91 lines
3.1 KiB
Python
91 lines
3.1 KiB
Python
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"""
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Utility functions for mobile API authentication and validation.
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"""
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import json
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from django.http import JsonResponse
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from rest_framework.authtoken.models import Token
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from accounts.models import User
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def validate_token_and_get_user(request, error_status_code=None):
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"""
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Validates token and username from request body.
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This function handles:
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- JSON parsing from request body
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- Token and username extraction
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- Token validation
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- Username verification against token user
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Args:
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request: Django request object with JSON body containing 'token' and 'username'
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error_status_code: Optional HTTP status code for error responses (default: None)
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Returns:
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tuple: On success, returns (user, token, data, None)
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tuple: On error, returns (None, None, None, JsonResponse)
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Error Responses:
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- Invalid JSON: {"status": "error", "message": "Invalid JSON"} (400 if status_code provided)
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- Missing credentials: {"status": "error", "message": "token and username required"} (400 if status_code provided)
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- Invalid token: {"status": "invalid_token"} (401 if status_code provided)
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- Username mismatch: {"status": "error", "message": "token does not match user"} (401 if status_code provided)
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"""
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try:
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# Parse JSON from request body
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data = json.loads(request.body)
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except json.JSONDecodeError:
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status = 400 if error_status_code else None
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return (None, None, None, JsonResponse(
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{"status": "error", "message": "Invalid JSON"},
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status=status
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))
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# Extract token and username
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token_key = data.get("token")
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username = data.get("username")
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# Validate both are present
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if not token_key or not username:
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status = 400 if error_status_code else None
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return (None, None, None, JsonResponse(
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{"status": "error", "message": "token and username required"},
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status=status
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))
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try:
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# Get token object
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token = Token.objects.get(key=token_key)
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if username:
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if '@' in username:
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user = User.objects.get(email=username)
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else:
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user = User.objects.get(username=username)
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if not user:
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status = 401 if error_status_code else None
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return (None, None, None, JsonResponse(
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{"status": "error", "message": "user not found"},
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status=status
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))
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# Verify username matches token user
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# if user.username != username:
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# status = 401 if error_status_code else None
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# return (None, None, None, JsonResponse(
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# {"status": "error", "message": "token does not match user"},
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# status=status
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# ))
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# Success - return user, token, data, and None for error_response
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return (user, token, data, None)
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except Token.DoesNotExist:
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status = 401 if error_status_code else None
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return (None, None, None, JsonResponse(
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{"status": "invalid_token"},
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status=status
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))
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