WIP

2020-02-13 13:00:22 +01:00
parent e274c0ca89
commit 876fb12fe4
192 changed files with 1046 additions and 676 deletions
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "utils/Path.hpp"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <array>
+#include <fstream>
+
+#include <boost/crc.hpp>  // for boost::crc_32_type
+#include <boost/tokenizer.hpp>
+
+#include "utils/Exception.hpp"
+#include "utils/Logger.hpp"
+
+void
+computeCrc(const std::filesystem::path& p, std::vector<unsigned char>& crc)
+{
+	using crc_type = boost::crc_32_type;
+	crc_type result;
+
+	std::ifstream  ifs( p.string().c_str(), std::ios_base::binary );
+
+	if (ifs)
+	{
+		do
+		{
+			std::array<char,1024>	buffer;
+
+			ifs.read( buffer.data(), buffer.size() );
+			result.process_bytes( buffer.data(), ifs.gcount() );
+		}
+		while ( ifs );
+	}
+	else
+	{
+		LMS_LOG(DBUPDATER, ERROR) << "Failed to open file '" << p.string() << "'";
+		throw LmsException("Failed to open file '" + p.string() + "'" );
+	}
+
+
+	// Copy the result into a vector of unsigned char
+	const crc_type::value_type checksum = result.checksum();
+	for (std::size_t i = 0; (i+1)*8 <= crc_type::bit_count; i++)
+	{
+		const unsigned char* data = reinterpret_cast<const unsigned char*>( &checksum );
+		crc.push_back(data[i]);
+	}
+}
+
+bool
+ensureDirectory(const std::filesystem::path& dir)
+{
+	if (std::filesystem::exists(dir))
+		return std::filesystem::is_directory(dir);
+	else
+		return std::filesystem::create_directory(dir);
+}
+
+Wt::WDateTime
+getLastWriteTime(const std::filesystem::path& file)
+{
+	struct stat sb {};
+
+	if (stat(file.string().c_str(), &sb) == -1)
+		throw LmsException("Failed to get stats on file '" + file.string() + "'" );
+
+	return Wt::WDateTime::fromTime_t(sb.st_mtime);
+}
+