+
−"""
+
−Decorators for views based on HTTP headers.
+
−"""
+
−
+
−try:
+
−    from functools import wraps
+
−except ImportError:
+
−    from django.utils.functional import wraps  # Python 2.3, 2.4 fallback.
+
−
+
−from django.utils.decorators import decorator_from_middleware
+
−from django.middleware.http import ConditionalGetMiddleware
+
−from django.http import HttpResponseNotAllowed
+
−
+
−conditional_page = decorator_from_middleware(ConditionalGetMiddleware)
+
−
+
−def require_http_methods(request_method_list):
+
−    """
+
−    Decorator to make a view only accept particular request methods.  Usage::
+
−
+
−        @require_http_methods(["GET", "POST"])
+
−        def my_view(request):
+
−            # I can assume now that only GET or POST requests make it this far
+
−            # ...
+
−
+
−    Note that request methods should be in uppercase.
+
−    """
+
−    def decorator(func):
+
−        def inner(request, *args, **kwargs):
+
−            if request.method not in request_method_list:
+
−                return HttpResponseNotAllowed(request_method_list)
+
−            return func(request, *args, **kwargs)
+
−        return wraps(func)(inner)
+
−    return decorator
+
−
+
−require_GET = require_http_methods(["GET"])
+
−require_GET.__doc__ = "Decorator to require that a view only accept the GET method."
+
−
+
−require_POST = require_http_methods(["POST"])
+
−require_POST.__doc__ = "Decorator to require that a view only accept the POST method."