207 lines
7.2 KiB
PHP
207 lines
7.2 KiB
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\FatalErrorHandler;
|
|
|
|
use Symfony\Component\Debug\Exception\ClassNotFoundException;
|
|
use Symfony\Component\Debug\Exception\FatalErrorException;
|
|
use Symfony\Component\Debug\DebugClassLoader;
|
|
use Composer\Autoload\ClassLoader as ComposerClassLoader;
|
|
use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
|
|
|
|
/**
|
|
* ErrorHandler for classes that do not exist.
|
|
*
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
|
*/
|
|
class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
|
|
{
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function handleError(array $error, FatalErrorException $exception)
|
|
{
|
|
$messageLen = strlen($error['message']);
|
|
$notFoundSuffix = '\' not found';
|
|
$notFoundSuffixLen = strlen($notFoundSuffix);
|
|
if ($notFoundSuffixLen > $messageLen) {
|
|
return;
|
|
}
|
|
|
|
if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
|
|
return;
|
|
}
|
|
|
|
foreach (array('class', 'interface', 'trait') as $typeName) {
|
|
$prefix = ucfirst($typeName).' \'';
|
|
$prefixLen = strlen($prefix);
|
|
if (0 !== strpos($error['message'], $prefix)) {
|
|
continue;
|
|
}
|
|
|
|
$fullyQualifiedClassName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
|
|
if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
|
|
$className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
|
|
$namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
|
|
$message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
|
|
$tail = ' for another namespace?';
|
|
} else {
|
|
$className = $fullyQualifiedClassName;
|
|
$message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
|
|
$tail = '?';
|
|
}
|
|
|
|
if ($candidates = $this->getClassCandidates($className)) {
|
|
$tail = array_pop($candidates).'"?';
|
|
if ($candidates) {
|
|
$tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
|
|
} else {
|
|
$tail = ' for "'.$tail;
|
|
}
|
|
}
|
|
$message .= "\nDid you forget a \"use\" statement".$tail;
|
|
|
|
return new ClassNotFoundException($message, $exception);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tries to guess the full namespace for a given class name.
|
|
*
|
|
* By default, it looks for PSR-0 and PSR-4 classes registered via a Symfony or a Composer
|
|
* autoloader (that should cover all common cases).
|
|
*
|
|
* @param string $class A class name (without its namespace)
|
|
*
|
|
* @return array An array of possible fully qualified class names
|
|
*/
|
|
private function getClassCandidates($class)
|
|
{
|
|
if (!is_array($functions = spl_autoload_functions())) {
|
|
return array();
|
|
}
|
|
|
|
// find Symfony and Composer autoloaders
|
|
$classes = array();
|
|
|
|
foreach ($functions as $function) {
|
|
if (!is_array($function)) {
|
|
continue;
|
|
}
|
|
// get class loaders wrapped by DebugClassLoader
|
|
if ($function[0] instanceof DebugClassLoader) {
|
|
$function = $function[0]->getClassLoader();
|
|
|
|
if (!is_array($function)) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader) {
|
|
foreach ($function[0]->getPrefixes() as $prefix => $paths) {
|
|
foreach ($paths as $path) {
|
|
$classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
|
|
}
|
|
}
|
|
}
|
|
if ($function[0] instanceof ComposerClassLoader) {
|
|
foreach ($function[0]->getPrefixesPsr4() as $prefix => $paths) {
|
|
foreach ($paths as $path) {
|
|
$classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return array_unique($classes);
|
|
}
|
|
|
|
/**
|
|
* @param string $path
|
|
* @param string $class
|
|
* @param string $prefix
|
|
*
|
|
* @return array
|
|
*/
|
|
private function findClassInPath($path, $class, $prefix)
|
|
{
|
|
if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
|
|
return array();
|
|
}
|
|
|
|
$classes = array();
|
|
$filename = $class.'.php';
|
|
foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
|
|
if ($filename == $file->getFileName() && $class = $this->convertFileToClass($path, $file->getPathName(), $prefix)) {
|
|
$classes[] = $class;
|
|
}
|
|
}
|
|
|
|
return $classes;
|
|
}
|
|
|
|
/**
|
|
* @param string $path
|
|
* @param string $file
|
|
* @param string $prefix
|
|
*
|
|
* @return string|null
|
|
*/
|
|
private function convertFileToClass($path, $file, $prefix)
|
|
{
|
|
$candidates = array(
|
|
// namespaced class
|
|
$namespacedClass = str_replace(array($path.DIRECTORY_SEPARATOR, '.php', '/'), array('', '', '\\'), $file),
|
|
// namespaced class (with target dir)
|
|
$prefix.$namespacedClass,
|
|
// namespaced class (with target dir and separator)
|
|
$prefix.'\\'.$namespacedClass,
|
|
// PEAR class
|
|
str_replace('\\', '_', $namespacedClass),
|
|
// PEAR class (with target dir)
|
|
str_replace('\\', '_', $prefix.$namespacedClass),
|
|
// PEAR class (with target dir and separator)
|
|
str_replace('\\', '_', $prefix.'\\'.$namespacedClass),
|
|
);
|
|
|
|
if ($prefix) {
|
|
$candidates = array_filter($candidates, function ($candidate) use ($prefix) { return 0 === strpos($candidate, $prefix); });
|
|
}
|
|
|
|
// We cannot use the autoloader here as most of them use require; but if the class
|
|
// is not found, the new autoloader call will require the file again leading to a
|
|
// "cannot redeclare class" error.
|
|
foreach ($candidates as $candidate) {
|
|
if ($this->classExists($candidate)) {
|
|
return $candidate;
|
|
}
|
|
}
|
|
|
|
require_once $file;
|
|
|
|
foreach ($candidates as $candidate) {
|
|
if ($this->classExists($candidate)) {
|
|
return $candidate;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $class
|
|
*
|
|
* @return bool
|
|
*/
|
|
private function classExists($class)
|
|
{
|
|
return class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
|
|
}
|
|
}
|