<?php namespace BookStack\Services;
-
+use BookStack\Book;
+use BookStack\Chapter;
use BookStack\Page;
+use BookStack\Repos\EntityRepo;
class ExportService
{
+ protected $entityRepo;
+
+ /**
+ * ExportService constructor.
+ * @param $entityRepo
+ */
+ public function __construct(EntityRepo $entityRepo)
+ {
+ $this->entityRepo = $entityRepo;
+ }
/**
* Convert a page to a self-contained HTML file.
*/
public function pageToContainedHtml(Page $page)
{
- $cssContent = file_get_contents(public_path('/css/export-styles.css'));
- $pageHtml = view('pages/pdf', ['page' => $page, 'css' => $cssContent])->render();
+ $this->entityRepo->renderPage($page);
+ $pageHtml = view('pages/export', [
+ 'page' => $page
+ ])->render();
+ return $this->containHtml($pageHtml);
+ }
+
+ /**
+ * Convert a chapter to a self-contained HTML file.
+ * @param Chapter $chapter
+ * @return mixed|string
+ */
+ public function chapterToContainedHtml(Chapter $chapter)
+ {
+ $pages = $this->entityRepo->getChapterChildren($chapter);
+ $pages->each(function($page) {
+ $page->html = $this->entityRepo->renderPage($page);
+ });
+ $html = view('chapters/export', [
+ 'chapter' => $chapter,
+ 'pages' => $pages
+ ])->render();
+ return $this->containHtml($html);
+ }
+
+ /**
+ * Convert a book to a self-contained HTML file.
+ * @param Book $book
+ * @return mixed|string
+ */
+ public function bookToContainedHtml(Book $book)
+ {
+ $bookTree = $this->entityRepo->getBookChildren($book, true, true);
+ $html = view('books/export', [
+ 'book' => $book,
+ 'bookChildren' => $bookTree
+ ])->render();
+ return $this->containHtml($html);
+ }
+
+ /**
+ * Convert a page to a PDF file.
+ * @param Page $page
+ * @return mixed|string
+ */
+ public function pageToPdf(Page $page)
+ {
+ $this->entityRepo->renderPage($page);
+ $html = view('pages/pdf', [
+ 'page' => $page
+ ])->render();
+ return $this->htmlToPdf($html);
+ }
+
+ /**
+ * Convert a chapter to a PDF file.
+ * @param Chapter $chapter
+ * @return mixed|string
+ */
+ public function chapterToPdf(Chapter $chapter)
+ {
+ $pages = $this->entityRepo->getChapterChildren($chapter);
+ $pages->each(function($page) {
+ $page->html = $this->entityRepo->renderPage($page);
+ });
+ $html = view('chapters/export', [
+ 'chapter' => $chapter,
+ 'pages' => $pages
+ ])->render();
+ return $this->htmlToPdf($html);
+ }
+
+ /**
+ * Convert a book to a PDF file
+ * @param Book $book
+ * @return string
+ */
+ public function bookToPdf(Book $book)
+ {
+ $bookTree = $this->entityRepo->getBookChildren($book, true, true);
+ $html = view('books/export', [
+ 'book' => $book,
+ 'bookChildren' => $bookTree
+ ])->render();
+ return $this->htmlToPdf($html);
+ }
+
+ /**
+ * Convert normal webpage HTML to a PDF.
+ * @param $html
+ * @return string
+ */
+ protected function htmlToPdf($html)
+ {
+ $containedHtml = $this->containHtml($html);
+ $useWKHTML = config('snappy.pdf.binary') !== false;
+ if ($useWKHTML) {
+ $pdf = \SnappyPDF::loadHTML($containedHtml);
+ $pdf->setOption('print-media-type', true);
+ } else {
+ $pdf = \PDF::loadHTML($containedHtml);
+ }
+ return $pdf->output();
+ }
+ /**
+ * Bundle of the contents of a html file to be self-contained.
+ * @param $htmlContent
+ * @return mixed|string
+ */
+ protected function containHtml($htmlContent)
+ {
$imageTagsOutput = [];
- preg_match_all("/\<img.*src\=(\'|\")(.*?)(\'|\").*?\>/i", $pageHtml, $imageTagsOutput);
+ preg_match_all("/\<img.*src\=(\'|\")(.*?)(\'|\").*?\>/i", $htmlContent, $imageTagsOutput);
// Replace image src with base64 encoded image strings
if (isset($imageTagsOutput[0]) && count($imageTagsOutput[0]) > 0) {
foreach ($imageTagsOutput[0] as $index => $imgMatch) {
$oldImgString = $imgMatch;
$srcString = $imageTagsOutput[2][$index];
- if (strpos(trim($srcString), 'http') !== 0) {
- $pathString = public_path($srcString);
+ $isLocal = strpos(trim($srcString), 'http') !== 0;
+ if ($isLocal) {
+ $pathString = public_path(trim($srcString, '/'));
} else {
$pathString = $srcString;
}
- $imageContent = file_get_contents($pathString);
- $imageEncoded = 'data:image/' . pathinfo($pathString, PATHINFO_EXTENSION) . ';base64,' . base64_encode($imageContent);
- $newImageString = str_replace($srcString, $imageEncoded, $oldImgString);
- $pageHtml = str_replace($oldImgString, $newImageString, $pageHtml);
+ if ($isLocal && !file_exists($pathString)) continue;
+ try {
+ $imageContent = file_get_contents($pathString);
+ $imageEncoded = 'data:image/' . pathinfo($pathString, PATHINFO_EXTENSION) . ';base64,' . base64_encode($imageContent);
+ $newImageString = str_replace($srcString, $imageEncoded, $oldImgString);
+ } catch (\ErrorException $e) {
+ $newImageString = '';
+ }
+ $htmlContent = str_replace($oldImgString, $newImageString, $htmlContent);
}
}
$linksOutput = [];
- preg_match_all("/\<a.*href\=(\'|\")(.*?)(\'|\").*?\>/i", $pageHtml, $linksOutput);
+ preg_match_all("/\<a.*href\=(\'|\")(.*?)(\'|\").*?\>/i", $htmlContent, $linksOutput);
// Replace image src with base64 encoded image strings
if (isset($linksOutput[0]) && count($linksOutput[0]) > 0) {
if (strpos(trim($srcString), 'http') !== 0) {
$newSrcString = url($srcString);
$newLinkString = str_replace($srcString, $newSrcString, $oldLinkString);
- $pageHtml = str_replace($oldLinkString, $newLinkString, $pageHtml);
+ $htmlContent = str_replace($oldLinkString, $newLinkString, $htmlContent);
}
}
}
// Replace any relative links with system domain
- return $pageHtml;
+ return $htmlContent;
+ }
+
+ /**
+ * Converts the page contents into simple plain text.
+ * This method filters any bad looking content to provide a nice final output.
+ * @param Page $page
+ * @return mixed
+ */
+ public function pageToPlainText(Page $page)
+ {
+ $html = $this->entityRepo->renderPage($page);
+ $text = strip_tags($html);
+ // Replace multiple spaces with single spaces
+ $text = preg_replace('/\ {2,}/', ' ', $text);
+ // Reduce multiple horrid whitespace characters.
+ $text = preg_replace('/(\x0A|\xA0|\x0A|\r|\n){2,}/su', "\n\n", $text);
+ $text = html_entity_decode($text);
+ // Add title
+ $text = $page->name . "\n\n" . $text;
+ return $text;
+ }
+
+ /**
+ * Convert a chapter into a plain text string.
+ * @param Chapter $chapter
+ * @return string
+ */
+ public function chapterToPlainText(Chapter $chapter)
+ {
+ $text = $chapter->name . "\n\n";
+ $text .= $chapter->description . "\n\n";
+ foreach ($chapter->pages as $page) {
+ $text .= $this->pageToPlainText($page);
+ }
+ return $text;
+ }
+
+ /**
+ * Convert a book into a plain text string.
+ * @param Book $book
+ * @return string
+ */
+ public function bookToPlainText(Book $book)
+ {
+ $bookTree = $this->entityRepo->getBookChildren($book, true, true);
+ $text = $book->name . "\n\n";
+ foreach ($bookTree as $bookChild) {
+ if ($bookChild->isA('chapter')) {
+ $text .= $this->chapterToPlainText($bookChild);
+ } else {
+ $text .= $this->pageToPlainText($bookChild);
+ }
+ }
+ return $text;
}
-}
\ No newline at end of file
+}
+
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projects / bookstack / blobdiff