webapp/bookstack
1
0
Fork 0
mirror of https://github.com/BookStackApp/BookStack.git synced 2025-08-06 12:02:45 +03:00
Code Activity

Added plaintext & basic PDF page Export

Browse Source
This commit is contained in:
Dan Brown
2016-01-31 17:53:30 +00:00
parent ea2e16cabb
commit 080acf0a62
14 changed files with 602 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
app/Http/Controllers/PageController.php
View File

@@ -226,13 +226,22 @@ class PageController extends Controller
return redirect($page->getUrl());
}
/**
* Exports a page to pdf format using barryvdh/laravel-dompdf wrapper.
* https://github.com/barryvdh/laravel-dompdf
* @param $bookSlug
* @param $pageSlug
* @return \Illuminate\Http\Response
*/
public function exportPdf($bookSlug, $pageSlug)
{
$book = $this->bookRepo->getBySlug($bookSlug);
$page = $this->pageRepo->getBySlug($pageSlug, $book->id);
$cssContent = file_get_contents(public_path('/css/styles.css'));
return $pdf->download($pageSlug . '.pdf');
$pdfContent = $this->exportService->pageToPdf($page);
return response()->make($pdfContent, 200, [
'Content-Type' => 'application/octet-stream',
'Content-Disposition' => 'attachment; filename="'.$pageSlug.'.pdf'
]);
}
/**
@@ -251,4 +260,22 @@ class PageController extends Controller
'Content-Disposition' => 'attachment; filename="'.$pageSlug.'.html'
]);
}
/**
* Export a page to a simple plaintext .txt file.
* @param $bookSlug
* @param $pageSlug
* @return \Illuminate\Http\Response
*/
public function exportPlainText($bookSlug, $pageSlug)
{
$book = $this->bookRepo->getBySlug($bookSlug);
$page = $this->pageRepo->getBySlug($pageSlug, $book->id);
$containedHtml = $this->exportService->pageToPlainText($page);
return response()->make($containedHtml, 200, [
'Content-Type' => 'application/octet-stream',
'Content-Disposition' => 'attachment; filename="'.$pageSlug.'.txt'
]);
}
}

2
app/Http/routes.php
View File

@@ -24,6 +24,7 @@ Route::group(['middleware' => 'auth'], function () {
Route::get('/{bookSlug}/page/{pageSlug}', 'PageController@show');
Route::get('/{bookSlug}/page/{pageSlug}/export/pdf', 'PageController@exportPdf');
Route::get('/{bookSlug}/page/{pageSlug}/export/html', 'PageController@exportHtml');
Route::get('/{bookSlug}/page/{pageSlug}/export/plaintext', 'PageController@exportPlainText');
Route::get('/{bookSlug}/page/{pageSlug}/edit', 'PageController@edit');
Route::get('/{bookSlug}/page/{pageSlug}/delete', 'PageController@showDelete');
Route::put('/{bookSlug}/page/{pageSlug}', 'PageController@update');
@@ -46,7 +47,6 @@ Route::group(['middleware' => 'auth'], function () {
});
// Users
Route::get('/users', 'UserController@index');
Route::get('/users/create', 'UserController@create');

70
app/Services/ExportService.php
View File

@@ -6,7 +6,6 @@ use BookStack\Page;
class ExportService
{
/**
* Convert a page to a self-contained HTML file.
* Includes required CSS & image content. Images are base64 encoded into the HTML.
@@ -16,10 +15,33 @@ class ExportService
public function pageToContainedHtml(Page $page)
{
$cssContent = file_get_contents(public_path('/css/export-styles.css'));
$pageHtml = view('pages/pdf', ['page' => $page, 'css' => $cssContent])->render();
$pageHtml = view('pages/export', ['page' => $page, 'css' => $cssContent])->render();
return $this->containHtml($pageHtml);
}
/**
* Convert a page to a pdf file.
* @param Page $page
* @return mixed|string
*/
public function pageToPdf(Page $page)
{
$cssContent = file_get_contents(public_path('/css/export-styles.css'));
$pageHtml = view('pages/pdf', ['page' => $page, 'css' => $cssContent])->render();
$containedHtml = $this->containHtml($pageHtml);
$pdf = \PDF::loadHTML($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) {
@@ -34,12 +56,12 @@ class ExportService
$imageContent = file_get_contents($pathString);
$imageEncoded = 'data:image/' . pathinfo($pathString, PATHINFO_EXTENSION) . ';base64,' . base64_encode($imageContent);
$newImageString = str_replace($srcString, $imageEncoded, $oldImgString);
$pageHtml = str_replace($oldImgString, $newImageString, $pageHtml);
$htmlContent = str_replace($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($linksOutput[0]) > 0) {
@@ -49,13 +71,45 @@ class ExportService
if (strpos(trim($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)
{
$text = $page->text;
// 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;
}
}