Introduce complete refactoring.

This commit is contained in:
Sebastian Lenzlinger
2024-06-18 03:12:28 +02:00
parent b345474a89
commit 01954bd5a6
56 changed files with 754 additions and 206 deletions

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import json
import uuid
from datetime import datetime
from pathlib import Path
class CaptureMetadata:
def __init__(self, device_id, capture_dir):
self.device_id = device_id
self.capture_id = str(uuid.uuid4())
self.capture_date = datetime.now().isoformat()
self.capture_dir = Path(capture_dir)
self.capture_file = ""
self.start_time = ""
self.stop_time = ""
self.tcpdump_command = ""
self.interface = ""
self.device_ip_address = ""
def build_capture_file_name(self):
self.capture_file = f"{self.device_id}_{self.capture_id}.pcap"
def to_dict(self):
return self.__dict__
def save_to_file(self, file_path=None):
file_path = file_path or self.capture_dir / 'metadata.json'
with open(file_path, 'w') as f:
json.dump(self.to_dict(), f, indent=4)

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import json
import uuid
from datetime import datetime
from pathlib import Path
from typing import Optional
from iottb.definitions import ReturnCodes, CAPTURE_METADATA_FILE
from iottb.models.device_metadata_model import DeviceMetadata
import logging
logger = logging.getLogger('iottbLogger.capture_metadata_model')
logger.setLevel(logging.DEBUG)
class CaptureMetadata:
# Required Fields
device_metadata: DeviceMetadata
device_id: str
capture_dir: Path
capture_file: str
# Statistics
start_time: str
stop_time: str
# tcpdump
packet_count: Optional[int]
pcap_filter: str = ''
tcpdump_command: str = ''
interface: str = ''
# Optional Fields
device_ip_address: str = 'No IP Address set'
device_mac_address: Optional[str] = None
app: Optional[str] = None
app_version: Optional[str] = None
firmware_version: Optional[str] = None
def __init__(self, device_metadata: DeviceMetadata, capture_dir: Path):
logger.info(f'Creating CaptureMetadata model from DeviceMetadata: {device_metadata}')
self.device_metadata = device_metadata
self.capture_id = str(uuid.uuid4())
self.capture_date = datetime.now().strftime('%d-%m-%YT%H:%M:%S').lower()
self.capture_dir = capture_dir
assert capture_dir.is_dir(), f'Capture directory {capture_dir} does not exist'
def build_capture_file_name(self):
logger.info(f'Building capture file name')
if self.app is None:
logger.debug(f'No app specified')
prefix = "iphone-14" #self.device_metadata.device_short_name
else:
logger.debug(f'App specified: {self.app}')
assert str(self.app).strip() not in {'', ' '}, f'app is not a valid name: {self.app}'
prefix = self.app.lower().replace(' ', '_')
# assert self.capture_dir is not None, f'{self.capture_dir} does not exist'
filename = f'{prefix}_{str(self.capture_id)}.pcap'
logger.debug(f'Capture file name: {filename}')
self.capture_file = filename
def save_capture_metadata_to_json(self, file_path: Path = Path(CAPTURE_METADATA_FILE)):
assert self.capture_dir.is_dir(), f'capture_dir is not a directory: {self.capture_dir}'
if file_path.is_file():
print(f'File {file_path} already exists, update instead.')
return ReturnCodes.FILE_ALREADY_EXISTS
metadata = self.to_json(indent=2)
with file_path.open('w') as file:
json.dump(metadata, file)
return ReturnCodes.SUCCESS
def to_json(self, indent=2):
# TODO: Where to validate data?
logger.info(f'Converting CaptureMetadata to JSON')
data = {}
# List of fields from CaptureData class, if fields[key]==True, then it is a required field
fields = {
'capture_id': True, #
'device_id': True,
'capture_dir': True,
'capture_file': False,
'capture_date': False,
'start_time': True,
'stop_time': True,
'packet_count': False,
'pcap_filter': False,
'tcpdump_command': False,
'interface': False,
'device_ip_address': False,
'device_mac_address': False,
'app': False,
'app_version': False,
'firmware_version': False
}
for field, is_mandatory in fields.items():
value = getattr(self, field, None)
if value not in [None, ''] or is_mandatory:
if value in [None, ''] and is_mandatory:
raise ValueError(f'Field {field} is required and cannot be empty.')
data[field] = str(value) if not isinstance(value, str) else value
logger.debug(f'Capture metadata: {data}')
return json.dumps(data, indent=indent)

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import json
import uuid
from datetime import datetime
from pathlib import Path
class DeviceMetadata:
def __init__(self, device_name, device_root_path):
self.device_name = device_name
self.device_short_name = device_name.lower().replace(' ', '_')
self.device_id = str(uuid.uuid4())
self.date_created = datetime.now().isoformat()
self.device_root_path = Path(device_root_path)
def to_dict(self):
return self.__dict__
def save_to_file(self):
file_path = self.device_root_path / 'device_metadata.json'
with open(file_path, 'w') as f:
json.dump(self.to_dict(), f, indent=4)
@classmethod
def load_from_file(cls, file_path):
with open(file_path, 'r') as f:
data = json.load(f)
return cls(**data)

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import json
import uuid
from datetime import datetime
from pathlib import Path
from typing import Optional, List
# iottb modules
from iottb.definitions import ReturnCodes, DEVICE_METADATA_FILE
import logging
logger = logging.getLogger('iottbLogger.device_metadata_model')
logger.setLevel(logging.DEBUG)
# 3rd party libs
IMMUTABLE_FIELDS = {'device_name', 'device_short_name', 'device_id', 'date_created'}
class DeviceMetadata:
# Required fields
device_name: str
device_short_name: str
device_id: str
date_created: str
device_root_path: Path
# Optional Fields
aliases: Optional[List[str]] = None
device_type: Optional[str] = None
device_serial_number: Optional[str] = None
device_firmware_version: Optional[str] = None
date_updated: Optional[str] = None
capture_files: Optional[List[str]] = []
def __init__(self, device_name: str, device_root_path: Path):
self.device_name = device_name
self.device_short_name = device_name.lower().replace(' ', '_')
self.device_id = str(uuid.uuid4())
self.date_created = datetime.now().strftime('%d-%m-%YT%H:%M:%S').lower()
self.device_root_path = device_root_path
if not self.device_root_path or not self.device_root_path.is_dir():
logger.error(f'Invalid device root path: {device_root_path}')
raise ValueError(f'Invalid device root path: {device_root_path}')
logger.debug(f'Device name: {device_name}')
logger.debug(f'Device short_name: {self.device_short_name}')
logger.debug(f'Device root dir: {device_root_path}')
logger.info(f'Initialized DeviceMetadata model: {device_name}')
@classmethod
def load_from_json(cls, device_file_path: Path):
logger.info(f'Loading DeviceMetadata from JSON file: {device_file_path}')
assert device_file_path.is_file(), f'{device_file_path} is not a file'
assert device_file_path.name == DEVICE_METADATA_FILE, f'{device_file_path} is not a {DEVICE_METADATA_FILE}'
device_meta_filename = device_file_path
with device_meta_filename.open('r') as file:
metadata_json = json.load(file)
metadata_model_obj = cls.from_json(metadata_json)
return metadata_model_obj
def save_to_json(self, file_path: Path):
logger.info(f'Saving DeviceMetadata to JSON file: {file_path}')
if file_path.is_file():
print(f'File {file_path} already exists, update instead.')
return ReturnCodes.FILE_ALREADY_EXISTS
metadata = self.to_json(indent=2)
with file_path.open('w') as file:
json.dump(metadata, file)
return ReturnCodes.SUCCESS
@classmethod
def from_json(cls, metadata_json):
if isinstance(metadata_json, dict):
return DeviceMetadata(**metadata_json)
def to_json(self, indent=2):
# TODO: atm almost exact copy as in CaptureMetadata
data = {}
fields = {
'device_name': True,
'device_short_name': True,
'device_id': True,
'date_created': True,
'device_root_path': True,
'aliases': False,
'device_type': False,
'device_serial_number': False,
'device_firmware_version': False,
'date_updated': False,
'capture_files': False,
}
for field, is_mandatory in fields.items():
value = getattr(self, field, None)
if value not in [None, ''] or is_mandatory:
if value in [None, ''] and is_mandatory:
logger.debug(f'Mandatory field {field}: {value}')
raise ValueError(f'Field {field} is required and cannot be empty.')
data[field] = str(value) if not isinstance(value, str) else value
logger.debug(f'Device metadata: {data}')
return json.dumps(data, indent=indent)
def dir_contains_device_metadata(dir_path: Path):
if not dir_path.is_dir():
return False
else:
meta_file_path = dir_path / DEVICE_METADATA_FILE
print(f'Device metadata file path {str(meta_file_path)}')
if not meta_file_path.is_file():
return False
else:
return True