protected override SharePointContext CreateSharePointContext(Uri spHostUrl, Uri spAppWebUrl, string spLanguage, string spClientTag, string spProductNumber, HttpRequest httpRequest)
{
string contextTokenString = TokenHandler.GetContextTokenFromRequest(httpRequest);
if (string.IsNullOrEmpty(contextTokenString))
{
return(null);
}
SharePointContextToken contextToken = null;
try
{
contextToken = TokenHandler.ReadAndValidateContextToken(contextTokenString, httpRequest.Host.Value);
}
//catch (WebException)
//{
// return null;
//}
catch (AudienceUriValidationFailedException)
{
return(null);
}
return(new SharePointAcsContext(spHostUrl, spAppWebUrl, spLanguage, spClientTag, spProductNumber, contextTokenString, contextToken, Configuration));
}
protected override SharePointContext LoadSharePointContext(HttpContext httpContext)
{
byte[] value;
httpContext.Session.TryGetValue(SPContextKey, out value);
if (value == null)
{
return(null);
}
char[] chars = new char[value.Length / sizeof(char)];
System.Buffer.BlockCopy(value, 0, chars, 0, value.Length);
string acsSessionContext = new string(chars);
var dto = JsonConvert.DeserializeObject <SharePointSessionData>(acsSessionContext);
var contextTokenObj = TokenHandler.ReadAndValidateContextToken(dto.ContextToken, httpContext.Request.Host.Value);
return(new SharePointAcsContext(dto.SpHostUrl, dto.SpAppWebUrl, dto.SpLanguage, dto.SpClientTag, dto.SpProductNumber, dto.ContextToken, contextTokenObj, Configuration));
}