/// <summary>
/// Gets the URL for the specified service by using WS-Inspection.
/// </summary>
/// <param name="host">Address and optionally port of the host server.</param>
/// <param name="serviceName">Service name to find URL for.</param>
/// <param name="user">The user to be authenticated.</param>
/// <param name="password">The password of the user.</param>
/// <returns>A URL that references the specified service.</returns>
static public Uri GetServiceUrl(string host, string serviceName, string user, string password)
{
Uri serviceUrl = null;
HttpWebResponse response = null;
CookieContainer cks = new CookieContainer();
// Build a credential from the user name and password.
NetworkCredential myCred = new NetworkCredential(user, password);
// Parse the host string to see if it is a complete uri.
Uri tempUri;
try
{
if (host.StartsWith(Uri.UriSchemeHttp) || host.StartsWith(Uri.UriSchemeHttps))
{
tempUri = new Uri(host.TrimEnd(new char[] { '/' }) + WSInspectionDocument);
}
else
{
tempUri = new Uri(Uri.UriSchemeHttp + Uri.SchemeDelimiter + host.TrimEnd(new char[] { '/' }) + WSInspectionDocument);
}
}
catch
{
tempUri = new Uri(Uri.UriSchemeHttp + Uri.SchemeDelimiter + host.TrimEnd(new char[] { '/' }) + WSInspectionDocument);
}
// Create the web request.
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(tempUri);
bool retry = true;
proxyRetry:
request.Credentials = myCred;
request.Timeout = 15 * 1000;
request.CookieContainer = cks;
request.Proxy = ProxyState.GetProxyState(request.RequestUri);
try
{
// Get the response from the web server.
response = request.GetResponse() as HttpWebResponse;
// Mono has a bug where it doesn't set the cookies in the cookie jar.
if (response != null)
{
cks.Add(response.Cookies);
}
//cks.Add(response.Cookies);
}
catch (WebException we)
{
IsTrustFailure(host, we);
if ((we.Status == WebExceptionStatus.Timeout) ||
(we.Status == WebExceptionStatus.NameResolutionFailure))
{
throw we;
}
else
{
response = we.Response as HttpWebResponse;
if (response != null)
{
// Mono has a bug where it doesn't set the cookies in the cookie jar.
cks.Add(response.Cookies);
if (response.StatusCode == HttpStatusCode.Unauthorized && retry == true)
{
// This should be a free call we must be behind iChain.
request = (HttpWebRequest)WebRequest.Create(response.ResponseUri);
retry = false;
goto proxyRetry;
}
}
response = null;
}
}
// Make sure that there was an answer.
if (response != null)
{
try
{
// Get the stream associated with the response.
Stream receiveStream = response.GetResponseStream();
// Pipes the stream to a higher level stream reader with the required encoding format.
StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);
try
{
XmlDocument document = new XmlDocument();
document.Load(readStream);
//Create an XmlNamespaceManager for resolving namespaces.
XmlNamespaceManager nsmgr = new XmlNamespaceManager(document.NameTable);
nsmgr.AddNamespace("wsil", document.DocumentElement.NamespaceURI);
// Search for the named service element.
XmlNode serviceNode = document.DocumentElement.SelectSingleNode(WSIL_ServiceTag + "[" + WSIL_NameTag + "='" + "Domain Service" + "']", nsmgr);
if (serviceNode != null)
{
// Get the description node.
XmlElement description = serviceNode[WSIL_DescriptionTag];
if (description != null)
{
// Get the uri location.
string uriString = description.GetAttribute(WSIL_LocationAttrTag);
if (uriString != null)
{
// Fix up the URI if it is relative.
if (!uriString.ToLower().StartsWith(Uri.UriSchemeHttp))
{
Uri respUri = response.ResponseUri;
UriBuilder urb = new UriBuilder(respUri.Scheme, respUri.Host, respUri.Port, uriString.TrimStart(new char[] { '/' }));
serviceUrl = urb.Uri;
// Check to see if we need to use ssl.
// Make the request and see if we get redirected 302;
// Create the web request.
request = (HttpWebRequest)WebRequest.Create(serviceUrl);
request.CookieContainer = cks;
request.Proxy = ProxyState.GetProxyState(request.RequestUri);
response.Close();
try
{
response = request.GetResponse() as HttpWebResponse;
serviceUrl = response.ResponseUri;
}
catch (WebException wex)
{
IsTrustFailure(host, wex);
response = wex.Response as HttpWebResponse;
if (response != null)
{
if (response.StatusCode == HttpStatusCode.Unauthorized)
{
if (response.Headers.Get("Simias-Error") != null)
{
// This is expected because this service requires authentication.
serviceUrl = response.ResponseUri;
}
}
}
}
}
else
{
serviceUrl = new Uri(uriString);
}
}
}
}
}
finally
{
readStream.Close();
}
}
finally
{
if (response != null)
{
response.Close();
}
}
}
return(serviceUrl);
}