host_port_pair.cc revision 0529e5d033099cbfc42635f6f6183833b09dff6e 
1// Copyright (c) 2012 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#include "net/base/host_port_pair.h"
6
7#include "base/logging.h"
8#include "base/strings/string_number_conversions.h"
9#include "base/strings/string_split.h"
10#include "base/strings/string_util.h"
11#include "base/strings/stringprintf.h"
12#include "net/base/ip_endpoint.h"
13#include "url/gurl.h"
14
15namespace net {
16
17HostPortPair::HostPortPair() : port_(0) {}
18HostPortPair::HostPortPair(const std::string& in_host, uint16 in_port)
19    : host_(in_host), port_(in_port) {}
20
21// static
22HostPortPair HostPortPair::FromURL(const GURL& url) {
23  return HostPortPair(url.HostNoBrackets(), url.EffectiveIntPort());
24}
25
26// static
27HostPortPair HostPortPair::FromIPEndPoint(const IPEndPoint& ipe) {
28  return HostPortPair(ipe.ToStringWithoutPort(), ipe.port());
29}
30
31HostPortPair HostPortPair::FromString(const std::string& str) {
32  std::vector<std::string> key_port;
33  base::SplitString(str, ':', &key_port);
34  if (key_port.size() != 2)
35    return HostPortPair();
36  int port;
37  if (!base::StringToInt(key_port[1], &port))
38    return HostPortPair();
39  DCHECK_LT(port, 1 << 16);
40  HostPortPair host_port_pair;
41  host_port_pair.set_host(key_port[0]);
42  host_port_pair.set_port(port);
43  return host_port_pair;
44}
45
46std::string HostPortPair::ToString() const {
47  return base::StringPrintf("%s:%u", HostForURL().c_str(), port_);
48}
49
50std::string HostPortPair::HostForURL() const {
51  // TODO(rtenneti): Add support for |host| to have '\0'.
52  if (host_.find('\0') != std::string::npos) {
53    std::string host_for_log(host_);
54    size_t nullpos;
55    while ((nullpos = host_for_log.find('\0')) != std::string::npos) {
56      host_for_log.replace(nullpos, 1, "%00");
57    }
58    LOG(DFATAL) << "Host has a null char: " << host_for_log;
59  }
60  // Check to see if the host is an IPv6 address.  If so, added brackets.
61  if (host_.find(':') != std::string::npos) {
62    DCHECK_NE(host_[0], '[');
63    return base::StringPrintf("[%s]", host_.c_str());
64  }
65
66  return host_;
67}
68
69}  // namespace net
70