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298 lines
10 KiB
298 lines
10 KiB
from base64 import urlsafe_b64encode
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from datetime import timedelta
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import os
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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 hc.lib import emails
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from hc.lib.date import month_boundaries
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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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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.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_allowed = models.BooleanField(default=True)
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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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current_project = models.ForeignKey("Project", models.SET_NULL, null=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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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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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 = urlsafe_b64encode(os.urandom(24)).decode()
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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_set_password_link(self):
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token = self.prepare_token("set-password")
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path = reverse("hc-set-password", args=[token])
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ctx = {"button_text": "Set Password", "button_url": settings.SITE_ROOT + path}
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emails.set_password(self.user.email, ctx)
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def send_change_email_link(self):
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token = self.prepare_token("change-email")
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path = reverse("hc-change-email", args=[token])
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ctx = {"button_text": "Change Email", "button_url": settings.SITE_ROOT + path}
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emails.change_email(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 projects(self):
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""" Return a queryset of all projects we have access to. """
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is_owner = Q(owner=self.user)
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is_member = Q(member__user=self.user)
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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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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": month_boundaries(),
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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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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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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_available(self):
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from hc.api.models import Check
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num_used = Check.objects.filter(project__owner=self.owner).count()
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return self.owner_profile.check_limit - num_used
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def set_api_keys(self):
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self.api_key = urlsafe_b64encode(os.urandom(24)).decode()
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self.api_key_readonly = urlsafe_b64encode(os.urandom(24)).decode()
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self.save()
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def can_invite(self):
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return self.member_set.count() < self.owner_profile.team_limit
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def invite(self, user):
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Member.objects.create(user=user, project=self)
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# Switch the invited user over to the new team so they
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# notice the new team on next visit:
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user.profile.current_project = self
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user.profile.save()
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user.profile.send_instant_login_link(self)
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def set_next_nag_date(self):
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""" Set next_nag_date on profiles of all members of this project. """
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is_owner = Q(user=self.owner)
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is_member = Q(user__memberships__project=self)
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q = Profile.objects.filter(is_owner | is_member)
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q = q.exclude(nag_period=NO_NAG)
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# Exclude profiles with next_nag_date already set
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q = q.filter(next_nag_date__isnull=True)
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q.update(next_nag_date=timezone.now() + models.F("nag_period"))
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def overall_status(self):
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status = "up"
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for check in self.check_set.all():
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check_status = check.get_status(with_started=False)
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if status == "up" and check_status == "grace":
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status = "grace"
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if check_status == "down":
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status = "down"
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break
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return status
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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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class Member(models.Model):
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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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