/// <summary>
/// Uploads media (only photos).
/// </summary>
/// <remarks>
/// <see href="https://dev.twitter.com/rest/reference/post/media/upload-init"/>
/// </remarks>
/// <param name="path">File path.</param>
public static async Task <RequestResult> UploadMedia(string path, MeadiaUploadEventHandler uploadingCallback)
{
var file = new FileInfo(path);
string media_type = "image/jpeg";
switch (file.Extension.ToLower())
{
case ".png":
media_type = "image/png";
break;
case ".gif":
media_type = "image/gif";
break;
case ".bmp":
media_type = "image/bmp";
break;
}
var parameters = new HttpParameterCollection();
parameters.AddFormParameter("command", "INIT");
parameters.AddFormParameter("total_bytes", file.Length.ToString());
parameters.AddFormParameter("media_type", media_type);
parameters.AddFormParameter("media_category", "tweet_image");
var t = Task.Run <RequestResult>(() =>
{
return(OAuthUtility.Post
(
"https://upload.twitter.com/1.1/media/upload.json",
parameters: parameters,
authorization: TwitterApi.GetAuth(),
contentType: "multipart/form-data"
));
});
var result = await t;
if (result.IsSuccessfully)
{
return(await TwitterApi.MeadiaUploadAppend(path, result["media_id"].ToString(), 0, uploadingCallback));
}
else
{
return(result);
}
}
/// <summary>
/// https://dev.twitter.com/rest/reference/post/media/upload-append
/// </summary>
/// <param name="path">File path.</param>
/// <param name="media_id">Media id.</param>
/// <param name="chunk">Chunk. Default: 0.</param>
/// <param name="uploadingCallback">Uploading callback.</param>
private static async Task <RequestResult> MeadiaUploadAppend(string path, string media_id, int chunk, MeadiaUploadEventHandler uploadingCallback)
{
var file = new FileInfo(path);
bool isUploded = false;
byte[] media = null;
if (chunk > 0)
{
// multiple chunks
using (var stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.Inheritable))
using (var reader = new BinaryReader(stream))
{
stream.Position = (TwitterApi.MediaUploadChunkSize * chunk);
media = reader.ReadBytes(TwitterApi.MediaUploadChunkSize);
isUploded = (stream.Position == stream.Length);
}
}
else
{
if (file.Length <= TwitterApi.MediaUploadChunkSize)
{
// one chunk
using (var reader = new BinaryReader(file.Open(FileMode.Open, FileAccess.Read, FileShare.Inheritable)))
{
media = reader.ReadBytes(Convert.ToInt32(file.Length));
isUploded = true;
}
}
else
{
// multiple chunks
using (var stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.Inheritable))
using (var reader = new BinaryReader(stream))
{
media = reader.ReadBytes(TwitterApi.MediaUploadChunkSize);
isUploded = (stream.Position == stream.Length);
}
}
}
var parameters = new HttpParameterCollection();
parameters.AddFormParameter("command", "APPEND");
parameters.AddFormParameter("media_id", media_id);
parameters.AddFormParameter("segment_index", chunk.ToString());
parameters.Add("media", Path.GetFileName(path), media);
var t = Task.Run <RequestResult>(() =>
{
return(OAuthUtility.Post
(
"https://upload.twitter.com/1.1/media/upload.json",
parameters: parameters,
authorization: TwitterApi.GetAuth(),
contentType: "multipart/form-data",
streamWriteCallback: (object s, StreamWriteEventArgs e) =>
{
int progressPercentage = 0;
long totalUploaded = 0;
if (chunk > 0)
{
totalUploaded = TwitterApi.MediaUploadChunkSize * chunk;
}
totalUploaded += e.TotalBytesWritten;
progressPercentage = Convert.ToInt32((totalUploaded * 100) / file.Length);
uploadingCallback?.Invoke(s, new ProgressChangedEventArgs(progressPercentage, null));
}
));
});
var result = await t;
if (!result.IsSuccessfully)
{
// error
return(result);
}
if (file.Length > TwitterApi.MediaUploadChunkSize && !isUploded)
{
// next chunk
return(await TwitterApi.MeadiaUploadAppend(path, media_id, chunk + 1, uploadingCallback));
}
else
{
// finalize
return(await TwitterApi.MeadiaUploadFinalize(path, media_id));
}
}
