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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ | 5 #ifndef CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |
6 #define CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ | 6 #define CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "content/common/net/url_fetcher.h" | 13 #include "content/public/common/url_fetcher_delegate.h" |
14 #include "content/public/browser/notification_observer.h" | 14 #include "content/public/browser/notification_observer.h" |
15 #include "content/public/browser/notification_registrar.h" | 15 #include "content/public/browser/notification_registrar.h" |
16 #include "googleurl/src/gurl.h" | 16 #include "googleurl/src/gurl.h" |
17 #include "net/base/host_resolver_proc.h" | 17 #include "net/base/host_resolver_proc.h" |
18 #include "net/base/network_change_notifier.h" | 18 #include "net/base/network_change_notifier.h" |
19 | 19 |
20 class PrefService; | 20 class PrefService; |
21 | 21 |
22 // This object is responsible for determining whether the user is on a network | 22 // This object is responsible for determining whether the user is on a network |
23 // that redirects requests for intranet hostnames to another site, and if so, | 23 // that redirects requests for intranet hostnames to another site, and if so, |
24 // tracking what that site is (including across restarts via a pref). For | 24 // tracking what that site is (including across restarts via a pref). For |
25 // example, the user's ISP might convert a request for "http://query/" into a | 25 // example, the user's ISP might convert a request for "http://query/" into a |
26 // 302 redirect to "http://isp.domain.com/search?q=query" in order to display | 26 // 302 redirect to "http://isp.domain.com/search?q=query" in order to display |
27 // custom pages on typos, nonexistent sites, etc. | 27 // custom pages on typos, nonexistent sites, etc. |
28 // | 28 // |
29 // We use this information in the AlternateNavURLFetcher to avoid displaying | 29 // We use this information in the AlternateNavURLFetcher to avoid displaying |
30 // infobars for these cases. Our infobars are designed to allow users to get at | 30 // infobars for these cases. Our infobars are designed to allow users to get at |
31 // intranet sites when they were erroneously taken to a search result page. In | 31 // intranet sites when they were erroneously taken to a search result page. In |
32 // these cases, however, users would be shown a confusing and useless infobar | 32 // these cases, however, users would be shown a confusing and useless infobar |
33 // when they really did mean to do a search. | 33 // when they really did mean to do a search. |
34 // | 34 // |
35 // Consumers should call RedirectOrigin(), which is guaranteed to synchronously | 35 // Consumers should call RedirectOrigin(), which is guaranteed to synchronously |
36 // return a value at all times (even during startup or in unittest mode). If no | 36 // return a value at all times (even during startup or in unittest mode). If no |
37 // redirection is in place, the returned GURL will be empty. | 37 // redirection is in place, the returned GURL will be empty. |
38 class IntranetRedirectDetector | 38 class IntranetRedirectDetector |
39 : public URLFetcher::Delegate, | 39 : public content::URLFetcherDelegate, |
40 public net::NetworkChangeNotifier::IPAddressObserver { | 40 public net::NetworkChangeNotifier::IPAddressObserver { |
41 public: | 41 public: |
42 // Only the main browser process loop should call this, when setting up | 42 // Only the main browser process loop should call this, when setting up |
43 // g_browser_process->intranet_redirect_detector_. No code other than the | 43 // g_browser_process->intranet_redirect_detector_. No code other than the |
44 // IntranetRedirectDetector itself should actually use | 44 // IntranetRedirectDetector itself should actually use |
45 // g_browser_process->intranet_redirect_detector() (which shouldn't be hard, | 45 // g_browser_process->intranet_redirect_detector() (which shouldn't be hard, |
46 // since there aren't useful public functions on this object for consumers to | 46 // since there aren't useful public functions on this object for consumers to |
47 // access anyway). | 47 // access anyway). |
48 IntranetRedirectDetector(); | 48 IntranetRedirectDetector(); |
49 virtual ~IntranetRedirectDetector(); | 49 virtual ~IntranetRedirectDetector(); |
50 | 50 |
51 // Returns the current redirect origin. This will be empty if no redirection | 51 // Returns the current redirect origin. This will be empty if no redirection |
52 // is in place. | 52 // is in place. |
53 static GURL RedirectOrigin(); | 53 static GURL RedirectOrigin(); |
54 | 54 |
55 static void RegisterPrefs(PrefService* prefs); | 55 static void RegisterPrefs(PrefService* prefs); |
56 | 56 |
57 // The number of characters the fetcher will use for its randomly-generated | 57 // The number of characters the fetcher will use for its randomly-generated |
58 // hostnames. | 58 // hostnames. |
59 static const size_t kNumCharsInHostnames; | 59 static const size_t kNumCharsInHostnames; |
60 | 60 |
61 private: | 61 private: |
62 typedef std::set<URLFetcher*> Fetchers; | 62 typedef std::set<URLFetcher*> Fetchers; |
63 | 63 |
64 // Called when the seven second startup sleep or the one second network | 64 // Called when the seven second startup sleep or the one second network |
65 // switch sleep has finished. Runs any pending fetch. | 65 // switch sleep has finished. Runs any pending fetch. |
66 void FinishSleep(); | 66 void FinishSleep(); |
67 | 67 |
68 // URLFetcher::Delegate | 68 // content::URLFetcherDelegate |
69 virtual void OnURLFetchComplete(const URLFetcher* source, | 69 virtual void OnURLFetchComplete(const URLFetcher* source); |
70 const GURL& url, | |
71 const net::URLRequestStatus& status, | |
72 int response_code, | |
73 const net::ResponseCookies& cookies, | |
74 const std::string& data); | |
75 | 70 |
76 // NetworkChangeNotifier::IPAddressObserver | 71 // NetworkChangeNotifier::IPAddressObserver |
77 virtual void OnIPAddressChanged(); | 72 virtual void OnIPAddressChanged(); |
78 | 73 |
79 GURL redirect_origin_; | 74 GURL redirect_origin_; |
80 ScopedRunnableMethodFactory<IntranetRedirectDetector> fetcher_factory_; | 75 ScopedRunnableMethodFactory<IntranetRedirectDetector> fetcher_factory_; |
81 Fetchers fetchers_; | 76 Fetchers fetchers_; |
82 std::vector<GURL> resulting_origins_; | 77 std::vector<GURL> resulting_origins_; |
83 bool in_sleep_; // True if we're in the seven-second "no fetching" period | 78 bool in_sleep_; // True if we're in the seven-second "no fetching" period |
84 // that begins at browser start, or the one-second "no | 79 // that begins at browser start, or the one-second "no |
85 // fetching" period that begins after network switches. | 80 // fetching" period that begins after network switches. |
86 | 81 |
87 DISALLOW_COPY_AND_ASSIGN(IntranetRedirectDetector); | 82 DISALLOW_COPY_AND_ASSIGN(IntranetRedirectDetector); |
88 }; | 83 }; |
89 | 84 |
90 // This is for use in testing, where we don't want our fetches to actually go | 85 // This is for use in testing, where we don't want our fetches to actually go |
91 // over the network. It captures the requests and causes them to fail. | 86 // over the network. It captures the requests and causes them to fail. |
92 class IntranetRedirectHostResolverProc : public net::HostResolverProc { | 87 class IntranetRedirectHostResolverProc : public net::HostResolverProc { |
93 public: | 88 public: |
94 explicit IntranetRedirectHostResolverProc(net::HostResolverProc* previous); | 89 explicit IntranetRedirectHostResolverProc(net::HostResolverProc* previous); |
95 | 90 |
96 virtual int Resolve(const std::string& host, | 91 virtual int Resolve(const std::string& host, |
97 net::AddressFamily address_family, | 92 net::AddressFamily address_family, |
98 net::HostResolverFlags host_resolver_flags, | 93 net::HostResolverFlags host_resolver_flags, |
99 net::AddressList* addrlist, | 94 net::AddressList* addrlist, |
100 int* os_error); | 95 int* os_error); |
101 }; | 96 }; |
102 | 97 |
103 #endif // CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ | 98 #endif // CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |
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