Fully end to end encrypted anonymous chat program. Server only stores public key lookup for users and the encrypted messages. No credentials are transfered to the server, but kept in local browser storage. This allows 100% safe chatting. https://safechat.ch
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10 years ago
<?php
require_once("usertable.php");
try {
$user = $db->real_escape_string($_REQUEST['user']);
$pubkey = $db->real_escape_string($_REQUEST['pubkey']);
$q = $db->query("select * from user where name='$user' and pubkey='$pubkey';");
if ($q->num_rows==1) {
echo json_encode(true);
} elseif ($q->num_rows==0) {
$q = $db->query("insert into user (name, pubkey) values ('$user', '$pubkey');");
echo json_encode(true);
} else {
echo json_encode(false);
}
} catch (Exception $e) {
echo json_encode(false);
}
?>