Respect the clipboardRead and clipboardWrite permissions in content scripts.

extensions/renderer/script_context.cc

 // 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.
 
 #include "extensions/renderer/script_context.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 15 matching lines @@
 #include "third_party/WebKit/public/web/WebView.h"
 #include "v8/include/v8.h"
 
 using content::V8ValueConverter;
 
 namespace extensions {
 
 ScriptContext::ScriptContext(const v8::Handle<v8::Context>& v8_context,
                              blink::WebFrame* web_frame,
                              const Extension* extension,
-                             Feature::Context context_type)
+                             Feature::Context context_type,
+                             const Extension* effective_extension,
+                             Feature::Context effective_context_type)
     : v8_context_(v8_context),
       web_frame_(web_frame),
       extension_(extension),
       context_type_(context_type),
+      effective_extension_(effective_extension),
+      effective_context_type_(effective_context_type),
       safe_builtins_(this),
       isolate_(v8_context->GetIsolate()) {
   VLOG(1) << "Created context:\n"
           << "  extension id: " << GetExtensionID() << "\n"
           << "  frame:        " << web_frame_ << "\n"
           << "  URL:          " << GetURL() << "\n"
-          << "  context type: " << GetContextTypeDescription();
+          << "  context type: " << GetContextTypeDescription() << "\n"
+          << "  effective extension id: " << GetEffectiveExtensionID() << "\n"
+          << "  effective context type: "
+          << GetEffectiveContextTypeDescription();
   gin::PerContextData::From(v8_context)->set_runner(this);
 }
 
 ScriptContext::~ScriptContext() {
   VLOG(1) << "Destroyed context for extension\n"
-          << "  extension id: " << GetExtensionID();
+          << "  extension id: " << GetExtensionID() << "\n"
+          << "  effective extension id: " << GetEffectiveExtensionID();
   Invalidate();
 }
 
 void ScriptContext::Invalidate() {
   if (!is_valid())
     return;
   if (module_system_)
     module_system_->Invalidate();
   web_frame_ = NULL;
   v8_context_.reset();
 }
 
 const std::string& ScriptContext::GetExtensionID() const {
   return extension_.get() ? extension_->id() : base::EmptyString();
 }
 
+const std::string& ScriptContext::GetEffectiveExtensionID() const {
+  return effective_extension_.get() ? effective_extension_->id()
+                                    : base::EmptyString();
+}
+
 content::RenderView* ScriptContext::GetRenderView() const {
   if (web_frame_ && web_frame_->view())
     return content::RenderView::FromWebView(web_frame_->view());
   return NULL;
 }
 
 content::RenderFrame* ScriptContext::GetRenderFrame() const {
   if (web_frame_)
     return content::RenderFrame::FromWebFrame(web_frame_);
   return NULL;
@@ skipping 45 matching lines @@
   module_system_->CallModuleMethod(
       kEventBindings, "dispatchEvent", arraysize(argv), argv);
 }
 
 void ScriptContext::DispatchOnUnloadEvent() {
   v8::HandleScope handle_scope(isolate());
   v8::Context::Scope context_scope(v8_context());
   module_system_->CallModuleMethod("unload_event", "dispatch");
 }
 
-std::string ScriptContext::GetContextTypeDescription() {
-  switch (context_type_) {
+// static
+std::string ScriptContext::GetContextTypeDescription(

[Devlin, 2014/09/03 22:09:16]

Unless this is used elsewhere, I'd probably move it to an anonymous namespace to
reduce bloat in the header.

[Marijn Kruisselbrink, 2014/09/03 23:54:07]

Done.

+    Feature::Context context_type) {
+  switch (context_type) {
     case Feature::UNSPECIFIED_CONTEXT:
       return "UNSPECIFIED";
     case Feature::BLESSED_EXTENSION_CONTEXT:
       return "BLESSED_EXTENSION";
     case Feature::UNBLESSED_EXTENSION_CONTEXT:
       return "UNBLESSED_EXTENSION";
     case Feature::CONTENT_SCRIPT_CONTEXT:
       return "CONTENT_SCRIPT";
     case Feature::WEB_PAGE_CONTEXT:
       return "WEB_PAGE";
     case Feature::BLESSED_WEB_PAGE_CONTEXT:
       return "BLESSED_WEB_PAGE";
     case Feature::WEBUI_CONTEXT:
       return "WEBUI";
   }
   NOTREACHED();
   return std::string();
 }
 
+std::string ScriptContext::GetContextTypeDescription() {
+  return GetContextTypeDescription(context_type_);
+}
+
+std::string ScriptContext::GetEffectiveContextTypeDescription() {
+  return GetContextTypeDescription(effective_context_type_);
+}
+
 GURL ScriptContext::GetURL() const {
   return web_frame() ? GetDataSourceURLForFrame(web_frame()) : GURL();
 }
 
 bool ScriptContext::IsAnyFeatureAvailableToContext(const Feature& api) {
   return ExtensionAPI::GetSharedInstance()->IsAnyFeatureAvailableToContext(
       api, extension(), context_type(), GetDataSourceURLForFrame(web_frame()));
 }
 
 // static
@@ skipping 78 matching lines @@
                                           v8::Handle<v8::Value> argv[]) {
   return CallFunction(function, argc, argv);
 }
 
 gin::ContextHolder* ScriptContext::GetContextHolder() {
   v8::HandleScope handle_scope(isolate());
   return gin::PerContextData::From(v8_context())->context_holder();
 }
 
 }  // namespace extensions