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      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_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_UTILS_H_
      6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_UTILS_H_
      7 
      8 #include <string>
      9 #include <utility>
     10 
     11 #include "components/content_settings/core/common/content_settings.h"
     12 #include "components/content_settings/core/common/content_settings_pattern.h"
     13 #include "components/content_settings/core/common/content_settings_types.h"
     14 
     15 namespace base {
     16 class Value;
     17 }
     18 
     19 class GURL;
     20 class HostContentSettingsMap;
     21 
     22 namespace content_settings {
     23 
     24 class ProviderInterface;
     25 class RuleIterator;
     26 
     27 typedef std::pair<ContentSettingsPattern, ContentSettingsPattern> PatternPair;
     28 
     29 std::string GetTypeName(ContentSettingsType type);
     30 
     31 bool GetTypeFromName(const std::string& name,
     32                      ContentSettingsType* return_setting);
     33 
     34 std::string ContentSettingToString(ContentSetting setting);
     35 
     36 ContentSetting ContentSettingFromString(const std::string& name);
     37 
     38 // Converts |Value| to |ContentSetting|.
     39 ContentSetting ValueToContentSetting(const base::Value* value);
     40 
     41 // Converts a |Value| to a |ContentSetting|. Returns true if |value| encodes
     42 // a valid content setting, false otherwise. Note that |CONTENT_SETTING_DEFAULT|
     43 // is encoded as a NULL value, so it is not allowed as an integer value.
     44 bool ParseContentSettingValue(const base::Value* value,
     45                               ContentSetting* setting);
     46 
     47 PatternPair ParsePatternString(const std::string& pattern_str);
     48 
     49 std::string CreatePatternString(
     50     const ContentSettingsPattern& item_pattern,
     51     const ContentSettingsPattern& top_level_frame_pattern);
     52 
     53 // Caller takes the ownership of the returned |base::Value*|.
     54 base::Value* GetContentSettingValueAndPatterns(
     55     RuleIterator* rule_iterator,
     56     const GURL& primary_url,
     57     const GURL& secondary_url,
     58     ContentSettingsPattern* primary_pattern,
     59     ContentSettingsPattern* secondary_pattern);
     60 
     61 base::Value* GetContentSettingValueAndPatterns(
     62     const ProviderInterface* provider,
     63     const GURL& primary_url,
     64     const GURL& secondary_url,
     65     ContentSettingsType content_type,
     66     const std::string& resource_identifier,
     67     bool include_incognito,
     68     ContentSettingsPattern* primary_pattern,
     69     ContentSettingsPattern* secondary_pattern);
     70 
     71 base::Value* GetContentSettingValue(
     72     const ProviderInterface* provider,
     73     const GURL& primary_url,
     74     const GURL& secondary_url,
     75     ContentSettingsType content_type,
     76     const std::string& resource_identifier,
     77     bool include_incognito);
     78 
     79 ContentSetting GetContentSetting(
     80     const ProviderInterface* provider,
     81     const GURL& primary_url,
     82     const GURL& secondary_url,
     83     ContentSettingsType content_type,
     84     const std::string& resource_identifier,
     85     bool include_incognito);
     86 
     87 // Populates |rules| with content setting rules for content types that are
     88 // handled by the renderer.
     89 void GetRendererContentSettingRules(const HostContentSettingsMap* map,
     90                                     RendererContentSettingRules* rules);
     91 
     92 }  // namespace content_settings
     93 
     94 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_UTILS_H_
     95