| 1 | var util = require('util'), |
| 2 | events = require('events'), |
| 3 | crypto = require('crypto'), |
| 4 | _ = require('lodash'), |
| 5 | State = require('./irc/state.js'), |
| 6 | IrcConnection = require('./irc/connection.js').IrcConnection, |
| 7 | ClientCommands = require('./clientcommands.js'), |
| 8 | WebsocketRpc = require('./websocketrpc.js'); |
| 9 | |
| 10 | |
| 11 | var Client = function (websocket) { |
| 12 | var that = this; |
| 13 | |
| 14 | events.EventEmitter.call(this); |
| 15 | this.websocket = websocket; |
| 16 | this.rpc = new WebsocketRpc(this.websocket); |
| 17 | |
| 18 | // Clients address |
| 19 | this.real_address = this.websocket.meta.real_address; |
| 20 | |
| 21 | // A hash to identify this client instance |
| 22 | this.hash = crypto.createHash('sha256') |
| 23 | .update(this.real_address) |
| 24 | .update('' + Date.now()) |
| 25 | .update(Math.floor(Math.random() * 100000).toString()) |
| 26 | .digest('hex'); |
| 27 | |
| 28 | this.state = new State(this); |
| 29 | |
| 30 | this.buffer = { |
| 31 | list: [], |
| 32 | motd: '' |
| 33 | }; |
| 34 | |
| 35 | // Handler for any commands sent from the client |
| 36 | this.client_commands = new ClientCommands(this); |
| 37 | |
| 38 | this.rpc.on('irc', function (response, data) { |
| 39 | handleClientMessage.call(that, data, response); |
| 40 | }); |
| 41 | this.rpc.on('kiwi', function (response, data) { |
| 42 | kiwiCommand.call(that, data, response); |
| 43 | }); |
| 44 | websocket.on('close', function () { |
| 45 | websocketDisconnect.apply(that, arguments); |
| 46 | }); |
| 47 | websocket.on('error', function () { |
| 48 | websocketError.apply(that, arguments); |
| 49 | }); |
| 50 | |
| 51 | this.disposed = false; |
| 52 | }; |
| 53 | util.inherits(Client, events.EventEmitter); |
| 54 | |
| 55 | module.exports.Client = Client; |
| 56 | |
| 57 | // Callback API: |
| 58 | // Callbacks SHALL accept 2 arguments, error and response, in that order. |
| 59 | // error MUST be null where the command is successul. |
| 60 | // error MUST otherwise be a truthy value and SHOULD be a string where the cause of the error is known. |
| 61 | // response MAY be given even if error is truthy |
| 62 | |
| 63 | Client.prototype.sendIrcCommand = function (command, data, callback) { |
| 64 | var c = {command: command, data: data}; |
| 65 | this.rpc.call('irc', c, callback); |
| 66 | }; |
| 67 | |
| 68 | Client.prototype.sendKiwiCommand = function (command, data, callback) { |
| 69 | var c = {command: command, data: data}; |
| 70 | this.rpc.call('kiwi', c, callback); |
| 71 | }; |
| 72 | |
| 73 | Client.prototype.dispose = function () { |
| 74 | this.disposed = true; |
| 75 | this.rpc.dispose(); |
| 76 | this.emit('dispose'); |
| 77 | this.removeAllListeners(); |
| 78 | }; |
| 79 | |
| 80 | function handleClientMessage(msg, callback) { |
| 81 | var server; |
| 82 | |
| 83 | // Make sure we have a server number specified |
| 84 | if ((msg.server === null) || (typeof msg.server !== 'number')) { |
| 85 | return (typeof callback === 'function') ? callback('server not specified') : undefined; |
| 86 | } else if (!this.state.irc_connections[msg.server]) { |
| 87 | return (typeof callback === 'function') ? callback('not connected to server') : undefined; |
| 88 | } |
| 89 | |
| 90 | // The server this command is directed to |
| 91 | server = this.state.irc_connections[msg.server]; |
| 92 | |
| 93 | if (typeof callback !== 'function') { |
| 94 | callback = null; |
| 95 | } |
| 96 | |
| 97 | try { |
| 98 | msg.data = JSON.parse(msg.data); |
| 99 | } catch (e) { |
| 100 | kiwi.log('[handleClientMessage] JSON parsing error ' + msg.data); |
| 101 | return; |
| 102 | } |
| 103 | |
| 104 | // Run the client command |
| 105 | this.client_commands.run(msg.data.method, msg.data.args, server, callback); |
| 106 | } |
| 107 | |
| 108 | |
| 109 | |
| 110 | |
| 111 | function kiwiCommand(command, callback) { |
| 112 | if (typeof callback !== 'function') { |
| 113 | callback = function () {}; |
| 114 | } |
| 115 | |
| 116 | switch (command.command) { |
| 117 | case 'connect': |
| 118 | if (command.hostname && command.port && command.nick) { |
| 119 | var options = {}; |
| 120 | |
| 121 | // Get any optional parameters that may have been passed |
| 122 | if (command.encoding) |
| 123 | options.encoding = command.encoding; |
| 124 | |
| 125 | options.password = global.config.restrict_server_password || command.password; |
| 126 | |
| 127 | this.state.connect( |
| 128 | (global.config.restrict_server || command.hostname), |
| 129 | (global.config.restrict_server_port || command.port), |
| 130 | (typeof global.config.restrict_server_ssl !== 'undefined' ? |
| 131 | global.config.restrict_server_ssl : |
| 132 | command.ssl), |
| 133 | command.nick, |
| 134 | {hostname: this.websocket.meta.revdns, address: this.websocket.meta.real_address}, |
| 135 | options, |
| 136 | callback); |
| 137 | } else { |
| 138 | return callback('Hostname, port and nickname must be specified'); |
| 139 | } |
| 140 | break; |
| 141 | default: |
| 142 | callback(); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | |
| 147 | // Websocket has disconnected, so quit all the IRC connections |
| 148 | function websocketDisconnect() { |
| 149 | this.emit('disconnect'); |
| 150 | |
| 151 | this.dispose(); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | // TODO: Should this close all the websocket connections too? |
| 156 | function websocketError() { |
| 157 | this.dispose(); |
| 158 | } |