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Edit File: DebugClassLoader.php
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Debug; /** * Autoloader checking if the class is really defined in the file found. * * The ClassLoader will wrap all registered autoloaders * and will throw an exception if a file is found but does * not declare the class. * * @author Fabien Potencier <fabien@symfony.com> * @author Christophe Coevoet <stof@notk.org> * @author Nicolas Grekas <p@tchwork.com> */ class DebugClassLoader { private $classLoader; private $isFinder; private $loaded = []; private static $caseCheck; private static $checkedClasses = []; private static $final = []; private static $finalMethods = []; private static $deprecated = []; private static $internal = []; private static $internalMethods = []; private static $php7Reserved = ['int' => 1, 'float' => 1, 'bool' => 1, 'string' => 1, 'true' => 1, 'false' => 1, 'null' => 1]; private static $darwinCache = ['/' => ['/', []]]; public function __construct(callable $classLoader) { $this->classLoader = $classLoader; $this->isFinder = \is_array($classLoader) && method_exists($classLoader[0], 'findFile'); if (!isset(self::$caseCheck)) { $file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), \DIRECTORY_SEPARATOR); $i = strrpos($file, \DIRECTORY_SEPARATOR); $dir = substr($file, 0, 1 + $i); $file = substr($file, 1 + $i); $test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file); $test = realpath($dir.$test); if (false === $test || false === $i) { // filesystem is case sensitive self::$caseCheck = 0; } elseif (substr($test, -\strlen($file)) === $file) { // filesystem is case insensitive and realpath() normalizes the case of characters self::$caseCheck = 1; } elseif (false !== stripos(\PHP_OS, 'darwin')) { // on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters self::$caseCheck = 2; } else { // filesystem case checks failed, fallback to disabling them self::$caseCheck = 0; } } } /** * Gets the wrapped class loader. * * @return callable The wrapped class loader */ public function getClassLoader() { return $this->classLoader; } /** * Wraps all autoloaders. */ public static function enable() { // Ensures we don't hit https://bugs.php.net/42098 class_exists('Symfony\Component\Debug\ErrorHandler'); class_exists('Psr\Log\LogLevel'); if (!\is_array($functions = spl_autoload_functions())) { return; } foreach ($functions as $function) { spl_autoload_unregister($function); } foreach ($functions as $function) { if (!\is_array($function) || !$function[0] instanceof self) { $function = [new static($function), 'loadClass']; } spl_autoload_register($function); } } /** * Disables the wrapping. */ public static function disable() { if (!\is_array($functions = spl_autoload_functions())) { return; } foreach ($functions as $function) { spl_autoload_unregister($function); } foreach ($functions as $function) { if (\is_array($function) && $function[0] instanceof self) { $function = $function[0]->getClassLoader(); } spl_autoload_register($function); } } /** * @return string|null */ public function findFile($class) { return $this->isFinder ? $this->classLoader[0]->findFile($class) ?: null : null; } /** * Loads the given class or interface. * * @param string $class The name of the class * * @throws \RuntimeException */ public function loadClass($class) { $e = error_reporting(error_reporting() | \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR); try { if ($this->isFinder && !isset($this->loaded[$class])) { $this->loaded[$class] = true; if (!$file = $this->classLoader[0]->findFile($class) ?: false) { // no-op } elseif (\function_exists('opcache_is_script_cached') && @opcache_is_script_cached($file)) { include $file; return; } elseif (false === include $file) { return; } } else { \call_user_func($this->classLoader, $class); $file = false; } } finally { error_reporting($e); } $this->checkClass($class, $file); } private function checkClass($class, $file = null) { $exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false); if (null !== $file && $class && '\\' === $class[0]) { $class = substr($class, 1); } if ($exists) { if (isset(self::$checkedClasses[$class])) { return; } self::$checkedClasses[$class] = true; $refl = new \ReflectionClass($class); if (null === $file && $refl->isInternal()) { return; } $name = $refl->getName(); if ($name !== $class && 0 === strcasecmp($name, $class)) { throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: "%s" vs "%s".', $class, $name)); } $deprecations = $this->checkAnnotations($refl, $name); if (isset(self::$php7Reserved[strtolower($refl->getShortName())])) { $deprecations[] = sprintf('The "%s" class uses the reserved name "%s", it will break on PHP 7 and higher', $name, $refl->getShortName()); } foreach ($deprecations as $message) { @trigger_error($message, \E_USER_DEPRECATED); } } if (!$file) { return; } if (!$exists) { if (false !== strpos($class, '/')) { throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class)); } throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file)); } if (self::$caseCheck && $message = $this->checkCase($refl, $file, $class)) { throw new \RuntimeException(sprintf('Case mismatch between class and real file names: "%s" vs "%s" in "%s".', $message[0], $message[1], $message[2])); } } public function checkAnnotations(\ReflectionClass $refl, $class) { $deprecations = []; // Don't trigger deprecations for classes in the same vendor if (2 > $len = 1 + (strpos($class, '\\') ?: strpos($class, '_'))) { $len = 0; $ns = ''; } else { $ns = str_replace('_', '\\', substr($class, 0, $len)); } // Detect annotations on the class if (false !== $doc = $refl->getDocComment()) { foreach (['final', 'deprecated', 'internal'] as $annotation) { if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) { self::${$annotation}[$class] = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : ''; } } } $parent = get_parent_class($class); $parentAndOwnInterfaces = $this->getOwnInterfaces($class, $parent); if ($parent) { $parentAndOwnInterfaces[$parent] = $parent; if (!isset(self::$checkedClasses[$parent])) { $this->checkClass($parent); } if (isset(self::$final[$parent])) { $deprecations[] = sprintf('The "%s" class is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $parent, self::$final[$parent], $class); } } // Detect if the parent is annotated foreach ($parentAndOwnInterfaces + class_uses($class, false) as $use) { if (!isset(self::$checkedClasses[$use])) { $this->checkClass($use); } if (isset(self::$deprecated[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len) && !isset(self::$deprecated[$class])) { $type = class_exists($class, false) ? 'class' : (interface_exists($class, false) ? 'interface' : 'trait'); $verb = class_exists($use, false) || interface_exists($class, false) ? 'extends' : (interface_exists($use, false) ? 'implements' : 'uses'); $deprecations[] = sprintf('The "%s" %s %s "%s" that is deprecated%s.', $class, $type, $verb, $use, self::$deprecated[$use]); } if (isset(self::$internal[$use]) && strncmp($ns, str_replace('_', '\\', $use), $len)) { $deprecations[] = sprintf('The "%s" %s is considered internal%s. It may change without further notice. You should not use it from "%s".', $use, class_exists($use, false) ? 'class' : (interface_exists($use, false) ? 'interface' : 'trait'), self::$internal[$use], $class); } } if (trait_exists($class)) { return $deprecations; } // Inherit @final and @internal annotations for methods self::$finalMethods[$class] = []; self::$internalMethods[$class] = []; foreach ($parentAndOwnInterfaces as $use) { foreach (['finalMethods', 'internalMethods'] as $property) { if (isset(self::${$property}[$use])) { self::${$property}[$class] = self::${$property}[$class] ? self::${$property}[$use] + self::${$property}[$class] : self::${$property}[$use]; } } } foreach ($refl->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $method) { if ($method->class !== $class) { continue; } if ($parent && isset(self::$finalMethods[$parent][$method->name])) { list($declaringClass, $message) = self::$finalMethods[$parent][$method->name]; $deprecations[] = sprintf('The "%s::%s()" method is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class); } if (isset(self::$internalMethods[$class][$method->name])) { list($declaringClass, $message) = self::$internalMethods[$class][$method->name]; if (strncmp($ns, $declaringClass, $len)) { $deprecations[] = sprintf('The "%s::%s()" method is considered internal%s. It may change without further notice. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class); } } // Detect method annotations if (false === $doc = $method->getDocComment()) { continue; } foreach (['final', 'internal'] as $annotation) { if (false !== strpos($doc, $annotation) && preg_match('#\n\s+\* @'.$annotation.'(?:( .+?)\.?)?\r?\n\s+\*(?: @|/$|\r?\n)#s', $doc, $notice)) { $message = isset($notice[1]) ? preg_replace('#\.?\r?\n( \*)? *(?= |\r?\n|$)#', '', $notice[1]) : ''; self::${$annotation.'Methods'}[$class][$method->name] = [$class, $message]; } } } return $deprecations; } /** * @param string $file * @param string $class * * @return array|null */ public function checkCase(\ReflectionClass $refl, $file, $class) { $real = explode('\\', $class.strrchr($file, '.')); $tail = explode(\DIRECTORY_SEPARATOR, str_replace('/', \DIRECTORY_SEPARATOR, $file)); $i = \count($tail) - 1; $j = \count($real) - 1; while (isset($tail[$i], $real[$j]) && $tail[$i] === $real[$j]) { --$i; --$j; } array_splice($tail, 0, $i + 1); if (!$tail) { return null; } $tail = \DIRECTORY_SEPARATOR.implode(\DIRECTORY_SEPARATOR, $tail); $tailLen = \strlen($tail); $real = $refl->getFileName(); if (2 === self::$caseCheck) { $real = $this->darwinRealpath($real); } if (0 === substr_compare($real, $tail, -$tailLen, $tailLen, true) && 0 !== substr_compare($real, $tail, -$tailLen, $tailLen, false) ) { return [substr($tail, -$tailLen + 1), substr($real, -$tailLen + 1), substr($real, 0, -$tailLen + 1)]; } return null; } /** * `realpath` on MacOSX doesn't normalize the case of characters. */ private function darwinRealpath($real) { $i = 1 + strrpos($real, '/'); $file = substr($real, $i); $real = substr($real, 0, $i); if (isset(self::$darwinCache[$real])) { $kDir = $real; } else { $kDir = strtolower($real); if (isset(self::$darwinCache[$kDir])) { $real = self::$darwinCache[$kDir][0]; } else { $dir = getcwd(); chdir($real); $real = getcwd().'/'; chdir($dir); $dir = $real; $k = $kDir; $i = \strlen($dir) - 1; while (!isset(self::$darwinCache[$k])) { self::$darwinCache[$k] = [$dir, []]; self::$darwinCache[$dir] = &self::$darwinCache[$k]; while ('/' !== $dir[--$i]) { } $k = substr($k, 0, ++$i); $dir = substr($dir, 0, $i--); } } } $dirFiles = self::$darwinCache[$kDir][1]; if (!isset($dirFiles[$file]) && ') : eval()\'d code' === substr($file, -17)) { // Get the file name from "file_name.php(123) : eval()'d code" $file = substr($file, 0, strrpos($file, '(', -17)); } if (isset($dirFiles[$file])) { return $real.$dirFiles[$file]; } $kFile = strtolower($file); if (!isset($dirFiles[$kFile])) { foreach (scandir($real, 2) as $f) { if ('.' !== $f[0]) { $dirFiles[$f] = $f; if ($f === $file) { $kFile = $k = $file; } elseif ($f !== $k = strtolower($f)) { $dirFiles[$k] = $f; } } } self::$darwinCache[$kDir][1] = $dirFiles; } return $real.$dirFiles[$kFile]; } /** * `class_implements` includes interfaces from the parents so we have to manually exclude them. * * @param string $class * @param string|false $parent * * @return string[] */ private function getOwnInterfaces($class, $parent) { $ownInterfaces = class_implements($class, false); if ($parent) { foreach (class_implements($parent, false) as $interface) { unset($ownInterfaces[$interface]); } } foreach ($ownInterfaces as $interface) { foreach (class_implements($interface) as $interface) { unset($ownInterfaces[$interface]); } } return $ownInterfaces; } }