X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=src%2FWallabag%2FCoreBundle%2FHelper%2FContentProxy.php;h=ddeffa77d090a6f23c3380f8156df34c87553d93;hb=4dface66707688ea440a6a7569795a85631d1ff0;hp=2dd70e51db50464732c1dbda235dc93b7c442282;hpb=558d9aabab7e01c2e2b506aa362c70a568b953aa;p=github%2Fwallabag%2Fwallabag.git diff --git a/src/Wallabag/CoreBundle/Helper/ContentProxy.php b/src/Wallabag/CoreBundle/Helper/ContentProxy.php index 2dd70e51..ddeffa77 100644 --- a/src/Wallabag/CoreBundle/Helper/ContentProxy.php +++ b/src/Wallabag/CoreBundle/Helper/ContentProxy.php @@ -3,33 +3,50 @@ namespace Wallabag\CoreBundle\Helper; use Graby\Graby; +use Psr\Log\LoggerInterface as Logger; use Wallabag\CoreBundle\Entity\Entry; +use Wallabag\CoreBundle\Entity\Tag; +use Wallabag\CoreBundle\Tools\Utils; +use Wallabag\CoreBundle\Repository\TagRepository; /** * This kind of proxy class take care of getting the content from an url - * and update the entry with what it found + * and update the entry with what it found. */ class ContentProxy { protected $graby; + protected $tagger; + protected $logger; + protected $tagRepository; - public function __construct(Graby $graby) + public function __construct(Graby $graby, RuleBasedTagger $tagger, TagRepository $tagRepository, Logger $logger) { $this->graby = $graby; + $this->tagger = $tagger; + $this->logger = $logger; + $this->tagRepository = $tagRepository; } /** * Fetch content using graby and hydrate given entry with results information. - * In case we couldn't find content, we'll try to use Open Graph data + * In case we couldn't find content, we'll try to use Open Graph data. * - * @param Entry $entry Entry to update - * @param string $url Url to grab content for + * We can also force the content, in case of an import from the v1 for example, so the function won't + * fetch the content from the website but rather use information given with the $content parameter. + * + * @param Entry $entry Entry to update + * @param string $url Url to grab content for + * @param array $content An array with AT LEAST keys title, html, url, language & content_type to skip the fetchContent from the url * * @return Entry */ - public function updateEntry(Entry $entry, $url) + public function updateEntry(Entry $entry, $url, array $content = []) { - $content = $this->graby->fetchContent($url); + // do we have to fetch the content or the provided one is ok? + if (empty($content) || false === $this->validateContent($content)) { + $content = $this->graby->fetchContent($url); + } $title = $content['title']; if (!$title && isset($content['open_graph']['og_title'])) { @@ -49,12 +66,257 @@ class ContentProxy $entry->setUrl($content['url'] ?: $url); $entry->setTitle($title); $entry->setContent($html); + $entry->setLanguage($content['language']); $entry->setMimetype($content['content_type']); + $entry->setReadingTime(Utils::getReadingTime($html)); + + $domainName = parse_url($entry->getUrl(), PHP_URL_HOST); + if (false !== $domainName) { + $entry->setDomainName($domainName); + } if (isset($content['open_graph']['og_image'])) { $entry->setPreviewPicture($content['open_graph']['og_image']); } + try { + $this->tagger->tag($entry); + } catch (\Exception $e) { + $this->logger->error('Error while trying to automatically tag an entry.', [ + 'entry_url' => $url, + 'error_msg' => $e->getMessage(), + ]); + } + return $entry; } + + /** + * Assign some tags to an entry. + * + * @param Entry $entry + * @param array|string $tags An array of tag or a string coma separated of tag + * @param array $entitiesReady Entities from the EntityManager which are persisted but not yet flushed + * It is mostly to fix duplicate tag on import @see http://stackoverflow.com/a/7879164/569101 + */ + public function assignTagsToEntry(Entry $entry, $tags, array $entitiesReady = []) + { + if (!is_array($tags)) { + $tags = explode(',', $tags); + } + + // keeps only Tag entity from the "not yet flushed entities" + $tagsNotYetFlushed = []; + foreach ($entitiesReady as $entity) { + if ($entity instanceof Tag) { + $tagsNotYetFlushed[$entity->getLabel()] = $entity; + } + } + + foreach ($tags as $label) { + $label = trim($label); + + // avoid empty tag + if (0 === strlen($label)) { + continue; + } + + if (isset($tagsNotYetFlushed[$label])) { + $tagEntity = $tagsNotYetFlushed[$label]; + } else { + $tagEntity = $this->tagRepository->findOneByLabel($label); + + if (is_null($tagEntity)) { + $tagEntity = new Tag(); + $tagEntity->setLabel($label); + } + } + + // only add the tag on the entry if the relation doesn't exist + if (false === $entry->getTags()->contains($tagEntity)) { + $entry->addTag($tagEntity); + } + } + } + + /** + * Validate that the given content as enough value to be used + * instead of fetch the content from the url. + * + * @param array $content + * + * @return bool true if valid otherwise false + */ + private function validateContent(array $content) + { + return isset($content['title']) && isset($content['html']) && isset($content['url']) && isset($content['language']) && isset($content['content_type']); + } + + /** + * Changing pictures URL in article content. + */ + public static function filterPicture($content, $url, $id) + { + $matches = array(); + $processing_pictures = array(); // list of processing image to avoid processing the same pictures twice + preg_match_all('#<\s*(img)[^>]+src="([^"]*)"[^>]*>#Si', $content, $matches, PREG_SET_ORDER); + foreach ($matches as $i => $link) { + $link[1] = trim($link[1]); + if (!preg_match('#^(([a-z]+://)|(\#))#', $link[1])) { + $absolute_path = self::_getAbsoluteLink($link[2], $url); + $filename = basename(parse_url($absolute_path, PHP_URL_PATH)); + $directory = self::_createAssetsDirectory($id); + $fullpath = $directory.'/'.$filename; + + if (in_array($absolute_path, $processing_pictures) === true) { + // replace picture's URL only if processing is OK : already processing -> go to next picture + continue; + } + + if (self::_downloadPictures($absolute_path, $fullpath) === true) { + $content = str_replace($matches[$i][2], Tools::getPocheUrl().$fullpath, $content); + } + + $processing_pictures[] = $absolute_path; + } + } + + return $content; + } + + /** + * Get absolute URL. + */ + private static function _getAbsoluteLink($relativeLink, $url) + { + /* return if already absolute URL */ + if (parse_url($relativeLink, PHP_URL_SCHEME) != '') { + return $relativeLink; + } + + /* queries and anchors */ + if ($relativeLink[0] == '#' || $relativeLink[0] == '?') { + return $url.$relativeLink; + } + + /* parse base URL and convert to local variables: + $scheme, $host, $path */ + extract(parse_url($url)); + + /* remove non-directory element from path */ + $path = preg_replace('#/[^/]*$#', '', $path); + + /* destroy path if relative url points to root */ + if ($relativeLink[0] == '/') { + $path = ''; + } + + /* dirty absolute URL */ + $abs = $host.$path.'/'.$relativeLink; + + /* replace '//' or '/./' or '/foo/../' with '/' */ + $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#'); + for ($n = 1; $n > 0; $abs = preg_replace($re, '/', $abs, -1, $n)) { + } + + /* absolute URL is ready! */ + return $scheme.'://'.$abs; + } + + /** + * Downloading pictures. + * + * @return bool true if the download and processing is OK, false else + */ + private static function _downloadPictures($absolute_path, $fullpath) + { + $rawdata = Tools::getFile($absolute_path); + $fullpath = urldecode($fullpath); + + if (file_exists($fullpath)) { + unlink($fullpath); + } + + // check extension + $file_ext = strrchr($fullpath, '.'); + $whitelist = array('.jpg', '.jpeg', '.gif', '.png'); + if (!(in_array($file_ext, $whitelist))) { + Tools::logm('processed image with not allowed extension. Skipping '.$fullpath); + + return false; + } + + // check headers + $imageinfo = getimagesize($absolute_path); + if ($imageinfo['mime'] != 'image/gif' && $imageinfo['mime'] != 'image/jpeg' && $imageinfo['mime'] != 'image/jpg' && $imageinfo['mime'] != 'image/png') { + Tools::logm('processed image with bad header. Skipping '.$fullpath); + + return false; + } + + // regenerate image + $im = imagecreatefromstring($rawdata); + if ($im === false) { + Tools::logm('error while regenerating image '.$fullpath); + + return false; + } + + switch ($imageinfo['mime']) { + case 'image/gif': + $result = imagegif($im, $fullpath); + break; + case 'image/jpeg': + case 'image/jpg': + $result = imagejpeg($im, $fullpath, REGENERATE_PICTURES_QUALITY); + break; + case 'image/png': + $result = imagepng($im, $fullpath, ceil(REGENERATE_PICTURES_QUALITY / 100 * 9)); + break; + } + imagedestroy($im); + + return $result; + } + + /** + * Create a directory for an article. + * + * @param $id ID of the article + * + * @return string + */ + private static function _createAssetsDirectory($id) + { + $assets_path = ABS_PATH; + if (!is_dir($assets_path)) { + mkdir($assets_path, 0715); + } + + $article_directory = $assets_path.$id; + if (!is_dir($article_directory)) { + mkdir($article_directory, 0715); + } + + return $article_directory; + } + + /** + * Remove the directory. + * + * @param $directory + * + * @return bool + */ + public static function removeDirectory($directory) + { + if (is_dir($directory)) { + $files = array_diff(scandir($directory), array('.', '..')); + foreach ($files as $file) { + (is_dir("$directory/$file")) ? self::removeDirectory("$directory/$file") : unlink("$directory/$file"); + } + + return rmdir($directory); + } + } }