public static HttpWebResponse Upload(HttpWebRequest req, UploadFile[] files, NameValueCollection form) { var mimeParts = new List<MimePart>(); try { foreach (var key in form.AllKeys) { var part = new StringMimePart(); part.Headers["Content-Disposition"] = "form-data; name=\"" + key + "\""; part.StringData = form[key]; mimeParts.Add(part); } var nameIndex = 0; foreach (var file in files) { var 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); } var boundary = "----------" + DateTime.Now.Ticks.ToString("x"); req.ContentType = "multipart/form-data; boundary=" + boundary; req.Method = "POST"; long contentLength = 0; var footer = Encoding.UTF8.GetBytes("--" + boundary + "--\r\n"); foreach (var part in mimeParts) { contentLength += part.GenerateHeaderFooterData(boundary); } req.ContentLength = contentLength + footer.Length; var buffer = new byte[512*1024]; var afterFile = Encoding.UTF8.GetBytes("\r\n"); using (var s = req.GetRequestStream()) { foreach (var 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 (var part in mimeParts) if (part.Data != null) part.Data.Dispose(); throw; } }
public static HttpWebResponse Upload(HttpWebRequest req, UploadFile[] files, NameValueCollection form) { var mimeParts = new List <MimePart>(); try { foreach (var key in form.AllKeys) { var part = new StringMimePart(); part.Headers["Content-Disposition"] = "form-data; name=\"" + key + "\""; part.StringData = form[key]; mimeParts.Add(part); } var nameIndex = 0; foreach (var file in files) { var 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); } var boundary = "----------" + DateTime.Now.Ticks.ToString("x"); req.ContentType = "multipart/form-data; boundary=" + boundary; req.Method = "POST"; long contentLength = 0; var footer = Encoding.UTF8.GetBytes("--" + boundary + "--\r\n"); foreach (var part in mimeParts) { contentLength += part.GenerateHeaderFooterData(boundary); } req.ContentLength = contentLength + footer.Length; var buffer = new byte[512 * 1024]; var afterFile = Encoding.UTF8.GetBytes("\r\n"); using (var s = req.GetRequestStream()) { foreach (var 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 (var part in mimeParts) { if (part.Data != null) { part.Data.Dispose(); } } throw; } }