ASPC.Marvel.CrimeAPI.SharePointContextProvider.CreateSharePointContext C# (CSharp) Метод

        public SharePointContext CreateSharePointContext(HttpRequestBase httpRequest)
        {
            if (httpRequest == null)
            {
                throw new ArgumentNullException("httpRequest");
            }

            // SPHostUrl
            Uri spHostUrl = SharePointContext.GetSPHostUrl(httpRequest);
            if (spHostUrl == null)
            {
                return null;
            }

            // SPAppWebUrl
            string spAppWebUrlString = TokenHelper.EnsureTrailingSlash(httpRequest.QueryString[SharePointContext.SPAppWebUrlKey]);
            Uri spAppWebUrl;
            if (!Uri.TryCreate(spAppWebUrlString, UriKind.Absolute, out spAppWebUrl) ||
                !(spAppWebUrl.Scheme == Uri.UriSchemeHttp || spAppWebUrl.Scheme == Uri.UriSchemeHttps))
            {
                spAppWebUrl = null;
            }

            // SPLanguage
            string spLanguage = httpRequest.QueryString[SharePointContext.SPLanguageKey];
            if (string.IsNullOrEmpty(spLanguage))
            {
                return null;
            }

            // SPClientTag
            string spClientTag = httpRequest.QueryString[SharePointContext.SPClientTagKey];
            if (string.IsNullOrEmpty(spClientTag))
            {
                return null;
            }

            // SPProductNumber
            string spProductNumber = httpRequest.QueryString[SharePointContext.SPProductNumberKey];
            if (string.IsNullOrEmpty(spProductNumber))
            {
                return null;
            }

            return CreateSharePointContext(spHostUrl, spAppWebUrl, spLanguage, spClientTag, spProductNumber, httpRequest);
        }