Hello,

I have developed a work around solution to validate the URL before passing it to the navigate method of the webrowser:

Here is a sample function.

I used the Powerbuilder http client to validate the header of the website.

Powerbuilder was working fine but there appeared to be something on the client site, altering the PB's reaction

So in those type of cases, we can use this function to do a URL validation before initiating the navigate method.

gf_validateUrl(string as_url) returning lb_ok 

 

boolean lb_valid
integer li_response = -1
integer li_rc
string ls_content_length
string ls_url
integer li_pos

li_pos = pos(as_url, upper("c:"), 1 )

if li_pos > 0 then

   if FileExists(as_url) then
      lb_valid = true
   else
      lb_valid = false
   end if

else

   // S'assurer que le URL commence par http ou https
   if Lower(Left(as_url, 4)) <> 'http' then as_url = 'https://' + trim(as_url)

   HttpClient lo_httpclient
   lo_httpclient = Create HttpClient

   // si le serveur ne supporte pas HEAD, vous pouvez utiliser GET
   li_rc = lo_httpclient.SendRequest('HEAD', as_url)

   if li_rc = 1 then

      li_response = lo_httpclient.GetResponseStatusCode()

      choose case li_response
         case 200
            // page trouvée
            lb_valid = true
         case 404
            // page non trouvée
             lb_valid = false
         case 401
            // la page est trouvée mais l'utilisateur 
            // n'est pas authorisé pour y acceder
            lb_valid = true
         case else
            // autres erreurs
            lb_valid = false
      end choose

   else
 
      // le send request HEAD a pas reussi a cause d'un erreur de serveur
      // au besoins on pourrait logger la variable li_rc avec le URL en question as_url
      lb_valid = false

   end if

   destroy lo_httpclient

end if

return lb_valid