18977836254

Committed 31 Oct 2025 03:49PM UTC coverage: 39.514%. First build

Build # 18977836254

Build Type

Pull #5704

github

Committed by

web-flow

Commit Message

Merge 6c1d99483 into 3b0bfae1f

Pull Request Pull Request #5704: fix: only validate real signatures

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75.42

/lib/Handler/SignEngine/Pkcs12Handler.php

<?php

declare(strict_types=1);
/**
 * SPDX-FileCopyrightText: 2020-2024 LibreCode coop and contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Libresign\Handler\SignEngine;

use DateTime;
use OCA\Libresign\AppInfo\Application;
use OCA\Libresign\Exception\LibresignException;
use OCA\Libresign\Handler\CertificateEngine\CertificateEngineFactory;
use OCA\Libresign\Handler\CertificateEngine\OrderCertificatesTrait;
use OCA\Libresign\Handler\FooterHandler;
use OCA\Libresign\Service\FolderService;
use OCA\Libresign\Vendor\phpseclib3\File\ASN1;
use OCP\Files\File;
use OCP\IAppConfig;
use OCP\IL10N;
use OCP\ITempManager;
use Psr\Log\LoggerInterface;

class Pkcs12Handler extends SignEngineHandler {
        use OrderCertificatesTrait;
        protected string $certificate = '';
        private array $signaturesFromPoppler = [];
        private ?JSignPdfHandler $jSignPdfHandler = null;

        public function __construct(
                private FolderService $folderService,
                private IAppConfig $appConfig,
                protected CertificateEngineFactory $certificateEngineFactory,
                private IL10N $l10n,
                private FooterHandler $footerHandler,
                private ITempManager $tempManager,
                private LoggerInterface $logger,
        ) {
                parent::__construct($l10n, $folderService, $logger);
        }

        /**
         * @throws LibresignException When is not a signed file
         */
        private function getSignatures($resource): iterable {
                $content = stream_get_contents($resource);
                preg_match_all(
                        '/ByteRange\s*\[\s*(?<offset1>\d+)\s+(?<length1>\d+)\s+(?<offset2>\d+)\s+(?<length2>\d+)\s*\]/',
                        $content,
                        $bytes
                );
                if (empty($bytes['offset1']) || empty($bytes['length1']) || empty($bytes['offset2']) || empty($bytes['length2'])) {
                        throw new LibresignException($this->l10n->t('Unsigned file.'));
                }

                for ($i = 0; $i < count($bytes['offset1']); $i++) {
                        $offset1 = (int)$bytes['offset1'][$i];
                        $length1 = (int)$bytes['length1'][$i];
                        $offset2 = (int)$bytes['offset2'][$i];

                        $signatureStart = $offset1 + $length1 + 1;
                        $signatureLength = $offset2 - $signatureStart - 1;

                        rewind($resource);

                        $signature = stream_get_contents($resource, $signatureLength, $signatureStart);

                        yield hex2bin($signature);
                }

                $this->tempManager->clean();
        }

        /**
         * @param resource $resource
         * @throws LibresignException When is not a signed file
         * @return array
         */
        #[\Override]
        public function getCertificateChain($resource): array {
                $certificates = [];

                foreach ($this->getSignatures($resource) as $signature) {
                        $certificates[] = $this->processSignature($resource, $signature);
                }
                return $certificates;
        }

        private function processSignature($resource, ?string $signature): array {
                $result = [];

                if (!$signature) {
                        $result['chain'][0]['signature_validation'] = $this->getReadableSigState('Digest Mismatch.');
                        return $result;
                }

                $decoded = ASN1::decodeBER($signature);
                $result = $this->extractTimestampData($decoded, $result);

                $chain = $this->extractCertificateChain($signature);
                if (!empty($chain)) {
                        $result['chain'] = $this->orderCertificates($chain);
                        $result = $this->enrichLeafWithPopplerData($resource, $result);
                }
                return $result;
        }

        private function extractTimestampData(array $decoded, array $result): array {
                $tsa = new TSA();

                try {
                        $timestampData = $tsa->extract($decoded);
                        if (!empty($timestampData['genTime']) || !empty($timestampData['policy']) || !empty($timestampData['serialNumber'])) {
                                $result['timestamp'] = $timestampData;
                        }
                } catch (\Throwable $e) {
                }

                if (!isset($result['signingTime']) || !$result['signingTime'] instanceof \DateTime) {
                        $result['signingTime'] = $tsa->getSigninTime($decoded);
                }
                return $result;
        }

        private function extractCertificateChain(string $signature): array {
                $pkcs7PemSignature = $this->der2pem($signature);
                $pemCertificates = [];

                if (!openssl_pkcs7_read($pkcs7PemSignature, $pemCertificates)) {
                        return [];
                }

                $chain = [];
                foreach ($pemCertificates as $index => $pemCertificate) {
                        $parsed = openssl_x509_parse($pemCertificate);
                        if ($parsed) {
                                $parsed['signature_validation'] = [
                                        'id' => 1,
                                        'label' => $this->l10n->t('Signature is valid.'),
                                ];
                                $chain[$index] = $parsed;
                        }
                }

                return $chain;
        }

        private function enrichLeafWithPopplerData($resource, array $result): array {
                if (empty($result['chain'])) {
                        return $result;
                }

                $popplerOnlyFields = ['field', 'range', 'certificate_validation'];
                if (!isset($result['chain'][0]['subject'])) {
                        return $result;
                }
                $needPoppler = false;
                foreach ($popplerOnlyFields as $field) {
                        if (empty($result['chain'][0][$field])) {
                                $needPoppler = true;
                                break;
                        }
                }
                if (!isset($result['chain'][0]['signature_validation']) || $result['chain'][0]['signature_validation']['id'] !== 1) {
                        $needPoppler = true;
                }
                if (!$needPoppler) {
                        return $result;
                }
                $popplerChain = $this->chainFromPoppler($result['chain'][0]['subject'], $resource);
                if (empty($popplerChain)) {
                        return $result;
                }
                foreach ($popplerOnlyFields as $field) {
                        if (isset($popplerChain[$field])) {
                                $result['chain'][0][$field] = $popplerChain[$field];
                        }
                }
                if (!isset($result['chain'][0]['signature_validation']) || $result['chain'][0]['signature_validation']['id'] !== 1) {
                        if (isset($popplerChain['signature_validation'])) {
                                $result['chain'][0]['signature_validation'] = $popplerChain['signature_validation'];
                        }
                }
                return $result;
        }

        private function chainFromPoppler(array $subject, $resource): array {
                $fromFallback = $this->popplerUtilsPdfSignFallback($resource);
                foreach ($fromFallback as $popplerSig) {
                        if (!isset($popplerSig['chain'][0]['subject'])) {
                                continue;
                        }
                        if ($popplerSig['chain'][0]['subject'] == $subject) {
                                return $popplerSig['chain'][0];
                        }
                }
                return [];
        }

        private function popplerUtilsPdfSignFallback($resource): array {
                if (!empty($this->signaturesFromPoppler)) {
                        return $this->signaturesFromPoppler;
                }
                if (shell_exec('which pdfsig') === null) {
                        return $this->signaturesFromPoppler;
                }
                rewind($resource);
                $content = stream_get_contents($resource);
                $tempFile = $this->tempManager->getTemporaryFile('file.pdf');
                file_put_contents($tempFile, $content);

                $content = shell_exec('env TZ=UTC pdfsig ' . $tempFile);
                if (empty($content)) {
                        return $this->signaturesFromPoppler;
                }
                $lines = explode("\n", $content);

                $lastSignature = 0;
                foreach ($lines as $item) {
                        $isFirstLevel = preg_match('/^Signature\s#(\d)/', $item, $match);
                        if ($isFirstLevel) {
                                $lastSignature = (int)$match[1] - 1;
                                $this->signaturesFromPoppler[$lastSignature] = [];
                                continue;
                        }

                        $match = [];
                        $isSecondLevel = preg_match('/^\s+-\s(?<key>.+):\s(?<value>.*)/', $item, $match);
                        if ($isSecondLevel) {
                                switch ((string)$match['key']) {
                                        case 'Signing Time':
                                                $this->signaturesFromPoppler[$lastSignature]['signingTime'] = DateTime::createFromFormat('M d Y H:i:s', $match['value'], new \DateTimeZone('UTC'));
                                                break;
                                        case 'Signer full Distinguished Name':
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['subject'] = $this->parseDistinguishedNameWithMultipleValues($match['value']);
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['name'] = $match['value'];
                                                break;
                                        case 'Signing Hash Algorithm':
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['signatureTypeSN'] = $match['value'];
                                                break;
                                        case 'Signature Validation':
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['signature_validation'] = $this->getReadableSigState($match['value']);
                                                break;
                                        case 'Certificate Validation':
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['certificate_validation'] = $this->getReadableCertState($match['value']);
                                                break;
                                        case 'Signed Ranges':
                                                if (preg_match('/\[(\d+) - (\d+)\], \[(\d+) - (\d+)\]/', $match['value'], $ranges)) {
                                                        $this->signaturesFromPoppler[$lastSignature]['chain'][0]['range'] = [
                                                                'offset1' => (int)$ranges[1],
                                                                'length1' => (int)$ranges[2],
                                                                'offset2' => (int)$ranges[3],
                                                                'length2' => (int)$ranges[4],
                                                        ];
                                                }
                                                break;
                                        case 'Signature Field Name':
                                                $this->signaturesFromPoppler[$lastSignature]['chain'][0]['field'] = $match['value'];
                                                break;
                                        case 'Signature Validation':
                                        case 'Signature Type':
                                        case 'Total document signed':
                                        case 'Not total document signed':
                                        default:
                                                break;
                                }
                        }
                }
                return $this->signaturesFromPoppler;
        }

        private function getReadableSigState(string $status) {
                return match ($status) {
                        'Signature is Valid.' => [
                                'id' => 1,
                                'label' => $this->l10n->t('Signature is valid.'),
                        ],
                        'Signature is Invalid.' => [
                                'id' => 2,
                                'label' => $this->l10n->t('Signature is invalid.'),
                        ],
                        'Digest Mismatch.' => [
                                'id' => 3,
                                'label' => $this->l10n->t('Digest mismatch.'),
                        ],
                        "Document isn't signed or corrupted data." => [
                                'id' => 4,
                                'label' => $this->l10n->t("Document isn't signed or corrupted data."),
                        ],
                        'Signature has not yet been verified.' => [
                                'id' => 5,
                                'label' => $this->l10n->t('Signature has not yet been verified.'),
                        ],
                        default => [
                                'id' => 6,
                                'label' => $this->l10n->t('Unknown validation failure.'),
                        ],
                };
        }


        private function getReadableCertState(string $status) {
                return match ($status) {
                        'Certificate is Trusted.' => [
                                'id' => 1,
                                'label' => $this->l10n->t('Certificate is trusted.'),
                        ],
                        "Certificate issuer isn't Trusted." => [
                                'id' => 2,
                                'label' => $this->l10n->t("Certificate issuer isn't trusted."),
                        ],
                        'Certificate issuer is unknown.' => [
                                'id' => 3,
                                'label' => $this->l10n->t('Certificate issuer is unknown.'),
                        ],
                        'Certificate has been Revoked.' => [
                                'id' => 4,
                                'label' => $this->l10n->t('Certificate has been revoked.'),
                        ],
                        'Certificate has Expired' => [
                                'id' => 5,
                                'label' => $this->l10n->t('Certificate has expired'),
                        ],
                        'Certificate has not yet been verified.' => [
                                'id' => 6,
                                'label' => $this->l10n->t('Certificate has not yet been verified.'),
                        ],
                        default => [
                                'id' => 7,
                                'label' => $this->l10n->t('Unknown issue with Certificate or corrupted data.')
                        ],
                };
        }


        private function parseDistinguishedNameWithMultipleValues(string $dn): array {
                $result = [];
                $pairs = preg_split('/,(?=(?:[^"]*"[^"]*")*[^"]*$)/', $dn);

                foreach ($pairs as $pair) {
                        [$key, $value] = explode('=', $pair, 2);
                        if (empty($key) || empty($value)) {
                                return $result;
                        }
                        $key = trim($key);
                        $value = trim($value);
                        $value = trim($value, '"');

                        if (!isset($result[$key])) {
                                $result[$key] = $value;
                        } else {
                                if (!is_array($result[$key])) {
                                        $result[$key] = [$result[$key]];
                                }
                                $result[$key][] = $value;
                        }
                }

                return $result;
        }

        private function der2pem($derData) {
                $pem = chunk_split(base64_encode((string)$derData), 64, "\n");
                $pem = "-----BEGIN CERTIFICATE-----\n" . $pem . "-----END CERTIFICATE-----\n";
                return $pem;
        }

        private function getHandler(): SignEngineHandler {
                $sign_engine = $this->appConfig->getValueString(Application::APP_ID, 'sign_engine', 'JSignPdf');
                $property = lcfirst($sign_engine) . 'Handler';
                if (!property_exists($this, $property)) {
                        throw new LibresignException($this->l10n->t('Invalid Sign engine.'), 400);
                }
                $classHandler = 'OCA\\Libresign\\Handler\\SignEngine\\' . ucfirst($property);
                if (!$this->$property instanceof $classHandler) {
                        $this->$property = \OCP\Server::get($classHandler);
                }
                return $this->$property;
        }

        #[\Override]
        public function sign(): File {
                $signedContent = $this->getHandler()
                        ->setCertificate($this->getCertificate())
                        ->setInputFile($this->getInputFile())
                        ->setPassword($this->getPassword())
                        ->setSignatureParams($this->getSignatureParams())
                        ->setVisibleElements($this->getVisibleElements())
                        ->getSignedContent();
                $this->getInputFile()->putContent($signedContent);
                return $this->getInputFile();
        }

        public function isHandlerOk(): bool {
                return $this->certificateEngineFactory->getEngine()->isSetupOk();
        }
}

1	<?php
2
3	declare(strict_types=1);
4	/**
5	* SPDX-FileCopyrightText: 2020-2024 LibreCode coop and contributors
6	* SPDX-License-Identifier: AGPL-3.0-or-later
7	*/
8
9	namespace OCA\Libresign\Handler\SignEngine;
10
11	use DateTime;
12	use OCA\Libresign\AppInfo\Application;
13	use OCA\Libresign\Exception\LibresignException;
14	use OCA\Libresign\Handler\CertificateEngine\CertificateEngineFactory;
15	use OCA\Libresign\Handler\CertificateEngine\OrderCertificatesTrait;
16	use OCA\Libresign\Handler\FooterHandler;
17	use OCA\Libresign\Service\FolderService;
18	use OCA\Libresign\Vendor\phpseclib3\File\ASN1;
19	use OCP\Files\File;
20	use OCP\IAppConfig;
21	use OCP\IL10N;
22	use OCP\ITempManager;
23	use Psr\Log\LoggerInterface;
24
25	class Pkcs12Handler extends SignEngineHandler {
26	use OrderCertificatesTrait;
27	protected string $certificate = '';
28	private array $signaturesFromPoppler = [];
29	private ?JSignPdfHandler $jSignPdfHandler = null;
30
31	public function __construct(
32	private FolderService $folderService,
33	private IAppConfig $appConfig,
34	protected CertificateEngineFactory $certificateEngineFactory,
35	private IL10N $l10n,
36	private FooterHandler $footerHandler,
37	private ITempManager $tempManager,
38	private LoggerInterface $logger,
39	) {
40	parent::__construct($l10n, $folderService, $logger);	51✔
41	}
42
43	/**
44	* @throws LibresignException When is not a signed file
45	*/
46	private function getSignatures($resource): iterable {
47	$content = stream_get_contents($resource);	6✔
48	preg_match_all(	6✔
49	'/ByteRange\s\[\s(?<offset1>\d+)\s+(?<length1>\d+)\s+(?<offset2>\d+)\s+(?<length2>\d+)\s*\]/',	6✔
50	$content,	6✔
51	$bytes	6✔
52	);	6✔
53	if (empty($bytes['offset1']) \|\| empty($bytes['length1']) \|\| empty($bytes['offset2']) \|\| empty($bytes['length2'])) {	6✔
54	throw new LibresignException($this->l10n->t('Unsigned file.'));	4✔
55	}
56
57	for ($i = 0; $i < count($bytes['offset1']); $i++) {	2✔
58	$offset1 = (int)$bytes['offset1'][$i];	2✔
59	$length1 = (int)$bytes['length1'][$i];	2✔
60	$offset2 = (int)$bytes['offset2'][$i];	2✔
61
62	$signatureStart = $offset1 + $length1 + 1;	2✔
63	$signatureLength = $offset2 - $signatureStart - 1;	2✔
64
65	rewind($resource);	2✔
66
67	$signature = stream_get_contents($resource, $signatureLength, $signatureStart);	2✔
68
69	yield hex2bin($signature);	2✔
70	}
71
72	$this->tempManager->clean();	2✔
73	}
74
75	/**
76	* @param resource $resource
77	* @throws LibresignException When is not a signed file
78	* @return array
79	*/
80	#[\Override]
81	public function getCertificateChain($resource): array {
82	$certificates = [];	6✔
83
84	foreach ($this->getSignatures($resource) as $signature) {	6✔
85	$certificates[] = $this->processSignature($resource, $signature);	2✔
86	}
87	return $certificates;	2✔
88	}
89
90	private function processSignature($resource, ?string $signature): array {
91	$result = [];	2✔
92
93	if (!$signature) {	2✔
94	$result['chain'][0]['signature_validation'] = $this->getReadableSigState('Digest Mismatch.');	×
95	return $result;	×
96	}
97
98	$decoded = ASN1::decodeBER($signature);	2✔
99	$result = $this->extractTimestampData($decoded, $result);	2✔
100
101	$chain = $this->extractCertificateChain($signature);	2✔
102	if (!empty($chain)) {	2✔
103	$result['chain'] = $this->orderCertificates($chain);	2✔
104	$result = $this->enrichLeafWithPopplerData($resource, $result);	2✔
105	}
106	return $result;	2✔
107	}
108
109	private function extractTimestampData(array $decoded, array $result): array {
110	$tsa = new TSA();	2✔
111
112	try {
113	$timestampData = $tsa->extract($decoded);	2✔
114	if (!empty($timestampData['genTime']) \|\| !empty($timestampData['policy']) \|\| !empty($timestampData['serialNumber'])) {	2✔
115	$result['timestamp'] = $timestampData;	2✔
116	}
117	} catch (\Throwable $e) {	×
118	}
119
120	if (!isset($result['signingTime']) \|\| !$result['signingTime'] instanceof \DateTime) {	2✔
121	$result['signingTime'] = $tsa->getSigninTime($decoded);	2✔
122	}
123	return $result;	2✔
124	}
125
126	private function extractCertificateChain(string $signature): array {
127	$pkcs7PemSignature = $this->der2pem($signature);	2✔
128	$pemCertificates = [];	2✔
129
130	if (!openssl_pkcs7_read($pkcs7PemSignature, $pemCertificates)) {	2✔
131	return [];	×
132	}
133
134	$chain = [];	2✔
135	foreach ($pemCertificates as $index => $pemCertificate) {	2✔
136	$parsed = openssl_x509_parse($pemCertificate);	2✔
137	if ($parsed) {	2✔
138	$parsed['signature_validation'] = [	2✔
139	'id' => 1,	2✔
140	'label' => $this->l10n->t('Signature is valid.'),	2✔
141	];	2✔
142	$chain[$index] = $parsed;	2✔
143	}
144	}
145
146	return $chain;	2✔
147	}
148
149	private function enrichLeafWithPopplerData($resource, array $result): array {
150	if (empty($result['chain'])) {	2✔
NEW 151	return $result;	×
152	}
153
154	$popplerOnlyFields = ['field', 'range', 'certificate_validation'];	2✔
155	if (!isset($result['chain'][0]['subject'])) {	2✔
NEW 156	return $result;	×
157	}
158	$needPoppler = false;	2✔
159	foreach ($popplerOnlyFields as $field) {	2✔
160	if (empty($result['chain'][0][$field])) {	2✔
161	$needPoppler = true;	2✔
162	break;	2✔
163	}
164	}
165	if (!isset($result['chain'][0]['signature_validation']) \|\| $result['chain'][0]['signature_validation']['id'] !== 1) {	2✔
NEW 166	$needPoppler = true;	×
167	}
168	if (!$needPoppler) {	2✔
NEW 169	return $result;	×
170	}
171	$popplerChain = $this->chainFromPoppler($result['chain'][0]['subject'], $resource);	2✔
172	if (empty($popplerChain)) {	2✔
NEW 173	return $result;	×
174	}
175	foreach ($popplerOnlyFields as $field) {	2✔
176	if (isset($popplerChain[$field])) {	2✔
177	$result['chain'][0][$field] = $popplerChain[$field];	2✔
178	}
179	}
180	if (!isset($result['chain'][0]['signature_validation']) \|\| $result['chain'][0]['signature_validation']['id'] !== 1) {	2✔
NEW 181	if (isset($popplerChain['signature_validation'])) {	×
NEW 182	$result['chain'][0]['signature_validation'] = $popplerChain['signature_validation'];	×
183	}
184	}
185	return $result;	2✔
186	}
187
188	private function chainFromPoppler(array $subject, $resource): array {
189	$fromFallback = $this->popplerUtilsPdfSignFallback($resource);	2✔
190	foreach ($fromFallback as $popplerSig) {	2✔
191	if (!isset($popplerSig['chain'][0]['subject'])) {	2✔
NEW 192	continue;	×
193	}
194	if ($popplerSig['chain'][0]['subject'] == $subject) {	2✔
195	return $popplerSig['chain'][0];	2✔
196	}
197	}
NEW 198	return [];	×
199	}
200
201	private function popplerUtilsPdfSignFallback($resource): array {
202	if (!empty($this->signaturesFromPoppler)) {	2✔
203	return $this->signaturesFromPoppler;	1✔
204	}
205	if (shell_exec('which pdfsig') === null) {	1✔
NEW 206	return $this->signaturesFromPoppler;	×
207	}
208	rewind($resource);	1✔
209	$content = stream_get_contents($resource);	1✔
210	$tempFile = $this->tempManager->getTemporaryFile('file.pdf');	1✔
211	file_put_contents($tempFile, $content);	1✔
212
213	$content = shell_exec('env TZ=UTC pdfsig ' . $tempFile);	1✔
214	if (empty($content)) {	1✔
NEW 215	return $this->signaturesFromPoppler;	×
216	}
217	$lines = explode("\n", $content);	1✔
218
219	$lastSignature = 0;	1✔
220	foreach ($lines as $item) {	1✔
221	$isFirstLevel = preg_match('/^Signature\s#(\d)/', $item, $match);	1✔
222	if ($isFirstLevel) {	1✔
223	$lastSignature = (int)$match[1] - 1;	1✔
224	$this->signaturesFromPoppler[$lastSignature] = [];	1✔
225	continue;	1✔
226	}
227
228	$match = [];	1✔
229	$isSecondLevel = preg_match('/^\s+-\s(?<key>.+):\s(?<value>.*)/', $item, $match);	1✔
230	if ($isSecondLevel) {	1✔
231	switch ((string)$match['key']) {	1✔
232	case 'Signing Time':	1✔
233	$this->signaturesFromPoppler[$lastSignature]['signingTime'] = DateTime::createFromFormat('M d Y H:i:s', $match['value'], new \DateTimeZone('UTC'));	1✔
234	break;	1✔
235	case 'Signer full Distinguished Name':	1✔
236	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['subject'] = $this->parseDistinguishedNameWithMultipleValues($match['value']);	1✔
237	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['name'] = $match['value'];	1✔
238	break;	1✔
239	case 'Signing Hash Algorithm':	1✔
240	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['signatureTypeSN'] = $match['value'];	1✔
241	break;	1✔
242	case 'Signature Validation':	1✔
243	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['signature_validation'] = $this->getReadableSigState($match['value']);	1✔
244	break;	1✔
245	case 'Certificate Validation':	1✔
246	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['certificate_validation'] = $this->getReadableCertState($match['value']);	1✔
247	break;	1✔
248	case 'Signed Ranges':	1✔
249	if (preg_match('/\[(\d+) - (\d+)\], \[(\d+) - (\d+)\]/', $match['value'], $ranges)) {	1✔
250	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['range'] = [	1✔
251	'offset1' => (int)$ranges[1],	1✔
252	'length1' => (int)$ranges[2],	1✔
253	'offset2' => (int)$ranges[3],	1✔
254	'length2' => (int)$ranges[4],	1✔
255	];	1✔
256	}
257	break;	1✔
258	case 'Signature Field Name':	1✔
259	$this->signaturesFromPoppler[$lastSignature]['chain'][0]['field'] = $match['value'];	1✔
260	break;	1✔
261	case 'Signature Validation':	1✔
262	case 'Signature Type':	1✔
263	case 'Total document signed':	1✔
264	case 'Not total document signed':	1✔
265	default:
266	break;	1✔
267	}
268	}
269	}
270	return $this->signaturesFromPoppler;	1✔
271	}
272
273	private function getReadableSigState(string $status) {
274	return match ($status) {	1✔
275	'Signature is Valid.' => [	1✔
276	'id' => 1,	1✔
277	'label' => $this->l10n->t('Signature is valid.'),	1✔
278	],	1✔
279	'Signature is Invalid.' => [	×
280	'id' => 2,	×
281	'label' => $this->l10n->t('Signature is invalid.'),	×
282	],	×
283	'Digest Mismatch.' => [	×
284	'id' => 3,	×
285	'label' => $this->l10n->t('Digest mismatch.'),	×
286	],	×
287	"Document isn't signed or corrupted data." => [	×
288	'id' => 4,	×
289	'label' => $this->l10n->t("Document isn't signed or corrupted data."),	×
290	],	×
291	'Signature has not yet been verified.' => [	×
292	'id' => 5,	×
293	'label' => $this->l10n->t('Signature has not yet been verified.'),	×
294	],	×
295	default => [	1✔
296	'id' => 6,	1✔
297	'label' => $this->l10n->t('Unknown validation failure.'),	1✔
298	],	1✔
299	};	1✔
300	}
301
302
303	private function getReadableCertState(string $status) {
304	return match ($status) {	1✔
305	'Certificate is Trusted.' => [	×
306	'id' => 1,	×
307	'label' => $this->l10n->t('Certificate is trusted.'),	×
308	],	×
309	"Certificate issuer isn't Trusted." => [	×
310	'id' => 2,	×
311	'label' => $this->l10n->t("Certificate issuer isn't trusted."),	×
312	],	×
313	'Certificate issuer is unknown.' => [	1✔
314	'id' => 3,	1✔
315	'label' => $this->l10n->t('Certificate issuer is unknown.'),	1✔
316	],	1✔
317	'Certificate has been Revoked.' => [	×
318	'id' => 4,	×
319	'label' => $this->l10n->t('Certificate has been revoked.'),	×
320	],	×
321	'Certificate has Expired' => [	×
322	'id' => 5,	×
323	'label' => $this->l10n->t('Certificate has expired'),	×
324	],	×
325	'Certificate has not yet been verified.' => [	×
326	'id' => 6,	×
327	'label' => $this->l10n->t('Certificate has not yet been verified.'),	×
328	],	×
329	default => [	1✔
330	'id' => 7,	1✔
331	'label' => $this->l10n->t('Unknown issue with Certificate or corrupted data.')	1✔
332	],	1✔
333	};	1✔
334	}
335
336
337	private function parseDistinguishedNameWithMultipleValues(string $dn): array {
338	$result = [];	1✔
339	$pairs = preg_split('/,(?=(?:[^"]"[^"]")[^"]$)/', $dn);	1✔
340
341	foreach ($pairs as $pair) {	1✔
342	[$key, $value] = explode('=', $pair, 2);	1✔
343	if (empty($key) \|\| empty($value)) {	1✔
NEW 344	return $result;	×
345	}
346	$key = trim($key);	1✔
347	$value = trim($value);	1✔
348	$value = trim($value, '"');	1✔
349
350	if (!isset($result[$key])) {	1✔
351	$result[$key] = $value;	1✔
352	} else {
353	if (!is_array($result[$key])) {	×
354	$result[$key] = [$result[$key]];	×
355	}
356	$result[$key][] = $value;	×
357	}
358	}
359
360	return $result;	1✔
361	}
362
363	private function der2pem($derData) {
364	$pem = chunk_split(base64_encode((string)$derData), 64, "\n");	2✔
365	$pem = "-----BEGIN CERTIFICATE-----\n" . $pem . "-----END CERTIFICATE-----\n";	2✔
366	return $pem;	2✔
367	}
368
369	private function getHandler(): SignEngineHandler {
370	$sign_engine = $this->appConfig->getValueString(Application::APP_ID, 'sign_engine', 'JSignPdf');	1✔
371	$property = lcfirst($sign_engine) . 'Handler';	1✔
372	if (!property_exists($this, $property)) {	1✔
373	throw new LibresignException($this->l10n->t('Invalid Sign engine.'), 400);	×
374	}
375	$classHandler = 'OCA\\Libresign\\Handler\\SignEngine\\' . ucfirst($property);	1✔
376	if (!$this->$property instanceof $classHandler) {	1✔
377	$this->$property = \OCP\Server::get($classHandler);	1✔
378	}
379	return $this->$property;	1✔
380	}
381
382	#[\Override]
383	public function sign(): File {
384	$signedContent = $this->getHandler()	1✔
385	->setCertificate($this->getCertificate())	1✔
386	->setInputFile($this->getInputFile())	1✔
387	->setPassword($this->getPassword())	1✔
388	->setSignatureParams($this->getSignatureParams())	1✔
389	->setVisibleElements($this->getVisibleElements())	1✔
390	->getSignedContent();	1✔
391	$this->getInputFile()->putContent($signedContent);	×
392	return $this->getInputFile();	×
393	}
394
395	public function isHandlerOk(): bool {
396	return $this->certificateEngineFactory->getEngine()->isSetupOk();	1✔
397	}
398	}

LibreSign / libresign / 18977836254

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