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453 lines
16 KiB
453 lines
16 KiB
from datetime import timedelta
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import random
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from secrets import token_urlsafe
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from urllib.parse import quote, urlencode
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import uuid
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from django.conf import settings
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from django.contrib.auth.hashers import check_password, make_password
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from django.contrib.auth.models import User
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from django.core.signing import TimestampSigner
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from django.db import models
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from django.db.models import Count, Q
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from django.urls import reverse
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from django.utils import timezone
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from fido2.ctap2 import AttestedCredentialData
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from hc.lib import emails
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from hc.lib.date import month_boundaries
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import pytz
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NO_NAG = timedelta()
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NAG_PERIODS = (
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(NO_NAG, "Disabled"),
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(timedelta(hours=1), "Hourly"),
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(timedelta(days=1), "Daily"),
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)
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REPORT_CHOICES = (("off", "Off"), ("weekly", "Weekly"), ("monthly", "Monthly"))
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def month(dt):
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""" For a given datetime, return the matching first-day-of-month date. """
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return dt.date().replace(day=1)
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class ProfileManager(models.Manager):
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def for_user(self, user):
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try:
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return user.profile
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except Profile.DoesNotExist:
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profile = Profile(user=user)
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if not settings.USE_PAYMENTS:
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# If not using payments, set high limits
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profile.check_limit = 500
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profile.sms_limit = 500
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profile.call_limit = 500
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profile.team_limit = 500
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profile.save()
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return profile
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class Profile(models.Model):
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user = models.OneToOneField(User, models.CASCADE, blank=True, null=True)
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next_report_date = models.DateTimeField(null=True, blank=True)
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reports = models.CharField(max_length=10, default="monthly", choices=REPORT_CHOICES)
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nag_period = models.DurationField(default=NO_NAG, choices=NAG_PERIODS)
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next_nag_date = models.DateTimeField(null=True, blank=True)
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ping_log_limit = models.IntegerField(default=100)
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check_limit = models.IntegerField(default=20)
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token = models.CharField(max_length=128, blank=True)
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last_sms_date = models.DateTimeField(null=True, blank=True)
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sms_limit = models.IntegerField(default=5)
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sms_sent = models.IntegerField(default=0)
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last_call_date = models.DateTimeField(null=True, blank=True)
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call_limit = models.IntegerField(default=0)
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calls_sent = models.IntegerField(default=0)
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team_limit = models.IntegerField(default=2)
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sort = models.CharField(max_length=20, default="created")
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deletion_notice_date = models.DateTimeField(null=True, blank=True)
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last_active_date = models.DateTimeField(null=True, blank=True)
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tz = models.CharField(max_length=36, default="UTC")
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theme = models.CharField(max_length=10, null=True, blank=True)
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totp = models.CharField(max_length=32, null=True, blank=True)
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totp_created = models.DateTimeField(null=True, blank=True)
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objects = ProfileManager()
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def __str__(self):
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return "Profile for %s" % self.user.email
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def notifications_url(self):
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return settings.SITE_ROOT + reverse("hc-notifications")
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def reports_unsub_url(self):
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signer = TimestampSigner(salt="reports")
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signed_username = signer.sign(self.user.username)
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path = reverse("hc-unsubscribe-reports", args=[signed_username])
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return settings.SITE_ROOT + path
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def prepare_token(self, salt):
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token = token_urlsafe(24)
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self.token = make_password(token, salt)
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self.save()
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return token
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def check_token(self, token, salt):
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return salt in self.token and check_password(token, self.token)
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def send_instant_login_link(self, inviting_project=None, redirect_url=None):
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token = self.prepare_token("login")
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path = reverse("hc-check-token", args=[self.user.username, token])
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if redirect_url:
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path += "?next=%s" % redirect_url
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ctx = {
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"button_text": "Sign In",
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"button_url": settings.SITE_ROOT + path,
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"inviting_project": inviting_project,
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}
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emails.login(self.user.email, ctx)
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def send_transfer_request(self, project):
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token = self.prepare_token("login")
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settings_path = reverse("hc-project-settings", args=[project.code])
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path = reverse("hc-check-token", args=[self.user.username, token])
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path += "?next=%s" % settings_path
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ctx = {
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"button_text": "Project Settings",
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"button_url": settings.SITE_ROOT + path,
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"project": project,
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}
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emails.transfer_request(self.user.email, ctx)
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def send_sms_limit_notice(self, transport):
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ctx = {"transport": transport, "limit": self.sms_limit}
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if self.sms_limit != 500 and settings.USE_PAYMENTS:
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ctx["url"] = settings.SITE_ROOT + reverse("hc-pricing")
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emails.sms_limit(self.user.email, ctx)
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def send_call_limit_notice(self):
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ctx = {"limit": self.call_limit}
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if self.call_limit != 500 and settings.USE_PAYMENTS:
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ctx["url"] = settings.SITE_ROOT + reverse("hc-pricing")
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emails.call_limit(self.user.email, ctx)
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def projects(self):
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""" Return a queryset of all projects we have access to. """
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is_owner = Q(owner_id=self.user_id)
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is_member = Q(member__user_id=self.user_id)
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q = Project.objects.filter(is_owner | is_member)
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return q.distinct().order_by("name")
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def annotated_projects(self):
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""" Return all projects, annotated with 'n_down'. """
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# Subquery for getting project ids
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project_ids = self.projects().values("id")
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# Main query with the n_down annotation.
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# Must use the subquery, otherwise ORM gets confused by
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# joins and group by's
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q = Project.objects.filter(id__in=project_ids)
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n_down = Count("check", filter=Q(check__status="down"))
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q = q.annotate(n_down=n_down)
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return q.order_by("name")
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def checks_from_all_projects(self):
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""" Return a queryset of checks from projects we have access to. """
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project_ids = self.projects().values("id")
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from hc.api.models import Check
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return Check.objects.filter(project_id__in=project_ids)
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def send_report(self, nag=False):
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checks = self.checks_from_all_projects()
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# Has there been a ping in last 6 months?
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result = checks.aggregate(models.Max("last_ping"))
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last_ping = result["last_ping__max"]
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six_months_ago = timezone.now() - timedelta(days=180)
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if last_ping is None or last_ping < six_months_ago:
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return False
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# Is there at least one check that is down?
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num_down = checks.filter(status="down").count()
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if nag and num_down == 0:
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return False
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# Sort checks by project. Need this because will group by project in
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# template.
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checks = checks.select_related("project")
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checks = checks.order_by("project_id")
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# list() executes the query, to avoid DB access while
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# rendering the template
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checks = list(checks)
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unsub_url = self.reports_unsub_url()
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headers = {
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"List-Unsubscribe": "<%s>" % unsub_url,
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"X-Bounce-Url": unsub_url,
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"List-Unsubscribe-Post": "List-Unsubscribe=One-Click",
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}
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boundaries = month_boundaries(months=3)
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# throw away the current month, keep two previous months
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boundaries.pop()
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ctx = {
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"checks": checks,
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"sort": self.sort,
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"now": timezone.now(),
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"unsub_link": unsub_url,
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"notifications_url": self.notifications_url(),
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"nag": nag,
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"nag_period": self.nag_period.total_seconds(),
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"num_down": num_down,
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"month_boundaries": boundaries,
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"monthly_or_weekly": self.reports,
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}
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emails.report(self.user.email, ctx, headers)
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return True
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def sms_sent_this_month(self):
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# IF last_sms_date was never set, we have not sent any messages yet.
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if not self.last_sms_date:
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return 0
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# If last sent date is not from this month, we've sent 0 this month.
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if month(timezone.now()) > month(self.last_sms_date):
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return 0
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return self.sms_sent
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def authorize_sms(self):
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""" If monthly limit not exceeded, increase counter and return True """
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sent_this_month = self.sms_sent_this_month()
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if sent_this_month >= self.sms_limit:
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return False
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self.sms_sent = sent_this_month + 1
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self.last_sms_date = timezone.now()
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self.save()
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return True
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def calls_sent_this_month(self):
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# IF last_call_date was never set, we have not made any phone calls yet.
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if not self.last_call_date:
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return 0
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# If last sent date is not from this month, we've made 0 calls this month.
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if month(timezone.now()) > month(self.last_call_date):
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return 0
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return self.calls_sent
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def authorize_call(self):
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""" If monthly limit not exceeded, increase counter and return True """
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sent_this_month = self.calls_sent_this_month()
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if sent_this_month >= self.call_limit:
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return False
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self.calls_sent = sent_this_month + 1
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self.last_call_date = timezone.now()
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self.save()
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return True
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def num_checks_used(self):
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from hc.api.models import Check
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return Check.objects.filter(project__owner_id=self.user_id).count()
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def num_checks_available(self):
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return self.check_limit - self.num_checks_used()
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def can_accept(self, project):
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return project.num_checks() <= self.num_checks_available()
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def update_next_nag_date(self):
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any_down = self.checks_from_all_projects().filter(status="down").exists()
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if any_down and self.next_nag_date is None and self.nag_period:
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self.next_nag_date = timezone.now() + self.nag_period
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self.save(update_fields=["next_nag_date"])
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elif not any_down and self.next_nag_date:
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self.next_nag_date = None
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self.save(update_fields=["next_nag_date"])
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def choose_next_report_date(self):
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""" Calculate the target date for the next monthly/weekly report.
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Monthly reports should get sent on 1st of each month, between
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9AM and 11AM in user's timezone.
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Weekly reports should get sent on Mondays, between
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9AM and 11AM in user's timezone.
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"""
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if self.reports == "off":
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return None
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tz = pytz.timezone(self.tz)
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dt = timezone.now().astimezone(tz)
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dt = dt.replace(hour=9, minute=0) + timedelta(minutes=random.randrange(0, 120))
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while True:
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dt += timedelta(days=1)
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if self.reports == "monthly" and dt.day == 1:
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return dt
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elif self.reports == "weekly" and dt.weekday() == 0:
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return dt
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class Project(models.Model):
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code = models.UUIDField(default=uuid.uuid4, unique=True)
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name = models.CharField(max_length=200, blank=True)
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owner = models.ForeignKey(User, models.CASCADE)
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api_key = models.CharField(max_length=128, blank=True, db_index=True)
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api_key_readonly = models.CharField(max_length=128, blank=True, db_index=True)
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badge_key = models.CharField(max_length=150, unique=True)
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ping_key = models.CharField(max_length=128, blank=True, null=True, unique=True)
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show_slugs = models.BooleanField(default=False)
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def __str__(self):
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return self.name or self.owner.email
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@property
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def owner_profile(self):
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return Profile.objects.for_user(self.owner)
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def num_checks(self):
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return self.check_set.count()
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def num_checks_available(self):
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return self.owner_profile.num_checks_available()
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def invite_suggestions(self):
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q = User.objects.filter(memberships__project__owner_id=self.owner_id)
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q = q.exclude(memberships__project=self)
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return q.distinct().order_by("email")
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def can_invite_new_users(self):
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q = User.objects.filter(memberships__project__owner_id=self.owner_id)
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used = q.distinct().count()
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return used < self.owner_profile.team_limit
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def invite(self, user, role):
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if Member.objects.filter(user=user, project=self).exists():
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return False
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if self.owner_id == user.id:
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return False
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Member.objects.create(user=user, project=self, role=role)
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checks_url = reverse("hc-checks", args=[self.code])
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user.profile.send_instant_login_link(self, redirect_url=checks_url)
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return True
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def update_next_nag_dates(self):
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""" Update next_nag_date on profiles of all members of this project. """
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is_owner = Q(user_id=self.owner_id)
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is_member = Q(user__memberships__project=self)
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q = Profile.objects.filter(is_owner | is_member).exclude(nag_period=NO_NAG)
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for profile in q:
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profile.update_next_nag_date()
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def overall_status(self):
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if not hasattr(self, "_overall_status"):
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self._overall_status = "up"
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for check in self.check_set.all():
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check_status = check.get_status()
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if check_status == "grace" and self._overall_status == "up":
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self._overall_status = "grace"
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elif check_status == "down":
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self._overall_status = "down"
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break
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return self._overall_status
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def get_n_down(self):
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result = 0
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for check in self.check_set.all():
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if check.get_status() == "down":
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result += 1
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return result
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def have_channel_issues(self):
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errors = list(self.channel_set.values_list("last_error", flat=True))
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# It's a problem if a project has no integrations at all
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if len(errors) == 0:
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return True
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# It's a problem if any integration has a logged error
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return True if max(errors) else False
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def transfer_request(self):
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return self.member_set.filter(transfer_request_date__isnull=False).first()
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def dashboard_url(self):
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if not self.api_key_readonly:
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return None
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frag = urlencode({self.api_key_readonly: str(self)}, quote_via=quote)
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return reverse("hc-dashboard") + "#" + frag
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def checks_url(self):
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return settings.SITE_ROOT + reverse("hc-checks", args=[self.code])
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class Member(models.Model):
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class Role(models.TextChoices):
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READONLY = "r", "Read-only"
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REGULAR = "w", "Member"
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MANAGER = "m", "Manager"
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user = models.ForeignKey(User, models.CASCADE, related_name="memberships")
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project = models.ForeignKey(Project, models.CASCADE)
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transfer_request_date = models.DateTimeField(null=True, blank=True)
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role = models.CharField(max_length=1, default=Role.REGULAR, choices=Role.choices)
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields=["user", "project"], name="accounts_member_no_duplicates"
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)
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]
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def can_accept(self):
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return self.user.profile.can_accept(self.project)
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@property
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def is_rw(self):
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return self.role in (Member.Role.REGULAR, Member.Role.MANAGER)
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class Credential(models.Model):
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code = models.UUIDField(default=uuid.uuid4, unique=True)
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name = models.CharField(max_length=100)
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user = models.ForeignKey(User, models.CASCADE, related_name="credentials")
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created = models.DateTimeField(auto_now_add=True)
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data = models.BinaryField()
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def unpack(self):
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unpacked, remaining_data = AttestedCredentialData.unpack_from(self.data)
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return unpacked
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