-<?php
-/**
- * Check syntax of all PHP files in MediaWiki
- *
- * This program 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 2 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, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @ingroup Maintenance
- */
-
-require_once( dirname( __FILE__ ) . '/Maintenance.php' );
-
-class SyntaxChecker extends Maintenance {
-
- // List of files we're going to check
- private $mFiles = array(), $mFailures = array(), $mWarnings = array();
- private $mIgnorePaths = array(), $mNoStyleCheckPaths = array();
-
- public function __construct() {
- parent::__construct();
- $this->mDescription = "Check syntax for all PHP files in MediaWiki";
- $this->addOption( 'with-extensions', 'Also recurse the extensions folder' );
- $this->addOption( 'path', 'Specific path (file or directory) to check, either with absolute path or relative to the root of this MediaWiki installation',
- false, true);
- $this->addOption( 'list-file', 'Text file containing list of files or directories to check', false, true);
- $this->addOption( 'modified', 'Check only files that were modified (requires SVN command-line client)' );
- $this->addOption( 'syntax-only', 'Check for syntax validity only, skip code style warnings' );
- }
-
- protected function getDbType() {
- return Maintenance::DB_NONE;
- }
-
- public function execute() {
- $this->buildFileList();
-
- // ParseKit is broken on PHP 5.3+, disabled until this is fixed
- $useParseKit = function_exists( 'parsekit_compile_file' ) && version_compare( PHP_VERSION, '5.3', '<' );
-
- $str = 'Checking syntax (using ' . ( $useParseKit ?
- 'parsekit)' : ' php -l, this can take a long time)' );
- $this->output( $str );
- foreach( $this->mFiles as $f ) {
- if( $useParseKit ) {
- $this->checkFileWithParsekit( $f );
- } else {
- $this->checkFileWithCli( $f );
- }
- if( !$this->hasOption( 'syntax-only' ) ) {
- $this->checkForMistakes( $f );
- }
- }
- $this->output( "\nDone! " . count( $this->mFiles ) . " files checked, " .
- count( $this->mFailures ) . " failures and " . count( $this->mWarnings ) .
- " warnings found\n" );
- }
-
- /**
- * Build the list of files we'll check for syntax errors
- */
- private function buildFileList() {
- global $IP;
-
- $this->mIgnorePaths = array(
- // Compat stuff, explodes on PHP 5.3
- "includes/NamespaceCompat.php$",
- "DiscussionThreading/REV",
- );
-
- $this->mNoStyleCheckPaths = array(
- // Third-party code we don't care about
- "/activemq_stomp/",
- "EmailPage/phpMailer",
- "FCKeditor/fckeditor/",
- '\bphplot-',
- "/svggraph/",
- "\bjsmin.php$",
- "OggHandler/PEAR/",
- "QPoll/Excel/",
- "/geshi/",
- "/smarty/",
- );
-
- if ( $this->hasOption( 'path' ) ) {
- $path = $this->getOption( 'path' );
- if ( !$this->addPath( $path ) ) {
- $this->error( "Error: can't find file or directory $path\n", true );
- }
- return; // process only this path
- } elseif ( $this->hasOption( 'list-file' ) ) {
- $file = $this->getOption( 'list-file' );
- $f = @fopen( $file, 'r' );
- if ( !$f ) {
- $this->error( "Can't open file $file\n", true );
- }
- while( $path = trim( fgets( $f ) ) ) {
- $this->addPath( $path );
- }
- fclose( $f );
- return;
- } elseif ( $this->hasOption( 'modified' ) ) {
- $this->output( "Retrieving list from Subversion... " );
- $parentDir = wfEscapeShellArg( dirname( __FILE__ ) . '/..' );
- $output = wfShellExec( "svn status --ignore-externals $parentDir", $retval );
- if ( $retval ) {
- $this->error( "Error retrieving list from Subversion!\n", true );
- } else {
- $this->output( "done\n" );
- }
-
- preg_match_all( '/^\s*[AM]\s+(.*?)\r?$/m', $output, $matches );
- foreach ( $matches[1] as $file ) {
- if ( self::isSuitableFile( $file ) && !is_dir( $file ) ) {
- $this->mFiles[] = $file;
- }
- }
- return;
- }
-
- $this->output( 'Building file list...', 'listfiles' );
-
- // Only check files in these directories.
- // Don't just put $IP, because the recursive dir thingie goes into all subdirs
- $dirs = array(
- $IP . '/includes',
- $IP . '/config',
- $IP . '/languages',
- $IP . '/maintenance',
- $IP . '/skins',
- );
- if( $this->hasOption( 'with-extensions' ) ) {
- $dirs[] = $IP . '/extensions';
- }
-
- foreach( $dirs as $d ) {
- $this->addDirectoryContent( $d );
- }
-
- // Manually add two user-editable files that are usually sources of problems
- if ( file_exists( "$IP/LocalSettings.php" ) ) {
- $this->mFiles[] = "$IP/LocalSettings.php";
- }
- if ( file_exists( "$IP/AdminSettings.php" ) ) {
- $this->mFiles[] = "$IP/AdminSettings.php";
- }
-
- $this->output( 'done.', 'listfiles' );
- }
-
- /**
- * Returns true if $file is of a type we can check
- */
- private function isSuitableFile( $file ) {
- $ext = pathinfo( $file, PATHINFO_EXTENSION );
- if ( $ext != 'php' && $ext != 'inc' && $ext != 'php5' )
- return false;
- foreach( $this->mIgnorePaths as $regex ) {
- $m = array();
- if ( preg_match( "~{$regex}~", $file, $m ) )
- return false;
- }
- return true;
- }
-
- /**
- * Add given path to file list, searching it in include path if needed
- */
- private function addPath( $path ) {
- global $IP;
- return $this->addFileOrDir( $path ) || $this->addFileOrDir( "$IP/$path" );
- }
-
- /**
- * Add given file to file list, or, if it's a directory, add its content
- */
- private function addFileOrDir( $path ) {
- if ( is_dir( $path ) ) {
- $this->addDirectoryContent( $path );
- } elseif ( file_exists( $path ) ) {
- $this->mFiles[] = $path;
- } else {
- return false;
- }
- return true;
- }
-
- /**
- * Add all suitable files in given directory or its subdirectories to the file list
- *
- * @param $dir String: directory to process
- */
- private function addDirectoryContent( $dir ) {
- $iterator = new RecursiveIteratorIterator(
- new RecursiveDirectoryIterator( $dir ),
- RecursiveIteratorIterator::SELF_FIRST
- );
- foreach ( $iterator as $file ) {
- if ( $this->isSuitableFile( $file->getRealPath() ) ) {
- $this->mFiles[] = $file->getRealPath();
- }
- }
- }
-
- /**
- * Check a file for syntax errors using Parsekit. Shamelessly stolen
- * from tools/lint.php by TimStarling
- * @param $file String Path to a file to check for syntax errors
- * @return boolean
- */
- private function checkFileWithParsekit( $file ) {
- static $okErrors = array(
- 'Redefining already defined constructor',
- 'Assigning the return value of new by reference is deprecated',
- );
- $errors = array();
- parsekit_compile_file( $file, $errors, PARSEKIT_SIMPLE );
- $ret = true;
- if ( $errors ) {
- foreach ( $errors as $error ) {
- foreach ( $okErrors as $okError ) {
- if ( substr( $error['errstr'], 0, strlen( $okError ) ) == $okError ) {
- continue 2;
- }
- }
- $ret = false;
- $this->output( "Error in $file line {$error['lineno']}: {$error['errstr']}\n" );
- $this->mFailures[$file] = $errors;
- }
- }
- return $ret;
- }
-
- /**
- * Check a file for syntax errors using php -l
- * @param $file String Path to a file to check for syntax errors
- * @return boolean
- */
- private function checkFileWithCli( $file ) {
- $res = exec( 'php -l ' . wfEscapeShellArg( $file ) );
- if( strpos( $res, 'No syntax errors detected' ) === false ) {
- $this->mFailures[$file] = $res;
- $this->output( $res . "\n" );
- return false;
- }
- return true;
- }
-
- /**
- * Check a file for non-fatal coding errors, such as byte-order marks in the beginning
- * or pointless ?> closing tags at the end.
- *
- * @param $file String String Path to a file to check for errors
- * @return boolean
- */
- private function checkForMistakes( $file ) {
- foreach( $this->mNoStyleCheckPaths as $regex ) {
- $m = array();
- if ( preg_match( "~{$regex}~", $file, $m ) )
- return;
- }
-
- $text = file_get_contents( $file );
-
- $this->checkRegex( $file, $text, '/^[\s\r\n]+<\?/', 'leading whitespace' );
- $this->checkRegex( $file, $text, '/\?>[\s\r\n]*$/', 'trailing ?>' );
- $this->checkRegex( $file, $text, '/^[\xFF\xFE\xEF]/', 'byte-order mark' );
- }
-
- private function checkRegex( $file, $text, $regex, $desc ) {
- if ( !preg_match( $regex, $text ) ) {
- return;
- }
-
- if ( !isset( $this->mWarnings[$file] ) ) {
- $this->mWarnings[$file] = array();
- }
- $this->mWarnings[$file][] = $desc;
- $this->output( "Warning in file $file: $desc found.\n" );
- }
-}
-
-$maintClass = "SyntaxChecker";
-require_once( DO_MAINTENANCE );
-