| /* 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. |
| */ |
| |
| #include "apr_strings.h" |
| #include "ap_config.h" |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_protocol.h" |
| #include "http_log.h" |
| #include "util_script.h" |
| #include "http_main.h" |
| #include "http_request.h" |
| |
| #include "mod_core.h" |
| |
| #define ASIS_MAGIC_TYPE "httpd/send-as-is" |
| |
| static int asis_handler(request_rec *r) |
| { |
| apr_file_t *f; |
| apr_status_t rv; |
| const char *location; |
| |
| if (strcmp(r->handler, ASIS_MAGIC_TYPE) && strcmp(r->handler, "send-as-is")) { |
| return DECLINED; |
| } |
| |
| r->allowed |= (AP_METHOD_BIT << M_GET); |
| if (r->method_number != M_GET) { |
| return DECLINED; |
| } |
| |
| if (r->finfo.filetype == APR_NOFILE) { |
| ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01233) |
| "File does not exist: %s", r->filename); |
| return HTTP_NOT_FOUND; |
| } |
| |
| if ((rv = apr_file_open(&f, r->filename, APR_READ, |
| APR_OS_DEFAULT, r->pool)) != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01234) |
| "file permissions deny server access: %s", r->filename); |
| return HTTP_FORBIDDEN; |
| } |
| |
| ap_scan_script_header_err_ex(r, f, NULL, APLOG_MODULE_INDEX); |
| location = apr_table_get(r->headers_out, "Location"); |
| |
| if (location && location[0] == '/' && |
| ((r->status == HTTP_OK) || ap_is_HTTP_REDIRECT(r->status))) { |
| |
| apr_file_close(f); |
| |
| /* Internal redirect -- fake-up a pseudo-request */ |
| r->status = HTTP_OK; |
| |
| /* This redirect needs to be a GET no matter what the original |
| * method was. |
| */ |
| r->method = "GET"; |
| r->method_number = M_GET; |
| |
| ap_internal_redirect_handler(location, r); |
| return OK; |
| } |
| |
| if (!r->header_only) { |
| conn_rec *c = r->connection; |
| apr_bucket_brigade *bb; |
| apr_bucket *b; |
| apr_off_t pos = 0; |
| |
| rv = apr_file_seek(f, APR_CUR, &pos); |
| if (rv != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01235) |
| "mod_asis: failed to find end-of-headers position " |
| "for %s", r->filename); |
| apr_file_close(f); |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| bb = apr_brigade_create(r->pool, c->bucket_alloc); |
| apr_brigade_insert_file(bb, f, pos, r->finfo.size - pos, r->pool); |
| |
| b = apr_bucket_eos_create(c->bucket_alloc); |
| APR_BRIGADE_INSERT_TAIL(bb, b); |
| rv = ap_pass_brigade(r->output_filters, bb); |
| if (rv != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01236) |
| "mod_asis: ap_pass_brigade failed for file %s", r->filename); |
| return AP_FILTER_ERROR; |
| } |
| } |
| else { |
| apr_file_close(f); |
| } |
| |
| return OK; |
| } |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_hook_handler(asis_handler,NULL,NULL,APR_HOOK_MIDDLE); |
| } |
| |
| AP_DECLARE_MODULE(asis) = |
| { |
| STANDARD20_MODULE_STUFF, |
| NULL, /* create per-directory config structure */ |
| NULL, /* merge per-directory config structures */ |
| NULL, /* create per-server config structure */ |
| NULL, /* merge per-server config structures */ |
| NULL, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |