peeringdb-peeringdb/peeringdb_server/views.py

import os
import json
import datetime
import re
import uuid

from allauth.account.models import EmailAddress
from django.http import (
    JsonResponse,
    HttpResponse,
    HttpResponseRedirect,
    HttpResponseNotFound,
    HttpResponseBadRequest,
    HttpResponseForbidden,
)
from django.conf import settings as dj_settings
from django.shortcuts import render, redirect
from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
from django.contrib.auth import authenticate, logout, login
from django.contrib.auth.decorators import login_required
from django.views.decorators.csrf import csrf_protect, ensure_csrf_cookie
from django.views.decorators.http import require_http_methods
from django.urls import resolve, reverse, Resolver404
from django.template import loader
from django.utils import translation
from django.utils.translation import ugettext_lazy as _
from django.utils.crypto import constant_time_compare
from django_namespace_perms.util import (
    get_perms,
    has_perms,
    load_perms,
)
from django_namespace_perms.constants import (
    PERM_CRUD,
    PERM_CREATE,
    PERM_DELETE,
    PERM_WRITE,
)
import requests

from oauth2_provider.decorators import protected_resource
from oauth2_provider.oauth2_backends import get_oauthlib_core

from django_otp.plugins.otp_email.models import EmailDevice
import two_factor.views

from peeringdb_server import settings
from peeringdb_server.search import search
from peeringdb_server.stats import stats as global_stats
from peeringdb_server.org_admin_views import load_all_user_permissions
from peeringdb_server.data_views import BOOL_CHOICE
from peeringdb_server.models import (
    UserOrgAffiliationRequest,
    User,
    UserPasswordReset,
    Organization,
    Network,
    NetworkFacility,
    NetworkIXLan,
    InternetExchange,
    InternetExchangeFacility,
    IXFMemberData,
    Facility,
    Sponsorship,
    Partnership,
    PARTNERSHIP_LEVELS,
    REFTAG_MAP,
    UTC,
)
from peeringdb_server.forms import (
    UserCreationForm,
    PasswordResetForm,
    PasswordChangeForm,
    AffiliateToOrgForm,
    UsernameRetrieveForm,
    UserLocaleForm,
)
from peeringdb_server.serializers import (
    OrganizationSerializer,
    NetworkSerializer,
    InternetExchangeSerializer,
    FacilitySerializer,
)
from peeringdb_server.inet import RdapLookup, RdapException
from peeringdb_server.mail import mail_username_retrieve
from peeringdb_server.deskpro import ticket_queue_rdap_error

from peeringdb_server import maintenance

from ratelimit.decorators import ratelimit, is_ratelimited

RATELIMITS = dj_settings.RATELIMITS


BASE_ENV = {
    "RECAPTCHA_PUBLIC_KEY": dj_settings.RECAPTCHA_PUBLIC_KEY,
    "OAUTH_ENABLED": dj_settings.OAUTH_ENABLED,
    "PEERINGDB_VERSION": settings.PEERINGDB_VERSION,
    "TUTORIAL_MODE": settings.TUTORIAL_MODE,
    "RELEASE_ENV": settings.RELEASE_ENV,
    "SHOW_AUTO_PROD_SYNC_WARNING": settings.SHOW_AUTO_PROD_SYNC_WARNING,
}


def field_help(model, field):
    """
    helper function return help_text of a model
    field
    """
    return model._meta.get_field(field).help_text


def is_oauth_authorize(url):
    if url.find("/oauth2/authorize/") == 0:
        return True
    return False


def export_permissions(user, entity):
    """
    returns dict of permission bools for the specified user and entity

    to be used in template context
    """

    if entity.status == "deleted":
        return {}

    perms = {
        "can_write": has_perms(user, entity, PERM_WRITE),
        "can_create": has_perms(user, entity, PERM_CREATE),
        "can_delete": has_perms(user, entity, PERM_DELETE),
    }

    if entity.status == "pending":
        perms["can_create"] = False
        perms["can_delete"] = False

    if perms["can_write"] or perms["can_create"] or perms["can_delete"]:
        perms["can_edit"] = True

    if hasattr(entity, "nsp_namespace_manage"):
        perms["can_manage"] = has_perms(user, entity.nsp_namespace_manage, PERM_CRUD)
    else:
        perms["can_manage"] = False

    return perms


class DoNotRender:
    """
    Instance of this class is sent when a component attribute does not exist,
    this can then be type checked in the templates to remove non existant attribute
    rows while still allowing attributes with nonetype values to be rendered
    """

    @classmethod
    def permissioned(cls, value, user, namespace, explicit=False):

        """
        Check if the user has permissions to the supplied namespace
        returns a DoNotRender instance if not, otherwise returns
        the supplied value
        """

        b = has_perms(user, namespace.lower(), 0x01, explicit=explicit)
        print(namespace, b)
        print(user)
        if not b:
            return cls()
        return value

    def all(self):
        return []


def beta_sync_dt():
    """
    Returns the next date for a beta sync

    This is currently hard coded to return 00:00Z for the
    next sunday
    """
    dt = datetime.datetime.now() + datetime.timedelta(1)

    while dt.weekday() != 6:
        dt += datetime.timedelta(1)

    return dt.replace(hour=0, minute=0, second=0)


def update_env_beta_sync_dt(env):
    if settings.RELEASE_ENV == "beta":
        env.update(beta_sync_dt=beta_sync_dt())


def make_env(**data):
    env = {}
    env.update(**BASE_ENV)
    env.update(**{"global_stats": global_stats()})
    env.update(**data)
    update_env_beta_sync_dt(env)

    return env


def view_http_error_404(request):
    template = loader.get_template("site/error_404.html")
    return HttpResponseNotFound(template.render(make_env(), request))


def view_http_error_403(request):
    template = loader.get_template("site/error_403.html")
    return HttpResponseForbidden(template.render(make_env(), request))


def view_http_error_csrf(request, reason):
    return JsonResponse({"non_field_errors": [reason]}, status=403)


def view_http_error_invalid(request, reason):
    return JsonResponse({"non_field_errors": [reason]}, status=400)


def view_maintenance(request):
    template = loader.get_template("site/maintenance.html")
    return HttpResponse(template.render({}, request), status=503)


@login_required
@ratelimit(key="ip", rate=RATELIMITS["view_request_ownership_GET"], method="GET")
@ratelimit(key="ip", rate=RATELIMITS["view_request_ownership_POST"], method="POST")
def view_request_ownership(request):
    """
    Renders the form that allows users to request ownership
    to an unclaimed organization
    """

    was_limited = getattr(request, "limited", False)

    if request.method in ["GET", "HEAD"]:

        # check if reuqest was blocked by rate limiting
        if was_limited:
            return view_index(
                request,
                errors=[_("Please wait a bit before requesting ownership again.")],
            )

        org_id = request.GET.get("id")
        try:
            org = Organization.objects.get(id=org_id)
        except Organization.DoesNotExist:
            return view_index(request, errors=[_("Invalid organization")])

        if org.owned:
            return view_index(
                request,
                errors=[
                    _("Organization '%(org_name)s' is already under ownership")
                    % {"org_name": org.name}
                ],
            )

        template = loader.get_template("site/request-ownership.html")
        return HttpResponse(template.render(make_env(org=org), request))

    elif request.method == "POST":

        org_id = request.POST.get("id")

        # check if reuqest was blocked by rate limiting
        if was_limited:
            return JsonResponse(
                {
                    "non_field_errors": [
                        _("Please wait a bit before requesting ownership again.")
                    ]
                },
                status=400,
            )

        try:
            org = Organization.objects.get(id=org_id)
        except Organization.DoesNotExist:
            return JsonResponse(
                {"non_field_errors": [_("Organization does not exist")]}, status=400
            )

        if org.owned:
            return JsonResponse(
                {
                    "non_field_errors": [
                        _("Organization '%(org_name)s' is already under ownership")
                        % {"org_name": org.name}
                    ]
                },
                status=400,
            )

        if UserOrgAffiliationRequest.objects.filter(
            user=request.user, org=org, status="pending"
        ).exists():
            return JsonResponse(
                {
                    "non_field_errors": [
                        _(
                            "You already have an ownership request pending for this organization"
                        )
                    ]
                },
                status=400,
            )

        if not request.user.affiliation_requests_available:
            return view_http_error_invalid(
                request,
                _(
                    "You have too many affiliation requests pending, "
                    "please wait for them to be resolved before opening more."
                ),
            )

        request.user.flush_affiliation_requests()

        uoar = UserOrgAffiliationRequest.objects.create(
            user=request.user, org=org, status="pending"
        )
        return JsonResponse({"status": "ok", "ownership_status": uoar.status})


@csrf_protect
@require_http_methods(["POST"])
def cancel_affiliation_request(request, uoar_id):
    """
    Cancels a user's affiliation request
    """

    # make sure user org affiliation request specified actually
    # belongs to requesting user

    try:
        affiliation_request = request.user.pending_affiliation_requests.get(id=uoar_id)
    except UserOrgAffiliationRequest.DoesNotExist:
        return view_http_error_404(request)

    affiliation_request.cancel()

    return redirect(reverse("user-profile"))


@csrf_protect
@ensure_csrf_cookie
@login_required
@ratelimit(key="ip", method="POST", rate=RATELIMITS["view_affiliate_to_org_POST"])
def view_affiliate_to_org(request):
    """
    Allows the user to request affiliation with an organization through
    an ASN they provide
    """

    if request.method == "POST":

        # check if request was blocked by rate limiting
        was_limited = getattr(request, "limited", False)
        if was_limited:
            return JsonResponse(
                {
                    "non_field_errors": [
                        _("Please wait a bit before requesting affiliation again.")
                    ]
                },
                status=400,
            )

        if not request.user.affiliation_requests_available:
            return view_http_error_invalid(
                request,
                _(
                    "You have too many affiliation requests pending, "
                    "please wait for them to be resolved before opening more."
                ),
            )

        form = AffiliateToOrgForm(request.POST)
        if not form.is_valid():
            return JsonResponse(form.errors, status=400)

        if (
            not form.cleaned_data.get("org")
            and not form.cleaned_data.get("asn")
            and not form.cleaned_data.get("org_name")
        ):
            return JsonResponse(
                {
                    "asn": _("Either ASN or Organization required"),
                    "org": _("Either ASN or Organization required"),
                },
                status=400,
            )

        asn = form.cleaned_data.get("asn")

        request.user.flush_affiliation_requests()

        try:

            uoar, created = UserOrgAffiliationRequest.objects.get_or_create(
                user=request.user,
                asn=form.cleaned_data.get("asn"),
                org_id=form.cleaned_data.get("org") or None,
                org_name=form.cleaned_data.get("org_name") or None,
                status="pending",
            )

        except RdapException as exc:
            ticket_queue_rdap_error(request.user, asn, exc)
            return JsonResponse(
                {"asn": _("RDAP Lookup Error: {}").format(exc)}, status=400
            )

        except MultipleObjectsReturned:
            pass

        return JsonResponse({"status": "ok"})

    return view_verify(request)


@csrf_protect
@ensure_csrf_cookie
@login_required
@ratelimit(key="ip", rate=RATELIMITS["resend_confirmation_mail"])
def resend_confirmation_mail(request):
    was_limited = getattr(request, "limited", False)
    if was_limited:
        return view_index(
            request,
            errors=[
                _(
                    "Please wait a bit before trying to resend the confirmation email again"
                )
            ],
        )

    request.user.send_email_confirmation(request=request)
    return view_index(request, errors=[_("We have resent your confirmation email")])


@csrf_protect
@ensure_csrf_cookie
def view_profile(request):
    return view_verify(request)


@csrf_protect
@ensure_csrf_cookie
@login_required
def view_set_user_locale(request):

    if request.method in ["GET", "HEAD"]:
        return view_verify(request)
    elif request.method == "POST":

        form = UserLocaleForm(request.POST)
        if not form.is_valid():
            return JsonResponse(form.errors, status=400)

        loc = form.cleaned_data.get("locale")
        request.user.set_locale(loc)

        translation.activate(loc)
        request.session[translation.LANGUAGE_SESSION_KEY] = loc

        return JsonResponse({"status": "ok"})


@protected_resource(scopes=["profile"])
def view_profile_v1(request):
    oauth = get_oauthlib_core()
    scope_email, _request = oauth.verify_request(request, scopes=["email"])
    scope_networks, _request = oauth.verify_request(request, scopes=["networks"])

    json_params = {}
    if "pretty" in request.GET:
        json_params["indent"] = 2

    user = request.user
    data = dict(
        id=request.user.id,
        given_name=request.user.first_name,
        family_name=request.user.last_name,
        name=request.user.full_name,
        verified_user=user.is_verified_user,
    )

    # only add email fields if email scope is present
    if scope_email:
        data.update(
            dict(email=request.user.email, verified_email=user.email_confirmed,)
        )

    # only add ddnetworks if networks scope is present
    if scope_networks:
        networks = []
        load_perms(user)
        for net in user.networks:
            crud = get_perms(user._nsp_perms_struct, net.nsp_namespace.split(".")).value
            networks.append(dict(id=net.id, name=net.name, asn=net.asn, perms=crud,))

        data["networks"] = networks

    return JsonResponse(data, json_dumps_params=json_params)


@csrf_protect
@ensure_csrf_cookie
@login_required
@ratelimit(key="ip", rate=RATELIMITS["view_verify_POST"], method="POST")
def view_verify(request):

    if request.method in ["GET", "HEAD"]:
        template = loader.get_template("site/verify.html")
        env = BASE_ENV.copy()
        env.update(
            {
                "affiliations": request.user.organizations,
                "global_stats": global_stats(),
            }
        )
        return HttpResponse(template.render(env, request))
    elif request.method == "POST":

        # change email address

        password = request.POST.get("password")

        was_limited = getattr(request, "limited", False)

        if was_limited:
            return JsonResponse(
                {
                    "non_field_errors": [
                        _("Please wait a bit before requesting another email change")
                    ]
                },
                status=400,
            )

        if not request.user.has_oauth:
            if not authenticate(username=request.user.username, password=password):
                return JsonResponse({"status": "auth"}, status=401)

        if EmailAddress.objects.filter(user=request.user).exists():
            EmailAddress.objects.filter(user=request.user).delete()

        request.user.email = request.POST.get("email")

        if (
            User.objects.filter(email=request.user.email)
            .exclude(id=request.user.id)
            .exists()
        ):
            return JsonResponse(
                {"email": _("E-mail already exists in our system")}, status=400
            )
        request.user.clean()
        request.user.save()

        request.user.send_email_confirmation(request=request)

        return JsonResponse({"status": "ok"})


@csrf_protect
@ensure_csrf_cookie
@login_required
def view_password_change(request):

    if request.method in ["GET", "HEAD"]:
        return view_verify(request)
    elif request.method == "POST":

        password_c = request.POST.get("password_c")

        if not request.user.has_oauth:
            if not authenticate(username=request.user.username, password=password_c):
                return JsonResponse(
                    {"status": "auth", "password_c": _("Wrong password")}, status=400
                )
        else:
            return JsonResponse({"status": "auth"}, status=401)

        form = PasswordChangeForm(request.POST)
        if not form.is_valid():
            return JsonResponse(form.errors, status=400)

        request.user.set_password(form.cleaned_data.get("password"))
        request.user.save()

        return JsonResponse({"status": "ok"})


@ensure_csrf_cookie
@require_http_methods(["GET"])
def view_username_retrieve(request):
    """
    username retrieval view
    """
    env = BASE_ENV.copy()
    env.update(
        {"global_stats": global_stats(),}
    )
    return render(request, "site/username-retrieve.html", env)


@csrf_protect
@ensure_csrf_cookie
@require_http_methods(["POST"])
@ratelimit(key="ip", rate=RATELIMITS["view_username_retrieve_initiate"])
def view_username_retrieve_initiate(request):
    """
    username retrieval initiate view
    """

    was_limited = getattr(request, "limited", False)
    if was_limited:
        return JsonResponse(
            {
                "non_field_errors": [
                    _("Please wait a bit before requesting your usernames again.")
                ]
            },
            status=400,
        )

    # clean form and get email address
    form = UsernameRetrieveForm(request.POST)
    if not form.is_valid():
        return JsonResponse(form.errors, status=400)

    email = form.cleaned_data.get("email")

    # generate secret and store in user's django sessions
    secret = str(uuid.uuid4())
    request.session["username_retrieve_secret"] = secret
    request.session["username_retrieve_email"] = email

    # send email
    if User.objects.filter(email=email).exists():
        mail_username_retrieve(email, secret)

    return JsonResponse({"status": "ok"})


@ensure_csrf_cookie
@require_http_methods(["GET"])
def view_username_retrieve_complete(request):
    """
    username retrieval completion view

    show the list of usernames associated to an email if
    the correct secret is provided
    """

    secret = request.GET.get("secret")
    secret_expected = request.session.get("username_retrieve_secret")
    email = request.session.get("username_retrieve_email")
    env = BASE_ENV.copy()
    env.update(
        {
            "secret": secret,
            "secret_expected": secret_expected,
            "users": User.objects.filter(email=email),
            "email": email,
        }
    )

    if secret_expected and constant_time_compare(secret, secret_expected):
        # invalidate the username retrieve session
        del request.session["username_retrieve_email"]
        del request.session["username_retrieve_secret"]
        request.session.modified = True

    return render(request, "site/username-retrieve-complete.html", env)


@csrf_protect
@ensure_csrf_cookie
def view_password_reset(request):
    """
    password reset initiation view
    """

    if request.method in ["GET", "HEAD"]:
        env = BASE_ENV.copy()
        env.update(
            {"global_stats": global_stats(),}
        )

        env["token"] = token = request.GET.get("token")
        env["target"] = target = request.GET.get("target")

        if token and target:
            pr = UserPasswordReset.objects.filter(user_id=target).first()
            env["pr"] = pr

            if pr and pr.match(token) and pr.is_valid():
                env["username"] = pr.user.username
                env["token_valid"] = True

        template = loader.get_template("site/password-reset.html")

        return HttpResponse(template.render(env, request))

    elif request.method == "POST":

        token = request.POST.get("token")
        target = request.POST.get("target")
        if token and target:
            form = PasswordChangeForm(request.POST)
            if not form.is_valid():
                return JsonResponse(form.errors, status=400)

            user = User.objects.filter(id=target).first()

            err_invalid_token_msg = _("Invalid Security Token")
            err_expired_msg = ('{} <a href="/reset-password">{}</a>').format(
                _("Password Reset Process has expired, please"), _("initiate again")
            )

            if user:
                try:
                    if not user.password_reset.match(token):
                        return JsonResponse(
                            {"non_field_errors": [err_invalid_token_msg]}, status=400
                        )

                    if not user.password_reset.is_valid():
                        return JsonResponse(
                            {"non_field_errors": [err_expired_msg]}, status=400
                        )

                except UserPasswordReset.DoesNotExist:
                    return JsonResponse(
                        {"non_field_errors": [err_expired_msg]}, status=400
                    )

                user.password_reset_complete(token, form.cleaned_data.get("password"))

            else:
                return JsonResponse({"non_field_errors": [err_expired_msg]}, status=400)

        else:
            form = PasswordResetForm(request.POST)

            if not form.is_valid():
                return JsonResponse(form.errors, status=400)

            user = User.objects.filter(email=form.cleaned_data["email"]).first()
            if user:
                user.password_reset_initiate()
        return JsonResponse({"status": "ok"})


@csrf_protect
@ensure_csrf_cookie
def view_registration(request):
    """
    user registration page view
    """
    if request.user.is_authenticated:
        return view_index(
            request,
            errors=[
                _(
                    "Please log out of your current session before trying to register. Notice, multiple accounts are no longer needed."
                )
            ],
        )

    if request.method in ["GET", "HEAD"]:
        template = loader.get_template("site/register.html")
        env = BASE_ENV.copy()
        env.update(
            {"global_stats": global_stats(), "register_form": UserCreationForm(),}
        )
        update_env_beta_sync_dt(env)
        return HttpResponse(template.render(env, request))

    elif request.method == "POST":
        form = UserCreationForm(request.POST)
        form.request = request

        if not form.is_valid():
            errors = form.errors
            errors["non_field_errors"] = errors.get("__all__", [])
            return JsonResponse(errors, status=400)

        email = form.cleaned_data["email"]
        if EmailAddress.objects.filter(email=email).count() > 0:
            return JsonResponse(
                {"email": _("This email address has already been used")}, status=400
            )

        # require min password length
        # FIXME: impl password strength validation
        if len(form.cleaned_data["password1"]) < 10:
            return JsonResponse(
                {"password1": _("Needs to be at least 10 characters long")}, status=400
            )

        # create the user
        user = form.save()

        user.set_unverified()

        # log the user in
        login(
            request,
            authenticate(
                username=request.POST["username"], password=request.POST["password1"]
            ),
        )

        user.send_email_confirmation(signup=True, request=request)

        form.delete_captcha()

        return JsonResponse({"status": "ok"})


@ensure_csrf_cookie
def view_index(request, errors=None):
    """
    landing page view
    """
    if not errors:
        errors = []

    template = loader.get_template("site/index.html")

    recent = {
        "net": Network.handleref.filter(status="ok").order_by("-updated")[:5],
        "fac": Facility.handleref.filter(status="ok").order_by("-updated")[:5],
        "ix": InternetExchange.handleref.filter(status="ok").order_by("-updated")[:5],
    }

    env = BASE_ENV.copy()
    env.update({"errors": errors, "global_stats": global_stats(), "recent": recent})

    update_env_beta_sync_dt(env)

    return HttpResponse(template.render(env, request))


def view_component(
    request, component, data, title, perms=None, instance=None, **kwargs
):
    """
    Generic component view
    """
    if not perms:
        perms = {}

    template = loader.get_template("site/view.html")

    env = BASE_ENV.copy()
    env.update(
        {
            "data": data,
            "permissions": perms,
            "title": title,
            "component": component,
            "instance": instance,
            "ref_tag": instance._handleref.tag,
            "global_stats": global_stats(),
            "asset_template_name": "site/view_%s_assets.html" % component,
            "tools_template_name": "site/view_%s_tools.html" % component,
            "side_template_name": "site/view_%s_side.html" % component,
            "bottom_template_name": "site/view_%s_bottom.html" % component,
        }
    )

    update_env_beta_sync_dt(env)

    env.update(**kwargs)
    return HttpResponse(template.render(env, request))


@ensure_csrf_cookie
def view_organization(request, id):
    """
    View organization data for org specified by id
    """

    try:
        org = OrganizationSerializer.prefetch_related(
            Organization.objects, request, depth=2
        ).get(id=id, status__in=["ok", "pending"])
    except ObjectDoesNotExist:
        return view_http_error_404(request)

    data = OrganizationSerializer(org, context={"user": request.user}).data

    if not data:
        return view_http_error_403(request)

    perms = export_permissions(request.user, org)

    tags = ["fac", "net", "ix"]
    for tag in tags:
        model = REFTAG_MAP.get(tag)
        perms["can_create_%s" % tag] = has_perms(
            request.user, model.nsp_namespace_from_id(org.id, "create"), PERM_CREATE
        )
        perms["can_delete_%s" % tag] = has_perms(
            request.user,
            model.nsp_namespace_from_id(org.id, "_").strip("_"),
            PERM_DELETE,
        )

    # if the organization being viewed is the one used
    # to store suggested entities, we dont want to show the editorial
    # tools
    if org.id == dj_settings.SUGGEST_ENTITY_ORG:
        perms["can_create"] = False
        perms["can_manage"] = False
        for tag in tags:
            perms["can_create_%s" % tag] = False
            perms["can_delete_%s" % tag] = False

    # if user has writing perms to entity, we want to load sub entities
    # that have status pending so we dont use the ones kicked back
    # by the serializer
    if perms.get("can_delete_ix") or perms.get("can_create_ix"):
        exchanges = org.ix_set.filter(status__in=["ok", "pending"])
    else:
        exchanges = data["ix_set"]

    if perms.get("can_delete_fac") or perms.get("can_create_fac"):
        facilities = org.fac_set.filter(status__in=["ok", "pending"])
    else:
        facilities = data["fac_set"]

    if perms.get("can_delete_net") or perms.get("can_create_net"):
        networks = org.net_set.filter(status__in=["ok", "pending"])
    else:
        networks = data["net_set"]

    dismiss = DoNotRender()

    data = {
        "title": data.get("name", dismiss),
        "exchanges": exchanges,
        "networks": networks,
        "facilities": facilities,
        "fields": [
            {
                "name": "website",
                "type": "url",
                "notify_incomplete": True,
                "value": data.get("website", dismiss),
                "label": _("Website"),
            },
            {
                "name": "address1",
                "label": _("Address 1"),
                "notify_incomplete": True,
                "value": data.get("address1", dismiss),
            },
            {
                "name": "address2",
                "label": _("Address 2"),
                "value": data.get("address2", dismiss),
            },
            {
                "name": "location",
                "label": _("Location"),
                "type": "location",
                "notify_incomplete": True,
                "value": data,
            },
            {
                "name": "country",
                "type": "list",
                "data": "countries_b",
                "label": _("Country Code"),
                "notify_incomplete": True,
                "value": data.get("country", dismiss),
            },
            {
                "readonly": True,
                "name": "updated",
                "label": _("Last Updated"),
                "value": data.get("updated", dismiss),
            },
            {
                "name": "notes",
                "label": _("Notes"),
                "help_text": _("Markdown enabled"),
                "type": "fmt-text",
                "value": data.get("notes", dismiss),
            },
        ],
    }

    users = {}
    if perms.get("can_manage"):
        users.update({user.id: user for user in org.admin_usergroup.user_set.all()})
        users.update({user.id: user for user in org.usergroup.user_set.all()})
        users = sorted(list(users.values()), key=lambda x: x.full_name)

    # if user has rights to create sub entties or manage users, allow them
    # to view the tools
    if perms.get("can_manage") or perms.get("can_create"):
        perms["can_use_tools"] = True

    active_tab = None
    tab_init = {}
    for tag in tags:
        tab_init[tag] = "inactive"
        if perms.get("can_create_%s" % tag):
            perms["can_use_tools"] = True
            if not active_tab:
                tab_init[tag] = "active"
                active_tab = tag
        if perms.get("can_delete_%s" % tag):
            perms["can_edit"] = True

    if perms.get("can_manage") and org.pending_affiliations.count() > 0:
        tab_init = {"users": "active"}

    return view_component(
        request,
        "organization",
        data,
        "Organization",
        tab_init=tab_init,
        users=users,
        user_perms=load_all_user_permissions(org),
        instance=org,
        perms=perms,
    )


@ensure_csrf_cookie
def view_facility(request, id):
    """
    View facility data for facility specified by id
    """

    try:
        facility = Facility.objects.get(id=id, status__in=["ok", "pending"])
    except ObjectDoesNotExist:
        return view_http_error_404(request)

    data = FacilitySerializer(facility, context={"user": request.user}).data

    if not data:
        return view_http_error_403(request)

    perms = export_permissions(request.user, facility)

    org = OrganizationSerializer(facility.org, context={"user": request.user}).data

    exchanges = (
        InternetExchangeFacility.handleref.undeleted()
        .filter(facility=facility)
        .select_related("ix")
        .order_by("ix__name")
        .all()
    )
    peers = (
        NetworkFacility.handleref.undeleted()
        .filter(facility=facility)
        .select_related("network")
        .order_by("network__name")
    )

    dismiss = DoNotRender()

    data = {
        "title": data.get("name", dismiss),
        "exchanges": exchanges,
        "peers": peers,
        "fields": [
            {
                "name": "org",
                "label": _("Organization"),
                "value": org.get("name", dismiss),
                "type": "entity_link",
                "link": "/%s/%d" % (Organization._handleref.tag, org.get("id")),
            },
            {
                "name": "website",
                "type": "url",
                "value": data.get("website", dismiss),
                "label": _("Website"),
            },
            {
                "name": "address1",
                "label": _("Address 1"),
                "value": data.get("address1", dismiss),
            },
            {
                "name": "address2",
                "label": _("Address 2"),
                "value": data.get("address2", dismiss),
            },
            {
                "name": "location",
                "label": _("Location"),
                "type": "location",
                "value": data,
            },
            {
                "name": "country",
                "type": "list",
                "data": "countries_b",
                "label": _("Country Code"),
                "value": data.get("country", dismiss),
            },
            {
                "name": "geocode",
                "label": _("Geocode"),
                "type": "geocode",
                "value": data,
            },
            {
                "name": "clli",
                "label": _("CLLI Code"),
                "value": data.get("clli", dismiss),
            },
            {
                "name": "npanxx",
                "label": _("NPA-NXX"),
                "value": data.get("npanxx", dismiss),
            },
            {
                "readonly": True,
                "name": "updated",
                "label": _("Last Updated"),
                "value": data.get("updated", dismiss),
            },
            {
                "name": "notes",
                "label": _("Notes"),
                "help_text": _("Markdown enabled"),
                "type": "fmt-text",
                "value": data.get("notes", dismiss),
            },
            {
                "type": "email",
                "name": "tech_email",
                "label": _("Technical Email"),
                "value": data.get("tech_email", dismiss),
            },
            {
                "type": "string",
                "name": "tech_phone",
                "label": _("Technical Phone"),
                "value": data.get("tech_phone", dismiss),
            },
            {
                "type": "email",
                "name": "sales_email",
                "label": _("Sales Email"),
                "value": data.get("sales_email", dismiss),
            },
            {
                "type": "string",
                "name": "sales_phone",
                "label": _("Sales Phone"),
                "value": data.get("sales_phone", dismiss),
            },
        ],
    }

    return view_component(
        request, "facility", data, "Facility", perms=perms, instance=facility
    )


@ensure_csrf_cookie
def view_exchange(request, id):
    """
    View exchange data for exchange specified by id
    """

    try:
        exchange = InternetExchange.objects.get(id=id, status__in=["ok", "pending"])
    except ObjectDoesNotExist:
        return view_http_error_404(request)

    data = InternetExchangeSerializer(exchange, context={"user": request.user}).data

    # find out if user can write to object
    perms = export_permissions(request.user, exchange)

    if not data:
        return view_http_error_403(request)
    networks = (
        NetworkIXLan.handleref.undeleted()
        .select_related("network", "ixlan")
        .order_by("network__name")
        .filter(ixlan__ix=exchange)
    )
    dismiss = DoNotRender()

    facilities = (
        InternetExchangeFacility.handleref.undeleted()
        .select_related("ix", "facility")
        .filter(ix=exchange)
        .order_by("facility__name")
    )

    org = data.get("org")

    data = {
        "id": exchange.id,
        "title": data.get("name", dismiss),
        "facilities": facilities,
        "networks": networks,
        "ixlans": exchange.ixlan_set_active_or_pending,
        "fields": [
            {
                "name": "org",
                "label": _("Organization"),
                "value": org.get("name", dismiss),
                "type": "entity_link",
                "link": "/%s/%d" % (Organization._handleref.tag, org.get("id")),
            },
            {
                "name": "name_long",
                "label": _("Long Name"),
                "value": data.get("name_long", dismiss),
            },
            {"name": "city", "label": _("City"), "value": data.get("city", dismiss)},
            {
                "name": "country",
                "type": "list",
                "data": "countries_b",
                "label": _("Country"),
                "value": data.get("country", dismiss),
            },
            {
                "name": "region_continent",
                "type": "list",
                "data": "enum/regions",
                "label": _("Continental Region"),
                "value": data.get("region_continent", dismiss),
            },
            {
                "name": "media",
                "type": "list",
                "data": "enum/media",
                "label": _("Media Type"),
                "value": data.get("media", dismiss),
            },
            {
                "type": "flags",
                "label": _("Protocols Supported"),
                "value": [
                    {
                        "name": "proto_unicast",
                        "label": _("Unicast IPv4"),
                        "value": int(data.get("proto_unicast", False)),
                    },
                    {
                        "name": "proto_multicast",
                        "label": _("Multicast"),
                        "value": int(data.get("proto_multicast", False)),
                    },
                    {
                        "name": "proto_ipv6",
                        "label": _("IPv6"),
                        "value": int(data.get("proto_ipv6", False)),
                    },
                ],
            },
            {
                "readonly": True,
                "name": "updated",
                "label": _("Last Updated"),
                "value": data.get("updated", dismiss),
            },
            {
                "name": "notes",
                "label": _("Notes"),
                "help_text": _("Markdown enabled"),
                "type": "fmt-text",
                "value": data.get("notes", dismiss),
            },
            {"type": "sub", "label": _("Contact Information")},
            {
                "type": "url",
                "name": "website",
                "label": _("Company Website"),
                "value": data.get("website", dismiss),
            },
            {
                "type": "url",
                "name": "url_stats",
                "label": _("Traffic Stats Website"),
                "value": data.get("url_stats", dismiss),
            },
            {
                "type": "email",
                "name": "tech_email",
                "label": _("Technical Email"),
                "value": data.get("tech_email", dismiss),
            },
            {
                "type": "string",
                "name": "tech_phone",
                "label": _("Technical Phone"),
                "value": data.get("tech_phone", dismiss),
            },
            {
                "type": "email",
                "name": "policy_email",
                "label": _("Policy Email"),
                "value": data.get("policy_email", dismiss),
            },
            {
                "type": "string",
                "name": "policy_phone",
                "label": _("Policy Phone"),
                "value": data.get("policy_phone", dismiss),
            },
        ],
    }

    # IXLAN field group (form)

    ixlan = exchange.ixlan

    data["fields"].extend(
        [
            {
                "type": "group",
                "target": "api:ixlan:update",
                "id": ixlan.id,
                "label": _("LAN"),
                "payload": [{"name": "ix_id", "value": exchange.id},],
            },
            {
                "type": "flags",
                "label": _("DOT1Q"),
                "value": [{"name": "dot1q_support", "value": ixlan.dot1q_support}],
            },
            {
                "type": "number",
                "name": "mtu",
                "label": _("MTU"),
                "value": (ixlan.mtu or 0),
            },
            {
                "type": "flags",
                "label": _("Enable IX-F Import"),
                "value": [
                    {
                        "name": "ixf_ixp_import_enabled",
                        "value": ixlan.ixf_ixp_import_enabled,
                    }
                ],
                "admin": True,
            },
            {
                "type": "url",
                "label": _("IX-F Member Export URL"),
                "name": "ixf_ixp_member_list_url",
                "value": DoNotRender.permissioned(
                    ixlan.ixf_ixp_member_list_url,
                    request.user,
                    f"{ixlan.nsp_namespace}.ixf_ixp_member_list_url"
                    f".{ixlan.ixf_ixp_member_list_url_visible}",
                    explicit=True,
                ),
            },
            {
                "type": "list",
                "name": "ixf_ixp_member_list_url_visible",
                "data": "enum/visibility",
                "label": _("IX-F Member Export URL Visibility"),
                "value": ixlan.ixf_ixp_member_list_url_visible,
            },
            {
                "type": "action",
                "label": _("IX-F Import Preview"),
                "actions": [{"label": _("Preview"), "action": "ixf_preview",},],
                "admin": True,
            },
            {"type": "group_end"},
        ]
    )

    return view_component(
        request, "exchange", data, "Exchange", perms=perms, instance=exchange
    )


@ensure_csrf_cookie
def view_network_by_query(request):
    if "asn" in request.GET:
        try:
            return view_network_by_asn(request, request.GET.get("asn"))
        except ValueError:
            return view_http_error_404(request)
    else:
        return view_http_error_404(request)


@ensure_csrf_cookie
def view_network_by_asn(request, asn):
    try:
        network = Network.objects.get(asn=int(asn))
        # FIXME: should be able to just pass existing network object here to avoid
        # having to query again
        return view_network(request, network.id)
    except ObjectDoesNotExist:
        return view_http_error_404(request)


@ensure_csrf_cookie
def view_network(request, id):
    """
    View network data for network specified by id
    """

    try:
        network = NetworkSerializer.prefetch_related(
            Network.objects, request, depth=2
        ).get(id=id, status__in=["ok", "pending"])
    except ObjectDoesNotExist:
        return view_http_error_404(request)

    network_d = NetworkSerializer(network, context={"user": request.user}).data

    if not network_d:
        return view_http_error_403(request)

    perms = export_permissions(request.user, network)

    facilities = (
        NetworkFacility.handleref.undeleted()
        .select_related("facility")
        .filter(network=network)
        .order_by("facility__name")
    )

    exchanges = (
        NetworkIXLan.handleref.undeleted()
        .select_related("ixlan", "ixlan__ix", "network")
        .filter(network=network)
        .order_by("ixlan__ix__name")
    )

    # This will be passed as default value for keys that dont exist - causing
    # them not to be rendered in the template - also it is fairly
    # safe to assume that no existing keys have been dropped because permission
    # requirements to view them were not met.
    dismiss = DoNotRender()

    org = network_d.get("org")

    ixf_proposals = IXFMemberData.proposals_for_network(network)
    ixf_proposals_dismissed = IXFMemberData.dismissed_for_network(network)

    data = {
        "title": network_d.get("name", dismiss),
        "facilities": facilities,
        "exchanges": exchanges,
        "ixf": ixf_proposals,
        "ixf_dismissed": ixf_proposals_dismissed,
        "fields": [
            {
                "name": "org",
                "label": _("Organization"),
                "value": org.get("name", dismiss),
                "type": "entity_link",
                "link": "/%s/%d" % (Organization._handleref.tag, org.get("id")),
            },
            {
                "name": "aka",
                "label": _("Also Known As"),
                "notify_incomplete": False,
                "value": network_d.get("aka", dismiss),
            },
            {
                "name": "website",
                "label": _("Company Website"),
                "type": "url",
                "notify_incomplete": True,
                "value": network_d.get("website", dismiss),
            },
            {
                "name": "asn",
                "label": _("ASN"),
                "notify_incomplete": True,
                "value": network_d.get("asn", dismiss),
                "readonly": True,
            },
            {
                "name": "irr_as_set",
                "label": _("IRR as-set/route-set"),
                "help_text": field_help(Network, "irr_as_set"),
                "notify_incomplete": True,
                "value": network_d.get("irr_as_set", dismiss),
            },
            {
                "name": "route_server",
                "type": "url",
                "label": _("Route Server URL"),
                "notify_incomplete": False,
                "value": network_d.get("route_server", dismiss),
            },
            {
                "name": "looking_glass",
                "type": "url",
                "label": _("Looking Glass URL"),
                "notify_incomplete": False,
                "value": network_d.get("looking_glass", dismiss),
            },
            {
                "name": "info_type",
                "type": "list",
                "data": "enum/net_types",
                "blank": _("Not Disclosed"),
                "label": _("Network Type"),
                "notify_incomplete": True,
                "value": network_d.get("info_type", dismiss),
            },
            {
                "name": "info_prefixes4",
                "label": _("IPv4 Prefixes"),
                "type": "number",
                "help_text": field_help(Network, "info_prefixes4"),
                "notify_incomplete": True,
                "notify_incomplete_group": "prefixes",
                "value": int(network_d.get("info_prefixes4") or 0),
            },
            {
                "name": "info_prefixes6",
                "label": _("IPv6 Prefixes"),
                "type": "number",
                "help_text": field_help(Network, "info_prefixes6"),
                "notify_incomplete": True,
                "notify_incomplete_group": "prefixes",
                "value": int(network_d.get("info_prefixes6") or 0),
            },
            {
                "name": "info_traffic",
                "type": "list",
                "data": "enum/traffic",
                "blank": _("Not Disclosed"),
                "label": _("Traffic Levels"),
                "value": network_d.get("info_traffic", dismiss),
            },
            {
                "name": "info_ratio",
                "type": "list",
                "data": "enum/ratios",
                "label": _("Traffic Ratios"),
                "blank": _("Not Disclosed"),
                "value": network_d.get("info_ratio", dismiss),
            },
            {
                "name": "info_scope",
                "type": "list",
                "data": "enum/scopes",
                "blank": _("Not Disclosed"),
                "label": _("Geographic Scope"),
                "value": network_d.get("info_scope", dismiss),
            },
            {
                "type": "flags",
                "label": _("Protocols Supported"),
                "value": [
                    {
                        "name": "info_unicast",
                        "label": _("Unicast IPv4"),
                        "value": network_d.get("info_unicast", False),
                    },
                    {
                        "name": "info_multicast",
                        "label": _("Multicast"),
                        "value": network_d.get("info_multicast", False),
                    },
                    {
                        "name": "info_ipv6",
                        "label": _("IPv6"),
                        "value": network_d.get("info_ipv6", False),
                    },
                    {
                        "name": "info_never_via_route_servers",
                        "label": _("Never via route servers"),
                        # FIXME: change to `field_help` after merging with #228
                        "help_text": Network._meta.get_field(
                            "info_never_via_route_servers"
                        ).help_text,
                        "value": network_d.get("info_never_via_route_servers", False),
                    },
                ],
            },
            {
                "readonly": True,
                "name": "updated",
                "label": _("Last Updated"),
                "value": network_d.get("updated", dismiss),
            },
            {
                "name": "notes",
                "label": _("Notes"),
                "help_text": _("Markdown enabled"),
                "type": "fmt-text",
                "value": network_d.get("notes", dismiss),
            },
            {"type": "sub", "admin": True, "label": _("PeeringDB Configuration")},
            {
                "type": "flags",
                "admin": True,
                "label": _("Allow IXP Update"),
                "help_text": _(
                    "If enabled, an IXP may manage this network's entry in their peering list"
                ),
                "value": [
                    {
                        "name": "allow_ixp_update",
                        "label": "",
                        "value": network.allow_ixp_update,
                    }
                ],
            },
            {
                "type": "action",
                "admin": True,
                "label": _("IXP Update Tools"),
                "actions": [
                    {"label": _("Preview"), "action": "ixf_preview",},
                    {"label": _("Postmortem"), "action": "ixf_postmortem"},
                ],
            },
            {"type": "sub", "label": _("Peering Policy Information")},
            {
                "name": "policy_url",
                "label": _("Peering Policy"),
                "value": network_d.get("policy_url", dismiss),
                "notify_incomplete": True,
                "type": "url",
            },
            {
                "name": "policy_general",
                "type": "list",
                "data": "enum/policy_general",
                "label": _("General Policy"),
                "value": network_d.get("policy_general", dismiss),
            },
            {
                "name": "policy_locations",
                "type": "list",
                "data": "enum/policy_locations",
                "label": _("Multiple Locations"),
                "value": network_d.get("policy_locations", dismiss),
            },
            {
                "name": "policy_ratio",
                "type": "list",
                "data": "enum/bool_choice_str",
                "label": _("Ratio Requirement"),
                "value": network_d.get("policy_ratio", dismiss),
                "value_label": dict(BOOL_CHOICE).get(network_d.get("policy_ratio")),
            },
            {
                "name": "policy_contracts",
                "type": "list",
                "data": "enum/policy_contracts",
                "label": _("Contract Requirement"),
                "value": network_d.get("policy_contracts", dismiss),
            },
        ],
    }

    # Add POC data to dataset
    data["poc_set"] = network_d.get("poc_set")

    if not request.user.is_authenticated or not request.user.is_verified_user:
        cnt = network.poc_set.filter(status="ok", visible="Users").count()
        data["poc_hidden"] = cnt > 0
    else:
        data["poc_hidden"] = False

    return view_component(
        request, "network", data, "Network", perms=perms, instance=network
    )


def view_suggest(request, reftag):
    if reftag not in ["net", "ix", "fac"]:
        return HttpResponseRedirect("/")

    template = loader.get_template(f"site/view_suggest_{reftag}.html")
    env = make_env()
    return HttpResponse(template.render(env, request))


def view_simple_content(request, content_name):
    """
    Renders the content in templates/{{ content_name }} inside
    the peeringdb layout
    """

    template = loader.get_template("site/simple_content.html")

    env = make_env(content_name=content_name)

    return HttpResponse(template.render(env, request))


def view_aup(request):
    """
    Render page containing acceptable use policy
    """

    return view_simple_content(request, "site/aup.html")


def view_about(request):
    """
    Render page containing about
    """

    return view_simple_content(request, "site/about.html")


def view_sponsorships(request):
    """
    View current sponsorships
    """

    template = loader.get_template("site/sponsorships.html")
    now = datetime.datetime.now().replace(tzinfo=UTC())

    qset = Sponsorship.objects.filter(start_date__lte=now, end_date__gte=now)

    sponsorships = {
        "diamond": qset.filter(level=4),
        "platinum": qset.filter(level=3),
        "gold": qset.filter(level=2),
        "silver": qset.filter(level=1),
    }

    env = make_env(sponsorships=sponsorships)
    return HttpResponse(template.render(env, request))


def view_partnerships(request):
    """
    View current partners
    """

    template = loader.get_template("site/partnerships.html")
    qset = Partnership.objects.filter(logo__isnull=False)

    partnerships = {}
    for row in qset:
        if row.level not in partnerships:
            partnerships[row.level] = []
        partnerships[row.level].append(row)

    env = make_env(
        partnership_levels=dict(PARTNERSHIP_LEVELS), partnerships=partnerships
    )
    return HttpResponse(template.render(env, request))


def view_advanced_search(request):
    """
    View for advanced search
    """

    template = loader.get_template("site/advanced-search.html")
    env = make_env(row_limit=getattr(dj_settings, "API_DEPTH_ROW_LIMIT", 250))

    reftag = request.GET.get("reftag")

    if reftag == "net":
        try:
            env["ix_name"] = InternetExchange.objects.get(id=request.GET.get("ix")).name
        except (ObjectDoesNotExist, ValueError):
            env["ix_name"] = ""

        try:
            env["not_ix_name"] = InternetExchange.objects.get(
                id=request.GET.get("not_ix")
            ).name
        except (ObjectDoesNotExist, ValueError):
            env["not_ix_name"] = ""

        try:
            env["fac_name"] = Facility.objects.get(id=request.GET.get("fac")).name
        except (ObjectDoesNotExist, ValueError):
            env["fac_name"] = ""

        try:
            env["not_fac_name"] = Facility.objects.get(
                id=request.GET.get("not_fac")
            ).name
        except (ObjectDoesNotExist, ValueError):
            env["not_fac_name"] = ""

    return HttpResponse(template.render(env, request))


def request_api_search(request):
    q = request.GET.get("q")

    if not q:
        return HttpResponseBadRequest()

    result = search(q)

    return HttpResponse(json.dumps(result), content_type="application/json")


def request_search(request):
    """
    XHR search request goes here
    """
    q = request.GET.get("q")

    if not q:
        return HttpResponseRedirect("/")

    # if the user queried for an asn directly via AS*** or ASN***
    # redirect to the result
    m = re.match(r"(asn|as)(\d+)", q.lower())
    if m:
        net = Network.objects.filter(asn=m.group(2), status="ok")
        if net.exists() and net.count() == 1:
            return HttpResponseRedirect(f"/net/{net.first().id}")

    result = search(q)

    sponsors = {
        org.id: sponsorship.label.lower()
        for org, sponsorship in Sponsorship.active_by_org()
    }

    for tag, rows in list(result.items()):
        for item in rows:
            item["sponsorship"] = sponsors.get(item["org_id"])

    template = loader.get_template("site/search_result.html")
    env = make_env(
        **{
            "search_ixp": result.get(InternetExchange._handleref.tag),
            "search_net": result.get(Network._handleref.tag),
            "search_fac": result.get(Facility._handleref.tag),
            "search_org": result.get(Organization._handleref.tag),
            "count_ixp": len(result.get(InternetExchange._handleref.tag, [])),
            "count_net": len(result.get(Network._handleref.tag, [])),
            "count_fac": len(result.get(Facility._handleref.tag, [])),
            "count_org": len(result.get(Organization._handleref.tag, [])),
        }
    )
    return HttpResponse(template.render(env, request))


def request_logout(request):
    logout(request)
    return redirect("/")


# We are using django-otp's EmailDevice model
# to handle email as a recovery option for one
# time passwords.
#
# Unlike all the other devices supported by
# django-two-factor-auth it's token field is
# not an integer field. So the token to be verified
# needs to be turned into a string
#
# So we monkey patch it's verify_token function
# to do just that

EmailDevice._verify_token = EmailDevice.verify_token


def verify_token(self, token):
    return self._verify_token(str(token))


EmailDevice.verify_token = verify_token


class LoginView(two_factor.views.LoginView):

    """
    We extend the `LoginView` class provided
    by `two_factor` because we need to add some
    pdb specific functionality and checks
    """

    def get(self, *args, **kwargs):

        """
        If a user is already authenticated, don't show the
        login process, instead redirect to /
        """

        if self.request.user.is_authenticated:
            return redirect("/")

        return super().get(*args, **kwargs)

    @ratelimit(key="ip", rate=RATELIMITS["request_login_POST"], method="POST")
    def post(self, *args, **kwargs):

        """
        Posts to the `auth` step of the authentication
        process need to be rate limited
        """

        was_limited = getattr(self.request, "limited", False)
        if self.get_step_index() == 0 and was_limited:
            self.rate_limit_message = _(
                "Please wait a bit before trying to login again."
            )
            return self.render_goto_step("auth")

        return super().post(*args, **kwargs)

    def get_context_data(self, form, **kwargs):

        """
        If post request was rate limited the rate limit message
        needs to be communicated via the template context
        """

        context = super().get_context_data(form, **kwargs)
        context.update(rate_limit_message=getattr(self, "rate_limit_message", None))

        if "other_devices" in context:
            context["other_devices"] += [self.get_email_device()]

        return context

    def get_email_device(self):

        """
        Returns an EmailDevice instance for the requesting user
        which can be used for one time passwords.
        """

        user = self.get_user()

        if user.email_confirmed:

            # only users with confirmed emails should have
            # the option to request otp to their email address

            try:

                # check if user already has an EmailDevice instance

                device = EmailDevice.objects.get(user=user)

                if not device.confirmed:

                    # sync confirmed status

                    device.confirmed = True
                    device.save()
            except EmailDevice.DoesNotExist:

                # create EmaiLDevice object for user if it does
                # not exist

                device = EmailDevice.objects.create(user=user, confirmed=True)

            # django-two-factor-auth needs this property set to something
            device.method = "email"

            return device
        else:

            # if user does NOT have a confirmed email address but
            # somehow has an EmailDevice object, delete it.

            try:
                device = EmailDevice.objects.get(user=user)
                device.delete()
            except EmailDevice.DoesNotExist:
                pass

        return None

    def get_device(self, step=None):

        """
        We override this so we can enable EmailDevice as a
        challenge device for one time passwords
        """

        if not self.device_cache:
            challenge_device_id = self.request.POST.get("challenge_device", None)
            if challenge_device_id:
                device = self.get_email_device()
                if device.persistent_id == challenge_device_id:
                    self.device_cache = device
                    return self.device_cache

        return super().get_device(step=step)

    def get_success_url(self):
        return self.get_redirect_url()

    def get_redirect_url(self):

        """
        Specifies which redirect urls are valid
        """

        redir = self.request.POST.get("next") or "/"

        # if the redirect url is to logout that makes little
        # sense as the user would get logged out immediately
        # after logging in, substitute with a redirect to `/` instead

        if redir == "/logout":
            redir = "/"

        # check if the redirect url can be resolved to a view
        # if yes, it's a valid redirect

        try:
            resolve(redir)
        except Resolver404:

            # url could not be resolved to a view, so it's likely
            # invalid or pointing somewhere externally, the only
            # external urls we want to allow are the redirect urls
            # of oauth applications set up in peeringdb

            if not is_oauth_authorize(redir):
                redir = "/"

        return redir

    def done(self, form_list, **kwargs):

        """
        User authenticated succesfully, set language options
        """

        response = super().done(form_list, **kwargs)

        # TODO: do this via signal instead?

        user_language = self.get_user().get_locale()
        translation.activate(user_language)
        self.request.session[translation.LANGUAGE_SESSION_KEY] = user_language

        return redirect(self.get_success_url())


@require_http_methods(["POST"])
@ratelimit(key="ip", rate=RATELIMITS["request_translation"], method="POST")
def request_translation(request, data_type):

    if not request.user.is_authenticated:
        return JsonResponse(
            {"status": "error", "error": "Please login to use translation service"}
        )

    user_language = request.user.get_locale()
    if not user_language:
        user_language = "en"

    note = request.POST.get("note")
    target = user_language

    if note and target:

        translationURL = "https://translation.googleapis.com/language/translate/v2"
        call_params = {
            "key": dj_settings.GOOGLE_GEOLOC_API_KEY,
            "q": note,
            "target": target,
        }
        reply = requests.post(translationURL, params=call_params).json()

        if not "data" in reply:
            return JsonResponse({"status": request.POST, "error": reply})

        return JsonResponse(
            {"status": request.POST, "translation": reply["data"]["translations"][0]}
        )

    return JsonResponse(
        {"status": "error", "error": "No text or no language specified"}
    )


@require_http_methods(["POST"])
def network_reset_ixf_proposals(request, net_id):
    net = Network.objects.get(id=net_id)

    allowed = has_perms(request.user, net, PERM_CRUD)

    if not allowed:
        return JsonResponse({"non_field_errors": [_("Permission denied")]}, status=401)

    qset = IXFMemberData.objects.filter(asn=net.asn)
    qset.update(dismissed=False)

    return JsonResponse({"status": "ok"})


@require_http_methods(["POST"])
def network_dismiss_ixf_proposal(request, net_id, ixf_id):
    ixf_member_data = IXFMemberData.objects.get(id=ixf_id)
    net = ixf_member_data.net

    allowed = has_perms(request.user, net, PERM_CRUD)

    if not allowed:
        return JsonResponse({"non_field_errors": [_("Permission denied")]}, status=401)

    ixf_member_data.dismissed = True
    ixf_member_data.save()

    return JsonResponse({"status": "ok"})