Function AccountCryptpassword($password,$salt)
<?php and?>{
 if($salt==\"\")
 {
  srand(time());
  $random=rand();
  $itoa64=\"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\";
  $salt=substr($itoa64,$random % 64,1).substr($itoa64,($random/64) % 64,1);
 }
 return(crypt($password,$salt));
} class access_accounts
{
 var $password_file=\"\";
 var $accounts=array();
 var $convert_to_lower_case=0;  Function ReadAccounts($password_file)
 {
  global $php_errormsg;   $passwd=@File($password_file);
  if(GetType($passwd)!=\"array\")
   return(\"can not read password file \\\"$password_file\\\" ($php_errormsg)\");
  for($account=0,$accounts=array();$account<count($passwd);$account  )
  {
   if(($line=strtok($passwd[$account],\"\\n\"))==\"\")
    $line=$passwd[$account];
   if(($user=strtok($line,\":\"))==\"\")
    return(\"invalid user in line $account of password file \\\"$password_file\\\"\");
   if($this->convert_to_lower_case)
    $user=strtolower($user);
   $accounts[$account][\"user\"]=\"$user\";
   $accounts[$account][\"password\"]=strtok(\":\");
  }
  $this->accounts=$accounts;
  $this->password_file=$password_file;
  return(\"\");
 }

  Function LookupAccount($user)
 {
  if($this->convert_to_lower_case)
   $user=strtolower($user);
  for($account=0;$account<count($this->accounts);$account  )
  {
   if($this->accounts[$account][\"user\"]==$user)
    break;
  }
  return($account);
 }

 Function Checkpassword($user,$password)
 {
  if($user==\"\")
   return(\"empty user\");
  if($password==\"\")
   return(\"empty password\");
  if($this->convert_to_lower_case)
  {
   $user=strtolower($user);
   $password=strtolower($password);
  }
  if(($account=$this->LookupAccount($user))<count($this->accounts))
  {
   if($this->accounts[$account][\"password\"]==\"*\")
    return(\"account was deleted\");
   if($this->accounts[$account][\"password\"]
      ==AccountCryptpassword( $password,
               substr($this->accounts[$account][\"password\"],0,2)))
    return(\"\");
   else
    return(\"password does not match\");
  }
  return(\"unknown user\");
 }

  Function AddAccessAccount($user,$password)
 {
  if($this->convert_to_lower_case)
  {
   $user=strtolower($user);
   $password=strtolower($password);
  }
  $account=count($this->accounts);
  $this->accounts[$account][\"user\"]=$user;
  $this->accounts[$account][\"password\"]=AccountCryptpassword($password,\"\");
  return($account);
 }

  Function SaveAccessAccounts()
 {
  global $php_errormsg;   if($this->password_file==\"\")
   return(\"it was not defined the password file\");
  if(($file=@fopen($this->password_file,\"w\"))==0)
   return(\"can not open password file \\\"$password_file\\\" ($php_errormsg)\");
  for($account=0;$account<count($this->accounts);$account  )
  {
   $user=$this->accounts[$account][\"user\"];
   if($this->convert_to_lower_case)
    $user=strtolower($user);
   if(fputs($file,sprintf(\"%s:%s\\n\",$user,$this->accounts[$account][\"password\"]))==0)
    return(\"can not write to password file \\\"$password_file\\\" ($php_errormsg)\");
  }
  fclose($file);
  return(\"\");
 }

  Function DeleteAccount($user)
 {
  if($this->convert_to_lower_case)
   $user=strtolower($user);
  if(($account=$this->LookupAccount($user))<count($this->accounts))
  {
   if($this->accounts[$account][\"password\"]!=\"*\")
   {
    $this->accounts[$account][\"password\"]=\"*\";
    return(\"\");
   }
   else
    return(\"account was already deleted\");
  }
  return(\"unknown user\");
 }

  Function ModifyAccessAccount($user,$password)
 {
  if($this->convert_to_lower_case)
  {
   $user=strtolower($user);
   $password=strtolower($password);
  }
  if(($account=$this->LookupAccount($user))>=count($this->accounts))
   return(\"unknown user\");
  $this->accounts[$account][\"password\"]=AccountCryptpassword($password,\"\");
  return(\"\");
 } }; ?><?php and?>