2009-01-25 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

	Added experimental built-in HTTP server. Currently, when a
	client accesses to the server, it responds with the current
	download progress. By default, it is disabled. To enable the
	server, give --enable-http-server option.  To change the default
	port number for the server to listen to, use
	--http-server-listen-port option.
	The response HTML is very simple and refreshes it self each 1
	second.  Because of this refresh, you see flicker in normal web
	browser such as Firefox.  I recommend to use console-based
	browser such as elinks, w3m.  To connect to the server, run
	'elinks http://localhost:6800/' while running aria2. Please
	replace port number '6800'(which is default) with your
	preference.	
	* src/DownloadEngineFactory.cc
	* src/HttpHeader.cc
	* src/HttpHeader.h
	* src/HttpHeaderProcessor.cc
	* src/HttpHeaderProcessor.h
	* src/HttpListenCommand.cc
	* src/HttpListenCommand.h
	* src/HttpServer.cc
	* src/HttpServer.h
	* src/HttpServerCommand.cc
	* src/HttpServerCommand.h
	* src/HttpServerResponseCommand.cc
	* src/HttpServerResponseCommand.h
	* src/Makefile.am
	* src/OptionHandlerFactory.cc
	* src/Util.cc
	* src/Util.h
	* src/help_tags.h
	* src/option_processing.cc
	* src/prefs.cc
	* src/prefs.h
	* src/usage_text.h
	* test/HttpHeaderProcessorTest.cc
	* test/UtilTest.cc

1 files changed, 96 insertions, 0 deletions

diff --git a/src/HttpServer.cc b/src/HttpServer.cc
new file mode 100644
index 00000000..14cf6192
--- /dev/null
+++ b/src/HttpServer.cc
@@ -0,0 +1,96 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2009 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 "HttpServer.h"
+#include "HttpHeader.h"
+#include "SocketCore.h"
+#include "HttpHeaderProcessor.h"
+#include "DlAbortEx.h"
+#include "message.h"
+#include "Util.h"
+
+namespace aria2 {
+
+HttpServer::HttpServer(const SharedHandle<SocketCore>& socket,
+		       DownloadEngine* e):
+  _socket(socket),
+  _socketBuffer(socket),
+  _e(e),
+  _headerProcessor(new HttpHeaderProcessor())
+{}
+
+HttpServer::~HttpServer() {}
+
+SharedHandle<HttpHeader> HttpServer::receiveRequest()
+{
+  size_t size = 512;
+  unsigned char buf[size];
+  _socket->peekData(buf, size);
+  if(size == 0 && !(_socket->wantRead() || _socket->wantWrite())) {
+    throw DlAbortEx(EX_EOF_FROM_PEER);
+  }
+  _headerProcessor->update(buf, size);
+  if(!_headerProcessor->eoh()) {
+    _socket->readData(buf, size);
+    return SharedHandle<HttpHeader>();
+  }
+  size_t putbackDataLength = _headerProcessor->getPutBackDataLength();
+  size -= putbackDataLength;
+  _socket->readData(buf, size);
+
+  return _headerProcessor->getHttpRequestHeader();
+}
+
+void HttpServer::feedResponse(const std::string& text)
+{
+  std::string header = "HTTP/1.0 200 OK\r\n"
+    "Content-Type: text/html\r\n"
+    "Content-Length: "+Util::uitos(text.size())+"\r\n"
+    "Connection: close\r\n"
+    "\r\n";
+  _socketBuffer.feedSendBuffer(header);
+  _socketBuffer.feedSendBuffer(text);
+}
+
+ssize_t HttpServer::sendResponse()
+{
+  return _socketBuffer.send();
+}
+
+bool HttpServer::sendBufferIsEmpty() const
+{
+  return _socketBuffer.sendBufferIsEmpty();
+}
+
+} // namespace aria2