views.py 文件源码

def add_pushover(request):
    if settings.PUSHOVER_API_TOKEN is None or settings.PUSHOVER_SUBSCRIPTION_URL is None:
        raise Http404("pushover integration is not available")

    if request.method == "POST":
        # Initiate the subscription
        nonce = get_random_string()
        request.session["po_nonce"] = nonce

        failure_url = settings.SITE_ROOT + reverse("hc-channels")
        success_url = settings.SITE_ROOT + reverse("hc-add-pushover") + "?" + urlencode({
            "nonce": nonce,
            "prio": request.POST.get("po_priority", "0"),
        })
        subscription_url = settings.PUSHOVER_SUBSCRIPTION_URL + "?" + urlencode({
            "success": success_url,
            "failure": failure_url,
        })

        return redirect(subscription_url)

    # Handle successful subscriptions
    if "pushover_user_key" in request.GET:
        if "nonce" not in request.GET or "prio" not in request.GET:
            return HttpResponseBadRequest()

        # Validate nonce
        if request.GET["nonce"] != request.session.get("po_nonce"):
            return HttpResponseForbidden()

        # Validate priority
        if request.GET["prio"] not in ("-2", "-1", "0", "1", "2"):
            return HttpResponseBadRequest()

        # All looks well--
        del request.session["po_nonce"]

        if request.GET.get("pushover_unsubscribed") == "1":
            # Unsubscription: delete all Pushover channels for this user
            Channel.objects.filter(user=request.user, kind="po").delete()
            return redirect("hc-channels")
        else:
            # Subscription
            user_key = request.GET["pushover_user_key"]
            priority = int(request.GET["prio"])

            return do_add_channel(request, {
                "kind": "po",
                "value": "%s|%d" % (user_key, priority),
            })

    # Show Integration Settings form
    ctx = {
        "page": "channels",
        "po_retry_delay": td(seconds=settings.PUSHOVER_EMERGENCY_RETRY_DELAY),
        "po_expiration": td(seconds=settings.PUSHOVER_EMERGENCY_EXPIRATION),
    }
    return render(request, "integrations/add_pushover.html", ctx)