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eme-mailer.php
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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
function eme_set_wpmail_html_content_type() {
return 'text/html';
}
// for backwards compat, the fromname and email are after the replyto and can be empty
function eme_send_mail( $subject, $body, $receiveremail, $receivername = '', $replytoemail = '', $replytoname = '', $fromemail = '', $fromname = '', $atts_arr = [], $custom_headers = [] ) {
$subject = preg_replace( '/(^\s+|\s+$)/m', '', $subject );
$res = true;
$message = '';
$debugtxt = '';
// nothing to send? Then act as if all is ok
if ( empty( $body ) || empty( $subject ) || empty( $receiveremail ) ) {
return [ $res, $message ];
}
if ( empty( $fromemail ) ) {
$fromemail = $replytoemail;
$fromname = $replytoname;
}
// if forced or fromemail is still empty
if ( get_option( 'eme_mail_force_from' ) || empty( $fromemail ) ) {
[$fromname, $fromemail] = eme_get_default_mailer_info();
}
// now the from should never be empty, so just check reply to again
if ( empty( $replytoemail ) ) {
$replytoemail = $fromemail;
}
if ( empty( $replytoname ) ) {
$replytoname = $fromname;
}
// get all mail options, put them in an array and apply filter
// if you change this array, don't forget to update the doc
$mailoptions = [
'fromMail' => $fromemail,
'fromName' => $fromname,
'toMail' => $receiveremail,
'toName' => $receivername,
'replytoMail' => $replytoemail,
'replytoName' => $replytoname,
'bcc_addresses' => get_option( 'eme_mail_bcc_address', '' ),
'mail_send_method' => get_option( 'eme_mail_send_method' ), // smtp, mail, sendmail, qmail, wp_mail
'send_html' => get_option( 'eme_mail_send_html' ), // true or false
'smtp_host' => get_option( 'eme_smtp_host', 'localhost' ),
'smtp_encryption' => get_option( 'eme_smtp_encryption' ), // none, tls or ssl
'smtp_verify_cert' => get_option( 'eme_smtp_verify_cert' ), // true or false
'smtp_port' => intval(get_option( 'eme_smtp_port', 25 )),
'smtp_auth' => get_option( 'eme_smtp_auth' ), // 0 or 1, false or true
'smtp_username' => get_option( 'eme_smtp_username', '' ),
'smtp_password' => get_option( 'eme_smtp_password', '' ),
'smtp_debug' => get_option( 'eme_smtp_debug' ), // true or false
];
$mailoptions = apply_filters( 'eme_filter_mail_options', $mailoptions );
if ( empty( $mailoptions['smtp_host'] ) ) {
$mailoptions['smtp_host'] = 'localhost';
}
if ( empty( $mailoptions['smtp_port'] ) ) {
$mailoptions['smtp_port'] = 25;
}
$bcc_addresses = preg_split( '/,|;/', $mailoptions['bcc_addresses'] );
// allow either an array of file paths or of attachment ids
$attachment_paths_arr = [];
if ( ! is_array( $atts_arr ) ) {
$atts_arr = [];
}
foreach ( $atts_arr as $attachment ) {
if ( ! empty( $attachment ) ) {
if ( is_numeric( $attachment ) ) {
$file_path = get_attached_file( $attachment );
if ( ! empty( $file_path ) && file_exists( $file_path ) ) {
$attach_name = eme_sanitize_attach_filename(basename($file_path));
if (!empty($attach_name))
$attachment_paths_arr[$attach_name] = $file_path;
}
} elseif ( is_array( $attachment ) ) {
// an array: the first element is the desired attach name, the second the real path of the file to attach
if ( file_exists( $attachment[1] ) ) {
if (eme_is_empty_string($attachment[0])) {
// if no desired name, we base ourselves on the real path but remove some ugly parts
$filename = pathinfo($attachment[1], PATHINFO_FILENAME);
$extension = pathinfo($attachment[1], PATHINFO_EXTENSION);
if (empty($extension))
$extension = "none";
// now remove parts of the file
$filename = preg_replace( '/(member-\d+|booking-\d+)-.*/', '$1', $filename );
$filename = preg_replace( '/.*-(qrcode.*)/', '$1', $filename );
$attach_name = eme_sanitize_attach_filename($filename.'.'.$extension);
$attachment_paths_arr[$attach_name] = $attachment[1];
} else {
$filename = eme_sanitize_attach_filename($attachment[0]);
$attachment_paths_arr[$filename] = $attachment[1];
}
}
} else {
// if it is not a numeric id, it is a file path (like for pdf tickets)
if ( file_exists( $attachment ) ) {
$filename = pathinfo($attachment, PATHINFO_FILENAME);
$extension = pathinfo($filename, PATHINFO_EXTENSION);
if (empty($extension))
$extension = "none";
// now remove parts of the file
$filename = preg_replace( '/(member-\d+|booking-\d+)-.*/', '$1', $filename );
$filename = preg_replace( '/.*-(qrcode.*)/', '$1', $filename );
$attach_name = eme_sanitize_attach_filename($filename.'.'.$extension);
$attachment_paths_arr[$attach_name] = $attachment;
}
}
}
}
if ( ! in_array( $mailoptions['mail_send_method'], [ 'smtp', 'mail', 'sendmail', 'qmail', 'wp_mail' ] ) ) {
$mailoptions['mail_send_method'] = 'wp_mail';
}
if ( $mailoptions['mail_send_method'] == 'wp_mail' ) {
// Set the correct mail headers (the first 2 are to try to avoid auto-repliers)
$headers[] = 'Auto-Submitted: auto-generated';
$headers[] = 'X-Auto-Response-Suppress: all';
$headers[] = 'From: '.$mailoptions['fromName'].' <'.$mailoptions['fromMail'].'>';
if ( !empty($mailoptions['replytoMail']) && eme_is_email($mailoptions['replytoMail'])) {
$headers[] = 'Reply-To: '.$mailoptions['replytoName'].' <'.$mailoptions['replytoMail'].'>';
}
if ( ! empty( $mailoptions['bcc_addresses'] ) ) {
foreach ( $bcc_addresses as $bcc_address ) {
if (eme_is_email($bcc_address)) {
$headers[] = 'Bcc: ' . trim( $bcc_address );
}
}
}
if ( ! empty( $custom_headers ) && is_array( $custom_headers ) ) {
foreach ( $custom_headers as $custom_header ) {
$headers[] = $custom_header;
}
}
// set the correct content type
if ( $mailoptions['send_html'] ) {
$body = eme_nl2br_save_html( $body );
// set the content-type header, wp-mail knows about this one
// it is cleaner than add_filter/remove_filter of wp_mail_content_type ...
$headers[] = 'Content-type: text/html';
//add_filter( 'wp_mail_content_type', 'eme_set_wpmail_html_content_type' );
}
// now send it
if ( ! empty( $mailoptions['toMail'] ) ) {
$res = wp_mail( $mailoptions['toMail'], $subject, $body, $headers, $attachment_paths_arr );
if ( ! $res ) {
$message = __( 'There were some problems while sending mail.', 'events-made-easy' );
}
} else {
$res = false;
$message = __( 'Empty email', 'events-made-easy' );
}
// Reset content-type to avoid conflicts
//if ( $mailoptions['send_html'] ) {
// remove_filter( 'wp_mail_content_type', 'eme_set_wpmail_html_content_type' );
//}
} else {
// we prefer the new location first
if ( file_exists( ABSPATH . WPINC . '/PHPMailer/PHPMailer.php' ) ) {
require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
$mail = new PHPMailer\PHPMailer\PHPMailer();
} else {
// for older wp instances (pre 5.5)
require_once ABSPATH . WPINC . '/class-phpmailer.php';
$mail = new PHPMailer();
}
$mail->ClearAllRecipients();
$mail->ClearAddresses();
$mail->ClearAttachments();
$mail->clearCustomHeaders();
$mail->clearReplyTos();
$mail->CharSet = 'utf-8';
// avoid the x-mailer header
$mail->XMailer = ' ';
// Set the correct mail headers (the first 2 are to try to avoid auto-repliers)
$mail->addCustomHeader('Auto-Submitted: auto-generated');
$mail->addCustomHeader('X-Auto-Response-Suppress: all');
// add custom headers
if ( ! empty( $custom_headers ) && is_array( $custom_headers ) ) {
foreach ( $custom_headers as $custom_header ) {
$mail->addCustomHeader( $custom_header );
}
}
//$mail->SetLanguage( 'en', __DIR__ . '/' );
if ( $mailoptions['mail_send_method'] == 'qmail' ) {
$mail->IsQmail();
} else {
$mail->Mailer = $mailoptions['mail_send_method'];
}
if ( $mailoptions['mail_send_method'] == 'smtp' ) {
// let us keep a normal smtp timeout ...
$mail->Timeout = 10;
$mail->Host = $mailoptions['smtp_host'];
// we set optional encryption and port settings
// but if the Host contains ssl://, tls:// or port info, it will take precedence over these anyway
// so it is not bad at all :-)
if ( $mailoptions['smtp_encryption'] == 'tls' || $mailoptions['smtp_encryption'] == 'ssl' ) {
$mail->SMTPSecure = $mailoptions['smtp_encryption'];
} else {
// if we don't want encryption, let's disable autotls too, since that might be a problem
$mail->SMTPAutoTLS = false;
}
if ( ! $mailoptions['smtp_verify_cert'] ) {
// let's disable certificate verification, but only for reserved ranges
// weirdly the private range filter doesn't contain 127.0.0.0/8, so we use reserved
// range which is still internal
$tmp_ip = $mail->Host;
// remove the possible ssl:// or tls://
$tmp_ip = preg_replace( '/.*?:\/\//', '', $tmp_ip );
// if the host setting is not an ip, resolve it and get the ip
if ( ! filter_var( $tmp_ip, FILTER_VALIDATE_IP ) ) {
$lookup = dns_get_record( $tmp_ip );
if ( $lookup ) {
foreach ( $lookup as $res ) {
if ( isset( $res['ip'] ) ) {
$tmp_ip = $res['ip'];
} elseif ( isset( $res['ipv6'] ) ) {
$tmp_ip = $res['ipv6'];
}
// we're only interested in 1 result
break;
}
}
}
$in_reserved_range = 0;
if ( filter_var( $tmp_ip, FILTER_VALIDATE_IP )
&& ! filter_var( $tmp_ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE ) ) {
// ip in the reserved range? then we still set it only if the ip is valid
$in_reserved_range = 1;
}
// so now we disable cert verification as requested and allow self signed
// but only for ip's in the reserved range
if ( $in_reserved_range ) {
$mail->SMTPOptions = [
'ssl' => [
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true,
],
];
}
}
$mail->Port = intval( $mailoptions['smtp_port'] );
if ( $mailoptions['smtp_auth'] ) {
$mail->SMTPAuth = true;
$mail->Username = $mailoptions['smtp_username'];
$mail->Password = $mailoptions['smtp_password'];
}
if ( $mailoptions['smtp_debug'] ) {
$mail->SMTPDebug = 2;
$mail->Debugoutput = function( $str, $level ) use (&$debugtxt) {
$debugtxt .= "$level: $str\n";
};
}
}
$mail->setFrom( $mailoptions['fromMail'], $mailoptions['fromName'] );
$altbody = eme_replacelinks( $body );
if ( $mailoptions['send_html'] ) {
$mail->isHTML( true );
// Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
$mail->AltBody = $mail->normalizeBreaks( $mail->html2text( $altbody ) );
$mail->Body = $mail->normalizeBreaks( eme_nl2br_save_html( $body ) );
} else {
$mail->Body = $mail->normalizeBreaks( $altbody );
}
$mail->Subject = $subject;
if ( ! empty( $mailoptions['replytoMail'] ) && eme_is_email($mailoptions['replytoMail'] ) ) {
$mail->addReplyTo( $mailoptions['replytoMail'], $mailoptions['replytoName'] );
}
if ( ! empty( $mailoptions['bcc_addresses'] ) ) {
foreach ( $bcc_addresses as $bcc_address ) {
if (eme_is_email($bcc_address)) {
$mail->addBCC( trim( $bcc_address ) );
}
}
}
if ( ! empty( $attachment_paths_arr ) ) {
foreach ( $attachment_paths_arr as $filename => $att ) {
$filename = is_string( $filename ) ? $filename : '';
$mail->addAttachment( $att, $filename );
}
}
if ( ! empty( $mailoptions['toMail'] ) ) {
$mail->addAddress( $mailoptions['toMail'], $mailoptions['toName'] );
if ( ! $mail->send() ) {
$res = false;
$message = $mail->ErrorInfo;
} else {
$res = true;
}
} else {
$res = false;
$message = __( 'Empty email', 'events-made-easy' );
}
}
// remove the phpmailer url added for some errors
$message = str_replace( 'https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting', '', $message );
return [ $res, $message, $debugtxt ];
}
function eme_db_insert_ongoing_mailing( $mailing_name, $subject, $body, $fromemail, $fromname, $replytoemail, $replytoname, $mail_text_html, $conditions = [] ) {
$now = current_time( 'mysql', false );
return eme_db_insert_mailing( $mailing_name, $now, $subject, $body, $fromemail, $fromname, $replytoemail, $replytoname, $mail_text_html, $conditions, "ongoing" );
}
function eme_db_insert_mailing( $mailing_name, $planned_on, $subject, $body, $fromemail, $fromname, $replytoemail, $replytoname, $mail_text_html, $conditions, $status = "initial" ) {
global $wpdb;
$mailing_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
if ( empty( $fromemail ) ) {
$fromemail = $replytoemail;
$fromname = $replytoname;
}
// if forced or fromemail is still empty
if ( get_option( 'eme_mail_force_from' ) || empty( $fromemail ) ) {
[$fromname, $fromemail] = eme_get_default_mailer_info();
}
// now the from should never be empty, so just check reply to again
if ( empty( $replytoemail ) ) {
$replytoemail = $fromemail;
}
if ( empty( $replytoname ) ) {
$replytoname = $fromname;
}
$now = current_time( 'mysql', false );
$mailing = [
'name' => mb_substr( $mailing_name, 0, 255 ),
'planned_on' => $planned_on,
'status' => $status,
'subject' => mb_substr( $subject, 0, 255 ),
'body' => $body,
'fromemail' => $fromemail,
'fromname' => mb_substr( $fromname, 0, 255 ),
'replytoemail' => $replytoemail,
'replytoname' => mb_substr( $replytoname, 0, 255 ),
'mail_text_html' => $mail_text_html,
'creation_date' => $now,
'conditions' => eme_serialize( $conditions ),
];
// add userid if possible
$current_userid = get_current_user_id();
if (!empty($current_userid)) {
$mailing['created_by'] = $current_userid;
}
if ( $wpdb->insert( $mailing_table, $mailing ) === false ) {
return false;
} else {
return $wpdb->insert_id;
}
}
function eme_queue_fastmail( $subject, $body, $fromemail, $fromname, $receiveremail, $receivername, $replytoemail, $replytoname, $mailing_id = 0, $person_id = 0, $member_id = 0, $atts_arr = [] ) {
return eme_queue_mail( $subject, $body, $fromemail, $fromname, $receiveremail, $receivername, $replytoemail, $replytoname, $mailing_id, $person_id, $member_id, $atts_arr, 1 );
}
function eme_queue_mail( $subject, $body, $fromemail, $fromname, $receiveremail, $receivername, $replytoemail = '', $replytoname = '', $mailing_id = 0, $person_id = 0, $member_id = 0, $atts_arr = [], $send_immediately = 0 ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
if ( eme_is_empty_string( $subject ) || eme_is_empty_string( $body ) ) {
// no mail to be sent: fake it
return true;
}
// no valid email? return false
if ( ! eme_is_email( $receiveremail ) ) {
return false;
}
$random_id = eme_random_id();
if ( ! get_option( 'eme_queue_mails' ) ) {
$send_immediately = 1;
}
// not needed if part of a mailing: then this is already done
if (!$mailing_id) {
if ( empty( $fromemail ) ) {
$fromemail = $replytoemail;
$fromname = $replytoname;
}
// if forced or fromemail is still empty
if ( get_option( 'eme_mail_force_from' ) || empty( $fromemail ) ) {
[$fromname, $fromemail] = eme_get_default_mailer_info();
}
// now the from should never be empty, so just check reply to again
if ( empty( $replytoemail ) ) {
$replytoemail = $fromemail;
}
if ( empty( $replytoname ) ) {
$replytoname = $fromname;
}
}
$now = current_time( 'mysql', false );
$mail = [
'subject' => mb_substr( $subject, 0, 255 ),
'body' => $body,
'fromemail' => $fromemail,
'fromname' => mb_substr( $fromname, 0, 255 ),
'receiveremail' => $receiveremail,
'receivername' => mb_substr( $receivername, 0, 255 ),
'replytoemail' => $replytoemail,
'replytoname' => mb_substr( $replytoname, 0, 255 ),
'mailing_id' => $mailing_id,
'person_id' => $person_id,
'member_id' => $member_id,
'attachments' => eme_serialize( $atts_arr ),
'creation_date' => $now,
'random_id' => $random_id,
];
// add userid if possible
if (!empty($current_userid)) {
$mail['created_by'] = $current_userid;
}
if ( $send_immediately ) {
// we add the mail to the queue as sent and send it immediately
$mail['status'] = 1;
$mail['sent_datetime'] = $now;
if ($wpdb->insert( $mqueue_table, $mail ) === false) {
return false;
} else {
$custom_headers = [ 'X-EME-mailid:' . $random_id ];
$mail_res_arr = eme_send_mail( $subject, $body, $receiveremail, $receivername, $replytoemail, $replytoname, $fromemail, $fromname, $atts_arr, $custom_headers );
if ( $mail_res_arr[0] ) {
return true;
} else {
return false;
}
}
} elseif ( $wpdb->insert( $mqueue_table, $mail ) === false ) {
return false;
} else {
return true;
}
}
function eme_mark_mail_ignored( $id ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$where = [];
$fields = [];
$where['id'] = intval( $id );
$fields['status'] = 4;
$fields['sent_datetime'] = current_time( 'mysql', false );
if ( $wpdb->update( $mqueue_table, $fields, $where ) === false ) {
return false;
} else {
return true;
}
}
function eme_mark_mail_sent( $id ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$where = [];
$fields = [];
$where['id'] = intval( $id );
$fields['status'] = 1;
$fields['sent_datetime'] = current_time( 'mysql', false );
if ( $wpdb->update( $mqueue_table, $fields, $where ) === false ) {
return false;
} else {
return true;
}
}
function eme_mark_mail_fail( $id, $error_msg = '' ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$where = [];
$fields = [];
$where['id'] = intval( $id );
$fields['status'] = 2;
$fields['error_msg'] = esc_sql( $error_msg );
$fields['sent_datetime'] = current_time( 'mysql', false );
if ( $wpdb->update( $mqueue_table, $fields, $where ) === false ) {
return false;
} else {
return true;
}
}
function eme_cancel_all_queued() {
global $wpdb;
// cancel all ongoing and planned mailings
$ongoing_mailings = eme_get_mailings(status: 'ongoing');
foreach ( $ongoing_mailings as $mailing) {
eme_cancel_mailing( $mailing['id'] );
}
$planned_mailings = eme_get_mailings(status: 'planned');
foreach ( $planned_mailings as $mailing) {
eme_cancel_mailing( $mailing['id'] );
}
// cancel individual mails
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = "UPDATE $mqueue_table WHERE status=3 WHERE status=0";
$wpdb->query( $sql );
}
function eme_get_queued_count() {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
// the queued count is to know how much mails are left unsent in the queue
$sql = "SELECT COUNT(*) FROM $mqueue_table WHERE status=0";
$count = $wpdb->get_var( $sql );
// now also include planned mailings
$planned_mailings = eme_get_mailings(status: 'planned');
foreach ($planned_mailings as $mailing) {
// older mailings inserted the mails directly and not update the stats
// newer mailings only set the planned stats and update the receivers the moment the mailing starts
if (empty($mailing['stats'])) {
$stats = eme_get_mailing_stats( $mailing['id'] );
} else {
$stats = eme_unserialize( $mailing['stats'] );
}
$count += $stats['planned'];
}
return $count;
}
function eme_get_queued( $now ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
// we take only the queued mails with status=0 where either the planning date for the mailing has passed (so we know those can be send) or that are not part of a mailing
$sql = "SELECT $mqueue_table.* FROM $mqueue_table LEFT JOIN $mailings_table ON $mqueue_table.mailing_id=$mailings_table.id WHERE $mqueue_table.status=0 AND ($mqueue_table.mailing_id=0 OR ($mqueue_table.mailing_id>0 and $mailings_table.planned_on<'$now'))";
$eme_cron_queue_count = intval( get_option( 'eme_cron_queue_count' ) );
if ( $eme_cron_queue_count > 0 ) {
$sql .= " LIMIT $eme_cron_queue_count";
}
return $wpdb->get_results( $sql, ARRAY_A );
}
function eme_rest_send_queued( WP_REST_Request $request ) {
$force_interval = $request['interval'];
//if (defined('REST_REQUEST')) {
// return new WP_REST_Response( $force_interval, 200 );
//}
if (is_numeric($force_interval))
eme_send_queued($force_interval);
}
function eme_send_queued($force_interval=0) {
// we'll build in a safety precaution to make sure to never surpass the schedule duration
$start_time = time();
if (!$force_interval || !is_numeric($force_interval)) {
$scheduled = wp_get_schedule( 'eme_cron_send_queued' );
if (!$scheduled) { // issue with wp cron? Then take 1 hour, to make sure this still runs ok
$scheduled = 'hourly';
}
$wp_schedules = wp_get_schedules();
$interval = $wp_schedules[ $scheduled ]['interval'];
// let's keep 5 seconds to ourselves (see at the end of this function)
$interval -= 5;
} else {
$interval = $force_interval-5;
}
$eme_mail_send_html = get_option( 'eme_mail_send_html' );
$eme_mail_sleep = intval( get_option( 'eme_mail_sleep' ) );
if ( $eme_mail_sleep >= 1000000 ) {
$eme_mail_sleep_seconds = intval( $eme_mail_sleep / 1000000 );
$eme_mail_sleep_useconds = $eme_mail_sleep % 1000000;
} elseif ( $eme_mail_sleep > 0 ) {
$eme_mail_sleep_seconds = 0;
$eme_mail_sleep_useconds = $eme_mail_sleep;
} else {
$eme_mail_sleep_seconds = 0;
$eme_mail_sleep_useconds = 0;
}
// we use $now as an argument for eme_get_passed_planned_mailingids and eme_get_queued
// Reason: since eme_check_mailing_receivers can take some time, we want to make sure that
// both eme_get_passed_planned_mailingids and eme_get_queued are talking about the same 'past'
$eme_date_obj_now = new ExpressiveDate( 'now', EME_TIMEZONE );
$now = $eme_date_obj_now->getDateTime();
// for all planned mailings in the passed: re-evaluate the receivers
// since we mark the mailing as ongoing afterwards, this re-evalution only happens once
// and as such doesn't get in the way of eme_get_queued doing it's work
$passed_planned_mailings = eme_get_passed_planned_mailingids( $now );
foreach ( $passed_planned_mailings as $mailing_id ) {
// the next function call can take a while
eme_check_mailing_receivers( $mailing_id );
eme_mark_mailing_ongoing( $mailing_id );
}
// check if tracking is required and possible (meaning: only for html mails)
if ( $eme_mail_send_html && get_option( 'eme_mail_tracking' ) ) {
$add_tracking = true;
} else {
$add_tracking = false;
}
// now handle any queued mails
$mails = eme_get_queued( $now );
foreach ( $mails as $mail ) {
if ( empty( $mail['receiveremail'] ) ) {
eme_mark_mail_ignored( $mail['id'] );
continue; // the continue-statement continues the higher foreach-loop
}
$body = $mail['body'];
if (eme_is_serialized( $mail['attachments'] )) {
$atts = eme_unserialize( $mail['attachments'] );
} else {
$atts = [];
}
if ( $add_tracking && ! empty( $mail['random_id'] ) ) {
$track_url = eme_tracker_url( $mail['random_id'] );
$track_html = "<img src='$track_url' alt=''>";
// if a closing body-tag is present, add it before that
// otherwise add it to the end
if ( strstr( $body, '</body>' ) ) {
$body = str_replace( '</body>', $track_html . '</body>', $body );
} else {
$body .= $track_html;
}
}
$custom_headers = [ 'X-EME-mailid:' . $mail['random_id'] ];
$mail_res_arr = eme_send_mail( $mail['subject'], $body, $mail['receiveremail'], $mail['receivername'], $mail['replytoemail'], $mail['replytoname'], $mail['fromemail'], $mail['fromname'], $atts, $custom_headers );
if ( $mail_res_arr[0] ) {
eme_mark_mail_sent( $mail['id'] );
} else {
eme_mark_mail_fail( $mail['id'], $mail_res_arr[1] );
}
// we'll build in a safety precaution to make sure to never surpass the schedule duration
// this is only usefull if the sleep is configured, since otherwise mails are send immediately, but just to be sure ...
$cur_time = time();
if ( $cur_time - $start_time > $interval ) {
break;
}
// now sleep if wanted and the send the next mail
if ( $eme_mail_sleep_seconds > 0 ) {
sleep( $eme_mail_sleep_seconds );
}
if ( $eme_mail_sleep_useconds > 0 ) {
usleep( $eme_mail_sleep_useconds );
}
}
// and for the mailings that were marked ongoing, mark them as finished if appropriate
// thanks to the fact we substraced 5 seconds from the $interval, we always have time to finish this
$ongoing_mailings = eme_get_mailings(status: 'ongoing');
foreach ( $ongoing_mailings as $mailing) {
if ( eme_count_mails_to_send( $mailing['id'] ) == 0 ) {
eme_mark_mailing_completed( $mailing['id'] );
}
}
}
function eme_get_passed_planned_mailingids( $now ) {
global $wpdb;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = "SELECT id FROM $mailings_table WHERE status='planned' AND planned_on<'$now'";
return $wpdb->get_col( $sql );
}
function eme_mark_mailing_planned( $mailing_id, $planned_count ) {
global $wpdb;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$stats = [
'planned' => $planned_count,
'sent' => 0,
'failed' => 0,
'cancelled' => 0,
'ignored' => 0,
'total_read_count' => 0,
];
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='planned', stats=%s WHERE id=%d", eme_serialize( $stats ), $mailing_id );
$wpdb->query( $sql );
}
function eme_mark_mailing_ongoing( $mailing_id ) {
global $wpdb;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='ongoing' WHERE id=%d", $mailing_id );
$wpdb->query( $sql );
}
function eme_mark_mailing_completed( $mailing_id ) {
global $wpdb;
$stats = eme_get_mailing_stats( $mailing_id );
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='completed', stats=%s WHERE id=%d", eme_serialize( $stats ), $mailing_id );
$wpdb->query( $sql );
if ( $stats['failed'] > 0 ) {
$mailing = eme_get_mailing( $mailing_id );
$failed_subject = __( 'Mailing completed with errors', 'events-made-easy' );
$failed_body = sprintf( __( 'Mailing "%s" completed with %d errors, please check the mailing report', 'events-made-easy' ), $mailing['name'], $stats['failed'] );
eme_send_mail( $failed_subject, $failed_body, $mailing['replytoemail'], $mailing['replytoname'], $mailing['replytoemail'], $mailing['replytoname'] );
}
}
function eme_archive_mailing( $mailing_id ) {
global $wpdb;
$mailing = eme_get_mailing( $mailing_id );
if ( $mailing['status'] == 'planned' || $mailing['status'] == 'ongoing' ) {
return;
}
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
if ( $mailing['status'] == 'completed' ) {
// for completed mailings, the stats no longer change
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='archived' WHERE id=%d", $mailing_id );
} else {
$stats = eme_serialize( eme_get_mailing_stats( $mailing_id ) );
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='archived', stats=%s WHERE id=%d", $stats, $mailing_id );
}
$wpdb->query( $sql );
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "DELETE FROM $queue_table WHERE mailing_id=%d", $mailing_id );
$wpdb->query( $sql );
}
function eme_mailing_retry_failed( $id ) {
global $wpdb;
$mqueue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$where = [];
$fields = [];
$where['mailing_id'] = intval( $id );
$where['status'] = 2;
$fields['status'] = 0;
if ( $wpdb->update( $mqueue_table, $fields, $where ) === false ) {
return false;
} else {
return true;
}
}
// for GDPR CRON
function eme_archive_old_mailings() {
global $wpdb;
$archive_old_mailings_days = get_option( 'eme_gdpr_archive_old_mailings_days' );
if ( empty( $archive_old_mailings_days ) ) {
return;
} else {
$archive_old_mailings_days = abs( $archive_old_mailings_days );
}
$eme_date_obj = new ExpressiveDate( 'now', EME_TIMEZONE );
$old_date = $eme_date_obj->minusDays( $archive_old_mailings_days )->getDateTime();
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = "SELECT id FROM $mailings_table WHERE creation_date < '$old_date' AND (status='completed' OR status='cancelled')";
$mailing_ids = $wpdb->get_col( $sql );
foreach ( $mailing_ids as $mailing_id ) {
eme_archive_mailing( $mailing_id );
}
// now remove old mails not belonging to a specific mailing
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = "DELETE FROM $queue_table WHERE mailing_id=0 AND creation_date < '$old_date'";
$wpdb->query( $sql );
}
function eme_cancel_mail( $mail_id ) {
global $wpdb;
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "UPDATE $queue_table SET status=3 WHERE status=0 AND id=%d", $mail_id );
$wpdb->query( $sql );
}
function eme_cancel_mailing( $mailing_id ) {
global $wpdb;
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "UPDATE $queue_table SET status=3 WHERE status=0 AND mailing_id=%d", $mailing_id );
$wpdb->query( $sql );
$stats = eme_serialize( eme_get_mailing_stats( $mailing_id ) );
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = $wpdb->prepare( "UPDATE $mailings_table SET status='cancelled', stats=%s WHERE id=%d", $stats, $mailing_id );
$wpdb->query( $sql );
}
function eme_delete_mail( $id ) {
global $wpdb;
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "DELETE FROM $queue_table WHERE id=%d", $id );
$wpdb->query( $sql );
}
function eme_delete_mailing_mails( $id ) {
global $wpdb;
$queue_table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "DELETE FROM $queue_table WHERE mailing_id=%d", $id );
$wpdb->query( $sql );
}
function eme_delete_mailing( $id ) {
global $wpdb;
eme_delete_mailing_mails( $id );
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = $wpdb->prepare( "DELETE FROM $mailings_table WHERE id=%d", $id );
$wpdb->query( $sql );
}
function eme_get_mail( $id ) {
global $wpdb;
$table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "SELECT * FROM $table WHERE id=%d", $id );
return $wpdb->get_row( $sql, ARRAY_A );
}
function eme_get_mailing( $id ) {
global $wpdb;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$sql = $wpdb->prepare( "SELECT * FROM $mailings_table WHERE id=%d", $id );
return $wpdb->get_row( $sql, ARRAY_A );
}
function eme_get_mailings( $status = '', $search_text = '' ) {
global $wpdb;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
$mailing_states = eme_mailing_localizedstates();
if ( !empty( $status ) && array_key_exists( $status, $mailing_states ) ) {
$where = " WHERE status='$status' ";
} else {
$where = " WHERE status<>'archived' ";
}
if ( !empty($search_text)) {
$search_text = "%" . $wpdb->esc_like( $search_text ) . "%";
$sql = $wpdb->prepare("SELECT * FROM $mailings_table $where AND ( name LIKE %s OR subject LIKE %s ) ORDER BY planned_on,name", $search_text, $search_text);
} else {
$sql = "SELECT * FROM $mailings_table $where ORDER BY planned_on,name";
}
return $wpdb->get_results( $sql, ARRAY_A );
}
function eme_mail_states() {
$states = [
0 => 'planned',
1 => 'sent',
2 => 'failed',
3 => 'cancelled',
4 => 'ignored',
];
return $states;
}
function eme_mail_localizedstates() {
$states = [
0 => __( 'Planned', 'events-made-easy' ),
1 => __( 'Sent', 'events-made-easy' ),
2 => __( 'Failed', 'events-made-easy' ),
3 => __( 'Cancelled', 'events-made-easy' ),
4 => __( 'Ignored', 'events-made-easy' )
];
return $states;
}
function eme_mailing_localizedstates() {
$states = [
'archived' => __( 'Archived', 'events-made-easy' ),
'planned' => __( 'Planned', 'events-made-easy' ),
'ongoing' => __( 'Ongoing', 'events-made-easy' ),
'completed' => __( 'Completed', 'events-made-easy' ),
'cancelled' => __( 'Cancelled', 'events-made-easy' ),
'initial' => __( 'Initializing ...', 'events-made-easy' )
];
return $states;
}
function eme_count_mails_to_send( $mailing_id ) {
global $wpdb;
$table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = $wpdb->prepare( "SELECT COUNT(*) FROM $table WHERE status=0 AND mailing_id=%d", $mailing_id );
return $wpdb->get_var( $sql );
}
function eme_get_mailing_stats( $mailing_id = 0 ) {
global $wpdb;
$table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$sql = "SELECT COUNT(*) AS count,status FROM $table WHERE mailing_id=$mailing_id GROUP BY mailing_id,status";
$lines = $wpdb->get_results( $sql, ARRAY_A );
$res = [
'planned' => 0,
'sent' => 0,
'failed' => 0,
'cancelled' => 0,
'ignored' => 0,
'total_read_count' => 0,
];
$states = eme_mail_states();
foreach ( $lines as $line ) {
$status = $states[ $line['status'] ];
$res[ $status ] = $line['count'];
}
return $res;
}
function eme_mail_track( $random_id ) {
global $wpdb;
$table = EME_DB_PREFIX . EME_MQUEUE_TBNAME;
$mailings_table = EME_DB_PREFIX . EME_MAILINGS_TBNAME;
if ( ! empty( $random_id ) && get_option( 'eme_mail_tracking' ) ) {
// we'll randomly sleep between 0 and 20 times 0.1 seconds (100000 microseconds)
// so if 2 requests for the same id arrive at the same time, it will hopefully not do the select at the same time
// Without the random sleep, 2 request for the same id would cause the read_count in the mailings_table to be updated too much (nothing to worry about, but it wouldn't reflect reality)
// /usleep(rand(0, 20)*100000); // we do it in microseconds with random, is better than simple sleep(rand(0,2)) which could return the same result for rand too often
$sql = $wpdb->prepare( "SELECT * FROM $table WHERE random_id=%s", $random_id );
$queued_mail = $wpdb->get_row( $sql, ARRAY_A );
if ( $queued_mail ) {
// update the queue table when the mail was read for the first time
$eme_date_obj_now = new ExpressiveDate( 'now', EME_TIMEZONE );
// ignore if the same track arrives within the firt 2 minutes
$ignore = 0;
if ( ! eme_is_empty_datetime( $queued_mail['last_read_on'] ) ) {
$eme_date_obj_lastread = new ExpressiveDate( $queued_mail['last_read_on'], EME_TIMEZONE );
if ( $eme_date_obj_lastread->getDifferenceInMinutes( $eme_date_obj_now ) < 2 ) {
$ignore = 1;
}
}
if ( ! $ignore ) {
$now = $eme_date_obj_now->getDateTime();
// we add the read_count=0 to the SQL statement so we know that 2 identical queries arriving almost at the same time will not cause the same update
$sql = $wpdb->prepare( "UPDATE $table SET first_read_on=%s, last_read_on=%s, read_count=1 WHERE id = %d AND read_count=0", $now, $now, $queued_mail['id'] );
$res = $wpdb->query( $sql );
// update the mailing table with the count of times the mail was read
// read_count in the mailings_table is the unique read count for this mailing
if ( $res !== false ) {
if ( $res > 0 ) {
// res is >0, meaning a row was changed, so it was read for the first time
if ( $queued_mail['mailing_id'] > 0 ) {
$sql = $wpdb->prepare( "UPDATE $mailings_table SET read_count=read_count+1, total_read_count=total_read_count+1 WHERE id = %d", $queued_mail['mailing_id'] );
$wpdb->query( $sql );
}
} else {
// no row changed, meaning the mail was already read once, so do it without read_count=0 check
$sql = $wpdb->prepare( "UPDATE $table SET last_read_on=%s, read_count=read_count+1 WHERE id = %d", $now, $queued_mail['id'] );
$res = $wpdb->query( $sql );
if ( ! empty( $res ) && $queued_mail['mailing_id'] > 0 ) { // not false and >0
$sql = $wpdb->prepare( "UPDATE $mailings_table SET total_read_count=total_read_count+1 WHERE id = %d", $queued_mail['mailing_id'] );
$wpdb->query( $sql );
}
}
}
}
}
// always return a transparant image of 1x1
$eme_plugin_dir = eme_plugin_dir();
header( 'Content-Type: image/gif' );
//$image = file_get_contents($eme_plugin_dir.'images/1x1.gif');
//echo $image;
readfile( $eme_plugin_dir . 'images/1x1.gif' );
}
}
function eme_check_mailing_receivers( $mailing_id ) {
if ( ! $mailing_id ) {
return;
}
$mailing = eme_get_mailing( $mailing_id );
if ( ! $mailing || empty( $mailing['conditions'] ) ) {
return;
}
$conditions = eme_unserialize( $mailing['conditions'] );
// we delete all planned mails for the mailing and enter the mails anew, this allows us to have all mails with the latest content and receivers
// for newer versions of EME this delete no longer does anything since the individual mails are only inserted here when calling eme_update_mailing_receivers
eme_delete_mailing_mails( $mailing_id );
eme_update_mailing_receivers( $mailing['subject'], $mailing['body'], $mailing['fromemail'], $mailing['fromname'], $mailing['replytoemail'], $mailing['replytoname'], $mailing['mail_text_html'], $conditions, $mailing_id );
}
function eme_count_planned_mailing_receivers( $conditions, $mailing_id = 0) {
return eme_update_mailing_receivers( conditions: $conditions, mailing_id: $mailing_id, count_only: 1);
}