[Notifications] Support webhook notifications (#6962)

Add webhook notification support

weed/notification/webhook/http_test.go

@@ -0,0 +1,146 @@
+package webhook
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
+	util_http "github.com/seaweedfs/seaweedfs/weed/util/http"
+)
+
+func init() {
+	util_http.InitGlobalHttpClient()
+}
+
+func TestHttpClientSendMessage(t *testing.T) {
+	var receivedPayload map[string]interface{}
+	var receivedHeaders http.Header
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		receivedHeaders = r.Header
+		body, _ := io.ReadAll(r.Body)
+		if err := json.Unmarshal(body, &receivedPayload); err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer server.Close()
+
+	cfg := &config{
+		endpoint:        server.URL,
+		authBearerToken: "test-token",
+	}
+
+	client, err := newHTTPClient(cfg)
+	if err != nil {
+		t.Fatalf("Failed to create HTTP client: %v", err)
+	}
+
+	message := &filer_pb.EventNotification{
+		OldEntry: nil,
+		NewEntry: &filer_pb.Entry{
+			Name:        "test.txt",
+			IsDirectory: false,
+		},
+	}
+
+	err = client.sendMessage("/test/path", message)
+	if err != nil {
+		t.Fatalf("Failed to send message: %v", err)
+	}
+
+	if receivedPayload["key"] != "/test/path" {
+		t.Errorf("Expected key '/test/path', got %v", receivedPayload["key"])
+	}
+
+	if receivedPayload["message"] == nil {
+		t.Error("Expected message to be present")
+	}
+
+	if receivedHeaders.Get("Content-Type") != "application/json" {
+		t.Errorf("Expected Content-Type 'application/json', got %s", receivedHeaders.Get("Content-Type"))
+	}
+
+	expectedAuth := "Bearer test-token"
+	if receivedHeaders.Get("Authorization") != expectedAuth {
+		t.Errorf("Expected Authorization '%s', got %s", expectedAuth, receivedHeaders.Get("Authorization"))
+	}
+}
+
+func TestHttpClientSendMessageWithoutToken(t *testing.T) {
+	var receivedHeaders http.Header
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		receivedHeaders = r.Header
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer server.Close()
+
+	cfg := &config{
+		endpoint:        server.URL,
+		authBearerToken: "",
+	}
+
+	client, err := newHTTPClient(cfg)
+	if err != nil {
+		t.Fatalf("Failed to create HTTP client: %v", err)
+	}
+
+	message := &filer_pb.EventNotification{}
+
+	err = client.sendMessage("/test/path", message)
+	if err != nil {
+		t.Fatalf("Failed to send message: %v", err)
+	}
+
+	if receivedHeaders.Get("Authorization") != "" {
+		t.Errorf("Expected no Authorization header, got %s", receivedHeaders.Get("Authorization"))
+	}
+}
+
+func TestHttpClientSendMessageServerError(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+	defer server.Close()
+
+	cfg := &config{
+		endpoint:        server.URL,
+		authBearerToken: "test-token",
+	}
+
+	client, err := newHTTPClient(cfg)
+	if err != nil {
+		t.Fatalf("Failed to create HTTP client: %v", err)
+	}
+
+	message := &filer_pb.EventNotification{}
+
+	err = client.sendMessage("/test/path", message)
+	if err == nil {
+		t.Error("Expected error for server error response")
+	}
+}
+
+func TestHttpClientSendMessageNetworkError(t *testing.T) {
+	cfg := &config{
+		endpoint:        "http://localhost:99999",
+		authBearerToken: "",
+	}
+
+	client, err := newHTTPClient(cfg)
+	if err != nil {
+		t.Fatalf("Failed to create HTTP client: %v", err)
+	}
+
+	message := &filer_pb.EventNotification{}
+
+	err = client.sendMessage("/test/path", message)
+	if err == nil {
+		t.Error("Expected error for network failure")
+	}
+}