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 #ifndef COMPONENTS_AUTOFILL_CONTENT_BROWSER_AUTOCHECKOUT_WHITELIST_MANAGER_H_ 6 #define COMPONENTS_AUTOFILL_CONTENT_BROWSER_AUTOCHECKOUT_WHITELIST_MANAGER_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/timer/timer.h" 12 #include "components/autofill/core/browser/autofill_metrics.h" 13 #include "net/base/backoff_entry.h" 14 #include "net/url_request/url_fetcher_delegate.h" 15 16 class GURL; 17 18 namespace content { 19 class BrowserContext; 20 } 21 22 namespace net { 23 class URLFetcher; 24 class URLRequestContextGetter; 25 } 26 27 namespace autofill { 28 namespace autocheckout { 29 30 // Downloads and caches the list of URL prefixes whitelisted for use with 31 // Autocheckout. 32 class WhitelistManager : public net::URLFetcherDelegate { 33 public: 34 WhitelistManager(); 35 virtual ~WhitelistManager(); 36 37 // Schedule a fetch of the Autocheckout whitelist file if it's not already 38 // loaded. This helps ensure that the whitelist will be available by the time 39 // the user navigates to a form on which Autocheckout should be enabled. 40 void Init(net::URLRequestContextGetter* context_getter); 41 42 // Matches the url with whitelist and return the matched url prefix. 43 // Returns empty string when it is not matched. 44 std::string GetMatchedURLPrefix(const GURL& url) const; 45 46 protected: 47 // Schedules a future call to TriggerDownload if one isn't already pending. 48 virtual void ScheduleDownload(base::TimeDelta interval); 49 50 // Start the download timer. It is called by ScheduleDownload(), and exposed 51 // as a separate method for mocking out in tests. 52 virtual void StartDownloadTimer(base::TimeDelta interval); 53 54 // Returns the |AutofillMetrics| instance that should be used for logging 55 // Autocheckout whitelist file downloading. 56 virtual const AutofillMetrics& GetMetricLogger() const; 57 58 // Timer callback indicating it's time to download whitelist from server. 59 void TriggerDownload(); 60 61 // Used by tests only. 62 void StopDownloadTimer(); 63 64 const std::vector<std::string>& url_prefixes() const { 65 return url_prefixes_; 66 } 67 68 private: 69 // Implements net::URLFetcherDelegate. 70 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; 71 72 // Parse whitelist data and build whitelist. 73 void BuildWhitelist(const std::string& data); 74 75 // A list of whitelisted url prefixes. 76 std::vector<std::string> url_prefixes_; 77 78 base::OneShotTimer<WhitelistManager> download_timer_; 79 80 // Indicates that the last triggered download hasn't resolved yet. 81 bool callback_is_pending_; 82 83 // The context for the request. 84 net::URLRequestContextGetter* context_getter_; // WEAK 85 86 // State of the kEnableExperimentalFormFilling flag. 87 const bool experimental_form_filling_enabled_; 88 89 // State of the kBypassAutocheckoutWhitelist flag. 90 const bool bypass_autocheckout_whitelist_; 91 92 // Exponential back-off delay to retry a failed download. 93 net::BackoffEntry retry_entry_; 94 95 // Logger for UMA metrics. 96 AutofillMetrics metrics_logger_; 97 98 // When the whitelist download started. Used to track download latency. 99 base::Time request_started_timestamp_; 100 101 // The request object. 102 scoped_ptr<net::URLFetcher> request_; 103 104 DISALLOW_COPY_AND_ASSIGN(WhitelistManager); 105 }; 106 107 } // namespace autocheckout 108 } // namespace autofill 109 110 #endif // COMPONENTS_AUTOFILL_CONTENT_BROWSER_AUTOCHECKOUT_WHITELIST_MANAGER_H_ 111 112