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<?php |
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namespace Wallabag\CoreBundle\Helper; |
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use Html2Text\Html2Text; |
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use JMS\Serializer\SerializationContext; |
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use JMS\Serializer\SerializerBuilder; |
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use PHPePub\Core\EPub; |
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use PHPePub\Core\Structure\OPF\DublinCore; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface; |
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use Symfony\Component\Translation\TranslatorInterface; |
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use Wallabag\CoreBundle\Entity\Entry; |
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use Wallabag\UserBundle\Entity\User; |
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/** |
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* This class doesn't have unit test BUT it's fully covered by a functional test with ExportControllerTest. |
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*/ |
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class EntriesExport |
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{ |
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private $wallabagUrl; |
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private $logoPath; |
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private $translator; |
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private $title = ''; |
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private $entries = []; |
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private $author = 'wallabag'; |
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private $language = ''; |
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private $user; |
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/** |
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* @param TranslatorInterface $translator Translator service |
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* @param string $wallabagUrl Wallabag instance url |
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* @param string $logoPath Path to the logo FROM THE BUNDLE SCOPE |
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* @param TokenStorageInterface $tokenStorage Needed to retrieve the current user |
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*/ |
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public function __construct(TranslatorInterface $translator, $wallabagUrl, $logoPath, TokenStorageInterface $tokenStorage) |
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{ |
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$this->translator = $translator; |
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$this->wallabagUrl = $wallabagUrl; |
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$this->logoPath = $logoPath; |
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/* @var User $user */ |
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$this->user = $tokenStorage->getToken() ? $tokenStorage->getToken()->getUser() : null; |
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if (null === $this->user || !\is_object($this->user)) { |
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return; |
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} |
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} |
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/** |
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* Define entries. |
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* |
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* @param array|Entry $entries An array of entries or one entry |
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* |
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* @return EntriesExport |
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*/ |
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public function setEntries($entries) |
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{ |
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if (!\is_array($entries)) { |
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$this->language = $entries->getLanguage(); |
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$entries = [$entries]; |
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} |
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$this->entries = $entries; |
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return $this; |
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} |
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/** |
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* Sets the category of which we want to get articles, or just one entry. |
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* |
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* @param string $method Method to get articles |
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* |
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* @return EntriesExport |
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*/ |
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public function updateTitle($method) |
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{ |
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$this->title = $method . ' articles'; |
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if ('entry' === $method) { |
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$this->title = $this->entries[0]->getTitle(); |
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} |
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return $this; |
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} |
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/** |
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* Sets the author for one entry or category. |
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* |
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* The publishers are used, or the domain name if empty. |
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* |
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* @param string $method Method to get articles |
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* |
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* @return EntriesExport |
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*/ |
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public function updateAuthor($method) |
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{ |
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if ('entry' !== $method) { |
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$this->author = 'Various authors'; |
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return $this; |
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} |
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$this->author = $this->entries[0]->getDomainName(); |
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$publishedBy = $this->entries[0]->getPublishedBy(); |
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if (!empty($publishedBy)) { |
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$this->author = implode(', ', $publishedBy); |
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} |
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return $this; |
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} |
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/** |
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* Sets the output format. |
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* |
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* @param string $format |
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* |
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* @return Response |
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*/ |
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public function exportAs($format) |
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{ |
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$functionName = 'produce' . ucfirst($format); |
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if (method_exists($this, $functionName)) { |
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return $this->$functionName(); |
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} |
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throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format)); |
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} |
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public function exportJsonData() |
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{ |
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return $this->prepareSerializingContent('json'); |
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} |
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/** |
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* Use PHPePub to dump a .epub file. |
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* |
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* @return Response |
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*/ |
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private function produceEpub() |
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{ |
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/* |
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* Start and End of the book |
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*/ |
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$content_start = |
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" |
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. "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n" |
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. '<head>' |
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. "<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n" |
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. "<title>wallabag articles book</title>\n" |
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. "</head>\n" |
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. "<body>\n"; |
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$bookEnd = "</body>\n</html>\n"; |
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$book = new EPub(EPub::BOOK_VERSION_EPUB3); |
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/* |
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* Book metadata |
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*/ |
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$book->setTitle($this->title); |
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// Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc. |
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$book->setLanguage($this->language); |
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$book->setDescription('Some articles saved on my wallabag'); |
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$book->setAuthor($this->author, $this->author); |
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// I hope this is a non existant address :) |
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$book->setPublisher('wallabag', 'wallabag'); |
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// Strictly not needed as the book date defaults to time(). |
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$book->setDate(time()); |
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$book->setSourceURL($this->wallabagUrl); |
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$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP'); |
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$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag'); |
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$entryIds = []; |
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$entryCount = \count($this->entries); |
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$i = 0; |
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/* |
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* Adding actual entries |
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*/ |
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// set tags as subjects |
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foreach ($this->entries as $entry) { |
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++$i; |
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/* |
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* Front page |
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* Set if there's only one entry in the given set |
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*/ |
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if (1 === $entryCount && null !== $entry->getPreviewPicture()) { |
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$book->setCoverImage($entry->getPreviewPicture()); |
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} |
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foreach ($entry->getTags() as $tag) { |
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$book->setSubject($tag->getLabel()); |
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} |
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$filename = sha1(sprintf('%s:%s', $entry->getUrl(), $entry->getTitle())); |
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$publishedBy = $entry->getPublishedBy(); |
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$authors = $this->translator->trans('export.unknown'); |
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if (!empty($publishedBy)) { |
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$authors = implode(',', $publishedBy); |
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} |
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$publishedAt = $entry->getPublishedAt(); |
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$publishedDate = $this->translator->trans('export.unknown'); |
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if (!empty($publishedAt)) { |
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$publishedDate = $entry->getPublishedAt()->format('Y-m-d'); |
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} |
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$readingTime = $entry->getReadingTime() / $this->user->getConfig()->getReadingSpeed() * 200; |
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$titlepage = $content_start . |
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'<h1>' . $entry->getTitle() . '</h1>' . |
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'<dl>' . |
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'<dt>' . $this->translator->trans('entry.view.published_by') . '</dt><dd>' . $authors . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.published_on') . '</dt><dd>' . $publishedDate . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.reading_time') . '</dt><dd>' . $this->translator->trans('entry.metadata.reading_time_minutes_short', ['%readingTime%' => $readingTime]) . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.added_on') . '</dt><dd>' . $entry->getCreatedAt()->format('Y-m-d') . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.address') . '</dt><dd><a href="' . $entry->getUrl() . '">' . $entry->getUrl() . '</a></dd>' . |
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'</dl>' . |
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$bookEnd; |
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$book->addChapter("Entry {$i} of {$entryCount}", "{$filename}_cover.html", $titlepage, true, EPub::EXTERNAL_REF_ADD); |
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$chapter = $content_start . $entry->getContent() . $bookEnd; |
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$entryIds[] = $entry->getId(); |
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$book->addChapter($entry->getTitle(), "{$filename}.html", $chapter, true, EPub::EXTERNAL_REF_ADD); |
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} |
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$book->addChapter('Notices', 'Cover2.html', $content_start . $this->getExportInformation('PHPePub') . $bookEnd); |
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// Could also be the ISBN number, prefered for published books, or a UUID. |
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$hash = sha1(sprintf('%s:%s', $this->wallabagUrl, implode(',', $entryIds))); |
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$book->setIdentifier(sprintf('urn:wallabag:%s', $hash), EPub::IDENTIFIER_URI); |
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return Response::create( |
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$book->getBook(), |
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200, |
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[ |
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'Content-Description' => 'File Transfer', |
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'Content-type' => 'application/epub+zip', |
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'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.epub"', |
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'Content-Transfer-Encoding' => 'binary', |
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] |
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); |
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} |
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/** |
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* Use PHPMobi to dump a .mobi file. |
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* |
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* @return Response |
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*/ |
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private function produceMobi() |
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{ |
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$mobi = new \MOBI(); |
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$content = new \MOBIFile(); |
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/* |
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* Book metadata |
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*/ |
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$content->set('title', $this->title); |
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$content->set('author', $this->author); |
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$content->set('subject', $this->title); |
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/* |
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* Front page |
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*/ |
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$content->appendParagraph($this->getExportInformation('PHPMobi')); |
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if (file_exists($this->logoPath)) { |
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$content->appendImage(imagecreatefrompng($this->logoPath)); |
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} |
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$content->appendPageBreak(); |
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/* |
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* Adding actual entries |
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*/ |
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foreach ($this->entries as $entry) { |
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$content->appendChapterTitle($entry->getTitle()); |
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$content->appendParagraph($entry->getContent()); |
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$content->appendPageBreak(); |
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} |
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$mobi->setContentProvider($content); |
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return Response::create( |
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$mobi->toString(), |
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200, |
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[ |
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'Accept-Ranges' => 'bytes', |
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'Content-Description' => 'File Transfer', |
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'Content-type' => 'application/x-mobipocket-ebook', |
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'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.mobi"', |
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'Content-Transfer-Encoding' => 'binary', |
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] |
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); |
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} |
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/** |
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* Use TCPDF to dump a .pdf file. |
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* |
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* @return Response |
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*/ |
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private function producePdf() |
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{ |
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$pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); |
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/* |
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* Book metadata |
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*/ |
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$pdf->SetCreator(PDF_CREATOR); |
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$pdf->SetAuthor($this->author); |
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$pdf->SetTitle($this->title); |
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$pdf->SetSubject('Articles via wallabag'); |
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$pdf->SetKeywords('wallabag'); |
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/* |
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* Adding actual entries |
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*/ |
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foreach ($this->entries as $entry) { |
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foreach ($entry->getTags() as $tag) { |
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$pdf->SetKeywords($tag->getLabel()); |
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} |
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$publishedBy = $entry->getPublishedBy(); |
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$authors = $this->translator->trans('export.unknown'); |
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if (!empty($publishedBy)) { |
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$authors = implode(',', $publishedBy); |
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} |
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$readingTime = $entry->getReadingTime() / $this->user->getConfig()->getReadingSpeed() * 200; |
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$pdf->addPage(); |
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$html = '<h1>' . $entry->getTitle() . '</h1>' . |
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'<dl>' . |
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'<dt>' . $this->translator->trans('entry.view.published_by') . '</dt><dd>' . $authors . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.reading_time') . '</dt><dd>' . $this->translator->trans('entry.metadata.reading_time_minutes_short', ['%readingTime%' => $readingTime]) . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.added_on') . '</dt><dd>' . $entry->getCreatedAt()->format('Y-m-d') . '</dd>' . |
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'<dt>' . $this->translator->trans('entry.metadata.address') . '</dt><dd><a href="' . $entry->getUrl() . '">' . $entry->getUrl() . '</a></dd>' . |
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'</dl>'; |
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$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true); |
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$pdf->AddPage(); |
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$html = '<h1>' . $entry->getTitle() . '</h1>'; |
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$html .= $entry->getContent(); |
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$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true); |
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} |
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/* |
354
|
|
|
* Last page |
355
|
|
|
*/ |
356
|
|
|
$pdf->AddPage(); |
357
|
|
|
$html = $this->getExportInformation('tcpdf'); |
358
|
|
|
|
359
|
|
|
$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true); |
360
|
|
|
|
361
|
|
|
// set image scale factor |
362
|
|
|
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO); |
363
|
|
|
|
364
|
|
|
return Response::create( |
365
|
|
|
$pdf->Output('', 'S'), |
366
|
|
|
200, |
367
|
|
|
[ |
368
|
|
|
'Content-Description' => 'File Transfer', |
369
|
|
|
'Content-type' => 'application/pdf', |
370
|
|
|
'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.pdf"', |
371
|
|
|
'Content-Transfer-Encoding' => 'binary', |
372
|
|
|
] |
373
|
|
|
); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
/** |
377
|
|
|
* Inspired from CsvFileDumper. |
378
|
|
|
* |
379
|
|
|
* @return Response |
380
|
|
|
*/ |
381
|
|
|
private function produceCsv() |
382
|
|
|
{ |
383
|
|
|
$delimiter = ';'; |
384
|
|
|
$enclosure = '"'; |
385
|
|
|
$handle = fopen('php://memory', 'b+r'); |
386
|
|
|
|
387
|
|
|
fputcsv($handle, ['Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language', 'Creation date'], $delimiter, $enclosure); |
388
|
|
|
|
389
|
|
|
foreach ($this->entries as $entry) { |
390
|
|
|
fputcsv( |
391
|
|
|
$handle, |
392
|
|
|
[ |
393
|
|
|
$entry->getTitle(), |
394
|
|
|
$entry->getURL(), |
395
|
|
|
// remove new line to avoid crazy results |
396
|
|
|
str_replace(["\r\n", "\r", "\n"], '', $entry->getContent()), |
397
|
|
|
implode(', ', $entry->getTags()->toArray()), |
398
|
|
|
$entry->getMimetype(), |
399
|
|
|
$entry->getLanguage(), |
400
|
|
|
$entry->getCreatedAt()->format('d/m/Y h:i:s'), |
401
|
|
|
], |
402
|
|
|
$delimiter, |
403
|
|
|
$enclosure |
404
|
|
|
); |
405
|
|
|
} |
406
|
|
|
|
407
|
|
|
rewind($handle); |
408
|
|
|
$output = stream_get_contents($handle); |
409
|
|
|
fclose($handle); |
410
|
|
|
|
411
|
|
|
return Response::create( |
412
|
|
|
$output, |
413
|
|
|
200, |
414
|
|
|
[ |
415
|
|
|
'Content-type' => 'application/csv', |
416
|
|
|
'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.csv"', |
417
|
|
|
'Content-Transfer-Encoding' => 'UTF-8', |
418
|
|
|
] |
419
|
|
|
); |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
/** |
423
|
|
|
* Dump a JSON file. |
424
|
|
|
* |
425
|
|
|
* @return Response |
426
|
|
|
*/ |
427
|
|
|
private function produceJson() |
428
|
|
|
{ |
429
|
|
|
return Response::create( |
430
|
|
|
$this->prepareSerializingContent('json'), |
431
|
|
|
200, |
432
|
|
|
[ |
433
|
|
|
'Content-type' => 'application/json', |
434
|
|
|
'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.json"', |
435
|
|
|
'Content-Transfer-Encoding' => 'UTF-8', |
436
|
|
|
] |
437
|
|
|
); |
438
|
|
|
} |
439
|
|
|
|
440
|
|
|
/** |
441
|
|
|
* Dump a XML file. |
442
|
|
|
* |
443
|
|
|
* @return Response |
444
|
|
|
*/ |
445
|
|
|
private function produceXml() |
446
|
|
|
{ |
447
|
|
|
return Response::create( |
448
|
|
|
$this->prepareSerializingContent('xml'), |
449
|
|
|
200, |
450
|
|
|
[ |
451
|
|
|
'Content-type' => 'application/xml', |
452
|
|
|
'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.xml"', |
453
|
|
|
'Content-Transfer-Encoding' => 'UTF-8', |
454
|
|
|
] |
455
|
|
|
); |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
/** |
459
|
|
|
* Dump a TXT file. |
460
|
|
|
* |
461
|
|
|
* @return Response |
462
|
|
|
*/ |
463
|
|
|
private function produceTxt() |
464
|
|
|
{ |
465
|
|
|
$content = ''; |
466
|
|
|
$bar = str_repeat('=', 100); |
467
|
|
|
foreach ($this->entries as $entry) { |
468
|
|
|
$content .= "\n\n" . $bar . "\n\n" . $entry->getTitle() . "\n\n" . $bar . "\n\n"; |
469
|
|
|
$html = new Html2Text($entry->getContent(), ['do_links' => 'none', 'width' => 100]); |
470
|
|
|
$content .= $html->getText(); |
471
|
|
|
} |
472
|
|
|
|
473
|
|
|
return Response::create( |
474
|
|
|
$content, |
475
|
|
|
200, |
476
|
|
|
[ |
477
|
|
|
'Content-type' => 'text/plain', |
478
|
|
|
'Content-Disposition' => 'attachment; filename="' . $this->getSanitizedFilename() . '.txt"', |
479
|
|
|
'Content-Transfer-Encoding' => 'UTF-8', |
480
|
|
|
] |
481
|
|
|
); |
482
|
|
|
} |
483
|
|
|
|
484
|
|
|
/** |
485
|
|
|
* Return a Serializer object for producing processes that need it (JSON & XML). |
486
|
|
|
* |
487
|
|
|
* @param string $format |
488
|
|
|
* |
489
|
|
|
* @return string |
490
|
|
|
*/ |
491
|
|
|
private function prepareSerializingContent($format) |
492
|
|
|
{ |
493
|
|
|
$serializer = SerializerBuilder::create()->build(); |
494
|
|
|
|
495
|
|
|
return $serializer->serialize( |
496
|
|
|
$this->entries, |
497
|
|
|
$format, |
498
|
|
|
SerializationContext::create()->setGroups(['entries_for_user']) |
499
|
|
|
); |
500
|
|
|
} |
501
|
|
|
|
502
|
|
|
/** |
503
|
|
|
* Return a kind of footer / information for the epub. |
504
|
|
|
* |
505
|
|
|
* @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi |
506
|
|
|
* |
507
|
|
|
* @return string |
508
|
|
|
*/ |
509
|
|
|
private function getExportInformation($type) |
510
|
|
|
{ |
511
|
|
|
$info = $this->translator->trans('export.footer_template', [ |
512
|
|
|
'%method%' => $type, |
513
|
|
|
]); |
514
|
|
|
|
515
|
|
|
if ('tcpdf' === $type) { |
516
|
|
|
return str_replace('%IMAGE%', '<img src="' . $this->logoPath . '" />', $info); |
517
|
|
|
} |
518
|
|
|
|
519
|
|
|
return str_replace('%IMAGE%', '', $info); |
520
|
|
|
} |
521
|
|
|
|
522
|
|
|
/** |
523
|
|
|
* Return a sanitized version of the title by applying translit iconv |
524
|
|
|
* and removing non alphanumeric characters, - and space. |
525
|
|
|
* |
526
|
|
|
* @return string Sanitized filename |
527
|
|
|
*/ |
528
|
|
|
private function getSanitizedFilename() |
529
|
|
|
{ |
530
|
|
|
return preg_replace('/[^A-Za-z0-9\- \']/', '', iconv('utf-8', 'us-ascii//TRANSLIT', $this->title)); |
531
|
|
|
} |
532
|
|
|
} |
533
|
|
|
|