Render::__invoke() - Code Metrics - Inspection of "attribute name test" - juliangut/janitor - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — middleware (801be0)

by Julián

created 2016-01-30 22:26 UTC

Render::__invoke() B

↳ Parent: Render

Complexity

Conditions	6
Paths	10

Size

Total Lines	31
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	0
loc	31
rs	8.439
cc	6
eloc	24
nc	10
nop	3

<?php
/**
 * Effortless maintenance management (http://juliangut.com/janitor)
 *
 * @link https://github.com/juliangut/janitor for the canonical source repository
 *
 * @license https://github.com/juliangut/janitor/blob/master/LICENSE
 */

namespace Janitor\Handler;

use Janitor\Handler as HandlerInterface;
use Janitor\Watcher;
use Janitor\ScheduledWatcher;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
use Zend\Diactoros\Stream;

/**
 * Render HTML page maintenance handler.
 */
class Render implements HandlerInterface
{
    /**
     * Known handled content types.
     *
     * @var array
     */
    protected $knownContentTypes = [
        'application/json',
        'application/xml',
        'text/xml',
        'text/html',
    ];

    /**
     * {@inheritdoc}
     */
    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Watcher $watcher)
    {
        $contentType = $this->determineContentType($request);
        switch ($contentType) {
            case 'application/json':
                $content = $this->renderJson($watcher);
                break;
            case 'text/xml':
            case 'application/xml':
                $content = $this->renderXml($watcher);
                break;
            case 'text/html':
                $content = $this->renderHtml($watcher);
                break;
        }

        $body = new Stream('php://temp', 'r+');
        $body->write($content);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

        if ($watcher instanceof ScheduledWatcher) {
            $response = $response->withHeader('Expires', $watcher->getEnd()->format('D, d M Y H:i:s e'));
        } else {
            $response = $response->withHeader('Cache-Control', 'max-age=0')
                ->withHeader('Cache-Control', 'no-cache, must-revalidate')
                ->withHeader('Pragma', 'no-cache');
        }

        return $response->withStatus(503)
            ->withHeader('Content-Type', $contentType)
            ->withBody($body);
    }

    /**
     * Render HTML maintenance message.
     *
     * @param \Janitor\Watcher $watcher
     *
     * @return string
     */
    protected function renderHtml(Watcher $watcher)
    {
        $title = 'Maintenance';
        $message = $this->getMaintenanceMessage($watcher);

        return sprintf(
            "<html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8'>" .
            "<title>%s</title><style>body{margin:0;padding:30px;font:12px/1.5 Helvetica,Arial,Verdana," .
            "sans-serif;}h1{margin:0;font-size:48px;font-weight:normal;line-height:48px;}strong{" .
            "display:inline-block;width:65px;}</style></head><body><h1>%s</h1>%s</body></html>",
            $title,
            $title,
            $message
        );
    }

    /**
     * Render JSON maintenance message.
     *
     * @param \Janitor\Watcher $watcher
     *
     * @return string
     */
    protected function renderJson(Watcher $watcher)
    {
        return json_encode(['message' => $this->getMaintenanceMessage($watcher)], JSON_PRETTY_PRINT);
    }

    /**
     * Render XML maintenance message.
     *
     * @param \Janitor\Watcher $watcher
     *
     * @return string
     */
    protected function renderXml(Watcher $watcher)
    {
        return sprintf(
            "<maintenance>\n  <message>%s</message>\n</maintenance>",
            $this->getMaintenanceMessage($watcher)
        );
    }

    /**
     * Retrieve custom maintenance message.
     *
     * @param \Janitor\Watcher $watcher
     *
     * @return string
     */
    protected function getMaintenanceMessage(Watcher $watcher)
    {
        $message = 'Maintenance mode is not active!';
        if ($watcher->isActive()) {
            $message = $watcher instanceof ScheduledWatcher
                ? 'Undergoing maintenance tasks until ' . $watcher->getEnd()->format('Y/m/d H:i:s')
                : 'Undergoing maintenance tasks';
        }

        return $message;
    }

    /**
     * Determine content type using Accept header.
     *
     * @param \Psr\Http\Message\ServerRequestInterface $request
     *
     * @return string
     */
    private function determineContentType(ServerRequestInterface $request)
    {
        $acceptHeader = $request->getHeaderLine('Accept');
        $selectedContentTypes = array_intersect(explode(',', $acceptHeader), $this->knownContentTypes);
        if (count($selectedContentTypes)) {
            return $selectedContentTypes[0];
        }
        return 'text/html';
    }
}


1			<?php
2			/**
3			* Effortless maintenance management (http://juliangut.com/janitor)
4			*
5			* @link https://github.com/juliangut/janitor for the canonical source repository
6			*
7			* @license https://github.com/juliangut/janitor/blob/master/LICENSE
8			*/
9
10			namespace Janitor\Handler;
11
12			use Janitor\Handler as HandlerInterface;
13			use Janitor\Watcher;
14			use Janitor\ScheduledWatcher;
15			use Psr\Http\Message\ServerRequestInterface;
16			use Psr\Http\Message\ResponseInterface;
17			use Zend\Diactoros\Stream;
18
19			/**
20			* Render HTML page maintenance handler.
21			*/
22			class Render implements HandlerInterface
23			{
24			/**
25			* Known handled content types.
26			*
27			* @var array
28			*/
29			protected $knownContentTypes = [
30			'application/json',
31			'application/xml',
32			'text/xml',
33			'text/html',
34			];
35
36			/**
37			* {@inheritdoc}
38			*/
39			public function __invoke(ServerRequestInterface $request, ResponseInterface $response, Watcher $watcher)
40			{
41			$contentType = $this->determineContentType($request);
42			switch ($contentType) {
43			case 'application/json':
44			$content = $this->renderJson($watcher);
45			break;
46			case 'text/xml':
47			case 'application/xml':
48			$content = $this->renderXml($watcher);
49			break;
50			case 'text/html':
51			$content = $this->renderHtml($watcher);
52			break;
53			}
54
55			$body = new Stream('php://temp', 'r+');
56			$body->write($content);
			0 ignored issues – show Bug introduced 2016-01-30 22:29 UTC by Report Bug Copy Issue Report The variable `$content` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
57
58			if ($watcher instanceof ScheduledWatcher) {
59			$response = $response->withHeader('Expires', $watcher->getEnd()->format('D, d M Y H:i:s e'));
60			} else {
61			$response = $response->withHeader('Cache-Control', 'max-age=0')
62			->withHeader('Cache-Control', 'no-cache, must-revalidate')
63			->withHeader('Pragma', 'no-cache');
64			}
65
66			return $response->withStatus(503)
67			->withHeader('Content-Type', $contentType)
68			->withBody($body);
69			}
70
71			/**
72			* Render HTML maintenance message.
73			*
74			* @param \Janitor\Watcher $watcher
75			*
76			* @return string
77			*/
78			protected function renderHtml(Watcher $watcher)
79			{
80			$title = 'Maintenance';
81			$message = $this->getMaintenanceMessage($watcher);
82
83			return sprintf(
84			"<html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8'>" .
85			"<title>%s</title><style>body{margin:0;padding:30px;font:12px/1.5 Helvetica,Arial,Verdana," .
86			"sans-serif;}h1{margin:0;font-size:48px;font-weight:normal;line-height:48px;}strong{" .
87			"display:inline-block;width:65px;}</style></head><body><h1>%s</h1>%s</body></html>",
88			$title,
89			$title,
90			$message
91			);
92			}
93
94			/**
95			* Render JSON maintenance message.
96			*
97			* @param \Janitor\Watcher $watcher
98			*
99			* @return string
100			*/
101			protected function renderJson(Watcher $watcher)
102			{
103			return json_encode(['message' => $this->getMaintenanceMessage($watcher)], JSON_PRETTY_PRINT);
104			}
105
106			/**
107			* Render XML maintenance message.
108			*
109			* @param \Janitor\Watcher $watcher
110			*
111			* @return string
112			*/
113			protected function renderXml(Watcher $watcher)
114			{
115			return sprintf(
116			"<maintenance>\n <message>%s</message>\n</maintenance>",
117			$this->getMaintenanceMessage($watcher)
118			);
119			}
120
121			/**
122			* Retrieve custom maintenance message.
123			*
124			* @param \Janitor\Watcher $watcher
125			*
126			* @return string
127			*/
128			protected function getMaintenanceMessage(Watcher $watcher)
129			{
130			$message = 'Maintenance mode is not active!';
131			if ($watcher->isActive()) {
132			$message = $watcher instanceof ScheduledWatcher
133			? 'Undergoing maintenance tasks until ' . $watcher->getEnd()->format('Y/m/d H:i:s')
134			: 'Undergoing maintenance tasks';
135			}
136
137			return $message;
138			}
139
140			/**
141			* Determine content type using Accept header.
142			*
143			* @param \Psr\Http\Message\ServerRequestInterface $request
144			*
145			* @return string
146			*/
147			private function determineContentType(ServerRequestInterface $request)
148			{
149			$acceptHeader = $request->getHeaderLine('Accept');
150			$selectedContentTypes = array_intersect(explode(',', $acceptHeader), $this->knownContentTypes);
151			if (count($selectedContentTypes)) {
152			return $selectedContentTypes[0];
153			}
154			return 'text/html';
155			}
156			}
157

juliangut / janitor

Branch — middleware (801be0)

Render::__invoke() B

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