586 lines
14 KiB
PHP
586 lines
14 KiB
PHP
<?php namespace Laravel\Validation;
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use Laravel\IoC;
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use Laravel\Str;
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use Laravel\Lang_Factory;
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class Validator_Factory {
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/**
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* The language factory instance.
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*
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* @var Lang_Factory
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*/
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protected $lang;
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/**
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* Create a new validator factory instance.
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*
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* @param Lang_Factory $lang
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* @return void
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*/
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public function __construct(Lang_Factory $lang)
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{
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$this->lang = $lang;
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}
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/**
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* Create a new validator instance.
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*
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* @param array $attributes
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* @param array $rules
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* @param array $messages
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* @return Validator
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*/
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public function make($attributes, $rules, $messages = array())
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{
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return new Validator($this->lang, $attributes, $rules, $messages);
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}
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}
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class Validator {
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/**
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* The array being validated.
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*
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* @var array
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*/
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public $attributes;
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/**
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* The validation rules.
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*
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* @var array
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*/
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public $rules;
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/**
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* The validation messages.
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*
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* @var array
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*/
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public $messages;
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/**
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* The post-validation error messages.
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*
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* @var Messages
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*/
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public $errors;
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/**
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* The language that should be used when retrieving error messages.
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*
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* @var string
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*/
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public $language;
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/**
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* The database connection that should be used by the validator.
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*
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* @var DB\Connection
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*/
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public $connection;
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/**
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* The size related validation rules.
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*
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* @var array
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*/
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protected $size_rules = array('size', 'between', 'min', 'max');
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/**
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* The numeric related validation rules.
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*
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* @var array
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*/
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protected $numeric_rules = array('numeric', 'integer');
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/**
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* Create a new validator instance.
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*
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* @param Lang_Factory $lang
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* @param array $attributes
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* @param array $rules
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* @param array $messages
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* @return void
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*/
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public function __construct(Lang_Factory $lang, $attributes, $rules, $messages = array())
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{
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$this->lang = $lang;
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$this->rules = $rules;
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$this->messages = $messages;
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$this->attributes = $attributes;
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}
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/**
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* Create a new validator instance.
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*
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* @param array $attributes
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* @param array $rules
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* @param array $messages
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* @return Validator
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*/
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public static function make($attributes, $rules, $messages = array())
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{
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return IoC::container()->resolve('laravel.validator')->make($attributes, $rules, $messages);
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}
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/**
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* Validate the target array using the specified validation rules.
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*
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* @return bool
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*/
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public function invalid()
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{
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return ! $this->valid();
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}
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/**
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* Validate the target array using the specified validation rules.
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*
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* @return bool
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*/
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public function valid()
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{
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$this->errors = new Messages;
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foreach ($this->rules as $attribute => $rules)
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{
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foreach ($rules as $rule)
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{
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$this->check($attribute, $rule);
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}
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}
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return count($this->errors->messages) == 0;
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}
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/**
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* Evaluate an attribute against a validation rule.
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*
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* @param string $attribute
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* @param string $rule
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* @return void
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*/
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protected function check($attribute, $rule)
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{
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list($rule, $parameters) = $this->parse($rule);
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if ( ! method_exists($this, $validator = 'validate_'.$rule))
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{
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throw new \Exception("Validation rule [$rule] doesn't exist.");
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}
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// No validation will be run for attributes that do not exist unless the rule being validated
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// is "required" or "accepted". No other rules have implicit "required" checks.
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if ( ! static::validate_required($attribute) and ! in_array($rule, array('required', 'accepted'))) return;
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if ( ! $this->$validator($attribute, $parameters))
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{
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$message = $this->format_message($this->get_message($attribute, $rule));
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$this->errors->add($attribute, $message, $attribute, $rule, $parameters);
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}
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}
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/**
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* Validate that a required attribute exists in the attributes array.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_required($attribute)
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{
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if ( ! array_key_exists($attribute, $this->attributes)) return false;
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if (is_string($this->attributes[$attribute]) and trim($this->attributes[$attribute]) === '') return false;
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return true;
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}
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/**
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* Validate that an attribute has a matching confirmation attribute.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_confirmed($attribute)
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{
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$value = $this->attributes[$attribute];
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$confirmation = $this->attributes[$attribute.'_confirmation'];
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return array_key_exists($attribute.'_confirmation', $this->attributes) and $value == $confirmation;
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}
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/**
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* Validate that an attribute was "accepted".
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*
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* This validation rule implies the attribute is "required".
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_accepted($attribute)
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{
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$value = $this->attributes[$attribute];
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return static::validate_required($attribute) and ($value == 'yes' or $value == '1');
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}
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/**
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* Validate that an attribute is numeric.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_numeric($attribute)
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{
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return is_numeric($this->attributes[$attribute]);
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}
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/**
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* Validate that an attribute is an integer.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_integer($attribute)
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{
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return filter_var($this->attributes[$attribute], FILTER_VALIDATE_INT) !== false;
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}
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/**
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* Validate the size of an attribute.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_size($attribute, $parameters)
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{
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return $this->get_size($attribute) == $parameters[0];
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}
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/**
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* Validate the size of an attribute is between a set of values.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_between($attribute, $parameters)
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{
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return $this->get_size($attribute) >= $parameters[0] and $this->get_size($attribute) <= $parameters[1];
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}
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/**
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* Validate the size of an attribute is greater than a minimum value.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_min($attribute, $parameters)
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{
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return $this->get_size($attribute) >= $parameters[0];
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}
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/**
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* Validate the size of an attribute is less than a maximum value.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_max($attribute, $parameters)
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{
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return $this->get_size($attribute) <= $parameters[0];
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}
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/**
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* Get the size of an attribute.
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*
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* @param string $attribute
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* @return mixed
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*/
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protected function get_size($attribute)
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{
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if (is_numeric($this->attributes[$attribute]) and $this->has_rule($attribute, $this->numeric_rules))
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{
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return $this->attributes[$attribute];
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}
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$value = $this->attributes[$attribute];
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return (array_key_exists($attribute, $_FILES)) ? $value['size'] / 1024 : Str::length(trim($value));
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}
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/**
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* Validate an attribute is contained within a list of values.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_in($attribute, $parameters)
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{
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return in_array($this->attributes[$attribute], $parameters);
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}
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/**
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* Validate an attribute is not contained within a list of values.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_not_in($attribute, $parameters)
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{
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return ! in_array($this->attributes[$attribute], $parameters);
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}
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/**
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* Validate the uniqueness of an attribute value on a given database table.
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*
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* If a database column is not specified, the attribute name will be used.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_unique($attribute, $parameters)
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{
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if ( ! isset($parameters[1])) $parameters[1] = $attribute;
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if (is_null($this->connection)) $this->connection = IoC::resolve('laravel.database')->connection();
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return $this->connection->table($parameters[0])->where($parameters[1], '=', $this->attributes[$attribute])->count() == 0;
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}
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/**
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* Validate than an attribute is a valid e-mail address.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_email($attribute)
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{
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return filter_var($this->attributes[$attribute], FILTER_VALIDATE_EMAIL) !== false;
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}
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/**
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* Validate than an attribute is a valid URL.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_url($attribute)
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{
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return filter_var($this->attributes[$attribute], FILTER_VALIDATE_URL) !== false;
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}
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/**
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* Validate that an attribute is an active URL.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_active_url($attribute)
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{
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$url = str_replace(array('http://', 'https://', 'ftp://'), '', Str::lower($this->attributes[$attribute]));
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return checkdnsrr($url);
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}
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/**
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* Validate the MIME type of a file is an image MIME type.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_image($attribute)
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{
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return static::validate_mimes($attribute, array('jpg', 'png', 'gif', 'bmp'));
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}
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/**
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* Validate than an attribute contains only alphabetic characters.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_alpha($attribute)
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{
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return preg_match('/^([a-z])+$/i', $this->attributes[$attribute]);
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}
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/**
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* Validate than an attribute contains only alpha-numeric characters.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_alpha_num($attribute)
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{
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return preg_match('/^([a-z0-9])+$/i', $this->attributes[$attribute]);
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}
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/**
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* Validate than an attribute contains only alpha-numeric characters, dashes, and underscores.
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*
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* @param string $attribute
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* @return bool
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*/
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protected function validate_alpha_dash($attribute)
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{
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return preg_match('/^([-a-z0-9_-])+$/i', $this->attributes[$attribute]);
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}
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/**
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* Validate the MIME type of a file upload attribute is in a set of MIME types.
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*
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* @param string $attribute
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* @param array $parameters
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* @return bool
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*/
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protected function validate_mimes($attribute, $parameters)
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{
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$file = IoC::container()->resolve('laravel.file');
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foreach ($parameters as $extension)
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{
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if ($file->is($extension, $this->attributes[$attribute]['tmp_name'])) return true;
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}
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return false;
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}
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/**
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* Get the proper error message for an attribute and rule.
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*
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* Developer specified attribute specific rules take first priority.
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* Developer specified error rules take second priority.
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*
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* If the message has not been specified by the developer, the default will be used
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* from the validation language file.
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*
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* @param string $attribute
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* @param string $rule
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* @return string
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*/
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protected function get_message($attribute, $rule)
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{
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if (array_key_exists($attribute.'_'.$rule, $this->messages))
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{
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return $this->messages[$attribute.'_'.$rule];
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}
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elseif (array_key_exists($rule, $this->messages))
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{
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return $this->messages[$rule];
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}
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else
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{
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$message = $this->lang->line('validation.'.$rule)->get($this->language);
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// For "size" rules that are validating strings or files, we need to adjust
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// the default error message for the appropriate type.
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if (in_array($rule, $this->size_rules) and ! $this->has_rule($attribute, $this->numeric_rules))
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{
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return (array_key_exists($attribute, $_FILES))
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? rtrim($message, '.').' '.$this->lang->line('validation.kilobytes')->get($this->language).'.'
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: rtrim($message, '.').' '.$this->lang->line('validation.characters')->get($this->language).'.';
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}
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return $message;
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}
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}
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/**
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* Replace all error message place-holders with actual values.
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*
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* @param string $message
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* @param string $attribute
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* @param string $rule
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* @param array $parameters
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* @return string
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*/
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protected function format_message($message, $attribute, $rule, $parameters)
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{
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$display = $this->lang->line('attributes.'.$attribute)->get($this->language, str_replace('_', ' ', $attribute));
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$message = str_replace(':attribute', $display, $message);
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if (in_array($rule, $this->size_rules))
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{
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$max = ($rule == 'between') ? $parameters[1] : $parameters[0];
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$message = str_replace(array(':size', ':min', ':max'), array($parameters[0], $parameters[0], $max), $message);
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}
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elseif (in_array($rule, array('in', 'not_in', 'mimes')))
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{
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$message = str_replace(':values', implode(', ', $parameters), $message);
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}
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return $message;
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}
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/**
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* Determine if an attribute has a rule assigned to it.
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*
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* @param string $attribute
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* @param array $rules
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* @return bool
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*/
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protected function has_rule($attribute, $rules)
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{
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foreach ($this->rules[$attribute] as $rule)
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{
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list($rule, $parameters) = $this->parse($rule);
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if (in_array($rule, $rules)) return true;
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}
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return false;
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}
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/**
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* Extract the rule name and parameters from a rule.
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*
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* @param string $rule
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* @return array
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*/
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protected function parse($rule)
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{
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$parameters = (($colon = strpos($rule, ':')) !== false) ? explode(',', substr($rule, $colon + 1)) : array();
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return array(is_numeric($colon) ? substr($rule, 0, $colon) : $rule, $parameters);
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}
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/**
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* Set the language that should be used when retrieving error messages.
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*
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* @param string $language
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* @return Validator
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*/
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public function lang($language)
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{
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$this->language = $language;
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return $this;
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}
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/**
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* Set the database connection that should be used by the validator.
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*
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* @param Database\Connection $connection
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* @return Validator
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*/
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public function connection(Database\Connection $connection)
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{
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$this->connection = $connection;
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return $this;
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}
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} |