/// <summary>
/// 是否允许
/// </summary>
public static bool IsAllowedExtension(HttpPostedFile oFile, FileExtension[] fileEx)
{
int fileLen = oFile.ContentLength;
byte[] imgArray = new byte[fileLen];
oFile.InputStream.Read(imgArray, 0, fileLen);
MemoryStream ms = new MemoryStream(imgArray);
System.IO.BinaryReader br = new System.IO.BinaryReader(ms);
string fileclass = "";
byte buffer;
try
{
buffer = br.ReadByte();
fileclass = buffer.ToString();
buffer = br.ReadByte();
fileclass += buffer.ToString();
}
catch { }
br.Close();
ms.Close();
foreach (FileExtension fe in fileEx)
{
if (Int32.Parse(fileclass) == (int)fe) return true;
}
return false;
}
public ApplianceExistsCheck(string destinationDirectory, string fileName, FileExtension extension)
{
DestinationDirectory = destinationDirectory;
FileName = fileName;
Extension = extension;
IsValid = false;
}
FileExtension GetCurrentFileExtension()
{
if (barEditItem2.EditValue.ToString() != "cs" && barEditItem2.EditValue.ToString() != "vb")
currentFileExtension = FileExtension.Other;
else
currentFileExtension = (FileExtension)Enum.Parse(typeof(FileExtension), barEditItem2.EditValue.ToString());
return currentFileExtension;
}
/// <summary>
/// 构建文件路径。
/// 若文件存在扩展名，则将扩展名换为指定的扩展名
/// </summary>
/// <param name="fileName">文件名</param>
/// <param name="fileExtension">文件扩展名</param>
/// <returns>文件路径</returns>
public static string BuildPath(string fileName, FileExtension fileExtension)
{
var extension = FileContainer[fileExtension];
if (Path.HasExtension(fileName))
{
var ext = Path.GetExtension(fileName);
if (ext.Equals(extension, StringComparison.OrdinalIgnoreCase))
return fileName;
return Path.ChangeExtension(fileName, FileContainer[fileExtension]);
}
return fileName + FileContainer[fileExtension];
}
public static bool IsAllowedExtension(HttpPostedFile fu, FileExtension[] fileEx)
{
int contentLength = fu.ContentLength;
checked
{
byte[] buffer = new byte[contentLength - 1 + 1];
fu.InputStream.Read(buffer, 0, contentLength);
MemoryStream memoryStream = new MemoryStream(buffer);
BinaryReader binaryReader = new BinaryReader(memoryStream);
string text = "";
try
{
text = binaryReader.ReadByte().ToString();
text += binaryReader.ReadByte().ToString();
}
catch (Exception arg_62_0)
{
ProjectData.SetProjectError(arg_62_0);
ProjectData.ClearProjectError();
}
binaryReader.Close();
memoryStream.Close();
bool result;
for (int i = 0; i < fileEx.Length; i++)
{
FileExtension fileExtension = fileEx[i];
bool flag = int.Parse(text) == (int)fileExtension;
if (flag)
{
result = true;
return result;
}
}
result = false;
return result;
}
}
public void TestFilenameCreation()
{
var extension = new FileExtension("txt");
var path1 = AbsoluteFilename.FromAbsolutePath("C:\\somedir\\somefile.txt");
Assert.That(!path1.IsEmpty);
Assert.AreEqual("somefile.txt", path1.FilenameWithExtension);
var parentDir = AbsoluteDirectory.FromAbsolutePath("C:\\somedir");
Assert.AreEqual(path1.AbsoluteParent, parentDir);
Assert.IsTrue(path1.IsBelow(parentDir));
var path2 = AbsoluteFilename.FromAbsolutePath("C:\\SOMEDIR\\SOMEFILE.TXT");
Assert.That(!path1.IsEmpty);
Assert.AreEqual("SOMEFILE.TXT", path2.FilenameWithExtension);
Assert.AreEqual(path1, path2);
Assert.AreEqual(path2.AbsoluteParent, parentDir);
var path3 = parentDir.CreateFilename("somefile.txt");
Assert.That(!path3.IsEmpty);
Assert.AreEqual("somefile.txt", path3.FilenameWithExtension);
Assert.AreEqual(path1, path3);
Assert.AreEqual(path3.AbsoluteParent, parentDir);
var path4 = path3.WithChangedExtension(new FileExtension("csv"));
Assert.That(!path3.IsEmpty);
Assert.AreNotEqual("somefile.txt", path4.FilenameWithExtension);
Assert.AreEqual("somefile.csv", path4.FilenameWithExtension);
}
public static Guid? GetEncoderId(FileExtension ext)
{
switch (ext.ToString())
{
case "jpg":
case "jpeg":
return BitmapEncoder.JpegEncoderId;
case "png":
return BitmapEncoder.PngEncoderId;
case "gif":
return BitmapEncoder.GifEncoderId;
case "bmp":
return BitmapEncoder.BmpEncoderId;
default: return null;
}
}
