setTimestamp($present["timestamp"]); function hash_mac($mac) { $normalized_mac = str_replace('-', ':', strtolower($mac)); $hashed_mac = hash('sha256', $normalized_mac); return $hashed_mac; } function add_identity($name, $mac) { if ( preg_match('/' . $name_pattern . '/', $name) != 1 || preg_match('/' . $mac_pattern . '/', $mac) != 1 ) { http_response_code(400); die("Bad data"); } $hashed_mac = hash_mac($mac); $identities = json_decode(file_get_contents(IDENTITIES_FILE), true); $url = strtok($_SERVER['REQUEST_URI'], '?'); foreach ($identities as $identity) { if ($identity['name'] == $name) { header("Location: " . $url . "?dup_name", true, 303); exit(); } if ($identity['mac_hash'] == $hashed_mac) { header("Location: " . $url . "?dup_mac", true, 303); exit(); } } array_push($identities, array("name" => $name, "mac_hash" => $hashed_mac)); file_put_contents(IDENTITIES_FILE, json_encode($identities)); header("Location: " . $url . "?succ", true, 303); exit(); } function remove_identity($mac) { if (preg_match('/' . $mac_pattern . '/', $mac) != 1) { http_response_code(400); die("Bad data"); } $hashed_mac = hash_mac($mac); $identities = json_decode(file_get_contents(IDENTITIES_FILE), true); $new_identities = array(); foreach ($identities as $identity) { if ($identity['mac_hash'] != $hashed_mac) { array_push($new_identities, $identity); } file_put_contents(IDENTITIES_FILE, json_encode($new_identities)); header("Location: " . strtok($_SERVER['REQUEST_URI'], '?'), true, 303); exit(); } } if ($_SERVER['REQUEST_METHOD'] == "POST") { if ( isset($_POST['name']) && isset($_POST['mac']) ) { add_identity($_POST['name'], $_POST['mac']); } else if (isset($_POST['remove-mac'])) { remove_identity($_POST['remove-mac']); } } ?> <?php echo $page_title; ?>

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