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client/web: add tests for authorizeRequest

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Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
pull/9838/head
Sonia Appasamy 1 year ago committed by Sonia Appasamy
parent c3a8e63100
commit 851536044a
2 changed files with 138 additions and 35 deletions
Show Stats Download Patch File Download Diff File

2
client/web/web.go
Unescape Escape View File

@ -237,7 +237,7 @@ func (s *Server) authorizeRequest(w http.ResponseWriter, r *http.Request) (ok bo
// Client using system-specific auth.
d := distro.Get()
switch {
case strings.HasPrefix(r.URL.Path, "/assets/"):
case strings.HasPrefix(r.URL.Path, "/assets/") && r.Method == httpm.GET:
// Don't require authorization for static assets.
return true
case d == distro.Synology:

171
client/web/web_test.go
Unescape Escape View File

@ -22,6 +22,7 @@ import (
"tailscale.com/net/memnet"
"tailscale.com/tailcfg"
"tailscale.com/types/views"
"tailscale.com/util/httpm"
)
func TestQnapAuthnURL(t *testing.T) {
@ -124,7 +125,7 @@ func TestServeAPI(t *testing.T) {
res := w.Result()
defer res.Body.Close()
if gotStatus := res.StatusCode; tt.wantStatus != gotStatus {
t.Errorf("wrong status; want=%q, got=%q", tt.wantStatus, gotStatus)
t.Errorf("wrong status; want=%v, got=%v", tt.wantStatus, gotStatus)
}
body, err := io.ReadAll(res.Body)
if err != nil {
@ -164,39 +165,7 @@ func TestGetTailscaleBrowserSession(t *testing.T) {
lal := memnet.Listen("local-tailscaled.sock:80")
defer lal.Close()
// Serve a testing localapi handler so we can simulate
// whois responses without a functioning tailnet.
localapi := &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 := tailnetNodes[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: selfNode}
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
default:
// Only the above two endpoints get triggered from getTailscaleBrowserSession.
// No need to mock any of the other localapi endpoint.
t.Fatalf("unhandled localapi test endpoint %q, add to localapi handler func in test", r.URL.Path)
}
})}
localapi := mockLocalAPI(t, tailnetNodes, func() *ipnstate.PeerStatus { return selfNode })
defer localapi.Close()
go localapi.Serve(lal)
@ -325,3 +294,137 @@ func TestGetTailscaleBrowserSession(t *testing.T) {
})
}
}
// 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",
}
validCookie := "ts-cookie"
s.browserSessions.Store(validCookie, &browserSession{
ID: validCookie,
SrcNode: remoteNode.Node.StableID,
SrcUser: user.ID,
Authenticated: time.Now(),
})
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)
}
})
}
}
// 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
default:
t.Fatalf("unhandled localapi test endpoint %q, add to localapi handler func in test", r.URL.Path)
}
})}
}

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