ld
e2af482cc9
- Implement FileHandler with CRUD operations for files/directories - Add FileService with business logic and SHA-256 hashing - Create LocalStorage backend for filesystem persistence - Add database repository with pagination and name uniqueness constraints - Configure max upload size in storage settings - Include comprehensive tests for all layers
440 lines
12 KiB
Go
440 lines
12 KiB
Go
package handler
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import (
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"bytes"
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"context"
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"encoding/json"
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"io"
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"mime/multipart"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/gin-gonic/gin"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"github.com/dhao2001/mygo/internal/model"
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"github.com/dhao2001/mygo/internal/repository"
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"github.com/dhao2001/mygo/internal/service"
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"github.com/dhao2001/mygo/internal/storage"
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)
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// inMemStore implements storage.StorageBackend with an in-memory map.
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type inMemStore struct {
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files map[string][]byte
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}
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func newInMemStore() *inMemStore {
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return &inMemStore{files: make(map[string][]byte)}
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}
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func (s *inMemStore) Save(_ context.Context, path string, reader io.Reader) (int64, error) {
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data, err := io.ReadAll(reader)
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if err != nil {
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return 0, err
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}
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s.files[path] = data
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return int64(len(data)), nil
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}
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func (s *inMemStore) Open(_ context.Context, path string) (io.ReadCloser, error) {
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data, ok := s.files[path]
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if !ok {
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return nil, &fsNotFoundError{path}
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}
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return io.NopCloser(bytes.NewReader(data)), nil
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}
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func (s *inMemStore) Delete(_ context.Context, path string) error {
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delete(s.files, path)
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return nil
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}
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type fsNotFoundError struct{ path string }
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func (e *fsNotFoundError) Error() string { return "file not found on disk: " + e.path }
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var _ storage.StorageBackend = (*inMemStore)(nil)
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func setupFileHandler(t *testing.T) *FileHandler {
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t.Helper()
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db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
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if err != nil {
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t.Fatalf("open db: %v", err)
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}
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if err := db.AutoMigrate(&model.File{}); err != nil {
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t.Fatalf("migrate: %v", err)
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}
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fileRepo := repository.NewFileRepository(db)
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store := newInMemStore()
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fileService := service.NewFileService(fileRepo, store, 0)
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return NewFileHandler(fileService)
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}
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func setupFileRouter(t *testing.T) *gin.Engine {
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t.Helper()
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handler := setupFileHandler(t)
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gin.SetMode(gin.TestMode)
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r := gin.New()
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// Middleware that injects user_id from header (simulates AuthRequired).
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r.Use(func(c *gin.Context) {
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userID := c.GetHeader("X-User-ID")
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if userID != "" {
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c.Set("user_id", userID)
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}
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c.Next()
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})
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files := r.Group("/api/v1/files")
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{
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files.GET("", handler.List)
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files.POST("", handler.Upload)
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files.GET("/:id", handler.Get)
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files.GET("/:id/content", handler.Download)
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files.PUT("/:id", handler.Update)
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files.DELETE("/:id", handler.Delete)
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}
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return r
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}
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func TestFileHandler_Upload(t *testing.T) {
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r := setupFileRouter(t)
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "test.txt")
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part.Write([]byte("hello upload"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusCreated {
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t.Errorf("status = %d, want %d; body = %s", rec.Code, http.StatusCreated, rec.Body.String())
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}
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var info service.FileInfo
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if err := json.Unmarshal(rec.Body.Bytes(), &info); err != nil {
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t.Fatalf("unmarshal: %v", err)
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}
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if info.Name != "test.txt" {
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t.Errorf("Name = %q, want %q", info.Name, "test.txt")
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}
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}
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func TestFileHandler_UploadNoFile(t *testing.T) {
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r := setupFileRouter(t)
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusBadRequest {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusBadRequest)
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}
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}
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func TestFileHandler_CreateDir(t *testing.T) {
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r := setupFileRouter(t)
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body, _ := json.Marshal(gin.H{"name": "mydir"})
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", bytes.NewReader(body))
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusCreated {
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t.Errorf("status = %d, want %d; body = %s", rec.Code, http.StatusCreated, rec.Body.String())
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}
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var info service.FileInfo
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if err := json.Unmarshal(rec.Body.Bytes(), &info); err != nil {
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t.Fatalf("unmarshal: %v", err)
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}
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if !info.IsDir {
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t.Error("IsDir should be true")
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}
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}
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func TestFileHandler_List(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file first.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "file1.txt")
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part.Write([]byte("content1"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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// List files.
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req = httptest.NewRequest(http.MethodGet, "/api/v1/files", nil)
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusOK {
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t.Errorf("status = %d, want %d; body = %s", rec.Code, http.StatusOK, rec.Body.String())
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}
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var list service.FileList
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if err := json.Unmarshal(rec.Body.Bytes(), &list); err != nil {
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t.Fatalf("unmarshal: %v", err)
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}
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if list.Total != 1 {
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t.Errorf("Total = %d, want 1", list.Total)
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}
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}
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func TestFileHandler_Get(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file first.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "info.txt")
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part.Write([]byte("file info content"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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// Get metadata.
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req = httptest.NewRequest(http.MethodGet, "/api/v1/files/"+uploaded.ID, nil)
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusOK {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusOK)
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}
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var info service.FileInfo
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if err := json.Unmarshal(rec.Body.Bytes(), &info); err != nil {
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t.Fatalf("unmarshal: %v", err)
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}
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if info.ID != uploaded.ID {
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t.Errorf("ID = %q, want %q", info.ID, uploaded.ID)
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}
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}
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func TestFileHandler_GetNotFound(t *testing.T) {
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r := setupFileRouter(t)
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req := httptest.NewRequest(http.MethodGet, "/api/v1/files/nonexistent", nil)
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusNotFound {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusNotFound)
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}
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}
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func TestFileHandler_Download(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "download.txt")
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content := []byte("download me please")
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part.Write(content)
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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// Download.
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req = httptest.NewRequest(http.MethodGet, "/api/v1/files/"+uploaded.ID+"/content", nil)
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusOK {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusOK)
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}
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if !bytes.Equal(rec.Body.Bytes(), content) {
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t.Errorf("content = %q, want %q", rec.Body.String(), content)
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}
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if rec.Header().Get("Content-Disposition") == "" {
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t.Error("Content-Disposition header should be set")
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}
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}
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func TestFileHandler_Update(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "oldname.txt")
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part.Write([]byte("content"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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// Rename.
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updateBody, _ := json.Marshal(gin.H{"name": "newname.txt"})
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req = httptest.NewRequest(http.MethodPut, "/api/v1/files/"+uploaded.ID, bytes.NewReader(updateBody))
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusOK {
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t.Errorf("status = %d, want %d; body = %s", rec.Code, http.StatusOK, rec.Body.String())
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}
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var updated service.FileInfo
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if err := json.Unmarshal(rec.Body.Bytes(), &updated); err != nil {
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t.Fatalf("unmarshal: %v", err)
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}
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if updated.Name != "newname.txt" {
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t.Errorf("Name = %q, want %q", updated.Name, "newname.txt")
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}
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}
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func TestFileHandler_UpdateNoFields(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "file.txt")
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part.Write([]byte("content"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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updateBody, _ := json.Marshal(gin.H{})
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req = httptest.NewRequest(http.MethodPut, "/api/v1/files/"+uploaded.ID, bytes.NewReader(updateBody))
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusBadRequest {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusBadRequest)
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}
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}
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func TestFileHandler_Delete(t *testing.T) {
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r := setupFileRouter(t)
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// Upload a file.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "delete-me.txt")
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part.Write([]byte("content"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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// Delete.
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req = httptest.NewRequest(http.MethodDelete, "/api/v1/files/"+uploaded.ID, nil)
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusNoContent {
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t.Errorf("status = %d, want %d; body = %s", rec.Code, http.StatusNoContent, rec.Body.String())
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}
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// Verify gone.
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req = httptest.NewRequest(http.MethodGet, "/api/v1/files/"+uploaded.ID, nil)
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req.Header.Set("X-User-ID", "user1")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusNotFound {
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t.Errorf("status after delete = %d, want %d", rec.Code, http.StatusNotFound)
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}
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}
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func TestFileHandler_ForbiddenAccess(t *testing.T) {
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r := setupFileRouter(t)
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// Upload as user1.
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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part, _ := writer.CreateFormFile("file", "private.txt")
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part.Write([]byte("secret"))
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writer.Close()
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req := httptest.NewRequest(http.MethodPost, "/api/v1/files", body)
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req.Header.Set("Content-Type", writer.FormDataContentType())
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req.Header.Set("X-User-ID", "user1")
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rec := httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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var uploaded service.FileInfo
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json.Unmarshal(rec.Body.Bytes(), &uploaded)
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// Try to access as user2.
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req = httptest.NewRequest(http.MethodGet, "/api/v1/files/"+uploaded.ID, nil)
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req.Header.Set("X-User-ID", "user2")
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rec = httptest.NewRecorder()
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r.ServeHTTP(rec, req)
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if rec.Code != http.StatusForbidden {
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t.Errorf("status = %d, want %d", rec.Code, http.StatusForbidden)
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}
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}
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