193 lines
6.7 KiB
Python
193 lines
6.7 KiB
Python
""" This is the view for Snapshots """
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import json
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import os
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import shutil
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from datetime import datetime
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from uuid import UUID
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from flask import current_app as app
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from flask import g
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from sqlalchemy.util import OrderedSet
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from ereuse_devicehub.db import db
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from ereuse_devicehub.resources.action.models import Snapshot
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from ereuse_devicehub.resources.device.models import Computer
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from ereuse_devicehub.resources.device.sync import Sync
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from ereuse_devicehub.resources.enums import Severity, SnapshotSoftware
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from ereuse_devicehub.resources.user.exceptions import InsufficientPermission
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def save_json(req_json, tmp_snapshots, user, live=False):
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"""
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This function allow save a snapshot in json format un a TMP_SNAPSHOTS directory
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The file need to be saved with one name format with the stamptime and uuid joins
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"""
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uuid = req_json.get('uuid', '')
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now = datetime.now()
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year = now.year
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month = now.month
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day = now.day
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hour = now.hour
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minutes = now.minute
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name_file = f"{year}-{month}-{day}-{hour}-{minutes}_{user}_{uuid}.json"
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path_dir_base = os.path.join(tmp_snapshots, user)
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if live:
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path_dir_base = tmp_snapshots
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path_errors = os.path.join(path_dir_base, 'errors')
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path_fixeds = os.path.join(path_dir_base, 'fixeds')
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path_name = os.path.join(path_errors, name_file)
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if not os.path.isdir(path_dir_base):
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os.system(f'mkdir -p {path_errors}')
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os.system(f'mkdir -p {path_fixeds}')
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with open(path_name, 'w') as snapshot_file:
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snapshot_file.write(json.dumps(req_json))
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return path_name
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def move_json(tmp_snapshots, path_name, user, live=False):
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"""
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This function move the json than it's correct
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"""
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path_dir_base = os.path.join(tmp_snapshots, user)
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if live:
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path_dir_base = tmp_snapshots
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if os.path.isfile(path_name):
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shutil.copy(path_name, path_dir_base)
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os.remove(path_name)
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class SnapshotMixin:
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sync = Sync()
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def build(self, snapshot_json=None): # noqa: C901
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if not snapshot_json:
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snapshot_json = self.snapshot_json
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device = snapshot_json.pop('device') # type: Computer
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components = None
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if snapshot_json['software'] == (
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SnapshotSoftware.Workbench or SnapshotSoftware.WorkbenchAndroid
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):
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components = snapshot_json.pop('components', None) # type: List[Component]
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if isinstance(device, Computer) and device.hid:
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device.add_mac_to_hid(components_snap=components)
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snapshot = Snapshot(**snapshot_json)
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# Remove new actions from devices so they don't interfere with sync
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actions_device = set(e for e in device.actions_one)
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device.actions_one.clear()
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if components:
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actions_components = tuple(
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set(e for e in c.actions_one) for c in components
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)
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for component in components:
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component.actions_one.clear()
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assert not device.actions_one
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assert all(not c.actions_one for c in components) if components else True
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db_device, remove_actions = self.sync.run(device, components)
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del device # Do not use device anymore
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snapshot.device = db_device
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snapshot.actions |= remove_actions | actions_device # Set actions to snapshot
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# commit will change the order of the components by what
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# the DB wants. Let's get a copy of the list so we preserve order
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ordered_components = OrderedSet(x for x in snapshot.components)
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# Add the new actions to the db-existing devices and components
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db_device.actions_one |= actions_device
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if components:
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for component, actions in zip(ordered_components, actions_components):
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component.actions_one |= actions
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snapshot.actions |= actions
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if snapshot.software == SnapshotSoftware.Workbench:
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# Check ownership of (non-component) device to from current.user
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if db_device.owner_id != g.user.id:
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raise InsufficientPermission()
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elif snapshot.software == SnapshotSoftware.WorkbenchAndroid:
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pass # TODO try except to compute RateMobile
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# Check if HID is null and add Severity:Warning to Snapshot
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if snapshot.device.hid is None:
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snapshot.severity = Severity.Warning
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return snapshot
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def get_uuid(self, debug):
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if not debug or not isinstance(debug, dict):
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self.errors(txt="There is not uuid")
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return
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hw_uuid = debug.get('lshw', {}).get('configuration', {}).get('uuid')
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if not hw_uuid:
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self.errors(txt="There is not uuid")
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return
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uuid = UUID(hw_uuid)
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return UUID(bytes_le=uuid.bytes)
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def errors(self, txt=None, severity=Severity.Error, snapshot=None, commit=False):
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if not txt:
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return
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from ereuse_devicehub.parser.models import SnapshotsLog
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error = SnapshotsLog(
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description=txt,
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snapshot_uuid=self.uuid,
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severity=severity,
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sid=self.sid,
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version=self.version,
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snapshot=snapshot,
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)
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error.save(commit=commit)
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class SnapshotView(SnapshotMixin):
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"""Performs a Snapshot.
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See `Snapshot` section in docs for more info.
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"""
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# Note that if we set the device / components into the snapshot
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# model object, when we flush them to the db we will flush
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# snapshot, and we want to wait to flush snapshot at the end
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def __init__(self, snapshot_json: dict, resource_def, schema):
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self.schema = schema
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self.resource_def = resource_def
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self.tmp_snapshots = app.config['TMP_SNAPSHOTS']
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self.path_snapshot = save_json(snapshot_json, self.tmp_snapshots, g.user.email)
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self.version = snapshot_json.get('version')
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self.uuid = snapshot_json.get('uuid')
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self.sid = None
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system_uuid = self.get_uuid(snapshot_json.pop('debug', None))
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if system_uuid:
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snapshot_json['device']['uuid'] = system_uuid
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try:
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self.snapshot_json = resource_def.schema.load(snapshot_json)
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snapshot = self.build()
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except Exception as err:
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txt = "{}".format(err)
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self.errors(txt=txt, commit=True)
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raise err
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db.session.add(snapshot)
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self.errors(txt="Ok", severity=Severity.Info, snapshot=snapshot, commit=True)
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db.session().final_flush()
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self.response = self.schema.jsonify(snapshot) # transform it back
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self.response.status_code = 201
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db.session.commit()
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move_json(self.tmp_snapshots, self.path_snapshot, g.user.email)
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def post(self):
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return self.response
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