
          }
68
        }}
69
      ]
70
    }) : pull(
71
      sbot.links({
72
        dest: updateId,
73
        rel: 'updateId',
74
        values: true
75
      }),
76
      pull.filter(function (msg) {
77
        var c = msg && msg.value && msg.value.content
78
        return c && c.type === 'line-comment'
79
          && c.updateId === updateId
80
          && c.commitId === commitId
81
          && c.filePath === filename
82
      })
83
    ),
84
    paramap(function (msg, cb) {
85
      pull(
86
        self.renderThread(req, repo, msg),
87
        pull.collect(function (err, parts) {
88
          if (err) return cb(err)
89
          cb(null, {
90
            line: msg.value.content.line,
91
            html: parts.join(''),
92
          })
93
        })
94
      )
95
    }, 4),
96
    pull.drain(function (thread) {
97
      lineCommentThreads[thread.line] = thread.html
98
    }, function (err) {
99
      if (err) return cb(err)
100
      cb(null, lineCommentThreads)
101
    })
102
  )
103
}
104
105
R.renderThread = function (req, repo, msg) {
106
  var newestMsg = msg
107
  var root = msg.key
108
  var self = this
109
  return h('div', [
110
    pull(
111
      cat([
112
        pull.once(msg),
113
        self.web.ssb.links({
114
          dest: root,
115
          values: true
116
        }),
117
      ]),
118
      pull.unique('key'),
119
      u.decryptMessages(self.web.ssb),
120
      u.readableMessages(),
121
      self.web.addAuthorName(),
122
      u.sortMsgs(),
123
      pull.filter(function (msg) {
124
        var c = msg && msg.value && msg.value.content
125
        return c && (c.type === 'post'
126
          || msg.key === root)
127
      }),
128
      pull.through(function (msg) {
129
        // TODO: correctly calculate the thread branches
130
        if (msg.value
131
        && msg.value.timestamp > newestMsg.value.timestamp)
132
          newestMsg = msg
133
      }),
134
      pull.map(function (msg) {
135
        return self.renderLineComment(req, repo, msg)
136
      })
137
    ),
138
    self.web.isPublic ? '' :
139
      pull.once(forms.lineCommentReply(req, root, newestMsg.key))
140
  ])
141
}
142
143
R.renderLineComment = function (req, repo, msg) {
144
  var c = msg && msg.value && msg.value.content
145
  var id = u.msgIdToDomId(msg.key)
146
  return h('section', {class: 'collapse', id: id}, [
147
    h('div', [
148
      u.link([msg.value.author], msg.authorName),
149
      ' ',
150
      h('tt', {class: 'right-bar item-id'}, msg.key),
151
      ' · ',
152
      h('a', {href: u.encodeLink(msg.key) + '#' + id}, new Date(msg.value.timestamp).toLocaleString(req._locale)),
153
    ]),
154
    markdown(c.text, repo)
155
  ])
156
}
157
158
R.serveRepoPage = function (req, repo, path) {
159
  var self = this
160
  var defaultBranch = 'master'
161
  var query = req._u.query
162
163
  if (query.rev != null) {
164
    // Allow navigating revs using GET query param.
165
    // Replace the branch in the path with the rev query value
166
    path[0] = path[0] || 'tree'
167
    path[1] = query.rev
168
    req._u.pathname = u.encodeLink([repo.id].concat(path))
169
    delete req._u.query.rev
170
    delete req._u.search
171
    return self.web.serveRedirect(req, url.format(req._u))
172
  }
173
174
  // get branch
175
  return path[1] ?
176
    R_serveRepoPage2.call(self, req, repo, path) :
177
    u.readNext(function (cb) {
178
      // TODO: handle this in pull-git-repo or ssb-git-repo
179
      repo.getSymRef('HEAD', true, function (err, ref) {
180
        if (err) return cb(err)
181
        repo.resolveRef(ref, function (err, rev) {
182
          path[1] = rev ? ref : null
183
          cb(null, R_serveRepoPage2.call(self, req, repo, path))
184
        })
185
      })
186
    })
187
}
188
189
function R_serveRepoPage2(req, repo, path) {
190
  var branch = path[1]
191
  var filePath = path.slice(2)
192
  switch (path[0]) {
193
    case undefined:
194
    case '':
195
      return this.serveRepoTree(req, repo, branch, [])
196
    case 'activity':
197
      return this.serveRepoActivity(req, repo, branch)
198
    case 'commits':
199
      return this.serveRepoCommits(req, repo, branch)
200
    case 'commit':
201
      return this.serveRepoCommit(req, repo, path[1])
202
    case 'tag':
203
      return this.serveRepoTag(req, repo, branch, filePath)
204
    case 'tree':
205
      return this.serveRepoTree(req, repo, branch, filePath)
206
    case 'blob':
207
      return this.serveRepoBlob(req, repo, branch, filePath)
208
    case 'raw':
209
      return this.serveRepoRaw(req, repo, branch, filePath)
210
    case 'digs':
211
      return this.serveRepoDigs(req, repo)
212
    case 'fork':
213
      return this.serveRepoForkPrompt(req, repo)
214
    case 'forks':
215
      return this.serveRepoForks(req, repo)
216
    case 'issues':
217
      switch (path[1]) {
218
        case 'new':
219
          if (filePath.length == 0)
220
            return this.issues.serveRepoNewIssue(req, repo)
221
          break
222
        default:
223
          return this.issues.serveRepoIssues(req, repo, false)
224
      }
225
    case 'pulls':
226
      return this.issues.serveRepoIssues(req, repo, true)
227
    case 'compare':
228
      return this.pulls.serveRepoCompare(req, repo)
229
    case 'comparing':
230
      return this.pulls.serveRepoComparing(req, repo)
231
    case 'info':
232
      switch (path[1]) {
233
        case 'refs':
234
          return this.serveRepoRefs(req, repo)
235
        default:
236
          return this.web.serve404(req)
237
      }
238
    case 'objects':
239
      switch (path[1]) {
240
        case 'info':
241
          switch (path[2]) {
242
            case 'packs':
243
              return this.serveRepoPacksInfo(req, repo)
244
            default:
245
              return this.web.serve404(req)
246
          }
247
        case 'pack':
248
          return this.serveRepoPack(req, repo, filePath.join('/'))
249
        default:
250
          var hash = path[1] + path[2]
251
          if (hash.length === 40) {
252
            return this.serveRepoObject(req, repo, hash)
253
          }
254
          return this.web.serve404(req)
255
      }
256
    case 'HEAD':
257
      return this.serveRepoHead(req, repo)
258
    default:
259
      return this.web.serve404(req)
260
  }
261
}
262
263
R.serveRepoNotFound = function (req, id, err) {
264
  return this.web.serveTemplate(req, req._t('error.RepoNotFound'), 404)
265
  (pull.values([
266
    '<h2>' + req._t('error.RepoNotFound') + '</h2>',
267
    '<p>' + req._t('error.RepoIdNotFound', id) + '</p>',
268
    '<pre>' + u.escape(err.stack) + '</pre>'
269
  ]))
270
}
271
272
R.serveRepoTemplate = function (req, repo, page, branch, titleTemplate, body) {
273
  var self = this
274
  var gitUrl = 'ssb://' + repo.id
275
  var host = req.headers.host || '127.0.0.1:7718'
276
  var path = '/' + encodeURIComponent(repo.id)
277
  var httpUrl = 'http://' + encodeURI(host) + path
278
  var digsPath = [repo.id, 'digs']
279
  var cloneUrls = '<div class="clone-urls">' +
280
    '<select class="custom-dropdown clone-url-protocol" ' +
281
     'onchange="with(this.nextSibling.firstChild) {' +
282
       'value = this.value; select() }">' +
283
      '<option selected="selected" value="' + gitUrl + '">SSB</option>' +
284
      '<option class="http-clone-url" value="' + httpUrl + '">HTTP</option>' +
285
    '</select>' +
286
    '<div class="clone-url-wrapper">' +
287
    '<input class="clone-url" readonly="readonly" ' +
288
      'value="ssb://' + repo.id + '" size="45" ' +
289
      'onclick="this.select()"/>' +
290
    '<script>' +
291
      'var httpOpt = document.querySelector(".http-clone-url")\n' +
292
      'if (location.protocol === "https:") httpOpt.text = "HTTPS"\n' +
293
      'httpOpt.value = location.origin + "' + path + '"\n' +
294
    '</script>' +
295
    '</div>' +
296
    '</div>'
297
298
  var done = multicb({ pluck: 1, spread: true })
299
  self.web.getRepoName(repo.feed, repo.id, done())
300
  self.web.about.getName(repo.feed, done())
301
  self.web.getVotes(repo.id, done())
302
303
  if (repo.upstream) {
304
    self.web.getRepoName(repo.upstream.feed, repo.upstream.id, done())
305
    self.web.about.getName(repo.upstream.feed, done())
306
  }
307
308
  return u.readNext(function (cb) {
309
    done(function (err, repoName, authorName, votes, upstreamName, upstreamAuthorName) {
310
      if (err) return cb(null, self.web.serveError(req, err))
311
      var upvoted = votes.upvoters[self.web.myId] > 0
312
      var upstreamLink = !repo.upstream ? '' :
313
        u.link([repo.upstream])
314
      var title = titleTemplate ? titleTemplate
315
        .replace(/%\{repo\}/g, repoName)
316
        .replace(/%\{author\}/g, authorName)
317
        : (authorName ? authorName + '/' : '') + repoName
318
      var isPublic = self.web.isPublic
319
      var isLocal = !isPublic
320
      cb(null, self.web.serveTemplate(req, title)(cat([
321
        h('div', {class: 'repo-title'}, [
322
          h('form', {class: 'right-bar', action: '', method: 'post'}, [
323
            h('strong', {class: 'ml2 mr1'}, u.link(digsPath, votes.upvotes)),
324
            h('button',
325
              extend(
326
                {class: 'btn', name: 'action', value: 'vote'},
327
                isPublic ? {disabled: 'disabled'} : {type: 'submit'}
328
              ), [
329
                h('i', '✌ '),
330
                h('span', req._t(isLocal && upvoted ? 'Undig' : 'Dig'))
331
              ]
332
            ),
333
            u.when(isLocal, () => cat([
334
              h('input', {type: 'hidden', name: 'value', value: (upvoted ? '0' : '1')}),
335
              h('input', {type: 'hidden', name: 'id', value: u.escape(repo.id)})
336
            ])),
337
            h('a', {href: u.encodeLink([repo.id, 'forks']), title: req._t('Forks'), class: 'ml2 mr1'}, '+'),
338
            u.when(isLocal, () =>
339
              h('button', {class: 'btn', type: 'submit', name: 'action', value: 'fork-prompt'}, [
340
                h('i', '⑂ '),
341
                once(req._t('Fork'))
342
              ])
343
            )
344
          ]),
345
          forms.name(req, isLocal, repo.id, repoName, 'repo-name', null, req._t('repo.Rename'),
346
            h('h2', {class: 'bgslash'},
347
              (authorName ? u.link([repo.feed], authorName) + ' / ' : '') +
348
              u.link([repo.id], repoName) +
349
              (repo.private ? ' ' + u.privateIcon(req) : ''))
350
          ),
351
        ]),
352
        u.when(repo.upstream, () =>
353
          h('small', {class: 'bgslash'}, req._t('ForkedFrom', {
354
            repo: `${u.link([repo.upstream.feed], upstreamAuthorName)} / ${u.link([repo.upstream.id], upstreamName)}`
355
          }))
356
        ),
357
        u.nav([
358
          [[repo.id], req._t('Code'), 'code'],
359
          [[repo.id, 'activity'], req._t('Activity'), 'activity'],
360
          [[repo.id, 'commits', branch||''], req._t('Commits'), 'commits'],
361
          [[repo.id, 'issues'], self.web.indexCache ? req._t('IssuesN', {
362
            count: self.web.indexCache.getIssuesCount(repo.id, '…')
363
          }) : req._t('Issues'), 'issues'],
364
          [[repo.id, 'pulls'], self.web.indexCache ? req._t('PullRequestsN', {
365
            count: self.web.indexCache.getPRsCount(repo.id, '…')
366
          }) : req._t('PullRequests'), 'pulls']
367
        ], page, cloneUrls),
368
        body
369
      ])
370
      ))
371
    })
372
  })
373
}
374
375
R.renderEmptyRepo = function (req, repo) {
376
  if (repo.feed != this.web.myId)
377
    return h('section', [
378
      h('h3', req._t('EmptyRepo'))
379
    ])
380
381
  var gitUrl = 'ssb://' + repo.id
382
  return h('section', [
383
    h('h3', req._t('initRepo.GettingStarted')),
384
    h('h4', req._t('initRepo.CreateNew')),
385
    preInitRepo(req, gitUrl),
386
    h('h4', req._t('initRepo.PushExisting')),
387
    preRemote(gitUrl)
388
  ])
389
}
390
391
var preInitRepo = (req, gitUrl) => h('pre',
392
`touch ${req._t('initRepo.README')}.md
393
git init
394
git add ${req._t('initRepo.README')}.md
395
git commit -m ${req._t('initRepo.InitialCommit')}
396
git remote add origin ${gitUrl}
397
git push -u origin master`)
398
399
var preRemote = (gitUrl) => h('pre',
400
`git remote add origin ${gitUrl}
401
git push -u origin master`)
402
403
404
R.serveRepoTree = function (req, repo, rev, path) {
405
  var type = repo.isCommitHash(rev) ? 'Tree' : 'Branch'
406
  var title =
407
    (path.length ? `${path.join('/')} · ` : '') +
408
    '%{author}/%{repo}' +
409
    (repo.head == `refs/heads/${rev}` ? '' : `@${rev}`)
410
411
  return this.serveRepoTemplate(req, repo, 'code', rev, title,
412
    u.readNext((cb) => {
413
      if (!rev) return cb(null, this.renderEmptyRepo(req, repo))
414
      repo.getLatestAvailableRev(rev, 10e3, (err, revGot, numSkipped) => {
415
        if (err) return cb(err)
416
        cb(null, cat([
417
          h('section', {class: 'branch-info light-grey', method: 'get'}, [
418
            h('form', {action: '', method: 'get'},
419
              h('h3', {class: 'rev-menu-line'}, [
420
                h('span', `${req._t(type)}: `),
421
                this.revMenu(req, repo, rev)
422
              ])
423
            ),
424
            u.when(numSkipped > 0, () =>
425
              h('div', {class: 'missing-blobs-warning mt2'},
426
                h('em', req._t('missingBlobsWarning', numSkipped))
427
              )
428
            ),
429
            u.when(type === 'Branch', () => renderRepoLatest(req, repo, revGot))
430
          ]),
431
          h('section', {class: 'files'}, renderRepoTree(req, repo, revGot, path)),
432
          this.renderRepoReadme(req, repo, revGot, path)
433
        ]))
434
      })
435
    }))
436
}
437
438
/* Repo activity */
439
440
R.serveRepoActivity = function (req, repo, branch) {
441
  var self = this
442
  var title = req._t('Activity') + ' · %{author}/%{repo}'
443
  return self.serveRepoTemplate(req, repo, 'activity', branch, title, cat([
444
    h('h3', req._t('Activity')),
445
    pull(
446
      self.web.ssb.links({
447
        dest: repo.id,
448
        rel: 'repo',
449
        values: true
450
      }),
451
      pull.unique('key'),
452
      u.decryptMessages(self.web.ssb),
453
      u.sortMsgs(true),
454
      pull.asyncMap(renderRepoUpdate.bind(self, req, repo, false))
455
    ),
456
    u.readOnce(function (cb) {
457
      var done = multicb({ pluck: 1, spread: true })
458
      self.web.about.getName(repo.feed, done())
459
      self.web.getMsg(repo.id, done())
460
      done(function (err, authorName, msg) {
461
        if (err) return cb(err)
462
        self.web.renderFeedItem(req, {
463
          key: repo.id,
464
          value: msg.value,
465
          authorName: authorName
466
        }, cb)
467
      })
468
    })
469
  ]))
470
}
471
472
function renderRepoUpdate(req, repo, full, msg, cb) {
473
  var c = msg.value.content
474
475
  if (c.type != 'git-update') {
476
    return cb(null, '')
477
    // return renderFeedItem(msg, cb)
478
    // TODO: render post, issue, pull-request
479
  }
480
481
  var branches = []
482
  var tags = []
483
  if (c.refs) for (var name in c.refs) {
484
    var m = name.match(/^refs\/(heads|tags)\/(.*)$/) || [,, name]
485
    ;(m[1] == 'tags' ? tags : branches)
486
      .push({name: m[2], value: c.refs[name]})
487
  }
488
  var numObjects = c.objects ? Object.keys(c.objects).length : 0
489
490
  var dateStr = new Date(msg.value.timestamp).toLocaleString(req._locale)
491
492
  this.web.about.getName(msg.value.author, function (err, name) {
493
    if (err) return cb(err)
494
    cb(null, '<section class="collapse">' +
495
      u.link([msg.key], dateStr) + '<br>' +
496
      u.link([msg.value.author], name) + '<br>' +
497
498
      branches.map(function (update) {
499
        if (!update.value) {
500
          return '<s>' + u.escape(update.name) + '</s><br/>'
501
        } else {
502
          var commitLink = u.link([repo.id, 'commit', update.value])
503
          var branchLink = u.link([repo.id, 'tree', update.name])
504
          return branchLink + ' &rarr; <tt>' + commitLink + '</tt><br/>'
505
        }
506
      }).join('') +
507
      tags.map(function (update) {
508
        return update.value
509
          ? u.link([repo.id, 'tag', update.value], update.name)
510
          : '<s>' + u.escape(update.name) + '</s>'
511
      }).join(', ') +
512
      '</section>')
513
  })
514
}
515
516
/* Repo commits */
517
518
R.serveRepoCommits = function (req, repo, branch) {
519
  var query = req._u.query
520
  var title = req._t('Commits') + ' · %{author}/%{repo}'
521
  return this.serveRepoTemplate(req, repo, 'commits', branch, title, cat([
522
    pull.once('<h3>' + req._t('Commits') + '</h3>'),
523
    pull(
524
      repo.readLog(query.start || branch),
525
      pull.take(20),
526
      paramap(repo.getCommitParsed.bind(repo), 8),
527
      paginate(
528
        !query.start ? '' : function (first, cb) {
529
          cb(null, '&hellip;')
530
        },
531
        pull.map(renderCommit.bind(this, req, repo)),
532
        function (commit, cb) {
533
          cb(null, commit.parents && commit.parents[0] ?
534
            '<a href="?start=' + commit.id + '">' +
535
              req._t('Older') + '</a>' : '')
536
        }
537
      )
538
    )
539
  ]))
540
}
541
542
function renderCommit(req, repo, commit) {
543
  var commitPath = [repo.id, 'commit', commit.id]
544
  var treePath = [repo.id, 'tree', commit.id]
545
  return '<section class="collapse">' +
546
    '<strong>' + u.link(commitPath, commit.title) + '</strong><br>' +
547
    '<tt>' + commit.id + '</tt> ' +
548
      u.link(treePath, req._t('Tree')) + '<br>' +
549
    u.escape(commit.author.name) + ' &middot; ' +
550
    commit.author.date.toLocaleString(req._locale) +
551
    (commit.separateAuthor ? '<br>' + req._t('CommittedOn', {
552
      name: u.escape(commit.committer.name),
553
      date: commit.committer.date.toLocaleString(req._locale)
554
    }) : '') +
555
    '</section>'
556
}
557
558
/* Branch menu */
559
560
R.formatRevOptions = function (currentName) {
561
  return function (name) {
562
    var htmlName = u.escape(name)
563
    return '<option value="' + htmlName + '"' +
564
      (name == currentName ? ' selected="selected"' : '') +
565
      '>' + htmlName + '</option>'
566
  }
567
}
568
569
R.formatRevType = function(req, type) {
570
  return (
571
    type == 'heads' ? req._t('Branches') :
572
    type == 'tags' ? req._t('Tags') :
573
    type)
574
}
575
576
R.revMenu = function (req, repo, currentName) {
577
  var self = this
578
  return u.readOnce(function (cb) {
579
    repo.getRefNames(function (err, refs) {
580
      if (err) return cb(err)
581
      cb(null, '<select class="custom-dropdown" name="rev" onchange="this.form.submit()">' +
582
        Object.keys(refs).map(function (group) {
583
          return '<optgroup ' +
584
            'label="' + self.formatRevType(req, group) + '">' +
585
            refs[group].map(self.formatRevOptions(currentName)).join('') +
586
            '</optgroup>'
587
        }).join('') +
588
        '</select><noscript> ' +
589
        '<input type="submit" value="' + req._t('Go') + '"/></noscript>')
590
    })
591
  })
592
}
593
594
/* Repo tree */
595
596
function renderRepoLatest(req, repo, rev) {
597
  if (!rev) return pull.empty()
598
  return u.readOnce(function (cb) {
599
    repo.getCommitParsed(rev, function (err, commit) {
600
      if (err) return cb(err)
601
      var commitPath = [repo.id, 'commit', commit.id]
602
      var actor = commit.separateAuthor ? 'author' : 'committer'
603
      var actionKey = actor.slice(0,1).toUpperCase() + actor.slice(1) + 'ReleasedCommit'
604
      cb(null,
605
        '<div class="mt2">' +
606
          '<span>' +
607
            req._t(actionKey, {
608
              name: u.escape(commit[actor].name),
609
              commitName: u.link(commitPath, commit.title)
610
            }) +
611
          '</span>' +
612
          '<tt class="float-right">' +
613
            req._t('LatestOn', {
614
              commitId: commit.id.slice(0, 7),
615
              date: commit[actor].date.toLocaleString(req._locale)
616
            }) +
617
          '</tt>' +
618
        '</div>'
619
      )
620
    })
621
  })
622
}
623
624
// breadcrumbs
625
function linkPath(basePath, path) {
626
  path = path.slice()
627
  var last = path.pop()
628
  return path.map(function (dir, i) {
629
    return u.link(basePath.concat(path.slice(0, i+1)), dir)
630
  }).concat(last).join(' / ')
631
}
632
633
function renderRepoTree(req, repo, rev, path) {
634
  var source =  repo.readDir(rev,path)
635
  var pathLinks = path.length === 0 ? '' :
636
    ': ' + linkPath([repo.id, 'tree'], [rev].concat(path))
637
638
  var location = once('')
639
  if (path.length !== 0) {
640
    var link = linkPath([repo.id, 'tree'], [rev].concat(path))
641
    location = h('div', {class: 'fileLocation'}, `${req._t('Files')}: ${link}`)
642
  }
643
644
  return cat([
645
    location,
646
    h('table', {class: "files w-100"}, u.sourceMap(source, file =>
647
      h('tr', [
648
        h('td', [
649
          h('i', fileIcon(file))
650
        ]),
651
        h('td', u.link(filePath(file), file.name))
652
      ])
653
    ))
654
  ])
655
656
  function fileIcon(file) {
657
    return fileType(file) === 'tree' ? '📁' : '📄'
658
  }
659
660
  function filePath(file) {
661
    var type = fileType(file)
662
    return [repo.id, type, rev].concat(path, file.name)
663
  }
664
665
  function fileType(file) {
666
    if (file.mode === 040000) return 'tree'
667
    else if (file.mode === 0160000) return 'commit'
668
    else return 'blob'
669
  }
670
}
671
672
/* Repo readme */
673
674
R.renderRepoReadme = function (req, repo, branch, path) {
675
  var self = this
676
  return u.readNext(function (cb) {
677
    pull(
678
      repo.readDir(branch, path),
679
      pull.filter(function (file) {
680
        return /readme(\.|$)/i.test(file.name)
681
      }),
682
      pull.take(1),
683
      pull.collect(function (err, files) {
684
        if (err) return cb(null, pull.empty())
685
        var file = files[0]
686
        if (!file)
687
          return cb(null, pull.once(path.length ? '' :
688
            '<p>' + req._t('NoReadme') + '</p>'))
689
        repo.getObjectFromAny(file.id, function (err, obj) {
690
          if (err) return cb(err)
691
          cb(null, cat([
692
            pull.once('<section class="readme">'),
693
            self.web.renderObjectData(obj, file.name, repo, branch, path),
694
            pull.once('</section>')
695
          ]))
696
        })
697
      })
698
    )
699
  })
700
}
701
702
/* Repo commit */
703
704
R.serveRepoCommit = function (req, repo, rev) {
705
  var self = this
706
  return u.readNext(function (cb) {
707
    repo.getCommitParsed(rev, function (err, commit) {
708
      if (err) return cb(null,
709
        self.serveRepoTemplate(req, repo, null, rev, `%{author}/%{repo}@${rev}`,
710
          pull.once(self.web.renderError(err))))
711
      getObjectMsgId(repo, commit.id, function (err, objMsgId) {
712
        if (err) return cb(null,
713
          self.serveRepoTemplate(req, repo, null, rev, `%{author}/%{repo}@${rev}`,
714
            pull.once(self.web.renderError(err))))
715
        var commitPath = [repo.id, 'commit', commit.id]
716
        var treePath = [repo.id, 'tree', commit.id]
717
        var title = u.escape(commit.title) + ' · ' +
718
          '%{author}/%{repo}@' + commit.id.substr(0, 8)
719
        cb(null, self.serveRepoTemplate(req, repo, null, rev, title, cat([
720
          pull.once(
721
          '<h3>' + u.link(commitPath,
722
            req._t('CommitRev', {rev: rev})) + '</h3>' +
723
          '<section class="collapse">' +
724
          '<div class="right-bar">' +
725
            u.link(treePath, req._t('BrowseFiles')) +
726
          '</div>' +
727
          '<h4>' + u.linkify(u.escape(commit.title)) + '</h4>' +
728
          (commit.body ? u.linkify(u.pre(commit.body)) : '') +
729
          (commit.separateAuthor ? req._t('AuthoredOn', {
730
            name: u.escape(commit.author.name),
731
            date: commit.author.date.toLocaleString(req._locale)
732
          }) + '<br/>' : '') +
733
          req._t('CommittedOn', {
734
            name: u.escape(commit.committer.name),
735
            date: commit.committer.date.toLocaleString(req._locale)
736
          }) + '<br/>' +
737
          commit.parents.map(function (id) {
738
            return req._t('Parent') + ': ' +
739
              u.link([repo.id, 'commit', id], id)
740
          }).join('<br>') +
741
          '</section>' +
742
          '<section><h3>' + req._t('FilesChanged') + '</h3>'),
743
          // TODO: show diff from all parents (merge commits)
744
          self.renderDiffStat(req, [repo, repo], [commit.parents[0], commit.id], commit.id, objMsgId),
745
          pull.once('</section>')
746
        ])))
747
      })
748
    })
749
  })
750
}
751
752
/* Repo tag */
753
754
R.serveRepoTag = function (req, repo, rev, path) {
755
  var self = this
756
  return u.readNext(function (cb) {
757
    repo.getTagParsed(rev, function (err, tag) {
758
      if (err) {
759
        if (/Expected tag, got commit/.test(err.message)) {
760
          req._u.pathname = u.encodeLink([repo.id, 'commit', rev].concat(path))
761
          return cb(null, self.web.serveRedirect(req, url.format(req._u)))
762
        }
763
        return cb(null, self.web.serveError(req, err))
764
      }
765
766
      var title = req._t('TagName', {
767
        tag: u.escape(tag.tag)
768
      }) + ' · %{author}/%{repo}'
769
      var body = (tag.title + '\n\n' +
770
        tag.body.replace(/-----BEGIN PGP SIGNATURE-----\n[^.]*?\n-----END PGP SIGNATURE-----\s*$/, '')).trim()
771
      var date = tag.tagger.date
772
      cb(null, self.serveRepoTemplate(req, repo, 'tags', tag.object, title,
773
        pull.once(
774
          '<section class="collapse">' +
775
          '<h3>' + u.link([repo.id, 'tag', rev], tag.tag) + '</h3>' +
776
          req._t('TaggedOn', {
777
            name: u.escape(tag.tagger.name),
778
            date: date && date.toLocaleString(req._locale)
779
          }) + '<br/>' +
780
        u.link([repo.id, tag.type, tag.object]) +
781
        u.linkify(u.pre(body)) +
782
        '</section>')))
783
    })
784
  })
785
}
786
787
788
/* Diff stat */
789
790
R.renderDiffStat = function (req, repos, treeIds, commit, updateId) {
791
  var self = this
792
  if (treeIds.length == 0) treeIds = [null]
793
  var id = treeIds[0]
794
  var lastI = treeIds.length - 1
795
  var oldTree = treeIds[0]
796
  var changedFiles = []
797
  var source = GitRepo.diffTrees(repos, treeIds, true)
798
799
  return cat([
800
    h('table', u.sourceMap(source, item => {
801
      var filename = u.escape(item.filename = item.path.join('/'))
802
      var oldId = item.id && item.id[0]
803
      var newId = item.id && item.id[lastI]
804
      var oldMode = item.mode && item.mode[0]
805
      var newMode = item.mode && item.mode[lastI]
806
      var action =
807
        !oldId && newId ? req._t('action.added') :
808
        oldId && !newId ? req._t('action.deleted') :
809
        oldMode != newMode ? req._t('action.changedMode', {
810
          old: oldMode.toString(8),
811
          new: newMode.toString(8)
812
        }) : req._t('changed')
813
      if (item.id)
814
        changedFiles.push(item)
815
      var blobsPath = item.id[1]
816
        ? [repos[1].id, 'blob', treeIds[1]]
817
        : [repos[0].id, 'blob', treeIds[0]]
818
      var rawsPath = item.id[1]
819
        ? [repos[1].id, 'raw', treeIds[1]]
820
        : [repos[0].id, 'raw', treeIds[0]]
821
      item.blobPath = blobsPath.concat(item.path)
822
      item.rawPath = rawsPath.concat(item.path)
823
      var fileHref = item.id ?
824
        '#' + encodeURIComponent(item.path.join('/')) :
825
        u.encodeLink(item.blobPath)
826
827
      return h('tr', [
828
        h('td', [
829
          h('a', {href: fileHref}, filename)
830
        ]),
831
        h('td', action)
832
      ])
833
    })),
834
    pull(
835
      pull.values(changedFiles),
836
      paramap(function (item, cb) {
837
        var extension = u.getExtension(item.filename)
838
        if (extension in u.imgMimes) {
839
          var filename = u.escape(item.filename)
840
          return cb(null,
841
            '<pre><table class="code">' +
842
            '<tr><th id="' + u.escape(item.filename) + '">' +
843
              filename + '</th></tr>' +
844
            '<tr><td><img src="' + u.encodeLink(item.rawPath) + '"' +
845
            ' alt="' + filename + '"/></td></tr>' +
846
            '</table></pre>')
847
        }
848
        var done = multicb({ pluck: 1, spread: true })
849
        var mode0 = item.mode && item.mode[0]
850
        var modeI = item.mode && item.mode[lastI]
851
        var isSubmodule = (modeI == 0160000)
852
        var repo = repos[1]
853
        getRepoObjectString(repos[0], item.id[0], mode0, done())
854
        getRepoObjectString(repos[1], item.id[lastI], modeI, done())
855
        self.getLineCommentThreads(req, repo, updateId, commit, item.filename, done())
856
        done(function (err, strOld, strNew, lineCommentThreads) {
857
          if (err) return cb(err)
858
          cb(null, htmlLineDiff(req, repo, updateId, commit, item.filename, item.filename,
859
            strOld, strNew,
860
            u.encodeLink(item.blobPath), !isSubmodule, lineCommentThreads))
861
        })
862
      }, 4)
863
    )
864
  ])
865
}
866
867
function htmlLineDiff(req, repo, updateId, commit, filename, anchor, oldStr, newStr, blobHref,
868
    showViewLink, lineCommentThreads) {
869
  return '<div class="code-wrap"><table class="code">' +
870
    '<tr><th colspan=3 id="' + u.escape(anchor) + '">' + filename +
871
    (showViewLink === false ? '' :
872
      '<span class="right-bar">' +
873
        '<a href="' + blobHref + '">' + req._t('View') + '</a> ' +
874
      '</span>') +
875
    '</th></tr>' +
876
    (oldStr.length + newStr.length > 200000
877
      ? '<tr><td class="diff-info" colspan=3>' + req._t('diff.TooLarge') + '<br>' +
878
        req._t('diff.OldFileSize', {bytes: oldStr.length}) + '<br>' +
879
        req._t('diff.NewFileSize', {bytes: newStr.length}) + '</td></tr>'
880
      : tableDiff(req, repo, updateId, commit, oldStr, newStr, filename, lineCommentThreads)) +
881
    '</table></div>'
882
}
883
884
function tableDiff(req, repo, updateId, commit, oldStr, newStr, filename, lineCommentThreads) {
885
  var query = req._u.query
886
  var diff = JsDiff.structuredPatch('', '', oldStr, newStr)
887
  var groups = diff.hunks.map(function (hunk) {
888
    var oldLine = hunk.oldStart
889
    var newLine = hunk.newStart
890
    var header = '<tr class="diff-hunk-header"><td colspan=2></td><td>' +
891
      '@@ -' + oldLine + ',' + hunk.oldLines + ' ' +
892
      '+' + newLine + ',' + hunk.newLines + ' @@' +
893
      '</td></tr>'
894
    return [header].concat(hunk.lines.map(function (line) {
895
      var s = line[0]
896
      if (s == '\\') return
897
      var html = u.highlight(line, u.getExtension(filename))
898
      var trClass = s == '+' ? 'diff-new' : s == '-' ? 'diff-old' : ''
899
      var lineNums = [s == '+' ? '' : oldLine++, s == '-' ? '' : newLine++]
900
      var id = [filename].concat(lineNums).join('-')
901
      var newLineNum = lineNums[lineNums.length-1]
902
      return '<tr id="' + u.escape(id) + '" class="' + trClass + '">' +
903
        lineNums.map(function (num, i) {
904
          var idEnc = encodeURIComponent(id)
905
          return '<td class="code-linenum">' +
906
            (num ? '<a href="#' + idEnc + '">' +
907
              num + '</a>' +
908
              (updateId && i === lineNums.length-1 && s !== '-' ?
909
                // TODO: use a more descriptive icon for the comment action
910
                ' <a href="?comment=' + idEnc + '#' + idEnc + '">…</a>'
911
              : '')
912
            : '') + '</td>'
913
        }).join('') +
914
        '<td class="code-text">' + html + '</td></tr>' +
915
        (commit && query.comment === id ?
916
          '<tr><td colspan=4>' +
917
            forms.lineComment(req, repo, updateId, commit, filename, newLineNum) +
918
          '</td></tr>'
919
        : '') +
920
        (lineCommentThreads[newLineNum] ? 
921
          '<tr><td colspan=4>' +
922
            lineCommentThreads[newLineNum] +
923
          '</td></tr>'
924
        : '')
925
    }))
926
  })
927
  return [].concat.apply([], groups).join('')
928
}
929
930
/* An unknown message linking to a repo */
931
932
R.serveRepoSomething = function (req, repo, id, msg, path) {
933
  return this.serveRepoTemplate(req, repo, null, null, null,
934
    pull.once('<section><h3>' + u.link([id]) + '</h3>' +
935
      u.json(msg) + '</section>'))
936
}
937
938
/* Repo update */
939
940
function objsArr(objs) {
941
  return Array.isArray(objs) ? objs :
942
    Object.keys(objs).map(function (sha1) {
943
      var obj = Object.create(objs[sha1])
944
      obj.sha1 = sha1
945
      return obj
946
    })
947
}
948
949
R.serveRepoUpdate = function (req, repo, msg, path) {
950
  var self = this
951
  var raw = req._u.query.raw != null
952
  var title = req._t('Update') + ' · %{author}/%{repo}'
953
  var c = msg.value.content
954
955
  if (raw)
956
    return self.serveRepoTemplate(req, repo, 'activity', null, title, pull.once(
957
      '<a href="?" class="raw-link header-align">' +
958
        req._t('Info') + '</a>' +
959
      '<h3>' + req._t('Update') + '</h3>' +
960
      '<section class="collapse">' +
961
        u.json(msg) + '</section>'))
962
963
  // convert packs to old single-object style
964
  if (c.indexes) {
965
    for (var i = 0; i < c.indexes.length; i++) {
966
      c.packs[i] = {
967
        pack: {link: c.packs[i].link},
968
        idx: c.indexes[i]
969
      }
970
    }
971
  }
972
973
  var commits = cat([
974
    c.objects && pull(
975
      pull.values(c.objects),
976
      pull.filter(function (obj) { return obj.type == 'commit' }),
977
      paramap(function (obj, cb) {
978
        self.web.getBlob(req, obj.link || obj.key, function (err, readObject) {
979
          if (err) return cb(err)
980
          GitRepo.getCommitParsed({read: readObject}, cb)
981
        })
982
      }, 8)
983
    ),
984
    c.packs && pull(
985
      pull.values(c.packs),
986
      paramap(function (pack, cb) {
987
        var done = multicb({ pluck: 1, spread: true })
988
        self.web.getBlob(req, pack.pack.link, done())
989
        self.web.getBlob(req, pack.idx.link, done())
990
        done(function (err, readPack, readIdx) {
991
          if (err) return cb(self.web.renderError(err))
992
          cb(null, gitPack.decodeWithIndex(repo, readPack, readIdx))
993
        })
994
      }, 4),
995
      pull.flatten(),
996
      pull.asyncMap(function (obj, cb) {
997
        if (obj.type == 'commit')
998
          GitRepo.getCommitParsed(obj, cb)
999
        else
1000
          pull(obj.read, pull.drain(null, cb))
1001
      }),
1002
      pull.filter()
1003
    )
1004
  ])
1005
1006
  return self.serveRepoTemplate(req, repo, 'activity', null, title, cat([
1007
    pull.once('<a href="?raw" class="raw-link header-align">' +
1008
      req._t('Data') + '</a>' +
1009
      '<h3>' + req._t('Update') + '</h3>'),
1010
    pull(
1011
      pull.once(msg),
1012
      pull.asyncMap(renderRepoUpdate.bind(self, req, repo, true))
1013
    ),
1014
    (c.objects || c.packs) &&
1015
      pull.once('<h3>' + req._t('Commits') + '</h3>'),
1016
    pull(commits, pull.map(function (commit) {
1017
      return renderCommit(req, repo, commit)
1018
    }))
1019
  ]))
1020
}
1021
1022
/* Blob */
1023
1024
R.serveRepoBlob = function (req, repo, rev, path) {
1025
  var self = this
1026
  return u.readNext(function (cb) {
1027
    repo.getFile(rev, path, function (err, object) {
1028
      if (err) return cb(null, self.web.serveBlobNotFound(req, repo.id, err))
1029
      var type = repo.isCommitHash(rev) ? 'Tree' : 'Branch'
1030
      var pathLinks = path.length === 0 ? '' :
1031
        ': ' + linkPath([repo.id, 'tree'], [rev].concat(path))
1032
      var rawFilePath = [repo.id, 'raw', rev].concat(path)
1033
      var dirPath = path.slice(0, path.length-1)
1034
      var filename = path[path.length-1]
1035
      var extension = u.getExtension(filename)
1036
      var title = (path.length ? path.join('/') + ' · ' : '') +
1037
        '%{author}/%{repo}' +
1038
        (repo.head == 'refs/heads/' + rev ? '' : '@' + rev)
1039
      cb(null, self.serveRepoTemplate(req, repo, 'code', rev, title, cat([
1040
        pull.once('<section><form action="" method="get">' +
1041
          '<h3>' + req._t(type) + ': ' + rev + ' '),
1042
        self.revMenu(req, repo, rev),
1043
        pull.once('</h3></form>'),
1044
        type == 'Branch' && renderRepoLatest(req, repo, rev),
1045
        pull.once('</section><section class="collapse">' +
1046
          '<h3>' + req._t('Files') + pathLinks + '</h3>' +
1047
          '<div>' + object.length + ' bytes' +
1048
          '<span class="raw-link">' +
1049
            u.link(rawFilePath, req._t('Raw')) + '</span>' +
1050
          '</div></section>' +
1051
          '<section>'),
1052
        extension in u.imgMimes
1053
        ? pull.once('<img src="' + u.encodeLink(rawFilePath) +
1054
          '" alt="' + u.escape(filename) + '" />')
1055
        : self.web.renderObjectData(object, filename, repo, rev, dirPath),
1056
        pull.once('</section>')
1057
      ])))
1058
    })
1059
  })
1060
}
1061
1062
/* Raw blob */
1063
1064
R.serveRepoRaw = function (req, repo, branch, path) {
1065
  var self = this
1066
  return u.readNext(function (cb) {
1067
    repo.getFile(branch, path, function (err, object) {
1068
      if (err) return cb(null,
1069
        self.web.serveBuffer(404, req._t('error.BlobNotFound')))
1070
      var extension = u.getExtension(path[path.length-1])
1071
      var contentType = u.imgMimes[extension]
1072
      cb(null, pull(object.read, self.web.serveRaw(object.length, contentType)))
1073
    })
1074
  })
1075
}
1076
1077
/* Digs */
1078
1079
R.serveRepoDigs = function serveRepoDigs (req, repo) {
1080
  var self = this
1081
  return u.readNext(cb => {
1082
    var title = req._t('Digs') + ' · %{author}/%{repo}'
1083
    self.web.getVotes(repo.id, (err, votes) => {
1084
      cb(null, self.serveRepoTemplate(req, repo, null, null, title,
1085
        h('section', [
1086
          h('h3', req._t('Digs')),
1087
          h('div', `${req._t('Total')}: ${votes.upvotes}`),
1088
          h('ul', u.paraSourceMap(Object.keys(votes.upvoters), (feedId, cb) => {
1089
            self.web.about.getName(feedId, (err, name) => {
1090
              cb(null, h('li', u.link([feedId], name)))
1091
            })
1092
          }))
1093
        ])
1094
      ))
1095
    })
1096
  })
1097
}
1098
1099
/* Forks */
1100
1101
R.getForks = function (repo, includeSelf) {
1102
  var self = this
1103
  return pull(
1104
    cat([
1105
      includeSelf && pull.once(repo.id),
1106
      // get downstream repos
1107
      pull(
1108
        self.web.ssb.links({
1109
          dest: repo.id,
1110
          rel: 'upstream'
1111
        }),
1112
        pull.map('key')
1113
      ),
1114
      // look for other repos that previously had pull requests to this one
1115
      pull(
1116
        self.web.ssb.links({
1117
          dest: repo.id,
1118
          values: true,
1119
          rel: 'project'
1120
        }),
1121
        u.decryptMessages(self.web.ssb),
1122
        pull.filter(function (msg) {
1123
          var c = msg && msg.value && msg.value.content
1124
          return c && c.type == 'pull-request'
1125
        }),
1126
        pull.map(function (msg) { return msg.value.content.head_repo })
1127
      )
1128
    ]),
1129
    pull.unique(),
1130
    paramap(function (key, cb) {
1131
      self.web.getMsg(key, cb)
1132
    }, 4),
1133
    u.decryptMessages(self.web.ssb),
1134
    pull.filter(function (msg) {
1135
      var c = msg && msg.value && msg.value.content
1136
      return c && c.type == 'git-repo'
1137
    }),
1138
    paramap(function (msg, cb) {
1139
      self.web.getRepoFullName(msg.value.author, msg.key,
1140
          function (err, repoName, authorName) {
1141
        if (err) return cb(err)
1142
        cb(null, {
1143
          key: msg.key,
1144
          value: msg.value,
1145
          repoName: repoName,
1146
          authorName: authorName
1147
        })
1148
      })
1149
    }, 8)
1150
  )
1151
}
1152
1153
R.serveRepoForks = function (req, repo) {
1154
  var hasForks
1155
  var title = req._t('Forks') + ' · %{author}/%{repo}'
1156
  return this.serveRepoTemplate(req, repo, null, null, title, cat([
1157
    pull.once('<h3>' + req._t('Forks') + '</h3>'),
1158
    pull(
1159
      this.getForks(repo),
1160
      pull.map(function (msg) {
1161
        hasForks = true
1162
        return '<section class="collapse">' +
1163
          u.link([msg.value.author], msg.authorName) + ' / ' +
1164
          u.link([msg.key], msg.repoName) +
1165
          '<span class="right-bar">' +
1166
          u.timestamp(msg.value.timestamp, req) +
1167
          '</span></section>'
1168
      })
1169
    ),
1170
    u.readOnce(function (cb) {
1171
      cb(null, hasForks ? '' : req._t('NoForks'))
1172
    })
1173
  ]))
1174
}
1175
1176
R.serveRepoForkPrompt = function (req, repo) {
1177
  var title = req._t('Fork') + ' · %{author}/%{repo}'
1178
  return this.serveRepoTemplate(req, repo, null, null, title, pull.once(
1179
    '<form action="" method="post" onreset="history.back()">' +
1180
    '<h3>' + req._t('ForkRepoPrompt') + '</h3>' +
1181
    '<p>' + u.hiddenInputs({ id: repo.id }) +
1182
    '<button class="btn open" type="submit" name="action" value="fork">' +
1183
      req._t('Fork') +
1184
    '</button>' +
1185
    ' <button class="btn" type="reset">' +
1186
      req._t('Cancel') + '</button>' +
1187
    '</p></form>'
1188
  ))
1189
}
1190
1191
R.serveIssueOrPullRequest = function (req, repo, issue, path, id) {
1192
  return issue.msg.value.content.type == 'pull-request'
1193
    ? this.pulls.serveRepoPullReq(req, repo, issue, path, id)
1194
    : this.issues.serveRepoIssue(req, repo, issue, path, id)
1195
}
1196
1197
function getRepoLastMod(repo, cb) {
1198
  repo.getState(function (err, state) {
1199
    if (err) return cb(err)
1200
    var lastMod = new Date(Math.max.apply(Math, state.refs.map(function (ref) {
1201
      return ref.link.value.timestamp
1202
    }))) || new Date()
1203
    cb(null, lastMod)
1204
  })
1205
}
1206
1207
R.serveRepoRefs = function (req, repo) {
1208
  var self = this
1209
  return u.readNext(function (cb) {
1210
    getRepoLastMod(repo, function (err, lastMod) {
1211
      if (err) return cb(null, self.web.serveError(req, err, 500))
1212
      if (u.ifModifiedSince(req, lastMod)) {
1213
        return cb(null, pull.once([304]))
1214
      }
1215
      repo.getState(function (err, state) {
1216
        if (err) return cb(null, self.web.serveError(req, err, 500))
1217
        var buf = state.refs.sort(function (a, b) {
1218
          return a.name > b.name ? 1 : a.name < b.name ? -1 : 0
1219
        }).map(function (ref) {
1220
          return ref.hash + '\t' + ref.name + '\n'
1221
        }).join('')
1222
        cb(null, pull.values([[200, {
1223
          'Content-Type': 'text/plain; charset=utf-8',
1224
          'Content-Length': Buffer.byteLength(buf),
1225
          'Last-Modified': lastMod.toGMTString()
1226
        }], buf]))
1227
      })
1228
    })
1229
  })
1230
}
1231
1232
R.serveRepoObject = function (req, repo, sha1) {
1233
  var self = this
1234
  if (!/[0-9a-f]{20}/.test(sha1)) return pull.once([401])
1235
  return u.readNext(function (cb) {
1236
    repo.getObjectFromAny(sha1, function (err, obj) {
1237
      if (err) return cb(null, pull.once([404]))
1238
      cb(null, cat([
1239
        pull.once([200, {
1240
          'Content-Type': 'application/x-git-loose-object',
1241
          'Cache-Control': 'max-age=31536000'
1242
        }]),
1243
        pull(
1244
          cat([
1245
            pull.values([obj.type, ' ', obj.length.toString(10), '\0']),
1246
            obj.read
1247
          ]),
1248
          toPull(zlib.createDeflate())
1249
        )
1250
      ]))
1251
    })
1252
  })
1253
}
1254
1255
R.serveRepoHead = function (req, repo) {
1256
  var self = this
1257
  return u.readNext(function (cb) {
1258
    repo.getHead(function (err, name) {
1259
      if (err) return cb(null, pull.once([500]))
1260
      return cb(null, self.web.serveBuffer(200, 'ref: ' + name))
1261
    })
1262
  })
1263
}
1264
1265
R.serveRepoPacksInfo = function (req, repo) {
1266
  var self = this
1267
  return u.readNext(function (cb) {
1268
    getRepoLastMod(repo, function (err, lastMod) {
1269
      if (err) return cb(null, self.web.serveError(req, err, 500))
1270
      if (u.ifModifiedSince(req, lastMod)) {
1271
        return cb(null, pull.once([304]))
1272
      }
1273
      cb(null, cat([
1274
        pull.once([200, {
1275
          'Content-Type': 'text/plain; charset=utf-8',
1276
          'Last-Modified': lastMod.toGMTString()
1277
        }]),
1278
        pull(
1279
          repo.packs(),
1280
          pull.map(function (pack) {
1281
            var sha1 = pack.sha1
1282
            if (!sha1) {
1283
              // make up a sha1 and hope git doesn't notice
1284
              var packId = new Buffer(pack.packId.substr(1, 44), 'base64')
1285
              sha1 = packId.slice(0, 20).toString('hex')
1286
            }
1287
            return 'P pack-' + sha1 + '.pack\n'
1288
          })
1289
        )
1290
      ]))
1291
    })
1292
  })
1293
}
1294
1295
R.serveRepoPack = function (req, repo, name) {
1296
  var m = name.match(/^pack-(.*)\.(pack|idx)$/)
1297
  if (!m) return pull.once([400])
1298
  var hex;
1299
  try {
1300
    hex = new Buffer(m[1], 'hex')
1301
  } catch(e) {
1302
    return pull.once([400])
1303
  }
1304
1305
  var self = this
1306
  return u.readNext(function (cb) {
1307
    pull(
1308
      repo.packs(),
1309
      pull.filter(function (pack) {
1310
        var sha1 = pack.sha1
1311
          ? new Buffer(pack.sha1, 'hex')
1312
          : new Buffer(pack.packId.substr(1, 44), 'base64').slice(0, 20)
1313
        return sha1.equals(hex)
1314
      }),
1315
      pull.take(1),
1316
      pull.collect(function (err, packs) {
1317
        if (err) return console.error(err), cb(null, pull.once([500]))
1318
        if (packs.length < 1) return cb(null, pull.once([404]))
1319
          var pack = packs[0]
1320
1321
        if (m[2] === 'pack') {
1322
          repo.getPackfile(pack.packId, function (err, read) {
1323
            if (err) return cb(err)
1324
            cb(null, pull(read,
1325
              self.web.serveRaw(null, 'application/x-git-packed-objects')
1326
            ))
1327
          })
1328
        }
1329
1330
        if (m[2] === 'idx') {
1331
          repo.getPackIndex(pack.idxId, function (err, read) {
1332
            if (err) return cb(err)
1333
            cb(null, pull(read,
1334
              self.web.serveRaw(null, 'application/x-git-packed-objects-toc')
1335
            ))
1336
          })
1337
        }
1338
      })
1339
    )
1340
  })
1341
}
1342