129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "apr_strings.h"
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#include "ap_config.h"
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#include "httpd.h"
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#include "http_config.h"
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#include "http_protocol.h"
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#include "http_log.h"
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#include "util_script.h"
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#include "http_main.h"
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#include "http_request.h"
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#include "mod_core.h"
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#define ASIS_MAGIC_TYPE "httpd/send-as-is"
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static int asis_handler(request_rec *r)
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{
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apr_file_t *f;
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apr_status_t rv;
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const char *location;
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if (strcmp(r->handler, ASIS_MAGIC_TYPE) && strcmp(r->handler, "send-as-is")) {
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return DECLINED;
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}
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r->allowed |= (AP_METHOD_BIT << M_GET);
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if (r->method_number != M_GET) {
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return DECLINED;
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}
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if (r->finfo.filetype == APR_NOFILE) {
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ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01233)
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"File does not exist: %s", r->filename);
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return HTTP_NOT_FOUND;
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}
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if ((rv = apr_file_open(&f, r->filename, APR_READ,
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APR_OS_DEFAULT, r->pool)) != APR_SUCCESS) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01234)
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"file permissions deny server access: %s", r->filename);
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return HTTP_FORBIDDEN;
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}
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ap_scan_script_header_err_ex(r, f, NULL, APLOG_MODULE_INDEX);
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location = apr_table_get(r->headers_out, "Location");
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if (location && location[0] == '/' &&
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((r->status == HTTP_OK) || ap_is_HTTP_REDIRECT(r->status))) {
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apr_file_close(f);
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/* Internal redirect -- fake-up a pseudo-request */
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r->status = HTTP_OK;
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/* This redirect needs to be a GET no matter what the original
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* method was.
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*/
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r->method = "GET";
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r->method_number = M_GET;
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ap_internal_redirect_handler(location, r);
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return OK;
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}
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if (!r->header_only) {
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conn_rec *c = r->connection;
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apr_bucket_brigade *bb;
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apr_bucket *b;
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apr_off_t pos = 0;
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rv = apr_file_seek(f, APR_CUR, &pos);
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if (rv != APR_SUCCESS) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01235)
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"mod_asis: failed to find end-of-headers position "
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"for %s", r->filename);
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apr_file_close(f);
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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bb = apr_brigade_create(r->pool, c->bucket_alloc);
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apr_brigade_insert_file(bb, f, pos, r->finfo.size - pos, r->pool);
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b = apr_bucket_eos_create(c->bucket_alloc);
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APR_BRIGADE_INSERT_TAIL(bb, b);
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rv = ap_pass_brigade(r->output_filters, bb);
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if (rv != APR_SUCCESS) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01236)
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"mod_asis: ap_pass_brigade failed for file %s", r->filename);
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return AP_FILTER_ERROR;
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}
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}
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else {
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apr_file_close(f);
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}
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return OK;
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}
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static void register_hooks(apr_pool_t *p)
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{
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ap_hook_handler(asis_handler,NULL,NULL,APR_HOOK_MIDDLE);
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}
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AP_DECLARE_MODULE(asis) =
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{
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STANDARD20_MODULE_STUFF,
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NULL, /* create per-directory config structure */
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NULL, /* merge per-directory config structures */
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NULL, /* create per-server config structure */
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NULL, /* merge per-server config structures */
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NULL, /* command apr_table_t */
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register_hooks /* register hooks */
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};
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