Passed
Pull Request — main (#146)
by Andreas
01:46
created

PDO::doQuery()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 6
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 2

Importance

Changes 0
Metric Value
cc 2
eloc 3
c 0
b 0
f 0
nc 2
nop 1
dl 0
loc 6
ccs 4
cts 4
cp 1
crap 2
rs 10
1
<?php
2
/**
3
 * Licensed to CRATE Technology GmbH("Crate") under one or more contributor
4
 * license agreements.  See the NOTICE file distributed with this work for
5
 * additional information regarding copyright ownership.  Crate licenses
6
 * this file to you under the Apache License, Version 2.0 (the "License");
7
 * you may not use this file except in compliance with the License.  You may
8
 * obtain a copy of the License at
9
 *
10
 * http://www.apache.org/licenses/LICENSE-2.0
11
 *
12
 * Unless required by applicable law or agreed to in writing, software
13
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
14
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
15
 * License for the specific language governing permissions and limitations
16
 * under the License.
17
 *
18
 * However, if you have executed another commercial license agreement
19
 * with Crate these terms will supersede the license and you may use the
20
 * software solely pursuant to the terms of the relevant commercial agreement.
21
 */
22
23
declare(strict_types=1);
24
25
namespace Crate\PDO;
26
27
use Crate\PDO\Exception\InvalidArgumentException;
28
use Crate\PDO\Exception\PDOException;
29
use Crate\PDO\Http\ServerInterface;
30
use Crate\PDO\Http\ServerPool;
31
use Crate\Stdlib\ArrayUtils;
32
use PDO as BasePDO;
33
34
use const PHP_VERSION_ID;
35
36
class PDO extends BasePDO implements PDOInterface
37
{
38
    use PDOImplementation;
39
40
    public const VERSION     = '2.1.4';
41
    public const DRIVER_NAME = 'crate';
42
43
    public const DSN_REGEX = '/^(?:crate:)(?:((?:[\w\.-]+:\d+\,?)+))\/?([\w]+)?$/';
44
45
    public const CRATE_ATTR_HTTP_BASIC_AUTH = 1000;
46
    public const CRATE_ATTR_DEFAULT_SCHEMA  = 1001;
47
48
    public const CRATE_ATTR_SSL_MODE                                       = 1008;
49
    public const CRATE_ATTR_SSL_MODE_DISABLED                              = 1;
50
    public const CRATE_ATTR_SSL_MODE_ENABLED_BUT_WITHOUT_HOST_VERIFICATION = 2;
51
    public const CRATE_ATTR_SSL_MODE_REQUIRED                              = 3;
52
53
    public const CRATE_ATTR_SSL_KEY_PATH      = 1002;
54
    public const CRATE_ATTR_SSL_KEY_PASSWORD  = 1003;
55
    public const CRATE_ATTR_SSL_CERT_PATH     = 1004;
56
    public const CRATE_ATTR_SSL_CERT_PASSWORD = 1005;
57
    public const CRATE_ATTR_SSL_CA_PATH       = 1006;
58
    public const CRATE_ATTR_SSL_CA_PASSWORD   = 1007;
59
60
    public const PARAM_FLOAT     = 6;
61
    public const PARAM_DOUBLE    = 7;
62
    public const PARAM_LONG      = 8;
63
    public const PARAM_ARRAY     = 9;
64
    public const PARAM_OBJECT    = 10;
65
    public const PARAM_TIMESTAMP = 11;
66
    public const PARAM_IP        = 12;
67
68
    /**
69
     * @var array
70
     */
71
    private $attributes = [
72
        'defaultFetchMode' => self::FETCH_BOTH,
73
        'errorMode'        => self::ERRMODE_SILENT,
74
        'sslMode'          => self::CRATE_ATTR_SSL_MODE_DISABLED,
75
        'statementClass'   => PDOStatement::class,
76
        'timeout'          => 0.0,
77
        'auth'             => [],
78
        'defaultSchema'    => 'doc',
79
        'bulkMode'         => false,
80
    ];
81
82
    /**
83
     * @var Http\ServerInterface
84
     */
85
    private $server;
86
87
    /**
88
     * @var PDOStatement|null
89
     */
90
    private $lastStatement;
91
92
    /**
93
     * @var callable
94
     */
95
    private $request;
96
97
    /**
98
     * {@inheritDoc}
99
     *
100
     * @param string     $dsn      The HTTP endpoint to call
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     * @param null       $username Username for basic auth
0 ignored issues
show
Documentation Bug introduced by
Are you sure the doc-type for parameter $username is correct as it would always require null to be passed?
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102
     * @param null       $passwd   Password for basic auth
0 ignored issues
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Documentation Bug introduced by
Are you sure the doc-type for parameter $passwd is correct as it would always require null to be passed?
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103
     * @param null|array $options  Attributes to set on the PDO
104
     */
105 36
    public function __construct($dsn, $username = null, $passwd = null, $options = [])
106
    {
107
108 36
        if (PHP_VERSION_ID < 80000) {
109
            trigger_error(
110
                "`crate/crate-pdo` will stop supporting PHP7 on one of the upcoming " .
111
                "releases. Please upgrade to PHP8.",
112
                E_USER_DEPRECATED
113
            );
114
        }
115
116 36
        $dsnParts = self::parseDSN($dsn);
117 36
        $servers  = self::serversFromDsnParts($dsnParts);
118
119 36
        $this->setServer(new ServerPool($servers));
120
121 36
        foreach ((array)$options as $attribute => $value) {
122 2
            $this->setAttribute($attribute, $value);
123
        }
124
125 36
        if (!empty($username)) {
126 4
            $this->setAttribute(self::CRATE_ATTR_HTTP_BASIC_AUTH, [$username, $passwd]);
127
        }
128
129 36
        if (!empty($dsnParts[1])) {
130
            $this->setAttribute(self::CRATE_ATTR_DEFAULT_SCHEMA, $dsnParts[1]);
131
        }
132
133
        // Define a callback that will be used in the PDOStatements
134
        // This way we don't expose this as a public api to the end users.
135 36
        $this->request = function (PDOStatement $statement, $sql, array $parameters) {
136
137 2
            $this->lastStatement = $statement;
138
139
            try {
140 2
                if ($statement->isBulkMode()) {
141
                    return $this->server->executeBulk($sql, $parameters);
142
                } else {
143 2
                    return $this->server->execute($sql, $parameters);
144
                }
145
            } catch (Exception\RuntimeException $e) {
146
                if ($this->getAttribute(self::ATTR_ERRMODE) === self::ERRMODE_EXCEPTION) {
147
                    throw new Exception\PDOException($e->getMessage(), $e->getCode());
148
                }
149
150
                if ($this->getAttribute(self::ATTR_ERRMODE) === self::ERRMODE_WARNING) {
151
                    trigger_error(sprintf('[%d] %s', $e->getCode(), $e->getMessage()), E_USER_WARNING);
152
                }
153
154
                // should probably wrap this in a error object ?
155
                return [
156
                    'code'    => $e->getCode(),
157
                    'message' => $e->getMessage(),
158
                ];
159
            }
160 36
        };
161
    }
162
163
    /**
164
     * Change the server implementation
165
     *
166
     * @param ServerInterface $server
167
     */
168 28
    public function setServer(ServerInterface $server): void
169
    {
170 28
        $this->server = $server;
171 28
        $this->server->configure($this);
172
    }
173
174
    /**
175
     * Extract servers and optional custom schema from DSN string
176
     *
177
     * @param string $dsn The DSN string
178
     *
179
     * @throws \Crate\PDO\Exception\PDOException on an invalid DSN string
180
     *
181
     * @return array An array of ['host:post,host:port,...', 'schema']
182
     */
183 110
    private static function parseDSN($dsn)
184
    {
185 110
        $matches = [];
186
187 110
        if (!preg_match(static::DSN_REGEX, $dsn, $matches)) {
188 8
            throw new PDOException(sprintf('Invalid DSN %s', $dsn));
189
        }
190
191 102
        return array_slice($matches, 1);
192
    }
193
194
    /**
195
     * Extract host:port pairs out of the DSN parts
196
     *
197
     * @param array $dsnParts The parts of the parsed DSN string
198
     *
199
     * @return array An array of host:port strings
200
     */
201 100
    private static function serversFromDsnParts($dsnParts)
202
    {
203 100
        return explode(',', trim($dsnParts[0], ','));
204
    }
205
206
    /**
207
     * {@inheritDoc}
208
     */
209 4
    #[\ReturnTypeWillChange]
210
    public function prepare(string $statement, array $options = [])
211
    {
212 4
        $options = ArrayUtils::toArray($options);
213
214 4
        if (isset($options[self::ATTR_CURSOR])) {
215
            trigger_error(sprintf('%s not supported', __METHOD__), E_USER_WARNING);
216
217
            return true;
218
        }
219
220 4
        $className = $this->attributes['statementClass'];
221
222 4
        return new $className($this, $this->request, $statement, $options);
223
    }
224
225
    /**
226
     * {@inheritDoc}
227
     */
228 2
    public function beginTransaction(): bool
229
    {
230 2
        return true;
231
    }
232
233
    /**
234
     * {@inheritDoc}
235
     */
236 2
    public function commit(): bool
237
    {
238 2
        return true;
239
    }
240
241
    /**
242
     * {@inheritDoc}
243
     */
244 2
    public function rollBack(): bool
245
    {
246 2
        throw new Exception\UnsupportedException;
247
    }
248
249
    /**
250
     * {@inheritDoc}
251
     */
252 2
    public function inTransaction(): bool
253
    {
254 2
        return false;
255
    }
256
257
    /**
258
     * {@inheritDoc}
259
     */
260
    public function exec($statement): int
261
    {
262
        $statement = $this->prepare($statement);
263
        $result    = $statement->execute();
264
265
        return $result === false ? false : $statement->rowCount();
0 ignored issues
show
Bug Best Practice introduced by
The expression return $result === false... $statement->rowCount() could return the type false which is incompatible with the type-hinted return integer. Consider adding an additional type-check to rule them out.
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266
    }
267
268
    /**
269
     * {@inheritDoc}
270
     */
271 2
    public function doQuery($statement)
272
    {
273 2
        $statement = $this->prepare($statement);
274 2
        $result    = $statement->execute();
275
276 2
        return $result === false ? false : $statement;
277
    }
278
279
    /**
280
     * {@inheritDoc}
281
     */
282 2
    public function lastInsertId(?string $name = null): string
283
    {
284 2
        throw new Exception\UnsupportedException;
285
    }
286
287
    /**
288
     * {@inheritDoc}
289
     */
290
    public function errorCode(): ?string
291
    {
292
        return $this->lastStatement === null ? null : $this->lastStatement->errorCode();
293
    }
294
295
    /**
296
     * {@inheritDoc}
297
     */
298
    public function errorInfo(): array
299
    {
300
        return $this->lastStatement === null ? null : $this->lastStatement->errorInfo();
0 ignored issues
show
Bug Best Practice introduced by
The expression return $this->lastStatem...tStatement->errorInfo() could return the type null which is incompatible with the type-hinted return array. Consider adding an additional type-check to rule them out.
Loading history...
301
    }
302
303
    /**
304
     * {@inheritDoc}
305
     *
306
     * @throws \Crate\PDO\Exception\PDOException
307
     * @throws \Crate\PDO\Exception\InvalidArgumentException
308
     */
309 32
    #[\ReturnTypeWillChange]
310
    public function setAttribute($attribute, $value)
311
    {
312
        switch ($attribute) {
313 32
            case self::ATTR_DEFAULT_FETCH_MODE:
314 2
                $this->attributes['defaultFetchMode'] = $value;
315 2
                break;
316
317 30
            case self::ATTR_ERRMODE:
318 2
                $this->attributes['errorMode'] = $value;
319 2
                break;
320
321 28
            case self::ATTR_STATEMENT_CLASS:
322 2
                $this->attributes['statementClass'] = $value;
323 2
                break;
324
325 26
            case self::ATTR_TIMEOUT:
326 4
                $this->attributes['timeout'] = (int)$value;
327 4
                break;
328
329 24
            case self::CRATE_ATTR_HTTP_BASIC_AUTH:
330 4
                if (!is_array($value) && $value !== null) {
331
                    throw new InvalidArgumentException(
332
                        'Value probided to CRATE_ATTR_HTTP_BASIC_AUTH must be null or an array'
333
                    );
334
                }
335
336 4
                $this->attributes['auth'] = $value;
337 4
                break;
338
339 24
            case self::CRATE_ATTR_DEFAULT_SCHEMA:
340 4
                $this->attributes['defaultSchema'] = $value;
341 4
                break;
342
343 20
            case self::CRATE_ATTR_SSL_MODE:
344 18
                $this->attributes['sslMode'] = $value;
345 18
                break;
346
347 14
            case self::CRATE_ATTR_SSL_CA_PATH:
348 4
                $this->attributes['sslCa'] = $value;
349 4
                break;
350
351 12
            case self::CRATE_ATTR_SSL_CA_PASSWORD:
352 2
                $this->attributes['sslCaPassword'] = $value;
353 2
                break;
354
355 10
            case self::CRATE_ATTR_SSL_CERT_PATH:
356 4
                $this->attributes['sslCert'] = $value;
357 4
                break;
358
359 8
            case self::CRATE_ATTR_SSL_CERT_PASSWORD:
360 2
                $this->attributes['sslCertPassword'] = $value;
361 2
                break;
362
363 6
            case self::CRATE_ATTR_SSL_KEY_PATH:
364 4
                $this->attributes['sslKey'] = $value;
365 4
                break;
366
367 4
            case self::CRATE_ATTR_SSL_KEY_PASSWORD:
368 2
                $this->attributes['sslKeyPassword'] = $value;
369 2
                break;
370
371
            default:
372 2
                throw new Exception\PDOException('Unsupported driver attribute');
373
        }
374
375
        // A setting changed so we need to reconfigure the server pool
376 30
        $this->server->configure($this);
377 30
        return true;
378
    }
379
380
    /**
381
     * {@inheritDoc}
382
     *
383
     * @throws \Crate\PDO\Exception\PDOException
384
     */
385 50
    #[\ReturnTypeWillChange]
386
    public function getAttribute($attribute)
387
    {
388
        switch ($attribute) {
389 50
            case self::ATTR_PREFETCH:
390 50
            case self::ATTR_PERSISTENT:
391 4
                return false;
392
393 50
            case self::ATTR_CLIENT_VERSION:
394 2
                return self::VERSION;
395
396 50
            case self::ATTR_SERVER_VERSION:
397
                return $this->server->getServerVersion();
398
399 50
            case self::ATTR_SERVER_INFO:
400
                return $this->server->getServerInfo();
401
402 50
            case self::ATTR_TIMEOUT:
403 50
                return $this->attributes['timeout'];
404
405 50
            case self::CRATE_ATTR_HTTP_BASIC_AUTH:
406 50
                return $this->attributes['auth'];
407
408 50
            case self::ATTR_DEFAULT_FETCH_MODE:
409 4
                return $this->attributes['defaultFetchMode'];
410
411 50
            case self::ATTR_ERRMODE:
412 2
                return $this->attributes['errorMode'];
413
414 50
            case self::ATTR_DRIVER_NAME:
415 2
                return static::DRIVER_NAME;
416
417 50
            case self::ATTR_STATEMENT_CLASS:
418 2
                return [$this->attributes['statementClass']];
419
420 50
            case self::CRATE_ATTR_DEFAULT_SCHEMA:
421 50
                return $this->attributes['defaultSchema'];
422
423 50
            case self::CRATE_ATTR_SSL_MODE:
424 50
                return $this->attributes['sslMode'];
425
426 50
            case self::CRATE_ATTR_SSL_CA_PATH:
427 50
                return $this->attributes['sslCa'] ?? null;
428
429 50
            case self::CRATE_ATTR_SSL_CA_PASSWORD:
430 50
                return $this->attributes['sslCaPassword'] ?? null;
431
432 50
            case self::CRATE_ATTR_SSL_CERT_PATH:
433 50
                return $this->attributes['sslCert'] ?? null;
434
435 50
            case self::CRATE_ATTR_SSL_CERT_PASSWORD:
436 50
                return $this->attributes['sslCertPassword'] ?? null;
437
438 50
            case self::CRATE_ATTR_SSL_KEY_PATH:
439 50
                return $this->attributes['sslKey'] ?? null;
440
441 50
            case self::CRATE_ATTR_SSL_KEY_PASSWORD:
442 50
                return $this->attributes['sslKeyPassword'] ?? null;
443
444
            default:
445
                // PHP Switch is a lose comparison
446 4
                if ($attribute === self::ATTR_AUTOCOMMIT) {
447 2
                    return true;
448
                }
449
450 2
                throw new Exception\PDOException(sprintf('Unsupported driver attribute: %s', $attribute));
451
        }
452
    }
453
454
    /**
455
     * {@inheritDoc}
456
     */
457 8
    #[\ReturnTypeWillChange]
458
    public function quote(string $string, int $parameter_type = self::PARAM_STR)
459
    {
460
        switch ($parameter_type) {
461 8
            case self::PARAM_INT:
462 2
                return (int)$string;
463
464 8
            case self::PARAM_BOOL:
465 2
                return (bool)$string;
466
467 8
            case self::PARAM_NULL:
468 2
                return null;
469
470 6
            case self::PARAM_LOB:
471 2
                throw new Exception\UnsupportedException('This is not supported by crate.io');
472
473 4
            case self::PARAM_STR:
474 2
                throw new Exception\UnsupportedException('This is not supported, please use prepared statements.');
475
476
            default:
477 2
                throw new Exception\InvalidArgumentException('Unknown param type');
478
        }
479
    }
480
481
    /**
482
     * {@inheritDoc}
483
     */
484 2
    public static function getAvailableDrivers(): array
485
    {
486 2
        return array_merge(parent::getAvailableDrivers(), [static::DRIVER_NAME]);
487
    }
488
489
    public function getServerVersion(): string
490
    {
491
        return $this->server->getServerVersion();
492
    }
493
494
    public function getServerInfo(): string
495
    {
496
        return $this->getServerVersion();
497
    }
498
}
499