IPS [bad] twitter oauth

twitter_oauth.php

<?php
	/**
	 * Send Request
	 *
	 * @param	string	$method			HTTP Method
	 * @param	string	$url			URL
	 * @param	array	$params			Parameters
	 * @param	string	$token			OAuth Token
	 * @return	\IPS\Http\Response
	 * @throws	\IPS\Http\Request\Exception
	 */
	public function sendRequest( $method, $url, $params=array(), $token='', $secret='' )
	{		
		/* Generate the OAUTH Authorization Header */
		$OAuthAuthorization = array_merge( array(
			'oauth_consumer_key'	=> $this->settings['consumer_key'],
			'oauth_nonce'			=> md5( \IPS\Login::generateRandomString() ),
			'oauth_signature_method'=> 'HMAC-SHA1',
			'oauth_timestamp'		=> time(),
			'oauth_version'			=> '1.0'
		) );
		
		if ( $token ) {
			$OAuthAuthorization['oauth_token'] = $token;
		}

		ksort( $OAuthAuthorization );

		$signatureBaseString = mb_strtoupper( $method ) . '&' . rawurlencode( $url ) . '&' . rawurlencode( http_build_query( $OAuthAuthorization ) );
		$signingKey = rawurlencode( $this->settings['consumer_secret'] ) . '&' . rawurlencode( $secret ?: $token );			
		$OAuthAuthorizationEncoded = array();
		foreach ( $OAuthAuthorization as $k => $v )
		{
			$OAuthAuthorizationEncoded[] = rawurlencode( $k ) . '="' . rawurlencode( $v ) . '"';
			
			if ( $k === 'oauth_nonce' )
			{
				$signature = base64_encode( hash_hmac( 'sha1', $signatureBaseString, $signingKey, TRUE ) );
				$OAuthAuthorizationEncoded[] = rawurlencode( 'oauth_signature' ) . '="' . rawurlencode( $signature ) . '"';
			}
		}
		$OAuthAuthorizationHeader = 'OAuth ' . implode( ', ', $OAuthAuthorizationEncoded );

		/* Send the request */
		return \IPS\Http\Url::external( $url )->request()->setHeaders( array( 'Authorization' => $OAuthAuthorizationHeader ) )->$method( $params );
	}
?>