Files: d47c6e10a9fe8fb04aee3e2736ee04a7f2896003 / sbot.js
6905 bytesRaw
1 | var pull = require('pull-stream') |
2 | var defer = require('pull-defer') |
3 | var { Value, onceTrue, watch, Set: MutantSet } = require('mutant') |
4 | var ref = require('ssb-ref') |
5 | var Reconnect = require('pull-reconnect') |
6 | var createClient = require('ssb-client') |
7 | var createFeed = require('ssb-feed') |
8 | var nest = require('depnest') |
9 | var ssbKeys = require('ssb-keys') |
10 | var flat = require('flat') |
11 | |
12 | exports.needs = nest({ |
13 | 'config.sync.load': 'first', |
14 | 'keys.sync.load': 'first', |
15 | 'sbot.obs.connectionStatus': 'first', |
16 | 'sbot.hook.publish': 'map' |
17 | }) |
18 | |
19 | exports.gives = { |
20 | sbot: { |
21 | sync: { |
22 | cache: true |
23 | }, |
24 | async: { |
25 | get: true, |
26 | publish: true, |
27 | addBlob: true, |
28 | gossipConnect: true, |
29 | friendsGet: true |
30 | }, |
31 | pull: { |
32 | log: true, |
33 | userFeed: true, |
34 | messagesByType: true, |
35 | feed: true, |
36 | links: true, |
37 | backlinks: true, |
38 | stream: true, |
39 | getBlob: true |
40 | }, |
41 | obs: { |
42 | connectionStatus: true, |
43 | connection: true, |
44 | connectedPeers: true, |
45 | localPeers: true |
46 | } |
47 | } |
48 | } |
49 | |
50 | exports.create = function (api) { |
51 | const config = api.config.sync.load() |
52 | const keys = api.keys.sync.load() |
53 | var cache = {} |
54 | |
55 | var sbot = null |
56 | var connection = Value() |
57 | var connectionStatus = Value() |
58 | var connectedPeers = MutantSet() |
59 | var localPeers = MutantSet() |
60 | |
61 | var rec = Reconnect(function (isConn) { |
62 | function notify (value) { |
63 | isConn(value); connectionStatus.set(value) |
64 | } |
65 | |
66 | var opts = { |
67 | path: config.path, |
68 | remote: config.remote, |
69 | host: config.host, |
70 | port: config.port, |
71 | key: config.key, |
72 | appKey: config.caps.shs, |
73 | timers: config.timers, |
74 | caps: config.caps, |
75 | friends: config.friends |
76 | } |
77 | |
78 | createClient(keys, opts, function (err, _sbot) { |
79 | if (err) { |
80 | return notify(err) |
81 | } |
82 | |
83 | sbot = _sbot |
84 | sbot.on('closed', function () { |
85 | sbot = null |
86 | connection.set(null) |
87 | notify(new Error('closed')) |
88 | }) |
89 | |
90 | connection.set(sbot) |
91 | notify() |
92 | }) |
93 | }) |
94 | |
95 | var internal = { |
96 | getLatest: rec.async(function (id, cb) { |
97 | sbot.getLatest(id, cb) |
98 | }), |
99 | add: rec.async(function (msg, cb) { |
100 | sbot.add(msg, cb) |
101 | }) |
102 | } |
103 | |
104 | setInterval(function () { |
105 | if (sbot) { |
106 | sbot.gossip.peers((err, peers) => { |
107 | if (err) return console.error(err) |
108 | localPeers.set(peers.filter(x => x.source === 'local').map(x => x.key)) |
109 | connectedPeers.set(peers.filter(x => x.state === 'connected').map(x => x.key)) |
110 | }) |
111 | } |
112 | }, 1000 * 60) |
113 | |
114 | watch(connection, (sbot) => { |
115 | if (sbot) { |
116 | sbot.gossip.peers((err, peers) => { |
117 | if (err) return console.error(err) |
118 | connectedPeers.set(peers.filter(x => x.state === 'connected').map(x => x.key)) |
119 | localPeers.set(peers.filter(x => x.source === 'local').map(x => x.key)) |
120 | }) |
121 | pull( |
122 | sbot.gossip.changes(), |
123 | pull.drain(data => { |
124 | if (data.peer) { |
125 | if (data.type === 'remove' || data.type === 'disconnect') { |
126 | connectedPeers.delete(data.peer.key) |
127 | } else { |
128 | if (data.peer.source === 'local') { |
129 | localPeers.add(data.peer.key) |
130 | } |
131 | if (data.peer.state === 'connected') { |
132 | connectedPeers.add(data.peer.key) |
133 | } else { |
134 | connectedPeers.delete(data.peer.key) |
135 | } |
136 | } |
137 | } |
138 | }) |
139 | ) |
140 | } |
141 | }) |
142 | |
143 | var feed = createFeed(internal, keys, {remote: true}) |
144 | |
145 | return { |
146 | sbot: { |
147 | sync: { |
148 | cache: () => cache |
149 | }, |
150 | async: { |
151 | get: rec.async(function (key, cb) { |
152 | if (typeof cb !== 'function') { |
153 | throw new Error('cb must be function') |
154 | } |
155 | if (cache[key]) cb(null, cache[key]) |
156 | else { |
157 | sbot.get(key, function (err, value) { |
158 | if (err) return cb(err) |
159 | runHooks({key, value}) |
160 | cb(null, value) |
161 | }) |
162 | } |
163 | }), |
164 | publish: rec.async((content, cb) => { |
165 | if (content.recps) { |
166 | content = ssbKeys.box(content, content.recps.map(e => { |
167 | return ref.isFeed(e) ? e : e.link |
168 | })) |
169 | } else { |
170 | var flatContent = flat(content) |
171 | Object.keys(flatContent).forEach(key => { |
172 | var val = flatContent[key] |
173 | if (ref.isBlob(val)) { |
174 | sbot.blobs.push(val, err => { |
175 | if (err) console.error(err) |
176 | }) |
177 | } |
178 | }) |
179 | } |
180 | |
181 | if (sbot) { |
182 | // instant updating of interface (just incase sbot is busy) |
183 | runHooks({ |
184 | publishing: true, |
185 | timestamp: Date.now(), |
186 | value: { |
187 | timestamp: Date.now(), |
188 | author: keys.id, |
189 | content |
190 | } |
191 | }) |
192 | } |
193 | |
194 | feed.add(content, (err, msg) => { |
195 | if (err) console.error(err) |
196 | else if (!cb) console.log(msg) |
197 | cb && cb(err, msg) |
198 | }) |
199 | }), |
200 | addBlob: rec.async((stream, cb) => { |
201 | return pull( |
202 | stream, |
203 | sbot.blobs.add(cb) |
204 | ) |
205 | }), |
206 | gossipConnect: rec.async(function (opts, cb) { |
207 | sbot.gossip.connect(opts, cb) |
208 | }), |
209 | friendsGet: rec.async(function (opts, cb) { |
210 | sbot.friends.get(opts, cb) |
211 | }) |
212 | }, |
213 | pull: { |
214 | backlinks: rec.source(query => { |
215 | return sbot.backlinks.read(query) |
216 | }), |
217 | userFeed: rec.source(opts => { |
218 | return sbot.createUserStream(opts) |
219 | }), |
220 | messagesByType: rec.source(opts => { |
221 | return sbot.messagesByType(opts) |
222 | }), |
223 | feed: rec.source(function (opts) { |
224 | return pull( |
225 | sbot.createFeedStream(opts), |
226 | pull.through(runHooks) |
227 | ) |
228 | }), |
229 | log: rec.source(opts => { |
230 | return pull( |
231 | sbot.createLogStream(opts), |
232 | pull.through(runHooks) |
233 | ) |
234 | }), |
235 | links: rec.source(function (query) { |
236 | return sbot.links(query) |
237 | }), |
238 | stream: function (fn) { |
239 | var stream = defer.source() |
240 | onceTrue(connection, function (connection) { |
241 | stream.resolve(fn(connection)) |
242 | }) |
243 | return stream |
244 | }, |
245 | getBlob: rec.source(function (opts) { |
246 | return sbot.blobs.get(opts) |
247 | }) |
248 | }, |
249 | obs: { |
250 | connectionStatus: (listener) => connectionStatus(listener), |
251 | connection, |
252 | connectedPeers: () => connectedPeers, |
253 | localPeers: () => localPeers |
254 | } |
255 | } |
256 | } |
257 | |
258 | // scoped |
259 | |
260 | function runHooks (msg) { |
261 | if (msg.publishing) { |
262 | api.sbot.hook.publish(msg) |
263 | } else if (!cache[msg.key]) { |
264 | // cache[msg.key] = msg.value |
265 | // api.sbot.hook.feed(msg) |
266 | } |
267 | } |
268 | } |
269 | |
270 | |
271 |
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