| public static FormatOperationUrlString ( string hostUrl, string operationPageUrl ) : string | ||
| hostUrl | string | |
| operationPageUrl | string | |
| return | string | |
/// <summary>
/// Responsible of accessing the page and submitting the post. Generic handler for the post access
/// </summary>
/// <param name="parameters"></param>
/// <param name="url"></param>
/// <returns></returns>
protected string MakePostRequest(string webPage)
{
// Add required stuff to validate the page request
string postBody = "__REQUESTDIGEST=" + Utilities.ReadHiddenField(webPage, "__REQUESTDIGEST") +
"&__EVENTVALIDATION=" + Utilities.ReadHiddenField(webPage, "__EVENTVALIDATION") +
"&__VIEWSTATE=" + Utilities.ReadHiddenField(webPage, "__VIEWSTATE");
// Add operation specific parameters
foreach (var item in this.PostParameters)
{
postBody = postBody + string.Format("&{0}={1}", item.Key, item.Value);
}
string results = string.Empty;
try
{
string url = Utilities.FormatOperationUrlString(this.TargetSiteUrl, this.OperationPageUrl);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
if (this.AuthType != AuthenticationType.Office365)
{
// Get X-RequestDigest header for post. Required for most of the operations
request.Headers.Add("X-RequestDigest", GetUpdatedFormDigest(this.TargetSiteUrl));
}
// Note that this assumes that we use particular identity running the thread
ModifyRequestBasedOnAuthPattern(request);
// Set some reasonable limits on resources used by this request
request.MaximumAutomaticRedirections = 6;
request.MaximumResponseHeadersLength = 6;
// Set credentials to use for this request.
request.ContentType = "application/x-www-form-urlencoded";
byte[] postByte = Encoding.UTF8.GetBytes(postBody);
request.ContentLength = postByte.Length;
Stream postStream = request.GetRequestStream();
postStream.Write(postByte, 0, postByte.Length);
postStream.Close();
HttpWebResponse wResp = (HttpWebResponse)request.GetResponse();
postStream = wResp.GetResponseStream();
StreamReader postReader = new StreamReader(postStream);
results = postReader.ReadToEnd();
postReader.Close();
}
catch (Exception ex)
{
// Give better description for the exception
throw new Exception("MakePostRequest failed.", ex);
}
return(results);
}
/// <summary>
/// Handles the initial request of the page using given identity
/// </summary>
/// <returns></returns>
protected string GetRequest()
{
string returnString = string.Empty;
string url = Utilities.FormatOperationUrlString(this.TargetSiteUrl, this.OperationPageUrl);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
//Set auth options based on auth model
ModifyRequestBasedOnAuthPattern(request);
// Set some reasonable limits on resources used by this request
request.MaximumAutomaticRedirections = 6;
request.MaximumResponseHeadersLength = 6;
// Set user agent as valid text
request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)";
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
Stream responseStream = response.GetResponseStream();
if (response.ContentEncoding.ToLower().Contains("gzip"))
{
responseStream = new GZipStream(responseStream, CompressionMode.Decompress);
}
else if (response.ContentEncoding.ToLower().Contains("deflate"))
{
responseStream = new DeflateStream(responseStream, CompressionMode.Decompress);
}
// Get the response stream and store that as string
using (StreamReader reader = new StreamReader(responseStream, encode))
{
returnString = reader.ReadToEnd();
}
return(returnString);
}
}