| // Copyright 2014 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 EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |
| #define EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |
| |
| #include <map> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/observer_list.h" |
| #include "content/public/renderer/render_thread_observer.h" |
| #include "extensions/common/extension.h" |
| #include "extensions/common/user_script.h" |
| #include "extensions/renderer/user_script_set.h" |
| |
| namespace content { |
| class RenderFrame; |
| } |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| namespace extensions { |
| |
| class ScriptInjection; |
| |
| // Manager for separate UserScriptSets, one for each shared memory region. |
| // Regions are organized as follows: |
| // static_scripts -- contains all extensions' scripts that are statically |
| // declared in the extension manifest. |
| // programmatic_scripts -- one region per host (extension or WebUI) containing |
| // only programmatically-declared scripts, instantiated |
| // when an extension first creates a declarative rule |
| // that would, if triggered, request a script injection. |
| class UserScriptSetManager : public content::RenderThreadObserver { |
| public: |
| // Like a UserScriptSet::Observer, but automatically subscribes to all sets |
| // associated with the manager. |
| class Observer { |
| public: |
| virtual void OnUserScriptsUpdated( |
| const std::set<HostID>& changed_hosts) = 0; |
| }; |
| |
| UserScriptSetManager(); |
| |
| ~UserScriptSetManager() override; |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| // Looks up the script injection associated with |script_id| and |
| // |extension_id| in the context of the given |web_frame|, |tab_id|, |
| // and |url|. |
| std::unique_ptr<ScriptInjection> GetInjectionForDeclarativeScript( |
| int script_id, |
| content::RenderFrame* render_frame, |
| int tab_id, |
| const GURL& url, |
| const std::string& extension_id); |
| |
| // Append all injections from |static_scripts| and each of |
| // |programmatic_scripts_| to |injections|. |
| void GetAllInjections( |
| std::vector<std::unique_ptr<ScriptInjection>>* injections, |
| content::RenderFrame* render_frame, |
| int tab_id, |
| UserScript::RunLocation run_location); |
| |
| // Get active extension IDs from |static_scripts| and each of |
| // |programmatic_scripts_|. |
| void GetAllActiveExtensionIds(std::set<std::string>* ids) const; |
| |
| const UserScriptSet* static_scripts() const { return &static_scripts_; } |
| |
| void set_activity_logging_enabled(bool enabled) { |
| activity_logging_enabled_ = enabled; |
| } |
| |
| private: |
| // Map for per-extension sets that may be defined programmatically. |
| using UserScriptSetMap = std::map<HostID, std::unique_ptr<UserScriptSet>>; |
| |
| // content::RenderThreadObserver implementation. |
| bool OnControlMessageReceived(const IPC::Message& message) override; |
| |
| UserScriptSet* GetProgrammaticScriptsByHostID(const HostID& host_id); |
| |
| // Handle the UpdateUserScripts extension message. |
| void OnUpdateUserScripts(base::SharedMemoryHandle shared_memory, |
| const HostID& host_id, |
| const std::set<HostID>& changed_hosts, |
| bool whitelisted_only); |
| |
| // Scripts statically defined in extension manifests. |
| UserScriptSet static_scripts_; |
| |
| // Scripts programmatically-defined through API calls (initialized and stored |
| // per-extension). |
| UserScriptSetMap programmatic_scripts_; |
| |
| // Whether or not dom activity should be logged for injected scripts. |
| bool activity_logging_enabled_; |
| |
| // The associated observers. |
| base::ObserverList<Observer> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UserScriptSetManager); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |