/**
* Add entries to channel invite, ban and exception lists.
*
* @param what Can be 'I' for invite, 'b' for ban, and 'e' for exception list.
* @param Prefix The originator of the command.
* @param Client The sender of the command.
* @param Channel The channel of which the list should be modified.
* @param Pattern The pattern to add to the list.
* @return CONNECTED or DISCONNECTED.
*/
static bool
Add_To_List(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
const char *Pattern)
{
char mask[MASK_LEN];
struct list_head *list = NULL;
long int current_count;
assert(Client != NULL);
assert(Channel != NULL);
assert(Pattern != NULL);
assert(what == 'I' || what == 'b' || what == 'e');
Lists_MakeMask(Pattern, mask, sizeof(mask));
current_count = Lists_Count(Channel_GetListInvites(Channel))
+ Lists_Count(Channel_GetListExcepts(Channel))
+ Lists_Count(Channel_GetListBans(Channel));
switch(what) {
case 'I':
list = Channel_GetListInvites(Channel);
break;
case 'b':
list = Channel_GetListBans(Channel);
break;
case 'e':
list = Channel_GetListExcepts(Channel);
break;
}
if (Lists_CheckDupeMask(list, mask))
return CONNECTED;
if (Client_Type(Client) == CLIENT_USER &&
current_count >= MAX_HNDL_CHANNEL_LISTS)
return IRC_WriteErrClient(Client, ERR_LISTFULL_MSG,
Client_ID(Client),
Channel_Name(Channel), mask,
MAX_HNDL_CHANNEL_LISTS);
switch (what) {
case 'I':
if (!Channel_AddInvite(Channel, mask, false, Client_ID(Client)))
return CONNECTED;
break;
case 'b':
if (!Channel_AddBan(Channel, mask, Client_ID(Client)))
return CONNECTED;
break;
case 'e':
if (!Channel_AddExcept(Channel, mask, Client_ID(Client)))
return CONNECTED;
break;
}
return Send_ListChange(true, what, Prefix, Client, Channel, mask);
}
/**
* Handler for the IRC command "INVITE".
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_INVITE(CLIENT *Client, REQUEST *Req)
{
CHANNEL *chan;
CLIENT *target, *from;
const char *colon_if_necessary;
bool remember = false;
assert( Client != NULL );
assert( Req != NULL );
_IRC_ARGC_EQ_OR_RETURN_(Client, Req, 2)
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
/* Search user */
target = Client_Search(Req->argv[0]);
if (!target || (Client_Type(target) != CLIENT_USER))
return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->argv[0]);
chan = Channel_Search(Req->argv[1]);
if (chan) {
/* Channel exists. Is the user a valid member of the channel? */
if (!Channel_IsMemberOf(chan, from))
return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
/* Is the channel "invite-disallow"? */
if (strchr(Channel_Modes(chan), 'V'))
return IRC_WriteStrClient(from, ERR_NOINVITE_MSG,
Client_ID(from), Channel_Name(chan));
/* Is the channel "invite-only"? */
if (strchr(Channel_Modes(chan), 'i')) {
/* Yes. The user must be channel owner/admin/operator/halfop! */
if (!strchr(Channel_UserModes(chan, from), 'q') &&
!strchr(Channel_UserModes(chan, from), 'a') &&
!strchr(Channel_UserModes(chan, from), 'o') &&
!strchr(Channel_UserModes(chan, from), 'h'))
return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from), Channel_Name(chan));
remember = true;
}
/* Is the target user already member of the channel? */
if (Channel_IsMemberOf(chan, target))
return IRC_WriteStrClient(from, ERR_USERONCHANNEL_MSG,
Client_ID(from), Req->argv[0], Req->argv[1]);
/* If the target user is banned on that channel: remember invite */
if (Lists_Check(Channel_GetListBans(chan), target))
remember = true;
if (remember) {
/* We must remember this invite */
if (!Channel_AddInvite(chan, Client_Mask(target), true))
return CONNECTED;
}
}
LogDebug("User \"%s\" invites \"%s\" to \"%s\" ...", Client_Mask(from),
Req->argv[0], Req->argv[1]);
/*
* RFC 2812 says:
* 'There is no requirement that the channel [..] must exist or be a valid channel'
* The problem with this is that this allows the "channel" to contain spaces,
* in which case we must prefix its name with a colon to make it clear that
* it is only a single argument.
*/
colon_if_necessary = strchr(Req->argv[1], ' ') ? ":":"";
/* Inform target client */
IRC_WriteStrClientPrefix(target, from, "INVITE %s %s%s", Req->argv[0],
colon_if_necessary, Req->argv[1]);
if (Client_Conn(target) > NONE) {
/* The target user is local, so we have to send the status code */
if (!IRC_WriteStrClientPrefix(from, target, RPL_INVITING_MSG,
Client_ID(from), Req->argv[0], colon_if_necessary, Req->argv[1]))
return DISCONNECTED;
if (strchr(Client_Modes(target), 'a') &&
!IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from),
Client_ID(target), Client_Away(target)))
return DISCONNECTED;
}
return CONNECTED;
} /* IRC_INVITE */
