/// <summary>
/// Load items from the file.
/// </summary>
/// <param name="path">Full path to the file to load.</param>
/// <param name="fileType">Type of the file to load.</param>
/// <returns></returns>
public bool LoadFile(string path, SumFileType fileType)
{
bool success = false;
SumFile newSumFile = new SumFile();
if (newSumFile != null)
{
SetSumTypeFromFileType(fileType);
newSumFile.SetFileList(_checksumItemList);
int items = 0;
try
{
items = newSumFile.ReadFile(path, _currentSumType);
}
catch (Exception)
{
}
if (items > 0)
{
success = true;
// File just loaded, reset change tracking.
_checksumItemList.ResetChanges();
}
}
return(success);
}
/// <summary>
/// Try to determine (checksum) filetype for given file.
/// </summary>
/// <param name="path">Full path to the file.</param>
/// <returns>File's type if it could be determined.</returns>
/// <exception cref="ArgumentNullException">Path was null.</exception>
/// <exception cref="ArgumentException">Path was empty.</exception>
/// <exception cref="FileNotfoundException">
/// Given file was not found.
///</exception>
static public SumFileType FindFileType(string path)
{
if (path == null)
{
throw new ArgumentNullException(path);
}
if (path == String.Empty)
{
throw new ArgumentException("Path is empty", "path");
}
FileInfo fi = new FileInfo(path);
if (!fi.Exists)
{
throw new FileNotFoundException("Cannot find the file", path);
}
// First try checking for filename extension
SumFileType fileType = SumFileType.Unknown;
if (fi.Extension == ".md5")
{
fileType = SumFileType.MD5;
}
else if (fi.Extension == ".sfv")
{
fileType = SumFileType.SFV;
}
else if (fi.Extension == ".sha1")
{
fileType = SumFileType.SHA1;
}
// If we could not determine file type from filename extension,
// try to find some hints from filename itself.
if (fileType == SumFileType.Unknown)
{
string name = fi.Name;
name = name.ToLower();
if (name.Contains("md5"))
{
fileType = SumFileType.MD5;
}
else if (name.Contains("sha1"))
{
fileType = SumFileType.SHA1;
}
else if (name.Contains("sfv") || name.Contains("crc"))
{
fileType = SumFileType.SFV;
}
}
return(fileType);
}
/// <summary>
/// Convert sumfile type to sumtype.
/// </summary>
/// <param name="fileType">Filetype converted to sumtype</param>
void SetSumTypeFromFileType(SumFileType fileType)
{
switch (fileType)
{
case SumFileType.MD5:
_currentSumType = CheckSumType.MD5;
break;
case SumFileType.SFV:
_currentSumType = CheckSumType.CRC32;
break;
case SumFileType.SHA1:
_currentSumType = CheckSumType.SHA1;
break;
default:
throw new NotImplementedException();
}
}
public void CRC32File3()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/SFVFiles/file_sfv.txt");
Assert.AreEqual(SumFileType.SFV, ft);
}
public void CRC32File1()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/SFVFiles/TestFile1.sfv");
Assert.AreEqual(SumFileType.SFV, ft);
}
public void MD5File2()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/MD5Files/File_md5.txt");
Assert.AreEqual(SumFileType.MD5, ft);
}
public void MD5File1()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/MD5Files/TestFile1.md5");
Assert.AreEqual(SumFileType.MD5, ft);
}
public void ShaFile2()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/SHA1Files/file_sha1.txt");
Assert.AreEqual(SumFileType.SHA1, ft);
}
public void ShaFile1()
{
SumFileType ft = SumFileUtils.FindFileType(@"../../TestData/SHA1Files/TestFile1.sha1");
Assert.AreEqual(SumFileType.SHA1, ft);
}
public void FileNotFound()
{
// Expect user doen't have this file..
SumFileType ft = SumFileUtils.FindFileType(@"C:\unique.txt");
}
public void EmptyFileName()
{
SumFileType ft = SumFileUtils.FindFileType(String.Empty);
}
public void NullFilename()
{
SumFileType ft = SumFileUtils.FindFileType(null);
}
/// <summary>
/// Convert sumfile type to sumtype.
/// </summary>
/// <param name="fileType">Filetype converted to sumtype</param>
void SetSumTypeFromFileType(SumFileType fileType)
{
switch (fileType)
{
case SumFileType.MD5:
SumType = CheckSumType.MD5;
break;
case SumFileType.SFV:
SumType = CheckSumType.CRC32;
break;
case SumFileType.SHA1:
SumType = CheckSumType.SHA1;
break;
default:
throw new NotImplementedException();
}
}
/// <summary>
/// Load items from the file.
/// </summary>
/// <param name="path">Full path to the file to load.</param>
/// <param name="fileType">Type of the file to load.</param>
/// <returns></returns>
public bool LoadFile(string path, SumFileType fileType)
{
bool success = false;
SumFile newSumFile = new SumFile();
if (newSumFile != null)
{
SetSumTypeFromFileType(fileType);
newSumFile.SetFileList(_checksumItemList);
int items = 0;
try
{
items = newSumFile.ReadFile(path, SumType);
}
catch (Exception)
{
}
if (items > 0)
{
success = true;
// File just loaded, reset change tracking.
_checksumItemList.ResetChanges();
}
}
return success;
}
/// <summary>
/// Select correct sumtype into the sumtype combobox, based on loaded
/// sumfile type.
/// </summary>
/// <param name="fileType">File type loaded.</param>
private void SetSumTypeCombo(SumFileType fileType)
{
int ind;
switch (fileType)
{
case SumFileType.MD5:
ind = toolStripComboSumTypes.FindStringExact("MD5");
toolStripComboSumTypes.SelectedIndex = ind;
break;
case SumFileType.SFV:
ind = toolStripComboSumTypes.FindStringExact("CRC32");
toolStripComboSumTypes.SelectedIndex = ind;
break;
case SumFileType.SHA1:
ind = toolStripComboSumTypes.FindStringExact("SHA-1");
toolStripComboSumTypes.SelectedIndex = ind;
break;
default:
throw new NotImplementedException("Unknown checksum file type");
}
}
