89 lines
2.9 KiB
PHP
89 lines
2.9 KiB
PHP
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<?php
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$page_title = 'CZI Presence Detector';
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$present_file = 'present.json';
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$identities_file = 'identities.json';
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$name_pattern = "^([ \u00c0-\u01ffa-zA-Z'\-]){1,30}$";
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$mac_pattern = '^([0-9A-Fa-f]{2}[:-s]){5}([0-9A-Fa-f]{2})$';
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$present = json_decode(file_get_contents($present_file), true);
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$tz = 'Europe/Berlin';
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$datetime = new DateTime("now", new DateTimeZone($tz));
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$datetime->setTimestamp($present["timestamp"]);
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if ($_SERVER['REQUEST_METHOD'] == "POST") {
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if (
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preg_match($name_pattern, $_POST['name']) != 1 ||
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preg_match($mac_pattern, $_POST['mac'] != 1)
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) {
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http_response_code(400);
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die("Bad data");
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}
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$name = $_POST['name'];
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$normalized_mac = str_replace('-', ':', strtolower($_POST['mac']));
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$hashed_mac = hash('sha256', $normalized_mac);
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$identities = json_decode(file_get_contents($identities_file), true);
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foreach ($identities as $identity) {
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if (
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$identity['name'] == $name ||
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$identity['mac_hash'] == $hashed_mac
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) {
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// TODO show error to user
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die("Duplicate data");
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}
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}
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// TODO store new identity
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header("Location: /", true, 303);
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exit();
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}
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?>
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<html>
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<head>
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<title><?php echo $page_title; ?></title>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9" crossorigin="anonymous">
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<script src="bootstrap/js/bootstrap.bundle.min.js" integrity="sha384-HwwvtgBNo3bZJJLYd8oVXjrBZt8cqVSpeBNS5n7C8IVInixGAoxmnlMuBnhbgrkm" crossorigin="anonymous"></script>
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</head>
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<body>
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<nav class="navbar navbar-light bg-light justify-content-between" style="padding: 0">
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<span class="navbar-brand mb-0 h1" style="padding-left: 1rem"><?php echo $page_title; ?></span>
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</nav>
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<div id="content" style="padding: 2rem;">
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<h2>Jetzt gerade im CZI <small>(letztes Update von <?php echo $datetime->format('H:i:s d.m.Y'); ?>)</small></h2><br>
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<table class="table">
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<thead>
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<tr>
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<th>Name</th>
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</tr>
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</thead>
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<?php
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foreach ($present["names"] as $name) {
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?>
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<tr>
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<td><?php echo $name; ?></td>
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</tr>
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<?php
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}
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?>
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</table>
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<br><br><br>
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<div class="card" style="max-width: 30rem;">
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<div class="card-body">
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<h5 class="card-title">Neues Gerät tracken</h5>
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<form method="POST">
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<input class="form-control" type="text" name="name" pattern="<?php print($name_pattern); ?>" placeholder="Gebe hier deinen Namen ein" value="" /><br>
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<input class="form-control" type="text" name="mac" pattern="<?php print($mac_pattern); ?>" placeholder="Gebe hier die MAC-Adresse des zu trackenden Gerätes ein" value="" /><br>
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<button class="btn btn-primary" type="submit">Speichern</button>
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</form></div></div>
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</div>
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</body>
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</html>
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