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Cover encrypted XLSX file decryption errors

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2026-09-02 17:20:56 +08:00
parent 08e59dcc6d
commit 8a98547e28
1 changed files with 27 additions and 0 deletions
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tests/PhpSpreadsheetTests/Reader/Xlsx/AgileEncryptionTest.php
+27
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@@ -282,6 +282,27 @@ class AgileEncryptionTest extends TestCase
}
}
public function testDecryptFileRejectsTamperedEncryptedPackage(): void
{
$package = AgileEncryption::encrypt('package', 'password', 128, 'SHA1', 10);
$lastByte = strlen($package['encryptedPackage']) - 1;
$package['encryptedPackage'][$lastByte] = chr(ord($package['encryptedPackage'][$lastByte]) ^ 1);
$inputFilename = tempnam(sys_get_temp_dir(), 'phpspreadsheet-input-');
$outputFilename = tempnam(sys_get_temp_dir(), 'phpspreadsheet-output-');
self::assertNotFalse($inputFilename);
self::assertNotFalse($outputFilename);
file_put_contents($inputFilename, $package['encryptedPackage']);
try {
$this->expectException(Exception::class);
$this->expectExceptionMessage('integrity check failed');
AgileEncryption::decryptFile(AgileEncryption::parse($package['encryptionInfo']), $inputFilename, $outputFilename, 'password');
} finally {
unlink($inputFilename);
unlink($outputFilename);
}
}
public function testRejectsUnrepresentableEncryptedPackageSize(): void
{
$method = new ReflectionMethod(AgileEncryption::class, 'unpackSize');
@@ -298,4 +319,10 @@ class AgileEncryptionTest extends TestCase
$this->expectExceptionMessage('too large for this platform');
$method->invoke(null, 0, 1, 4, 2147483647);
}
public function testAcceptsRepresentableEncryptedPackageSizeOn32BitPlatform(): void
{
$method = new ReflectionMethod(AgileEncryption::class, 'sizeFromWords');
self::assertSame(123, $method->invoke(null, 123, 0, 4, 2147483647));
}
}