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var fs = require('fs')
var path = require('path')
var pull = require('pull-stream')
var cat = require('pull-cat')
var paramap = require('pull-paramap')
var h = require('hyperscript')
var marked = require('ssb-marked')
var emojis = require('emoji-named-characters')
var qs = require('querystring')
var u = require('./util')
var multicb = require('multicb')
var RenderMsg = require('./render-msg')
module.exports = Render
function MdRenderer(render) {
marked.Renderer.call(this, {})
this.render = render
}
MdRenderer.prototype = new marked.Renderer()
MdRenderer.prototype.urltransform = function (href) {
return this.render.toUrl(href)
}
MdRenderer.prototype.image = function (href, title, text) {
href = this.render.imageUrl(href)
var name = text || title
if (name) href += '?name=' + encodeURIComponent(name)
return h('img', {
src: href,
alt: text,
title: title || undefined
}).outerHTML
}
MdRenderer.prototype.link = function(href, title, text) {
href = this.urltransform(href)
var name = href && /^\/(&|%26)/.test(href) && (title || text)
if (name) href += '?name=' + encodeURIComponent(name)
return '<a'
+ (href !== false
? ' href="' + href + '"'
: ' class="bad"')
+ (title ? ' title="' + title + '"' : '')
+ '>' + text + '</a>'
};
function lexerRenderEmoji(emoji) {
var el = this.renderer.render.emoji(emoji)
return el && el.outerHTML || el
}
function Render(app, opts) {
this.app = app
this.opts = opts
this.markedOpts = {
gfm: true,
mentions: true,
tables: true,
breaks: true,
pedantic: false,
sanitize: true,
smartLists: true,
smartypants: false,
emoji: lexerRenderEmoji,
renderer: new MdRenderer(this),
}
}
Render.prototype.emoji = function (emoji) {
var name = ':' + emoji + ':'
return emoji in emojis ?
h('img.ssb-emoji', {
src: this.opts.emoji_base + emoji + '.png',
alt: name,
title: name,
}) : name
}
function fixSymbols(str) {
// Dillo doesn't do fallback fonts, so specifically render fancy characters
// with Symbola
return str.replace(/[^\u0000-\u00ff]+/, function ($0) {
return '<span class="symbol">' + $0 + '</span>'
})
}
Render.prototype.markdown = function (text, mentions) {
if (!text) return ''
var mentionsObj = this._mentions = {}
if (Array.isArray(mentions)) mentions.forEach(function (link) {
if (!link) return
else if (link.name)
mentionsObj['@' + link.name] = link.link
else if (link.host === 'http://localhost:7777')
mentionsObj[link.href] = link.link
})
var out = marked(String(text), this.markedOpts)
delete this._mentions
return fixSymbols(out)
}
Render.prototype.imageUrl = function (ref) {
var m = /^blobstore:(.*)/.exec(ref)
if (m) ref = m[1]
return this.opts.img_base + ref
}
Render.prototype.toUrl = function (href) {
if (!href) return href
var mentions = this._mentions
if (mentions && href in this._mentions) href = this._mentions[href]
if (/^ssb:\/\//.test(href)) href = href.substr(6)
switch (href[0]) {
case '%':
if (!u.isRef(href)) return false
return this.opts.base + encodeURIComponent(href)
case '@':
if (!u.isRef(href)) return false
return this.opts.base + href
case '&':
if (!u.isRef(href)) return false
return this.opts.blob_base + href
case '#': return this.opts.base + encodeURIComponent(href)
case '/': return this.opts.base + href.substr(1)
case '?': return this.opts.base + 'search?q=' + encodeURIComponent(href)
}
var m = /^blobstore:(.*)/.exec(href)
if (m) return this.opts.blob_base + m[1]
if (/^javascript:/.test(href)) return false
return href
}
Render.prototype.lockIcon = function () {
return this.emoji('lock')
}
Render.prototype.avatarImage = function (link, cb) {
var self = this
if (!link) return cb(), ''
if (typeof link === 'string') link = {link: link}
var img = h('img.ssb-avatar-image', {
alt: ' '
})
if (link.image) gotAbout(null, link)
else self.app.getAbout(link.link, gotAbout)
function gotAbout(err, about) {
if (err) return cb(err)
if (!about.image) img.src = self.toUrl('/static/fallback.png')
else img.src = self.imageUrl(about.image)
cb()
}
return img
}
Render.prototype.prepareLink = function (link, cb) {
if (typeof link === 'string') link = {link: link}
if (link.name || !link.link) cb(null, link)
else this.app.getAbout(link.link, function (err, about) {
if (err) return cb(err)
link.name = about.name
if (link.name && link.name[0] === link.link[0]) {
link.name = link.name.substr(1)
}
cb(null, link)
})
}
Render.prototype.prepareLinks = function (links, cb) {
var self = this
if (!links) return cb()
var done = multicb({pluck: 1})
if (Array.isArray(links)) links.forEach(function (link) {
self.prepareLink(link, done())
})
done(cb)
}
Render.prototype.idLink = function (link, cb) {
var self = this
if (!link) return cb(), ''
var a = h('a', ' ')
self.prepareLink(link, function (err, link) {
if (err) return cb(err)
a.href = self.toUrl(link.link)
a.childNodes[0].textContent = '@' + link.name
cb()
})
return a
}
Render.prototype.privateLine = function (recps, cb) {
var done = multicb({pluck: 1, spread: true})
var self = this
var el = h('div.recps',
self.lockIcon(),
Array.isArray(recps)
? recps.map(function (recp) {
return [' ', self.idLink(recp, done())]
}) : '')
done(cb)
return el
}
Render.prototype.msgLink = function (msg, cb) {
var self = this
var el = h('span')
var a = h('a', {href: self.toUrl(msg.key)}, msg.key)
self.app.unboxMsg(msg, function (err, msg) {
if (err) return el.appendChild(u.renderError(err)), cb()
var renderMsg = new RenderMsg(self, self.app, msg, {wrap: false})
renderMsg.title(function (err, title) {
if (err) return el.appendChild(u.renderError(err)), cb()
a.childNodes[0].textContent = title
cb()
})
})
return a
}
Render.prototype.renderMsg = function (msg, raw, cb) {
new RenderMsg(this, this.app, msg).message(raw, cb)
}
Render.prototype.renderFeeds = function (raw) {
var self = this
return paramap(function (msg, cb) {
self.renderMsg(msg, raw, cb)
}, 4)
}
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