refactor: remove deprecated methods in Autoloader (codeigniter4#9973)

Author: paulbalandan

system/Autoloader/Autoloader.php

@@ -320,51 +320,6 @@ protected function includeFile(string $file)
         return false;
     }
 
-    /**
-     * Check file path.
-     *
-     * Checks special characters that are illegal in filenames on certain
-     * operating systems and special characters requiring special escaping
-     * to manipulate at the command line. Replaces spaces and consecutive
-     * dashes with a single dash. Trim period, dash and underscore from beginning
-     * and end of filename.
-     *
-     * @return string The sanitized filename
-     *
-     * @deprecated No longer used. See https://github.com/codeigniter4/CodeIgniter4/issues/7055
-     */
-    public function sanitizeFilename(string $filename): string
-    {
-        // Only allow characters deemed safe for POSIX portable filenames.
-        // Plus the forward slash for directory separators since this might be a path.
-        // http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_278
-        // Modified to allow backslash and colons for on Windows machines.
-        $result = preg_match_all('/[^0-9\p{L}\s\/\-_.:\\\\]/u', $filename, $matches);
-
-        if ($result > 0) {
-            $chars = implode('', $matches[0]);
-
-            throw new InvalidArgumentException(
-                'The file path contains special characters "' . $chars
-                . '" that are not allowed: "' . $filename . '"',
-            );
-        }
-        if ($result === false) {
-            $message = preg_last_error_msg();
-
-            throw new RuntimeException($message . '. filename: "' . $filename . '"');
-        }
-
-        // Clean up our filename edges.
-        $cleanFilename = trim($filename, '.-_');
-
-        if ($filename !== $cleanFilename) {
-            throw new InvalidArgumentException('The characters ".-_" are not allowed in filename edges: "' . $filename . '"');
-        }
-
-        return $cleanFilename;
-    }
-
     /**
      * @param array{only?: list<string>, exclude?: list<string>} $composerPackages
      */
@@ -442,44 +397,6 @@ private function loadComposerNamespaces(ClassLoader $composer, array $composerPa
         $this->addNamespace($newPaths);
     }
 
-    /**
-     * Locates autoload information from Composer, if available.
-     *
-     * @deprecated No longer used.
-     *
-     * @return void
-     */
-    protected function discoverComposerNamespaces()
-    {
-        if (! is_file(COMPOSER_PATH)) {
-            return;
-        }
-
-        /**
-         * @var ClassLoader $composer
-         */
-        $composer = include COMPOSER_PATH;
-        $paths    = $composer->getPrefixesPsr4();
-        $classes  = $composer->getClassMap();
-
-        unset($composer);
-
-        // Get rid of CodeIgniter so we don't have duplicates
-        if (isset($paths['CodeIgniter\\'])) {
-            unset($paths['CodeIgniter\\']);
-        }
-
-        $newPaths = [];
-
-        foreach ($paths as $key => $value) {
-            // Composer stores namespaces with trailing slash. We don't.
-            $newPaths[rtrim($key, '\\ ')] = $value;
-        }
-
-        $this->prefixes = array_merge($this->prefixes, $newPaths);
-        $this->classmap = array_merge($this->classmap, $classes);
-    }
-
     /**
      * Loads helpers
      */

tests/system/Autoloader/AutoloaderTest.php

@@ -16,8 +16,6 @@
 use App\Controllers\Home;
 use Closure;
 use CodeIgniter\Exceptions\ConfigException;
-use CodeIgniter\Exceptions\InvalidArgumentException;
-use CodeIgniter\Exceptions\RuntimeException;
 use CodeIgniter\Test\CIUnitTestCase;
 use CodeIgniter\Test\ReflectionHelper;
 use Config\Autoload;
@@ -231,53 +229,6 @@ public function testloadClassNonNamespaced(): void
         $this->assertFalse(($this->classLoader)('Modules'));
     }
 
-    public function testSanitizationContailsSpecialChars(): void
-    {
-        $this->expectException(InvalidArgumentException::class);
-        $this->expectExceptionMessage(
-            'The file path contains special characters "${}!#" that are not allowed: "${../path}!#/to/some/file.php_"',
-        );
-
-        $test = '${../path}!#/to/some/file.php_';
-
-        $this->loader->sanitizeFilename($test);
-    }
-
-    public function testSanitizationFilenameEdges(): void
-    {
-        $this->expectException(InvalidArgumentException::class);
-        $this->expectExceptionMessage(
-            'The characters ".-_" are not allowed in filename edges: "/path/to/some/file.php_"',
-        );
-
-        $test = '/path/to/some/file.php_';
-
-        $this->loader->sanitizeFilename($test);
-    }
-
-    public function testSanitizationRegexError(): void
-    {
-        $this->expectException(RuntimeException::class);
-
-        $test = mb_convert_encoding('クラスファイル.php', 'EUC-JP', 'UTF-8');
-
-        $this->loader->sanitizeFilename($test);
-    }
-
-    public function testSanitizationAllowUnicodeChars(): void
-    {
-        $test = 'Ä/path/to/some/file.php';
-
-        $this->assertSame($test, $this->loader->sanitizeFilename($test));
-    }
-
-    public function testSanitizationAllowsWindowsFilepaths(): void
-    {
-        $test = 'C:\path\to\some/file.php';
-
-        $this->assertSame($test, $this->loader->sanitizeFilename($test));
-    }
-
     public function testFindsComposerRoutes(): void
     {
         $config                      = new Autoload();

user_guide_src/source/changelogs/v4.8.0.rst

@@ -37,6 +37,9 @@ Method Signature Changes
 Removed Deprecated Items
 ========================
 
+- **Autoloader:** Removed the following deprecated methods:
+    - ``CodeIgniter\Autoloader\Autoloader::sanitizeFileName()``
+    - ``CodeIgniter\Autoloader\Autoloader::discoverComposerNamespaces()``
 - **Exceptions:** Removed the following properties and methods deprecated since v4.4.0:
     - ``CodeIgniter\Debug\Exceptions::$ob_level``
     - ``CodeIgniter\Debug\Exceptions::$viewPath``