1 | <?php |
||
2 | |||
3 | namespace Yeelight\Http\Middleware; |
||
4 | |||
5 | use Closure; |
||
6 | use Illuminate\Http\Request; |
||
7 | use Illuminate\Support\Facades\Auth; |
||
8 | use Illuminate\Support\MessageBag; |
||
9 | use Symfony\Component\DomCrawler\Crawler; |
||
10 | use Symfony\Component\HttpFoundation\Response; |
||
11 | |||
12 | class Pjax |
||
13 | { |
||
14 | /** |
||
15 | * Handle an incoming request. |
||
16 | * |
||
17 | * @param Request $request |
||
18 | * @param Closure $next |
||
19 | * |
||
20 | * @return Response |
||
21 | */ |
||
22 | public function handle($request, Closure $next) |
||
23 | { |
||
24 | $response = $next($request); |
||
25 | |||
26 | if (!$request->pjax() || $response->isRedirection() || Auth::guard(config('yeelight.backend.route.prefix'))->guest()) { |
||
27 | return $response; |
||
28 | } |
||
29 | |||
30 | if (!$response->isSuccessful()) { |
||
31 | return $this->handleErrorResponse($response); |
||
32 | } |
||
33 | |||
34 | try { |
||
35 | $this->filterResponse($response, $request->header('X-PJAX-CONTAINER')) |
||
36 | ->setUriHeader($response, $request); |
||
37 | } catch (\Exception $exception) { |
||
0 ignored issues
–
show
Coding Style
Comprehensibility
introduced
by
Loading history...
|
|||
38 | } |
||
39 | |||
40 | return $response; |
||
41 | } |
||
42 | |||
43 | /** |
||
44 | * Send a response through this middleware. |
||
45 | * |
||
46 | * @param Response $response |
||
47 | */ |
||
48 | public static function respond(Response $response) |
||
49 | { |
||
50 | $next = function () use ($response) { |
||
51 | return $response; |
||
52 | }; |
||
53 | |||
54 | (new static())->handle(Request::capture(), $next)->send(); |
||
55 | |||
56 | exit; |
||
57 | } |
||
58 | |||
59 | /** |
||
60 | * Handle Response with exceptions. |
||
61 | * |
||
62 | * @param Response $response |
||
63 | * |
||
64 | * @return \Illuminate\Http\RedirectResponse |
||
65 | */ |
||
66 | protected function handleErrorResponse(Response $response) |
||
67 | { |
||
68 | $exception = $response->exception; |
||
69 | |||
70 | $error = new MessageBag([ |
||
71 | 'type' => get_class($exception), |
||
72 | 'message' => $exception->getMessage(), |
||
73 | 'file' => $exception->getFile(), |
||
74 | 'line' => $exception->getLine(), |
||
75 | ]); |
||
76 | |||
77 | return back()->withInput()->withErrors($error, 'exception'); |
||
78 | } |
||
79 | |||
80 | /** |
||
81 | * Prepare the PJAX-specific response content. |
||
82 | * |
||
83 | * @param Response $response |
||
84 | * @param string $container |
||
85 | * |
||
86 | * @return $this |
||
87 | */ |
||
88 | protected function filterResponse(Response $response, $container) |
||
89 | { |
||
90 | $crawler = new Crawler($response->getContent()); |
||
91 | |||
92 | $response->setContent( |
||
93 | $this->makeTitle($crawler). |
||
94 | $this->fetchContents($crawler, $container) |
||
95 | ); |
||
96 | |||
97 | return $this; |
||
98 | } |
||
99 | |||
100 | /** |
||
101 | * Prepare an HTML title tag. |
||
102 | * |
||
103 | * @param Crawler $crawler |
||
104 | * |
||
105 | * @return string |
||
106 | */ |
||
107 | protected function makeTitle($crawler) |
||
108 | { |
||
109 | $pageTitle = $crawler->filter('head > title')->html(); |
||
110 | |||
111 | return "<title>{$pageTitle}</title>"; |
||
112 | } |
||
113 | |||
114 | /** |
||
115 | * Fetch the PJAX-specific HTML from the response. |
||
116 | * |
||
117 | * @param Crawler $crawler |
||
118 | * @param string $container |
||
119 | * |
||
120 | * @return string |
||
121 | */ |
||
122 | protected function fetchContents($crawler, $container) |
||
123 | { |
||
124 | $content = $crawler->filter($container); |
||
125 | |||
126 | if (!$content->count()) { |
||
127 | abort(422); |
||
128 | } |
||
129 | |||
130 | return $this->decodeUtf8HtmlEntities($content->html()); |
||
131 | } |
||
132 | |||
133 | /** |
||
134 | * Decode utf-8 characters to html entities. |
||
135 | * |
||
136 | * @param string $html |
||
137 | * |
||
138 | * @return string |
||
139 | */ |
||
140 | protected function decodeUtf8HtmlEntities($html) |
||
141 | { |
||
142 | return preg_replace_callback('/(&#[0-9]+;)/', function ($html) { |
||
143 | return mb_convert_encoding($html[1], 'UTF-8', 'HTML-ENTITIES'); |
||
144 | }, $html); |
||
145 | } |
||
146 | |||
147 | /** |
||
148 | * Set the PJAX-URL header to the current uri. |
||
149 | * |
||
150 | * @param Response $response |
||
151 | * @param Request $request |
||
152 | */ |
||
153 | protected function setUriHeader(Response $response, Request $request) |
||
154 | { |
||
155 | $response->header( |
||
156 | 'X-PJAX-URL', |
||
157 | $request->getRequestUri() |
||
158 | ); |
||
159 | } |
||
160 | } |
||
161 |