Parse HTTP RPC request on the fly without buffering

1 files changed, 86 insertions, 0 deletions

diff --git a/src/XmlRpcDiskWriter.cc b/src/XmlRpcDiskWriter.cc
new file mode 100644
index 00000000..fdf45411
--- /dev/null
+++ b/src/XmlRpcDiskWriter.cc
@@ -0,0 +1,86 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2012 Tatsuhiro Tsujikawa
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+/* copyright --> */
+#include "XmlRpcDiskWriter.h"
+#include "DlAbortEx.h"
+#include "message.h"
+#include "ValueBase.h"
+
+namespace aria2 {
+
+namespace rpc {
+
+XmlRpcDiskWriter::XmlRpcDiskWriter()
+  : parser_(&psm_)
+{}
+
+XmlRpcDiskWriter::~XmlRpcDiskWriter()
+{}
+
+void XmlRpcDiskWriter::initAndOpenFile(off_t totalLength)
+{
+  parser_.reset();
+}
+  
+void XmlRpcDiskWriter::writeData(const unsigned char* data, size_t len,
+                                 off_t offset)
+{
+  // Return value is ignored here but handled in finalize()
+  parser_.parseUpdate(reinterpret_cast<const char*>(data), len);
+}
+
+int XmlRpcDiskWriter::finalize()
+{
+  return parser_.parseFinal(0, 0);
+}
+
+RpcRequest XmlRpcDiskWriter::getResult() const
+{
+  SharedHandle<List> params;
+  if(downcast<List>(psm_.getCurrentFrameValue())) {
+    params = static_pointer_cast<List>(psm_.getCurrentFrameValue());
+  } else {
+    params = List::g();
+  }
+  return RpcRequest(psm_.getMethodName(), params);
+}
+
+int XmlRpcDiskWriter::reset()
+{
+  return parser_.reset();
+}
+
+} // namespace rpc
+
+} // namespace aria2