Policy: Re-enabled plugin still disabled

webkit/glue/plugins/plugin_list.h

 // Copyright (c) 2010 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.
 
 #ifndef WEBKIT_GLUE_PLUGINS_PLUGIN_LIST_H_
 #define WEBKIT_GLUE_PLUGINS_PLUGIN_LIST_H_
 
+#include <map>
 #include <set>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/linked_ptr.h"
 #include "base/lock.h"
 #include "third_party/npapi/bindings/nphostapi.h"
 #include "webkit/glue/plugins/plugin_group.h"
 #include "webkit/glue/plugins/webplugininfo.h"
 
@@ skipping 161 matching lines @@
   // cache.
   std::string GetPluginGroupIdentifier(const WebPluginInfo& web_plugin_info);
 
   // Load a specific plugin with full path.
   void LoadPlugin(const FilePath& filename,
                   std::vector<WebPluginInfo>* plugins);
 
   // Enable a specific plugin, specified by path. Returns |true| iff a plugin
   // currently in the plugin list was actually enabled as a result; regardless
   // of return value, if a plugin is found in the future with the given name, it
-  // will be enabled. Note that plugins are enabled by default as far as
-  // |PluginList| is concerned.
-  bool EnablePlugin(const FilePath& filename);
+  // will be enabled. |name| must be specified if EnablePlugin can be called
+  // for a plugin that is not yet loaded. Especially true when setting plugins

[Bernhard Bauer, 2010/12/20 22:30:28]

"Especially true"? As in, even more true than is usual? ;-)

[pastarmovj, 2010/12/21 16:53:02]

It was really really true in this case :) Fixed.

+  // as enabled by policy.
+  bool EnablePlugin(const FilePath& filename, const string16& name);
 
   // Disable a specific plugin, specified by path. Returns |true| iff a plugin
   // currently in the plugin list was actually disabled as a result; regardless
   // of return value, if a plugin is found in the future with the given name, it
-  // will be disabled.
-  bool DisablePlugin(const FilePath& filename);
+  // will be disabled.  |name| must be specified if EnablePlugin can be called
+  // for a plugin that is not yet loaded. Especially true when setting plugins
+  // as enabled b policy.
+  bool DisablePlugin(const FilePath& filename, const string16& name);
 
   // Enable/disable a plugin group, specified by group_name.  Returns |true| iff
   // a plugin currently in the plugin list was actually enabled/disabled as a
   // result; regardless of return value, if a plugin is found in the future with
-  // the given name, it will be enabled/disabled. Note that plugins are enabled
-  // by default as far as |PluginList| is concerned.
+  // the given name, it will be enabled/disabled.
   bool EnableGroup(bool enable, const string16& name);
 
   // Disable all plugins groups that are known to be outdated, according to
   // the information hardcoded in PluginGroup, to make sure that they can't
   // be loaded on a web page and instead show a UI to update to the latest
   // version.
   void DisableOutdatedPluginGroups();
 
-  ~PluginList();
+  virtual ~PluginList();
 
- private:
-  FRIEND_TEST_ALL_PREFIXES(PluginGroupTest, PluginGroupDefinition);
-
+ protected:
   // Constructors are private for singletons
   PluginList();
 
-  // Creates PluginGroups for the static group definitions, and adds them to
-  // the PluginGroup cache of this PluginList.
-  void AddHardcodedPluginGroups();
+  // Load all plugins from the default plugins directory
+  virtual void LoadPlugins(bool refresh);
+
+  // Allows tests to perform custom post-initialization tasks on newly created
+  // PluginGroups.
+  virtual void ProcessGroupAfterInitialize(PluginGroup* group) { }
 
   // Adds the given WebPluginInfo to its corresponding group, creating it if
   // necessary, and returns the group.
   // Callers need to protect calls to this method by a lock themselves.
   PluginGroup* AddToPluginGroups(const WebPluginInfo& web_plugin_info);
 
-  // Load all plugins from the default plugins directory
-  void LoadPlugins(bool refresh);
+  bool plugins_loaded_;
+
+  // Holds the currently available plugin groups.
+  PluginGroup::PluginMap plugin_groups_;
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(PluginGroupTest, PluginGroupDefinition);
+
+  // Creates PluginGroups for the static group definitions, and adds them to
+  // the PluginGroup cache of this PluginList.
+  void AddHardcodedPluginGroups();
+
+  // Adds the Plugin given by its path and name to its corresponding group,
+  // creating it if necessary, and returns the group. this function can be
+  // called for plugins not yet registered in the system. It will create a
+  // placeholder until the complete information can be added with a call to
+  // AddToPluginGroup.
+  // Callers need to protect calls to this method by a lock themselves.
+  PluginGroup* AddPlaceholderToPluginGroups(const FilePath& filename,
+                                 const string16& name);

[Bernhard Bauer, 2010/12/20 22:30:28]

Nit: align with previous parameter pls.

[pastarmovj, 2010/12/21 16:53:02]

Done.

 
   // Load all plugins from a specific directory.
   // |plugins| is updated with loaded plugin information.
   // |visited_plugins| is updated with paths to all plugins that were considered
   //   (including those we didn't load)
   void LoadPluginsFromDir(const FilePath& path,
                           std::vector<WebPluginInfo>* plugins,
                           std::set<FilePath>* visited_plugins);
 
   // Returns true if we should load the given plugin, or false otherwise.
   // plugins is the list of plugins we have crawled in the current plugin
   // loading run.
   bool ShouldLoadPlugin(const WebPluginInfo& info,
                         std::vector<WebPluginInfo>* plugins);
 
   // Return whether a plug-in group with the given name should be disabled,
   // either because it already is on the list of disabled groups, or because it
   // is blacklisted by a policy. In the latter case, add the plugin group to the
   // list of disabled groups as well.
   bool ShouldDisableGroup(const string16& group_name);
 
-  // Returns true if the given WebPluginInfo supports "mime-type".
-  // mime_type should be all lower case.
-  static bool SupportsType(const WebPluginInfo& info,
-                           const std::string &mime_type,
-                           bool allow_wildcard);
-
-  // Returns true if the given WebPluginInfo supports a given file extension.
-  // extension should be all lower case.
-  // If mime_type is not NULL, it will be set to the mime type if found.
-  // The mime type which corresponds to the extension is optionally returned
-  // back.
-  static bool SupportsExtension(const WebPluginInfo& info,
-                                const std::string &extension,
-                                std::string* actual_mime_type);
-
   //
   // Platform functions
   //
 
   // Do any initialization.
   void PlatformInit();
 
   // Get the ordered list of directories from which to load plugins
   void GetPluginDirectories(std::vector<FilePath>* plugin_dirs);
 
   //
   // Command-line switches
   //
 
 #if defined(OS_WIN)
   // true if we shouldn't load the new WMP plugin.
   bool dont_load_new_wmp_;
 
   // Loads plugins registered under HKCU\Software\MozillaPlugins and
   // HKLM\Software\MozillaPlugins.
   void LoadPluginsFromRegistry(std::vector<WebPluginInfo>* plugins,
                                std::set<FilePath>* visited_plugins);
 #endif
 
   //
   // Internals
   //
 
-  bool plugins_loaded_;
-
   // If true, we reload plugins even if they've been loaded already.
   bool plugins_need_refresh_;
 
-  // Contains information about the available plugins.
-  std::vector<WebPluginInfo> plugins_;
-
   // Extra plugin paths that we want to search when loading.
   std::vector<FilePath> extra_plugin_paths_;
 
   // Extra plugin directories that we want to search when loading.
   std::vector<FilePath> extra_plugin_dirs_;
 
   // Holds information about internal plugins.
   std::vector<PluginVersionInfo> internal_plugins_;
 
-  // Path names of plugins to disable (the default is to enable them all).
-  std::set<FilePath> disabled_plugins_;
-
-  // Group names to disable (the default is to enable them all).
-  std::set<string16> disabled_groups_;
-
   bool disable_outdated_plugins_;
 
-  // Holds the currently available plugin groups.
-  PluginGroup::PluginMap plugin_groups_;
-
   int next_priority_;
 
   // Need synchronization for the above members since this object can be
   // accessed on multiple threads.
-  Lock lock_;
+  mutable Lock lock_;
 
   friend struct base::DefaultLazyInstanceTraits<PluginList>;
 
   DISALLOW_COPY_AND_ASSIGN(PluginList);
 };
 
 }  // namespace NPAPI
 
 #endif  // WEBKIT_GLUE_PLUGINS_PLUGIN_LIST_H_