DbSettings::parseResources() - Code Metrics - Inspection of "Merge branch 'release/1.97.9'" - netz98/n98-magerun - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( bd5921...d9293e )

by Christian

created 2016-01-05 12:43 UTC

DbSettings::parseResources() B

↳ Parent: DbSettings

Complexity

Conditions	3
Paths	3

Size

Total Lines	41
Code Lines	26

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	41
rs	8.8571
cc	3
eloc	26
nc	3
nop	1

<?php
/*
 * @author Tom Klingenberg <[email protected]>
 */

namespace N98\Magento;

use ArrayAccess;
use ArrayIterator;
use BadMethodCallException;
use InvalidArgumentException;
use IteratorAggregate;
use PDO;
use PDOException;
use RuntimeException;
use SimpleXMLElement;

/**
 * Class DbSettings
 *
 * Database settings.
 *
 * The Magento database settings are stored in a SimpleXMLElement structure
 *
 * @package N98\Magento
 */
class DbSettings implements ArrayAccess, IteratorAggregate
{
    /**
     * @var string|null known field members
     */
    private $tablePrefix, $host, $port, $unixSocket, $dbName, $username, $password;


    /**
     * @var array field array
     */
    private $config;

    /**
     * @param string $file path to app/etc/local.xml
     */
    public function __construct($file)
    {
        $this->setFile($file);
    }

    /**
     * @param string $file path to app/etc/local.xml
     *
     * @throws InvalidArgumentException if the file is invalid
     */
    public function setFile($file)
    {
        if (!is_readable($file)) {
            throw new InvalidArgumentException(
                sprintf('"app/etc/local.xml"-file %s is not readable', var_export($file, true))
            );
        }

        $saved = libxml_use_internal_errors(true);
        $config = simplexml_load_file($file);
        libxml_use_internal_errors($saved);

        if (false === $config) {
            throw new InvalidArgumentException(
                sprintf('Unable to open "app/etc/local.xml"-file %s and parse it as XML', var_export($file, true))
            );
        }

        $resources = $config->global->resources;
        if (!$resources) {
            throw new InvalidArgumentException('DB global resources was not found in "app/etc/local.xml"-file');
        }

        if (!$resources->default_setup->connection) {
            throw new InvalidArgumentException('DB settings (default_setup) was not found in "app/etc/local.xml"-file');
        }

        $this->parseResources($resources);
    }

    /**
     * helper method to parse config file segment related to the database settings
     *
     * @param SimpleXMLElement $resources
     */
    private function parseResources(SimpleXMLElement $resources)
    {
        // default values
        $config = array(
            'host'        => null,
            'port'        => null,
            'unix_socket' => null,
            'dbname'      => null,
            'username'    => null,
            'password'    => null,
        );

        $config           = ((array) $resources->default_setup->connection) + $config;
        $config['prefix'] = (string) $resources->db->table_prefix;

        // known parameters: host, port, unix_socket, dbname, username, password, options, charset, persistent,
        //                   driver_options
        //                   (port is deprecated; removed in magento 2, use port in host setting <host>:<port>)

        unset($config['comment']);

        /* @see Varien_Db_Adapter_Pdo_Mysql::_connect */
        if (strpos($config['host'], '/') !== false) {
            $config['unix_socket'] = (string) $config['host'];
            $config['host'] = null;
            $config['port'] = null;
        } else if (strpos($config['host'], ':') !== false) {
            list($config['host'], $config['port']) = explode(':', $config['host']);
            $config['unix_socket'] = null;
        }

        $this->config      = $config;

        $this->tablePrefix = $config['prefix'];
        $this->host        = $config['host'];
        $this->port        = $config['port'];
        $this->unixSocket  = $config['unix_socket'];
        $this->dbName      = $config['dbname'];
        $this->username    = $config['username'];
        $this->password    = $config['password'];
    }

    /**
     * Get Mysql PDO DSN
     *
     * @return string
     */
    public function getDsn()
    {
        $dsn = 'mysql:';

        $named = array();

        // blacklisted in prev. DSN creation: username, password, options, charset, persistent, driver_options, dbname

        if (isset($this->unixSocket)) {
            $named['unix_socket'] = $this->unixSocket;
        } else {
            $named['host'] = $this->host;
            if (isset($this->port)) {
                $named['port'] = $this->port;
            }
        }

        $options = array();
        foreach ($named as $name => $value) {
            $options[$name] = "{$name}={$value}";
        }

        return $dsn . implode(';', $options);
    }

    /**
     * Connects to the database without initializing magento
     *
     * @throws RuntimeException if pdo_mysql extension is not installed
     * @return PDO
     */
    public function getConnection()
    {
        if (!extension_loaded('pdo_mysql')) {
            throw new RuntimeException('pdo_mysql extension is not installed');
        }

        $database = $this->getDatabaseName();

        $connection = new PDO(
            $this->getDsn(),
            $this->getUsername(),
            $this->getPassword()
        );

        /** @link http://bugs.mysql.com/bug.php?id=18551 */
        $connection->query("SET SQL_MODE=''");

        try {
            $connection->query('USE ' . $this->quoteIdentifier($database));
        } catch (PDOException $e) {
            throw new RuntimeException(
                sprintf("Unable to use database '%s': %s %s", $database, get_class($e), $e->getMessage()), 0, $e
            );
        }

        $connection->query("SET NAMES utf8");

        $connection->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
        $connection->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);

        return $connection;
    }

    public function getMysqlClientToolConnectionString()
    {
        $segments = array();

        if (null !== $this->config['unix_socket']) {
            $segments[] = '--socket=' . escapeshellarg($this->config['unix_socket']);
        } else {
            $segments[] = '-h' . escapeshellarg($this->config['host']);
        }

        $segments[] = '-u' . escapeshellarg($this->config['username']);
        if (null !== $this->config['port']) {
            $segments[] = '-P' . escapeshellarg($this->config['port']);
        }
        if (strlen($this->config['password'])) {
            $segments[] = '-p' . escapeshellarg($this->config['password']);
        }
        $segments[] = escapeshellarg($this->config['dbname']);

        return implode(' ', $segments);
    }

    /**
     * Mysql quoting of an identifier
     *
     * @param string $identifier UTF-8 encoded
     *
     * @return string quoted identifier
     */
    private function quoteIdentifier($identifier)
    {
        $quote = '`'; // le backtique

        $pattern = '~^(?:[\x1-\x7F]|[\xC2-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2})+$~';

        if (!preg_match($pattern, $identifier)) {
            throw new InvalidArgumentException(
                sprintf(
                    'Invalid identifier, must not contain NUL and must be UTF-8 encoded in the BMP: %s (hex: %s)',
                    var_export($identifier), bin2hex($identifier)
                )
            );
        }

        return $quote . strtr($identifier, array($quote => $quote . $quote)) . $quote;
    }

    /**
     * @return bool
     */
    public function isSocketConnect()
    {
        return isset($this->config['unix_socket']);
    }

    /**
     * @return string table prefix, null if not in the settings (no or empty prefix)
     */
    public function getTablePrefix()
    {
        return $this->tablePrefix;
    }

    /**
     * @return string hostname, null if there is no hostname setup (e.g. unix_socket)
     */
    public function getHost()
    {
        return $this->host;
    }

    /**
     * @return string port, null if not setup
     */
    public function getPort()
    {
        return $this->port;
    }

    /**
     * @return string username
     */
    public function getUsername()
    {
        return $this->username;
    }

    /**
     * @return string password
     */
    public function getPassword()
    {
        return $this->password;
    }

    /**
     * @return string unix socket, null if not in use
     */
    public function getUnixSocket()
    {
        return $this->unixSocket;
    }

    /**
     * content of previous $dbSettings field of the DatabaseHelper
     *
     * @return array
     */
    public function getConfig()
    {
        return $this->config;
    }

    /**
     * @return string of the database identifier, null if not in use
     */
    public function getDatabaseName()
    {
        return $this->dbName;
    }

    /*
     * ArrayAccess interface
     */

    /**
     * @return boolean true on success or false on failure.
     */
    public function offsetExists($offset)
    {
        return isset($this->config[$offset]);
    }

    /**
     * @return mixed Can return all value types.
     */
    public function offsetGet($offset)
    {
        if (isset($this->config[$offset])) {
            return $this->config[$offset];
        }

        return null;
    }

    /**
     * @param mixed $offset
     * @param mixed $value
     *
     * @throws BadMethodCallException
     */
    public function offsetSet($offset, $value)
    {
        throw new BadMethodCallException('dbSettings are read-only');
    }

    /**
     * @param mixed $offset
     *
     * @throws BadMethodCallException
     */
    public function offsetUnset($offset)
    {
        throw new BadMethodCallException('dbSettings are read-only');
    }

    /*
     * IteratorAggregate
     */

    /**
     * @return ArrayIterator
     */
    public function getIterator()
    {
        return new ArrayIterator($this->config);
    }
}


1			<?php
2			/*
3			* @author Tom Klingenberg <[email protected]>
4			*/
5
6			namespace N98\Magento;
7
8			use ArrayAccess;
9			use ArrayIterator;
10			use BadMethodCallException;
11			use InvalidArgumentException;
12			use IteratorAggregate;
13			use PDO;
14			use PDOException;
15			use RuntimeException;
16			use SimpleXMLElement;
17
18			/**
19			* Class DbSettings
20			*
21			* Database settings.
22			*
23			* The Magento database settings are stored in a SimpleXMLElement structure
24			*
25			* @package N98\Magento
26			*/
27			class DbSettings implements ArrayAccess, IteratorAggregate
28			{
29			/**
30			* @var string\|null known field members
31			*/
32			private $tablePrefix, $host, $port, $unixSocket, $dbName, $username, $password;
			0 ignored issues – show Coding Style introduced 2016-01-01 09:21 UTC by Report Bug Copy Issue Report It is generally advisable to only define one property per statement. Only declaring a single property per statement allows you to later on add doc comments more easily. It is also recommended by PSR2, so it is a common style that many people expect. Loading history...
33
34			/**
35			* @var array field array
36			*/
37			private $config;
38
39			/**
40			* @param string $file path to app/etc/local.xml
41			*/
42			public function __construct($file)
43			{
44			$this->setFile($file);
45			}
46
47			/**
48			* @param string $file path to app/etc/local.xml
49			*
50			* @throws InvalidArgumentException if the file is invalid
51			*/
52			public function setFile($file)
53			{
54			if (!is_readable($file)) {
55			throw new InvalidArgumentException(
56			sprintf('"app/etc/local.xml"-file %s is not readable', var_export($file, true))
57			);
58			}
59
60			$saved = libxml_use_internal_errors(true);
61			$config = simplexml_load_file($file);
62			libxml_use_internal_errors($saved);
63
64			if (false === $config) {
65			throw new InvalidArgumentException(
66			sprintf('Unable to open "app/etc/local.xml"-file %s and parse it as XML', var_export($file, true))
67			);
68			}
69
70			$resources = $config->global->resources;
71			if (!$resources) {
72			throw new InvalidArgumentException('DB global resources was not found in "app/etc/local.xml"-file');
73			}
74
75			if (!$resources->default_setup->connection) {
76			throw new InvalidArgumentException('DB settings (default_setup) was not found in "app/etc/local.xml"-file');
77			}
78
79			$this->parseResources($resources);
80			}
81
82			/**
83			* helper method to parse config file segment related to the database settings
84			*
85			* @param SimpleXMLElement $resources
86			*/
87			private function parseResources(SimpleXMLElement $resources)
88			{
89			// default values
90			$config = array(
91			'host' => null,
92			'port' => null,
93			'unix_socket' => null,
94			'dbname' => null,
95			'username' => null,
96			'password' => null,
97			);
98
99			$config = ((array) $resources->default_setup->connection) + $config;
100			$config['prefix'] = (string) $resources->db->table_prefix;
101
102			// known parameters: host, port, unix_socket, dbname, username, password, options, charset, persistent,
103			// driver_options
104			// (port is deprecated; removed in magento 2, use port in host setting <host>:<port>)
105
106			unset($config['comment']);
107
108			/* @see Varien_Db_Adapter_Pdo_Mysql::_connect */
109			if (strpos($config['host'], '/') !== false) {
110			$config['unix_socket'] = (string) $config['host'];
111			$config['host'] = null;
112			$config['port'] = null;
113			} else if (strpos($config['host'], ':') !== false) {
114			list($config['host'], $config['port']) = explode(':', $config['host']);
115			$config['unix_socket'] = null;
116			}
117
118			$this->config = $config;
119
120			$this->tablePrefix = $config['prefix'];
121			$this->host = $config['host'];
122			$this->port = $config['port'];
123			$this->unixSocket = $config['unix_socket'];
124			$this->dbName = $config['dbname'];
125			$this->username = $config['username'];
126			$this->password = $config['password'];
127			}
128
129			/**
130			* Get Mysql PDO DSN
131			*
132			* @return string
133			*/
134			public function getDsn()
135			{
136			$dsn = 'mysql:';
137
138			$named = array();
139
140			// blacklisted in prev. DSN creation: username, password, options, charset, persistent, driver_options, dbname
141
142			if (isset($this->unixSocket)) {
143			$named['unix_socket'] = $this->unixSocket;
144			} else {
145			$named['host'] = $this->host;
146			if (isset($this->port)) {
147			$named['port'] = $this->port;
148			}
149			}
150
151			$options = array();
152			foreach ($named as $name => $value) {
153			$options[$name] = "{$name}={$value}";
154			}
155
156			return $dsn . implode(';', $options);
157			}
158
159			/**
160			* Connects to the database without initializing magento
161			*
162			* @throws RuntimeException if pdo_mysql extension is not installed
163			* @return PDO
164			*/
165			public function getConnection()
166			{
167			if (!extension_loaded('pdo_mysql')) {
168			throw new RuntimeException('pdo_mysql extension is not installed');
169			}
170
171			$database = $this->getDatabaseName();
172
173			$connection = new PDO(
174			$this->getDsn(),
175			$this->getUsername(),
176			$this->getPassword()
177			);
178
179			/** @link http://bugs.mysql.com/bug.php?id=18551 */
180			$connection->query("SET SQL_MODE=''");
181
182			try {
183			$connection->query('USE ' . $this->quoteIdentifier($database));
184			} catch (PDOException $e) {
185			throw new RuntimeException(
186			sprintf("Unable to use database '%s': %s %s", $database, get_class($e), $e->getMessage()), 0, $e
187			);
188			}
189
190			$connection->query("SET NAMES utf8");
191
192			$connection->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
193			$connection->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);
194
195			return $connection;
196			}
197
198			public function getMysqlClientToolConnectionString()
199			{
200			$segments = array();
201
202			if (null !== $this->config['unix_socket']) {
203			$segments[] = '--socket=' . escapeshellarg($this->config['unix_socket']);
204			} else {
205			$segments[] = '-h' . escapeshellarg($this->config['host']);
206			}
207
208			$segments[] = '-u' . escapeshellarg($this->config['username']);
209			if (null !== $this->config['port']) {
210			$segments[] = '-P' . escapeshellarg($this->config['port']);
211			}
212			if (strlen($this->config['password'])) {
213			$segments[] = '-p' . escapeshellarg($this->config['password']);
214			}
215			$segments[] = escapeshellarg($this->config['dbname']);
216
217			return implode(' ', $segments);
218			}
219
220			/**
221			* Mysql quoting of an identifier
222			*
223			* @param string $identifier UTF-8 encoded
224			*
225			* @return string quoted identifier
226			*/
227			private function quoteIdentifier($identifier)
228			{
229			$quote = '`'; // le backtique
230
231			$pattern = '~^(?:[\x1-\x7F]\|[\xC2-\xDF][\x80-\xBF]\|[\xE0-\xEF][\x80-\xBF]{2})+$~';
232
233			if (!preg_match($pattern, $identifier)) {
234			throw new InvalidArgumentException(
235			sprintf(
236			'Invalid identifier, must not contain NUL and must be UTF-8 encoded in the BMP: %s (hex: %s)',
237			var_export($identifier), bin2hex($identifier)
238			)
239			);
240			}
241
242			return $quote . strtr($identifier, array($quote => $quote . $quote)) . $quote;
243			}
244
245			/**
246			* @return bool
247			*/
248			public function isSocketConnect()
249			{
250			return isset($this->config['unix_socket']);
251			}
252
253			/**
254			* @return string table prefix, null if not in the settings (no or empty prefix)
255			*/
256			public function getTablePrefix()
257			{
258			return $this->tablePrefix;
259			}
260
261			/**
262			* @return string hostname, null if there is no hostname setup (e.g. unix_socket)
263			*/
264			public function getHost()
265			{
266			return $this->host;
267			}
268
269			/**
270			* @return string port, null if not setup
271			*/
272			public function getPort()
273			{
274			return $this->port;
275			}
276
277			/**
278			* @return string username
279			*/
280			public function getUsername()
281			{
282			return $this->username;
283			}
284
285			/**
286			* @return string password
287			*/
288			public function getPassword()
289			{
290			return $this->password;
291			}
292
293			/**
294			* @return string unix socket, null if not in use
295			*/
296			public function getUnixSocket()
297			{
298			return $this->unixSocket;
299			}
300
301			/**
302			* content of previous $dbSettings field of the DatabaseHelper
303			*
304			* @return array
305			*/
306			public function getConfig()
307			{
308			return $this->config;
309			}
310
311			/**
312			* @return string of the database identifier, null if not in use
313			*/
314			public function getDatabaseName()
315			{
316			return $this->dbName;
317			}
318
319			/*
320			* ArrayAccess interface
321			*/
322
323			/**
324			* @return boolean true on success or false on failure.
325			*/
326			public function offsetExists($offset)
327			{
328			return isset($this->config[$offset]);
329			}
330
331			/**
332			* @return mixed Can return all value types.
333			*/
334			public function offsetGet($offset)
335			{
336			if (isset($this->config[$offset])) {
337			return $this->config[$offset];
338			}
339
340			return null;
341			}
342
343			/**
344			* @param mixed $offset
345			* @param mixed $value
346			*
347			* @throws BadMethodCallException
348			*/
349			public function offsetSet($offset, $value)
350			{
351			throw new BadMethodCallException('dbSettings are read-only');
352			}
353
354			/**
355			* @param mixed $offset
356			*
357			* @throws BadMethodCallException
358			*/
359			public function offsetUnset($offset)
360			{
361			throw new BadMethodCallException('dbSettings are read-only');
362			}
363
364			/*
365			* IteratorAggregate
366			*/
367
368			/**
369			* @return ArrayIterator
370			*/
371			public function getIterator()
372			{
373			return new ArrayIterator($this->config);
374			}
375			}
376

netz98 / n98-magerun

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DbSettings::parseResources() B

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