git ssb

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var isVisible = require('is-visible').isVisible
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var h = require('hyperscript')
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var plugs = require('../plugs')
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var avatar = plugs.first(exports.avatar = [])
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var sbot_gossip_peers = plugs.first(exports.sbot_gossip_peers = [])
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var sbot_gossip_connect = plugs.first(exports.sbot_gossip_connect = [])
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//sbot_gossip_connect
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//sbot_gossip_add
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var human = require('human-time')
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function legacyToMultiServer(addr) {
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  return 'net:'+addr.host + ':'+addr.port + '~shs:'+addr.key.substring(1).replace('.ed25519','')
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}
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exports.menu_items = function () {
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  return h('a', {href: '#/network'}, '/network')
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}
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//types of peers
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//on the same wifi network
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function isLocal (e) {
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  // don't rely on private ip address, because
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  // cjdns creates fake private ip addresses.
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  return ip.isPrivate(e.host) && e.type === 'local'
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}
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//pub is running scuttlebot >=8
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//have connected successfully.
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function isLongterm (e) {
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  return e.ping && e.ping.rtt.mean > 0
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}
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//pub is running scuttlebot < 8
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//have connected sucessfully
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function isLegacy (peer) {
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  return /connect/.test(peer.state) || peer.duration.mean > 0 && !exports.isLongterm(peer)
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}
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//tried to connect, but failed.
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function isInactive (e) {
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  return e.stateChange && e.duration.mean == 0
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}
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//havn't tried to connect peer yet.
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function isUnattempted (e) {
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  return !e.stateChange
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}
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function getType (e) {
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  return (
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      isLongterm(e)    ? 'modern'
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    : isLegacy(e)      ? 'legacy'
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    : isInactive(e)    ? 'inactive'
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    : isUnattempted(e) ? 'unattempted'
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    :                    'other' //should never happen
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  )
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}
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var states = {
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  connected: 3,
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  connecting: 2
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}
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var types = {
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  modern: 4,
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  legacy: 3,
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  inactive: 2,
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  unattempted: 1,
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  other: 0
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}
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function round(n) {
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  return Math.round(n*100)/100
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}
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function duration (s) {
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  if(!s) return s
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  if (Math.abs(s) > 30000)
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    return round(s/60000)+'m'
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  else if (Math.abs(s) > 500)
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    return round(s/1000)+'s'
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  else
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    return round(s)+'ms'
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}
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exports.screen_view = function (path) {
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  if(path !== '/network') return
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  var ol = h('ul.network')
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  ;(function poll () {
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    //if this tab isn't open, don't update.
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    //todo: make a better way to do this...
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    if(!isVisible(ol))
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      return setTimeout(poll, 1000)
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    sbot_gossip_peers(function (err, list) {
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      ol.innerHTML = ''
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      list.sort(function (a, b) {
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        return (
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          (states[b.state] || 0) - (states[a.state] || 0)
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          || types[getType(b)] - types[getType(a)]
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          || b.stateChange - a.stateChange
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        )
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      }).forEach(function (peer) {
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        ol.appendChild(h('div',
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          avatar(peer.key, 'thumbnail'),
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          h('div',
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            peer.state || 'not connected',
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            ' ',
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            getType(peer),
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            ' ',
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            //TODO: show nicer details, with labels. etc.
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            peer.ping ? duration(peer.ping.rtt.mean) : '',
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            ' ',
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            peer.ping ? duration(peer.ping.skew.mean) : '',
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            h('label',
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              {title: new Date(peer.stateChange).toString()},
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              peer.stateChange && ('(' + human(new Date(peer.stateChange))) + ')')
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            ),
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            'source:'+peer.source,
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            h('pre', legacyToMultiServer(peer)),
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            h('button', 'connect', {onclick: function () {
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              sbot_gossip_connect(peer, function (err) {
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                if(err) console.error(err)
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                else console.log('connected to', peer)
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              })
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            }})
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          )
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        )
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      })
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      setTimeout(poll, 5000)
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    })
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  })()
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  return h('div.column.scroll-y', ol)
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}
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