Redirect query param

[ActiveChooN]

Motivation and context

This PR provide redirect parameter for auth page for redirecting after sucessfull login.

How has this been tested?

Manually

Test scenarios

1. Create some task if not existed
2. Logout and go to /tasks/<task_id> it will redirect to /auth/login?next=/tasks/<task_id>
3. Login
4. Check correct task is opened

Using token login add parameter next manually: /login-with-token/:sessionId/:csrfToken?next=/tasks/<task_id>

Checklist

• I submit my changes into the develop branch
• I have added description of my changes into CHANGELOG file
  - [ ] I have updated the documentation accordingly
  - [ ] I have added tests to cover my changes
  - [ ] I have linked related issues (read github docs)
• I have increased versions of npm packages if it is necessary (cvat-canvas,
  cvat-core, cvat-data and cvat-ui)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.
• I have updated the license header for each file (see an example below)

# Copyright (C) 2020 Intel Corporation
#
# SPDX-License-Identifier: MIT

[coveralls]

Coverage decreased (-0.03%) to 61.824% when pulling e9fc542 on dk/login-redirect into be93804 on develop.

[tdowgiel]

Redirection works fine at first time.
Unfortunately when user is already loged in {cookies are set} It does not redirect to requested page any more

[bsekachev]

Hi, @tdowgiel
Please, try another implementation according to updated PR description.

[tdowgiel]

Hi, Thanks for the update.
Tested on Chrome 87 - macOS (Big Sur) and Windows 10
Unfortunately issue mentioned before still persists:

Steps to reproduce:
1.
Action:
Login to CVAT using ?nexto fo example http://auth/login-with-token/aj52qlbiux7manf8xwkz9etz1ivg8atk/nR9CeVzrL0AZMh8ZuAEzBr6swCeWUVbWT6KfScBbNuCMUW4dU1tU50tKb7ofUp9B?next=/tasks/1
Expecteted and Actual result:
CVAT is logged and page is redirected to /tasks/1
2.
Action:
Open new browser tab and past link once again:
Expected result:
CVAT is logged and page is redirected to /tasks/1
Actual result:
CVAT is logged but page is redirected to /tasks

Regards

[bsekachev]

@tdowgiel
I thought you told about login with UI elements (twice or more) with the redirection query parameter. Anyway, looks like we fixed also login with a token.