feat(backup): Add backup/restore to the server

api/http/handler/backup/backup_test.go

@@ -0,0 +1,121 @@
+package backup
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/portainer/portainer/api/adminmonitor"
+	"github.com/portainer/portainer/api/crypto"
+	"github.com/portainer/portainer/api/http/offlinegate"
+	i "github.com/portainer/portainer/api/internal/testhelpers"
+	"github.com/stretchr/testify/assert"
+)
+
+func listFiles(dir string) []string {
+	items := make([]string, 0)
+	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if path == dir {
+			return nil
+		}
+		items = append(items, path)
+		return nil
+	})
+
+	return items
+}
+
+func contains(t *testing.T, list []string, path string) {
+	assert.Contains(t, list, path)
+	copyContent, _ := ioutil.ReadFile(path)
+	assert.Equal(t, "content\n", string(copyContent))
+}
+
+func Test_backupHandlerWithoutPassword_shouldCreateATarballArchive(t *testing.T) {
+	r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(`{"password":""}`))
+	w := httptest.NewRecorder()
+
+	gate := offlinegate.NewOfflineGate()
+	adminMonitor := adminmonitor.New(time.Hour, nil, context.Background())
+
+	handlerErr := NewHandler(nil, i.NewDatastore(), gate, "./test_assets/handler_test", func() {}, adminMonitor).backup(w, r)
+	assert.Nil(t, handlerErr, "Handler should not fail")
+
+	response := w.Result()
+	body, _ := io.ReadAll(response.Body)
+
+	tmpdir, _ := os.MkdirTemp("", "backup")
+	defer os.RemoveAll(tmpdir)
+
+	archivePath := filepath.Join(tmpdir, "archive.tar.gz")
+	err := ioutil.WriteFile(archivePath, body, 0600)
+	if err != nil {
+		t.Fatal("Failed to save downloaded .tar.gz archive: ", err)
+	}
+	cmd := exec.Command("tar", "-xzf", archivePath, "-C", tmpdir)
+	err = cmd.Run()
+	if err != nil {
+		t.Fatal("Failed to extract archive: ", err)
+	}
+
+	createdFiles := listFiles(tmpdir)
+
+	contains(t, createdFiles, path.Join(tmpdir, "portainer.key"))
+	contains(t, createdFiles, path.Join(tmpdir, "portainer.pub"))
+	contains(t, createdFiles, path.Join(tmpdir, "tls", "file1"))
+	contains(t, createdFiles, path.Join(tmpdir, "tls", "file2"))
+	assert.NotContains(t, createdFiles, path.Join(tmpdir, "extra_file"))
+	assert.NotContains(t, createdFiles, path.Join(tmpdir, "extra_folder", "file1"))
+}
+
+func Test_backupHandlerWithPassword_shouldCreateEncryptedATarballArchive(t *testing.T) {
+	r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(`{"password":"secret"}`))
+	w := httptest.NewRecorder()
+
+	gate := offlinegate.NewOfflineGate()
+	adminMonitor := adminmonitor.New(time.Hour, nil, nil)
+
+	handlerErr := NewHandler(nil, i.NewDatastore(), gate, "./test_assets/handler_test", func() {}, adminMonitor).backup(w, r)
+	assert.Nil(t, handlerErr, "Handler should not fail")
+
+	response := w.Result()
+	body, _ := io.ReadAll(response.Body)
+
+	tmpdir, _ := os.MkdirTemp("", "backup")
+	defer os.RemoveAll(tmpdir)
+
+	dr, err := crypto.AesDecrypt(bytes.NewReader(body), []byte("secret"))
+	if err != nil {
+		t.Fatal("Failed to decrypt archive")
+	}
+
+	archivePath := filepath.Join(tmpdir, "archive.tag.gz")
+	archive, _ := os.Create(archivePath)
+	defer archive.Close()
+	io.Copy(archive, dr)
+
+	cmd := exec.Command("tar", "-xzf", archivePath, "-C", tmpdir)
+	err = cmd.Run()
+	if err != nil {
+		t.Fatal("Failed to extract archive: ", err)
+	}
+
+	createdFiles := listFiles(tmpdir)
+
+	contains(t, createdFiles, path.Join(tmpdir, "portainer.key"))
+	contains(t, createdFiles, path.Join(tmpdir, "portainer.pub"))
+	contains(t, createdFiles, path.Join(tmpdir, "tls", "file1"))
+	contains(t, createdFiles, path.Join(tmpdir, "tls", "file2"))
+	assert.NotContains(t, createdFiles, path.Join(tmpdir, "extra_file"))
+	assert.NotContains(t, createdFiles, path.Join(tmpdir, "extra_folder", "file1"))
+}