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Start to implement jeidison/pdf-signe
Signed-off-by: Vitor Mattos <vitor@php.rio>
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<?php | ||
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declare(strict_types=1); | ||
/** | ||
* @copyright Copyright (c) 2023 Vitor Mattos <vitor@php.rio> | ||
* | ||
* @author Vitor Mattos <vitor@php.rio> | ||
* | ||
* @license GNU AGPL version 3 or any later version | ||
* | ||
* This program is free software: you can redistribute it and/or modify | ||
* it under the terms of the GNU Affero General Public License as | ||
* published by the Free Software Foundation, either version 3 of the | ||
* License, or (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU Affero General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Affero General Public License | ||
* along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
*/ | ||
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namespace OCA\Libresign\Handler; | ||
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use Jeidison\JSignPDF\JSignPDF; | ||
use Jeidison\JSignPDF\Sign\JSignParam; | ||
use OCA\Libresign\Exception\LibresignException; | ||
use OCP\AppFramework\Services\IAppConfig; | ||
use Psr\Log\LoggerInterface; | ||
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class PhpNativeHandler extends SignEngineHandler { | ||
/** @var JSignPDF */ | ||
private $jSignPdf; | ||
/** @var JSignParam */ | ||
private $jSignParam; | ||
public const VERSION = '2.2.2'; | ||
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public function __construct( | ||
private IAppConfig $appConfig, | ||
private LoggerInterface $logger, | ||
) { | ||
} | ||
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public function setJSignPdf(JSignPDF $jSignPdf): void { | ||
$this->jSignPdf = $jSignPdf; | ||
} | ||
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public function getJSignPdf(): JSignPDF { | ||
if (!$this->jSignPdf) { | ||
// @codeCoverageIgnoreStart | ||
$this->setJSignPdf(new JSignPDF()); | ||
// @codeCoverageIgnoreEnd | ||
} | ||
return $this->jSignPdf; | ||
} | ||
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/** | ||
* @psalm-suppress MixedReturnStatement | ||
*/ | ||
public function getJSignParam(): JSignParam { | ||
if (!$this->jSignParam) { | ||
$javaPath = $this->appConfig->getAppValue('java_path'); | ||
$this->jSignParam = (new JSignParam()) | ||
->setTempPath( | ||
$this->appConfig->getAppValue('jsignpdf_temp_path', sys_get_temp_dir() . DIRECTORY_SEPARATOR) | ||
) | ||
->setIsUseJavaInstalled(empty($javaPath)) | ||
->setjSignPdfJarPath( | ||
$this->appConfig->getAppValue('jsignpdf_jar_path', '/opt/jsignpdf-' . self::VERSION . '/JSignPdf.jar') | ||
); | ||
if (!empty($javaPath)) { | ||
if (!file_exists($javaPath)) { | ||
throw new \Exception('Invalid Java binary. Run occ libresign:install --java'); | ||
} | ||
$this->jSignParam->setJavaPath($javaPath); | ||
} | ||
} | ||
return $this->jSignParam; | ||
} | ||
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/** | ||
* @psalm-suppress MixedReturnStatement | ||
*/ | ||
public function sign(): string { | ||
$param = $this->getJSignParam() | ||
->setCertificate($this->getCertificate()) | ||
->setPdf($this->getInputFile()->getContent()) | ||
->setPassword($this->getPassword()); | ||
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$signed = $this->signUsingVisibleElements(); | ||
if ($signed) { | ||
return $signed; | ||
} | ||
$jSignPdf = $this->getJSignPdf(); | ||
$jSignPdf->setParam($param); | ||
return $this->signWrapper($jSignPdf); | ||
} | ||
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private function signUsingVisibleElements(): string { | ||
$visibleElements = $this->getvisibleElements(); | ||
if ($visibleElements) { | ||
$jSignPdf = $this->getJSignPdf(); | ||
$param = $this->getJSignParam(); | ||
foreach ($visibleElements as $element) { | ||
$param | ||
->setJSignParameters( | ||
$param->getJSignParameters() . | ||
' -pg ' . $element->getFileElement()->getPage() . | ||
' -llx ' . $element->getFileElement()->getLlx() . | ||
' -lly ' . $element->getFileElement()->getLly() . | ||
' -urx ' . $element->getFileElement()->getUrx() . | ||
' -ury ' . $element->getFileElement()->getUry() . | ||
' --l2-text ""' . | ||
' -V' . | ||
' --bg-path ' . $element->getTempFile() | ||
); | ||
$jSignPdf->setParam($param); | ||
$signed = $this->signWrapper($jSignPdf); | ||
} | ||
return $signed; | ||
} | ||
return ''; | ||
} | ||
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private function signWrapper(JSignPDF $jSignPDF): string { | ||
try { | ||
return $jSignPDF->sign(); | ||
} catch (\Throwable $th) { | ||
$rows = str_getcsv($th->getMessage()); | ||
$hashAlgorithm = array_filter($rows, fn ($r) => str_contains($r, 'The chosen hash algorithm')); | ||
if (!empty($hashAlgorithm)) { | ||
$hashAlgorithm = current($hashAlgorithm); | ||
$hashAlgorithm = trim($hashAlgorithm, 'INFO '); | ||
$hashAlgorithm = str_replace('\"', '"', $hashAlgorithm); | ||
$hashAlgorithm = preg_replace('/\.( )/', ".\n", $hashAlgorithm); | ||
throw new LibresignException($hashAlgorithm); | ||
} | ||
$this->logger->error('Error at JSignPdf side. LibreSign can not do nothing. Follow the error message: ' . $th->getMessage()); | ||
throw new \Exception($th->getMessage()); | ||
} | ||
} | ||
} |
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<template> | ||
<NcSettingsSection :name="name" :description="description"> | ||
<div class="signature-engine-content"> | ||
<NcSelect input-id="signatureEngine" | ||
:aria-label-combobox="description" | ||
:clearable="false" | ||
:value="value" | ||
:options="options" | ||
@input="saveEngine" /> | ||
</div> | ||
</NcSettingsSection> | ||
</template> | ||
<script> | ||
import { translate as t } from '@nextcloud/l10n' | ||
import NcSettingsSection from '@nextcloud/vue/dist/Components/NcSettingsSection.js' | ||
import NcSelect from '@nextcloud/vue/dist/Components/NcSelect.js' | ||
import { emit } from '@nextcloud/event-bus' | ||
import { loadState } from '@nextcloud/initial-state' | ||
export default { | ||
name: 'SignatureEngine', | ||
components: { | ||
NcSettingsSection, | ||
NcSelect, | ||
}, | ||
data() { | ||
return { | ||
name: t('libresign', 'Signature engine'), | ||
description: t('libresign', 'Select the signature engine to sign the documents'), | ||
value: [], | ||
options: [ | ||
{ id: 'JSignPdf', label: 'JSignPdf' }, | ||
{ id: 'PhpNative', label: 'PHP native' }, | ||
], | ||
} | ||
}, | ||
beforeMount() { | ||
const currentOption = {} | ||
currentOption.id = loadState('libresign', 'signature_engine', 'JSignPdf') | ||
if (currentOption.id === 'JSignPdf') { | ||
currentOption.label = 'JSignPdf' | ||
} else { | ||
currentOption.label = 'PHP native' | ||
} | ||
this.value = [currentOption] | ||
}, | ||
methods: { | ||
saveEngine(selected) { | ||
this.value = selected | ||
OCP.AppConfig.setValue('libresign', 'signature_engine', selected.id, { | ||
success() { | ||
emit('libresign:signature-engine:changed', selected.id) | ||
}, | ||
}) | ||
}, | ||
}, | ||
} | ||
</script> | ||
<style scoped> | ||
.signature-engine-content{ | ||
display: flex; | ||
flex-direction: column; | ||
} | ||
</style> |