updated-packages

vendor/opis/closure/CHANGELOG.md

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+CHANGELOG
+---------
+
+### v3.6.2, 2021.04.09
+
+- Fixed string interpolation
+
+### v3.6.1, 2020.11.07
+
+- Fixed serialization error [#84](https://github.com/opis/closure/issues/84)
+
+### v3.6.0, 2020.10.12
+
+- Initial PHP 8 Support [#67](https://github.com/opis/closure/issues/67).
+
+### v3.5.7, 2020.09.06
+
+- Fixed issue [#76](https://github.com/opis/closure/issues/76).
+- Fixed issue [#78](https://github.com/opis/closure/issues/78).
+
+### v3.5.6, 2020.08.11
+
+- Fixed issue [#70](https://github.com/opis/closure/issues/70)
+
+### v3.5.5, 2020.06.17
+
+- Fixed a false-positive when using `Opis\Closure\ReflectionClosure::isScopeRequired` method
+
+### v3.5.4, 2020.06.07
+
+- Fixed a false-positive when using `Opis\Closure\ReflectionClosure::isScopeRequired` method
+- Fixed a bug related to `T_STRING_VARNAME`
+
+### v3.5.3, 2020.05.25
+
+- Improved parser
+- The class scope optimisation is no longer used. We always bind now to the closure's original class scope.
+When the class scope was `null`, the optimisation failed to work as expected and kept the wrong `SerializableClosure` scope.
+
+### v3.5.2, 2020.05.21
+
+- Removed extra semicolon in short closures, since is not part of the closure's body.
+
+### v3.5.1, 2019.11.30
+
+- Bugfix. See #47
+
+### v3.5.0, 2019.11.29
+
+- Added support for short closures (arrow functions)
+- Added `isShortClosure` method to `Opis\Closure\ReflectionClosure`
+
+### v3.4.2, 2019.11.29
+
+- Added `stream_set_option()`
+
+### v3.4.1, 2019.10.19
+
+- Fixed a [bug](https://github.com/opis/closure/issues/40) that prevented serialization to work correctly.
+
+### v3.4.0, 2019.09.03
+
+- Added `createClosure` static method in `Opis\Closure\SerializableClosure`.
+This method creates a new closure from arbitrary code, emulating `create_function`,
+but without using eval
+
+### v3.3.1, 2019.07.10
+
+- Use `sha1` instead of `md5` for hashing file names in `Opis\Closure\ReflectionClosure` class
+
+### v3.3.0, 2019.05.31
+
+- Fixed a bug that prevented signed closures to properly work when the serialized string
+contains invalid UTF-8 chars. Starting with this version `json_encode` is no longer used
+when signing a closure. Backward compatibility is maintained and all closures that were 
+previously signed using the old method will continue to work.
+
+### v3.2.0, 2019.05.05
+
+- Since an unsigned closure can be unserialized when no security provider is set, 
+there is no reason to treat differently a signed closure in the same situation.
+Therefore, the `Opis\Closure\SecurityException` exception  is no longer thrown when 
+unserializing a signed closure, if no security provider is set.
+
+### v3.1.6, 2019.02.22
+
+- Fixed a bug that occurred when trying to set properties of classes that were not defined in user-land.
+Those properties are now ignored.
+
+### v3.1.5, 2019.01.14
+
+- Improved parser
+
+### v3.1.4, 2019.01.14
+
+- Added support for static methods that are named using PHP keywords or magic constants.
+Ex: `A::new()`, `A::use()`, `A::if()`, `A::function()`, `A::__DIR__()`, etc.
+- Used `@internal` to mark classes & methods that are for internal use only and
+backward compatibility is not guaranteed.
+
+### v3.1.3, 2019.01.07
+
+- Fixed a bug that prevented traits to be correctly resolved when used by an
+anonymous class
+- Fixed a bug that occurred when `$this` keyword was used inside an anonymous class
+
+### v3.1.2, 2018.12.16
+
+* Fixed a bug regarding comma trail in group-use statements. See [issue 23](https://github.com/opis/closure/issues/23)
+
+### v3.1.1, 2018.10.02
+
+* Fixed a bug where `parent` keyword was treated like a class-name and scope was not added to the
+serialized closure
+* Fixed a bug where return type was not properly handled for nested closures
+* Support for anonymous classes was improved
+
+### v3.1.0, 2018.09.20
+
+* Added `transformUseVariables` and `resolveUseVariables` to
+`Opis\Closure\SerializableClosure` class.
+* Added `removeSecurityProvider` static method to 
+`Opis\Closure\SerializableClosure` class. 
+* Fixed some security related issues where a user was able to unserialize an unsigned
+closure, even when a security provider was in use.
+
+### v3.0.12, 2018.02.23
+
+* Bugfix. See [issue 20](https://github.com/opis/closure/issues/20)
+
+### v3.0.11, 2018.01.22
+
+* Bugfix. See [issue 18](https://github.com/opis/closure/issues/18)
+
+### v3.0.10, 2018.01.04
+
+* Improved support for PHP 7.1 & 7.2
+
+### v3.0.9, 2018.01.04
+
+* Fixed a bug where the return type was not properly resolved. 
+See [issue 17](https://github.com/opis/closure/issues/17)
+* Added more tests
+
+### v3.0.8, 2017.12.18
+
+* Fixed a bug. See [issue 16](https://github.com/opis/closure/issues/16)
+
+### v3.0.7, 2017.10.31
+
+* Bugfix: static properties are ignored now, since they are not serializable
+
+### v3.0.6, 2017.10.06
+
+* Fixed a bug introduced by accident in 3.0.5
+
+### v3.0.5, 2017.09.18
+
+* Fixed a bug related to nested references
+
+### v3.0.4, 2017.09.18
+
+* \[*internal*\] Refactored `SerializableClosure::mapPointers` method
+* \[*internal*\] Added a new optional argument to `SerializableClosure::unwrapClosures`
+* \[*internal*\] Removed `SerializableClosure::getClosurePointer` method
+* Fixed various bugs
+
+### v3.0.3, 2017.09.06
+
+* Fixed a bug related to nested object references 
+* \[*internal*\] `Opis\Closure\ClosureScope` now extends `SplObjectStorage`
+* \[*internal*\] The `storage` property was removed from `Opis\Closure\ClosureScope`
+* \[*internal*\] The `instances` and `objects` properties were removed from `Opis\Closure\ClosureContext`
+
+### v3.0.2, 2017.08.28
+
+* Fixed a bug where `$this` object was not handled properly inside the 
+`SerializableClosre::serialize` method. 
+
+### v3.0.1, 2017.04.13
+
+* Fixed a bug in 'ignore_next' state
+
+### v3.0.0, 2017.04.07
+
+* Dropped PHP 5.3 support
+* Moved source files from `lib` to `src` folder
+* Removed second parameter from `Opis\Closure\SerializableClosure::from` method and from constructor
+* Removed `Opis\Closure\{SecurityProviderInterface, DefaultSecurityProvider, SecureClosure}` classes
+* Refactored how signed closures were handled
+* Added `wrapClosures` and `unwrapClosures` static methods to `Opis\Closure\SerializableClosure` class
+* Added `Opis\Colosure\serialize` and `Opis\Closure\unserialize` functions
+* Improved serialization. You can now serialize arbitrary objects and the library will automatically wrap all closures
+
+### v2.4.0, 2016.12.16
+
+* The parser was refactored and improved
+* Refactored `Opis\Closure\SerializableClosure::__invoke` method
+* `Opis\Closure\{ISecurityProvider, SecurityProvider}` were added
+* `Opis\Closure\{SecurityProviderInterface, DefaultSecurityProvider, SecureClosure}` were deprecated
+and they will be removed in the next major version
+* `setSecretKey` and `addSecurityProvider` static methods were added to `Opis\Closure\SerializableClosure`
+
+### v2.3.2, 2016.12.15
+
+* Fixed a bug that prevented namespace resolution to be done properly
+
+### v2.3.1, 2016.12.13
+
+* Hotfix. See [PR](https://github.com/opis/closure/pull/7)
+
+### v2.3.0, 2016.11.17
+
+* Added `isBindingRequired` and `isScopeRequired` to the `Opis\Closure\ReflectionClosure` class
+* Automatically detects when the scope and/or the bound object of a closure needs to be serialized.
+
+### v2.2.1, 2016.08.20
+
+* Fixed a bug in `Opis\Closure\ReflectionClosure::fetchItems`
+
+### v2.2.0, 2016.07.26
+
+* Fixed CS
+* `Opis\Closure\ClosureContext`, `Opis\Closure\ClosureScope`, `Opis\Closure\SelfReference`
+ and `Opis\Closure\SecurityException` classes were moved into separate files
+* Added support for PHP7 syntax
+* Fixed some bugs in `Opis\Closure\ReflectionClosure` class
+* Improved closure parser
+* Added an analyzer for SuperClosure library
+
+### v2.1.0, 2015.09.30
+
+* Added support for the missing `__METHOD__`, `__FUNCTION__` and `__TRAIT__` magic constants
+* Added some security related classes and interfaces: `Opis\Closure\SecurityProviderInterface`,
+`Opis\Closure\DefaultSecurityProvider`, `Opis\Closure\SecureClosure`, `Opis\Closure\SecurityException`.
+* Fiexed a bug in `Opis\Closure\ReflectionClosure::getClasses` method
+* Other minor bugfixes
+* Added support for static closures
+* Added public `isStatic` method to `Opis\Closure\ReflectionClosure` class
+
+
+### v2.0.1, 2015.09.23
+
+* Removed `branch-alias` property from `composer.json`
+* Bugfix. See [issue #6](https://github.com/opis/closure/issues/6)
+
+### v2.0.0, 2015.07.31
+
+* The closure parser was improved
+* Class names are now automatically resolved
+* Added support for the `#trackme` directive which allows tracking closure's residing source
+
+### v1.3.0, 2014.10.18
+
+* Added autoload file
+* Changed README file
+
+### Opis Closure 1.2.2
+
+* Started changelog

vendor/opis/closure/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2018-2019 Zindex Software
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/opis/closure/NOTICE

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+Opis Closure
+Copyright 2018-2019 Zindex Software
+
+This product includes software developed at
+Zindex Software (http://zindex.software).
+
+This software was originally developed by Marius Sarca and Sorin Sarca
+(Copyright 2014-2018). The copyright info was changed with the permission
+of the original authors.

vendor/opis/closure/README.md

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+Opis Closure
+====================
+[![Tests](https://github.com/opis/closure/workflows/Tests/badge.svg)](https://github.com/opis/closure/actions)
+[![Latest Stable Version](https://poser.pugx.org/opis/closure/v/stable.png)](https://packagist.org/packages/opis/closure)
+[![Latest Unstable Version](https://poser.pugx.org/opis/closure/v/unstable.png)](https://packagist.org/packages/opis/closure)
+[![License](https://poser.pugx.org/opis/closure/license.png)](https://packagist.org/packages/opis/closure)
+
+Serializable closures
+---------------------
+**Opis Closure** is a library that aims to overcome PHP's limitations regarding closure
+serialization by providing a wrapper that will make all closures serializable. 
+
+**The library's key features:**
+
+- Serialize any closure
+- Serialize arbitrary objects
+- Doesn't use `eval` for closure serialization or unserialization
+- Works with any PHP version that has support for closures
+- Supports PHP 7 syntax
+- Handles all variables referenced/imported in `use()` and automatically wraps all referenced/imported closures for
+proper serialization
+- Handles recursive closures
+- Handles magic constants like `__FILE__`, `__DIR__`, `__LINE__`, `__NAMESPACE__`, `__CLASS__`,
+`__TRAIT__`, `__METHOD__` and `__FUNCTION__`.
+- Automatically resolves all class names, function names and constant names used inside the closure
+- Track closure's residing source by using the `#trackme` directive
+- Simple and very fast parser
+- Any error or exception, that might occur when executing an unserialized closure, can be caught and treated properly
+- You can serialize/unserialize any closure unlimited times, even those previously unserialized
+(this is possible because `eval()` is not used for unserialization)
+- Handles static closures
+- Supports cryptographically signed closures
+- Provides a reflector that can give you information about the serialized closure
+- Provides an analyzer for *SuperClosure* library
+- Automatically detects when the scope and/or the bound object of a closure needs to be serialized
+in order for the closure to work after deserialization
+
+## Documentation
+
+The full documentation for this library can be found [here][documentation].
+
+## License
+
+**Opis Closure** is licensed under the [MIT License (MIT)][license].
+
+## Requirements
+
+* PHP ^5.4 || ^7.0 || ^8.0
+
+## Installation
+
+**Opis Closure** is available on [Packagist] and it can be installed from a 
+command line interface by using [Composer]. 
+
+```bash
+composer require opis/closure
+```
+
+Or you could directly reference it into your `composer.json` file as a dependency
+
+```json
+{
+    "require": {
+        "opis/closure": "^3.5"
+    }
+}
+```
+
+### Migrating from 2.x
+
+If your project needs to support PHP 5.3 you can continue using the `2.x` version
+of **Opis Closure**. Otherwise, assuming you are not using one of the removed/refactored classes or features(see 
+[CHANGELOG]), migrating to version `3.x` is simply a matter of updating your `composer.json` file. 
+
+### Semantic versioning
+
+**Opis Closure** follows [semantic versioning][SemVer] specifications.
+
+### Arbitrary object serialization
+
+We've added this feature in order to be able to support the serialization of a closure's bound object. 
+The implementation is far from being perfect, and it's really hard to make it work flawless. 
+We will try to improve this, but we can't guarantee anything. 
+So our advice regarding the `Opis\Closure\serialize|unserialize` functions is to use them with caution.
+
+
+[documentation]: https://www.opis.io/closure "Opis Closure"
+[license]: http://opensource.org/licenses/MIT "MIT License"
+[Packagist]: https://packagist.org/packages/opis/closure "Packagist"
+[Composer]: https://getcomposer.org "Composer"
+[SemVer]: http://semver.org/ "Semantic versioning"
+[CHANGELOG]: https://github.com/opis/closure/blob/master/CHANGELOG.md "Changelog"

vendor/opis/closure/autoload.php

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+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+require_once __DIR__ . '/functions.php';
+
+spl_autoload_register(function($class){
+   
+    $class = ltrim($class, '\\');
+    $dir = __DIR__ . '/src';
+    $namespace = 'Opis\Closure';
+    
+    if(strpos($class, $namespace) === 0)
+    {
+        $class = substr($class, strlen($namespace));
+        $path = '';
+        if(($pos = strripos($class, '\\')) !== FALSE)
+        {
+            $path = str_replace('\\', '/', substr($class, 0, $pos)) . '/';
+            $class = substr($class, $pos + 1);
+        }
+        $path .= str_replace('_', '/', $class) . '.php';
+        $dir .= '/' . $path;
+        
+        if(file_exists($dir))
+        {
+            include $dir;
+            return true;
+        }
+        
+        return false;
+    }
+    
+    return false;
+
+});

vendor/opis/closure/composer.json

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+{
+    "name": "opis/closure",
+    "description": "A library that can be used to serialize closures (anonymous functions) and arbitrary objects.",
+    "keywords": ["closure", "serialization", "function", "serializable", "serialize", "anonymous functions"],
+    "homepage": "https://opis.io/closure",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Marius Sarca",
+            "email": "marius.sarca@gmail.com"
+        },
+        {
+            "name": "Sorin Sarca",
+            "email": "sarca_sorin@hotmail.com"
+        }
+    ],
+    "require": {
+        "php": "^5.4 || ^7.0 || ^8.0"
+    },
+    "require-dev": {
+        "jeremeamia/superclosure": "^2.0",
+        "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0 || ^8.0 || ^9.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Opis\\Closure\\": "src/"
+        },
+        "files": ["functions.php"]
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Opis\\Closure\\Test\\": "tests/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.6.x-dev"
+        }
+    },
+    "config": {
+        "preferred-install": "dist",
+        "sort-packages": true
+    }
+}

vendor/opis/closure/functions.php

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+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+/**
+ * Serialize
+ *
+ * @param mixed $data
+ * @return string
+ */
+function serialize($data)
+{
+    SerializableClosure::enterContext();
+    SerializableClosure::wrapClosures($data);
+    $data = \serialize($data);
+    SerializableClosure::exitContext();
+    return $data;
+}
+
+/**
+ * Unserialize
+ *
+ * @param string $data
+ * @param array|null $options
+ * @return mixed
+ */
+function unserialize($data, array $options = null)
+{
+    SerializableClosure::enterContext();
+    $data = ($options === null || \PHP_MAJOR_VERSION < 7)
+        ? \unserialize($data)
+        : \unserialize($data, $options);
+    SerializableClosure::unwrapClosures($data);
+    SerializableClosure::exitContext();
+    return $data;
+}

vendor/opis/closure/src/Analyzer.php

@@ -0,0 +1,62 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+use Closure;
+use SuperClosure\Analyzer\ClosureAnalyzer;
+
+/**
+ * @deprecated We'll remove this class
+ */
+class Analyzer extends ClosureAnalyzer
+{
+    /**
+     * Analyzer a given closure.
+     *
+     * @param Closure $closure
+     *
+     * @return array
+     */
+    public function analyze(Closure $closure)
+    {
+        $reflection = new ReflectionClosure($closure);
+        $scope = $reflection->getClosureScopeClass();
+
+        $data = [
+            'reflection' => $reflection,
+            'code'       => $reflection->getCode(),
+            'hasThis'    => $reflection->isBindingRequired(),
+            'context'    => $reflection->getUseVariables(),
+            'hasRefs'    => false,
+            'binding'    => $reflection->getClosureThis(),
+            'scope'      => $scope ? $scope->getName() : null,
+            'isStatic'   => $reflection->isStatic(),
+        ];
+
+        return $data;
+    }
+
+    /**
+     * @param array $data
+     * @return mixed
+     */
+    protected function determineCode(array &$data)
+    {
+        return null;
+    }
+
+    /**
+     * @param array $data
+     * @return mixed
+     */
+    protected function determineContext(array &$data)
+    {
+        return null;
+    }
+
+}

vendor/opis/closure/src/ClosureContext.php

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+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+/**
+ * Closure context class
+ * @internal
+ */
+class ClosureContext
+{
+    /**
+     * @var ClosureScope Closures scope
+     */
+    public $scope;
+
+    /**
+     * @var integer
+     */
+    public $locks;
+
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+        $this->scope = new ClosureScope();
+        $this->locks = 0;
+    }
+}

vendor/opis/closure/src/ClosureScope.php

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+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+/**
+ * Closure scope class
+ * @internal
+ */
+class ClosureScope extends \SplObjectStorage
+{
+    /**
+     * @var integer Number of serializations in current scope
+     */
+    public $serializations = 0;
+
+    /**
+     * @var integer Number of closures that have to be serialized
+     */
+    public $toserialize = 0;
+}

vendor/opis/closure/src/ClosureStream.php

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+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+/**
+ * @internal
+ */
+class ClosureStream
+{
+    const STREAM_PROTO = 'closure';
+
+    protected static $isRegistered = false;
+
+    protected $content;
+
+    protected $length;
+
+    protected $pointer = 0;
+
+    function stream_open($path, $mode, $options, &$opened_path)
+    {
+        $this->content = "<?php\nreturn " . substr($path, strlen(static::STREAM_PROTO . '://')) . ";";
+        $this->length = strlen($this->content);
+        return true;
+    }
+
+    public function stream_read($count)
+    {
+        $value = substr($this->content, $this->pointer, $count);
+        $this->pointer += $count;
+        return $value;
+    }
+
+    public function stream_eof()
+    {
+        return $this->pointer >= $this->length;
+    }
+
+    public function stream_set_option($option, $arg1, $arg2)
+    {
+        return false;
+    }
+
+    public function stream_stat()
+    {
+        $stat = stat(__FILE__);
+        $stat[7] = $stat['size'] = $this->length;
+        return $stat;
+    }
+
+    public function url_stat($path, $flags)
+    {
+        $stat = stat(__FILE__);
+        $stat[7] = $stat['size'] = $this->length;
+        return $stat;
+    }
+
+    public function stream_seek($offset, $whence = SEEK_SET)
+    {
+        $crt = $this->pointer;
+
+        switch ($whence) {
+            case SEEK_SET:
+                $this->pointer = $offset;
+                break;
+            case SEEK_CUR:
+                $this->pointer += $offset;
+                break;
+            case SEEK_END:
+                $this->pointer = $this->length + $offset;
+                break;
+        }
+
+        if ($this->pointer < 0 || $this->pointer >= $this->length) {
+            $this->pointer = $crt;
+            return false;
+        }
+
+        return true;
+    }
+
+    public function stream_tell()
+    {
+        return $this->pointer;
+    }
+
+    public static function register()
+    {
+        if (!static::$isRegistered) {
+            static::$isRegistered = stream_wrapper_register(static::STREAM_PROTO, __CLASS__);
+        }
+    }
+
+}

vendor/opis/closure/src/ISecurityProvider.php

@@ -0,0 +1,25 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+interface ISecurityProvider
+{
+    /**
+     * Sign serialized closure
+     * @param string $closure
+     * @return array
+     */
+    public function sign($closure);
+
+    /**
+     * Verify signature
+     * @param array $data
+     * @return bool
+     */
+    public function verify(array $data);
+}

vendor/opis/closure/src/SecurityException.php

@@ -0,0 +1,18 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+use Exception;
+
+/**
+ * Security exception class
+ */
+class SecurityException extends Exception
+{
+
+}

vendor/opis/closure/src/SecurityProvider.php

@@ -0,0 +1,42 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+class SecurityProvider implements ISecurityProvider
+{
+    /** @var  string */
+    protected $secret;
+
+    /**
+     * SecurityProvider constructor.
+     * @param string $secret
+     */
+    public function __construct($secret)
+    {
+        $this->secret = $secret;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function sign($closure)
+    {
+        return array(
+            'closure' => $closure,
+            'hash' => base64_encode(hash_hmac('sha256', $closure, $this->secret, true)),
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function verify(array $data)
+    {
+        return base64_encode(hash_hmac('sha256', $data['closure'], $this->secret, true)) === $data['hash'];
+    }
+}

vendor/opis/closure/src/SelfReference.php

@@ -0,0 +1,31 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+
+/**
+ * Helper class used to indicate a reference to an object
+ * @internal
+ */
+class SelfReference
+{
+    /**
+     * @var string An unique hash representing the object
+     */
+    public $hash;
+
+    /**
+     * Constructor
+     *
+     * @param string $hash
+     */
+    public function __construct($hash)
+    {
+        $this->hash = $hash;
+    }
+}

vendor/opis/closure/src/SerializableClosure.php

@@ -0,0 +1,678 @@
+<?php
+/* ===========================================================================
+ * Copyright (c) 2018-2021 Zindex Software
+ *
+ * Licensed under the MIT License
+ * =========================================================================== */
+
+namespace Opis\Closure;
+
+use Closure;
+use Serializable;
+use SplObjectStorage;
+use ReflectionObject;
+
+/**
+ * Provides a wrapper for serialization of closures
+ */
+class SerializableClosure implements Serializable
+{
+    /**
+     * @var Closure Wrapped closure
+     *
+     * @see \Opis\Closure\SerializableClosure::getClosure()
+     */
+    protected $closure;
+
+    /**
+     * @var ReflectionClosure A reflection instance for closure
+     *
+     * @see \Opis\Closure\SerializableClosure::getReflector()
+     */
+    protected $reflector;
+
+    /**
+     * @var mixed Used at deserialization to hold variables
+     *
+     * @see \Opis\Closure\SerializableClosure::unserialize()
+     * @see \Opis\Closure\SerializableClosure::getReflector()
+     */
+    protected $code;
+
+    /**
+     * @var string Closure's ID
+     */
+    protected $reference;
+
+    /**
+     * @var string Closure scope
+     */
+    protected $scope;
+
+    /**
+     * @var ClosureContext Context of closure, used in serialization
+     */
+    protected static $context;
+
+    /**
+     * @var ISecurityProvider|null
+     */
+    protected static $securityProvider;
+
+    /** Array recursive constant*/
+    const ARRAY_RECURSIVE_KEY = '¯\_(ツ)_/¯';
+
+    /**
+     * Constructor
+     *
+     * @param   Closure $closure Closure you want to serialize
+     */
+    public function __construct(Closure $closure)
+    {
+        $this->closure = $closure;
+        if (static::$context !== null) {
+            $this->scope = static::$context->scope;
+            $this->scope->toserialize++;
+        }
+    }
+
+    /**
+     * Get the Closure object
+     *
+     * @return  Closure The wrapped closure
+     */
+    public function getClosure()
+    {
+        return $this->closure;
+    }
+
+    /**
+     * Get the reflector for closure
+     *
+     * @return  ReflectionClosure
+     */
+    public function getReflector()
+    {
+        if ($this->reflector === null) {
+            $this->reflector = new ReflectionClosure($this->closure);
+            $this->code = null;
+        }
+
+        return $this->reflector;
+    }
+
+    /**
+     * Implementation of magic method __invoke()
+     */
+    public function __invoke()
+    {
+        return call_user_func_array($this->closure, func_get_args());
+    }
+
+    /**
+     * Implementation of Serializable::serialize()
+     *
+     * @return  string  The serialized closure
+     */
+    public function serialize()
+    {
+        if ($this->scope === null) {
+            $this->scope = new ClosureScope();
+            $this->scope->toserialize++;
+        }
+
+        $this->scope->serializations++;
+
+        $scope = $object = null;
+        $reflector = $this->getReflector();
+
+        if($reflector->isBindingRequired()){
+            $object = $reflector->getClosureThis();
+            static::wrapClosures($object, $this->scope);
+            if($scope = $reflector->getClosureScopeClass()){
+                $scope = $scope->name;
+            }
+        } else {
+            if($scope = $reflector->getClosureScopeClass()){
+                $scope = $scope->name;
+            }
+        }
+
+        $this->reference = spl_object_hash($this->closure);
+
+        $this->scope[$this->closure] = $this;
+
+        $use = $this->transformUseVariables($reflector->getUseVariables());
+        $code = $reflector->getCode();
+
+        $this->mapByReference($use);
+
+        $ret = \serialize(array(
+            'use' => $use,
+            'function' => $code,
+            'scope' => $scope,
+            'this' => $object,
+            'self' => $this->reference,
+        ));
+
+        if (static::$securityProvider !== null) {
+            $data = static::$securityProvider->sign($ret);
+            $ret =  '@' . $data['hash'] . '.' . $data['closure'];
+        }
+
+        if (!--$this->scope->serializations && !--$this->scope->toserialize) {
+            $this->scope = null;
+        }
+
+        return $ret;
+    }
+
+    /**
+     * Transform the use variables before serialization.
+     *
+     * @param  array  $data The Closure's use variables
+     * @return array
+     */
+    protected function transformUseVariables($data)
+    {
+        return $data;
+    }
+
+    /**
+     * Implementation of Serializable::unserialize()
+     *
+     * @param   string $data Serialized data
+     * @throws SecurityException
+     */
+    public function unserialize($data)
+    {
+        ClosureStream::register();
+
+        if (static::$securityProvider !== null) {
+            if ($data[0] !== '@') {
+                throw new SecurityException("The serialized closure is not signed. ".
+                    "Make sure you use a security provider for both serialization and unserialization.");
+            }
+
+            if ($data[1] !== '{') {
+                $separator = strpos($data, '.');
+                if ($separator === false) {
+                    throw new SecurityException('Invalid signed closure');
+                }
+                $hash = substr($data, 1, $separator - 1);
+                $closure = substr($data, $separator + 1);
+
+                $data = ['hash' => $hash, 'closure' => $closure];
+
+                unset($hash, $closure);
+            } else {
+                $data = json_decode(substr($data, 1), true);
+            }
+
+            if (!is_array($data) || !static::$securityProvider->verify($data)) {
+                throw new SecurityException("Your serialized closure might have been modified and it's unsafe to be unserialized. " .
+                    "Make sure you use the same security provider, with the same settings, " .
+                    "both for serialization and unserialization.");
+            }
+
+            $data = $data['closure'];
+        } elseif ($data[0] === '@') {
+            if ($data[1] !== '{') {
+                $separator = strpos($data, '.');
+                if ($separator === false) {
+                    throw new SecurityException('Invalid signed closure');
+                }
+                $hash = substr($data, 1, $separator - 1);
+                $closure = substr($data, $separator + 1);
+
+                $data = ['hash' => $hash, 'closure' => $closure];
+
+                unset($hash, $closure);
+            } else {
+                $data = json_decode(substr($data, 1), true);
+            }
+
+            if (!is_array($data) || !isset($data['closure']) || !isset($data['hash'])) {
+                throw new SecurityException('Invalid signed closure');
+            }
+
+            $data = $data['closure'];
+        }
+
+        $this->code = \unserialize($data);
+
+        // unset data
+        unset($data);
+
+        $this->code['objects'] = array();
+
+        if ($this->code['use']) {
+            $this->scope = new ClosureScope();
+            $this->code['use'] = $this->resolveUseVariables($this->code['use']);
+            $this->mapPointers($this->code['use']);
+            extract($this->code['use'], EXTR_OVERWRITE | EXTR_REFS);
+            $this->scope = null;
+        }
+
+        $this->closure = include(ClosureStream::STREAM_PROTO . '://' . $this->code['function']);
+
+        if($this->code['this'] === $this){
+            $this->code['this'] = null;
+        }
+
+        $this->closure = $this->closure->bindTo($this->code['this'], $this->code['scope']);
+
+        if(!empty($this->code['objects'])){
+            foreach ($this->code['objects'] as $item){
+                $item['property']->setValue($item['instance'], $item['object']->getClosure());
+            }
+        }
+
+        $this->code = $this->code['function'];
+    }
+
+    /**
+     * Resolve the use variables after unserialization.
+     *
+     * @param  array  $data The Closure's transformed use variables
+     * @return array
+     */
+    protected function resolveUseVariables($data)
+    {
+        return $data;
+    }
+
+    /**
+     * Wraps a closure and sets the serialization context (if any)
+     *
+     * @param   Closure $closure Closure to be wrapped
+     *
+     * @return  self    The wrapped closure
+     */
+    public static function from(Closure $closure)
+    {
+        if (static::$context === null) {
+            $instance = new static($closure);
+        } elseif (isset(static::$context->scope[$closure])) {
+            $instance = static::$context->scope[$closure];
+        } else {
+            $instance = new static($closure);
+            static::$context->scope[$closure] = $instance;
+        }
+
+        return $instance;
+    }
+
+    /**
+     * Increments the context lock counter or creates a new context if none exist
+     */
+    public static function enterContext()
+    {
+        if (static::$context === null) {
+            static::$context = new ClosureContext();
+        }
+
+        static::$context->locks++;
+    }
+
+    /**
+     * Decrements the context lock counter and destroy the context when it reaches to 0
+     */
+    public static function exitContext()
+    {
+        if (static::$context !== null && !--static::$context->locks) {
+            static::$context = null;
+        }
+    }
+
+    /**
+     * @param string $secret
+     */
+    public static function setSecretKey($secret)
+    {
+        if(static::$securityProvider === null){
+            static::$securityProvider = new SecurityProvider($secret);
+        }
+    }
+
+    /**
+     * @param ISecurityProvider $securityProvider
+     */
+    public static function addSecurityProvider(ISecurityProvider $securityProvider)
+    {
+        static::$securityProvider = $securityProvider;
+    }
+
+    /**
+     * Remove security provider
+     */
+    public static function removeSecurityProvider()
+    {
+        static::$securityProvider = null;
+    }
+
+    /**
+     * @return null|ISecurityProvider
+     */
+    public static function getSecurityProvider()
+    {
+        return static::$securityProvider;
+    }
+
+    /**
+     * Wrap closures
+     *
+     * @internal
+     * @param $data
+     * @param ClosureScope|SplObjectStorage|null $storage
+     */
+    public static function wrapClosures(&$data, SplObjectStorage $storage = null)
+    {
+        if($storage === null){
+            $storage = static::$context->scope;
+        }
+
+        if($data instanceof Closure){
+            $data = static::from($data);
+        } elseif (is_array($data)){
+            if(isset($data[self::ARRAY_RECURSIVE_KEY])){
+                return;
+            }
+            $data[self::ARRAY_RECURSIVE_KEY] = true;
+            foreach ($data as $key => &$value){
+                if($key === self::ARRAY_RECURSIVE_KEY){
+                    continue;
+                }
+                static::wrapClosures($value, $storage);
+            }
+            unset($value);
+            unset($data[self::ARRAY_RECURSIVE_KEY]);
+        } elseif($data instanceof \stdClass){
+            if(isset($storage[$data])){
+                $data = $storage[$data];
+                return;
+            }
+            $data = $storage[$data] = clone($data);
+            foreach ($data as &$value){
+                static::wrapClosures($value, $storage);
+            }
+            unset($value);
+        } elseif (is_object($data) && ! $data instanceof static){
+            if(isset($storage[$data])){
+                $data = $storage[$data];
+                return;
+            }
+            $instance = $data;
+            $reflection = new ReflectionObject($instance);
+            if(!$reflection->isUserDefined()){
+                $storage[$instance] = $data;
+                return;
+            }
+            $storage[$instance] = $data = $reflection->newInstanceWithoutConstructor();
+
+            do{
+                if(!$reflection->isUserDefined()){
+                    break;
+                }
+                foreach ($reflection->getProperties() as $property){
+                    if($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()){
+                        continue;
+                    }
+                    $property->setAccessible(true);
+                    if (PHP_VERSION >= 7.4 && !$property->isInitialized($instance)) {
+                        continue;
+                    }
+                    $value = $property->getValue($instance);
+                    if(is_array($value) || is_object($value)){
+                        static::wrapClosures($value, $storage);
+                    }
+                    $property->setValue($data, $value);
+                };
+            } while($reflection = $reflection->getParentClass());
+        }
+    }
+
+    /**
+     * Unwrap closures
+     *
+     * @internal
+     * @param $data
+     * @param SplObjectStorage|null $storage
+     */
+    public static function unwrapClosures(&$data, SplObjectStorage $storage = null)
+    {
+        if($storage === null){
+            $storage = static::$context->scope;
+        }
+
+        if($data instanceof static){
+            $data = $data->getClosure();
+        } elseif (is_array($data)){
+            if(isset($data[self::ARRAY_RECURSIVE_KEY])){
+                return;
+            }
+            $data[self::ARRAY_RECURSIVE_KEY] = true;
+            foreach ($data as $key => &$value){
+                if($key === self::ARRAY_RECURSIVE_KEY){
+                    continue;
+                }
+                static::unwrapClosures($value, $storage);
+            }
+            unset($data[self::ARRAY_RECURSIVE_KEY]);
+        }elseif ($data instanceof \stdClass){
+            if(isset($storage[$data])){
+                return;
+            }
+            $storage[$data] = true;
+            foreach ($data as &$property){
+                static::unwrapClosures($property, $storage);
+            }
+        } elseif (is_object($data) && !($data instanceof Closure)){
+            if(isset($storage[$data])){
+                return;
+            }
+            $storage[$data] = true;
+            $reflection = new ReflectionObject($data);
+
+            do{
+                if(!$reflection->isUserDefined()){
+                    break;
+                }
+                foreach ($reflection->getProperties() as $property){
+                    if($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()){
+                        continue;
+                    }
+                    $property->setAccessible(true);
+                    if (PHP_VERSION >= 7.4 && !$property->isInitialized($data)) {
+                        continue;
+                    }
+                    $value = $property->getValue($data);
+                    if(is_array($value) || is_object($value)){
+                        static::unwrapClosures($value, $storage);
+                        $property->setValue($data, $value);
+                    }
+                };
+            } while($reflection = $reflection->getParentClass());
+        }
+    }
+
+    /**
+     * Creates a new closure from arbitrary code,
+     * emulating create_function, but without using eval
+     *
+     * @param string$args
+     * @param string $code
+     * @return Closure
+     */
+    public static function createClosure($args, $code)
+    {
+        ClosureStream::register();
+        return include(ClosureStream::STREAM_PROTO . '://function(' . $args. '){' . $code . '};');
+    }
+
+    /**
+     * Internal method used to map closure pointers
+     * @internal
+     * @param $data
+     */
+    protected function mapPointers(&$data)
+    {
+        $scope = $this->scope;
+
+        if ($data instanceof static) {
+            $data = &$data->closure;
+        } elseif (is_array($data)) {
+            if(isset($data[self::ARRAY_RECURSIVE_KEY])){
+                return;
+            }
+            $data[self::ARRAY_RECURSIVE_KEY] = true;
+            foreach ($data as $key => &$value){
+                if($key === self::ARRAY_RECURSIVE_KEY){
+                    continue;
+                } elseif ($value instanceof static) {
+                    $data[$key] = &$value->closure;
+                } elseif ($value instanceof SelfReference && $value->hash === $this->code['self']){
+                    $data[$key] = &$this->closure;
+                } else {
+                    $this->mapPointers($value);
+                }
+            }
+            unset($value);
+            unset($data[self::ARRAY_RECURSIVE_KEY]);
+        } elseif ($data instanceof \stdClass) {
+            if(isset($scope[$data])){
+                return;
+            }
+            $scope[$data] = true;
+            foreach ($data as $key => &$value){
+                if ($value instanceof SelfReference && $value->hash === $this->code['self']){
+                    $data->{$key} = &$this->closure;
+                } elseif(is_array($value) || is_object($value)) {
+                    $this->mapPointers($value);
+                }
+            }
+            unset($value);
+        } elseif (is_object($data) && !($data instanceof Closure)){
+            if(isset($scope[$data])){
+                return;
+            }
+            $scope[$data] = true;
+            $reflection = new ReflectionObject($data);
+            do{
+                if(!$reflection->isUserDefined()){
+                    break;
+                }
+                foreach ($reflection->getProperties() as $property){
+                    if($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()){
+                        continue;
+                    }
+                    $property->setAccessible(true);
+                    if (PHP_VERSION >= 7.4 && !$property->isInitialized($data)) {
+                        continue;
+                    }
+                    $item = $property->getValue($data);
+                    if ($item instanceof SerializableClosure || ($item instanceof SelfReference && $item->hash === $this->code['self'])) {
+                        $this->code['objects'][] = array(
+                            'instance' => $data,
+                            'property' => $property,
+                            'object' => $item instanceof SelfReference ? $this : $item,
+                        );
+                    } elseif (is_array($item) || is_object($item)) {
+                        $this->mapPointers($item);
+                        $property->setValue($data, $item);
+                    }
+                }
+            } while($reflection = $reflection->getParentClass());
+        }
+    }
+
+    /**
+     * Internal method used to map closures by reference
+     *
+     * @internal
+     * @param   mixed &$data
+     */
+    protected function mapByReference(&$data)
+    {
+        if ($data instanceof Closure) {
+            if($data === $this->closure){
+                $data = new SelfReference($this->reference);
+                return;
+            }
+
+            if (isset($this->scope[$data])) {
+                $data = $this->scope[$data];
+                return;
+            }
+
+            $instance = new static($data);
+
+            if (static::$context !== null) {
+                static::$context->scope->toserialize--;
+            } else {
+                $instance->scope = $this->scope;
+            }
+
+            $data = $this->scope[$data] = $instance;
+        } elseif (is_array($data)) {
+            if(isset($data[self::ARRAY_RECURSIVE_KEY])){
+                return;
+            }
+            $data[self::ARRAY_RECURSIVE_KEY] = true;
+            foreach ($data as $key => &$value){
+                if($key === self::ARRAY_RECURSIVE_KEY){
+                    continue;
+                }
+                $this->mapByReference($value);
+            }
+            unset($value);
+            unset($data[self::ARRAY_RECURSIVE_KEY]);
+        } elseif ($data instanceof \stdClass) {
+            if(isset($this->scope[$data])){
+                $data = $this->scope[$data];
+                return;
+            }
+            $instance = $data;
+            $this->scope[$instance] = $data = clone($data);
+
+            foreach ($data as &$value){
+                $this->mapByReference($value);
+            }
+            unset($value);
+        } elseif (is_object($data) && !$data instanceof SerializableClosure){
+            if(isset($this->scope[$data])){
+                $data = $this->scope[$data];
+                return;
+            }
+
+            $instance = $data;
+            $reflection = new ReflectionObject($data);
+            if(!$reflection->isUserDefined()){
+                $this->scope[$instance] = $data;
+                return;
+            }
+            $this->scope[$instance] = $data = $reflection->newInstanceWithoutConstructor();
+
+            do{
+                if(!$reflection->isUserDefined()){
+                    break;
+                }
+                foreach ($reflection->getProperties() as $property){
+                    if($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()){
+                        continue;
+                    }
+                    $property->setAccessible(true);
+                    if (PHP_VERSION >= 7.4 && !$property->isInitialized($instance)) {
+                        continue;
+                    }
+                    $value = $property->getValue($instance);
+                    if(is_array($value) || is_object($value)){
+                        $this->mapByReference($value);
+                    }
+                    $property->setValue($data, $value);
+                }
+            } while($reflection = $reflection->getParentClass());
+        }
+    }
+
+}