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Limit url-grabbing to NOTICE, PRIVMSG, TOPIC, 332 (RPL_TOPIC), 372 (RPL_MOTD)

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This commit is contained in:
Richard Hitt 2012-11-13 12:06:35 -08:00
parent c896176925
commit b59f9abd1a
2 changed files with 45 additions and 1 deletions
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2
src/common/server.c
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@ -157,6 +157,8 @@ server_send_real (server *serv, char *buf, int len)
{
fe_add_rawlog (serv, buf, len, TRUE);
url_check_line (buf, len);
return tcp_send_real (serv->ssl, serv->sok, serv->encoding, serv->using_irc,
buf, len);
}

44
src/common/url.c
View File

@ -331,12 +331,53 @@ url_check_word (const char *word, int len)
return 0;
}
/* List of IRC commands for which contents (and thus possible URLs)
* are visible to the user. NOTE: Trailing blank required in each. */
static char *commands[] = {
"NOTICE ",
"PRIVMSG ",
"TOPIC ",
"332 ", /* RPL_TOPIC */
"372 " /* RPL_MOTD */
};
#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
void
url_check_line (char *buf, int len)
{
char *po = buf;
char *start;
int wlen;
int i, wlen;
/* Skip over message prefix */
if (*po == ':')
{
po = strchr (po, ' ');
if (!po)
return;
po++;
}
/* Allow only commands from the above list */
for (i = 0; i < ARRAY_SIZE (commands); i++)
{
char *cmd = commands[i];
int len = strlen (cmd);
if (strncmp (cmd, po, len) == 0)
{
po += len;
break;
}
}
if (i == ARRAY_SIZE (commands))
return;
/* Skip past the channel name or user nick */
po = strchr (po, ' ');
if (!po)
return;
po++;
if (buf[0] == ':' && buf[1] != 0)
po++;
@ -350,6 +391,7 @@ url_check_line (char *buf, int len)
{
case 0:
case ' ':
case '\r':
wlen = po - start;
if (wlen > 2)