Add a path for a web page to request the enumeration of a directory. This, t...

content/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2011 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 "content/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 445 matching lines @@
   // Grant the renderer the ability to load the drop_data.
   ChildProcessSecurityPolicy* policy =
       ChildProcessSecurityPolicy::GetInstance();
   policy->GrantRequestURL(process()->id(), drop_data.url);
   for (std::vector<string16>::const_iterator iter(drop_data.filenames.begin());
        iter != drop_data.filenames.end(); ++iter) {
     FilePath path = FilePath::FromWStringHack(UTF16ToWideHack(*iter));
     policy->GrantRequestURL(process()->id(),
                             net::FilePathToFileURL(path));
     policy->GrantReadFile(process()->id(), path);
+
+    // Allow dragged directories to be enumerated by the child process.
+    // Note that we can't tell a file from a directory at this point.
+    policy->GrantReadDirectory(process()->id(), path);
   }
   Send(new DragMsg_TargetDragEnter(routing_id(), drop_data, client_pt,
                                    screen_pt, operations_allowed));
 }
 
 void RenderViewHost::DragTargetDragOver(
     const gfx::Point& client_pt, const gfx::Point& screen_pt,
     WebDragOperationsMask operations_allowed) {
   Send(new DragMsg_TargetDragOver(routing_id(), client_pt, screen_pt,
                                   operations_allowed));
@@ skipping 202 matching lines @@
     const std::vector<FilePath>& files) {
   // Grant the security access requested to the given files.
   for (std::vector<FilePath>::const_iterator file = files.begin();
        file != files.end(); ++file) {
     ChildProcessSecurityPolicy::GetInstance()->GrantReadFile(
         process()->id(), *file);
   }
   Send(new ViewMsg_RunFileChooserResponse(routing_id(), files));
 }
 
+void RenderViewHost::DirectoryEnumerationFinished(
+    int request_id,
+    const std::vector<FilePath>& files) {
+  // Grant the security access requested to the given files.
+  for (std::vector<FilePath>::const_iterator file = files.begin();
+       file != files.end(); ++file) {
+    ChildProcessSecurityPolicy::GetInstance()->GrantReadFile(
+        process()->id(), *file);
+  }
+  Send(new ViewMsg_EnumerateDirectoryResponse(routing_id(),
+                                              request_id,
+                                              files));
+}
+
 void RenderViewHost::LoadStateChanged(const GURL& url,
                                       net::LoadState load_state,
                                       uint64 upload_position,
                                       uint64 upload_size) {
   delegate_->LoadStateChanged(url, load_state, upload_position, upload_size);
 }
 
 bool RenderViewHost::SuddenTerminationAllowed() const {
   return sudden_termination_allowed_ || process()->sudden_termination_allowed();
 }
@@ skipping 930 matching lines @@
     LOG(DFATAL) << "Invalid checked state " << checked_state;
     return;
   }
 
   CommandState state;
   state.is_enabled = is_enabled;
   state.checked_state =
       static_cast<RenderViewCommandCheckedState>(checked_state);
   command_states_[static_cast<RenderViewCommand>(command)] = state;
 }