protected void Page_Load(object sender, EventArgs e)
{
try
{
var contextToken = TokenHelper.GetContextTokenFromRequest(Page.Request);
var hostWeb = Page.Request["SPHostUrl"];
var appWeb = Page.Request["SPAppWebUrl"];
using (var clientContext = TokenHelper.GetClientContextWithContextToken(hostWeb, contextToken, Request.Url.Authority))
{
// Retrieve any app licenses stored within SharePoint, most RELEVANT first.
ClientResult <AppLicenseCollection> licenses =
Microsoft.SharePoint.Client.Utilities.Utility.GetAppLicenseInformation(clientContext, _productID);
clientContext.ExecuteQuery();
if (licenses.Value.Count == 0)
{
throw new InvalidOperationException("No license");
}
string licenseString = licenses.Value[0].RawXMLLicenseToken;
// Validate the license against the Office Store license service.
VerificationServiceClient service = new VerificationServiceClient();
VerifyEntitlementTokenRequest request = new VerifyEntitlementTokenRequest();
request.EntitlementToken = licenseString;
VerifyEntitlementTokenResponse storeLicense = service.VerifyEntitlementToken(request);
// Perform licensing checks.
//
// Use this version of the check in production:
// if (!storeLicense.IsValid || storeLicense.IsExpired)
//
// Use this version of the check in test/debugging:
if ((!storeLicense.IsValid && !storeLicense.IsTest) || storeLicense.IsExpired)
{
throw new InvalidOperationException("Invalid license");
}
// At this point, we have a valid license. We can retrieve the details
// of the license (type of license, acquisition date, etc.) from the
// license provided by the Office Store and take appropriate actions.
// <--TBD-->
Response.Write("Licensing Succeeded: " + storeLicense.EntitlementType.ToString());
}
}
catch (Exception ex)
{
Response.Write("Licensing failed: " + ex.Message);
}
}
private static VerifyEntitlementTokenResponse GetValidatedLicenseFromStore(
string rawLicenseToken)
{
VerificationServiceClient service = null;
VerifyEntitlementTokenResponse result = null;
VerifyEntitlementTokenRequest request = new VerifyEntitlementTokenRequest();
request.EntitlementToken = rawLicenseToken;
service = new VerificationServiceClient();
result = service.VerifyEntitlementToken(request);
return result;
}
/// <summary>
/// Takes a token from SP and verifies it with the Store using the verification web service.
/// </summary>
/// <param name="rawLicenseToken">XML string containing a well-formed license token</param>
private static VerifyEntitlementTokenResponse GetValidatedLicenseFromStore(string rawLicenseToken)
{
VerificationServiceClient service = null;
VerifyEntitlementTokenResponse result = null;
VerifyEntitlementTokenRequest request = new VerifyEntitlementTokenRequest();
request.EntitlementToken = rawLicenseToken;
service = new VerificationServiceClient();
result = service.VerifyEntitlementToken(request);
return(result);
}