DebugBarMiddleware - Code Metrics - Inspection of "API SilverStripe 4 compatibility" - lekoala/silverstripe-debugbar - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#47)

by Robbie

created 2017-07-10 08:18 UTC

DebugBarMiddleware A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	91
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	5

Importance

Changes

Metric	Value
wmc	17
lcom	0
cbo	5
dl	0
loc	91
rs	10
c	0
b	0
f	0

3 Methods

Rating	Name	Size	Complexity
A	process()	7	1
A	beforeRequest()	21	3
C	afterRequest()	47	13

<?php

namespace LeKoala\DebugBar\Middleware;

use LeKoala\DebugBar\DebugBar;
use SilverStripe\Control\Middleware\HTTPMiddleware;
use SilverStripe\Control\Director;
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\HTTPResponse;

class DebugBarMiddleware implements HTTPMiddleware
{
    public function process(HTTPRequest $request, callable $delegate)
    {
        $this->beforeRequest($request);
        $response = $delegate($request);
        $this->afterRequest($request, $response);
        return $response;
    }

    /**
     * Track the start up of the framework boot
     *
     * @param HTTPRequest $request
     */
    protected function beforeRequest(HTTPRequest $request)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        DebugBar::withDebugBar(function (\DebugBar\DebugBar $debugbar) {
            /** @var DebugBar\DataCollector\TimeDataCollector $timeData */
            $timeData = $debugbar->getCollector('time');

            if (!$timeData) {
                return;
            }

            if (isset($_SERVER['REQUEST_TIME_FLOAT'])) {
                $timeData = $debugbar['time'];
                $timeData->addMeasure(
                    'framework boot',
                    $_SERVER['REQUEST_TIME_FLOAT'],
                    microtime(true)
                );
            }
            $timeData->startMeasure('pre_request', 'pre request');
        });
    }

    /**
     * Inject DebugBar requirements for the frontend
     *
     * @param HTTPRequest  $request
     * @param HTTPResponse $response
     */
    protected function afterRequest(HTTPRequest $request, HTTPResponse $response)
    {
        $debugbar = DebugBar::getDebugBar();
        if (!$debugbar) {
            return;
        }
        DebugBar::setRequest($request);

        // All queries have been displayed
        if (DebugBar::getShowQueries()) {
            exit();

        }

        $script = DebugBar::renderDebugBar();

        // If the bar is not renderable, return early
        if (!$script) {
            return;
        }

        // Inject init script into the HTML response
        $body = $response->getBody();
        if (strpos($body, '</body>') !== false) {
            $body = str_replace('</body>', $script . '</body>', $body);
            $response->setBody($body);
        }

        // Ajax support
        if (Director::is_ajax() && !headers_sent()) {
            if (DebugBar::isAdminUrl() && !DebugBar::config()->enabled_in_admin) {
                return;
            }
            // Skip anything that is not a GET request
            if (!$request->isGET()) {
                return;
            }
            // Always enable in admin because everything is mostly loaded through ajax
            if (DebugBar::config()->ajax || DebugBar::isAdminUrl()) {
                $headers = $debugbar->getDataAsHeaders();

                // Prevent throwing js errors in case header size is too large
                if (is_array($headers)) {
                    $debugbar->sendDataInHeaders();
                }
            }
        }
    }
}


1			<?php
2
3			namespace LeKoala\DebugBar\Middleware;
4
5			use LeKoala\DebugBar\DebugBar;
6			use SilverStripe\Control\Middleware\HTTPMiddleware;
7			use SilverStripe\Control\Director;
8			use SilverStripe\Control\HTTPRequest;
9			use SilverStripe\Control\HTTPResponse;
10
11			class DebugBarMiddleware implements HTTPMiddleware
12			{
13			public function process(HTTPRequest $request, callable $delegate)
14			{
15			$this->beforeRequest($request);
16			$response = $delegate($request);
17			$this->afterRequest($request, $response);
18			return $response;
19			}
20
21			/**
22			* Track the start up of the framework boot
23			*
24			* @param HTTPRequest $request
25			*/
26			protected function beforeRequest(HTTPRequest $request)
			0 ignored issues – show Unused Code introduced 2017-07-10 04:48 UTC by Report Bug Copy Issue Report The parameter `$request` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history... Coding Style introduced 2017-07-10 04:48 UTC by Report Bug Copy Issue Report `beforeRequest` uses the super-global variable `$_SERVER` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
27			{
28			DebugBar::withDebugBar(function (\DebugBar\DebugBar $debugbar) {
29			/** @var DebugBar\DataCollector\TimeDataCollector $timeData */
30			$timeData = $debugbar->getCollector('time');
31
32			if (!$timeData) {
33			return;
34			}
35
36			if (isset($_SERVER['REQUEST_TIME_FLOAT'])) {
37			$timeData = $debugbar['time'];
38			$timeData->addMeasure(
39			'framework boot',
40			$_SERVER['REQUEST_TIME_FLOAT'],
41			microtime(true)
42			);
43			}
44			$timeData->startMeasure('pre_request', 'pre request');
45			});
46			}
47
48			/**
49			* Inject DebugBar requirements for the frontend
50			*
51			* @param HTTPRequest $request
52			* @param HTTPResponse $response
53			*/
54			protected function afterRequest(HTTPRequest $request, HTTPResponse $response)
55			{
56			$debugbar = DebugBar::getDebugBar();
57			if (!$debugbar) {
58			return;
59			}
60			DebugBar::setRequest($request);
61
62			// All queries have been displayed
63			if (DebugBar::getShowQueries()) {
64			exit();
			0 ignored issues – show Coding Style Compatibility introduced 2017-07-10 04:48 UTC by Report Bug Copy Issue Report The method `afterRequest()` contains an exit expression. An exit expression should only be used in rare cases. For example, if you write a short command line script. In most cases however, using an `exit` expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage. Loading history...
65			}
66
67			$script = DebugBar::renderDebugBar();
68
69			// If the bar is not renderable, return early
70			if (!$script) {
71			return;
72			}
73
74			// Inject init script into the HTML response
75			$body = $response->getBody();
76			if (strpos($body, '</body>') !== false) {
77			$body = str_replace('</body>', $script . '</body>', $body);
78			$response->setBody($body);
79			}
80
81			// Ajax support
82			if (Director::is_ajax() && !headers_sent()) {
83			if (DebugBar::isAdminUrl() && !DebugBar::config()->enabled_in_admin) {
84			return;
85			}
86			// Skip anything that is not a GET request
87			if (!$request->isGET()) {
88			return;
89			}
90			// Always enable in admin because everything is mostly loaded through ajax
91			if (DebugBar::config()->ajax \|\| DebugBar::isAdminUrl()) {
92			$headers = $debugbar->getDataAsHeaders();
93
94			// Prevent throwing js errors in case header size is too large
95			if (is_array($headers)) {
96			$debugbar->sendDataInHeaders();
97			}
98			}
99			}
100			}
101			}
102

lekoala / silverstripe-debugbar

Pull Request — master (#47)

DebugBarMiddleware A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

3 Methods

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