changeset 15:e200cb7efeb3

Update Drupal core to 8.5.3 via Composer

--- a/composer.lock	Mon Apr 23 09:46:53 2018 +0100
+++ b/composer.lock	Thu Apr 26 11:26:54 2018 +0100
@@ -781,16 +781,16 @@
         },
         {
             "name": "drupal/core",
-            "version": "8.5.2",
+            "version": "8.5.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/drupal/core.git",
-                "reference": "bc21760d4be4ad117851809183c8d18880ab275a"
+                "reference": "b012f0ae51504880e920f2c6efdbdf03b6fe2129"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/drupal/core/zipball/bc21760d4be4ad117851809183c8d18880ab275a",
-                "reference": "bc21760d4be4ad117851809183c8d18880ab275a",
+                "url": "https://api.github.com/repos/drupal/core/zipball/b012f0ae51504880e920f2c6efdbdf03b6fe2129",
+                "reference": "b012f0ae51504880e920f2c6efdbdf03b6fe2129",
                 "shasum": ""
             },
             "require": {
@@ -1012,7 +1012,7 @@
                 "GPL-2.0-or-later"
             ],
             "description": "Drupal is an open source content management platform powering millions of websites and applications.",
-            "time": "2018-04-18T17:00:56+00:00"
+            "time": "2018-04-25T15:39:01+00:00"
         },
         {
             "name": "drush/drush",
@@ -3541,30 +3541,30 @@
         },
         {
             "name": "zendframework/zend-escaper",
-            "version": "2.5.2",
+            "version": "2.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-escaper.git",
-                "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e"
+                "reference": "31d8aafae982f9568287cb4dce987e6aff8fd074"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-escaper/zipball/2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
-                "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
+                "url": "https://api.github.com/repos/zendframework/zend-escaper/zipball/31d8aafae982f9568287cb4dce987e6aff8fd074",
+                "reference": "31d8aafae982f9568287cb4dce987e6aff8fd074",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "fabpot/php-cs-fixer": "1.7.*",
-                "phpunit/phpunit": "~4.0"
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.2",
+                "zendframework/zend-coding-standard": "~1.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.5-dev",
-                    "dev-develop": "2.6-dev"
+                    "dev-master": "2.6.x-dev",
+                    "dev-develop": "2.7.x-dev"
                 }
             },
             "autoload": {
@@ -3576,12 +3576,13 @@
             "license": [
                 "BSD-3-Clause"
             ],
-            "homepage": "https://github.com/zendframework/zend-escaper",
+            "description": "Securely and safely escape HTML, HTML attributes, JavaScript, CSS, and URLs",
             "keywords": [
+                "ZendFramework",
                 "escaper",
-                "zf2"
-            ],
-            "time": "2016-06-30T19:48:38+00:00"
+                "zf"
+            ],
+            "time": "2018-04-25T15:48:53+00:00"
         },
         {
             "name": "zendframework/zend-feed",

--- a/core/lib/Drupal.php	Mon Apr 23 09:46:53 2018 +0100
+++ b/core/lib/Drupal.php	Thu Apr 26 11:26:54 2018 +0100
@@ -82,7 +82,7 @@
   /**
    * The current system version.
    */
-  const VERSION = '8.5.2';
+  const VERSION = '8.5.3';
 
   /**
    * Core API compatibility.

--- a/core/lib/Drupal/Core/Security/RequestSanitizer.php	Mon Apr 23 09:46:53 2018 +0100
+++ b/core/lib/Drupal/Core/Security/RequestSanitizer.php	Thu Apr 26 11:26:54 2018 +0100
@@ -2,6 +2,8 @@
 
 namespace Drupal\Core\Security;
 
+use Drupal\Component\Utility\UrlHelper;
+use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
@@ -39,28 +41,18 @@
    */
   public static function sanitize(Request $request, $whitelist, $log_sanitized_keys = FALSE) {
     if (!$request->attributes->get(self::SANITIZED, FALSE)) {
-      // Process query string parameters.
-      $get_sanitized_keys = [];
-      $request->query->replace(static::stripDangerousValues($request->query->all(), $whitelist, $get_sanitized_keys));
-      if ($log_sanitized_keys && !empty($get_sanitized_keys)) {
-        trigger_error(sprintf('Potentially unsafe keys removed from query string parameters (GET): %s', implode(', ', $get_sanitized_keys)));
+      $update_globals = FALSE;
+      $bags = [
+        'query' => 'Potentially unsafe keys removed from query string parameters (GET): %s',
+        'request' => 'Potentially unsafe keys removed from request body parameters (POST): %s',
+        'cookies' => 'Potentially unsafe keys removed from cookie parameters: %s',
+      ];
+      foreach ($bags as $bag => $message) {
+        if (static::processParameterBag($request->$bag, $whitelist, $log_sanitized_keys, $bag, $message)) {
+          $update_globals = TRUE;
+        }
       }
-
-      // Request body parameters.
-      $post_sanitized_keys = [];
-      $request->request->replace(static::stripDangerousValues($request->request->all(), $whitelist, $post_sanitized_keys));
-      if ($log_sanitized_keys && !empty($post_sanitized_keys)) {
-        trigger_error(sprintf('Potentially unsafe keys removed from request body parameters (POST): %s', implode(', ', $post_sanitized_keys)));
-      }
-
-      // Cookie parameters.
-      $cookie_sanitized_keys = [];
-      $request->cookies->replace(static::stripDangerousValues($request->cookies->all(), $whitelist, $cookie_sanitized_keys));
-      if ($log_sanitized_keys && !empty($cookie_sanitized_keys)) {
-        trigger_error(sprintf('Potentially unsafe keys removed from cookie parameters: %s', implode(', ', $cookie_sanitized_keys)));
-      }
-
-      if (!empty($get_sanitized_keys) || !empty($post_sanitized_keys) || !empty($cookie_sanitized_keys)) {
+      if ($update_globals) {
         $request->overrideGlobals();
       }
       $request->attributes->set(self::SANITIZED, TRUE);
@@ -69,6 +61,72 @@
   }
 
   /**
+   * Processes a request parameter bag.
+   *
+   * @param \Symfony\Component\HttpFoundation\ParameterBag $bag
+   *   The parameter bag to process.
+   * @param string[] $whitelist
+   *   An array of keys to whitelist as safe.
+   * @param bool $log_sanitized_keys
+   *   Set to TRUE to log keys that are sanitized.
+   * @param string $bag_name
+   *   The request parameter bag name. Either 'query', 'request' or 'cookies'.
+   * @param string $message
+   *   The message to log if the parameter bag contains keys that are removed.
+   *   If the message contains %s that is replaced by a list of removed keys.
+   *
+   * @return bool
+   *   TRUE if the parameter bag has been sanitized, FALSE if not.
+   */
+  protected static function processParameterBag(ParameterBag $bag, $whitelist, $log_sanitized_keys, $bag_name, $message) {
+    $sanitized = FALSE;
+    $sanitized_keys = [];
+    $bag->replace(static::stripDangerousValues($bag->all(), $whitelist, $sanitized_keys));
+    if (!empty($sanitized_keys)) {
+      $sanitized = TRUE;
+      if ($log_sanitized_keys) {
+        trigger_error(sprintf($message, implode(', ', $sanitized_keys)));
+      }
+    }
+
+    if ($bag->has('destination')) {
+      $destination_dangerous_keys = static::checkDestination($bag->get('destination'), $whitelist);
+      if (!empty($destination_dangerous_keys)) {
+        // The destination is removed rather than sanitized because the URL
+        // generator service is not available and this method is called very
+        // early in the bootstrap.
+        $bag->remove('destination');
+        $sanitized = TRUE;
+        if ($log_sanitized_keys) {
+          trigger_error(sprintf('Potentially unsafe destination removed from %s parameter bag because it contained the following keys: %s', $bag_name, implode(', ', $destination_dangerous_keys)));
+        }
+      }
+    }
+    return $sanitized;
+  }
+
+  /**
+   * Checks a destination string to see if it is dangerous.
+   *
+   * @param string $destination
+   *   The destination string to check.
+   * @param array $whitelist
+   *   An array of keys to whitelist as safe.
+   *
+   * @return array
+   *   The dangerous keys found in the destination parameter.
+   */
+  protected static function checkDestination($destination, array $whitelist) {
+    $dangerous_keys = [];
+    $parts = UrlHelper::parse($destination);
+    // If there is a query string, check its query parameters.
+    if (!empty($parts['query'])) {
+      static::stripDangerousValues($parts['query'], $whitelist, $dangerous_keys);
+    }
+    return $dangerous_keys;
+  }
+
+  /**
    * Strips dangerous keys from $input.
    *
    * @param mixed $input

--- a/core/modules/file/src/Element/ManagedFile.php	Mon Apr 23 09:46:53 2018 +0100
+++ b/core/modules/file/src/Element/ManagedFile.php	Thu Apr 26 11:26:54 2018 +0100
@@ -8,6 +8,7 @@
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Ajax\ReplaceCommand;
 use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Render\Element;
 use Drupal\Core\Render\Element\FormElement;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\Url;
@@ -175,6 +176,9 @@
 
     $form_parents = explode('/', $request->query->get('element_parents'));
 
+    // Sanitize form parents before using them.
+    $form_parents = array_filter($form_parents, [Element::class, 'child']);
+
     // Retrieve the element to be rendered.
     $form = NestedArray::getValue($form, $form_parents);
 

--- a/vendor/composer/installed.json	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/composer/installed.json	Thu Apr 26 11:26:54 2018 +0100
@@ -1338,52 +1338,6 @@
         ]
     },
     {
-        "name": "zendframework/zend-escaper",
-        "version": "2.5.2",
-        "version_normalized": "2.5.2.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/zendframework/zend-escaper.git",
-            "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/zendframework/zend-escaper/zipball/2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
-            "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
-            "shasum": ""
-        },
-        "require": {
-            "php": ">=5.5"
-        },
-        "require-dev": {
-            "fabpot/php-cs-fixer": "1.7.*",
-            "phpunit/phpunit": "~4.0"
-        },
-        "time": "2016-06-30T19:48:38+00:00",
-        "type": "library",
-        "extra": {
-            "branch-alias": {
-                "dev-master": "2.5-dev",
-                "dev-develop": "2.6-dev"
-            }
-        },
-        "installation-source": "dist",
-        "autoload": {
-            "psr-4": {
-                "Zend\\Escaper\\": "src/"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "BSD-3-Clause"
-        ],
-        "homepage": "https://github.com/zendframework/zend-escaper",
-        "keywords": [
-            "escaper",
-            "zf2"
-        ]
-    },
-    {
         "name": "zendframework/zend-feed",
         "version": "2.9.0",
         "version_normalized": "2.9.0.0",
@@ -3562,18 +3516,2402 @@
         ]
     },
     {
+        "name": "symfony/css-selector",
+        "version": "v3.4.8",
+        "version_normalized": "3.4.8.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/symfony/css-selector.git",
+            "reference": "519a80d7c1d95c6cc0b67f686d15fe27c6910de0"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/symfony/css-selector/zipball/519a80d7c1d95c6cc0b67f686d15fe27c6910de0",
+            "reference": "519a80d7c1d95c6cc0b67f686d15fe27c6910de0",
+            "shasum": ""
+        },
+        "require": {
+            "php": "^5.5.9|>=7.0.8"
+        },
+        "time": "2018-03-19T22:32:39+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "3.4-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Symfony\\Component\\CssSelector\\": ""
+            },
+            "exclude-from-classmap": [
+                "/Tests/"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Jean-François Simon",
+                "email": "[e-mail]"
+            },
+            {
+                "name": "Fabien Potencier",
+                "email": "[e-mail]"
+            },
+            {
+                "name": "Symfony Community",
+                "homepage": "https://symfony.com/contributors"
+            }
+        ],
+        "description": "Symfony CssSelector Component",
+        "homepage": "https://symfony.com"
+    },
+    {
+        "name": "behat/mink",
+        "version": "dev-master",
+        "version_normalized": "9999999-dev",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/minkphp/Mink.git",
+            "reference": "04ab7af68536ac2c80fd6c08a6fd3620d3409891"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/minkphp/Mink/zipball/04ab7af68536ac2c80fd6c08a6fd3620d3409891",
+            "reference": "04ab7af68536ac2c80fd6c08a6fd3620d3409891",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.1",
+            "symfony/css-selector": "^2.7|^3.0|^4.0"
+        },
+        "require-dev": {
+            "symfony/phpunit-bridge": "^3.3|^4.0"
+        },
+        "suggest": {
+            "behat/mink-browserkit-driver": "extremely fast headless driver for Symfony\\Kernel-based apps (Sf2, Silex)",
+            "behat/mink-goutte-driver": "fast headless driver for any app without JS emulation",
+            "behat/mink-selenium2-driver": "slow, but JS-enabled driver for any app (requires Selenium2)",
+            "behat/mink-zombie-driver": "fast and JS-enabled headless driver for any app (requires node.js)"
+        },
+        "time": "2018-01-07T17:25:05+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.7.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Behat\\Mink\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Konstantin Kudryashov",
+                "email": "[e-mail]",
+                "homepage": "http://everzet.com"
+            }
+        ],
+        "description": "Browser controller/emulator abstraction for PHP",
+        "homepage": "http://mink.behat.org/",
+        "keywords": [
+            "browser",
+            "testing",
+            "web"
+        ]
+    },
+    {
+        "name": "instaclick/php-webdriver",
+        "version": "1.4.5",
+        "version_normalized": "1.4.5.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/instaclick/php-webdriver.git",
+            "reference": "6fa959452e774dcaed543faad3a9d1a37d803327"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/instaclick/php-webdriver/zipball/6fa959452e774dcaed543faad3a9d1a37d803327",
+            "reference": "6fa959452e774dcaed543faad3a9d1a37d803327",
+            "shasum": ""
+        },
+        "require": {
+            "ext-curl": "*",
+            "php": ">=5.3.2"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "^4.8",
+            "satooshi/php-coveralls": "^1.0||^2.0"
+        },
+        "time": "2017-06-30T04:02:48+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.4.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "WebDriver": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "Apache-2.0"
+        ],
+        "authors": [
+            {
+                "name": "Justin Bishop",
+                "email": "[e-mail]",
+                "role": "Developer"
+            },
+            {
+                "name": "Anthon Pang",
+                "email": "[e-mail]",
+                "role": "Fork Maintainer"
+            }
+        ],
+        "description": "PHP WebDriver for Selenium 2",
+        "homepage": "http://instaclick.com/",
+        "keywords": [
+            "browser",
+            "selenium",
+            "webdriver",
+            "webtest"
+        ]
+    },
+    {
+        "name": "behat/mink-selenium2-driver",
+        "version": "dev-master",
+        "version_normalized": "9999999-dev",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/minkphp/MinkSelenium2Driver.git",
+            "reference": "93474c65a2a7bf959200ab5f7a14cc450645c185"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/minkphp/MinkSelenium2Driver/zipball/93474c65a2a7bf959200ab5f7a14cc450645c185",
+            "reference": "93474c65a2a7bf959200ab5f7a14cc450645c185",
+            "shasum": ""
+        },
+        "require": {
+            "behat/mink": "~1.7@dev",
+            "instaclick/php-webdriver": "~1.1",
+            "php": ">=5.3.1"
+        },
+        "require-dev": {
+            "mink/driver-testsuite": "dev-master"
+        },
+        "time": "2018-01-07T19:17:08+00:00",
+        "type": "mink-driver",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.3.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Behat\\Mink\\Driver\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Konstantin Kudryashov",
+                "email": "[e-mail]",
+                "homepage": "http://everzet.com"
+            },
+            {
+                "name": "Pete Otaqui",
+                "email": "[e-mail]",
+                "homepage": "https://github.com/pete-otaqui"
+            }
+        ],
+        "description": "Selenium2 (WebDriver) driver for Mink framework",
+        "homepage": "http://mink.behat.org/",
+        "keywords": [
+            "ajax",
+            "browser",
+            "javascript",
+            "selenium",
+            "testing",
+            "webdriver"
+        ]
+    },
+    {
+        "name": "squizlabs/php_codesniffer",
+        "version": "2.9.1",
+        "version_normalized": "2.9.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
+            "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/dcbed1074f8244661eecddfc2a675430d8d33f62",
+            "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62",
+            "shasum": ""
+        },
+        "require": {
+            "ext-simplexml": "*",
+            "ext-tokenizer": "*",
+            "ext-xmlwriter": "*",
+            "php": ">=5.1.2"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "~4.0"
+        },
+        "time": "2017-05-22T02:43:20+00:00",
+        "bin": [
+            "scripts/phpcs",
+            "scripts/phpcbf"
+        ],
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "2.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "classmap": [
+                "CodeSniffer.php",
+                "CodeSniffer/CLI.php",
+                "CodeSniffer/Exception.php",
+                "CodeSniffer/File.php",
+                "CodeSniffer/Fixer.php",
+                "CodeSniffer/Report.php",
+                "CodeSniffer/Reporting.php",
+                "CodeSniffer/Sniff.php",
+                "CodeSniffer/Tokens.php",
+                "CodeSniffer/Reports/",
+                "CodeSniffer/Tokenizers/",
+                "CodeSniffer/DocGenerators/",
+                "CodeSniffer/Standards/AbstractPatternSniff.php",
+                "CodeSniffer/Standards/AbstractScopeSniff.php",
+                "CodeSniffer/Standards/AbstractVariableSniff.php",
+                "CodeSniffer/Standards/IncorrectPatternException.php",
+                "CodeSniffer/Standards/Generic/Sniffs/",
+                "CodeSniffer/Standards/MySource/Sniffs/",
+                "CodeSniffer/Standards/PEAR/Sniffs/",
+                "CodeSniffer/Standards/PSR1/Sniffs/",
+                "CodeSniffer/Standards/PSR2/Sniffs/",
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--- a/vendor/zendframework/zend-escaper/CHANGELOG.md	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/zendframework/zend-escaper/CHANGELOG.md	Thu Apr 26 11:26:54 2018 +0100
@@ -2,6 +2,31 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
+## 2.6.0 - 2018-04-25
+
+### Added
+
+- [#28](https://github.com/zendframework/zend-escaper/pull/28) adds support for PHP 7.1 and 7.2.
+
+### Changed
+
+- [#25](https://github.com/zendframework/zend-escaper/pull/25) changes the behavior of the `Escaper` constructor; it now raises an
+  exception for non-null, non-string `$encoding` arguments.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- [#28](https://github.com/zendframework/zend-escaper/pull/28) removes support for PHP 5.5.
+
+- [#28](https://github.com/zendframework/zend-escaper/pull/28) removes support for HHVM.
+
+### Fixed
+
+- Nothing.
+
 ## 2.5.2 - 2016-06-30
 
 ### Added

--- a/vendor/zendframework/zend-escaper/CONDUCT.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,43 +0,0 @@
-# Contributor Code of Conduct
-
-The Zend Framework project adheres to [The Code Manifesto](http://codemanifesto.com)
-as its guidelines for contributor interactions.
-
-## The Code Manifesto
-
-We want to work in an ecosystem that empowers developers to reach their
-potential — one that encourages growth and effective collaboration. A space that
-is safe for all.
-
-A space such as this benefits everyone that participates in it. It encourages
-new developers to enter our field. It is through discussion and collaboration
-that we grow, and through growth that we improve.
-
-In the effort to create such a place, we hold to these values:
-
-1. **Discrimination limits us.** This includes discrimination on the basis of
-   race, gender, sexual orientation, gender identity, age, nationality, technology
-   and any other arbitrary exclusion of a group of people.
-2. **Boundaries honor us.** Your comfort levels are not everyone’s comfort
-   levels. Remember that, and if brought to your attention, heed it.
-3. **We are our biggest assets.** None of us were born masters of our trade.
-   Each of us has been helped along the way. Return that favor, when and where
-   you can.
-4. **We are resources for the future.** As an extension of #3, share what you
-   know. Make yourself a resource to help those that come after you.
-5. **Respect defines us.** Treat others as you wish to be treated. Make your
-   discussions, criticisms and debates from a position of respectfulness. Ask
-   yourself, is it true? Is it necessary? Is it constructive? Anything less is
-   unacceptable.
-6. **Reactions require grace.** Angry responses are valid, but abusive language
-   and vindictive actions are toxic. When something happens that offends you,
-   handle it assertively, but be respectful. Escalate reasonably, and try to
-   allow the offender an opportunity to explain themselves, and possibly correct
-   the issue.
-7. **Opinions are just that: opinions.** Each and every one of us, due to our
-   background and upbringing, have varying opinions. The fact of the matter, is
-   that is perfectly acceptable. Remember this: if you respect your own
-   opinions, you should respect the opinions of others.
-8. **To err is human.** You might not intend it, but mistakes do happen and
-   contribute to build experience. Tolerate honest mistakes, and don't hesitate
-   to apologize if you make one yourself.

--- a/vendor/zendframework/zend-escaper/CONTRIBUTING.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,234 +0,0 @@
-# CONTRIBUTING
-
-## RESOURCES
-
-If you wish to contribute to Zend Framework, please be sure to
-read/subscribe to the following resources:
-
- -  [Coding Standards](https://github.com/zendframework/zf2/wiki/Coding-Standards)
- -  [Contributor's Guide](http://framework.zend.com/participate/contributor-guide)
- -  ZF Contributor's mailing list:
-    Archives: http://zend-framework-community.634137.n4.nabble.com/ZF-Contributor-f680267.html
-    Subscribe: [e-mail]
- -  ZF Contributor's IRC channel:
-    #zftalk.dev on Freenode.net
-
-If you are working on new features or refactoring [create a proposal](https://github.com/zendframework/zend-escaper/issues/new).
-
-## Reporting Potential Security Issues
-
-If you have encountered a potential security vulnerability, please **DO NOT** report it on the public
-issue tracker: send it to us at [[e-mail]](mailto:[e-mail]) instead.
-We will work with you to verify the vulnerability and patch it as soon as possible.
-
-When reporting issues, please provide the following information:
-
-- Component(s) affected
-- A description indicating how to reproduce the issue
-- A summary of the security vulnerability and impact
-
-We request that you contact us via the email address above and give the project
-contributors a chance to resolve the vulnerability and issue a new release prior
-to any public exposure; this helps protect users and provides them with a chance
-to upgrade and/or update in order to protect their applications.
-
-For sensitive email communications, please use [our PGP key](http://framework.zend.com/zf-security-pgp-key.asc).
-
-## RUNNING TESTS
-
-> ### Note: testing versions prior to 2.4
->
-> This component originates with Zend Framework 2. During the lifetime of ZF2,
-> testing infrastructure migrated from PHPUnit 3 to PHPUnit 4. In most cases, no
-> changes were necessary. However, due to the migration, tests may not run on
-> versions < 2.4. As such, you may need to change the PHPUnit dependency if
-> attempting a fix on such a version.
-
-To run tests:
-
-- Clone the repository:
-
-  ```console
-  $ git clone [e-mail]:zendframework/zend-escaper.git
-  $ cd
-  ```
-
-- Install dependencies via composer:
-
-  ```console
-  $ curl -sS https://getcomposer.org/installer | php --
-  $ ./composer.phar install
-  ```
-
-  If you don't have `curl` installed, you can also download `composer.phar` from https://getcomposer.org/
-
-- Run the tests via `phpunit` and the provided PHPUnit config, like in this example:
-
-  ```console
-  $ ./vendor/bin/phpunit
-  ```
-
-You can turn on conditional tests with the phpunit.xml file.
-To do so:
-
- -  Copy `phpunit.xml.dist` file to `phpunit.xml`
- -  Edit `phpunit.xml` to enable any specific functionality you
-    want to test, as well as to provide test values to utilize.
-
-## Running Coding Standards Checks
-
-This component uses [php-cs-fixer](http://cs.sensiolabs.org/) for coding
-standards checks, and provides configuration for our selected checks.
-`php-cs-fixer` is installed by default via Composer.
-
-To run checks only:
-
-```console
-$ ./vendor/bin/php-cs-fixer fix . -v --diff --dry-run --config-file=.php_cs
-```
-
-To have `php-cs-fixer` attempt to fix problems for you, omit the `--dry-run`
-flag:
-
-```console
-$ ./vendor/bin/php-cs-fixer fix . -v --diff --config-file=.php_cs
-```
-
-If you allow php-cs-fixer to fix CS issues, please re-run the tests to ensure
-they pass, and make sure you add and commit the changes after verification.
-
-## Recommended Workflow for Contributions
-
-Your first step is to establish a public repository from which we can
-pull your work into the master repository. We recommend using
-[GitHub](https://github.com), as that is where the component is already hosted.
-
-1. Setup a [GitHub account](http://github.com/), if you haven't yet
-2. Fork the repository (http://github.com/zendframework/zend-escaper)
-3. Clone the canonical repository locally and enter it.
-
-   ```console
-   $ git clone git://github.com:zendframework/zend-escaper.git
-   $ cd zend-escaper
-   ```
-
-4. Add a remote to your fork; substitute your GitHub username in the command
-   below.
-
-   ```console
-   $ git remote add {username} [e-mail]:{username}/zend-escaper.git
-   $ git fetch {username}
-   ```
-
-### Keeping Up-to-Date
-
-Periodically, you should update your fork or personal repository to
-match the canonical ZF repository. Assuming you have setup your local repository
-per the instructions above, you can do the following:
-
-
-```console
-$ git checkout master
-$ git fetch origin
-$ git rebase origin/master
-# OPTIONALLY, to keep your remote up-to-date -
-$ git push {username} master:master
-```
-
-If you're tracking other branches -- for example, the "develop" branch, where
-new feature development occurs -- you'll want to do the same operations for that
-branch; simply substitute  "develop" for "master".
-
-### Working on a patch
-
-We recommend you do each new feature or bugfix in a new branch. This simplifies
-the task of code review as well as the task of merging your changes into the
-canonical repository.
-
-A typical workflow will then consist of the following:
-
-1. Create a new local branch based off either your master or develop branch.
-2. Switch to your new local branch. (This step can be combined with the
-   previous step with the use of `git checkout -b`.)
-3. Do some work, commit, repeat as necessary.
-4. Push the local branch to your remote repository.
-5. Send a pull request.
-
-The mechanics of this process are actually quite trivial. Below, we will
-create a branch for fixing an issue in the tracker.
-
-```console
-$ git checkout -b hotfix/9295
-Switched to a new branch 'hotfix/9295'
-```
-
-... do some work ...
-
-
-```console
-$ git commit
-```
-
-... write your log message ...
-
-
-```console
-$ git push {username} hotfix/9295:hotfix/9295
-Counting objects: 38, done.
-Delta compression using up to 2 threads.
-Compression objects: 100% (18/18), done.
-Writing objects: 100% (20/20), 8.19KiB, done.
-Total 20 (delta 12), reused 0 (delta 0)
-To ssh://[e-mail]/{username}/zend-escaper.git
-   b5583aa..4f51698  HEAD -> master
-```
-
-To send a pull request, you have two options.
-
-If using GitHub, you can do the pull request from there. Navigate to
-your repository, select the branch you just created, and then select the
-"Pull Request" button in the upper right. Select the user/organization
-"zendframework" as the recipient.
-
-If using your own repository - or even if using GitHub - you can use `git
-format-patch` to create a patchset for us to apply; in fact, this is
-**recommended** for security-related patches. If you use `format-patch`, please
-send the patches as attachments to:
-
--  [e-mail] for patches without security implications
--  [e-mail] for security patches
-
-#### What branch to issue the pull request against?
-
-Which branch should you issue a pull request against?
-
-- For fixes against the stable release, issue the pull request against the
-  "master" branch.
-- For new features, or fixes that introduce new elements to the public API (such
-  as new public methods or properties), issue the pull request against the
-  "develop" branch.
-
-### Branch Cleanup
-
-As you might imagine, if you are a frequent contributor, you'll start to
-get a ton of branches both locally and on your remote.
-
-Once you know that your changes have been accepted to the master
-repository, we suggest doing some cleanup of these branches.
-
--  Local branch cleanup
-
-   ```console
-   $ git branch -d <branchname>
-   ```
-
--  Remote branch removal
-
-   ```console
-   $ git push {username} :<branchname>
-   ```
-
-
-## Conduct
-
-Please see our [CONDUCT.md](CONDUCT.md) to understand expected behavior when interacting with others in the project.

--- a/vendor/zendframework/zend-escaper/LICENSE.md	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/zendframework/zend-escaper/LICENSE.md	Thu Apr 26 11:26:54 2018 +0100
@@ -1,16 +1,15 @@
-Copyright (c) 2005-2015, Zend Technologies USA, Inc.
-
+Copyright (c) 2005-2018, Zend Technologies USA, Inc.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,
 are permitted provided that the following conditions are met:
 
-- Redistributions of source code must retain the above copyright notice,
-  this list of conditions and the following disclaimer.
+- Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
 
-- Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
+- Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
 
 - Neither the name of Zend Technologies USA, Inc. nor the names of its
   contributors may be used to endorse or promote products derived from this

--- a/vendor/zendframework/zend-escaper/README.md	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/zendframework/zend-escaper/README.md	Thu Apr 26 11:26:54 2018 +0100
@@ -1,7 +1,7 @@
 # zend-escaper
 
 [![Build Status](https://secure.travis-ci.org/zendframework/zend-escaper.svg?branch=master)](https://secure.travis-ci.org/zendframework/zend-escaper)
-[![Coverage Status](https://coveralls.io/repos/zendframework/zend-escaper/badge.svg?branch=master)](https://coveralls.io/r/zendframework/zend-escaper?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/zendframework/zend-escaper/badge.svg?branch=master)](https://coveralls.io/github/zendframework/zend-escaper?branch=master)
 
 The OWASP Top 10 web security risks study lists Cross-Site Scripting (XSS) in
 second place. PHP’s sole functionality against XSS is limited to two functions
@@ -10,4 +10,4 @@
 vulnerabilities by introducing contextual escaping based on peer-reviewed rules.
 
 - File issues at https://github.com/zendframework/zend-escaper/issues
-- Documentation is at https://zendframework.github.io/zend-escaper/
+- Documentation is at https://docs.zendframework.com/zend-escaper/

--- a/vendor/zendframework/zend-escaper/composer.json	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/zendframework/zend-escaper/composer.json	Thu Apr 26 11:26:54 2018 +0100
@@ -1,35 +1,54 @@
 {
     "name": "zendframework/zend-escaper",
-    "description": " ",
+    "description": "Securely and safely escape HTML, HTML attributes, JavaScript, CSS, and URLs",
     "license": "BSD-3-Clause",
     "keywords": [
-        "zf2",
+        "zf",
+        "zendframework",
         "escaper"
     ],
-    "homepage": "https://github.com/zendframework/zend-escaper",
+    "support": {
+        "docs": "https://docs.zendframework.com/zend-escaper/",
+        "issues": "https://github.com/zendframework/zend-escaper/issues",
+        "source": "https://github.com/zendframework/zend-escaper",
+        "rss": "https://github.com/zendframework/zend-escaper/releases.atom",
+        "chat": "https://zendframework-slack.herokuapp.com",
+        "forum": "https://discourse.zendframework.com/c/questions/components"
+    },
+    "require": {
+        "php": "^5.6 || ^7.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.2",
+        "zendframework/zend-coding-standard": "~1.0.0"
+    },
     "autoload": {
         "psr-4": {
             "Zend\\Escaper\\": "src/"
         }
     },
-    "require": {
-        "php": ">=5.5"
-    },
-    "minimum-stability": "dev",
-    "prefer-stable": true,
-    "extra": {
-        "branch-alias": {
-            "dev-master": "2.5-dev",
-            "dev-develop": "2.6-dev"
-        }
-    },
     "autoload-dev": {
         "psr-4": {
             "ZendTest\\Escaper\\": "test/"
         }
     },
-    "require-dev": {
-        "fabpot/php-cs-fixer": "1.7.*",
-        "phpunit/PHPUnit": "~4.0"
+    "config": {
+        "sort-packages": true
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.6.x-dev",
+            "dev-develop": "2.7.x-dev"
+        }
+    },
+    "scripts": {
+        "check": [
+            "@cs-check",
+            "@test"
+        ],
+        "cs-check": "phpcs",
+        "cs-fix": "phpcbf",
+        "test": "phpunit --colors=always",
+        "test-coverage": "phpunit --colors=always --coverage-clover clover.xml"
     }
 }

--- a/vendor/zendframework/zend-escaper/doc/book/configuration.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,21 +0,0 @@
-# Configuration
-
-`Zend\Escaper\Escaper` has only one configuration option available, and that is
-the encoding to be used by the `Escaper` instance.
-
-The default encoding is **utf-8**. Other supported encodings are:
-
-- iso-8859-1
-- iso-8859-5
-- iso-8859-15
-- cp866, ibm866, 866
-- cp1251, windows-1251
-- cp1252, windows-1252
-- koi8-r, koi8-ru
-- big5, big5-hkscs, 950, gb2312, 936
-- shift\_jis, sjis, sjis-win, cp932
-- eucjp, eucjp-win
-- macroman
-
-If an unsupported encoding is passed to `Zend\Escaper\Escaper`, a
-`Zend\Escaper\Exception\InvalidArgumentException` will be thrown.

--- a/vendor/zendframework/zend-escaper/doc/book/escaping-css.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-# Escaping Cascading Style Sheets
-
-CSS is similar to [escaping Javascript](escaping-javascript.md).  CSS escaping
-excludes only basic alphanumeric characters and escapes all other characters
-into valid CSS hexadecimal escapes.
-
-## Example of Bad CSS Escaping
-
-In most cases developers forget to escape CSS completely:
-
-```php
-<?php header('Content-Type: application/xhtml+xml; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-body {
-    background-image: url('http://example.com/foo.jpg?</style><script>alert(1)</script>');
-}
-INPUT;
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Unescaped CSS</title>
-    <meta charset="UTF-8"/>
-    <style>
-    <?= $input ?>
-    </style>
-</head>
-<body>
-    <p>User controlled CSS needs to be properly escaped!</p>
-</body>
-</html>
-```
-
-In the above example, by failing to escape the user provided CSS, an attacker
-can execute an XSS attack fairly easily.
-
-## Example of Good CSS Escaping
-
-By using `escapeCss()` method in the CSS context, such attacks can be prevented:
-
-```php
-<?php header('Content-Type: application/xhtml+xml; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-body {
-    background-image: url('http://example.com/foo.jpg?</style><script>alert(1)</script>');
-}
-INPUT;
-
-$escaper = new Zend\Escaper\Escaper('utf-8');
-$output = $escaper->escapeCss($input);
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Escaped CSS</title>
-    <meta charset="UTF-8"/>
-    <style>
-    <?php
-    // output will look something like
-    // body\20 \7B \A \20 \20 \20 \20 background\2D image\3A \20 url\28 ...
-    echo $output;
-    ?>
-    </style>
-</head>
-<body>
-    <p>User controlled CSS needs to be properly escaped!</p>
-</body>
-</html>
-```
-
-By properly escaping user controlled CSS, we can prevent XSS attacks in our web
-applications.

--- a/vendor/zendframework/zend-escaper/doc/book/escaping-html-attributes.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,128 +0,0 @@
-# Escaping HTML Attributes
-
-Escaping data in **HTML Attribute** contexts is most often done incorrectly, if
-not overlooked completely by developers. Regular [HTML
-escaping](escaping-html.md) can be used for escaping HTML attributes *only* if
-the attribute value can be **guaranteed as being properly quoted**! To avoid
-confusion, we recommend always using the HTML Attribute escaper method when
-dealing with HTTP attributes specifically.
-
-To escape data for an HTML Attribute, use `Zend\Escaper\Escaper`'s
-`escapeHtmlAttr()` method.  Internally it will convert the data to UTF-8, check
-for its validity, and use an extended set of characters to escape that are not
-covered by `htmlspecialchars()` to cover the cases where an attribute might be
-unquoted or quoted illegally.
-
-## Examples of Bad HTML Attribute Escaping
-
-An example of incorrect HTML attribute escaping:
-
-```php
-<?php header('Content-Type: text/html; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-' onmouseover='alert(/ZF2!/);
-INPUT;
-
-/**
- * NOTE: This is equivalent to using htmlspecialchars($input, ENT_COMPAT)
- */
-$output = htmlspecialchars($input);
-?>
-<html>
-<head>
-    <title>Single Quoted Attribute</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-</head>
-<body>
-    <div>
-        <?php 
-        // the span tag will look like:
-        // <span title='' onmouseover='alert(/ZF2!/);'>
-        ?>
-        <span title='<?= $output ?>'>
-            What framework are you using?
-        </span>
-    </div>
-</body>
-</html>
-```
-
-In the above example, the default `ENT_COMPAT` flag is being used, which does
-not escape single quotes, thus resulting in an alert box popping up when the
-`onmouseover` event happens on the `span` element.
-
-Another example of incorrect HTML attribute escaping can happen when unquoted
-attributes are used (which is, by the way, perfectly valid HTML5):
-
-```php
-<?php header('Content-Type: text/html; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-faketitle onmouseover=alert(/ZF2!/);
-INPUT;
-
-// Tough luck using proper flags when the title attribute is unquoted!
-$output = htmlspecialchars($input, ENT_QUOTES);
-?>
-<html>
-<head>
-    <title>Quoteless Attribute</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-</head>
-<body>
-    <div>
-        <?php 
-        // the span tag will look like:
-        // <span title=faketitle onmouseover=alert(/ZF2!/);>
-        ?>
-        <span title=<?= $output ?>>
-            What framework are you using?
-        </span>
-    </div>
-</body>
-</html>
-```
-
-The above example shows how it is easy to break out from unquoted attributes in
-HTML5.
-
-## Example of Good HTML Attribute Escaping
-
-Both of the previous examples can be avoided by simply using the
-`escapeHtmlAttr()` method:
-
-```php
-<?php header('Content-Type: text/html; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-faketitle onmouseover=alert(/ZF2!/);
-INPUT;
-
-$escaper = new Zend\Escaper\Escaper('utf-8');
-$output = $escaper->escapeHtmlAttr($input);
-?>
-<html>
-<head>
-    <title>Quoteless Attribute</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-</head>
-<body>
-    <div>
-        <?php 
-        // the span tag will look like:
-        // <span title=faketitle&#x20;onmouseover&#x3D;alert&#x28;&#x2F;ZF2&#x21;&#x2F;&#x29;&#x3B;>
-        ?>
-        <span title=<?= $output ?>>
-            What framework are you using?
-        </span>
-    </div>
-</body>
-</html>
-```
-
-In the above example, the malicious input from the attacker becomes completely
-harmless as we used proper HTML attribute escaping!

--- a/vendor/zendframework/zend-escaper/doc/book/escaping-html.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-# Escaping HTML
-
-Probably the most common escaping happens for **HTML body** contexts. There are
-very few characters with special meaning in this context, yet it is quite common
-to escape data incorrectly, namely by setting the wrong flags and character
-encoding.
-
-For escaping data to use within an HTML body context, use
-`Zend\Escaper\Escaper`'s `escapeHtml()` method.  Internally it uses PHP's
-`htmlspecialchars()`, correctly setting the flags and encoding for you.
-
-```php
-// Outputting this without escaping would be a bad idea!
-$input = '<script>alert("zf2")</script>';
-
-$escaper = new Zend\Escaper\Escaper('utf-8');
-
-// somewhere in an HTML template
-<div class="user-provided-input">
-    <?= $escaper->escapeHtml($input) // all safe! ?>
-</div>
-```
-
-One thing a developer needs to pay special attention to is the encoding in which
-the document is served to the client, as it **must be the same** as the encoding
-used for escaping!
-
-## Example of Bad HTML Escaping
-
-An example of incorrect usage:
-
-```php
-<?php
-$input = '<script>alert("zf2")</script>';
-$escaper = new Zend\Escaper\Escaper('utf-8');
-?>
-<?php header('Content-Type: text/html; charset=ISO-8859-1'); ?>
-<!DOCTYPE html>
-<html>
-<head>
-    <title>Encodings set incorrectly!</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-</head>
-<body>
-<?php 
-    // Bad! The escaper's and the document's encodings are different!
-    echo $escaper->escapeHtml($input);
-?>
-</body>
-```
-
-## Example of Good HTML Escaping
-
-An example of correct usage:
-
-```php
-<?php
-$input = '<script>alert("zf2")</script>';
-$escaper = new Zend\Escaper\Escaper('utf-8');
-?>
-<?php header('Content-Type: text/html; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<html>
-<head>
-    <title>Encodings set correctly!</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-</head>
-<body>
-<?php 
-    // Good! The escaper's and the document's encodings are same!
-    echo $escaper->escapeHtml($input);
-?>
-</body>
-```

--- a/vendor/zendframework/zend-escaper/doc/book/escaping-javascript.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-# Escaping Javascript
-
-Javascript string literals in HTML are subject to significant restrictions due
-to the potential for unquoted attributes and uncertainty as to whether
-Javascript will be viewed as being `CDATA` or `PCDATA` by the browser. To
-eliminate any possible XSS vulnerabilities, Javascript escaping for HTML extends
-the escaping rules of both ECMAScript and JSON to include any potentially
-dangerous character. Very similar to HTML attribute value escaping, this means
-escaping everything except basic alphanumeric characters and the comma, period,
-and underscore characters as hexadecimal or unicode escapes.
-
-Javascript escaping applies to all literal strings and digits. It is not
-possible to safely escape other Javascript markup.
-
-To escape data in the **Javascript context**, use `Zend\Escaper\Escaper`'s
-`escapeJs()` method. An extended set of characters are escaped beyond
-ECMAScript's rules for Javascript literal string escaping in order to prevent
-misinterpretation of Javascript as HTML leading to the injection of special
-characters and entities.
-
-## Example of Bad Javascript Escaping
-
-An example of incorrect Javascript escaping:
-
-```php
-<?php header('Content-Type: application/xhtml+xml; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-bar&quot;; alert(&quot;Meow!&quot;); var xss=&quot;true
-INPUT;
-
-$output = json_encode($input);
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Unescaped Entities</title>
-    <meta charset="UTF-8"/>
-    <script type="text/javascript">
-        <?php
-        // this will result in
-        // var foo = "bar&quot;; alert(&quot;Meow!&quot;); var xss=&quot;true";
-        ?>
-        var foo = <?= $output ?>;
-    </script>
-</head>
-<body>
-    <p>json_encode() is not good for escaping javascript!</p>
-</body>
-</html>
-```
-
-The above example will show an alert popup box as soon as the page is loaded,
-because the data is not properly escaped for the Javascript context.
-
-## Example of Good Javascript Escaping
-
-By using the `escapeJs()` method in the Javascript context, such attacks can be
-prevented:
-
-```php
-<?php header('Content-Type: text/html; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-bar&quot;; alert(&quot;Meow!&quot;); var xss=&quot;true
-INPUT;
-
-$escaper = new Zend\Escaper\Escaper('utf-8');
-$output = $escaper->escapeJs($input);
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Escaped Entities</title>
-    <meta charset="UTF-8"/>
-    <script type="text/javascript">
-        <?php
-        // this will look like
-        // var foo =
-bar\x26quot\x3B\x3B\x20alert\x28\x26quot\x3BMeow\x21\x26quot\x3B\x29\x3B\x20var\x20xss\x3D\x26quot\x3Btrue;
-        ?>
-        var foo = <?= $output ?>;
-    </script>
-</head>
-<body>
-    <p>Zend\Escaper\Escaper::escapeJs() is good for escaping javascript!</p>
-</body>
-</html>
-```
-
-In the above example, the Javascript parser will most likely report a
-`SyntaxError`, but at least the targeted application remains safe from such
-attacks.

--- a/vendor/zendframework/zend-escaper/doc/book/escaping-url.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,57 +0,0 @@
-# Escaping URLs
-
-This method is basically an alias for PHP's `rawurlencode()` which has applied
-RFC 3986 since PHP 5.3. It is included primarily for consistency.
-
-URL escaping applies to data being inserted into a URL and not to the whole URL
-itself.
-
-## Example of Bad URL Escaping
-
-XSS attacks are easy if data inserted into URLs is not escaped properly:
-
-```php
-<?php header('Content-Type: application/xhtml+xml; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-" onmouseover="alert('zf2')
-INPUT;
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Unescaped URL data</title>
-    <meta charset="UTF-8"/>
-</head>
-<body>
-    <a href="http://example.com/?name=<?= $input ?>">Click here!</a>
-</body>
-</html>
-```
-
-## Example of Good URL Escaping
-
-By properly escaping data in URLs by using `escapeUrl()`, we can prevent XSS
-attacks:
-
-```php
-<?php header('Content-Type: application/xhtml+xml; charset=UTF-8'); ?>
-<!DOCTYPE html>
-<?php
-$input = <<<INPUT
-" onmouseover="alert('zf2')
-INPUT;
-
-$escaper = new Zend\Escaper\Escaper('utf-8');
-$output = $escaper->escapeUrl($input);
-?>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-    <title>Unescaped URL data</title>
-    <meta charset="UTF-8"/>
-</head>
-<body>
-    <a href="http://example.com/?name=<?= $output ?>">Click here!</a>
-</body>
-</html>
-```

--- a/vendor/zendframework/zend-escaper/doc/book/index.html	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-<div class="container">
-  <div class="jumbotron">
-    <h1>zend-escaper</h1>
-    
-    <p>Securely and safely escape HTML, HTML attributes, JavaScript, CSS, and URLs.</p>
-
-    <pre><code class="language-bash">$ composer require zendframework/zend-escaper</code></pre>
-  </div>
-</div>
-

--- a/vendor/zendframework/zend-escaper/doc/book/index.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-../../README.md
\ No newline at end of file

--- a/vendor/zendframework/zend-escaper/doc/book/intro.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,51 +0,0 @@
-# Introduction
-
-The [OWASP Top 10 web security risks](https://www.owasp.org/index.php/Top_10_2010-Main)
-study lists Cross-Site Scripting (XSS) in second place. PHP's sole functionality
-against XSS is limited to two functions of which one is commonly misapplied.
-Thus, the zend-escaper component was written. It offers developers a way to
-escape output and defend from XSS and related vulnerabilities by introducing
-**contextual escaping based on peer-reviewed rules**.
-
-zend-escaper was written with ease of use in mind, so it can be used completely stand-alone from
-the rest of the framework, and as such can be installed with Composer:
-
-```bash
-$ composer install zendframework/zend-escaper
-```
-
-Several Zend Framework components provide integrations for consuming
-zend-escaper, including [zend-view](https://github.com/zendframework/zend-view),
-which provides a set of helpers that consume it.
-
-> ### Security
->
-> zend-escaper is a security related component. As such, if you believe you have
-> found an issue, we ask that you follow our [Security  Policy](http://framework.zend.com/security/)
-> and report security issues accordingly. The Zend Framework team and the
-> contributors thank you in advance.
-
-## Overview
-
-zend-escaper provides one class, `Zend\Escaper\Escaper`, which in turn provides
-five methods for escaping output. Which method to use  depends on the context in
-which the output is used. It is up to the developer to use the right methods in
-the right context.
-
-`Zend\Escaper\Escaper` has the following escaping methods available for each context:
-
-- `escapeHtml`: escape a string for an HTML body context.
-- `escapeHtmlAttr`: escape a string for an HTML attribute context.
-- `escapeJs`: escape a string for a Javascript context.
-- `escapeCss`: escape a string for a CSS context.
-- `escapeUrl`: escape a string for a URI or URI parameter context.
-
-Usage of each method will be discussed in detail in later chapters.
-
-## What zend-Escaper is not
-
-zend-escaper is meant to be used only for *escaping data for output*, and as
-such should not be misused for *filtering input data*. For such tasks, use
-[zend-filter](https://zendframework.github.io/zend-filter/),
-[HTMLPurifier](http://htmlpurifier.org/) or PHP's
-[Filter](http://php.net/filter) functionality should be used.

--- a/vendor/zendframework/zend-escaper/doc/book/theory-of-operation.md	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,147 +0,0 @@
-# Theory of Operation
-
-zend-escaper provides methods for escaping output data, dependent on the context
-in which the data will be used. Each method is based on peer-reviewed rules and
-is in compliance with the current OWASP recommendations.
-
-The escaping follows a well-known and fixed set of encoding rules defined by
-OWASP for each key HTML context.  These rules cannot be impacted or negated by
-browser quirks or edge-case HTML parsing unless the browser suffers a
-catastrophic bug in its HTML parser or Javascript interpreter — both of
-these are unlikely.
-
-The contexts in which zend-escaper should be used are **HTML Body**, **HTML
-Attribute**, **Javascript**, **CSS**, and **URL/URI** contexts.
-
-Every escaper method will take the data to be escaped, make sure it is utf-8
-encoded data (or try to convert it to utf-8), perform context-based escaping,
-encode the escaped data back to its original encoding, and return the data to
-the caller.
-
-The actual escaping of the data differs between each method; they all have their
-own set of rules according to which escaping is performed. An example will allow
-us to clearly demonstrate the difference, and how the same characters are being
-escaped differently between contexts:
-
-```php
-$escaper = new Zend\Escaper\Escaper('utf-8');
-
-// <script>alert("zf2")</script>
-echo $escaper->escapeHtml('<script>alert("zf2")</script>');
-
-// &lt;script&gt;alert&#x28;&quot;zf2&quot;&#x29;&lt;&#x2F;script&gt;
-echo $escaper->escapeHtmlAttr('<script>alert("zf2")</script>');
-
-// \x3Cscript\x3Ealert\x28\x22zf2\x22\x29\x3C\x2Fscript\x3E
-echo $escaper->escapeJs('<script>alert("zf2")</script>');
-
-// \3C script\3E alert\28 \22 zf2\22 \29 \3C \2F script\3E 
-echo $escaper->escapeCss('<script>alert("zf2")</script>');
-
-// %3Cscript%3Ealert%28%22zf2%22%29%3C%2Fscript%3E
-echo $escaper->escapeUrl('<script>alert("zf2")</script>');
-```
-
-More detailed examples will be given in later chapters.
-
-## The Problem with Inconsistent Functionality
-
-At present, programmers orient towards the following PHP functions for each
-common HTML context:
-
-- **HTML Body**: `htmlspecialchars()` or `htmlentities()`
-- **HTML Attribute**: `htmlspecialchars()` or `htmlentities()`
-- **Javascript**: `addslashes()` or `json_encode()`
-- **CSS**: n/a
-- **URL/URI**: `rawurlencode()` or `urlencode()`
-
-In practice, these decisions appear to depend more on what PHP offers, and if it
-can be interpreted as offering sufficient escaping safety, than it does on what
-is recommended in reality to defend against XSS. While these functions can
-prevent some forms of XSS, they do not cover all use cases or risks and are
-therefore insufficient defenses.
-
-Using `htmlspecialchars()` in a perfectly valid HTML5 unquoted attribute value,
-for example, is completely useless since the value can be terminated by a space
-(among other things), which is never escaped. Thus, in this instance, we have a
-conflict between a widely used HTML escaper and a modern HTML specification,
-with no specific function available to cover this use case. While it's tempting
-to blame users, or the HTML specification authors, escaping just needs to deal
-with whatever HTML and browsers allow.
-
-Using `addslashes()`, custom backslash escaping, or `json_encode()` will
-typically ignore HTML special characters such as ampersands, which may be used
-to inject entities into Javascript. Under the right circumstances, the browser
-will convert these entities into their literal equivalents before interpreting
-Javascript, thus allowing attackers to inject arbitrary code.
-
-Inconsistencies with valid HTML, insecure default parameters, lack of character
-encoding awareness, and misrepresentations of what functions are capable of by
-some programmers &mdash; these all make escaping in PHP an unnecessarily
-convoluted quest.
-
-To circumvent the lack of escaping methods in PHP, zend-escaper addresses the
-need to apply context-specific escaping in web applications. It implements
-methods that specifically target XSS and offers programmers a tool to secure
-their applications without misusing other inadequate methods, or using, most
-likely incomplete, home-grown solutions.
-
-## Why Contextual Escaping?
-
-To understand why multiple standardised escaping methods are needed, what
-follows are several quick points; they are by no means a complete set of
-reasons, however!
-
-### HTML escaping of unquoted HTML attribute values still allows XSS
-
-This is probably the best known way to defeat `htmlspecialchars()` when used on
-attribute values, since any space (or character interpreted as a space &mdash;
-there are a lot) lets you inject new attributes whose content can't be
-neutralised by HTML escaping. The solution (where this is possible) is
-additional escaping as defined by the OWASP ESAPI codecs. The point here can be
-extended further &mdash; escaping only works if a programmer or designer knows
-what they're doing. In many contexts, there are additional practices and gotchas
-that need to be carefully monitored since escaping sometimes needs a little
-extra help to protect against XSS &mdash; even if that means ensuring all
-attribute values are properly double quoted despite this not being required for
-valid HTML.
-
-### HTML escaping of CSS, Javascript or URIs is often reversed when passed to non-HTML interpreters by the browser
-
-HTML escaping is just that &mdsash; it's designed to escape a string for HTML
-(i.e. prevent tag or attribute insertion), but not alter the underlying meaning
-of the content, whether it be text, Javascript, CSS, or URIs. For that purpose,
-a fully HTML-escaped version of any other context may still have its unescaped
-form extracted before it's interpreted or executed. For this reason we need
-separate escapers for Javascript, CSS, and URIs, and developers or designers
-writing templates **must** know which escaper to apply to which context. Of
-course, this means you need to be able to identify the correct context before
-selecting the right escaper!
-
-### DOM-based XSS requires a defence using at least two levels of different escaping in many cases
-
-DOM-based XSS has become increasingly common as Javascript has taken off in
-popularity for large scale client-side coding. A simple example is Javascript
-defined in a template which inserts a new piece of HTML text into the DOM. If
-the string is only HTML escaped, it may still contain Javascript that will
-execute in that context. If the string is only Javascript-escaped, it may
-contain HTML markup (new tags and attributes) which will be injected into the
-DOM and parsed once the inserting Javascript executes. Damned either way? The
-solution is to escape twice &mdash; first escape the string for HTML (make it
-safe for DOM insertion), and then for Javascript (make it safe for the current
-Javascript context). Nested contexts are a common means of bypassing naive
-escaping habits (e.g. you can inject Javascript into a CSS expression within an
-HTML attribute).
-
-### PHP has no known anti-XSS escape functions (only those kidnapped from their original purposes)
-
-A simple example, widely used, is when you see `json_encode()` used to escape
-Javascript, or worse, some kind of mutant `addslashes()` implementation. These
-were never designed to eliminate XSS, yet PHP programmers use them as such. For
-example, `json_encode()` does not escape the ampersand or semi-colon characters
-by default. That means you can easily inject HTML entities which could then be
-decoded before the Javascript is evaluated in a HTML document. This lets you
-break out of strings, add new JS statements, close tags, etc. In other words,
-using `json_encode()` is insufficient and naive. The same, arguably, could be
-said for `htmlspecialchars()` which has its own well known limitations that make
-a singular reliance on it a questionable practice.

--- a/vendor/zendframework/zend-escaper/mkdocs.yml	Mon Apr 23 09:46:53 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,17 +0,0 @@
-docs_dir: doc/book
-site_dir: doc/html
-pages:
-    - index.md
-    - Intro: intro.md
-    - Reference:
-        - "Theory of Operation": theory-of-operation.md
-        - Configuration: configuration.md
-        - "Escaping HTML": escaping-html.md
-        - "Escaping HTML Attributes": escaping-html-attributes.md
-        - "Escaping Javascript": escaping-javascript.md
-        - "Escaping CSS": escaping-css.md
-        - "Escaping URLs": escaping-url.md
-site_name: zend-escaper
-site_description: zend-escaper
-repo_url: 'https://github.com/zendframework/zend-escaper'
-copyright: 'Copyright (c) 2016 <a href="http://www.zend.com/">Zend Technologies USA Inc.</a>'

--- a/vendor/zendframework/zend-escaper/src/Escaper.php	Mon Apr 23 09:46:53 2018 +0100
+++ b/vendor/zendframework/zend-escaper/src/Escaper.php	Thu Apr 26 11:26:54 2018 +0100
@@ -95,7 +95,11 @@
     public function __construct($encoding = null)
     {
         if ($encoding !== null) {
-            $encoding = (string) $encoding;
+            if (! is_string($encoding)) {
+                throw new Exception\InvalidArgumentException(
+                    get_class($this) . ' constructor parameter must be a string, received ' . gettype($encoding)
+                );
+            }
             if ($encoding === '') {
                 throw new Exception\InvalidArgumentException(
                     get_class($this) . ' constructor parameter does not allow a blank value'
@@ -103,7 +107,7 @@
             }
 
             $encoding = strtolower($encoding);
-            if (!in_array($encoding, $this->supportedEncodings)) {
+            if (! in_array($encoding, $this->supportedEncodings)) {
                 throw new Exception\InvalidArgumentException(
                     'Value of \'' . $encoding . '\' passed to ' . get_class($this)
                     . ' constructor parameter is invalid. Provide an encoding supported by htmlspecialchars()'
@@ -321,7 +325,7 @@
             $result = $this->convertEncoding($string, 'UTF-8', $this->getEncoding());
         }
 
-        if (!$this->isUtf8($result)) {
+        if (! $this->isUtf8($result)) {
             throw new Exception\RuntimeException(
                 sprintf('String to be escaped was not valid UTF-8 or could not be converted: %s', $result)
             );