feat: implement long-lived sessions

frontend/package-lock.json

@@ -2964,6 +2964,14 @@
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.10.1.tgz",
       "integrity": "sha512-zg7Hz2k5lI8kb7U32998pRRFin7zJlkfezGJjUc2heaD4Pw2wObakCDVzkKztTm/Ln7eiVvYsjqak0Ed4LkMDA=="
     },
+    "axios": {
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.21.0.tgz",
+      "integrity": "sha512-fmkJBknJKoZwem3/IKSSLpkdNXZeBu5Q7GA/aRsr2btgrptmSCxi2oFjZHqGdK9DoTil9PIHlPIZw2EcRJXRvw==",
+      "requires": {
+        "follow-redirects": "^1.10.0"
+      }
+    },
     "axobject-query": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-2.2.0.tgz",

frontend/package.json

@@ -19,6 +19,7 @@
     "@types/react-router-dom": "5.1.5",
     "@types/recharts": "1.8.15",
     "autoprefixer": "9.8.6",
+    "axios": "^0.21.0",
     "date-fns": "2.16.1",
     "npm-run-all": "4.1.5",
     "postcss-cli": "7.1.1",

frontend/src/api/api.ts

@@ -1,5 +1,5 @@
+import { AxiosInstance } from "axios";
 import { formatISO, parseISO } from "date-fns";
-import { qs } from "../util/queryString";
 import { Listen } from "./entities/listen";
 import { ListenReportItem } from "./entities/listen-report-item";
 import { ListenReportOptions } from "./entities/listen-report-options";
@@ -7,58 +7,18 @@ import { Pagination } from "./entities/pagination";
 import { PaginationOptions } from "./entities/pagination-options";
 import { TopArtistsItem } from "./entities/top-artists-item";
 import { TopArtistsOptions } from "./entities/top-artists-options";
-import { User } from "./entities/user";
 
 export class UnauthenticatedError extends Error {}
 
-const getToken = (): string => {
-  const cookieValue = document.cookie.replace(
-    /(?:(?:^|.*;\s*)listory_access_token\s*=\s*([^;]*).*$)|^.*$/,
-    "$1"
-  );
-
-  return cookieValue;
-};
-
-const getDefaultHeaders = (): Headers => {
-  const headers = new Headers();
-
-  headers.append("Content-Type", "application/json");
-  headers.append("Authorization", `Bearer ${getToken()}`);
-
-  return headers;
-};
-
-export const getUsersMe = async (): Promise<User> => {
-  const res = await fetch(`/api/v1/users/me`, { headers: getDefaultHeaders() });
-
-  switch (res.status) {
-    case 200: {
-      break;
-    }
-    case 401: {
-      throw new UnauthenticatedError(`No token or token expired`);
-    }
-    default: {
-      throw new Error(`Unable to getUsersMe: ${res.status}`);
-    }
-  }
-
-  const user: User = await res.json();
-  return user;
-};
-
 export const getRecentListens = async (
-  options: PaginationOptions = { page: 1, limit: 10 }
+  options: PaginationOptions = { page: 1, limit: 10 },
+  client: AxiosInstance
 ): Promise<Pagination<Listen>> => {
   const { page, limit } = options;
 
-  const res = await fetch(
-    `/api/v1/listens?${qs({ page: page.toString(), limit: limit.toString() })}`,
-    {
-      headers: getDefaultHeaders(),
-    }
-  );
+  const res = await client.get<Pagination<Listen>>(`/api/v1/listens`, {
+    params: { page, limit },
+  });
 
   switch (res.status) {
     case 200: {
@@ -72,27 +32,27 @@ export const getRecentListens = async (
     }
   }
 
-  const listens: Pagination<Listen> = await res.json();
-  return listens;
+  return res.data;
 };
 
 export const getListensReport = async (
-  options: ListenReportOptions
+  options: ListenReportOptions,
+  client: AxiosInstance
 ): Promise<ListenReportItem[]> => {
   const {
     timeFrame,
     time: { timePreset, customTimeStart, customTimeEnd },
   } = options;
 
-  const res = await fetch(
-    `/api/v1/reports/listens?${qs({
-      timeFrame,
-      timePreset,
-      customTimeStart: formatISO(customTimeStart),
-      customTimeEnd: formatISO(customTimeEnd),
-    })}`,
+  const res = await client.get<{ items: { count: number; date: string }[] }>(
+    `/api/v1/reports/listens`,
     {
-      headers: getDefaultHeaders(),
+      params: {
+        timeFrame,
+        timePreset,
+        customTimeStart: formatISO(customTimeStart),
+        customTimeEnd: formatISO(customTimeEnd),
+      },
     }
   );
 
@@ -108,25 +68,28 @@ export const getListensReport = async (
     }
   }
 
-  const rawItems: { count: number; date: string }[] = (await res.json()).items;
+  const {
+    data: { items: rawItems },
+  } = res;
   return rawItems.map(({ count, date }) => ({ count, date: parseISO(date) }));
 };
 
 export const getTopArtists = async (
-  options: TopArtistsOptions
+  options: TopArtistsOptions,
+  client: AxiosInstance
 ): Promise<TopArtistsItem[]> => {
   const {
     time: { timePreset, customTimeStart, customTimeEnd },
   } = options;
 
-  const res = await fetch(
-    `/api/v1/reports/top-artists?${qs({
-      timePreset,
-      customTimeStart: formatISO(customTimeStart),
-      customTimeEnd: formatISO(customTimeEnd),
-    })}`,
+  const res = await client.get<{ items: TopArtistsItem[] }>(
+    `/api/v1/reports/top-artists`,
     {
-      headers: getDefaultHeaders(),
+      params: {
+        timePreset,
+        customTimeStart: formatISO(customTimeStart),
+        customTimeEnd: formatISO(customTimeEnd),
+      },
     }
   );
 
@@ -142,6 +105,8 @@ export const getTopArtists = async (
     }
   }
 
-  const items: TopArtistsItem[] = (await res.json()).items;
+  const {
+    data: { items },
+  } = res;
   return items;
 };

frontend/src/api/auth-api.ts

@@ -0,0 +1,56 @@
+/*
+ * These calls are seperate from the others because they are only
+ * used in the useAuth hook which is used before the useApiClient hook.
+ *
+ * They do not use the apiClient/axios.
+ */
+
+import { UnauthenticatedError } from "./api";
+import { RefreshTokenResponse } from "./entities/refresh-token-response";
+import { User } from "./entities/user";
+
+export const getUsersMe = async (accessToken: string): Promise<User> => {
+  const res = await fetch(`/api/v1/users/me`, {
+    headers: new Headers({
+      "Content-Type": "application/json",
+      Authorization: `Bearer ${accessToken}`,
+    }),
+  });
+
+  switch (res.status) {
+    case 200: {
+      break;
+    }
+    case 401: {
+      throw new UnauthenticatedError(`No token or token expired`);
+    }
+    default: {
+      throw new Error(`Unable to getUsersMe: ${res.status}`);
+    }
+  }
+
+  const user: User = await res.json();
+  return user;
+};
+
+export const postAuthTokenRefresh = async (): Promise<RefreshTokenResponse> => {
+  const res = await fetch(`/api/v1/auth/token/refresh`, {
+    method: "POST",
+    headers: new Headers({ "Content-Type": "application/json" }),
+  });
+
+  switch (res.status) {
+    case 201: {
+      break;
+    }
+    case 401: {
+      throw new UnauthenticatedError(`No Refresh Token or token expired`);
+    }
+    default: {
+      throw new Error(`Unable to postAuthTokenRefresh: ${res.status}`);
+    }
+  }
+
+  const refreshTokenResponse: RefreshTokenResponse = await res.json();
+  return refreshTokenResponse;
+};

frontend/src/api/entities/refresh-token-response.ts

@@ -0,0 +1,3 @@
+export interface RefreshTokenResponse {
+  accessToken: string;
+}

frontend/src/components/RecentListens.tsx

@@ -1,8 +1,8 @@
 import { format, formatDistanceToNow } from "date-fns";
-import React, { useEffect, useState, useMemo } from "react";
+import React, { useEffect, useMemo, useState } from "react";
 import { Redirect } from "react-router-dom";
-import { getRecentListens } from "../api/api";
 import { Listen } from "../api/entities/listen";
+import { useRecentListens } from "../hooks/use-api";
 import { useAuth } from "../hooks/use-auth";
 import { ReloadIcon } from "../icons/Reload";
 import { getPaginationItems } from "../util/getPaginationItems";
@@ -14,35 +14,18 @@ export const RecentListens: React.FC = () => {
 
   const [page, setPage] = useState(1);
   const [totalPages, setTotalPages] = useState(1);
-  const [listens, setListens] = useState<Listen[]>([]);
-  const [isLoading, setIsLoading] = useState(true);
 
-  const loadListensForPage = useMemo(
-    () => async () => {
-      setIsLoading(true);
+  const options = useMemo(() => ({ page, limit: LISTENS_PER_PAGE }), [page]);
 
-      try {
-        const listensFromApi = await getRecentListens({
-          page,
-          limit: LISTENS_PER_PAGE,
-        });
-
-        if (totalPages !== listensFromApi.meta.totalPages) {
-          setTotalPages(listensFromApi.meta.totalPages);
-        }
-        setListens(listensFromApi.items);
-      } catch (err) {
-        console.error("Error while fetching recent listens:", err);
-      } finally {
-        setIsLoading(false);
-      }
-    },
-    [page, totalPages, setIsLoading, setTotalPages, setListens]
+  const { recentListens, paginationMeta, isLoading, reload } = useRecentListens(
+    options
   );
 
   useEffect(() => {
-    loadListensForPage();
-  }, [loadListensForPage]);
+    if (paginationMeta && totalPages !== paginationMeta.totalPages) {
+      setTotalPages(paginationMeta.totalPages);
+    }
+  }, [totalPages, paginationMeta]);
 
   if (!user) {
     return <Redirect to="/" />;
@@ -55,7 +38,7 @@ export const RecentListens: React.FC = () => {
           <p className="text-2xl font-normal text-gray-700">Recent listens</p>
           <button
             className="flex-shrink-0 mx-2 bg-transparent hover:bg-green-500 text-green-500 hover:text-white font-semibold py-2 px-4 border border-green-500 hover:border-transparent rounded"
-            onClick={loadListensForPage}
+            onClick={reload}
           >
             <ReloadIcon className="w-5 h-5 fill-current" />
           </button>
@@ -66,14 +49,14 @@ export const RecentListens: React.FC = () => {
               <span>Loading Listens</span>
             </div>
           )}
-          {listens.length === 0 && (
+          {recentListens.length === 0 && (
             <div>
               <p>Could not find any listens!</p>
             </div>
           )}
-          {listens.length > 0 && (
+          {recentListens.length > 0 && (
             <div className="table-auto my-2 w-full text-gray-700">
-              {listens.map((listen) => (
+              {recentListens.map((listen) => (
                 <ListenItem listen={listen} key={listen.id} />
               ))}
             </div>

frontend/src/components/ReportListens.tsx

@@ -11,12 +11,11 @@ import {
   XAxis,
   YAxis,
 } from "recharts";
-import { getListensReport } from "../api/api";
 import { ListenReportItem } from "../api/entities/listen-report-item";
 import { ListenReportOptions } from "../api/entities/listen-report-options";
 import { TimeOptions } from "../api/entities/time-options";
 import { TimePreset } from "../api/entities/time-preset.enum";
-import { useAsync } from "../hooks/use-async";
+import { useListensReport } from "../hooks/use-api";
 import { useAuth } from "../hooks/use-auth";
 import { ReportTimeOptions } from "./ReportTimeOptions";
 
@@ -33,12 +32,12 @@ export const ReportListens: React.FC = () => {
     customTimeEnd: new Date(),
   });
 
-  const fetchData = useMemo(
-    () => () => getListensReport({ timeFrame, time: timeOptions }),
-    [timeFrame, timeOptions]
-  );
+  const reportOptions = useMemo(() => ({ timeFrame, time: timeOptions }), [
+    timeFrame,
+    timeOptions,
+  ]);
 
-  const { value: report, pending: isLoading } = useAsync(fetchData, []);
+  const { report, isLoading } = useListensReport(reportOptions);
 
   const reportHasItems = !isLoading && report.length !== 0;
 

frontend/src/components/ReportTopArtists.tsx

@@ -1,15 +1,11 @@
 import React, { useMemo, useState } from "react";
 import { Redirect } from "react-router-dom";
-import { getTopArtists } from "../api/api";
 import { TimeOptions } from "../api/entities/time-options";
 import { TimePreset } from "../api/entities/time-preset.enum";
-import { TopArtistsItem } from "../api/entities/top-artists-item";
-import { useAsync } from "../hooks/use-async";
+import { useTopArtists } from "../hooks/use-api";
 import { useAuth } from "../hooks/use-auth";
 import { ReportTimeOptions } from "./ReportTimeOptions";
 
-const INITIAL_REPORT_DATA: TopArtistsItem[] = [];
-
 export const ReportTopArtists: React.FC = () => {
   const { user } = useAuth();
 
@@ -19,16 +15,16 @@ export const ReportTopArtists: React.FC = () => {
     customTimeEnd: new Date(),
   });
 
-  const fetchData = useMemo(() => () => getTopArtists({ time: timeOptions }), [
-    timeOptions,
-  ]);
-
-  const { value: report, pending: isLoading } = useAsync(
-    fetchData,
-    INITIAL_REPORT_DATA
+  const options = useMemo(
+    () => ({
+      time: timeOptions,
+    }),
+    [timeOptions]
   );
 
-  const reportHasItems = !isLoading && report.length !== 0;
+  const { topArtists, isLoading } = useTopArtists(options);
+
+  const reportHasItems = !isLoading && topArtists.length !== 0;
 
   if (!user) {
     return <Redirect to="/" />;
@@ -56,7 +52,7 @@ export const ReportTopArtists: React.FC = () => {
             </div>
           )}
           {reportHasItems &&
-            report.map(({ artist, count }) => (
+            topArtists.map(({ artist, count }) => (
               <div key={artist.id}>
                 {count} - {artist.name}
               </div>

frontend/src/hooks/use-api-client.tsx

@@ -0,0 +1,95 @@
+import axios, { AxiosInstance, AxiosRequestConfig, AxiosResponse } from "axios";
+import React, {
+  createContext,
+  useContext,
+  useEffect,
+  useRef,
+  useState,
+} from "react";
+import { useAuth } from "./use-auth";
+
+interface ApiClientContext {
+  client: AxiosInstance;
+}
+
+const apiClientContext = createContext<ApiClientContext>(
+  (undefined as any) as ApiClientContext
+);
+
+export const ProvideApiClient: React.FC = ({ children }) => {
+  const auth = useProvideApiClient();
+
+  return (
+    <apiClientContext.Provider value={auth}>
+      {children}
+    </apiClientContext.Provider>
+  );
+};
+
+export function useApiClient() {
+  return useContext(apiClientContext);
+}
+
+function useProvideApiClient(): ApiClientContext {
+  const { accessToken, refreshAccessToken } = useAuth();
+
+  // Wrap value to immediatly update when refreshing access token
+  // and always having access to newest access token in interceptor
+  const localAccessToken = useRef(accessToken);
+
+  // initialState must be passed as function as return value of axios.create()
+  // is also callable and react will call it and then use that result (promise)
+  // as the initial state instead of the axios instace.
+  const [client] = useState<AxiosInstance>(() => axios.create());
+
+  useEffect(() => {
+    localAccessToken.current = accessToken;
+  }, [localAccessToken, accessToken]);
+
+  // TODO Implement lock to avoid multiple parallel refreshes, maybe in useAuth?
+
+  useEffect(() => {
+    // Setup Axios Interceptors
+    const requestInterceptor = client.interceptors.request.use(
+      (config) => {
+        if (!config.headers) {
+          config.headers = {};
+        }
+
+        config.headers.Authorization = `Bearer ${localAccessToken.current}`;
+
+        return config;
+      },
+      (err) => Promise.reject(err)
+    );
+    const responseInterceptor = client.interceptors.response.use(
+      (data) => data,
+      async (err: any) => {
+        if (!err.response || !err.config) {
+          throw err;
+        }
+
+        const { response, config } = err as {
+          response: AxiosResponse;
+          config: AxiosRequestConfig;
+        };
+
+        if (response && response.status !== 401) {
+          throw err;
+        }
+
+        // TODO error handling
+        localAccessToken.current = await refreshAccessToken();
+
+        return client.request(config);
+      }
+    );
+
+    return () => {
+      client.interceptors.request.eject(requestInterceptor);
+      client.interceptors.response.eject(responseInterceptor);
+    };
+  }, [client, localAccessToken, refreshAccessToken]);
+
+  return { client };
+}

frontend/src/hooks/use-api.tsx

@@ -0,0 +1,65 @@
+import { useMemo, useState } from "react";
+import { getListensReport, getRecentListens, getTopArtists } from "../api/api";
+import { ListenReportOptions } from "../api/entities/listen-report-options";
+import { PaginationOptions } from "../api/entities/pagination-options";
+import { TopArtistsOptions } from "../api/entities/top-artists-options";
+import { useApiClient } from "./use-api-client";
+import { useAsync } from "./use-async";
+
+const INITIAL_EMPTY_ARRAY: [] = [];
+Object.freeze(INITIAL_EMPTY_ARRAY);
+
+export const useRecentListens = (options: PaginationOptions) => {
+  const { client } = useApiClient();
+
+  const fetchData = useMemo(() => () => getRecentListens(options, client), [
+    options,
+    client,
+  ]);
+
+  const { value, pending: isLoading, error, reload } = useAsync(
+    fetchData,
+    undefined
+  );
+
+  const recentListens = value ? value.items : [];
+  const paginationMeta = value ? value.meta : undefined;
+
+  return { recentListens, paginationMeta, isLoading, error, reload };
+};
+
+export const useListensReport = (options: ListenReportOptions) => {
+  const { client } = useApiClient();
+
+  const [initialData] = useState(INITIAL_EMPTY_ARRAY);
+
+  const fetchData = useMemo(() => () => getListensReport(options, client), [
+    options,
+    client,
+  ]);
+
+  const { value: report, pending: isLoading, error } = useAsync(
+    fetchData,
+    initialData
+  );
+
+  return { report, isLoading, error };
+};
+
+export const useTopArtists = (options: TopArtistsOptions) => {
+  const { client } = useApiClient();
+
+  const [initialData] = useState(INITIAL_EMPTY_ARRAY);
+
+  const fetchData = useMemo(() => () => getTopArtists(options, client), [
+    options,
+    client,
+  ]);
+
+  const { value: topArtists, pending: isLoading, error } = useAsync(
+    fetchData,
+    initialData
+  );
+
+  return { topArtists, isLoading, error };
+};

frontend/src/hooks/use-async.tsx

@@ -3,7 +3,12 @@ import { useCallback, useEffect, useState } from "react";
 type UseAsync = <T>(
   asyncFunction: () => Promise<T>,
   initialValue: T
-) => { pending: boolean; value: T; error: Error | null };
+) => {
+  pending: boolean;
+  value: T;
+  error: Error | null;
+  reload: () => Promise<void>;
+};
 
 export const useAsync: UseAsync = <T extends any>(
   asyncFunction: () => Promise<T>,
@@ -34,5 +39,5 @@ export const useAsync: UseAsync = <T extends any>(
     execute();
   }, [execute]);
 
-  return { execute, pending, value, error };
+  return { reload: execute, pending, value, error };
 };

frontend/src/hooks/use-auth.tsx

@@ -1,20 +1,26 @@
-import React, { createContext, useContext, useEffect, useState } from "react";
-import { getUsersMe, UnauthenticatedError } from "../api/api";
+import React, {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useState,
+} from "react";
+import { getUsersMe, postAuthTokenRefresh } from "../api/auth-api";
 import { User } from "../api/entities/user";
 
+interface AuthContext {
+  isLoaded: boolean;
+  user: User | null;
+  accessToken: string;
+  error: Error | null;
+  refreshAccessToken: () => Promise<string>;
+  loginWithSpotifyProps: () => { href: string };
+}
+
 const authContext = createContext<AuthContext>(
   (undefined as any) as AuthContext
 );
 
-// Provider component that wraps your app and makes auth object ...
-// ... available to any child component that calls useAuth().
-
-interface AuthContext {
-  user: { id: string; displayName: string } | null;
-  isLoaded: boolean;
-  loginWithSpotifyProps: () => { href: string };
-}
-
 export const ProvideAuth: React.FC = ({ children }) => {
   const auth = useProvideAuth();
 
@@ -28,25 +34,51 @@ export function useAuth() {
 function useProvideAuth(): AuthContext {
   const [isLoaded, setIsLoaded] = useState(false);
   const [user, setUser] = useState<User | null>(null);
+  const [accessToken, setAccessToken] = useState<string>("");
+  const [error, setError] = useState<Error | null>(null);
 
   const loginWithSpotifyProps = () => ({ href: "/api/v1/auth/spotify" });
 
-  useEffect(() => {
-    (async () => {
-      try {
-        const currentUser = await getUsersMe();
-        setUser(currentUser);
-      } catch (err) {
-        if (err instanceof UnauthenticatedError) {
-          // User is not logged in
-        } else {
-          console.error("Error while checking login state:", err);
-        }
-      } finally {
-        setIsLoaded(true);
-      }
-    })();
+  const refreshAccessToken = useCallback(async () => {
+    try {
+      const { accessToken: newAccessToken } = await postAuthTokenRefresh();
+      setAccessToken(newAccessToken);
+      return newAccessToken;
+    } catch (err) {
+      setAccessToken("");
+      setUser(null);
+      setIsLoaded(true);
+      setError(err);
+
+      throw err;
+    }
   }, []);
 
-  return { isLoaded, user, loginWithSpotifyProps };
+  useEffect(() => {
+    refreshAccessToken().catch(() => {
+      console.log("Unable to refresh access token");
+    });
+  }, [refreshAccessToken]);
+
+  useEffect(() => {
+    if (!accessToken) {
+      return;
+    }
+    async function getUser(token: string) {
+      const newUser = await getUsersMe(token);
+      setUser(newUser);
+      setIsLoaded(true);
+    }
+
+    getUser(accessToken);
+  }, [accessToken]);
+
+  return {
+    isLoaded,
+    user,
+    accessToken,
+    error,
+    refreshAccessToken,
+    loginWithSpotifyProps,
+  };
 }

frontend/src/index.tsx

@@ -2,15 +2,18 @@ import React from "react";
 import ReactDOM from "react-dom";
 import { BrowserRouter } from "react-router-dom";
 import { App } from "./App";
+import { ProvideApiClient } from "./hooks/use-api-client";
 import { ProvideAuth } from "./hooks/use-auth";
 import * as serviceWorker from "./serviceWorker";
 
 ReactDOM.render(
   <React.StrictMode>
     <ProvideAuth>
-      <BrowserRouter>
-        <App />
-      </BrowserRouter>
+      <ProvideApiClient>
+        <BrowserRouter>
+          <App />
+        </BrowserRouter>
+      </ProvideApiClient>
     </ProvideAuth>
   </React.StrictMode>,
   document.getElementById("root")

package-lock.json

@@ -1820,6 +1820,15 @@
         "@types/node": "*"
       }
     },
+    "@types/cookie-parser": {
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/@types/cookie-parser/-/cookie-parser-1.4.2.tgz",
+      "integrity": "sha512-uwcY8m6SDQqciHsqcKDGbo10GdasYsPCYkH3hVegj9qAah6pX5HivOnOuI3WYmyQMnOATV39zv/Ybs0bC/6iVg==",
+      "dev": true,
+      "requires": {
+        "@types/express": "*"
+      }
+    },
     "@types/cookiejar": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/@types/cookiejar/-/cookiejar-2.1.1.tgz",
@@ -3635,6 +3644,15 @@
       "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.0.tgz",
       "integrity": "sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg=="
     },
+    "cookie-parser": {
+      "version": "1.4.5",
+      "resolved": "https://registry.npmjs.org/cookie-parser/-/cookie-parser-1.4.5.tgz",
+      "integrity": "sha512-f13bPUj/gG/5mDr+xLmSxxDsB9DQiTIfhJS/sqjrmfAWiAN+x2O4i/XguTL9yDZ+/IFDanJ+5x7hC4CXT9Tdzw==",
+      "requires": {
+        "cookie": "0.4.0",
+        "cookie-signature": "1.0.6"
+      }
+    },
     "cookie-signature": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",

package.json

@@ -37,6 +37,7 @@
     "@nestjs/typeorm": "7.1.0",
     "class-transformer": "0.3.1",
     "class-validator": "0.12.2",
+    "cookie-parser": "^1.4.5",
     "date-fns": "2.16.1",
     "nestjs-typeorm-paginate": "2.1.1",
     "passport": "0.4.1",
@@ -53,6 +54,7 @@
     "@nestjs/cli": "7.4.1",
     "@nestjs/schematics": "7.0.1",
     "@nestjs/testing": "7.3.1",
+    "@types/cookie-parser": "^1.4.2",
     "@types/express": "4.17.8",
     "@types/hapi__joi": "17.1.4",
     "@types/jest": "26.0.13",

src/auth/auth-session.entity.ts

@@ -0,0 +1,26 @@
+import {
+  Column,
+  CreateDateColumn,
+  Entity,
+  ManyToOne,
+  PrimaryGeneratedColumn,
+} from "typeorm";
+import { User } from "../users/user.entity";
+
+@Entity()
+export class AuthSession {
+  @PrimaryGeneratedColumn("uuid")
+  id: string;
+
+  @ManyToOne((type) => User, { eager: true })
+  user: User;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @Column({ type: "timestamp", default: () => "CURRENT_TIMESTAMP" })
+  lastUsedAt: Date;
+
+  @Column({ type: "timestamp", nullable: true })
+  revokedAt: Date | null;
+}

src/auth/auth-session.repository.ts

@@ -0,0 +1,23 @@
+// tslint:disable: max-classes-per-file
+import { EntityRepository, Repository, SelectQueryBuilder } from "typeorm";
+import { User } from "../users/user.entity";
+import { AuthSession } from "./auth-session.entity";
+
+export class AuthSessionScopes extends SelectQueryBuilder<AuthSession> {
+  /**
+   * `byUser` scopes the query to AuthSessions created by the user.
+   * @param currentUser
+   */
+  byUser(currentUser: User): this {
+    return this.andWhere(`session."userId" = :userID`, {
+      userID: currentUser.id,
+    });
+  }
+}
+
+@EntityRepository(AuthSession)
+export class AuthSessionRepository extends Repository<AuthSession> {
+  get scoped(): AuthSessionScopes {
+    return new AuthSessionScopes(this.createQueryBuilder("session"));
+  }
+}

src/auth/auth.controller.ts

@@ -1,10 +1,23 @@
-import { Controller, Get, Res, UseFilters, UseGuards } from "@nestjs/common";
+import {
+  Controller,
+  Get,
+  Post,
+  Res,
+  UseFilters,
+  UseGuards,
+} from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
-import { AuthGuard } from "@nestjs/passport";
 import { Response } from "express";
 import { User } from "../users/user.entity";
+import { AuthSession } from "./auth-session.entity";
 import { AuthService } from "./auth.service";
+import { COOKIE_REFRESH_TOKEN } from "./constants";
 import { ReqUser } from "./decorators/req-user.decorator";
+import { RefreshAccessTokenResponseDto } from "./dto/refresh-access-token-response.dto";
+import {
+  RefreshTokenAuthGuard,
+  SpotifyAuthGuard,
+} from "./guards/auth-strategies.guard";
 import { SpotifyAuthFilter } from "./spotify.filter";
 
 @Controller("api/v1/auth")
@@ -15,26 +28,33 @@ export class AuthController {
   ) {}
 
   @Get("spotify")
-  @UseGuards(AuthGuard("spotify"))
+  @UseGuards(SpotifyAuthGuard)
   spotifyRedirect() {
     // User is redirected by AuthGuard
   }
 
   @Get("spotify/callback")
   @UseFilters(SpotifyAuthFilter)
-  @UseGuards(AuthGuard("spotify"))
+  @UseGuards(SpotifyAuthGuard)
   async spotifyCallback(@ReqUser() user: User, @Res() res: Response) {
-    const { accessToken } = await this.authService.createToken(user);
+    const { refreshToken } = await this.authService.createSession(user);
 
-    // Transmit accessToken to Frontend
-    res.cookie("listory_access_token", accessToken, {
-      maxAge: 24 * 60 * 60 * 1000, // 1 day
-
-      // Must be readable by SPA
-      httpOnly: false,
-    });
+    // Refresh token should not be accessible to frontend to reduce risk
+    // of XSS attacks.
+    res.cookie(COOKIE_REFRESH_TOKEN, refreshToken, { httpOnly: true });
 
     // Redirect User to SPA
     res.redirect("/login/success?source=spotify");
   }
+
+  @Post("token/refresh")
+  @UseGuards(RefreshTokenAuthGuard)
+  async refreshAccessToken(
+    // With RefreshTokenAuthGuard the session is available instead of user
+    @ReqUser() session: AuthSession
+  ): Promise<RefreshAccessTokenResponseDto> {
+    const { accessToken } = await this.authService.createAccessToken(session);
+
+    return { accessToken };
+  }
 }

src/auth/auth.module.ts

@@ -1,15 +1,20 @@
-import { Module } from "@nestjs/common";
+import { MiddlewareConsumer, Module, NestModule } from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
 import { JwtModule } from "@nestjs/jwt";
 import { PassportModule } from "@nestjs/passport";
+import { TypeOrmModule } from "@nestjs/typeorm";
+import { CookieParserMiddleware } from "../cookie-parser";
 import { UsersModule } from "../users/users.module";
+import { AuthSessionRepository } from "./auth-session.repository";
 import { AuthController } from "./auth.controller";
 import { AuthService } from "./auth.service";
-import { JwtStrategy } from "./jwt.strategy";
-import { SpotifyStrategy } from "./spotify.strategy";
+import { AccessTokenStrategy } from "./strategies/access-token.strategy";
+import { RefreshTokenStrategy } from "./strategies/refresh-token.strategy";
+import { SpotifyStrategy } from "./strategies/spotify.strategy";
 
 @Module({
   imports: [
+    TypeOrmModule.forFeature([AuthSessionRepository]),
     PassportModule.register({ defaultStrategy: "jwt" }),
     JwtModule.registerAsync({
       useFactory: (config: ConfigService) => ({
@@ -23,8 +28,17 @@ import { SpotifyStrategy } from "./spotify.strategy";
     }),
     UsersModule,
   ],
-  providers: [AuthService, SpotifyStrategy, JwtStrategy],
+  providers: [
+    AuthService,
+    SpotifyStrategy,
+    AccessTokenStrategy,
+    RefreshTokenStrategy,
+  ],
   exports: [PassportModule],
   controllers: [AuthController],
 })
-export class AuthModule {}
+export class AuthModule implements NestModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer.apply(CookieParserMiddleware).forRoutes("api/v1/auth");
+  }
+}

src/auth/auth.service.ts

@@ -1,19 +1,27 @@
-import { Injectable, ForbiddenException } from "@nestjs/common";
+import { ForbiddenException, Injectable } from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
 import { JwtService } from "@nestjs/jwt";
 import { User } from "../users/user.entity";
 import { UsersService } from "../users/users.service";
+import { AuthSession } from "./auth-session.entity";
+import { AuthSessionRepository } from "./auth-session.repository";
 import { LoginDto } from "./dto/login.dto";
 
 @Injectable()
 export class AuthService {
   private readonly userFilter: null | string;
+  private readonly sessionExpirationTime: string;
+
   constructor(
     private readonly config: ConfigService,
     private readonly usersService: UsersService,
-    private readonly jwtService: JwtService
+    private readonly jwtService: JwtService,
+    private readonly authSessionRepository: AuthSessionRepository
   ) {
     this.userFilter = this.config.get<string>("SPOTIFY_USER_FILTER");
+    this.sessionExpirationTime = this.config.get<string>(
+      "SESSION_EXPIRATION_TIME"
+    );
   }
 
   async spotifyLogin({
@@ -38,6 +46,67 @@ export class AuthService {
     return user;
   }
 
+  async createSession(
+    user: User
+  ): Promise<{
+    session: AuthSession;
+    refreshToken: string;
+  }> {
+    const session = this.authSessionRepository.create();
+
+    session.user = user;
+    await this.authSessionRepository.save(session);
+
+    const [{ refreshToken }] = await Promise.all([
+      this.createRefreshToken(session),
+      this.createAccessToken(session),
+    ]);
+
+    return { session, refreshToken };
+  }
+
+  /**
+   * createRefreshToken should only be used while creating a new session.
+   * @param session
+   */
+  private async createRefreshToken(
+    session: AuthSession
+  ): Promise<{ refreshToken }> {
+    const payload = {
+      sub: session.user.id,
+      name: session.user.displayName,
+    };
+
+    const token = await this.jwtService.signAsync(payload, {
+      jwtid: session.id,
+      // jwtService uses the shorter access token time as a default
+      expiresIn: this.sessionExpirationTime,
+    });
+
+    return { refreshToken: token };
+  }
+
+  async createAccessToken(session: AuthSession): Promise<{ accessToken }> {
+    if (session.revokedAt) {
+      throw new ForbiddenException("SessionIsRevoked");
+    }
+
+    const payload = {
+      sub: session.user.id,
+      name: session.user.displayName,
+      picture: session.user.photo,
+    };
+
+    const token = await this.jwtService.signAsync(payload);
+
+    return { accessToken: token };
+  }
+
+  /**
+   * Switch to createAccessToken
+   * @deprecated
+   * @param user
+   */
   async createToken(user: User): Promise<{ accessToken }> {
     const payload = {
       sub: user.id,
@@ -50,6 +119,10 @@ export class AuthService {
     return { accessToken: token };
   }
 
+  async findSession(id: string): Promise<AuthSession> {
+    return this.authSessionRepository.findOne(id);
+  }
+
   async findUser(id: string): Promise<User> {
     return this.usersService.findById(id);
   }

src/auth/constants.ts

@@ -0,0 +1 @@
+export const COOKIE_REFRESH_TOKEN = "listory_refresh_token";

src/auth/decorators/auth-access-token.decorator.ts

@@ -1,10 +1,10 @@
 import { applyDecorators, UseGuards } from "@nestjs/common";
-import { AuthGuard } from "@nestjs/passport";
 import { ApiBearerAuth, ApiUnauthorizedResponse } from "@nestjs/swagger";
+import { AccessTokenAuthGuard } from "../guards/auth-strategies.guard";
 
-export function Auth() {
+export function AuthAccessToken() {
   return applyDecorators(
-    UseGuards(AuthGuard("jwt")),
+    UseGuards(AccessTokenAuthGuard),
     ApiBearerAuth(),
     ApiUnauthorizedResponse({ description: 'Unauthorized"' })
   );

src/auth/dto/refresh-access-token-response.dto.ts

@@ -0,0 +1,3 @@
+export class RefreshAccessTokenResponseDto {
+  accessToken: string;
+}

src/auth/guards/auth-strategies.guard.ts

@@ -0,0 +1,9 @@
+import { AuthGuard } from "@nestjs/passport";
+import { AuthStrategy } from "../strategies/strategies.enum";
+
+// Internal
+export const AccessTokenAuthGuard = AuthGuard(AuthStrategy.AccessToken);
+export const RefreshTokenAuthGuard = AuthGuard(AuthStrategy.RefreshToken);
+
+// Auth Provider
+export const SpotifyAuthGuard = AuthGuard(AuthStrategy.Spotify);

src/auth/strategies/access-token.strategy.ts

@@ -1,11 +1,15 @@
 import { Injectable } from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
 import { PassportStrategy } from "@nestjs/passport";
-import { Strategy, ExtractJwt } from "passport-jwt";
-import { AuthService } from "./auth.service";
+import { ExtractJwt, Strategy } from "passport-jwt";
+import { AuthService } from "../auth.service";
+import { AuthStrategy } from "./strategies.enum";
 
 @Injectable()
-export class JwtStrategy extends PassportStrategy(Strategy) {
+export class AccessTokenStrategy extends PassportStrategy(
+  Strategy,
+  AuthStrategy.AccessToken
+) {
   constructor(
     private readonly authService: AuthService,
     config: ConfigService
@@ -17,7 +21,7 @@ export class JwtStrategy extends PassportStrategy(Strategy) {
     });
   }
 
-  async validate(payload: any) {
+  async validate(payload: { sub: string }) {
     return this.authService.findUser(payload.sub);
   }
 }

src/auth/strategies/refresh-token.strategy.ts

@@ -0,0 +1,48 @@
+import {
+  Injectable,
+  UnauthorizedException,
+  ForbiddenException,
+} from "@nestjs/common";
+import { ConfigService } from "@nestjs/config";
+import { PassportStrategy } from "@nestjs/passport";
+import { JwtFromRequestFunction, Strategy } from "passport-jwt";
+import { AuthService } from "../auth.service";
+import { COOKIE_REFRESH_TOKEN } from "../constants";
+import { AuthStrategy } from "./strategies.enum";
+import { AuthSession } from "../auth-session.entity";
+
+const extractJwtFromCookie: JwtFromRequestFunction = (req) => {
+  const token = req.cookies[COOKIE_REFRESH_TOKEN] || null;
+  return token;
+};
+
+@Injectable()
+export class RefreshTokenStrategy extends PassportStrategy(
+  Strategy,
+  AuthStrategy.RefreshToken
+) {
+  constructor(
+    private readonly authService: AuthService,
+    config: ConfigService
+  ) {
+    super({
+      jwtFromRequest: extractJwtFromCookie,
+      ignoreExpiration: false,
+      secretOrKey: config.get<string>("JWT_SECRET"),
+    });
+  }
+
+  async validate(payload: { jti: string }): Promise<AuthSession> {
+    const session = await this.authService.findSession(payload.jti);
+
+    if (!session) {
+      throw new UnauthorizedException("SessionNotFound");
+    }
+
+    if (session.revokedAt) {
+      throw new ForbiddenException("SessionIsRevoked");
+    }
+
+    return session;
+  }
+}

src/auth/strategies/spotify.strategy.ts

@@ -2,10 +2,14 @@ import { Injectable } from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
 import { PassportStrategy } from "@nestjs/passport";
 import { Strategy } from "passport-spotify";
-import { AuthService } from "./auth.service";
+import { AuthService } from "../auth.service";
+import { AuthStrategy } from "./strategies.enum";
 
 @Injectable()
-export class SpotifyStrategy extends PassportStrategy(Strategy) {
+export class SpotifyStrategy extends PassportStrategy(
+  Strategy,
+  AuthStrategy.Spotify
+) {
   constructor(
     private readonly authService: AuthService,
     config: ConfigService

src/auth/strategies/strategies.enum.ts

@@ -0,0 +1,8 @@
+export enum AuthStrategy {
+  // Internal
+  AccessToken = "access_token",
+  RefreshToken = "refresh_token",
+
+  // Auth Provider
+  Spotify = "spotify",
+}

src/config/config.module.ts

@@ -1,9 +1,6 @@
 import * as Joi from "@hapi/joi";
 import { Module } from "@nestjs/common";
-import {
-  ConfigModule as NestConfigModule,
-  ConfigService,
-} from "@nestjs/config";
+import { ConfigModule as NestConfigModule } from "@nestjs/config";
 
 @Module({
   imports: [
@@ -19,7 +16,9 @@ import {
         JWT_ALGORITHM: Joi.string()
           .default("HS256")
           .allow("HS256", "HS384", "HS512"),
-        JWT_EXPIRATION_TIME: Joi.string().default("1d"),
+
+        JWT_EXPIRATION_TIME: Joi.string().default("15m"),
+        SESSION_EXPIRATION_TIME: Joi.string().default("1y"),
 
         // Spotify
         SPOTIFY_CLIENT_ID: Joi.string().required(),

src/cookie-parser/cookie-parser.middleware.ts

@@ -0,0 +1,16 @@
+import { Injectable, NestMiddleware } from "@nestjs/common";
+import * as cookieParser from "cookie-parser";
+import type { RequestHandler } from "express";
+
+@Injectable()
+export class CookieParserMiddleware implements NestMiddleware {
+  private readonly middleware: RequestHandler;
+
+  constructor() {
+    this.middleware = cookieParser();
+  }
+
+  use(req: any, res: any, next: () => void) {
+    return this.middleware(req, res, next);
+  }
+}

src/cookie-parser/index.ts

@@ -0,0 +1 @@
+export { CookieParserMiddleware } from "./cookie-parser.middleware";

src/database/migrations/04-CreateAuthSessionsTable.ts

@@ -0,0 +1,69 @@
+import {
+  MigrationInterface,
+  QueryRunner,
+  Table,
+  TableIndex,
+  TableForeignKey,
+} from "typeorm";
+import { TableColumnOptions } from "typeorm/schema-builder/options/TableColumnOptions";
+
+const primaryUUIDColumn: TableColumnOptions = {
+  name: "id",
+  type: "uuid",
+  isPrimary: true,
+  isGenerated: true,
+  generationStrategy: "uuid",
+};
+
+export class CreateAuthSessionsTable0000000000004
+  implements MigrationInterface {
+  async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.createTable(
+      new Table({
+        name: "auth_session",
+        columns: [
+          primaryUUIDColumn,
+          {
+            name: "userId",
+            type: "uuid",
+          },
+          {
+            name: "createdAt",
+            type: "timestamp",
+            default: "CURRENT_TIMESTAMP",
+          },
+          {
+            name: "lastUsedAt",
+            type: "timestamp",
+            default: "CURRENT_TIMESTAMP",
+          },
+          {
+            name: "revokedAt",
+            type: "timestamp",
+            default: null,
+            isNullable: true,
+          },
+        ],
+        indices: [
+          new TableIndex({
+            name: "IDX_AUTH_SESSION_USER_ID",
+            columnNames: ["userId"],
+          }),
+        ],
+        foreignKeys: [
+          new TableForeignKey({
+            name: "FK_AUTH_SESSION_USER_ID",
+            columnNames: ["userId"],
+            referencedColumnNames: ["id"],
+            referencedTableName: "user",
+          }),
+        ],
+      }),
+      true
+    );
+  }
+
+  async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.dropTable("auth_session");
+  }
+}

src/listens/listens.controller.ts

@@ -1,6 +1,6 @@
 import { Controller, Get, Query } from "@nestjs/common";
 import { Pagination } from "nestjs-typeorm-paginate";
-import { Auth } from "../auth/decorators/auth.decorator";
+import { AuthAccessToken } from "../auth/decorators/auth-access-token.decorator";
 import { ReqUser } from "../auth/decorators/req-user.decorator";
 import { User } from "../users/user.entity";
 import { GetListensFilterDto } from "./dto/get-listens.dto";
@@ -12,7 +12,7 @@ export class ListensController {
   constructor(private readonly listensService: ListensService) {}
 
   @Get()
-  @Auth()
+  @AuthAccessToken()
   async getRecentlyPlayed(
     @Query("page") page: number = 1,
     @Query("limit") limit: number = 10,

src/reports/reports.controller.ts

@@ -1,5 +1,5 @@
 import { Controller, Get, Query } from "@nestjs/common";
-import { Auth } from "../auth/decorators/auth.decorator";
+import { AuthAccessToken } from "../auth/decorators/auth-access-token.decorator";
 import { ReqUser } from "../auth/decorators/req-user.decorator";
 import { User } from "../users/user.entity";
 import { ListenReportDto } from "./dto/listen-report.dto";
@@ -13,7 +13,7 @@ export class ReportsController {
   constructor(private readonly reportsService: ReportsService) {}
 
   @Get("listens")
-  @Auth()
+  @AuthAccessToken()
   async getListens(
     @Query() time: ReportTimeDto,
     @Query("timeFrame") timeFrame: Timeframe,
@@ -23,7 +23,7 @@ export class ReportsController {
   }
 
   @Get("top-artists")
-  @Auth()
+  @AuthAccessToken()
   async getTopArtists(
     @Query() time: ReportTimeDto,
     @ReqUser() user: User

src/users/users.controller.ts

@@ -1,12 +1,12 @@
 import { Controller, Get } from "@nestjs/common";
-import { Auth } from "../auth/decorators/auth.decorator";
+import { AuthAccessToken } from "../auth/decorators/auth-access-token.decorator";
 import { ReqUser } from "../auth/decorators/req-user.decorator";
 import { User } from "./user.entity";
 
 @Controller("api/v1/users")
 export class UsersController {
   @Get("me")
-  @Auth()
+  @AuthAccessToken()
   getMe(@ReqUser() user: User): Omit<User, "spotify"> {
     return {
       id: user.id,