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