/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* http_request.c: functions to get and process requests
*
* Rob McCool 3/21/93
*
* Thoroughly revamped by rst for Apache. NB this file reads
* best from the bottom up.
*
*/
#include "apr_strings.h"
#include "apr_file_io.h"
#include "apr_fnmatch.h"
#define APR_WANT_STRFUNC
#include "apr_want.h"
#include "ap_config.h"
#include "httpd.h"
#include "http_config.h"
#include "http_request.h"
#include "http_core.h"
#include "http_protocol.h"
#include "http_log.h"
#include "http_main.h"
#include "util_filter.h"
#include "util_charset.h"
#include "scoreboard.h"
#include "mod_core.h"
#if APR_HAVE_STDARG_H
#include <stdarg.h>
#endif
APLOG_USE_MODULE(http);
/*****************************************************************
*
* Mainline request processing...
*/
/* XXX A cleaner and faster way to do this might be to pass the request_rec
* down the filter chain as a parameter. It would need to change for
* subrequest vs. main request filters; perhaps the subrequest filter could
* make the switch.
*/
static void update_r_in_filters(ap_filter_t *f,
request_rec *from,
request_rec *to)
{
while (f) {
if (f->r == from) {
f->r = to;
}
f = f->next;
}
}
static void ap_die_r(int type, request_rec *r, int recursive_error)
{
char *custom_response;
request_rec *r_1st_err = r;
if (type == OK || type == DONE) {
ap_finalize_request_protocol(r);
return;
}
if (!ap_is_HTTP_VALID_RESPONSE(type)) {
ap_filter_t *next;
/*
* Check if we still have the ap_http_header_filter in place. If
* this is the case we should not ignore the error here because
* it means that we have not sent any response at all and never
* will. This is bad. Sent an internal server error instead.
*/
next = r->output_filters;
while (next && (next->frec != ap_http_header_filter_handle)) {
next = next->next;
}
/*
* If next != NULL then we left the while above because of
* next->frec == ap_http_header_filter
*/
if (next) {
if (type != AP_FILTER_ERROR) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01579)
"Invalid response status %i", type);
}
else {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(02831)
"Response from AP_FILTER_ERROR");
}
type = HTTP_INTERNAL_SERVER_ERROR;
}
else {
return;
}
}
/*
* The following takes care of Apache redirects to custom response URLs
* Note that if we are already dealing with the response to some other
* error condition, we just report on the original error, and give up on
* any attempt to handle the other thing "intelligently"...
*/
if (recursive_error != HTTP_OK) {
while (r_1st_err->prev && (r_1st_err->prev->status != HTTP_OK))
r_1st_err = r_1st_err->prev; /* Get back to original error */
if (r_1st_err != r) {
/* The recursive error was caused by an ErrorDocument specifying
* an internal redirect to a bad URI. ap_internal_redirect has
* changed the filter chains to point to the ErrorDocument's
* request_rec. Back out those changes so we can safely use the
* original failing request_rec to send the canned error message.
*
* ap_send_error_response gets rid of existing resource filters
* on the output side, so we can skip those.
*/
update_r_in_filters(r_1st_err->proto_output_filters, r, r_1st_err);
update_r_in_filters(r_1st_err->input_filters, r, r_1st_err);
}
custom_response = NULL; /* Do NOT retry the custom thing! */
}
else {
int error_index = ap_index_of_response(type);
custom_response = ap_response_code_string(r, error_index);
recursive_error = 0;
}
r->status = type;
/*
* This test is done here so that none of the auth modules needs to know
* about proxy authentication. They treat it like normal auth, and then
* we tweak the status.
*/
if (HTTP_UNAUTHORIZED == r->status && PROXYREQ_PROXY == r->proxyreq) {
r->status = HTTP_PROXY_AUTHENTICATION_REQUIRED;
}
/* If we don't want to keep the connection, make sure we mark that the
* connection is not eligible for keepalive. If we want to keep the
* connection, be sure that the request body (if any) has been read.
*/
if (ap_status_drops_connection(r->status)) {
r->connection->keepalive = AP_CONN_CLOSE;
}
/*
* Two types of custom redirects --- plain text, and URLs. Plain text has
* a leading '"', so the URL code, here, is triggered on its absence
*/
if (custom_response && custom_response[0] != '"') {
if (ap_is_url(custom_response)) {
/*
* The URL isn't local, so lets drop through the rest of this
* apache code, and continue with the usual REDIRECT handler.
* But note that the client will ultimately see the wrong
* status...
*/
r->status = HTTP_MOVED_TEMPORARILY;
apr_table_setn(r->headers_out, "Location", custom_response);
}
else if (custom_response[0] == '/') {
const char *error_notes, *original_method;
int original_method_number;
r->no_local_copy = 1; /* Do NOT send HTTP_NOT_MODIFIED for
* error documents! */
/*
* This redirect needs to be a GET no matter what the original
* method was.
*/
apr_table_setn(r->subprocess_env, "REQUEST_METHOD", r->method);
/*
* Provide a special method for modules to communicate
* more informative (than the plain canned) messages to us.
* Propagate them to ErrorDocuments via the ERROR_NOTES variable:
*/
if ((error_notes = apr_table_get(r->notes,
"error-notes")) != NULL) {
apr_table_setn(r->subprocess_env, "ERROR_NOTES", error_notes);
}
original_method = r->method;
original_method_number = r->method_number;
r->method = "GET";
r->method_number = M_GET;
ap_internal_redirect(custom_response, r);
/* preserve ability to see %<m in the access log */
r->method = original_method;
r->method_number = original_method_number;
return;
}
else {
/*
* Dumb user has given us a bad url to redirect to --- fake up
* dying with a recursive server error...
*/
recursive_error = HTTP_INTERNAL_SERVER_ERROR;
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01580)
"Invalid error redirection directive: %s",
custom_response);
}
}
ap_send_error_response(r_1st_err, recursive_error);
}
AP_DECLARE(void) ap_die(int type, request_rec *r)
{
ap_die_r(type, r, r->status);
}
AP_DECLARE(apr_status_t) ap_check_pipeline(conn_rec *c, apr_bucket_brigade *bb,
unsigned int max_blank_lines)
{
apr_status_t rv = APR_EOF;
ap_input_mode_t mode = AP_MODE_SPECULATIVE;
unsigned int num_blank_lines = 0;
apr_size_t cr = 0;
char buf[2];
while (c->keepalive != AP_CONN_CLOSE && !c->aborted) {
apr_size_t len = cr + 1;
apr_brigade_cleanup(bb);
rv = ap_get_brigade(c->input_filters, bb, mode,
APR_NONBLOCK_READ, len);
if (rv != APR_SUCCESS || APR_BRIGADE_EMPTY(bb) || !max_blank_lines) {
if (mode == AP_MODE_READBYTES) {
/* Unexpected error, stop with this connection */
ap_log_cerror(APLOG_MARK, APLOG_ERR, rv, c, APLOGNO(02967)
"Can't consume pipelined empty lines");
c->keepalive = AP_CONN_CLOSE;
rv = APR_EGENERAL;
}
else if (rv != APR_SUCCESS || APR_BRIGADE_EMPTY(bb)) {
if (rv != APR_SUCCESS && !APR_STATUS_IS_EAGAIN(rv)) {
/* Pipe is dead */
c->keepalive = AP_CONN_CLOSE;
}
else {
/* Pipe is up and empty */
rv = APR_EAGAIN;
}
}
else {
apr_off_t n = 0;
/* Single read asked, (non-meta-)data available? */
rv = apr_brigade_length(bb, 0, &n);
if (rv == APR_SUCCESS && n <= 0) {
rv = APR_EAGAIN;
}
}
break;
}
/* Lookup and consume blank lines */
rv = apr_brigade_flatten(bb, buf, &len);
if (rv != APR_SUCCESS || len != cr + 1) {
int log_level;
if (mode == AP_MODE_READBYTES) {
/* Unexpected error, stop with this connection */
c->keepalive = AP_CONN_CLOSE;
log_level = APLOG_ERR;
rv = APR_EGENERAL;
}
else {
/* Let outside (non-speculative/blocking) read determine
* where this possible failure comes from (metadata,
* morphed EOF socket, ...). Debug only here.
*/
log_level = APLOG_DEBUG;
rv = APR_SUCCESS;
}
ap_log_cerror(APLOG_MARK, log_level, rv, c, APLOGNO(02968)
"Can't check pipelined data");
break;
}
if (mode == AP_MODE_READBYTES) {
/* [CR]LF consumed, try next */
mode = AP_MODE_SPECULATIVE;
cr = 0;
}
else if (cr) {
AP_DEBUG_ASSERT(len == 2 && buf[0] == APR_ASCII_CR);
if (buf[1] == APR_ASCII_LF) {
/* consume this CRLF */
mode = AP_MODE_READBYTES;
num_blank_lines++;
}
else {
/* CR(?!LF) is data */
break;
}
}
else {
if (buf[0] == APR_ASCII_LF) {
/* consume this LF */
mode = AP_MODE_READBYTES;
num_blank_lines++;
}
else if (buf[0] == APR_ASCII_CR) {
cr = 1;
}
else {
/* Not [CR]LF, some data */
break;
}
}
if (num_blank_lines > max_blank_lines) {
/* Enough blank lines with this connection,
* stop and don't recycle it.
*/
c->keepalive = AP_CONN_CLOSE;
rv = APR_NOTFOUND;
break;
}
}
return rv;
}
#define RETRIEVE_BRIGADE_FROM_POOL(bb, key, pool, allocator) do { \
apr_pool_userdata_get((void **)&bb, key, pool); \
if (bb == NULL) { \
bb = apr_brigade_create(pool, allocator); \
apr_pool_userdata_setn((const void *)bb, key, NULL, pool); \
} \
else { \
apr_brigade_cleanup(bb); \
} \
} while(0)
AP_DECLARE(void) ap_process_request_after_handler(request_rec *r)
{
apr_bucket_brigade *bb;
apr_bucket *b;
conn_rec *c = r->connection;
apr_status_t rv;
/* Send an EOR bucket through the output filter chain. When
* this bucket is destroyed, the request will be logged and
* its pool will be freed
*/
RETRIEVE_BRIGADE_FROM_POOL(bb, "ap_process_request_after_handler_brigade",
c->pool, c->bucket_alloc);
b = ap_bucket_eor_create(c->bucket_alloc, r);
APR_BRIGADE_INSERT_HEAD(bb, b);
ap_pass_brigade(c->output_filters, bb);
/* The EOR bucket has either been handled by an output filter (eg.
* deleted or moved to a buffered_bb => no more in bb), or an error
* occured before that (eg. c->aborted => still in bb) and we ought
* to destroy it now. So cleanup any remaining bucket along with
* the orphan request (if any).
*/
apr_brigade_cleanup(bb);
/* From here onward, it is no longer safe to reference r
* or r->pool, because r->pool may have been destroyed
* already by the EOR bucket's cleanup function.
*/
/* Check pipeline consuming blank lines, they must not be interpreted as
* the next pipelined request, otherwise we would block on the next read
* without flushing data, and hence possibly delay pending response(s)
* until the next/real request comes in or the keepalive timeout expires.
*/
rv = ap_check_pipeline(c, bb, DEFAULT_LIMIT_BLANK_LINES);
c->data_in_input_filters = (rv == APR_SUCCESS);
apr_brigade_cleanup(bb);
if (c->cs)
c->cs->state = (c->aborted) ? CONN_STATE_LINGER
: CONN_STATE_WRITE_COMPLETION;
AP_PROCESS_REQUEST_RETURN((uintptr_t)r, r->uri, r->status);
if (ap_extended_status) {
ap_time_process_request(c->sbh, STOP_PREQUEST);
}
}
void ap_process_async_request(request_rec *r)
{
conn_rec *c = r->connection;
int access_status;
/* Give quick handlers a shot at serving the request on the fast
* path, bypassing all of the other Apache hooks.
*
* This hook was added to enable serving files out of a URI keyed
* content cache ( e.g., Mike Abbott's Quick Shortcut Cache,
* described here: http://oss.sgi.com/projects/apache/mod_qsc.html )
*
* It may have other uses as well, such as routing requests directly to
* content handlers that have the ability to grok HTTP and do their
* own access checking, etc (e.g. servlet engines).
*
* Use this hook with extreme care and only if you know what you are
* doing.
*/
AP_PROCESS_REQUEST_ENTRY((uintptr_t)r, r->uri);
if (ap_extended_status) {
ap_time_process_request(r->connection->sbh, START_PREQUEST);
}
if (APLOGrtrace4(r)) {
int i;
const apr_array_header_t *t_h = apr_table_elts(r->headers_in);
const apr_table_entry_t *t_elt = (apr_table_entry_t *)t_h->elts;
ap_log_rerror(APLOG_MARK, APLOG_TRACE4, 0, r,
"Headers received from client:");
for (i = 0; i < t_h->nelts; i++, t_elt++) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE4, 0, r, " %s: %s",
ap_escape_logitem(r->pool, t_elt->key),
ap_escape_logitem(r->pool, t_elt->val));
}
}
#if APR_HAS_THREADS
apr_thread_mutex_create(&r->invoke_mtx, APR_THREAD_MUTEX_DEFAULT, r->pool);
apr_thread_mutex_lock(r->invoke_mtx);
#endif
access_status = ap_run_quick_handler(r, 0); /* Not a look-up request */
if (access_status == DECLINED) {
access_status = ap_process_request_internal(r);
if (access_status == OK) {
access_status = ap_invoke_handler(r);
}
}
if (access_status == SUSPENDED) {
/* TODO: Should move these steps into a generic function, so modules
* working on a suspended request can also call _ENTRY again.
*/
AP_PROCESS_REQUEST_RETURN((uintptr_t)r, r->uri, access_status);
if (ap_extended_status) {
ap_time_process_request(c->sbh, STOP_PREQUEST);
}
if (c->cs)
c->cs->state = CONN_STATE_SUSPENDED;
#if APR_HAS_THREADS
apr_thread_mutex_unlock(r->invoke_mtx);
#endif
return;
}
#if APR_HAS_THREADS
apr_thread_mutex_unlock(r->invoke_mtx);
#endif
ap_die_r(access_status, r, HTTP_OK);
ap_process_request_after_handler(r);
}
AP_DECLARE(void) ap_process_request(request_rec *r)
{
apr_bucket_brigade *bb;
apr_bucket *b;
conn_rec *c = r->connection;
apr_status_t rv;
ap_process_async_request(r);
if (!c->data_in_input_filters) {
RETRIEVE_BRIGADE_FROM_POOL(bb, "ap_process_request_brigade",
c->pool, c->bucket_alloc);
b = apr_bucket_flush_create(c->bucket_alloc);
APR_BRIGADE_INSERT_HEAD(bb, b);
rv = ap_pass_brigade(c->output_filters, bb);
if (APR_STATUS_IS_TIMEUP(rv)) {
/*
* Notice a timeout as an error message. This might be
* valuable for detecting clients with broken network
* connections or possible DoS attacks.
*/
ap_log_cerror(APLOG_MARK, APLOG_INFO, rv, c, APLOGNO(01581)
"flushing data to the client");
}
apr_brigade_cleanup(bb);
}
if (ap_extended_status) {
ap_time_process_request(c->sbh, STOP_PREQUEST);
}
}
static apr_table_t *rename_original_env(apr_pool_t *p, apr_table_t *t)
{
const apr_array_header_t *env_arr = apr_table_elts(t);
const apr_table_entry_t *elts = (const apr_table_entry_t *) env_arr->elts;
apr_table_t *new = apr_table_make(p, env_arr->nalloc);
int i;
for (i = 0; i < env_arr->nelts; ++i) {
if (!elts[i].key)
continue;
apr_table_setn(new, apr_pstrcat(p, "REDIRECT_", elts[i].key, NULL),
elts[i].val);
}
return new;
}
static request_rec *internal_internal_redirect(const char *new_uri,
request_rec *r) {
int access_status;
request_rec *new;
const char *vary_header;
if (ap_is_recursion_limit_exceeded(r)) {
ap_die(HTTP_INTERNAL_SERVER_ERROR, r);
return NULL;
}
new = (request_rec *) apr_pcalloc(r->pool, sizeof(request_rec));
new->connection = r->connection;
new->server = r->server;
new->pool = r->pool;
/*
* A whole lot of this really ought to be shared with http_protocol.c...
* another missing cleanup. It's particularly inappropriate to be
* setting header_only, etc., here.
*/
new->method = r->method;
new->method_number = r->method_number;
new->allowed_methods = ap_make_method_list(new->pool, 2);
ap_parse_uri(new, new_uri);
new->parsed_uri.port_str = r->parsed_uri.port_str;
new->parsed_uri.port = r->parsed_uri.port;
new->request_config = ap_create_request_config(r->pool);
new->per_dir_config = r->server->lookup_defaults;
new->prev = r;
r->next = new;
new->useragent_addr = r->useragent_addr;
new->useragent_ip = r->useragent_ip;
/* Must have prev and next pointers set before calling create_request
* hook.
*/
ap_run_create_request(new);
/* Inherit the rest of the protocol info... */
new->the_request = r->the_request;
new->allowed = r->allowed;
new->status = r->status;
new->assbackwards = r->assbackwards;
new->header_only = r->header_only;
new->protocol = r->protocol;
new->proto_num = r->proto_num;
new->hostname = r->hostname;
new->request_time = r->request_time;
new->main = r->main;
new->headers_in = r->headers_in;
new->trailers_in = r->trailers_in;
new->headers_out = apr_table_make(r->pool, 12);
if (ap_is_HTTP_REDIRECT(new->status)) {
const char *location = apr_table_get(r->headers_out, "Location");
if (location)
apr_table_setn(new->headers_out, "Location", location);
}
/* A module (like mod_rewrite) can force an internal redirect
* to carry over the Vary header (if present).
*/
if (apr_table_get(r->notes, "redirect-keeps-vary")) {
if((vary_header = apr_table_get(r->headers_out, "Vary"))) {
apr_table_setn(new->headers_out, "Vary", vary_header);
}
}
new->err_headers_out = r->err_headers_out;
new->trailers_out = apr_table_make(r->pool, 5);
new->subprocess_env = rename_original_env(r->pool, r->subprocess_env);
new->notes = apr_table_make(r->pool, 5);
new->htaccess = r->htaccess;
new->no_cache = r->no_cache;
new->expecting_100 = r->expecting_100;
new->no_local_copy = r->no_local_copy;
new->read_length = r->read_length; /* We can only read it once */
new->vlist_validator = r->vlist_validator;
new->proto_output_filters = r->proto_output_filters;
new->proto_input_filters = r->proto_input_filters;
new->input_filters = new->proto_input_filters;
if (new->main) {
ap_filter_t *f, *nextf;
/* If this is a subrequest, the filter chain may contain a
* mixture of filters specific to the old request (r), and
* some inherited from r->main. Here, inherit that filter
* chain, and remove all those which are specific to the old
* request; ensuring the subreq filter is left in place. */
new->output_filters = r->output_filters;
f = new->output_filters;
do {
nextf = f->next;
if (f->r == r && f->frec != ap_subreq_core_filter_handle) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01582)
"dropping filter '%s' in internal redirect from %s to %s",
f->frec->name, r->unparsed_uri, new_uri);
/* To remove the filter, first set f->r to the *new*
* request_rec, so that ->output_filters on 'new' is
* changed (if necessary) when removing the filter. */
f->r = new;
ap_remove_output_filter(f);
}
f = nextf;
/* Stop at the protocol filters. If a protocol filter has
* been newly installed for this resource, better leave it
* in place, though it's probably a misconfiguration or
* filter bug to get into this state. */
} while (f && f != new->proto_output_filters);
}
else {
/* If this is not a subrequest, clear out all
* resource-specific filters. */
new->output_filters = new->proto_output_filters;
}
update_r_in_filters(new->input_filters, r, new);
update_r_in_filters(new->output_filters, r, new);
apr_table_setn(new->subprocess_env, "REDIRECT_STATUS",
apr_itoa(r->pool, r->status));
/* Begin by presuming any module can make its own path_info assumptions,
* until some module interjects and changes the value.
*/
new->used_path_info = AP_REQ_DEFAULT_PATH_INFO;
#if APR_HAS_THREADS
new->invoke_mtx = r->invoke_mtx;
#endif
/*
* XXX: hmm. This is because mod_setenvif and mod_unique_id really need
* to do their thing on internal redirects as well. Perhaps this is a
* misnamed function.
*/
if ((access_status = ap_run_post_read_request(new))) {
ap_die(access_status, new);
return NULL;
}
return new;
}
/* XXX: Is this function is so bogus and fragile that we deep-6 it? */
AP_DECLARE(void) ap_internal_fast_redirect(request_rec *rr, request_rec *r)
{
/* We need to tell POOL_DEBUG that we're guaranteeing that rr->pool
* will exist as long as r->pool. Otherwise we run into troubles because
* some values in this request will be allocated in r->pool, and others in
* rr->pool.
*/
apr_pool_join(r->pool, rr->pool);
r->proxyreq = rr->proxyreq;
r->no_cache = (r->no_cache && rr->no_cache);
r->no_local_copy = (r->no_local_copy && rr->no_local_copy);
r->mtime = rr->mtime;
r->uri = rr->uri;
r->filename = rr->filename;
r->canonical_filename = rr->canonical_filename;
r->path_info = rr->path_info;
r->args = rr->args;
r->finfo = rr->finfo;
r->handler = rr->handler;
ap_set_content_type(r, rr->content_type);
r->content_encoding = rr->content_encoding;
r->content_languages = rr->content_languages;
r->per_dir_config = rr->per_dir_config;
/* copy output headers from subrequest, but leave negotiation headers */
r->notes = apr_table_overlay(r->pool, rr->notes, r->notes);
r->headers_out = apr_table_overlay(r->pool, rr->headers_out,
r->headers_out);
r->err_headers_out = apr_table_overlay(r->pool, rr->err_headers_out,
r->err_headers_out);
r->trailers_out = apr_table_overlay(r->pool, rr->trailers_out,
r->trailers_out);
r->subprocess_env = apr_table_overlay(r->pool, rr->subprocess_env,
r->subprocess_env);
r->output_filters = rr->output_filters;
r->input_filters = rr->input_filters;
/* If any filters pointed at the now-defunct rr, we must point them
* at our "new" instance of r. In particular, some of rr's structures
* will now be bogus (say rr->headers_out). If a filter tried to modify
* their f->r structure when it is pointing to rr, the real request_rec
* will not get updated. Fix that here.
*/
update_r_in_filters(r->input_filters, rr, r);
update_r_in_filters(r->output_filters, rr, r);
if (r->main) {
ap_filter_t *next = r->output_filters;
while (next && (next != r->proto_output_filters)) {
if (next->frec == ap_subreq_core_filter_handle) {
break;
}
next = next->next;
}
if (!next || next == r->proto_output_filters) {
ap_add_output_filter_handle(ap_subreq_core_filter_handle,
NULL, r, r->connection);
}
}
else {
/*
* We need to check if we now have the SUBREQ_CORE filter in our filter
* chain. If this is the case we need to remove it since we are NO
* subrequest. But we need to keep in mind that the SUBREQ_CORE filter
* does not necessarily need to be the first filter in our chain. So we
* need to go through the chain. But we only need to walk up the chain
* until the proto_output_filters as the SUBREQ_CORE filter is below the
* protocol filters.
*/
ap_filter_t *next;
next = r->output_filters;
while (next && (next->frec != ap_subreq_core_filter_handle)
&& (next != r->proto_output_filters)) {
next = next->next;
}
if (next && (next->frec == ap_subreq_core_filter_handle)) {
ap_remove_output_filter(next);
}
}
}
AP_DECLARE(void) ap_internal_redirect(const char *new_uri, request_rec *r)
{
int access_status;
request_rec *new = internal_internal_redirect(new_uri, r);
AP_INTERNAL_REDIRECT(r->uri, new_uri);
/* ap_die was already called, if an error occured */
if (!new) {
return;
}
access_status = ap_run_quick_handler(new, 0); /* Not a look-up request */
if (access_status == DECLINED) {
access_status = ap_process_request_internal(new);
if (access_status == OK) {
access_status = ap_invoke_handler(new);
}
}
ap_die(access_status, new);
}
/* This function is designed for things like actions or CGI scripts, when
* using AddHandler, and you want to preserve the content type across
* an internal redirect.
*/
AP_DECLARE(void) ap_internal_redirect_handler(const char *new_uri, request_rec *r)
{
int access_status;
request_rec *new = internal_internal_redirect(new_uri, r);
/* ap_die was already called, if an error occured */
if (!new) {
return;
}
if (r->handler)
ap_set_content_type(new, r->content_type);
access_status = ap_process_request_internal(new);
if (access_status == OK) {
access_status = ap_invoke_handler(new);
}
ap_die(access_status, new);
}
AP_DECLARE(void) ap_allow_methods(request_rec *r, int reset, ...)
{
const char *method;
va_list methods;
/*
* Get rid of any current settings if requested; not just the
* well-known methods but any extensions as well.
*/
if (reset) {
ap_clear_method_list(r->allowed_methods);
}
va_start(methods, reset);
while ((method = va_arg(methods, const char *)) != NULL) {
ap_method_list_add(r->allowed_methods, method);
}
va_end(methods);
}
AP_DECLARE(void) ap_allow_standard_methods(request_rec *r, int reset, ...)
{
int method;
va_list methods;
apr_int64_t mask;
/*
* Get rid of any current settings if requested; not just the
* well-known methods but any extensions as well.
*/
if (reset) {
ap_clear_method_list(r->allowed_methods);
}
mask = 0;
va_start(methods, reset);
while ((method = va_arg(methods, int)) != -1) {
mask |= (AP_METHOD_BIT << method);
}
va_end(methods);
r->allowed_methods->method_mask |= mask;
}