User Data Export and import (#967)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/967
Co-authored-by: konrad <k@knt.li>
Co-committed-by: konrad <k@knt.li>

pkg/modules/migration/handler/common.go

@@ -0,0 +1,40 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public Licensee as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package handler
+
+import (
+	"net/http"
+
+	"code.vikunja.io/api/pkg/modules/migration"
+	user2 "code.vikunja.io/api/pkg/user"
+	"code.vikunja.io/web/handler"
+	"github.com/labstack/echo/v4"
+)
+
+func status(ms migration.MigratorName, c echo.Context) error {
+	user, err := user2.GetCurrentUser(c)
+	if err != nil {
+		return handler.HandleHTTPError(err, c)
+	}
+
+	status, err := migration.GetMigrationStatus(ms, user)
+	if err != nil {
+		return handler.HandleHTTPError(err, c)
+	}
+
+	return c.JSON(http.StatusOK, status)
+}

pkg/modules/migration/handler/handler.go

@@ -84,15 +84,5 @@ func (mw *MigrationWeb) Migrate(c echo.Context) error {
 func (mw *MigrationWeb) Status(c echo.Context) error {
 	ms := mw.MigrationStruct()
 
-	user, err := user2.GetCurrentUser(c)
-	if err != nil {
-		return handler.HandleHTTPError(err, c)
-	}
-
-	status, err := migration.GetMigrationStatus(ms, user)
-	if err != nil {
-		return handler.HandleHTTPError(err, c)
-	}
-
-	return c.JSON(http.StatusOK, status)
+	return status(ms, c)
 }

pkg/modules/migration/handler/handler_file.go

@@ -0,0 +1,79 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public Licensee as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package handler
+
+import (
+	"net/http"
+
+	"code.vikunja.io/api/pkg/models"
+	"code.vikunja.io/api/pkg/modules/migration"
+	user2 "code.vikunja.io/api/pkg/user"
+	"code.vikunja.io/web/handler"
+	"github.com/labstack/echo/v4"
+)
+
+type FileMigratorWeb struct {
+	MigrationStruct func() migration.FileMigrator
+}
+
+// RegisterRoutes registers all routes for migration
+func (fw *FileMigratorWeb) RegisterRoutes(g *echo.Group) {
+	ms := fw.MigrationStruct()
+	g.GET("/"+ms.Name()+"/status", fw.Status)
+	g.PUT("/"+ms.Name()+"/migrate", fw.Migrate)
+}
+
+// Migrate calls the migration method
+func (fw *FileMigratorWeb) Migrate(c echo.Context) error {
+	ms := fw.MigrationStruct()
+
+	// Get the user from context
+	user, err := user2.GetCurrentUser(c)
+	if err != nil {
+		return handler.HandleHTTPError(err, c)
+	}
+
+	file, err := c.FormFile("import")
+	if err != nil {
+		return err
+	}
+	src, err := file.Open()
+	if err != nil {
+		return err
+	}
+	defer src.Close()
+
+	// Do the migration
+	err = ms.Migrate(user, src, file.Size)
+	if err != nil {
+		return handler.HandleHTTPError(err, c)
+	}
+
+	err = migration.SetMigrationStatus(ms, user)
+	if err != nil {
+		return handler.HandleHTTPError(err, c)
+	}
+
+	return c.JSON(http.StatusOK, models.Message{Message: "Everything was migrated successfully."})
+}
+
+// Status returns whether or not a user has already done this migration
+func (fw *FileMigratorWeb) Status(c echo.Context) error {
+	ms := fw.MigrationStruct()
+
+	return status(ms, c)
+}