Current File : //home2/vacivi36/www2]/old/wp-content/plugins/loco-translate/src/ajax/FsReferenceController.php
<?php
/**
* Ajax service that returns source code for a given file system reference
* Currently this is only PHP, but could theoretically be any file type.
*/
class Loco_ajax_FsReferenceController extends Loco_ajax_common_BundleController {
/**
* @return Loco_fs_File
*/
private function findSourceFile( $refpath ){
/*/ absolute file path means no search paths required
if( Loco_fs_File::abs($refpath) ){
$srcfile = new Loco_fs_File( $refpath );
if( $srcfile->exists() ){
return $srcfile;
}
}*/
// reference may be resolvable via referencing PO file's location
$pofile = new Loco_fs_File( $this->get('path') );
$pofile->normalize( loco_constant('WP_CONTENT_DIR') );
if( ! $pofile->exists() ){
throw new InvalidArgumentException('PO/POT file required to resolve reference');
}
$search = new Loco_gettext_SearchPaths;
$search->init($pofile);
if( $srcfile = $search->match($refpath) ){
return $srcfile;
}
// reference may be resolvable via known project roots
try {
$bundle = $this->getBundle();
// Loco extractions will always be relative to bundle root
$srcfile = new Loco_fs_File( $refpath );
$srcfile->normalize( $bundle->getDirectoryPath() );
if( $srcfile->exists() ){
return $srcfile;
}
// check relative to parent theme root
if( $bundle->isTheme() && ( $parent = $bundle->getParentTheme() ) ){
$srcfile = new Loco_fs_File( $refpath );
$srcfile->normalize( $parent->getDirectoryPath() );
if( $srcfile->exists() ){
return $srcfile;
}
}
// final attempt - search all project source roots
// TODO is there too large a risk of false positives? especially with files like index.php
/* @var $root Loco_fs_Directory */
/*foreach( $this->getProject($bundle)->getConfiguredSources() as $root ){
if( $root->isDirectory() ){
$srcfile = new Loco_fs_File( $refpath );
$srcfile->normalize( $root->getPath() );
if( $srcfile->exists() ){
return $srcfile;
}
}
}*/
}
catch( Loco_error_Exception $e ){
// permitted for there to be no bundle or project when viewing orphaned file
}
throw new Loco_error_Exception( sprintf('Failed to find source file matching "%s"',$refpath) );
}
/**
* {@inheritdoc}
*/
public function render(){
$post = $this->validate();
// at the very least we need a reference to examine
if( ! $post->has('ref') ){
throw new InvalidArgumentException('ref parameter required');
}
// reference must parse as <path>:<line>
$ref = $post->ref;
if( ! preg_match('/^(.+):(\d+)$/', $ref, $r ) ){
throw new InvalidArgumentException('Invalid file reference, '.$ref );
}
// find file or fail
list( , $refpath, $refline ) = $r;
$srcfile = $this->findSourceFile($refpath);
$type = strtolower( $srcfile->extension() );
$this->set('type', $type );
$this->set('line', (int) $refline );
$this->set('path', $srcfile->getRelativePath( loco_constant('WP_CONTENT_DIR') ) );
// source code will be HTML-tokenized into multiple lines
$code = array();
// PHP is the most likely format. highlighting on back end because tokenizer provides more control than highlight.js
if( 'php' === $type ) {
$thisline = 1;
foreach( token_get_all( $srcfile->getContents() ) as $tok ){
if( is_array($tok) ){
// line numbers added in PHP 5.2.2 - WordPress minimum is 5.2.4
list( $t, $str, $startline ) = $tok;
$clss = token_name($t);
// tokens can span multiple lines (whitespace/html/comments)
$lines = preg_split('/\\R/', $str );
}
else {
// scalar symbol will always start on the line that the previous token ended on
$clss = 'T_NONE';
$lines = array( $tok );
$startline = $thisline;
}
// token can span multiple lines, so include only bytes on required line[s]
foreach( $lines as $i => $line ){
$thisline = $startline + $i;
$html = '<code class="'.$clss.'">'.htmlentities($line,ENT_COMPAT,'UTF-8').'</code>';
// append highlighted token to current line
$j = $thisline - 1;
if( isset($code[$j]) ){
$code[$j] .= $html;
}
else {
$code[$j] = $html;
}
}
}
}
/*/ TODO permit limited other file types, but without back end highlighting
else if( ){
foreach( preg_split( '/\\R/u', $srcfile->getContents() ) as $line ){
$code[] = '<code>'.htmlentities($line,ENT_COMPAT,'UTF-8').'</code>';
}
}*/
else {
throw new Loco_error_Exception( sprintf('%s source view not supported', $type) );
}
if( ! isset($code[$refline-1]) ){
throw new Loco_error_Exception( sprintf('Line %u not in source file', $refline) );
}
$this->set( 'code', $code );
return parent::render();
}
}
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