components/content_settings/core/browser/content_settings_utils.h

   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 COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_UTILS_H_
   6 #define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_UTILS_H_
   7
   8 #include <string>
   9 #include <utility>
  10
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "components/content_settings/core/common/content_settings.h"
  14 #include "components/content_settings/core/common/content_settings_pattern.h"
  15 #include "components/content_settings/core/common/content_settings_types.h"
  16
  17 namespace base {
  18 class Value;
  19 }
  20
  21 class GURL;
  22 class HostContentSettingsMap;
  23
  24 namespace content_settings {
  25
  26 class ProviderInterface;
  27 class RuleIterator;
  28
  29 typedef std::pair<ContentSettingsPattern, ContentSettingsPattern> PatternPair;
  30
  31 // These constants are copied from extensions/common/extension_constants.h and
  32 // content/public/common/url_constants.h to avoid complicated dependencies.
  33 // TODO(vabr): Get these constants through the ContentSettingsClient.
  34 const char kChromeDevToolsScheme[] = "chrome-devtools";
  35 const char kChromeUIScheme[] = "chrome";
  36
  37 #if defined(ENABLE_EXTENSIONS)
  38 const char kExtensionScheme[] = "chrome-extension";
  39 #endif
  40
  41 std::string ContentSettingToString(ContentSetting setting);
  42
  43 ContentSetting ContentSettingFromString(const std::string& name);
  44
  45 // Converts |Value| to |ContentSetting|.
  46 ContentSetting ValueToContentSetting(const base::Value* value);
  47
  48 // Converts a |Value| to a |ContentSetting|. Returns true if |value| encodes
  49 // a valid content setting, false otherwise. Note that |CONTENT_SETTING_DEFAULT|
  50 // is encoded as a NULL value, so it is not allowed as an integer value.
  51 bool ParseContentSettingValue(const base::Value* value,
  52                               ContentSetting* setting);
  53
  54 PatternPair ParsePatternString(const std::string& pattern_str);
  55
  56 std::string CreatePatternString(
  57     const ContentSettingsPattern& item_pattern,
  58     const ContentSettingsPattern& top_level_frame_pattern);
  59
  60 // Caller takes the ownership of the returned |base::Value*|.
  61 base::Value* GetContentSettingValueAndPatterns(
  62     RuleIterator* rule_iterator,
  63     const GURL& primary_url,
  64     const GURL& secondary_url,
  65     ContentSettingsPattern* primary_pattern,
  66     ContentSettingsPattern* secondary_pattern);
  67
  68 // Returns a |base::Value*| representation of |setting| if |setting| is
  69 // a valid content setting. Otherwise, returns a nullptr.
  70 scoped_ptr<base::Value> ContentSettingToValue(ContentSetting setting);
  71
  72 base::Value* GetContentSettingValueAndPatterns(
  73     const ProviderInterface* provider,
  74     const GURL& primary_url,
  75     const GURL& secondary_url,
  76     ContentSettingsType content_type,
  77     const std::string& resource_identifier,
  78     bool include_incognito,
  79     ContentSettingsPattern* primary_pattern,
  80     ContentSettingsPattern* secondary_pattern);
  81
  82 // Populates |rules| with content setting rules for content types that are
  83 // handled by the renderer.
  84 void GetRendererContentSettingRules(const HostContentSettingsMap* map,
  85                                     RendererContentSettingRules* rules);
  86
  87 }  // namespace content_settings
  88
  89 #endif  // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_UTILS_H_