功能: 新增 SAP HANA 完整备份支持与 Backint 协议代理 (#37)

* chore: ignore web/dist directory in git repository

* 功能: 新增 SAP HANA 完整备份支持与 Backint 协议代理

- 修复 service 层校验 bug，使 SAP HANA 类型可正常创建
- 增强 hdbsql Runner：支持完整/增量/差异/日志备份、并行通道、失败重试
- 新增 Backint 协议代理（backupx backint 子命令），HANA 原生接口直连 BackupX 存储后端
- 新增本地 SQLite 目录维护 EBID↔对象键映射
- 前端新增 SAP HANA 扩展字段表单（备份类型/级别/通道数/重试次数/实例编号）
- README 中英文补充 SAP HANA 两种模式的使用说明

server/internal/backint/agent_test.go

@@ -0,0 +1,217 @@
+package backint
+
+import (
+	"bytes"
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"backupx/server/internal/storage"
+	storageRclone "backupx/server/internal/storage/rclone"
+)
+
+// newTestAgent 构造一个使用本地磁盘后端的 Agent，便于集成测试。
+func newTestAgent(t *testing.T, compress bool) (*Agent, string) {
+	t.Helper()
+	dir := t.TempDir()
+	storageDir := filepath.Join(dir, "storage")
+	if err := os.MkdirAll(storageDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	registry := storage.NewRegistry(storageRclone.NewLocalDiskFactory())
+	provider, err := registry.Create(context.Background(), "local_disk", map[string]any{
+		"basePath": storageDir,
+	})
+	if err != nil {
+		t.Fatalf("create provider: %v", err)
+	}
+	cat, err := OpenCatalog(filepath.Join(dir, "catalog.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	agent := &Agent{
+		cfg:      &Config{StorageType: "local_disk", KeyPrefix: "backint", Compress: compress, CatalogDB: filepath.Join(dir, "catalog.db")},
+		provider: provider,
+		catalog:  cat,
+	}
+	t.Cleanup(func() { _ = agent.Close() })
+	return agent, dir
+}
+
+func TestAgent_BackupAndRestore_File(t *testing.T) {
+	agent, dir := newTestAgent(t, false)
+	ctx := context.Background()
+
+	// 准备源文件
+	src := filepath.Join(dir, "src.bak")
+	content := []byte("hello backint world")
+	if err := os.WriteFile(src, content, 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	// BACKUP
+	inPath := filepath.Join(dir, "backup.in")
+	outPath := filepath.Join(dir, "backup.out")
+	if err := os.WriteFile(inPath, []byte(src+"\n"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := agent.Run(ctx, FunctionBackup, inPath, outPath); err != nil {
+		t.Fatalf("backup: %v", err)
+	}
+	out, _ := os.ReadFile(outPath)
+	if !bytes.HasPrefix(out, []byte("#SAVED ")) {
+		t.Fatalf("expected #SAVED, got: %s", out)
+	}
+	// 提取 EBID：#SAVED <ebid> "<path>"
+	parts := strings.Fields(string(out))
+	if len(parts) < 3 {
+		t.Fatalf("malformed output: %s", out)
+	}
+	ebid := parts[1]
+
+	// RESTORE
+	restoreDst := filepath.Join(dir, "restored.bak")
+	inPath2 := filepath.Join(dir, "restore.in")
+	outPath2 := filepath.Join(dir, "restore.out")
+	if err := os.WriteFile(inPath2, []byte(ebid+" \""+restoreDst+"\"\n"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := agent.Run(ctx, FunctionRestore, inPath2, outPath2); err != nil {
+		t.Fatalf("restore: %v", err)
+	}
+	got, err := os.ReadFile(restoreDst)
+	if err != nil {
+		t.Fatalf("read restored: %v", err)
+	}
+	if !bytes.Equal(got, content) {
+		t.Errorf("restored content mismatch: %q vs %q", got, content)
+	}
+}
+
+func TestAgent_BackupWithCompression(t *testing.T) {
+	agent, dir := newTestAgent(t, true)
+	ctx := context.Background()
+
+	src := filepath.Join(dir, "src.bak")
+	content := bytes.Repeat([]byte("ABCDEFGH"), 1024)
+	if err := os.WriteFile(src, content, 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	inPath := filepath.Join(dir, "backup.in")
+	outPath := filepath.Join(dir, "backup.out")
+	_ = os.WriteFile(inPath, []byte(src+"\n"), 0644)
+	if err := agent.Run(ctx, FunctionBackup, inPath, outPath); err != nil {
+		t.Fatalf("backup: %v", err)
+	}
+	parts := strings.Fields(string(mustRead(t, outPath)))
+	ebid := parts[1]
+
+	// 验证 catalog 记录的对象键以 .gz 结尾
+	entry, _ := agent.catalog.Get(ebid)
+	if entry == nil || !strings.HasSuffix(entry.ObjectKey, ".gz") {
+		t.Fatalf("expected .gz suffix: %+v", entry)
+	}
+
+	// RESTORE 应能解压回原始内容
+	dst := filepath.Join(dir, "restored.bak")
+	in2 := filepath.Join(dir, "restore.in")
+	out2 := filepath.Join(dir, "restore.out")
+	_ = os.WriteFile(in2, []byte(ebid+" \""+dst+"\"\n"), 0644)
+	if err := agent.Run(ctx, FunctionRestore, in2, out2); err != nil {
+		t.Fatalf("restore: %v", err)
+	}
+	got := mustRead(t, dst)
+	if !bytes.Equal(got, content) {
+		t.Errorf("decompressed content mismatch (len=%d vs %d)", len(got), len(content))
+	}
+}
+
+func TestAgent_Inquire(t *testing.T) {
+	agent, dir := newTestAgent(t, false)
+	ctx := context.Background()
+
+	// 注入两条目录记录
+	_ = agent.catalog.Put(CatalogEntry{EBID: "bid-a", ObjectKey: "k/a"})
+	_ = agent.catalog.Put(CatalogEntry{EBID: "bid-b", ObjectKey: "k/b"})
+
+	// INQUIRE #NULL 应列出全部
+	in := filepath.Join(dir, "inq.in")
+	out := filepath.Join(dir, "inq.out")
+	_ = os.WriteFile(in, []byte("#NULL\n"), 0644)
+	if err := agent.Run(ctx, FunctionInquire, in, out); err != nil {
+		t.Fatalf("inquire: %v", err)
+	}
+	text := string(mustRead(t, out))
+	if !strings.Contains(text, "bid-a") || !strings.Contains(text, "bid-b") {
+		t.Errorf("expected both ebids, got: %s", text)
+	}
+
+	// INQUIRE 不存在的 ebid → #NOTFOUND
+	_ = os.WriteFile(in, []byte("bid-missing\n"), 0644)
+	if err := agent.Run(ctx, FunctionInquire, in, out); err != nil {
+		t.Fatalf("inquire missing: %v", err)
+	}
+	text = string(mustRead(t, out))
+	if !strings.Contains(text, "#NOTFOUND") {
+		t.Errorf("expected #NOTFOUND, got: %s", text)
+	}
+}
+
+func TestAgent_Delete(t *testing.T) {
+	agent, dir := newTestAgent(t, false)
+	ctx := context.Background()
+
+	// 先做一次 BACKUP
+	src := filepath.Join(dir, "src.bak")
+	_ = os.WriteFile(src, []byte("data"), 0644)
+	inPath := filepath.Join(dir, "b.in")
+	outPath := filepath.Join(dir, "b.out")
+	_ = os.WriteFile(inPath, []byte(src+"\n"), 0644)
+	if err := agent.Run(ctx, FunctionBackup, inPath, outPath); err != nil {
+		t.Fatal(err)
+	}
+	ebid := strings.Fields(string(mustRead(t, outPath)))[1]
+
+	// DELETE
+	delIn := filepath.Join(dir, "d.in")
+	delOut := filepath.Join(dir, "d.out")
+	_ = os.WriteFile(delIn, []byte(ebid+"\n"), 0644)
+	if err := agent.Run(ctx, FunctionDelete, delIn, delOut); err != nil {
+		t.Fatalf("delete: %v", err)
+	}
+	if !strings.Contains(string(mustRead(t, delOut)), "#DELETED") {
+		t.Errorf("expected #DELETED, got: %s", mustRead(t, delOut))
+	}
+	// catalog 条目应已删除
+	if entry, _ := agent.catalog.Get(ebid); entry != nil {
+		t.Errorf("catalog entry should be removed, got: %+v", entry)
+	}
+}
+
+func TestAgent_RestoreUnknownEBID(t *testing.T) {
+	agent, dir := newTestAgent(t, false)
+	ctx := context.Background()
+
+	in := filepath.Join(dir, "r.in")
+	out := filepath.Join(dir, "r.out")
+	_ = os.WriteFile(in, []byte("bid-unknown \""+filepath.Join(dir, "dst")+"\"\n"), 0644)
+	if err := agent.Run(ctx, FunctionRestore, in, out); err != nil {
+		t.Fatalf("run: %v", err)
+	}
+	if !strings.Contains(string(mustRead(t, out)), "#ERROR") {
+		t.Errorf("expected #ERROR for unknown ebid, got: %s", mustRead(t, out))
+	}
+}
+
+func mustRead(t *testing.T, path string) []byte {
+	t.Helper()
+	b, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("read %s: %v", path, err)
+	}
+	return b
+}