private void AddFiles(IList <string> paths)
{
var elements = new List <HashSignatureElement>();
foreach (string path in paths)
{
var file = new FileItem(new FileInfo(path));
string sum = Checksums.GetChecksumFromFile(file, Checksums.ChecksumType.SHA1);
elements.Add(new HashSignatureElement(file, sum));
}
files = files.Union(elements, new HashSignatureElementComparer()).ToList();
modified = true;
}
public (bool detected, Detection detection) Scan(FileItem file)
{
var elementsMatchingSize = new List <HashSignatureElement>();
string sha1 = string.Empty;
if (this.Status == DetectorStatus.UNUSED)
{
logger.Error("{0} detector in use when it should have been pruned", this.Name);
return(false, null);
}
if (this.Status == DetectorStatus.UNINITIALIZED)
{
string message = string.Format(
"Trying to use the {0} detector while it is uninitialized",
this.Name);
logger.Error(message);
throw new Exception(message);
}
/* First check if any elements match the size of the file being scanned */
foreach (var element in elements)
{
if (element.Length == file.Length)
{
logger.Trace("Size match: {0} matches size of {1}", file.AbsolutePath, element.Name);
elementsMatchingSize.Add(element);
}
}
if (elementsMatchingSize.Count > 0)
{
sha1 = Checksums.GetChecksumFromFile(file, Checksums.ChecksumType.SHA1);
foreach (var element in elements)
{
if (sha1.Equals(element.SHA1))
{
logger.Trace("Exact match: {0} matches hash of {1}", file.AbsolutePath, element.Name);
logger.Trace("Matching SHA1 sum was {0}", sha1);
return(true, new Detection(this.Type, this.Name, string.Format("Hash matches {0}", element.Name)));
}
}
}
return(false, null);
}
private void AddFiles(IList <string> paths)
{
var elements = new List <SignatureElement>();
foreach (string path in paths)
{
var info = new FileInfo(path);
var file = new FileItem(info)
{
Owner = Paths.GetOwner(info)
};
string sum = Checksums.GetChecksumFromFile(file, Checksums.ChecksumType.SHA1);
elements.Add(new HashSignatureElement(file, sum));
}
task.Elements =
task.Elements.Union(elements, new SignatureElementComparer()).ToList();
}
