django-phone-verify

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

Salient Features

• Let's devs verify phone numbers via SMS.
• Extensibility to provide tokens with varying lengths.
• Comes with Twilio and Nexmo 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 several potential use-cases, and not just auth.
• Provides ready endpoints for sending SMS and verification (See api_endpoints.rst).

Installation

pip install django-phone-verify

Configuration

• Add app to INSTALLED_APPS

# In settings.py:

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

• Add settings for Phone Verify as you desire:

# 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 the existing functionality of Django Phone Verify, have a look at usage.rst

Note: Django Phone Verify 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

• Python 3.6+
• 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

[3.0.0]

Added

• Support for Django 4.x.
• Support for Django 3.2.

Changed

• Method phone_verify.backends.nexmo.NexmoBackend.send_sms changes parameter name from numbers to number to be consistent with rest of the inherited classes.

[2.0.1]

Added

• Support for Python 3.8 & Python 3.9.
• CI tests for Py{36,37,38,39}-Django{20,21,22,30,31}.

Changed

• Fixed issue generate_session_token to handle cases in Py38, Py39 when the session_token is already string instead of bytes.

[2.0.0]

NOTE: The 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 along with Twilio.
• Add docs for writing a 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.
• Initial app setup.