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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 "handler_common.h"
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include "util.h"
#include "connection.h"
#include "connection-protected.h"
#include "server.h"
#include "server-protected.h"
#include "module.h"
#include "connection.h"
#define ENTRIES "handler,common"
#define DEFAULT_ALLOW_PATHINFO false
#define DEFAULT_ALLOW_DIRLIST true
ret_t
cherokee_handler_common_props_free (cherokee_handler_common_props_t *props)
{
if (props->props_file != NULL) {
cherokee_handler_file_props_free (props->props_file);
props->props_file = NULL;
}
if (props->props_dirlist != NULL) {
cherokee_handler_dirlist_props_free (props->props_dirlist);
props->props_dirlist = NULL;
}
return cherokee_handler_props_free_base (HANDLER_PROPS(props));
}
ret_t
cherokee_handler_common_configure (cherokee_config_node_t *conf, cherokee_server_t *srv, cherokee_module_props_t **_props)
{
ret_t ret;
cherokee_config_node_t *subconf;
cherokee_handler_common_props_t *props;
if (*_props == NULL) {
CHEROKEE_NEW_STRUCT (n, handler_common_props);
cherokee_handler_props_init_base (HANDLER_PROPS(n),
MODULE_PROPS_FREE(cherokee_handler_common_props_free));
n->props_file = NULL;
n->props_dirlist = NULL;
n->allow_pathinfo = DEFAULT_ALLOW_PATHINFO;
n->allow_dirlist = DEFAULT_ALLOW_DIRLIST;
*_props = MODULE_PROPS(n);
}
props = PROP_COMMON(*_props);
/* Parse 'common' parameters
*/
ret = cherokee_config_node_get (conf, "allow_pathinfo", &subconf);
if (ret == ret_ok) {
ret = cherokee_atob (subconf->val.buf, &props->allow_pathinfo);
if (ret != ret_ok) return ret;
}
ret = cherokee_config_node_get (conf, "allow_dirlist", &subconf);
if (ret == ret_ok) {
ret = cherokee_atob (subconf->val.buf, &props->allow_dirlist);
if (ret != ret_ok) return ret;
}
/* Parse 'file' parameters
*/
ret = cherokee_handler_file_configure (conf, srv, (cherokee_module_props_t **)&props->props_file);
if ((ret != ret_ok) && (ret != ret_deny)) return ret;
/* Parse 'dirlist' parameters
*/
return cherokee_handler_dirlist_configure (conf, srv, (cherokee_module_props_t **)&props->props_dirlist);
}
ret_t
cherokee_handler_common_new (cherokee_handler_t **hdl, void *cnt, cherokee_module_props_t *props)
{
ret_t ret;
int exists;
struct stat nocache_info;
struct stat *info;
cherokee_iocache_entry_t *io_entry = NULL;
cherokee_iocache_t *iocache = NULL;
cherokee_boolean_t use_iocache = true;
cherokee_connection_t *conn = CONN(cnt);
TRACE_CONN(conn);
/* Check some properties
*/
if (PROP_COMMON(props)->props_file != NULL) {
use_iocache = PROP_COMMON(props)->props_file->use_cache;
}
use_iocache &= (CONN_SRV(cnt)->iocache != NULL);
/* Check the request
*/
cherokee_buffer_add_buffer (&conn->local_directory, &conn->request);
if (use_iocache)
iocache = CONN_SRV(conn)->iocache;
ret = cherokee_io_stat (iocache, &conn->local_directory, use_iocache, &nocache_info, &io_entry, &info);
exists = (ret == ret_ok);
TRACE (ENTRIES, "request: '%s', local: '%s', exists %d\n",
conn->request.buf, conn->local_directory.buf, exists);
if (!exists) {
ret_t ret;
char *pathinfo;
int pathinfo_len;
int begin;
/* If PathInfo is not allowed just return 'Not Found'
*/
if (! PROP_COMMON(props)->allow_pathinfo) {
TRACE(ENTRIES, "Returns conn->error_code: %s\n", "http_not_found");
cherokee_iocache_entry_unref (&io_entry);
conn->error_code = http_not_found;
return ret_error;
}
/* Maybe it could stat() the file because the request contains
* a PathInfo string at the end..
*/
begin = conn->local_directory.len - conn->request.len;
ret = cherokee_split_pathinfo (&conn->local_directory, begin, true, &pathinfo, &pathinfo_len);
if ((ret == ret_not_found) || (pathinfo_len <= 0)) {
TRACE(ENTRIES, "Returns conn->error_code: %s\n", "http_not_found");
cherokee_iocache_entry_unref (&io_entry);
conn->error_code = http_not_found;
return ret_error;
}
/* Copy the PathInfo and clean the request
*/
if (cherokee_buffer_is_empty (&conn->request_original)) {
cherokee_buffer_add_buffer (&conn->request_original, &conn->request);
cherokee_buffer_add_buffer (&conn->query_string_original, &conn->query_string);
}
cherokee_buffer_add (&conn->pathinfo, pathinfo, pathinfo_len);
cherokee_buffer_drop_ending (&conn->request, pathinfo_len);
/* Clean the local_directory, this connection is going
* to restart the connection setup phase
*/
cherokee_buffer_clean (&conn->local_directory);
cherokee_iocache_entry_unref (&io_entry);
TRACE_CONN(conn);
return ret_eagain;
}
cherokee_buffer_drop_ending (&conn->local_directory, conn->request.len);
/* Is it a file?
*/
if (S_ISREG(info->st_mode)) {
TRACE (ENTRIES, "going for %s\n", "handler_file");
cherokee_iocache_entry_unref (&io_entry);
return cherokee_handler_file_new (hdl, cnt, MODULE_PROPS(PROP_COMMON(props)->props_file));
}
/* Is it a directory
*/
if (S_ISDIR(info->st_mode)) {
cherokee_thread_t *thread = CONN_THREAD(conn);
cherokee_list_t *i;
cherokee_iocache_entry_unref (&io_entry);
/* Maybe it has to be redirected
*/
if (cherokee_buffer_end_char (&conn->request) != '/') {
TRACE (ENTRIES, "going for %s\n", "handler_dir");
return cherokee_handler_dirlist_new (hdl, cnt, MODULE_PROPS(PROP_COMMON(props)->props_dirlist));
}
/* Add the request
*/
cherokee_buffer_add_buffer (&conn->local_directory, &conn->request);
/* Have an index file inside?
*/
list_for_each (i, &CONN_VSRV(conn)->index_list) {
int is_dir;
cherokee_buffer_t *index = BUF(LIST_ITEM_INFO(i));
/* Check if the index is fullpath
*/
if (index->buf[0] == '/') {
cherokee_buffer_t *new_local_dir = THREAD_TMP_BUF1(thread);
/* This means there is a configuration entry like:
* 'DirectoryIndex index.php, /index_default.php'
* and it's proceesing '/index_default.php'.
*/
/* Build the secondary path
*/
cherokee_buffer_add_buffer (&conn->effective_directory, &conn->local_directory);
/* Lets reconstruct the local directory
*/
cherokee_buffer_clean (new_local_dir);
cherokee_buffer_add_buffer (new_local_dir, &CONN_VSRV(conn)->root);
cherokee_buffer_add_buffer (new_local_dir, index);
ret = cherokee_io_stat (iocache, new_local_dir, use_iocache, &nocache_info, &io_entry, &info);
exists = (ret == ret_ok);
cherokee_iocache_entry_unref (&io_entry);
if (!exists)
continue;
/* Build the new request before respin
*/
cherokee_buffer_clean (&conn->local_directory);
if (cherokee_buffer_is_empty (&conn->request_original)) {
cherokee_buffer_add_buffer (&conn->request_original, &conn->request);
cherokee_buffer_add_buffer (&conn->query_string_original, &conn->query_string);
}
cherokee_buffer_clean (&conn->request);
cherokee_buffer_add_buffer (&conn->request, index);
TRACE (ENTRIES, "top level index matched %s\n", index->buf);
BIT_SET (conn->options, conn_op_root_index);
TRACE_CONN(conn);
return ret_eagain;
}
/* stat() the possible new path
*/
cherokee_buffer_add_buffer (&conn->local_directory, index);
ret = cherokee_io_stat (iocache, &conn->local_directory, use_iocache, &nocache_info, &io_entry, &info);
exists = (ret == ret_ok);
is_dir = ((ret == ret_ok) && S_ISDIR(info->st_mode));
cherokee_iocache_entry_unref (&io_entry);
cherokee_buffer_drop_ending (&conn->local_directory, index->len);
TRACE (ENTRIES, "trying index '%s', exists %d\n", index->buf, exists);
/* If the file doesn't exist or it is a directory, try with the next one
*/
if ((!exists) || (is_dir))
continue;
/* Add the index file to the request and clean up
*/
cherokee_buffer_drop_ending (&conn->local_directory, conn->request.len);
if (cherokee_buffer_is_empty (&conn->request_original)) {
cherokee_buffer_add_buffer (&conn->request_original, &conn->request);
cherokee_buffer_add_buffer (&conn->query_string_original, &conn->query_string);
}
cherokee_buffer_add_buffer (&conn->request, index);
TRACE_CONN(conn);
return ret_eagain;
}
/* If the dir hasn't a index file, it uses dirlist
*/
cherokee_buffer_drop_ending (&conn->local_directory, conn->request.len);
if (PROP_COMMON(props)->allow_dirlist) {
return cherokee_handler_dirlist_new (hdl, cnt,
MODULE_PROPS(PROP_COMMON(props)->props_dirlist));
}
conn->error_code = http_access_denied;
return ret_error;
}
/* Unknown request type
*/
TRACE(ENTRIES, "Returns conn->error_code: %s\n", "http_unsupported_media_type");
conn->error_code = http_unsupported_media_type;
return ret_error;
}
/* Library init function
*/
static cherokee_boolean_t _common_is_init = false;
void
PLUGIN_INIT_NAME(common) (cherokee_plugin_loader_t *loader)
{
if (_common_is_init) return;
_common_is_init = true;
/* Load the dependences
*/
cherokee_plugin_loader_load (loader, "file");
cherokee_plugin_loader_load (loader, "dirlist");
}
PLUGIN_INFO_HANDLER_EASY_INIT (common, http_all_methods);
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