from django import forms from django.core.serializers.json import DjangoJSONEncoder from django.db.models import Q from django.http import Http404, HttpResponse from django.shortcuts import get_object_or_404 from django.views.decorators.csrf import csrf_exempt from django.views.generic.simple import direct_to_template from django.utils import simplejson from main.utils import make_choice from .models import Mirror, MirrorUrl, MirrorProtocol from .utils import get_mirror_statuses, get_mirror_errors import datetime class MirrorlistForm(forms.Form): country = forms.MultipleChoiceField(required=False) protocol = forms.MultipleChoiceField(required=False) ip_version = forms.MultipleChoiceField(required=False, label="IP version", choices=(('4','IPv4'), ('6','IPv6'))) use_mirror_status = forms.BooleanField(required=False) def __init__(self, *args, **kwargs): super(MirrorlistForm, self).__init__(*args, **kwargs) countries = Mirror.objects.filter(active=True).values_list( 'country', flat=True).distinct().order_by('country') self.fields['country'].choices = [('all','All')] + make_choice( countries) self.fields['country'].initial = ['all'] protos = make_choice( MirrorProtocol.objects.filter(is_download=True)) self.fields['protocol'].choices = protos self.fields['protocol'].initial = [t[0] for t in protos] self.fields['ip_version'].initial = ['4'] @csrf_exempt def generate_mirrorlist(request): if request.method == 'POST' or len(request.GET) > 0: form = MirrorlistForm(data=request.REQUEST) if form.is_valid(): countries = form.cleaned_data['country'] protocols = form.cleaned_data['protocol'] use_status = form.cleaned_data['use_mirror_status'] ipv4 = '4' in form.cleaned_data['ip_version'] ipv6 = '6' in form.cleaned_data['ip_version'] return find_mirrors(request, countries, protocols, use_status, ipv4, ipv6) else: form = MirrorlistForm() return direct_to_template(request, 'mirrors/index.html', {'mirrorlist_form': form}) def find_mirrors(request, countries=None, protocols=None, use_status=False, ipv4_supported=True, ipv6_supported=True): if not protocols: protocols = MirrorProtocol.objects.filter( is_download=True).values_list('protocol', flat=True) qset = MirrorUrl.objects.select_related().filter( protocol__protocol__in=protocols, mirror__public=True, mirror__active=True, ) if countries and 'all' not in countries: qset = qset.filter(Q(country__in=countries) | Q(mirror__country__in=countries)) ip_version = Q() if ipv4_supported: ip_version |= Q(has_ipv4=True) if ipv6_supported: ip_version |= Q(has_ipv6=True) qset = qset.filter(ip_version) if not use_status: urls = qset.order_by('mirror__name', 'url') urls = sorted(urls, key=lambda x: x.real_country) template = 'mirrors/mirrorlist.txt' else: status_info = get_mirror_statuses() scores = dict([(u.id, u.score) for u in status_info['urls']]) urls = [] for u in qset: u.score = scores.get(u.id, None) # also include mirrors that don't have an up to date score # (as opposed to those that have been set with no score) if (u.id not in scores) or \ (u.score and u.score < 100.0): urls.append(u) # if a url doesn't have a score, treat it as the highest possible urls = sorted(urls, key=lambda x: x.score or 100.0) template = 'mirrors/mirrorlist_status.txt' return direct_to_template(request, template, { 'mirror_urls': urls, }, mimetype='text/plain') def mirrors(request): mirror_list = Mirror.objects.select_related().order_by('tier', 'country') if not request.user.is_authenticated(): mirror_list = mirror_list.filter(public=True, active=True) return direct_to_template(request, 'mirrors/mirrors.html', {'mirror_list': mirror_list}) def mirror_details(request, name): mirror = get_object_or_404(Mirror, name=name) if not request.user.is_authenticated() and \ (not mirror.public or not mirror.active): raise Http404 status_info = get_mirror_statuses() checked_urls = [url for url in status_info['urls'] \ if url.mirror_id == mirror.id] all_urls = mirror.urls.select_related('protocol') # get each item from checked_urls and supplement with anything in all_urls # if it wasn't there all_urls = set(checked_urls).union(all_urls) all_urls = sorted(all_urls, key=lambda x: x.url) return direct_to_template(request, 'mirrors/mirror_details.html', {'mirror': mirror, 'urls': all_urls}) def status(request): bad_timedelta = datetime.timedelta(days=3) status_info = get_mirror_statuses() urls = status_info['urls'] good_urls = [] bad_urls = [] for url in urls: # split them into good and bad lists based on delay if not url.delay or url.delay > bad_timedelta: bad_urls.append(url) else: good_urls.append(url) context = status_info.copy() context.update({ 'good_urls': good_urls, 'bad_urls': bad_urls, 'error_logs': get_mirror_errors(), }) return direct_to_template(request, 'mirrors/status.html', context) class MirrorStatusJSONEncoder(DjangoJSONEncoder): '''Base JSONEncoder extended to handle datetime.timedelta and MirrorUrl serialization. The base class takes care of datetime.datetime types.''' url_attributes = ['url', 'protocol', 'last_sync', 'completion_pct', 'delay', 'duration_avg', 'duration_stddev', 'score'] def default(self, obj): if isinstance(obj, datetime.timedelta): # always returned as integer seconds return obj.days * 24 * 3600 + obj.seconds if hasattr(obj, '__iter__'): # mainly for queryset serialization return list(obj) if isinstance(obj, MirrorUrl): data = dict((attr, getattr(obj, attr)) for attr in self.url_attributes) # separate because it isn't on the URL directly data['country'] = obj.real_country return data if isinstance(obj, MirrorProtocol): return unicode(obj) return super(MirrorStatusJSONEncoder, self).default(obj) def status_json(request): status_info = get_mirror_statuses() data = status_info.copy() data['version'] = 1 to_json = simplejson.dumps(data, ensure_ascii=False, cls=MirrorStatusJSONEncoder) response = HttpResponse(to_json, mimetype='application/json') return response # vim: set ts=4 sw=4 et: