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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** @license For full copyright and license information, please see the LICENSE.md file. */ |
| 6 | |
| 7 | namespace App\Modules\Pdf\Infrastructure\Driver; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Modules\Pdf\Domain\Exception\PdfRenderingException; |
| 12 | use Mpdf\Mpdf; |
| 13 | use Mpdf\Output\Destination; |
| 14 | use Throwable; |
| 15 | |
| 16 | /** |
| 17 | * mPDF Library Driver Implementation. |
| 18 | * |
| 19 | * Provides high-fidelity PDF rendering with full support for CSS Paged Media, |
| 20 | * running headers/footers, UTF-8 character sets, watermark overlays, password encryption, |
| 21 | * and cryptographic X.509 PAdES digital signatures. |
| 22 | * |
| 23 | * @package App\Modules\Pdf\Infrastructure\Driver |
| 24 | */ |
| 25 | final class MpdfRendererDriver implements PdfRendererDriverInterface |
| 26 | { |
| 27 | /** |
| 28 | * MpdfRendererDriver constructor. |
| 29 | * |
| 30 | * @param HtmlPrintRendererDriver|null $fallbackDriver Fallback HTML driver if mPDF not loaded. |
| 31 | */ |
| 32 | public function __construct( |
| 33 | private readonly ?HtmlPrintRendererDriver $fallbackDriver = null |
| 34 | ) { |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * Renders HTML content into PDF binary document. |
| 39 | * |
| 40 | * @param string $html Composed HTML markup. |
| 41 | * @param array<string, mixed> $options Rendering configuration options. |
| 42 | * @return string Binary PDF document string. |
| 43 | */ |
| 44 | public function renderPdf(string $html, array $options = []): string |
| 45 | { |
| 46 | if (!class_exists(Mpdf::class)) { |
| 47 | if ($this->fallbackDriver !== null) { |
| 48 | return $this->fallbackDriver->renderPdf($html, $options); |
| 49 | } |
| 50 | throw PdfRenderingException::mpdfNotInstalled(); |
| 51 | } |
| 52 | |
| 53 | try { |
| 54 | $mpdfConfig = $this->buildMpdfConfig($options); |
| 55 | $mpdf = new Mpdf($mpdfConfig); |
| 56 | |
| 57 | $this->configureProtection($mpdf, $options); |
| 58 | $this->configureSignature($mpdf, $options); |
| 59 | $this->configureDecorations($mpdf, $options); |
| 60 | |
| 61 | $mpdf->WriteHTML($html); |
| 62 | |
| 63 | return (string)$mpdf->Output('', Destination::STRING_RETURN); |
| 64 | } catch (Throwable $e) { |
| 65 | throw PdfRenderingException::renderingFailed($e->getMessage(), $e); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Builds mPDF initialization configuration array. |
| 71 | * |
| 72 | * @param array<string, mixed> $options |
| 73 | * @return array<string, mixed> |
| 74 | */ |
| 75 | private function buildMpdfConfig(array $options): array |
| 76 | { |
| 77 | $format = (string)($options['format'] ?? 'A4'); |
| 78 | $orientation = (string)($options['orientation'] ?? 'portrait'); |
| 79 | $marginTop = (int)($options['margin_top'] ?? 15); |
| 80 | $marginBottom = (int)($options['margin_bottom'] ?? 15); |
| 81 | $marginLeft = (int)($options['margin_left'] ?? 15); |
| 82 | $marginRight = (int)($options['margin_right'] ?? 15); |
| 83 | $uid = function_exists('posix_getuid') ? (string)posix_getuid() : 'shared'; |
| 84 | $tempDir = sys_get_temp_dir() . '/mpdf_' . $uid; |
| 85 | |
| 86 | if (!is_dir($tempDir)) { |
| 87 | @mkdir($tempDir, 0700, true); |
| 88 | } |
| 89 | |
| 90 | return [ |
| 91 | 'mode' => 'utf-8', |
| 92 | 'format' => $format, |
| 93 | 'orientation' => str_starts_with(strtolower($orientation), 'l') ? 'L' : 'P', |
| 94 | 'margin_top' => $marginTop, |
| 95 | 'margin_bottom' => $marginBottom, |
| 96 | 'margin_left' => $marginLeft, |
| 97 | 'margin_right' => $marginRight, |
| 98 | 'tempDir' => $tempDir, |
| 99 | ]; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Applies password protection and permissions. |
| 104 | * |
| 105 | * @param array<string, mixed> $options |
| 106 | */ |
| 107 | private function configureProtection(Mpdf $mpdf, array $options): void |
| 108 | { |
| 109 | if (empty($options['password'])) { |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | $userPassword = (string)$options['password']; |
| 114 | $ownerPassword = (string)($options['owner_password'] ?? bin2hex(random_bytes(8))); |
| 115 | $permissions = isset($options['permissions']) && is_array($options['permissions']) |
| 116 | ? $options['permissions'] |
| 117 | : ['print', 'copy']; |
| 118 | |
| 119 | $mpdf->SetProtection($permissions, $userPassword, $ownerPassword); |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Applies digital X.509 PAdES signature. |
| 124 | * |
| 125 | * @param array<string, mixed> $options |
| 126 | */ |
| 127 | private function configureSignature(Mpdf $mpdf, array $options): void |
| 128 | { |
| 129 | if (empty($options['certificate_path']) || !file_exists((string)$options['certificate_path'])) { |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | $certPath = (string)$options['certificate_path']; |
| 134 | $keyPath = (string)($options['private_key_path'] ?? $certPath); |
| 135 | $certPass = (string)($options['certificate_password'] ?? ''); |
| 136 | $signatureInfo = [ |
| 137 | 'Name' => (string)($options['signature_name'] ?? 'Ammonly Enterprise Suite'), |
| 138 | 'Location' => (string)($options['signature_location'] ?? 'Warsaw, Poland'), |
| 139 | 'Reason' => (string)($options['signature_reason'] ?? 'Official Business Document Verification'), |
| 140 | 'ContactInfo' => (string)($options['signature_contact'] ?? 'support@ammonly.com'), |
| 141 | ]; |
| 142 | |
| 143 | if (method_exists($mpdf, 'SetSignature')) { |
| 144 | /** @phpstan-ignore method.notFound */ |
| 145 | $mpdf->SetSignature($certPath, $keyPath, $certPass, '', 1, $signatureInfo); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Applies watermark, header and footer. |
| 151 | * |
| 152 | * @param array<string, mixed> $options |
| 153 | */ |
| 154 | private function configureDecorations(Mpdf $mpdf, array $options): void |
| 155 | { |
| 156 | if (isset($options['watermark_text']) && (string)$options['watermark_text'] !== '') { |
| 157 | $mpdf->SetWatermarkText((string)$options['watermark_text']); |
| 158 | $mpdf->showWatermarkText = true; |
| 159 | } |
| 160 | if (isset($options['header_html']) && (string)$options['header_html'] !== '') { |
| 161 | $mpdf->SetHTMLHeader((string)$options['header_html']); |
| 162 | } |
| 163 | if (isset($options['footer_html']) && (string)$options['footer_html'] !== '') { |
| 164 | $mpdf->SetHTMLFooter((string)$options['footer_html']); |
| 165 | } |
| 166 | } |
| 167 | } |