File: /home/grainesdfo/www/wp-content/plugins/backwpup/inc/class-destination-email.php
<?php
// Swift Mailer v5.2.2
// http://swiftmailer.org/
// https://github.com/swiftmailer/swiftmailer
use Inpsyde\BackWPupShared\File\MimeTypeExtractor;
use PHPMailer\PHPMailer\PHPMailer;
class BackWPup_Destination_Email extends BackWPup_Destinations
{
public function option_defaults(): array
{
$default = [];
$default['emailaddress'] = sanitize_email(get_bloginfo('admin_email'));
$default['emailefilesize'] = 20;
$default['emailsndemail'] = sanitize_email(get_bloginfo('admin_email'));
$default['emailsndemailname'] = 'BackWPup ' . get_bloginfo('name');
$default['emailmethod'] = '';
$default['emailsendmail'] = ini_get('sendmail_path');
$default['emailhost'] = $_SERVER['SERVER_NAME'] ?? '';
$default['emailhostport'] = 25;
$default['emailsecure'] = '';
$default['emailuser'] = '';
$default['emailpass'] = '';
return $default;
}
public function edit_tab(int $jobid): void
{
?>
<h3 class="title"><?php esc_html_e('Email address', 'backwpup'); ?></h3>
<table class="form-table">
<tr>
<th scope="row"><label
for="emailaddress"><?php esc_html_e('To email address (separate with commas for multiple addresses)', 'backwpup'); ?></label>
</th>
<td>
<input name="emailaddress" id="emailaddress" type="text"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailaddress')); ?>"
class="regular-text"/>
</td>
</tr>
<tr>
<th scope="row"><label for="sendemailtest"><?php esc_html_e('Send test email', 'backwpup'); ?></label>
</th>
<td>
<button id="sendemailtest"
class="button secondary"><?php esc_html_e('Send test email', 'backwpup'); ?></button>
</td>
</tr>
</table>
<h3 class="title"><?php esc_html_e('Send email settings', 'backwpup'); ?></h3>
<table class="form-table">
<tr>
<th scope="row"><label
for="idemailefilesize"><?php esc_html_e('Maximum file size', 'backwpup'); ?></label></th>
<td>
<input id="idemailefilesize" name="emailefilesize" type="number" min="0" step="1"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailefilesize')); ?>"
class="small-text"/><?php esc_html_e('MB', 'backwpup'); ?>
<p class="description">
<?php esc_html_e(
'Maximum file size to be included in an email. 0 = unlimited',
'backwpup'
); ?><br/>
<strong><?php esc_html_e('Note', 'backwpup'); ?></strong>: <?php esc_html_e(
'Every email provider has different allowed attachment file sizes. If the backup archive exceeds this limit, the email will not be sent.',
'backwpup'
); ?><br/>
<?php esc_html_e('The recommended value is 20 MB.', 'backwpup'); ?>
</p>
</td>
</tr>
<tr>
<th scope="row"><label
for="emailsndemail"><?php esc_html_e('From email address', 'backwpup'); ?></label></th>
<td>
<input name="emailsndemail" type="text" id="emailsndemail"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailsndemail')); ?>"
class="regular-text"/>
</td>
</tr>
<tr>
<th scope="row"><label for="emailsndemailname"><?php esc_html_e('From name', 'backwpup'); ?></label>
</th>
<td>
<input name="emailsndemailname" type="text" id="emailsndemailname"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailsndemailname')); ?>"
class="regular-text"/>
</td>
</tr>
<tr>
<th scope="row"><label for="emailmethod"><?php esc_html_e('Sending method', 'backwpup'); ?></label>
</th>
<td>
<select id="emailmethod" name="emailmethod">
<?php
echo '<option value=""' . selected('', BackWPup_Option::get($jobid, 'emailmethod'), false) . '>' . esc_html__('Use WordPress settings', 'backwpup') . '</option>';
echo '<option value="mail"' . selected('mail', BackWPup_Option::get($jobid, 'emailmethod'), false) . '>' . esc_html__('PHP: mail()', 'backwpup') . '</option>';
echo '<option value="sendmail"' . selected('sendmail', BackWPup_Option::get($jobid, 'emailmethod'), false) . '>' . esc_html__('Sendmail', 'backwpup') . '</option>';
echo '<option value="smtp"' . selected('smtp', BackWPup_Option::get($jobid, 'emailmethod'), false) . '>' . esc_html__('SMTP', 'backwpup') . '</option>'; ?>
</select>
</td>
</tr>
<tr id="emailsendmail" <?php if (BackWPup_Option::get($jobid, 'emailmethod') !== 'sendmail') {
echo 'style="display:none;"';
} ?>>
<th scope="row"><label for="emailsendmail"><?php esc_html_e('Sendmail path', 'backwpup'); ?></label>
</th>
<td>
<input name="emailsendmail" id="emailsendmail" type="text"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailsendmail')); ?>"
class="regular-text code"/>
</td>
</tr>
<tr class="emailsmtp" <?php if (BackWPup_Option::get($jobid, 'emailmethod') !== 'smtp') {
echo 'style="display:none;"';
} ?>>
<th scope="row"><label for="emailhost"><?php esc_html_e('SMTP host name', 'backwpup'); ?></label></th>
<td>
<input name="emailhost" id="emailhost" type="text"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailhost')); ?>"
class="regular-text code"/>
<label for="emailhostport"><?php esc_html_e('Port:', 'backwpup'); ?><input name="emailhostport"
id="emailhostport"
type="number" step="0"
min="1" max="65000"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailhostport')); ?>"
class="small-text code"/></label>
</td>
</tr>
<tr class="emailsmtp" <?php if (BackWPup_Option::get($jobid, 'emailmethod') !== 'smtp') {
echo 'style="display:none;"';
} ?>>
<th scope="row"><label
for="emailsecure"><?php esc_html_e('SMTP secure connection', 'backwpup'); ?></label>
</th>
<td>
<select id="emailsecure" name="emailsecure">
<option
value=""<?php selected('', BackWPup_Option::get($jobid, 'emailsecure'), true); ?>><?php esc_html_e('none', 'backwpup'); ?></option>
<option
value="ssl"<?php selected('ssl', BackWPup_Option::get($jobid, 'emailsecure'), true); ?>><?php esc_html_e('SSL', 'backwpup'); ?></option>
<option
value="tls"<?php selected('tls', BackWPup_Option::get($jobid, 'emailsecure'), true); ?>><?php esc_html_e('TLS', 'backwpup'); ?></option>
</select>
</td>
</tr>
<tr class="emailsmtp" <?php if (BackWPup_Option::get($jobid, 'emailmethod') !== 'smtp') {
echo 'style="display:none;"';
} ?>>
<th scope="row"><label for="emailuser"><?php esc_html_e('SMTP username', 'backwpup'); ?></label></th>
<td>
<input name="emailuser" id="emailuser" type="text"
value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'emailuser')); ?>"
class="regular-text" autocomplete="off"/>
</td>
</tr>
<tr class="emailsmtp" <?php if (BackWPup_Option::get($jobid, 'emailmethod') != 'smtp') {
echo 'style="display:none;"';
} ?>>
<th scope="row"><label for="emailpass"><?php esc_html_e('SMTP password', 'backwpup'); ?></label></th>
<td>
<input name="emailpass" id="emailpass" type="password"
value="<?php echo esc_attr(BackWPup_Encryption::decrypt(BackWPup_Option::get($jobid, 'emailpass'))); ?>"
class="regular-text" autocomplete="off"/>
</td>
</tr>
</table>
<?php
}
public function edit_inline_js(): void
{
?>
<script type="text/javascript">
jQuery( document ).ready( function ( $ ) {
$( '#emailmethod' ).on('change', function () {
if ( 'smtp' == $( '#emailmethod' ).val() ) {
$( '.emailsmtp' ).show();
$( '#emailsendmail' ).hide();
} else if ( 'sendmail' == $( '#emailmethod' ).val() ) {
$( '.emailsmtp' ).hide();
$( '#emailsendmail' ).show();
} else {
$( '.emailsmtp' ).hide();
$( '#emailsendmail' ).hide();
}
} );
$( '#sendemailtest' ).live( 'click', function () {
$( '#sendemailtest' ).after( ' <img id="emailsendtext" src="<?php echo get_admin_url() . 'images/loading.gif'; ?>" width="16" height="16" />' );
var data = {
action : 'backwpup_dest_email',
emailaddress : $( 'input[name="emailaddress"]' ).val(),
emailsndemail : $( 'input[name="emailsndemail"]' ).val(),
emailmethod : $( '#emailmethod' ).val(),
emailsendmail : $( 'input[name="emailsendmail"]' ).val(),
emailsndemailname: $( 'input[name="emailsndemailname"]' ).val(),
emailhost : $( 'input[name="emailhost"]' ).val(),
emailhostport : $( 'input[name="emailhostport"]' ).val(),
emailsecure : $( '#emailsecure' ).val(),
emailuser : $( 'input[name="emailuser"]' ).val(),
emailpass : $( 'input[name="emailpass"]' ).val(),
_ajax_nonce : $( '#backwpupajaxnonce' ).val()
};
$.post( ajaxurl, data, function ( response ) {
$( '#emailsendtext' ).replaceWith( response );
} );
return false;
} );
} );
</script>
<?php
}
/**
* {@inheritdoc}
*
* @param int|array $jobid
* @return void
*
* @phpcs:disable WordPress.Security.NonceVerification.Missing, WordPress.Security.ValidatedSanitizedInput, WordPress.Security.ValidatedSanitizedInput.MissingUnslash
*/
public function edit_form_post_save( $jobid ): void {
$jobids = (array) $jobid;
foreach ( $jobids as $jobid ) {
BackWPup_Option::update( $jobid, 'emailaddress', isset( $_POST['emailaddress'] ) ? implode( ', ', $this->get_email_array( $_POST['emailaddress'] ) ) : '' ); // phpcs:ignore WordPress.Security
BackWPup_Option::update( $jobid, 'emailefilesize', ! empty( $_POST['emailefilesize'] ) ? absint( $_POST['emailefilesize'] ) : 0 ); // phpcs:ignore WordPress.Security
BackWPup_Option::update( $jobid, 'emailsndemail', sanitize_email( $_POST['emailsndemail'] ) ); // phpcs:ignore WordPress.Security
BackWPup_Option::update( $jobid, 'emailmethod', ( '' === $_POST['emailmethod'] || 'mail' === $_POST['emailmethod'] || 'sendmail' === $_POST['emailmethod'] || 'smtp' === $_POST['emailmethod'] ) ? $_POST['emailmethod'] : '' );
BackWPup_Option::update( $jobid, 'emailsendmail', sanitize_text_field( $_POST['emailsendmail'] ) );
BackWPup_Option::update( $jobid, 'emailsndemailname', sanitize_text_field( $_POST['emailsndemailname'] ) );
BackWPup_Option::update( $jobid, 'emailhost', sanitize_text_field( $_POST['emailhost'] ) );
BackWPup_Option::update( $jobid, 'emailhostport', absint( $_POST['emailhostport'] ) );
BackWPup_Option::update( $jobid, 'emailsecure', ( 'ssl' === $_POST['emailsecure'] || 'tls' === $_POST['emailsecure'] ) ? $_POST['emailsecure'] : '' );
BackWPup_Option::update( $jobid, 'emailuser', sanitize_text_field( $_POST['emailuser'] ) );
BackWPup_Option::update( $jobid, 'emailpass', BackWPup_Encryption::encrypt( $_POST['emailpass'] ) );
}
}
// phpcs:enable
public function job_run_archive(BackWPup_Job $job_object): bool
{
$job_object->substeps_todo = 1;
$job_object->log(sprintf(__('%d. Try to send backup with email …', 'backwpup'), $job_object->steps_data[$job_object->step_working]['STEP_TRY']), E_USER_NOTICE);
//check file Size
if (!empty($job_object->job['emailefilesize'])) {
if ($job_object->backup_filesize > $job_object->job['emailefilesize'] * 1024 * 1024) {
$job_object->log(__('Backup archive too big to be sent by email!', 'backwpup'), E_USER_ERROR);
$job_object->substeps_done = 1;
return true;
}
}
$job_object->log(sprintf(__('Sending email to %s…', 'backwpup'), $job_object->job['emailaddress']), E_USER_NOTICE);
//get mail settings
$emailmethod = 'mail';
$emailsendmail = '';
$emailhost = '';
$emailhostport = '';
$emailsecure = '';
$emailuser = '';
$emailpass = '';
if (empty($job_object->job['emailmethod'])) {
//do so if i'm the wp_mail to get the settings
$phpmailer = $this->getPhpMailer();
//only if PHPMailer really used
if (is_object($phpmailer)) {
do_action_ref_array('phpmailer_init', [&$phpmailer]);
//get settings from PHPMailer
$emailmethod = $phpmailer->Mailer;
$emailsendmail = $phpmailer->Sendmail;
$emailhost = $phpmailer->Host;
$emailhostport = $phpmailer->Port;
$emailsecure = $phpmailer->SMTPSecure;
$emailuser = $phpmailer->Username;
$emailpass = $phpmailer->Password;
}
} else {
$emailmethod = $job_object->job['emailmethod'];
$emailsendmail = $job_object->job['emailsendmail'];
$emailhost = $job_object->job['emailhost'];
$emailhostport = $job_object->job['emailhostport'];
$emailsecure = $job_object->job['emailsecure'];
$emailuser = $job_object->job['emailuser'];
$emailpass = BackWPup_Encryption::decrypt($job_object->job['emailpass']);
}
//Generate mail with Swift Mailer
if (!class_exists(\Swift::class, false)) {
require BackWPup::get_plugin_data('plugindir') . '/vendor/SwiftMailer/swift_required.php';
}
$mbEncoding = null;
if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
$mbEncoding = mb_internal_encoding();
mb_internal_encoding('ASCII');
}
$result = null;
try {
//Set Temp dir for mailing
Swift_Preferences::getInstance()->setTempDir(untrailingslashit(BackWPup::get_plugin_data('TEMP')))->setCacheType('disk');
// Create the Transport
if ($emailmethod == 'smtp') {
$transport = Swift_SmtpTransport::newInstance($emailhost, $emailhostport);
if ($emailuser) {
$transport->setUsername($emailuser);
$transport->setPassword($emailpass);
}
if ($emailsecure == 'ssl') {
$transport->setEncryption('ssl');
}
if ($emailsecure == 'tls') {
$transport->setEncryption('tls');
}
} elseif ($emailmethod == 'sendmail') {
// Verify command
if (preg_match('/^[a-zA-Z0-9-_.\/\\\'" ]+$/', $emailsendmail) === 0) {
$job_object->log('The sendmail command has invalid characters.', E_USER_ERROR);
}
$transport = Swift_SendmailTransport::newInstance($emailsendmail);
} else {
$job_object->need_free_memory($job_object->backup_filesize * 8);
$transport = Swift_MailTransport::newInstance();
}
// Create the Mailer using your created Transport
$emailer = Swift_Mailer::newInstance($transport);
// Create a message.
$message = Swift_Message::newInstance(
sprintf(
// translators: %1$s = date, %2$s = job name.
__( 'BackWPup archive from %1$s: %2$s', 'backwpup' ),
wp_date( 'd-M-Y H:i', $job_object->start_time ),
esc_attr( $job_object->job['name'] )
)
);
$message->setFrom( [ $job_object->job['emailsndemail'] => $job_object->job['emailsndemailname'] ] );
$message->setTo( $this->get_email_array( $job_object->job['emailaddress'] ) );
$message->setBody(
sprintf(
// translators: %s = backup archive.
__( 'Backup archive: %s', 'backwpup' ),
$job_object->backup_file
),
'text/plain',
strtolower( get_bloginfo( 'charset' ) )
);
$message->attach( Swift_Attachment::fromPath( $job_object->backup_folder . $job_object->backup_file, MimeTypeExtractor::fromFilePath( $job_object->backup_folder . $job_object->backup_file ) ) );
// Send the message.
$result = $emailer->send( $message );
} catch ( Exception $e ) {
$job_object->log( 'Swift Mailer: ' . $e->getMessage(), E_USER_ERROR );
}
if (isset($mbEncoding)) {
mb_internal_encoding($mbEncoding);
}
if (!isset($result) || !$result) {
$job_object->log(__('Error while sending email!', 'backwpup'), E_USER_ERROR);
return false;
}
$job_object->substeps_done = 1;
$job_object->log(__('Email sent.', 'backwpup'), E_USER_NOTICE);
return true;
}
public function can_run(array $job_settings): bool
{
if (empty($job_settings['emailaddress'])) {
return false;
}
return !($job_settings['backuptype'] != 'archive');
}
/**
* sends test mail.
*/
public function edit_ajax(): void
{
if (!current_user_can('backwpup_jobs_edit')) {
wp_die(-1);
}
check_ajax_referer('backwpup_ajax_nonce');
//get mail settings
$emailmethod = 'mail';
$emailsendmail = '';
$emailhost = '';
$emailhostport = '';
$emailsecure = '';
$emailuser = '';
$emailpass = '';
if (empty($_POST['emailmethod'])) {
//do so if i'm the wp_mail to get the settings
$phpmailer = $this->getPhpMailer();
//only if PHPMailer really used
if (is_object($phpmailer)) {
do_action_ref_array('phpmailer_init', [&$phpmailer]);
//get settings from PHPMailer
$emailmethod = $phpmailer->Mailer;
$emailsendmail = $phpmailer->Sendmail;
$emailhost = $phpmailer->Host;
$emailhostport = $phpmailer->Port;
$emailsecure = $phpmailer->SMTPSecure;
$emailuser = $phpmailer->Username;
$emailpass = $phpmailer->Password;
}
} else {
$emailmethod = sanitize_text_field($_POST['emailmethod']);
$emailsendmail = sanitize_email($_POST['emailsendmail']);
$emailhost = sanitize_text_field($_POST['emailhost']);
$emailhostport = absint($_POST['emailhostport']);
$emailsecure = sanitize_text_field($_POST['emailsecure']);
$emailuser = sanitize_text_field($_POST['emailuser']);
$emailpass = BackWPup_Encryption::decrypt($_POST['emailpass']);
}
//Generate mail with Swift Mailer
if (!class_exists(\Swift::class, false)) {
require BackWPup::get_plugin_data('plugindir') . '/vendor/SwiftMailer/swift_required.php';
}
$mbEncoding = null;
if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
$mbEncoding = mb_internal_encoding();
mb_internal_encoding('ASCII');
}
$result = null;
try {
// Create the Transport
if ($emailmethod == 'smtp') {
$transport = Swift_SmtpTransport::newInstance($emailhost, $emailhostport);
if ($emailuser) {
$transport->setUsername($emailuser);
$transport->setPassword($emailpass);
}
if ($emailsecure == 'ssl') {
$transport->setEncryption('ssl');
}
if ($emailsecure == 'tls') {
$transport->setEncryption('tls');
}
} elseif ($emailmethod == 'sendmail') {
$transport = Swift_SendmailTransport::newInstance($emailsendmail);
} else {
$transport = Swift_MailTransport::newInstance();
}
// Create the Mailer using your created Transport
$emailer = Swift_Mailer::newInstance($transport);
// Create a message
$message = Swift_Message::newInstance(__('BackWPup archive sending TEST Message', 'backwpup'));
$message->setFrom([$_POST['emailsndemail'] => sanitize_email($_POST['emailsndemailname'])]);
$message->setTo($this->get_email_array($_POST['emailaddress']));
$message->setBody(__('If this message reaches your inbox, sending backup archives via email should work for you.', 'backwpup'));
// Send the message
$result = $emailer->send($message);
} catch (Exception $e) {
echo '<span id="emailsendtext" class="bwu-message-error">Swift Mailer: ' . $e->getMessage() . '</span>';
}
if (isset($mbEncoding)) {
mb_internal_encoding($mbEncoding);
}
if (!isset($result) || !$result) {
echo '<span id="emailsendtext" class="bwu-message-error">' . esc_html__('Error while sending email!', 'backwpup') . '</span>';
} else {
echo '<span id="emailsendtext" class="bwu-message-success">' . esc_html__('Email sent.', 'backwpup') . '</span>';
}
exit();
}
/**
* Get an array of emails from comma-separated string.
*/
private function get_email_array(string $emailString): array
{
$emails = explode(',', sanitize_text_field($emailString));
foreach ($emails as $key => $email) {
$emails[$key] = sanitize_email(trim($email));
if (!is_email($emails[$key])) {
unset($emails[$key]);
}
}
return $emails;
}
/**
* Get PHPMailer object.
*
* @return PHPMailer
*/
private function getPhpMailer()
{
global $phpmailer, $wp_version;
if (!is_object($phpmailer) || !$phpmailer instanceof PHPMailer) {
if (version_compare($wp_version, '5.5', '>=')) {
require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
return new PHPMailer();
}
require_once ABSPATH . WPINC . '/class-phpmailer.php';
require_once ABSPATH . WPINC . '/class-smtp.php';
return new PHPMailer(true);
}
return $phpmailer;
}
}