service_discovery_shared_client.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
1// Copyright 2013 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 "chrome/browser/local_discovery/service_discovery_shared_client.h"
6
7#include "content/public/browser/browser_thread.h"
8
9#if defined(OS_WIN)
10#include "base/files/file_path.h"
11#include "base/metrics/histogram.h"
12#include "base/path_service.h"
13#include "base/timer/elapsed_timer.h"
14#include "chrome/installer/util/browser_distribution.h"
15#include "chrome/installer/util/firewall_manager_win.h"
16#endif  // OS_WIN
17
18#if defined(OS_MACOSX)
19#include "chrome/browser/local_discovery/service_discovery_client_mac_factory.h"
20#endif
21
22#if defined(ENABLE_MDNS)
23#include "chrome/browser/local_discovery/service_discovery_client_mdns.h"
24#include "chrome/browser/local_discovery/service_discovery_client_utility.h"
25#endif  // ENABLE_MDNS
26
27namespace {
28
29#if defined(OS_WIN)
30
31bool g_is_firewall_ready = false;
32
33void ReportFirewallStats() {
34  base::FilePath exe_path;
35  if (!PathService::Get(base::FILE_EXE, &exe_path))
36    return;
37  base::ElapsedTimer timer;
38  scoped_ptr<installer::FirewallManager> manager =
39      installer::FirewallManager::Create(BrowserDistribution::GetDistribution(),
40                                         exe_path);
41  if (!manager)
42    return;
43  g_is_firewall_ready = manager->CanUseLocalPorts();
44  UMA_HISTOGRAM_TIMES("LocalDiscovery.FirewallAccessTime", timer.Elapsed());
45  UMA_HISTOGRAM_BOOLEAN("LocalDiscovery.IsFirewallReady", g_is_firewall_ready);
46}
47#endif  // OS_WIN
48
49}  // namespace
50
51
52namespace local_discovery {
53
54using content::BrowserThread;
55
56namespace {
57ServiceDiscoverySharedClient* g_service_discovery_client = NULL;
58}  // namespace
59
60ServiceDiscoverySharedClient::ServiceDiscoverySharedClient() {
61  DCHECK(!g_service_discovery_client);
62  g_service_discovery_client = this;
63}
64
65ServiceDiscoverySharedClient::~ServiceDiscoverySharedClient() {
66  DCHECK_EQ(g_service_discovery_client, this);
67  g_service_discovery_client = NULL;
68}
69
70#if defined(ENABLE_MDNS) || defined(OS_MACOSX)
71
72scoped_refptr<ServiceDiscoverySharedClient>
73    ServiceDiscoverySharedClient::GetInstance() {
74  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
75
76  if (g_service_discovery_client)
77    return g_service_discovery_client;
78
79#if defined(OS_MACOSX)
80  return ServiceDiscoveryClientMacFactory::CreateInstance();
81#else  // OS_MACOSX
82
83#if defined(OS_WIN)
84  static bool reported =
85      BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
86                              base::Bind(&ReportFirewallStats));
87  // TODO(vitalybuka): Switch to |ServiceDiscoveryClientMdns| after we find what
88  // to do with firewall for user-level installs. crbug.com/366408
89  if (!g_is_firewall_ready)
90    return new ServiceDiscoveryClientUtility();
91#endif  // OS_WIN
92
93  return new ServiceDiscoveryClientMdns();
94#endif // OS_MACOSX
95}
96
97#else
98
99scoped_refptr<ServiceDiscoverySharedClient>
100    ServiceDiscoverySharedClient::GetInstance() {
101  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
102  NOTIMPLEMENTED();
103  return NULL;
104}
105
106#endif  // ENABLE_MDNS
107
108}  // namespace local_discovery
109