django-phone-verify

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A Django app to support phone number verification using the security code sent via SMS.

Salient Features

• Lets you verify phone numbers via SMS.
• Extensibility to provide tokens with varying length.
• Comes with Twilio already integrated.
• Set expiration time on tokens.
• Provides an interface for writing custom SMS sending backend for easy extensibility.
• Does not mess-up with existing AUTH_USER_MODEL at all.
• Can be used for a number of potential use-cases, and not just auth.
• Provides ready endpoints for sending SMS and verification (See api_endpoints.rst_).

.. _api_endpoints.rst: https://github.com/CuriousLearner/django-phone-verify/blob/master/phone_verify/docs/api_endpoints.rst

Installation

.. code-block:: shell

pip install django-phone-verify

Configuration

• Add app to INSTALLED_APPS

.. code-block:: python

# In settings.py:

# Add app to `INSTALLED_APPS`
INSTALLED_APPS = [
    ...
    "phone_verify",
]

• Add settings for Phone Verify as you desire:

.. code-block:: python

# In settings.py
# Add settings for phone_verify to work
PHONE_VERIFICATION = {
    "BACKEND": "phone_verify.backends.twilio.TwilioBackend",
    "OPTIONS": {
        "SID": "fake",
        "SECRET": "fake",
        "FROM": "+14755292729",
        "SANDBOX_TOKEN": "123456",
    },
    "TOKEN_LENGTH": 6,
    "MESSAGE": "Welcome to {app}! Please use security code {security_code} to proceed.",
    "APP_NAME": "Phone Verify",
    "SECURITY_CODE_EXPIRATION_TIME": 3600,  # In seconds only
    "VERIFY_SECURITY_CODE_ONLY_ONCE": False,  # If False, then a security code can be used multiple times for verification
}

Usage

• To explore more about how to use, integrate and leverage existing functionality of Django Phone Verify, have a look at usage.rst_

.. _usage.rst: https://github.com/CuriousLearner/django-phone-verify/blob/master/docs/usage.rst

Note: Django Phone Verfiy also provides Nexmo as a backend service other than Twilio. To switch to Nexmo, replace BACKEND within your PHONE_VERIFICATION setting with phone_verify.backends.nexmo.NexmoBackend and define KEY within OPTIONS of PHONE_VERIFICATION setting, with your nexmo API key, in place of already available SID.

Compatibility

• Django 2.1+
• Django REST Framework 3.9+

Contributing

No code is bug-free and I'm sure this app will have bugs. If you find any bugs, please create an issue on GitHub.

Licence

GPLv3

Release Notes

[2.0.0] ^^^^^^^

NOTE: Previous version of this library provided the security_code in the JWT session_token. You would have to re-verify phone_numbers in this version to ensure they are authentically verified.

Added """""

• Tests added to provide 100% coverage on the package.
• Add nexmo.errors.ClientError as exception class in phone_verify.backends.nexmo.NexmoBackend & phone_verify.backends.nexmo.NexmoSandboxBackend.

Changed """""""

• Method signature changed for phone_verify.backends.BaseBackend.generate_session_token. It now accepts only phone_number instead of combination of phone_number and security_code.
• Remove the security_code from JWT session_token to avoid leaking information.
• Add nonce in session_token to generate unique tokens for each phone_number.
• Fixes call to phone_verify.backends.nexmo.NexmoBackend.send_sms method.

[1.1.0] ^^^^^^^

Added """""

• Support Nexmo as a backend service alongwith Twilio.
• Add docs for writing custom backend.

Changed """""""

• Update backends.base.BaseBackend.validate_security_code to use save() instead of update() to allow Django to emit its post_save() signal.

[1.0.0] ^^^^^^^

Added """""

• Add coverage report through coveralls.
• Support for One-Time Passwords (OTP) using VERIFY_SECURITY_CODE_ONLY_ONCE as True in the settings.
• Script to support makemigrations for development.
• BaseBackend status now have SECURITY_CODE_VERIFIED and SESSION_TOKEN_INVALID status to support new states.

Changed """""""

• Rename TWILIO_SANDBOX_TOKEN to SANDBOX_TOKEN.
• Fix signature for send_bulk_sms method in TwilioBackend and TwilioSandboxBackend.
• Response for /api/phone/register contains key session_token instead of session_code.
• Request payload for /api/phone/verify now expects session_token key instead of session_code.
• Response for /api/phone/verify now sends additional response of Security code is already verified in case VERIFY_SECURITY_CODE_ONLY_ONCE is set to True.
• Rename otp to security_code in code and docs to be more consistent.
• Rename BaseBackend status from VALID, INVALID, EXPIRED to SECURITY_CODE_VALID, SECURITY_CODE_INVALID, and SECURITY_CODE_EXPIRED respectively.
• Rename session_code to session_token to be consistent in code and naming across the app.
• Rename service send_otp_and_generate_session_code to send_security_code_and_generate_session_token.
• Rename method BaseBackend.generate_token to BaseBackend.generate_security_code.
• Rename method create_otp_and_session_token to create_security_code_and_session_token.
• Rename method BaseBackend.validate_token to BaseBackend.validate_security_code with an additional parameter of session_token.

[0.2.0] ^^^^^^^

Added """""

• pre-commit-config to maintain code quality using black and other useful tools.
• Docs for integration and usage in usage.rst_.
• Tox for testing on py{37}-django{20,21,22}.
• Travis CI for testing builds.

Changed """""""

• Convert *.md docs to reST Markup.
• Fix issue with installing required package dependencies via install_requires.

[0.1.1] ^^^^^^^

Added """""

• README and documentation of API endpoints.
• setup.cfg to manage coverage.
• phone_verify app including backends, requirements, tests.
• Intial app setup.