old_contents: from __future__ import absolute_import
  from django.http import HttpRequest, HttpResponse
  from .github_webhook import api_github_webhook
  from .github import api_github_landing
  
  
  def api_github_webhook_dispatch(request):
      # type: (HttpRequest) -> HttpResponse
      if request.META.get('HTTP_X_GITHUB_EVENT'):
          return api_github_webhook(request)
      else:
          return api_github_landing(request)
  
new_contents: from __future__ import absolute_import
  from django.http import HttpRequest, HttpResponse
  from django.views.decorators.csrf import csrf_exempt
  from .github_webhook import api_github_webhook
  from .github import api_github_landing
  
  # Since this dispatcher is an API-style endpoint, it needs to be
  # explicitly marked as CSRF-exempt
  @csrf_exempt
  def api_github_webhook_dispatch(request):
      # type: (HttpRequest) -> HttpResponse
      if request.META.get('HTTP_X_GITHUB_EVENT'):
          return api_github_webhook(request)
      else:
          return api_github_landing(request)
  
subject: Fix GitHub integration CSRF issue.