<?php
namespace MailPoet\Util\Notices;
if (!defined('ABSPATH')) exit;
use MailPoet\Settings\SettingsController;
use MailPoet\Settings\TrackingConfig;
use MailPoet\Subscription\Captcha;
use MailPoet\Util\Helpers;
use MailPoet\WP\Functions as WPFunctions;
use MailPoet\WP\Notice;
class HeadersAlreadySentNotice {
const DISMISS_NOTICE_TIMEOUT_SECONDS = YEAR_IN_SECONDS;
const OPTION_NAME = 'dismissed-headers-already-sent-notice';
/** @var SettingsController */
private $settings;
/** @var TrackingConfig */
private $trackingConfig;
/** @var WPFunctions */
private $wp;
public function __construct(
SettingsController $settings,
TrackingConfig $trackingConfig,
WPFunctions $wp
) {
$this->settings = $settings;
$this->trackingConfig = $trackingConfig;
$this->wp = $wp;
}
public function init($shouldDisplay) {
if (!$shouldDisplay) {
return null;
}
$captchaEnabled = $this->settings->get('captcha.type') === Captcha::TYPE_BUILTIN;
$trackingEnabled = $this->trackingConfig->isEmailTrackingEnabled();
if ($this->areHeadersAlreadySent()) {
return $this->display($captchaEnabled, $trackingEnabled);
}
}
public function areHeadersAlreadySent() {
return !get_transient(self::OPTION_NAME)
&& ($this->headersSent() || $this->isWhitespaceInBuffer());
}
protected function headersSent() {
return headers_sent();
}
public function isWhitespaceInBuffer() {
$content = ob_get_contents();
if (!$content) {
return false;
}
return preg_match('/^\s+$/', $content);
}
public function display($captchaEnabled, $trackingEnabled) {
if (!$captchaEnabled && !$trackingEnabled) {
return null;
}
$errorString = __('It looks like there\'s an issue with some of the PHP files on your website which is preventing MailPoet from functioning correctly. If not resolved, you may experience:', 'mailpoet');
$errorStringTracking = __('Inaccurate tracking of email opens and clicks', 'mailpoet');
$errorStringCaptcha = __('CAPTCHA not rendering correctly', 'mailpoet');
$errorString = $errorString . '<br>'
. ($trackingEnabled ? ('<br> - ' . $errorStringTracking) : '')
. ($captchaEnabled ? ('<br> - ' . $errorStringCaptcha) : '');
$howToResolveString = __('[link]Learn how to fix this issue and restore functionality[/link]', 'mailpoet');
$error = $errorString . '<br><br>' . Helpers::replaceLinkTags($howToResolveString, 'https://kb.mailpoet.com/article/325-the-captcha-image-doesnt-show-up', [
'target' => '_blank',
'data-beacon-article' => '5f20fb5904286306f8078acb',
'class' => 'button-primary',
]);
$extraClasses = 'mailpoet-dismissible-notice is-dismissible';
return Notice::displayError($error, $extraClasses, self::OPTION_NAME, true, false);
}
public function disable() {
$this->wp->setTransient(self::OPTION_NAME, true, self::DISMISS_NOTICE_TIMEOUT_SECONDS);
}
}