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/* ====================================================================
* Copyright (c) 1995-1997 The Apache Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 5. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Group and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
/*
* mod_dir.c: handle default index files, and trailing-/ redirects
*/
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_request.h"
#include "http_protocol.h"
#include "http_log.h"
#include "http_main.h"
#include "util_script.h"
module MODULE_VAR_EXPORT dir_module;
typedef struct dir_config_struct {
char *index_names;
} dir_config_rec;
#define DIR_CMD_PERMS OR_INDEXES
static command_rec dir_cmds[] = {
{ "DirectoryIndex", set_string_slot,
(void*)XtOffsetOf(dir_config_rec, index_names),
DIR_CMD_PERMS, RAW_ARGS,
"a list of file names" },
{ NULL }
};
static void *create_dir_config (pool *p, char *dummy)
{
dir_config_rec *new =
(dir_config_rec *) pcalloc (p, sizeof(dir_config_rec));
new->index_names = NULL;
return (void *)new;
}
static void *merge_dir_configs (pool *p, void *basev, void *addv)
{
dir_config_rec *new=(dir_config_rec*)pcalloc (p, sizeof(dir_config_rec));
dir_config_rec *base = (dir_config_rec *)basev;
dir_config_rec *add = (dir_config_rec *)addv;
new->index_names = add->index_names? add->index_names: base->index_names;
return new;
}
static int handle_dir (request_rec *r)
{
dir_config_rec *d =
(dir_config_rec *)get_module_config (r->per_dir_config,
&dir_module);
const char *names_ptr = d->index_names ? d->index_names : DEFAULT_INDEX;
int error_notfound = 0;
if (r->uri[0] == '\0' || r->uri[strlen(r->uri)-1] != '/') {
char* ifile;
if (r->args != NULL)
ifile = pstrcat (r->pool, escape_uri(r->pool, r->uri),
"/", "?", r->args, NULL);
else
ifile = pstrcat (r->pool, escape_uri(r->pool, r->uri),
"/", NULL);
table_set (r->headers_out, "Location",
construct_url(r->pool, ifile, r->server));
return HTTP_MOVED_PERMANENTLY;
}
/* KLUDGE --- make the sub_req lookups happen in the right directory.
* Fixing this in the sub_req_lookup functions themselves is difficult,
* and would probably break virtual includes...
*/
if (r->filename[strlen (r->filename) - 1] != '/') {
r->filename = pstrcat (r->pool, r->filename, "/", NULL);
}
while (*names_ptr) {
char *name_ptr = getword_conf (r->pool, &names_ptr);
request_rec *rr = sub_req_lookup_uri (name_ptr, r);
if (rr->status == HTTP_OK && rr->finfo.st_mode != 0) {
char* new_uri = escape_uri(r->pool, rr->uri);
if (rr->args != NULL)
new_uri = pstrcat(r->pool, new_uri, "?", rr->args, NULL);
else if (r->args != NULL)
new_uri = pstrcat(r->pool, new_uri, "?", r->args, NULL);
destroy_sub_req (rr);
internal_redirect (new_uri, r);
return OK;
}
/* If the request returned a redirect, propagate it to the client */
if (is_HTTP_REDIRECT(rr->status) ||
(rr->status == HTTP_NOT_ACCEPTABLE && *names_ptr == '\0')) {
error_notfound = rr->status;
r->notes = overlay_tables(r->pool, r->notes, rr->notes);
r->headers_out = overlay_tables(r->pool, r->headers_out,
rr->headers_out);
r->err_headers_out = overlay_tables(r->pool, r->err_headers_out,
rr->err_headers_out);
destroy_sub_req(rr);
return error_notfound;
}
/* If the request returned something other than 404 (or 200),
* it means the module encountered some sort of problem. To be
* secure, we should return the error, rather than create
* along a (possibly unsafe) directory index.
*
* So we store the error, and if none of the listed files
* exist, we return the last error response we got, instead
* of a directory listing.
*/
if (rr->status && rr->status != HTTP_NOT_FOUND && rr->status != HTTP_OK)
error_notfound = rr->status;
destroy_sub_req (rr);
}
if (error_notfound)
return error_notfound;
if (r->method_number != M_GET) return NOT_IMPLEMENTED;
/* nothing for us to do, pass on through */
return DECLINED;
}
static handler_rec dir_handlers[] = {
{ DIR_MAGIC_TYPE, handle_dir },
{ NULL }
};
module MODULE_VAR_EXPORT dir_module = {
STANDARD_MODULE_STUFF,
NULL, /* initializer */
create_dir_config, /* dir config creater */
merge_dir_configs, /* dir merger --- default is to override */
NULL, /* server config */
NULL, /* merge server config */
dir_cmds, /* command table */
dir_handlers, /* handlers */
NULL, /* filename translation */
NULL, /* check_user_id */
NULL, /* check auth */
NULL, /* check access */
NULL, /* type_checker */
NULL, /* fixups */
NULL, /* logger */
NULL, /* header parser */
NULL /* child_init */
};
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