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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,78 +1,121 @@ | ||
| 'use strict' | ||
|
|
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| const bs58 = require('bs58') | ||
| const PeerId = require('peer-id') | ||
| const PeerInfo = require('peer-info') | ||
|
|
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| function getB58Str (peer) { | ||
| let b58Str | ||
|
|
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| if (typeof peer === 'string') { | ||
| b58Str = peer | ||
| } else if (Buffer.isBuffer(peer)) { | ||
| b58Str = bs58.encode(peer).toString() | ||
| } else if (PeerId.isPeerId(peer)) { | ||
| b58Str = peer.toB58String() | ||
| } else if (PeerInfo.isPeerInfo(peer)) { | ||
| b58Str = peer.id.toB58String() | ||
| } else { | ||
| throw new Error('not valid PeerId or PeerInfo, or B58Str') | ||
| } | ||
|
|
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| return b58Str | ||
| } | ||
|
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| class PeerBook { | ||
| constructor () { | ||
| this._peers = {} | ||
| } | ||
|
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| // checks if peer exists | ||
| // peer can be PeerId, b58String or PeerInfo | ||
| has (peer) { | ||
| const b58Str = getB58Str(peer) | ||
| return Boolean(this._peers[b58Str]) | ||
| } | ||
|
|
||
| /** | ||
| * Stores a peerInfo, if already exist, only adds the multiaddrs | ||
| * Stores a peerInfo, if already exist, merges the new into the old. | ||
| * | ||
| * @param {PeerInfo} peerInfo | ||
| * @param {replace} boolean | ||
| * @returns {null} | ||
| * @returns {PeerInfo} | ||
| */ | ||
| put (peerInfo, replace) { | ||
| if (this._peers[peerInfo.id.toB58String()] && !replace) { | ||
| // peerInfo.replace merges by default if none to replace are passed | ||
| this._peers[peerInfo.id.toB58String()] | ||
| .multiaddrs.replace([], peerInfo.multiaddrs.toArray()) | ||
| const localPeerInfo = this._peers[peerInfo.id.toB58String()] | ||
|
|
||
| // insert if doesn't exist or replace if replace flag is true | ||
| if (!localPeerInfo || replace) { | ||
| this._peers[peerInfo.id.toB58String()] = peerInfo | ||
| return peerInfo | ||
| } | ||
|
|
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| this._peers[peerInfo.id.toB58String()] = peerInfo | ||
| } | ||
| // peerInfo.replace merges by default if none to replace are passed | ||
| peerInfo.multiaddrs.forEach((ma) => localPeerInfo.multiaddrs.add(ma)) | ||
|
|
||
| getAll () { | ||
| return this._peers | ||
| // pass active connection state | ||
| const ma = peerInfo.isConnected() | ||
| if (ma) { | ||
| localPeerInfo.connect(ma) | ||
| } | ||
|
|
||
| // pass known protocols | ||
| peerInfo.protocols.forEach((p) => localPeerInfo.protocols.add(p)) | ||
|
|
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| if (!localPeerInfo.id.privKey && peerInfo.id.privKey) { | ||
| localPeerInfo.id.privKey = peerInfo.id.privKey | ||
| } | ||
|
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| if (!localPeerInfo.id.pubKey && peerInfo.id.pubKey) { | ||
| localPeerInfo.id.pubKey = peerInfo.id.pubKey | ||
| } | ||
|
|
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| return localPeerInfo | ||
| } | ||
|
|
||
| /** | ||
| * Get the info to the given PeerId. | ||
| * Get the info to the given PeerId, PeerInfo or b58Str id | ||
| * | ||
| * @param {PeerId} id | ||
| * @returns {PeerInfo} | ||
| */ | ||
| get (id) { | ||
| return this.getByB58String(id.toB58String()) | ||
| } | ||
| get (peer) { | ||
| const b58Str = getB58Str(peer) | ||
|
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||
| getByB58String (b58String) { | ||
| const peerInfo = this._peers[b58String] | ||
| const peerInfo = this._peers[b58Str] | ||
|
|
||
| if (peerInfo) { | ||
| return peerInfo | ||
| } | ||
| throw new Error('PeerInfo not found') | ||
| } | ||
|
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||
| getByMultihash (multihash) { | ||
| const b58multihash = bs58.encode(multihash).toString() | ||
| return this.getByB58String(b58multihash) | ||
| } | ||
|
|
||
| removeByB58String (b58String) { | ||
| if (this._peers[b58String]) { | ||
| delete this._peers[b58String] | ||
| } | ||
| getAll () { | ||
| return this._peers | ||
| } | ||
|
|
||
| removeByMultihash (multihash) { | ||
| const b58multihash = bs58.encode(multihash).toString() | ||
| this.removeByB58String(b58multihash) | ||
| getAllArray () { | ||
| return Object.keys(this._peers).map((b58Str) => this._peers[b58Str]) | ||
| } | ||
|
|
||
| /** | ||
| * Return all multiaddrs for a given PeerId. | ||
| * | ||
| * @param {PeerId} id | ||
| * @param {PeerId, PeerInfo, Multihash, B58Str} id | ||
| * @returns {Array<Multiaddr>} | ||
| */ | ||
| getAddrs (id) { | ||
| const info = this.get(id) | ||
| getMultiaddrs (peer) { | ||
| const info = this.get(peer) | ||
| return info.multiaddrs | ||
| } | ||
|
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||
| remove (peer) { | ||
| const b58Str = getB58Str(peer) | ||
|
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| if (this._peers[b58Str]) { | ||
| delete this._peers[b58Str] | ||
| } | ||
| } | ||
| } | ||
|
|
||
| module.exports = PeerBook |
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