added bulk download feature

webui/model/message/restore.php

@@ -0,0 +1,45 @@
+<?php
+
+class ModelMessageRestore extends Model {
+
+
+   public function download_files_as_zip($idlist = array()) {
+
+      $zip = new ZipArchive();
+
+      $randomid = generate_random_string(16);
+
+      $filename = DIR_TMP . "/" . $randomid;
+
+      if($zip->open($filename, ZIPARCHIVE::CREATE) != true) { exit("cannot open <$filename>\n"); }
+
+      foreach($idlist as $id) {
+         $rawemail = $this->model_search_message->get_raw_message($id);
+         $zip->addFromString($id . ".eml",  $rawemail);
+
+         AUDIT(ACTION_DOWNLOAD_MESSAGE, '', '', $id, '');
+      }
+
+
+      $zip->close();
+
+
+      header("Cache-Control: public, must-revalidate");
+      header("Pragma: no-cache");
+      header("Content-Type: application/zip");
+      header("Expires: 0");
+      header("Content-Length: " . filesize($filename));
+      header("Content-Disposition: attachment; filename=archive-$randomid.zip");
+      header("Content-Transfer-Encoding: binary\n");
+
+      readfile($filename);
+
+      unlink($filename);
+
+   }
+
+
+}
+
+
+?>