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* from, const char *nick, const char *channel, 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(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(from, currentNick, currentChannel, reason))
  97                                 return false;
  98
  99                         while (*currentNick)
 100                                 currentNick++;
 101
 102                         currentNick++;
 103                         nickCount--;
 104                 }
 105         } else if (channelCount == nickCount) {
 106                 while (nickCount > 0) {
 107                         if (!try_kick(from, currentNick, currentChannel, reason))
 108                                 return false;
 109
 110                         while (*currentNick)
 111                                 currentNick++;
 112
 113                         while (*currentChannel)
 114                                 currentChannel++;
 115
 116                         currentNick++;
 117                         currentChannel++;
 118                         nickCount--;
 119                 }
 120         } else {
 121                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 122                                         Client_ID(Client), Req->command);
 123         }
 124         return true;
 125 } /* IRC_KICK */
 126
 127
 128 GLOBAL bool
 129 IRC_INVITE(CLIENT *Client, REQUEST *Req)
 130 {
 131         CHANNEL *chan;
 132         CLIENT *target, *from;
 133         const char *colon_if_necessary;
 134         bool remember = false;
 135
 136         assert( Client != NULL );
 137         assert( Req != NULL );
 138
 139         if (Req->argc != 2)
 140                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 141                                         Client_ID(Client), Req->command);
 142
 143         if (Client_Type(Client) == CLIENT_SERVER)
 144                 from = Client_Search(Req->prefix);
 145         else
 146                 from = Client;
 147         if (!from)
 148                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 149                                         Client_ID(Client), Req->prefix);
 150
 151         /* Search user */
 152         target = Client_Search(Req->argv[0]);
 153         if (!target || (Client_Type(target) != CLIENT_USER))
 154                 return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
 155                                 Client_ID(Client), Req->argv[0]);
 156
 157         chan = Channel_Search(Req->argv[1]);
 158         if (chan) {
 159                 /* Channel exists. Is the user a valid member of the channel? */
 160                 if (!Channel_IsMemberOf(chan, from))
 161                         return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
 162
 163                 /* Is the channel "invite-only"? */
 164                 if (strchr(Channel_Modes(chan), 'i')) {
 165                         /* Yes. The user must be channel operator! */
 166                         if (!strchr(Channel_UserModes(chan, from), 'o'))
 167                                 return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
 168                                                 Client_ID(from), Channel_Name(chan));
 169                         remember = true;
 170                 }
 171
 172                 /* Is the target user already member of the channel? */
 173                 if (Channel_IsMemberOf(chan, target))
 174                         return IRC_WriteStrClient(from, ERR_USERONCHANNEL_MSG,
 175                                         Client_ID(from), Req->argv[0], Req->argv[1]);
 176
 177                 /* If the target user is banned on that channel: remember invite */
 178                 if (Lists_Check(Channel_GetListBans(chan), target))
 179                         remember = true;
 180
 181                 if (remember) {
 182                         /* We must remember this invite */
 183                         if (!Channel_AddInvite(chan, Client_Mask(target), true))
 184                                 return CONNECTED;
 185                 }
 186         }
 187
 188         LogDebug("User \"%s\" invites \"%s\" to \"%s\" ...", Client_Mask(from), Req->argv[0], Req->argv[1]);
 189
 190
 191         /*
 192          * RFC 2812 says:
 193          * 'There is no requirement that the channel [..] must exist or be a valid channel'
 194          * The problem with this is that this allows the "channel" to contain spaces,
 195          * in which case we must prefix its name with a colon to make it clear that
 196          * it is only a single argument.
 197          */
 198         colon_if_necessary = strchr(Req->argv[1], ' ') ? ":":"";
 199         /* Inform target client */
 200         IRC_WriteStrClientPrefix(target, from, "INVITE %s %s%s", Req->argv[0],
 201                                         colon_if_necessary, Req->argv[1]);
 202
 203         if (Client_Conn(target) > NONE) {
 204                 /* The target user is local, so we have to send the status code */
 205                 if (!IRC_WriteStrClientPrefix(from, target, RPL_INVITING_MSG,
 206                         Client_ID(from), Req->argv[0], colon_if_necessary, Req->argv[1]))
 207                         return DISCONNECTED;
 208
 209                 if (strchr(Client_Modes(target), 'a') &&
 210                         !IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from),
 211                                         Client_ID(target), Client_Away(target)))
 212                                 return DISCONNECTED;
 213         }
 214         return CONNECTED;
 215 } /* IRC_INVITE */
 216
 217
 218 /* -eof- */