pissircd/src/modules/server-time.c

100 lines
2.5 KiB
C

/*
* IRC - Internet Relay Chat, src/modules/server-time.c
* (C) 2019 Syzop & The UnrealIRCd Team
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "unrealircd.h"
ModuleHeader MOD_HEADER
= {
"server-time",
"5.0",
"server-time CAP",
"UnrealIRCd Team",
"unrealircd-6",
};
/* Variables */
long CAP_SERVER_TIME = 0L;
int server_time_mtag_is_ok(Client *client, const char *name, const char *value);
void mtag_add_or_inherit_time(Client *sender, MessageTag *recv_mtags, MessageTag **mtag_list, const char *signature);
MOD_INIT()
{
ClientCapabilityInfo cap;
ClientCapability *c;
MessageTagHandlerInfo mtag;
MARK_AS_OFFICIAL_MODULE(modinfo);
memset(&cap, 0, sizeof(cap));
cap.name = "server-time";
c = ClientCapabilityAdd(modinfo->handle, &cap, &CAP_SERVER_TIME);
memset(&mtag, 0, sizeof(mtag));
mtag.name = "time";
mtag.is_ok = server_time_mtag_is_ok;
mtag.clicap_handler = c;
MessageTagHandlerAdd(modinfo->handle, &mtag);
HookAddVoid(modinfo->handle, HOOKTYPE_NEW_MESSAGE, 0, mtag_add_or_inherit_time);
return MOD_SUCCESS;
}
MOD_LOAD()
{
return MOD_SUCCESS;
}
MOD_UNLOAD()
{
return MOD_SUCCESS;
}
/** This function verifies if the client sending
* 'server-time' is permitted to do so and uses a permitted
* syntax.
* We simply allow server-time ONLY from servers.
*/
int server_time_mtag_is_ok(Client *client, const char *name, const char *value)
{
if (IsServer(client) && !BadPtr(value))
return 1;
return 0;
}
void mtag_add_or_inherit_time(Client *sender, MessageTag *recv_mtags, MessageTag **mtag_list, const char *signature)
{
MessageTag *m = find_mtag(recv_mtags, "time");
if (m)
{
m = duplicate_mtag(m);
} else
{
m = safe_alloc(sizeof(MessageTag));
safe_strdup(m->name, "time");
safe_strdup(m->value, timestamp_iso8601_now());
}
AddListItem(m, *mtag_list);
}