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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Cherokee
*
* Authors:
* Alvaro Lopez Ortega <alvaro@alobbs.com>
*
* Copyright (C) 2001-2011 Alvaro Lopez Ortega
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "common-internal.h"
#include "rule_request.h"
#include "plugin_loader.h"
#include "server-protected.h"
#include "request-protected.h"
#include "util.h"
#include "pcre/pcre.h"
#define ENTRIES "rule,request"
PLUGIN_INFO_RULE_EASIEST_INIT(request);
static ret_t
match (cherokee_rule_request_t *rule,
cherokee_connection_t *conn,
cherokee_config_entry_t *ret_conf)
{
int re;
ret_t ret;
cherokee_regex_table_t *regexs = CONN_SRV(conn)->regexs;
UNUSED(ret_conf);
/* Sanity checks
*/
if (unlikely (regexs == NULL)) {
LOG_ERROR_S (CHEROKEE_ERROR_RULE_REQUEST_NO_TABLE);
return ret_error;
}
if (unlikely (rule->pcre == NULL)) {
LOG_ERROR_S (CHEROKEE_ERROR_RULE_REQUEST_NO_PCRE_PTR);
return ret_error;
}
/* Build the request string
*/
if (! cherokee_buffer_is_empty (&conn->query_string)) {
cherokee_buffer_add_str (&conn->request, "?");
cherokee_buffer_add_buffer (&conn->request, &conn->query_string);
}
/* Evaluate the pcre
*/
re = pcre_exec (rule->pcre, NULL,
conn->request.buf,
conn->request.len,
0, 0,
conn->regex_ovector, OVECTOR_LEN);
if (re < 0) {
TRACE (ENTRIES, "Request \"%s\" didn't match with \"%s\"\n",
conn->request.buf, rule->pattern.buf);
ret = ret_not_found;
goto restore;
}
conn->regex_ovecsize = re;
TRACE (ENTRIES, "Request \"%s\" matches with \"%s\", ovecsize=%d\n",
conn->request.buf, rule->pattern.buf, conn->regex_ovecsize);
ret = ret_ok;
restore:
if (! cherokee_buffer_is_empty (&conn->query_string)) {
cherokee_buffer_drop_ending (&conn->request, conn->query_string.len + 1);
}
return ret;
}
static ret_t
configure (cherokee_rule_request_t *rule,
cherokee_config_node_t *conf,
cherokee_virtual_server_t *vsrv)
{
ret_t ret;
cherokee_regex_table_t *regexs = VSERVER_SRV(vsrv)->regexs;
/* Read the configuration entry
*/
ret = cherokee_config_node_copy (conf, "request", &rule->pattern);
if (ret != ret_ok) {
LOG_CRITICAL (CHEROKEE_ERROR_RULE_NO_PROPERTY,
RULE(rule)->priority, "request");
return ret_error;
}
/* Add it to the regular extension table
*/
ret = cherokee_regex_table_add (regexs, rule->pattern.buf);
if (ret != ret_ok)
return ret;
ret = cherokee_regex_table_get (regexs, rule->pattern.buf, &rule->pcre);
if (ret != ret_ok)
return ret;
return ret_ok;
}
static ret_t
_free (void *p)
{
cherokee_rule_request_t *rule = RULE_REQUEST(p);
cherokee_buffer_mrproper (&rule->pattern);
return ret_ok;
}
ret_t
cherokee_rule_request_new (cherokee_rule_request_t **rule)
{
CHEROKEE_NEW_STRUCT (n, rule_request);
/* Parent class constructor
*/
cherokee_rule_init_base (RULE(n), PLUGIN_INFO_PTR(request));
/* Virtual methods
*/
RULE(n)->match = (rule_func_match_t) match;
RULE(n)->configure = (rule_func_configure_t) configure;
MODULE(n)->free = (module_func_free_t) _free;
/* Properties
*/
n->pcre = NULL;
cherokee_buffer_init (&n->pattern);
*rule = n;
return ret_ok;
}
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