Something went wrong. Try again.
Monorepo for Tangled tangled.org
Something went wrong. Try again.
2.8 kB · 108 lines
Go
at sl/gitmirror
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109package serververify
import ( "context" "fmt" "net" "net/http" "net/http/httptest" "sync/atomic" "testing" "time")
const ssrfExpectedOwner = "did:plc:ssrfguardexpectedowner"
func TestRunVerificationRejectsNonPublicDestinationsInProd(t *testing.T) { loopbackDomain, loopbackHits := localOwnerEndpoint(t, "127.0.0.1")
cases := []struct { name string domain string hits *atomic.Int32 }{ { name: "loopback address with a real owner endpoint", domain: loopbackDomain, hits: loopbackHits, }, { name: "private address", domain: "10.0.0.1:80", }, { name: "link-local metadata address", domain: "169.254.169.254:80", }, { name: "reserved unspecified address", domain: "0.0.0.0:80", }, }
for _, tc := range cases { t.Run(tc.name, func(t *testing.T) { if tc.hits != nil { tc.hits.Store(0) }
ctx, cancel := context.WithTimeout(context.Background(), 750*time.Millisecond) defer cancel()
started := time.Now() err := RunVerification(ctx, tc.domain, ssrfExpectedOwner, false) elapsed := time.Since(started)
if err == nil { t.Fatalf("RunVerification(%q, dev=false) succeeded; non-public destinations must be refused", tc.domain) } if elapsed > 250*time.Millisecond { t.Fatalf("RunVerification(%q, dev=false) took %s; want an immediate SSRF refusal, not network IO until timeout", tc.domain, elapsed) } if tc.hits != nil && tc.hits.Load() != 0 { t.Fatalf("RunVerification(%q, dev=false) reached the owner endpoint %d time(s); guard must refuse before normal network IO", tc.domain, tc.hits.Load()) } }) }}
func TestRunVerificationAllowsNonPublicDestinationsInDev(t *testing.T) { loopbackDomain, loopbackHits := localOwnerEndpoint(t, "127.0.0.1")
ctx, cancel := context.WithTimeout(context.Background(), 750*time.Millisecond) defer cancel()
err := RunVerification(ctx, loopbackDomain, ssrfExpectedOwner, true) if err != nil { t.Fatalf("RunVerification(%q, dev=true) failed: %v", loopbackDomain, err) }
if loopbackHits.Load() != 1 { t.Fatalf("RunVerification(%q, dev=true) did not reach owner endpoint", loopbackDomain) }}
func localOwnerEndpoint(t *testing.T, host string) (string, *atomic.Int32) { t.Helper()
ln, err := net.Listen("tcp", net.JoinHostPort(host, "0")) if err != nil { t.Fatalf("listen on %s: %v", host, err) }
var hits atomic.Int32 server := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { hits.Add(1) if r.URL.Path != "/xrpc/sh.tangled.owner" { http.NotFound(w, r) return } w.Header().Set("Content-Type", "application/json") fmt.Fprintf(w, `{"owner":%q}`, ssrfExpectedOwner) })) server.Listener = ln server.Start() t.Cleanup(server.Close)
return ln.Addr().String(), &hits}