protected virtual void ApplyFormData(HttpRequest request)
{
if (FormData.Empty())
{
return;
}
if (request.ContentData != null)
{
throw new ApplicationException("Cannot send HttpRequest Body and FormData simultaneously.");
}
var shouldSendAsMultipart = FormData.Any(v => v.ContentType != null || v.FileName != null || v.ContentData.Length > 1024);
if (shouldSendAsMultipart)
{
var boundary = "-----------------------------" + DateTime.Now.Ticks.ToString("x14");
var partBoundary = string.Format("--{0}\r\n", boundary);
var endBoundary = string.Format("--{0}--\r\n", boundary);
var bodyStream = new MemoryStream();
var summary = new StringBuilder();
using (var writer = new StreamWriter(bodyStream, new UTF8Encoding(false)))
{
foreach (var formData in FormData)
{
writer.Write(partBoundary);
writer.Write("Content-Disposition: form-data");
if (formData.Name.IsNotNullOrWhiteSpace())
{
writer.Write("; name=\"{0}\"", formData.Name);
}
if (formData.FileName.IsNotNullOrWhiteSpace())
{
writer.Write("; filename=\"{0}\"", formData.FileName);
}
writer.Write("\r\n");
if (formData.ContentType.IsNotNullOrWhiteSpace())
{
writer.Write("Content-Type: {0}\r\n", formData.ContentType);
}
writer.Write("\r\n");
writer.Flush();
bodyStream.Write(formData.ContentData, 0, formData.ContentData.Length);
writer.Write("\r\n");
if (formData.FileName.IsNotNullOrWhiteSpace())
{
summary.AppendFormat("\r\n{0}={1} ({2} bytes)", formData.Name, formData.FileName, formData.ContentData.Length);
}
else
{
summary.AppendFormat("\r\n{0}={1}", formData.Name, Encoding.UTF8.GetString(formData.ContentData));
}
}
writer.Write(endBoundary);
}
var body = bodyStream.ToArray();
// TODO: Scan through body to see if we have a boundary collision?
request.Headers.ContentType = "multipart/form-data; boundary=" + boundary;
request.SetContent(body);
if (request.ContentSummary == null)
{
request.ContentSummary = summary.ToString();
}
}
else
{
var parameters = FormData.Select(v => string.Format("{0}={1}", v.Name, Uri.EscapeDataString(Encoding.UTF8.GetString(v.ContentData))));
var urlencoded = string.Join("&", parameters);
var body = Encoding.UTF8.GetBytes(urlencoded);
request.Headers.ContentType = "application/x-www-form-urlencoded";
request.SetContent(body);
if (request.ContentSummary == null)
{
request.ContentSummary = urlencoded;
}
}
}
