// 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_SCRIPT_INJECTION_MANAGER_H_ #define EXTENSIONS_RENDERER_SCRIPT_INJECTION_MANAGER_H_ #include #include #include #include #include #include "base/callback.h" #include "base/scoped_observation.h" #include "extensions/common/mojom/frame.mojom.h" #include "extensions/common/mojom/host_id.mojom-forward.h" #include "extensions/common/mojom/run_location.mojom-shared.h" #include "extensions/common/user_script.h" #include "extensions/renderer/script_injection.h" #include "extensions/renderer/user_script_set_manager.h" namespace content { class RenderFrame; } namespace extensions { // The ScriptInjectionManager manages extensions injecting scripts into frames // via both content/user scripts and tabs.executeScript(). It is responsible for // maintaining any pending injections awaiting permission or the appropriate // load point, and injecting them when ready. class ScriptInjectionManager : public UserScriptSetManager::Observer { public: explicit ScriptInjectionManager( UserScriptSetManager* user_script_set_manager); ScriptInjectionManager(const ScriptInjectionManager&) = delete; ScriptInjectionManager& operator=(const ScriptInjectionManager&) = delete; virtual ~ScriptInjectionManager(); // Notifies that a new render view has been created. void OnRenderFrameCreated(content::RenderFrame* render_frame); // Removes pending injections of the unloaded extension. void OnExtensionUnloaded(const std::string& extension_id); // Handle the ExecuteCode extension message. void HandleExecuteCode(mojom::ExecuteCodeParamsPtr params, mojom::LocalFrame::ExecuteCodeCallback callback, content::RenderFrame* render_frame); void ExecuteDeclarativeScript(content::RenderFrame* render_frame, int tab_id, const ExtensionId& extension_id, const std::string& script_id, const GURL& url); void set_activity_logging_enabled(bool enabled) { activity_logging_enabled_ = enabled; } private: // A RenderFrameObserver implementation which watches the various render // frames in order to notify the ScriptInjectionManager of different // document load states and IPCs. class RFOHelper; using FrameStatusMap = std::map; using ScriptInjectionVector = std::vector>; // Notifies that an injection has been finished or permission has been // handled. void OnInjectionStatusUpdated(ScriptInjection::InjectionStatus status, ScriptInjection* injection); // Notifies that an injection has been finished. void OnInjectionFinished(ScriptInjection* injection); // Handle the GrantInjectionPermission extension message. void OnPermitScriptInjectionHandled(ScriptInjection* injection); // UserScriptSetManager::Observer implementation. void OnUserScriptsUpdated(const mojom::HostID& changed_host) override; // Notifies that an RFOHelper should be removed. void RemoveObserver(RFOHelper* helper); // Invalidate any pending tasks associated with |frame|. void InvalidateForFrame(content::RenderFrame* frame); // Starts the process to inject appropriate scripts into |frame|. void StartInjectScripts(content::RenderFrame* frame, mojom::RunLocation run_location); // Actually injects the scripts into |frame|. void InjectScripts(content::RenderFrame* frame, mojom::RunLocation run_location); // Try to inject and store injection if it has not finished. void TryToInject(std::unique_ptr injection, mojom::RunLocation run_location, ScriptsRunInfo* scripts_run_info); // The map of active web frames to their corresponding statuses. The // RunLocation of the frame corresponds to the last location that has ran. FrameStatusMap frame_statuses_; // The frames currently being injected into, so long as that frame is valid. std::set active_injection_frames_; // The collection of RFOHelpers. std::vector> rfo_helpers_; // The set of UserScripts associated with extensions. Owned by the Dispatcher. UserScriptSetManager* user_script_set_manager_; // Pending injections which are waiting for either the proper run location or // user consent. ScriptInjectionVector pending_injections_; // Running injections which are waiting for async callbacks from blink. ScriptInjectionVector running_injections_; // Whether or not dom activity should be logged for scripts injected. bool activity_logging_enabled_ = false; base::ScopedObservation user_script_set_manager_observation_{this}; }; } // namespace extensions #endif // EXTENSIONS_RENDERER_SCRIPT_INJECTION_MANAGER_H_