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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 "chrome/common/content_settings.h"
     12 #include "chrome/common/content_settings_pattern.h"
     13 #include "chrome/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 // Converts |Value| to |ContentSetting|.
     32 ContentSetting ValueToContentSetting(const base::Value* value);
     33 
     34 // Converts a |Value| to a |ContentSetting|. Returns true if |value| encodes
     35 // a valid content setting, false otherwise. Note that |CONTENT_SETTING_DEFAULT|
     36 // is encoded as a NULL value, so it is not allowed as an integer value.
     37 bool ParseContentSettingValue(const base::Value* value,
     38                               ContentSetting* setting);
     39 
     40 PatternPair ParsePatternString(const std::string& pattern_str);
     41 
     42 std::string CreatePatternString(
     43     const ContentSettingsPattern& item_pattern,
     44     const ContentSettingsPattern& top_level_frame_pattern);
     45 
     46 // Caller takes the ownership of the returned |base::Value*|.
     47 base::Value* GetContentSettingValueAndPatterns(
     48     RuleIterator* rule_iterator,
     49     const GURL& primary_url,
     50     const GURL& secondary_url,
     51     ContentSettingsPattern* primary_pattern,
     52     ContentSettingsPattern* secondary_pattern);
     53 
     54 base::Value* GetContentSettingValueAndPatterns(
     55     const ProviderInterface* provider,
     56     const GURL& primary_url,
     57     const GURL& secondary_url,
     58     ContentSettingsType content_type,
     59     const std::string& resource_identifier,
     60     bool include_incognito,
     61     ContentSettingsPattern* primary_pattern,
     62     ContentSettingsPattern* secondary_pattern);
     63 
     64 base::Value* GetContentSettingValue(
     65     const ProviderInterface* provider,
     66     const GURL& primary_url,
     67     const GURL& secondary_url,
     68     ContentSettingsType content_type,
     69     const std::string& resource_identifier,
     70     bool include_incognito);
     71 
     72 ContentSetting GetContentSetting(
     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 
     80 // Populates |rules| with content setting rules for content types that are
     81 // handled by the renderer.
     82 void GetRendererContentSettingRules(const HostContentSettingsMap* map,
     83                                     RendererContentSettingRules* rules);
     84 
     85 }  // namespace content_settings
     86 
     87 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_UTILS_H_
     88