Add the plumbing and test code for plugins opening files from the sandbox. Th...

chrome/renderer/webplugin_delegate_pepper.cc

 // Copyright (c) 2009 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.
 
 #define PEPPER_APIS_ENABLED 1
 
 #include "chrome/renderer/webplugin_delegate_pepper.h"
 
 #include <string>
 #include <vector>
 
 #include "app/gfx/blit.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "base/stats_counters.h"
 #include "base/string_util.h"
+#include "chrome/common/render_messages.h"
+#include "chrome/renderer/render_thread.h"
 #include "webkit/api/public/WebInputEvent.h"
 #include "webkit/glue/glue_util.h"
 #include "webkit/glue/pepper/pepper.h"
 #include "webkit/glue/plugins/plugin_constants_win.h"
 #include "webkit/glue/plugins/plugin_instance.h"
 #include "webkit/glue/plugins/plugin_lib.h"
 #include "webkit/glue/plugins/plugin_list.h"
 #include "webkit/glue/plugins/plugin_stream_url.h"
 #include "webkit/glue/webkit_glue.h"
 
 using webkit_glue::WebPlugin;
 using webkit_glue::WebPluginDelegate;
 using webkit_glue::WebPluginResourceClient;
 using WebKit::WebCursorInfo;
 using WebKit::WebKeyboardEvent;
 using WebKit::WebInputEvent;
 using WebKit::WebMouseEvent;
 using WebKit::WebMouseWheelEvent;
 
 namespace {
-  const uint32 kBytesPerPixel = 4;  // Only 8888 RGBA for now.
+
+const uint32 kBytesPerPixel = 4;  // Only 8888 RGBA for now.
+
 }  // namespace
 
 uint32 WebPluginDelegatePepper::next_buffer_id = 0;
 
 WebPluginDelegatePepper* WebPluginDelegatePepper::Create(
     const FilePath& filename,
     const std::string& mime_type,
     gfx::PluginWindowHandle containing_view) {
   scoped_refptr<NPAPI::PluginLib> plugin_lib =
       NPAPI::PluginLib::CreatePluginLib(filename);
@@ skipping 387 matching lines @@
 NPError WebPluginDelegatePepper::FlushRenderContext(NPRenderContext* context) {
   // TODO(brettw): we should have some kind of swapping of the canvases so we
   // can double buffer while avoiding this deep copy.
   if (!plugin_canvas_->getTopPlatformDevice().accessBitmap(false).copyTo(
           &committed_bitmap_, SkBitmap::kARGB_8888_Config))
     return NPERR_OUT_OF_MEMORY_ERROR;
 
   committed_bitmap_.setIsOpaque(false);
   return NPERR_NO_ERROR;
 }
+
+NPError WebPluginDelegatePepper::OpenFileInSandbox(const char* file_name,
+                                                   void** handle) {
+  *handle = NULL;
+
+#if defined(OS_WIN)
+  FilePath file_path(UTF8ToUTF16(file_name));
+#elif defined(OS_POSIX)
+  FilePath file_path(file_name);
+#endif
+
+  ViewMsg_OpenFileForPluginResponse_Params result;
+  RenderThread::current()->Send(new ViewMsg_OpenFileForPlugin(
+      file_path, &result));
+
+#if defined(OS_WIN)
+  if (!result.file_handle)
+    return NPERR_INVALID_PARAM;
+  *handle = result.file_handle;
+#elif defined(OS_POSIX)
+  if (!result.file_handle.fd)
+    return NPERR_INVALID_PARAM;
+  *static_cast<int*>(handle) = result.file_handle.fd;
+#endif
+
+  return NPERR_NO_ERROR;
+}