Server::__construct() - Code Metrics - Inspection of "[since: v3.0.3] 28-Jan-2018 - Refactor code" - plinker-rpc/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 094c95...95e0be )

by Lawrence

created 2018-01-28 02:24 UTC

Server::__construct() A

↳ Parent: Server

Complexity

Conditions	3
Paths	2

Size

Total Lines	11
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	7
nc	2
nop	1
dl	0
loc	11
ccs	0
cts	9
cp	0
crap	12
rs	9.4285
c	1
b	0
f	0

<?php
/*
 +------------------------------------------------------------------------+
 | Plinker-RPC PHP                                                        |
 +------------------------------------------------------------------------+
 | Copyright (c)2017-2018 (https://github.com/plinker-rpc/core)           |
 +------------------------------------------------------------------------+
 | This source file is subject to MIT License                             |
 | that is bundled with this package in the file LICENSE.                 |
 |                                                                        |
 | If you did not receive a copy of the license and are unable to         |
 | obtain it through the world-wide-web, please send an email             |
 | to [email protected] so we can send you a copy immediately.        |
 +------------------------------------------------------------------------+
 | Authors: Lawrence Cherone <[email protected]>                     |
 +------------------------------------------------------------------------+
 */

namespace Plinker\Core;

/**
 * Plinker\Core\Server
 */
final class Server
{
    /**
     * @var
     */
    protected $input;

    /**
     * @var
     */
    protected $config;

    /**
     * @var
     */
    protected $signer;
    
    /**
     * @var
     */
    protected $response;
    

    /**
     * @const - error strings
     */
    const ERROR_IP            = "IP not in allowed list (%s)";
    const ERROR_TOKEN         = "Plinker token mismatch";
    const ERROR_DECODE        = "Failed to decode payload, check secret";
    const ERROR_USR_COMPONENT = "User component class (%s) not found";
    const ERROR_EXT_COMPONENT = "Component (%s) not implemented";
    const ERROR_ACTION        = "Component action (%s) not implemented in: %s";

    /**
     * Class construct
     *
     * @param  array $config - config array which holds object configuration
     * @return void
     */
    public function __construct($config = [])
    {
        $this->config = array_merge([
            "debug"       => false,
            "secret"      => null,
            "allowed_ips" => []
        ], $config);

        // check and set client timeout
        if (!isset($this->config["timeout"]) || !is_numeric($this->config["timeout"])) {
            $this->config["timeout"] = 10;
        }
    }
    
    /**
     * Sets inbound input value into scope
     * 
     * @return void
     */
    private function setInput()
    {
        $this->input = file_get_contents("php://input");
        $this->input = gzinflate($this->input);
        $this->input = json_decode($this->input, true);
    }
    
    /**
     * Check allowed IPs
     * 
     * @return bool
     */
    private function checkAllowedIp($ip, $allowed_ips = [])
    {
        return !(!empty($allowed_ips) && !in_array($ip, $allowed_ips));
    }
    
    /**
     * Execute core component
     */
    private function executeCoreComponent($component, $action)
    {
        // component is plinker endpoint
        $ns = "\\Plinker\\Core\\Endpoint\\".ucfirst($component);

        if (class_exists($ns)) {
            //
            $response = $this->execute($ns, $action);
        } else {
            if (empty($component) && $action === "info") {
                $response = $this->info();
            } else {
                $response = sprintf(Server::ERROR_EXT_COMPONENT, $component);
            }
        }
        
        return $response;
    }

    /**
     * Execute user component
     */
    private function executeUserComponent($component, $action)
    {
        //
        if (!empty($this->config["classes"][$component][0])) {
            $ns = $this->config["classes"][$component][0];
        }

        //
        if (!empty($this->config["classes"][$component][1])) {
            $this->config = array_merge(
                $this->config,
                $this->config["classes"][$component][1]
            );
        }

        //
        if (!empty($ns) && !file_exists($ns)) {
            $this->response = serialize([
                "error" => sprintf(Server::ERROR_USR_COMPONENT, $component),
                "code"  => 422
            ]);
            return;
        }

        //
        require($ns);


        //
        if (!class_exists($component)) {
            $this->response = serialize([
                "error" => sprintf(Server::ERROR_USR_COMPONENT, $component),
                "code"  => 422
            ]);
            return;
        }

        //
        return $this->execute($component, $action);
    }

    /**
     * Listen method
     *
     * <code>
     *  $server->listen();
     * </code>
     *
     * @return void
     */
    public function listen()
    {
        $this->setInput();

        // check allowed ips
        if (!$this->checkAllowedIp($_SERVER["REMOTE_ADDR"], $this->config["allowed_ips"])) {
            $this->response = serialize([
                "error" => sprintf(Server::ERROR_IP, $_SERVER["REMOTE_ADDR"]),
                "code" => 403
            ]);
            return;
        }

        // check header token matches data token
        if ($_SERVER["HTTP_PLINKER"] != $this->input["token"]) {
            $this->response = serialize([
                "error" => Server::ERROR_TOKEN,
                "code" => 422
            ]);
            return;
        }

        // load signer
        if (!$this->signer) {
            $this->signer = new Lib\Signer($this->config);
        }

        // decode input payload
        $this->input = $this->signer->decode($this->input);

        // could not decode payload
        if ($this->input === null) {
            $this->response = serialize([
                "error" => Server::ERROR_DECODE,
                "code" => 422
            ]);
            return;
        }

        // import user config
        $this->config = array_merge(
            $this->config,
            $this->input
        );

        // user component
        if (array_key_exists($this->input["component"], $this->config["classes"])) {
            //
            $response = $this->executeUserComponent($this->input["component"], $this->input["action"]);
        } 
        // core component
        else {
            $response = $this->executeCoreComponent($this->input["component"], $this->input["action"]);
        }

        $this->response = serialize($response);
    }

    /**
     * Return info about available classes
     *
     * <code>
     *  $client->info();
     * </code>
     *
     * @return array
     */
    private function info()
    {
        $response = [
            "class" => []
        ];
        foreach ($this->config["classes"] as $key => $val) {
            //
            require($val[0]);

            $reflection = new \ReflectionClass($key);

            foreach ($reflection->getMethods() as $method) {
                if (!in_array($method->getName(), ["__construct"])) {
                    $param = [];
                    foreach ($method->getParameters() as $parameter) {
                        $param[] = $parameter->getName();
                    }
                    $response["class"][$key]["methods"][$method->getName()] = $param;
                }
            }
        }

        return $response;
    }

    /**
     * Execute component
     *
     * @param  string $ns      component class namespace
     * @param  string $action  component action
     * @return string
     */
    private function execute($ns, $action)
    {
        $response  = null;
        $component = new $ns($this->config);

        if (method_exists($component, $action)) {
            $response = call_user_func_array(
                [
                    $component,
                    $action
                ],
                $this->input["params"]
            );
        } else {
            $response = sprintf(Server::ERROR_ACTION, $action, $ns);
        }

        return $response;
    }
    
    /**
     *
     */
    private function __destruct()
    {
        header("Content-Type: text/plain; charset=utf-8");
        echo $this->response;
    }
}


1			<?php
2			/*
3			+------------------------------------------------------------------------+
4			\| Plinker-RPC PHP \|
5			+------------------------------------------------------------------------+
6			\| Copyright (c)2017-2018 (https://github.com/plinker-rpc/core) \|
7			+------------------------------------------------------------------------+
8			\| This source file is subject to MIT License \|
9			\| that is bundled with this package in the file LICENSE. \|
10			\| \|
11			\| If you did not receive a copy of the license and are unable to \|
12			\| obtain it through the world-wide-web, please send an email \|
13			\| to [email protected] so we can send you a copy immediately. \|
14			+------------------------------------------------------------------------+
15			\| Authors: Lawrence Cherone <[email protected]> \|
16			+------------------------------------------------------------------------+
17			*/
18
19			namespace Plinker\Core;
20
21			/**
22			* Plinker\Core\Server
23			*/
24			final class Server
25			{
26			/**
27			* @var
28			*/
29			protected $input;
30
31			/**
32			* @var
33			*/
34			protected $config;
35
36			/**
37			* @var
38			*/
39			protected $signer;
40
41			/**
42			* @var
43			*/
44			protected $response;
45
46
47			/**
48			* @const - error strings
49			*/
50			const ERROR_IP = "IP not in allowed list (%s)";
51			const ERROR_TOKEN = "Plinker token mismatch";
52			const ERROR_DECODE = "Failed to decode payload, check secret";
53			const ERROR_USR_COMPONENT = "User component class (%s) not found";
54			const ERROR_EXT_COMPONENT = "Component (%s) not implemented";
55			const ERROR_ACTION = "Component action (%s) not implemented in: %s";
56
57			/**
58			* Class construct
59			*
60			* @param array $config - config array which holds object configuration
61			* @return void
62			*/
63			public function __construct($config = [])
64			{
65			$this->config = array_merge([
66			"debug" => false,
67			"secret" => null,
68			"allowed_ips" => []
69			], $config);
70
71			// check and set client timeout
72			if (!isset($this->config["timeout"]) \|\| !is_numeric($this->config["timeout"])) {
73			$this->config["timeout"] = 10;
74			}
75			}
76
77			/**
78			* Sets inbound input value into scope
79			*
80			* @return void
81			*/
82			private function setInput()
83			{
84			$this->input = file_get_contents("php://input");
85			$this->input = gzinflate($this->input);
86			$this->input = json_decode($this->input, true);
87			}
88
89			/**
90			* Check allowed IPs
91			*
92			* @return bool
93			*/
94			private function checkAllowedIp($ip, $allowed_ips = [])
95			{
96			return !(!empty($allowed_ips) && !in_array($ip, $allowed_ips));
97			}
98
99			/**
100			* Execute core component
101			*/
102			private function executeCoreComponent($component, $action)
103			{
104			// component is plinker endpoint
105			$ns = "\\Plinker\\Core\\Endpoint\\".ucfirst($component);
106
107			if (class_exists($ns)) {
108			//
109			$response = $this->execute($ns, $action);
110			} else {
111			if (empty($component) && $action === "info") {
112			$response = $this->info();
113			} else {
114			$response = sprintf(Server::ERROR_EXT_COMPONENT, $component);
115			}
116			}
117
118			return $response;
119			}
120
121			/**
122			* Execute user component
123			*/
124			private function executeUserComponent($component, $action)
125			{
126			//
127			if (!empty($this->config["classes"][$component][0])) {
128			$ns = $this->config["classes"][$component][0];
129			}
130
131			//
132			if (!empty($this->config["classes"][$component][1])) {
133			$this->config = array_merge(
134			$this->config,
135			$this->config["classes"][$component][1]
136			);
137			}
138
139			//
140			if (!empty($ns) && !file_exists($ns)) {
141			$this->response = serialize([
142			"error" => sprintf(Server::ERROR_USR_COMPONENT, $component),
143			"code" => 422
144			]);
145			return;
146			}
147
148			//
149			require($ns);
			0 ignored issues – show Comprehensibility Best Practice introduced 2018-01-28 02:25 UTC by Report Bug Copy Issue Report The variable `$ns` does not seem to be defined for all execution paths leading up to this point. Loading history...
150
151			//
152			if (!class_exists($component)) {
153			$this->response = serialize([
154			"error" => sprintf(Server::ERROR_USR_COMPONENT, $component),
155			"code" => 422
156			]);
157			return;
158			}
159
160			//
161			return $this->execute($component, $action);
162			}
163
164			/**
165			* Listen method
166			*
167			* <code>
168			* $server->listen();
169			* </code>
170			*
171			* @return void
172			*/
173			public function listen()
174			{
175			$this->setInput();
176
177			// check allowed ips
178			if (!$this->checkAllowedIp($_SERVER["REMOTE_ADDR"], $this->config["allowed_ips"])) {
179			$this->response = serialize([
180			"error" => sprintf(Server::ERROR_IP, $_SERVER["REMOTE_ADDR"]),
181			"code" => 403
182			]);
183			return;
184			}
185
186			// check header token matches data token
187			if ($_SERVER["HTTP_PLINKER"] != $this->input["token"]) {
188			$this->response = serialize([
189			"error" => Server::ERROR_TOKEN,
190			"code" => 422
191			]);
192			return;
193			}
194
195			// load signer
196			if (!$this->signer) {
197			$this->signer = new Lib\Signer($this->config);
198			}
199
200			// decode input payload
201			$this->input = $this->signer->decode($this->input);
202
203			// could not decode payload
204			if ($this->input === null) {
205			$this->response = serialize([
206			"error" => Server::ERROR_DECODE,
207			"code" => 422
208			]);
209			return;
210			}
211
212			// import user config
213			$this->config = array_merge(
214			$this->config,
215			$this->input
216			);
217
218			// user component
219			if (array_key_exists($this->input["component"], $this->config["classes"])) {
220			//
221			$response = $this->executeUserComponent($this->input["component"], $this->input["action"]);
222			}
223			// core component
224			else {
225			$response = $this->executeCoreComponent($this->input["component"], $this->input["action"]);
226			}
227
228			$this->response = serialize($response);
229			}
230
231			/**
232			* Return info about available classes
233			*
234			* <code>
235			* $client->info();
236			* </code>
237			*
238			* @return array
239			*/
240			private function info()
241			{
242			$response = [
243			"class" => []
244			];
245			foreach ($this->config["classes"] as $key => $val) {
246			//
247			require($val[0]);
248
249			$reflection = new \ReflectionClass($key);
250
251			foreach ($reflection->getMethods() as $method) {
252			if (!in_array($method->getName(), ["__construct"])) {
253			$param = [];
254			foreach ($method->getParameters() as $parameter) {
255			$param[] = $parameter->getName();
256			}
257			$response["class"][$key]["methods"][$method->getName()] = $param;
258			}
259			}
260			}
261
262			return $response;
263			}
264
265			/**
266			* Execute component
267			*
268			* @param string $ns component class namespace
269			* @param string $action component action
270			* @return string
271			*/
272			private function execute($ns, $action)
273			{
274			$response = null;
275			$component = new $ns($this->config);
276
277			if (method_exists($component, $action)) {
278			$response = call_user_func_array(
279			[
280			$component,
281			$action
282			],
283			$this->input["params"]
284			);
285			} else {
286			$response = sprintf(Server::ERROR_ACTION, $action, $ns);
287			}
288
289			return $response;
290			}
291
292			/**
293			*
294			*/
295			private function __destruct()
296			{
297			header("Content-Type: text/plain; charset=utf-8");
298			echo $this->response;
299			}
300			}
301

plinker-rpc / core

Push — master ( 094c95...95e0be )

Server::__construct() A

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