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Optimized code for compressing GPX files

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surrim 2023-01-29 17:46:09 +00:00
parent 43730f9dab
commit 98ff6901df
1 changed files with 15 additions and 19 deletions
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34
serendipity_event_osm/serendipity_event_static_osm.php
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@ -47,31 +47,27 @@ class serendipity_event_static_osm extends serendipity_event
} else if ($event === 'backend_image_add') {
$fileName = $eventData;
if (str_ends_with(strtolower($fileName), '.gpx') && $this->get_config('compress_gpx', true) === true) {
$tmpFile = tmpfile();
fwrite($tmpFile, '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><gpx version="1.1" creator="surrim.org" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">');
$gpx = simplexml_load_file($fileName);
$gpx = new SimpleXMLElement($fileName, dataIsURL: true);
$tmpGpx = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><gpx version="1.1" creator="surrim.org" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"></gpx>');
foreach (($gpx->trk ?? []) as $trk) {
fwrite($tmpFile, '<trk>');
foreach (($trk->trkseg ?? []) as $seg) {
fwrite($tmpFile, '<trkseg>');
foreach (($seg->trkpt ?? []) as $pt) {
fwrite($tmpFile, '<trkpt lat="'.$pt['lat'].'" lon="'.$pt['lon'].'"><ele>'.$pt->ele.'</ele></trkpt>');
$tmpTrk = $tmpGpx->addChild('trk');
foreach (($trk->trkseg ?? []) as $trkseg) {
$tmpTrkseg = $tmpTrk->addChild('trkseg');
foreach (($trkseg->trkpt ?? []) as $trkpt) {
$tmpTrkpt = $tmpTrkseg->addChild('trkpt');
$tmpTrkpt->addAttribute('lat', $trkpt['lat']);
$tmpTrkpt->addAttribute('lon', $trkpt['lon']);
if ($trkpt->ele != '') {
$tmpTrkpt->addChild('ele', $trkpt->ele);
}
}
fwrite($tmpFile, '</trkseg>');
}
fwrite($tmpFile, '</trk>');
}
fwrite($tmpFile, '</gpx>');
$fileSize = ftell($tmpFile);
unset($gpx);
rewind($tmpFile);
$file = fopen($fileName, 'w');
stream_copy_to_stream($tmpFile, $file, $fileSize);
fclose($file);
fclose($tmpFile);
$tmpGpx->asXML($fileName);
clearstatcache(true, $fileName);
$fileId = $addData['image_id'];
$fileSize = filesize($fileName);
serendipity_updateImageInDatabase(['size' => $fileSize], $fileId);
}
}