1 // Copyright (c) 2012 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 CHROME_FRAME_POLICY_SETTINGS_H_ 6 #define CHROME_FRAME_POLICY_SETTINGS_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/basictypes.h" 12 #include "base/command_line.h" 13 #include "base/memory/singleton.h" 14 15 // A simple class that reads and caches policy settings for Chrome Frame. 16 // TODO(tommi): Support refreshing when new settings are pushed. 17 // TODO(tommi): Use Chrome's classes for this (and the notification service). 18 class PolicySettings { 19 public: 20 enum RendererForUrl { 21 RENDERER_NOT_SPECIFIED = -1, 22 RENDER_IN_HOST, 23 RENDER_IN_CHROME_FRAME, 24 }; 25 26 enum SkipMetadataCheck { 27 SKIP_METADATA_CHECK_NOT_SPECIFIED = -1, 28 SKIP_METADATA_CHECK_NO, 29 SKIP_METADATA_CHECK_YES, 30 }; 31 32 static PolicySettings* GetInstance(); 33 default_renderer()34 RendererForUrl default_renderer() const { 35 return default_renderer_; 36 } 37 skip_metadata_check()38 SkipMetadataCheck skip_metadata_check() const { 39 return skip_metadata_check_; 40 } 41 42 RendererForUrl GetRendererForUrl(const wchar_t* url); 43 44 RendererForUrl GetRendererForContentType(const wchar_t* content_type); 45 46 // Returns the policy-configured Chrome app locale, or an empty string if none 47 // is configured. ApplicationLocale()48 const std::wstring& ApplicationLocale() const { 49 return application_locale_; 50 } 51 52 // Contains additional parameters that can optionally be configured for the 53 // current user via the policy settings. The program part of this command 54 // line object must not be used when appending to another command line. 55 const CommandLine& AdditionalLaunchParameters() const; 56 57 // Returns true if the Chrome Frame turndown prompt should be suppressed. suppress_turndown_prompt()58 bool suppress_turndown_prompt() const { 59 return suppress_turndown_prompt_; 60 } 61 62 // Helper functions for reading settings from the registry 63 static void ReadUrlSettings(RendererForUrl* default_renderer, 64 std::vector<std::wstring>* renderer_exclusion_list); 65 static void ReadMetadataCheckSettings(SkipMetadataCheck* skip_metadata_check); 66 static void ReadContentTypeSetting( 67 std::vector<std::wstring>* content_type_list); 68 static void ReadStringSetting(const char* value_name, std::wstring* value); 69 static void ReadBoolSetting(const char* value_name, bool* value); 70 71 protected: PolicySettings()72 PolicySettings() 73 : default_renderer_(RENDERER_NOT_SPECIFIED), 74 skip_metadata_check_(SKIP_METADATA_CHECK_NOT_SPECIFIED), 75 additional_launch_parameters_(CommandLine::NO_PROGRAM), 76 suppress_turndown_prompt_(false) { 77 RefreshFromRegistry(); 78 } 79 ~PolicySettings()80 ~PolicySettings() { 81 } 82 83 // Protected for now since the class is not thread safe. 84 void RefreshFromRegistry(); 85 86 protected: 87 RendererForUrl default_renderer_; 88 SkipMetadataCheck skip_metadata_check_; 89 std::vector<std::wstring> renderer_exclusion_list_; 90 std::vector<std::wstring> content_type_list_; 91 std::wstring application_locale_; 92 CommandLine additional_launch_parameters_; 93 bool suppress_turndown_prompt_; 94 95 private: 96 // This ensures no construction is possible outside of the class itself. 97 friend struct DefaultSingletonTraits<PolicySettings>; 98 DISALLOW_COPY_AND_ASSIGN(PolicySettings); 99 }; 100 101 #endif // CHROME_FRAME_POLICY_SETTINGS_H_ 102