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jfa-go
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Add refresh tokens for persistent login, logout button

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the main JWT is stored temporarily, whereas the refresh token is stored
as a cookie and can only be used to obtain a new main token. Logout
button adds token to blocklist internally and deletes JWT and refresh
token from browser storage.
pull/20/head
Harvey Tindall 4 years ago
parent 29a79a1ce1
commit d144077e62
No known key found for this signature in database
GPG Key ID: BBC65952848FB1A2
5 changed files with 168 additions and 61 deletions
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5
api.go
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@ -609,6 +609,11 @@ func (app *appContext) ModifyConfig(gc *gin.Context) {
}
}
func (app *appContext) Logout(gc *gin.Context) {
app.invalidIds = append(app.invalidIds, gc.GetString("userId"))
gc.JSON(200, map[string]bool{"success": true})
}
// func Restart() error {
// defer func() {
// if r := recover(); r != nil {

127
auth.go
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@ -4,6 +4,7 @@ import (
"encoding/base64"
"fmt"
"os"
"strconv"
"strings"
"time"
@ -40,7 +41,14 @@ func (app *appContext) authenticate(gc *gin.Context) {
claims, ok := token.Claims.(jwt.MapClaims)
var userId string
var jfId string
if ok && token.Valid {
expiryUnix, err := strconv.ParseInt(claims["exp"].(string), 10, 64)
if err != nil {
app.debug.Printf("Auth denied: %s", err)
respond(401, "Unauthorized", gc)
return
}
expiry := time.Unix(expiryUnix, 0)
if ok && token.Valid && claims["type"].(string) == "bearer" && expiry.After(time.Now()) {
userId = claims["id"].(string)
jfId = claims["jfid"].(string)
} else {
@ -76,71 +84,126 @@ func (app *appContext) GetToken(gc *gin.Context) {
auth, _ := base64.StdEncoding.DecodeString(header[1])
creds := strings.SplitN(string(auth), ":", 2)
match := false
var userId string
var userId, jfId string
for _, user := range app.users {
if user.Username == creds[0] && user.Password == creds[1] {
match = true
userId = user.UserID
}
}
jfId := ""
if !match {
if !app.jellyfinLogin {
app.info.Println("Auth failed: Invalid username and/or password")
respond(401, "Unauthorized", gc)
return
}
var status int
var err error
var user map[string]interface{}
user, status, err = app.authJf.authenticate(creds[0], creds[1])
if status != 200 || err != nil {
if status == 401 || status == 400 {
app.info.Println("Auth failed: Invalid username and/or password")
respond(401, "Invalid username/password", gc)
if creds[1] == "" {
token, err := jwt.Parse(creds[0], func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
app.debug.Printf("Invalid JWT signing method %s", token.Header["alg"])
return nil, fmt.Errorf("Unexpected signing method %v", token.Header["alg"])
}
return []byte(os.Getenv("JFA_SECRET")), nil
})
if err != nil {
app.debug.Printf("Auth denied: %s", err)
respond(401, "Unauthorized", gc)
return
}
app.err.Printf("Auth failed: Couldn't authenticate with Jellyfin: Code %d", status)
respond(500, "Jellyfin error", gc)
return
} else {
jfId = user["Id"].(string)
if app.config.Section("ui").Key("admin_only").MustBool(true) {
if !user["Policy"].(map[string]interface{})["IsAdministrator"].(bool) {
app.debug.Printf("Auth failed: User \"%s\" isn't admin", creds[0])
claims, ok := token.Claims.(jwt.MapClaims)
for _, id := range app.invalidIds {
if claims["id"].(string) == id {
app.debug.Printf("Auth denied: Refresh token in blocklist")
respond(401, "Unauthorized", gc)
return
}
}
newuser := User{}
newuser.UserID = shortuuid.New()
userId = newuser.UserID
// uuid, nothing else identifiable!
app.debug.Printf("Token generated for user \"%s\"", creds[0])
app.users = append(app.users, newuser)
expiryUnix, err := strconv.ParseInt(claims["exp"].(string), 10, 64)
if err != nil {
app.debug.Printf("Auth denied: %s", err)
respond(401, "Unauthorized", gc)
return
}
expiry := time.Unix(expiryUnix, 0)
if ok && token.Valid && claims["type"].(string) == "refresh" && expiry.After(time.Now()) {
userId = claims["id"].(string)
jfId = claims["jfid"].(string)
} else {
app.debug.Printf("Invalid token (invalid or not refresh type)")
respond(401, "Unauthorized", gc)
return
}
} else {
var status int
var err error
var user map[string]interface{}
user, status, err = app.authJf.authenticate(creds[0], creds[1])
if status != 200 || err != nil {
if status == 401 || status == 400 {
app.info.Println("Auth failed: Invalid username and/or password")
respond(401, "Invalid username/password", gc)
return
}
app.err.Printf("Auth failed: Couldn't authenticate with Jellyfin: Code %d", status)
respond(500, "Jellyfin error", gc)
return
} else {
jfId = user["Id"].(string)
if app.config.Section("ui").Key("admin_only").MustBool(true) {
if !user["Policy"].(map[string]interface{})["IsAdministrator"].(bool) {
app.debug.Printf("Auth failed: User \"%s\" isn't admin", creds[0])
respond(401, "Unauthorized", gc)
}
}
newuser := User{}
newuser.UserID = shortuuid.New()
userId = newuser.UserID
// uuid, nothing else identifiable!
app.debug.Printf("Token generated for user \"%s\"", creds[0])
app.users = append(app.users, newuser)
}
}
}
token, err := CreateToken(userId, jfId)
token, refresh, err := CreateToken(userId, jfId)
if err != nil {
respond(500, "Error generating token", gc)
}
resp := map[string]string{"token": token}
resp := map[string]string{"token": token, "refresh": refresh}
gc.JSON(200, resp)
}
func CreateToken(userId string, jfId string) (string, error) {
func CreateToken(userId string, jfId string) (string, string, error) {
var token, refresh string
var err error
claims := jwt.MapClaims{
"valid": true,
"id": userId,
"exp": time.Now().Add(time.Minute * 20).Unix(),
"exp": strconv.FormatInt(time.Now().Add(time.Minute*20).Unix(), 10),
"jfid": jfId,
"type": "bearer",
}
tk := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
token, err := tk.SignedString([]byte(os.Getenv("JFA_SECRET")))
token, err = tk.SignedString([]byte(os.Getenv("JFA_SECRET")))
if err != nil {
return "", err
return "", "", err
}
return token, nil
claims = jwt.MapClaims{
"valid": true,
"id": userId,
"exp": strconv.FormatInt(time.Now().Add(time.Hour*24).Unix(), 10),
"jfid": jfId,
"type": "refresh",
}
tk = jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
refresh, err = tk.SignedString([]byte(os.Getenv("JFA_SECRET")))
if err != nil {
return "", "", err
}
return token, refresh, nil
}
func respond(code int, message string, gc *gin.Context) {

92
data/static/admin.js
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@ -531,20 +531,7 @@ document.getElementById('inviteForm').onsubmit = function() {
return false;
};
document.getElementById('loginForm').onsubmit = function() {
window.token = "";
let details = serializeForm('loginForm');
// let errorArea = document.getElementById('loginErrorArea');
// errorArea.textContent = '';
let button = document.getElementById('loginSubmit');
if (button.classList.contains('btn-danger')) {
button.classList.add('btn-primary');
button.classList.remove('btn-danger');
}
button.disabled = true;
button.innerHTML =
'<span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="margin-right: 0.5rem;"></span>' +
'Loading...';
function tryLogin(username, password, modal, button) {
let req = new XMLHttpRequest();
req.responseType = 'json';
req.onreadystatechange = function() {
@ -554,22 +541,27 @@ document.getElementById('loginForm').onsubmit = function() {
if (errormsg == "") {
errormsg = "Unknown error"
}
button.disabled = false;
button.textContent = errormsg;
if (!button.classList.contains('btn-danger')) {
button.classList.add('btn-danger');
button.classList.remove('btn-primary');
}
setTimeout(function () {
if (button.classList.contains('btn-danger')) {
button.classList.add('btn-primary');
button.classList.remove('btn-danger');
button.textContent = 'Login';
if (modal) {
button.disabled = false;
button.textContent = errormsg;
if (!button.classList.contains('btn-danger')) {
button.classList.add('btn-danger');
button.classList.remove('btn-primary');
}
}, 4000)
setTimeout(function () {
if (button.classList.contains('btn-danger')) {
button.classList.add('btn-primary');
button.classList.remove('btn-danger');
button.textContent = 'Login';
}
}, 4000)
} else {
loginModal.show();
}
} else {
const data = this.response;
window.token = data['token'];
document.cookie = "refresh=" + data['refresh'];
generateInvites();
const interval = setInterval(function() { generateInvites(); }, 60 * 1000);
let day = document.getElementById('days');
@ -582,13 +574,33 @@ document.getElementById('loginForm').onsubmit = function() {
addOptions(59, minutes);
minutes.selected = "30";
checkDuration();
loginModal.hide();
if (modal) {
loginModal.hide();
}
document.getElementById('logoutButton').setAttribute('style', '');
}
}
};
req.open("GET", "/getToken", true);
req.setRequestHeader("Authorization", "Basic " + btoa(details['username'] + ":" + details['password']));
req.setRequestHeader("Authorization", "Basic " + btoa(username + ":" + password));
req.send();
}
document.getElementById('loginForm').onsubmit = function() {
window.token = "";
let details = serializeForm('loginForm');
// let errorArea = document.getElementById('loginErrorArea');
// errorArea.textContent = '';
let button = document.getElementById('loginSubmit');
if (button.classList.contains('btn-danger')) {
button.classList.add('btn-primary');
button.classList.remove('btn-danger');
}
button.disabled = true;
button.innerHTML =
'<span class="spinner-border spinner-border-sm" role="status" aria-hidden="true" style="margin-right: 0.5rem;"></span>' +
'Loading...';
tryLogin(details['username'], details['password'], true, button)
return false;
};
@ -794,7 +806,29 @@ document.getElementById('openUsers').onclick = function () {
};
generateInvites(empty = true);
loginModal.show();
let refreshToken = getCookie("refresh")
if (refreshToken != "") {
tryLogin(refreshToken, "", false)
} else {
loginModal.show();
}
document.getElementById('logoutButton').onclick = function () {
let req = new XMLHttpRequest();
req.open("POST", "/logout", true);
req.responseType = 'json';
req.setRequestHeader("Authorization", "Basic " + btoa(window.token + ":"));
req.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
window.token = '';
document.cookie = 'refresh=;';
location.reload();
return false;
}
};
req.send();
}
var config = {};
var modifiedConfig = {};

3
data/templates/admin.html
Unescape View File

@ -258,6 +258,9 @@
<button type="button" class="btn btn-primary" id="openSettings">
Settings <i class="fa fa-cog"></i>
</button>
<button type="button" class="btn btn-danger" id="logoutButton" style="display: none;">
Logout <i class="fa fa-sign-out"></i>
</button>
</div>
<div class="card mb-3 linkGroup">
<div class="card-header">Current Invites</div>

2
main.go
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@ -42,6 +42,7 @@ type appContext struct {
bsVersion int
jellyfinLogin bool
users []User
invalidIds []string
jf Jellyfin
authJf Jellyfin
datePattern string
@ -328,6 +329,7 @@ func main() {
router.Use(static.Serve("/invite/", static.LocalFile(filepath.Join(app.local_path, "static"), false)))
router.GET("/invite/:invCode", app.InviteProxy)
api := router.Group("/", app.webAuth())
api.POST("/logout", app.Logout)
api.POST("/generateInvite", app.GenerateInvite)
api.GET("/getInvites", app.GetInvites)
api.POST("/setNotify", app.SetNotify)

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