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Tree: d96c42c6804052c6ea48b6833b6d8b110d3baad8

Files: d96c42c6804052c6ea48b6833b6d8b110d3baad8 / lib / render-msg.js

32870 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
71  // link refs
72  var els = this.linkify(JSON.stringify(m, 0, 2))
73
74  // stitch it all together
75  for (var i = 0; i < els.length; i++) {
76    if (typeof els[i] === 'string') {
77      for (var tok in tokens) {
78        if (els[i].indexOf(tok) !== -1) {
79          var parts = els[i].split(tok)
80          els.splice(i, 1, parts[0], tokens[tok], parts[1])
81          continue
82        }
83      }
84    }
85  }
86  this.wrap(h('pre', els), cb)
87}
88
89RenderMsg.prototype.wrap = function (content, cb) {
90  if (!this.shouldWrap) return cb(null, content)
91  var date = new Date(this.msg.value.timestamp)
92  var self = this
93  var channel = this.c.channel ? '#' + this.c.channel : ''
94  var done = multicb({pluck: 1, spread: true})
95  done()(null, [h('tr.msg-row',
96    h('td.msg-left', {rowspan: 2},
97      h('div', this.render.avatarImage(this.msg.value.author, done())),
98      h('div', this.render.idLink(this.msg.value.author, done())),
99      this.recpsLine(done())
100    ),
101    h('td.msg-main',
102      h('div.msg-header',
103        h('a.ssb-timestamp', {
104          title: date.toLocaleString(),
105          href: this.msg.key ? this.toUrl(this.msg.key) : undefined
106        }, htime(date)), ' ',
107        h('code', h('a.ssb-id',
108          {href: this.toUrl(this.msg.key)}, this.msg.key)),
109        channel ? [' ', h('a', {href: this.toUrl(channel)}, channel)] : '')),
110    h('td.msg-right', this.actions())
111  ), h('tr',
112    h('td.msg-content', {colspan: 2},
113      this.issues(done()),
114      content)
115  )])
116  done(cb)
117}
118
119RenderMsg.prototype.wrapMini = function (content, cb) {
120  if (!this.shouldWrap) return cb(null, content)
121  var date = new Date(this.value.timestamp)
122  var self = this
123  var channel = this.c.channel ? '#' + this.c.channel : ''
124  var done = multicb({pluck: 1, spread: true})
125  done()(null, h('tr.msg-row',
126    h('td.msg-left',
127      this.render.idLink(this.value.author, done()), ' ',
128      this.recpsLine(done()),
129      channel ? [h('a', {href: this.toUrl(channel)}, channel), ' '] : ''),
130    h('td.msg-main',
131      h('a.ssb-timestamp', {
132        title: date.toLocaleString(),
133        href: this.msg.key ? this.toUrl(this.msg.key) : undefined
134      }, htime(date)), ' ',
135      this.issues(done()),
136      content),
137    h('td.msg-right', this.actions())
138  ))
139  done(cb)
140}
141
142RenderMsg.prototype.actions = function () {
143  return this.msg.key ?
144    h('form', {method: 'post', action: ''},
145      this.msg.rel ? [this.msg.rel, ' '] : '',
146      this.opts.withGt && this.msg.timestamp ? [
147        h('a', {href: '?gt=' + this.msg.timestamp}, '↓'), ' '] : '',
148      this.c.type === 'gathering' ? [
149        h('a', {href: this.render.toUrl('/about/' + encodeURIComponent(this.msg.key))}, 'about'), ' '] : '',
150      typeof this.c.text === 'string' ? [
151        h('a', {href: this.toUrl(this.msg.key) + '?raw=md',
152          title: 'view markdown source'}, 'md'), ' '] : '',
153      h('a', {href: this.toUrl(this.msg.key) + '?raw',
154        title: 'view raw message'}, 'raw'), ' ',
155      this.buttonsCommon(),
156      this.c.type === 'gathering' ? [this.attendButton(), ' '] : '',
157      this.voteButton('dig')
158  ) : [
159    this.msg.rel ? [this.msg.rel, ' '] : ''
160  ]
161}
162
163RenderMsg.prototype.sync = function (cb) {
164  cb(null, h('tr.msg-row', h('td', {colspan: 3},
165    h('hr')
166  )))
167}
168
169RenderMsg.prototype.recpsLine = function (cb) {
170  if (!this.value.private) return cb(), ''
171  var author = this.value.author
172  var recpsNotSelf = u.toArray(this.c.recps).filter(function (link) {
173    return u.linkDest(link) !== author
174  })
175  return this.render.privateLine(recpsNotSelf, cb)
176}
177
178RenderMsg.prototype.recpsIds = function () {
179  return this.value.private
180    ? u.toArray(this.c.recps).map(u.linkDest)
181    : []
182}
183
184RenderMsg.prototype.buttonsCommon = function () {
185  var chan = this.msg.value.content.channel
186  var recps = this.recpsIds()
187  return [
188    chan ? h('input', {type: 'hidden', name: 'channel', value: chan}) : '',
189    h('input', {type: 'hidden', name: 'link', value: this.msg.key}),
190    h('input', {type: 'hidden', name: 'recps', value: recps.join(',')})
191  ]
192}
193
194RenderMsg.prototype.voteButton = function (expression) {
195  var chan = this.msg.value.content.channel
196  return [
197    h('input', {type: 'hidden', name: 'vote_value', value: 1}),
198    h('input', {type: 'hidden', name: 'vote_expression', value: expression}),
199    h('input', {type: 'submit', name: 'action_vote', value: expression})]
200}
201
202RenderMsg.prototype.attendButton = function () {
203  var chan = this.msg.value.content.channel
204  return [
205    h('input', {type: 'submit', name: 'action_attend', value: 'attend'})
206  ]
207}
208
209RenderMsg.prototype.message = function (cb) {
210  if (this.opts.raw) return this.raw(cb)
211  if (this.msg.sync) return this.sync(cb)
212  if (typeof this.c === 'string') return this.encrypted(cb)
213  if (this.isMissing) return this.missing(cb)
214  switch (this.c.type) {
215    case 'post': return this.post(cb)
216    case 'ferment/like':
217    case 'robeson/like':
218    case 'vote': return this.vote(cb)
219    case 'about': return this.about(cb)
220    case 'contact': return this.contact(cb)
221    case 'pub': return this.pub(cb)
222    case 'channel': return this.channel(cb)
223    case 'git-repo': return this.gitRepo(cb)
224    case 'git-update': return this.gitUpdate(cb)
225    case 'pull-request': return this.gitPullRequest(cb)
226    case 'issue': return this.issue(cb)
227    case 'issue-edit': return this.issueEdit(cb)
228    case 'music-release-cc': return this.musicRelease(cb)
229    case 'ssb-dns': return this.dns(cb)
230    case 'gathering': return this.gathering(cb)
231    case 'micro': return this.micro(cb)
232    case 'ferment/audio':
233    case 'robeson/audio':
234      return this.audio(cb)
235    case 'ferment/repost':
236    case 'robeson/repost':
237      return this.repost(cb)
238    case 'ferment/update':
239    case 'robeson/update':
240      return this.update(cb)
241    case 'wifi-network': return this.wifiNetwork(cb)
242    case 'mutual/credit': return this.mutualCredit(cb)
243    case 'mutual/account': return this.mutualAccount(cb)
244    case 'npm-publish': return this.npmPublish(cb)
245    case 'ssb_chess_invite': return this.chessInvite(cb)
246    case 'ssb_chess_move': return this.chessMove(cb)
247    default: return this.object(cb)
248  }
249}
250
251RenderMsg.prototype.encrypted = function (cb) {
252  this.wrapMini(this.render.lockIcon(), cb)
253}
254
255RenderMsg.prototype.markdown = function (cb) {
256  if (this.opts.markdownSource)
257    return this.markdownSource(this.c.text, this.c.mentions)
258  return this.render.markdown(this.c.text, this.c.mentions)
259}
260
261RenderMsg.prototype.markdownSource = function (text, mentions) {
262  return h('div',
263    h('pre', String(text)),
264    mentions ? [
265      h('div', h('em', 'mentions:')),
266      this.valueTable(mentions, function () {})
267    ] : ''
268  ).innerHTML
269}
270
271RenderMsg.prototype.post = function (cb) {
272  var self = this
273  var done = multicb({pluck: 1, spread: true})
274  if (self.c.root === self.c.branch) done()()
275  else self.link(self.c.root, done())
276  self.links(self.c.branch, done())
277  done(function (err, rootLink, branchLinks) {
278    if (err) return self.wrap(u.renderError(err), cb)
279    self.wrap(h('div.ssb-post',
280      rootLink ? h('div', h('small', '>> ', rootLink)) : '',
281      branchLinks.map(function (a, i) {
282        return h('div', h('small', '> ', a))
283      }),
284      h('div.ssb-post-text', {innerHTML: self.markdown()})
285    ), cb)
286  })
287}
288
289RenderMsg.prototype.vote = function (cb) {
290  var self = this
291  var v = self.c.vote || self.c.like || {}
292  self.link(v, function (err, a) {
293    if (err) return cb(err)
294    self.wrapMini([
295      v.value > 0 ? 'dug' : v.value < 0 ? 'downvoted' : 'undug',
296      ' ', a,
297      v.reason ? [' as ', h('q', v.reason)] : ''
298    ], cb)
299  })
300}
301
302RenderMsg.prototype.getName = function (id, cb) {
303  switch (id && id[0]) {
304    case '%': return this.getMsgName(id, cb)
305    case '@': // fallthrough
306    case '&': return this.getAboutName(id, cb)
307    default: return cb(null, String(id))
308  }
309}
310
311RenderMsg.prototype.getMsgName = function (id, cb) {
312  var self = this
313  self.app.getMsg(id, function (err, msg) {
314    if (err && err.name == 'NotFoundError')
315      cb(null, id.substring(0, 10)+'...(missing)')
316    else if (err) cb(err)
317      // preserve security: only decrypt the linked message if we decrypted
318      // this message
319    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
320    else gotMsg(null, msg)
321  })
322  function gotMsg(err, msg) {
323    if (err) return cb(err)
324    new RenderMsg(self.render, self.app, msg, {wrap: false}).title(cb)
325  }
326}
327
328function truncate(str, len) {
329  str = String(str)
330  return str.length > len ? str.substr(0, len) + '...' : str
331}
332
333function title(str) {
334  return truncate(mdInline(str), 72)
335}
336
337RenderMsg.prototype.title = function (cb) {
338  var self = this
339  if (!self.c || typeof self.c !== 'object') {
340    cb(null, self.msg.key)
341  } else if (typeof self.c.text === 'string') {
342    if (self.c.type === 'post')
343      cb(null, title(self.c.text))
344    else
345      cb(null, '%' + self.c.type + ': ' + (self.c.title || title(self.c.text)))
346  } else {
347    if (self.c.type === 'ssb-dns')
348      cb(null, self.c.record && JSON.stringify(self.c.record.data) || self.msg.key)
349    else if (self.c.type === 'npm-publish')
350      self.npmPublishTitle(cb)
351    else
352    self.app.getAbout(self.msg.key, function (err, about) {
353      if (err) return cb(err)
354      var name = about.name || about.title || about.description
355      if (name) return cb(null, name)
356      self.message(function (err, el) {
357        if (err) return cb(err)
358        cb(null, '%' + title(h('div', el).textContent))
359      })
360    })
361  }
362}
363
364RenderMsg.prototype.getAboutName = function (id, cb) {
365  this.app.getAbout(id, function (err, about) {
366    cb(err, about && about.name || (String(id).substr(0, 8) + '…'))
367  })
368}
369
370RenderMsg.prototype.link = function (link, cb) {
371  var self = this
372  var ref = u.linkDest(link)
373  if (!ref) return cb(null, '')
374  self.getName(ref, function (err, name) {
375    if (err) name = truncate(ref, 10)
376    cb(null, h('a', {href: self.toUrl(ref)}, name))
377  })
378}
379
380RenderMsg.prototype.link1 = function (link, cb) {
381  var self = this
382  var ref = u.linkDest(link)
383  if (!ref) return cb(), ''
384  var a = h('a', {href: self.toUrl(ref)}, ref)
385  self.getName(ref, function (err, name) {
386    if (err) name = ref
387    a.childNodes[0].textContent = name
388    cb()
389  })
390  return a
391}
392
393RenderMsg.prototype.links = function (links, cb) {
394  var self = this
395  var done = multicb({pluck: 1})
396  u.toArray(links).forEach(function (link) {
397    self.link(link, done())
398  })
399  done(cb)
400}
401
402function dateTime(d) {
403  var date = new Date(d.epoch)
404  return date.toString()
405  // d.bias
406  // d.epoch
407}
408
409RenderMsg.prototype.about = function (cb) {
410  var done = multicb({pluck: 1, spread: true})
411  var elCb = done()
412
413  var isAttendingMsg = u.linkDest(this.c.attendee) === this.msg.value.author
414    && Object.keys(this.c).sort().join() === 'about,attendee,type'
415  if (isAttendingMsg) {
416    var attending = !this.c.attendee.remove
417    this.wrapMini([
418      attending ? ' is attending' : ' is not attending', ' ',
419      this.link1(this.c.about, done())
420      ], elCb)
421    return done(cb)
422  }
423
424  var img = u.linkDest(this.c.image)
425  // if there is a description, it is likely to be multi-line
426  var hasDescription = this.c.description != null
427  var wrap = hasDescription ? this.wrap : this.wrapMini
428  var isSelf = this.c.about === this.msg.value.author
429  // if this about message gives the thing a name, show its id
430  var showComputedName = !isSelf && !this.c.name
431
432  wrap.call(this, [
433    isSelf
434      ? hasDescription ? 'self-describes' : 'self-identifies'
435      : [hasDescription ? 'describes' : 'identifies', ' ',
436        !this.c.about ? '?'
437        : showComputedName ? this.link1(this.c.about, done())
438        : h('a', {href: this.toUrl(this.c.about)}, truncate(this.c.about, 10))
439      ],
440    ' as ',
441    this.c.name ? [h('ins', this.c.name), ' '] : '',
442    this.c.description ? h('div',
443      {innerHTML: this.render.markdown(this.c.description)}) : '',
444    this.c.title ? h('h3', this.c.title) : '',
445    this.c.attendee ? h('div',
446      this.link1(this.c.attendee.link, done()),
447      this.c.attendee.remove ? ' is not attending' : ' is attending'
448    ) : '',
449    this.c.startDateTime ? h('div',
450      'starting at ', dateTime(this.c.startDateTime)) : '',
451    this.c.endDateTime ? h('div',
452      'ending at ', dateTime(this.c.endDateTime)) : '',
453    this.c.location ? h('div', 'at ', this.c.location) : '',
454    img ? h('a', {href: this.toUrl(img)},
455      h('img.ssb-avatar-image', {
456        src: this.render.imageUrl(img),
457        alt: ' ',
458      })) : ''
459  ], elCb)
460  done(cb)
461}
462
463RenderMsg.prototype.contact = function (cb) {
464  var self = this
465  self.link(self.c.contact, function (err, a) {
466    if (err) return cb(err)
467    if (!a) a = "?"
468      self.wrapMini([
469        self.c.following && self.c.autofollow ? 'follows pub' :
470        self.c.following && self.c.pub ? 'autofollows' :
471        self.c.following ? 'follows' :
472        self.c.blocking ? 'blocks' :
473        self.c.flagged ? 'flagged' :
474        self.c.following === false ? 'unfollows' :
475        self.c.blocking === false ? 'unblocks' : '',
476        self.c.flagged === false ? 'unflagged' :
477        ' ', a,
478        self.c.note ? [
479          ' from ',
480          h('code', self.c.note)
481        ] : '',
482      ], cb)
483  })
484}
485
486RenderMsg.prototype.pub = function (cb) {
487  var self = this
488  var addr = self.c.address || {}
489  self.link(addr.key, function (err, pubLink) {
490    if (err) return cb(err)
491      self.wrapMini([
492        'connects to ', pubLink, ' at ',
493        h('code', addr.host + ':' + addr.port)], cb)
494  })
495}
496
497RenderMsg.prototype.channel = function (cb) {
498  var chan = '#' + this.c.channel
499  this.wrapMini([
500    this.c.subscribed ? 'subscribes to ' :
501    this.c.subscribed === false ? 'unsubscribes from ' : '',
502    h('a', {href: this.toUrl(chan)}, chan)], cb)
503}
504
505RenderMsg.prototype.gitRepo = function (cb) {
506  var self = this
507  var id = self.msg.key
508  var name = self.c.name
509  var upstream = self.c.upstream
510  self.link(upstream, function (err, upstreamA) {
511    if (err) upstreamA = ('a', {href: self.toUrl(upstream)}, String(name))
512    self.wrapMini([
513      upstream ? ['forked ', upstreamA, ': '] : '',
514      'git clone ',
515      h('code', h('small', 'ssb://' + id)),
516      name ? [' ', h('a', {href: self.toUrl(id)}, String(name))] : ''
517    ], cb)
518  })
519}
520
521RenderMsg.prototype.gitUpdate = function (cb) {
522  var self = this
523  // h('a', {href: self.toUrl(self.c.repo)}, 'ssb://' + self.c.repo),
524  var size = [].concat(self.c.packs, self.c.indexes)
525    .map(function (o) { return o && o.size })
526    .reduce(function (total, s) { return total + s })
527  self.link(self.c.repo, function (err, a) {
528    if (err) return cb(err)
529      self.wrap(h('div.ssb-git-update',
530        'git push ', a, ' ',
531        !isNaN(size) ? [self.render.formatSize(size), ' '] : '',
532        self.c.refs ? h('ul', Object.keys(self.c.refs).map(function (ref) {
533          var id = self.c.refs[ref]
534          var type = /^refs\/tags/.test(ref) ? 'tag' : 'commit'
535          var path = id && ('/git/' + type + '/' + encodeURIComponent(id)
536            + '?msg=' + encodeURIComponent(self.msg.key))
537          return h('li',
538            ref.replace(/^refs\/(heads|tags)\//, ''), ': ',
539            id ? h('a', {href: self.render.toUrl(path)}, h('code', id))
540               : h('em', 'deleted'))
541      })) : '',
542      Array.isArray(self.c.commits) ?
543        h('ul', self.c.commits.map(function (commit) {
544          var path = '/git/commit/' + encodeURIComponent(commit.sha1)
545            + '?msg=' + encodeURIComponent(self.msg.key)
546          return h('li', h('a', {href: self.render.toUrl(path)},
547            h('code', String(commit.sha1).substr(0, 8))), ' ',
548            self.linkify(String(commit.title)),
549            self.render.gitCommitBody(commit.body)
550          )
551        })) : '',
552      Array.isArray(self.c.tags) ?
553        h('ul', self.c.tags.map(function (tag) {
554          var path = '/git/tag/' + encodeURIComponent(tag.sha1)
555            + '?msg=' + encodeURIComponent(self.msg.key)
556          return h('li',
557            h('a', {href: self.render.toUrl(path)},
558              h('code', String(tag.sha1).substr(0, 8))), ' ',
559            'tagged ', String(tag.type), ' ',
560            h('code', String(tag.object).substr(0, 8)), ' ',
561            String(tag.tag)
562          )
563        })) : '',
564        self.c.commits_more ? h('div',
565          '+ ' + self.c.commits_more + ' more commits') : '',
566        self.c.tags_more ? h('div',
567          '+ ' + self.c.tags_more + ' more tags') : ''
568    ), cb)
569  })
570}
571
572RenderMsg.prototype.gitPullRequest = function (cb) {
573  var self = this
574  var done = multicb({pluck: 1, spread: true})
575  self.link(self.c.repo, done())
576  self.link(self.c.head_repo, done())
577  done(function (err, baseRepoLink, headRepoLink) {
578    if (err) return cb(err)
579    self.wrap(h('div.ssb-pull-request',
580      'pull request ',
581      'to ', baseRepoLink, ':', self.c.branch, ' ',
582      'from ', headRepoLink, ':', self.c.head_branch,
583      self.c.title ? h('h4', self.c.title) : '',
584      h('div', {innerHTML: self.markdown()})), cb)
585  })
586}
587
588RenderMsg.prototype.issue = function (cb) {
589  var self = this
590  self.link(self.c.project, function (err, projectLink) {
591    if (err) return cb(err)
592    self.wrap(h('div.ssb-issue',
593      'issue on ', projectLink,
594      self.c.title ? h('h4', self.c.title) : '',
595      h('div', {innerHTML: self.markdown()})), cb)
596  })
597}
598
599RenderMsg.prototype.issueEdit = function (cb) {
600  this.wrap('', cb)
601}
602
603RenderMsg.prototype.object = function (cb) {
604  this.wrap(h('pre', this.linkify(JSON.stringify(this.c, 0, 2))), cb)
605}
606
607RenderMsg.prototype.object = function (cb) {
608  var done = multicb({pluck: 1, spread: true})
609  var elCb = done()
610  this.wrap([
611    this.valueTable(this.c, done()),
612  ], elCb)
613  done(cb)
614}
615
616RenderMsg.prototype.valueTable = function (val, cb) {
617  var self = this
618  switch (typeof val) {
619    case 'object':
620      if (val === null) return cb(), ''
621      var done = multicb({pluck: 1, spread: true})
622      var el = Array.isArray(val)
623        ? h('ul', val.map(function (item) {
624          return h('li', self.valueTable(item, done()))
625        }))
626        : h('table.ssb-object', Object.keys(val).map(function (key) {
627          if (key === 'text') {
628            return h('tr',
629              h('td', h('strong', 'text')),
630              h('td', h('div', {
631                innerHTML: self.render.markdown(val.text, val.mentions)
632              }))
633            )
634          } else if (key === 'type') {
635            var type = val.type
636            return h('tr',
637              h('td', h('strong', 'type')),
638              h('td', h('a', {href: self.toUrl('/type/' + type)}, type))
639            )
640          }
641          return h('tr',
642            h('td', h('strong', key)),
643            h('td', self.valueTable(val[key], done()))
644          )
645        }))
646      done(cb)
647      return el
648    case 'string':
649      if (u.isRef(val)) return self.link1(val, cb)
650      return cb(), self.linkify(val)
651    case 'boolean':
652      return cb(), h('input', {
653        type: 'checkbox', disabled: 'disabled', checked: val
654      })
655    default:
656      return cb(), String(val)
657  }
658}
659
660RenderMsg.prototype.missing = function (cb) {
661  this.wrapMini(h('code', 'MISSING'), cb)
662}
663
664RenderMsg.prototype.issues = function (cb) {
665  var self = this
666  var done = multicb({pluck: 1, spread: true})
667  var issues = u.toArray(self.c.issues)
668  if (self.c.type === 'issue-edit' && self.c.issue) {
669    issues.push({
670      link: self.c.issue,
671      title: self.c.title,
672      open: self.c.open,
673    })
674  }
675  var els = issues.map(function (issue) {
676    var commit = issue.object || issue.label ? [
677      issue.object ? h('code', issue.object) : '', ' ',
678      issue.label ? h('q', issue.label) : ''] : ''
679    if (issue.merged === true)
680      return h('div',
681        'merged ', self.link1(issue, done()))
682    if (issue.open === false)
683      return h('div',
684        'closed ', self.link1(issue, done()))
685    if (issue.open === true)
686      return h('div',
687        'reopened ', self.link1(issue, done()))
688    if (typeof issue.title === 'string')
689      return h('div',
690        'renamed ', self.link1(issue, done()), ' to ', h('ins', issue.title))
691  })
692  done(cb)
693  return els.length > 0 ? [els, h('br')] : ''
694}
695
696RenderMsg.prototype.repost = function (cb) {
697  var self = this
698  var id = u.linkDest(self.c.repost)
699  self.app.getMsg(id, function (err, msg) {
700    if (err && err.name == 'NotFoundError')
701      gotMsg(null, id.substring(0, 10)+'...(missing)')
702    else if (err) gotMsg(err)
703    else if (self.msg.value.private) self.app.unboxMsg(msg, gotMsg)
704    else gotMsg(null, msg)
705  })
706  function gotMsg(err, msg) {
707    if (err) return cb(err)
708    var renderMsg = new RenderMsg(self.render, self.app, msg, {wrap: false})
709      renderMsg.message(function (err, msgEl) {
710        self.wrapMini(['reposted ',
711          h('code.ssb-id',
712            h('a', {href: self.render.toUrl(id)}, id)),
713          h('div', err ? u.renderError(err) : msgEl || '')
714        ], cb)
715    })
716  }
717}
718
719RenderMsg.prototype.update = function (cb) {
720  var id = String(this.c.update)
721  this.wrapMini([
722    h('div', 'updated ', h('code.ssb-id',
723      h('a', {href: this.render.toUrl(id)}, id))),
724    this.c.title ? h('h4.msg-title', this.c.title) : '',
725    this.c.description ? h('div',
726      {innerHTML: this.render.markdown(this.c.description)}) : ''
727  ], cb)
728}
729
730function formatDuration(s) {
731  return Math.floor(s / 60) + ':' + ('0' + s % 60).substr(-2)
732}
733
734RenderMsg.prototype.audio = function (cb) {
735  // fileName, fallbackFileName, overview
736  this.wrap(h('table', h('tr',
737    h('td',
738      this.c.artworkSrc
739      ? h('a', {href: this.render.toUrl(this.c.artworkSrc)}, h('img', {
740          src: this.render.imageUrl(this.c.artworkSrc),
741          alt: ' ',
742          width: 72,
743          height: 72,
744        }))
745      : ''),
746    h('td',
747      h('a', {href: this.render.toUrl(this.c.audioSrc)}, this.c.title),
748      isFinite(this.c.duration)
749        ? ' (' + formatDuration(this.c.duration) + ')'
750        : '',
751      this.c.description
752        ? h('p', {innerHTML: this.render.markdown(this.c.description)})
753        : ''
754  ))), cb)
755}
756
757RenderMsg.prototype.musicRelease = function (cb) {
758  var self = this
759  this.wrap([
760    h('table', h('tr',
761      h('td',
762        this.c.cover
763          ? h('a', {href: this.render.imageUrl(this.c.cover)}, h('img', {
764              src: this.render.imageUrl(this.c.cover),
765              alt: ' ',
766              width: 72,
767              height: 72,
768            }))
769          : ''),
770      h('td',
771        h('h4.msg-title', this.c.title),
772        this.c.text
773          ? h('div', {innerHTML: this.render.markdown(this.c.text)})
774          : ''
775      )
776    )),
777    h('ul', u.toArray(this.c.tracks).filter(Boolean).map(function (track) {
778      return h('li',
779        h('a', {href: self.render.toUrl(track.link)}, track.fname))
780    }))
781  ], cb)
782}
783
784RenderMsg.prototype.dns = function (cb) {
785  var self = this
786  var record = self.c.record || {}
787  var done = multicb({pluck: 1, spread: true})
788  var elCb = done()
789  self.wrap([
790    h('div',
791      h('p',
792        h('ins', {title: 'name'}, record.name), ' ',
793        h('span', {title: 'ttl'}, record.ttl), ' ',
794        h('span', {title: 'class'}, record.class), ' ',
795        h('span', {title: 'type'}, record.type)
796      ),
797      h('pre', {title: 'data'},
798        JSON.stringify(record.data || record.value, null, 2)),
799      !self.c.branch ? null : h('div',
800        'replaces: ', u.toArray(self.c.branch).map(function (id, i) {
801          return [self.link1(id, done()), i === 0 ? ', ' : '']
802        })
803      )
804    )
805  ], elCb)
806  done(cb)
807}
808
809RenderMsg.prototype.wifiNetwork = function (cb) {
810  var net = this.c.network || {}
811  this.wrap([
812    h('div', 'wifi network'),
813    h('table',
814      Object.keys(net).map(function (key) {
815        return h('tr',
816          h('td', key),
817          h('td', h('pre', JSON.stringify(net[key]))))
818      })
819    ),
820  ], cb)
821}
822
823RenderMsg.prototype.mutualCredit = function (cb) {
824  var self = this
825  self.link(self.c.account, function (err, a) {
826    if (err) return cb(err)
827    self.wrapMini([
828      'credits ', a || '?', ' ',
829      self.c.amount, ' ', self.c.currency,
830      self.c.memo ? [' for ', h('q', self.c.memo)] : ''
831    ], cb)
832  })
833}
834
835RenderMsg.prototype.mutualAccount = function (cb) {
836  return this.object(cb)
837}
838
839RenderMsg.prototype.gathering = function (cb) {
840  this.wrapMini('gathering', cb)
841}
842
843function unwrapP(html) {
844  return String(html).replace(/^<p>(.*)<\/p>\s*$/, function ($0, $1) {
845    return $1
846  })
847}
848
849RenderMsg.prototype.micro = function (cb) {
850  var el = h('span', {innerHTML: unwrapP(this.markdown())})
851  this.wrapMini(el, cb)
852}
853
854function hJoin(els, seperator) {
855  return els.map(function (el, i) {
856    return [i === 0 ? '' : separator, el]
857  })
858}
859
860function asNpmReadme(readme) {
861  if (!readme || readme === 'ERROR: No README data found!') return
862  return u.ifString(readme)
863}
864
865function singleValue(obj) {
866  if (!obj || typeof obj !== 'object') return obj
867  var keys = Object.keys(obj)
868  if (keys.length === 1) return obj[keys[0]]
869}
870
871function ifDifferent(obj, value) {
872  if (singleValue(obj) !== value) return obj
873}
874
875RenderMsg.prototype.npmPublish = function (cb) {
876  var self = this
877  var render = self.render
878  var pkg = self.c.meta || {}
879  var pkgReadme = asNpmReadme(pkg.readme)
880  var pkgDescription = u.ifString(pkg.description)
881
882  var versions = Object.keys(pkg.versions || {})
883  var singleVersion = versions.length === 1 ? versions[0] : null
884  var singleRelease = singleVersion && pkg.versions[singleVersion]
885  var singleReadme = singleRelease && asNpmReadme(singleRelease.readme)
886
887  var distTags = pkg['dist-tags'] || {}
888  var distTagged = {}
889  for (var distTag in distTags)
890    if (distTag !== 'latest')
891      distTagged[distTags[distTag]] = distTag
892
893  self.links(self.c.previousPublish, function (err, prevLinks) {
894    if (err) return cb(err)
895    self.wrap([
896      h('div',
897        'published ',
898        h('u', pkg.name), ' ',
899        hJoin(versions.map(function (version) {
900          var distTag = distTagged[version]
901          return [h('b', version), distTag ? [' (', h('i', distTag), ')'] : '']
902        }), ', ')
903      ),
904      pkgDescription ? h('div', h('q', self.linkify(pkgDescription))) : '',
905      prevLinks.length ? h('div', 'previous: ', prevLinks) : '',
906      pkgReadme && pkgReadme !== singleReadme ?
907        h('blockquote', {innerHTML: render.markdown(pkgReadme)}) : '',
908      versions.map(function (version, i) {
909        var release = pkg.versions[version] || {}
910        var license = u.ifString(release.license)
911        var author = ifDifferent(release.author, self.msg.value.author)
912        var description = u.ifString(release.description)
913        var readme = asNpmReadme(release.readme)
914        var keywords = u.toArray(release.keywords).map(u.ifString)
915        var dist = release.dist || {}
916        var size = u.ifNumber(dist.size)
917        return [
918          h > 0 ? h('br') : '',
919          version !== singleVersion ? h('div', 'version: ', version) : '',
920          author ? h('div', 'author: ', render.npmAuthorLink(author)) : '',
921          license ? h('div', 'license: ', h('code', license)) : '',
922          keywords.length ? h('div', 'keywords: ', keywords.join(', ')) : '',
923          size ? h('div', 'size: ', render.formatSize(size)) : '',
924          description && description !== pkgDescription ?
925            h('div', h('q', self.linkify(description))) : '',
926          readme ? h('blockquote', {innerHTML: render.markdown(readme)}) : ''
927        ]
928      })
929    ], cb)
930  })
931}
932
933RenderMsg.prototype.npmPublishTitle = function (cb) {
934  var pkg = this.c.meta || {}
935  var name = pkg.name || pkg._id || '?'
936
937  var taggedVersions = {}
938  for (var version in pkg.versions || {})
939    taggedVersions[version] = []
940
941  var distTags = pkg['dist-tags'] || {}
942  for (var distTag in distTags) {
943    if (distTag === 'latest') continue
944    var version = distTags[distTag] || '?'
945    var tags = taggedVersions[version] || (taggedVersions[version] = [])
946    tags.push(distTag)
947  }
948
949  cb(null, name + '@' + Object.keys(taggedVersions).map(function (version) {
950    var tags = taggedVersions[version]
951    return (tags.length ? tags.join(',') + ':' : '') + version
952  }).join(','))
953}
954
955function expandDigitToSpaces(n) {
956  return '         '.substr(-n)
957}
958
959function parseFenRank (line) {
960  return line.replace(/\d/g, expandDigitToSpaces).split('')
961}
962
963function parseChess(fen) {
964  var fields = String(fen).split(/\s+/)
965  var ranks = fields[0].split('/')
966  var f2 = fields[2] || ''
967  return {
968    board: ranks.map(parseFenRank),
969    /*
970    nextMove: fields[1] === 'b' ? 'black'
971            : fields[1] === 'w' ? 'white' : 'unknown',
972    castling: f2 === '-' ? {} : {
973      w: {
974        k: 0 < f2.indexOf('K'),
975        q: 0 < f2.indexOf('Q'),
976      },
977      b: {
978        k: 0 < f2.indexOf('k'),
979        q: 0 < f2.indexOf('q'),
980      }
981    },
982    enpassantTarget: fields[3] === '-' ? null : fields[3],
983    halfmoves: Number(fields[4]),
984    fullmoves: Number(fields[5]),
985    */
986  }
987}
988
989var chessSymbols = {
990  ' ': [' ', ''],
991  P: ['♙', 'white pawn'],
992  N: ['♘', 'white knight'],
993  B: ['♗', 'white bishop'],
994  R: ['♖', 'white rook'],
995  Q: ['♕', 'white queen'],
996  K: ['♔', 'white king'],
997  p: ['♟', 'black pawn'],
998  n: ['♞', 'black knight'],
999  b: ['♝', 'black bishop'],
1000  r: ['♜', 'black rook'],
1001  q: ['♛', 'black queen'],
1002  k: ['♚', 'black king'],
1003}
1004
1005function renderChessSymbol(c, loc) {
1006  var info = chessSymbols[c] || ['?', 'unknown']
1007  return h('span.symbol', {
1008    title: info[1] + (loc ? ' at ' + loc : '')
1009  }, info[0])
1010}
1011
1012function chessLocToIdxs(loc) {
1013  var m = /^([a-h])([1-8])$/.exec(loc)
1014  if (m) return [8 - m[2], m[1].charCodeAt(0) - 97]
1015}
1016
1017function lookupPiece(board, loc) {
1018  var idxs = chessLocToIdxs(loc)
1019  return board[idxs[0]] && board[idxs[0]][idxs[1]]
1020}
1021
1022function chessIdxsToLoc(i, j) {
1023  return 'abcdefgh'[j] + (8-i)
1024}
1025
1026RenderMsg.prototype.chessMove = function (cb) {
1027  var self = this
1028  var c = self.c
1029  var fen = c.fen && c.fen.length === 2 ? c.pgnMove : c.fen
1030  var game = parseChess(fen)
1031  var piece = game && lookupPiece(game.board, c.dest)
1032  self.link(self.c.root, function (err, rootLink) {
1033    if (err) return cb(err)
1034    self.wrap([
1035      h('div', h('small', '> ', rootLink)),
1036      h('p',
1037        // 'player ', (c.ply || ''), ' ',
1038        'moved ', (piece ? renderChessSymbol(piece) : ''), ' ',
1039        'from ', c.orig, ' ',
1040        'to ', c.dest
1041      ),
1042      h('table.chess-board',
1043        game.board.map(function (rank, i) {
1044          return h('tr', rank.map(function (piece, j) {
1045            var dark = (i ^ j) & 1
1046            return h('td', {
1047              class: 'chess-square-' + (dark ? 'dark' : 'light'),
1048            }, renderChessSymbol(piece, chessIdxsToLoc(i, j)))
1049          }))
1050        })
1051      )
1052    ], cb)
1053  })
1054}
1055
1056RenderMsg.prototype.chessInvite = function (cb) {
1057  var self = this
1058  var myColor = self.c.myColor
1059  self.link(self.c.inviting, function (err, link) {
1060    if (err) return cb(err)
1061    self.wrap([
1062      'invites ', link, ' to play chess',
1063      // myColor ? h('p', 'my color is ' + myColor) : ''
1064    ], cb)
1065  })
1066}
1067

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