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545 lines
17 KiB
545 lines
17 KiB
from datetime import timedelta as td
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from urllib.parse import urlparse
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import uuid
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from django.db import transaction
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from django.conf import settings
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from django.contrib import messages
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from django.contrib.auth import login as auth_login
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from django.contrib.auth import logout as auth_logout
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from django.contrib.auth import authenticate
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from django.contrib.auth.decorators import login_required
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from django.contrib.auth.models import User
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from django.core import signing
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from django.http import (
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HttpResponseForbidden,
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HttpResponseBadRequest,
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HttpResponseNotFound,
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)
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from django.shortcuts import get_object_or_404, redirect, render
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from django.utils.timezone import now
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from django.urls import resolve, Resolver404
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from django.views.decorators.csrf import csrf_exempt
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from django.views.decorators.http import require_POST
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from hc.accounts import forms
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from hc.accounts.models import Profile, Project, Member
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from hc.api.models import Channel, Check, TokenBucket
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from hc.lib.date import choose_next_report_date
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from hc.payments.models import Subscription
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NEXT_WHITELIST = (
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"hc-checks",
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"hc-details",
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"hc-log",
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"hc-p-channels",
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"hc-add-slack",
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"hc-add-pushover",
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"hc-add-telegram",
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"hc-project-settings",
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)
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def _is_whitelisted(redirect_url):
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if not redirect_url:
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return False
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parsed = urlparse(redirect_url)
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try:
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match = resolve(parsed.path)
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except Resolver404:
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return False
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return match.url_name in NEXT_WHITELIST
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def _make_user(email, with_project=True):
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username = str(uuid.uuid4())[:30]
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user = User(username=username, email=email)
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user.set_unusable_password()
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user.save()
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project = None
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if with_project:
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project = Project(owner=user)
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project.badge_key = user.username
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project.save()
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check = Check(project=project)
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check.name = "My First Check"
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check.save()
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channel = Channel(project=project)
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channel.kind = "email"
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channel.value = email
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channel.email_verified = True
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channel.save()
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channel.checks.add(check)
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# Ensure a profile gets created
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Profile.objects.for_user(user)
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return user
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def _redirect_after_login(request):
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""" Redirect to the URL indicated in ?next= query parameter. """
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redirect_url = request.GET.get("next")
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if _is_whitelisted(redirect_url):
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return redirect(redirect_url)
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if request.user.project_set.count() == 1:
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project = request.user.project_set.first()
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return redirect("hc-checks", project.code)
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return redirect("hc-index")
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def login(request):
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form = forms.PasswordLoginForm()
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magic_form = forms.EmailLoginForm()
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if request.method == "POST":
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if request.POST.get("action") == "login":
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form = forms.PasswordLoginForm(request.POST)
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if form.is_valid():
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auth_login(request, form.user)
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return _redirect_after_login(request)
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else:
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magic_form = forms.EmailLoginForm(request.POST)
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if magic_form.is_valid():
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redirect_url = request.GET.get("next")
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if not _is_whitelisted(redirect_url):
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redirect_url = None
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profile = Profile.objects.for_user(magic_form.user)
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profile.send_instant_login_link(redirect_url=redirect_url)
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response = redirect("hc-login-link-sent")
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# check_token_submit looks for this cookie to decide if
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# it needs to do the extra POST step.
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response.set_cookie("auto-login", "1", max_age=300, httponly=True)
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return response
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bad_link = request.session.pop("bad_link", None)
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ctx = {
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"page": "login",
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"form": form,
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"magic_form": magic_form,
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"bad_link": bad_link,
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"registration_open": settings.REGISTRATION_OPEN,
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}
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return render(request, "accounts/login.html", ctx)
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def logout(request):
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auth_logout(request)
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return redirect("hc-index")
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@require_POST
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@csrf_exempt
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def signup(request):
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if not settings.REGISTRATION_OPEN:
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return HttpResponseForbidden()
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ctx = {}
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form = forms.AvailableEmailForm(request.POST)
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if form.is_valid():
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email = form.cleaned_data["identity"]
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user = _make_user(email)
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profile = Profile.objects.for_user(user)
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profile.send_instant_login_link()
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ctx["created"] = True
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else:
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ctx = {"form": form}
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response = render(request, "accounts/signup_result.html", ctx)
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if ctx.get("created"):
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response.set_cookie("auto-login", "1", max_age=300, httponly=True)
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return response
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def login_link_sent(request):
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return render(request, "accounts/login_link_sent.html")
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def link_sent(request):
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return render(request, "accounts/link_sent.html")
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def check_token(request, username, token):
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if request.user.is_authenticated and request.user.username == username:
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# User is already logged in
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return _redirect_after_login(request)
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# Some email servers open links in emails to check for malicious content.
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# To work around this, we sign user in if the method is POST
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# *or* if the browser presents a cookie we had set when sending the login link.
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#
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# If the method is GET, we instead serve a HTML form and a piece
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# of Javascript to automatically submit it.
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if request.method == "POST" or "auto-login" in request.COOKIES:
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user = authenticate(username=username, token=token)
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if user is not None and user.is_active:
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user.profile.token = ""
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user.profile.save()
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auth_login(request, user)
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return _redirect_after_login(request)
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request.session["bad_link"] = True
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return redirect("hc-login")
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return render(request, "accounts/check_token_submit.html")
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@login_required
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def profile(request):
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profile = request.profile
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ctx = {"page": "profile", "profile": profile, "my_projects_status": "default"}
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if request.method == "POST":
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if "change_email" in request.POST:
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profile.send_change_email_link()
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return redirect("hc-link-sent")
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elif "set_password" in request.POST:
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profile.send_set_password_link()
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return redirect("hc-link-sent")
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elif "leave_project" in request.POST:
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code = request.POST["code"]
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try:
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project = Project.objects.get(code=code, member__user=request.user)
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except Project.DoesNotExist:
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return HttpResponseBadRequest()
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Member.objects.filter(project=project, user=request.user).delete()
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ctx["left_project"] = project
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ctx["my_projects_status"] = "info"
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# Retrieve projects right before rendering the template--
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# The list of the projects might have *just* changed
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ctx["projects"] = list(profile.projects())
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return render(request, "accounts/profile.html", ctx)
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@login_required
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@require_POST
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def add_project(request):
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form = forms.ProjectNameForm(request.POST)
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if not form.is_valid():
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return HttpResponseBadRequest()
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project = Project(owner=request.user)
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project.code = project.badge_key = str(uuid.uuid4())
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project.name = form.cleaned_data["name"]
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project.save()
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return redirect("hc-checks", project.code)
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@login_required
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def project(request, code):
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if request.user.is_superuser:
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q = Project.objects
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else:
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q = request.profile.projects()
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try:
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project = q.get(code=code)
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except Project.DoesNotExist:
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return HttpResponseNotFound()
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is_owner = project.owner_id == request.user.id
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ctx = {
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"page": "project",
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"project": project,
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"is_owner": is_owner,
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"show_api_keys": "show_api_keys" in request.GET,
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}
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if request.method == "POST":
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if "create_api_keys" in request.POST:
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project.set_api_keys()
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project.save()
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ctx["show_api_keys"] = True
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ctx["api_keys_created"] = True
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ctx["api_status"] = "success"
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elif "revoke_api_keys" in request.POST:
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project.api_key = ""
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project.api_key_readonly = ""
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project.save()
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ctx["api_keys_revoked"] = True
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ctx["api_status"] = "info"
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elif "show_api_keys" in request.POST:
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ctx["show_api_keys"] = True
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elif "invite_team_member" in request.POST:
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if not is_owner:
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return HttpResponseForbidden()
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form = forms.InviteTeamMemberForm(request.POST)
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if form.is_valid():
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email = form.cleaned_data["email"]
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invite_suggestions = project.invite_suggestions()
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if not invite_suggestions.filter(email=email).exists():
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# We're inviting a new user. Are we within team size limit?
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if not project.can_invite_new_users():
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return HttpResponseForbidden()
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# And are we not hitting a rate limit?
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if not TokenBucket.authorize_invite(request.user):
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return render(request, "try_later.html")
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try:
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user = User.objects.get(email=email)
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except User.DoesNotExist:
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user = _make_user(email, with_project=False)
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project.invite(user)
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ctx["team_member_invited"] = email
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ctx["team_status"] = "success"
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elif "remove_team_member" in request.POST:
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if not is_owner:
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return HttpResponseForbidden()
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form = forms.RemoveTeamMemberForm(request.POST)
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if form.is_valid():
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q = User.objects
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q = q.filter(email=form.cleaned_data["email"])
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q = q.filter(memberships__project=project)
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farewell_user = q.first()
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if farewell_user is None:
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return HttpResponseBadRequest()
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Member.objects.filter(project=project, user=farewell_user).delete()
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ctx["team_member_removed"] = form.cleaned_data["email"]
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ctx["team_status"] = "info"
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elif "set_project_name" in request.POST:
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form = forms.ProjectNameForm(request.POST)
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if form.is_valid():
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project.name = form.cleaned_data["name"]
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project.save()
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ctx["project_name_updated"] = True
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ctx["project_name_status"] = "success"
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elif "transfer_project" in request.POST:
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if not is_owner:
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return HttpResponseForbidden()
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form = forms.TransferForm(request.POST)
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if form.is_valid():
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# Look up the proposed new owner
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email = form.cleaned_data["email"]
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try:
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membership = project.member_set.filter(user__email=email).get()
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except Member.DoesNotExist:
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return HttpResponseBadRequest()
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# Revoke any previous transfer requests
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project.member_set.update(transfer_request_date=None)
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# Initiate the new request
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membership.transfer_request_date = now()
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membership.save()
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# Send an email notification
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profile = Profile.objects.for_user(membership.user)
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profile.send_transfer_request(project)
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ctx["transfer_initiated"] = True
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ctx["transfer_status"] = "success"
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elif "cancel_transfer" in request.POST:
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if not is_owner:
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return HttpResponseForbidden()
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project.member_set.update(transfer_request_date=None)
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ctx["transfer_cancelled"] = True
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ctx["transfer_status"] = "success"
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elif "accept_transfer" in request.POST:
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tr = project.transfer_request()
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if not tr or tr.user != request.user:
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return HttpResponseForbidden()
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if not tr.can_accept():
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return HttpResponseBadRequest()
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with transaction.atomic():
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# 1. Reuse the existing membership, and change its user
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tr.user = project.owner
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tr.transfer_request_date = None
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tr.save()
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# 2. Change project's owner
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project.owner = request.user
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project.save()
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ctx["is_owner"] = True
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messages.success(request, "You are now the owner of this project!")
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elif "reject_transfer" in request.POST:
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tr = project.transfer_request()
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if not tr or tr.user != request.user:
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return HttpResponseForbidden()
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tr.transfer_request_date = None
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tr.save()
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return render(request, "accounts/project.html", ctx)
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@login_required
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def notifications(request):
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profile = request.profile
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ctx = {"status": "default", "page": "profile", "profile": profile}
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if request.method == "POST":
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form = forms.ReportSettingsForm(request.POST)
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if form.is_valid():
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if profile.reports_allowed != form.cleaned_data["reports_allowed"]:
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profile.reports_allowed = form.cleaned_data["reports_allowed"]
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if profile.reports_allowed:
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profile.next_report_date = choose_next_report_date()
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else:
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profile.next_report_date = None
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if profile.nag_period != form.cleaned_data["nag_period"]:
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# Set the new nag period
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profile.nag_period = form.cleaned_data["nag_period"]
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# and schedule next_nag_date:
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if profile.nag_period:
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profile.next_nag_date = now() + profile.nag_period
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else:
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profile.next_nag_date = None
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profile.save()
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ctx["status"] = "info"
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return render(request, "accounts/notifications.html", ctx)
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@login_required
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def set_password(request, token):
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if not request.profile.check_token(token, "set-password"):
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return HttpResponseBadRequest()
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if request.method == "POST":
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form = forms.SetPasswordForm(request.POST)
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if form.is_valid():
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password = form.cleaned_data["password"]
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request.user.set_password(password)
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request.user.save()
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request.profile.token = ""
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request.profile.save()
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# Setting a password logs the user out, so here we
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# log them back in.
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u = authenticate(username=request.user.email, password=password)
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auth_login(request, u)
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messages.success(request, "Your password has been set!")
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return redirect("hc-profile")
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return render(request, "accounts/set_password.html", {})
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@login_required
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def change_email(request, token):
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if not request.profile.check_token(token, "change-email"):
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return HttpResponseBadRequest()
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if request.method == "POST":
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form = forms.ChangeEmailForm(request.POST)
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if form.is_valid():
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request.user.email = form.cleaned_data["email"]
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request.user.set_unusable_password()
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request.user.save()
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request.profile.token = ""
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request.profile.save()
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return redirect("hc-change-email-done")
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else:
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form = forms.ChangeEmailForm()
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return render(request, "accounts/change_email.html", {"form": form})
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def change_email_done(request):
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return render(request, "accounts/change_email_done.html")
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@csrf_exempt
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def unsubscribe_reports(request, signed_username):
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# Some email servers open links in emails to check for malicious content.
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# To work around this, for GET requests we serve a confirmation form.
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# If the signature is more than 5 minutes old, we also include JS code to
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# auto-submit the form.
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ctx = {}
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signer = signing.TimestampSigner(salt="reports")
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# First, check the signature without looking at the timestamp:
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try:
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username = signer.unsign(signed_username)
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except signing.BadSignature:
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return render(request, "bad_link.html")
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# Check if timestamp is older than 5 minutes:
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try:
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username = signer.unsign(signed_username, max_age=300)
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except signing.SignatureExpired:
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ctx["autosubmit"] = True
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if request.method != "POST":
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return render(request, "accounts/unsubscribe_submit.html", ctx)
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user = User.objects.get(username=username)
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profile = Profile.objects.for_user(user)
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profile.reports_allowed = False
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profile.next_report_date = None
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profile.nag_period = td()
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profile.next_nag_date = None
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profile.save()
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return render(request, "accounts/unsubscribed.html")
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@require_POST
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@login_required
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def close(request):
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user = request.user
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# Cancel their subscription:
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sub = Subscription.objects.filter(user=user).first()
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if sub:
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sub.cancel()
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user.delete()
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# Deleting user also deletes its profile, checks, channels etc.
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request.session.flush()
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return redirect("hc-index")
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@require_POST
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@login_required
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def remove_project(request, code):
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project = get_object_or_404(Project, code=code, owner=request.user)
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project.delete()
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return redirect("hc-index")
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