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package api
import (
"bytes"
"encoding/json"
"mime/multipart"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"testing"
)
func testServerWithDrops(t *testing.T) (*Server, string) {
t.Helper()
srv, _ := testServer(t)
dropsDir := t.TempDir()
srv.SetDropsDir(dropsDir)
return srv, dropsDir
}
func TestHandleListDrops_Empty(t *testing.T) {
srv, _ := testServerWithDrops(t)
req := httptest.NewRequest("GET", "/api/drops", nil)
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("want 200, got %d", rec.Code)
}
var files []map[string]interface{}
if err := json.NewDecoder(rec.Body).Decode(&files); err != nil {
t.Fatalf("decode response: %v", err)
}
if len(files) != 0 {
t.Errorf("want empty list, got %d entries", len(files))
}
}
func TestHandleListDrops_WithFile(t *testing.T) {
srv, dropsDir := testServerWithDrops(t)
// Create a file in the drops dir.
if err := os.WriteFile(filepath.Join(dropsDir, "hello.txt"), []byte("world"), 0600); err != nil {
t.Fatal(err)
}
req := httptest.NewRequest("GET", "/api/drops", nil)
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("want 200, got %d: %s", rec.Code, rec.Body.String())
}
var files []map[string]interface{}
if err := json.NewDecoder(rec.Body).Decode(&files); err != nil {
t.Fatalf("decode response: %v", err)
}
if len(files) != 1 {
t.Fatalf("want 1 file, got %d", len(files))
}
if files[0]["name"] != "hello.txt" {
t.Errorf("name: want %q, got %v", "hello.txt", files[0]["name"])
}
}
func TestHandlePostDrop_Multipart(t *testing.T) {
srv, dropsDir := testServerWithDrops(t)
var buf bytes.Buffer
w := multipart.NewWriter(&buf)
fw, err := w.CreateFormFile("file", "test.txt")
if err != nil {
t.Fatal(err)
}
fw.Write([]byte("hello world")) //nolint:errcheck
w.Close()
req := httptest.NewRequest("POST", "/api/drops", &buf)
req.Header.Set("Content-Type", w.FormDataContentType())
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
if rec.Code != http.StatusCreated {
t.Fatalf("want 201, got %d: %s", rec.Code, rec.Body.String())
}
var resp map[string]interface{}
if err := json.NewDecoder(rec.Body).Decode(&resp); err != nil {
t.Fatalf("decode response: %v", err)
}
if resp["name"] != "test.txt" {
t.Errorf("name: want %q, got %v", "test.txt", resp["name"])
}
// Verify file was created on disk.
content, err := os.ReadFile(filepath.Join(dropsDir, "test.txt"))
if err != nil {
t.Fatalf("reading uploaded file: %v", err)
}
if string(content) != "hello world" {
t.Errorf("content: want %q, got %q", "hello world", content)
}
}
func TestHandleGetDrop_Download(t *testing.T) {
srv, dropsDir := testServerWithDrops(t)
if err := os.WriteFile(filepath.Join(dropsDir, "download.txt"), []byte("download me"), 0600); err != nil {
t.Fatal(err)
}
req := httptest.NewRequest("GET", "/api/drops/download.txt", nil)
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("want 200, got %d", rec.Code)
}
cd := rec.Header().Get("Content-Disposition")
if !strings.Contains(cd, "attachment") {
t.Errorf("want Content-Disposition: attachment, got %q", cd)
}
if rec.Body.String() != "download me" {
t.Errorf("body: want %q, got %q", "download me", rec.Body.String())
}
}
func TestHandleGetDrop_PathTraversal(t *testing.T) {
srv, _ := testServerWithDrops(t)
// Attempt path traversal — should be rejected.
req := httptest.NewRequest("GET", "/api/drops/..%2Fetc%2Fpasswd", nil)
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
// The Go net/http router will handle %2F-encoded slashes as literal characters,
// so the filename becomes "../etc/passwd". Our handler should reject it.
if rec.Code == http.StatusOK {
t.Error("expected non-200 for path traversal attempt")
}
}
func TestHandleGetDrop_NotFound(t *testing.T) {
srv, _ := testServerWithDrops(t)
req := httptest.NewRequest("GET", "/api/drops/notexist.txt", nil)
rec := httptest.NewRecorder()
srv.mux.ServeHTTP(rec, req)
if rec.Code != http.StatusNotFound {
t.Fatalf("want 404, got %d", rec.Code)
}
}
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