Completed
Push — master ( ef46bd...45441d )
by Jeroen De
02:58
created

ParamDefinition::getCleanDefinitions()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 3
ccs 2
cts 2
cp 1
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
crap 1
1
<?php
2
3
namespace ParamProcessor;
4
5
use Exception;
6
use ParamProcessor\PackagePrivate\Param;
0 ignored issues
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Bug introduced by
This use statement conflicts with another class in this namespace, ParamProcessor\Param.

Let’s assume that you have a directory layout like this:

.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

and let’s assume the following content of Bar.php:

// Bar.php
namespace OtherDir;

use SomeDir\Foo; // This now conflicts the class OtherDir\Foo

If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the same runtime, you will see a PHP error such as the following:

PHP Fatal error:  Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php

However, as OtherDir/Foo.php does not necessarily have to be loaded and the error is only triggered if it is loaded before OtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias:

// Bar.php
namespace OtherDir;

use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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7
use ValueParsers\NullParser;
8
use ValueParsers\ValueParser;
9
use ValueValidators\NullValidator;
10
use ValueValidators\ValueValidator;
11
12
/**
13
 * Specifies what kind of values are accepted, how they should be validated,
14
 * how they should be formatted, what their dependencies are and how they should be described.
15
 *
16
 * Try to avoid using this interface outside of ParamProcessor for anything else than defining parameters.
17
 * In particular, do not derive from this class to implement methods such as formatValue.
18
 *
19
 * @since 1.0
20
 *
21
 * @licence GNU GPL v2+
22
 * @author Jeroen De Dauw < [email protected] >
23
 */
24
/* final */ class ParamDefinition implements IParamDefinition {
0 ignored issues
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Deprecated Code introduced by
The interface ParamProcessor\IParamDefinition has been deprecated with message: since 1.0, use ParamDefinition

This class, trait or interface has been deprecated. The supplier of the file has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the type will be removed from the class and what other constant to use instead.

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25
26
	/**
27
	 * Indicates whether parameters that are provided more then once  should be accepted,
28
	 * and use the first provided value, or not, and generate an error.
29
	 *
30
	 * @deprected since 1.7
31
	 *
32
	 * @var boolean
33
	 */
34
	public static $acceptOverriding = false;
35
36
	/**
37
	 * Indicates whether parameters not found in the criteria list
38
	 * should be stored in case they are not accepted. The default is false.
39
	 *
40
	 * @deprected since 1.7
41
	 *
42
	 * @var boolean
43
	 */
44
	public static $accumulateParameterErrors = false;
45
46
	protected $type;
47
	protected $name;
48
	protected $default;
49
	protected $isList;
50
51
	/**
52
	 * A message that acts as description for the parameter or false when there is none.
53
	 * Can be obtained via getMessage and set via setMessage.
54
	 *
55
	 * @var string
56
	 */
57
	protected $message;
58
59
	/**
60
	 * Indicates if the parameter value should trimmed during the clean process.
61
	 * @var boolean|null
62
	 */
63
	protected $trimValue = null;
64
65
	/**
66
	 * Indicates if the parameter manipulations should be applied to the default value.
67
	 * @var boolean
68
	 */
69
	protected $applyManipulationsToDefault = true;
70
71
	/**
72
	 * Dependency list containing parameters that need to be handled before this one.
73
	 * @var string[]
74
	 */
75
	protected $dependencies = [];
76
77
	/**
78
	 * @var string
79
	 */
80
	protected $delimiter = ',';
81
82
	/**
83
	 * List of aliases for the parameter name.
84
	 *
85
	 * @var string[]
86
	 */
87
	protected $aliases = [];
88
89
	/**
90
	 * Original array definition of the parameter
91
	 * @var array
92
	 */
93
	protected $options = [];
94
95
	/**
96
	 * @var ValueParser|null
97
	 */
98
	protected $parser = null;
99
100
	/**
101
	 * @var ValueValidator|null
102
	 */
103
	protected $validator = null;
104
105
	/**
106
	 * @var callable|null
107
	 */
108
	protected $validationFunction = null;
109
110
	/**
111
	 * @param string $type
112
	 * @param string $name
113
	 * @param mixed $default Use null for no default (which makes the parameter required)
114
	 * @param string $message
115
	 * @param boolean $isList
116
	 */
117 56
	public function __construct( string $type, string $name, $default = null, string $message = null, bool $isList = false ) {
118 56
		$this->type = $type;
119 56
		$this->name = $name;
120 56
		$this->default = $default;
121 56
		$this->message = $message ?? 'validator-message-nodesc';
122 56
		$this->isList = $isList;
123
124 56
		$this->postConstruct();
125 56
	}
126
127
	/**
128
	 * Allows deriving classed to do additional stuff on instance construction
129
	 * without having to get and pass all the constructor arguments.
130
	 *
131
	 * @since 1.0
132
	 */
133 56
	protected function postConstruct() {
134
135 56
	}
136
137
	/**
138
	 * Returns if the value should be trimmed before validation and any further processing.
139
	 * - true: always trim
140
	 * - false: never trim
141
	 * - null: trim based on context settings
142
	 */
143 78
	public function trimDuringClean(): ?bool {
144 78
		return $this->trimValue;
145
	}
146
147
	/**
148
	 * Returns the parameter name aliases.
149
	 * @return string[]
150
	 */
151
	public function getAliases(): array {
152
		return $this->aliases;
153
	}
154
155
	public function hasAlias( string $alias ): bool {
156
		return in_array( $alias, $this->getAliases() );
157
	}
158
159
	/**
160
	 * @deprecated since 1.7
161
	 * Returns if the parameter has a certain dependency.
162
	 */
163
	public function hasDependency( string $dependency ): bool {
164
		return in_array( $dependency, $this->getDependencies() );
0 ignored issues
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Deprecated Code introduced by
The method ParamProcessor\ParamDefinition::getDependencies() has been deprecated with message: since 1.7
Returns a list of dependencies the parameter has, in the form of
other parameter names.

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

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165
	}
166
167
	/**
168
	 * Returns the list of allowed values, or an empty array if there is no such restriction.
169
	 */
170
	public function getAllowedValues(): array {
171
		$allowedValues = [];
172
173
		if ( $this->validator !== null && method_exists( $this->validator, 'getWhitelistedValues' ) ) {
174
			if ( method_exists( $this->validator, 'setOptions' ) ) {
175
				$this->validator->setOptions( $this->options );
176
			}
177
178
			$allowedValues = $this->validator->getWhitelistedValues();
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Bug introduced by
It seems like you code against a concrete implementation and not the interface ValueValidators\ValueValidator as the method getWhitelistedValues() does only exist in the following implementations of said interface: ValueValidators\DimensionValidator, ValueValidators\ListValidator, ValueValidators\RangeValidator, ValueValidators\StringValidator, ValueValidators\TitleValidator, ValueValidators\ValueValidatorObject.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
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179
180
			if ( $allowedValues === false ) {
181
				$allowedValues = [];
182
			}
183
		}
184
185
		return $allowedValues;
186
	}
187
188
	/**
189
	 * @deprecated since 1.7
190
	 *
191
	 * @param mixed $default
192
	 * @param boolean $manipulate Should the default be manipulated or not? Since 0.4.6.
193
	 */
194
	public function setDefault( $default, $manipulate = true ) {
195
		$this->default = $default;
196
		$this->setDoManipulationOfDefault( $manipulate );
197
	}
198
199
	/**
200
	 * Returns the default value.
201
	 * @return mixed
202
	 */
203 1
	public function getDefault() {
204 1
		return $this->default;
205
	}
206
207
	/**
208
	 * Returns a message describing the parameter.
209
	 */
210 5
	public function getMessage(): string {
211 5
		return $this->message;
212
	}
213
214
	/**
215
	 * This should be a message key, ie something that can be passed
216
	 * to wfMsg. Not an actual text.
217
	 */
218
	public function setMessage( string $message ) {
219
		$this->message = $message;
220
	}
221
222
	/**
223
	 * Set if the parameter manipulations should be applied to the default value.
224
	 */
225
	public function setDoManipulationOfDefault( bool $doOrDoNotThereIsNoTry ) {
226
		$this->applyManipulationsToDefault = $doOrDoNotThereIsNoTry;
227
	}
228
229 62
	public function shouldManipulateDefault(): bool {
230 62
		return $this->applyManipulationsToDefault;
231
	}
232
233
	/**
234
	 * Adds one or more aliases for the parameter name.
235
	 *
236
	 * @param string|string[] $aliases
237
	 */
238
	public function addAliases( $aliases ) {
239
		$args = func_get_args();
240
		$this->aliases = array_merge( $this->aliases, is_array( $args[0] ) ? $args[0] : $args );
0 ignored issues
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Documentation Bug introduced by
It seems like array_merge($this->alias...0]) ? $args[0] : $args) of type array is incompatible with the declared type array<integer,string> of property $aliases.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

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241
	}
242
243
	/**
244
	 * Adds one or more dependencies. There are the names of parameters
245
	 * that need to be validated and formatted before this one.
246
	 *
247
	 * @param string|string[] $dependencies
248
	 */
249
	public function addDependencies( $dependencies ) {
250
		$args = func_get_args();
251
		$this->dependencies = array_merge( $this->dependencies, is_array( $args[0] ) ? $args[0] : $args );
0 ignored issues
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Documentation Bug introduced by
It seems like array_merge($this->depen...0]) ? $args[0] : $args) of type array is incompatible with the declared type array<integer,string> of property $dependencies.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

Loading history...
252
	}
253
254 82
	public function getName(): string {
255 82
		return $this->name;
256
	}
257
258
	/**
259
	 * Returns a message key for a message describing the parameter type.
260
	 */
261
	public function getTypeMessage(): string {
262
		$message = 'validator-type-' . $this->getType();
263
264
		if ( $this->isList() ) {
265
			$message .= '-list';
266
		}
267
268
		return $message;
269
	}
270
271
	/**
272
	 * @deprecated since 1.7
273
	 * Returns a list of dependencies the parameter has, in the form of
274
	 * other parameter names.
275
	 *
276
	 * @return string[]
277
	 */
278 14
	public function getDependencies(): array {
279 14
		return $this->dependencies;
280
	}
281
282 30
	public function isRequired(): bool {
283 30
		return is_null( $this->default );
284
	}
285
286 78
	public function isList(): bool {
287 78
		return $this->isList;
288
	}
289
290
	/**
291
	 * Returns the delimiter to use to split the raw value in case the
292
	 * parameter is a list.
293
	 */
294
	public function getDelimiter(): string {
295
		return $this->delimiter;
296
	}
297
298
	/**
299
	 * Sets the delimiter to use to split the raw value in case the
300
	 * parameter is a list.
301
	 */
302
	public function setDelimiter( string $delimiter ) {
303
		$this->delimiter = $delimiter;
304
	}
305
306
	/**
307
	 * Sets the parameter definition values contained in the provided array.
308
	 *
309
	 * @deprecated since 1.7
310
	 * TODO: provide alternative in ParamDefinitionFactory
311
	 */
312 50
	public function setArrayValues( array $param ) {
313 50
		if ( array_key_exists( 'aliases', $param ) ) {
314
			$this->addAliases( $param['aliases'] );
315
		}
316
317 50
		if ( array_key_exists( 'dependencies', $param ) ) {
318
			$this->addDependencies( $param['dependencies'] );
319
		}
320
321 50
		if ( array_key_exists( 'trim', $param ) ) {
322
			$this->trimValue = $param['trim'];
323
		}
324
325 50
		if ( array_key_exists( 'delimiter', $param ) ) {
326
			$this->delimiter = $param['delimiter'];
327
		}
328
329 50
		if ( array_key_exists( 'manipulatedefault', $param ) ) {
330
			$this->setDoManipulationOfDefault( $param['manipulatedefault'] );
331
		}
332
333 50
		$this->options = $param;
334 50
	}
335
336
	/**
337
	 * @see IParamDefinition::format
338
	 *
339
	 * @deprecated
340
	 *
341
	 * @param IParam $param
342
	 * @param IParamDefinition[] $definitions
343
	 * @param IParam[] $params
344
	 */
345 62
	public function format( IParam $param, array &$definitions, array $params ) {
346
		/**
347
		 * @var Param $param
348
		 */
349
350 62
		if ( $this->isList() && is_array( $param->getValue() ) ) {
351
			// TODO: if isList returns true, the value should be an array.
352
			// The second check here is to avoid a mysterious error.
353
			// Should have logging that writes down the value whenever this occurs.
354
355
			$values = $param->getValue();
356
357
			foreach ( $values as &$value ) {
358
				$value = $this->formatValue( $value, $param, $definitions, $params );
0 ignored issues
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Deprecated Code introduced by
The method ParamProcessor\ParamDefinition::formatValue() has been deprecated.

This method has been deprecated.

Loading history...
359
			}
360
361
			$param->setValue( $values );
362
			$this->formatList( $param, $definitions, $params );
0 ignored issues
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Deprecated Code introduced by
The method ParamProcessor\ParamDefinition::formatList() has been deprecated.

This method has been deprecated.

Loading history...
363
		}
364
		else {
365 62
			$param->setValue( $this->formatValue( $param->getValue(), $param, $definitions, $params ) );
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Deprecated Code introduced by
The method ParamProcessor\ParamDefinition::formatValue() has been deprecated.

This method has been deprecated.

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366
		}
367
368
		// deprecated, deriving classes should not add array-definitions to the list
369 62
		$definitions = self::getCleanDefinitions( $definitions );
0 ignored issues
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Deprecated Code introduced by
The method ParamProcessor\ParamDefi...::getCleanDefinitions() has been deprecated with message: since 1.7 - use ParamDefinitionFactory

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
370
371 62
		if ( array_key_exists( 'post-format', $this->options ) ) {
372
			$param->setValue( call_user_func( $this->options['post-format'], $param->getValue() ) );
373
		}
374 62
	}
375
376
	/**
377
	 * Formats the parameters values to their final result.
378
	 *
379
	 * @since 1.0
380
	 * @deprecated
381
	 *
382
	 * @param $param IParam
383
	 * @param $definitions array of IParamDefinition
384
	 * @param $params array of IParam
385
	 */
386
	protected function formatList( IParam $param, array &$definitions, array $params ) {
0 ignored issues
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Unused Code introduced by
The parameter $param is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $definitions is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $params is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
387
	}
388
389
	/**
390
	 * Formats the parameter value to it's final result.
391
	 *
392
	 * @since 1.0
393
	 * @deprecated
394
	 *
395
	 * @param mixed $value
396
	 * @param IParam $param
397
	 * @param IParamDefinition[] $definitions
398
	 * @param IParam[] $params
399
	 *
400
	 * @return mixed
401
	 */
402 42
	protected function formatValue( $value, IParam $param, array &$definitions, array $params ) {
0 ignored issues
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Unused Code introduced by
The parameter $param is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $definitions is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $params is not used and could be removed.

This check looks from parameters that have been defined for a function or method, but which are not used in the method body.

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403 42
		return $value;
404
	}
405
406
	/**
407
	 * Returns a cleaned version of the list of parameter definitions.
408
	 * This includes having converted all supported definition types to
409
	 * ParamDefinition classes and having all keys set to the names of the
410
	 * corresponding parameters.
411
	 *
412
	 * @deprecated since 1.7 - use ParamDefinitionFactory
413
	 *
414
	 * @param ParamDefinition[] $definitions
415
	 *
416
	 * @return ParamDefinition[]
417
	 * @throws Exception
418
	 */
419 70
	public static function getCleanDefinitions( array $definitions ): array {
420 70
		return ParamDefinitionFactory::singleton()->newDefinitionsFromArrays( $definitions );
0 ignored issues
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Deprecated Code introduced by
The method ParamProcessor\ParamDefinitionFactory::singleton() has been deprecated with message: since 1.0

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
421
	}
422
423
	/**
424
	 * Returns an identifier for the type of the parameter.
425
	 */
426 94
	public function getType(): string {
427 94
		return $this->type;
428
	}
429
430
	/**
431
	 * Returns a ValueParser object to parse the parameters value.
432
	 */
433 78
	public function getValueParser(): ValueParser {
434 78
		if ( $this->parser === null ) {
435 78
			$this->parser = new NullParser();
436
		}
437
438 78
		return $this->parser;
439
	}
440
441
	/**
442
	 * Returns a ValueValidator that can be used to validate the parameters value.
443
	 */
444 78
	public function getValueValidator(): ValueValidator {
445 78
		if ( $this->validator === null ) {
446 2
			$this->validator = new NullValidator();
447
		}
448
449 78
		return $this->validator;
450
	}
451
452
	public function setValueParser( ValueParser $parser ) {
453
		$this->parser = $parser;
454
	}
455
456 50
	public function setValueValidator( ValueValidator $validator ) {
457 50
		$this->validator = $validator;
458 50
	}
459
460
	/**
461
	 * Sets a validation function that will be run before the ValueValidator.
462
	 *
463
	 * This can be used instead of a ValueValidator where validation is very
464
	 * trivial, ie checking if something is a boolean can be done with is_bool.
465
	 */
466 36
	public function setValidationCallback( ?callable $validationFunction ) {
467 36
		$this->validationFunction = $validationFunction;
468 36
	}
469
470
	/**
471
	 * @see setValidationCallback
472
	 */
473 78
	public function getValidationCallback(): ?callable {
474 78
		return $this->validationFunction;
475
	}
476
477 78
	public function getOptions(): array {
478 78
		return $this->options;
479
	}
480
481
}
482