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      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 // Generates fingerprints appropriate for sending to the Google Wallet Risk
      6 // engine, which is the fraud-detection engine used for purchases powered by
      7 // Google Wallet.  A fingerprint encapsulates machine and user characteristics.
      8 // Because much of the data is privacy-sensitive, fingerprints should only be
      9 // generated with explicit user consent, including consent to gather geolocation
     10 // data.
     11 
     12 #ifndef COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_
     13 #define COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_
     14 
     15 #include <string>
     16 
     17 #include "base/basictypes.h"
     18 #include "base/callback_forward.h"
     19 #include "base/memory/scoped_ptr.h"
     20 #include "components/autofill/core/browser/autofill_manager_delegate.h"
     21 
     22 class PrefService;
     23 
     24 namespace base {
     25 class Time;
     26 }
     27 
     28 namespace content {
     29 class WebContents;
     30 }
     31 
     32 namespace gfx {
     33 class Rect;
     34 }
     35 
     36 namespace WebKit {
     37 struct WebScreenInfo;
     38 }
     39 
     40 namespace autofill {
     41 namespace risk {
     42 
     43 class Fingerprint;
     44 
     45 // Asynchronously calls |callback| with statistics that, collectively, provide a
     46 // unique fingerprint for this (machine, user) pair, used for fraud prevention.
     47 // |obfuscated_gaia_id| is an obfuscated user id for Google's authentication
     48 // system. |window_bounds| should be the bounds of the containing Chrome window.
     49 // |web_contents| should be the host for the page the user is interacting with.
     50 // |version| is the version number of the application. |charset| is the default
     51 // character set. |accept_languages| is the Accept-Languages setting.
     52 // |install_time| is the absolute time of installation.
     53 void GetFingerprint(
     54     uint64 obfuscated_gaia_id,
     55     const gfx::Rect& window_bounds,
     56     const content::WebContents& web_contents,
     57     const std::string& version,
     58     const std::string& charset,
     59     const std::string& accept_languages,
     60     const base::Time& install_time,
     61     DialogType dialog_type,
     62     const std::string& app_locale,
     63     const base::Callback<void(scoped_ptr<Fingerprint>)>& callback);
     64 
     65 }  // namespace risk
     66 }  // namespace autofill
     67 
     68 #endif  // COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_
     69