private void WriteArchiveAndReadBack()
{
// write the contents of the files to the record
using (var fs = new FileStream(archivePath, FileMode.Create))
{
var archive = new SAFArchive(fs, SAFMode.Write, sourcePath, true);
archive.WriteDirectoryToArchive();
}
// read them back.
using (var fs = new FileStream(archivePath, FileMode.Open))
{
var archive = new SAFArchive(fs, SAFMode.Read, extractPath);
archive.ReadAllEntriesToDisk();
}
}
public void VerifyChecksumOperation()
{
// create the archive normally
using (var fs = new FileStream(archivePath, FileMode.Create))
{
var archive = new SAFArchive(fs, SAFMode.Write, sourcePath, true);
archive.WriteDirectoryToArchive();
}
// tamper with the archive.
using (var fs = new FileStream(archivePath, FileMode.Open))
{
var archiveToTamperWith = new SAFArchive(fs, SAFMode.Read, extractPath);
// find a file entry
while (true)
{
var header = archiveToTamperWith.ReadNextHeader();
if (header.Type == SAFEntryType.File)
{
break; // we don't need to skip - directorys have no length.
}
}
// we're now on a file. Invert the second byte.
var loc = fs.Position;
byte byteToInvert = (byte)fs.ReadByte();
byte invertedValue = (byte)(0xFF ^ byteToInvert);
// reset our position
fs.Position = loc;
fs.WriteByte(invertedValue);
// flush
fs.Flush();
}
// try to extract, this should throw an IO Error.
using (var fs = new FileStream(archivePath, FileMode.Open))
{
var corruptedArchive = new SAFArchive(fs, SAFMode.Read, extractPath);
Assert.Throws <IOException>(() => corruptedArchive.ReadAllEntriesToDisk());
}
}
public void TestRelativePaths(string relativePath, bool useLeadingDotSlash, char dirSeparator)
{
// we build all paths under the designated relative path, for easy cleanup.
var targetPath = RelativeDir + dirSeparator + relativePath;
// confirm the path isn't rooted
if (Path.IsPathRooted(targetPath))
{
throw new ArgumentException("Path under test should be relative.");
}
// if we use the leading dotslash, prepend .\ (or ./) to path (as might be fed in if paths were generated via hiting tab
// on the command line
if (useLeadingDotSlash)
{
targetPath = "." + dirSeparator + targetPath;
}
// build the directory structure (we can use full paths here)
Directory.CreateDirectory(targetPath);
// create the file target
File.WriteAllText(targetPath + dirSeparator + "testFile.bin", "I EXIST");
// do saf operations
using (var fs = new FileStream(archivePath, FileMode.Create))
{
var archive = new SAFArchive(fs, SAFMode.Write, targetPath);
archive.WriteDirectoryToArchive();
}
using (var fs = new FileStream(archivePath, FileMode.Open))
{
var archive = new SAFArchive(fs, SAFMode.Read, extractPath);
archive.ReadAllEntriesToDisk();
}
// test that our file exists in the expected path (we fed in the target path to the archive root, so it won't show here)
var extractedPath = Path.Combine(extractPath, "testFile.bin");
Assert.True(File.Exists(extractedPath), "Extract path test failed.");
}
public void CheckFileHeader()
{
// write the contents of the files to the record
using (var fs = new FileStream(archivePath, FileMode.Create))
{
var archive = new SAFArchive(fs, SAFMode.Write, sourcePath, true);
archive.WriteDirectoryToArchive();
// confirm the archive header was set correctly
Assert.Equal(archive.SAFArchiveHeader, SAFArchive.SAF_ARCHIVE_HEADER_STRING);
}
// read them back.
using (var fs = new FileStream(archivePath, FileMode.Open))
{
var archive = new SAFArchive(fs, SAFMode.Read, extractPath);
archive.ReadAllEntriesToDisk();
// confirm the header was read correctly
Assert.Equal(archive.SAFArchiveHeader, SAFArchive.SAF_ARCHIVE_HEADER_STRING);
}
}
