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devicehub-teal/ereuse_devicehub/inventory/forms.py

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import json
import teal
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from flask_wtf import FlaskForm
from wtforms import StringField, validators, MultipleFileField
from flask import g, request, app
from sqlalchemy.util import OrderedSet
from psycopg2.errors import UniqueViolation
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from ereuse_devicehub.db import db
from ereuse_devicehub.resources.device.models import Device, Computer
from ereuse_devicehub.resources.action.models import RateComputer, Snapshot
from ereuse_devicehub.resources.action.schemas import Snapshot as SnapshotSchema
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from ereuse_devicehub.resources.lot.models import Lot
from ereuse_devicehub.resources.enums import SnapshotSoftware, Severity
from ereuse_devicehub.resources.user.exceptions import InsufficientPermission
from ereuse_devicehub.resources.action.rate.v1_0 import CannotRate
from ereuse_devicehub.resources.device.sync import Sync
from ereuse_devicehub.resources.action.views.snapshot import save_json, move_json
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class LotDeviceForm(FlaskForm):
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lot = StringField(u'Lot', [validators.UUID()])
devices = StringField(u'Devices', [validators.length(min=1)])
def validate(self, extra_validators=None):
is_valid = super().validate(extra_validators)
if not is_valid:
return False
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self._lot = Lot.query.filter(Lot.id == self.lot.data).filter(
Lot.owner_id == g.user.id).one()
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devices = set(self.devices.data.split(","))
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self._devices = set(Device.query.filter(Device.id.in_(devices)).filter(
Device.owner_id == g.user.id).all())
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if not self._devices:
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return False
return True
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def save(self):
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self._lot.devices.update(self._devices)
db.session.add(self._lot)
db.session.commit()
def remove(self):
self._lot.devices.difference_update(self._devices)
db.session.add(self._lot)
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db.session.commit()
class LotForm(FlaskForm):
name = StringField(u'Name', [validators.length(min=1)])
def __init__(self, *args, **kwargs):
self.id = kwargs.pop('id', None)
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self.instance = None
if self.id:
self.instance = Lot.query.filter(Lot.id == self.id).filter(
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Lot.owner_id == g.user.id).one()
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super().__init__(*args, **kwargs)
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if self.instance and not self.name.data:
self.name.data = self.instance.name
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def save(self):
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if not self.id:
self.instance = Lot(name=self.name.data)
self.populate_obj(self.instance)
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if not self.id:
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self.id = self.instance.id
db.session.add(self.instance)
db.session.commit()
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return self.id
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db.session.commit()
return self.id
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def remove(self):
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if self.instance and not self.instance.devices:
self.instance.delete()
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db.session.commit()
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return self.instance
class UploadSnapshotForm(FlaskForm):
snapshot = MultipleFileField(u'Select a Snapshot File', [validators.DataRequired()])
def validate(self, extra_validators=None):
is_valid = super().validate(extra_validators)
if not is_valid:
return False
data = request.files.getlist(self.snapshot.name)
if not data:
return False
self.snapshots = []
self.result = {}
for d in data:
filename = d.filename
self.result[filename] = 'Not processed'
d = d.stream.read()
if not d:
self.result[filename] = 'Error'
continue
self.snapshots.append((filename, json.loads(d)))
if not self.snapshots:
return False
return True
def save(self):
if any([x == 'Error' for x in self.result.values()]):
return
# result = []
self.sync = Sync()
schema = SnapshotSchema()
# self.tmp_snapshots = app.config['TMP_SNAPSHOTS']
# TODO @cayop get correct var config
self.tmp_snapshots = '/tmp/'
for filename, snapshot_json in self.snapshots:
path_snapshot = save_json(snapshot_json, self.tmp_snapshots, g.user.email)
snapshot_json.pop('debug', None)
snapshot_json = schema.load(snapshot_json)
try:
response = self.build(snapshot_json)
except teal.db.DBError as error:
self.result[filename] = 'Error: {0}'.format(error.code)
break
if hasattr(response, 'type'):
self.result[filename] = 'Ok'
else:
self.result[filename] = 'Error'
move_json(self.tmp_snapshots, path_snapshot, g.user.email)
def build(self, snapshot_json):
# this is a copy adaptated from ereuse_devicehub.resources.action.views.snapshot
device = snapshot_json.pop('device') # type: Computer
components = None
if snapshot_json['software'] == (SnapshotSoftware.Workbench or SnapshotSoftware.WorkbenchAndroid):
components = snapshot_json.pop('components', None) # type: List[Component]
if isinstance(device, Computer) and device.hid:
device.add_mac_to_hid(components_snap=components)
snapshot = Snapshot(**snapshot_json)
# Remove new actions from devices so they don't interfere with sync
actions_device = set(e for e in device.actions_one)
device.actions_one.clear()
if components:
actions_components = tuple(set(e for e in c.actions_one) for c in components)
for component in components:
component.actions_one.clear()
assert not device.actions_one
assert all(not c.actions_one for c in components) if components else True
db_device, remove_actions = self.sync.run(device, components)
del device # Do not use device anymore
snapshot.device = db_device
snapshot.actions |= remove_actions | actions_device # Set actions to snapshot
# commit will change the order of the components by what
# the DB wants. Let's get a copy of the list so we preserve order
ordered_components = OrderedSet(x for x in snapshot.components)
# Add the new actions to the db-existing devices and components
db_device.actions_one |= actions_device
if components:
for component, actions in zip(ordered_components, actions_components):
component.actions_one |= actions
snapshot.actions |= actions
if snapshot.software == SnapshotSoftware.Workbench:
# Check ownership of (non-component) device to from current.user
if db_device.owner_id != g.user.id:
raise InsufficientPermission()
# Compute ratings
try:
rate_computer, price = RateComputer.compute(db_device)
except CannotRate:
pass
else:
snapshot.actions.add(rate_computer)
if price:
snapshot.actions.add(price)
elif snapshot.software == SnapshotSoftware.WorkbenchAndroid:
pass # TODO try except to compute RateMobile
# Check if HID is null and add Severity:Warning to Snapshot
if snapshot.device.hid is None:
snapshot.severity = Severity.Warning
db.session.add(snapshot)
db.session.commit()
return snapshot
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class NewActionForm(FlaskForm):
name = StringField(u'Name')
date = StringField(u'Date')
severity = StringField(u'Severity')
description = StringField(u'Description')
def save(self):
pass