File: download_http_utils.cc

package info (click to toggle)
chromium 139.0.7258.127-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 6,122,068 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (40 lines) | stat: -rw-r--r-- 1,167 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/download/network/download_http_utils.h"

#include "net/http/http_byte_range.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_util.h"

namespace download {

std::optional<net::HttpByteRange> ParseRangeHeader(
    const net::HttpRequestHeaders& request_headers) {
  std::vector<net::HttpByteRange> byte_ranges;
  std::optional<std::string> range_header =
      request_headers.GetHeader(net::HttpRequestHeaders::kRange);
  if (!range_header) {
    return std::nullopt;
  }

  bool success =
      net::HttpUtil::ParseRangeHeader(range_header.value(), &byte_ranges);

  // Multiple ranges are not supported.
  if (!success || byte_ranges.empty() || byte_ranges.size() > 1)
    return std::nullopt;

  return byte_ranges.front();
}

bool ValidateRequestHeaders(const net::HttpRequestHeaders& request_headers) {
  if (request_headers.HasHeader(net::HttpRequestHeaders::kRange)) {
    return ParseRangeHeader(request_headers).has_value();
  }

  return true;
}

}  // namespace download