210 lines
7.1 KiB
Python
210 lines
7.1 KiB
Python
from __future__ import absolute_import, division, print_function, \
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unicode_literals
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import logging
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from _mysql_exceptions import OperationalError
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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.decorators import login_required
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from django.contrib.auth.models import User
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from django.contrib.sites.shortcuts import get_current_site
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from django.core.cache import cache
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from django.http import HttpResponse, HttpResponseNotFound, \
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HttpResponseServerError, JsonResponse
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from django.shortcuts import get_object_or_404, redirect, render
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from django.template.loader import render_to_string
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from django.urls import reverse
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from django.views.decorators.http import require_POST
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from db.base.forms import TransmitterEntryForm
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from db.base.helpers import get_apikey
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from db.base.models import TRANSMITTER_STATUS, TRANSMITTER_TYPE, DemodData, \
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Mode, Satellite, Transmitter, TransmitterSuggestion
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from db.base.tasks import export_frames
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from db.base.utils import cache_statistics
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logger = logging.getLogger('db')
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def home(request):
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"""View to render home page."""
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satellites = Satellite.objects.all()
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transmitter_suggestions = TransmitterSuggestion.objects.count()
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contributors = User.objects.filter(is_active=1).count()
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statistics = cache.get('stats_transmitters')
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if not statistics:
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try:
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cache_statistics()
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statistics = cache.get('stats_transmitters')
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except OperationalError:
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pass
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return render(
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request, 'base/home.html', {
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'satellites': satellites,
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'statistics': statistics,
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'contributors': contributors,
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'transmitter_suggestions': transmitter_suggestions
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}
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)
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def custom_404(request):
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"""Custom 404 error handler."""
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return HttpResponseNotFound(render(request, '404.html'))
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def custom_500(request):
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"""Custom 500 error handler."""
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return HttpResponseServerError(render(request, '500.html'))
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def robots(request):
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data = render(request, 'robots.txt', {'environment': settings.ENVIRONMENT})
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response = HttpResponse(data, content_type='text/plain; charset=utf-8')
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return response
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def satellite(request, norad):
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"""View to render satellite page."""
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satellite = get_object_or_404(Satellite.objects, norad_cat_id=norad)
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transmitter_suggestions = TransmitterSuggestion.objects.filter(satellite=satellite)
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for transmitter_suggestion in transmitter_suggestions:
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try:
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original_transmitter = satellite.transmitters.get(uuid=transmitter_suggestion.uuid)
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transmitter_suggestion.transmitter = original_transmitter
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except Transmitter.DoesNotExist:
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transmitter_suggestion.transmitter = None
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modes = Mode.objects.all()
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types = TRANSMITTER_TYPE
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statuses = TRANSMITTER_STATUS
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# TODO: this is a horrible hack, as we have to pass the entire cache to the
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# template to iterate on, just for one satellite. See #237
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sats_cache = cache.get('stats_satellites')
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if not sats_cache:
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sats_cache = []
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try:
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latest_frame = DemodData.objects.filter(satellite=satellite).order_by('-id')[0]
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except Exception:
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latest_frame = ''
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return render(
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request, 'base/satellite.html', {
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'satellite': satellite,
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'transmitter_suggestions': transmitter_suggestions,
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'modes': modes,
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'types': types,
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'statuses': statuses,
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'latest_frame': latest_frame,
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'sats_cache': sats_cache,
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'mapbox_token': settings.MAPBOX_TOKEN
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}
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)
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@login_required
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def request_export(request, norad, period=None):
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"""View to request frames export download."""
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export_frames.delay(norad, request.user.email, request.user.pk, period)
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messages.success(
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request, ('Your download request was received. '
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'You will get an email when it\'s ready')
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)
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return redirect(reverse('satellite', kwargs={'norad': norad}))
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@login_required
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@require_POST
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def transmitter_suggestion(request):
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"""View to process transmitter suggestion form"""
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transmitter_form = TransmitterEntryForm(request.POST)
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if transmitter_form.is_valid():
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transmitter = transmitter_form.save(commit=False)
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transmitter.user = request.user
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transmitter.reviewed = False
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transmitter.approved = False
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uuid = transmitter_form.cleaned_data['uuid']
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if uuid is not None and len(uuid) > 0:
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transmitter.uuid = uuid
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transmitter.save()
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# Notify admins
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admins = User.objects.filter(is_superuser=True)
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site = get_current_site(request)
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subject = '[{0}] A new suggestion for {1} was submitted'.format(
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site.name, transmitter.satellite.name
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)
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template = 'emails/new_transmitter_suggestion.txt'
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saturl = '{0}{1}'.format(
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site.domain,
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reverse('satellite', kwargs={'norad': transmitter.satellite.norad_cat_id})
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)
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data = {
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'satname': transmitter.satellite.name,
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'saturl': saturl,
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'sitedomain': site.domain,
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'contributor': transmitter.user
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}
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message = render_to_string(template, {'data': data})
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for user in admins:
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try:
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user.email_user(subject, message, from_email=settings.DEFAULT_FROM_EMAIL)
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except Exception:
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logger.error('Could not send email to user', exc_info=True)
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messages.success(
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request,
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('Your transmitter suggestion was stored successfully. '
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'Thanks for contibuting!')
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)
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return redirect(reverse('satellite', kwargs={'norad': transmitter.satellite.norad_cat_id}))
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else:
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logger.error(
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'Suggestion form was not valid {0}'.format(transmitter_form.errors),
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exc_info=True,
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extra={
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'form': transmitter_form.errors,
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}
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)
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messages.error(request, 'We are sorry, but some error occured :(')
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return redirect(reverse('home'))
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def about(request):
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"""View to render about page."""
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return render(request, 'base/about.html')
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def faq(request):
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"""View to render faq page."""
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return render(request, 'base/faq.html')
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def stats(request):
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"""View to render stats page."""
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satellites = cache.get('stats_satellites')
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observers = cache.get('stats_observers')
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# TODO this will never succeed, cache_statistics() runs too long to be live
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if not satellites or not observers:
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try:
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cache_statistics()
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except OperationalError:
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pass
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return render(request, 'base/stats.html', {'satellites': satellites, 'observers': observers})
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def statistics(request):
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statistics = cache.get('stats_transmitters')
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if not statistics:
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cache_statistics()
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statistics = []
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return JsonResponse(statistics, safe=False)
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@login_required
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def users_edit(request):
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"""View to render user settings page."""
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token = get_apikey(request.user)
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return render(request, 'base/users_edit.html', {'token': token})
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