| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * balloon | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * @copyright   Copryright (c) 2012-2018 gyselroth GmbH (https://gyselroth.com) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * @license     GPL-3.0 https://opensource.org/licenses/GPL-3.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | namespace Balloon\App\Notification; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use Balloon\Filesystem\Node\AttributeDecorator; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | use Balloon\Filesystem\Node\NodeInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | use Balloon\Server; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | use Balloon\Server\AttributeDecorator as RoleAttributeDecorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | use Balloon\Server\User; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | use InvalidArgumentException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | class TemplateHandler | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * Attribute decorator. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |      * @var AttributeDecorator | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     protected $decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      * Role Attribute decorator. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * @var RoleAttributeDecorator | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     protected $role_decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * Asset directory. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     protected $asset_dir = __DIR__.DIRECTORY_SEPARATOR.'assets'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * Fallback locale. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     protected $fallback_locale = 'en_US'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * Loaded locales. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     protected $locales = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * Server. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     protected $server; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * Server context. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     protected $context = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * Constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |     public function __construct(Server $server, AttributeDecorator $decorator, RoleAttributeDecorator $role_decorator) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         $this->decorator = $decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         $this->role_decorator = $role_decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         $this->context['server_url'] = $server->getServerUrl(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * Set config. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @param iterable $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * @return TemplateHandler | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 88 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 89 |  |  |     public function setOptions(?Iterable $config = null): self | 
            
                                                                        
                            
            
                                    
            
            
                | 90 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 91 |  |  |         if (null === $config) { | 
            
                                                                        
                            
            
                                    
            
            
                | 92 |  |  |             return $this; | 
            
                                                                        
                            
            
                                    
            
            
                | 93 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 94 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 95 |  |  |         foreach ($config as $option => $value) { | 
            
                                                                        
                            
            
                                    
            
            
                | 96 |  |  |             switch ($option) { | 
            
                                                                        
                            
            
                                    
            
            
                | 97 |  |  |                 case 'asset_dir': | 
            
                                                                        
                            
            
                                    
            
            
                | 98 |  |  |                 case 'fallback_locale': | 
            
                                                                        
                            
            
                                    
            
            
                | 99 |  |  |                     $this->{$option} = (string) $value; | 
            
                                                                        
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 101 |  |  |                 break; | 
            
                                                                        
                            
            
                                    
            
            
                | 102 |  |  |                 default: | 
            
                                                                        
                            
            
                                    
            
            
                | 103 |  |  |                     throw new InvalidArgumentException('invalid option '.$option.' given'); | 
            
                                                                        
                            
            
                                    
            
            
                | 104 |  |  |              } | 
            
                                                                        
                            
            
                                    
            
            
                | 105 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 107 |  |  |         return $this; | 
            
                                                                        
                            
            
                                    
            
            
                | 108 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      * Parse body. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     public function getBody(string $notification, array $context = []): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |         return $this->parseString($notification, 'body', $context + $this->context); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      * Parse subject. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     public function getSubject(string $notification, array $context = []): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         return $this->parseString($notification, 'subject', $context + $this->context); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      * Render template. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     public function renderTemplate(string $notification, string $template, array $context = []): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         $path = $this->asset_dir.DIRECTORY_SEPARATOR.'templates'.DIRECTORY_SEPARATOR.$template; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |         $context += [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |             'subject' => $this->parseString($notification, 'subject', $context + $this->context), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |             'body' => $this->parseString($notification, 'body', $context + $this->context), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |         $template = new Template($path, $this->getLocale($context), $context + $this->context); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         return $template->render(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |      * Load locale. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |     protected function loadLocale(string $locale): ?array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |         if (isset($this->locales[$locale])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |             return $this->locales[$locale]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         $path = $this->asset_dir.DIRECTORY_SEPARATOR.'locales'.DIRECTORY_SEPARATOR.$locale.'.json'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         if (is_readable($path)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |             $i18n = json_decode(file_get_contents($path)); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |             if (json_last_error() !== 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |                 throw new Exception\TemplateInvalidLocale('locale '.$locale.' is invalid json'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |             return $this->locales[$locale] = json_decode(file_get_contents($path), true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      * Get correct locale for context. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     protected function getLocale(array $context) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         $locale = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         if (isset($context['user'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |             $locale = $context['user']->getAttributes()['locale']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |         } elseif (isset($context['sender'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |             $locale = $context['sender']->getAttributes()['locale']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |         $i18n = $this->loadLocale($locale); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |         if ($i18n === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |             $locale = $this->fallback_locale; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |             $i18n = $this->loadLocale($locale); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         if ($i18n === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |             throw new Exception\TemplateInvalidLocale('locale '.$locale.' does not exists'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         return $i18n; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |      * Parse locale string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     protected function parseString(string $notification, string $type, array $context): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         $i18n = $this->getLocale($context); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         if (!isset($i18n['type'][$notification][$type])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |             throw new Exception\TemplateInvalidLocale('locale does not have a type '.$type); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |         $string = $i18n['type'][$notification][$type]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         if (isset($context['node'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |             $string = $this->decorateNode($string, $context['node']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |         if (isset($context['user'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |             $string = $this->decorateUser($string, $context['user']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |         return $this->decorate($string, $context); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |      * Replace variables. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     protected function decorate(string $template, array $context): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |         return preg_replace_callback('/\{([^}\.]*)\}/', function ($match) use ($context) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |             $key = $match[1]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |             if (isset($context[$key])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |                 return $context[$key]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |         }, $template); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |      * Replace variables. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |     protected function decorateNode(string $template, NodeInterface $node): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |         $decorator = $this->decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |         return preg_replace_callback('/(\{node\.(([a-z]\.*)+)\})/', function ($match) use ($node, $decorator) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |             $key = explode('.', $match[2]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |             $key = array_shift($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |             $attrs = $decorator->decorate($node, [$key]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |             return $this->getArrayValue($attrs, $match[2]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |         }, $template); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |      * Replace variables. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |     protected function decorateUser(string $template, User $user): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |         $role_decorator = $this->role_decorator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |         return preg_replace_callback('/(\{user\.(([a-z]\.*)+)\})/', function ($match) use ($user, $role_decorator) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |             $key = explode('.', $match[2]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |             $key = array_shift($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |             $attrs = $role_decorator->decorate($user, [$key]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |             return $this->getArrayValue($attrs, $match[2]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |         }, $template); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |      * Get array value via string path. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |     protected function getArrayValue(Iterable $array, string $path, string $separator = '.') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |         if (isset($array[$path])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |             return $array[$path]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |         $keys = explode($separator, $path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  |         foreach ($keys as $key) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |             if (!isset($array[$key])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |                 return ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |             $array = $array[$key]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |         return $array; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 283 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 284 |  |  |  | 
            
                        
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: