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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * The Installer class installs phpMyFAQ. Classy. |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Florian Anderiasch <florian@phpmyfaq.net> |
| 12 | * @copyright 2012-2026 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2012-08-27 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Setup; |
| 21 | |
| 22 | use Elastic\Elasticsearch\Exception\AuthenticationException; |
| 23 | use phpMyFAQ\Core\Exception; |
| 24 | use phpMyFAQ\Instance\Setup; |
| 25 | use phpMyFAQ\Setup\Installation\DefaultDataSeeder; |
| 26 | use phpMyFAQ\System; |
| 27 | use Symfony\Component\HttpFoundation\Request; |
| 28 | |
| 29 | /** |
| 30 | * Class Installer |
| 31 | * |
| 32 | * @package phpMyFAQ |
| 33 | */ |
| 34 | class Installer extends Setup |
| 35 | { |
| 36 | /** |
| 37 | * Constructor. |
| 38 | * |
| 39 | * @throws \Exception |
| 40 | */ |
| 41 | public function __construct( |
| 42 | private readonly System $system, |
| 43 | ) { |
| 44 | parent::__construct(); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Removes the database.php and the ldap.php if an installation failed. |
| 49 | */ |
| 50 | public static function cleanFailedInstallationFiles(): void |
| 51 | { |
| 52 | $databaseFile = (string) PMF_ROOT_DIR . '/content/core/config/database.php'; |
| 53 | if (file_exists($databaseFile)) { |
| 54 | unlink($databaseFile); |
| 55 | } |
| 56 | |
| 57 | $ldapFile = (string) PMF_ROOT_DIR . '/content/core/config/ldap.php'; |
| 58 | if (file_exists($ldapFile)) { |
| 59 | unlink($ldapFile); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Check the necessary stuff and throw an exception if something is wrong. |
| 65 | * @throws Exception |
| 66 | */ |
| 67 | public function checkBasicStuff(): void |
| 68 | { |
| 69 | if (!$this->checkMinimumPhpVersion()) { |
| 70 | throw new Exception(sprintf('Sorry, but you need PHP %s or later!', System::VERSION_MINIMUM_PHP)); |
| 71 | } |
| 72 | |
| 73 | if (!function_exists('date_default_timezone_set')) { |
| 74 | throw new Exception('Sorry, but setting a default timezone does not work in your environment!'); |
| 75 | } |
| 76 | |
| 77 | if (!$this->system->checkDatabase()) { |
| 78 | throw new Exception('No supported database detected!'); |
| 79 | } |
| 80 | |
| 81 | if (!$this->system->checkRequiredExtensions()) { |
| 82 | throw new Exception(sprintf('Some required PHP extensions are missing: %s', implode( |
| 83 | ', ', |
| 84 | $this->system->getMissingExtensions(), |
| 85 | ))); |
| 86 | } |
| 87 | |
| 88 | if (!$this->system->checkInstallation()) { |
| 89 | throw new Exception( |
| 90 | 'Looks like phpMyFAQ is already installed! Please use the <a href="../update">update</a>.', |
| 91 | ); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Checks if the file permissions are okay. |
| 97 | */ |
| 98 | public function checkFilesystemPermissions(): ?string |
| 99 | { |
| 100 | $instanceSetup = new Setup(); |
| 101 | $instanceSetup->setRootDir((string) PMF_ROOT_DIR); |
| 102 | |
| 103 | $dirs = [ |
| 104 | '/content/core/config', |
| 105 | '/content/core/data', |
| 106 | '/content/core/logs', |
| 107 | '/content/user/images', |
| 108 | '/content/user/attachments', |
| 109 | ]; |
| 110 | $failedDirs = $instanceSetup->checkDirs($dirs); |
| 111 | $numDirs = count($failedDirs); |
| 112 | |
| 113 | $hints = ''; |
| 114 | if (1 <= $numDirs) { |
| 115 | $hints .= sprintf( |
| 116 | '<p class="alert alert-danger">The following %s could not be created or %s not writable:</p><ul>', |
| 117 | 1 < $numDirs ? 'directories' : 'directory', |
| 118 | 1 < $numDirs ? 'are' : 'is', |
| 119 | ); |
| 120 | foreach ($failedDirs as $failedDir) { |
| 121 | $hints .= "<li>{$failedDir}</li>\n"; |
| 122 | } |
| 123 | |
| 124 | return ( |
| 125 | $hints |
| 126 | . '</ul><p class="alert alert-danger">Please create ' |
| 127 | . (1 < $numDirs ? 'them' : 'it') |
| 128 | . ' manually and/or change access to chmod 775 (or greater if necessary).</p>' |
| 129 | ); |
| 130 | } |
| 131 | |
| 132 | return null; |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Checks some non-critical settings and print some hints. |
| 137 | * |
| 138 | * @return string[] |
| 139 | */ |
| 140 | public function checkNoncriticalSettings(): array |
| 141 | { |
| 142 | $hints = []; |
| 143 | if (!$this->system->getHttpsStatus()) { |
| 144 | $hints[] = |
| 145 | '<p class="alert alert-warning">HTTPS support is not enabled in your web server.' |
| 146 | . ' To ensure the security of your data and protect against potential vulnerabilities,' |
| 147 | . ' we highly recommend enabling HTTPS. Please configure your web server to support HTTPS as soon as' |
| 148 | . ' possible.</p>'; |
| 149 | } |
| 150 | |
| 151 | if (!extension_loaded('gd')) { |
| 152 | $hints[] = |
| 153 | '<p class="alert alert-warning">You don\'t have GD support enabled in your PHP installation. ' |
| 154 | . "Please enable GD support in your php.ini file otherwise you can't use Captchas for spam protection." |
| 155 | . '</p>'; |
| 156 | } |
| 157 | |
| 158 | if (!function_exists('imagettftext')) { |
| 159 | $hints[] = |
| 160 | '<p class="alert alert-warning">You don\'t have Freetype support enabled in the GD extension ' |
| 161 | . ' of your PHP installation. Please enable Freetype support in GD extension otherwise the Captchas ' |
| 162 | . 'for spam protection will be quite easy to break.</p>'; |
| 163 | } |
| 164 | |
| 165 | if (!extension_loaded('curl') || !extension_loaded('openssl')) { |
| 166 | $hints[] = |
| 167 | '<p class="alert alert-warning">You don\'t have cURL and/or OpenSSL support enabled in your ' |
| 168 | . 'PHP installation. Please enable cURL and/or OpenSSL support in your php.ini file otherwise you ' |
| 169 | . " can't use Elasticsearch.</p>"; |
| 170 | } |
| 171 | |
| 172 | if (!extension_loaded('fileinfo')) { |
| 173 | $hints[] = |
| 174 | '<p class="alert alert-warning">You don\'t have Fileinfo support enabled in your PHP ' |
| 175 | . "installation. Please enable Fileinfo support in your php.ini file otherwise you can't use our " |
| 176 | . 'backup/restore functionality.</p>'; |
| 177 | } |
| 178 | |
| 179 | if (!extension_loaded('sodium')) { |
| 180 | $hints[] = |
| 181 | '<p class="alert alert-warning">You don\'t have Sodium support enabled in your PHP ' |
| 182 | . "installation. Please enable Sodium support in your php.ini file otherwise you can't use our " |
| 183 | . 'backup/restore functionality.</p>'; |
| 184 | } |
| 185 | |
| 186 | return $hints; |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * @throws Exception |
| 191 | */ |
| 192 | public function checkInitialRewriteBasePath(Request $request): bool |
| 193 | { |
| 194 | $basePath = $request->getBasePath(); |
| 195 | if (str_ends_with($basePath, 'setup')) { |
| 196 | $basePath = substr($basePath, offset: 0, length: -strlen('setup')); |
| 197 | } |
| 198 | |
| 199 | $htaccessPath = (string) PMF_ROOT_DIR . '/.htaccess'; |
| 200 | |
| 201 | $htaccessUpdater = new HtaccessUpdater(); |
| 202 | return $htaccessUpdater->updateRewriteBase($htaccessPath, $basePath); |
| 203 | } |
| 204 | |
| 205 | /** |
| 206 | * Starts the installation. |
| 207 | * |
| 208 | * Delegates to InstallationInputValidator for input parsing and |
| 209 | * InstallationRunner for the actual installation steps. |
| 210 | * |
| 211 | * @param array<string, mixed>|null $setup Optional setup array (for programmatic/test installs) |
| 212 | * @throws Exception|AuthenticationException |
| 213 | * @throws \Exception |
| 214 | */ |
| 215 | public function startInstall(?array $setup = null): void |
| 216 | { |
| 217 | $rootDir = $setup['rootDir'] ?? PMF_ROOT_DIR; |
| 218 | if ($this->isAlreadyInstalled((string) $rootDir)) { |
| 219 | throw new Exception( |
| 220 | 'Looks like phpMyFAQ is already installed! Please use the <a href="../update">update</a>.', |
| 221 | ); |
| 222 | } |
| 223 | |
| 224 | $validator = new InstallationInputValidator(); |
| 225 | $input = $validator->validate($setup); |
| 226 | |
| 227 | $runner = new InstallationRunner($this->system); |
| 228 | $runner->run($input); |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Checks the minimum required PHP version, defined in System class. |
| 233 | * Returns true if it's okay. |
| 234 | */ |
| 235 | public function checkMinimumPhpVersion(): bool |
| 236 | { |
| 237 | return version_compare(PHP_VERSION, System::VERSION_MINIMUM_PHP) >= 0; |
| 238 | } |
| 239 | |
| 240 | public function hasLdapSupport(): bool |
| 241 | { |
| 242 | return extension_loaded('ldap'); |
| 243 | } |
| 244 | |
| 245 | public function hasElasticsearchSupport(): bool |
| 246 | { |
| 247 | return extension_loaded('curl') && extension_loaded('openssl'); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Returns the form inputs array, delegating to DefaultDataSeeder. |
| 252 | * |
| 253 | * @return array<array<string, int|string>> |
| 254 | * @throws \Exception |
| 255 | */ |
| 256 | public function getFormInputs(): array |
| 257 | { |
| 258 | $seeder = new DefaultDataSeeder(); |
| 259 | return $seeder->getFormInputs(); |
| 260 | } |
| 261 | |
| 262 | private function isAlreadyInstalled(string $rootDir): bool |
| 263 | { |
| 264 | return is_file(rtrim($rootDir, DIRECTORY_SEPARATOR) . '/content/core/config/database.php'); |
| 265 | } |
| 266 | } |