132 lines
3.6 KiB
PHP
132 lines
3.6 KiB
PHP
<?php
|
|
// ===========================================
|
|
// FUNKTIONEN FÜR DISPOSABLE EMAIL CHECK
|
|
// ===========================================
|
|
|
|
function is_disposable_email($email, $blocklist_path = null) {
|
|
// Standard-Pfad zur lokalen Blocklist-Datei
|
|
if (!$blocklist_path) {
|
|
$blocklist_path = __DIR__ . '/disposable_email_blocklist.conf';
|
|
}
|
|
|
|
// Lade die Blocklist falls nötig
|
|
if (!file_exists($blocklist_path)) {
|
|
download_blocklist($blocklist_path);
|
|
}
|
|
|
|
// Lese alle Domains aus der Datei
|
|
$disposable_domains = file($blocklist_path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
|
|
|
|
// Extrahiere Domain aus der E-Mail-Adresse
|
|
$email_parts = explode('@', trim($email));
|
|
if (count($email_parts) != 2) {
|
|
return false;
|
|
}
|
|
|
|
$domain = strtolower($email_parts[1]);
|
|
|
|
// Prüfe ob Domain in der Liste steht
|
|
$ret = in_array($domain, $disposable_domains);
|
|
|
|
// Check, ob für Domain (mindestens) ein MX-Record existiert
|
|
if ($ret === false ) {
|
|
// MX-Record(s) abholen
|
|
getmxrr($domain, $mx_records, $mx_weight);
|
|
|
|
$mxs =[];
|
|
// Array zusammenstellen für Sortierung
|
|
for($i=0;$i<count($mx_records);$i++){
|
|
$mxs[$mx_records[$i]] = $mx_weight[$i];
|
|
}
|
|
|
|
if (count($mxs) == 0)
|
|
return true;
|
|
}
|
|
|
|
return false ;
|
|
}
|
|
|
|
function download_blocklist($file_path) {
|
|
// Alternative Liste: $url = 'https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/disposable_email_blocklist.conf';
|
|
$url = 'https://raw.githubusercontent.com/disposable/disposable-email-domains/master/domains.txt';
|
|
|
|
// echo "Lade Blocklist herunter...\n";
|
|
|
|
$content = file_get_contents($url);
|
|
if ($content === false) {
|
|
die("FEHLER: Konnte Blocklist nicht herunterladen von: $url\n");
|
|
}
|
|
|
|
// Zusätzliche lokale Liste der nicht zugelassenen Domains
|
|
$localContent = '';
|
|
if (file_exists(__DIR__ . '/localdomains.conf')) {
|
|
$localContent = file_get_contents(__DIR__ ."/localdomains.conf");
|
|
}
|
|
|
|
// Listen kombinieren
|
|
$content = $content ."\n" .$localContent;
|
|
|
|
if (file_put_contents($file_path, $content) === false) {
|
|
die("FEHLER: Konnte Blocklist nicht speichern: $file_path\n");
|
|
}
|
|
|
|
}
|
|
|
|
function update_blocklist_if_needed($blocklist_path = null, $max_age_hours = 1) {
|
|
if (!$blocklist_path) {
|
|
$blocklist_path = __DIR__ . '/disposable_email_blocklist.conf';
|
|
}
|
|
|
|
// Prüfe ob Datei existiert und wie alt sie ist
|
|
if (!file_exists($blocklist_path)) {
|
|
download_blocklist($blocklist_path);
|
|
return true;
|
|
}
|
|
|
|
$file_age = time() - filemtime($blocklist_path);
|
|
$max_age_seconds = $max_age_hours * 3600;
|
|
|
|
if ($file_age > $max_age_seconds) {
|
|
download_blocklist($blocklist_path);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function filter_disposable_emails($emails, $blocklist_path = null) {
|
|
$valid_emails = array();
|
|
|
|
foreach ($emails as $email) {
|
|
if (!is_disposable_email($email, $blocklist_path)) {
|
|
$valid_emails[] = $email;
|
|
}
|
|
}
|
|
|
|
return $valid_emails;
|
|
}
|
|
|
|
function get_email_domain($email) {
|
|
$email_parts = explode('@', trim($email));
|
|
return count($email_parts) === 2 ? strtolower($email_parts[1]) : '';
|
|
}
|
|
|
|
function validate_email_form($email) {
|
|
|
|
// Blocklist aktualisieren falls nötig (jede Stunde)
|
|
$updated = update_blocklist_if_needed();
|
|
|
|
if (is_disposable_email($email)) {
|
|
// echo "Wegwerfadresse\n";
|
|
return false;
|
|
}
|
|
|
|
// echo "Adresse gültig\n";
|
|
return true;
|
|
}
|
|
|
|
// Zum Testen
|
|
// validate_email_form("roland.keck@webxxx.de");
|
|
|
|
?>
|