Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64
//home/puskom/mastur/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;

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($jobid, 'emailhost')); ?>"
					       class="regular-text code"/>&nbsp;
					<label for="emailhostport"><?php esc_html_e('Port:', 'backwpup'); ?><input name="emailhostport"
					                                                                             id="emailhostport"
					                                                                             type="number" step="0"
					                                                                             min="1" max="65000"
					                                                                             value="<?php echo esc_attr(BackWPup_Option::get($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' ).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( '&nbsp;<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
    }

    public function edit_form_post_save(int $jobid): void
    {
        BackWPup_Option::update($jobid, 'emailaddress', isset($_POST['emailaddress']) ? implode(', ', $this->get_email_array($_POST['emailaddress'])) : '');
        BackWPup_Option::update($jobid, 'emailefilesize', !empty($_POST['emailefilesize']) ? absint($_POST['emailefilesize']) : 0);
        BackWPup_Option::update($jobid, 'emailsndemail', sanitize_email($_POST['emailsndemail']));
        BackWPup_Option::update($jobid, 'emailmethod', ($_POST['emailmethod'] === '' || $_POST['emailmethod'] === 'mail' || $_POST['emailmethod'] === 'sendmail' || $_POST['emailmethod'] === 'smtp') ? $_POST['emailmethod'] : '');
        BackWPup_Option::update($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', ($_POST['emailsecure'] === 'ssl' || $_POST['emailsecure'] === 'tls') ? $_POST['emailsecure'] : '');
        BackWPup_Option::update($jobid, 'emailuser', sanitize_text_field($_POST['emailuser']));
        BackWPup_Option::update($jobid, 'emailpass', BackWPup_Encryption::encrypt($_POST['emailpass']));
    }

    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&#160;&hellip;', '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&hellip;', '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') {
                $transport = Swift_SendmailTransport::newInstance($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
            $message = Swift_Message::newInstance(sprintf(__('BackWPup archive from %1$s: %2$s', 'backwpup'), date_i18n('d-M-Y H:i', $job_object->start_time, true), esc_attr($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(__('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
    {
        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;
    }

    /**
     * @return PHPMailer|\PHPMailer\PHPMailer\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\PHPMailer\PHPMailer();
            }

            require_once ABSPATH . WPINC . '/class-phpmailer.php';

            require_once ABSPATH . WPINC . '/class-smtp.php';

            return new PHPMailer(true);
        }

        return $phpmailer;
    }
}