1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 #include "http_protocol.h"
22 #include "http_core.h"
24 #include "util_charset.h"
28 /* used for reading input blocks */
29 #define READ_BLOCKSIZE 2048
32 AP_DECLARE(int) ap_xml_parse_input(request_rec * r, apr_xml_doc **pdoc)
34 apr_xml_parser *parser;
35 apr_bucket_brigade *brigade;
39 apr_size_t total_read = 0;
40 apr_size_t limit_xml_body = ap_get_limit_xml_body(r);
41 int result = HTTP_BAD_REQUEST;
43 parser = apr_xml_parser_create(r->pool);
44 brigade = apr_brigade_create(r->pool, r->connection->bucket_alloc);
52 /* read the body, stuffing it into the parser */
53 status = ap_get_brigade(r->input_filters, brigade,
54 AP_MODE_READBYTES, APR_BLOCK_READ,
57 if (status != APR_SUCCESS) {
61 for (bucket = APR_BRIGADE_FIRST(brigade);
62 bucket != APR_BRIGADE_SENTINEL(brigade);
63 bucket = APR_BUCKET_NEXT(bucket))
68 if (APR_BUCKET_IS_EOS(bucket)) {
73 if (APR_BUCKET_IS_METADATA(bucket)) {
77 status = apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ);
78 if (status != APR_SUCCESS) {
83 if (limit_xml_body && total_read > limit_xml_body) {
84 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
85 "XML request body is larger than the configured "
86 "limit of %lu", (unsigned long)limit_xml_body);
87 result = HTTP_REQUEST_ENTITY_TOO_LARGE;
91 status = apr_xml_parser_feed(parser, data, len);
97 apr_brigade_cleanup(brigade);
100 apr_brigade_destroy(brigade);
102 /* tell the parser that we're done */
103 status = apr_xml_parser_done(parser, pdoc);
105 /* Some parsers are stupid and return an error on blank documents. */
110 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
111 "XML parser error (at end). status=%d", status);
112 return HTTP_BAD_REQUEST;
115 #if APR_CHARSET_EBCDIC
116 apr_xml_parser_convert_doc(r->pool, *pdoc, ap_hdrs_from_ascii);
121 (void) apr_xml_parser_geterror(parser, errbuf, sizeof(errbuf));
122 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
123 "XML Parser Error: %s", errbuf);
128 /* make sure the parser is terminated */
129 (void) apr_xml_parser_done(parser, NULL);
131 apr_brigade_destroy(brigade);
133 /* Apache will supply a default error, plus the error log above. */