141 lines
4.8 KiB
PHP
141 lines
4.8 KiB
PHP
<?php
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/**
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* @file
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* Functions to handle the email backup destination.
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*/
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/**
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* A destination for emailing database backups.
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*
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* @ingroup backup_migrate_destinations
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*/
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class backup_migrate_destination_email extends backup_migrate_destination {
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var $supported_ops = array('scheduled backup', 'manual backup', 'remote backup', 'configure');
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/**
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* Save to (ie. email the file) to the email destination.
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*/
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function save_file($file, $settings) {
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$size = filesize($file->filepath());
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$max = variable_get('backup_migrate_max_email_size', 20971520);
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if ($size > $max) {
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_backup_migrate_message('Could not email the file @file because it is @size and Backup and Migrate only supports emailing files smaller than @max.', array('@file' => $file->filename(), '@size' => format_size($size), '@max' => format_size($max)), 'error');
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return FALSE;
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}
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$attachment = new stdClass();
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$attachment->filename = $file->filename();
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$attachment->path = $file->filepath();
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_backup_migrate_destination_email_mail_backup($attachment, $this->get_location());
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return $file;
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}
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/**
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* Get the form for the settings for this filter.
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*/
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function edit_form() {
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$form = parent::edit_form();
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$form['location'] = array(
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"#type" => "textfield",
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"#title" => t("Email Address"),
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"#default_value" => $this->get_location(),
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"#required" => TRUE,
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"#description" => t('Enter the email address to send the backup files to. Make sure the email sever can handle large file attachments'),
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);
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return $form;
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}
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/**
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* Validate the configuration form. Make sure the email address is valid.
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*/
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function settings_form_validate($values) {
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if (!valid_email_address($values['location'])) {
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form_set_error('[location]', t('The e-mail address %mail is not valid.', array('%mail' => $form_state['values']['location'])));
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}
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}
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}
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/**
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* @function
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* Temporary mail handler class.
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*
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* Defines a mail class to send a message with an attachment. Eventually Drupal
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* core should provide this functionality, at which time this code will be
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* removed.
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*
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* More info on sending email at <http://php.net/function.mail>.
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* This function taken from dba.module.
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*
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* @param $attachment
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* An object which contains two variables "path" the path to the file and
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* filename and "filename" which is just the filename.
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*/
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function _backup_migrate_destination_email_mail_backup($attachment, $to) {
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// Send mail
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$attach = fread(fopen($attachment->path, "r"), filesize($attachment->path));
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$mail = new mime_mail();
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$mail->from = variable_get('site_mail', ini_get('sendmail_from'));
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$mail->headers = 'Errors-To: [EMAIL='. $mail->from .']'. $mail->from .'[/EMAIL]';
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$mail->to = $to;
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$mail->subject = t('Database backup from !site: !file', array('!site' => variable_get('site_name', 'drupal'), '!file' => $attachment->filename));
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$mail->body = t('Database backup attached.') ."\n\n";
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$mail->add_attachment("$attach", $attachment->filename, "Content-Transfer-Encoding: base64 /9j/4AAQSkZJRgABAgEASABIAAD/7QT+UGhvdG9zaG", NULL, TRUE);
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$mail->send();
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}
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class mime_mail {
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var $parts;
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var $to;
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var $from;
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var $headers;
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var $subject;
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var $body;
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function __construct() {
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$this->parts = array();
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$this->to = "";
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$this->from = "";
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$this->headers = "";
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$this->subject = "";
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$this->body = "";
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}
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function add_attachment($message, $name = "", $ctype = "application/octet-stream", $encode = NULL, $attach = FALSE) {
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$this->parts[] = array(
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"ctype" => $ctype,
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"message" => $message,
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"encode" => $encode,
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"name" => $name,
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"attach" => $attach,
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);
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}
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function build_message($part) {
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$message = $part["message"];
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$message = chunk_split(base64_encode($message));
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$encoding = "base64";
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$disposition = $part['attach'] ? "Content-Disposition: attachment; filename=$part[name]\n" : '';
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return "Content-Type: ". $part["ctype"] . ($part["name"] ? "; name = \"". $part["name"] ."\"" : "") ."\nContent-Transfer-Encoding: $encoding\n$disposition\n$message\n";
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}
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function build_multipart() {
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$boundary = "b". md5(uniqid(time()));
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$multipart = "Content-Type: multipart/mixed; boundary = $boundary\n\nThis is a MIME encoded message.\n\n--$boundary";
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for ($i = sizeof($this->parts) - 1; $i >= 0; $i--) {
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$multipart .= "\n". $this->build_message($this->parts[$i]) ."--$boundary";
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}
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return $multipart .= "--\n";
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}
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function send() {
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$mime = "";
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if (!empty($this->from)) $mime .= "From: ". $this->from ."\n";
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if (!empty($this->headers)) $mime .= $this->headers ."\n";
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if (!empty($this->body)) $this->add_attachment($this->body, "", "text/plain");
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$mime .= "MIME-Version: 1.0\n". $this->build_multipart();
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mail(trim($this->to), $this->subject, "", $mime);
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}
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}
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