Using djmongoauth

What is it?

djmongoauth provides out-of-the-box support for basic user management and additional operations including user registration, login, logout, email verification, password recovery for backends built with the Django web framework and MongoDB.

djmongoauth is based on djongo, a MongoDB ORM for Django.

Installation

Install djmongoauth through pip:

haotian@u8fZOlcHP:~$ sudo pip3 install djmongoauth

PyPI package can be found at https://pypi.org/project/djmongoauth/0.0.1/

Use cases

User object

User object is the core of the djmongoauth. It represents a authenticable entity. The primary attributes of a default user instance are:

• username
• email
• password
• email_verified
• email_verified_at

Register a new user

def register(request):
    req_body = json.loads(request.body.decode("UTF-8"))
    user = User()
    user.username = req_body["username"]
    user.email = req_body["email"]
    user.password = req_body["password"]
    try:
        user.register()
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)
    return HttpResponse(status=201)

• request.method must be POST
• Body of request must have these attributes and they must be well-formed: username, email, password. Password can be cleartext (djmongoauth takes care of hashing / decryption)

Log in

def login(request):
    try:
        req_body = json.loads(request.body.decode("UTF-8"))
        x_auth_token = User.login(req_body["username"], req_body["password"])
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)
    return JsonResponse({"token": x_auth_token})

• request.method must be POST
• Body of request must have these attributes: username and password
• login() call returns a x_auth_token. This token should be returned to your site's frontend and serve as a basic auth token in the HTTP_AUTHORIZATION header for all subsequent requests till the token expires

Log out

def logout(request):
    try:
        User.logout(request)
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)
    return HttpResponse(status=204)

• request must have its HTTP_AUTHORIATION header set to the x_auth_token returned from login call

Email verification

# handler for verifying email address
def verify_email(request):
    if request.method == "POST":
        return _send_verify_email(request)
    elif request.method == "PUT":
        return _handle_email_verification(request)
    else:
        return HttpResponse(status=405)

def _send_verify_email(request):
    try:
        User.send_email(request, type=EmailTypes.VERIFY)
        return HttpResponse(status=201)
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)

def _handle_email_verification(request):
    try:
        User.handle_email_request(request, EmailTypes.VERIFY)
        return HttpResponse(status=200)
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)

A verification email will be sent to the user's registered email address. Following is a sample verification email:

Hello test_user:

Please use the following link to verify your email address on test.com

https://test.com/verify?a=wMw_qmXu8fZOlcHP1Xpku4e8nuo8rCQim0AHzp5Taqtk0CWq2sThbEMu5kVCcy5leVYDpHKfY6-fMc_4HZBbQg

This link will expire on 2021-09-12 02:04:21 UTC

Thank you for using test.com!

• request must have its HTTP_AUTHORIATION header set to the x_auth_token returned from login call
• To send a verification email, POST this endpoint; to handle a email verification request, PUT this endpoint with parameter a set. Example: PUT https://api.test.com/verify?a=wMw_qmXu8fZOlcHP1Xpku4e8nuo8rCQim0AHzp5Taqtk0CWq2sThbEMu5kVCcy5leVYDpHKfY6-fMc_4HZBbQg
• If using a hosted email domain service (example: GSuite), please ensure that options such as less secure apps are enabled (Gmail)

Password reset

def reset_password(request):
    if request.method == "POST":
        return _send_recovery_email(request)
    elif request.method == "PUT":
        return _handle_password_recovery(request)
    else:
        return HttpResponse(status=405)

def _send_recovery_email(request):
    try:
        User.send_email(request, type=EmailTypes.RESET)
        return HttpResponse(status=200)
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)

def _handle_password_recovery(request):
    try:
        User.handle_email_request(request, EmailTypes.RESET)
        return HttpResponse(status=200)
    except Exception as e:
        return JsonResponse({"error": str(e)}, status=400)

A password reset email will be sent to the user's registered email address. Following is a sample password reset email:

Hello test_user,

A request has been received to change the password for your account on test.com

Please follow this link to reset your password: https://test.com/reset?a=XfNKZT-OXXvvto3fDAyo5l46Ssmx1wQkXzlYGxQKyhFq3FTNve4vrvNYu8b8ha2erghRWtWfwFT5TT7O9xgM6Q

This link will expire on 2021-09-12 02:34:45 UTC

If you did not initiate this request, please ignore this email.

• To send a password reset email, POST this endpoint; to handle a password reset request, PUT this endpoint with parameter a set. Example: PUT https://api.test.com/reset?a=wMw_qmXu8fZOlcHP1Xpku4e8nuo8rCQim0AHzp5Taqtk0CWq2sThbEMu5kVCcy5leVYDpHKfY6-fMc_4HZBbQg
• When PUTting this endpoint, body of request must have these attributes: new_password. new_password can be cleartext (djmongoauth takes care of hashing / decryption)

Decorator

@authenticated

Use this decorator on request handlers, etc. to ensure a user is already logged in

from djmongoauth.decorators.authenticated import authenticated

@authenticated
def my_other_view_handler(request):
    pass 

If a user is not properly authenticated (e.g. not logged in / login session has expired), a DjMongoAuthError will be raised