public static ContextStatus CheckContextStatus(HttpControllerContext controllerContext, out Uri redirectUrl)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
redirectUrl = null;
if (SharePointApiControllerContextProvider.Current.GetSharePointContext(controllerContext) != null)
{
return(ContextStatus.Ok);
}
const string SPHasRedirectedToSharePointKey = "SPHasRedirectedToSharePoint";
if (!string.IsNullOrEmpty(controllerContext.Request.GetQueryString(SPHasRedirectedToSharePointKey)))
{
return(ContextStatus.NotOk);
}
Uri spHostUrl = SharePointApiControllerContext.GetSPHostUrl(controllerContext.Request);
if (spHostUrl == null)
{
return(ContextStatus.NotOk);
}
if (StringComparer.OrdinalIgnoreCase.Equals(controllerContext.Request.Method, "POST"))
{
return(ContextStatus.NotOk);
}
return(ContextStatus.NotOk);
}
public SharePointApiControllerContext CreateSharePointContext(HttpControllerContext httpControllerContext)
{
if (httpControllerContext == null)
{
throw new ArgumentNullException("httpControllerContext");
}
// SPHostUrl
Uri spHostUrl = SharePointApiControllerContext.GetSPHostUrl(httpControllerContext.Request);
if (spHostUrl == null)
{
return(null);
}
// SPAppWebUrl
string spAppWebUrlString = TokenHelper.EnsureTrailingSlash(httpControllerContext.Request.GetQueryString(SharePointApiControllerContext.SPAppWebUrlKey));
Uri spAppWebUrl;
if (!Uri.TryCreate(spAppWebUrlString, UriKind.Absolute, out spAppWebUrl) ||
!(spAppWebUrl.Scheme == Uri.UriSchemeHttp || spAppWebUrl.Scheme == Uri.UriSchemeHttps))
{
spAppWebUrl = null;
}
// SPLanguage
string spLanguage = httpControllerContext.Request.GetQueryString(SharePointApiControllerContext.SPLanguageKey);
if (string.IsNullOrEmpty(spLanguage))
{
return(null);
}
// SPClientTag
string spClientTag = httpControllerContext.Request.GetQueryString(SharePointApiControllerContext.SPClientTagKey);
if (string.IsNullOrEmpty(spClientTag))
{
return(null);
}
// SPProductNumber
string spProductNumber = httpControllerContext.Request.GetQueryString(SharePointApiControllerContext.SPProductNumberKey);
if (string.IsNullOrEmpty(spProductNumber))
{
return(null);
}
return(CreateSharePointContext(spHostUrl, spAppWebUrl, spLanguage, spClientTag, spProductNumber, httpControllerContext));
}
public SharePointApiControllerContext GetSharePointContext(HttpControllerContext httpControllerContextContext)
{
if (httpControllerContextContext == null)
{
throw new ArgumentNullException("httpControllerContextContext");
}
Uri spHostUrl = SharePointApiControllerContext.GetSPHostUrl(httpControllerContextContext.Request);
if (spHostUrl == null)
{
return(null);
}
SharePointApiControllerContext spContext = CreateSharePointContext(httpControllerContextContext);
return(spContext);
}