cybermut_testmac

(4.0.5 - 4.2.3 only)

cybermut_testmac --  Make sure that there no was data diddling contained in the received message of confirmation

Description

bool cybermut_testmac ( string code_MAC, string version, string TPE, string cdate, string montant, string ref_commande, string texte_libre, string code-retour)

cybermut_testmac() is used to make sure that there was not data diddling contained in the received message of confirmation. Pay attention to parameters code-retour and texte-libre, which cannot be evaluated as is, because of the dash. You must retrieve them by using:
<?php
  $code_retour = $_GET["code-retour"];
  $texte_libre = $_GET["texte-libre"];
?>

Example 1. Last step of payment (equiv cgi2.c)

<?php
// Make sure that Enable Track Vars is ON.
// Directory where are located the keys
putenv("CMKEYDIR=/var/creditmut/cles");
 
// Version number
$VERSION="1.2";

$texte_libre = $_GET["texte-libre"];
$code_retour = $_GET["code-retour"];                                     

$mac_ok = cybermut_testmac($MAC,$VERSION,$TPE,$date,$montant,$reference,$texte_libre,$code_retour);

if ($mac_ok) {

  //
  // insert data processing here
  //
  //

  $result=cybermut_creerreponsecm("OK");
} else {
  $result=cybermut_creerreponsecm("Document Falsifie");
}
 
?>

See also cybermut_creerformulairecm() and cybermut_creerreponsecm().