public static string Upload( string url, UploadFile[] files, NameValueCollection form )
{
HttpWebResponse resp = Upload( (HttpWebRequest)WebRequest.Create( url ), files, form );
using( Stream s = resp.GetResponseStream() )
using( StreamReader sr = new StreamReader( s ) ) {
return sr.ReadToEnd();
}
}
public static HttpWebResponse Upload( HttpWebRequest req, UploadFile[] files, NameValueCollection form )
{
List<MimePart> mimeParts = new List<MimePart>();
try {
foreach( string key in form.AllKeys ) {
StringMimePart part = new StringMimePart();
part.Headers[ "Content-Disposition" ] = "form-data; name=\"" + key + "\"";
part.StringData = form[ key ];
mimeParts.Add( part );
}
int nameIndex = 0;
foreach( UploadFile file in files ) {
StreamMimePart part = new StreamMimePart();
if( string.IsNullOrEmpty( file.FieldName ) )
file.FieldName = "file" + nameIndex++;
part.Headers[ "Content-Disposition" ] = "form-data; name=\"" + file.FieldName + "\"; filename=\"" + file.FileName + "\"";
part.Headers[ "Content-Type" ] = file.ContentType;
part.SetStream( file.Data );
mimeParts.Add( part );
}
string boundary = "----------" + DateTime.Now.Ticks.ToString( "x" );
req.ContentType = "multipart/form-data; boundary=" + boundary;
req.Method = "POST";
long contentLength = 0;
byte[] _footer = Encoding.UTF8.GetBytes( "--" + boundary + "--\r\n" );
foreach( MimePart part in mimeParts ) {
contentLength += part.GenerateHeaderFooterData( boundary );
}
req.ContentLength = contentLength + _footer.Length;
byte[] buffer = new byte[ 8192 ];
byte[] afterFile = Encoding.UTF8.GetBytes( "\r\n" );
using( Stream s = req.GetRequestStream() ) {
foreach( MimePart part in mimeParts ) {
s.Write( part.Header, 0, part.Header.Length );
int read;
while( (read = part.Data.Read( buffer, 0, buffer.Length )) > 0 )
s.Write( buffer, 0, read );
part.Data.Dispose();
s.Write( afterFile, 0, afterFile.Length );
}
s.Write( _footer, 0, _footer.Length );
}
return (HttpWebResponse)req.GetResponse();
} catch {
foreach( MimePart part in mimeParts )
if( part.Data != null )
part.Data.Dispose();
throw;
}
}