Add gpx import feature (closes #14)

css/main.css

@@ -106,7 +106,7 @@ select {
   cursor: pointer;
 }
 
-#user, #track, #summary, #export, #other, #units {
+#user, #track, #summary, #export, #import, #other, #units {
   padding-bottom: 10px;
 }
 #summary span {

index.php

@@ -189,12 +189,21 @@
         </div>
 
         <div id="export">
-          <u><?= $lang["download"] ?></u><br>
-          <a class="menulink" href="javascript:void(0);" onclick="load('kml', userid, trackid);">kml</a>
-          <a class="menulink" href="javascript:void(0);" onclick="load('gpx', userid, trackid);">gpx</a>
+          <u><?= $lang["export"] ?></u><br>
+          <a class="menulink" href="javascript:void(0);" onclick="exportFile('kml', userid, trackid);">kml</a>
+          <a class="menulink" href="javascript:void(0);" onclick="exportFile('gpx', userid, trackid);">gpx</a>
         </div>
 
         <?php if ($user->isValid): ?>
+          <div id="import">
+            <u><?= $lang["import"] ?></u><br>
+            <form id="importForm" enctype="multipart/form-data" method="POST">
+              <input type="hidden" name="MAX_FILE_SIZE" value="1048576" />
+              <input type="file" id="inputFile" name="gpx" style="display:none" onchange="importFile(this)" />
+            </form>
+            <a class="menulink" href="javascript:void(0);" onclick="document.getElementById('inputFile').click();">gpx</a>
+          </div>
+
           <div id="admin_menu">
             <u><?= $lang["adminmenu"] ?></u><br>
             <?php if ($user->isAdmin): ?>

js/main.js

@@ -217,11 +217,42 @@ function getPopupHtml(p, i, count) {
   return popup;
 }
 
-function load(type, userid, trackid) {
-  var url = 'utils/download.php?type=' + type + '&userid=' + userid + '&trackid=' + trackid;
+function exportFile(type, userid, trackid) {
+  var url = 'utils/export.php?type=' + type + '&userid=' + userid + '&trackid=' + trackid;
   window.location.assign(url);
 }
 
+function importFile(input){
+  var xhr = getXHR();
+  xhr.onreadystatechange = function() {
+    if (xhr.readyState == 4 && xhr.status == 200) {
+      var xml = xhr.responseXML;
+      var message = "";
+      if (xml) {
+        var root = xml.getElementsByTagName('root');
+        if (root.length && getNode(root[0], 'error') == 0) {
+          trackId = getNode(root[0], 'trackid');
+          getTracks(userid);
+          loadTrack(userid, trackId, 1);
+          return;
+        }
+        errorMsg = getNode(root[0], 'message');
+        if (errorMsg) { message = errorMsg; }
+      }
+      alert(lang['actionfailure'] + '\n' + message);
+      xhr = null;
+    }
+  }
+  xhr.upload.onprogress = function(e) {
+    console.log(e.loaded, e.total)
+  }
+  xhr.upload.onload = function(e) {
+    console.log('file upload')
+  }
+  xhr.open("POST", "utils/import.php", true);
+  xhr.send(new FormData(input.parentElement));
+}
+
 function updateSummary(l, d, s) {
   var t = document.getElementById('summary');
   if (latest == 0) {

lang/de.php

@@ -25,7 +25,7 @@ $lang["track"] = "Route";
 $lang["latest"] = "letzte Position";
 $lang["autoreload"] = "Autoneuladen";
 $lang["reload"] = "Neuladen";
-$lang["download"] = "Download Daten";
+$lang["export"] = "Download Daten";
 $lang["chart"] = "Höhentabelle";
 $lang["close"] = "Schließen";
 $lang["time"] = "Zeit";

lang/en.php

@@ -54,7 +54,7 @@ $lang["track"] = "Track";
 $lang["latest"] = "latest position";
 $lang["autoreload"] = "autoreload";
 $lang["reload"] = "Reload now";
-$lang["download"] = "Download data";
+$lang["export"] = "Export track";
 $lang["chart"] = "Altitudes chart";
 $lang["close"] = "close";
 $lang["time"] = "Time";
@@ -114,5 +114,7 @@ $lang["passrules"][3] = "It should contain at least one lower case letter, one u
 $lang["owntrackswarn"] = "Your can only edit your own tracks";
 $lang["gmauthfailure"] = "There may be problem with Google Maps API key on this page";
 $lang["gmapilink"] = "You may find more information about API keys on <a target=\"_blank\" href=\"https://developers.google.com/maps/documentation/javascript/get-api-key\">this Google webpage</a>";
-
+$lang["import"] = "Import track";
+$lang["iparsefailure"] = "Parsing failed";
+$lang["idatafailure"] = "No track data in imported file";
 ?>

lang/es.php

@@ -25,7 +25,7 @@ $lang["track"] = "Rastro";
 $lang["latest"] = "última posición";
 $lang["autoreload"] = "autorecarga";
 $lang["reload"] = "Recargar ahora";
-$lang["download"] = "Descargar datos";
+$lang["export"] = "Descargar datos";
 $lang["chart"] = "Gráfico de altitudes";
 $lang["close"] = "cerrar";
 $lang["time"] = "Hora";

lang/fr.php

@@ -25,7 +25,7 @@ $lang["track"] = "Piste";
 $lang["latest"] = "dernière position";
 $lang["autoreload"] = "rechargement automatique";
 $lang["reload"] = "Recharger maintenant";
-$lang["download"] = "Télécharger les données";
+$lang["export"] = "Télécharger les données";
 $lang["chart"] = "Courbes d'altitudes";
 $lang["close"] = "fermer";
 $lang["time"] = "Temps";

lang/hu.php

@@ -25,7 +25,7 @@ $lang["track"] = "Útvonal";
 $lang["latest"] = "Utolsó rögzített pont";
 $lang["autoreload"] = "Automatikus frissítés";
 $lang["reload"] = "Frissítés most";
-$lang["download"] = "Adatok letöltése";
+$lang["export"] = "Adatok letöltése";
 $lang["chart"] = "Magasság diagramm";
 $lang["close"] = "Bezár";
 $lang["time"] = "Rögzítés ideje";

lang/it.php

@@ -54,7 +54,7 @@ $lang["track"] = "Traccia";
 $lang["latest"] = "ultima posizione";
 $lang["autoreload"] = "auto-ricarica";
 $lang["reload"] = "Ricarica ora";
-$lang["download"] = "Scarica dati";
+$lang["export"] = "Scarica dati";
 $lang["chart"] = "Grafico altitudine";
 $lang["close"] = "chiudi";
 $lang["time"] = "Ora";

lang/pl.php

@@ -49,7 +49,7 @@ $lang["track"] = "Trasa";
 $lang["latest"] = "ostatnia pozycja";
 $lang["autoreload"] = "odświeżaj";
 $lang["reload"] = "Odśwież teraz";
-$lang["download"] = "Pobierz dane";
+$lang["export"] = "Eksportuj trasę";
 $lang["chart"] = "Wykres przewyższeń";
 $lang["close"] = "zamknij";
 $lang["time"] = "Czas";
@@ -109,5 +109,8 @@ $lang["passrules"][3] = "Powinno ono zawierać przynajmniej jedną małą, jedn
 $lang["owntrackswarn"] = "Możesz edytować tylko swoje własne trasy";
 $lang["gmauthfailure"] = "Prawdopodobnie na tej stronie występuje problem z kluczem API Google Maps";
 $lang["gmapilink"] = "Więcej informacji o kluczach API znajdziesz <a target=\"_blank\" href=\"https://developers.google.com/maps/documentation/javascript/get-api-key\">pod tym linkiem</a>";
+$lang["import"] = "Importuj trasę";
+$lang["iparsefailure"] = "Błąd parsowania pliku";
+$lang["idatafailure"] = "Brak trasy w importowanym pliku";
 
 ?>

utils/export.php

@@ -182,7 +182,7 @@ if ($trackId && $userId) {
       $xml->writeAttribute("version", "1.1");
       $xml->startElement("metadata");
         $xml->writeElement("name", $positionsArr[0]->trackName);
-        $xml->writeElement("time", str_replace(" ", "T", $positionsArr[0]->time));
+        $xml->writeElement("time", gmdate("Y-m-d\TH:i:s\Z", strtotime($positionsArr[0]->time)));
       $xml->endElement();
       $xml->startElement("trk");
         $xml->writeElement("name", $positionsArr[0]->trackName);
@@ -200,7 +200,7 @@ if ($trackId && $userId) {
             $xml->writeAttribute("lat", $position->latitude);
             $xml->writeAttribute("lon", $position->longitude);
             if (!is_null($position->altitude)) { $xml->writeElement("ele", $position->altitude); }
-            $xml->writeElement("time", str_replace(" ", "T", $position->time));
+            $xml->writeElement("time", gmdate("Y-m-d\TH:i:s\Z", strtotime($position->time)));
             $xml->writeElement("name", ++$i);
             $xml->startElement("desc");
               $description =

utils/import.php

@@ -0,0 +1,109 @@
+<?php
+/* μlogger
+ *
+ * Copyright(C) 2017 Bartek Fabiszewski (www.fabiszewski.net)
+ *
+ * This is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+require_once(dirname(__DIR__) . "/auth.php"); // sets $user
+require_once(ROOT_DIR . "/helpers/track.php");
+require_once(ROOT_DIR . "/helpers/position.php");
+
+/**
+ * Exit with xml response
+ * @param boolean $isError Error if true
+ * @param string $errorMessage Optional error message
+ */
+function exitWithStatus($isError, $errorMessage = NULL, $trackId = NULL) {
+  header("Content-type: text/xml");
+  $xml = new XMLWriter();
+  $xml->openURI("php://output");
+  $xml->startDocument("1.0");
+  $xml->setIndent(true);
+  $xml->startElement('root');
+    $xml->writeElement("error", (int) $isError);
+  if ($isError) {
+    $xml->writeElement("message", $errorMessage);
+  } else {
+    $xml->writeElement("trackid", $trackId);
+  }
+  $xml->endElement();
+  $xml->endDocument();
+  $xml->flush();
+  exit;
+}
+
+if (!$user->isValid) {
+  exitWithStatus(true, $lang["servererror"]);
+}
+
+$sizeMax = 10 * 1024 * 1024; //FIXME: set to php limits
+$gpxFile = NULL;
+$gpxUpload = $_FILES["gpx"];
+if ($gpxUpload["error"] == UPLOAD_ERR_OK && $gpxUpload["size"] < $sizeMax) {
+  $gpxFile = $gpxUpload["tmp_name"];
+  $gpxName = basename($gpxUpload["name"]);
+}
+
+$gpx = false;
+libxml_use_internal_errors(true);
+if ($gpxFile && file_exists($gpxFile)) {
+  $gpx = simplexml_load_file($gpxFile);
+}
+
+if ($gpx === false) {
+  $message = $lang["iparsefailure"];
+  $parserMessages = [];
+  foreach(libxml_get_errors() as $parseError) {
+    $parserMessages[] = $parseError->message;
+  }
+  $parserMessage = implode(", ", $parserMessages);
+  if (!empty($parserMessage)) {
+    $message .= ": $parserMessage";
+  }
+  if ($gpxUpload["error"] != UPLOAD_ERR_OK) {
+    $message .= " (" . $gpxUpload["error"] . ")";
+  }
+  exitWithStatus(true, $message);
+}
+else if (empty($gpx->trk)) {
+  exitWithStatus(true, $lang["idatafailure"]);
+}
+
+$trackName = empty($gpx->trk->name) ? $gpxName : $gpx->trk->name->__toString();
+$metaName = empty($gpx->metadata->name) ? NULL : $gpx->metadata->name->__toString();
+$track = new uTrack();
+$trackId = $track->add($user->id, $trackName, $metaName);
+if ($trackId === false) {
+  exitWithStatus(true, $lang["servererror"]);
+  break;
+}
+
+$position = new uPosition();
+foreach($gpx->trk->trkseg as $segment) {
+  foreach($segment->trkpt as $point) {
+    $ret = $position->add($user->id, $trackId,
+                  strtotime($point->time), $point["lat"], $point["lon"], $point->ele,
+                  NULL, NULL, NULL, "gps", NULL, NULL);
+    if ($ret === false) {
+      exitWithStatus(true, $lang["servererror"]);
+    }
+  }
+}
+
+// return track id
+exitWithStatus(false, NULL, $trackId);
+
+?>