fwoppydwisk/diskfloppy.me
fwoppydwisk/diskfloppy.me
1
0
Fork 0
Code Issues Pull requests Projects Releases 3 Packages Activity Actions

Add very basic spam filter to guestbook

Browse source
This commit is contained in:
Frankie B 2023-01-26 22:12:08 +00:00
parent 6a8da5f22a
commit 21c1fa2b7c
1 changed files with 44 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
guestbook/submit.php
View file

@ -17,34 +17,53 @@
<div id="pagebody">
<div id="content">
<?php
$banned_keywords = array("financial", "finance", "stymn", "world4news", "invest");
$contains_keywords = array();
$name = strip_tags($_POST["name"]);
$msg = strip_tags($_POST["message"]);
if ($msg === "" || $name === "" || strip_tags(htmlspecialchars_decode($msg)) === "") {
echo '<b>You must provide both a name and message!</b>';
} else {
$db = new PDO("sqlite:/mnt/data1/webdata/floppydisk/guestbook.db");
$showinfo = isset($_POST["showinfo"]) ? true : false;
$showip = isset($_POST["showip"]) ? true : false;
$ip = $_SERVER['REMOTE_ADDR'];
$browser = get_browser(null, true);
$sys = $browser['parent'] . ' (' . $browser['platform_description'] . ' ' . $browser['platform_version'] . ')';
$data = array('name' => $name, 'message' => $msg, 'show_info' => $showinfo, 'show_ip' => $showip, 'ip' => $ip, 'submitted' => time(), 'sys' => $sys);
$insert = "INSERT INTO Entries (name, message, show_info, show_ip, ip, submitted, browser_info) VALUES (:name, :message, :show_info, :show_ip, :ip, :submitted, :browser)";
$stmt = $db->prepare($insert);
$stmt->bindParam(':name', $data['name'], PDO::PARAM_STR);
$stmt->bindParam(':message', $data['message'], PDO::PARAM_STR);
$stmt->bindParam(':show_info', $data['show_info'], PDO::PARAM_STR);
$stmt->bindParam(':show_ip', $data['show_ip'], PDO::PARAM_STR);
$stmt->bindParam(':ip', $data['ip'], PDO::PARAM_STR);
$stmt->bindParam(':submitted', $data['submitted'], PDO::PARAM_STR);
$stmt->bindParam(':browser', $data['sys'], PDO::PARAM_STR);
$stmt->execute();
echo '<b>Success!</b>';
$prohibit = false;
foreach ($banned_keywords as $keyword) {
if (strpos(strtolower($msg), $keyword) !== false) {
$prohibit = true;
array_push($contains_keywords, $keyword);
}
if (strpos(strtolower($name), $keyword) !== false) {
$prohibit = true;
array_push($contains_keywords, $keyword);
}
}
?><br><br>
if (!$prohibit) {
if ($msg === "" || $name === "" || strip_tags(htmlspecialchars_decode($msg)) === "") {
echo '<b>You must provide both a name and message!</b>';
} else {
$db = new PDO("sqlite:/mnt/data1/webdata/floppydisk/guestbook.db");
$showinfo = isset($_POST["showinfo"]) ? true : false;
$showip = isset($_POST["showip"]) ? true : false;
$ip = $_SERVER['REMOTE_ADDR'];
$browser = get_browser(null, true);
$sys = $browser['parent'] . ' (' . $browser['platform_description'] . ' ' . $browser['platform_version'] . ')';
$data = array('name' => $name, 'message' => $msg, 'show_info' => $showinfo, 'show_ip' => $showip, 'ip' => $ip, 'submitted' => time(), 'sys' => $sys);
$insert = "INSERT INTO Entries (name, message, show_info, show_ip, ip, submitted, browser_info) VALUES (:name, :message, :show_info, :show_ip, :ip, :submitted, :browser)";
$stmt = $db->prepare($insert);
$stmt->bindParam(':name', $data['name'], PDO::PARAM_STR);
$stmt->bindParam(':message', $data['message'], PDO::PARAM_STR);
$stmt->bindParam(':show_info', $data['show_info'], PDO::PARAM_STR);
$stmt->bindParam(':show_ip', $data['show_ip'], PDO::PARAM_STR);
$stmt->bindParam(':ip', $data['ip'], PDO::PARAM_STR);
$stmt->bindParam(':submitted', $data['submitted'], PDO::PARAM_STR);
$stmt->bindParam(':browser', $data['sys'], PDO::PARAM_STR);
$stmt->execute();
echo '<b>Success!</b>';
}
} else {
echo '<b>Your message could not be submitted as it (or your username) contains the following prohibited keywords:</b><br>'.PHP_EOL;
echo ' <pre>'.join(', ', $contains_keywords).'</pre>'.PHP_EOL;
}
?>
<br><br>
<a href="./">Back</a>
</div> <!-- content -->