ciao a tutti, ho appena scaricato il file CAPTCHAR.
Ma una cosa che vorrei è che controlla se sono uguali al codice dell'immagine, ma con controllo di js "controlla();" appena trova uguali e passa all'altra pagina.
Non è che deve esser per forza js, oppure un'altro modo per fare il controllo....
ecco il codice:
Graziecodice:<%@LANGUAGE="VBSCRIPT" CODEPAGE="1254"%> <% Response.CacheControl = "no-cache" Response.AddHeader "Pragma", "no-cache" Response.Expires = -1 %> <% Function CheckCAPTCHA(valCAPTCHA) SessionCAPTCHA = Trim(Session("CAPTCHA")) Session("CAPTCHA") = vbNullString if Len(SessionCAPTCHA) < 1 then CheckCAPTCHA = False exit function end if if CStr(SessionCAPTCHA) = CStr(valCAPTCHA) then CheckCAPTCHA = True else CheckCAPTCHA = False end if End Function %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-9" /> <META HTTP-EQUIV="Pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Expires" CONTENT="-1"> <script type="text/javascript"> function Conferma() { var verifica = false; if (form1.strCAPTCHA.value == "+ SessionCAPTCHA +") { alert("Digitare la MATRICOLA"); f_example.strCAPTCHA.focus(); verifica = true; if (confirm("Sei sicuro di procedere ?")) { document.f_example.submit(); end if } end if } </script> <title>ASP Security Image Generator (CAPTCHA) v2.0</title> </head> <body> <form id="f_example" name="f_example" method="post" action="localstart.asp"> <table width="350" height="187" border="1" align="center"> <tr> <td colspan="2" align="center"><h2>Distort=True, DistortEx=True, Noise=True</h2></td> </tr> <tr> <td width="152" height="32">CAPTCHA Image</td> <td width="182">[img]aspcaptcha.asp[/img]</td> </tr> <% if Request.ServerVariables("REQUEST_METHOD") = "POST" then strCAPTCHA = Trim(Request.Form("strCAPTCHA")) if CheckCAPTCHA(strCAPTCHA) = true then %> <tr> <td height="37" colspan="2" align="center"><b style="color:#00CC00">Verified (<%=strCAPTCHA%>)[/b]</td> </tr> <% else %> <tr> <td height="37" colspan="2" align="center"><b style="color:#FF0000">Not Verified. Please Retry.[/b]</td> </tr> <% end if end if %> <tr> <td height="66">Write the characters in the image above</td> <td><input name="strCAPTCHA" type="text" id="strCAPTCHA" maxlength="8" /></td> </tr> <tr> <td height="37" colspan="2" align="center"><input type="submit" name="Submit" value="Test Input" onclick="javascript:Conferma();"/></td> </tr> <tr> <td height="37" colspan="2" align="center">Download v2.0 Example</td> </tr> </table> </form> </body> </html>
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