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from datetime import timedelta as td
import json
from django.db.models import F
from django.http import HttpResponse, HttpResponseBadRequest, JsonResponse
from django.utils import timezone
from django.views.decorators.cache import never_cache
from django.views.decorators.csrf import csrf_exempt
from hc.api import schemas
from hc.api.decorators import check_api_key, uuid_or_400, validate_json
from hc.api.models import Check, Ping
@csrf_exempt
@uuid_or_400
@never_cache
def ping(request, code):
try:
check = Check.objects.get(code=code)
except Check.DoesNotExist:
return HttpResponseBadRequest()
check.n_pings = F("n_pings") + 1
check.last_ping = timezone.now()
if check.status == "new":
check.status = "up"
check.save()
check.refresh_from_db()
ping = Ping(owner=check)
headers = request.META
ping.n = check.n_pings
remote_addr = headers.get("HTTP_X_FORWARDED_FOR", headers["REMOTE_ADDR"])
ping.remote_addr = remote_addr.split(",")[0]
ping.scheme = headers.get("HTTP_X_FORWARDED_PROTO", "http")
ping.method = headers["REQUEST_METHOD"]
# If User-Agent is longer than 200 characters, truncate it:
ping.ua = headers.get("HTTP_USER_AGENT", "")[:200]
ping.save()
response = HttpResponse("OK")
response["Access-Control-Allow-Origin"] = "*"
return response
@csrf_exempt
def handle_email(request):
if request.method != "POST":
return HttpResponseBadRequest()
events = json.loads(request.POST["mandrill_events"])
for event in events:
for recipient_address, recipient_name in event["msg"]["to"]:
code, domain = recipient_address.split("@")
try:
check = Check.objects.get(code=code)
except ValueError:
continue
except Check.DoesNotExist:
continue
check.n_pings = F("n_pings") + 1
check.last_ping = timezone.now()
if check.status == "new":
check.status = "up"
check.save()
ping = Ping(owner=check)
ping.scheme = "email"
ping.save()
response = HttpResponse("OK")
return response
@csrf_exempt
@check_api_key
@validate_json(schemas.check)
def create_check(request):
if request.method == "GET":
code = 200
response = {
"checks": [{
"name": check.name,
"ping_url" : check.url(),
"tags": check.tags,
"timeout": int(check.timeout.total_seconds()),
"grace": int(check.grace.total_seconds()),
# "channels": check.channels,
} for check in Check.objects.filter(user=request.user)]
}
elif request.method == "POST":
check = Check(user=request.user)
check.name = str(request.json.get("name", ""))
check.tags = str(request.json.get("tags", ""))
if "timeout" in request.json:
check.timeout = td(seconds=request.json["timeout"])
if "grace" in request.json:
check.grace = td(seconds=request.json["grace"])
check.save()
# This needs to be done after saving the check, because of
# the M2M relation between checks and channels:
if request.json.get("channels") == "*":
check.assign_all_channels()
code = 201
response = {
"ping_url": check.url()
}
else:
return HttpResponse(status=405)
return JsonResponse(response, status=code)