Keypair.php

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<?php
namespace TYPO3\CMS\Rsaauth;

class Keypair implements \TYPO3\CMS\Core\SingletonInterface {
    protected $exponent = 0;

    protected $privateKey = '';

    protected $publicKeyModulus = 0;

    public function isReady() {
        return $this->hasExponent() && $this->hasPrivateKey() && $this->hasPublicKeyModulus();
    }

    public function getExponent() {
        return $this->exponent;
    }

    public function setExponent($exponent) {
        if ($this->hasExponent()) {
            throw new \BadMethodCallException('setExponent() must not be called more than one time.', 1296062830);
        }

        $this->exponent = $exponent;
    }

    protected function hasExponent() {
        return $this->getExponent() !== 0;
    }

    public function getPrivateKey() {
        return $this->privateKey;
    }

    public function setPrivateKey($privateKey) {
        if ($this->hasPrivateKey()) {
            throw new \BadMethodCallException('setPrivateKey() must not be called more than one time.', 1296062831);
        }

        $this->privateKey = $privateKey;
    }

    protected function hasPrivateKey() {
        return $this->getPrivateKey() !== '';
    }

    public function getPublicKeyModulus() {
        return $this->publicKeyModulus;
    }

    public function setPublicKey($publicKeyModulus) {
        if ($this->hasPublicKeyModulus()) {
            throw new \BadMethodCallException('setPublicKey() must not be called more than one time.', 1296062832);
        }

        $this->publicKeyModulus = $publicKeyModulus;
    }

    protected function hasPublicKeyModulus() {
        return $this->getPublicKeyModulus() !== 0;
    }
}