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| 1 | +<?php |
| 2 | + |
| 3 | +/** |
| 4 | + * webtrees: online genealogy |
| 5 | + * Copyright (C) 2025 webtrees development team |
| 6 | + * This program is free software: you can redistribute it and/or modify |
| 7 | + * it under the terms of the GNU General Public License as published by |
| 8 | + * the Free Software Foundation, either version 3 of the License, or |
| 9 | + * (at your option) any later version. |
| 10 | + * This program is distributed in the hope that it will be useful, |
| 11 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | + * GNU General Public License for more details. |
| 14 | + * You should have received a copy of the GNU General Public License |
| 15 | + * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 16 | + */ |
| 17 | + |
| 18 | +declare(strict_types=1); |
| 19 | + |
| 20 | +namespace Fisharebest\Webtrees\Services\Composer; |
| 21 | + |
| 22 | +use Composer\InstalledVersions; |
| 23 | +use Fisharebest\Webtrees\FlashMessages; |
| 24 | +use Fisharebest\Webtrees\Module\ModuleCustomInterface; |
| 25 | +use Fisharebest\Webtrees\Module\ModuleInterface; |
| 26 | +use Illuminate\Support\Collection; |
| 27 | +use Throwable; |
| 28 | + |
| 29 | +use function dirname; |
| 30 | + |
| 31 | +/** |
| 32 | + * Service for loading Webtrees modules from the vendor directory using Composer's InstalledVersions API. |
| 33 | + * |
| 34 | + * This service provides seamless integration between Composer-managed packages and Webtrees' module system, |
| 35 | + * enabling modules to be distributed and installed as standard Composer packages. It represents a modern |
| 36 | + * approach to module management, similar to how major PHP frameworks like Symfony, Laravel, and TYPO3 |
| 37 | + * handle their extension ecosystems. |
| 38 | + * |
| 39 | + * The service acts as a bridge between Composer's package management and Webtrees' module system by: |
| 40 | + * - Discovering installed packages through Composer's InstalledVersions API |
| 41 | + * - Identifying which packages are Webtrees modules based on their type |
| 42 | + * - Loading and initializing modules from the vendor directory |
| 43 | + * - Integrating vendor modules with Webtrees' existing module infrastructure |
| 44 | + * |
| 45 | + * @author Rico Sonntag <[email protected]> |
| 46 | + * @license https://opensource.org/licenses/GPL-3.0 GNU General Public License v3.0 |
| 47 | + * @link https://github.com/fisharebest/webtrees/ |
| 48 | + */ |
| 49 | +class VendorModuleService |
| 50 | +{ |
| 51 | + /** |
| 52 | + * The Composer package type identifier for Webtrees modules. |
| 53 | + * |
| 54 | + * @var string The package type identifier |
| 55 | + */ |
| 56 | + private const string MODULE_TYPE = 'webtrees-module'; |
| 57 | + |
| 58 | + /** |
| 59 | + * Discovers and loads all Webtrees modules from the vendor directory. |
| 60 | + * |
| 61 | + * This is the primary entry point for vendor module discovery, called by the ModuleService |
| 62 | + * during Webtrees' bootstrap process. It orchestrates the entire discovery and loading |
| 63 | + * process for Composer-installed modules. |
| 64 | + * |
| 65 | + * @return Collection<string, ModuleCustomInterface> A collection of successfully loaded vendor modules. |
| 66 | + * Empty collection if no modules are found or an error. |
| 67 | + */ |
| 68 | + public function getVendorModules(): Collection |
| 69 | + { |
| 70 | + // Check if Composer's runtime API is available |
| 71 | + if (!$this->isComposerAvailable()) { |
| 72 | + return new Collection(); |
| 73 | + } |
| 74 | + |
| 75 | + return Collection::make($this->getInstalledWebtreesModules()) |
| 76 | + ->map(function (string $packageName): ModuleCustomInterface|null { |
| 77 | + $module = $this->loadVendorModule($packageName); |
| 78 | + |
| 79 | + if (!($module instanceof ModuleCustomInterface)) { |
| 80 | + return null; |
| 81 | + } |
| 82 | + |
| 83 | + $module->setName($this->generateModuleName($packageName)); |
| 84 | + |
| 85 | + return $module; |
| 86 | + }) |
| 87 | + ->filter() |
| 88 | + ->mapWithKeys( |
| 89 | + static fn(ModuleCustomInterface $module): array => [ |
| 90 | + $module->name() => $module, |
| 91 | + ] |
| 92 | + ); |
| 93 | + } |
| 94 | + |
| 95 | + /** |
| 96 | + * Check if Composer's runtime API is available. |
| 97 | + * |
| 98 | + * @return bool |
| 99 | + */ |
| 100 | + private function isComposerAvailable(): bool |
| 101 | + { |
| 102 | + return class_exists(InstalledVersions::class); |
| 103 | + } |
| 104 | + |
| 105 | + /** |
| 106 | + * Get a list of all installed Composer packages of the type "webtrees-module". |
| 107 | + * |
| 108 | + * @return string[] |
| 109 | + */ |
| 110 | + private function getInstalledWebtreesModules(): array |
| 111 | + { |
| 112 | + return InstalledVersions::getInstalledPackagesByType(self::MODULE_TYPE); |
| 113 | + } |
| 114 | + |
| 115 | + /** |
| 116 | + * Get the installation path for a Composer package. |
| 117 | + * |
| 118 | + * @param string $packageName The Composer package name in vendor/package format |
| 119 | + * |
| 120 | + * @return null|string |
| 121 | + */ |
| 122 | + private function getPackageInstallPath(string $packageName): ?string |
| 123 | + { |
| 124 | + try { |
| 125 | + return InstalledVersions::getInstallPath($packageName); |
| 126 | + } catch (Throwable $exception) { |
| 127 | + $this->logError( |
| 128 | + 'Error retrieving installation path', |
| 129 | + $exception |
| 130 | + ); |
| 131 | + |
| 132 | + return null; |
| 133 | + } |
| 134 | + } |
| 135 | + |
| 136 | + /** |
| 137 | + * Loads a Webtrees module from its Composer package location. |
| 138 | + * |
| 139 | + * This method handles the complete process of loading a module from the vendor directory, |
| 140 | + * including file discovery, safe loading, validation, and configuration. |
| 141 | + * |
| 142 | + * @param string $packageName The Composer package name to load |
| 143 | + * |
| 144 | + * @return ModuleInterface|null The loaded and configured module instance, |
| 145 | + * or null if loading fails for any reason |
| 146 | + */ |
| 147 | + private function loadVendorModule(string $packageName): ?ModuleInterface |
| 148 | + { |
| 149 | + // Get the installation path using Composer's API |
| 150 | + $packagePath = $this->getPackageInstallPath($packageName); |
| 151 | + |
| 152 | + if ($packagePath === null) { |
| 153 | + return null; |
| 154 | + } |
| 155 | + |
| 156 | + $moduleFile = null; |
| 157 | + |
| 158 | + // Look for the module.php file |
| 159 | + if (file_exists($packagePath . DIRECTORY_SEPARATOR . 'module.php')) { |
| 160 | + $moduleFile = $packagePath . DIRECTORY_SEPARATOR . 'module.php'; |
| 161 | + } |
| 162 | + |
| 163 | + if ($moduleFile === null) { |
| 164 | + return null; |
| 165 | + } |
| 166 | + |
| 167 | + // Load and return module |
| 168 | + return $this->loadModuleFile($moduleFile); |
| 169 | + } |
| 170 | + |
| 171 | + /** |
| 172 | + * Loads a module.php file in an isolated scope to prevent variable pollution. |
| 173 | + * |
| 174 | + * @param string $filename The absolute path to the module.php file to load |
| 175 | + * |
| 176 | + * @return ModuleInterface|null The module instance if successfully loaded, |
| 177 | + * null if loading fails or invalid return type |
| 178 | + */ |
| 179 | + private function loadModuleFile(string $filename): ?ModuleInterface |
| 180 | + { |
| 181 | + try { |
| 182 | + return include $filename; |
| 183 | + } catch (Throwable $exception) { |
| 184 | + $this->logError( |
| 185 | + 'Fatal error in vendor module: ' . basename(dirname($filename)), |
| 186 | + $exception |
| 187 | + ); |
| 188 | + } |
| 189 | + |
| 190 | + return null; |
| 191 | + } |
| 192 | + |
| 193 | + /** |
| 194 | + * Logs error messages for debugging and administrative visibility. |
| 195 | + * |
| 196 | + * @param string $message The primary error message describing the problem |
| 197 | + * @param Throwable|null $exception Optional exception providing additional details |
| 198 | + * |
| 199 | + * @return void |
| 200 | + */ |
| 201 | + private function logError(string $message, ?Throwable $exception = null): void |
| 202 | + { |
| 203 | + $fullMessage = $message; |
| 204 | + |
| 205 | + if ($exception !== null) { |
| 206 | + $fullMessage .= ': ' . $exception->getMessage(); |
| 207 | + } |
| 208 | + |
| 209 | + // Use FlashMessages for user-visible errors in admin interface |
| 210 | + FlashMessages::addMessage( |
| 211 | + $fullMessage, |
| 212 | + 'danger' |
| 213 | + ); |
| 214 | + } |
| 215 | + |
| 216 | + /** |
| 217 | + * Generates a unique module name from a Composer package name. |
| 218 | + * |
| 219 | + * This method creates a unique identifier for vendor modules that distinguishes them |
| 220 | + * from traditional modules while maintaining readability. The generated name is used |
| 221 | + * as the module's internal identifier within Webtrees. |
| 222 | + * |
| 223 | + * @param string $packageName The full Composer package name |
| 224 | + * |
| 225 | + * @return string The generated module name in _package_ format |
| 226 | + * Always starts and ends with an underscore |
| 227 | + */ |
| 228 | + private function generateModuleName(string $packageName): string |
| 229 | + { |
| 230 | + $moduleName = substr( |
| 231 | + $packageName, |
| 232 | + strpos($packageName, '/') + 1 |
| 233 | + ); |
| 234 | + |
| 235 | + return '_' . $moduleName . '_'; |
| 236 | + } |
| 237 | +} |
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