feat: add WebView support for extension (#1359)

internal/webview/rpcprovider/provider_socket_test.go

@@ -0,0 +1,50 @@
+package rpcprovider
+
+import (
+	"encoding/json"
+	"net"
+	"net/http"
+	"os"
+	"path/filepath"
+	"testing"
+
+	enginewebview "github.com/GopeedLab/gopeed/pkg/download/engine/webview"
+)
+
+func TestProviderIsAvailableOverUnixSocket(t *testing.T) {
+	socketPath := filepath.Join("/tmp", "gopeed-rpcwebview-"+t.Name()+".sock")
+	listener, err := net.Listen("unix", socketPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer listener.Close()
+	defer os.Remove(socketPath)
+
+	server := &http.Server{
+		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			var req enginewebview.RPCRequest
+			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+				t.Fatal(err)
+			}
+			if req.Method != enginewebview.MethodIsAvailable {
+				t.Fatalf("unexpected unix method: %s", req.Method)
+			}
+			if err := json.NewEncoder(w).Encode(map[string]any{
+				"result": enginewebview.IsAvailableResult{Available: true},
+				"error":  nil,
+			}); err != nil {
+				t.Fatal(err)
+			}
+		}),
+	}
+	defer server.Close()
+	go server.Serve(listener)
+
+	provider := New(enginewebview.RPCConfig{
+		Network: "unix",
+		Address: socketPath,
+	})
+	if !provider.IsAvailable() {
+		t.Fatal("expected unix provider to be available")
+	}
+}