1 files changed, 79 insertions, 0 deletions
diff --git a/content/child/npapi/plugin_stream_win.cc b/content/child/npapi/plugin_stream_win.cc
new file mode 100644
index 0000000..af55f2f
--- /dev/null
+++ b/content/child/npapi/plugin_stream_win.cc
@@ -0,0 +1,79 @@
+// Copyright (c) 2012 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/child/npapi/plugin_stream.h"
+
+#include "base/logging.h"
+#include "content/child/npapi/plugin_instance.h"
+
+namespace content {
+
+void PluginStream::ResetTempFileHandle() {
+  temp_file_handle_ = INVALID_HANDLE_VALUE;
+}
+
+void PluginStream::ResetTempFileName() {
+  temp_file_name_[0] = '\0';
+}
+
+void PluginStream::WriteAsFile() {
+  if (RequestedPluginModeIsAsFile())
+    instance_->NPP_StreamAsFile(&stream_, temp_file_name_);
+}
+
+size_t PluginStream::WriteBytes(const char *buf, size_t length) {
+  DWORD bytes;
+
+  if (!WriteFile(temp_file_handle_, buf, length, &bytes, 0))
+    return 0U;
+
+  return static_cast<size_t>(bytes);
+}
+
+bool PluginStream::OpenTempFile() {
+  DCHECK_EQ(INVALID_HANDLE_VALUE, temp_file_handle_);
+
+  // The reason for using all the Ascii versions of these filesystem
+  // calls is that the filename which we pass back to the plugin
+  // via NPAPI is an ascii filename.  Otherwise, we'd use wide-chars.
+  //
+  // TODO:
+  // This is a bug in NPAPI itself, and it needs to be fixed.
+  // The case which will fail is if a user has a multibyte name,
+  // but has the system locale set to english.  GetTempPathA will
+  // return junk in this case, causing us to be unable to open the
+  // file.
+
+  char temp_directory[MAX_PATH];
+  if (GetTempPathA(MAX_PATH, temp_directory) == 0)
+    return false;
+  if (GetTempFileNameA(temp_directory, "npstream", 0, temp_file_name_) == 0)
+    return false;
+  temp_file_handle_ = CreateFileA(temp_file_name_,
+                                  FILE_ALL_ACCESS,
+                                  FILE_SHARE_READ,
+                                  0,
+                                  CREATE_ALWAYS,
+                                  FILE_ATTRIBUTE_NORMAL,
+                                  0);
+  if (temp_file_handle_ == INVALID_HANDLE_VALUE) {
+    ResetTempFileName();
+    return false;
+  }
+  return true;
+}
+
+void PluginStream::CloseTempFile() {
+  if (!TempFileIsValid())
+    return;
+
+  CloseHandle(temp_file_handle_);
+  ResetTempFileHandle();
+}
+
+bool PluginStream::TempFileIsValid() const {
+  return temp_file_handle_ != INVALID_HANDLE_VALUE;
+}
+
+}  // namespace content