internal B2File(B2Client b2Client, B2FileInfo file)
{
_b2Client = b2Client;
_file = file;
State = B2FileState.Present;
}
internal B2File(B2Client b2Client, string bucketId, string newName)
{
_b2Client = b2Client;
_file = new B2FileInfo
{
Action = B2FileAction.Upload,
FileName = newName,
BucketId = bucketId,
ContentType = B2Constants.AutoContenType
};
State = B2FileState.New;
}
public async Task<B2File> UploadFileDataAsync(FileInfo file)
{
ThrowIfNot(B2FileState.New);
B2UploadConfiguration config = _b2Client.FetchUploadConfig(BucketId);
try
{
using (var fs = file.OpenRead())
{
string sha1Hash;
using (SHA1 sha1 = SHA1.Create())
sha1Hash = BitConverter.ToString(sha1.ComputeHash(fs)).Replace("-", "");
fs.Seek(0, SeekOrigin.Begin);
B2FileInfo result = await _b2Client.Communicator.UploadFile(config.UploadUrl, config.AuthorizationToken, fs, sha1Hash, FileName, ContentType, FileInfo, _uploadNotifyDelegate);
if (result.ContentSha1 != sha1Hash)
throw new ArgumentException("Bad transfer - hash mismatch");
_file = result;
}
State = B2FileState.Present;
}
finally
{
_b2Client.ReturnUploadConfig(config);
}
return this;
}
private void ThrowIfNot(B2FileState desiredState)
{
if (State != desiredState)
throw new InvalidOperationException($"The B2 File, {FileName}, was {State} and not {desiredState} (id: {FileId})");
}
public override async Task<bool> DeleteAsync()
{
ThrowIfNot(B2FileState.Present);
bool res = await _b2Client.Communicator.DeleteFile(FileName, FileId);
State = B2FileState.Deleted;
return res;
}
public async Task<B2File> UploadDataAsync(Stream source)
{
ThrowIfNot(B2FileState.New);
B2UploadConfiguration config = _b2Client.FetchUploadConfig(BucketId);
try
{
B2FileInfo result = await _b2Client.Communicator.UploadFile(config.UploadUrl, config.AuthorizationToken, source, ContentSha1, FileName, ContentType, FileInfo, _uploadNotifyDelegate);
if (result.ContentSha1 != ContentSha1)
throw new ArgumentException("Bad transfer - hash mismatch");
_file = result;
State = B2FileState.Present;
}
finally
{
_b2Client.ReturnUploadConfig(config);
}
return this;
}