all files / src/network/remote/ GirderClient.js

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36.11% Branches 26/72
44.68% Functions 21/47
54.49% Lines 97/178
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'use strict';
 
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.build = build;
 
var _axios = require('axios');
 
var _axios2 = _interopRequireDefault(_axios);
 
var _monologue = require('monologue.js');
 
var _monologue2 = _interopRequireDefault(_monologue);
 
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
// ----------------------------------------------------------------------------
var AUTH_CHANGE_TOPIC = 'girder.auth.change';
var BUSY_TOPIC = 'girder.busy';
var PROGRESS_TOPIC = 'girder.progress';
var EVENT_TOPIC = 'girder.notification';
 
var Observable = function Observable() {
  _classCallCheck(this, Observable);
};
 
_monologue2.default.mixInto(Observable);
 
var _LOGIN_PROMISE = function _LOGIN_PROMISE() {
  return Promise.resolve('login');
};
var _LOGOUT_PROMISE = function _LOGOUT_PROMISE() {
  return Promise.reject('logout');
};
 
// ----------------------------------------------------------------------------
 
function encodeQueryAsString() {
  var query = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
 
  var params = Object.keys(query).map(function (name) {
    return [encodeURIComponent(name), encodeURIComponent(query[name])].join('=');
  });
  return params.length ? '?' + params.join('&') : '';
}
 
// ----------------------------------------------------------------------------
 
function filterQuery() {
  var query = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
 
  var out = {};
 
  for (var _len = arguments.length, keys = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    keys[_key - 1] = arguments[_key];
  }
 
  keys.forEach(function (key) {
    if (query[key] !== undefined && query[key] !== null) {
      out[key] = query[key];
    }
  });
  return out;
}
 
// ----------------------------------------------------------------------------
 
function mustContain() {
  var object = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
 
  var missingKeys = [];
  var promise = void 0;
 
  for (var _len2 = arguments.length, keys = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
    keys[_key2 - 1] = arguments[_key2];
  }
 
  keys.forEach(function (key) {
    if (object[key] === undefined) {
      missingKeys.push(key);
    }
  });
  if (missingKeys.length === 0) {
    missingKeys = undefined;
    promise = Promise.resolve(true);
  } else {
    promise = Promise.reject('Missing keys ' + missingKeys.join(', '));
  }
 
  return {
    missingKeys: missingKeys,
    promise: promise
  };
}
 
// ----------------------------------------------------------------------------
 
function build() {
  var config = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : window.location;
 
  var userData = void 0;
  var token = void 0;
  var loginPromise = void 0;
  var isAuthenticated = false;
  var eventSource = null;
  var busyCounter = 0;
 
  var client = {}; // Must be const otherwise the created closure will fail
  var notification = new Observable();
  var idle = function idle() {
    busyCounter -= 1;
    notification.emit(BUSY_TOPIC, busyCounter);
  };
  var busy = function busy(promise) {
    busyCounter += 1;
    notification.emit(BUSY_TOPIC, busyCounter);
    promise.then(idle);
    return promise;
  };
  var protocol = config.protocol,
      hostname = config.hostname,
      port = config.port,
      _config$basepath = config.basepath,
      basepath = _config$basepath === undefined ? '/api/v1' : _config$basepath;
 
  var baseURL = protocol + '//' + hostname + ':' + port + basepath;
  var connectToNotificationStream = function connectToNotificationStream() {
    if (EventSource) {
      eventSource = new EventSource(baseURL + '/notification/stream');
      eventSource.onmessage = function (e) {
        var parsed = JSON.parse(e.data);
        notification.emit(EVENT_TOPIC, parsed);
      };
 
      eventSource.onerror = function (e) {
        // Wait 2 seconds if the browser hasn't reconnected then reinitialize.
        setTimeout(function () {
          if (eventSource && eventSource.readyState === EventSource.CLOSED) {
            connectToNotificationStream();
          } else {
            eventSource.close();
            eventSource = null;
            connectToNotificationStream();
          }
        }, 2000);
      };
    }
  };
 
  function extractLocalToken() {
    try {
      return document.cookie.split('girderToken=')[1].split(';')[0].trim();
    } catch (e) {
      return undefined;
    }
  }
  function updateGirderInstance() {
    var timeout = 60000;
    var headers = {};
 
    Iif (token) {
      headers['Girder-Token'] = token;
    }
 
    client._ = {};
 
    var methods = _axios2.default.create({
      baseURL: baseURL,
      timeout: timeout,
      headers: headers
    });
 
    // wrap xhr requests so we can give a cancel to each,
    // we need to make a new cancel token for each request.
    ['get', 'delete', 'head'].forEach(function (req) {
      client._[req] = function (url, conf) {
        var cSource = _axios.CancelToken.source();
        client.cancel = cSource.cancel;
        return methods[req](url, Object.assign({}, conf, {
          cancelToken: cSource.token
        }));
      };
    });
 
    ['post', 'put', 'patch'].forEach(function (req) {
      client._[req] = function (url, data, conf) {
        var cSource = _axios.CancelToken.source();
        client.cancel = cSource.cancel;
        return methods[req](url, data, Object.assign({}, conf, {
          cancelToken: cSource.token
        }));
      };
    });
  }
  function updateAuthenticationState(state) {
    if (isAuthenticated !== !!state) {
      // Clear cache data if not logged-in
      if (!state) {
        userData = undefined;
        token = undefined;
        // Update userData for external modules
        client.user = userData;
        client.token = undefined;
      }
 
      // Update internal state
      isAuthenticated = !!state;
      updateGirderInstance();
 
      // Broadcast information
      /* eslint-disable babel/new-cap */
      loginPromise = state ? _LOGIN_PROMISE() : _LOGOUT_PROMISE();
      /* eslint-enable babel/new-cap */
      notification.emit(AUTH_CHANGE_TOPIC, isAuthenticated);
      if (isAuthenticated && eventSource === null) {
        connectToNotificationStream();
      }
    }
  }
  function progress(id, current) {
    var total = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
 
    notification.emit(PROGRESS_TOPIC, {
      id: id,
      current: current,
      total: total
    });
  }
 
  // Fill up public object
  var publicObject = {
    login: function login(username, password) {
      var auth = {
        username: username,
        password: password
      };
      return new Promise(function (accept, reject) {
        busy(client._.get('/user/authentication', { auth: auth }).then(function (resp) {
          token = resp.data.authToken.token;
          userData = resp.data.user;
 
          // Update userData for external modules
          client.user = userData;
          client.token = token;
 
          updateAuthenticationState(true);
          accept();
        }).catch(function (err) {
          updateAuthenticationState(false);
          reject(err);
        }));
      });
    },
    logout: function logout() {
      return busy(client._.delete('/user/authentication').then(function (ok) {
        updateAuthenticationState(false);
        if (document && document.cookie) {
          document.cookie = 'Girder-Token=;expires=Thu, 01 Jan 1970 00:00:01 GMT;';
        }
      }, function (ko) {
        console.log('loggout error', ko);
      }));
    },
    me: function me() {
      return busy(client._.get('/user/me'));
    },
    isLoggedIn: function isLoggedIn() {
      return loginPromise;
    },
    getLoggedInUser: function getLoggedInUser() {
      return userData;
    },
    onAuthChange: function onAuthChange(callback) {
      return notification.on(AUTH_CHANGE_TOPIC, callback);
    },
    onBusy: function onBusy(callback) {
      return notification.on(BUSY_TOPIC, callback);
    },
    onProgress: function onProgress(callback) {
      return notification.on(PROGRESS_TOPIC, callback);
    },
    onEvent: function onEvent(callback) {
      return notification.on(EVENT_TOPIC, callback);
    },
    destroy: function destroy() {
      notification.off();
    },
    cancel: function cancel() {
      if (client.cancel) {
        client.cancel('request was canceled');
      }
    }
  };
 
  // Try to extract token from
  loginPromise = new Promise(function (accept, reject) {
    token = config.token || extractLocalToken();
    updateGirderInstance();
    Iif (token) {
      publicObject.me().then(function (resp) {
        if (!resp.data) {
          updateAuthenticationState(false);
          userData = null;
          reject(resp);
          return;
        }
        // Update userData for external modules
        userData = resp.data;
        client.user = userData;
        client.token = token;
        updateAuthenticationState(true);
        accept();
      }).catch(function (errResp) {
        updateAuthenticationState(false);
        reject(errResp);
      });
    } else {
      reject('No token');
    }
  });
 
  // Expend client
  client.baseURL = baseURL;
  client.cancel = null;
 
  // Add extensions
  var spec = {
    busy: busy,
    client: client,
    encodeQueryAsString: encodeQueryAsString,
    filterQuery: filterQuery,
    mustContain: mustContain,
    notification: notification,
    progress: progress
  };
 
  function processExtension(ext) {
    if (Array.isArray(ext)) {
      ext.forEach(processExtension);
    } else {
      var obj = ext(spec);
      Object.keys(obj).forEach(function (key) {
        publicObject[key] = obj[key];
      });
    }
  }
 
  for (var _len3 = arguments.length, extensions = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
    extensions[_key3 - 1] = arguments[_key3];
  }
 
  processExtension(extensions);
 
  // Return the newly composed object
  // if karma, return an unfrozen version so we can spy on it
  /* global KARMA_TEST_RUNNER */
  Eif (KARMA_TEST_RUNNER) {
    return publicObject;
  }
  return Object.freeze(publicObject);
}
 
exports.default = {
  build: build
};