void ArchiveImage(string folderPath, List <string> foundFiles)
{
if (Directory.Exists(folderPath))
{
var files = Directory.GetFiles(folderPath);
var folders = Directory.GetDirectories(folderPath);
foreach (var file in files)
{
using (var fileStream = File.OpenRead(file))
{
var fileName = Path.GetFileName(file);
var originType = Path.GetExtension(file);
var result = checker.GetFileType(fileStream);
if (string.IsNullOrEmpty(result.Extension))
{
continue;
}
foundFiles.Add(file);
}
}
foreach (var folder in folders)
{
ArchiveImage(folder, foundFiles);
}
}
}
public void ItDoesntDetectBMPs()
{
checker = new FileTypeChecker(new List <FileType>
{
new FileType("Portable Network Graphic", ".png",
new ExactFileTypeMatcher(new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A })),
new FileType("JPEG", ".jpg",
new FuzzyFileTypeMatcher(new byte?[] { 0xFF, 0xD, 0xFF, 0xE0, null, null, 0x4A, 0x46, 0x49, 0x46, 0x00 })),
new FileType("Graphics Interchange Format 87a", ".gif",
new ExactFileTypeMatcher(new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 })),
new FileType("Graphics Interchange Format 89a", ".gif",
new ExactFileTypeMatcher(new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 })),
new FileType("Portable Document Format", ".pdf", new RangeFileTypeMatcher(new ExactFileTypeMatcher(new byte[] { 0x25, 0x50, 0x44, 0x46 }), 1019))
// ... Potentially more in future
});
var fileType = checker.GetFileType(bitmap);
Assert.AreEqual(
"unknown",
fileType.Name);
}
public void ItDoesntDetectPDFs()
{
var pdf = LoadFile("Resources/pdf.pdf");
checker = new FileTypeChecker(new List <FileType>
{
new FileType("Bitmap", ".bmp", new ExactFileTypeMatcher(new byte[] { 0x42, 0x4d })),
new FileType("Portable Network Graphic", ".png",
new ExactFileTypeMatcher(new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A })),
new FileType("JPEG", ".jpg",
new FuzzyFileTypeMatcher(new byte?[] { 0xFF, 0xD, 0xFF, 0xE0, null, null, 0x4A, 0x46, 0x49, 0x46, 0x00 })),
new FileType("Graphics Interchange Format 87a", ".gif",
new ExactFileTypeMatcher(new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 })),
new FileType("Graphics Interchange Format 89a", ".gif",
new ExactFileTypeMatcher(new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }))
// ... Potentially more in future
});
var fileType = checker.GetFileType(pdf);
Assert.AreEqual(
"unknown",
fileType.Name);
}
