private static async Task <Content> UploadTextInternalAsync(string text, UploadData uploadData, ODataRequest requestData,
CancellationToken cancellationToken, ServerContext server = null)
{
// force set values
if (text.Length > ClientContext.Current.ChunkSizeInBytes)
{
throw new InvalidOperationException($"Cannot upload a text that longer than the chunk size " +
$"({ClientContext.Current.ChunkSizeInBytes}).");
}
if (uploadData.FileLength == 0)
{
uploadData.FileLength = text.Length;
}
uploadData.FileText = text;
dynamic uploadedContent = null;
var model = JsonHelper.GetJsonPostModel(uploadData.ToDictionary());
var httpContent = new StringContent(model);
httpContent.Headers.ContentType = new MediaTypeHeaderValue(JsonContentMimeType);
await ProcessWebResponseAsync(requestData.ToString(), HttpMethod.Post, server, httpContent,
async response =>
{
if (response != null)
{
var rs = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
uploadedContent = JsonHelper.Deserialize(rs);
}
}, cancellationToken).ConfigureAwait(false);
if (uploadedContent == null)
{
return(null);
}
int contentId = uploadedContent.Id;
var content = Content.Create(contentId);
content.Name = uploadedContent.Name;
content.Path = uploadedContent.Url;
return(content);
}
private static HttpWebRequest CreateChunkUploadWebRequest(string url, ServerContext server, UploadData uploadData, string boundary, out Stream requestStream)
{
var myRequest = GetRequest(url, server);
myRequest.Method = "POST";
myRequest.ContentType = "multipart/form-data; boundary=" + boundary;
myRequest.Headers.Add("Content-Disposition", "attachment; filename=\"" + Uri.EscapeUriString(uploadData.FileName) + "\"");
var boundarybytes = Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
// we must not close the stream after this as we need to write the chunk into it in the caller method
requestStream = myRequest.GetRequestStream();
//write form data values
foreach (var kvp in uploadData.ToDictionary())
{
requestStream.Write(boundarybytes, 0, boundarybytes.Length);
var formitem = string.Format(UPLOAD_FORMDATA_TEMPLATE, kvp.Key, kvp.Value);
var formitembytes = Encoding.UTF8.GetBytes(formitem);
requestStream.Write(formitembytes, 0, formitembytes.Length);
}
//write a boundary
requestStream.Write(boundarybytes, 0, boundarybytes.Length);
//write file name and content type
var header = string.Format(UPLOAD_HEADER_TEMPLATE, "files[]", Uri.EscapeUriString(uploadData.FileName));
var headerbytes = Encoding.UTF8.GetBytes(header);
requestStream.Write(headerbytes, 0, headerbytes.Length);
return(myRequest);
}