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