yii2robokassa.php

<?php

namespace app\modules\shop\components;


use yii\base\InvalidConfigException;

class Merchant extends \yii\base\Object
{
    public $baseUrl = 'http://test.robokassa.ru/Index.aspx';

    /** @var  string Идентефикатор магазина */
    public $login;

    /** @var  string password1 */
    public $passwordPayment;

    /** @var  string password2 */
    public $passwordValidate;

    public $options = [];

    /**
     * @var array $_options
     *
     * MrchLogin        -   Идентификатор магазина в ROBOKASSA
     * OutSum           -   Номер счета в магазине
     * InvId            -   Стоимость заказа, сделанного клиентом
     * InvDesc          -   Описание покупки
     * SignatureValue   -   Контрольная сумма
     * IncCurrLabel     -   Предлагаемая валюта платежа
     * Culture          -   Язык общения с клиентом
     * Encoding         -   Кодировка, в которой возвращается HTML-код кассы
     * Email            -   E-Mail покупателя
     * ExpirationDate   -   Срок действия счета
     * OutSumCurrency   -   Способ указать валюту
     */
    protected $_options = [
        'MrchLogin'         => null,
        'OutSum'            => null,
        'InvId'             => null,
        'InvDesc'           => null,
        'SignatureValue'    => null,
        'IncCurrLabel'      => null,
        'Culture'           => null,
        'Encoding'          => null,
        'Email'             => null,
        'ExpirationDate'    => null,
        'OutSumCurrency'    => null,
    ];

    public function init()
    {
        if (!isset($this->login)) {
            throw new InvalidConfigException("\$login not set.");
        }
        $this->options['MrchLogin'] = $this->login;

        if (!isset($this->passwordPayment)) {
            throw new InvalidConfigException("\$passwordPayment not set.");
        }

        if (!isset($this->passwordValidate)) {
            throw new InvalidConfigException("\$passwordValidete not set.");
        }

        $this->_options = array_merge($this->_options, $this->options);
    }

    public function getPaymentUrl($outSum, $invId, $invDesc, $shp)
    {
        if (!empty($shp)) {
            $shp = $this->prepareParams($shp);
        }

        $outSum = vsprintf('%01.2f', $outSum);

        $signature = "{$this->login}:{$outSum}:{$invId}:{$this->passwordPayment}";
        $signature .= empty($shp) ? null : ':'.$this->paramsToString($shp);
        $signature = md5($signature);

        $this->_options = array_merge($this->_options, ['OutSum' => $outSum, 'InvId' => $invId, 'InvDesc' => $invDesc, 'SignatureValue' => $signature], $shp);
        $query = array_filter($this->_options, function($val){return $val===null ? false : true;} );

        return $this->baseUrl .'?'. http_build_query($query);
    }

    public function validate($outSum, $invId, $signature, $shp, $passwordType = 'Validate')
    {
        $password = $this->{'password'.$passwordType};
        $crc = "{$outSum}:{$invId}:{$password}";
        if (!empty($shp)) {
            ksort($shp);
            $crc .= ':'.$this->paramsToString($shp);
        }

        $crc = md5($crc);
        return strtolower($signature) === strtolower($crc);
    }

    /**
     * @param array $params
     * @return array
     */
    protected function prepareParams(array $params)
    {
        $return = [];
        foreach($params as $key=>$val) {
            if (stripos($key, 'shp_')===false) {
                $return["shp_{$key}"] = $val;
            } else {
                $return[$key] = $val;
            }        }
        ksort($return);
        return $return;
    }

    protected function paramsToString(array $params)
    {
        $str = '';
        foreach($params as $k=>$v){
            $str .= ":$k=$v";
        }
        return ltrim($str, ':');
    }

    public function filterParams(array $params, $needle)
    {
        return array_filter($params, function($val, $key) use ($needle) {
            return stripos($key, $needle)===false ? false : true;
        }, ARRAY_FILTER_USE_BOTH);
    }
}