1 files changed, 98 insertions, 11 deletions

diff --git a/lib/app.js b/lib/app.js
index e503443..03df277 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -4,14 +4,14 @@ var lru = require('hashlru')
 var pkg = require('../package')
 var u = require('./util')
 var pull = require('pull-stream')
-var ssbAvatar = require('ssb-avatar')
 var hasher = require('pull-hash/ext/ssb')
 var multicb = require('multicb')
 var paramap = require('pull-paramap')
 var Contacts = require('ssb-contact')
-
+var About = require('./about')
 var Serve = require('./serve')
 var Render = require('./render')
+var Git = require('./git')
 
 module.exports = App
 
@@ -32,15 +32,17 @@ function App(sbot, config) {
   }
 
   sbot.get = memo({cache: lru(100)}, sbot.get)
+  this.about = new About(this, sbot.id)
   this.getMsg = memo({cache: lru(100)}, getMsgWithValue, sbot)
   this.getAbout = memo({cache: this.aboutCache = lru(500)},
-    getAbout.bind(this), sbot, sbot.id)
+    this._getAbout.bind(this))
   this.unboxContent = memo({cache: lru(100)}, sbot.private.unbox)
-  this.reverseNameCache = lru(100)
+  this.reverseNameCache = lru(500)
 
   this.unboxMsg = this.unboxMsg.bind(this)
 
   this.render = new Render(this, this.opts)
+  this.git = new Git(this)
 }
 
 App.prototype.go = function () {
@@ -175,10 +177,7 @@ App.prototype.addBlob = function (cb) {
   done(function (err, hash, add) {
     cb(err, hash)
   })
-  return pull(
-    hasher(hashCb),
-    this.sbot.blobs.add(addCb)
-  )
+  return sink
 }
 
 App.prototype.pushBlob = function (id, cb) {
@@ -186,11 +185,56 @@ App.prototype.pushBlob = function (id, cb) {
   this.sbot.blobs.push(id, cb)
 }
 
+App.prototype.readBlob = function (link) {
+  link = u.toLink(link)
+  return this.sbot.blobs.get({
+    hash: link.link,
+    size: link.size,
+  })
+}
+
+App.prototype.readBlobSlice = function (link, opts) {
+  if (this.sbot.blobs.getSlice) return this.sbot.blobs.getSlice({
+    hash: link.link,
+    size: link.size,
+    start: opts.start,
+    end: opts.end,
+  })
+  return pull(
+    this.readBlob(link),
+    u.pullSlice(opts.start, opts.end)
+  )
+}
+
+App.prototype.ensureHasBlobs = function (links, cb) {
+  var self = this
+  var done = multicb({pluck: 1})
+  links.forEach(function (link) {
+    var cb = done()
+    self.sbot.blobs.size(link.link, function (err, size) {
+      if (err) cb(err)
+      else if (size == null) cb(null, link)
+      else cb()
+    })
+  })
+  done(function (err, missingLinks) {
+    if (err) console.trace(err)
+    missingLinks = missingLinks.filter(Boolean)
+    if (missingLinks.length == 0) return cb()
+    return cb({name: 'BlobNotFoundError', links: missingLinks})
+  })
+}
+
 App.prototype.getReverseNameSync = function (name) {
   var id = this.reverseNameCache.get(name)
   return id
 }
 
+App.prototype.getNameSync = function (name) {
+  var about = this.aboutCache.get(name)
+  return about && about.name
+}
+
 function getMsgWithValue(sbot, id, cb) {
   if (!id) return cb()
   sbot.get(id, function (err, value) {
@@ -199,11 +243,12 @@ function getMsgWithValue(sbot, id, cb) {
   })
 }
 
-function getAbout(sbot, src, id, cb) {
+App.prototype._getAbout = function (id, cb) {
   var self = this
-  ssbAvatar(sbot, src, id, function (err, about) {
+  if (!u.isRef(id)) return cb(null, {})
+  self.about.get(id, function (err, about) {
     if (err) return cb(err)
-    var sigil = id && id[0] || '@'
+    var sigil = id[0] || '@'
     if (about.name && about.name[0] !== sigil) {
       about.name = sigil + about.name
     }
@@ -212,6 +257,10 @@ function getAbout(sbot, src, id, cb) {
   })
 }
 
+App.prototype.pullGetMsg = function (id) {
+  return pull.asyncMap(this.getMsg)(pull.once(id))
+}
+
 App.prototype.createLogStream = function (opts) {
   opts = opts || {}
   return opts.sortByTimestamp
@@ -282,6 +331,40 @@ App.prototype.streamChannels = function (opts) {
   )
 }
 
+App.prototype.streamMyChannels = function (id, opts) {
+  // use ssb-query plugin if it is available, since it has an index for
+  // author + type
+  if (this.sbot.query) return pull(
+    this.sbot.query.read({
+      reverse: true,
+      query: [
+        {$filter: {
+          value: {
+            author: id,
+            content: {type: 'channel', subscribed: true}
+          }
+        }},
+        {$map: ['value', 'content', 'channel']}
+      ]
+    }),
+    pull.unique()
+  )
+
+  return pull(
+    this.sbot.createUserStream({id: id, reverse: true}),
+    this.unboxMessages(),
+    pull.filter(function (msg) {
+      if (msg.value.content.type == 'channel') {
+        return msg.value.content.subscribed
+      }
+    }),
+    pull.map(function (msg) {
+      return msg.value.content.channel
+    }),
+    pull.unique()
+  )
+}
+
 App.prototype.createContactStreams = function (id) {
   return new Contacts(this.sbot).createContactStreams(id)
 }
@@ -345,3 +428,7 @@ App.prototype.getVoted = function (_opts, cb) {
     })
   )
 }
+
+App.prototype.createAboutStreams = function (id) {
+  return this.about.createAboutStreams(id)
+}