Added JSON-RPC over WebSocket.

Wslay library must be placed under deps/wslay.

1 files changed, 111 insertions, 0 deletions

diff --git a/src/WebSocketInteractionCommand.cc b/src/WebSocketInteractionCommand.cc
new file mode 100644
index 00000000..4daf1d25
--- /dev/null
+++ b/src/WebSocketInteractionCommand.cc
@@ -0,0 +1,111 @@
+/* <!-- 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 "WebSocketInteractionCommand.h"
+#include "SocketCore.h"
+#include "DownloadEngine.h"
+#include "RequestGroupMan.h"
+#include "WebSocketSession.h"
+#include "Logger.h"
+#include "LogFactory.h"
+#include "fmt.h"
+#include "SingletonHolder.h"
+#include "Notifier.h"
+
+namespace aria2 {
+
+namespace rpc {
+
+WebSocketInteractionCommand::WebSocketInteractionCommand
+(cuid_t cuid,
+ const SharedHandle<WebSocketSession>& wsSession,
+ DownloadEngine* e,
+ const SharedHandle<SocketCore>& socket)
+ : Command(cuid),
+   e_(e),
+   socket_(socket),
+   writeCheck_(false),
+   wsSession_(wsSession)
+{
+  SingletonHolder<Notifier>::instance()->addWebSocketSession(wsSession_);
+  e_->addSocketForReadCheck(socket_, this);
+}
+
+WebSocketInteractionCommand::~WebSocketInteractionCommand()
+{
+  e_->deleteSocketForReadCheck(socket_, this);
+  if(writeCheck_) {
+    e_->deleteSocketForWriteCheck(socket_, this);
+  }
+  SingletonHolder<Notifier>::instance()->removeWebSocketSession(wsSession_);
+}
+
+void WebSocketInteractionCommand::updateWriteCheck()
+{
+  if(wsSession_->wantWrite()) {
+    if(!writeCheck_) {
+      writeCheck_ = true;
+      e_->addSocketForWriteCheck(socket_, this);
+    }
+  } else if(writeCheck_) {
+    writeCheck_ = false;
+    e_->deleteSocketForWriteCheck(socket_, this);
+  }
+}
+
+bool WebSocketInteractionCommand::execute()
+{
+  if(e_->isHaltRequested()) {
+    return true;
+  }
+  if(wsSession_->onReadEvent() == -1 || wsSession_->onWriteEvent() == -1) {
+    if(wsSession_->closeSent() || wsSession_->closeReceived()) {
+      A2_LOG_INFO(fmt("CUID#%lld - WebSocket session terminated.", getCuid()));
+    } else {
+      A2_LOG_INFO(fmt("CUID#%lld - WebSocket session terminated"
+                      " (Possibly due to EOF).", getCuid()));
+    }
+    return true;
+  }
+  if(wsSession_->finish()) {
+    return true;
+  }
+  updateWriteCheck();
+  e_->addCommand(this);
+  return false;
+}
+
+} // namespace rpc
+
+} // namespace aria2