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