/**
* _srand() interception
*
* @see ZF-8742
*/
protected function _srand()
{
if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
return;
}
if (!self::$_srandCalled) {
srand(Zend_Crypt_Math::randInteger(0, PHP_INT_MAX));
self::$_srandCalled = true;
}
}
/**
* Filters the HTTP requests being sent to add the Authorization header.
*
* If both AuthSub and ClientLogin tokens are set,
* AuthSub takes precedence. If an AuthSub key is set, then
* secure AuthSub authentication is used, and the request is signed.
* Requests must be signed only with the private key corresponding to the
* public key registered with Google. If an AuthSub key is set, but
* openssl support is not enabled in the PHP installation, an exception is
* thrown.
*
* @param string $method The HTTP method
* @param string $url The URL
* @param array $headers An associate array of headers to be
* sent with the request or null
* @param string $body The body of the request or null
* @param string $contentType The MIME content type of the body or null
* @throws Zend_Gdata_App_Exception if there was a signing failure
* @return array The processed values in an associative array,
* using the same names as the params
*/
public function filterHttpRequest($method, $url, $headers = array(), $body = null, $contentType = null)
{
if ($this->getAuthSubToken() != null) {
// AuthSub authentication
if ($this->getAuthSubPrivateKeyId() != null) {
// secure AuthSub
$time = time();
$nonce = Zend_Crypt_Math::randInteger(0, 999999999);
$dataToSign = $method . ' ' . $url . ' ' . $time . ' ' . $nonce;
// compute signature
$pKeyId = $this->getAuthSubPrivateKeyId();
$signSuccess = openssl_sign($dataToSign, $signature, $pKeyId, OPENSSL_ALGO_SHA1);
if (!$signSuccess) {
// require_once 'Zend/Gdata/App/Exception.php';
throw new Zend_Gdata_App_Exception('openssl_signing failure - returned false');
}
// encode signature
$encodedSignature = base64_encode($signature);
// final header
$headers['authorization'] = 'AuthSub token="' . $this->getAuthSubToken() . '" ' . 'data="' . $dataToSign . '" ' . 'sig="' . $encodedSignature . '" ' . 'sigalg="rsa-sha1"';
} else {
// AuthSub without secure tokens
$headers['authorization'] = 'AuthSub token="' . $this->getAuthSubToken() . '"';
}
} elseif ($this->getClientLoginToken() != null) {
$headers['authorization'] = 'GoogleLogin auth=' . $this->getClientLoginToken();
}
return array('method' => $method, 'url' => $url, 'body' => $body, 'headers' => $headers, 'contentType' => $contentType);
}
/**
* Generate new random word
*
* @return string
*/
protected function _generateWord()
{
$word = '';
$wordLen = $this->getWordLen();
$vowels = $this->_useNumbers ? self::$VN : self::$V;
$consonants = $this->_useNumbers ? self::$CN : self::$C;
$totIndexCon = count($consonants) - 1;
$totIndexVow = count($vowels) - 1;
for ($i = 0; $i < $wordLen; $i = $i + 2) {
// generate word with mix of vowels and consonants
$consonant = $consonants[Zend_Crypt_Math::randInteger(0, $totIndexCon, true)];
$vowel = $vowels[Zend_Crypt_Math::randInteger(0, $totIndexVow, true)];
$word .= $consonant . $vowel;
}
if (strlen($word) > $wordLen) {
$word = substr($word, 0, $wordLen);
}
return $word;
}
