private static string GetXRequestDigestForPostRequest(SearchRequest searchRequest)
{
string digestValue = "";
var request = CreateWebRequest(searchRequest.GenerateHttpPostUri(),
searchRequest.AcceptType,
searchRequest.Timeout.HasValue ? searchRequest.Timeout.Value : SearchRequest.DefaultTimeout,
searchRequest.AuthenticationType,
searchRequest.SharePointSiteUrl,
searchRequest.UserName,
searchRequest.Password,
searchRequest.SecurePassword,
searchRequest.Cookies,
searchRequest.Token);
request.Method = "POST";
request.ContentType = "application/json;odata=verbose;charset=utf-8";
request.ContentLength = 0;
try
{
using (var response = (request as HttpWebRequest).GetResponse() as HttpWebResponse)
{
foreach (var header in response.Headers.AllKeys)
{
if (header.ToLower() == "x-requestdigest")
{
digestValue = response.Headers[header];
break;
}
}
}
}
catch (WebException webex) // expected 403 Forbidden
{
using (WebResponse response = webex.Response)
{
HttpWebResponse httpResponse = response as HttpWebResponse;
if (httpResponse != null && httpResponse.StatusCode == HttpStatusCode.Forbidden)
{
foreach (var header in response.Headers.AllKeys)
{
if (header.ToLower() == "x-requestdigest")
{
digestValue = response.Headers[header];
break;
}
}
}
}
}
return(digestValue);
}
private static HttpRequestResponsePair RunPostWebRequest(SearchRequest searchRequest)
{
string xrequestDigestValue = GetXRequestDigestForPostRequest(searchRequest);
var request = CreateWebRequest(searchRequest.GenerateHttpPostUri(),
searchRequest.AcceptType,
searchRequest.Timeout.HasValue ? searchRequest.Timeout.Value : SearchRequest.DefaultTimeout,
searchRequest.AuthenticationType,
searchRequest.SharePointSiteUrl,
searchRequest.UserName,
searchRequest.Password,
searchRequest.SecurePassword,
searchRequest.Cookies,
searchRequest.Token);
request.Method = "POST";
request.ContentType = "application/json;odata=verbose;charset=utf-8";
request.Headers["x-requestdigest"] = xrequestDigestValue;
string payload = searchRequest.GenerateHttpPostBodyPayload();
if (!String.IsNullOrEmpty(payload))
{
byte[] bytes = Encoding.UTF8.GetBytes(payload);
request.ContentLength = (long)bytes.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(bytes, 0, bytes.Length);
requestStream.Close();
}
HttpWebResponse response = null;
try
{
response = request.GetResponse() as HttpWebResponse;
}
catch (WebException webEx)
{
response = webEx.Response as HttpWebResponse;
}
return(new HttpRequestResponsePair(request, response, payload));
}