django/views/decorators/clickjacking.py
from functools import wraps
from asgiref.sync import iscoroutinefunction
def xframe_options_deny(view_func):
"""
Modify a view function so its response has the X-Frame-Options HTTP
header set to 'DENY' as long as the response doesn't already have that
header set. Usage:
@xframe_options_deny
def some_view(request):
...
"""
if iscoroutinefunction(view_func):
async def _view_wrapper(*args, **kwargs):
response = await view_func(*args, **kwargs)
if response.get("X-Frame-Options") is None:
response["X-Frame-Options"] = "DENY"
return response
else:
def _view_wrapper(*args, **kwargs):
response = view_func(*args, **kwargs)
if response.get("X-Frame-Options") is None:
response["X-Frame-Options"] = "DENY"
return response
return wraps(view_func)(_view_wrapper)
def xframe_options_sameorigin(view_func):
"""
Modify a view function so its response has the X-Frame-Options HTTP
header set to 'SAMEORIGIN' as long as the response doesn't already have
that header set. Usage:
@xframe_options_sameorigin
def some_view(request):
...
"""
if iscoroutinefunction(view_func):
async def _view_wrapper(*args, **kwargs):
response = await view_func(*args, **kwargs)
if response.get("X-Frame-Options") is None:
response["X-Frame-Options"] = "SAMEORIGIN"
return response
else:
def _view_wrapper(*args, **kwargs):
response = view_func(*args, **kwargs)
if response.get("X-Frame-Options") is None:
response["X-Frame-Options"] = "SAMEORIGIN"
return response
return wraps(view_func)(_view_wrapper)
def xframe_options_exempt(view_func):
"""
Modify a view function by setting a response variable that instructs
XFrameOptionsMiddleware to NOT set the X-Frame-Options HTTP header. Usage:
@xframe_options_exempt
def some_view(request):
...
"""
if iscoroutinefunction(view_func):
async def _view_wrapper(*args, **kwargs):
response = await view_func(*args, **kwargs)
response.xframe_options_exempt = True
return response
else:
def _view_wrapper(*args, **kwargs):
response = view_func(*args, **kwargs)
response.xframe_options_exempt = True
return response
return wraps(view_func)(_view_wrapper)