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2026-08-30 22:02:02 +00:00
commit b6bd2277f5
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+<?php
+
+/**
+ * ParserTest.php
+ *
+ * @since     2011-05-23
+ * @category  Library
+ * @package   Pdfparser
+ * @author    Nicola Asuni <info@tecnick.com>
+ * @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
+ * @license   https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
+ * @link      https://github.com/tecnickcom/tc-lib-pdf-parser
+ *
+ * This file is part of tc-lib-pdf-parser software library.
+ */
+
+namespace Test;
+
+use Com\Tecnick\Pdf\Parser\Parser;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Filter Test
+ *
+ * @since     2011-05-23
+ * @category  Library
+ * @package   PdfParser
+ * @author    Nicola Asuni <info@tecnick.com>
+ * @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
+ * @license   https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
+ * @link      https://github.com/tecnickcom/tc-lib-pdf-parser
+ */
+class ParserTest extends TestCase
+{
+    /**
+     * @throws \Com\Tecnick\Pdf\Parser\Exception
+     */
+    #[DataProvider('getParseProvider')]
+    public function testParse(string $filename, string $hash): void
+    {
+        $cfg = [
+            'ignore_filter_errors' => true,
+        ];
+        $rawdata = \file_get_contents($filename);
+        $this->assertNotFalse($rawdata);
+        $parser = new Parser($cfg);
+        $data = $parser->parse($rawdata);
+        $this->assertEquals($hash, \md5(\serialize($data)));
+    }
+
+    /**
+     * @return array<int, array{0:string, 1:string}>
+     */
+    public static function getParseProvider(): array
+    {
+        return [
+            ['resources/test/example_005.pdf', '510a5ea860470dae0781f4bd8d5eb250'],
+            ['resources/test/example_036.pdf', '2869501cf41a4c4a0402c00832329e25'],
+            ['resources/test/example_046.pdf', 'cfaee514b9c09aa282b4e2a8f0061a3d'],
+        ];
+    }
+
+    /**
+     * @throws \Com\Tecnick\Pdf\Parser\Exception
+     */
+    public function testParseHandlesMultiRangeXrefIndexRegression(): void
+    {
+        $parser = new Parser(['ignore_filter_errors' => true]);
+        $data = $parser->parse($this->buildMultiRangeXrefIndexPdf());
+
+        $xref = $data[0];
+        $objects = $data[1];
+
+        $this->assertSame('41_0', $xref['trailer']['root']);
+        $this->assertArrayNotHasKey('encrypt', $xref['trailer']);
+
+        $this->assertNotNull($objects['41_0'][0] ?? null);
+        $this->assertSame('<<', $objects['41_0'][0][0]);
+        $this->assertNotNull($objects['42_0'][0] ?? null);
+        $this->assertSame('<<', $objects['42_0'][0][0]);
+        $this->assertNotNull($objects['43_0'][0] ?? null);
+        $this->assertSame('<<', $objects['43_0'][0][0]);
+
+        $this->assertSame('7aa83a972ca79bafe26be3620b7512e2', \md5(\serialize($data)));
+    }
+
+    private function buildMultiRangeXrefIndexPdf(): string
+    {
+        $pdf = "%PDF-1.7\n";
+        $offsets = [];
+        $addObject = static function (string &$pdfData, array &$objOffsets, int $objNum, string $body): void {
+            $objOffsets[$objNum] = \strlen($pdfData);
+            $pdfData .= $objNum . " 0 obj\n" . $body . "\nendobj\n";
+        };
+
+        $addObject($pdf, $offsets, 3, '<< /Dummy 3 >>');
+        $addObject($pdf, $offsets, 15, '<< /Dummy 15 >>');
+        $addObject($pdf, $offsets, 17, '<< /Dummy 17 >>');
+        $addObject($pdf, $offsets, 18, '<< /Dummy 18 >>');
+        $addObject($pdf, $offsets, 41, '<< /Type /Catalog /Pages 42 0 R >>');
+        $addObject($pdf, $offsets, 42, '<< /Type /Pages /Count 1 /Kids [43 0 R] >>');
+        $addObject($pdf, $offsets, 43, '<< /Type /Page /Parent 42 0 R /MediaBox [0 0 10 10] >>');
+
+        $indexObjects = [3, 15, 17, 18, 41, 42, 43];
+        $bytes = [];
+        foreach ($indexObjects as $objNum) {
+            $offset = (int) ($offsets[$objNum] ?? 0);
+            $bytes[] = 0;
+            $bytes[] = 1;
+            $bytes[] = ($offset >> 16) & 0xff;
+            $bytes[] = ($offset >> 8) & 0xff;
+            $bytes[] = $offset & 0xff;
+        }
+
+        $stream = \pack('C*', ...$bytes);
+        $streamLen = \strlen($stream);
+        $xrefBody =
+            '<< /Type /XRef'
+            . ' /Size 60'
+            . ' /Root 41 0 R'
+            . ' /Index [3 1 15 1 17 2 41 3]'
+            . ' /W [1 3 0]'
+            . ' /Length '
+            . $streamLen
+            . ' /DecodeParms << /Columns 4 /Predictor 12 >>'
+            . " >>\nstream\n"
+            . $stream
+            . "\nendstream";
+
+        $addObject($pdf, $offsets, 50, $xrefBody);
+
+        $startxref = (int) ($offsets[50] ?? 0);
+        $pdf .= "startxref\n" . $startxref . "\n%%EOF";
+
+        return $pdf;
+    }
+}