Alexis Saettler
137 lines
4.2 KiB
PHP
137 lines
4.2 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use Illuminate\Support\Str;
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use Illuminate\Http\Request;
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use App\Models\Account\Photo;
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use App\Helpers\StorageHelper;
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use Illuminate\Support\Carbon;
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use App\Models\Contact\Contact;
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use App\Models\Contact\Document;
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use Illuminate\Support\Facades\Response;
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use League\Flysystem\FilesystemException;
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class StorageController extends Controller
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{
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public function __construct()
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{
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$this->middleware(['setEtag', 'ifMatch', 'ifNoneMatch']);
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}
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/**
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* Download file with authorization.
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*
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* @param Request $request
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* @param string $file
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* @return \Illuminate\Http\Response|\Symfony\Component\HttpFoundation\StreamedResponse|null
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*/
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public function show(Request $request, string $file)
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{
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$filename = $this->getFilename($request, $file);
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try {
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$disk = StorageHelper::disk(config('filesystems.default'));
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$lastModified = Carbon::createFromTimestamp($disk->lastModified($file), 'UTC')->locale('en');
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$headers = [
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'Last-Modified' => $lastModified->isoFormat('ddd\, DD MMM YYYY HH\:mm\:ss \G\M\T'),
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'Cache-Control' => config('filesystems.default_cache_control'),
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];
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if (! $this->checkConditions($request, $lastModified)) {
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return Response::noContent(304, $headers)->setNotModified();
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}
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return $disk->response($file, $filename, $headers);
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} catch (FilesystemException $e) {
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abort(404);
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}
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}
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/**
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* Get the filename for this file.
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*
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* @param Request $request
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* @param string $file
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* @return string
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*/
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private function getFilename(Request $request, string $file): string
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{
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$accountId = $request->user()->account_id;
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$folder = Str::before($file, '/');
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switch ($folder) {
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case 'avatars':
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$obj = Contact::where([
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'account_id' => $accountId,
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['avatar_default_url', 'like', "$file%"],
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])->first();
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$filename = Str::after($file, '/');
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break;
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case 'photos':
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$obj = Photo::where([
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'account_id' => $accountId,
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'new_filename' => $file,
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])->first();
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$filename = $obj ? $obj->original_filename : null;
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break;
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case 'documents':
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$obj = Document::where([
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'account_id' => $accountId,
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'new_filename' => $file,
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])->first();
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$filename = $obj ? $obj->original_filename : null;
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break;
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default:
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$obj = false;
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$filename = null;
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break;
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}
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if ($obj === false || $obj === null || ! $obj->exists) {
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abort(404);
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}
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return $filename;
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}
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/**
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* Check for If-Modified-Since and If-Unmodified-Since conditions.
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* Return true if the condition does not match.
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*
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* @param Request $request
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* @param Carbon $lastModified Last modified date
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* @return bool
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*/
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private function checkConditions(Request $request, Carbon $lastModified): bool
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{
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if (! $request->header('If-None-Match') && ($ifModifiedSince = $request->header('If-Modified-Since'))) {
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// The If-Modified-Since header contains a date. We will only
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// return the entity if it has been changed since that date.
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$date = Carbon::parse($ifModifiedSince);
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if ($lastModified->lessThanOrEqualTo($date)) {
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return false;
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}
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}
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if ($ifUnmodifiedSince = $request->header('If-Unmodified-Since')) {
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// The If-Unmodified-Since will allow the request if the
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// entity has not changed since the specified date.
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$date = Carbon::parse($ifUnmodifiedSince);
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// We must only check the date if it's valid
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if ($lastModified->greaterThan($date)) {
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abort(412, 'An If-Unmodified-Since header was specified, but the entity has been changed since the specified date.');
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}
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}
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return true;
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}
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}
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