478 lines
10 KiB
PHP
478 lines
10 KiB
PHP
<?php
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namespace WPMailSMTP\Providers\PepipostAPI;
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use WPMailSMTP\MailCatcherInterface;
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use WPMailSMTP\Options as PluginOptions;
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use WPMailSMTP\Providers\MailerAbstract;
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use WPMailSMTP\WP;
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/**
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* Pepipost API mailer.
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*
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* @since 1.8.0 Pepipost - SendGrid migration API.
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* @since 2.2.0 Rewrote this class to use native Pepipost API.
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*/
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class Mailer extends MailerAbstract {
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/**
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* Which response code from HTTP provider is considered to be successful?
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*
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* @since 1.8.0
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*
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* @var int
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*/
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protected $email_sent_code = 202;
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/**
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* URL to make an API request to.
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*
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* @since 1.8.0
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* @since 2.2.0 Changed the API url to Pepipost API v5.
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*
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* @var string
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*/
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protected $url = 'https://api.pepipost.com/v5/mail/send';
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/**
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* Mailer constructor.
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*
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* @since 1.8.0
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* @since 2.2.0 Changed the API key header (API v5 changes).
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*
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* @param MailCatcherInterface $phpmailer The MailCatcher instance.
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*/
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public function __construct( $phpmailer ) {
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// We want to prefill everything from MailCatcher class, which extends PHPMailer.
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parent::__construct( $phpmailer );
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$this->set_header( 'api_key', $this->options->get( $this->mailer, 'api_key' ) );
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$this->set_header( 'content-type', 'application/json' );
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}
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/**
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* Redefine the way email body is returned.
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* By default we are sending an array of data.
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* Pepipost requires a JSON, so we encode the body.
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*
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* @since 1.8.0
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*
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* @return string
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*/
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public function get_body() {
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$body = parent::get_body();
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return wp_json_encode( $body );
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}
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/**
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* Set the FROM header of the email.
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*
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* @since 1.8.0
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* @since 2.2.0 Changed the attribute names (API v5 changes).
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*
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* @param string $email From mail.
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* @param string $name From name.
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*/
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public function set_from( $email, $name = '' ) {
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if ( ! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
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return;
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}
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$from['email'] = $email;
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if ( ! empty( $name ) ) {
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$from['name'] = $name;
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}
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$this->set_body_param(
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[
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'from' => $from,
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]
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);
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}
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/**
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* Set the names/emails of people who will receive the email.
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*
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* @since 1.8.0
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* @since 2.2.0 change the attribute names (API v5 changes).
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*
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* @param array $recipients List of recipients: cc/bcc/to.
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*/
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public function set_recipients( $recipients ) {
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if ( empty( $recipients ) ) {
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return;
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}
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$data = [];
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if ( ! empty( $recipients['to'] ) ) {
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$data['to'] = $this->prepare_list_of_to_emails( $recipients['to'] );
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}
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if ( ! empty( $recipients['cc'] ) ) {
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$data['cc'] = $this->prepare_list_of_emails( $recipients['cc'] );
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}
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if ( ! empty( $recipients['bcc'] ) ) {
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$data['bcc'] = $this->prepare_list_of_emails( $recipients['bcc'] );
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}
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$this->set_body_personalizations( $data );
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}
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/**
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* Set the email content.
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* Pepipost API only supports HTML emails, so we have to replace new lines in plain text emails with <br>.
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*
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* @since 1.8.0
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* @since 2.2.0 Change the way the content is prepared (API v5 changes).
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*
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* @param array|string $content Email content.
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*/
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public function set_content( $content ) {
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if ( empty( $content ) ) {
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return;
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}
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$html = '';
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if ( ! is_array( $content ) ) {
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$html = $content;
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if ( $this->phpmailer->ContentType === 'text/plain' ) {
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$html = nl2br( $html );
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}
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} else {
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if ( ! empty( $content['html'] ) ) {
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$html = $content['html'];
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} elseif ( ! empty( $content['text'] ) ) {
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$html = nl2br( $content['text'] );
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}
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}
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$this->set_body_param(
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[
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'content' => [
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[
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'type' => 'html',
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'value' => $html,
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],
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],
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]
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);
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}
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/**
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* Redefine the way custom headers are processed for this mailer - they should be in body (personalizations).
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*
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* @since 1.8.0
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* @since 2.2.0 Change the way the headers are processed (API v5 changes).
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*
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* @param array $headers The email headers to be applied.
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*/
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public function set_headers( $headers ) {
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$valid_headers = [];
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foreach ( $headers as $header ) {
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$name = isset( $header[0] ) ? $header[0] : false;
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$value = isset( $header[1] ) ? $header[1] : false;
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$valid_headers[ $name ] = WP::sanitize_value( $value );
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}
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// Add custom PHPMailer-specific header.
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$valid_headers['X-Mailer'] = WP::sanitize_value( 'WPMailSMTP/Mailer/' . $this->mailer . ' ' . WPMS_PLUGIN_VER );
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if ( ! empty( $valid_headers ) ) {
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$this->set_body_personalizations( [ 'headers' => $valid_headers ] );
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}
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}
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/**
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* Pepipost API accepts an array of files content in body, so we will include all files and send.
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* Doesn't handle exceeding the limits etc, as this will be reported by the API response.
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*
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* @since 1.8.0
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* @since 2.2.0 Change the way the attachments are processed (API v5 changes).
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*
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* @param array $attachments The list of attachments data.
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*/
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public function set_attachments( $attachments ) {
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if ( empty( $attachments ) ) {
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return;
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}
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$data = $this->prepare_attachments( $attachments );
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if ( ! empty( $data ) ) {
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$this->set_body_param(
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[
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'attachments' => $data,
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]
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);
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}
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}
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/**
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* Prepare the attachments data for Pepipost API.
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*
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* @since 2.2.0
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*
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* @param array $attachments Array of attachments.
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*
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* @return array
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*/
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protected function prepare_attachments( $attachments ) {
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$data = [];
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foreach ( $attachments as $attachment ) {
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$file = false;
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/*
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* We are not using WP_Filesystem API as we can't reliably work with it.
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* It is not always available, same as credentials for FTP.
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*/
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try {
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if ( is_file( $attachment[0] ) && is_readable( $attachment[0] ) ) {
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$file = file_get_contents( $attachment[0] ); // phpcs:ignore
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}
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} catch ( \Exception $e ) {
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$file = false;
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}
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if ( $file === false ) {
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continue;
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}
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$data[] = [
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'content' => base64_encode( $file ), // phpcs:ignore
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'name' => $attachment[2],
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];
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}
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return $data;
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}
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/**
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* Set the reply-to property of the email.
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* Pepipost API only supports one reply_to email, so we take the first one and discard the rest.
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*
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* @since 1.8.0
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* @since 2.2.0 Change the way the reply_to is processed (API v5 changes).
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*
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* @param array $reply_to Name/email for reply-to feature.
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*/
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public function set_reply_to( $reply_to ) {
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if ( empty( $reply_to ) ) {
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return;
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}
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$email_array = array_shift( $reply_to );
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if ( empty( $email_array[0] ) ) {
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return;
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}
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$email = $email_array[0];
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if ( ! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
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return;
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}
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if ( ! empty( $email ) ) {
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$this->set_body_param(
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[
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'reply_to' => $email,
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]
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);
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}
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}
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/**
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* Pepipost API doesn't support sender or return_path params.
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* So we do nothing.
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*
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* @since 1.8.0
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*
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* @param string $from_email The from email address.
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*/
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public function set_return_path( $from_email ) {}
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/**
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* Get a Pepipost-specific response with a helpful error.
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*
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* @see https://developers.pepipost.com/email-api/email-api/sendemail#responses
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*
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* @since 1.8.0
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* @since 2.2.0 Change the way the response error message is processed (API v5 changes).
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*
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* @return string
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*/
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public function get_response_error() {
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$body = (array) wp_remote_retrieve_body( $this->response );
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$error = ! empty( $body['error'] ) ? $body['error'] : '';
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$info = ! empty( $body['info'] ) ? $body['info'] : '';
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$message = '';
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if ( ! empty( $this->error_message ) ) {
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$message = $this->error_message;
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} elseif ( is_string( $error ) ) {
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$message = $error . ( ( ! empty( $info ) ) ? ' - ' . $info : '' );
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} elseif ( is_array( $error ) ) {
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$message = '';
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foreach ( $error as $item ) {
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$message .= sprintf(
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'%1$s (%2$s - %3$s)',
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! empty( $item->description ) ? $item->description : esc_html__( 'General error', 'wp-mail-smtp' ),
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! empty( $item->message ) ? $item->message : esc_html__( 'Error', 'wp-mail-smtp' ),
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! empty( $item->field ) ? $item->field : ''
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) . PHP_EOL;
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}
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}
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return $message;
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}
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/**
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* Get mailer debug information, that is helpful during support.
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*
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* @since 1.8.0
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*
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* @return string
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*/
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public function get_debug_info() {
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$sendgrid_text[] = '<strong>Api Key:</strong> ' . ( $this->is_mailer_complete() ? 'Yes' : 'No' );
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return implode( '<br>', $sendgrid_text );
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}
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/**
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* Whether the mailer has all its settings correctly set up and saved.
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*
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* @since 1.8.0
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*
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* @return bool
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*/
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public function is_mailer_complete() {
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$options = $this->options->get_group( $this->mailer );
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// API key is the only required option.
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if ( ! empty( $options['api_key'] ) ) {
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return true;
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}
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return false;
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}
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/**
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* A special set method for Pepipost API "personalizations" attribute.
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* We are sending one email at a time, so we should set just the first
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* personalization item.
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*
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* Mainly used in set_headers and set_recipients.
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*
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* @see https://developers.pepipost.com/email-api/email-api/sendemail
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*
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* @since 2.2.0
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*
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* @param array $data The personalizations array of data (array of arrays).
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*/
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private function set_body_personalizations( $data ) {
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if ( empty( $data ) ) {
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return;
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}
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if ( ! empty( $this->body['personalizations'][0] ) ) {
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$this->body['personalizations'][0] = PluginOptions::array_merge_recursive(
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$this->body['personalizations'][0],
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$data
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);
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} else {
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$this->set_body_param(
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[
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'personalizations' => [
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$data,
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],
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]
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);
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}
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}
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/**
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* Prepare list of emails by filtering valid emails first.
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*
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* @since 2.2.0
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*
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* @param array $items A 2D array of email and name pair items (0 = email, 1 = name).
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*
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* @return array 2D array with 'email' keys.
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*/
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private function prepare_list_of_emails( $items ) {
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$valid_emails = array_filter(
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array_column( $items, 0 ),
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function ( $email ) {
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return filter_var( $email, FILTER_VALIDATE_EMAIL );
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}
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);
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return array_map(
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function( $email ) {
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return [ 'email' => $email ];
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},
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$valid_emails
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);
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}
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/**
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* Prepare list of TO emails by filtering valid emails first
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* and returning array of arrays (email, name).
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*
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* @since 2.2.0
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*
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* @param array $items A 2D array of email and name pair items (0 = email, 1 = name).
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*
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* @return array 2D array with 'email' and optional 'name' attributes.
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*/
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private function prepare_list_of_to_emails( $items ) {
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$data = [];
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foreach ( $items as $item ) {
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$email = filter_var( $item[0], FILTER_VALIDATE_EMAIL );
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if ( empty( $email ) ) {
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continue;
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}
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$pair['email'] = $email;
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if ( ! empty( $item[1] ) ) {
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$pair['name'] = $item[1];
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}
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$data[] = $pair;
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}
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return $data;
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}
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}
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