abstract rest.UploadedFile to allow loading local files

tools/filesystem/file_test.go

@@ -0,0 +1,79 @@
+package filesystem_test
+
+import (
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"regexp"
+	"testing"
+
+	"github.com/labstack/echo/v5"
+	"github.com/pocketbase/pocketbase/tests"
+	"github.com/pocketbase/pocketbase/tools/filesystem"
+)
+
+func TestNewFileFromFromPath(t *testing.T) {
+	testDir := createTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	// missing file
+	_, err := filesystem.NewFileFromPath("missing")
+	if err == nil {
+		t.Fatal("Expected error, got nil")
+	}
+
+	// existing file
+	originalName := "image_! noext"
+	normalizedNamePattern := regexp.QuoteMeta("image_noext_") + `\w{10}` + regexp.QuoteMeta(".png")
+	f, err := filesystem.NewFileFromPath(filepath.Join(testDir, originalName))
+	if err != nil {
+		t.Fatalf("Expected nil error, got %v", err)
+	}
+	if f.OriginalName != originalName {
+		t.Fatalf("Expected originalName %q, got %q", originalName, f.OriginalName)
+	}
+	if match, _ := regexp.Match(normalizedNamePattern, []byte(f.Name)); !match {
+		t.Fatalf("Expected Name to match %v, got %q (%v)", normalizedNamePattern, f.Name, err)
+	}
+	if f.Size != 73 {
+		t.Fatalf("Expected Size %v, got %v", 73, f.Size)
+	}
+	if _, ok := f.Reader.(*filesystem.PathReader); !ok {
+		t.Fatalf("Expected Reader to be PathReader, got %v", f.Reader)
+	}
+}
+
+func TestNewFileFromMultipart(t *testing.T) {
+	formData, mp, err := tests.MockMultipartData(nil, "test")
+	req := httptest.NewRequest("", "/", formData)
+	req.Header.Set(echo.HeaderContentType, mp.FormDataContentType())
+	req.ParseMultipartForm(32 << 20)
+
+	_, mh, err := req.FormFile("test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	f, err := filesystem.NewFileFromMultipart(mh)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	originalNamePattern := regexp.QuoteMeta("tmpfile-") + `\w+` + regexp.QuoteMeta(".txt")
+	if match, _ := regexp.Match(originalNamePattern, []byte(f.OriginalName)); !match {
+		t.Fatalf("Expected OriginalName to match %v, got %q (%v)", originalNamePattern, f.OriginalName, err)
+	}
+
+	normalizedNamePattern := regexp.QuoteMeta("tmpfile_") + `\w+\_\w{10}` + regexp.QuoteMeta(".txt")
+	if match, _ := regexp.Match(normalizedNamePattern, []byte(f.Name)); !match {
+		t.Fatalf("Expected Name to match %v, got %q (%v)", normalizedNamePattern, f.Name, err)
+	}
+
+	if f.Size != 4 {
+		t.Fatalf("Expected Size %v, got %v", 4, f.Size)
+	}
+
+	if _, ok := f.Reader.(*filesystem.MultipartReader); !ok {
+		t.Fatalf("Expected Reader to be MultipartReader, got %v", f.Reader)
+	}
+}