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Remove user@server messages to local users.

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These are unreliable in general and only useful
for violating certain restrictions.
Sending such messages to remote servers is still
possible, for securely messaging pseudoservers whether
service{}'ed or not. The special oper-only syntax
opers@server remains as well.
This commit is contained in:
Jilles Tjoelker 2008-07-27 22:17:46 +02:00
parent cd27d99ce4
commit ef57f7fb5e
1 changed files with 9 additions and 62 deletions
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71
modules/core/m_message.c
View file

@ -93,7 +93,6 @@ static int build_target_list(int p_or_n, const char *command,
static int flood_attack_client(int p_or_n, struct Client *source_p, struct Client *target_p); static int flood_attack_client(int p_or_n, struct Client *source_p, struct Client *target_p);
static int flood_attack_channel(int p_or_n, struct Client *source_p, static int flood_attack_channel(int p_or_n, struct Client *source_p,
struct Channel *chptr, char *chname); struct Channel *chptr, char *chname);
static struct Client *find_userhost(const char *, const char *, int *);
#define ENTITY_NONE 0 #define ENTITY_NONE 0
#define ENTITY_CHANNEL 1 #define ENTITY_CHANNEL 1
@ -893,7 +892,6 @@ handle_special(int p_or_n, const char *command, struct Client *client_p,
struct Client *source_p, const char *nick, const char *text) struct Client *source_p, const char *nick, const char *text)
{ {
struct Client *target_p; struct Client *target_p;
char *host;
char *server; char *server;
char *s; char *s;
int count; int count;
@ -931,39 +929,23 @@ handle_special(int p_or_n, const char *command, struct Client *client_p,
return; return;
} }
*server = '\0';
if((host = strchr(nick, '%')) != NULL)
*host++ = '\0';
/* Check if someones msg'ing opers@our.server */ /* Check if someones msg'ing opers@our.server */
if(strcmp(nick, "opers") == 0) if(strncmp(nick, "opers@", 6) == 0)
{ {
sendto_realops_snomask(SNO_GENERAL, L_ALL, "To opers: From: %s: %s", sendto_realops_snomask(SNO_GENERAL, L_ALL, "To opers: From: %s: %s",
source_p->name, text); source_p->name, text);
return; return;
} }
/* /* This was not very useful except for bypassing certain
* Look for users which match the destination host * restrictions. Note that we still allow sending to
* (no host == wildcard) and if one and one only is * remote servers this way, for messaging pseudoservers
* found connected to me, deliver message! * securely whether they have a service{} block or not.
* -- jilles
*/ */
target_p = find_userhost(nick, host, &count); sendto_one_numeric(source_p, ERR_NOSUCHNICK,
form_str(ERR_NOSUCHNICK), nick);
if(target_p != NULL) return;
{
if(server != NULL)
*server = '@';
if(host != NULL)
*--host = '%';
if(count == 1)
sendto_anywhere(target_p, source_p, command, ":%s", text);
else
sendto_one(source_p, form_str(ERR_TOOMANYTARGETS),
get_id(&me, source_p), get_id(source_p, source_p), nick);
}
} }
/* /*
@ -1014,38 +996,3 @@ handle_special(int p_or_n, const char *command, struct Client *client_p,
return; return;
} }
} }
/*
* find_userhost - find a user@host (server or user).
* inputs - user name to look for
* - host name to look for
* - pointer to count of number of matches found
* outputs - pointer to client if found
* - count is updated
* side effects - none
*
*/
static struct Client *
find_userhost(const char *user, const char *host, int *count)
{
struct Client *c2ptr;
struct Client *res = NULL;
char *u = LOCAL_COPY(user);
rb_dlink_node *ptr;
*count = 0;
if(collapse(u) != NULL)
{
RB_DLINK_FOREACH(ptr, global_client_list.head)
{
c2ptr = ptr->data;
if(!MyClient(c2ptr)) /* implies mine and an user */
continue;
if((!host || match(host, c2ptr->host)) && irccmp(u, c2ptr->username) == 0)
{
(*count)++;
res = c2ptr;
}
}
}
return (res);
}