src/ngircd/irc-op.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  * Please read the file COPYING, README and AUTHORS for more information.
  10  */
  11
  12 #include "portab.h"
  13
  14 /**
  15  * @file
  16  * Channel operator commands
  17  */
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <string.h>
  22 #include <stdio.h>
  23
  24 #include "defines.h"
  25 #include "conn.h"
  26 #include "channel.h"
  27 #include "irc-write.h"
  28 #include "lists.h"
  29 #include "log.h"
  30 #include "messages.h"
  31 #include "parse.h"
  32
  33 #include "exp.h"
  34 #include "irc-op.h"
  35
  36
  37 static bool
  38 try_kick(CLIENT *peer, CLIENT* from, const char *nick, const char *channel,
  39          const char *reason)
  40 {
  41         CLIENT *target = Client_Search(nick);
  42
  43         if (!target)
  44                 return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG, Client_ID(from), nick);
  45
  46         Channel_Kick(peer, target, from, channel, reason);
  47         return true;
  48 }
  49
  50
  51 GLOBAL bool
  52 IRC_KICK(CLIENT *Client, REQUEST *Req)
  53 {
  54         CLIENT *from;
  55         char *itemList = Req->argv[0];
  56         const char* currentNick, *currentChannel, *reason;
  57         unsigned int channelCount = 1;
  58         unsigned int nickCount = 1;
  59
  60         assert( Client != NULL );
  61         assert( Req != NULL );
  62
  63         if ((Req->argc < 2) || (Req->argc > 3))
  64                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
  65                                         Client_ID(Client), Req->command);
  66
  67         while (*itemList) {
  68                 if (*itemList == ',') {
  69                         *itemList = '\0';
  70                         channelCount++;
  71                 }
  72                 itemList++;
  73         }
  74
  75         itemList = Req->argv[1];
  76         while (*itemList) {
  77                 if (*itemList == ',') {
  78                         *itemList = '\0';
  79                         nickCount++;
  80                 }
  81                 itemList++;
  82         }
  83
  84         if (Client_Type(Client) == CLIENT_SERVER)
  85                 from = Client_Search(Req->prefix);
  86         else
  87                 from = Client;
  88
  89         if (!from)
  90                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
  91                                         Client_ID(Client), Req->prefix);
  92
  93         reason = Req->argc == 3 ? Req->argv[2] : Client_ID(from);
  94         currentNick = Req->argv[1];
  95         currentChannel = Req->argv[0];
  96         if (channelCount == 1) {
  97                 while (nickCount > 0) {
  98                         if (!try_kick(Client, from, currentNick,
  99                                       currentChannel, reason))
 100                                 return false;
 101
 102                         while (*currentNick)
 103                                 currentNick++;
 104
 105                         currentNick++;
 106                         nickCount--;
 107                 }
 108         } else if (channelCount == nickCount) {
 109                 while (nickCount > 0) {
 110                         if (!try_kick(Client, from, currentNick,
 111                                       currentChannel, reason))
 112                                 return false;
 113
 114                         while (*currentNick)
 115                                 currentNick++;
 116
 117                         while (*currentChannel)
 118                                 currentChannel++;
 119
 120                         currentNick++;
 121                         currentChannel++;
 122                         nickCount--;
 123                 }
 124         } else {
 125                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 126                                         Client_ID(Client), Req->command);
 127         }
 128         return true;
 129 } /* IRC_KICK */
 130
 131
 132 GLOBAL bool
 133 IRC_INVITE(CLIENT *Client, REQUEST *Req)
 134 {
 135         CHANNEL *chan;
 136         CLIENT *target, *from;
 137         const char *colon_if_necessary;
 138         bool remember = false;
 139
 140         assert( Client != NULL );
 141         assert( Req != NULL );
 142
 143         if (Req->argc != 2)
 144                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 145                                         Client_ID(Client), Req->command);
 146
 147         if (Client_Type(Client) == CLIENT_SERVER)
 148                 from = Client_Search(Req->prefix);
 149         else
 150                 from = Client;
 151         if (!from)
 152                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 153                                         Client_ID(Client), Req->prefix);
 154
 155         /* Search user */
 156         target = Client_Search(Req->argv[0]);
 157         if (!target || (Client_Type(target) != CLIENT_USER))
 158                 return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
 159                                 Client_ID(Client), Req->argv[0]);
 160
 161         chan = Channel_Search(Req->argv[1]);
 162         if (chan) {
 163                 /* Channel exists. Is the user a valid member of the channel? */
 164                 if (!Channel_IsMemberOf(chan, from))
 165                         return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
 166
 167                 /* Is the channel "invite-only"? */
 168                 if (strchr(Channel_Modes(chan), 'i')) {
 169                         /* Yes. The user must be channel owner/admin/operator/halfop! */
 170                         if (!strchr(Channel_UserModes(chan, from), 'q') &&
 171                             !strchr(Channel_UserModes(chan, from), 'a') &&
 172                             !strchr(Channel_UserModes(chan, from), 'o') &&
 173                             !strchr(Channel_UserModes(chan, from), 'h'))
 174                                 return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
 175                                                 Client_ID(from), Channel_Name(chan));
 176                         remember = true;
 177                 }
 178
 179                 /* Is the target user already member of the channel? */
 180                 if (Channel_IsMemberOf(chan, target))
 181                         return IRC_WriteStrClient(from, ERR_USERONCHANNEL_MSG,
 182                                         Client_ID(from), Req->argv[0], Req->argv[1]);
 183
 184                 /* If the target user is banned on that channel: remember invite */
 185                 if (Lists_Check(Channel_GetListBans(chan), target))
 186                         remember = true;
 187
 188                 if (remember) {
 189                         /* We must remember this invite */
 190                         if (!Channel_AddInvite(chan, Client_Mask(target), true))
 191                                 return CONNECTED;
 192                 }
 193         }
 194
 195         LogDebug("User \"%s\" invites \"%s\" to \"%s\" ...", Client_Mask(from), Req->argv[0], Req->argv[1]);
 196
 197
 198         /*
 199          * RFC 2812 says:
 200          * 'There is no requirement that the channel [..] must exist or be a valid channel'
 201          * The problem with this is that this allows the "channel" to contain spaces,
 202          * in which case we must prefix its name with a colon to make it clear that
 203          * it is only a single argument.
 204          */
 205         colon_if_necessary = strchr(Req->argv[1], ' ') ? ":":"";
 206         /* Inform target client */
 207         IRC_WriteStrClientPrefix(target, from, "INVITE %s %s%s", Req->argv[0],
 208                                         colon_if_necessary, Req->argv[1]);
 209
 210         if (Client_Conn(target) > NONE) {
 211                 /* The target user is local, so we have to send the status code */
 212                 if (!IRC_WriteStrClientPrefix(from, target, RPL_INVITING_MSG,
 213                         Client_ID(from), Req->argv[0], colon_if_necessary, Req->argv[1]))
 214                         return DISCONNECTED;
 215
 216                 if (strchr(Client_Modes(target), 'a') &&
 217                         !IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from),
 218                                         Client_ID(target), Client_Away(target)))
 219                                 return DISCONNECTED;
 220         }
 221         return CONNECTED;
 222 } /* IRC_INVITE */
 223
 224
 225 /* -eof- */