<?php
namespace Illuminate\Validation\Rules;
use Illuminate\Container\Container;
use Illuminate\Contracts\Validation\DataAwareRule;
use Illuminate\Contracts\Validation\Rule;
use Illuminate\Contracts\Validation\UncompromisedVerifier;
use Illuminate\Contracts\Validation\ValidatorAwareRule;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Traits\Conditionable;
use InvalidArgumentException;
class Password implements Rule, DataAwareRule, ValidatorAwareRule
{
use Conditionable;
/**
* The validator performing the validation.
*
* @var \Illuminate\Contracts\Validation\Validator
*/
protected $validator;
/**
* The data under validation.
*
* @var array
*/
protected $data;
/**
* The minimum size of the password.
*
* @var int
*/
protected $min = 8;
/**
* If the password requires at least one uppercase and one lowercase letter.
*
* @var bool
*/
protected $mixedCase = false;
/**
* If the password requires at least one letter.
*
* @var bool
*/
protected $letters = false;
/**
* If the password requires at least one number.
*
* @var bool
*/
protected $numbers = false;
/**
* If the password requires at least one symbol.
*
* @var bool
*/
protected $symbols = false;
/**
* If the password should not have been compromised in data leaks.
*
* @var bool
*/
protected $uncompromised = false;
/**
* The number of times a password can appear in data leaks before being considered compromised.
*
* @var int
*/
protected $compromisedThreshold = 0;
/**
* Additional validation rules that should be merged into the default rules during validation.
*
* @var array
*/
protected $customRules = [];
/**
* The failure messages, if any.
*
* @var array
*/
protected $messages = [];
/**
* The callback that will generate the "default" version of the password rule.
*
* @var string|array|callable|null
*/
public static $defaultCallback;
/**
* Create a new rule instance.
*
* @param int $min
* @return void
*/
public function __construct($min)
{
$this->min = max((int) $min, 1);
}
/**
* Set the default callback to be used for determining a password's default rules.
*
* If no arguments are passed, the default password rule configuration will be returned.
*
* @param static|callable|null $callback
* @return static|null
*/
public static function defaults($callback = null)
{
if (is_null($callback)) {
return static::default();
}
if (! is_callable($callback) && ! $callback instanceof static) {
throw new InvalidArgumentException('The given callback should be callable or an instance of '.static::class);
}
static::$defaultCallback = $callback;
}
/**
* Get the default configuration of the password rule.
*
* @return static
*/
public static function default()
{
$password = is_callable(static::$defaultCallback)
? call_user_func(static::$defaultCallback)
: static::$defaultCallback;
return $password instanceof Rule ? $password : static::min(8);
}
/**
* Get the default configuration of the password rule and mark the field as required.
*
* @return array
*/
public static function required()
{
return ['required', static::default()];
}
/**
* Get the default configuration of the password rule and mark the field as sometimes being required.
*
* @return array
*/
public static function sometimes()
{
return ['sometimes', static::default()];
}
/**
* Set the performing validator.
*
* @param \Illuminate\Contracts\Validation\Validator $validator
* @return $this
*/
public function setValidator($validator)
{
$this->validator = $validator;
return $this;
}
/**
* Set the data under validation.
*
* @param array $data
* @return $this
*/
public function setData($data)
{
$this->data = $data;
return $this;
}
/**
* Sets the minimum size of the password.
*
* @param int $size
* @return $this
*/
public static function min($size)
{
return new static($size);
}
/**
* Ensures the password has not been compromised in data leaks.
*
* @param int $threshold
* @return $this
*/
public function uncompromised($threshold = 0)
{
$this->uncompromised = true;
$this->compromisedThreshold = $threshold;
return $this;
}
/**
* Makes the password require at least one uppercase and one lowercase letter.
*
* @return $this
*/
public function mixedCase()
{
$this->mixedCase = true;
return $this;
}
/**
* Makes the password require at least one letter.
*
* @return $this
*/
public function letters()
{
$this->letters = true;
return $this;
}
/**
* Makes the password require at least one number.
*
* @return $this
*/
public function numbers()
{
$this->numbers = true;
return $this;
}
/**
* Makes the password require at least one symbol.
*
* @return $this
*/
public function symbols()
{
$this->symbols = true;
return $this;
}
/**
* Specify additional validation rules that should be merged with the default rules during validation.
*
* @param string|array $rules
* @return $this
*/
public function rules($rules)
{
$this->customRules = Arr::wrap($rules);
return $this;
}
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value)
{
$this->messages = [];
$validator = Validator::make(
$this->data,
[$attribute => array_merge(['string', 'min:'.$this->min], $this->customRules)],
$this->validator->customMessages,
$this->validator->customAttributes
)->after(function ($validator) use ($attribute, $value) {
if (! is_string($value)) {
return;
}
if ($this->mixedCase && ! preg_match('/(\p{Ll}+.*\p{Lu})|(\p{Lu}+.*\p{Ll})/u', $value)) {
$validator->errors()->add(
$attribute,
$this->getErrorMessage('validation.password.mixed')
);
}
if ($this->letters && ! preg_match('/\pL/u', $value)) {
$validator->errors()->add(
$attribute,
$this->getErrorMessage('validation.password.letters')
);
}
if ($this->symbols && ! preg_match('/\p{Z}|\p{S}|\p{P}/u', $value)) {
$validator->errors()->add(
$attribute,
$this->getErrorMessage('validation.password.symbols')
);
}
if ($this->numbers && ! preg_match('/\pN/u', $value)) {
$validator->errors()->add(
$attribute,
$this->getErrorMessage('validation.password.numbers')
);
}
});
if ($validator->fails()) {
return $this->fail($validator->messages()->all());
}
if ($this->uncompromised && ! Container::getInstance()->make(UncompromisedVerifier::class)->verify([
'value' => $value,
'threshold' => $this->compromisedThreshold,
])) {
return $this->fail($this->getErrorMessage('validation.password.uncompromised'));
}
return true;
}
/**
* Get the validation error message.
*
* @return array
*/
public function message()
{
return $this->messages;
}
/**
* Get the translated password error message.
*
* @param string $key
* @return string
*/
protected function getErrorMessage($key)
{
if (($message = $this->validator->getTranslator()->get($key)) !== $key) {
return $message;
}
$messages = [
'validation.password.mixed' => 'The :attribute must contain at least one uppercase and one lowercase letter.',
'validation.password.letters' => 'The :attribute must contain at least one letter.',
'validation.password.symbols' => 'The :attribute must contain at least one symbol.',
'validation.password.numbers' => 'The :attribute must contain at least one number.',
'validation.password.uncompromised' => 'The given :attribute has appeared in a data leak. Please choose a different :attribute.',
];
return $messages[$key];
}
/**
* Adds the given failures, and return false.
*
* @param array|string $messages
* @return bool
*/
protected function fail($messages)
{
$messages = collect(Arr::wrap($messages))->map(function ($message) {
return $this->validator->getTranslator()->get($message);
})->all();
$this->messages = array_merge($this->messages, $messages);
return false;
}
}
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