BookStack/app/Http/Controllers/ImageController.php
2015-07-13 21:52:56 +01:00

90 lines
2.7 KiB
PHP

<?php
namespace Oxbow\Http\Controllers;
use Illuminate\Filesystem\Filesystem as File;
use Illuminate\Http\Request;
use Oxbow\Http\Requests;
use Oxbow\Image;
class ImageController extends Controller
{
protected $image;
protected $file;
/**
* ImageController constructor.
* @param Image $image
* @param File $file
*/
public function __construct(Image $image, File $file)
{
$this->image = $image;
$this->file = $file;
}
/**
* Returns an image from behind the public-facing application.
* @param Request $request
* @return \Illuminate\Http\Response
*/
public function getImage(Request $request)
{
$cacheTime = 60*60*24;
$path = storage_path() . '/' . $request->path();
$modifiedTime = $this->file->lastModified($path);
$eTag = md5($modifiedTime . $path);
$headerLastModified = gmdate('r', $modifiedTime);
$headerExpires = gmdate('r', $modifiedTime + $cacheTime);
$headers = [
'Last-Modified' => $headerLastModified,
'Cache-Control' => 'must-revalidate',
'Pragma' => 'public',
'Expires' => $headerExpires,
'Etag' => $eTag
];
$browserModifiedSince = $request->header('If-Modified-Since');
$browserNoneMatch = $request->header('If-None-Match');
if($browserModifiedSince !== null && file_exists($path) && ($browserModifiedSince == $headerLastModified || $browserNoneMatch == $eTag)) {
return response()->make('', 304, $headers);
}
if(file_exists($path)) {
return response()->make(file_get_contents($path), 200, array_merge($headers, [
'Content-Type' => $this->file->mimeType($path),
'Content-Length' => filesize($path),
]));
}
abort(404);
}
/**
* Handles image uploads for use on pages.
* @param Request $request
* @return \Illuminate\Http\JsonResponse
*/
public function upload(Request $request)
{
$imageUpload = $request->file('file');
$name = $imageUpload->getClientOriginalName();
$imagePath = '/images/' . Date('Y-m-M') . '/';
$storagePath = storage_path(). $imagePath;
$fullPath = $storagePath . $name;
while(file_exists($fullPath)) {
$name = substr(sha1(rand()), 0, 3) . $name;
$fullPath = $storagePath . $name;
}
$imageUpload->move($storagePath, $name);
// Create and save image object
$this->image->name = $name;
$this->image->url = $imagePath . $name;
$this->image->save();
return response()->json(['link' => $this->image->url]);
}
}