Carrotware.CMS.Mvc.UI.Admin.Service.CMS.ValidateBlogFolders C# (CSharp) Method

        public string ValidateBlogFolders(string FolderPath, string DatePath, string CategoryPath, string TagPath, string EditorPath)
        {
            try {
                string sFolderPath = ContentPageHelper.ScrubSlug(CMSConfigHelper.DecodeBase64(FolderPath));
                string sCategoryPath = ContentPageHelper.ScrubSlug(CMSConfigHelper.DecodeBase64(CategoryPath));
                string sTagPath = ContentPageHelper.ScrubSlug(CMSConfigHelper.DecodeBase64(TagPath));
                string sDatePath = ContentPageHelper.ScrubSlug(CMSConfigHelper.DecodeBase64(DatePath));
                string sEditorPath = ContentPageHelper.ScrubSlug(CMSConfigHelper.DecodeBase64(EditorPath));

                if (String.IsNullOrEmpty(sFolderPath) || String.IsNullOrEmpty(sCategoryPath)
                    || String.IsNullOrEmpty(sTagPath) || String.IsNullOrEmpty(sDatePath)
                    || String.IsNullOrEmpty(sEditorPath)) {
                    return "FAIL";
                }
                if (sFolderPath.Length < 1 || sCategoryPath.Length < 1 || sTagPath.Length < 1 || sDatePath.Length < 1 || sEditorPath.Length < 1) {
                    return "FAIL";
                }

                List<string> lstParms = new List<string>();
                lstParms.Add(sCategoryPath);
                lstParms.Add(sTagPath);
                lstParms.Add(sDatePath);
                lstParms.Add(sEditorPath);

                Dictionary<string, int> ct = (from p in lstParms
                                              group p by p into g
                                              select new KeyValuePair<string, int>(g.Key, g.Count())).ToDictionary(kvp => kvp.Key, kvp => kvp.Value);

                bool bDuplicate = ct.Where(x => x.Value > 1).Any();

                if (SiteData.CurretSiteExists && !bDuplicate) {
                    var exists = pageHelper.ExistingPagesBeginWith(SiteData.CurrentSite.SiteID, sFolderPath);

                    if (!exists) {
                        return "OK";
                    }
                }

                if (!SiteData.CurretSiteExists) {
                    return "OK";
                }

                return "FAIL";
            } catch (Exception ex) {
                SiteData.WriteDebugException("webservice", ex);

                return ex.ToString();
            }
        }