nicholas@2224: <?php
nicholas@3123: include_once("config.php");
nicholas@2634: function findNodeByAttribute($nodeList, $attributeName, $attributeValue) {
nicholas@2637:     if (empty($attributeName) || empty($attributeValue)) {
nicholas@2634:         die("Error: Empty findNodeByAttribute");
nicholas@2634:     }
nicholas@2638:     if (empty($nodeList)) {
nicholas@2638:         return 0;
nicholas@2638:     }
nicholas@2634:     foreach($nodeList as $item) {
nicholas@2634:         if ($item->hasAttribute($attributeName)) {
nicholas@2634:             if ($item->getAttribute($attributeValue) == $attributeValue) {
nicholas@2634:                 return $item;
nicholas@2634:             }
nicholas@2634:         }
nicholas@2634:     }
nicholas@2634:     return 0;
nicholas@2634: }
nicholas@2634: 
nicholas@2634: // Set the response headers
nicholas@2634: header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
nicholas@2634: header("Pragma: no-cache");
nicholas@2634: header('Access-Control-Allow-Origin: *');
nicholas@2634: header("Content-type: text/xml");
nicholas@2635: //error_reporting(0);
nicholas@2634: 
nicholas@2634: // Load up the parameters
nicholas@2634: $saveFilenamePrefix = '';
nicholas@2634: if (isset($_GET['saveFilenamePrefix'])) {
nicholas@2634:     $saveFilenamePrefix = $_GET['saveFilenamePrefix'].'-';
nicholas@2754: } else {
nicholas@2755:     $saveFilenamePrefix = "save-";
nicholas@2634: }
nicholas@2634: $postText = file_get_contents('php://input');
nicholas@2634: $file_key = $_GET['key'];
n@2997: 
n@2997: $update = false;
n@2997: if (isset($_GET["update"])) {
n@2997:     $update = $_GET["update"] == "update";
n@2997: }
n@2997: 
nicholas@3120: $saveLocation = getSaveLocation();
nicholas@3120: 
n@2997: if ($update) {
nicholas@3120:     $filename = $saveLocation.'update-'.$saveFilenamePrefix.$file_key.".xml";
n@2997: } else {
nicholas@3120:     $filename = $saveLocation.$saveFilenamePrefix.$file_key.".xml";
n@2997: }
nicholas@2634: 
nicholas@2634: if (!file_exists($filename)) {
nicholas@2634:     die('<response state="error"><message>Could not find save</message></response>');
nicholas@2634: }
nicholas@2634: 
nicholas@2634: // Open the save
nicholas@2634: $saved_doc = new DOMDocument;
nicholas@2634: $saved_doc->preserveWhiteSpace = false;
nicholas@2634: $saved_doc->formatOutput = true;
nicholas@2634: $saved_doc->loadXML(file_get_contents($filename, FILE_TEXT));
nicholas@2634: $saved_root = $saved_doc->documentElement;
nicholas@2634: 
nicholas@2634: // Construct the XML document into a new tree
nicholas@2634: $doc = new DOMDocument;
nicholas@2634: $doc->loadXML($postText);
nicholas@2634: $docRoot = $doc->documentElement;
nicholas@2634: 
nicholas@2634: // Add the relavent nodes:
nicholas@2634: // <datetime>
nicholas@2634: $n1 = $docRoot->getElementsByTagName("datetime");
nicholas@2634: $n2 = $saved_root->getElementsByTagName("datetime");
nicholas@2636: if ($n1->length > 0 && $n2->length == 0) {
nicholas@2634:     $n1 = $doc->importNode($n1->item(0), true);
nicholas@2634:     $docRoot->appendChild($n1);
nicholas@2634: }
nicholas@2634: 
nicholas@2634: //<navigator>
nicholas@2634: $n1 = $docRoot->getElementsByTagName("navigator");
nicholas@2634: $n2 = $saved_root->getElementsByTagName("navigator");
nicholas@2636: if ($n1->length > 0 && $n2->length == 0) {
nicholas@2634:     $n1 = $doc->importNode($n1->item(0), true);
nicholas@2634:     $docRoot->appendChild($n1);
nicholas@2634: }
nicholas@2634: 
nicholas@2634: //<survey location="pre">
nicholas@2634: $n1 = $docRoot->getElementsByTagName("survey");
nicholas@2634: $n2 = $saved_root->getElementsByTagName("survey");
nicholas@2634: if ($n1->length > 0) {
nicholas@2634:     // Check if in save
nicholas@2634:     if ($n2->length == 0) {
nicholas@2634:         $n2 = 0;
nicholas@2634:     }
nicholas@2634:     $sn1 = findNodeByAttribute($n1, "location", "pre");
nicholas@2634:     $sn2 = findNodeByAttribute($n2, "location", "pre");
nicholas@2634:     if ($sn1 != 0) {
n@2966:         if ($sn2 != 0) {
nicholas@2634:             $saved_root->removeChild($sn2);
nicholas@2634:             $sn2 = 0;
nicholas@2634:         }
nicholas@2634:         if ($sn2 == 0) {
nicholas@2634:             $sn1 = $doc->importNode($sn1->item(0), true);
nicholas@2634:             $docRoot->appendChild($sn1);
nicholas@2634:         }
nicholas@2634:     }
nicholas@2634:     
nicholas@2634:     $sn1 = findNodeByAttribute($n1, "location", "post");
nicholas@2634:     $sn2 = findNodeByAttribute($n2, "location", "post");
nicholas@2634:     if ($sn1 != 0) {
n@2966:         if ($sn2 != 0) {
nicholas@2634:             $saved_root->removeChild($sn2);
nicholas@2634:             $sn2 = 0;
nicholas@2634:         }
nicholas@2634:         if ($sn2 == 0) {
nicholas@2634:             $sn1 = $doc->importNode($sn1->item(0), true);
nicholas@2634:             $docRoot->appendChild($sn1);
nicholas@2634:         }
nicholas@2634:     }
nicholas@2634: }
nicholas@2634: 
nicholas@2634: //<page ref="">
nicholas@2634: $n1 = $docRoot->getElementsByTagName("page");
nicholas@2634: $n2 = $saved_root->getElementsByTagName("page");
nicholas@2634: if ($n1->length > 0) {
nicholas@2634:     if ($n2->length == 0) {
nicholas@2634:         $n2 = 0;
nicholas@2634:     }
nicholas@2634:     foreach($n1 as $page) {
nicholas@2634:         $ref = $page->getAttribute("ref");
nicholas@2639:         if (!empty($ref)) {
nicholas@2639:             $pn2 = findNodeByAttribute($n2, "ref", $ref);
n@2966:             if ($pn2 != 0) {
nicholas@2639:                 $saved_root->removeChild($pn2);
nicholas@2639:                 $pn2 = 0;
nicholas@2639:             }
nicholas@2639:             if ($pn2 == 0) {
nicholas@2640:                 $pn1 = $doc->importNode($page, true);
nicholas@2639:                 $docRoot->appendChild($pn1);
nicholas@2639:             }
nicholas@2634:         }
nicholas@2634:     }
nicholas@2634: }
nicholas@2634: 
nicholas@2634: // Iterate through new doc
nicholas@2641: $wbytes = $doc->save($filename);
nicholas@2634: 
nicholas@2634: // Return XML confirmation data
nicholas@2634: $xml = '<response state="OK"><message>OK</message><file bytes="'.$wbytes.'">"'.$filename.'"</file></response>';
nicholas@2634: echo $xml;
n@2997: 
n@2997: if (!$update) {
nicholas@3120:     unlink($saveLocation.'update-'.$saveFilenamePrefix.$file_key.".xml");
n@2997: }
nicholas@2538: ?>