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Edit File : Validator.php \| Size : 3.57 KB
<?php namespace Dotenv; use Dotenv\Exception\InvalidCallbackException; use Dotenv\Exception\ValidationException; /** * This is the validator class. * * It's responsible for applying validations against a number of variables. / class Validator { /* * The variables to validate. * * @var array / protected $variables; /* * The loader instance. * * @var \Dotenv\Loader / protected $loader; /* * Create a new validator instance. * * @param array $variables * @param \Dotenv\Loader $loader * * @return void / public function __construct(array $variables, Loader $loader) { $this->variables = $variables; $this->loader = $loader; $this->assertCallback( function ($value) { return $value !== null; }, 'is missing' ); } /* * Assert that each variable is not empty. * * @return \Dotenv\Validator / public function notEmpty() { return $this->assertCallback( function ($value) { return strlen(trim($value)) > 0; }, 'is empty' ); } /* * Assert that each specified variable is an integer. * * @return \Dotenv\Validator / public function isInteger() { return $this->assertCallback( function ($value) { return ctype_digit($value); }, 'is not an integer' ); } /* * Assert that each specified variable is a boolean. * * @return \Dotenv\Validator / public function isBoolean() { return $this->assertCallback( function ($value) { if ($value === '') { return false; } return (filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE) !== NULL); }, 'is not a boolean' ); } /* * Assert that each variable is amongst the given choices. * * @param string[] $choices * * @return \Dotenv\Validator / public function allowedValues(array $choices) { return $this->assertCallback( function ($value) use ($choices) { return in_array($value, $choices); }, 'is not an allowed value' ); } /* * Assert that the callback returns true for each variable. * * @param callable $callback * @param string $message * * @throws \Dotenv\Exception\InvalidCallbackException\|\Dotenv\Exception\ValidationException * * @return \Dotenv\Validator */ protected function assertCallback($callback, $message = 'failed callback assertion') { if (!is_callable($callback)) { throw new InvalidCallbackException('The provided callback must be callable.'); } $variablesFailingAssertion = array(); foreach ($this->variables as $variableName) { $variableValue = $this->loader->getEnvironmentVariable($variableName); if (call_user_func($callback, $variableValue) === false) { $variablesFailingAssertion[] = $variableName." $message"; } } if (count($variablesFailingAssertion) > 0) { throw new ValidationException(sprintf( 'One or more environment variables failed assertions: %s.', implode(', ', $variablesFailingAssertion) )); } return $this; } } Back

Edit File : Validator.php | Size : 3.57 KB

<?php

namespace Dotenv;

use Dotenv\Exception\InvalidCallbackException;
use Dotenv\Exception\ValidationException;

/**
 * This is the validator class.
 *
 * It's responsible for applying validations against a number of variables.
 */
class Validator
{
    /**
     * The variables to validate.
     *
     * @var array
     */
    protected $variables;

/**
     * The loader instance.
     *
     * @var \Dotenv\Loader
     */
    protected $loader;

/**
     * Create a new validator instance.
     *
     * @param array          $variables
     * @param \Dotenv\Loader $loader
     *
     * @return void
     */
    public function __construct(array $variables, Loader $loader)
    {
        $this->variables = $variables;
        $this->loader = $loader;

$this->assertCallback(
            function ($value) {
                return $value !== null;
            },
            'is missing'
        );
    }

/**
     * Assert that each variable is not empty.
     *
     * @return \Dotenv\Validator
     */
    public function notEmpty()
    {
        return $this->assertCallback(
            function ($value) {
                return strlen(trim($value)) > 0;
            },
            'is empty'
        );
    }

/**
     * Assert that each specified variable is an integer.
     *
     * @return \Dotenv\Validator
     */
    public function isInteger()
    {
        return $this->assertCallback(
            function ($value) {
                return ctype_digit($value);
            },
            'is not an integer'
        );
    }

/**
     * Assert that each specified variable is a boolean.
     *
     * @return \Dotenv\Validator
     */
    public function isBoolean()
    {
        return $this->assertCallback(
            function ($value) {
                if ($value === '') {
                    return false;
                }

return (filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE) !== NULL);
            },
            'is not a boolean'
        );
    }

/**
     * Assert that each variable is amongst the given choices.
     *
     * @param string[] $choices
     *
     * @return \Dotenv\Validator
     */
    public function allowedValues(array $choices)
    {
        return $this->assertCallback(
            function ($value) use ($choices) {
                return in_array($value, $choices);
            },
            'is not an allowed value'
        );
    }

/**
     * Assert that the callback returns true for each variable.
     *
     * @param callable $callback
     * @param string   $message
     *
     * @throws \Dotenv\Exception\InvalidCallbackException|\Dotenv\Exception\ValidationException
     *
     * @return \Dotenv\Validator
     */
    protected function assertCallback($callback, $message = 'failed callback assertion')
    {
        if (!is_callable($callback)) {
            throw new InvalidCallbackException('The provided callback must be callable.');
        }

$variablesFailingAssertion = array();
        foreach ($this->variables as $variableName) {
            $variableValue = $this->loader->getEnvironmentVariable($variableName);
            if (call_user_func($callback, $variableValue) === false) {
                $variablesFailingAssertion[] = $variableName." $message";
            }
        }

if (count($variablesFailingAssertion) > 0) {
            throw new ValidationException(sprintf(
                'One or more environment variables failed assertions: %s.',
                implode(', ', $variablesFailingAssertion)
            ));
        }

return $this;
    }
}

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