346 lines
11 KiB
PHP
346 lines
11 KiB
PHP
<?php
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namespace MailPoet\Cron\Workers;
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use MailPoet\Cron\CronHelper;
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use MailPoet\Mailer\Mailer;
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use MailPoet\Models\Newsletter;
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use MailPoet\Models\NewsletterLink;
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use MailPoet\Models\NewsletterStatistics;
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use MailPoet\Models\Setting;
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use MailPoet\Models\Subscriber;
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use MailPoet\Newsletter\Links\Links;
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use MailPoet\Newsletter\Renderer\Renderer;
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use MailPoet\Newsletter\Shortcodes\Shortcodes;
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use MailPoet\Util\Helpers;
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if(!defined('ABSPATH')) exit;
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class SendingQueue {
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public $mta_config;
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public $mta_log;
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public $processing_method;
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public $divider = '***MailPoet***';
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private $timer;
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const batch_size = 50;
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function __construct($timer = false) {
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$this->mta_config = $this->getMailerConfig();
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$this->mta_log = $this->getMailerLog();
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$this->processing_method = ($this->mta_config['method'] === 'MailPoet') ?
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'processBulkSubscribers' :
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'processIndividualSubscriber';
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$this->timer = ($timer) ? $timer : microtime(true);
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CronHelper::checkExecutionTimer($this->timer);
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}
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function process() {
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foreach($this->getQueues() as $queue) {
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$newsletter = Newsletter::findOne($queue->newsletter_id);
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if(!$newsletter) {
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$queue->delete();
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continue;
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}
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$newsletter = $newsletter->asArray();
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$newsletter['body'] = $this->getOrRenderNewsletterBody($queue, $newsletter);
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$queue->subscribers = (object) unserialize($queue->subscribers);
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if(!isset($queue->subscribers->processed)) {
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$queue->subscribers->processed = array();
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}
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if(!isset($queue->subscribers->failed)) {
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$queue->subscribers->failed = array();
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}
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$mailer = $this->configureMailer($newsletter);
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foreach(array_chunk($queue->subscribers->to_process, self::batch_size) as
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$subscribers_ids) {
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$subscribers = Subscriber::whereIn('id', $subscribers_ids)
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->findArray();
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$queue->subscribers = call_user_func_array(
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array(
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$this,
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$this->processing_method
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),
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array(
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$mailer,
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$newsletter,
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$subscribers,
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$queue
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)
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);
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}
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}
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}
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function getOrRenderNewsletterBody($queue, $newsletter) {
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// check if newsletter has been rendered, in which case return its contents
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// or render and save for future reuse
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if($queue->newsletter_rendered_body === null) {
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// render newsletter
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$rendered_newsletter = $this->renderNewsletter($newsletter);
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// extract and replace links
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$processed_newsletter = $this->processLinks(
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$this->joinObject($rendered_newsletter),
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$newsletter['id'],
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$queue->id
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);
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list($newsletter['body']['html'], $newsletter['body']['text']) =
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$this->splitObject($processed_newsletter);
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$queue->newsletter_rendered_body = json_encode($newsletter['body']);
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$queue->newsletter_rendered_body_hash = md5($newsletter['body']['text']);
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$queue->save();
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} else {
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$newsletter['body'] = json_decode($queue->newsletter_rendered_body);
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}
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return (array) $newsletter['body'];
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}
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function processBulkSubscribers($mailer, $newsletter, $subscribers, $queue) {
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foreach($subscribers as $subscriber) {
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$processed_newsletters[] =
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$this->processNewsletter($newsletter, $subscriber, $queue);
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$transformed_subscribers[] =
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$mailer->transformSubscriber($subscriber);
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}
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$result = $this->sendNewsletter(
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$mailer,
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$processed_newsletters,
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$transformed_subscribers
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);
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$subscribers_ids = Helpers::arrayColumn($subscribers, 'id');
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if(!$result) {
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$queue->subscribers->failed = array_merge(
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$queue->subscribers->failed,
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$subscribers_ids
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);
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} else {
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$newsletter_statistics =
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array_map(function($data) use ($newsletter, $subscribers_ids, $queue) {
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return array(
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$newsletter['id'],
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$subscribers_ids[$data],
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$queue->id
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);
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}, range(0, count($transformed_subscribers) - 1));
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$newsletter_statistics = Helpers::flattenArray($newsletter_statistics);
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$this->updateMailerLog();
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$this->updateNewsletterStatistics($newsletter_statistics);
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$queue->subscribers->processed = array_merge(
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$queue->subscribers->processed,
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$subscribers_ids
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);
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}
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$this->updateQueue($queue);
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$this->checkSendingLimit();
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CronHelper::checkExecutionTimer($this->timer);
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return $queue->subscribers;
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}
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function processIndividualSubscriber($mailer, $newsletter, $subscribers, $queue) {
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foreach($subscribers as $subscriber) {
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$this->checkSendingLimit();
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$processed_newsletter = $this->processNewsletter($newsletter, $subscriber, $queue);
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if(!$queue->newsletter_rendered_subject) {
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$queue->newsletter_rendered_subject = $processed_newsletter['subject'];
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}
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$transformed_subscriber = $mailer->transformSubscriber($subscriber);
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$result = $this->sendNewsletter(
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$mailer,
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$processed_newsletter,
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$transformed_subscriber
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);
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if(!$result) {
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$queue->subscribers->failed[] = $subscriber['id'];
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} else {
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$queue->subscribers->processed[] = $subscriber['id'];
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$newsletter_statistics = array(
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$newsletter['id'],
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$subscriber['id'],
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$queue->id
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);
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$this->updateMailerLog();
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$this->updateNewsletterStatistics($newsletter_statistics);
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}
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$this->updateQueue($queue);
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CronHelper::checkExecutionTimer($this->timer);
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}
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return $queue->subscribers;
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}
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function updateNewsletterStatistics($data) {
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return NewsletterStatistics::createMultiple($data);
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}
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function renderNewsletter($newsletter) {
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$renderer = new Renderer($newsletter);
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return $renderer->render();
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}
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function processLinks($text, $newsletter_id, $queue_id) {
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$links = new Links();
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list($text, $processed_links) = $links->replace($text);
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foreach($processed_links as $link) {
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// save extracted and processed links
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$newsletter_link = NewsletterLink::create();
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$newsletter_link->newsletter_id = $newsletter_id;
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$newsletter_link->queue_id = $queue_id;
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$newsletter_link->hash = $link['hash'];
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$newsletter_link->url = $link['url'];
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$newsletter_link->save();
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}
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return $text;
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}
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function processNewsletter($newsletter, $subscriber = false, $queue) {
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$data_for_shortcodes = array(
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$newsletter['subject'],
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$newsletter['body']['html'],
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$newsletter['body']['text']
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);
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$processed_newsletter = $this->replaceShortcodes(
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$newsletter,
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$subscriber,
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$this->joinObject($data_for_shortcodes)
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);
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$processed_newsletter = $this->replaceLinks(
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$newsletter['id'],
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$subscriber['id'],
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$queue->id,
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$processed_newsletter
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);
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list($newsletter['subject'],
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$newsletter['body']['html'],
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$newsletter['body']['text']
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) = $this->splitObject($processed_newsletter);
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return $newsletter;
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}
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function replaceLinks($newsletter_id, $subscriber_id, $queue_id, $body) {
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return str_replace(
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'[mailpoet_data]',
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sprintf('%s-%s-%s', $newsletter_id, $subscriber_id, $queue_id),
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$body
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);
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}
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function replaceShortcodes($newsletter, $subscriber, $body) {
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$shortcodes = new Shortcodes(
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$newsletter,
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$subscriber
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);
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return $shortcodes->replace($body);
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}
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function sendNewsletter($mailer, $newsletter, $subscriber) {
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return $mailer->mailer_instance->send(
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$newsletter,
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$subscriber
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);
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}
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function configureMailer($newsletter) {
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$sender['address'] = (!empty($newsletter['sender_address'])) ?
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$newsletter['sender_address'] :
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false;
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$sender['name'] = (!empty($newsletter['sender_name'])) ?
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$newsletter['sender_name'] :
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false;
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$reply_to['address'] = (!empty($newsletter['reply_to_address'])) ?
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$newsletter['reply_to_address'] :
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false;
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$reply_to['name'] = (!empty($newsletter['reply_to_name'])) ?
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$newsletter['reply_to_name'] :
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false;
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if(!$sender['address']) {
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$sender = false;
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}
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if(!$reply_to['address']) {
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$reply_to = false;
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}
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$mailer = new Mailer($method = false, $sender, $reply_to);
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return $mailer;
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}
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function getQueues() {
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return \MailPoet\Models\SendingQueue::orderByDesc('priority')
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->whereNull('deleted_at')
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->whereNull('status')
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->findResultSet();
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}
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function updateQueue($queue) {
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$queue = clone($queue);
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$queue->subscribers->to_process = array_diff(
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$queue->subscribers->to_process,
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array_merge(
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$queue->subscribers->processed,
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$queue->subscribers->failed
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)
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);
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$queue->subscribers->to_process = array_values(
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$queue->subscribers->to_process
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);
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$queue->count_processed =
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count($queue->subscribers->processed) + count($queue->subscribers->failed);
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$queue->count_to_process = count($queue->subscribers->to_process);
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$queue->count_failed = count($queue->subscribers->failed);
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$queue->count_total =
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$queue->count_processed + $queue->count_to_process;
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if(!$queue->count_to_process) {
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$queue->processed_at = date('Y-m-d H:i:s');
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$queue->status = 'completed';
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}
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$queue->subscribers = serialize((array) $queue->subscribers);
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$queue->save();
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}
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function updateMailerLog() {
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$this->mta_log['sent']++;
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return Setting::setValue('mta_log', $this->mta_log);
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}
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function getMailerConfig() {
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$mta_config = Setting::getValue('mta');
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if(!$mta_config) {
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throw new \Exception(__('Mailer is not configured.'));
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}
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return $mta_config;
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}
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function getMailerLog() {
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$mta_log = Setting::getValue('mta_log');
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if(!$mta_log) {
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$mta_log = array(
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'sent' => 0,
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'started' => time()
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);
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Setting::setValue('mta_log', $mta_log);
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}
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return $mta_log;
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}
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function checkSendingLimit() {
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$frequency_interval = (int) $this->mta_config['frequency']['interval'] * 60;
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$frequency_limit = (int) $this->mta_config['frequency']['emails'];
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$elapsed_time = time() - (int) $this->mta_log['started'];
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if($this->mta_log['sent'] === $frequency_limit &&
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$elapsed_time <= $frequency_interval
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) {
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throw new \Exception(__('Sending frequency limit reached.'));
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}
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if($elapsed_time > $frequency_interval) {
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$this->mta_log = array(
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'sent' => 0,
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'started' => time()
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);
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Setting::setValue('mta_log', $this->mta_log);
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}
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return;
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}
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private function joinObject($object = array()) {
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return implode($this->divider, $object);
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}
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private function splitObject($object = array()) {
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return explode($this->divider, $object);
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}
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} |