git ssb

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var h = require('hyperscript')
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var pull = require('pull-stream')
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var sbot = require('./scuttlebot')
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var human = require('human-time')
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var id = require('./keys').id
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var mentions = require('ssb-mentions')
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var tools = require('./tools')
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var mime = require('simple-mime')('application/octect-stream')
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var split = require('split-buffer')
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var route = require('./views')
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function file_input (onAdded) {
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  return h('label.btn', 'Upload file',
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    h('input', { type: 'file', hidden: true,
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    onchange: function (ev) {
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      var file = ev.target.files[0]
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      if (!file) return
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      var reader = new FileReader()
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      reader.onload = function () {
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        pull(
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          pull.values(split(new Buffer(reader.result), 64*1024)),
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          sbot.addblob(function (err, blob) {
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            if(err) return console.error(err)
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            onAdded({
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              link: blob,
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              name: file.name,
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              size: reader.result.length || reader.result.byteLength,
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              type: mime(file.name)
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            })
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          })
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        )
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      }
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      reader.readAsArrayBuffer(file)
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    }
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  }))
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}
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module.exports = function (opts, fallback) {
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  var files = []
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  var filesById = {}
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  var composer = h('div.composer')
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  var container = h('div.container')
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  if (opts.mentions) {
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    var textarea = h('textarea.compose', opts.mentions)
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  }
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  else if (opts.type == 'post')
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    var textarea = h('textarea.compose', {placeholder: opts.placeholder || 'Write a message'})
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  else
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    var textarea = h('textarea.compose', {placeholder: opts.placeholder || 'Write a message'}, fallback.messageText) 
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  var cancelBtn = h('button.btn', 'Cancel', {
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    onclick: function () {
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      var cancel
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      console.log(opts)
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      if (opts.type == 'edit') {
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        cancel = document.getElementById('edit:' + opts.branch.substring(0,44))
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        var oldMessage = h('div.message__body', tools.markdown(fallback.messageText))
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        cancel.parentNode.replaceChild(oldMessage, cancel)
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        oldMessage.parentNode.appendChild(fallback.buttons)
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      } else if (opts.branch) {
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        //cancel reply composer 
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        cancel = document.getElementById('re:' + opts.branch.substring(0,44))
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        cancel.parentNode.removeChild(cancel)
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        message = document.getElementById(opts.branch.substring(0,44))
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        message.appendChild(fallback.buttons)
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      } else {
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        // cancel generic composer
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        cancel = document.getElementById('composer')
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        cancel.parentNode.removeChild(cancel)
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      }
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    }
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  })
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  var initialButtons = h('span', 
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    h('button.btn', 'Preview', {
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      onclick: function () {
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        if (textarea.value) {
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          var msg = {}
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          msg.value = {
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            "author": id,
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            "content": opts
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          }
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          msg.value.content.text = textarea.value
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          msg.value.content.mentions = mentions(textarea.value).map(
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            function (mention) {
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              var file = filesById[mention.link]
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              if (file) {
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                if (file.type) mention.type = file.type
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                if (file.size) mention.size = file.size
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              }
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              return mention
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            }
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          )
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          if (opts.recps) 
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            msg.value.private = true
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          console.log(msg)
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          if (opts.type == 'post') 
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            var header = tools.header(msg)
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          if (opts.type == 'update')
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            var header = tools.timestamp(msg, {edited: true})
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          var preview = h('div',
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            header,
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            h('div.message__content', tools.markdown(msg.value.content.text)),
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            h('button.btn', 'Publish', {
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              onclick: function () {
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                if (msg.value.content) {
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                  sbot.publish(msg.value.content, function (err, msg) {
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                    if(err) throw err
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                    console.log('Published!', msg)
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                    if (opts.type == 'edit') {
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                      var message = document.getElementById(opts.branch.substring(0,44))
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                      fallback.messageText = msg.value.content.text
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                      var editBody = h('div.message__body',
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                        tools.timestamp(msg, {edited: true}),
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                        h('div', tools.markdown(msg.value.content.text))
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                      )
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                      message.replaceChild(editBody, message.childNodes[message.childNodes.length - 1])
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                      editBody.parentNode.appendChild(fallback.buttons)
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                    } else {
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                      if (opts.branch)
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                        cancel = document.getElementById('re:' + opts.branch.substring(0,44))
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                      else
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                        cancel = document.getElementById('composer')
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                      cancel.parentNode.removeChild(cancel)  
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                    }
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                  })
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                }
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              }
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            }),
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            h('button.btn', 'Cancel', {
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              onclick: function () {
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                composer.replaceChild(container, composer.firstChild)
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                container.appendChild(textarea)
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                container.appendChild(initialButtons)
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              }
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            })
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          )
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          composer.replaceChild(preview, composer.firstChild)
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        }
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      }
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    }),
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    file_input(function (file) {
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      files.push(file)
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      filesById[file.link] = file
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      var embed = file.type.indexOf('image/') === 0 ? '!' : ''
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      textarea.value += embed + '['+file.name+']('+file.link+')'
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    }),
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    cancelBtn
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  )
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  composer.appendChild(container)
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  container.appendChild(textarea)
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  container.appendChild(initialButtons)
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  return composer
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} 
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