Class-that-allows-the-PHP-developer-to-create-and-manage-UNIX-like


            password files suitable for use as Apache authentication password files. 
Function AccountCryptPassword($password,$salt) 
{ 
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 { 
 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($account=0;$accountaccounts);$account++) 
 { 
 if($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($user))accounts)) 
 { 
 if($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($account=0;$accountaccounts);$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($user))accounts)) 
 { 
 if($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( ""); 
} 
}; 
?>
File Directory Php
