100 lines
2.6 KiB
JavaScript
100 lines
2.6 KiB
JavaScript
// @flow
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import { parseURLParams } from '../config';
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import { toState } from '../redux';
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import { DEFAULT_SERVER_URL } from './constants';
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/**
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* Returns the effective value of a configuration/preference/setting by applying
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* a precedence among the values specified by JWT, URL, settings,
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* and config.
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*
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* @param {Object|Function} stateful - The redux state object or
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* {@code getState} function.
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* @param {string} propertyName - The name of the
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* configuration/preference/setting (property) to retrieve.
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* @param {{
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* config: boolean,
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* jwt: boolean,
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* settings: boolean,
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* urlParams: boolean
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* }} [sources] - A set/structure of {@code boolean} flags indicating the
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* configuration/preference/setting sources to consider/retrieve values from.
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* @returns {any}
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*/
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export function getPropertyValue(
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stateful: Object | Function,
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propertyName: string,
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sources?: Object
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) {
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// Default values don't play nicely with partial objects and we want to make
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// the function easy to use without exhaustively defining all flags:
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sources = { // eslint-disable-line no-param-reassign
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// Defaults:
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config: true,
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jwt: true,
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settings: true,
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urlParams: true,
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...sources
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};
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// Precedence: jwt -> urlParams -> settings -> config.
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const state = toState(stateful);
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// jwt
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if (sources.jwt) {
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const value = state['features/base/jwt'][propertyName];
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if (typeof value !== 'undefined') {
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return value[propertyName];
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}
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}
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// urlParams
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if (sources.urlParams) {
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const urlParams
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= parseURLParams(state['features/base/connection'].locationURL);
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const value = urlParams[`config.${propertyName}`];
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if (typeof value !== 'undefined') {
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return value;
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}
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}
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// settings
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if (sources.settings) {
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const value = state['features/base/settings'][propertyName];
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if (typeof value !== 'undefined') {
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return value;
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}
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}
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// config
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if (sources.config) {
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const value = state['features/base/config'][propertyName];
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if (typeof value !== 'undefined') {
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return value;
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}
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}
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return undefined;
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}
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/**
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* Gets the currently configured server URL.
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*
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* @param {Object|Function} stateful - The redux state object or
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* {@code getState} function.
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* @returns {string} - The currently configured server URL.
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*/
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export function getServerURL(stateful: Object | Function) {
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const state = toState(stateful);
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return state['features/base/settings'].serverURL || DEFAULT_SERVER_URL;
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}
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