/// <summary>
/// Computes the MD5 checksum of the content.
/// </summary>
/// <remarks>
/// Computes the MD5 checksum of the MIME content in its canonical
/// format and then base64-encodes the result.
/// </remarks>
/// <returns>The md5sum of the content.</returns>
/// <exception cref="System.InvalidOperationException">
/// The <see cref="Content"/> is <c>null</c>.
/// </exception>
public string ComputeContentMd5()
{
if (Content == null)
{
throw new InvalidOperationException("Cannot compute Md5 checksum without a ContentObject.");
}
using (var stream = Content.Open()) {
byte[] checksum;
using (var filtered = new FilteredStream(stream)) {
if (ContentType.IsMimeType("text", "*"))
{
filtered.Add(new Unix2DosFilter());
}
using (var md5 = MD5.Create())
checksum = md5.ComputeHash(filtered);
}
var base64 = new Base64Encoder(true);
var digest = new byte[base64.EstimateOutputLength(checksum.Length)];
int n = base64.Flush(checksum, 0, checksum.Length, digest);
return(Encoding.ASCII.GetString(digest, 0, n));
}
}
private byte[] ComputeChecksum(IFileSystemDirectory root, string path)
{
using (var stream = root.ReadBinaryFile(path))
using (var bufferedStream = new BufferedStream(stream, 1048576))
using (var md5 = MD5.Create())
{
return(md5.ComputeHash(bufferedStream));
}
}
public async Task <InputFile> UploadFile(string name, byte[] data)
{
var partSize = 65536;
var file_id = DateTime.Now.Ticks;
var partedData = new Dictionary <int, byte[]>();
var parts = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(data.Length) / Convert.ToDouble(partSize)));
var remainBytes = data.Length;
for (int i = 0; i < parts; i++)
{
partedData.Add(i, data
.Skip(i * partSize)
.Take(remainBytes < partSize ? remainBytes : partSize)
.ToArray());
remainBytes -= partSize;
}
for (int i = 0; i < parts; i++)
{
var saveFilePartRequest = new Upload_SaveFilePartRequest(file_id, i, partedData[i]);
await _sender.Send(saveFilePartRequest);
await _sender.Recieve(saveFilePartRequest);
if (saveFilePartRequest.Done == false)
{
throw new InvalidOperationException($"File part {i} does not uploaded");
}
}
string md5_checksum;
using (var md5 = MD5.Create())
{
var hash = md5.ComputeHash(data);
var hashResult = new StringBuilder(hash.Length * 2);
for (int i = 0; i < hash.Length; i++)
{
hashResult.Append(hash[i].ToString("x2"));
}
md5_checksum = hashResult.ToString();
}
var inputFile = new InputFileConstructor(file_id, parts, name, md5_checksum);
return(inputFile);
}
public static string GetMd5String(string source)
{
using (var md = SystemMd5.Create())
{
byte[] bytes = Encoding.UTF8.GetBytes(source);
byte[] buffer2 = md.ComputeHash(bytes);
StringBuilder builder = new StringBuilder();
foreach (byte num in buffer2)
{
builder.Append(num.ToString("x2"));
}
return(builder.ToString());
}
}
private static byte[] MD5File(string fname)
{
try
{
using (FileStream fs = new FileStream(fname, FileMode.Open, FileAccess.Read))
using (MD5 md5 = MD5.Create())
{
return(md5.ComputeHash(fs));
}
}
catch
{
return(null);
}
}
/// <summary>
/// Gets a MD5 hash.
/// </summary>
/// <param name="input">Input</param>
/// <returns>Hashed input</returns>
public static string GetMD5Hash(string input)
{
byte[] data = null;
var sBuilder = new StringBuilder();
using (var md5Hash = MD5Hasher.Create())
data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input));
for (var i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
return(sBuilder.ToString());
}
private static string ComputeMD5(string path)
{
using (var md5 = MD5.Create())
{
using (var input = File.OpenRead(path))
{
var sb = new StringBuilder();
foreach (var b in md5.ComputeHash(input))
{
sb.Append(b.ToString("x2"));
}
return(sb.ToString());
}
}
}
public async Task <InputFileConstructor> UploadFile(string name, Stream content)
{
var buffer = new byte[65536];
var fileId = BitConverter.ToInt64(Helpers.GenerateRandomBytes(8), 0);
int partsCount = 0;
int bytesRead;
while ((bytesRead = content.Read(buffer, 0, buffer.Length)) > 0)
{
var request = new SaveFilePartRequest(fileId, partsCount, buffer, 0, bytesRead);
await SendRpcRequest(request);
partsCount++;
if (request.done == false)
{
throw new InvalidOperationException($"Failed to upload file({name}) part: {partsCount})");
}
}
var md5Checksum = string.Empty;
if (content.CanSeek)
{
content.Position = 0;
using (var md5 = MD5.Create())
{
var hash = md5.ComputeHash(content);
var hashResult = new StringBuilder(hash.Length * 2);
foreach (byte b in hash)
{
hashResult.Append(b.ToString("x2"));
}
md5Checksum = hashResult.ToString();
}
}
return(new InputFileConstructor(fileId, partsCount, name, md5Checksum));
}
public static string Encrypt(string str)
{
return(BitConverter.ToString(SysMD5.Create().ComputeHash(Encoding.Default.GetBytes(str))).Replace("-", "").ToLower());
}
