<?php require 'flag.php'; print '<html>'; print '<head><title>5dm</title></head>'; print '<body>'; if (isset($_POST['name']) and isset($_POST['password'])) { if ($_POST['name'] == $_POST['password']) { print 'Your password can not be your name.'; } else if (sha1($_POST['name']) === sha1($_POST['password'])) { print 'Flag: '.$flag; die; } else { print 'Invalid password.'; } } print '<form method="post">'; print 'Name: <input type="text" name="name"/><br/>'; print 'Password: <input type="text" name="password" /><br/>'; print '<input type="submit"/>'; print '</form>'; print '<a href="./index.txt">source</a>'; print '</body>'; print '</html>'; ?>
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