private WriteFileContextForCreationWithUpload(ContextAdapter creationContext, string fileId, bool hasData, byte preReadByte)
{
_responseHeaders = new Dictionary <string, string>();
_responseStream = new MemoryStream();
_fileId = fileId;
FileContentIsAvailable = hasData;
_context = new ContextAdapter
{
CancellationToken = creationContext.CancellationToken,
Configuration = creationContext.Configuration,
HttpContext = creationContext.HttpContext,
Request = CreateWriteFileRequest(creationContext, fileId, preReadByte),
Response = CreateWriteFileResponse(),
#if netfull
OwinContext = creationContext.OwinContext
#endif
};
}
private RequestAdapter CreateWriteFileRequest(ContextAdapter context, string fileId, byte preReadByte)
{
var uriBuilder = new UriBuilder(context.Request.RequestUri);
uriBuilder.Path = uriBuilder.Path + "/" + fileId;
var writeFileRequest = new RequestAdapter(context.Configuration.UrlPath)
{
Body = new ReadOnlyStreamWithPreReadByte(context.Request.Body, preReadByte),
Method = context.Request.Method,
RequestUri = uriBuilder.Uri,
Headers = context.Request.Headers
};
writeFileRequest.Headers[HeaderConstants.UploadOffset] = new List <string>(1)
{
"0"
};
writeFileRequest.Headers.Remove(HeaderConstants.UploadLength);
return(writeFileRequest);
}
internal static async Task <WriteFileContextForCreationWithUpload> FromCreationContext(ContextAdapter creationContext, string fileId)
{
// Check if there is any file content available in the request.
var buffer = new byte[1];
var hasData = await creationContext.Request.Body.ReadAsync(buffer, 0, 1) > 0;
return(new WriteFileContextForCreationWithUpload(creationContext, fileId, hasData, buffer[0]));
}