Complex classes like Schema often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Schema, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class Schema implements \JsonSerializable { |
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| 14 | /** |
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| 15 | * Trigger a notice when extraneous properties are encountered during validation. |
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| 16 | */ |
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| 17 | const VALIDATE_EXTRA_PROPERTY_NOTICE = 0x1; |
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| 18 | |||
| 19 | /** |
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| 20 | * Throw a ValidationException when extraneous properties are encountered during validation. |
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| 21 | */ |
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| 22 | const VALIDATE_EXTRA_PROPERTY_EXCEPTION = 0x2; |
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| 23 | |||
| 24 | /** |
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| 25 | * @var array All the known types. |
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| 26 | * |
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| 27 | * If this is ever given some sort of public access then remove the static. |
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| 28 | */ |
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| 29 | private static $types = [ |
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| 30 | 'array' => ['a'], |
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| 31 | 'object' => ['o'], |
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| 32 | 'integer' => ['i', 'int'], |
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| 33 | 'string' => ['s', 'str'], |
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| 34 | 'number' => ['f', 'float'], |
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| 35 | 'boolean' => ['b', 'bool'], |
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| 36 | 'timestamp' => ['ts'], |
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| 37 | 'datetime' => ['dt'], |
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| 38 | 'null' => ['n'] |
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| 39 | ]; |
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| 40 | |||
| 41 | private $schema = []; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var int A bitwise combination of the various **Schema::FLAG_*** constants. |
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| 45 | */ |
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| 46 | private $flags = 0; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var array An array of callbacks that will custom validate the schema. |
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| 50 | */ |
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| 51 | private $validators = []; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var string|Validation The name of the class or an instance that will be cloned. |
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| 55 | */ |
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| 56 | private $validationClass = Validation::class; |
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| 57 | |||
| 58 | |||
| 59 | /// Methods /// |
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| 60 | |||
| 61 | /** |
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| 62 | * Initialize an instance of a new {@link Schema} class. |
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| 63 | * |
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| 64 | * @param array $schema The array schema to validate against. |
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| 65 | */ |
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| 66 | 149 | public function __construct($schema = []) { |
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| 69 | |||
| 70 | /** |
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| 71 | * Grab the schema's current description. |
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| 72 | * |
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| 73 | * @return string |
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| 74 | */ |
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| 75 | 1 | public function getDescription() { |
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| 78 | |||
| 79 | /** |
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| 80 | * Set the description for the schema. |
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| 81 | * |
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| 82 | * @param string $description The new description. |
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| 83 | * @throws \InvalidArgumentException Throws an exception when the provided description is not a string. |
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| 84 | * @return Schema |
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| 85 | */ |
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| 86 | 2 | public function setDescription($description) { |
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| 87 | 2 | if (is_string($description)) { |
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| 88 | 1 | $this->schema['description'] = $description; |
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| 89 | 1 | } else { |
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| 90 | 1 | throw new \InvalidArgumentException("The description is not a valid string.", 500); |
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| 91 | } |
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| 92 | |||
| 93 | 1 | return $this; |
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| 94 | } |
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| 95 | |||
| 96 | /** |
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| 97 | * Return the validation flags. |
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| 98 | * |
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| 99 | * @return int Returns a bitwise combination of flags. |
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| 100 | */ |
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| 101 | 1 | public function getFlags() { |
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| 104 | |||
| 105 | /** |
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| 106 | * Set the validation flags. |
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| 107 | * |
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| 108 | * @param int $flags One or more of the **Schema::FLAG_*** constants. |
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| 109 | * @return Schema Returns the current instance for fluent calls. |
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| 110 | */ |
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| 111 | 8 | public function setFlags($flags) { |
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| 119 | |||
| 120 | /** |
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| 121 | * Whether or not the schema has a flag (or combination of flags). |
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| 122 | * |
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| 123 | * @param int $flag One or more of the **Schema::VALIDATE_*** constants. |
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| 124 | * @return bool Returns **true** if all of the flags are set or **false** otherwise. |
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| 125 | */ |
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| 126 | 8 | public function hasFlag($flag) { |
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| 129 | |||
| 130 | /** |
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| 131 | * Set a flag. |
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| 132 | * |
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| 133 | * @param int $flag One or more of the **Schema::VALIDATE_*** constants. |
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| 134 | * @param bool $value Either true or false. |
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| 135 | * @return $this |
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| 136 | */ |
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| 137 | 1 | public function setFlag($flag, $value) { |
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| 145 | |||
| 146 | /** |
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| 147 | * Merge a schema with this one. |
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| 148 | * |
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| 149 | * @param Schema $schema A scheme instance. Its parameters will be merged into the current instance. |
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| 150 | * @return $this |
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| 151 | */ |
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| 152 | 3 | public function merge(Schema $schema) { |
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| 156 | |||
| 157 | /** |
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| 158 | * Add another schema to this one. |
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| 159 | * |
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| 160 | * Adding schemas together is analogous to array addition. When you add a schema it will only add missing information. |
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| 161 | * |
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| 162 | * @param Schema $schema The schema to add. |
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| 163 | * @param bool $addProperties Whether to add properties that don't exist in this schema. |
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| 164 | * @return $this |
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| 165 | */ |
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| 166 | 3 | public function add(Schema $schema, $addProperties = false) { |
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| 170 | |||
| 171 | /** |
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| 172 | * The internal implementation of schema merging. |
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| 173 | * |
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| 174 | * @param array &$target The target of the merge. |
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| 175 | * @param array $source The source of the merge. |
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| 176 | * @param bool $overwrite Whether or not to replace values. |
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| 177 | * @param bool $addProperties Whether or not to add object properties to the target. |
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| 178 | * @return array |
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| 179 | */ |
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| 180 | 6 | private function mergeInternal(array &$target, array $source, $overwrite = true, $addProperties = true) { |
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| 232 | |||
| 233 | // public function overlay(Schema $schema ) |
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| 234 | |||
| 235 | /** |
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| 236 | * Returns the internal schema array. |
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| 237 | * |
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| 238 | * @return array |
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| 239 | * @see Schema::jsonSerialize() |
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| 240 | */ |
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| 241 | 15 | public function getSchemaArray() { |
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| 244 | |||
| 245 | /** |
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| 246 | * Parse a short schema and return the associated schema. |
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| 247 | * |
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| 248 | * @param array $arr The schema array. |
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| 249 | * @param mixed ...$args Constructor arguments for the schema instance. |
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| 250 | * @return static Returns a new schema. |
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| 251 | */ |
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| 252 | 144 | public static function parse(array $arr, ...$args) { |
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| 253 | 144 | $schema = new static([], ...$args); |
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| 254 | 144 | $schema->schema = $schema->parseInternal($arr); |
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| 255 | 144 | return $schema; |
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| 256 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * Parse a schema in short form into a full schema array. |
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| 260 | * |
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| 261 | * @param array $arr The array to parse into a schema. |
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| 262 | * @return array The full schema array. |
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| 263 | * @throws \InvalidArgumentException Throws an exception when an item in the schema is invalid. |
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| 264 | */ |
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| 265 | 144 | protected function parseInternal(array $arr) { |
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| 266 | 144 | if (empty($arr)) { |
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| 267 | // An empty schema validates to anything. |
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| 268 | 7 | return []; |
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| 269 | 138 | } elseif (isset($arr['type'])) { |
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| 270 | // This is a long form schema and can be parsed as the root. |
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| 271 | return $this->parseNode($arr); |
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| 272 | } else { |
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| 273 | // Check for a root schema. |
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| 274 | 138 | $value = reset($arr); |
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| 275 | 138 | $key = key($arr); |
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| 276 | 138 | if (is_int($key)) { |
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| 277 | 84 | $key = $value; |
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| 278 | 84 | $value = null; |
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| 279 | 84 | } |
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| 280 | 138 | list ($name, $param) = $this->parseShortParam($key, $value); |
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| 281 | 138 | if (empty($name)) { |
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| 282 | 52 | return $this->parseNode($param, $value); |
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| 283 | } |
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| 284 | } |
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| 285 | |||
| 286 | // If we are here then this is n object schema. |
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| 287 | 88 | list($properties, $required) = $this->parseProperties($arr); |
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| 288 | |||
| 289 | $result = [ |
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| 290 | 88 | 'type' => 'object', |
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| 291 | 88 | 'properties' => $properties, |
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| 292 | 'required' => $required |
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| 293 | 88 | ]; |
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| 294 | |||
| 295 | 88 | return array_filter($result); |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Parse a schema node. |
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| 300 | * |
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| 301 | * @param array $node The node to parse. |
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| 302 | * @param mixed $value Additional information from the node. |
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| 303 | * @return array Returns a JSON schema compatible node. |
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| 304 | */ |
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| 305 | 138 | private function parseNode($node, $value = null) { |
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| 306 | 138 | if (is_array($value)) { |
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| 307 | // The value describes a bit more about the schema. |
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| 308 | 53 | switch ($node['type']) { |
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| 309 | 53 | case 'array': |
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| 310 | 7 | if (isset($value['items'])) { |
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| 311 | // The value includes array schema information. |
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| 312 | 1 | $node = array_replace($node, $value); |
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| 313 | 1 | } else { |
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| 314 | 6 | $node['items'] = $this->parseInternal($value); |
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| 315 | } |
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| 316 | 7 | break; |
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| 317 | 46 | case 'object': |
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| 318 | // The value is a schema of the object. |
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| 319 | 10 | if (isset($value['properties'])) { |
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| 320 | list($node['properties']) = $this->parseProperties($value['properties']); |
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| 321 | } else { |
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| 322 | 10 | list($node['properties'], $required) = $this->parseProperties($value); |
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| 323 | 10 | if (!empty($required)) { |
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| 324 | 10 | $node['required'] = $required; |
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| 325 | 10 | } |
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| 326 | } |
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| 327 | 10 | break; |
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| 328 | 36 | default: |
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| 329 | 36 | $node = array_replace($node, $value); |
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| 330 | 36 | break; |
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| 331 | 53 | } |
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| 332 | 138 | } elseif (is_string($value)) { |
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| 333 | 80 | if ($node['type'] === 'array' && $arrType = $this->getType($value)) { |
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| 334 | 2 | $node['items'] = ['type' => $arrType]; |
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| 335 | 80 | } elseif (!empty($value)) { |
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| 336 | 23 | $node['description'] = $value; |
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| 337 | 23 | } |
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| 338 | 103 | } elseif ($value === null) { |
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| 339 | // Parse child elements. |
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| 340 | 24 | if ($node['type'] === 'array' && isset($node['items'])) { |
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| 341 | // The value includes array schema information. |
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| 342 | $node['items'] = $this->parseInternal($node['items']); |
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| 343 | 24 | } elseif ($node['type'] === 'object' && isset($node['properties'])) { |
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| 344 | list($node['properties']) = $this->parseProperties($node['properties']); |
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| 345 | |||
| 346 | } |
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| 347 | 24 | } |
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| 348 | |||
| 349 | 138 | if (is_array($node) && $node['type'] === null) { |
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| 350 | 3 | unset($node['type']); |
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| 351 | 3 | } |
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| 352 | |||
| 353 | 138 | return $node; |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Parse the schema for an object's properties. |
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| 358 | * |
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| 359 | * @param array $arr An object property schema. |
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| 360 | * @return array Returns a schema array suitable to be placed in the **properties** key of a schema. |
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| 361 | */ |
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| 362 | 88 | private function parseProperties(array $arr) { |
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| 363 | 88 | $properties = []; |
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| 364 | 88 | $requiredProperties = []; |
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| 365 | 88 | foreach ($arr as $key => $value) { |
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| 366 | // Fix a schema specified as just a value. |
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| 367 | 88 | if (is_int($key)) { |
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| 368 | 64 | if (is_string($value)) { |
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| 369 | 64 | $key = $value; |
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| 370 | 64 | $value = ''; |
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| 371 | 64 | } else { |
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| 372 | throw new \InvalidArgumentException("Schema at position $key is not a valid parameter.", 500); |
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| 373 | } |
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| 374 | 64 | } |
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| 375 | |||
| 376 | // The parameter is defined in the key. |
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| 377 | 88 | list($name, $param, $required) = $this->parseShortParam($key, $value); |
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| 378 | |||
| 379 | 88 | $node = $this->parseNode($param, $value); |
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| 380 | |||
| 381 | 88 | $properties[$name] = $node; |
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| 382 | 88 | if ($required) { |
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| 383 | 46 | $requiredProperties[] = $name; |
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| 384 | 46 | } |
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| 385 | 88 | } |
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| 386 | 88 | return array($properties, $requiredProperties); |
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| 387 | } |
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| 388 | |||
| 389 | /** |
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| 390 | * Parse a short parameter string into a full array parameter. |
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| 391 | * |
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| 392 | * @param string $key The short parameter string to parse. |
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| 393 | * @param array $value An array of other information that might help resolve ambiguity. |
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| 394 | * @return array Returns an array in the form `[string name, array param, bool required]`. |
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| 395 | * @throws \InvalidArgumentException Throws an exception if the short param is not in the correct format. |
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| 396 | */ |
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| 397 | 138 | public function parseShortParam($key, $value = []) { |
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| 398 | // Is the parameter optional? |
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| 399 | 138 | if (substr($key, -1) === '?') { |
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| 400 | 62 | $required = false; |
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| 401 | 62 | $key = substr($key, 0, -1); |
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| 402 | 62 | } else { |
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| 403 | 96 | $required = true; |
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| 404 | } |
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| 405 | |||
| 406 | // Check for a type. |
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| 407 | 138 | $parts = explode(':', $key); |
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| 408 | 138 | $name = $parts[0]; |
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| 409 | 138 | $allowNull = false; |
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| 410 | 138 | if (!empty($parts[1])) { |
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| 411 | 137 | $types = explode('|', $parts[1]); |
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| 412 | 137 | foreach ($types as $alias) { |
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| 413 | 137 | $found = $this->getType($alias); |
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| 414 | 137 | if ($found === null) { |
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| 415 | throw new \InvalidArgumentException("Unknown type '$alias'", 500); |
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| 416 | 137 | } elseif ($found === 'null') { |
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| 417 | 9 | $allowNull = true; |
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| 418 | 9 | } else { |
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| 419 | 137 | $type = $found; |
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| 420 | } |
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| 421 | 137 | } |
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| 422 | 137 | } else { |
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| 423 | 4 | $type = null; |
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| 424 | } |
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| 425 | |||
| 426 | 138 | if ($value instanceof Schema) { |
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| 427 | 2 | if ($type === 'array') { |
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| 428 | 1 | $param = ['type' => $type, 'items' => $value]; |
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| 429 | 1 | } else { |
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| 430 | 1 | $param = $value; |
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| 431 | } |
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| 432 | 138 | } elseif (isset($value['type'])) { |
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| 433 | $param = $value; |
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| 434 | |||
| 435 | if (!empty($type) && $type !== $param['type']) { |
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| 436 | throw new \InvalidArgumentException("Type mismatch between $type and {$param['type']} for field $name.", 500); |
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| 437 | } |
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| 438 | } else { |
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| 439 | 138 | if (empty($type) && !empty($parts[1])) { |
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| 440 | throw new \InvalidArgumentException("Invalid type {$parts[1]} for field $name.", 500); |
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| 441 | } |
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| 442 | 138 | $param = ['type' => $type]; |
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| 443 | |||
| 444 | // Parsed required strings have a minimum length of 1. |
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| 445 | 138 | if ($type === 'string' && !empty($name) && $required && (!isset($value['default']) || $value['default'] !== '')) { |
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| 446 | 29 | $param['minLength'] = 1; |
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| 447 | 29 | } |
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| 448 | } |
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| 449 | 138 | if ($allowNull) { |
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| 450 | 9 | $param['allowNull'] = true; |
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| 451 | 9 | } |
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| 452 | |||
| 453 | 138 | return [$name, $param, $required]; |
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| 454 | } |
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| 455 | |||
| 456 | /** |
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| 457 | * Add a custom validator to to validate the schema. |
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| 458 | * |
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| 459 | * @param string $fieldname The name of the field to validate, if any. |
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| 460 | * |
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| 461 | * If you are adding a validator to a deeply nested field then separate the path with dots. |
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| 462 | * @param callable $callback The callback to validate with. |
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| 463 | * @return Schema Returns `$this` for fluent calls. |
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| 464 | */ |
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| 465 | 2 | public function addValidator($fieldname, callable $callback) { |
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| 466 | 2 | $this->validators[$fieldname][] = $callback; |
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| 467 | 2 | return $this; |
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| 468 | } |
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| 469 | |||
| 470 | /** |
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| 471 | * Require one of a given set of fields in the schema. |
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| 472 | * |
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| 473 | * @param array $required The field names to require. |
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| 474 | * @param string $fieldname The name of the field to attach to. |
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| 475 | * @param int $count The count of required items. |
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| 476 | * @return Schema Returns `$this` for fluent calls. |
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| 477 | */ |
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| 478 | 1 | public function requireOneOf(array $required, $fieldname = '', $count = 1) { |
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| 479 | 1 | $result = $this->addValidator( |
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| 480 | 1 | $fieldname, |
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| 481 | function ($data, ValidationField $field) use ($required, $count) { |
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| 482 | 1 | $hasCount = 0; |
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| 483 | 1 | $flattened = []; |
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| 484 | |||
| 485 | 1 | foreach ($required as $name) { |
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| 486 | 1 | $flattened = array_merge($flattened, (array)$name); |
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| 487 | |||
| 488 | 1 | if (is_array($name)) { |
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| 489 | // This is an array of required names. They all must match. |
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| 490 | 1 | $hasCountInner = 0; |
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| 491 | 1 | foreach ($name as $nameInner) { |
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| 492 | 1 | if (isset($data[$nameInner]) && $data[$nameInner]) { |
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| 493 | 1 | $hasCountInner++; |
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| 494 | 1 | } else { |
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| 495 | 1 | break; |
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| 496 | } |
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| 497 | 1 | } |
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| 498 | 1 | if ($hasCountInner >= count($name)) { |
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| 499 | 1 | $hasCount++; |
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| 500 | 1 | } |
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| 501 | 1 | } elseif (isset($data[$name]) && $data[$name]) { |
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| 502 | 1 | $hasCount++; |
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| 503 | 1 | } |
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| 504 | |||
| 505 | 1 | if ($hasCount >= $count) { |
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| 506 | 1 | return true; |
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| 507 | } |
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| 508 | 1 | } |
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| 509 | |||
| 510 | 1 | if ($count === 1) { |
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| 511 | 1 | $message = 'One of {required} are required.'; |
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| 512 | 1 | } else { |
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| 513 | $message = '{count} of {required} are required.'; |
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| 514 | } |
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| 515 | |||
| 516 | 1 | $field->addError('missingField', [ |
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| 517 | 1 | 'messageCode' => $message, |
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| 518 | 1 | 'required' => $required, |
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| 519 | 'count' => $count |
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| 520 | 1 | ]); |
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| 521 | 1 | return false; |
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| 522 | } |
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| 523 | 1 | ); |
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| 524 | |||
| 525 | 1 | return $result; |
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| 526 | } |
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| 527 | |||
| 528 | /** |
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| 529 | * Validate data against the schema. |
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| 530 | * |
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| 531 | * @param mixed $data The data to validate. |
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| 532 | * @param bool $sparse Whether or not this is a sparse validation. |
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| 533 | * @return mixed Returns a cleaned version of the data. |
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| 534 | * @throws ValidationException Throws an exception when the data does not validate against the schema. |
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| 535 | */ |
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| 536 | 117 | public function validate($data, $sparse = false) { |
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| 537 | 117 | $field = new ValidationField($this->createValidation(), $this->schema, ''); |
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| 538 | |||
| 539 | 117 | $clean = $this->validateField($data, $field, $sparse); |
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| 540 | |||
| 541 | 115 | if (Invalid::isInvalid($clean) && $field->isValid()) { |
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| 542 | // This really shouldn't happen, but we want to protect against seeing the invalid object. |
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| 543 | $field->addError('invalid', ['messageCode' => '{field} is invalid.', 'status' => 422]); |
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| 544 | } |
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| 545 | |||
| 546 | 115 | if (!$field->getValidation()->isValid()) { |
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| 547 | 63 | throw new ValidationException($field->getValidation()); |
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| 548 | } |
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| 549 | |||
| 550 | 71 | return $clean; |
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| 551 | } |
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| 552 | |||
| 553 | /** |
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| 554 | * Validate data against the schema and return the result. |
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| 555 | * |
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| 556 | * @param mixed $data The data to validate. |
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| 557 | * @param bool $sparse Whether or not to do a sparse validation. |
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| 558 | * @return bool Returns true if the data is valid. False otherwise. |
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| 559 | */ |
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| 560 | 33 | public function isValid($data, $sparse = false) { |
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| 561 | try { |
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| 562 | 33 | $this->validate($data, $sparse); |
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| 563 | 23 | return true; |
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| 564 | 24 | } catch (ValidationException $ex) { |
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| 565 | 24 | return false; |
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| 566 | } |
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| 567 | } |
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| 568 | |||
| 569 | /** |
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| 570 | * Validate a field. |
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| 571 | * |
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| 572 | * @param mixed $value The value to validate. |
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| 573 | * @param ValidationField $field A validation object to add errors to. |
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| 574 | * @param bool $sparse Whether or not this is a sparse validation. |
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| 575 | * @return mixed|Invalid Returns a clean version of the value with all extra fields stripped out or invalid if the value |
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| 576 | * is completely invalid. |
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| 577 | */ |
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| 578 | 117 | protected function validateField($value, ValidationField $field, $sparse = false) { |
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| 579 | 117 | $result = $value; |
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| 580 | 117 | if ($field->getField() instanceof Schema) { |
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| 581 | try { |
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| 582 | 1 | $result = $field->getField()->validate($value, $sparse); |
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| 583 | 1 | } catch (ValidationException $ex) { |
|
| 584 | // The validation failed, so merge the validations together. |
||
| 585 | 1 | $field->getValidation()->merge($ex->getValidation(), $field->getName()); |
|
| 586 | } |
||
| 587 | 117 | } elseif ($value === null && $field->val('allowNull', false)) { |
|
| 588 | 9 | $result = $value; |
|
| 589 | 9 | } else { |
|
| 590 | // Validate the field's type. |
||
| 591 | 117 | $type = $field->getType(); |
|
| 592 | switch ($type) { |
||
| 593 | 117 | case 'boolean': |
|
| 594 | 21 | $result = $this->validateBoolean($value, $field); |
|
| 595 | 21 | break; |
|
| 596 | 104 | case 'integer': |
|
| 597 | 23 | $result = $this->validateInteger($value, $field); |
|
| 598 | 23 | break; |
|
| 599 | 102 | case 'number': |
|
| 600 | 9 | $result = $this->validateNumber($value, $field); |
|
| 601 | 9 | break; |
|
| 602 | 101 | case 'string': |
|
| 603 | 52 | $result = $this->validateString($value, $field); |
|
| 604 | 52 | break; |
|
| 605 | 84 | case 'timestamp': |
|
| 606 | 8 | $result = $this->validateTimestamp($value, $field); |
|
| 607 | 8 | break; |
|
| 608 | 83 | case 'datetime': |
|
| 609 | 9 | $result = $this->validateDatetime($value, $field); |
|
| 610 | 9 | break; |
|
| 611 | 80 | case 'array': |
|
| 612 | 13 | $result = $this->validateArray($value, $field, $sparse); |
|
| 613 | 13 | break; |
|
| 614 | 78 | case 'object': |
|
| 615 | 77 | $result = $this->validateObject($value, $field, $sparse); |
|
| 616 | 75 | break; |
|
| 617 | 2 | case null: |
|
| 618 | // No type was specified so we are valid. |
||
| 619 | 2 | $result = $value; |
|
| 620 | 2 | break; |
|
| 621 | default: |
||
| 622 | throw new \InvalidArgumentException("Unrecognized type $type.", 500); |
||
| 623 | } |
||
| 624 | 117 | if (Invalid::isValid($result)) { |
|
| 625 | 115 | $result = $this->validateEnum($result, $field); |
|
| 626 | 115 | } |
|
| 627 | } |
||
| 628 | |||
| 629 | // Validate a custom field validator. |
||
| 630 | 117 | if (Invalid::isValid($result)) { |
|
| 631 | 115 | $this->callValidators($result, $field); |
|
| 632 | 115 | } |
|
| 633 | |||
| 634 | 117 | return $result; |
|
| 635 | } |
||
| 636 | |||
| 637 | /** |
||
| 638 | * Validate an array. |
||
| 639 | * |
||
| 640 | * @param mixed $value The value to validate. |
||
| 641 | * @param ValidationField $field The validation results to add. |
||
| 642 | * @param bool $sparse Whether or not this is a sparse validation. |
||
| 643 | * @return array|Invalid Returns an array or invalid if validation fails. |
||
| 644 | */ |
||
| 645 | 13 | protected function validateArray($value, ValidationField $field, $sparse = false) { |
|
| 646 | 13 | if ((!is_array($value) || (count($value) > 0 && !array_key_exists(0, $value))) && !$value instanceof \Traversable) { |
|
| 647 | 7 | $field->addTypeError('array'); |
|
| 648 | 7 | return Invalid::value(); |
|
| 649 | 7 | } elseif ($field->val('items') !== null) { |
|
| 650 | 5 | $result = []; |
|
| 651 | |||
| 652 | // Validate each of the types. |
||
| 653 | 5 | $itemValidation = new ValidationField( |
|
| 654 | 5 | $field->getValidation(), |
|
| 655 | 5 | $field->val('items'), |
|
| 656 | '' |
||
| 657 | 5 | ); |
|
| 658 | |||
| 659 | 5 | $count = 0; |
|
| 660 | 5 | foreach ($value as $i => $item) { |
|
| 661 | 5 | $itemValidation->setName($field->getName()."[{$i}]"); |
|
| 662 | 5 | $validItem = $this->validateField($item, $itemValidation, $sparse); |
|
| 663 | 5 | if (Invalid::isValid($validItem)) { |
|
| 664 | 5 | $result[] = $validItem; |
|
| 665 | 5 | } |
|
| 666 | 5 | $count++; |
|
| 667 | 5 | } |
|
| 668 | |||
| 669 | 5 | return empty($result) && $count > 0 ? Invalid::value() : $result; |
|
| 670 | } else { |
||
| 671 | // Cast the items into a proper numeric array. |
||
| 672 | 2 | $result = is_array($value) ? array_values($value) : iterator_to_array($value); |
|
| 673 | 2 | return $result; |
|
| 674 | } |
||
| 675 | } |
||
| 676 | |||
| 677 | /** |
||
| 678 | * Validate a boolean value. |
||
| 679 | * |
||
| 680 | * @param mixed $value The value to validate. |
||
| 681 | * @param ValidationField $field The validation results to add. |
||
| 682 | * @return bool|Invalid Returns the cleaned value or invalid if validation fails. |
||
| 683 | */ |
||
| 684 | 21 | protected function validateBoolean($value, ValidationField $field) { |
|
| 685 | 21 | $value = $value === null ? $value : filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE); |
|
| 686 | 21 | if ($value === null) { |
|
| 687 | 5 | $field->addTypeError('boolean'); |
|
| 688 | 5 | return Invalid::value(); |
|
| 689 | } |
||
| 690 | 17 | return $value; |
|
| 691 | } |
||
| 692 | |||
| 693 | /** |
||
| 694 | * Validate a date time. |
||
| 695 | * |
||
| 696 | * @param mixed $value The value to validate. |
||
| 697 | * @param ValidationField $field The validation results to add. |
||
| 698 | * @return \DateTimeInterface|Invalid Returns the cleaned value or **null** if it isn't valid. |
||
| 699 | */ |
||
| 700 | 13 | protected function validateDatetime($value, ValidationField $field) { |
|
| 701 | 13 | if ($value instanceof \DateTimeInterface) { |
|
| 702 | // do nothing, we're good |
||
| 703 | 13 | } elseif (is_string($value) && $value !== '') { |
|
| 704 | try { |
||
| 705 | 7 | $dt = new \DateTimeImmutable($value); |
|
| 706 | 5 | if ($dt) { |
|
| 707 | 5 | $value = $dt; |
|
| 708 | 5 | } else { |
|
| 709 | $value = null; |
||
| 710 | } |
||
| 711 | 7 | } catch (\Exception $ex) { |
|
| 712 | 2 | $value = Invalid::value(); |
|
| 713 | } |
||
| 714 | 11 | } elseif (is_int($value) && $value > 0) { |
|
| 715 | 1 | $value = new \DateTimeImmutable('@'.(string)round($value)); |
|
| 716 | 1 | } else { |
|
| 717 | 3 | $value = Invalid::value(); |
|
| 718 | } |
||
| 719 | |||
| 720 | 13 | if (Invalid::isInvalid($value)) { |
|
| 721 | 5 | $field->addTypeError('datetime'); |
|
| 722 | 5 | } |
|
| 723 | 13 | return $value; |
|
| 724 | } |
||
| 725 | |||
| 726 | /** |
||
| 727 | * Validate a float. |
||
| 728 | * |
||
| 729 | * @param mixed $value The value to validate. |
||
| 730 | * @param ValidationField $field The validation results to add. |
||
| 731 | * @return float|Invalid Returns a number or **null** if validation fails. |
||
| 732 | */ |
||
| 733 | 9 | protected function validateNumber($value, ValidationField $field) { |
|
| 734 | 9 | $result = filter_var($value, FILTER_VALIDATE_FLOAT); |
|
| 735 | 9 | if ($result === false) { |
|
| 736 | 5 | $field->addTypeError('number'); |
|
| 737 | 5 | return Invalid::value(); |
|
| 738 | } |
||
| 739 | 4 | return $result; |
|
| 740 | } |
||
| 741 | |||
| 742 | /** |
||
| 743 | * Validate and integer. |
||
| 744 | * |
||
| 745 | * @param mixed $value The value to validate. |
||
| 746 | * @param ValidationField $field The validation results to add. |
||
| 747 | * @return int|Invalid Returns the cleaned value or **null** if validation fails. |
||
| 748 | */ |
||
| 749 | 23 | protected function validateInteger($value, ValidationField $field) { |
|
| 750 | 23 | $result = filter_var($value, FILTER_VALIDATE_INT); |
|
| 751 | |||
| 752 | 23 | if ($result === false) { |
|
| 753 | 9 | $field->addTypeError('integer'); |
|
| 754 | 9 | return Invalid::value(); |
|
| 755 | } |
||
| 756 | 17 | return $result; |
|
| 757 | } |
||
| 758 | |||
| 759 | /** |
||
| 760 | * Validate an object. |
||
| 761 | * |
||
| 762 | * @param mixed $value The value to validate. |
||
| 763 | * @param ValidationField $field The validation results to add. |
||
| 764 | * @param bool $sparse Whether or not this is a sparse validation. |
||
| 765 | * @return object|Invalid Returns a clean object or **null** if validation fails. |
||
| 766 | */ |
||
| 767 | 77 | protected function validateObject($value, ValidationField $field, $sparse = false) { |
|
| 768 | 77 | if (!$this->isArray($value) || isset($value[0])) { |
|
| 769 | 7 | $field->addTypeError('object'); |
|
| 770 | 7 | return Invalid::value(); |
|
| 771 | 77 | } elseif (is_array($field->val('properties'))) { |
|
| 772 | // Validate the data against the internal schema. |
||
| 773 | 76 | $value = $this->validateProperties($value, $field, $sparse); |
|
| 774 | 75 | } elseif (!is_array($value)) { |
|
| 775 | $value = $this->toArray($value); |
||
| 776 | } |
||
| 777 | 75 | return $value; |
|
| 778 | } |
||
| 779 | |||
| 780 | /** |
||
| 781 | * Validate data against the schema and return the result. |
||
| 782 | * |
||
| 783 | * @param array|\ArrayAccess $data The data to validate. |
||
| 784 | * @param ValidationField $field This argument will be filled with the validation result. |
||
| 785 | * @param bool $sparse Whether or not this is a sparse validation. |
||
| 786 | * @return array|Invalid Returns a clean array with only the appropriate properties and the data coerced to proper types. |
||
| 787 | * or invalid if there are no valid properties. |
||
| 788 | */ |
||
| 789 | 76 | protected function validateProperties($data, ValidationField $field, $sparse = false) { |
|
| 790 | 76 | $properties = $field->val('properties', []); |
|
| 791 | 76 | $required = array_flip($field->val('required', [])); |
|
| 792 | |||
| 793 | 76 | if (is_array($data)) { |
|
| 794 | 75 | $keys = array_keys($data); |
|
| 795 | 75 | } else { |
|
| 796 | 1 | $keys = array_keys(iterator_to_array($data)); |
|
| 797 | } |
||
| 798 | 76 | $keys = array_combine(array_map('strtolower', $keys), $keys); |
|
| 799 | |||
| 800 | 76 | $propertyField = new ValidationField($field->getValidation(), [], null); |
|
| 801 | |||
| 802 | // Loop through the schema fields and validate each one. |
||
| 803 | 76 | $clean = []; |
|
| 804 | 76 | foreach ($properties as $propertyName => $property) { |
|
| 805 | $propertyField |
||
| 806 | 76 | ->setField($property) |
|
| 807 | 76 | ->setName(ltrim($field->getName().".$propertyName", '.')); |
|
| 808 | |||
| 809 | 76 | $lName = strtolower($propertyName); |
|
| 810 | 76 | $isRequired = isset($required[$propertyName]); |
|
| 811 | |||
| 812 | // First check for required fields. |
||
| 813 | 76 | if (!array_key_exists($lName, $keys)) { |
|
| 814 | 20 | if ($sparse) { |
|
| 815 | // Sparse validation can leave required fields out. |
||
| 816 | 20 | } elseif ($propertyField->hasVal('default')) { |
|
| 817 | 2 | $clean[$propertyName] = $propertyField->val('default'); |
|
| 818 | 20 | } elseif ($isRequired) { |
|
| 819 | 6 | $propertyField->addError('missingField', ['messageCode' => '{field} is required.']); |
|
| 820 | 6 | } |
|
| 821 | 20 | } else { |
|
| 822 | 74 | $clean[$propertyName] = $this->validateField($data[$keys[$lName]], $propertyField, $sparse); |
|
| 823 | } |
||
| 824 | |||
| 825 | 76 | unset($keys[$lName]); |
|
| 826 | 76 | } |
|
| 827 | |||
| 828 | // Look for extraneous properties. |
||
| 829 | 76 | if (!empty($keys)) { |
|
| 830 | 7 | if ($this->hasFlag(Schema::VALIDATE_EXTRA_PROPERTY_NOTICE)) { |
|
| 831 | 2 | $msg = sprintf("%s has unexpected field(s): %s.", $field->getName() ?: 'value', implode(', ', $keys)); |
|
| 832 | 2 | trigger_error($msg, E_USER_NOTICE); |
|
| 833 | } |
||
| 834 | |||
| 835 | 5 | if ($this->hasFlag(Schema::VALIDATE_EXTRA_PROPERTY_EXCEPTION)) { |
|
| 836 | 2 | $field->addError('invalid', [ |
|
| 837 | 2 | 'messageCode' => '{field} has {extra,plural,an unexpected field,unexpected fields}: {extra}.', |
|
| 838 | 2 | 'extra' => array_values($keys), |
|
| 839 | 'status' => 422 |
||
| 840 | 2 | ]); |
|
| 841 | 2 | } |
|
| 842 | 5 | } |
|
| 843 | |||
| 844 | 74 | return $clean; |
|
| 845 | } |
||
| 846 | |||
| 847 | /** |
||
| 848 | * Validate a string. |
||
| 849 | * |
||
| 850 | * @param mixed $value The value to validate. |
||
| 851 | * @param ValidationField $field The validation results to add. |
||
| 852 | * @return string|Invalid Returns the valid string or **null** if validation fails. |
||
| 853 | */ |
||
| 854 | 52 | protected function validateString($value, ValidationField $field) { |
|
| 855 | 52 | if (is_string($value) || is_numeric($value)) { |
|
| 856 | 49 | $value = $result = (string)$value; |
|
| 857 | 49 | } else { |
|
| 858 | 6 | $field->addTypeError('string'); |
|
| 859 | 6 | return Invalid::value(); |
|
| 860 | } |
||
| 861 | |||
| 862 | 49 | $errorCount = $field->getErrorCount(); |
|
| 863 | 49 | if (($minLength = $field->val('minLength', 0)) > 0 && mb_strlen($value) < $minLength) { |
|
| 864 | 4 | if (!empty($field->getName()) && $minLength === 1) { |
|
| 865 | 2 | $field->addError('missingField', ['messageCode' => '{field} is required.', 'status' => 422]); |
|
| 866 | 2 | } else { |
|
| 867 | 2 | $field->addError( |
|
| 868 | 2 | 'minLength', |
|
| 869 | [ |
||
| 870 | 2 | 'messageCode' => '{field} should be at least {minLength} {minLength,plural,character} long.', |
|
| 871 | 2 | 'minLength' => $minLength, |
|
| 872 | 'status' => 422 |
||
| 873 | 2 | ] |
|
| 874 | 2 | ); |
|
| 875 | } |
||
| 876 | 4 | } |
|
| 877 | 49 | if (($maxLength = $field->val('maxLength', 0)) > 0 && mb_strlen($value) > $maxLength) { |
|
| 878 | 1 | $field->addError( |
|
| 879 | 1 | 'maxLength', |
|
| 880 | [ |
||
| 881 | 1 | 'messageCode' => '{field} is {overflow} {overflow,plural,characters} too long.', |
|
| 882 | 1 | 'maxLength' => $maxLength, |
|
| 883 | 1 | 'overflow' => mb_strlen($value) - $maxLength, |
|
| 884 | 'status' => 422 |
||
| 885 | 1 | ] |
|
| 886 | 1 | ); |
|
| 887 | 1 | } |
|
| 888 | 49 | if ($pattern = $field->val('pattern')) { |
|
| 889 | 4 | $regex = '`'.str_replace('`', preg_quote('`', '`'), $pattern).'`'; |
|
| 890 | |||
| 891 | 4 | if (!preg_match($regex, $value)) { |
|
| 892 | 2 | $field->addError( |
|
| 893 | 2 | 'invalid', |
|
| 894 | [ |
||
| 895 | 2 | 'messageCode' => '{field} is in the incorrect format.', |
|
| 896 | 'status' => 422 |
||
| 897 | 2 | ] |
|
| 898 | 2 | ); |
|
| 899 | 2 | } |
|
| 900 | 4 | } |
|
| 901 | 49 | if ($format = $field->val('format')) { |
|
| 902 | 15 | $type = $format; |
|
| 903 | switch ($format) { |
||
| 904 | 15 | case 'date-time': |
|
| 905 | 4 | $result = $this->validateDatetime($result, $field); |
|
| 906 | 4 | if ($result instanceof \DateTimeInterface) { |
|
| 907 | 4 | $result = $result->format(\DateTime::RFC3339); |
|
| 908 | 4 | } |
|
| 909 | 4 | break; |
|
| 910 | 11 | case 'email': |
|
| 911 | 1 | $result = filter_var($result, FILTER_VALIDATE_EMAIL); |
|
| 912 | 1 | break; |
|
| 913 | 10 | case 'ipv4': |
|
| 914 | 1 | $type = 'IPv4 address'; |
|
| 915 | 1 | $result = filter_var($result, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4); |
|
| 916 | 1 | break; |
|
| 917 | 9 | case 'ipv6': |
|
| 918 | 1 | $type = 'IPv6 address'; |
|
| 919 | 1 | $result = filter_var($result, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6); |
|
| 920 | 1 | break; |
|
| 921 | 8 | case 'ip': |
|
| 922 | 1 | $type = 'IP address'; |
|
| 923 | 1 | $result = filter_var($result, FILTER_VALIDATE_IP); |
|
| 924 | 1 | break; |
|
| 925 | 7 | case 'uri': |
|
| 926 | 7 | $type = 'URI'; |
|
| 927 | 7 | $result = filter_var($result, FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED | FILTER_FLAG_SCHEME_REQUIRED); |
|
| 928 | 7 | break; |
|
| 929 | default: |
||
| 930 | trigger_error("Unrecognized format '$format'.", E_USER_NOTICE); |
||
| 931 | } |
||
| 932 | 15 | if ($result === false) { |
|
| 933 | 5 | $field->addTypeError($type); |
|
| 934 | 5 | } |
|
| 935 | 15 | } |
|
| 936 | |||
| 937 | 49 | if ($field->isValid()) { |
|
| 938 | 41 | return $result; |
|
| 939 | } else { |
||
| 940 | 12 | return Invalid::value(); |
|
| 941 | } |
||
| 942 | } |
||
| 943 | |||
| 944 | /** |
||
| 945 | * Validate a unix timestamp. |
||
| 946 | * |
||
| 947 | * @param mixed $value The value to validate. |
||
| 948 | * @param ValidationField $field The field being validated. |
||
| 949 | * @return int|Invalid Returns a valid timestamp or invalid if the value doesn't validate. |
||
| 950 | */ |
||
| 951 | 8 | protected function validateTimestamp($value, ValidationField $field) { |
|
| 952 | 8 | if (is_numeric($value) && $value > 0) { |
|
| 953 | 2 | $result = (int)$value; |
|
| 954 | 8 | } elseif (is_string($value) && $ts = strtotime($value)) { |
|
| 955 | 1 | $result = $ts; |
|
| 956 | 1 | } else { |
|
| 957 | 5 | $field->addTypeError('timestamp'); |
|
| 958 | 5 | $result = Invalid::value(); |
|
| 959 | } |
||
| 960 | 8 | return $result; |
|
| 961 | } |
||
| 962 | |||
| 963 | /** |
||
| 964 | * Validate a null value. |
||
| 965 | * |
||
| 966 | * @param mixed $value The value to validate. |
||
| 967 | * @param ValidationField $field The error collector for the field. |
||
| 968 | * @return null|Invalid Returns **null** or invalid. |
||
| 969 | */ |
||
| 970 | protected function validateNull($value, ValidationField $field) { |
||
| 971 | if ($value === null) { |
||
| 972 | return null; |
||
| 973 | } |
||
| 974 | $field->addError('invalid', ['messageCode' => '{field} should be null.', 'status' => 422]); |
||
| 975 | return Invalid::value(); |
||
| 976 | } |
||
| 977 | |||
| 978 | /** |
||
| 979 | * Validate a value against an enum. |
||
| 980 | * |
||
| 981 | * @param mixed $value The value to test. |
||
| 982 | * @param ValidationField $field The validation object for adding errors. |
||
| 983 | * @return mixed|Invalid Returns the value if it is one of the enumerated values or invalid otherwise. |
||
| 984 | */ |
||
| 985 | 115 | protected function validateEnum($value, ValidationField $field) { |
|
| 986 | 115 | $enum = $field->val('enum'); |
|
| 987 | 115 | if (empty($enum)) { |
|
| 988 | 114 | return $value; |
|
| 989 | } |
||
| 990 | |||
| 991 | 1 | if (!in_array($value, $enum, true)) { |
|
| 992 | 1 | $field->addError( |
|
| 993 | 1 | 'invalid', |
|
| 994 | [ |
||
| 995 | 1 | 'messageCode' => '{field} must be one of: {enum}.', |
|
| 996 | 1 | 'enum' => $enum, |
|
| 997 | 'status' => 422 |
||
| 998 | 1 | ] |
|
| 999 | 1 | ); |
|
| 1000 | 1 | return Invalid::value(); |
|
| 1001 | } |
||
| 1002 | 1 | return $value; |
|
| 1003 | } |
||
| 1004 | |||
| 1005 | /** |
||
| 1006 | * Call all of the validators attached to a field. |
||
| 1007 | * |
||
| 1008 | * @param mixed $value The field value being validated. |
||
| 1009 | * @param ValidationField $field The validation object to add errors. |
||
| 1010 | */ |
||
| 1011 | 115 | protected function callValidators($value, ValidationField $field) { |
|
| 1012 | 115 | $valid = true; |
|
| 1013 | |||
| 1014 | // Strip array references in the name except for the last one. |
||
| 1015 | 115 | $key = preg_replace(['`\[\d+\]$`', '`\[\d+\]`'], ['[]', ''], $field->getName()); |
|
| 1016 | 115 | if (!empty($this->validators[$key])) { |
|
| 1017 | 2 | foreach ($this->validators[$key] as $validator) { |
|
| 1018 | 2 | $r = call_user_func($validator, $value, $field); |
|
| 1019 | |||
| 1020 | 2 | if ($r === false || Invalid::isInvalid($r)) { |
|
| 1021 | 1 | $valid = false; |
|
| 1022 | 1 | } |
|
| 1023 | 2 | } |
|
| 1024 | 2 | } |
|
| 1025 | |||
| 1026 | // Add an error on the field if the validator hasn't done so. |
||
| 1027 | 115 | if (!$valid && $field->isValid()) { |
|
| 1028 | $field->addError('invalid', ['messageCode' => '{field} is invalid.', 'status' => 422]); |
||
| 1029 | } |
||
| 1030 | 115 | } |
|
| 1031 | |||
| 1032 | /** |
||
| 1033 | * Specify data which should be serialized to JSON. |
||
| 1034 | * |
||
| 1035 | * This method specifically returns data compatible with the JSON schema format. |
||
| 1036 | * |
||
| 1037 | * @return mixed Returns data which can be serialized by **json_encode()**, which is a value of any type other than a resource. |
||
| 1038 | * @link http://php.net/manual/en/jsonserializable.jsonserialize.php |
||
| 1039 | * @link http://json-schema.org/ |
||
| 1040 | */ |
||
| 1041 | public function jsonSerialize() { |
||
| 1076 | |||
| 1077 | /** |
||
| 1078 | * Look up a type based on its alias. |
||
| 1079 | * |
||
| 1080 | * @param string $alias The type alias or type name to lookup. |
||
| 1081 | * @return mixed |
||
| 1082 | */ |
||
| 1083 | 137 | protected function getType($alias) { |
|
| 1084 | 137 | if (isset(self::$types[$alias])) { |
|
| 1085 | return $alias; |
||
| 1086 | } |
||
| 1087 | 137 | foreach (self::$types as $type => $aliases) { |
|
| 1088 | 137 | if (in_array($alias, $aliases, true)) { |
|
| 1089 | 137 | return $type; |
|
| 1090 | } |
||
| 1091 | 137 | } |
|
| 1092 | 8 | return null; |
|
| 1093 | } |
||
| 1094 | |||
| 1095 | /** |
||
| 1096 | * Get the class that's used to contain validation information. |
||
| 1097 | * |
||
| 1098 | * @return Validation|string Returns the validation class. |
||
| 1099 | */ |
||
| 1100 | 117 | public function getValidationClass() { |
|
| 1103 | |||
| 1104 | /** |
||
| 1105 | * Set the class that's used to contain validation information. |
||
| 1106 | * |
||
| 1107 | * @param Validation|string $class Either the name of a class or a class that will be cloned. |
||
| 1108 | * @return $this |
||
| 1109 | */ |
||
| 1110 | 1 | public function setValidationClass($class) { |
|
| 1118 | |||
| 1119 | /** |
||
| 1120 | * Create a new validation instance. |
||
| 1121 | * |
||
| 1122 | * @return Validation Returns a validation object. |
||
| 1123 | */ |
||
| 1124 | 117 | protected function createValidation() { |
|
| 1134 | |||
| 1135 | /** |
||
| 1136 | * Check whether or not a value is an array or accessible like an array. |
||
| 1137 | * |
||
| 1138 | * @param mixed $value The value to check. |
||
| 1139 | * @return bool Returns **true** if the value can be used like an array or **false** otherwise. |
||
| 1140 | */ |
||
| 1141 | 77 | private function isArray($value) { |
|
| 1144 | |||
| 1145 | /** |
||
| 1146 | * Cast a value to an array. |
||
| 1147 | * |
||
| 1148 | * @param \Traversable $value The value to convert. |
||
| 1149 | * @return array Returns an array. |
||
| 1150 | */ |
||
| 1151 | private function toArray(\Traversable $value) { |
||
| 1157 | } |
||
| 1158 |
This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.