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Edit File : ClassNotFoundErrorEnhancer.php \| Size : 6.60 KB
<?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\ErrorHandler\ErrorEnhancer; use Composer\Autoload\ClassLoader as ComposerClassLoader; use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader; use Symfony\Component\ErrorHandler\DebugClassLoader; use Symfony\Component\ErrorHandler\Error\ClassNotFoundError; use Symfony\Component\ErrorHandler\Error\FatalError; /* * @author Fabien Potencier <fabien@symfony.com> / class ClassNotFoundErrorEnhancer implements ErrorEnhancerInterface { /* * {@inheritdoc} / public function enhance(\Throwable $error): ?\Throwable { // Some specific versions of PHP produce a fatal error when extending a not found class. $message = !$error instanceof FatalError ? $error->getMessage() : $error->getError()['message']; if (!preg_match('/^(Class\|Interface\|Trait) [\'"]([^\'"]+)[\'"] not found$/', $message, $matches)) { return null; } $typeName = strtolower($matches[1]); $fullyQualifiedClassName = $matches[2]; 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 ClassNotFoundError($message, $error); } /* * 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) * * Returns an array of possible fully qualified class names */ private function getClassCandidates(string $class): array { if (!\is_array($functions = spl_autoload_functions())) { return []; } // find Symfony and Composer autoloaders $classes = []; foreach ($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); } private function findClassInPath(string $path, string $class, string $prefix): array { if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.\dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) { return []; } $classes = []; $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; } private function convertFileToClass(string $path, string $file, string $prefix): ?string { $candidates = [ // namespaced class $namespacedClass = str_replace([$path.\DIRECTORY_SEPARATOR, '.php', '/'], ['', '', '\\'], $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; } } try { require_once $file; } catch (\Throwable $e) { return null; } foreach ($candidates as $candidate) { if ($this->classExists($candidate)) { return $candidate; } } return null; } private function classExists(string $class): bool { return class_exists($class, false) \|\| interface_exists($class, false) \|\| trait_exists($class, false); } } Back

Edit File : ClassNotFoundErrorEnhancer.php | Size : 6.60 KB

<?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\ErrorHandler\ErrorEnhancer;

use Composer\Autoload\ClassLoader as ComposerClassLoader;
use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
use Symfony\Component\ErrorHandler\DebugClassLoader;
use Symfony\Component\ErrorHandler\Error\ClassNotFoundError;
use Symfony\Component\ErrorHandler\Error\FatalError;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 */
class ClassNotFoundErrorEnhancer implements ErrorEnhancerInterface
{
    /**
     * {@inheritdoc}
     */
    public function enhance(\Throwable $error): ?\Throwable
    {
        // Some specific versions of PHP produce a fatal error when extending a not found class.
        $message = !$error instanceof FatalError ? $error->getMessage() : $error->getError()['message'];
        if (!preg_match('/^(Class|Interface|Trait) [\'"]([^\'"]+)[\'"] not found$/', $message, $matches)) {
            return null;
        }
        $typeName = strtolower($matches[1]);
        $fullyQualifiedClassName = $matches[2];

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 ClassNotFoundError($message, $error);
    }

/**
     * 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)
     *
     * Returns an array of possible fully qualified class names
     */
    private function getClassCandidates(string $class): array
    {
        if (!\is_array($functions = spl_autoload_functions())) {
            return [];
        }

// find Symfony and Composer autoloaders
        $classes = [];

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);
    }

private function findClassInPath(string $path, string $class, string $prefix): array
    {
        if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.\dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
            return [];
        }

$classes = [];
        $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;
    }

private function convertFileToClass(string $path, string $file, string $prefix): ?string
    {
        $candidates = [
            // namespaced class
            $namespacedClass = str_replace([$path.\DIRECTORY_SEPARATOR, '.php', '/'], ['', '', '\\'], $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;
            }
        }

try {
            require_once $file;
        } catch (\Throwable $e) {
            return null;
        }

foreach ($candidates as $candidate) {
            if ($this->classExists($candidate)) {
                return $candidate;
            }
        }

return null;
    }

private function classExists(string $class): bool
    {
        return class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
    }
}

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