Simple and Easy Security, with txt file as user list and password. Easy to manage and adapt to your website. It cost free.
By : hermawan
<?php
/************************************************\
* Function Name : Security Made Easy *
* Creator : Hermawan Haryanto *
* Email : hermawan@codewalkers.com *
* Website : http://hermawan.com *
* License : GPL (General Public License) *
\***********************************************/
session_start();
class security {
var $usernames = Array ();
var $passwords = Array ();
var $error;
function security () {
$this->setAccountFile ("security.txt");
}
function setAccountFile ($file) {
$fp = fopen ($file,"r");
$content = fread ($fp,filesize ($file));
$contents = explode("\n", $content);
for ($i=0;$i<count($contents);$i++) {
if (!$this->isempty($contents[$i])) {
$accounts = explode("|", $contents[$i]);
if (!$this->isempty($accounts[0])) {
$this->usernames[] = $this->decode($accounts[0]);
$this->passwords[] = $this->decode($accounts[1]);
}
}
}
}
function secureme () {
global $_POST;
$forms = $_POST;
if (count($forms)<1) {
if (!$_SESSION || trim($_SESSION["loggedin"])=="") {
$this->showloginform();
exit();
}
} else {
if ($this->isempty($forms["username"])) $this->seterror("<li>Username is empty!</li>");
if ($this->isempty($forms["password"])) $this->seterror("<li>Password is empty!</li>");
if ($this->isempty($this->error)) {
if (in_array($forms["username"], $this->usernames)) {
for ($i=0;$i<count($this->usernames);$i++) {
if ($forms["username"]==$this->usernames[$i]) {
if ($forms["password"]!=$this->passwords[$i]) $this->seterror("<li>Username seems right but the password is wrong!</li>");
}
}
} else {
$this->seterror("<li>Username is not known!</li>");
}
}
if ($this->isempty($this->error)) {
$_SESSION["loggedin"] = "true";
Header("Location:".$forms["ref"]);
exit();
} else {
$this->showerror();
$this->showloginform();
exit();
}
}
}
function seterror($str) {
$this->error .= $str;
}
function showerror() {
print "<center><b>Error:</b><font color=#FF0000>$this->error</font></center>";
}
function isempty ($str) {
if (trim($str)=="") return true;
else return false;
}
function showloginform () {
print "<body><table width=100% height=100% border=0 cellpadding=0 cellspacing=0><tr><td align=center valign=middle><table width=250 border=0 cellpadding=4 cellspacing=1 bgcolor=#EEEEEE><tr><td align=center valign=middle><font size=-1 face=Tahoma, Verdana, Arial><strong>User Authentication</strong></font></td></tr><tr><td bgcolor=#FFFFFF><table width=100% border=0 cellspacing=0 cellpadding=2><form method=post><input type=hidden name=ref value=".$_SERVER["PHP_SELF"]."><tr><td width=75 align=right valign=middle><font size=-2 face=Tahoma, Verdana, Arial><strong>Username</strong></font></td><td width=5 align=center valign=middle><font size=-2 face=Tahoma, Verdana, Arial>:</font></td><td align=left valign=middle><font size=-2 face=Tahoma, Verdana, Arial> <input name=username type=text size=22></font></td></tr><tr><td width=75 align=right valign=middle><font size=-2 face=Tahoma, Verdana, Arial><strong>Password</strong></font></td><td width=5 align=center valign=middle><font size=-2 face=Tahoma, Verdana, Arial>:</font></td><td align=left valign=middle><font size=-2 face=Tahoma, Verdana, Arial> <input name=password type=password size=22></font></td></tr><tr><td width=75 align=right valign=middle><font size=-2 face=Tahoma, Verdana, Arial> </font></td><td width=5 align=center valign=middle><font size=-2 face=Tahoma, Verdana, Arial> </font></td><td align=left valign=middle><font size=-2 face=Tahoma, Verdana, Arial> <input name=action type=submit id=action value=LOGIN></font></td></tr></form></table></td></tr></table></td></tr></table></body>";
}
function encode ($str) {
return base64_encode ($str);
}
function decode ($str) {
return base64_decode ($str);
}
};
if (eregi("security.php", $_SERVER["PHP_SELF"])) {
$act = $_GET["act"];
switch ($act) {
case "encode" :
if ($_GET["str"]) {
$s = new security;
print $s->encode($str);
break;
} else {
Header("Location: http://www.dekap.com");
break;
}
case "logout" :
session_destroy();
Header("Location:".$_SERVER["HTTP_REFERER"]);
break;
default :
Header("Location: http://www.dekap.com");
break;
}
}
?>
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