public AmazonDriveSeekableStream(AmazonDrive Drive, FileMetadata_Info downitem) : base()
{
this.Drive = Drive;
targetItem = downitem;
FileSize = targetItem.OrignalLength ?? 0;
if (FileSize <= 0)
{
return;
}
slots = new SlotMaster(Drive, downitem, cts.Token);
_Position = 0;
if (downitem.contentProperties?.size > ConfigAPI.FilenameChangeTrickSize && !Regex.IsMatch(downitem.name, "^[\x20-\x7e]*$"))
{
OrgFilename = downitem.name;
Config.Log.LogOut("AmazonDriveSeekableStream : <BIG FILE> temporary filename change");
Config.Log.LogOut("AmazonDriveSeekableStream : orgnal name : " + OrgFilename);
Drive.renameItem(downitem.id, ConfigAPI.temporaryFilename + downitem.id).Wait();
}
lastslot = ((downitem.OrignalLength ?? 0) - 1) / AmazonDriveStreamConfig.slotsize;
lockslot1 = AmazonDriveStreamConfig.lockslotfirstnum;
lockslot2 = lastslot - AmazonDriveStreamConfig.lockslotlastnum;
if (lockslot2 < lockslot1)
{
lockslot2 = lockslot1;
}
slots.CreateTask(0);
slots.CreateTask(lockslot2);
slots.CreateTask(lockslot1);
slots.CreateTask(lockslot1 + AmazonDriveStreamConfig.preforwardnum);
}
public static async Task <bool> EncryptFilename(string uploadfilename, string enckey, string checkpoint, CancellationToken ct = default(CancellationToken))
{
int retry = 30;
while (--retry > 0)
{
var child = (await GetChanges(checkpoint, ct).ConfigureAwait(false)).Where(x => x.name.Contains(uploadfilename)).LastOrDefault();
if (child?.status == "AVAILABLE")
{
Config.Log.LogOut("EncryptFilename");
using (var ms = new MemoryStream())
{
byte[] plain = Encoding.UTF8.GetBytes(enckey);
ms.Write(plain, 0, plain.Length);
ms.Position = 0;
using (var enc = new CryptCTR.AES256CTR_CryptStream(ms, child.id))
{
byte[] buf = new byte[ms.Length];
enc.Read(buf, 0, buf.Length);
string cryptname = "";
foreach (var c in buf)
{
cryptname += (char)('\u2800' + c);
}
int retry2 = 30;
FileMetadata_Info reItem = null;
while (--retry2 > 0)
{
try
{
if (reItem == null)
{
reItem = await Drive.renameItem(id : child.id, newname : cryptname, ct : ct).ConfigureAwait(false);
}
}
catch { }
var child2 = (await GetChanges(checkpoint: ChangeCheckpoint, ct: ct).ConfigureAwait(false)).Where(x => x.name.Contains(cryptname)).LastOrDefault();
if (reItem != null && child2?.status == "AVAILABLE")
{
AmazonDriveTree[reItem.id].IsEncrypted = CryptMethods.Method1_CTR;
AmazonDriveTree[reItem.id].ReloadCryptedMethod1();
break;
}
await Task.Delay(2000).ConfigureAwait(false);
}
return(true);
}
}
}
await Task.Delay(2000).ConfigureAwait(false);
}
return(false);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
slots?.Dispose();
}
if (OrgFilename != null)
{
Config.Log.LogOut("AmazonDriveSeekableStream : rename to orignal");
Drive.renameItem(targetItem.id, OrgFilename).Wait();
OrgFilename = null;
}
base.Dispose(disposing);
}