server/irc/server.js

   1 var util    = require('util'),
   2     Binder  = require('./binder.js');
   3
   4 var IrcServer = function (irc_connection, host, port) {
   5     this.irc_connection = irc_connection;
   6     this.host = host;
   7     this.port = port;
   8
   9     this.scope = 'server:' + host;
  10
  11     Binder.call(this);
  12
  13     this.list_buffer = [];
  14     this.motd_buffer = '';
  15 };
  16
  17 util.inherits(IrcServer, Binder);
  18
  19 module.exports = IrcServer;
  20
  21 IrcServer.prototype.irc_events = {
  22     connect:                onConnect,
  23     options:                onOptions,
  24     list_start:             onListStart,
  25     list_channel:           onListChannel,
  26     list_end:               onListEnd,
  27     motd_start:             onMotdStart,
  28     motd:                   onMotd,
  29     motd_end:               onMotdEnd,
  30     error:                  onError,
  31     channel_redirect:       onChannelRedirect,
  32     no_such_nick:           onNoSuchNick,
  33     cannot_send_to_channel: onChannotSendToChan,
  34     too_many_channels:      onTooManyChannels,
  35     user_not_in_channel:    onUserNotInChannel,
  36     not_on_channel:         onNotOnChannel,
  37     channel_is_full:        onChannelisFull,
  38     invite_only_channel:    onInviteOnlyChannel,
  39     banned_from_channel:    onBannedFromChannel,
  40     bad_channel_key:        onBadChannelKey,
  41     chanop_privs_needed:    onChanopPrivsNeeded,
  42     nickname_in_use:        onNicknameInUse
  43 };
  44
  45 function onConnect(event) {
  46     this.irc_connection.clientEvent('connect', {
  47         nick: event.nick
  48     });
  49 };
  50
  51 function onOptions(event) {
  52     this.irc_connection.clientEvent('options', {
  53         options: event.options,
  54         cap: event.cap
  55     });
  56 };
  57
  58 function onListStart(event) {
  59     this.irc_connection.clientEvent('list_start', {});
  60 };
  61
  62 function onListChannel(event) {
  63     var buf;
  64     this.list_buffer.push({
  65         channel: event.channel,
  66         num_users: event.num_users,
  67         topic: event.topic
  68     });
  69
  70     if (this.list_buffer.length > 200) {
  71         buf = _.sortBy(this.list_buffer, function (channel) {
  72             // sortBy sorts in ascending order, we want to sort by descending, hence using 0 - num_users.
  73             return 0 - channel.num_users;
  74         });
  75         this.irc_connection.clientEvent('list_channel', {
  76             chans: buf
  77         });
  78         this.list_buffer = [];
  79     };
  80 };
  81
  82 function onListEnd(event) {
  83     if (this.list_buffer.length > 200) {
  84         buf = _.sortBy(this.list_buffer, function (channel) {
  85             // sortBy sorts in ascending order, we want to sort by descending, hence using 0 - num_users.
  86             return 0 - channel.num_users;
  87         });
  88         this.irc_connection.clientEvent('list_channel', {
  89             chans: buf
  90         });
  91         this.list_buffer = [];
  92     };
  93
  94     this.irc_connection.clientEvent('list_end', {});
  95 };
  96
  97 function onMotdStart(event) {
  98     this.motd_buffer = '';
  99 };
 100
 101 function onMotd(event) {
 102     this.motd_buffer += event.motd;
 103 };
 104
 105 function onMotdEnd(event) {
 106     this.irc_connection.clientEvent('motd', {
 107         msg: this.motd_buffer
 108     });
 109 };
 110
 111 function onError(event) {
 112     this.irc_connection.clientEvent('irc_error', {
 113         error: 'error',
 114         reason: event.reason
 115     });
 116 };
 117
 118 function onChannelRedirect(event) {
 119     this.irc_connection.clientEvent('channel_redirect', {
 120         from: event.from,
 121         to: event.to
 122     });
 123 };
 124
 125 function onNoSuchNick(event) {
 126     this.irc_connection.clientEvent('irc_error', {
 127         error: 'no_such_nick',
 128         nick: event.nick,
 129         reason: event.reason
 130     });
 131 };
 132
 133 function onCannotSendToChan(event) {
 134     this.irc_connection.clientEvent('irc_error', {
 135         error: 'cannot_send_to_chan',
 136         channel: event.channel,
 137         reason: event.reason
 138     });
 139 };
 140
 141 function onTooManyChannels(event) {
 142     this.irc_connection.clientEvent('irc_error', {
 143         error: 'too_many_channels',
 144         channel: event.channel,
 145         reason: event.reason
 146     });
 147 };
 148
 149 function onUserNotInChannel(event) {
 150     this.irc_connection.clientEvent('irc_error', {
 151         error: 'user_not_in_channel',
 152         nick: event.nick,
 153         channel: event.channel,
 154         reason: event.reason
 155     });
 156 };
 157
 158 function onNotOnChannel(event) {
 159     this.irc_connection.clientEvent('irc_error', {
 160         error: 'not_on_channel',
 161         channel: event.channel,
 162         reason: event.reason
 163     });
 164 };
 165
 166 function onChannelIsFull(event) {
 167     this.irc_connection.clientEvent('irc_error', {
 168         error: 'channel_is_full',
 169         channel: event.channel,
 170         reason: event.reason
 171     });
 172 };
 173
 174 function onInviteOnlyChannel(event) {
 175     this.irc_connection.clientEvent('irc_error', {
 176         error: 'invite_only_channel',
 177         channel: event.channel,
 178         reason: event.reason
 179     });
 180 };
 181
 182 function onBannedFromChannel(event) {
 183     this.irc_connection.clientEvent('irc_error', {
 184         error: 'banned_from_channel',
 185         channel: event.channel,
 186         reason: event.reason
 187     });
 188 };
 189
 190 function onBadChannelKey(event) {
 191     this.irc_connection.clientEvent('irc_error', {
 192         error: 'bad_channel_key',
 193         channel: event.channel,
 194         reason: event.reason
 195     });
 196 };
 197
 198 function onChanopPrivsNeeded(event) {
 199     this.irc_connection.clientEvent('irc_error', {
 200         error: 'chanop_privs_needed',
 201         channel: event.channel,
 202         reason: event.reason
 203     });
 204 };
 205
 206 function onNicknameInUse(event) {
 207     this.irc_connection.clientEvent('irc_error', {
 208         error: 'nickname_in_use',
 209         nick: event.nick,
 210         reason: event.reason
 211     });
 212 };