├── Interception
    └── Code
    │   └── Generator
    │       ├── DiCompileInterceptor.php
    │       ├── GetClassMethodsTrait.php
    │       └── Interceptor.php
├── LICENSE.txt
├── README.md
├── composer.json
├── etc
    ├── di.xml
    └── module.xml
└── registration.php


/Interception/Code/Generator/DiCompileInterceptor.php:
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 1 | <?php
 2 | /**
 3 |  * Copyright © 2018 Daniel Sloof. All rights reserved.
 4 |  * See LICENSE.txt for license details.
 5 |  */
 6 | namespace Danslo\ProtectedInterceptors\Interception\Code\Generator;
 7 | 
 8 | class DiCompileInterceptor extends \Magento\Setup\Module\Di\Code\Generator\Interceptor
 9 | {
10 |     use GetClassMethodsTrait;
11 | }
12 | 


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/Interception/Code/Generator/GetClassMethodsTrait.php:
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 1 | <?php
 2 | 
 3 | declare(strict_types=1);
 4 | 
 5 | namespace Danslo\ProtectedInterceptors\Interception\Code\Generator;
 6 | 
 7 | trait GetClassMethodsTrait
 8 | {
 9 |     private $ignores = [
10 |         \Magento\Customer\Model\ResourceModel\CustomerRepository::class => ['addFilterGroupToCollection']
11 |     ];
12 | 
13 |     /**
14 |      * Returns list of methods for class generator.
15 |      *
16 |      * Included protected method in our filter.
17 |      *
18 |      * @return array
19 |      * @throws \ReflectionException
20 |      */
21 |     protected function _getClassMethods()
22 |     {
23 |         $methods = [$this->_getDefaultConstructorDefinition()];
24 |         $reflectionClass = new \ReflectionClass($this->getSourceClassName());
25 |         $methodFilter = \ReflectionMethod::IS_PUBLIC;
26 | 
27 |         // Working around a circular dependency issue for this specific class.
28 |         if (strpos($this->getSourceClassName(), '\Magento\Store\Model\ResourceModel') !== 0) {
29 |             $methodFilter |= \ReflectionMethod::IS_PROTECTED;
30 |         }
31 | 
32 |         $interceptedMethods = $reflectionClass->getMethods($methodFilter);
33 |         foreach ($interceptedMethods as $method) {
34 |             if ($this->isInterceptedMethod($method) && !$this->isIgnoredMethod($method)) {
35 |                 $methods[] = $this->_getMethodInfo($method);
36 |             }
37 |         }
38 |         return $methods;
39 |     }
40 | 
41 |     /**
42 |      * Retrieve method info
43 |      *
44 |      * @param \ReflectionMethod $method
45 |      * @return array
46 |      */
47 |     protected function _getMethodInfo(\ReflectionMethod $method)
48 |     {
49 |         $methodInfo = parent::_getMethodInfo($method);
50 |         $methodInfo['visibility'] = $method->isProtected() ? 'protected' : 'public';
51 |         return $methodInfo;
52 |     }
53 | 
54 |     private function isIgnoredMethod(\ReflectionMethod $method): bool
55 |     {
56 |         if (!isset($this->ignores[$method->getDeclaringClass()->getName()])) {
57 |             return false;
58 |         }
59 | 
60 |         return in_array($method->getName(), $this->ignores[$method->getDeclaringClass()->getName()], true);
61 |     }
62 | }
63 | 


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/Interception/Code/Generator/Interceptor.php:
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 1 | <?php
 2 | /**
 3 |  * Copyright © 2018 Daniel Sloof. All rights reserved.
 4 |  * See LICENSE.txt for license details.
 5 |  */
 6 | namespace Danslo\ProtectedInterceptors\Interception\Code\Generator;
 7 | 
 8 | class Interceptor extends \Magento\Framework\Interception\Code\Generator\Interceptor
 9 | {
10 |     use GetClassMethodsTrait;
11 | }
12 | 


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/LICENSE.txt:
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1 | Copyright 2018 Daniel Sloof
2 | 
3 | 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:
4 | 
5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
6 | 
7 | 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.
8 | 


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/README.md:
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 1 | # Protected Interceptors for Magento 2
 2 | 
 3 | With the addition of [interceptors](http://devdocs.magento.com/guides/v2.2/extension-dev-guide/plugins.html), we have a powerful tool to modify the behavior of almost any component in Magento 2.
 4 | 
 5 | The core developers have very good reasons to disallow interception of non-public methods. In an ideal world, we would have small classes with minimal inheritance ([composite reuse principle](https://en.wikipedia.org/wiki/Composition_over_inheritance)) with easy to modify public interfaces.
 6 | In practice, we're still often forced to use [preferences](https://alanstorm.com/magento_2_object_manager_preferences/).
 7 | 
 8 | This module modifies the code generator to also generate interceptors for protected methods.
 9 | That's quite probably a bad thing, and you **should not install** this at all.
10 | But maybe you like to learn a bit more about how interception is implemented in Magento 2 and don't mind breaking things. Then go right ahead :)
11 | 
12 | ## Installation
13 | 
14 | ```bash
15 | $ composer require danslo/magento2-module-protected-interceptors
16 | ```
17 | 
18 | ## License
19 | 
20 | Copyright 2018 Daniel Sloof
21 | 
22 | 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:
23 | 
24 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
25 | 
26 | 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.


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/composer.json:
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 1 | {
 2 |   "name": "danslo/magento2-module-protected-interceptors",
 3 |   "description": "Allows you to create Magento 2 plugins for protected methods.",
 4 |   "type": "magento2-module",
 5 |   "license": "MIT",
 6 |   "autoload": {
 7 |     "files": [
 8 |       "registration.php"
 9 |     ],
10 |     "psr-4": {
11 |       "Danslo\\ProtectedInterceptors\\": ""
12 |     }
13 |   }
14 | }


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/etc/di.xml:
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1 | <?xml version="1.0"?>
2 | <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
3 |     <preference for="Magento\Framework\Interception\Code\Generator\Interceptor" type="Danslo\ProtectedInterceptors\Interception\Code\Generator\Interceptor" />
4 |     <preference for="Magento\Setup\Module\Di\Code\Generator\Interceptor" type="Danslo\ProtectedInterceptors\Interception\Code\Generator\DiCompileInterceptor" />
5 | </config>
6 | 


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/etc/module.xml:
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1 | <?xml version="1.0"?>
2 | <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
3 |     <module name="Danslo_ProtectedInterceptors" setup_version="1.0.0" />
4 | </config>
5 | 


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/registration.php:
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1 | <?php
2 | /**
3 |  * Copyright © 2018 Daniel Sloof. All rights reserved.
4 |  * See LICENSE.txt for license details.
5 |  */
6 | use \Magento\Framework\Component\ComponentRegistrar;
7 | 
8 | ComponentRegistrar::register(ComponentRegistrar::MODULE, 'Danslo_ProtectedInterceptors', __DIR__);


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