mirror of
https://github.com/retailcrm/mailgun-php.git
synced 2024-11-23 21:16:02 +03:00
291 lines
12 KiB
PHP
291 lines
12 KiB
PHP
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<?php
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namespace Guzzle\Service\Description;
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use Guzzle\Common\ToArrayInterface;
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/**
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* Default parameter validator
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*/
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class SchemaValidator implements ValidatorInterface
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{
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/** @var self Cache instance of the object */
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protected static $instance;
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/** @var bool Whether or not integers are converted to strings when an integer is received for a string input */
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protected $castIntegerToStringType;
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/** @var array Errors encountered while validating */
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protected $errors;
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/**
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* @return self
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* @codeCoverageIgnore
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*/
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public static function getInstance()
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{
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if (!self::$instance) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* @param bool $castIntegerToStringType Set to true to convert integers into strings when a required type is a
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* string and the input value is an integer. Defaults to true.
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*/
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public function __construct($castIntegerToStringType = true)
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{
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$this->castIntegerToStringType = $castIntegerToStringType;
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}
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public function validate(Parameter $param, &$value)
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{
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$this->errors = array();
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$this->recursiveProcess($param, $value);
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if (empty($this->errors)) {
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return true;
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} else {
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sort($this->errors);
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return false;
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}
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}
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/**
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* Get the errors encountered while validating
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*
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* @return array
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*/
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public function getErrors()
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{
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return $this->errors ?: array();
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}
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/**
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* Recursively validate a parameter
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*
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* @param Parameter $param API parameter being validated
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* @param mixed $value Value to validate and validate. The value may change during this validate.
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* @param string $path Current validation path (used for error reporting)
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* @param int $depth Current depth in the validation validate
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*
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* @return bool Returns true if valid, or false if invalid
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*/
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protected function recursiveProcess(Parameter $param, &$value, $path = '', $depth = 0)
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{
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// Update the value by adding default or static values
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$value = $param->getValue($value);
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$required = $param->getRequired();
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// if the value is null and the parameter is not required or is static, then skip any further recursion
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if ((null === $value && !$required) || $param->getStatic()) {
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return true;
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}
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$type = $param->getType();
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// Attempt to limit the number of times is_array is called by tracking if the value is an array
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$valueIsArray = is_array($value);
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// If a name is set then update the path so that validation messages are more helpful
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if ($name = $param->getName()) {
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$path .= "[{$name}]";
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}
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if ($type == 'object') {
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// Objects are either associative arrays, ToArrayInterface, or some other object
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if ($param->getInstanceOf()) {
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$instance = $param->getInstanceOf();
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if (!($value instanceof $instance)) {
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$this->errors[] = "{$path} must be an instance of {$instance}";
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return false;
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}
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}
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// Determine whether or not this "value" has properties and should be traversed
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$traverse = $temporaryValue = false;
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// Convert the value to an array
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if (!$valueIsArray && $value instanceof ToArrayInterface) {
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$value = $value->toArray();
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}
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if ($valueIsArray) {
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// Ensure that the array is associative and not numerically indexed
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if (isset($value[0])) {
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$this->errors[] = "{$path} must be an array of properties. Got a numerically indexed array.";
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return false;
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}
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$traverse = true;
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} elseif ($value === null) {
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// Attempt to let the contents be built up by default values if possible
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$value = array();
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$temporaryValue = $valueIsArray = $traverse = true;
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}
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if ($traverse) {
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if ($properties = $param->getProperties()) {
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// if properties were found, the validate each property of the value
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foreach ($properties as $property) {
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$name = $property->getName();
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if (isset($value[$name])) {
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$this->recursiveProcess($property, $value[$name], $path, $depth + 1);
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} else {
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$current = null;
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$this->recursiveProcess($property, $current, $path, $depth + 1);
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// Only set the value if it was populated with something
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if ($current) {
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$value[$name] = $current;
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}
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}
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}
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}
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$additional = $param->getAdditionalProperties();
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if ($additional !== true) {
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// If additional properties were found, then validate each against the additionalProperties attr.
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$keys = array_keys($value);
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// Determine the keys that were specified that were not listed in the properties of the schema
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$diff = array_diff($keys, array_keys($properties));
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if (!empty($diff)) {
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// Determine which keys are not in the properties
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if ($additional instanceOf Parameter) {
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foreach ($diff as $key) {
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$this->recursiveProcess($additional, $value[$key], "{$path}[{$key}]", $depth);
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}
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} else {
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// if additionalProperties is set to false and there are additionalProperties in the values, then fail
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$keys = array_keys($value);
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$this->errors[] = sprintf('%s[%s] is not an allowed property', $path, reset($keys));
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}
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}
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}
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// A temporary value will be used to traverse elements that have no corresponding input value.
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// This allows nested required parameters with default values to bubble up into the input.
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// Here we check if we used a temp value and nothing bubbled up, then we need to remote the value.
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if ($temporaryValue && empty($value)) {
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$value = null;
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$valueIsArray = false;
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}
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}
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} elseif ($type == 'array' && $valueIsArray && $param->getItems()) {
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foreach ($value as $i => &$item) {
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// Validate each item in an array against the items attribute of the schema
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$this->recursiveProcess($param->getItems(), $item, $path . "[{$i}]", $depth + 1);
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}
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}
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// If the value is required and the type is not null, then there is an error if the value is not set
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if ($required && $value === null && $type != 'null') {
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$message = "{$path} is " . ($param->getType() ? ('a required ' . implode(' or ', (array) $param->getType())) : 'required');
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if ($param->getDescription()) {
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$message .= ': ' . $param->getDescription();
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}
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$this->errors[] = $message;
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return false;
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}
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// Validate that the type is correct. If the type is string but an integer was passed, the class can be
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// instructed to cast the integer to a string to pass validation. This is the default behavior.
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if ($type && (!$type = $this->determineType($type, $value))) {
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if ($this->castIntegerToStringType && $param->getType() == 'string' && is_integer($value)) {
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$value = (string) $value;
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} else {
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$this->errors[] = "{$path} must be of type " . implode(' or ', (array) $param->getType());
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}
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}
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// Perform type specific validation for strings, arrays, and integers
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if ($type == 'string') {
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// Strings can have enums which are a list of predefined values
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if (($enum = $param->getEnum()) && !in_array($value, $enum)) {
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$this->errors[] = "{$path} must be one of " . implode(' or ', array_map(function ($s) {
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return '"' . addslashes($s) . '"';
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}, $enum));
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}
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// Strings can have a regex pattern that the value must match
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if (($pattern = $param->getPattern()) && !preg_match($pattern, $value)) {
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$this->errors[] = "{$path} must match the following regular expression: {$pattern}";
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}
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$strLen = null;
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if ($min = $param->getMinLength()) {
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$strLen = strlen($value);
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if ($strLen < $min) {
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$this->errors[] = "{$path} length must be greater than or equal to {$min}";
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}
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}
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if ($max = $param->getMaxLength()) {
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if (($strLen ?: strlen($value)) > $max) {
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$this->errors[] = "{$path} length must be less than or equal to {$max}";
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}
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}
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} elseif ($type == 'array') {
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$size = null;
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if ($min = $param->getMinItems()) {
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$size = count($value);
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if ($size < $min) {
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$this->errors[] = "{$path} must contain {$min} or more elements";
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}
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}
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if ($max = $param->getMaxItems()) {
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if (($size ?: count($value)) > $max) {
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$this->errors[] = "{$path} must contain {$max} or fewer elements";
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}
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}
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} elseif ($type == 'integer' || $type == 'number' || $type == 'numeric') {
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if (($min = $param->getMinimum()) && $value < $min) {
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$this->errors[] = "{$path} must be greater than or equal to {$min}";
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}
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if (($max = $param->getMaximum()) && $value > $max) {
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$this->errors[] = "{$path} must be less than or equal to {$max}";
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}
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}
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return empty($this->errors);
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}
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/**
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* From the allowable types, determine the type that the variable matches
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*
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* @param string $type Parameter type
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* @param mixed $value Value to determine the type
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*
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* @return string|bool Returns the matching type on
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*/
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protected function determineType($type, $value)
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{
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foreach ((array) $type as $t) {
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if ($t == 'string' && (is_string($value) || (is_object($value) && method_exists($value, '__toString')))) {
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return 'string';
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} elseif ($t == 'object' && (is_array($value) || is_object($value))) {
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return 'object';
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} elseif ($t == 'array' && is_array($value)) {
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return 'array';
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} elseif ($t == 'integer' && is_integer($value)) {
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return 'integer';
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} elseif ($t == 'boolean' && is_bool($value)) {
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return 'boolean';
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} elseif ($t == 'number' && is_numeric($value)) {
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return 'number';
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} elseif ($t == 'numeric' && is_numeric($value)) {
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return 'numeric';
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} elseif ($t == 'null' && !$value) {
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return 'null';
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} elseif ($t == 'any') {
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return 'any';
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}
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}
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return false;
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}
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}
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