# coding:utf-8 from __future__ import absolute_import, unicode_literals import csv import json import uuid import codecs import chardet from io import StringIO from django.conf import settings from django.utils.translation import ugettext_lazy as _ from django.views.generic import TemplateView, ListView, View from django.views.generic.edit import CreateView, DeleteView, FormView, UpdateView from django.urls import reverse_lazy from django.views.generic.detail import DetailView, SingleObjectMixin from django.http import HttpResponse, JsonResponse, HttpResponseRedirect from django.views.decorators.csrf import csrf_protect, csrf_exempt from django.utils.decorators import method_decorator from django.core.cache import cache from django.utils import timezone from django.contrib.auth.mixins import LoginRequiredMixin from django.shortcuts import get_object_or_404, redirect, reverse from common.mixins import JSONResponseMixin from common.utils import get_object_or_none from .. import forms from ..models import Asset, AssetGroup, AdminUser, Cluster, SystemUser from ..hands import AdminUserRequiredMixin from ..tasks import update_assets_hardware_info __all__ = [ 'AssetListView', 'AssetCreateView', 'AssetUpdateView', 'UserAssetListView', 'AssetBulkUpdateView', 'AssetDetailView', 'AssetModalListView', 'AssetDeleteView', 'AssetExportView', 'BulkImportAssetView', ] class AssetListView(AdminUserRequiredMixin, TemplateView): template_name = 'assets/asset_list.html' def get_context_data(self, **kwargs): context = { 'app': 'Assets', 'action': 'Asset list', 'groups': AssetGroup.objects.all(), 'system_users': SystemUser.objects.all(), # 'form': forms.AssetBulkUpdateForm(), } kwargs.update(context) return super(AssetListView, self).get_context_data(**kwargs) class UserAssetListView(LoginRequiredMixin, TemplateView): template_name = 'assets/user_asset_list.html' def get_context_data(self, **kwargs): context = { 'app': 'Assets', 'action': 'Asset list', 'system_users': SystemUser.objects.all(), } kwargs.update(context) return super(UserAssetListView, self).get_context_data(**kwargs) class AssetCreateView(AdminUserRequiredMixin, CreateView): model = Asset form_class = forms.AssetCreateForm template_name = 'assets/asset_create.html' success_url = reverse_lazy('assets:asset-list') def form_valid(self, form): self.asset = asset = form.save() asset.created_by = self.request.user.username or 'Admin' asset.date_created = timezone.now() asset.save() return super(AssetCreateView, self).form_valid(form) def get_context_data(self, **kwargs): context = { 'app': 'Assets', 'action': 'Create asset', } kwargs.update(context) return super(AssetCreateView, self).get_context_data(**kwargs) def get_success_url(self): update_assets_hardware_info.delay([self.asset._to_secret_json()]) return super(AssetCreateView, self).get_success_url() class AssetModalListView(AdminUserRequiredMixin, ListView): paginate_by = settings.CONFIG.DISPLAY_PER_PAGE model = Asset context_object_name = 'asset_modal_list' template_name = 'assets/asset_modal_list.html' def get_context_data(self, **kwargs): assets = Asset.objects.all() assets_id = self.request.GET.get('assets_id', '') assets_id_list = [i for i in assets_id.split(',') if i.isdigit()] context = { 'all_assets': assets_id_list, 'assets': assets } kwargs.update(context) return super(AssetModalListView, self).get_context_data(**kwargs) class AssetBulkUpdateView(AdminUserRequiredMixin, ListView): model = Asset form_class = forms.AssetBulkUpdateForm template_name = 'assets/asset_bulk_update.html' success_url = reverse_lazy('assets:asset-list') def get(self, request, *args, **kwargs): assets_id = self.request.GET.get('assets_id', '') self.assets_id_list = [int(i) for i in assets_id.split(',') if i.isdigit()] if kwargs.get('form'): self.form = kwargs['form'] elif assets_id: self.form = self.form_class( initial={'assets': self.assets_id_list} ) else: self.form = self.form_class() return super(AssetBulkUpdateView, self).get(request, *args, **kwargs) def post(self, request, *args, **kwargs): form = self.form_class(request.POST) if form.is_valid(): form.save() return redirect(self.success_url) else: return self.get(request, form=form, *args, **kwargs) def get_context_data(self, **kwargs): # assets_list = Asset.objects.filter(id__in=self.assets_id_list) context = { 'app': 'Assets', 'action': 'Bulk update asset', 'form': self.form, 'assets_selected': self.assets_id_list, 'assets': Asset.objects.all(), } kwargs.update(context) return super(AssetBulkUpdateView, self).get_context_data(**kwargs) class AssetUpdateView(AdminUserRequiredMixin, UpdateView): model = Asset form_class = forms.AssetUpdateForm template_name = 'assets/asset_update.html' success_url = reverse_lazy('assets:asset-list') def get_context_data(self, **kwargs): context = { 'app': 'Assets', 'action': 'Update asset', } kwargs.update(context) return super(AssetUpdateView, self).get_context_data(**kwargs) def form_invalid(self, form): print(form.errors) return super(AssetUpdateView, self).form_invalid(form) class AssetDeleteView(AdminUserRequiredMixin, DeleteView): model = Asset template_name = 'assets/delete_confirm.html' success_url = reverse_lazy('assets:asset-list') class AssetDetailView(DetailView): model = Asset context_object_name = 'asset' template_name = 'assets/asset_detail.html' def get_context_data(self, **kwargs): asset_groups = self.object.groups.all() context = { 'app': 'Assets', 'action': 'Asset detail', 'asset_groups_remain': [asset_group for asset_group in AssetGroup.objects.all() if asset_group not in asset_groups], 'asset_groups': asset_groups, 'system_users_all': SystemUser.objects.all(), } kwargs.update(context) return super(AssetDetailView, self).get_context_data(**kwargs) @method_decorator(csrf_exempt, name='dispatch') class AssetExportView(View): def get(self, request): spm = request.GET.get('spm', '') assets_id_default = [Asset.objects.first().id] if Asset.objects.first() else [1] assets_id = cache.get(spm, assets_id_default) fields = [ field for field in Asset._meta.fields if field.name not in [ 'date_created' ] ] filename = 'assets-{}.csv'.format( timezone.localtime(timezone.now()).strftime('%Y-%m-%d_%H-%M-%S')) response = HttpResponse(content_type='text/csv') response['Content-Disposition'] = 'attachment; filename="%s"' % filename response.write(codecs.BOM_UTF8) assets = Asset.objects.filter(id__in=assets_id) writer = csv.writer(response, dialect='excel', quoting=csv.QUOTE_MINIMAL) header = [field.verbose_name for field in fields] header.append(_('Asset groups')) writer.writerow(header) for asset in assets: groups = ','.join([group.name for group in asset.groups.all()]) data = [getattr(asset, field.name) for field in fields] data.append(groups) writer.writerow(data) return response def post(self, request, *args, **kwargs): try: assets_id = json.loads(request.body).get('assets_id', []) except ValueError: return HttpResponse('Json object not valid', status=400) spm = uuid.uuid4().hex cache.set(spm, assets_id, 300) url = reverse_lazy('assets:asset-export') + '?spm=%s' % spm return JsonResponse({'redirect': url}) class BulkImportAssetView(AdminUserRequiredMixin, JSONResponseMixin, FormView): form_class = forms.FileForm def form_valid(self, form): f = form.cleaned_data['file'] det_result = chardet.detect(f.read()) f.seek(0) # reset file seek index file_data = f.read().decode(det_result['encoding']).strip(codecs.BOM_UTF8.decode()) csv_file = StringIO(file_data) reader = csv.reader(csv_file) csv_data = [row for row in reader] fields = [ field for field in Asset._meta.fields if field.name not in [ 'date_created' ] ] header_ = csv_data[0] mapping_reverse = {field.verbose_name: field.name for field in fields} mapping_reverse[_('Asset groups')] = 'groups' attr = [mapping_reverse.get(n, None) for n in header_] if None in attr: data = {'valid': False, 'msg': 'Must be same format as ' 'template or export file'} return self.render_json_response(data) created, updated, failed = [], [], [] assets = [] for row in csv_data[1:]: if set(row) == {''}: continue asset_dict = dict(zip(attr, row)) id_ = asset_dict.pop('id', 0) try: id_ = int(id_) except ValueError: id_ = 0 asset = get_object_or_none(Asset, id=id_) for k, v in asset_dict.items(): if k == 'cluster': v = get_object_or_none(Cluster, name=v) elif k == 'is_active': v = bool(v) elif k == 'admin_user': v = get_object_or_none(AdminUser, name=v) elif k in ['port', 'cabinet_pos', 'cpu_count', 'cpu_cores']: try: v = int(v) except ValueError: v = 0 elif k == 'groups': groups_name = v.split(',') v = AssetGroup.objects.filter(name__in=groups_name) else: continue asset_dict[k] = v if not asset: try: groups = asset_dict.pop('groups') if len(Asset.objects.filter(hostname=asset_dict.get('hostname'))): raise Exception(_('already exists')) asset = Asset.objects.create(**asset_dict) asset.groups.set(groups) created.append(asset_dict['hostname']) assets.append(asset) except Exception as e: failed.append('%s: %s' % (asset_dict['hostname'], str(e))) else: for k, v in asset_dict.items(): if k == 'groups': asset.groups.set(v) continue if v: setattr(asset, k, v) try: asset.save() updated.append(asset_dict['hostname']) except Exception as e: failed.append('%s: %s' % (asset_dict['hostname'], str(e))) if assets: update_assets_hardware_info.delay([asset._to_secret_json() for asset in assets]) data = { 'created': created, 'created_info': 'Created {}'.format(len(created)), 'updated': updated, 'updated_info': 'Updated {}'.format(len(updated)), 'failed': failed, 'failed_info': 'Failed {}'.format(len(failed)), 'valid': True, 'msg': 'Created: {}. Updated: {}, Error: {}'.format( len(created), len(updated), len(failed)) } return self.render_json_response(data)