Issue #2057259 by alexpott, cweagans, swentel: Fixed Malformed...

Issue #2057259 by alexpott, cweagans, swentel: Fixed Malformed modulename.info.yml file causes fatal error.

core/core.services.yml

@@ -650,3 +650,5 @@ services:
     class: Drupal\Core\Asset\JsCollectionGrouper
   asset.js.dumper:
     class: Drupal\Core\Asset\AssetDumper
+  info_parser:
+    class: Drupal\Core\Extension\InfoParser

core/includes/common.inc

@@ -11,7 +11,6 @@
 use Drupal\Component\Utility\Xss;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Language\Language;
-use Symfony\Component\Yaml\Parser;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\Request;
 use Drupal\Component\PhpStorage\PhpStorageFactory;
@@ -4600,54 +4599,19 @@ function element_set_attributes(array &$element, array $map) {
 /**
  * Parses Drupal module and theme .info.yml files.
  *
- * Info files are NOT for placing arbitrary theme and module-specific settings.
- * Use Config::get() and Config::set()->save() for that. Info files are
- * formatted as YAML. If the 'version' key is set to 'VERSION' in any info file,
- * then the value will be substituted with the current version of Drupal core.
- *
- * Information stored in a module .info.yml file:
- * - name: The real name of the module for display purposes.
- * - description: A brief description of the module.
- * - dependencies: An array of shortnames of other modules this module requires.
- * - package: The name of the package of modules this module belongs to.
- *
- * See forum.info.yml for an example of a module .info.yml file.
- *
- * Information stored in a theme .info.yml file:
- * - name: The real name of the theme for display purposes.
- * - description: Brief description.
- * - screenshot: Path to screenshot relative to the theme's .info.yml file.
- * - engine: Theme engine; typically twig.
- * - base theme: Name of a base theme, if applicable.
- * - regions: Listed regions.
- * - features: Features available.
- * - stylesheets: Theme stylesheets.
- * - scripts: Theme scripts.
- *
- * See bartik.info.yml for an example of a theme .info.yml file.
- *
  * @param string $filename
  *   The file we are parsing. Accepts file with relative or absolute path.
  *
  * @return array
  *   The info array.
+ *
+ * @see \Drupal\Core\Extension\InfoParser::parse().
+ *
+ * @deprecated as of Drupal 8.0. Use \Drupal::service('info_parser')->parse()
+ *   instead.
  */
 function drupal_parse_info_file($filename) {
-  static $info = array();
-
-  if (!isset($info[$filename])) {
-    if (!file_exists($filename)) {
-      $info[$filename] = array();
-    }
-    else {
-      $parser = new Parser();
-      $info[$filename] = $parser->parse(file_get_contents($filename));
-      if (isset($info[$filename]['version']) && $info[$filename]['version'] === 'VERSION') {
-        $info[$filename]['version'] = \Drupal::VERSION;
-      }
-    }
-  }
-  return $info[$filename];
+  return \Drupal::service('info_parser')->parse($filename);
 }
 
 /**

core/includes/install.core.inc

@@ -464,6 +464,8 @@ function install_begin_request(&$install_state) {
     $container->register('asset.js.collection_renderer', 'Drupal\Core\Asset\JsCollectionRenderer')
       ->addArgument(new Reference('state'));
 
+    // Register the info parser.
+    $container->register('info_parser', 'Drupal\Core\Extension\InfoParser');
   }
   // Set the request in the kernel to the new created Request above
   // so it is available to the rest of the installation process.

core/includes/install.inc

@@ -1076,7 +1076,7 @@ function install_profile_info($profile, $langcode = 'en') {
       'php' => DRUPAL_MINIMUM_PHP,
     );
     $profile_file = drupal_get_path('profile', $profile) . "/$profile.info.yml";
-    $info = drupal_parse_info_file($profile_file);
+    $info = \Drupal::service('info_parser')->parse($profile_file);
     $info += $defaults;
     $info['dependencies'] = array_unique(array_merge(
       drupal_required_modules(),

core/includes/module.inc

@@ -292,7 +292,7 @@ function drupal_required_modules() {
   $required[] = drupal_get_profile();
 
   foreach ($files as $name => $file) {
-    $info = drupal_parse_info_file($file->uri);
+    $info = \Drupal::service('info_parser')->parse($file->uri);
     if (!empty($info) && !empty($info['required']) && $info['required']) {
       $required[] = $name;
     }

core/lib/Drupal/Core/Extension/InfoParser.php

+<?php
+
+/**
+ * @file
+ * Contains Drupal\Core\Extension\InfoParser.
+ */
+
+namespace Drupal\Core\Extension;
+
+use Drupal\Component\Utility\String;
+use Symfony\Component\Yaml\Exception\ParseException;
+use Symfony\Component\Yaml\Parser;
+
+
+/**
+ * Class that parses Drupal module's, theme's and profile's .info.yml files.
+ */
+class InfoParser implements InfoParserInterface {
+
+  /**
+   * Array of all info keyed by filename.
+   *
+   * @var array
+   */
+  protected $parsedInfos = array();
+
+  /**
+   * Symfony YAML parser object.
+   *
+   * @var \Symfony\Component\Yaml\Parser
+   */
+  protected $parser;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function parse($filename) {
+    if (!isset($this->parsedInfos[$filename])) {
+      if (!file_exists($filename)) {
+        $this->parsedInfos[$filename] = array();
+      }
+      else {
+        try {
+          $this->parsedInfos[$filename] = $this->getParser()->parse(file_get_contents($filename));
+        }
+        catch (ParseException $e) {
+          $message = String::format("Unable to parse !file. Parser error !error.", array('!file' => $filename, '!error' => $e->getMessage()));
+          throw new InfoParserException($message, $filename);
+        }
+        $missing_keys = array_diff($this->getRequiredKeys(), array_keys($this->parsedInfos[$filename]));
+        if (!empty($missing_keys)) {
+          $message = format_plural(count($missing_keys), 'Missing required key (!missing_keys) in !file.', 'Missing required keys (!missing_keys) in !file.', array('!missing_keys' => implode(', ', $missing_keys), '!file' => $filename));
+          throw new InfoParserException($message, $filename);
+        }
+        if (isset($this->parsedInfos[$filename]['version']) && $this->parsedInfos[$filename]['version'] === 'VERSION') {
+          $this->parsedInfos[$filename]['version'] = \Drupal::VERSION;
+        }
+      }
+    }
+    return $this->parsedInfos[$filename];
+  }
+
+  /**
+   * Returns a parser for parsing .info.yml files.
+   *
+   * @return \Symfony\Component\Yaml\Parser
+   *   Symfony YAML parser object.
+   */
+  protected function getParser() {
+    if (!$this->parser) {
+      $this->parser = new Parser();
+    }
+    return $this->parser;
+  }
+
+  /**
+   * Returns an array of keys required to exist in .info.yml file.
+   *
+   * @return array
+   *   An array of required keys.
+   */
+  protected function getRequiredKeys() {
+    return array('name', 'type');
+  }
+
+}

core/lib/Drupal/Core/Extension/InfoParserException.php

+<?php
+/**
+ * @file
+ * Contains Drupal\Core\Extension\InfoParserException.
+ */
+
+namespace Drupal\Core\Extension;
+
+/**
+ * An exception thrown by the InfoParser class whilst parsing info.yml files.
+ */
+class InfoParserException extends \RuntimeException {
+
+  /**
+   * The info.yml filename.
+   *
+   * @var string
+   */
+  protected $infoFilename;
+
+  /**
+   * Constructs the InfoParserException object.
+   *
+   * @param string $message
+   *   The Exception message to throw.
+   * @param string $filename
+   *   The info.yml filename.
+   */
+  public function __construct($message, $info_filename) {
+    $this->infoFilename = $info_filename;
+    parent::__construct($message);
+  }
+
+  /**
+   * Gets the info.yml filename.
+   *
+   * @return string
+   *   The info.yml filename.
+   */
+  public function getInfoFilename () {
+    return $this->infoFilename;
+  }
+
+}

core/lib/Drupal/Core/Extension/InfoParserInterface.php

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Extension\InfoParserInterface.
+ */
+
+namespace Drupal\Core\Extension;
+
+/**
+ * Interface for classes that parses Drupal's info.yml files.
+ */
+interface InfoParserInterface  {
+
+  /**
+   * Parses Drupal module, theme and profile .info.yml files.
+   *
+   * Info files are NOT for placing arbitrary theme and module-specific
+   * settings. Use Config::get() and Config::set()->save() for that. Info files
+   * are formatted as YAML. If the 'version' key is set to 'VERSION' in any info
+   * file, then the value will be substituted with the current version of Drupal
+   * core.
+   *
+   * Information stored in all .info.yml files:
+   * - name: The real name of the module for display purposes. (Required)
+   * - description: A brief description of the module.
+   * - type: whether it is for a module or theme. (Required)
+   *
+   * Information stored in a module .info.yml file:
+   * - dependencies: An array of shortnames of other modules this module requires.
+   * - package: The name of the package of modules this module belongs to.
+   *
+   * See forum.info.yml for an example of a module .info.yml file.
+   *
+   * Information stored in a theme .info.yml file:
+   * - screenshot: Path to screenshot relative to the theme's .info.yml file.
+   * - engine: Theme engine; typically twig.
+   * - base theme: Name of a base theme, if applicable.
+   * - regions: Listed regions.
+   * - features: Features available.
+   * - stylesheets: Theme stylesheets.
+   * - scripts: Theme scripts.
+   *
+   * See bartik.info.yml for an example of a theme .info.yml file.
+   *
+   * @param string $filename
+   *   The file we are parsing. Accepts file with relative or absolute path.
+   *
+   * @return array
+   *   The info array.
+   *
+   * @throw \Drupal\Core\Extension\InfoParserException
+   *   Exception thrown if there is a parsing error or the .info.yml file does
+   *   not contain a required key.
+   */
+  public function parse($filename);
+
+}
+

core/lib/Drupal/Core/SystemListingInfo.php

@@ -56,7 +56,7 @@ protected function process(array $files, array $files_to_add) {
       // new resource on the list for merging.
       if (file_exists($info_file = dirname($file->uri) . '/' . $file->name . '.info.yml')) {
         // Get the .info.yml file for the module or theme this file belongs to.
-        $info = drupal_parse_info_file($info_file);
+        $info = \Drupal::service('info_parser')->parse($info_file);
 
         // If the module or theme is incompatible with Drupal core, remove it
         // from the array for the current search directory, so it is not

core/lib/Drupal/Core/Updater/Updater.php

@@ -137,13 +137,10 @@ public static function getProjectName($directory) {
    */
   public static function getProjectTitle($directory) {
     $info_file = self::findInfoFile($directory);
-    $info = drupal_parse_info_file($info_file);
+    $info = \Drupal::service('info_parser')->parse($info_file);
     if (empty($info)) {
       throw new UpdaterException(t('Unable to parse info file: %info_file.', array('%info_file' => $info_file)));
     }
-    if (empty($info['name'])) {
-      throw new UpdaterException(t("The info file (%info_file) does not define a 'name' attribute.", array('%info_file' => $info_file)));
-    }
     return $info['name'];
   }
 

core/lib/Drupal/Core/Utility/ProjectInfo.php

@@ -201,7 +201,8 @@ function getProjectName($file) {
    * Filters the project .info.yml data to only save attributes we need.
    *
    * @param array $info
-   *   Array of .info.yml file data as returned by drupal_parse_info_file().
+   *   Array of .info.yml file data as returned by
+   *   \Drupal\Core\Extension\InfoParser.
    * @param $additional_whitelist
    *   (optional) Array of additional elements to be collected from the .info.yml
    *   file. Defaults to array().

core/modules/aggregator/tests/modules/aggregator_test_views/aggregator_test_views.info.yml

 name: 'Aggregator test views'
+type: module
 description: 'Provides default views for views aggregator tests.'
 package: Testing
 version: VERSION

core/modules/dblog/tests/modules/dblog_test_views/dblog_test_views.info.yml

 name: 'Dblog test views'
+type: module
 description: 'Provides default views for views dblog tests.'
 package: Testing
 version: VERSION

core/modules/simpletest/lib/Drupal/simpletest/TestBase.php

@@ -970,6 +970,9 @@ protected function prepareEnvironment() {
      // @todo Remove this once this class has no calls to t() and format_plural()
     $this->container->register('string_translation', 'Drupal\Core\StringTranslation\TranslationManager');
 
+    // Register info parser.
+    $this->container->register('info_parser', 'Drupal\Core\Extension\InfoParser');
+
     \Drupal::setContainer($this->container);
 
     // Unset globals.

core/modules/system/lib/Drupal/system/Form/ModulesListForm.php

@@ -19,7 +19,7 @@
  *
  * The list of modules gets populated by module.info.yml files, which contain
  * each module's name, description, and information about which modules it
- * requires. See drupal_parse_info_file() for info on module.info.yml
+ * requires. See \Drupal\Core\Extension\InfoParser for info on module.info.yml
  * descriptors.
  */
 class ModulesListForm extends FormBase {

core/modules/system/lib/Drupal/system/Tests/Common/ParseInfoFileUnitTest.php

-<?php
-
-/**
- * @file
- * Definition of Drupal\system\Tests\Common\ParseInfoFileUnitTest.
- */
-
-namespace Drupal\system\Tests\Common;
-
-use Drupal\simpletest\UnitTestBase;
-
-/**
- * Tests the drupal_parse_info_file() API function.
- */
-class ParseInfoFileUnitTest extends UnitTestBase {
-  public static function getInfo() {
-    return array(
-      'name' => 'Parsing .info.yml files',
-      'description' => 'Tests the drupal_parse_info_file() API function.',
-      'group' => 'Common',
-    );
-  }
-
-  /**
-   * Parses an example .info.yml file and verifies the results.
-   */
-  function testParseInfoFile() {
-    $info_values = drupal_parse_info_file(drupal_get_path('module', 'system') . '/tests/common_test_info.txt');
-    $this->assertEqual($info_values['simple_string'], 'A simple string', 'Simple string value was parsed correctly.', 'System');
-    $this->assertEqual($info_values['version'], \Drupal::VERSION, 'Constant value was parsed correctly.', 'System');
-    $this->assertEqual($info_values['double_colon'], 'dummyClassName::', 'Value containing double-colon was parsed correctly.', 'System');
-  }
-}

core/modules/system/lib/Drupal/system/Tests/Extension/InfoParserUnitTest.php

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\system\Tests\Extension\InfoParserUnitTest.
+ */
+
+namespace Drupal\system\Tests\Extension;
+
+use Drupal\simpletest\DrupalUnitTestBase;
+use Drupal\Core\Extension\InfoParser;
+use Drupal\Core\Extension\InfoParserException;
+
+/**
+ * Tests InfoParser class.
+ *
+ * Files for this test are stored in core/modules/system/tests/fixtures and end
+ * with .info.txt instead of info.yml in order not not be considered as real
+ * extensions.
+ */
+class InfoParserUnitTest extends DrupalUnitTestBase {
+
+  /**
+   * The InfoParser object.
+   *
+   * @var \Drupal\Core\Extension\InfoParser
+   */
+  protected $infoParser;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'InfoParser',
+      'description' => 'Tests InfoParser class and exception.',
+      'group' => 'Extension',
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->infoParser = new InfoParser();
+  }
+
+  /**
+   * Tests the functionality of the infoParser object.
+   */
+  public function testInfoParser() {
+    $info = $this->infoParser->parse('core/modules/system/tests/fixtures/does_not_exist.info.txt');
+    $this->assertTrue(empty($info), 'Non existing info.yml returns empty array.');
+
+    // Test that invalid YAML throws an exception and that message contains the
+    // filename that caused it.
+    $filename = 'core/modules/system/tests/fixtures/broken.info.txt';
+    try {
+      $this->infoParser->parse($filename);
+      $this->fail('Expected InfoParserException not thrown when reading broken.info.txt');
+    }
+    catch (InfoParserException $e) {
+      $this->assertTrue(strpos($e->getMessage(), $filename) !== FALSE, 'Exception message contains info.yml filename.');
+    }
+
+    // Tests that missing required keys are detected.
+    $filename = 'core/modules/system/tests/fixtures/missing_keys.info.txt';
+    try {
+      $this->infoParser->parse($filename);
+      $this->fail('Expected InfoParserException not thrown when reading missing_keys.info.txt');
+    }
+    catch (InfoParserException $e) {
+      $expected_message = 'Missing required keys (name, type) in core/modules/system/tests/fixtures/missing_keys.info.txt.';
+      $this->assertEqual($e->getMessage(), $expected_message);
+    }
+
+    // Tests that a single missing required key is detected.
+    $filename = 'core/modules/system/tests/fixtures/missing_key.info.txt';
+    try {
+      $this->infoParser->parse($filename);
+      $this->fail('Expected InfoParserException not thrown when reading missing_key.info.txt');
+    }
+    catch (InfoParserException $e) {
+      $expected_message = 'Missing required key (type) in core/modules/system/tests/fixtures/missing_key.info.txt.';
+      $this->assertEqual($e->getMessage(), $expected_message);
+    }
+
+    $info_values = $this->infoParser->parse('core/modules/system/tests/fixtures/common_test.info.txt');
+    $this->assertEqual($info_values['simple_string'], 'A simple string', 'Simple string value was parsed correctly.', 'System');
+    $this->assertEqual($info_values['version'], \Drupal::VERSION, 'Constant value was parsed correctly.', 'System');
+    $this->assertEqual($info_values['double_colon'], 'dummyClassName::', 'Value containing double-colon was parsed correctly.', 'System');
+  }
+
+}

core/modules/system/system.api.php

@@ -1133,7 +1133,7 @@ function hook_system_theme_info() {
  * This hook is invoked in _system_rebuild_module_data() and in
  * _system_rebuild_theme_data(). A module may implement this hook in order to
  * add to or alter the data generated by reading the .info.yml file with
- * drupal_parse_info_file().
+ * \Drupal\Core\Extension\InfoParser.
  *
  * @param $info
  *   The .info.yml file contents, passed by reference so that it can be altered.

core/modules/system/system.module

@@ -2402,7 +2402,7 @@ function _system_rebuild_module_data() {
     $modules[$key]->filename = $module->uri;
 
     // Look for the info file.
-    $module->info = drupal_parse_info_file(dirname($module->uri) . '/' . $module->name . '.info.yml');
+    $module->info = \Drupal::service('info_parser')->parse(dirname($module->uri) . '/' . $module->name . '.info.yml');
 
     // Skip modules/profiles that don't provide info or have the wrong type.
     if (empty($module->info) || !isset($module->info['type']) || !in_array($module->info['type'], array('module', 'profile'))) {
@@ -2526,7 +2526,7 @@ function _system_rebuild_theme_data() {
   // Read info files for each theme
   foreach ($themes as $key => $theme) {
     $themes[$key]->filename = $theme->uri;
-    $themes[$key]->info = drupal_parse_info_file($theme->uri) + $defaults;
+    $themes[$key]->info = \Drupal::service('info_parser')->parse($theme->uri) + $defaults;
 
     // Skip this extension if its type is not theme.
     if (!isset($themes[$key]->info['type']) || $themes[$key]->info['type'] != 'theme') {

core/modules/system/tests/fixtures/broken.info.txt

+# info.yml for testing broken YAML parsing exception handling.
+name: File
+type: module
+description: 'Defines a file field type.'
+package: Core
+version: VERSION
+core: 8.x
+dependencies::;;
+  - field