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Tree: ef2fab24f57268bc2a96e74078855dfad047fd5b

Files: ef2fab24f57268bc2a96e74078855dfad047fd5b / lib / render-msg.js

42861 bytesRaw
1var h = require('hyperscript')
2var htime = require('human-time')
3var multicb = require('multicb')
4var u = require('./util')
5var mdInline = require('./markdown-inline')
6
7module.exports = RenderMsg
8
9function RenderMsg(render, app, msg, opts) {
10  this.render = render
11  this.app = app
12  this.msg = msg
13  this.value = msg && msg.value || {}
14  var content = this.value.content
15  this.c = content || {}
16  this.isMissing = !content
17
18  if (typeof opts === 'boolean') opts = {raw: opts}
19  this.opts = opts || {}
20  this.shouldWrap = this.opts.wrap !== false
21}
22
23RenderMsg.prototype.toUrl = function (href) {
24  return this.render.toUrl(href)
25}
26
27RenderMsg.prototype.linkify = function (text) {
28  return this.render.linkify(text)
29}
30
31function token() {
32  return '__' + Math.random().toString(36).substr(2) + '__'
33}
34
35RenderMsg.prototype.raw = function (cb) {
36  // linkify various things in the JSON. TODO: abstract this better
37
38  // clone the message for linkifying
39  var m = {}, k
40  for (k in this.msg) m[k] = this.msg[k]
41  m.value = {}
42  for (k in this.msg.value) m.value[k] = this.msg.value[k]
43  var tokens = {}
44
45  // link to feed starting from this message
46  if (m.value.sequence) {
47    var tok = token()
48    tokens[tok] = h('a', {href:
49      this.toUrl(m.value.author + '?gt=' + (m.value.sequence-1))},
50      m.value.sequence)
51    m.value.sequence = tok
52  }
53
54  if (typeof m.value.content === 'object' && m.value.content != null) {
55    var c = m.value.content = {}
56    for (k in this.c) c[k] = this.c[k]
57
58    // link to messages of same type
59    tok = token()
60    tokens[tok] = h('a', {href: this.toUrl('/type/' + c.type)}, c.type)
61    c.type = tok
62
63    // link to channel
64    if (c.channel) {
65      tok = token()
66      tokens[tok] = h('a', {href: this.toUrl('#' + c.channel)}, c.channel)
67      c.channel = tok
68    }
69
70    // link to hashtags
71    // TODO: recurse
72    for (var k in c) {
73      if (!c[k] || c[k][0] !== '#') continue
74      tok = token()
75      tokens[tok] = h('a', {href: this.toUrl(c[k])}, c[k])
76      c[k] = tok
77    }
78  }
79
80  // link refs
81  var els = this.linkify(JSON.stringify(m, 0, 2))
82
83  // stitch it all together
84  for (var i = 0; i < els.length; i++) {
85    if (typeof els[i] === 'string') {
86      for (var tok in tokens) {
87        if (els[i].indexOf(tok) !== -1) {
88          var parts = els[i].split(tok)
89          els.splice(i, 1, parts[0], tokens[tok], parts[1])
90          continue
91        }
92      }
93    }
94  }
95  this.wrap(h('pre', els), cb)
96}
97
98RenderMsg.prototype.wrap = function (content, cb) {
99  if (!this.shouldWrap) return cb(null, content)
100  var date = new Date(this.msg.value.timestamp)
101  var self = this
102  var channel = this.c.channel ? '#' + this.c.channel : ''
103  var done = multicb({pluck: 1, spread: true})
104  done()(null, [h('tr.msg-row',
105    h('td.msg-left', {rowspan: 2},
106      h('div', this.render.avatarImage(this.msg.value.author, done())),
107      h('div', this.render.idLink(this.msg.value.author, done())),
108      this.recpsLine(done())
109    ),
110    h('td.msg-main',
111      h('div.msg-header',
112        h('a.ssb-timestamp', {
113          title: date.toLocaleString(),
114          href: this.msg.key ? this.toUrl(this.msg.key) : undefined
115        }, htime(date)), ' ',
116        h('code', h('a.ssb-id',
117          {href: this.toUrl(this.msg.key)}, this.msg.key)),
118        channel ? [' ', h('a', {href: this.toUrl(channel)}, channel)] : '')),
119    h('td.msg-right', this.actions())
120  ), h('tr',
121    h('td.msg-content', {colspan: 2},
122      this.issues(done()),
123      content)
124  )])
125  done(cb)
126}
127
128RenderMsg.prototype.wrapMini = function (content, cb) {
129  if (!this.shouldWrap) return cb(null, content)
130  var date = new Date(this.value.timestamp)
131  var self = this
132  var channel = this.c.channel ? '#' + this.c.channel : ''
133  var done = multicb({pluck: 1, spread: true})
134  done()(null, h('tr.msg-row',
135    h('td.msg-left',
136      this.render.idLink(this.value.author, done()), ' ',
137      this.recpsLine(done()),
138      channel ? [h('a', {href: this.toUrl(channel)}, channel), ' '] : ''),
139    h('td.msg-main',
140      h('a.ssb-timestamp', {
141        title: date.toLocaleString(),
142        href: this.msg.key ? this.toUrl(this.msg.key) : undefined
143      }, htime(date)), ' ',
144      this.issues(done()),
145      content),
146    h('td.msg-right', this.actions())
147  ))
148  done(cb)
149}
150
151RenderMsg.prototype.actions = function () {
152  return this.msg.key ?
153    h('form', {method: 'post', action: ''},
154      this.msg.rel ? [this.msg.rel, ' '] : '',
155      this.opts.withGt && this.msg.timestamp ? [
156        h('a', {href: '?gt=' + this.msg.timestamp}, '↓'), ' '] : '',
157      this.c.type === 'gathering' ? [
158        h('a', {href: this.render.toUrl('/about/' + encodeURIComponent(this.msg.key))}, 'about'), ' '] : '',
159      /^(ssb_)?chess_/.test(this.c.type) ? [
160        h('a', {href: this.toUrl(this.msg.key) + '?full',
161	  title: 'view full game board'}, 'full'), ' '] : '',
162      typeof this.c.text === 'string' ? [
163        h('a', {href: this.toUrl(this.msg.key) + '?raw=md',
164          title: 'view markdown source'}, 'md'), ' '] : '',
165      h('a', {href: this.toUrl(this.msg.key) + '?raw',
166        title: 'view raw message'}, 'raw'), ' ',
167      this.buttonsCommon(),
168      this.c.type === 'gathering' ? [this.attendButton(), ' '] : '',
169      this.voteButton('dig')
170  ) : [
171    this.msg.rel ? [this.msg.rel, ' '] : ''
172  ]
173}
174
175RenderMsg.prototype.sync = function (cb) {
176  cb(null, h('tr.msg-row', h('td', {colspan: 3},
177    h('hr')
178  )))
179}
180
181RenderMsg.prototype.recpsLine = function (cb) {
182  if (!this.value.private) return cb(), ''
183  var author = this.value.author
184  var recpsNotSelf = u.toArray(this.c.recps).filter(function (link) {
185    return u.linkDest(link) !== author
186  })
187  return this.render.privateLine(recpsNotSelf, cb)
188}
189
190RenderMsg.prototype.recpsIds = function () {
191  return this.value.private
192    ? u.toArray(this.c.recps).map(u.linkDest)
193    : []
194}
195
196RenderMsg.prototype.buttonsCommon = function () {
197  var chan = this.msg.value.content.channel
198  var recps = this.recpsIds()
199  return [
200    chan ? h('input', {type: 'hidden', name: 'channel', value: chan}) : '',
201    h('input', {type: 'hidden', name: 'link', value: this.msg.key}),
202    h('input', {type: 'hidden', name: 'recps', value: recps.join(',')})
203  ]
204}
205
206RenderMsg.prototype.voteButton = function (expression) {
207  var chan = this.msg.value.content.channel
208  return [
209    h('input', {type: 'hidden', name: 'vote_value', value: 1}),
210    h('input', {type: 'hidden', name: 'vote_expression', value: expression}),
211    h('input', {type: 'submit', name: 'action_vote', value: expression})]
212}
213
214RenderMsg.prototype.attendButton = function () {
215  var chan = this.msg.value.content.channel
216  return [
217    h('input', {type: 'submit', name: 'action_attend', value: 'attend'})
218  ]
219}
220
221RenderMsg.prototype.message = function (cb) {
222  if (this.opts.raw) return this.raw(cb)
223  if (this.msg.sync) return this.sync(cb)
224  if (typeof this.c === 'string') return this.encrypted(cb)
225  if (this.isMissing) return this.missing(cb)
226  switch (this.c.type) {
227    case 'post': return this.post(cb)
228    case 'ferment/like':
229    case 'robeson/like':
230    case 'vote': return this.vote(cb)
231    case 'about': return this.about(cb)
232    case 'contact': return this.contact(cb)
233    case 'pub': return this.pub(cb)
234    case 'channel': return this.channel(cb)
235    case 'git-repo': return this.gitRepo(cb)
236    case 'git-update': return this.gitUpdate(cb)
237    case 'pull-request': return this.gitPullRequest(cb)
238    case 'issue': return this.issue(cb)
239    case 'issue-edit': return this.issueEdit(cb)
240    case 'music-release-cc': return this.musicRelease(cb)
241    case 'ssb-dns': return this.dns(cb)
242    case 'gathering': return this.gathering(cb)
243    case 'micro': return this.micro(cb)
244    case 'ferment/audio':
245    case 'robeson/audio':
246      return this.audio(cb)
247    case 'ferment/repost':
248    case 'robeson/repost':
249      return this.repost(cb)
250    case 'ferment/update':
251    case 'robeson/update':
252      return this.update(cb)
253    case 'chess_invite':
254    case 'ssb_chess_invite':
255      return this.chessInvite(cb)
256    case 'chess_invite_accept':
257    case 'ssb_chess_invite_accept':
258      return this.chessInviteAccept(cb)
259    case 'chess_move':
260    case 'ssb_chess_move':
261      return this.chessMove(cb)
262    case 'chess_game_end':
263    case 'ssb_chess_game_end':
264      return this.chessGameEnd(cb)
265    case 'chess_chat':
266      return this.chessChat(cb)
267    case 'wifi-network': return this.wifiNetwork(cb)
268    case 'mutual/credit': return this.mutualCredit(cb)
269    case 'mutual/account': return this.mutualAccount(cb)
270    case 'npm-publish': return this.npmPublish(cb)
271    case 'npm-packages': return this.npmPackages(cb)
272    case 'npm-prebuilds': return this.npmPrebuilds(cb)
273    case 'acme-challenges-http-01': return this.acmeChallengesHttp01(cb)
274    case 'bookclub': return this.bookclub(cb)
275    case 'macaco_maluco-sombrio-wall': return this.sombrioWall(cb)
276    case 'macaco_maluco-sombrio-tombstone': return this.sombrioTombstone(cb)
277    case 'macaco_maluco-sombrio-score': return this.sombrioScore(cb)
278    default: return this.object(cb)
279  }
280}
281
282RenderMsg.prototype.encrypted = function (cb) {
283  this.wrapMini(this.render.lockIcon(), cb)
284}
285
286RenderMsg.prototype.markdown = function (cb) {
287  if (this.opts.markdownSource)
288    return this.markdownSource(this.c.text, this.c.mentions)
289  return this.render.markdown(this.c.text, this.c.mentions)
290}
291
292RenderMsg.prototype.markdownSource = function (text, mentions) {
293  return h('div',
294    h('pre', String(text)),
295    mentions ? [
296      h('div', h('em', 'mentions:')),
297      this.valueTable(mentions, 2, function () {})
298    ] : ''
299  ).innerHTML
300}
301
302RenderMsg.prototype.post = function (cb) {
303  var self = this
304  var done = multicb({pluck: 1, spread: true})
305  if (self.c.root === self.c.branch) done()()
306  else self.link(self.c.root, done())
307  self.links(self.c.branch, done())
308  self.links(self.c.fork, done())
309  done(function (err, rootLink, branchLinks, forkLinks) {
310    if (err) return self.wrap(u.renderError(err), cb)
311    self.wrap(h('div.ssb-post',
312      rootLink ? h('div', h('small', h('span.symbol', '→'), ' ', rootLink)) : '',
313      branchLinks.map(function (a, i) {
314        return h('div', h('small', h('span.symbol', '  ↳'), ' ', a))
315      }),
316      forkLinks.map(function (a, i) {
317        return h('div', h('small', h('span.symbol', '⑂'), ' ', a))
318      }),
319      h('div.ssb-post-text', {innerHTML: self.markdown()})
320    ), cb)
321  })
322}
323
324RenderMsg.prototype.vote = function (cb) {
325  var self = this
326  var v = self.c.vote || self.c.like || {}
327  self.link(v, function (err, a) {
328    if (err) return cb(err)
329    self.wrapMini([
330      v.value > 0 ? 'dug' : v.value < 0 ? 'downvoted' : 'undug',
331      ' ', a,
332      v.reason ? [' as ', h('q', v.reason)] : ''
333    ], cb)
334  })
335}
336
337RenderMsg.prototype.getName = function (id, cb) {
338  switch (id && id[0]) {
339    case '%': return this.getMsgName(id, cb)
340    case '@': // fallthrough
341    case '&': return this.getAboutName(id, cb)
342    default: return cb(null, String(id))
343  }
344}
345
346RenderMsg.prototype.getMsgName = function (id, cb) {
347  var self = this
348  self.app.getMsg(id, function (err, msg) {
349    if (err && err.name == 'NotFoundError')
350      cb(null, id.substring(0, 10)+'...(missing)')
351    else if (err) cb(err)
352      // preserve security: only decrypt the linked message if we decrypted
353      // this message
354    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
355    else gotMsg(null, msg)
356  })
357  function gotMsg(err, msg) {
358    if (err) return cb(err)
359    new RenderMsg(self.render, self.app, msg, {wrap: false}).title(cb)
360  }
361}
362
363function truncate(str, len) {
364  str = String(str)
365  return str.length > len ? str.substr(0, len) + '...' : str
366}
367
368function title(str) {
369  return truncate(mdInline(str), 72)
370}
371
372RenderMsg.prototype.title = function (cb) {
373  var self = this
374  self.app.filterMsg(self.msg, self.opts, function (err, show) {
375    if (err) return cb(err)
376    if (show) self.title1(cb)
377    else cb(null, '[…]')
378  })
379}
380
381RenderMsg.prototype.title1 = function (cb) {
382  var self = this
383  if (!self.c || typeof self.c !== 'object') {
384    cb(null, self.msg.key)
385  } else if (typeof self.c.text === 'string') {
386    if (self.c.type === 'post')
387      cb(null, title(self.c.text))
388    else
389      cb(null, '%' + self.c.type + ': ' + (self.c.title || title(self.c.text)))
390  } else {
391    if (self.c.type === 'ssb-dns')
392      cb(null, self.c.record && JSON.stringify(self.c.record.data) || self.msg.key)
393    else if (self.c.type === 'npm-publish')
394      self.npmPublishTitle(cb)
395    else if (self.c.type === 'chess_chat')
396      cb(null, title(self.c.msg))
397    else if (self.c.type === 'chess_invite')
398      self.chessInviteTitle(cb)
399    else if (self.c.type === 'bookclub')
400      self.bookclubTitle(cb)
401    else
402    self.app.getAbout(self.msg.key, function (err, about) {
403      if (err) return cb(err)
404      var name = about.name || about.title
405        || (about.description && mdInline(about.description))
406      if (name) return cb(null, truncate(name, 72))
407      self.message(function (err, el) {
408        if (err) return cb(err)
409        cb(null, '%' + title(h('div', el).textContent))
410      })
411    })
412  }
413}
414
415RenderMsg.prototype.getAboutName = function (id, cb) {
416  this.app.getAbout(id, function (err, about) {
417    cb(err, about && about.name || (String(id).substr(0, 8) + '…'))
418  })
419}
420
421RenderMsg.prototype.link = function (link, cb) {
422  var self = this
423  var ref = u.linkDest(link)
424  if (!ref) return cb(null, '')
425  self.getName(ref, function (err, name) {
426    if (err) name = truncate(ref, 10)
427    cb(null, h('a', {href: self.toUrl(ref)}, name))
428  })
429}
430
431RenderMsg.prototype.link1 = function (link, cb) {
432  var self = this
433  var ref = u.linkDest(link)
434  if (!ref) return cb(), ''
435  var a = h('a', {href: self.toUrl(ref)}, ref)
436  self.getName(ref, function (err, name) {
437    if (err) name = ref
438    a.childNodes[0].textContent = name
439    cb()
440  })
441  return a
442}
443
444RenderMsg.prototype.links = function (links, cb) {
445  var self = this
446  var done = multicb({pluck: 1})
447  u.toArray(links).forEach(function (link) {
448    self.link(link, done())
449  })
450  done(cb)
451}
452
453function dateTime(d) {
454  var date = new Date(d.epoch)
455  return date.toString()
456  // d.bias
457  // d.epoch
458}
459
460// TODO: make more DRY
461var knownAboutProps = {
462  type: true,
463  root: true,
464  about: true,
465  attendee: true,
466  about: true,
467  image: true,
468  description: true,
469  name: true,
470  title: true,
471  attendee: true,
472  startDateTime: true,
473  endDateTime: true,
474  location: true,
475  /*
476  rating: true,
477  ratingType: true,
478  */
479}
480
481RenderMsg.prototype.about = function (cb) {
482  var keys = Object.keys(this.c).sort().join()
483  var isSelf = this.c.about === this.msg.value.author
484
485  if (keys === 'about,name,type') {
486    return this.wrapMini([
487      isSelf ?
488        'self-identifies as ' :
489        ['identifies ', h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)), ' as '],
490      h('ins', this.c.name)
491    ], cb)
492  }
493
494  var done = multicb({pluck: 1, spread: true})
495  var elCb = done()
496
497  var isAttendingMsg = u.linkDest(this.c.attendee) === this.msg.value.author
498    && keys === 'about,attendee,type'
499  if (isAttendingMsg) {
500    var attending = !this.c.attendee.remove
501    this.wrapMini([
502      attending ? ' is attending' : ' is not attending', ' ',
503      this.link1(this.c.about, done())
504      ], elCb)
505    return done(cb)
506  }
507
508  var extras
509  for (var k in this.c) {
510    if (this.c[k] !== null && this.c[k] !== '' && !knownAboutProps[k]) {
511      if (!extras) extras = {}
512      extras[k] = this.c[k]
513    }
514  }
515
516  var img = u.linkDest(this.c.image)
517  // if there is a description, it is likely to be multi-line
518  var hasDescription = this.c.description != null
519  // if this about message gives the thing a name, show its id
520  var showComputedName = !isSelf && !this.c.name
521
522  this.wrap([
523    this.c.root ? h('div',
524      h('small', '> ', this.link1(this.c.root, done()))
525    ) : '',
526    isSelf ? 'self-describes as ' : [
527      'describes ',
528      !this.c.about ? ''
529        : showComputedName ? this.link1(this.c.about, done())
530        : h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10)),
531      ' as '
532    ],
533    this.c.name ? [h('ins', this.c.name), ' '] : '',
534    this.c.description ? h('div',
535      {innerHTML: this.render.markdown(this.c.description)}) : '',
536    this.c.title ? h('h3', this.c.title) : '',
537    this.c.attendee ? h('div',
538      this.link1(this.c.attendee.link, done()),
539      this.c.attendee.remove ? ' is not attending' : ' is attending'
540    ) : '',
541    this.c.startDateTime ? h('div',
542      'starting at ', dateTime(this.c.startDateTime)) : '',
543    this.c.endDateTime ? h('div',
544      'ending at ', dateTime(this.c.endDateTime)) : '',
545    this.c.location ? h('div', 'at ', this.c.location) : '',
546    img ? h('a', {href: this.toUrl(img)},
547      h('img.ssb-avatar-image', {
548        src: this.render.imageUrl(img),
549        alt: ' ',
550      })) : '',
551    /*
552    this.c.rating != null ? this.aboutRating() : '',
553    */
554    extras ? this.valueTable(extras, 1, done())
555    : ''
556  ], elCb)
557  done(cb)
558}
559
560/*
561 * disabled until it's clearer how to do this -cel
562RenderMsg.prototype.aboutRating = function (cb) {
563  var rating = Number(this.c.rating)
564  var type = this.c.ratingType || '★'
565  var text = rating + ' ' + type
566  if (isNaN(rating)) return 'rating: ' + text
567  if (rating > 5) rating = 5
568  var el = h('div', {title: text})
569  for (var i = 0; i < rating; i++) {
570    el.appendChild(h('span',
571      {innerHTML: unwrapP(this.render.markdown(type) + ' ')}
572    ))
573  }
574  return el
575}
576*/
577
578RenderMsg.prototype.contact = function (cb) {
579  var self = this
580  self.link(self.c.contact, function (err, a) {
581    if (err) return cb(err)
582    if (!a) a = "?"
583      self.wrapMini([
584        self.c.following && self.c.autofollow ? 'follows pub' :
585        self.c.following && self.c.pub ? 'autofollows' :
586        self.c.following ? 'follows' :
587        self.c.blocking ? 'blocks' :
588        self.c.flagged ? 'flagged' :
589        self.c.following === false ? 'unfollows' :
590        self.c.blocking === false ? 'unblocks' : '',
591        self.c.flagged === false ? 'unflagged' :
592        ' ', a,
593        self.c.note ? [
594          ' from ',
595          h('code', self.c.note)
596        ] : '',
597        self.c.reason ? [' because ', h('q', self.c.reason)] : ''
598      ], cb)
599  })
600}
601
602RenderMsg.prototype.pub = function (cb) {
603  var self = this
604  var addr = self.c.address || {}
605  self.link(addr.key, function (err, pubLink) {
606    if (err) return cb(err)
607      self.wrapMini([
608        'connects to ', pubLink, ' at ',
609        h('code', addr.host + ':' + addr.port)], cb)
610  })
611}
612
613RenderMsg.prototype.channel = function (cb) {
614  var chan = '#' + this.c.channel
615  this.wrapMini([
616    this.c.subscribed ? 'subscribes to ' :
617    this.c.subscribed === false ? 'unsubscribes from ' : '',
618    h('a', {href: this.toUrl(chan)}, chan)], cb)
619}
620
621RenderMsg.prototype.gitRepo = function (cb) {
622  var self = this
623  var id = self.msg.key
624  var name = self.c.name
625  var upstream = self.c.upstream
626  self.link(upstream, function (err, upstreamA) {
627    if (err) upstreamA = ('a', {href: self.toUrl(upstream)}, String(name))
628    self.wrapMini([
629      upstream ? ['forked ', upstreamA, ': '] : '',
630      'git clone ',
631      h('code', h('small', 'ssb://' + id)),
632      name ? [' ', h('a', {href: self.toUrl(id)}, String(name))] : ''
633    ], cb)
634  })
635}
636
637RenderMsg.prototype.gitUpdate = function (cb) {
638  var self = this
639  // h('a', {href: self.toUrl(self.c.repo)}, 'ssb://' + self.c.repo),
640  var size = [].concat(self.c.packs, self.c.indexes)
641    .map(function (o) { return o && o.size })
642    .reduce(function (total, s) { return total + s })
643
644  var done = multicb({pluck: 1, spread: true})
645  self.link(self.c.repo, done())
646  self.render.npmPackageMentions(self.c.mentions, done())
647  self.render.npmPrebuildMentions(self.c.mentions, done())
648  done(function (err, a, pkgMentionsEl, prebuildMentionsEl) {
649    if (err) return cb(err)
650      self.wrap(h('div.ssb-git-update',
651        'git push ', a, ' ',
652        !isNaN(size) ? [self.render.formatSize(size), ' '] : '',
653        self.c.refs ? h('ul', Object.keys(self.c.refs).map(function (ref) {
654          var id = self.c.refs[ref]
655          var type = /^refs\/tags/.test(ref) ? 'tag' : 'commit'
656          var path = id && ('/git/' + type + '/' + encodeURIComponent(id)
657            + '?msg=' + encodeURIComponent(self.msg.key))
658          return h('li',
659            ref.replace(/^refs\/(heads|tags)\//, ''), ': ',
660            id ? h('a', {href: self.render.toUrl(path)}, h('code', id))
661               : h('em', 'deleted'))
662      })) : '',
663      Array.isArray(self.c.commits) ?
664        h('ul', self.c.commits.map(function (commit) {
665          var path = '/git/commit/' + encodeURIComponent(commit.sha1)
666            + '?msg=' + encodeURIComponent(self.msg.key)
667          return h('li', h('a', {href: self.render.toUrl(path)},
668            h('code', String(commit.sha1).substr(0, 8))), ' ',
669            self.linkify(String(commit.title)),
670            self.render.gitCommitBody(commit.body)
671          )
672        })) : '',
673      Array.isArray(self.c.tags) ?
674        h('ul', self.c.tags.map(function (tag) {
675          var path = '/git/tag/' + encodeURIComponent(tag.sha1)
676            + '?msg=' + encodeURIComponent(self.msg.key)
677          return h('li',
678            h('a', {href: self.render.toUrl(path)},
679              h('code', String(tag.sha1).substr(0, 8))), ' ',
680            'tagged ', String(tag.type), ' ',
681            h('code', String(tag.object).substr(0, 8)), ' ',
682            String(tag.tag),
683            tag.title ? [': ', self.linkify(String(tag.title).trim()), ' '] : '',
684            tag.body ? self.render.gitCommitBody(tag.body) : ''
685          )
686        })) : '',
687        self.c.commits_more ? h('div',
688          '+ ' + self.c.commits_more + ' more commits') : '',
689        self.c.tags_more ? h('div',
690          '+ ' + self.c.tags_more + ' more tags') : '',
691	pkgMentionsEl,
692	prebuildMentionsEl
693    ), cb)
694  })
695}
696
697RenderMsg.prototype.gitPullRequest = function (cb) {
698  var self = this
699  var done = multicb({pluck: 1, spread: true})
700  self.link(self.c.repo, done())
701  self.link(self.c.head_repo, done())
702  done(function (err, baseRepoLink, headRepoLink) {
703    if (err) return cb(err)
704    self.wrap(h('div.ssb-pull-request',
705      'pull request ',
706      'to ', baseRepoLink, ':', self.c.branch, ' ',
707      'from ', headRepoLink, ':', self.c.head_branch,
708      self.c.title ? h('h4', self.c.title) : '',
709      h('div', {innerHTML: self.markdown()})), cb)
710  })
711}
712
713RenderMsg.prototype.issue = function (cb) {
714  var self = this
715  self.link(self.c.project, function (err, projectLink) {
716    if (err) return cb(err)
717    self.wrap(h('div.ssb-issue',
718      'issue on ', projectLink,
719      self.c.title ? h('h4', self.c.title) : '',
720      h('div', {innerHTML: self.markdown()})), cb)
721  })
722}
723
724RenderMsg.prototype.issueEdit = function (cb) {
725  this.wrap('', cb)
726}
727
728RenderMsg.prototype.object = function (cb) {
729  var done = multicb({pluck: 1, spread: true})
730  var elCb = done()
731  this.wrap([
732    this.valueTable(this.c, 1, done()),
733  ], elCb)
734  done(cb)
735}
736
737RenderMsg.prototype.valueTable = function (val, depth, cb) {
738  var isContent = depth === 1
739  var self = this
740  switch (typeof val) {
741    case 'object':
742      if (val === null) return cb(), ''
743      var done = multicb({pluck: 1, spread: true})
744      var el = Array.isArray(val)
745        ? h('ul', val.map(function (item) {
746          return h('li', self.valueTable(item, depth + 1, done()))
747        }))
748        : h('table.ssb-object', Object.keys(val).map(function (key) {
749          if (key === 'text') {
750            return h('tr',
751              h('td', h('strong', 'text')),
752              h('td', h('div', {
753                innerHTML: self.render.markdown(val.text, val.mentions)
754              }))
755            )
756          } else if (isContent && key === 'type') {
757	    // TODO: also link to images by type, using links2
758            var type = val.type
759            return h('tr',
760              h('td', h('strong', 'type')),
761              h('td', h('a', {href: self.toUrl('/type/' + type)}, type))
762            )
763          }
764          return h('tr',
765            h('td', h('strong', key)),
766            h('td', self.valueTable(val[key], depth + 1, done()))
767          )
768        }))
769      done(cb)
770      return el
771    case 'string':
772      if (val[0] === '#') return cb(null, h('a', {href: self.toUrl('/channel/' + val.substr(1))}, val))
773      if (u.isRef(val)) return self.link1(val, cb)
774      return cb(), self.linkify(val)
775    case 'boolean':
776      return cb(), h('input', {
777        type: 'checkbox', disabled: 'disabled', checked: val
778      })
779    default:
780      return cb(), String(val)
781  }
782}
783
784RenderMsg.prototype.missing = function (cb) {
785  this.wrapMini(h('code', 'MISSING'), cb)
786}
787
788RenderMsg.prototype.issues = function (cb) {
789  var self = this
790  var done = multicb({pluck: 1, spread: true})
791  var issues = u.toArray(self.c.issues)
792  if (self.c.type === 'issue-edit' && self.c.issue) {
793    issues.push({
794      link: self.c.issue,
795      title: self.c.title,
796      open: self.c.open,
797    })
798  }
799  var els = issues.map(function (issue) {
800    var commit = issue.object || issue.label ? [
801      issue.object ? h('code', issue.object) : '', ' ',
802      issue.label ? h('q', issue.label) : ''] : ''
803    if (issue.merged === true)
804      return h('div',
805        'merged ', self.link1(issue, done()))
806    if (issue.open === false)
807      return h('div',
808        'closed ', self.link1(issue, done()))
809    if (issue.open === true)
810      return h('div',
811        'reopened ', self.link1(issue, done()))
812    if (typeof issue.title === 'string')
813      return h('div',
814        'renamed ', self.link1(issue, done()), ' to ', h('ins', issue.title))
815  })
816  done(cb)
817  return els.length > 0 ? [els, h('br')] : ''
818}
819
820RenderMsg.prototype.repost = function (cb) {
821  var self = this
822  var id = u.linkDest(self.c.repost)
823  self.app.getMsg(id, function (err, msg) {
824    if (err && err.name == 'NotFoundError')
825      gotMsg(null, id.substring(0, 10)+'...(missing)')
826    else if (err) gotMsg(err)
827    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
828    else gotMsg(null, msg)
829  })
830  function gotMsg(err, msg) {
831    if (err) return cb(err)
832    var renderMsg = new RenderMsg(self.render, self.app, msg, {wrap: false})
833      renderMsg.message(function (err, msgEl) {
834        self.wrapMini(['reposted ',
835          h('code.ssb-id',
836            h('a', {href: self.render.toUrl(id)}, id)),
837          h('div', err ? u.renderError(err) : msgEl || '')
838        ], cb)
839    })
840  }
841}
842
843RenderMsg.prototype.update = function (cb) {
844  var id = String(this.c.update)
845  this.wrapMini([
846    h('div', 'updated ', h('code.ssb-id',
847      h('a', {href: this.render.toUrl(id)}, id))),
848    this.c.title ? h('h4.msg-title', this.c.title) : '',
849    this.c.description ? h('div',
850      {innerHTML: this.render.markdown(this.c.description)}) : ''
851  ], cb)
852}
853
854function formatDuration(s) {
855  return Math.floor(s / 60) + ':' + ('0' + s % 60).substr(-2)
856}
857
858RenderMsg.prototype.audio = function (cb) {
859  // fileName, fallbackFileName, overview
860  this.wrap(h('table', h('tr',
861    h('td',
862      this.c.artworkSrc
863      ? h('a', {href: this.render.toUrl(this.c.artworkSrc)}, h('img', {
864          src: this.render.imageUrl(this.c.artworkSrc),
865          alt: ' ',
866          width: 72,
867          height: 72,
868        }))
869      : ''),
870    h('td',
871      h('a', {href: this.render.toUrl(this.c.audioSrc)}, this.c.title),
872      isFinite(this.c.duration)
873        ? ' (' + formatDuration(this.c.duration) + ')'
874        : '',
875      this.c.description
876        ? h('p', {innerHTML: this.render.markdown(this.c.description)})
877        : ''
878  ))), cb)
879}
880
881RenderMsg.prototype.musicRelease = function (cb) {
882  var self = this
883  this.wrap([
884    h('table', h('tr',
885      h('td',
886        this.c.cover
887          ? h('a', {href: this.render.imageUrl(this.c.cover)}, h('img', {
888              src: this.render.imageUrl(this.c.cover),
889              alt: ' ',
890              width: 72,
891              height: 72,
892            }))
893          : ''),
894      h('td',
895        h('h4.msg-title', this.c.title),
896        this.c.text
897          ? h('div', {innerHTML: this.render.markdown(this.c.text)})
898          : ''
899      )
900    )),
901    h('ul', u.toArray(this.c.tracks).filter(Boolean).map(function (track) {
902      return h('li',
903        h('a', {href: self.render.toUrl(track.link)}, track.fname))
904    }))
905  ], cb)
906}
907
908RenderMsg.prototype.dns = function (cb) {
909  var self = this
910  var record = self.c.record || {}
911  var done = multicb({pluck: 1, spread: true})
912  var elCb = done()
913  self.wrap([
914    h('div',
915      h('p',
916        h('ins', {title: 'name'}, record.name), ' ',
917        h('span', {title: 'ttl'}, record.ttl), ' ',
918        h('span', {title: 'class'}, record.class), ' ',
919        h('span', {title: 'type'}, record.type)
920      ),
921      h('pre', {title: 'data'},
922        JSON.stringify(record.data || record.value, null, 2)),
923      !self.c.branch ? null : h('div',
924        'replaces: ', u.toArray(self.c.branch).map(function (id, i) {
925          return [self.link1(id, done()), i === 0 ? ', ' : '']
926        })
927      )
928    )
929  ], elCb)
930  done(cb)
931}
932
933RenderMsg.prototype.wifiNetwork = function (cb) {
934  var net = this.c.network || {}
935  this.wrap([
936    h('div', 'wifi network'),
937    h('table',
938      Object.keys(net).map(function (key) {
939        return h('tr',
940          h('td', key),
941          h('td', h('pre', JSON.stringify(net[key]))))
942      })
943    ),
944  ], cb)
945}
946
947RenderMsg.prototype.mutualCredit = function (cb) {
948  var self = this
949  var currency = String(self.c.currency)
950  self.link(self.c.account, function (err, a) {
951    if (err) return cb(err)
952    self.wrapMini([
953      'credits ', a || '?', ' ',
954      h('code', self.c.amount), ' ',
955      currency[0] === '#'
956        ? h('a', {href: self.toUrl(currency)}, currency)
957        : h('ins', currency),
958      self.c.memo ? [' for ', h('q', self.c.memo)] : ''
959    ], cb)
960  })
961}
962
963RenderMsg.prototype.mutualAccount = function (cb) {
964  return this.object(cb)
965}
966
967RenderMsg.prototype.gathering = function (cb) {
968  this.wrapMini('gathering', cb)
969}
970
971function unwrapP(html) {
972  return String(html).replace(/^<p>(.*)<\/p>\s*$/, function ($0, $1) {
973    return $1
974  })
975}
976
977RenderMsg.prototype.micro = function (cb) {
978  var el = h('span', {innerHTML: unwrapP(this.markdown())})
979  this.wrapMini(el, cb)
980}
981
982function hJoin(els, seperator, lastSeparator) {
983  return els.map(function (el, i) {
984    return [i === 0 ? '' : i === els.length-1 ? lastSeparator : seperator, el]
985  })
986}
987
988function asNpmReadme(readme) {
989  if (!readme || readme === 'ERROR: No README data found!') return
990  return u.ifString(readme)
991}
992
993function singleValue(obj) {
994  if (!obj || typeof obj !== 'object') return obj
995  var keys = Object.keys(obj)
996  if (keys.length === 1) return obj[keys[0]]
997}
998
999function ifDifferent(obj, value) {
1000  if (singleValue(obj) !== value) return obj
1001}
1002
1003RenderMsg.prototype.npmPublish = function (cb) {
1004  var self = this
1005  var render = self.render
1006  var pkg = self.c.meta || {}
1007  var pkgReadme = asNpmReadme(pkg.readme)
1008  var pkgDescription = u.ifString(pkg.description)
1009
1010  var versions = Object.keys(pkg.versions || {})
1011  var singleVersion = versions.length === 1 ? versions[0] : null
1012  var singleRelease = singleVersion && pkg.versions[singleVersion]
1013  var singleReadme = singleRelease && asNpmReadme(singleRelease.readme)
1014
1015  var distTags = pkg['dist-tags'] || {}
1016  var distTagged = {}
1017  for (var distTag in distTags)
1018    if (distTag !== 'latest')
1019      distTagged[distTags[distTag]] = distTag
1020
1021  self.links(self.c.previousPublish, function (err, prevLinks) {
1022    if (err) return cb(err)
1023    self.wrap([
1024      h('div',
1025        'published ',
1026        h('u', pkg.name), ' ',
1027        hJoin(versions.map(function (version) {
1028          var distTag = distTagged[version]
1029          return [h('b', version), distTag ? [' (', h('i', distTag), ')'] : '']
1030        }), ', ')
1031      ),
1032      pkgDescription ? h('div',
1033        // TODO: make mdInline use custom emojis
1034        h('q', {innerHTML: unwrapP(render.markdown(pkgDescription))})) : '',
1035      prevLinks.length ? h('div', 'previous: ', prevLinks) : '',
1036      pkgReadme && pkgReadme !== singleReadme ?
1037        h('blockquote', {innerHTML: render.markdown(pkgReadme)}) : '',
1038      versions.map(function (version, i) {
1039        var release = pkg.versions[version] || {}
1040        var license = u.ifString(release.license)
1041        var author = ifDifferent(release.author, self.msg.value.author)
1042        var description = u.ifString(release.description)
1043        var readme = asNpmReadme(release.readme)
1044        var keywords = u.toArray(release.keywords).map(u.ifString)
1045        var dist = release.dist || {}
1046        var size = u.ifNumber(dist.size)
1047        return [
1048          h > 0 ? h('br') : '',
1049          version !== singleVersion ? h('div', 'version: ', version) : '',
1050          author ? h('div', 'author: ', render.npmAuthorLink(author)) : '',
1051          license ? h('div', 'license: ', h('code', license)) : '',
1052          keywords.length ? h('div', 'keywords: ', keywords.join(', ')) : '',
1053          size ? h('div', 'size: ', render.formatSize(size)) : '',
1054          description && description !== pkgDescription ?
1055            h('div', h('q', {innerHTML: render.markdown(description)})) : '',
1056          readme ? h('blockquote', {innerHTML: render.markdown(readme)}) : ''
1057        ]
1058      })
1059    ], cb)
1060  })
1061}
1062
1063RenderMsg.prototype.npmPackages = function (cb) {
1064  var self = this
1065  var done = multicb({pluck: 1, spread: true})
1066  var elCb = done()
1067  function renderIdLink(id) {
1068    return [h('a', {href: self.toUrl(id)}, truncate(id, 8)), ' ']
1069  }
1070  self.render.npmPackageMentions(self.c.mentions, function (err, el) {
1071    if (err) return cb(err)
1072    self.wrap(h('div', [
1073      el,
1074      Array.isArray(self.c.dependencyBranch) ? h('div',
1075        'dependencies via: ', self.c.dependencyBranch.map(renderIdLink)
1076      ) : '',
1077      Array.isArray(self.c.versionBranch) ? h('div',
1078        'previous versions: ', self.c.versionBranch.map(renderIdLink)
1079      ) : ''
1080    ]), elCb)
1081    return done(cb)
1082  })
1083}
1084
1085RenderMsg.prototype.npmPrebuilds = function (cb) {
1086  var self = this
1087  self.render.npmPrebuildMentions(self.c.mentions, function (err, el) {
1088    if (err) return cb(err)
1089    self.wrap(el, cb)
1090  })
1091}
1092
1093RenderMsg.prototype.npmPublishTitle = function (cb) {
1094  var pkg = this.c.meta || {}
1095  var name = pkg.name || pkg._id || '?'
1096
1097  var taggedVersions = {}
1098  for (var version in pkg.versions || {})
1099    taggedVersions[version] = []
1100
1101  var distTags = pkg['dist-tags'] || {}
1102  for (var distTag in distTags) {
1103    if (distTag === 'latest') continue
1104    var version = distTags[distTag] || '?'
1105    var tags = taggedVersions[version] || (taggedVersions[version] = [])
1106    tags.push(distTag)
1107  }
1108
1109  cb(null, name + '@' + Object.keys(taggedVersions).map(function (version) {
1110    var tags = taggedVersions[version]
1111    return (tags.length ? tags.join(',') + ':' : '') + version
1112  }).join(','))
1113}
1114
1115function expandDigitToSpaces(n) {
1116  return '         '.substr(-n)
1117}
1118
1119function parseFenRank (line) {
1120  return line.replace(/\d/g, expandDigitToSpaces).split('')
1121}
1122
1123function parseChess(fen) {
1124  var fields = String(fen).split(/\s+/)
1125  var ranks = fields[0].split('/')
1126  var f2 = fields[2] || ''
1127  return {
1128    board: ranks.map(parseFenRank),
1129    /*
1130    nextMove: fields[1] === 'b' ? 'black'
1131            : fields[1] === 'w' ? 'white' : 'unknown',
1132    castling: f2 === '-' ? {} : {
1133      w: {
1134        k: 0 < f2.indexOf('K'),
1135        q: 0 < f2.indexOf('Q'),
1136      },
1137      b: {
1138        k: 0 < f2.indexOf('k'),
1139        q: 0 < f2.indexOf('q'),
1140      }
1141    },
1142    enpassantTarget: fields[3] === '-' ? null : fields[3],
1143    halfmoves: Number(fields[4]),
1144    fullmoves: Number(fields[5]),
1145    */
1146  }
1147}
1148
1149var chessSymbols = {
1150  ' ': [' ', ''],
1151  P: ['♙', 'white', 'pawn'],
1152  N: ['♘', 'white', 'knight'],
1153  B: ['♗', 'white', 'bishop'],
1154  R: ['♖', 'white', 'rook'],
1155  Q: ['♕', 'white', 'queen'],
1156  K: ['♔', 'white', 'king'],
1157  p: ['♟', 'black', 'pawn'],
1158  n: ['♞', 'black', 'knight'],
1159  b: ['♝', 'black', 'bishop'],
1160  r: ['♜', 'black', 'rook'],
1161  q: ['♛', 'black', 'queen'],
1162  k: ['♚', 'black', 'king'],
1163}
1164
1165function chessPieceName(c) {
1166  return chessSymbols[c] && chessSymbols[c][2] || '?'
1167}
1168
1169function renderChessSymbol(c, loc) {
1170  var info = chessSymbols[c] || ['?', '', 'unknown']
1171  return h('span.symbol', {
1172    title: info[1] + ' ' + info[2] + (loc ? ' at ' + loc : '')
1173  }, info[0])
1174}
1175
1176function chessLocToIdxs(loc) {
1177  var m = /^([a-h])([1-8])$/.exec(loc)
1178  if (m) return [8 - m[2], m[1].charCodeAt(0) - 97]
1179}
1180
1181function lookupPiece(board, loc) {
1182  var idxs = chessLocToIdxs(loc)
1183  return idxs && board[idxs[0]] && board[idxs[0]][idxs[1]]
1184}
1185
1186function chessIdxsToLoc(i, j) {
1187  return 'abcdefgh'[j] + (8-i)
1188}
1189
1190RenderMsg.prototype.chessBoard = function (board) {
1191  if (!board) return ''
1192  return h('table.chess-board',
1193    board.map(function (rank, i) {
1194      return h('tr', rank.map(function (piece, j) {
1195        var dark = (i ^ j) & 1
1196        return h('td', {
1197          class: 'chess-square chess-square-' + (dark ? 'dark' : 'light'),
1198        }, renderChessSymbol(piece, chessIdxsToLoc(i, j)))
1199      }))
1200    })
1201  )
1202}
1203
1204RenderMsg.prototype.chessMove = function (cb) {
1205  var self = this
1206  var c = self.c
1207  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1208  var game = parseChess(fen)
1209  var piece = game && lookupPiece(game.board, c.dest)
1210  self.link(self.c.root, function (err, rootLink) {
1211    if (err) return cb(err)
1212    self.wrap([
1213      h('div', h('small', '> ', rootLink)),
1214      h('p',
1215        // 'player ', (c.ply || ''), ' ',
1216        'moved ', (piece ? renderChessSymbol(piece) : ''), ' ',
1217        'from ', c.orig, ' ',
1218        'to ', c.dest
1219      ),
1220      self.chessBoard(game.board)
1221    ], cb)
1222  })
1223}
1224
1225RenderMsg.prototype.chessInvite = function (cb) {
1226  var self = this
1227  var myColor = self.c.myColor
1228  self.link(self.c.inviting, function (err, link) {
1229    if (err) return cb(err)
1230    self.wrap([
1231      'invites ', link, ' to play chess',
1232      // myColor ? h('p', 'my color is ' + myColor) : ''
1233    ], cb)
1234  })
1235}
1236
1237RenderMsg.prototype.chessInviteTitle = function (cb) {
1238  var self = this
1239  var done = multicb({pluck: 1, spread: true})
1240  self.getName(self.c.inviting, done())
1241  self.getName(self.msg.value.author, done())
1242  done(function (err, inviteeLink, inviterLink) {
1243    if (err) return cb(err)
1244    self.wrap([
1245      'chess: ', inviterLink, ' vs. ', inviteeLink
1246    ], cb)
1247  })
1248}
1249
1250RenderMsg.prototype.chessInviteAccept = function (cb) {
1251  var self = this
1252  self.link(self.c.root, function (err, rootLink) {
1253    if (err) return cb(err)
1254    self.wrap([
1255      h('div', h('small', '> ', rootLink)),
1256      h('p', 'accepts invitation to play chess')
1257    ], cb)
1258  })
1259}
1260
1261RenderMsg.prototype.chessGameEnd = function (cb) {
1262  var self = this
1263  var c = self.c
1264  if (c.status === 'resigned') return self.link(self.c.root, function (err, rootLink) {
1265    if (err) return cb(err)
1266    self.wrap([
1267      h('div', h('small', '> ', rootLink)),
1268      h('p', h('strong', 'resigned'))
1269    ], cb)
1270  })
1271
1272  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1273  var game = parseChess(fen)
1274  var piece = game && lookupPiece(game.board, c.dest)
1275  var done = multicb({pluck: 1, spread: true})
1276  self.link(self.c.root, done())
1277  self.link(self.c.winner, done())
1278  done(function (err, rootLink, winnerLink) {
1279    if (err) return cb(err)
1280    self.wrap([
1281      h('div', h('small', '> ', rootLink)),
1282      h('p',
1283        'moved ', (piece ? renderChessSymbol(piece) : ''), ' ',
1284        'from ', c.orig, ' ',
1285        'to ', c.dest
1286      ),
1287      h('p',
1288        h('strong', self.c.status), '. winner: ', h('strong', winnerLink)),
1289      self.chessBoard(game.board)
1290    ], cb)
1291  })
1292}
1293
1294RenderMsg.prototype.chessChat = function (cb) {
1295  var self = this
1296  self.link(self.c.root, function (err, rootLink) {
1297    if (err) return cb(err)
1298    self.wrap([
1299      h('div', h('small', '> ', rootLink)),
1300      h('p', self.c.msg)
1301    ], cb)
1302  })
1303}
1304
1305RenderMsg.prototype.chessMove = function (cb) {
1306  if (this.opts.full) return this.chessMoveFull(cb)
1307  return this.chessMoveMini(cb)
1308}
1309
1310RenderMsg.prototype.chessMoveFull = function (cb) {
1311  var self = this
1312  var c = self.c
1313  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1314  var game = parseChess(fen)
1315  var piece = game && lookupPiece(game.board, c.dest)
1316  self.link(self.c.root, function (err, rootLink) {
1317    if (err) return cb(err)
1318    self.wrap([
1319      h('div', h('small', '> ', rootLink)),
1320      h('p',
1321        // 'player ', (c.ply || ''), ' ',
1322        'moved ', (piece ? renderChessSymbol(piece) : ''), ' ',
1323        'from ', c.orig, ' ',
1324        'to ', c.dest
1325      ),
1326      self.chessBoard(game.board)
1327    ], cb)
1328  })
1329}
1330
1331RenderMsg.prototype.chessMoveMini = function (cb) {
1332  var self = this
1333  var c = self.c
1334  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1335  var game = parseChess(fen)
1336  var piece = game && lookupPiece(game.board, c.dest)
1337  self.link(self.c.root, function (err, rootLink) {
1338    if (err) return cb(err)
1339    self.wrapMini([
1340      'moved ', chessPieceName(piece), ' ',
1341      'to ', c.dest
1342    ], cb)
1343  })
1344}
1345
1346RenderMsg.prototype.acmeChallengesHttp01 = function (cb) {
1347  var self = this
1348  self.wrapMini(h('span',
1349    'serves ',
1350    hJoin(u.toArray(self.c.challenges).map(function (challenge) {
1351      return h('a', {
1352	href: 'http://' + challenge.domain +
1353	  '/.well-known/acme-challenge/' + challenge.token,
1354	title: challenge.keyAuthorization,
1355      }, challenge.domain)
1356    }), ', ', ', and ')
1357  ), cb)
1358}
1359
1360RenderMsg.prototype.bookclub = function (cb) {
1361  var self = this
1362  var props = self.c.common || self.c
1363  var images = u.toLinkArray(props.image || props.images)
1364  self.wrap(h('table', h('tr',
1365    h('td',
1366      images.map(function (image) {
1367        return h('a', {href: self.render.toUrl(image.link)}, h('img', {
1368          src: self.render.imageUrl(image.link),
1369          alt: image.name || ' ',
1370          width: 180,
1371        }))
1372      })),
1373    h('td',
1374      h('h4', props.title),
1375      props.authors ?
1376        h('p', h('em', props.authors))
1377        : '',
1378      props.description
1379        ? h('div', {innerHTML: self.render.markdown(props.description)})
1380        : ''
1381    )
1382  )), cb)
1383}
1384
1385RenderMsg.prototype.bookclubTitle = function (cb) {
1386  var props = this.c.common || this.c
1387  cb(null, props.title || 'book')
1388}
1389
1390RenderMsg.prototype.sombrioPosition = function () {
1391  return h('span', '[' + this.c.position + ']')
1392}
1393
1394RenderMsg.prototype.sombrioWall = function (cb) {
1395  var self = this
1396  self.wrapMini(h('span',
1397    self.sombrioPosition(),
1398    ' wall'
1399  ), cb)
1400}
1401
1402RenderMsg.prototype.sombrioTombstone = function (cb) {
1403  var self = this
1404  self.wrapMini(h('span',
1405    self.sombrioPosition(),
1406    ' tombstone'
1407  ), cb)
1408}
1409
1410RenderMsg.prototype.sombrioScore = function (cb) {
1411  var self = this
1412  self.wrapMini(h('span',
1413    'scored ',
1414    h('ins', self.c.score)
1415  ), cb)
1416}
1417

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