131 lines
4.4 KiB
JavaScript
131 lines
4.4 KiB
JavaScript
// @flow
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import { jitsiLocalStorage } from '@jitsi/js-utils';
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import { APP_WILL_MOUNT } from '../app';
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import { getFeatureFlag } from '../flags/functions';
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import { addKnownDomains } from '../known-domains';
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import { MiddlewareRegistry } from '../redux';
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import { parseURIString } from '../util';
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import { SET_CONFIG } from './actionTypes';
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import { updateConfig } from './actions';
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import { _CONFIG_STORE_PREFIX } from './constants';
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/**
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* The middleware of the feature {@code base/config}.
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*
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* @param {Store} store - The redux store.
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* @private
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* @returns {Function}
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*/
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MiddlewareRegistry.register(store => next => action => {
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switch (action.type) {
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case APP_WILL_MOUNT:
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return _appWillMount(store, next, action);
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case SET_CONFIG:
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return _setConfig(store, next, action);
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}
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return next(action);
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});
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/**
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* Notifies the feature {@code base/config} that the {@link APP_WILL_MOUNT}
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* redux action is being {@code dispatch}ed in a specific redux store.
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*
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* @param {Store} store - The redux store in which the specified {@code action}
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* is being dispatched.
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* @param {Dispatch} next - The redux {@code dispatch} function to dispatch the
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* specified {@code action} in the specified {@code store}.
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* @param {Action} action - The redux action which is being {@code dispatch}ed
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* in the specified {@code store}.
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* @private
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* @returns {*} The return value of {@code next(action)}.
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*/
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function _appWillMount(store, next, action) {
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const result = next(action);
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// It's an opportune time to transfer the feature base/config's knowledge
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// about "known domains" (which is local to the feature) to the feature
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// base/known-domains (which is global to the app).
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//
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// XXX Since the feature base/config predates the feature calendar-sync and,
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// consequently, the feature known-domains, it's possible for the feature
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// base/config to know of domains which the feature known-domains is yet to
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// discover.
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const prefix = `${_CONFIG_STORE_PREFIX}/`;
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const knownDomains = [];
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for (let i = 0; /* localStorage.key(i) */; ++i) {
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const key = jitsiLocalStorage.key(i);
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if (key) {
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let baseURL;
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if (key.startsWith(prefix)
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&& (baseURL = key.substring(prefix.length))) {
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const uri = parseURIString(baseURL);
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let host;
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uri && (host = uri.host) && knownDomains.push(host);
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}
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} else {
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break;
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}
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}
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knownDomains.length && store.dispatch(addKnownDomains(knownDomains));
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return result;
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}
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/**
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* Notifies the feature {@code base/config} that the {@link SET_CONFIG} redux
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* action is being {@code dispatch}ed in a specific redux store.
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*
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* @param {Store} store - The redux store in which the specified {@code action}
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* is being dispatched.
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* @param {Dispatch} next - The redux {@code dispatch} function to dispatch the
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* specified {@code action} in the specified {@code store}.
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* @param {Action} action - The redux action which is being {@code dispatch}ed
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* in the specified {@code store}.
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* @private
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* @returns {*} The return value of {@code next(action)}.
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*/
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function _setConfig({ dispatch, getState }, next, action) {
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// The reducer is doing some alterations to the config passed in the action,
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// so make sure it's the final state by waiting for the action to be
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// reduced.
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const result = next(action);
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const state = getState();
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// Update the config with user defined settings.
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const settings = state['features/base/settings'];
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const config = {};
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if (typeof settings.disableP2P !== 'undefined') {
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config.p2p = { enabled: !settings.disableP2P };
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}
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const resolutionFlag = getFeatureFlag(state, 'resolution');
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if (typeof resolutionFlag !== 'undefined') {
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config.resolution = resolutionFlag;
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}
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dispatch(updateConfig(config));
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// FIXME On Web we rely on the global 'config' variable which gets altered
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// multiple times, before it makes it to the reducer. At some point it may
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// not be the global variable which is being modified anymore due to
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// different merge methods being used along the way. The global variable
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// must be synchronized with the final state resolved by the reducer.
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if (typeof window.config !== 'undefined') {
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window.config = state['features/base/config'];
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}
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return result;
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}
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