Use runtime-dir Unix sockets for local gRPC

internal/browserbridge/bridge_test.go

@@ -7,6 +7,8 @@ import (
 	"encoding/json"
 	"os"
 	"path/filepath"
+	"runtime"
+	"strings"
 	"testing"
 
 	keepassgov1 "git.julianfamily.org/keepassgo/proto/keepassgo/v1"
@@ -39,6 +41,9 @@ func TestReadRequestAndWriteResponse(t *testing.T) {
 	if req.Action != "find-logins" || req.BearerToken != "secret" {
 		t.Fatalf("ReadRequest() = %#v, want action and token preserved", req)
 	}
+	if conn, err := req.Connection(); err != nil || conn.GRPCAddress != "127.0.0.1:47777" {
+		t.Fatalf("req.Connection() = (%#v, %v), want explicit tcp address preserved", conn, err)
+	}
 
 	var output bytes.Buffer
 	if err := WriteResponse(&output, Response{Success: true, Version: "1"}); err != nil {
@@ -118,6 +123,22 @@ func TestHandleRequestRequiresBearerToken(t *testing.T) {
 	}
 }
 
+func TestRequestConnectionDefaultsAddress(t *testing.T) {
+	t.Parallel()
+
+	req := Request{Action: "status", BearerToken: "secret"}
+	conn, err := req.Connection()
+	if err != nil {
+		t.Fatalf("Connection() error = %v", err)
+	}
+	if conn.GRPCAddress == "" {
+		t.Fatal("Connection().GRPCAddress = empty, want default address")
+	}
+	if runtime.GOOS != "windows" && !strings.HasPrefix(conn.GRPCAddress, "unix://") && conn.GRPCAddress != "off" {
+		t.Fatalf("Connection().GRPCAddress = %q, want unix socket default on this platform", conn.GRPCAddress)
+	}
+}
+
 func TestInstallManifest(t *testing.T) {
 	t.Parallel()
 
@@ -147,6 +168,19 @@ func TestInstallManifest(t *testing.T) {
 	}
 }
 
+func TestChromiumExtensionIDFromManifestKey(t *testing.T) {
+	t.Parallel()
+
+	const publicKey = "MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAMfW0u1k4K5A0uN2s0aH7uQKpM3x5Hf8mZfY1xVh0m7E2mJ7M8GiV4m0g0I2w9U9D1yqGQ6w8jzH5v8t7qB2RjMCAwEAAQ=="
+	got, err := ChromiumExtensionIDFromManifestKey(publicKey)
+	if err != nil {
+		t.Fatalf("ChromiumExtensionIDFromManifestKey() error = %v", err)
+	}
+	if got != "okcdfigpojphpoecpglkkmkjmiaefmpd" {
+		t.Fatalf("ChromiumExtensionIDFromManifestKey() = %q, want %q", got, "okcdfigpojphpoecpglkkmkjmiaefmpd")
+	}
+}
+
 type fakeClient struct {
 	status     *keepassgov1.GetSessionStatusResponse
 	matches    []*keepassgov1.BrowserLoginMatch