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Merge pull request #4 from ipfs/network
network
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,18 +1,82 @@ | ||
| 'use strict' | ||
|
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| const bl = require('bl') | ||
| const async = require('async') | ||
| const Message = require('../message') | ||
|
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| module.exports = class Network { | ||
| constructor (libp2p) { | ||
| // TODO: Implement me | ||
| constructor (libp2p, peerBook, bitswap) { | ||
| this.libp2p = libp2p | ||
| this.peerBook = peerBook | ||
| this.bitswap = bitswap | ||
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| this._attachSwarmListeners() | ||
| } | ||
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| _attachSwarmListeners () { | ||
| this.libp2p.swarm.handle('/ipfs/bitswap/1.0.0', this._onConnection.bind(this)) | ||
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| this.libp2p.swarm.on('peer-mux-established', this._onPeerMux.bind(this)) | ||
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| this.libp2p.swarm.on('peer-mux-closed', this._onPeerMuxClosed.bind(this)) | ||
| } | ||
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| _onConnection (conn) { | ||
| conn.pipe(bl((err, data) => { | ||
| conn.end() | ||
| if (err) { | ||
| return this.bitswap._receiveError(err) | ||
| } | ||
| let msg | ||
| try { | ||
| msg = Message.fromProto(data) | ||
| } catch (err) { | ||
| return this.bitswap._receiveError(err) | ||
| } | ||
| this.bitswap._receiveMessage(conn.peerId, msg) | ||
| })) | ||
| } | ||
|
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| _onPeerMux (peerInfo) { | ||
| this.bitswap._onPeerConnected(peerInfo.id) | ||
| } | ||
|
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| _onPeerMuxClosed (peerInfo) { | ||
| this.bitswap._onPeerDisconnected(peerInfo.id) | ||
| } | ||
|
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| // Connect to the given peer | ||
| connectTo (peerId, cb) { | ||
| // TODO: Implement me | ||
| const done = (err) => async.setImmediate(() => cb(err)) | ||
| // NOTE: For now, all this does is ensure that we are | ||
| // connected. Once we have Peer Routing, we will be able | ||
| // to find the Peer | ||
| if (this.libp2p.swarm.muxedConns[peerId.toB58String()]) { | ||
| done() | ||
| } else { | ||
| done(new Error('Could not connect to peer with peerId:', peerId.toB58String())) | ||
| } | ||
| } | ||
|
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| // Send the given msg (instance of Message) to the given peer | ||
| sendMessage (peerId, msg, cb) { | ||
| // TODO: Implement me | ||
| const done = (err) => async.setImmediate(() => cb(err)) | ||
| let peerInfo | ||
| try { | ||
| peerInfo = this.peerBook.getByMultihash(peerId.toBytes()) | ||
| } catch (err) { | ||
| return done(err) | ||
| } | ||
|
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| const conn = this.libp2p.swarm.dial(peerInfo, '/ipfs/bitswap/1.0.0', (err) => { | ||
| if (err) { | ||
| return done(err) | ||
| } | ||
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| conn.write(msg.toProto()) | ||
| conn.once('error', (err) => done(err)) | ||
| conn.once('end', done) | ||
| conn.end() | ||
| }) | ||
| } | ||
| } |
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