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Make sure that the target user is able to join a local channel

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Implement ERR_USERNOTONSERV(504) numeric and make sure that the
target user is on the same server when inviting other users to
local ("&") channels.

ircd-ratbox uses the ERR_USERNOTONSERV(504) numeric for this, and I
think this is a good idea -- other IRC daemons (like ircu) silently
drop such impossible invites, but thats not a big benefit ...

Idea by Cahata, thanks! Closes #183.
This commit is contained in:
Alexander Barton 2015-04-12 20:59:43 +02:00
parent 4330f5d1c9
commit c5da483685
2 changed files with 9 additions and 0 deletions
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8
src/ngircd/irc-op.c
View File

@ -150,6 +150,14 @@ IRC_INVITE(CLIENT *Client, REQUEST *Req)
return IRC_WriteErrClient(from, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->argv[0]);
if (Req->argv[1][0] == '&') {
/* Local channel. Make sure the target user is on this server! */
if (Client_Conn(target) == NONE)
return IRC_WriteErrClient(from, ERR_USERNOTONSERV_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? */

1
src/ngircd/messages.h
View File

@ -156,6 +156,7 @@
#define ERR_UMODEUNKNOWNFLAG_MSG "501 %s :Unknown mode"
#define ERR_UMODEUNKNOWNFLAG2_MSG "501 %s :Unknown mode \"%c%c\""
#define ERR_USERSDONTMATCH_MSG "502 %s :Can't set/get mode for other users"
#define ERR_USERNOTONSERV_MSG "504 %s %s :User is not on this server"
#define ERR_NOINVITE_MSG "518 %s :Cannot invite to %s (+V)"
#ifdef ZLIB