Samp::processResponse() - Code Metrics - Inspection of "Update scrutinizer. Hopefully doesn't break things..." - Austinb/GameQ - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — v3 ( 962004...bdfc5f )

by Austin

created 2019-12-08 03:42 UTC

Samp::processResponse() A

↳ Parent: Samp

Complexity

Conditions	5
Paths	5

Size

Total Lines	42
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	5

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	16
c	1
b	0
f	0
dl	0
loc	42
ccs	17
cts	17
cp	1
rs	9.4222
cc	5
nc	5
nop	0
crap	5

<?php
/**
 * This file is part of GameQ.
 *
 * GameQ is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * GameQ is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace GameQ\Protocols;

use GameQ\Protocol;
use GameQ\Buffer;
use GameQ\Result;
use GameQ\Server;
use GameQ\Exception\Protocol as Exception;

/**
 * San Andreas Multiplayer Protocol Class (samp)
 *
 * Note:
 * Player information will not be returned if player count is over 256
 *
 * @author Austin Bischoff <[email protected]>
 */
class Samp extends Protocol
{

    /**
     * Array of packets we want to look up.
     * Each key should correspond to a defined method in this or a parent class
     *
     * @type array
     */
    protected $packets = [
        self::PACKET_STATUS  => "SAMP%si",
        self::PACKET_PLAYERS => "SAMP%sd",
        self::PACKET_RULES   => "SAMP%sr",
    ];

    /**
     * Use the response flag to figure out what method to run
     *
     * @type array
     */
    protected $responses = [
        "\x69" => "processStatus", // i
        "\x64" => "processPlayers", // d
        "\x72" => "processRules", // r
    ];

    /**
     * The query protocol used to make the call
     *
     * @type string
     */
    protected $protocol = 'samp';

    /**
     * String name of this protocol class
     *
     * @type string
     */
    protected $name = 'samp';

    /**
     * Longer string name of this protocol class
     *
     * @type string
     */
    protected $name_long = "San Andreas Multiplayer";

    /**
     * Holds the calculated server code that is passed when querying for information
     *
     * @type string
     */
    protected $server_code = null;

    /**
     * The client join link
     *
     * @type string
     */
    protected $join_link = "samp://%s:%d/";

    /**
     * Normalize settings for this protocol
     *
     * @type array
     */
    protected $normalize = [
        // General
        'general' => [
            // target       => source
            'dedicated'  => 'dedicated',
            'hostname'   => ['hostname', 'servername'],
            'mapname'    => 'mapname',
            'maxplayers' => 'max_players',
            'numplayers' => 'num_players',
            'password'   => 'password',
        ],
        // Individual
        'player'  => [
            'name'  => 'name',
            'score' => 'score',
            'ping'  => 'ping',
        ],
    ];

    /**
     * Handle some work before sending the packets out to the server
     *
     * @param \GameQ\Server $server
     */
    public function beforeSend(Server $server)
    {

        // Build the server code
        $this->server_code = implode('', array_map('chr', explode('.', $server->ip()))) .
            pack("S", $server->portClient());

        // Loop over the packets and update them
        foreach ($this->packets as $packetType => $packet) {
            // Fill out the packet with the server info
            $this->packets[$packetType] = sprintf($packet, $this->server_code);
        }
    }

    /**
     * Process the response
     *
     * @return array
     * @throws \GameQ\Exception\Protocol
     */
    public function processResponse()
    {

        // Results that will be returned
        $results = [];

        // Get the length of the server code so we can figure out how much to read later
        $serverCodeLength = strlen($this->server_code);

        // We need to pre-sort these for split packets so we can do extra work where needed
        foreach ($this->packets_response as $response) {
            // Make new buffer
            $buffer = new Buffer($response);

            // Check the header, should be SAMP
            if (($header = $buffer->read(4)) !== 'SAMP') {
                throw new Exception(__METHOD__ . " header response '{$header}' is not valid");
            }

            // Check to make sure the server response code matches what we sent
            if ($buffer->read($serverCodeLength) !== $this->server_code) {
                throw new Exception(__METHOD__ . " code check failed.");
            }

            // Figure out what packet response this is for
            $response_type = $buffer->read(1);

            // Figure out which packet response this is
            if (!array_key_exists($response_type, $this->responses)) {
                throw new Exception(__METHOD__ . " response type '{$response_type}' is not valid");
            }

            // Now we need to call the proper method
            $results = array_merge(
                $results,
                call_user_func_array([$this, $this->responses[$response_type]], [$buffer])
            );

            unset($buffer);
        }

        return $results;
    }

    /*
     * Internal methods
     */

    /**
     * Handles processing the server status data
     *
     * @param \GameQ\Buffer $buffer
     *
     * @return array
     * @throws \GameQ\Exception\Protocol
     */
    protected function processStatus(Buffer $buffer)
    {

        // Set the result to a new result instance
        $result = new Result();

        // Always dedicated
        $result->add('dedicated', 1);

        // Pull out the server information
        $result->add('password', $buffer->readInt8());
        $result->add('num_players', $buffer->readInt16());
        $result->add('max_players', $buffer->readInt16());

        // These are read differently for these last 3
        $result->add('servername', utf8_encode($buffer->read($buffer->readInt32())));
        $result->add('gametype', $buffer->read($buffer->readInt32()));
        $result->add('language', $buffer->read($buffer->readInt32()));

        unset($buffer);

        return $result->fetch();
    }

    /**
     * Handles processing the player data into a usable format
     *
     * @param \GameQ\Buffer $buffer
     *
     * @return array
     */
    protected function processPlayers(Buffer $buffer)
    {

        // Set the result to a new result instance
        $result = new Result();

        // Number of players
        $result->add('num_players', $buffer->readInt16());

        // Run until we run out of buffer
        while ($buffer->getLength()) {
            $result->addPlayer('id', $buffer->readInt8());
            $result->addPlayer('name', utf8_encode($buffer->readPascalString()));
            $result->addPlayer('score', $buffer->readInt32());
            $result->addPlayer('ping', $buffer->readInt32());
        }

        unset($buffer);

        return $result->fetch();
    }

    /**
     * Handles processing the rules data into a usable format
     *
     * @param \GameQ\Buffer $buffer
     *
     * @return array
     */
    protected function processRules(Buffer $buffer)
    {

        // Set the result to a new result instance
        $result = new Result();

        // Number of rules
        $result->add('num_rules', $buffer->readInt16());

        // Run until we run out of buffer
        while ($buffer->getLength()) {
            $result->add($buffer->readPascalString(), $buffer->readPascalString());
        }

        unset($buffer);

        return $result->fetch();
    }
}


1		<?php
2		/**
3		* This file is part of GameQ.
4		*
5		* GameQ is free software; you can redistribute it and/or modify
6		* it under the terms of the GNU Lesser General Public License as published by
7		* the Free Software Foundation; either version 3 of the License, or
8		* (at your option) any later version.
9		*
10		* GameQ is distributed in the hope that it will be useful,
11		* but WITHOUT ANY WARRANTY; without even the implied warranty of
12		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13		* GNU Lesser General Public License for more details.
14		*
15		* You should have received a copy of the GNU Lesser General Public License
16		* along with this program. If not, see <http://www.gnu.org/licenses/>.
17		*/
18
19		namespace GameQ\Protocols;
20
21		use GameQ\Protocol;
22		use GameQ\Buffer;
23		use GameQ\Result;
24		use GameQ\Server;
25		use GameQ\Exception\Protocol as Exception;
26
27		/**
28		* San Andreas Multiplayer Protocol Class (samp)
29		*
30		* Note:
31		* Player information will not be returned if player count is over 256
32		*
33		* @author Austin Bischoff <[email protected]>
34		*/
35		class Samp extends Protocol
36		{
37
38		/**
39		* Array of packets we want to look up.
40		* Each key should correspond to a defined method in this or a parent class
41		*
42		* @type array
43		*/
44		protected $packets = [
45		self::PACKET_STATUS => "SAMP%si",
46		self::PACKET_PLAYERS => "SAMP%sd",
47		self::PACKET_RULES => "SAMP%sr",
48		];
49
50		/**
51		* Use the response flag to figure out what method to run
52		*
53		* @type array
54		*/
55		protected $responses = [
56		"\x69" => "processStatus", // i
57		"\x64" => "processPlayers", // d
58		"\x72" => "processRules", // r
59		];
60
61		/**
62		* The query protocol used to make the call
63		*
64		* @type string
65		*/
66		protected $protocol = 'samp';
67
68		/**
69		* String name of this protocol class
70		*
71		* @type string
72		*/
73		protected $name = 'samp';
74
75		/**
76		* Longer string name of this protocol class
77		*
78		* @type string
79		*/
80		protected $name_long = "San Andreas Multiplayer";
81
82		/**
83		* Holds the calculated server code that is passed when querying for information
84		*
85		* @type string
86		*/
87		protected $server_code = null;
88
89		/**
90		* The client join link
91		*
92		* @type string
93		*/
94		protected $join_link = "samp://%s:%d/";
95
96		/**
97		* Normalize settings for this protocol
98		*
99		* @type array
100		*/
101		protected $normalize = [
102		// General
103		'general' => [
104		// target => source
105		'dedicated' => 'dedicated',
106		'hostname' => ['hostname', 'servername'],
107		'mapname' => 'mapname',
108		'maxplayers' => 'max_players',
109		'numplayers' => 'num_players',
110		'password' => 'password',
111		],
112		// Individual
113		'player' => [
114		'name' => 'name',
115		'score' => 'score',
116		'ping' => 'ping',
117		],
118		];
119
120		/**
121		* Handle some work before sending the packets out to the server
122		*
123		* @param \GameQ\Server $server
124		*/
125	6	public function beforeSend(Server $server)
126		{
127
128		// Build the server code
129	6	$this->server_code = implode('', array_map('chr', explode('.', $server->ip()))) .
130	6	pack("S", $server->portClient());
131
132		// Loop over the packets and update them
133	6	foreach ($this->packets as $packetType => $packet) {
134		// Fill out the packet with the server info
135	6	$this->packets[$packetType] = sprintf($packet, $this->server_code);
136		}
137	6	}
138
139		/**
140		* Process the response
141		*
142		* @return array
143		* @throws \GameQ\Exception\Protocol
144		*/
145	6	public function processResponse()
146		{
147
148		// Results that will be returned
149	6	$results = [];
150
151		// Get the length of the server code so we can figure out how much to read later
152	6	$serverCodeLength = strlen($this->server_code);
153
154		// We need to pre-sort these for split packets so we can do extra work where needed
155	6	foreach ($this->packets_response as $response) {
156		// Make new buffer
157	6	$buffer = new Buffer($response);
158
159		// Check the header, should be SAMP
160	6	if (($header = $buffer->read(4)) !== 'SAMP') {
161	1	throw new Exception(__METHOD__ . " header response '{$header}' is not valid");
162		}
163
164		// Check to make sure the server response code matches what we sent
165	4	if ($buffer->read($serverCodeLength) !== $this->server_code) {
166	1	throw new Exception(__METHOD__ . " code check failed.");
167		}
168
169		// Figure out what packet response this is for
170	3	$response_type = $buffer->read(1);
171
172		// Figure out which packet response this is
173	3	if (!array_key_exists($response_type, $this->responses)) {
174	2	throw new Exception(__METHOD__ . " response type '{$response_type}' is not valid");
175		}
176
177		// Now we need to call the proper method
178	1	$results = array_merge(
179	1	$results,
180	1	call_user_func_array([$this, $this->responses[$response_type]], [$buffer])
181		);
182
183	1	unset($buffer);
184		}
185
186	1	return $results;
187		}
188
189		/*
190		* Internal methods
191		*/
192
193		/**
194		* Handles processing the server status data
195		*
196		* @param \GameQ\Buffer $buffer
197		*
198		* @return array
199		* @throws \GameQ\Exception\Protocol
200		*/
201	1	protected function processStatus(Buffer $buffer)
202		{
203
204		// Set the result to a new result instance
205	1	$result = new Result();
206
207		// Always dedicated
208	1	$result->add('dedicated', 1);
209
210		// Pull out the server information
211	1	$result->add('password', $buffer->readInt8());
212	1	$result->add('num_players', $buffer->readInt16());
213	1	$result->add('max_players', $buffer->readInt16());
214
215		// These are read differently for these last 3
216	1	$result->add('servername', utf8_encode($buffer->read($buffer->readInt32())));
217	1	$result->add('gametype', $buffer->read($buffer->readInt32()));
218	1	$result->add('language', $buffer->read($buffer->readInt32()));
219
220	1	unset($buffer);
221
222	1	return $result->fetch();
223		}
224
225		/**
226		* Handles processing the player data into a usable format
227		*
228		* @param \GameQ\Buffer $buffer
229		*
230		* @return array
231		*/
232	1	protected function processPlayers(Buffer $buffer)
233		{
234
235		// Set the result to a new result instance
236	1	$result = new Result();
237
238		// Number of players
239	1	$result->add('num_players', $buffer->readInt16());
240
241		// Run until we run out of buffer
242	1	while ($buffer->getLength()) {
243	1	$result->addPlayer('id', $buffer->readInt8());
244	1	$result->addPlayer('name', utf8_encode($buffer->readPascalString()));
245	1	$result->addPlayer('score', $buffer->readInt32());
246	1	$result->addPlayer('ping', $buffer->readInt32());
247		}
248
249	1	unset($buffer);
250
251	1	return $result->fetch();
252		}
253
254		/**
255		* Handles processing the rules data into a usable format
256		*
257		* @param \GameQ\Buffer $buffer
258		*
259		* @return array
260		*/
261	1	protected function processRules(Buffer $buffer)
262		{
263
264		// Set the result to a new result instance
265	1	$result = new Result();
266
267		// Number of rules
268	1	$result->add('num_rules', $buffer->readInt16());
269
270		// Run until we run out of buffer
271	1	while ($buffer->getLength()) {
272	1	$result->add($buffer->readPascalString(), $buffer->readPascalString());
273		}
274
275	1	unset($buffer);
276
277	1	return $result->fetch();
278		}
279		}
280

Austinb / GameQ

Push — v3 ( 962004...bdfc5f )

Samp::processResponse() A

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