Proyectos de Subversion Moodle

<?php

require_once("OAuth.php");

require_once("TrivialOAuthDataStore.php");

function getLastOAuthBodyBaseString() {

    global $LastOAuthBodyBaseString;

    return $LastOAuthBodyBaseString;

}

function handleOAuthBodyPOST($oauth_consumer_key, $oauth_consumer_secret)

{

    $request_headers = OAuthUtil::get_headers();

    // print_r($request_headers);

    // Must reject application/x-www-form-urlencoded

    if ($request_headers['Content-type'] == 'application/x-www-form-urlencoded' ) {

        throw new Exception("OAuth request body signing must not use application/x-www-form-urlencoded");

    }

    if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {

        $header_parameters = OAuthUtil::split_header($request_headers['Authorization']);

        // echo("HEADER PARMS=\n");

        // print_r($header_parameters);

        $oauth_body_hash = $header_parameters['oauth_body_hash'];

        // echo("OBH=".$oauth_body_hash."\n");

    }

    if ( ! isset($oauth_body_hash)  ) {

        throw new Exception("OAuth request body signing requires oauth_body_hash body");

    }

    // Verify the message signature

    $store = new TrivialOAuthDataStore();

    $store->add_consumer($oauth_consumer_key, $oauth_consumer_secret);

    $server = new OAuthServer($store);

    $method = new OAuthSignatureMethod_HMAC_SHA1();

    $server->add_signature_method($method);

    $request = OAuthRequest::from_request();

    global $LastOAuthBodyBaseString;

    $LastOAuthBodyBaseString = $request->get_signature_base_string();

    // echo($LastOAuthBodyBaseString."\n");

    try {

        $server->verify_request($request);

    } catch (Exception $e) {

        $message = $e->getMessage();

        throw new Exception("OAuth signature failed: " . $message);

    }

    $postdata = file_get_contents('php://input');

    // echo($postdata);

    $hash = base64_encode(sha1($postdata, TRUE));

    if ( $hash != $oauth_body_hash ) {

        throw new Exception("OAuth oauth_body_hash mismatch");

    }

    return $postdata;

}

function sendOAuthBodyPOST($method, $endpoint, $oauth_consumer_key, $oauth_consumer_secret, $content_type, $body)

{

    global $CFG;

    require_once($CFG->dirroot . '/lib/filelib.php');

    $hash = base64_encode(sha1($body, TRUE));

    $parms = array('oauth_body_hash' => $hash);

    $test_token = '';

    $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();

    $test_consumer = new OAuthConsumer($oauth_consumer_key, $oauth_consumer_secret, NULL);

    $acc_req = OAuthRequest::from_consumer_and_token($test_consumer, $test_token, $method, $endpoint, $parms);

    $acc_req->sign_request($hmac_method, $test_consumer, $test_token);

    // Pass this back up "out of band" for debugging

    global $LastOAuthBodyBaseString;

    $LastOAuthBodyBaseString = $acc_req->get_signature_base_string();

    // echo($LastOAuthBodyBaseString."\m");

    $headers = array();

    $headers[] = $acc_req->to_header();

    $headers[] = "Content-type: " . $content_type;

    $curl = new curl();

    $curl->setHeader($headers);

    $response =  $curl->post($endpoint, $body);

    return $response;

}

function sendOAuthParamsPOST($method, $endpoint, $oauth_consumer_key, $oauth_consumer_secret, $content_type, $params)

{

    if (is_array($params)) {

        $body = http_build_query($params, '', '&');

    } else {

        $body = $params;

    }

    $hash = base64_encode(sha1($body, TRUE));

    $parms = $params;

    $parms['oauth_body_hash'] = $hash;

    $test_token = '';

    $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();

    $test_consumer = new OAuthConsumer($oauth_consumer_key, $oauth_consumer_secret, NULL);

    $acc_req = OAuthRequest::from_consumer_and_token($test_consumer, $test_token, $method, $endpoint, $parms);

    $acc_req->sign_request($hmac_method, $test_consumer, $test_token);

    // Pass this back up "out of band" for debugging

    global $LastOAuthBodyBaseString;

    $LastOAuthBodyBaseString = $acc_req->get_signature_base_string();

    // echo($LastOAuthBodyBaseString."\m");

    $header = $acc_req->to_header();

    $header = $header . "\r\nContent-type: " . $content_type . "\r\n";

    $params = array('http' => array(

        'method' => 'POST',

        'content' => $body,

    'header' => $header

        ));

    $ctx = stream_context_create($params);

    $fp = @fopen($endpoint, 'rb', false, $ctx);

    if (!$fp) {

        $message = "(No error message provided.)";

        if ($error = error_get_last()) {

            $message = $error["message"];

        }

        throw new \Exception("Problem with $endpoint, $message");

    }

    $response = @stream_get_contents($fp);

    if ($response === false) {

        $message = "(No error message provided.)";

        if ($error = error_get_last()) {

            $message = $error["message"];

        }

        throw new \Exception("Problem reading data from $endpoint, $message");

    }

    return $response;

}

?>