feat: edge gateway service

2026-04-02 19:18:42 +02:00
parent 8cde99936c
commit 436c97a38b
95 changed files with 20504 additions and 57 deletions
@@ -0,0 +1,111 @@
+package authn
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"crypto/rand"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBuildEventSigningInputChangesWhenSignedFieldChanges(t *testing.T) {
+	t.Parallel()
+
+	base := EventSigningFields{
+		EventType:   "gateway.server_time",
+		EventID:     "request-123",
+		TimestampMS: 123456789,
+		RequestID:   "request-123",
+		TraceID:     "trace-123",
+		PayloadHash: mustSHA256([]byte("payload")),
+	}
+
+	baseInput := BuildEventSigningInput(base)
+
+	tests := []struct {
+		name   string
+		mutate func(EventSigningFields) EventSigningFields
+	}{
+		{
+			name: "event type",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.EventType = "gateway.other"
+				return fields
+			},
+		},
+		{
+			name: "event id",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.EventID = "request-456"
+				return fields
+			},
+		},
+		{
+			name: "timestamp",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.TimestampMS++
+				return fields
+			},
+		},
+		{
+			name: "request id",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.RequestID = "request-456"
+				return fields
+			},
+		},
+		{
+			name: "trace id",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.TraceID = "trace-456"
+				return fields
+			},
+		},
+		{
+			name: "payload hash",
+			mutate: func(fields EventSigningFields) EventSigningFields {
+				fields.PayloadHash = mustSHA256([]byte("other"))
+				return fields
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			mutated := BuildEventSigningInput(tt.mutate(base))
+			assert.False(t, bytes.Equal(baseInput, mutated))
+		})
+	}
+}
+
+func TestSignAndVerifyEventSignature(t *testing.T) {
+	t.Parallel()
+
+	_, privateKey, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	signer, err := NewEd25519ResponseSigner(privateKey)
+	require.NoError(t, err)
+
+	fields := EventSigningFields{
+		EventType:   "gateway.server_time",
+		EventID:     "request-123",
+		TimestampMS: 123456789,
+		RequestID:   "request-123",
+		TraceID:     "trace-123",
+		PayloadHash: mustSHA256([]byte("payload")),
+	}
+
+	signature, err := signer.SignEvent(fields)
+	require.NoError(t, err)
+	require.NoError(t, VerifyEventSignature(signer.PublicKey(), signature, fields))
+
+	fields.TraceID = "changed"
+	require.ErrorIs(t, VerifyEventSignature(signer.PublicKey(), signature, fields), ErrInvalidEventSignature)
+}