Migrate geolocation settings to host content settings map.

chrome/browser/content_settings/content_settings_pref_provider.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/content_settings/content_settings_pref_provider.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 24 matching lines @@
 typedef std::map<std::string, std::string> StringMap;
 
 // The preference keys where resource identifiers are stored for
 // ContentSettingsType values that support resource identifiers.
 const char* kResourceTypeNames[] = {
   NULL,
   NULL,
   NULL,
   "per_plugin",
   NULL,
-  NULL,  // Not used for Geolocation
+  NULL,
   NULL,  // Not used for Notifications
 };
 COMPILE_ASSERT(arraysize(kResourceTypeNames) == CONTENT_SETTINGS_NUM_TYPES,
                resource_type_names_incorrect_size);
 
 // The default setting for each content type.
 const ContentSetting kDefaultSettings[] = {
   CONTENT_SETTING_ALLOW,  // CONTENT_SETTINGS_TYPE_COOKIES
   CONTENT_SETTING_ALLOW,  // CONTENT_SETTINGS_TYPE_IMAGES
   CONTENT_SETTING_ALLOW,  // CONTENT_SETTINGS_TYPE_JAVASCRIPT
   CONTENT_SETTING_ALLOW,  // CONTENT_SETTINGS_TYPE_PLUGINS
   CONTENT_SETTING_BLOCK,  // CONTENT_SETTINGS_TYPE_POPUPS
   CONTENT_SETTING_ASK,    // CONTENT_SETTINGS_TYPE_GEOLOCATION
   CONTENT_SETTING_ASK,    // CONTENT_SETTINGS_TYPE_NOTIFICATIONS
 };
 COMPILE_ASSERT(arraysize(kDefaultSettings) == CONTENT_SETTINGS_NUM_TYPES,
                default_settings_incorrect_size);
 
 // The names of the ContentSettingsType values, for use with dictionary prefs.
 const char* kTypeNames[] = {
   "cookies",
   "images",
   "javascript",
   "plugins",
   "popups",
+  "geolocation",
   // TODO(markusheintz): Refactoring in progress. Content settings exceptions
-  // for notifications and geolocation will be added next.
-  "geolocation",  // Only used for default Geolocation settings
+  // for notifications added next.
   "notifications",  // Only used for default Notifications settings.
 };
 COMPILE_ASSERT(arraysize(kTypeNames) == CONTENT_SETTINGS_NUM_TYPES,
                type_names_incorrect_size);
 
 void SetDefaultContentSettings(DictionaryValue* default_settings) {
   default_settings->Clear();
 
   for (int i = 0; i < CONTENT_SETTINGS_NUM_TYPES; ++i) {
     if (kTypeNames[i] != NULL) {
@@ skipping 270 matching lines @@
 // static
 void PrefProvider::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterIntegerPref(
       prefs::kContentSettingsVersion,
       ContentSettingsPattern::kContentSettingsPatternVersion,
       PrefService::UNSYNCABLE_PREF);
   prefs->RegisterDictionaryPref(prefs::kContentSettingsPatternPairs,
                                 PrefService::SYNCABLE_PREF);
 
   // Obsolete prefs, for migration:
+  prefs->RegisterDictionaryPref(prefs::kGeolocationContentSettings,
+                                PrefService::SYNCABLE_PREF);
   prefs->RegisterDictionaryPref(prefs::kContentSettingsPatterns,
                                 PrefService::SYNCABLE_PREF);
   prefs->RegisterListPref(prefs::kPopupWhitelistedHosts,
                           PrefService::UNSYNCABLE_PREF);
   prefs->RegisterDictionaryPref(prefs::kPerHostContentSettings,
                                 PrefService::UNSYNCABLE_PREF);
 }
 
 PrefProvider::PrefProvider(PrefService* prefs,
                            bool incognito)
   : prefs_(prefs),
     is_incognito_(incognito),
     updating_preferences_(false) {
   DCHECK(prefs_);
   if (!is_incognito_) {
     // Migrate obsolete preferences.
     MigrateObsoletePerhostPref();
     MigrateObsoletePopupsPref();
     MigrateObsoleteContentSettingsPatternPref();
+    MigrateObsoleteGeolocationPref();
   }
 
   // Verify preferences version.
   if (!prefs_->HasPrefPath(prefs::kContentSettingsVersion)) {
     prefs_->SetInteger(prefs::kContentSettingsVersion,
                       ContentSettingsPattern::kContentSettingsPatternVersion);
   }
   if (prefs_->GetInteger(prefs::kContentSettingsVersion) >
       ContentSettingsPattern::kContentSettingsPatternVersion) {
     return;
   }
 
   // Read content settings exceptions.
   ReadContentSettingsFromPref(false);
 
   if (!is_incognito_) {
     UMA_HISTOGRAM_COUNTS("ContentSettings.NumberOfExceptions",
                          value_map_.size());
   }
 
   pref_change_registrar_.Init(prefs_);
   pref_change_registrar_.Add(prefs::kContentSettingsPatterns, this);
   pref_change_registrar_.Add(prefs::kContentSettingsPatternPairs, this);
+  pref_change_registrar_.Add(prefs::kGeolocationContentSettings, this);
 }
 
 ContentSetting PrefProvider::GetContentSetting(
     const GURL& primary_url,
     const GURL& secondary_url,
     ContentSettingsType content_type,
     const ResourceIdentifier& resource_identifier) const {
   // For a |PrefProvider| used in a |HostContentSettingsMap| of a non incognito
   // profile, this will always return NULL.
   // TODO(markusheintz): I don't like this. I'd like to have an
@@ skipping 46 matching lines @@
 }
 
 void PrefProvider::SetContentSetting(
     const ContentSettingsPattern& primary_pattern,
     const ContentSettingsPattern& secondary_pattern,
     ContentSettingsType content_type,
     const ResourceIdentifier& resource_identifier,
     ContentSetting setting) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(prefs_);
-  DCHECK(kTypeNames[content_type] != NULL);  // Don't call this for Geolocation.
+  DCHECK(kTypeNames[content_type] != NULL);
 
   // Update in memory value map.
   OriginIdentifierValueMap* map_to_modify = &incognito_value_map_;
   if (!is_incognito_)
     map_to_modify = &value_map_;
 
   {
     base::AutoLock auto_lock(lock_);
     if (setting == CONTENT_SETTING_DEFAULT) {
       map_to_modify->DeleteValue(
@@ skipping 65 matching lines @@
     const NotificationDetails& details) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (type == chrome::NOTIFICATION_PREF_CHANGED) {
     DCHECK_EQ(prefs_, Source<PrefService>(source).ptr());
     if (updating_preferences_)
       return;
 
     std::string* name = Details<std::string>(details).ptr();
     if (*name == prefs::kContentSettingsPatternPairs) {
-      SyncObsoletePref();
+      AutoReset<bool> auto_reset(&updating_preferences_, true);

[Bernhard Bauer, 2011/08/10 11:55:29]

Nit: Move this (and the ones below) out of the if-block directly after the check
whether it's already set?

Likewise, you could move |ReadContentSettingsFromPref| below the block.

[markusheintz_, 2011/08/10 12:47:58]

Done.

+      SyncObsoletePatternPref();
+      SyncObsoleteGeolocationPref();
       ReadContentSettingsFromPref(true);
     } else if (*name == prefs::kContentSettingsPatterns) {
       AutoReset<bool> auto_reset(&updating_preferences_, true);
       MigrateObsoleteContentSettingsPatternPref();
       ReadContentSettingsFromPref(true);
+    } else if (*name == prefs::kGeolocationContentSettings) {
+      AutoReset<bool> auto_reset(&updating_preferences_, true);
+      MigrateObsoleteGeolocationPref();
+      ReadContentSettingsFromPref(true);
     } else {
       NOTREACHED() << "Unexpected preference observed";
       return;
     }
 
     NotifyObservers(ContentSettingsPattern(),
                     ContentSettingsPattern(),
                     CONTENT_SETTINGS_TYPE_DEFAULT,
                     std::string());
   } else {
@@ skipping 13 matching lines @@
     const ContentSettingsPattern& secondary_pattern,
     ContentSettingsType content_type,
     const ResourceIdentifier& resource_identifier,
     ContentSetting setting) {
   AutoReset<bool> auto_reset(&updating_preferences_, true);
   UpdatePatternPairsPref(primary_pattern,
                          secondary_pattern,
                          content_type,
                          resource_identifier,
                          setting);
-  UpdatePatternsPref(primary_pattern,
-                     secondary_pattern,
-                     content_type,
-                     resource_identifier,
-                     setting);
+  if (content_type != CONTENT_SETTINGS_TYPE_GEOLOCATION &&
+      content_type != CONTENT_SETTINGS_TYPE_NOTIFICATIONS) {
+    UpdateObsoletePatternsPref(primary_pattern,
+                               secondary_pattern,
+                               content_type,
+                               resource_identifier,
+                               setting);
+  }
+  if (content_type == CONTENT_SETTINGS_TYPE_GEOLOCATION) {
+    UpdateObsoleteGeolocationPref(primary_pattern, secondary_pattern, setting);
+  }
 }
 
 void PrefProvider::ReadContentSettingsFromPref(bool overwrite) {
   base::AutoLock auto_lock(lock_);
 
   const DictionaryValue* all_settings_dictionary =
       prefs_->GetDictionary(prefs::kContentSettingsPatternPairs);
 
   if (overwrite)
     value_map_.clear();
@@ skipping 74 matching lines @@
                                 content_type,
                                 ResourceIdentifier(""),
                                 Value::CreateIntegerValue(setting));
           }
         }
       }
     }
   }
 }
 
-void PrefProvider::UpdatePatternsPref(
+void PrefProvider::UpdateObsoletePatternsPref(
       const ContentSettingsPattern& primary_pattern,
       const ContentSettingsPattern& secondary_pattern,
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier,
       ContentSetting setting) {
   DictionaryPrefUpdate update(prefs_,
                               prefs::kContentSettingsPatterns);
   DictionaryValue* all_settings_dictionary = update.Get();
 
   // Get settings dictionary for |primary_pattern|.
@@ skipping 112 matching lines @@
       }
     }
     // Remove the settings dictionary if it is empty.
     if (settings_dictionary->empty()) {
       all_settings_dictionary->RemoveWithoutPathExpansion(
           pattern_str, NULL);
     }
   }
 }
 
+void PrefProvider::UpdateObsoleteGeolocationPref(
+    const ContentSettingsPattern& primary_pattern,
+    const ContentSettingsPattern& secondary_pattern,
+    ContentSetting setting) {
+  if (!prefs_)
+    return;
+
+  const GURL requesting_origin(primary_pattern.ToString());
+  const GURL embedding_origin(secondary_pattern.ToString());
+  DCHECK(requesting_origin.is_valid() && embedding_origin.is_valid());
+
+  DictionaryPrefUpdate update(prefs_, prefs::kGeolocationContentSettings);
+  DictionaryValue* obsolete_geolocation_settings = update.Get();
+  DictionaryValue* requesting_origin_settings_dictionary = NULL;
+  obsolete_geolocation_settings->GetDictionaryWithoutPathExpansion(
+      requesting_origin.spec(), &requesting_origin_settings_dictionary);
+  if (setting == CONTENT_SETTING_DEFAULT) {
+    if (requesting_origin_settings_dictionary) {
+      requesting_origin_settings_dictionary->RemoveWithoutPathExpansion(
+          embedding_origin.spec(), NULL);
+      if (requesting_origin_settings_dictionary->empty()) {
+        obsolete_geolocation_settings->RemoveWithoutPathExpansion(
+            requesting_origin.spec(), NULL);
+      }
+    }
+  } else {
+    if (!requesting_origin_settings_dictionary) {
+      requesting_origin_settings_dictionary = new DictionaryValue;
+      obsolete_geolocation_settings->SetWithoutPathExpansion(
+          requesting_origin.spec(), requesting_origin_settings_dictionary);
+    }
+    DCHECK(requesting_origin_settings_dictionary);
+    requesting_origin_settings_dictionary->SetWithoutPathExpansion(
+        embedding_origin.spec(), Value::CreateIntegerValue(setting));
+  }
+}
+
 // static
 void PrefProvider::CanonicalizeContentSettingsExceptions(
     DictionaryValue* all_settings_dictionary) {
   DCHECK(all_settings_dictionary);
 
   std::vector<std::string> remove_items;
   std::vector<std::pair<std::string, std::string> > move_items;
   for (DictionaryValue::key_iterator i(all_settings_dictionary->begin_keys());
        i != all_settings_dictionary->end_keys(); ++i) {
     const std::string& pattern_str(*i);
@@ skipping 123 matching lines @@
                         "",
                         CONTENT_SETTING_ALLOW);
     }
     prefs_->ClearPref(prefs::kPopupWhitelistedHosts);
   }
 }
 
 void PrefProvider::MigrateObsoleteContentSettingsPatternPref() {
   if (prefs_->HasPrefPath(prefs::kContentSettingsPatterns) && !is_incognito_) {
     const DictionaryValue* patterns_dictionary =
-      prefs_->GetDictionary(prefs::kContentSettingsPatterns);
+        prefs_->GetDictionary(prefs::kContentSettingsPatterns);
 
     // A map with an old key, new key mapping. If the new key is empty then the
     // value for the old key will be removed.
     StringMap keys_to_change;
-
     {
       DictionaryPrefUpdate update(prefs_, prefs::kContentSettingsPatternPairs);
       DictionaryValue* pattern_pairs_dictionary = update.Get();
       for (DictionaryValue::key_iterator i(
                patterns_dictionary->begin_keys());
            i != patterns_dictionary->end_keys();
            ++i) {
         const std::string& key(*i);
         // Remove broken pattern keys and fix keys with pattern pairs.
         size_t sep_pos = key.find(",");
@@ skipping 51 matching lines @@
         DCHECK(found);
         if (!pattern_str_pair.second.empty()) {
           mutable_patterns_dictionary->SetWithoutPathExpansion(
               pattern_str_pair.second, dict.release());
         }
       }
     }
   }
 }
 
-void PrefProvider::SyncObsoletePref() {
-  AutoReset<bool> auto_reset(&updating_preferences_, true);
+void PrefProvider::SyncObsoletePatternPref() {
   if (prefs_->HasPrefPath(prefs::kContentSettingsPatternPairs) &&
       !is_incognito_) {
     const DictionaryValue* pattern_pairs_dictionary =
       prefs_->GetDictionary(prefs::kContentSettingsPatternPairs);
 
     DictionaryPrefUpdate update(prefs_, prefs::kContentSettingsPatterns);
     DictionaryValue* obsolete_settings_dictionary = update.Get();
 
     for (DictionaryValue::key_iterator i =
              pattern_pairs_dictionary->begin_keys();
          i != pattern_pairs_dictionary->end_keys();
          ++i) {
       const std::string& key(*i);
       // Validate pattern string and skip it if it is invalid.
       std::pair<ContentSettingsPattern, ContentSettingsPattern> pattern_pair =
           ParsePatternString(key);
       if (!pattern_pair.first.IsValid() || !pattern_pair.second.IsValid()) {
         LOG(DFATAL) << "Invalid pattern strings: " << key;
         continue;
       }
 
-      // Copy dictionary
-      DictionaryValue* dictionary = NULL;
+      DictionaryValue* settings_dictionary = NULL;
       bool found = pattern_pairs_dictionary->GetDictionaryWithoutPathExpansion(
-          key, &dictionary);
+          key, &settings_dictionary);
       DCHECK(found);
-      std::string new_key = pattern_pair.first.ToString();
-      // Existing values are overwritten.
-      obsolete_settings_dictionary->SetWithoutPathExpansion(
-          new_key, dictionary->DeepCopy());
+      scoped_ptr<DictionaryValue> settings_dictionary_copy(
+          new DictionaryValue());
+      for (size_t i = CONTENT_SETTINGS_TYPE_COOKIES;
+           i <= CONTENT_SETTINGS_TYPE_POPUPS;
+           ++i) {
+        DCHECK(kTypeNames[i]);
+        std::string type_name(kTypeNames[i]);
+        if (settings_dictionary->HasKey(type_name)) {
+          Value* value = NULL;
+          bool found = settings_dictionary->GetWithoutPathExpansion(
+              type_name, &value);
+          DCHECK(found);
+          settings_dictionary_copy->SetWithoutPathExpansion(
+              type_name, value->DeepCopy());
+        }
+      }
+
+      // Ignore empty dictionaryies.
+      if (!settings_dictionary_copy->empty()) {
+        std::string new_key = pattern_pair.first.ToString();
+        // Existing values are overwritten.
+        obsolete_settings_dictionary->SetWithoutPathExpansion(
+            new_key, settings_dictionary_copy.release());
+      }
     }
   }
 }
+
+void PrefProvider::MigrateObsoleteGeolocationPref() {
+  if (!prefs_->HasPrefPath(prefs::kGeolocationContentSettings))
+    return;
+
+  const DictionaryValue* geolocation_settings =
+      prefs_->GetDictionary(prefs::kGeolocationContentSettings);
+  for (DictionaryValue::key_iterator i =
+           geolocation_settings->begin_keys();
+       i != geolocation_settings->end_keys();
+       ++i) {
+    const std::string& primary_key(*i);
+    GURL primary_url(primary_key);
+    DCHECK(primary_url.is_valid());
+
+    DictionaryValue* requesting_origin_settings = NULL;
+    bool found = geolocation_settings->GetDictionaryWithoutPathExpansion(
+        primary_key, &requesting_origin_settings);
+    DCHECK(found);
+
+    for (DictionaryValue::key_iterator j =
+             requesting_origin_settings->begin_keys();
+         j != requesting_origin_settings->end_keys();
+         ++j) {
+      const std::string& secondary_key(*j);
+      GURL secondary_url(secondary_key);
+      DCHECK(secondary_url.is_valid());
+
+      int setting_value;
+      found = requesting_origin_settings->GetIntegerWithoutPathExpansion(
+          secondary_key, &setting_value);
+      DCHECK(found);
+
+      ContentSettingsPattern primary_pattern =
+          ContentSettingsPattern::FromURLNoWildcard(primary_url);
+      ContentSettingsPattern secondary_pattern =
+          ContentSettingsPattern::FromURLNoWildcard(secondary_url);
+      DCHECK(primary_pattern.IsValid() && secondary_pattern.IsValid());
+
+      SetContentSetting(primary_pattern,
+                        secondary_pattern,
+                        CONTENT_SETTINGS_TYPE_GEOLOCATION,
+                        std::string(),
+                        IntToContentSetting(setting_value));
+    }
+  }
+}
+
+void PrefProvider::SyncObsoleteGeolocationPref() {
+  DCHECK(prefs_);
+  DCHECK(prefs_->HasPrefPath(prefs::kContentSettingsPatternPairs));
+
+  // Clear the obsolete preference for geolocation settings. Then copy all
+  // geolocation settings from the new preference to the obsolete one.
+  prefs_->ClearPref(prefs::kGeolocationContentSettings);
+  const DictionaryValue* pattern_pairs_dictionary =
+      prefs_->GetDictionary(prefs::kContentSettingsPatternPairs);
+  for (DictionaryValue::key_iterator i =
+           pattern_pairs_dictionary->begin_keys();
+       i != pattern_pairs_dictionary->end_keys();
+       ++i) {
+    const std::string& key(*i);
+    std::pair<ContentSettingsPattern, ContentSettingsPattern> pattern_pair =
+        ParsePatternString(key);
+    DCHECK(pattern_pair.first.IsValid() && pattern_pair.second.IsValid());
+
+    DictionaryValue* settings_dictionary = NULL;
+    bool found = pattern_pairs_dictionary->GetDictionaryWithoutPathExpansion(
+        key, &settings_dictionary);
+    DCHECK(found);
+
+    if (settings_dictionary->HasKey(
+            kTypeNames[CONTENT_SETTINGS_TYPE_GEOLOCATION])) {
+      int setting_value;
+      settings_dictionary->GetInteger(
+          kTypeNames[CONTENT_SETTINGS_TYPE_GEOLOCATION], &setting_value);
+
+      UpdateObsoleteGeolocationPref(pattern_pair.first,
+                                    pattern_pair.second,
+                                    ContentSetting(setting_value));
+    }
+  }
+}
 
 }  // namespace content_settings