--- application/helpers/remotecontrol/remotecontrol_handle.php.org	2020-02-13 16:39:43.137157937 +0100
+++ application/helpers/remotecontrol/remotecontrol_handle.php	2020-05-26 17:19:04.892983689 +0200
@@ -255,6 +255,146 @@
     }
 
     /**
+     * RPC Routine to export a survey archive (LSA).
+     *
+     * @access public
+     * @param string $sSessionKey Auth credentials
+     * @param int $iSurveyID_org Id of the survey
+     * @return string|array in case of success : Base64 encoded string of the .lsa file. On failure array with error information.
+     * */
+    public function export_survey_archive ($sSessionKey, $iSurveyID_org)
+    {
+        $iSurveyID = (int) $iSurveyID_org;
+        if (!$this->_checkSessionKey($sSessionKey)) {
+            return array('status' => 'Invalid session key');
+        }
+        $aData['bFailed'] = false; // Put a var for continue
+        if (!$iSurveyID) {
+            $aData['sErrorMessage'] = "No survey ID has been provided. Cannot export survey";
+            $aData['bFailed'] = true;
+        } elseif (!Survey::model()->findByPk($iSurveyID)) {
+            $aData['sErrorMessage'] = "Invalid survey ID";
+            $aData['bFailed'] = true;
+        } elseif (!Permission::model()->hasSurveyPermission($iSurveyID, 'surveycontent', 'export') && !Permission::model()->hasSurveyPermission($iSurveyID, 'surveycontent', 'export')) {
+            $aData['sErrorMessage'] = "You don't have sufficient permissions.";
+            $aData['bFailed'] = true;
+        } else {
+            $aExcludes = array();
+            $aExcludes['dates'] = true;
+            $btranslinksfields = true;
+            Yii::app()->loadHelper('export');
+
+            /* START CODE DUPLICATION
+             * taken from application/controllers/admin/export.php:_exportarchive
+             * This is ugly.
+             * Sorry, I am just a sysadmin, no PHP dev
+             * The mentioned function would somehow need to be public to actually use it
+             * However, I barely understand OO programming
+             *
+             * I also added addToZip to export_helper.php and made it non-private
+             * to be able to use it here. Ugly as well.
+             *
+             * Still, it works, so the concept should be clear.
+             */
+            $survey = Survey::model()->findByPk($iSurveyID);
+
+            // $aSurveyInfo = getSurveyInfo($iSurveyID); // unused, even in export.php
+
+            $sTempDir = Yii::app()->getConfig("tempdir");
+
+            $aZIPFileName = $sTempDir.DIRECTORY_SEPARATOR.randomChars(30);
+            $sLSSFileName = $sTempDir.DIRECTORY_SEPARATOR.randomChars(30);
+            $sLSRFileName = $sTempDir.DIRECTORY_SEPARATOR.randomChars(30);
+            $sLSTFileName = $sTempDir.DIRECTORY_SEPARATOR.randomChars(30);
+            $sLSIFileName = $sTempDir.DIRECTORY_SEPARATOR.randomChars(30);
+
+            Yii::import('application.libraries.admin.pclzip', true);
+            $zip = new PclZip($aZIPFileName);
+
+            file_put_contents($sLSSFileName, surveyGetXMLData($iSurveyID));
+
+            addToZip($zip, $sLSSFileName, 'survey_'.$iSurveyID.'.lss');
+
+            unlink($sLSSFileName);
+
+            if ($survey->isActive) {
+                getXMLDataSingleTable($iSurveyID, 'survey_'.$iSurveyID, 'Responses', 'responses', $sLSRFileName, false);
+                addToZip($zip, $sLSRFileName, 'survey_'.$iSurveyID.'_responses.lsr');
+                unlink($sLSRFileName); 
+            }   
+
+            if ($survey->hasTokensTable) {
+                getXMLDataSingleTable($iSurveyID, 'tokens_'.$iSurveyID, 'Tokens', 'tokens', $sLSTFileName);
+                addToZip($zip, $sLSTFileName, 'survey_'.$iSurveyID.'_tokens.lst');
+                unlink($sLSTFileName); 
+            }   
+
+            if (isset($survey->hasTimingsTable) && $survey->hasTimingsTable == 'Y') {
+                getXMLDataSingleTable($iSurveyID, 'survey_'.$iSurveyID.'_timings', 'Timings', 'timings', $sLSIFileName);
+                addToZip($zip, $sLSIFileName, 'survey_'.$iSurveyID.'_timings.lsi');
+                unlink($sLSIFileName); 
+            }   
+
+            if (is_file($aZIPFileName)) {
+            /* END CODE DUPLICATION */
+
+                    $sResult = file_get_contents($aZIPFileName);
+					unlink($aZIPFileName);
+                } else {
+                    $aData['bFailed'] = true;
+                    $aData['sErrorMessage'] = 'Error creating lsa archive';
+                }
+        }
+        if ($aData['bFailed']) {
+            return array('status' => 'Export failed', 'error'=> $aData['sErrorMessage']);
+        } else {
+            return base64_encode($sResult);
+        }
+    }
+    /**
+     * RPC Routine to export a survey structure (LSS).
+     *
+     * @access public
+     * @param string $sSessionKey Auth credentials
+     * @param int $iSurveyID_org Id of the survey
+     * @return string|array in case of success : Base64 encoded string of the .lss file. On failure array with error information.
+     * */
+    public function export_survey_structure ($sSessionKey, $iSurveyID_org)
+    {
+        $iSurveyID = (int) $iSurveyID_org;
+        if (!$this->_checkSessionKey($sSessionKey)) {
+            return array('status' => 'Invalid session key');
+        }
+        $aData['bFailed'] = false; // Put a var for continue
+        if (!$iSurveyID) {
+            $aData['sErrorMessage'] = "No survey ID has been provided. Cannot export survey";
+            $aData['bFailed'] = true;
+        } elseif (!Survey::model()->findByPk($iSurveyID)) {
+            $aData['sErrorMessage'] = "Invalid survey ID";
+            $aData['bFailed'] = true;
+        } elseif (!Permission::model()->hasSurveyPermission($iSurveyID, 'surveycontent', 'export') && !Permission::model()->hasSurveyPermission($iSurveyID, 'surveycontent', 'export')) {
+            $aData['sErrorMessage'] = "You don't have sufficient permissions.";
+            $aData['bFailed'] = true;
+        } else {
+            $aExcludes = array();
+            $aExcludes['dates'] = true;
+            $btranslinksfields = true;
+            Yii::app()->loadHelper('export');
+            $exportsurveystructuredata = surveyGetXMLData($iSurveyID, $aExcludes);
+            if ($exportsurveystructuredata) {
+                $sResult = $exportsurveystructuredata;
+            } else {
+                $aData['bFailed'] = true;
+            }
+        }
+        if ($aData['bFailed']) {
+            return array('status' => 'Export failed', 'error'=> $aData['sErrorMessage']);
+        } else {
+            return base64_encode($sResult);
+        }
+    }
+
+    /**
      * Copy survey (RPC function)
      *
      * @access public
--- application/helpers/export_helper.php.org	2020-05-26 17:22:50.808991768 +0200
+++ application/helpers/export_helper.php	2020-05-26 17:07:19.924958477 +0200
@@ -13,6 +13,26 @@
 */
 
 /**
+ * CODE DUPLICATION! This is also part of export.php
+ * Sorry I can't solve this any better...
+ * @param PclZip $zip
+ * @param string $name
+ * @param string $full_name
+ */
+
+function addToZip($zip, $name, $full_name)
+{
+    $zip->add(
+    array(
+    array(
+    PCLZIP_ATT_FILE_NAME => $name,
+    PCLZIP_ATT_FILE_NEW_FULL_NAME => $full_name
+    )
+    )
+    );
+}
+
+/**
 * Strips html tags and replaces new lines
 *
 * @param $string