ComodoDecodeCSR::checkDVC()   C
last analyzed

Complexity

Conditions 7
Paths 10

Size

Total Lines 35
Code Lines 15

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 6
CRAP Score 7

Importance

Changes 2
Bugs 0 Features 0
Metric Value
c 2
b 0
f 0
dl 0
loc 35
ccs 6
cts 6
cp 1
rs 6.7272
cc 7
eloc 15
nc 10
nop 1
crap 7
1
<?php
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/**
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 * @author     Chris Hilsdon <[email protected]>
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 * @package    ComodoDecodeCSR
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 * @copyright  2016 Xigen
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 * @license    GNU General Public License v3
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 * @link       https://github.com/XigenChris/ComodoDecodeCSR
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 */
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namespace Xigen;
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use GuzzleHttp\Client;
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use GuzzleHttp\Exception\ClientException;
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use GuzzleHttp\Psr7\Response;
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class ComodoDecodeCSR
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{
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    use Traits\GetSetUnset;
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    protected $MD5;
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    protected $SHA1;
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    protected $Endpoint = "https://secure.comodo.net/products/!decodeCSR";
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    protected $CSR;
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    /**
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     * An array of warnings that can be show after the test
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     * @var array
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     */
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    protected $warnings = [];
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    protected $Form = [
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        'responseFormat' => 'N',
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        'showErrorCodes' => 'N',
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        'showErrorMessages' => 'N',
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        'showFieldNames' => 'N',
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        'showEmptyFields' => 'N',
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        'showCN' => 'N',
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        'showAddress' => 'N',
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        'showPublicKey' => 'N',
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        'showKeySize' => 'N',
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        'showSANDNSNames' => 'Y',
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        'showCSR' => 'N',
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        'showCSRHashes' => 'Y',
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        'showSignatureAlgorithm' => 'N',
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        'product' => '',
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        'countryNameType' => 'TWOCHAR'
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    ];
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    private $request;
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    private $forceSSL = false;
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    public function getCN()
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    {
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        $CSRInfo = $this->decodeCSR();
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        return $CSRInfo['subject']['CN'];
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    }
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    public function setCSR($csr)
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    {
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        $this->CSR = $csr;
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        //Check that this is a valid CSR
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        $this->decodeCSR();
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        $this->Form['csr'] = $csr;
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    }
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    protected function addWarning($code, $message)
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    {
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        $this->warnings[] = [
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            $code => $message
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        ];
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    }
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    public function fetchHashes()
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    {
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        $client = new Client();
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        $this->request = $client->request('POST', $this->getEndpoint(), [
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            'form_params' => $this->Form
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        ]);
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        return $this->processResponse();
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    }
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    public function checkInstalled()
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    {
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        try {
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            $domain = $this->getCN();
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        } catch (\Exception $e) {
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            return false;
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        }
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        $response = $this->fetchDVCFile($domain);
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        if ($response == false) {
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            return false;
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        }
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        $check = $this->checkDVC($response);
0 ignored issues
show
Compatibility introduced by
$response of type object<Psr\Http\Message\ResponseInterface> is not a sub-type of object<GuzzleHttp\Psr7\Response>. It seems like you assume a concrete implementation of the interface Psr\Http\Message\ResponseInterface to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

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97 2
        if ($check === true) {
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            return $check;
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        }
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        //Try again but this time use https://
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        $this->forceSSL = true;
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        $response = $this->fetchDVCFile($domain);
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        if ($response == false) {
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            return false;
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        }
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        $check = $this->checkDVC($response);
0 ignored issues
show
Compatibility introduced by
$response of type object<Psr\Http\Message\ResponseInterface> is not a sub-type of object<GuzzleHttp\Psr7\Response>. It seems like you assume a concrete implementation of the interface Psr\Http\Message\ResponseInterface to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
110 2
        if ($check === true) {
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            //TODO Add a message to say then you will need to select 'HTTPS CSR
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            //Hash'
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            return $check;
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        }
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        return false;
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    }
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    public function generateDVC()
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    {
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        $DVC = $this->getSHA1() . "\n";
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        $DVC .= "comodoca.com\n";
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        return $DVC;
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    }
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    /**
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     *
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     * @param  GuzzleHttp\Psr7\Response $response
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     * @return bool
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     */
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    public function checkDVC(Response $response)
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    {
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        $body = $response->getBody() . '';
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        $DVC = $this->generateDVC();
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        //Check if we received a 301 or 302 redirect
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        if ($response->getStatusCode() === 301 || $response->getStatusCode() == 302) {
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            return false;
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        }
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        //If the response matches the DVC value return true
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        if ($body === $DVC) {
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            return true;
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        }
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        //Check if last 2 characters are new lines
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        if (substr($body, -2) === "\n\n") {
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            $body = substr($body, 0, -2) . "\n";
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        }
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        //Check if last character is not a new line
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        if (substr($body, -1) !== "\n") {
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            //Add said new line
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            $body = $body . "\n";
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        }
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        var_dump($body, $DVC);
0 ignored issues
show
Security Debugging Code introduced by
var_dump($body, $DVC); looks like debug code. Are you sure you do not want to remove it? This might expose sensitive data.
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        //Check it again
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        if ($body === $DVC) {
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            return true;
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        }
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        return false;
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    }
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    private function decodeCSR()
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    {
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        try {
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            $data = openssl_csr_get_public_key($this->getCSR());
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            $details = openssl_pkey_get_details($data);
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            $key = $details['key'];
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            $subject = openssl_csr_get_subject($this->getCSR());
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        } catch (\Exception $e) {
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            throw new Exception("Invalid CSR");
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        }
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        return array(
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            "subject" => $subject,
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            "key" => $key
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        );
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    }
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    private function processResponse()
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    {
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        $response = $this->request->getBody();
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        $lines = explode("\n", $response);
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        $data = array();
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        //Remove the first array as we don't need the SAN and can cause problems
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        //with a multi domain SAN
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        unset($lines[0]);
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        foreach ($lines as $v) {
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            if (!empty($v)) {
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                $value = explode("=", $v);
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                $data[$value[0]] = $value[1];
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            }
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        }
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        $this->setMD5($data["md5"]);
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        $this->setSHA1($data["sha1"]);
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        return $data ? $data : false;
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    }
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    private function fetchDVCFile($domain)
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    {
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        //We do most of our DVC over http:// unless the site is fully SSL
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        $protocol = 'http://';
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        if ($this->forceSSL) {
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            $protocol = 'https://';
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        }
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        $url = $protocol . $domain . "/" . $this->getMD5() . '.txt';
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        $client = new Client(['allow_redirects' => false, 'verify' => false]);
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        try {
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            $response = $client->request('GET', $url);
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        } catch (ClientException $e) {
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            var_dump('te', $e);
0 ignored issues
show
Security Debugging Code introduced by
var_dump('te', $e); looks like debug code. Are you sure you do not want to remove it? This might expose sensitive data.
Loading history...
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            return false;
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        }
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        return $response;
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    }
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}
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