from django.conf import settings

from django.contrib.auth.decorators import login_required

from django.http import HttpResponse, HttpResponseRedirect

from django.core.exceptions import SuspiciousOperation

from django.shortcuts import render_to_response

from django.utils import simplejson

from django.utils.encoding import smart_str

from django.core.serializers.json import DjangoJSONEncoder

from django.test.client import CONTENT_TYPE_RE

def no_template_view(request):

    "A simple view that expects a GET request, and returns a rendered template"

    return HttpResponse("No template used. Sample content: twice once twice. Content ends.")

def staff_only_view(request):

    "A view that can only be visited by staff. Non staff members get an exception"

    if request.user.is_staff:

        return HttpResponse('')

    else:

        raise SuspiciousOperation()

def get_view(request):

    "A simple login protected view"

    return HttpResponse("Hello world")

get_view = login_required(get_view)

def request_data(request, template='base.html', data='sausage'):

    "A simple view that returns the request data in the context"

    return render_to_response(template, {

        'get-foo':request.GET.get('foo',None),

        'get-bar':request.GET.get('bar',None),

        'post-foo':request.POST.get('foo',None),

        'post-bar':request.POST.get('bar',None),

        'request-foo':request.REQUEST.get('foo',None),

        'request-bar':request.REQUEST.get('bar',None),

        'data': data,

    })

def view_with_argument(request, name):

    """A view that takes a string argument

    The purpose of this view is to check that if a space is provided in

    the argument, the test framework unescapes the %20 before passing

    the value to the view.

    """

    if name == 'Arthur Dent':

        return HttpResponse('Hi, Arthur')

    else:

        return HttpResponse('Howdy, %s' % name)

def login_protected_redirect_view(request):

    "A view that redirects all requests to the GET view"

    return HttpResponseRedirect('/test_client_regress/get_view/')

login_protected_redirect_view = login_required(login_protected_redirect_view)

def set_session_view(request):

    "A view that sets a session variable"

    request.session['session_var'] = 'YES'

    return HttpResponse('set_session')

def check_session_view(request):

    "A view that reads a session variable"

    return HttpResponse(request.session.get('session_var', 'NO'))

def request_methods_view(request):

    "A view that responds with the request method"

    return HttpResponse('request method: %s' % request.method)

def return_unicode(request):

    return render_to_response('unicode.html')

def return_json_file(request):

    "A view that parses and returns a JSON string as a file."

    match = CONTENT_TYPE_RE.match(request.META['CONTENT_TYPE'])

    if match:

        charset = match.group(1)

    else:

        charset = settings.DEFAULT_CHARSET

    # This just checks that the uploaded data is JSON

    obj_dict = simplejson.loads(request.raw_post_data.decode(charset))

    obj_json = simplejson.dumps(obj_dict, encoding=charset,

                                cls=DjangoJSONEncoder,

                                ensure_ascii=False)

    response = HttpResponse(smart_str(obj_json, encoding=charset), status=200,

                            mimetype='application/json; charset=' + charset)

    response['Content-Disposition'] = 'attachment; filename=testfile.json'

    return response

def check_headers(request):

    "A view that responds with value of the X-ARG-CHECK header"

    return HttpResponse('HTTP_X_ARG_CHECK: %s' % request.META.get('HTTP_X_ARG_CHECK', 'Undefined'))