Dispatch::dispatch() - Code Metrics - Inspection of "code quality" - robsonvleite/router - Measure and Improve Code Quality continuously with Scrutinizer

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by Robson

created 2018-10-03 14:44 UTC

Dispatch::dispatch() A

↳ Parent: Dispatch

Complexity

Conditions	5
Paths	4

Size

Total Lines	15
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	8
nc	4
nop	0
dl	0
loc	15
rs	9.6111
c	0
b	0
f	0

<?php

namespace CoffeeCode\Router;

/**
 * Class CoffeeCode Dispatch
 *
 * @author Robson V. Leite <https://github.com/robsonvleite>
 * @package CoffeeCode\Router
 */
abstract class Dispatch
{
    /** @var bool|string */
    protected $projectUrl;

    /** @var string */
    protected $patch;

    /** @var string */
    protected $separator;

    /** @var string */
    protected $httpMethod;

    /** @var array */
    protected $routes;

    /** @var null|string */
    protected $group;

    /** @var null|array */
    protected $route;

    /** @var null|string */
    protected $namespace;

    /** @var null|array */
    protected $data;

    /** @var int */
    protected $error;

    /** @const int Bad Request */
    public const BAD_REQUEST = 400;

    /** @const int Not Found */
    public const NOT_FOUND = 404;

    /** @const int Method Not Allowed */
    public const METHOD_NOT_ALLOWED = 405;

    /** @const int Not Implemented */
    public const NOT_IMPLEMENTED = 501;

    /**
     * Dispatch constructor.
     *
     * @param string $projectUrl
     * @param null|string $separator
     */
    public function __construct(string $projectUrl, ?string $separator = ":")
    {
        $this->projectUrl = (substr($projectUrl, "-1") == "/" ? substr($projectUrl, 0, -1) : $projectUrl);
        $this->patch = (filter_input(INPUT_GET, "route", FILTER_SANITIZE_STRIPPED) ?? "/");
        $this->separator = ($separator ?? ":");
        $this->httpMethod = $_SERVER['REQUEST_METHOD'];
    }

    /**
     * @return array
     */
    public function __debugInfo()
    {
        return $this->routes;
    }

    /**
     * @param null|string $group
     * @return Dispatch
     */
    public function group(?string $group): Dispatch
    {
        $this->group = ($group ? str_replace("/", "", $group) : null);
        return $this;
    }

    /**
     * @param null|string $namespace
     * @return Dispatch
     */
    public function namespace(?string $namespace): Dispatch
    {
        $this->namespace = ($namespace ? ucwords($namespace) : null);
        return $this;
    }

    /**
     * @return null|array
     */
    public function data(): ?array
    {
        return $this->data;
    }

    /**
     * @return null|int
     */
    public function error(): ?int
    {
        return $this->error;
    }

    /**
     * @param string $route
     */
    public function redirect(string $route): void
    {
        header("Location: {$this->projectUrl}{$route}");
    }

    /**
     * @return bool
     */
    public function dispatch(): bool
    {
        if (empty($this->routes) || empty($this->routes[$this->httpMethod])) {
            $this->error = self::NOT_IMPLEMENTED;
            return false;
        }

        $this->route = null;
        foreach ($this->routes[$this->httpMethod] as $key => $route) {
            if (preg_match("~^" . $key . "$~", $this->patch, $found)) {
                $this->route = $route;
            }
        }

        return $this->route();
    }

    /**
     * @return bool
     */
    private function route()
    {
        if ($this->route) {
            if (is_callable($this->route['handler'])) {
                call_user_func($this->route['handler'], ($this->route['data'] ?? []));
                return true;
            }

            $controller = $this->route['handler'];
            $method = $this->route['action'];

            if (class_exists($controller)) {
                $newController = new $controller;
                if (method_exists($controller, $method)) {
                    $newController->$method(($this->route['data'] ?? []));
                    return true;
                }

                $this->error = self::METHOD_NOT_ALLOWED;
                return false;
            }

            $this->error = self::BAD_REQUEST;
            return false;
        }

        $this->error = self::NOT_FOUND;
        return false;
    }

    /**
     * @param string $method
     * @param string $route
     * @param string|callable $handler
     * @return Dispatch
     */
    protected function addRoute(string $method, string $route, $handler): Dispatch
    {
        preg_match_all("~\{\s* ([a-zA-Z_][a-zA-Z0-9_-]*) \}~x", $route, $keys, PREG_SET_ORDER);
        $routeDiff = array_values(array_diff(explode("/", $this->patch), explode("/", $route)));

        $this->formSpoofing();
        $offset = ($this->group ? 1 : 0);
        foreach ($keys as $key) {
            $this->data[$key[1]] = ($routeDiff[$offset++] ?? null);
        }

        $route = (!$this->group ?: "/{$this->group}{$route}");
        $data = $this->data;
        $namespace = $this->namespace;
        $router = function () use ($method, $handler, $data, $route, $namespace) {
            return [
                "route" => $route,
                "method" => $method,
                "handler" => $this->handler($handler, $namespace),
                "action" => $this->action($handler),
                "data" => $data
            ];
        };

        $route = preg_replace('~{([^}]*)}~', "([^/]+)", $route);
        $this->routes[$method][$route] = $router();
        return $this;
    }

    /**
     * httpMethod form spoofing
     */
    protected function formSpoofing(): void
    {
        $post = filter_input_array(INPUT_POST, FILTER_SANITIZE_SPECIAL_CHARS);

        if (!empty($post['_method']) && in_array($post['_method'], ["PUT", "PATCH", "DELETE"])) {
            $this->httpMethod = $post['_method'];
            $this->data = $post;

            unset($this->data["_method"]);
            return;
        }

        if ($this->httpMethod == "POST") {
            $this->data = filter_input_array(INPUT_POST, FILTER_SANITIZE_SPECIAL_CHARS);

            unset($this->data["_method"]);
            return;
        }

        if (in_array($this->httpMethod, ["PUT", "PATCH", "DELETE"]) && !empty($_SERVER['CONTENT_LENGTH'])) {
            parse_str(file_get_contents('php://input', false, null, 0, $_SERVER['CONTENT_LENGTH']), $putPatch);
            $this->data = $putPatch;

            unset($this->data["_method"]);
            return;
        }

        $this->data = [];
        return;
    }

    /**
     * @param $handler
     * @param $namespace
     * @return string
     */
    private function handler($handler, $namespace): string
    {
        return (!is_string($handler) ? $handler : "{$namespace}\\" . explode($this->separator, $handler)[0]);
    }

    /**
     * @param $handler
     * @return null|string
     */
    private function action($handler): ?string
    {
        return (!is_string($handler) ?: (explode($this->separator, $handler)[1] ?? null));
    }
}

1			<?php
2
3			namespace CoffeeCode\Router;
4
5			/**
6			* Class CoffeeCode Dispatch
7			*
8			* @author Robson V. Leite <https://github.com/robsonvleite>
9			* @package CoffeeCode\Router
10			*/
11			abstract class Dispatch
12			{
13			/** @var bool\|string */
14			protected $projectUrl;
15
16			/** @var string */
17			protected $patch;
18
19			/** @var string */
20			protected $separator;
21
22			/** @var string */
23			protected $httpMethod;
24
25			/** @var array */
26			protected $routes;
27
28			/** @var null\|string */
29			protected $group;
30
31			/** @var null\|array */
32			protected $route;
33
34			/** @var null\|string */
35			protected $namespace;
36
37			/** @var null\|array */
38			protected $data;
39
40			/** @var int */
41			protected $error;
42
43			/** @const int Bad Request */
44			public const BAD_REQUEST = 400;
45
46			/** @const int Not Found */
47			public const NOT_FOUND = 404;
48
49			/** @const int Method Not Allowed */
50			public const METHOD_NOT_ALLOWED = 405;
51
52			/** @const int Not Implemented */
53			public const NOT_IMPLEMENTED = 501;
54
55			/**
56			* Dispatch constructor.
57			*
58			* @param string $projectUrl
59			* @param null\|string $separator
60			*/
61			public function __construct(string $projectUrl, ?string $separator = ":")
62			{
63			$this->projectUrl = (substr($projectUrl, "-1") == "/" ? substr($projectUrl, 0, -1) : $projectUrl);
64			$this->patch = (filter_input(INPUT_GET, "route", FILTER_SANITIZE_STRIPPED) ?? "/");
65			$this->separator = ($separator ?? ":");
66			$this->httpMethod = $_SERVER['REQUEST_METHOD'];
67			}
68
69			/**
70			* @return array
71			*/
72			public function __debugInfo()
73			{
74			return $this->routes;
75			}
76
77			/**
78			* @param null\|string $group
79			* @return Dispatch
80			*/
81			public function group(?string $group): Dispatch
82			{
83			$this->group = ($group ? str_replace("/", "", $group) : null);
84			return $this;
85			}
86
87			/**
88			* @param null\|string $namespace
89			* @return Dispatch
90			*/
91			public function namespace(?string $namespace): Dispatch
92			{
93			$this->namespace = ($namespace ? ucwords($namespace) : null);
94			return $this;
95			}
96
97			/**
98			* @return null\|array
99			*/
100			public function data(): ?array
101			{
102			return $this->data;
103			}
104
105			/**
106			* @return null\|int
107			*/
108			public function error(): ?int
109			{
110			return $this->error;
111			}
112
113			/**
114			* @param string $route
115			*/
116			public function redirect(string $route): void
117			{
118			header("Location: {$this->projectUrl}{$route}");
119			}
120
121			/**
122			* @return bool
123			*/
124			public function dispatch(): bool
125			{
126			if (empty($this->routes) \|\| empty($this->routes[$this->httpMethod])) {
127			$this->error = self::NOT_IMPLEMENTED;
128			return false;
129			}
130
131			$this->route = null;
132			foreach ($this->routes[$this->httpMethod] as $key => $route) {
133			if (preg_match("~^" . $key . "$~", $this->patch, $found)) {
134			$this->route = $route;
135			}
136			}
137
138			return $this->route();
139			}
140
141			/**
142			* @return bool
143			*/
144			private function route()
145			{
146			if ($this->route) {
147			if (is_callable($this->route['handler'])) {
148			call_user_func($this->route['handler'], ($this->route['data'] ?? []));
149			return true;
150			}
151
152			$controller = $this->route['handler'];
153			$method = $this->route['action'];
154
155			if (class_exists($controller)) {
156			$newController = new $controller;
157			if (method_exists($controller, $method)) {
158			$newController->$method(($this->route['data'] ?? []));
159			return true;
160			}
161
162			$this->error = self::METHOD_NOT_ALLOWED;
163			return false;
164			}
165
166			$this->error = self::BAD_REQUEST;
167			return false;
168			}
169
170			$this->error = self::NOT_FOUND;
171			return false;
172			}
173
174			/**
175			* @param string $method
176			* @param string $route
177			* @param string\|callable $handler
178			* @return Dispatch
179			*/
180			protected function addRoute(string $method, string $route, $handler): Dispatch
181			{
182			preg_match_all("~\{\s* ([a-zA-Z_][a-zA-Z0-9_-]*) \}~x", $route, $keys, PREG_SET_ORDER);
183			$routeDiff = array_values(array_diff(explode("/", $this->patch), explode("/", $route)));
184
185			$this->formSpoofing();
186			$offset = ($this->group ? 1 : 0);
187			foreach ($keys as $key) {
188			$this->data[$key[1]] = ($routeDiff[$offset++] ?? null);
189			}
190
191			$route = (!$this->group ?: "/{$this->group}{$route}");
192			$data = $this->data;
193			$namespace = $this->namespace;
194			$router = function () use ($method, $handler, $data, $route, $namespace) {
195			return [
196			"route" => $route,
197			"method" => $method,
198			"handler" => $this->handler($handler, $namespace),
199			"action" => $this->action($handler),
200			"data" => $data
201			];
202			};
203
204			$route = preg_replace('~{([^}]*)}~', "([^/]+)", $route);
205			$this->routes[$method][$route] = $router();
206			return $this;
207			}
208
209			/**
210			* httpMethod form spoofing
211			*/
212			protected function formSpoofing(): void
213			{
214			$post = filter_input_array(INPUT_POST, FILTER_SANITIZE_SPECIAL_CHARS);
215
216			if (!empty($post['_method']) && in_array($post['_method'], ["PUT", "PATCH", "DELETE"])) {
217			$this->httpMethod = $post['_method'];
218			$this->data = $post;
219
220			unset($this->data["_method"]);
221			return;
222			}
223
224			if ($this->httpMethod == "POST") {
225			$this->data = filter_input_array(INPUT_POST, FILTER_SANITIZE_SPECIAL_CHARS);
226
227			unset($this->data["_method"]);
228			return;
229			}
230
231			if (in_array($this->httpMethod, ["PUT", "PATCH", "DELETE"]) && !empty($_SERVER['CONTENT_LENGTH'])) {
232			parse_str(file_get_contents('php://input', false, null, 0, $_SERVER['CONTENT_LENGTH']), $putPatch);
233			$this->data = $putPatch;
234
235			unset($this->data["_method"]);
236			return;
237			}
238
239			$this->data = [];
240			return;
241			}
242
243			/**
244			* @param $handler
245			* @param $namespace
246			* @return string
247			*/
248			private function handler($handler, $namespace): string
249			{
250			return (!is_string($handler) ? $handler : "{$namespace}\\" . explode($this->separator, $handler)[0]);
251			}
252
253			/**
254			* @param $handler
255			* @return null\|string
256			*/
257			private function action($handler): ?string
258			{
259			return (!is_string($handler) ?: (explode($this->separator, $handler)[1] ?? null));
260			}
261			}

robsonvleite / router

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Dispatch::dispatch() A

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