The client now downloads a zipped server list file from pokerth.net. This is parsed and the first server entry is used for now. Error handling still missing. boost::iostreams now required.

2008-04-19 11:48:09 +00:00
parent 17a7a19298
commit 7a157b682a
10 changed files with 380 additions and 11 deletions
@@ -0,0 +1,127 @@
+/***************************************************************************
+ *   Copyright (C) 2008 by Lothar May                                      *
+ *                                                                         *
+ *   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.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <net/socket_helper.h>
+#include <net/downloadhelper.h>
+#include <curl/curl.h>
+
+#include <cstdio>
+
+using namespace std;
+
+struct DownloadData
+{
+	CURL *curlHandle;
+	CURLM *curlMultiHandle;
+	FILE *targetFile;
+};
+
+
+DownloadHelper::DownloadHelper()
+{
+	m_data.reset(new DownloadData);
+	m_data->curlHandle = NULL;
+	m_data->curlMultiHandle = NULL;
+	m_data->targetFile = NULL;
+}
+
+DownloadHelper::~DownloadHelper()
+{
+	Cleanup();
+}
+
+static size_t curlWriter(void *ptr, size_t size, size_t nmemb, void *stream)
+{
+	int written = fwrite(ptr, size, nmemb, (FILE *)stream);
+	return written;
+}
+
+void
+DownloadHelper::Init(const string &url, const string &targetFileName)
+{
+	m_data->targetFile = fopen(targetFileName.c_str(), "wb");
+	m_data->curlHandle = curl_easy_init();
+	m_data->curlMultiHandle = curl_multi_init();
+
+	// TODO throw exception on error
+
+	curl_easy_setopt(m_data->curlHandle, CURLOPT_URL, url.c_str());
+	curl_easy_setopt(m_data->curlHandle, CURLOPT_WRITEFUNCTION, curlWriter);
+	curl_easy_setopt(m_data->curlHandle, CURLOPT_WRITEDATA, m_data->targetFile);
+
+	curl_multi_add_handle(m_data->curlMultiHandle, m_data->curlHandle);
+}
+
+bool
+DownloadHelper::Process()
+{
+	bool retVal = false;
+	int runningHandles;
+	while(CURLM_CALL_MULTI_PERFORM ==
+		curl_multi_perform(m_data->curlMultiHandle, &runningHandles));
+
+	if (runningHandles)
+	{
+		struct timeval timeout;
+		fd_set readSet;
+		fd_set writeSet;
+		fd_set exceptSet;
+		int maxfd;
+
+		FD_ZERO(&readSet);
+		FD_ZERO(&writeSet);
+		FD_ZERO(&exceptSet);
+
+		timeout.tv_sec = 0;
+		timeout.tv_usec = RECV_TIMEOUT_MSEC * 1000;
+
+		curl_multi_fdset(m_data->curlMultiHandle, &readSet, &writeSet, &exceptSet, &maxfd);
+
+		if (maxfd >= 0)
+			int selectResult = select(maxfd+1, &readSet, &writeSet, &exceptSet, &timeout);
+		// TODO throw exception on error
+	}
+	else
+	{
+		Cleanup();
+		retVal = true;
+	}
+	return retVal;
+}
+
+void
+DownloadHelper::Cleanup()
+{
+	if (m_data->curlMultiHandle)
+	{
+		curl_multi_cleanup(m_data->curlMultiHandle);
+		m_data->curlMultiHandle = NULL;
+	}
+	if (m_data->curlHandle)
+	{
+		curl_easy_cleanup(m_data->curlHandle);
+		m_data->curlHandle = NULL;
+	}
+	if (m_data->targetFile)
+	{
+		fclose(m_data->targetFile);
+		m_data->targetFile = NULL;
+	}
+}
+