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Enable SQUIT command for IRC Operators

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This patch enables IRC Operators to use the SQUIT command as specified in
RFC 2812, section 3.1.8 "Squit".

When forwarding SQUIT commands, the server connected to the target will
drop the connection (not the target server itself!).

Please note:

 - the configuration option "AllowRemoteOper" mus be enabled on the
   server disconnecting the target to allow forwarding of SQUIT commands.
 - if the remote server is configured to establish the connection, it
   will just do this; so the disconnect is not permanent in this case!
This commit is contained in:
Alexander Barton 2009-05-19 22:41:45 +02:00
parent 03b70229eb
commit 294320ed62
2 changed files with 60 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
src/ngircd/irc-server.c
View File

@ -37,6 +37,7 @@
#include "numeric.h"
#include "ngircd.h"
#include "irc-info.h"
#include "op.h"
#include "exp.h"
#include "irc-server.h"
@ -273,21 +274,40 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req )
GLOBAL bool
IRC_SQUIT(CLIENT * Client, REQUEST * Req)
{
CLIENT *target;
char msg[LINE_LEN + 64];
char msg[COMMAND_LEN], logmsg[COMMAND_LEN];
CLIENT *from, *target;
CONN_ID con;
assert(Client != NULL);
assert(Req != NULL);
if (Client_Type(Client) != CLIENT_SERVER
&& !Client_HasMode(Client, 'o'))
return Op_NoPrivileges(Client, Req);
/* Bad number of arguments? */
if (Req->argc != 2)
return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
Client_ID(Client), Req->command);
if (Client_Type(Client) == CLIENT_SERVER && Req->prefix) {
from = Client_Search(Req->prefix);
if (Client_Type(from) != CLIENT_SERVER
&& !Op_Check(Client, Req))
return Op_NoPrivileges(Client, Req);
} else
from = Client;
if (!from)
return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->prefix);
Log(LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...",
Client_ID(Client), Req->argv[0], Req->argv[1]);
Client_ID(from), Req->argv[0], Req->argv[1]);
target = Client_Search(Req->argv[0]);
if (Client_Type(Client) != CLIENT_SERVER &&
target == Client_ThisServer())
return Op_NoPrivileges(Client, Req);
if (!target) {
/* The server is (already) unknown */
Log(LOG_WARNING,
@ -296,27 +316,46 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req)
return CONNECTED;
}
if (Req->argv[1][0]) {
if (strlen(Req->argv[1]) > LINE_LEN)
Req->argv[1][LINE_LEN] = '\0';
snprintf(msg, sizeof(msg), "%s (SQUIT from %s).", Req->argv[1],
Client_ID(Client));
} else
snprintf(msg, sizeof(msg), "Got SQUIT from %s.",
Client_ID(Client));
con = Client_Conn(target);
if (Client_Conn(target) > NONE) {
/* We are directly connected to this server */
if (Req->argv[1][0])
Conn_Close(Client_Conn(target), msg, Req->argv[1],
true);
if (Client_NextHop(from) != Client || con > NONE)
snprintf(msg, sizeof(msg), "%s (SQUIT from %s)",
Req->argv[1], Client_ID(from));
else
Conn_Close(Client_Conn(target), msg, NULL, true);
strlcpy(msg, Req->argv[1], sizeof(msg));
else
snprintf(msg, sizeof(msg), "Got SQUIT from %s",
Client_ID(from));
if (con > NONE) {
/* We are directly connected to the target server, so we
* have to tear down the connection and to inform all the
* other remaining servers in the network */
Conn_Close(con, NULL, msg, true);
if (con == Client_Conn(Client))
return DISCONNECTED;
} else {
Client_Destroy(target, msg, Req->argv[1], false);
return CONNECTED;
/* This server is not directly connected, so the SQUIT must
* be forwarded ... */
if (Client_Type(from) != CLIENT_SERVER) {
/* The origin is not an IRC server, so don't evaluate
* this SQUIT but simply forward it */
IRC_WriteStrClientPrefix(Client_NextHop(target),
from, "SQUIT %s :%s", Req->argv[0], Req->argv[1]);
} else {
/* SQUIT has been generated by another server, so
* remove the target server from the network! */
logmsg[0] = '\0';
if (!strchr(msg, '('))
snprintf(logmsg, sizeof(logmsg),
"%s (SQUIT from %s)", Req->argv[1],
Client_ID(from));
Client_Destroy(target, logmsg[0] ? logmsg : msg,
msg, false);
}
}
return CONNECTED;
} /* IRC_SQUIT */
/* -eof- */

2
src/ngircd/parse.c
View File

@ -92,7 +92,7 @@ static COMMAND My_Commands[] =
{ "SERVICE", IRC_SERVICE, 0xFFFF, 0, 0, 0 },
{ "SERVLIST", IRC_SERVLIST, CLIENT_USER, 0, 0, 0 },
{ "SQUERY", IRC_SQUERY, CLIENT_USER|CLIENT_SERVER, 0, 0, 0 },
{ "SQUIT", IRC_SQUIT, CLIENT_SERVER, 0, 0, 0 },
{ "SQUIT", IRC_SQUIT, CLIENT_USER|CLIENT_SERVER, 0, 0, 0 },
{ "STATS", IRC_STATS, CLIENT_USER|CLIENT_SERVER, 0, 0, 0 },
{ "SUMMON", IRC_SUMMON, CLIENT_USER|CLIENT_SERVER, 0, 0, 0 },
{ "TIME", IRC_TIME, CLIENT_USER|CLIENT_SERVER, 0, 0, 0 },