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app/libs/login.js

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+import store from "../store";
+import Cache from '../utils/cache';
+// #ifdef H5 || APP-PLUS
+import { isWeixin } from "../utils";
+import auth from './wechat';
+// #endif
+
+import { LOGIN_STATUS, USER_INFO, EXPIRES_TIME, STATE_R_KEY} from './../config/cache';
+
+function prePage(){
+	let pages = getCurrentPages();
+	let prePage = pages[pages.length - 1];
+	return prePage.route;
+}
+
+export function toLogin(push, pathLogin) {
+	store.commit("LOGOUT");
+	let path = prePage();
+	// #ifdef H5
+	path = location.href;
+	// #endif
+	if(!pathLogin)
+		pathLogin = '/page/users/login/index'
+	Cache.set('login_back_url',path);
+	// #ifdef H5 || APP-PLUS
+	if (isWeixin()) {
+		auth.oAuth();
+	} else {
+		if (path !== pathLogin) {
+		 push ? uni.navigateTo({
+		 	url:'/pages/users/login/index'
+		 }) : uni.reLaunch({
+		 	url: '/pages/users/login/index'
+		 });
+		}
+	}
+	// #endif
+}
+
+
+export function checkLogin()
+{
+	let token = Cache.get(LOGIN_STATUS);
+	let expiresTime = Cache.get(EXPIRES_TIME);
+	let newTime = Math.round(new Date() / 1000);
+	if (expiresTime < newTime || !token){
+		Cache.clear(LOGIN_STATUS);
+		Cache.clear(EXPIRES_TIME);
+		Cache.clear(USER_INFO);
+		Cache.clear(STATE_R_KEY);
+		return false;
+	}else{
+		store.commit('UPDATE_LOGIN',token);
+		let userInfo = Cache.get(USER_INFO,true);
+		if(userInfo){
+			store.commit('UPDATE_USERINFO',userInfo);
+		}
+		return true;
+	}
+
+}