public string GetHash(HashType hashType)
{
CheckInternalState();
string output = string.Empty;
IHashMaker hasher = new HashMaker();
switch (hashType)
{
case HashType.MD5:
if (Settings.Default.HoldBufferInMemory)
{
output = hasher.GetMD5(_InternalBuffer);
}
else
{
output = hasher.GetMD5(_InternalFilePath);
}
break;
case HashType.SHA1:
if (Settings.Default.HoldBufferInMemory)
{
output = hasher.GetSHA1(_InternalBuffer);
}
else
{
output = hasher.GetSHA1(_InternalFilePath);
}
break;
case HashType.SHA256:
if (Settings.Default.HoldBufferInMemory)
{
output = hasher.GetSHA256(_InternalBuffer);
}
else
{
output = hasher.GetSHA256(_InternalFilePath);
}
break;
case HashType.PreHash:
output = hasher.GetPreHash(_InternalFilePath);
break;
}
return(output);
}
static void Main(string[] args)
{
int totalProcessed = 0;
int totalHashed = 0;
int totalFailed = 0;
IEnumerable <FilesDueForHash_Result> filesToHash = GetNextFiles();
do
{
Parallel.ForEach(filesToHash, fileToHash =>
{
Console.WriteLine("Processing: " + fileToHash.FullPath);
try
{
if (File.Exists(fileToHash.FullPath) &&
fileToHash.Length > 0)
{
Stream fileStream = File.OpenRead(fileToHash.FullPath);
IHashMaker hasher = new HashMaker();
string preHash = hasher.GetPreHash(fileToHash.FullPath);
string md5 = hasher.GetMD5(fileStream);
string sha1 = hasher.GetSHA1(fileStream);
using (DbModelContainer db = new DbModelContainer())
{
db.Database.CommandTimeout = 60;
TrackedFile fileToUpdate = db.TrackedFiles.Find(fileToHash.Id);
fileToUpdate.PreHash = preHash;
fileToUpdate.MD5 = md5;
fileToUpdate.SHA1 = sha1;
db.SaveChanges();
}
Interlocked.Increment(ref totalHashed);
}
}
catch (Exception)
{
//mark it as failed
Interlocked.Increment(ref totalFailed);
}
finally
{
Interlocked.Increment(ref totalProcessed);
using (DbModelContainer db = new DbModelContainer())
{
db.Database.CommandTimeout = 60;
TrackedFile file = db.TrackedFiles.Find(fileToHash.Id);
file.HashAttempted = DateTime.Now;
db.SaveChanges();
}
}
});
filesToHash = GetNextFiles();
} while (filesToHash.Count() > 0);
}