public CryptCarotDAV_CryptStream(Stream baseStream) : base()
{
innerStream = new HashStream(baseStream, new SHA256CryptoServiceProvider());
Array.Copy(_salt, header, 24);
aes = new AesCryptoServiceProvider();
aes.BlockSize = BlockSize;
aes.KeySize = KeySize;
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.Zeros;
aes.Key = Key;
aes.IV = IV;
encryptor = aes.CreateEncryptor();
cryptStream = new CryptoStream(innerStream, encryptor, CryptoStreamMode.Read);
if (innerStream.Length > 0)
{
patlen = (int)((innerStream.Length - 1) % BlockSizeByte + 1);
}
else
{
patlen = BlockSizeByte;
}
cryptlen = innerStream.Length + BlockSizeByte - patlen;
}
public async Task <FileMetadata_Info> uploadFile(string filename, string parent_id = null, string uploadname = null, string uploadkey = null, PoschangeEventHandler process = null, CancellationToken ct = default(CancellationToken))
{
int transbufsize = Config.UploadBufferSize;
if (Config.UploadLimit < transbufsize)
{
transbufsize = (int)Config.UploadLimit;
}
if (transbufsize < 1 * 1024)
{
transbufsize = 1 * 1024;
}
if (Config.UploadTrick1)
{
transbufsize = 256 * 1024;
}
Config.Log.LogOut("\t[uploadFile] " + filename);
string error_str;
string HashStr = "";
using (var client = new HttpClient())
{
client.Timeout = TimeSpan.FromDays(1);
try
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Authkey.access_token);
var content = new MultipartFormDataContent();
DataContractJsonSerializer jsonSer = new DataContractJsonSerializer(typeof(ItemUpload_Info));
// Serializerを使ってオブジェクトをMemoryStream に書き込み
MemoryStream ms = new MemoryStream();
var short_filename = Path.GetFileName(filename);
if (uploadname == null)
{
uploadname = (Config.UseEncryption) ? short_filename + ".enc" : short_filename;
if (uploadkey == null)
{
uploadkey = short_filename;
}
}
else
{
if (uploadkey == null)
{
uploadkey = Path.GetFileNameWithoutExtension(uploadname);
}
}
jsonSer.WriteObject(ms, new ItemUpload_Info
{
name = uploadname,
kind = "FILE",
parents = string.IsNullOrEmpty(parent_id) ? null : new string[] { parent_id }
});
ms.Position = 0;
// StreamReader で StringContent (Json) をコンストラクトします。
StreamReader sr = new StreamReader(ms);
content.Add(new StringContent(sr.ReadToEnd(), System.Text.Encoding.UTF8, "application/json"), "metadata");
using (var file = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read, 256 * 1024))
{
HashStream contStream = null;
Stream cryptStream = null;
StreamContent fileContent = null;
IHashStream hasher = null;
if (Config.UseEncryption)
{
if (Config.CryptMethod == CryptMethods.Method1_CTR)
{
cryptStream = new CryptCTR.AES256CTR_CryptStream(file, uploadkey);
contStream = new HashStream(cryptStream, new MD5CryptoServiceProvider());
hasher = contStream;
}
if (Config.CryptMethod == CryptMethods.Method2_CBC_CarotDAV)
{
cryptStream = new CryptCarotDAV.CryptCarotDAV_CryptStream(file);
contStream = new HashStream(cryptStream, new MD5CryptoServiceProvider());
hasher = contStream;
}
}
else
{
contStream = new HashStream(file, new MD5CryptoServiceProvider());
hasher = contStream;
}
using (cryptStream)
using (contStream)
using (var thstream = new ThrottleUploadStream(contStream, ct))
using (var f = new PositionStream(thstream))
{
if (process != null)
{
f.PosChangeEvent += process;
}
fileContent = new StreamContent(f, transbufsize);
fileContent.Headers.ContentLength = f.Length;
fileContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
content.Add(fileContent, "content", Path.GetFileName(filename));
using (fileContent)
{
if (Config.UploadTrick1)
{
if (DelayUploadReset != null)
{
if (Interlocked.CompareExchange(ref Config.UploadLimitTemp, Config.UploadLimit, 10 * 1024) == 10 * 1024)
{
DelayUploadReset = Task.Delay(TimeSpan.FromSeconds(10)).ContinueWith((task) =>
{
Interlocked.Exchange(ref Config.UploadLimit, Config.UploadLimitTemp);
DelayUploadReset = null;
});
}
}
}
var response = await client.PostAsync(
Config.contentUrl + "nodes?suppress=deduplication",
content,
ct).ConfigureAwait(false);
HashStr = hasher.Hash.ToLower();
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
// Above three lines can be replaced with new helper method in following line
// string body = await client.GetStringAsync(uri);
var ret = ParseResponse <FileMetadata_Info>(responseBody);
if (ret.contentProperties?.md5 != HashStr)
{
throw new AmazonDriveUploadException(HashStr);
}
return(ret);
}
}
}
}
catch (AmazonDriveUploadException)
{
throw;
}
catch (HttpRequestException ex)
{
error_str = ex.Message;
Config.Log.LogOut("\t[uploadFile] " + error_str);
throw new AmazonDriveUploadException(HashStr, ex);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
error_str = ex.ToString();
Config.Log.LogOut("\t[uploadFile] " + error_str);
throw;
}
}
}
