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examples/demoserver/u2f-api.js  view on Meta::CPAN

 * available mechanisms.
 * @param {function((MessagePort|u2f.WrappedChromeRuntimePort_))} callback
 */
u2f.getMessagePort = function(callback) {
  if (typeof chrome != 'undefined' && chrome.runtime) {
    // The actual message here does not matter, but we need to get a reply
    // for the callback to run. Thus, send an empty signature request
    // in order to get a failure response.
    var msg = {
        type: u2f.MessageTypes.U2F_SIGN_REQUEST,
        signRequests: []
    };
    chrome.runtime.sendMessage(u2f.EXTENSION_ID, msg, function() {
      if (!chrome.runtime.lastError) {
        // We are on a whitelisted origin and can talk directly
        // with the extension.
        u2f.getChromeRuntimePort_(callback);
      } else {
        // chrome.runtime was available, but we couldn't message
        // the extension directly, use iframe
        u2f.getIframePort_(callback);
      }
    });
  } else if (u2f.isAndroidChrome_()) {
    u2f.getAuthenticatorPort_(callback);
  } else if (u2f.isIosChrome_()) {
    u2f.getIosPort_(callback);
  } else {
    // chrome.runtime was not available at all, which is normal
    // when this origin doesn't have access to any extensions.
    u2f.getIframePort_(callback);
  }
};

/**
 * Detect chrome running on android based on the browser's useragent.
 * @private
 */
u2f.isAndroidChrome_ = function() {
  var userAgent = navigator.userAgent;
  return userAgent.indexOf('Chrome') != -1 &&
  userAgent.indexOf('Android') != -1;
};

/**
 * Detect chrome running on iOS based on the browser's platform.
 * @private
 */
u2f.isIosChrome_ = function() {
  return $.inArray(navigator.platform, ["iPhone", "iPad", "iPod"]) > -1;
};

/**
 * Connects directly to the extension via chrome.runtime.connect.
 * @param {function(u2f.WrappedChromeRuntimePort_)} callback
 * @private
 */
u2f.getChromeRuntimePort_ = function(callback) {
  var port = chrome.runtime.connect(u2f.EXTENSION_ID,
      {'includeTlsChannelId': true});
  setTimeout(function() {
    callback(new u2f.WrappedChromeRuntimePort_(port));
  }, 0);
};

/**
 * Return a 'port' abstraction to the Authenticator app.
 * @param {function(u2f.WrappedAuthenticatorPort_)} callback
 * @private
 */
u2f.getAuthenticatorPort_ = function(callback) {
  setTimeout(function() {
    callback(new u2f.WrappedAuthenticatorPort_());
  }, 0);
};

/**
 * Return a 'port' abstraction to the iOS client app.
 * @param {function(u2f.WrappedIosPort_)} callback
 * @private
 */
u2f.getIosPort_ = function(callback) {
  setTimeout(function() {
    callback(new u2f.WrappedIosPort_());
  }, 0);
};

/**
 * A wrapper for chrome.runtime.Port that is compatible with MessagePort.
 * @param {Port} port
 * @constructor
 * @private
 */
u2f.WrappedChromeRuntimePort_ = function(port) {
  this.port_ = port;
};

/**
 * Format and return a sign request compliant with the JS API version supported by the extension.
 * @param {Array<u2f.SignRequest>} signRequests
 * @param {number} timeoutSeconds
 * @param {number} reqId
 * @return {Object}
 */
u2f.formatSignRequest_ =
  function(appId, challenge, registeredKeys, timeoutSeconds, reqId) {
  if (js_api_version === undefined || js_api_version < 1.1) {
    // Adapt request to the 1.0 JS API
    var signRequests = [];
    for (var i = 0; i < registeredKeys.length; i++) {
      signRequests[i] = {
          version: registeredKeys[i].version,
          challenge: challenge,
          keyHandle: registeredKeys[i].keyHandle,
          appId: appId
      };
    }
    return {
      type: u2f.MessageTypes.U2F_SIGN_REQUEST,
      signRequests: signRequests,
      timeoutSeconds: timeoutSeconds,
      requestId: reqId
    };
  }
  // JS 1.1 API
  return {
    type: u2f.MessageTypes.U2F_SIGN_REQUEST,
    appId: appId,
    challenge: challenge,
    registeredKeys: registeredKeys,
    timeoutSeconds: timeoutSeconds,
    requestId: reqId
  };
};

/**
 * Format and return a register request compliant with the JS API version supported by the extension..
 * @param {Array<u2f.SignRequest>} signRequests
 * @param {Array<u2f.RegisterRequest>} signRequests
 * @param {number} timeoutSeconds
 * @param {number} reqId
 * @return {Object}
 */