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<?php
/**
* Ajax "download" route, for outputting raw gettext file contents.
*/
class Loco_ajax_DownloadController extends Loco_ajax_common_BundleController {
/**
* @return string
*/
private function renderArchive( $path ){
$zipfile = new Loco_fs_File($path);
$pofile = new Loco_fs_DummyFile( '/fake/'.$zipfile->filename().'.po');
// Resolving script refs requires configured project
$bundle = $this->getBundle();
$project = $this->getProject($bundle);
// Create a temporary file for zip, which must work on disk, not in memory
$path = wp_tempnam();
if( ! $path || ! file_exists($path) ){
throw new Loco_error_Exception('Failed to create temporary file for zip archive');
}
register_shutdown_function('unlink',$path);
// initialize zip
// TODO PHP 8.4 Using empty file as ZipArchive is deprecated
loco_check_extension('zip');
$z = new ZipArchive;
$z->open( $path, ZipArchive::CREATE);
$z->setArchiveComment( $bundle->getName() );
$post = Loco_mvc_PostParams::get();
$data = Loco_gettext_Data::fromSource($post->source);
$compiler = new Loco_gettext_Compiler($pofile);
/* @var Loco_fs_DummyFile $file */
foreach( $compiler->writeAll($data,$project) as $file ){
$z->addFromString( $file->basename(), $file->getContents() );
}
$z->close();
return file_get_contents($path);
}
/**
* {@inheritdoc}
*/
public function render(){
$post = $this->validate();
$path = $this->get('path');
// The UI now replaces .mo with .zip, but requires the ZipArchive extension is installed.
if( '.zip' === substr($path,-4) ){
return $this->renderArchive($path);
}
// Below is for direct .po/pot downloads, plus legacy .mo/l10n.php
// mo is only used when zip is not available. php works but not hooked into UI.
$file = new Loco_fs_File($path);
$file->normalize( loco_constant('WP_CONTENT_DIR') );
$ext = Loco_gettext_Data::ext($file);
// posted source must be clean and must parse as whatever the file extension claims to be
$raw = $post->source;
if( is_string($raw) && '' !== $raw ){
// compile source if target is MO
if( 'mo' === $ext ) {
$raw = Loco_gettext_Data::fromSource($raw)->msgfmt();
}
// supporting .l10n.php for WordPress >= 6.5
else if( 'php' === $ext && class_exists('WP_Translation_File_PHP',false) ){
$raw = Loco_gettext_PhpCache::render( Loco_gettext_Data::fromSource($raw) );
}
}
// else file can be output directly if it exists.
// note that files on disk will not be parsed or manipulated. they will download strictly as-is
else if( $file->exists() ){
$raw = $file->getContents();
}
// else we can't do anything except bail
else {
throw new Loco_error_Exception('File not found and no source posted');
}
// Observe UTF-8 BOM setting for PO and POT only
if( 'po' === $ext || 'pot' === $ext ){
$has_bom = "\xEF\xBB\xBF" === substr($raw,0,3);
$use_bom = (bool) Loco_data_Settings::get()->po_utf8_bom;
// only alter file if valid UTF-8. Deferring detection overhead until required
if( $has_bom !== $use_bom && preg_match('//u',$raw) ){
if( $use_bom ){
$raw = "\xEF\xBB\xBF".$raw; // prepend
}
else {
$raw = substr($raw,3); // strip bom
}
}
}
return $raw;
}
}
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