diff --git a/app/Services/ExportService.php b/app/Services/ExportService.php index 01e87f167..0b2169985 100644 --- a/app/Services/ExportService.php +++ b/app/Services/ExportService.php @@ -8,6 +8,12 @@ use BookStack\Repos\EntityRepo; class ExportService { + const VIDEO_REGEX = "/\\<\/video>/"; + const YOUTUBE_REGEX = "/\<\/iframe>/"; + const VIMEO_REGEX = "/\<\/iframe>/"; + const GOOGLE_MAP_REGEX = "/\<\/iframe>/"; + const DAILYMOTION_REGEX = "/\<\/iframe>/"; + protected $entityRepo; protected $imageService; @@ -130,7 +136,7 @@ class ExportService */ protected function htmlToPdf($html) { - $containedHtml = $this->containHtml($html); + $containedHtml = $this->containHtml($html, true); $useWKHTML = config('snappy.pdf.binary') !== false; if ($useWKHTML) { $pdf = \SnappyPDF::loadHTML($containedHtml); @@ -147,7 +153,7 @@ class ExportService * @return mixed|string * @throws \Exception */ - protected function containHtml($htmlContent) + protected function containHtml($htmlContent, $isPDF = false) { $imageTagsOutput = []; preg_match_all("/\/i", $htmlContent, $imageTagsOutput); @@ -182,6 +188,23 @@ class ExportService } } + if ($isPDF) { + $callback = [$this, 'replaceContentPDF']; + // Replace video tag in PDF + $htmlContent = $this->replaceLinkedTags(self::VIDEO_REGEX, $htmlContent, $callback, 'Video'); + // Replace problems caused by TinyMCE removing the protocol for YouTube, Google Maps, DailyMotion and Vimeo + $htmlContent = $this->replaceLinkedTags(self::YOUTUBE_REGEX, $htmlContent, $callback, 'Video'); + $htmlContent = $this->replaceLinkedTags(self::GOOGLE_MAP_REGEX, $htmlContent, $callback, 'Video'); + $htmlContent = $this->replaceLinkedTags(self::DAILYMOTION_REGEX, $htmlContent, $callback, 'Video'); + $htmlContent = $this->replaceLinkedTags(self::VIMEO_REGEX, $htmlContent, $callback, 'Video'); + } else { + $callback = [$this, 'replaceContentHtml']; + $htmlContent = $this->replaceLinkedTags(self::YOUTUBE_REGEX, $htmlContent, $callback); + $htmlContent = $this->replaceLinkedTags(self::GOOGLE_MAP_REGEX, $htmlContent, $callback); + $htmlContent = $this->replaceLinkedTags(self::DAILYMOTION_REGEX, $htmlContent, $callback); + $htmlContent = $this->replaceLinkedTags(self::VIMEO_REGEX, $htmlContent, $callback); + } + // Replace any relative links with system domain return $htmlContent; } @@ -195,6 +218,16 @@ class ExportService public function pageToPlainText(Page $page) { $html = $this->entityRepo->renderPage($page); + + $callback = [$this, 'replaceContentText']; + // Replace video tag in PDF + $html = $this->replaceLinkedTags(self::VIDEO_REGEX, $html, $callback, 'Video'); + // Replace problems caused by TinyMCE removing the protocol for YouTube, Google Maps, DailyMotion and Vimeo + $html = $this->replaceLinkedTags(self::YOUTUBE_REGEX, $html, $callback, 'Video'); + $html = $this->replaceLinkedTags(self::GOOGLE_MAP_REGEX, $html, $callback, 'Video'); + $html = $this->replaceLinkedTags(self::DAILYMOTION_REGEX, $html, $callback, 'Video'); + $html = $this->replaceLinkedTags(self::VIMEO_REGEX, $html, $callback, 'Video'); + $text = strip_tags($html); // Replace multiple spaces with single spaces $text = preg_replace('/\ {2,}/', ' ', $text); @@ -239,4 +272,56 @@ class ExportService } return $text; } + + /** + * Can be used to replace certain tags that cause problems. + * See - https://github.com/tinymce/tinymce/blob/0f7a0f12667bde6eae9377b50b797f4479aa1ac7/src/plugins/media/main/ts/core/UrlPatterns.ts#L22 + * @param String $regex + * @param String $htmlContent + * @param Array $callback + * @param String $dynamicText + * @return String + */ + protected function replaceLinkedTags($regex, $htmlContent, $callback, $dynamicText = '') { + $iframeOutput = []; + preg_match_all($regex, $htmlContent, $iframeOutput); + if (isset($iframeOutput[0]) && count($iframeOutput[0]) > 0) { + foreach ($iframeOutput[0] as $index => $iframeMatch) { + $htmlContent = call_user_func($callback, $htmlContent, $iframeOutput, $index, $dynamicText); + } + } + return $htmlContent; + } + + protected function replaceContentHtml($htmlContent, $iframeOutput, $index) { + $srcString = $iframeOutput[2][$index]; + $newSrcString = $srcString; + if (strpos($srcString, 'http') !== 0) { + $newSrcString = 'https:' . $srcString; + } + $htmlContent = str_replace($srcString, $newSrcString, $htmlContent); + return $htmlContent; + } + + protected function replaceContentPDF($htmlContent, $iframeOutput, $index, $dynamicText) { + $srcString = $iframeOutput[2][$index]; + $newSrcString = $srcString; + if (strpos($srcString, 'http') !== 0) { + $newSrcString = 'https:' . $srcString; + } + $finalHtmlString = "$dynamicText: $newSrcString"; + $htmlContent = str_replace($iframeOutput[0][$index], $finalHtmlString, $htmlContent); + return $htmlContent; + } + + protected function replaceContentText($htmlContent, $iframeOutput, $index, $dynamicText) { + $srcString = $iframeOutput[2][$index]; + $newSrcString = $srcString; + if (strpos($srcString, 'http') !== 0) { + $newSrcString = 'https:' . $srcString; + } + $finalHtmlString = "$dynamicText: $newSrcString"; + $htmlContent = str_replace($iframeOutput[0][$index], $finalHtmlString, $htmlContent); + return $htmlContent; + } }