server/irc/server.js

   1 var util    = require('util'),
   2     EventBinder  = require('./eventbinder.js'),
   3     _ = require('lodash');
   4
   5 var IrcServer = function (irc_connection) {
   6     this.irc_connection = irc_connection;
   7
   8     this.list_buffer = [];
   9     this.motd_buffer = '';
  10
  11     this.irc_events = {
  12         connect:                onConnect,
  13         options:                onOptions,
  14         list_start:             onListStart,
  15         list_channel:           onListChannel,
  16         list_end:               onListEnd,
  17         motd_start:             onMotdStart,
  18         motd:                   onMotd,
  19         motd_end:               onMotdEnd,
  20         error:                  onError,
  21         password_mismatch:      onPasswordMismatch,
  22         channel_redirect:       onChannelRedirect,
  23         no_such_nick:           onNoSuchNick,
  24         cannot_send_to_channel: onCannotSendToChan,
  25         too_many_channels:      onTooManyChannels,
  26         user_not_in_channel:    onUserNotInChannel,
  27         not_on_channel:         onNotOnChannel,
  28         channel_is_full:        onChannelIsFull,
  29         invite_only_channel:    onInviteOnlyChannel,
  30         banned_from_channel:    onBannedFromChannel,
  31         bad_channel_key:        onBadChannelKey,
  32         chanop_privs_needed:    onChanopPrivsNeeded,
  33         nickname_in_use:        onNicknameInUse
  34     };
  35     EventBinder.bindIrcEvents('server *', this.irc_events, this, this.irc_connection);
  36
  37 };
  38
  39
  40 module.exports = IrcServer;
  41
  42
  43 IrcServer.prototype.dispose = function (){
  44     EventBinder.unbindIrcEvents('server *', this.irc_events, this.irc_connection);
  45     this.irc_connection = undefined;
  46 };
  47
  48
  49
  50 function onConnect(event) {
  51     this.irc_connection.clientEvent('connect', {
  52         nick: event.nick
  53     });
  54 }
  55
  56 function onOptions(event) {
  57     this.irc_connection.clientEvent('options', {
  58         options: event.options,
  59         cap: event.cap
  60     });
  61 }
  62
  63 function onListStart(event) {
  64     this.irc_connection.clientEvent('list_start', {});
  65     this.list_buffer = [];
  66     this.busy_listing = true;
  67 }
  68
  69 function onListChannel(event) {
  70     var buf;
  71     if (!this.busy_listing) {
  72       onListStart.call(this);
  73     }
  74     this.list_buffer.push({
  75         channel: event.channel,
  76         num_users: event.num_users,
  77         topic: event.topic
  78     });
  79
  80     if (this.list_buffer.length > 200) {
  81         buf = _.sortBy(this.list_buffer, function (channel) {
  82             // sortBy sorts in ascending order, we want to sort by descending, hence using 0 - num_users.
  83             return 0 - channel.num_users;
  84         });
  85         this.irc_connection.clientEvent('list_channel', {
  86             chans: buf
  87         });
  88         this.list_buffer = [];
  89     }
  90 }
  91
  92 function onListEnd(event) {
  93     var buf;
  94
  95     buf = _.sortBy(this.list_buffer, function (channel) {
  96         // sortBy sorts in ascending order, we want to sort by descending, hence using 0 - num_users.
  97         return 0 - channel.num_users;
  98     });
  99     this.irc_connection.clientEvent('list_channel', {
 100         chans: buf
 101     });
 102     this.list_buffer = [];
 103     this.busy_listing = false;
 104
 105     this.irc_connection.clientEvent('list_end', {});
 106 }
 107
 108 function onMotdStart(event) {
 109     this.motd_buffer = '';
 110 }
 111
 112 function onMotd(event) {
 113     this.motd_buffer += event.motd;
 114 }
 115
 116 function onMotdEnd(event) {
 117     this.irc_connection.clientEvent('motd', {
 118         msg: this.motd_buffer
 119     });
 120 }
 121
 122 function onError(event) {
 123     this.irc_connection.clientEvent('irc_error', {
 124         error: 'error',
 125         reason: event.reason
 126     });
 127 }
 128
 129 function onPasswordMismatch(event) {
 130     this.irc_connection.clientEvent('irc_error', {
 131         error: 'password_mismatch'
 132     });
 133 }
 134
 135 function onChannelRedirect(event) {
 136     this.irc_connection.clientEvent('channel_redirect', {
 137         from: event.from,
 138         to: event.to
 139     });
 140 }
 141
 142 function onNoSuchNick(event) {
 143     this.irc_connection.clientEvent('irc_error', {
 144         error: 'no_such_nick',
 145         nick: event.nick,
 146         reason: event.reason
 147     });
 148 }
 149
 150 function onCannotSendToChan(event) {
 151     this.irc_connection.clientEvent('irc_error', {
 152         error: 'cannot_send_to_chan',
 153         channel: event.channel,
 154         reason: event.reason
 155     });
 156 }
 157
 158 function onTooManyChannels(event) {
 159     this.irc_connection.clientEvent('irc_error', {
 160         error: 'too_many_channels',
 161         channel: event.channel,
 162         reason: event.reason
 163     });
 164 }
 165
 166 function onUserNotInChannel(event) {
 167     this.irc_connection.clientEvent('irc_error', {
 168         error: 'user_not_in_channel',
 169         nick: event.nick,
 170         channel: event.channel,
 171         reason: event.reason
 172     });
 173 }
 174
 175 function onNotOnChannel(event) {
 176     this.irc_connection.clientEvent('irc_error', {
 177         error: 'not_on_channel',
 178         channel: event.channel,
 179         reason: event.reason
 180     });
 181 }
 182
 183 function onChannelIsFull(event) {
 184     this.irc_connection.clientEvent('irc_error', {
 185         error: 'channel_is_full',
 186         channel: event.channel,
 187         reason: event.reason
 188     });
 189 }
 190
 191 function onInviteOnlyChannel(event) {
 192     this.irc_connection.clientEvent('irc_error', {
 193         error: 'invite_only_channel',
 194         channel: event.channel,
 195         reason: event.reason
 196     });
 197 }
 198
 199 function onBannedFromChannel(event) {
 200     this.irc_connection.clientEvent('irc_error', {
 201         error: 'banned_from_channel',
 202         channel: event.channel,
 203         reason: event.reason
 204     });
 205 }
 206
 207 function onBadChannelKey(event) {
 208     this.irc_connection.clientEvent('irc_error', {
 209         error: 'bad_channel_key',
 210         channel: event.channel,
 211         reason: event.reason
 212     });
 213 }
 214
 215 function onChanopPrivsNeeded(event) {
 216     this.irc_connection.clientEvent('irc_error', {
 217         error: 'chanop_privs_needed',
 218         channel: event.channel,
 219         reason: event.reason
 220     });
 221 }
 222
 223 function onNicknameInUse(event) {
 224     this.irc_connection.clientEvent('irc_error', {
 225         error: 'nickname_in_use',
 226         nick: event.nick,
 227         reason: event.reason
 228     });
 229 }