Tuesday 9 April 2019

Hard-coded credentials in php file prevent static files loading

Answer


Answer





For the sake of learning no-framework php from scratch, I wrote an admin.php file which have the following code:





$not_auth_msg = "

Not Authorized

";
if($_GET['username'] == "admin") {
$pass = md5($_GET['password']);
if($pass != "21232f297a57a5a743894a0e4a801fc3") {
exit($not_auth_msg);
}
} else {
exit($not_auth_msg);

}

?>









..
..
..



Authorization works OK, but php 5.4's built in server replies "PHP Notice: Undefined index: username in ..." for each static file (bootstrap, jquery etc.), and the worse thing - the static files do not load!



What am I doing wrong?



Answer



Change the if with



if(isset($_GET['username']) && $_GET['username'] == "admin") {
...

}


That will solve your problem. When your not providing username that key is not set in $_GET and error notification if your php.ini file must be ALL i.e. notifications will be displayed/rendered.



No comments:

Post a Comment

php - file_get_contents shows unexpected output while reading a file

I want to output an inline jpg image as a base64 encoded string, however when I do this : $contents = file_get_contents($filename); print &q...