PHP 8.1 Probleme

[simonsinus]

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in redaxo/src/addons/yform_spam_protection/lib/yform/value/spam_protection.php on line 75

Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in redaxo/src/addons/yform_spam_protection/lib/yform/value/spam_protection.php on line 21

[simonsinus]

Mögliche Lösung

Datei ersetzen:
redaxo/src/addons/yform_spam_protection/lib/yform/value/spam_protection.php
`<?php

class rex_yform_value_spam_protection extends rex_yform_value_abstract
{
public function postValidateAction(): void
{
rex_login::startSession();

    $debug = (int)$this->getElement(4);
    $session_timestamp_key = "spamfilter".$this->params["form_name"];
    $session_timestamp = rex_request::session($session_timestamp_key, 'int', 0);
    $form_timestamp = rex_request($this->getFieldId()."_microtime", 'int', false);
    $js_enabled = rex_request($this->getFieldId()."_js_enabled", 'int', false);

    $ipv4 = filter_var($_SERVER['REMOTE_ADDR'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
    $ipv6 = filter_var($_SERVER['REMOTE_ADDR'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);

    $ip_whitelist = [];
    $config_ip_whitelist = rex_config::get('yform_spam_protection', 'ip_whitelist');
    if ($config_ip_whitelist !== ''){

#changed
$ip_whitelist = explode(',', ''.$config_ip_whitelist);
}

   rex_sql::factory()->setDebug($debug)->setQuery("DELETE FROM rex_tmp_yform_spam_protection_frequency  WHERE createdate < (NOW() - INTERVAL ".rex_config::get('yform_spam_protection', 'ip_block_timer')." SECOND)");


    $log = [];

    if ((null !== rex_backend_login::createUser()) && (rex_config::get('yform_spam_protection', 'ignore_user') === '1')) {
            $log[] = 'User is logged in';
    } else {
        if (!in_array($_SERVER['REMOTE_ADDR'], $ip_whitelist)) {
            $count = rex_sql::factory()->setDebug($debug)->getArray("SELECT count(`createdate`) AS `count` FROM rex_tmp_yform_spam_protection_frequency WHERE `ipv4` = INET_ATON(:ipv4) AND `ipv6` = :ipv6",
                [':ipv4' => $ipv4, ':ipv6' => $ipv6])[0]['count'];

            if ($this->params['send'] == 1) {
                if (rex_request($this->getFieldId()) != "") {
                    $this->params['warning'][$this->getId()] = $this->params['error_class'];
                    $this->params['warning_messages'][$this->getId()] = $this->getElement(3);
                    $log[] = "honeypot wurde ausgefüllt: " . rex_request($this->getFieldId());
                }

                if (rex_config::get('yform_spam_protection', 'ip_block_limit') < $count) {
                    rex_sql::factory()->setDebug($debug)->setQuery("INSERT INTO rex_tmp_yform_spam_protection_frequency (`ipv4`, `ipv6`, `createdate`, `was_blocked`) VALUES (INET_ATON(:ipv4), :ipv6, NOW(), 1)",
                        [':ipv4' => $ipv4, ':ipv6' => $ipv6]);
                    $this->params['warning'][$this->getId()] = $this->params['error_class'];
                    $this->params['warning_messages'][$this->getId()] = $this->getElement(3);
                    $log[] = "ip hat zu viele Versuche in kürzester Zeit unternommen";
                } else {
                    rex_sql::factory()->setDebug($debug)->setQuery("INSERT INTO rex_tmp_yform_spam_protection_frequency (`ipv4`, `ipv6`, `createdate`, `was_blocked`) VALUES (INET_ATON(:ipv4), :ipv6, NOW(), 0)",
                        [':ipv4' => $ipv4, ':ipv6' => $ipv6]);
                }

                if (($session_timestamp + rex_config::get('yform_spam_protection',
                            'timer_session')) > microtime(true)) {
                    $this->params['warning'][$this->getId()] = $this->params['error_class'];
                    $this->params['warning_messages'][$this->getId()] = $this->getElement(3);
                    $log[] = "session-microtime nicht eingehalten: $session_timestamp + " . rex_config::get('yform_spam_protection',
                            'timer_session') . " > " . microtime(true);
                } else {
                    $log[] = "session-microtime eingehalten: $session_timestamp + " . rex_config::get('yform_spam_protection',
                            'timer_session') . " > " . microtime(true);
                }

                if (($form_timestamp + rex_config::get('yform_spam_protection', 'timer_form')) > microtime(true)) {
                    $this->params['warning'][$this->getId()] = $this->params['error_class'];
                    $this->params['warning_messages'][$this->getId()] = $this->getElement(3);
                    $log[] = "formular-microtime nicht eingehalten: $form_timestamp + " . rex_config::get('yform_spam_protection',
                            'timer_form') . " > " . microtime(true);
                } else {
                    $log[] = "formular-microtime eingehalten: $form_timestamp + " . rex_config::get('yform_spam_protection',
                            'timer_form') . " > " . microtime(true);
                }
				#changed
				if (trim((string)rex_config::get('yform_spam_protection', 'use_stopforumspam'), '|')) {
					$result = file_get_contents('http://api.stopforumspam.org/api?ip='.$_SERVER['REMOTE_ADDR']);
					if ($result) {
						$doc = new DOMDocument();
						$doc->loadXML($result);
						if ($doc->getEtlementsByTagName('appears')[0]->nodeValue == 'yes') {
							$this->params['warning'][$this->getId()] = $this->params['error_class'];
							$this->params['warning_messages'][$this->getId()] = '{{ use_stopforumspam_ip_is_locked }}';
							$log[] = "Die IP Adresse ist gesperrt." . rex_request($this->getFieldId());
							rex_logger::factory()->log('info','Stop Forum Spam'.$_SERVER['REMOTE_ADDR'],[],__FILE__,__LINE__);
						}
					}
				}
				
            }
        } else {
            $log[] = 'IP was white-listed';
        }
    }

    if ($debug) {
        dump($log);
    }

    rex_request::setSession($session_timestamp_key, microtime(true));
}

public function enterObject()
{
    if ($this->needsOutput()) {
        $this->params['form_output'][$this->getId()] = $this->parse('value.spam_protection.tpl.php', []);
    }
}

public function getDescription(): string
{
    return 'spam_protection|honeypot|label(Bitte nicht ausfüllen)|Fehler(Ihre Anfrage wurde als Spam erkannt.)|Debugmodus(0/1)';
}

}
`

[alxndr-w]

@simonsinus reich's doch gleich als PR ein, dann wird's sicher zeitnah von mir oder jemandem hier übernommen.