| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |
| #define CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "components/pref_registry/pref_registry_syncable.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "mojo/public/cpp/bindings/receiver.h" |
| #include "services/network/public/cpp/network_connection_tracker.h" |
| #include "services/network/public/mojom/host_resolver.mojom.h" |
| #include "url/gurl.h" |
| |
| namespace network { |
| class SimpleURLLoader; |
| } |
| |
| class PrefRegistrySimple; |
| |
| // This object is responsible for determining whether the user is on a network |
| // that redirects requests for intranet hostnames to another site, and if so, |
| // tracking what that site is (including across restarts via a pref). For |
| // example, the user's ISP might convert a request for "http://query/" into a |
| // 302 redirect to "http://isp.domain.com/search?q=query" in order to display |
| // custom pages on typos, nonexistent sites, etc. |
| // |
| // We use this information in the OmniboxNavigationObserver to avoid displaying |
| // infobars for these cases. Our infobars are designed to allow users to get at |
| // intranet sites when they were erroneously taken to a search result page. In |
| // these cases, however, users would be shown a confusing and useless infobar |
| // when they really did mean to do a search. |
| // |
| // Consumers should call RedirectOrigin(), which is guaranteed to synchronously |
| // return a value at all times (even during startup or in unittest mode). If no |
| // redirection is in place, the returned GURL will be empty. |
| class IntranetRedirectDetector |
| : public network::NetworkConnectionTracker::NetworkConnectionObserver, |
| public network::mojom::DnsConfigChangeManagerClient { |
| public: |
| // Only the main browser process loop should call this, when setting up |
| // g_browser_process->intranet_redirect_detector_. No code other than the |
| // IntranetRedirectDetector itself should actually use |
| // g_browser_process->intranet_redirect_detector() (which shouldn't be hard, |
| // since there aren't useful public functions on this object for consumers to |
| // access anyway). |
| IntranetRedirectDetector(); |
| ~IntranetRedirectDetector() override; |
| |
| // Returns the current redirect origin. This will be empty if no redirection |
| // is in place. |
| static GURL RedirectOrigin(); |
| |
| static void RegisterPrefs(PrefRegistrySimple* registry); |
| |
| private: |
| // Called on connection or config change to ensure detector runs again (after |
| // a delay). |
| void Restart(); |
| |
| // Called when the startup or restart sleep has finished. Runs any pending |
| // fetch. |
| void FinishSleep(); |
| |
| // Invoked from SimpleURLLoader after download is complete. |
| void OnSimpleLoaderComplete(network::SimpleURLLoader* source, |
| std::unique_ptr<std::string> response_body); |
| |
| // NetworkConnectionTracker::NetworkConnectionObserver |
| void OnConnectionChanged(network::mojom::ConnectionType type) override; |
| |
| // network::mojom::DnsConfigChangeManagerClient |
| void OnDnsConfigChanged() override; |
| |
| void SetupDnsConfigClient(); |
| void OnDnsConfigClientConnectionError(); |
| |
| // Whether the IntranetRedirectDetector is enabled, or, through policy, |
| // disabled. |
| bool IsEnabledByPolicy(); |
| |
| GURL redirect_origin_; |
| std::map<network::SimpleURLLoader*, std::unique_ptr<network::SimpleURLLoader>> |
| simple_loaders_; |
| std::vector<GURL> resulting_origins_; |
| bool in_sleep_ = true; // True if we're in the seven-second "no fetching" |
| // period that begins at browser start, or the |
| // one-second "no fetching" period that begins after |
| // network switches. |
| mojo::Receiver<network::mojom::DnsConfigChangeManagerClient> |
| dns_config_client_receiver_{this}; |
| base::WeakPtrFactory<IntranetRedirectDetector> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(IntranetRedirectDetector); |
| }; |
| |
| #endif // CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_ |