tailscale/client/web/web_test.go

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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package web
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"tailscale.com/client/tailscale"
"tailscale.com/client/tailscale/apitype"
"tailscale.com/ipn/ipnstate"
"tailscale.com/net/memnet"
"tailscale.com/tailcfg"
"tailscale.com/types/views"
"tailscale.com/util/httpm"
)
func TestQnapAuthnURL(t *testing.T) {
query := url.Values{
"qtoken": []string{"token"},
}
tests := []struct {
name string
in string
want string
}{
{
name: "localhost http",
in: "http://localhost:8088/",
want: "http://localhost:8088/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "localhost https",
in: "https://localhost:5000/",
want: "https://localhost:5000/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "IP http",
in: "http://10.1.20.4:80/",
want: "http://10.1.20.4:80/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "IP6 https",
in: "https://[ff7d:0:1:2::1]/",
want: "https://[ff7d:0:1:2::1]/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "hostname https",
in: "https://qnap.example.com/",
want: "https://qnap.example.com/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "invalid URL",
in: "This is not a URL, it is a really really really really really really really really really really really really long string to exercise the URL truncation code in the error path.",
want: "http://localhost/cgi-bin/authLogin.cgi?qtoken=token",
},
{
name: "err != nil",
in: "http://192.168.0.%31/",
want: "http://localhost/cgi-bin/authLogin.cgi?qtoken=token",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
u := qnapAuthnURL(tt.in, query)
if u != tt.want {
t.Errorf("expected url: %q, got: %q", tt.want, u)
}
})
}
}
// TestServeAPI tests the web client api's handling of
// 1. invalid endpoint errors
// 2. localapi proxy allowlist
func TestServeAPI(t *testing.T) {
lal := memnet.Listen("local-tailscaled.sock:80")
defer lal.Close()
// Serve dummy localapi. Just returns "success".
localapi := &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "success")
})}
defer localapi.Close()
go localapi.Serve(lal)
s := &Server{lc: &tailscale.LocalClient{Dial: lal.Dial}}
tests := []struct {
name string
reqPath string
wantResp string
wantStatus int
}{{
name: "invalid_endpoint",
reqPath: "/not-an-endpoint",
wantResp: "invalid endpoint",
wantStatus: http.StatusNotFound,
}, {
name: "not_in_localapi_allowlist",
reqPath: "/local/v0/not-allowlisted",
wantResp: "/v0/not-allowlisted not allowed from localapi proxy",
wantStatus: http.StatusForbidden,
}, {
name: "in_localapi_allowlist",
reqPath: "/local/v0/logout",
wantResp: "success", // Successfully allowed to hit localapi.
wantStatus: http.StatusOK,
}}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
r := httptest.NewRequest("POST", "/api"+tt.reqPath, nil)
w := httptest.NewRecorder()
s.serveAPI(w, r)
res := w.Result()
defer res.Body.Close()
if gotStatus := res.StatusCode; tt.wantStatus != gotStatus {
t.Errorf("wrong status; want=%v, got=%v", tt.wantStatus, gotStatus)
}
body, err := io.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
gotResp := strings.TrimSuffix(string(body), "\n") // trim trailing newline
if tt.wantResp != gotResp {
t.Errorf("wrong response; want=%q, got=%q", tt.wantResp, gotResp)
}
})
}
}
func TestGetTailscaleBrowserSession(t *testing.T) {
userA := &tailcfg.UserProfile{ID: tailcfg.UserID(1)}
userB := &tailcfg.UserProfile{ID: tailcfg.UserID(2)}
userANodeIP := "100.100.100.101"
userBNodeIP := "100.100.100.102"
taggedNodeIP := "100.100.100.103"
var selfNode *ipnstate.PeerStatus
tags := views.SliceOf([]string{"tag:server"})
tailnetNodes := map[string]*apitype.WhoIsResponse{
userANodeIP: {
Node: &tailcfg.Node{ID: 1, StableID: "1"},
UserProfile: userA,
},
userBNodeIP: {
Node: &tailcfg.Node{ID: 2, StableID: "2"},
UserProfile: userB,
},
taggedNodeIP: {
Node: &tailcfg.Node{ID: 3, StableID: "3", Tags: tags.AsSlice()},
},
}
lal := memnet.Listen("local-tailscaled.sock:80")
defer lal.Close()
localapi := mockLocalAPI(t, tailnetNodes, func() *ipnstate.PeerStatus { return selfNode })
defer localapi.Close()
go localapi.Serve(lal)
s := &Server{
timeNow: time.Now,
lc: &tailscale.LocalClient{Dial: lal.Dial},
}
// Add some browser sessions to cache state.
userASession := &browserSession{
ID: "cookie1",
SrcNode: 1,
SrcUser: userA.ID,
Created: time.Now(),
Authenticated: false, // not yet authenticated
}
userBSession := &browserSession{
ID: "cookie2",
SrcNode: 2,
SrcUser: userB.ID,
Created: time.Now().Add(-2 * sessionCookieExpiry),
Authenticated: true, // expired
}
userASessionAuthorized := &browserSession{
ID: "cookie3",
SrcNode: 1,
SrcUser: userA.ID,
Created: time.Now(),
Authenticated: true, // authenticated and not expired
}
s.browserSessions.Store(userASession.ID, userASession)
s.browserSessions.Store(userBSession.ID, userBSession)
s.browserSessions.Store(userASessionAuthorized.ID, userASessionAuthorized)
tests := []struct {
name string
selfNode *ipnstate.PeerStatus
remoteAddr string
cookie string
wantSession *browserSession
wantError error
wantIsAuthorized bool // response from session.isAuthorized
}{
{
name: "not-connected-over-tailscale",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: "77.77.77.77",
wantSession: nil,
wantError: errNotUsingTailscale,
},
{
name: "no-session-user-self-node",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: userANodeIP,
cookie: "not-a-cookie",
wantSession: nil,
wantError: errNoSession,
},
{
name: "no-session-tagged-self-node",
selfNode: &ipnstate.PeerStatus{ID: "self", Tags: &tags},
remoteAddr: userANodeIP,
wantSession: nil,
wantError: errNoSession,
},
{
name: "not-owner",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: userBNodeIP,
wantSession: nil,
wantError: errNotOwner,
},
{
name: "tagged-remote-source",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: taggedNodeIP,
wantSession: nil,
wantError: errTaggedRemoteSource,
},
{
name: "tagged-local-source",
selfNode: &ipnstate.PeerStatus{ID: "3"},
remoteAddr: taggedNodeIP, // same node as selfNode
wantSession: nil,
wantError: errTaggedLocalSource,
},
{
name: "not-tagged-local-source",
selfNode: &ipnstate.PeerStatus{ID: "1", UserID: userA.ID},
remoteAddr: userANodeIP, // same node as selfNode
cookie: userASession.ID,
wantSession: userASession,
wantError: nil, // should not error
},
{
name: "has-session",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: userANodeIP,
cookie: userASession.ID,
wantSession: userASession,
wantError: nil,
},
{
name: "has-authorized-session",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userA.ID},
remoteAddr: userANodeIP,
cookie: userASessionAuthorized.ID,
wantSession: userASessionAuthorized,
wantError: nil,
wantIsAuthorized: true,
},
{
name: "session-associated-with-different-source",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userB.ID},
remoteAddr: userBNodeIP,
cookie: userASession.ID,
wantSession: nil,
wantError: errNoSession,
},
{
name: "session-expired",
selfNode: &ipnstate.PeerStatus{ID: "self", UserID: userB.ID},
remoteAddr: userBNodeIP,
cookie: userBSession.ID,
wantSession: nil,
wantError: errNoSession,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
selfNode = tt.selfNode
r := &http.Request{RemoteAddr: tt.remoteAddr, Header: http.Header{}}
if tt.cookie != "" {
r.AddCookie(&http.Cookie{Name: sessionCookieName, Value: tt.cookie})
}
session, _, err := s.getSession(r)
if !errors.Is(err, tt.wantError) {
t.Errorf("wrong error; want=%v, got=%v", tt.wantError, err)
}
if diff := cmp.Diff(session, tt.wantSession); diff != "" {
t.Errorf("wrong session; (-got+want):%v", diff)
}
if gotIsAuthorized := session.isAuthorized(s.timeNow()); gotIsAuthorized != tt.wantIsAuthorized {
t.Errorf("wrong isAuthorized; want=%v, got=%v", tt.wantIsAuthorized, gotIsAuthorized)
}
})
}
}
// TestAuthorizeRequest tests the s.authorizeRequest function.
// 2023-10-18: These tests currently cover tailscale auth mode (not platform auth).
func TestAuthorizeRequest(t *testing.T) {
// Create self and remoteNode owned by same user.
// See TestGetTailscaleBrowserSession for tests of
// browser sessions w/ different users.
user := &tailcfg.UserProfile{ID: tailcfg.UserID(1)}
self := &ipnstate.PeerStatus{ID: "self", UserID: user.ID}
remoteNode := &apitype.WhoIsResponse{Node: &tailcfg.Node{StableID: "node"}, UserProfile: user}
remoteIP := "100.100.100.101"
lal := memnet.Listen("local-tailscaled.sock:80")
defer lal.Close()
localapi := mockLocalAPI(t,
map[string]*apitype.WhoIsResponse{remoteIP: remoteNode},
func() *ipnstate.PeerStatus { return self },
)
defer localapi.Close()
go localapi.Serve(lal)
s := &Server{
lc: &tailscale.LocalClient{Dial: lal.Dial},
tsDebugMode: "full",
timeNow: time.Now,
}
validCookie := "ts-cookie"
s.browserSessions.Store(validCookie, &browserSession{
ID: validCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: time.Now(),
Authenticated: true,
})
tests := []struct {
reqPath string
reqMethod string
wantOkNotOverTailscale bool // simulates req over public internet
wantOkWithoutSession bool // simulates req over TS without valid browser session
wantOkWithSession bool // simulates req over TS with valid browser session
}{{
reqPath: "/api/data",
reqMethod: httpm.GET,
wantOkNotOverTailscale: false,
wantOkWithoutSession: true,
wantOkWithSession: true,
}, {
reqPath: "/api/data",
reqMethod: httpm.POST,
wantOkNotOverTailscale: false,
wantOkWithoutSession: false,
wantOkWithSession: true,
}, {
reqPath: "/api/auth",
reqMethod: httpm.GET,
wantOkNotOverTailscale: false,
wantOkWithoutSession: true,
wantOkWithSession: true,
}, {
reqPath: "/api/somethingelse",
reqMethod: httpm.GET,
wantOkNotOverTailscale: false,
wantOkWithoutSession: false,
wantOkWithSession: true,
}, {
reqPath: "/assets/styles.css",
wantOkNotOverTailscale: false,
wantOkWithoutSession: true,
wantOkWithSession: true,
}}
for _, tt := range tests {
t.Run(fmt.Sprintf("%s-%s", tt.reqMethod, tt.reqPath), func(t *testing.T) {
doAuthorize := func(remoteAddr string, cookie string) bool {
r := httptest.NewRequest(tt.reqMethod, tt.reqPath, nil)
r.RemoteAddr = remoteAddr
if cookie != "" {
r.AddCookie(&http.Cookie{Name: sessionCookieName, Value: cookie})
}
w := httptest.NewRecorder()
return s.authorizeRequest(w, r)
}
// Do request from non-Tailscale IP.
if gotOk := doAuthorize("123.456.789.999", ""); gotOk != tt.wantOkNotOverTailscale {
t.Errorf("wantOkNotOverTailscale; want=%v, got=%v", tt.wantOkNotOverTailscale, gotOk)
}
// Do request from Tailscale IP w/o associated session.
if gotOk := doAuthorize(remoteIP, ""); gotOk != tt.wantOkWithoutSession {
t.Errorf("wantOkWithoutSession; want=%v, got=%v", tt.wantOkWithoutSession, gotOk)
}
// Do request from Tailscale IP w/ associated session.
if gotOk := doAuthorize(remoteIP, validCookie); gotOk != tt.wantOkWithSession {
t.Errorf("wantOkWithSession; want=%v, got=%v", tt.wantOkWithSession, gotOk)
}
})
}
}
func TestServeTailscaleAuth(t *testing.T) {
user := &tailcfg.UserProfile{ID: tailcfg.UserID(1)}
self := &ipnstate.PeerStatus{ID: "self", UserID: user.ID}
remoteNode := &apitype.WhoIsResponse{Node: &tailcfg.Node{ID: 1}, UserProfile: user}
remoteIP := "100.100.100.101"
lal := memnet.Listen("local-tailscaled.sock:80")
defer lal.Close()
localapi := mockLocalAPI(t,
map[string]*apitype.WhoIsResponse{remoteIP: remoteNode},
func() *ipnstate.PeerStatus { return self },
)
defer localapi.Close()
go localapi.Serve(lal)
timeNow := time.Now()
oneHourAgo := timeNow.Add(-time.Hour)
sixtyDaysAgo := timeNow.Add(-sessionCookieExpiry * 2)
s := &Server{
lc: &tailscale.LocalClient{Dial: lal.Dial},
tsDebugMode: "full",
timeNow: func() time.Time { return timeNow },
}
successCookie := "ts-cookie-success"
s.browserSessions.Store(successCookie, &browserSession{
ID: successCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: oneHourAgo,
AuthID: testAuthPathSuccess,
AuthURL: testControlURL + testAuthPathSuccess,
})
failureCookie := "ts-cookie-failure"
s.browserSessions.Store(failureCookie, &browserSession{
ID: failureCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: oneHourAgo,
AuthID: testAuthPathError,
AuthURL: testControlURL + testAuthPathError,
})
expiredCookie := "ts-cookie-expired"
s.browserSessions.Store(expiredCookie, &browserSession{
ID: expiredCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: sixtyDaysAgo,
AuthID: "/a/old-auth-url",
AuthURL: testControlURL + "/a/old-auth-url",
})
tests := []struct {
name string
cookie string
query string
wantStatus int
wantResp *authResponse
wantNewCookie bool // new cookie generated
wantSession *browserSession // session associated w/ cookie at end of request
}{
{
name: "new-session-created",
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: false, AuthURL: testControlURL + testAuthPath},
wantNewCookie: true,
wantSession: &browserSession{
ID: "GENERATED_ID", // gets swapped for newly created ID by test
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: timeNow,
AuthID: testAuthPath,
AuthURL: testControlURL + testAuthPath,
Authenticated: false,
},
},
{
name: "query-existing-incomplete-session",
cookie: successCookie,
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: false, AuthURL: testControlURL + testAuthPathSuccess},
wantSession: &browserSession{
ID: successCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: oneHourAgo,
AuthID: testAuthPathSuccess,
AuthURL: testControlURL + testAuthPathSuccess,
Authenticated: false,
},
},
{
name: "transition-to-successful-session",
cookie: successCookie,
// query "wait" indicates the FE wants to make
// local api call to wait until session completed.
query: "wait=true",
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: true},
wantSession: &browserSession{
ID: successCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: oneHourAgo,
AuthID: testAuthPathSuccess,
AuthURL: testControlURL + testAuthPathSuccess,
Authenticated: true,
},
},
{
name: "query-existing-complete-session",
cookie: successCookie,
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: true},
wantSession: &browserSession{
ID: successCookie,
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: oneHourAgo,
AuthID: testAuthPathSuccess,
AuthURL: testControlURL + testAuthPathSuccess,
Authenticated: true,
},
},
{
name: "transition-to-failed-session",
cookie: failureCookie,
query: "wait=true",
wantStatus: http.StatusUnauthorized,
wantResp: nil,
wantSession: nil, // session deleted
},
{
name: "failed-session-cleaned-up",
cookie: failureCookie,
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: false, AuthURL: testControlURL + testAuthPath},
wantNewCookie: true,
wantSession: &browserSession{
ID: "GENERATED_ID",
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: timeNow,
AuthID: testAuthPath,
AuthURL: testControlURL + testAuthPath,
Authenticated: false,
},
},
{
name: "expired-cookie-gets-new-session",
cookie: expiredCookie,
wantStatus: http.StatusOK,
wantResp: &authResponse{OK: false, AuthURL: testControlURL + testAuthPath},
wantNewCookie: true,
wantSession: &browserSession{
ID: "GENERATED_ID",
SrcNode: remoteNode.Node.ID,
SrcUser: user.ID,
Created: timeNow,
AuthID: testAuthPath,
AuthURL: testControlURL + testAuthPath,
Authenticated: false,
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
r := httptest.NewRequest("GET", "/api/auth", nil)
r.URL.RawQuery = tt.query
r.RemoteAddr = remoteIP
r.AddCookie(&http.Cookie{Name: sessionCookieName, Value: tt.cookie})
w := httptest.NewRecorder()
s.serveTailscaleAuth(w, r)
res := w.Result()
defer res.Body.Close()
// Validate response status/data.
if gotStatus := res.StatusCode; tt.wantStatus != gotStatus {
t.Errorf("wrong status; want=%v, got=%v", tt.wantStatus, gotStatus)
}
var gotResp *authResponse
if res.StatusCode == http.StatusOK {
body, err := io.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
if err := json.Unmarshal(body, &gotResp); err != nil {
t.Fatal(err)
}
}
if diff := cmp.Diff(gotResp, tt.wantResp); diff != "" {
t.Errorf("wrong response; (-got+want):%v", diff)
}
// Validate cookie creation.
sessionID := tt.cookie
var gotCookie bool
for _, c := range w.Result().Cookies() {
if c.Name == sessionCookieName {
gotCookie = true
sessionID = c.Value
break
}
}
if gotCookie != tt.wantNewCookie {
t.Errorf("wantNewCookie wrong; want=%v, got=%v", tt.wantNewCookie, gotCookie)
}
// Validate browser session contents.
var gotSesson *browserSession
if s, ok := s.browserSessions.Load(sessionID); ok {
gotSesson = s.(*browserSession)
}
if tt.wantSession != nil && tt.wantSession.ID == "GENERATED_ID" {
// If requested, swap in the generated session ID before
// comparing got/want.
tt.wantSession.ID = sessionID
}
if diff := cmp.Diff(gotSesson, tt.wantSession); diff != "" {
t.Errorf("wrong session; (-got+want):%v", diff)
}
})
}
}
var (
testControlURL = "http://localhost:8080"
testAuthPath = "/a/12345"
testAuthPathSuccess = "/a/will-succeed"
testAuthPathError = "/a/will-error"
)
// mockLocalAPI constructs a test localapi handler that can be used
// to simulate localapi responses without a functioning tailnet.
//
// self accepts a function that resolves to a self node status,
// so that tests may swap out the /localapi/v0/status response
// as desired.
func mockLocalAPI(t *testing.T, whoIs map[string]*apitype.WhoIsResponse, self func() *ipnstate.PeerStatus) *http.Server {
return &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/localapi/v0/whois":
addr := r.URL.Query().Get("addr")
if addr == "" {
t.Fatalf("/whois call missing \"addr\" query")
}
if node := whoIs[addr]; node != nil {
if err := json.NewEncoder(w).Encode(&node); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
return
}
http.Error(w, "not a node", http.StatusUnauthorized)
return
case "/localapi/v0/status":
status := ipnstate.Status{Self: self()}
if err := json.NewEncoder(w).Encode(status); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
return
case "/localapi/v0/debug-web-client": // used by TestServeTailscaleAuth
type reqData struct {
ID string
Src tailcfg.NodeID
}
var data reqData
if err := json.NewDecoder(r.Body).Decode(&data); err != nil {
http.Error(w, "invalid JSON body", http.StatusBadRequest)
return
}
if data.Src == 0 {
http.Error(w, "missing Src node", http.StatusBadRequest)
return
}
var resp *tailcfg.WebClientAuthResponse
if data.ID == "" {
resp = &tailcfg.WebClientAuthResponse{ID: testAuthPath, URL: testControlURL + testAuthPath}
} else if data.ID == testAuthPathSuccess {
resp = &tailcfg.WebClientAuthResponse{Complete: true}
} else if data.ID == testAuthPathError {
http.Error(w, "authenticated as wrong user", http.StatusUnauthorized)
return
}
if err := json.NewEncoder(w).Encode(resp); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
return
default:
t.Fatalf("unhandled localapi test endpoint %q, add to localapi handler func in test", r.URL.Path)
}
})}
}