2007-10-12 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>

	Implemented BitTorrent/http/ftp integrated download.
	I've rewritten lots of files and now some headers have forward
	class declarations to reduce compile time.
	The implementation is extremely alpha stage, I recommend to use this
	for testing purpose only.

1 files changed, 101 insertions, 0 deletions

diff --git a/src/PeerReceiveHandshakeCommand.cc b/src/PeerReceiveHandshakeCommand.cc
new file mode 100644
index 00000000..81d9fb72
--- /dev/null
+++ b/src/PeerReceiveHandshakeCommand.cc
@@ -0,0 +1,101 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2006 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 "PeerReceiveHandshakeCommand.h"
+#include "PeerConnection.h"
+#include "DownloadEngine.h"
+#include "BtHandshakeMessage.h"
+#include "Util.h"
+#include "BtContext.h"
+#include "DlAbortEx.h"
+#include "PeerInteractionCommand.h"
+#include "message.h"
+
+PeerReceiveHandshakeCommand::PeerReceiveHandshakeCommand(int32_t cuid,
+							 const PeerHandle& peer,
+							 DownloadEngine* e,
+							 const SocketHandle& s):
+  PeerAbstractCommand(cuid, peer, e, s),
+  _peerConnection(new PeerConnection(cuid, s, e->option)),
+  _lowestSpeedLimit(20*1024)
+{}
+
+PeerReceiveHandshakeCommand::~PeerReceiveHandshakeCommand() {}
+
+bool PeerReceiveHandshakeCommand::exitBeforeExecute()
+{
+  return e->isHaltRequested();
+}
+
+bool PeerReceiveHandshakeCommand::executeInternal()
+{
+  unsigned char data[BtHandshakeMessage::MESSAGE_LENGTH];
+  int32_t dataLength = BtHandshakeMessage::MESSAGE_LENGTH;
+  // ignore return value. The received data is kept in PeerConnection object
+  // because of peek = true.
+  _peerConnection->receiveHandshake(data, dataLength, true);
+  // To handle tracker's NAT-checking feature
+  if(dataLength >= 48) {
+    // check info_hash
+    string infoHash = Util::toHex(&data[28], INFO_HASH_LENGTH);
+    BtContextHandle btContext = BtRegistry::getBtContext(infoHash);
+    if(btContext.isNull() || !BT_RUNTIME(btContext)->ready()) {
+      throw new DlAbortEx("Unknown info hash %s", infoHash.c_str());
+    }
+    TransferStat tstat = PEER_STORAGE(btContext)->calculateStat();
+    if(!PIECE_STORAGE(btContext)->downloadFinished() && tstat.getDownloadSpeed() < _lowestSpeedLimit ||
+       BT_RUNTIME(btContext)->getConnections() < MAX_PEERS) {
+      peer->reconfigure(btContext->getPieceLength(), btContext->getTotalLength());
+      PEER_STORAGE(btContext)->addIncomingPeer(peer);
+
+      peer->cuid = cuid;
+
+      PeerInteractionCommand* command =
+	new PeerInteractionCommand(cuid,
+				   btContext->getOwnerRequestGroup(),
+				   peer,
+				   e,
+				   btContext,
+				   socket,
+				   PeerInteractionCommand::RECEIVER_WAIT_HANDSHAKE,
+				   _peerConnection);
+      e->commands.push_back(command);
+      logger->debug(MSG_INCOMING_PEER_CONNECTION, cuid, peer->cuid);
+    }
+    return true;
+  } else {
+    e->commands.push_back(this);
+    return false;
+  }
+}