url_utilities.h revision c407dc5cd9bdc5668497f21b26b09d988ab439de 
1// Copyright (c) 2010 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef NET_TOOLS_DUMP_CACHE_URL_UTILITIES_H_
6#define NET_TOOLS_DUMP_CACHE_URL_UTILITIES_H_
7
8#include <string>
9
10namespace net {
11
12namespace UrlUtilities {
13
14// Gets the host from an url, strips the port number as well if the url
15// has one.
16// For example: calling GetUrlHost(www.foo.com:8080/boo) returns www.foo.com
17static std::string GetUrlHost(const std::string& url) {
18  size_t b = url.find("//");
19  if (b == std::string::npos)
20    b = 0;
21  else
22    b += 2;
23  size_t next_slash = url.find_first_of('/', b);
24  size_t next_colon = url.find_first_of(':', b);
25  if (next_slash != std::string::npos
26      && next_colon != std::string::npos
27      && next_colon < next_slash) {
28    return std::string(url, b, next_colon - b);
29  }
30  if (next_slash == std::string::npos) {
31    if (next_colon != std::string::npos) {
32      return std::string(url, next_colon - b);
33    } else {
34      next_slash = url.size();
35    }
36  }
37  return std::string(url, b, next_slash - b);
38}
39
40// Gets the path portion of an url.
41// e.g   http://www.foo.com/path
42//       returns /path
43static std::string GetUrlPath(const std::string& url) {
44  size_t b = url.find("//");
45  if (b == std::string::npos)
46    b = 0;
47  else
48    b += 2;
49  b = url.find("/", b);
50  if (b == std::string::npos)
51    return "/";
52
53  size_t e = url.find("#", b+1);
54  if (e != std::string::npos)
55    return std::string(url, b, (e - b));
56  return std::string(url, b);
57}
58
59}  // namespace UrlUtilities
60
61}  // namespace net
62
63#endif  // NET_TOOLS_DUMP_CACHE_URL_UTILITIES_H_
64
65