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