import csv import datetime import enum import uuid from collections import OrderedDict from io import StringIO from typing import Callable, Iterable, Tuple from decouple import config import boltons import flask import flask_weasyprint import teal.marshmallow from boltons import urlutils from flask import make_response, g, request from flask import current_app as app from flask.json import jsonify from teal.cache import cache from teal.resource import Resource, View from ereuse_devicehub.db import db from ereuse_devicehub.resources.action import models as evs from ereuse_devicehub.resources.device import models as devs from ereuse_devicehub.resources.deliverynote.models import Deliverynote from ereuse_devicehub.resources.device.views import DeviceView from ereuse_devicehub.resources.documents.device_row import (DeviceRow, StockRow, ActionRow, InternalStatsRow) from ereuse_devicehub.resources.lot import LotView from ereuse_devicehub.resources.lot.models import Lot from ereuse_devicehub.resources.hash_reports import insert_hash, ReportHash, verify_hash class Format(enum.Enum): HTML = 'HTML' PDF = 'PDF' class DocumentView(DeviceView): class FindArgs(DeviceView.FindArgs): format = teal.marshmallow.EnumField(Format, missing=None) def get(self, id): """Get a collection of resources or a specific one. --- parameters: - name: id in: path description: The identifier of the resource. type: string required: false responses: 200: description: Return the collection or the specific one. """ args = self.QUERY_PARSER.parse(self.find_args, flask.request, locations=('querystring',)) if id: # todo we assume we can pass both device id and action id # for certificates... how is it going to end up being? try: id = uuid.UUID(id) except ValueError: try: id = int(id) except ValueError: raise teal.marshmallow.ValidationError('Document must be an ID or UUID.') else: query = devs.Device.query.filter_by(id=id) else: query = evs.Action.query.filter_by(id=id) else: flask.current_app.auth.requires_auth(lambda: None)() # todo not nice query = self.query(args) type = urlutils.URL(flask.request.url).path_parts[-2] if type == 'erasures': template = self.erasure(query) if args.get('format') == Format.PDF: res = flask_weasyprint.render_pdf( flask_weasyprint.HTML(string=template), download_filename='{}.pdf'.format(type) ) insert_hash(res.data) else: res = flask.make_response(template) return res @staticmethod def erasure(query: db.Query): def erasures(): for model in query: if isinstance(model, devs.Computer): for erasure in model.privacy: yield erasure elif isinstance(model, devs.DataStorage): erasure = model.privacy if erasure: yield erasure else: assert isinstance(model, evs.EraseBasic) yield model url_pdf = boltons.urlutils.URL(flask.request.url) url_pdf.query_params['format'] = 'PDF' params = { 'title': 'Erasure Certificate', 'erasures': tuple(erasures()), 'url_pdf': url_pdf.to_text() } return flask.render_template('documents/erasure.html', **params) class DevicesDocumentView(DeviceView): @cache(datetime.timedelta(minutes=1)) def find(self, args: dict): query = (x for x in self.query(args) if x.owner_id == g.user.id) return self.generate_post_csv(query) def generate_post_csv(self, query): """Get device query and put information in csv format.""" data = StringIO() cw = csv.writer(data, delimiter=';', lineterminator="\n", quotechar='"') first = True document_ids = self.get_documents_id() for device in query: d = DeviceRow(device, document_ids) if first: cw.writerow(d.keys()) first = False cw.writerow(d.values()) bfile = data.getvalue().encode('utf-8') output = make_response(bfile) insert_hash(bfile) output.headers['Content-Disposition'] = 'attachment; filename=export.csv' output.headers['Content-type'] = 'text/csv' return output def get_documents_id(self): # documentIds = {dev_id: document_id, ...} deliverys = Deliverynote.query.all() documentIds = {x.id: d.document_id for d in deliverys for x in d.lot.devices} return documentIds class ActionsDocumentView(DeviceView): @cache(datetime.timedelta(minutes=1)) def find(self, args: dict): query = (x for x in self.query(args) if x.owner_id == g.user.id) return self.generate_post_csv(query) def generate_post_csv(self, query): """Get device query and put information in csv format.""" data = StringIO() cw = csv.writer(data, delimiter=';', lineterminator="\n", quotechar='"') first = True for device in query: for allocate in device.get_metrics(): d = ActionRow(allocate) if first: cw.writerow(d.keys()) first = False cw.writerow(d.values()) bfile = data.getvalue().encode('utf-8') output = make_response(bfile) insert_hash(bfile) output.headers['Content-Disposition'] = 'attachment; filename=actions_export.csv' output.headers['Content-type'] = 'text/csv' return output class LotsDocumentView(LotView): def find(self, args: dict): query = (x for x in self.query(args) if x.owner_id == g.user.id) return self.generate_lots_csv(query) def generate_lots_csv(self, query): """Get lot query and put information in csv format.""" data = StringIO() cw = csv.writer(data) first = True for lot in query: l = LotRow(lot) if first: cw.writerow(l.keys()) first = False cw.writerow(l.values()) bfile = data.getvalue().encode('utf-8') output = make_response(bfile) insert_hash(bfile) output.headers['Content-Disposition'] = 'attachment; filename=lots-info.csv' output.headers['Content-type'] = 'text/csv' return output class LotRow(OrderedDict): def __init__(self, lot: Lot) -> None: super().__init__() self.lot = lot # General information about lot self['Id'] = lot.id.hex self['Name'] = lot.name self['Registered in'] = format(lot.created, '%c') try: self['Description'] = lot.description except: self['Description'] = '' class StockDocumentView(DeviceView): # @cache(datetime.timedelta(minutes=1)) def find(self, args: dict): query = (x for x in self.query(args) if x.owner_id == g.user.id) return self.generate_post_csv(query) def generate_post_csv(self, query): """Get device query and put information in csv format.""" data = StringIO() cw = csv.writer(data, delimiter=';', lineterminator="\n", quotechar='"') first = True for device in query: d = StockRow(device) if first: cw.writerow(d.keys()) first = False cw.writerow(d.values()) bfile = data.getvalue().encode('utf-8') output = make_response(bfile) insert_hash(bfile) output.headers['Content-Disposition'] = 'attachment; filename=devices-stock.csv' output.headers['Content-type'] = 'text/csv' return output class CheckView(View): model = ReportHash def get(self): qry = dict(request.values) hash3 = qry.get('hash') result = False if hash3 and ReportHash.query.filter_by(hash3=hash3).count(): result = True return jsonify(result) class StampsView(View): """ This view render one public ans static page for see the links for to do the check of one csv file """ def get_url_path(self): url = urlutils.URL(request.url) url.normalize() url.path_parts = url.path_parts[:-2] + ['check', ''] return url.to_text() def get(self): result = ('', '') return flask.render_template('documents/stamp.html', rq_url=self.get_url_path(), result=result) def post(self): result = ('', '') if 'docUpload' in request.files: file_check = request.files['docUpload'] bad = 'There are no coincidences. The attached file data does not come \ from our backend or it has been subsequently modified.' ok = '100% coincidence. The attached file contains data 100% existing in \ to our backend' result = ('Bad', bad) if file_check.mimetype in ['text/csv', 'application/pdf']: if verify_hash(file_check): result = ('Ok', ok) return flask.render_template('documents/stamp.html', rq_url=self.get_url_path(), result=result) class InternalStatsView(DeviceView): @cache(datetime.timedelta(minutes=1)) def find(self, args: dict): if not g.user.email == app.config['EMAIL_ADMIN']: return jsonify('') query = evs.Action.query.filter( evs.Action.type.in_(('Snapshot', 'Live', 'Allocate', 'Deallocate'))) return self.generate_post_csv(query) def generate_post_csv(self, query): d = {} for ac in query: create = '{}-{}'.format(ac.created.year, ac.created.month) user = ac.author.email if not user in d: d[user] = {} if not create in d[user]: d[user][create] = [] d[user][create].append(ac) data = StringIO() cw = csv.writer(data, delimiter=';', lineterminator="\n", quotechar='"') cw.writerow(InternalStatsRow('', "2000-1", []).keys()) for user, createds in d.items(): for create, actions in createds.items(): cw.writerow(InternalStatsRow(user, create, actions).values()) bfile = data.getvalue().encode('utf-8') output = make_response(bfile) insert_hash(bfile) output.headers['Content-Disposition'] = 'attachment; filename=internal-stats.csv' output.headers['Content-type'] = 'text/csv' return output class DocumentDef(Resource): __type__ = 'Document' SCHEMA = None VIEW = None # We do not want to create default / documents endpoint AUTH = False def __init__(self, app, import_name=__name__, static_folder='static', static_url_path=None, template_folder='templates', url_prefix=None, subdomain=None, url_defaults=None, root_path=None, cli_commands: Iterable[Tuple[Callable, str or None]] = tuple()): super().__init__(app, import_name, static_folder, static_url_path, template_folder, url_prefix, subdomain, url_defaults, root_path, cli_commands) d = {'id': None} get = {'GET'} view = DocumentView.as_view('main', definition=self, auth=app.auth) # TODO @cayop This two lines never pass if self.AUTH: view = app.auth.requires_auth(view) self.add_url_rule('/erasures/', defaults=d, view_func=view, methods=get) self.add_url_rule('/erasures/<{}:{}>'.format(self.ID_CONVERTER.value, self.ID_NAME), view_func=view, methods=get) devices_view = DevicesDocumentView.as_view('devicesDocumentView', definition=self, auth=app.auth) devices_view = app.auth.requires_auth(devices_view) stock_view = StockDocumentView.as_view('stockDocumentView', definition=self) stock_view = app.auth.requires_auth(stock_view) self.add_url_rule('/devices/', defaults=d, view_func=devices_view, methods=get) lots_view = LotsDocumentView.as_view('lotsDocumentView', definition=self) lots_view = app.auth.requires_auth(lots_view) self.add_url_rule('/lots/', defaults=d, view_func=lots_view, methods=get) stock_view = StockDocumentView.as_view('stockDocumentView', definition=self, auth=app.auth) stock_view = app.auth.requires_auth(stock_view) self.add_url_rule('/stock/', defaults=d, view_func=stock_view, methods=get) check_view = CheckView.as_view('CheckView', definition=self, auth=app.auth) self.add_url_rule('/check/', defaults={}, view_func=check_view, methods=get) stamps_view = StampsView.as_view('StampsView', definition=self, auth=app.auth) self.add_url_rule('/stamps/', defaults={}, view_func=stamps_view, methods={'GET', 'POST'}) internalstats_view = InternalStatsView.as_view( 'InternalStatsView', definition=self, auth=app.auth) internalstats_view = app.auth.requires_auth(internalstats_view) self.add_url_rule('/internalstats/', defaults=d, view_func=internalstats_view, methods=get) actions_view = ActionsDocumentView.as_view('ActionsDocumentView', definition=self, auth=app.auth) actions_view = app.auth.requires_auth(actions_view) self.add_url_rule('/actions/', defaults=d, view_func=actions_view, methods=get)