mod_alias.c revision 33510984c759eb3da154ceb0db9b75fa0031d3b4
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny/* Licensed to the Apache Software Foundation (ASF) under one or more
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * contributor license agreements. See the NOTICE file distributed with
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * this work for additional information regarding copyright ownership.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * The ASF licenses this file to You under the Apache License, Version 2.0
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * (the "License"); you may not use this file except in compliance with
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * the License. You may obtain a copy of the License at
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny *
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * http://www.apache.org/licenses/LICENSE-2.0
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny *
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Unless required by applicable law or agreed to in writing, software
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * distributed under the License is distributed on an "AS IS" BASIS,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * See the License for the specific language governing permissions and
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * limitations under the License.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny/*
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * http_alias.c: Stuff for dealing with directory aliases
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny *
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Original by Rob McCool, rewritten in succession by David Robinson
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * and rst.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny *
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "apr_strings.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "apr_lib.h"
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#define APR_WANT_STRFUNC
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "apr_want.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "ap_config.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "httpd.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "http_core.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny#include "http_config.h"
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny#include "http_request.h"
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny#include "http_log.h"
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenytypedef struct {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *real;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *fake;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny char *handler;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_regex_t *regexp;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int redir_status; /* 301, 302, 303, 410, etc */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny} alias_entry;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenytypedef struct {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_array_header_t *aliases;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_array_header_t *redirects;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny} alias_server_conf;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zelenytypedef struct {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_array_header_t *redirects;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny} alias_dir_conf;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenymodule AP_MODULE_DECLARE_DATA alias_module;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic void *create_alias_config(apr_pool_t *p, server_rec *s)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_server_conf *a =
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny a->aliases = apr_array_make(p, 20, sizeof(alias_entry));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny a->redirects = apr_array_make(p, 20, sizeof(alias_entry));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return a;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zelenystatic void *create_alias_dir_config(apr_pool_t *p, char *d)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny{
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny alias_dir_conf *a =
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf));
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny a->redirects = apr_array_make(p, 2, sizeof(alias_entry));
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny return a;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic void *merge_alias_config(apr_pool_t *p, void *basev, void *overridesv)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_server_conf *a =
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_server_conf *base = (alias_server_conf *) basev;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny alias_server_conf *overrides = (alias_server_conf *) overridesv;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny a->aliases = apr_array_append(p, overrides->aliases, base->aliases);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny a->redirects = apr_array_append(p, overrides->redirects, base->redirects);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return a;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic void *merge_alias_dir_config(apr_pool_t *p, void *basev, void *overridesv)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_dir_conf *a =
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_dir_conf *base = (alias_dir_conf *) basev;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_dir_conf *overrides = (alias_dir_conf *) overridesv;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny a->redirects = apr_array_append(p, overrides->redirects, base->redirects);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return a;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny/* need prototype for overlap check */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic int alias_matches(const char *uri, const char *alias_fakename);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_alias_internal(cmd_parms *cmd, void *dummy,
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny const char *fake, const char *real,
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny int use_regex)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny{
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny server_rec *s = cmd->server;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny alias_server_conf *conf = ap_get_module_config(s->module_config,
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny &alias_module);
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny alias_entry *new = apr_array_push(conf->aliases);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_entry *entries = (alias_entry *)conf->aliases->elts;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int i;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny /* XXX: real can NOT be relative to DocumentRoot here... compat bug. */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (use_regex) {
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny new->regexp = ap_pregcomp(cmd->pool, fake, AP_REG_EXTENDED);
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny if (new->regexp == NULL)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny return "Regular expression could not be compiled.";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->real = real;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* XXX This may be optimized, but we must know that new->real
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * exists. If so, we can dir merge later, trusing new->real
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * and just canonicalizing the remainder. Not till I finish
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * cleaning out the old ap_canonical stuff first.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->real = real;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->fake = fake;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->handler = cmd->info;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* check for overlapping (Script)Alias directives
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * and throw a warning if found one
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!use_regex) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny for (i = 0; i < conf->aliases->nelts - 1; ++i) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_entry *alias = &entries[i];
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if ( (!alias->regexp && alias_matches(fake, alias->fake) > 0)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny || (alias->regexp && !ap_regexec(alias->regexp, fake, 0, NULL, 0))) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "The %s directive in %s at line %d will probably "
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "never match because it overlaps an earlier "
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "%sAlias%s.",
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny cmd->cmd->name, cmd->directive->filename,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny cmd->directive->line_num,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias->handler ? "Script" : "",
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias->regexp ? "Match" : "");
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny break; /* one warning per alias should be sufficient */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return NULL;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_alias(cmd_parms *cmd, void *dummy, const char *fake,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *real)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return add_alias_internal(cmd, dummy, fake, real, 0);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_alias_regex(cmd_parms *cmd, void *dummy,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *fake, const char *real)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return add_alias_internal(cmd, dummy, fake, real, 1);
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny}
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_redirect_internal(cmd_parms *cmd,
2f3ee3f49019f5b60adbe073070f31e6e2d7c7abStephen Gallagher alias_dir_conf *dirconf,
2f3ee3f49019f5b60adbe073070f31e6e2d7c7abStephen Gallagher const char *arg1, const char *arg2,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *arg3, int use_regex)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_entry *new;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny server_rec *s = cmd->server;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_server_conf *serverconf = ap_get_module_config(s->module_config,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny &alias_module);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int status = (int) (long) cmd->info;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int grokarg1 = 1;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_regex_t *regex = NULL;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *fake = arg2;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *url = arg3;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /*
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Logic flow:
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Go ahead and try to grok the 1st arg, in case it is a
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Redirect status. Now if we have 3 args, we expect that
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * we were able to understand that 1st argument (it's something
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * we expected, so if not, then we bail
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!strcasecmp(arg1, "permanent"))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny status = HTTP_MOVED_PERMANENTLY;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else if (!strcasecmp(arg1, "temp"))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny status = HTTP_MOVED_TEMPORARILY;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else if (!strcasecmp(arg1, "seeother"))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny status = HTTP_SEE_OTHER;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else if (!strcasecmp(arg1, "gone"))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny status = HTTP_GONE;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else if (apr_isdigit(*arg1))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny status = atoi(arg1);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny grokarg1 = 0;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (arg3 && !grokarg1)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return "Redirect: invalid first argument (of three)";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /*
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * if we don't have the 3rd arg and we didn't understand the 1st
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * one, then assume URL-path URL. This also handles case, eg, GONE
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * we even though we don't have a 3rd arg, we did understand the 1st
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * one, so we don't want to re-arrange
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny if (!arg3 && !grokarg1) {
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny fake = arg1;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny url = arg2;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny }
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (use_regex) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny regex = ap_pregcomp(cmd->pool, fake, AP_REG_EXTENDED);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (regex == NULL)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return "Regular expression could not be compiled.";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (ap_is_HTTP_REDIRECT(status)) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!url)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny return "URL to redirect to is missing";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* PR#35314: we can allow path components here;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * they get correctly resolved to full URLs.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!use_regex && !ap_is_url(url) && (url[0] != '/'))
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return "Redirect to non-URL";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (url)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return "Redirect URL not valid for this status";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (cmd->path)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new = apr_array_push(dirconf->redirects);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new = apr_array_push(serverconf->redirects);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny new->fake = fake;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny new->real = url;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->regexp = regex;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny new->redir_status = status;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return NULL;
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny}
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_redirect(cmd_parms *cmd, void *dirconf,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *arg1, const char *arg2,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *arg3)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 0);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_redirect2(cmd_parms *cmd, void *dirconf,
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny const char *arg1, const char *arg2)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny{
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny return add_redirect_internal(cmd, dirconf, arg1, arg2, NULL, 0);
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const char *add_redirect_regex(cmd_parms *cmd, void *dirconf,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *arg1, const char *arg2,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny const char *arg3)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 1);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
74f857536411b46712f9b3dc0f1c53924b36dc02Stephen Gallagher
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic const command_rec alias_cmds[] =
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("Alias", add_alias, NULL, RSRC_CONF,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a fakename and a realname"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("ScriptAlias", add_alias, "cgi-script", RSRC_CONF,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a fakename and a realname"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE23("Redirect", add_redirect, (void *) HTTP_MOVED_TEMPORARILY,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny OR_FILEINFO,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "an optional status, then document to be redirected and "
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "destination URL"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("AliasMatch", add_alias_regex, NULL, RSRC_CONF,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a regular expression and a filename"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("ScriptAliasMatch", add_alias_regex, "cgi-script", RSRC_CONF,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a regular expression and a filename"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE23("RedirectMatch", add_redirect_regex,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "an optional status, then a regular expression and "
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "destination URL"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("RedirectTemp", add_redirect2,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a document to be redirected, then the destination URL"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_INIT_TAKE2("RedirectPermanent", add_redirect2,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (void *) HTTP_MOVED_PERMANENTLY, OR_FILEINFO,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny "a document to be redirected, then the destination URL"),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny {NULL}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny};
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zelenystatic int alias_matches(const char *uri, const char *alias_fakename)
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny{
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny const char *aliasp = alias_fakename, *urip = uri;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
2f3ee3f49019f5b60adbe073070f31e6e2d7c7abStephen Gallagher while (*aliasp) {
2f3ee3f49019f5b60adbe073070f31e6e2d7c7abStephen Gallagher if (*aliasp == '/') {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* any number of '/' in the alias matches any number in
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * the supplied URI, but there must be at least one...
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (*urip != '/')
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return 0;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny do {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ++aliasp;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny } while (*aliasp == '/');
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny do {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ++urip;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny } while (*urip == '/');
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* Other characters are compared literally */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (*urip++ != *aliasp++)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return 0;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* Check last alias path component matched all the way */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (aliasp[-1] != '/' && *urip != '\0' && *urip != '/')
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return 0;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* Return number of characters from URI which matched (may be
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * greater than length of alias, since we may have matched
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * doubled slashes)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return urip - uri;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic char *try_alias_list(request_rec *r, apr_array_header_t *aliases,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int is_redir, int *status)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_entry *entries = (alias_entry *) aliases->elts;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_regmatch_t regm[AP_MAX_REG_MATCH];
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny char *found = NULL;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int i;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny for (i = 0; i < aliases->nelts; ++i) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_entry *alias = &entries[i];
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int l;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (alias->regexp) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!ap_regexec(alias->regexp, r->uri, AP_MAX_REG_MATCH, regm, 0)) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (alias->real) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = ap_pregsub(r->pool, alias->real, r->uri,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_MAX_REG_MATCH, regm);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (found) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (is_redir) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_uri_t uri;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_uri_parse(r->pool, found, &uri);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* Do not escape the query string or fragment. */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = apr_uri_unparse(r->pool, &uri,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny APR_URI_UNP_OMITQUERY);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = ap_escape_uri(r->pool, found);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (uri.query) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = apr_pstrcat(r->pool, found, "?",
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny uri.query, NULL);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (uri.fragment) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = apr_pstrcat(r->pool, found, "#",
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny uri.fragment, NULL);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int pathlen = strlen(found) -
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny (strlen(r->uri + regm[0].rm_eo));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_DEBUG_ASSERT(pathlen >= 0);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny AP_DEBUG_ASSERT(pathlen <= strlen(found));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_set_context_info(r,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_pstrmemdup(r->pool, r->uri,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny regm[0].rm_eo),
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_pstrmemdup(r->pool, found,
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny pathlen));
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* need something non-null */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = "";
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny l = alias_matches(r->uri, alias->fake);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (l > 0) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_set_context_info(r, alias->fake, alias->real);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (is_redir) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny char *escurl;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny escurl = ap_os_escape_path(r->pool, r->uri + l, 1);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny found = apr_pstrcat(r->pool, alias->real, escurl, NULL);
fdab7bbf8933351f6254438c30ff361cd748b15aJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny else
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = apr_pstrcat(r->pool, alias->real, r->uri + l, NULL);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (found) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (alias->handler) { /* Set handler, and leave a note for mod_cgi */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny r->handler = alias->handler;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny apr_table_setn(r->notes, "alias-forced-type", r->handler);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny /* XXX This is as SLOW as can be, next step, we optimize
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * and merge to whatever part of the found path was already
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * canonicalized. After I finish eliminating os canonical.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny * Better fail test for ap_server_root_relative needed here.
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny */
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (!is_redir) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny found = ap_server_root_relative(r->pool, found);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (found) {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny *status = alias->redir_status;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return found;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return NULL;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny}
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zelenystatic int translate_alias_redir(request_rec *r)
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny{
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ap_conf_vector_t *sconf = r->server->module_config;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny alias_server_conf *serverconf = ap_get_module_config(sconf, &alias_module);
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny char *ret;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny int status;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if (r->uri[0] != '/' && r->uri[0] != '\0') {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny return DECLINED;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny }
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny if ((ret = try_alias_list(r, serverconf->redirects, 1, &status)) != NULL) {
1a7d1977037864e52858058777af8ff8401547ddJan Cholasta if (ap_is_HTTP_REDIRECT(status)) {
1a7d1977037864e52858058777af8ff8401547ddJan Cholasta if (ret[0] == '/') {
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny char *orig_target = ret;
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny
ad07ed37b6b51ef134d4524edaf2259e19ac984fJan Zeleny ret = ap_construct_url(r->pool, ret, r);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"incomplete redirection target of '%s' for "
"URI '%s' modified to '%s'",
orig_target, r->uri, ret);
}
if (!ap_is_url(ret)) {
status = HTTP_INTERNAL_SERVER_ERROR;
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"cannot redirect '%s' to '%s'; "
"target is not a valid absoluteURI or abs_path",
r->uri, ret);
}
else {
/* append requested query only, if the config didn't
* supply its own.
*/
if (r->args && !ap_strchr(ret, '?')) {
ret = apr_pstrcat(r->pool, ret, "?", r->args, NULL);
}
apr_table_setn(r->headers_out, "Location", ret);
}
}
return status;
}
if ((ret = try_alias_list(r, serverconf->aliases, 0, &status)) != NULL) {
r->filename = ret;
return OK;
}
return DECLINED;
}
static int fixup_redir(request_rec *r)
{
void *dconf = r->per_dir_config;
alias_dir_conf *dirconf =
(alias_dir_conf *) ap_get_module_config(dconf, &alias_module);
char *ret;
int status;
/* It may have changed since last time, so try again */
if ((ret = try_alias_list(r, dirconf->redirects, 1, &status)) != NULL) {
if (ap_is_HTTP_REDIRECT(status)) {
if (ret[0] == '/') {
char *orig_target = ret;
ret = ap_construct_url(r->pool, ret, r);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"incomplete redirection target of '%s' for "
"URI '%s' modified to '%s'",
orig_target, r->uri, ret);
}
if (!ap_is_url(ret)) {
status = HTTP_INTERNAL_SERVER_ERROR;
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"cannot redirect '%s' to '%s'; "
"target is not a valid absoluteURI or abs_path",
r->uri, ret);
}
else {
/* append requested query only, if the config didn't
* supply its own.
*/
if (r->args && !ap_strchr(ret, '?')) {
ret = apr_pstrcat(r->pool, ret, "?", r->args, NULL);
}
apr_table_setn(r->headers_out, "Location", ret);
}
}
return status;
}
return DECLINED;
}
static void register_hooks(apr_pool_t *p)
{
static const char * const aszSucc[]={ "mod_userdir.c",
"mod_vhost_alias.c",NULL };
ap_hook_translate_name(translate_alias_redir,NULL,aszSucc,APR_HOOK_MIDDLE);
ap_hook_fixups(fixup_redir,NULL,NULL,APR_HOOK_MIDDLE);
}
AP_DECLARE_MODULE(alias) =
{
STANDARD20_MODULE_STUFF,
create_alias_dir_config, /* dir config creater */
merge_alias_dir_config, /* dir merger --- default is to override */
create_alias_config, /* server config */
merge_alias_config, /* merge server configs */
alias_cmds, /* command apr_table_t */
register_hooks /* register hooks */
};