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feat: register conversion provider
Signed-off-by: Elizabeth Danzberger <[email protected]>
1 parent d495a66 commit cc1b9f2

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‎lib/AppInfo/Application.php

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@@ -10,6 +10,7 @@
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use OCA\Files_Sharing\Event\ShareLinkAccessedEvent;
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use OCA\Richdocuments\Capabilities;
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use OCA\Richdocuments\Conversion\ConversionProvider;
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use OCA\Richdocuments\Db\WopiMapper;
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use OCA\Richdocuments\Listener\AddContentSecurityPolicyListener;
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use OCA\Richdocuments\Listener\AddFeaturePolicyListener;
@@ -81,6 +82,7 @@ public function register(IRegistrationContext $context): void {
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$context->registerPreviewProvider(OOXML::class, OOXML::MIMETYPE_REGEX);
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$context->registerPreviewProvider(OpenDocument::class, OpenDocument::MIMETYPE_REGEX);
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$context->registerPreviewProvider(Pdf::class, Pdf::MIMETYPE_REGEX);
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$context->registerFileConversionProvider(ConversionProvider::class);
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$context->registerNotifierService(Notifier::class);
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}
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‎lib/Conversion/ConversionProvider.php

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<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Richdocuments\Conversion;
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use OCA\Richdocuments\Service\RemoteService;
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use OCP\Files\Conversion\ConversionMimeProvider;
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use OCP\Files\Conversion\IConversionProvider;
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use OCP\Files\File;
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use OCP\IL10N;
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use OCP\L10N\IFactory;
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use Psr\Log\LoggerInterface;
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class ConversionProvider implements IConversionProvider {
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private IL10N $l10n;
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private const MIME_TYPES = [
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'documents' => [
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'doc' => 'application/msword',
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'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
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'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
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'ott' => 'application/vnd.oasis.opendocument.text-template',
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'odt' => 'application/vnd.oasis.opendocument.text',
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],
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'sheets' => [
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'xls' => 'application/vnd.ms-excel',
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'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
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'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
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'ots' => 'application/vnd.oasis.opendocument.spreadsheet-template',
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],
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'presentations' => [
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'ppt' => 'application/vnd.ms-powerpoint',
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'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
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'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
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'odp' => 'application/vnd.oasis.opendocument.presentation',
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'otp' => 'application/vnd.oasis.opendocument.presentation-template',
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],
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'drawings' => [
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'vsdx' => 'application/vnd.visio',
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'odg' => 'application/vnd.oasis.opendocument.graphics',
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'otg' => 'application/vnd.oasis.opendocument.graphics-template',
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],
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];
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public function __construct(
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private RemoteService $remoteService,
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private LoggerInterface $logger,
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IFactory $l10nFactory,
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) {
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$this->l10n = $l10nFactory->get('richdocuments');
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}
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public function getSupportedMimeTypes(): array {
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$documents = self::MIME_TYPES['documents'];
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$sheets = self::MIME_TYPES['sheets'];
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$presentations = self::MIME_TYPES['presentations'];
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$drawings = self::MIME_TYPES['drawings'];
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$pdfConversions = array_merge(
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[],
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self::MIME_TYPES['documents'],
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self::MIME_TYPES['sheets'],
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self::MIME_TYPES['presentations'],
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self::MIME_TYPES['drawings'],
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);
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$documentConversions = [
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// OpenDocument Text to Word Document
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'docx' => [$documents['odt']],
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// Word Document to OpenDocument Text
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'odt' => [$documents['doc'], $documents['docx']],
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// Documents to Rich Text Format
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'rtf' => [$documents['odt'], $documents['doc'], $documents['docx']],
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// Documents to text
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'txt' => [$documents['odt'], $documents['doc'], $documents['docx']],
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];
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$spreadsheetConversions = [
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// OpenDocument Spreadsheet to Excel Workbook
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'xlsx' => [$sheets['ods']],
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// Excel Workbook to OpenDocument Spreadsheet
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'ods' => [$sheets['xls'], $sheets['xlsx']],
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];
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$presentationConversions = [
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// OpenDocument Presentation to PowerPoint Presentation
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'pptx' => [$presentations['odp']],
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// PowerPoint Presentation to OpenDocument Presentation
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'odp' => [$presentations['ppt'], $presentations['pptx']],
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];
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$drawingConversions = [
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// OpenDocument Drawing to Portable Network Graphics
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'png' => [$drawings['odg']],
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// OpenDocument Drawing to Scalable Vector Graphics
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'svg' => [$drawings['odg']],
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];
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return [
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// PDF conversions
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...$this->getMimeProvidersFor($pdfConversions, 'application/pdf'),
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// Document conversions
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...$this->getMimeProvidersFor($documentConversions['docx'], $documents['docx']),
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...$this->getMimeProvidersFor($documentConversions['odt'], $documents['odt']),
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...$this->getMimeProvidersFor($documentConversions['rtf'], 'application/rtf'),
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...$this->getMimeProvidersFor($documentConversions['txt'], 'text/plain'),
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// Spreadsheet conversions
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...$this->getMimeProvidersFor($spreadsheetConversions['xlsx'], $sheets['xlsx']),
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...$this->getMimeProvidersFor($spreadsheetConversions['ods'], $sheets['ods']),
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// Presentation conversions
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...$this->getMimeProvidersFor($presentationConversions['pptx'], $presentations['pptx']),
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...$this->getMimeProvidersFor($presentationConversions['odp'], $presentations['odp']),
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// Drawing conversions
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...$this->getMimeProvidersFor($drawingConversions['png'], 'image/png'),
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...$this->getMimeProvidersFor($drawingConversions['svg'], 'image/svg+xml'),
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];
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}
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public function convertFile(File $file, string $targetMimeType): mixed {
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$targetFileExtension = $this->getExtensionForMimeType($targetMimeType);
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if ($targetFileExtension === null) {
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throw new \Exception($this->l10n->t(
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'Unable to determine the proper file extension for %1$s',
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[$targetMimeType]
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));
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}
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return $this->remoteService->convertFileTo($file, $targetFileExtension);
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}
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private function getMimeProvidersFor(array $inputMimeTypes, string $outputMimeType): array {
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$outputMimeInfo = $this->getMimeInfoFor($outputMimeType);
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if ($outputMimeInfo === null) {
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$this->logger->error($this->l10n->t('Unable to fetch information on $s', [$outputMimeType]));
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throw new \Exception();
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}
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$conversionMimeProviders = [];
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foreach ($inputMimeTypes as $mimeType) {
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$conversionMimeProviders[] = new ConversionMimeProvider(
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$mimeType,
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...$outputMimeInfo
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);
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}
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return $conversionMimeProviders;
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}
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private function getMimeInfoFor(string $targetMimeType): ?array {
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foreach ($this->getTargetMimeTypes() as $mimeType => $mimeInfo) {
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if ($mimeType === $targetMimeType) {
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return [
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'to' => $mimeType,
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...$mimeInfo,
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];
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}
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}
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return null;
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}
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private function getTargetMimeTypes(): array {
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$documents = self::MIME_TYPES['documents'];
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$sheets = self::MIME_TYPES['sheets'];
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$presentations = self::MIME_TYPES['presentations'];
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return [
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'application/pdf' => [
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'extension' => 'pdf',
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'displayName' => $this->l10n->t('Portable Document Format (.pdf)'),
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],
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'image/png' => [
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'extension' => 'png',
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'displayName' => $this->l10n->t('Image (.png)'),
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],
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'image/svg+xml' => [
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'extension' => 'svg',
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'displayName' => $this->l10n->t('Image (.svg)'),
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],
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'application/rtf' => [
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'extension' => 'rtf',
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'displayName' => $this->l10n->t('Text (.rtf)'),
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],
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'text/plain' => [
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'extension' => 'txt',
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'displayName' => $this->l10n->t('Text (.txt)'),
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],
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$documents['docx'] => [
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'extension' => 'docx',
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'displayName' => $this->l10n->t('Word Document (.docx)'),
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],
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$documents['odt'] => [
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'extension' => 'odt',
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'displayName' => $this->l10n->t('OpenDocument Text (.odt)'),
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],
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$sheets['xlsx'] => [
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'extension' => 'xlsx',
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'displayName' => $this->l10n->t('Excel Workbook (.xlsx)'),
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],
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$sheets['ods'] => [
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'extension' => 'ods',
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'displayName' => $this->l10n->t('OpenDocument Spreadsheet (.ods)'),
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],
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$presentations['pptx'] => [
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'extension' => 'pptx',
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'displayName' => $this->l10n->t('PowerPoint Presentation (.pptx)'),
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],
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$presentations['odp'] => [
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'extension' => 'odp',
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'displayName' => $this->l10n->t('OpenDocument Presentation (.odp)'),
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],
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];
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}
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private function getExtensionForMimeType(string $mimeType): ?string {
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foreach ($this->getTargetMimeTypes() as $targetMimeType => $targetMimeInfo) {
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if ($targetMimeType === $mimeType) {
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return $targetMimeInfo['extension'];
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}
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}
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return null;
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}
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}

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