210 lines
9 KiB
Python
210 lines
9 KiB
Python
from core.services.networking.httpx import httpx_client
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from core.services.networking.httpx import connect
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from core.services.networking.api_requests.ApiResponseModel import ApiResponse, ErrorType
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from core.models.Result import Result, ResultError
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from core.services.helpers.download_file import download_file_and_verify
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from core.controllers.ConfigurationController import ConfigurationController
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from core.models.Configuration import Configuration, ConnectionChoice
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from core.Errors import FileIntegrityError, UnsupportedApplicationVersionError, ApplicationAlreadyInstalledError
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from core.controllers.ApplicationController import ApplicationController
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from core.models.session.Application import Application
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# from core.models.session.ApplicationVersion import ApplicationVersion
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from core.models.orm_models.ApplicationVersion import ApplicationVersion
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from core.models.manage.wrapper import safe_db_operation, WrapperRollback
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from core.models.DatabaseOperation import DatabaseOperation, DBErrorType
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from core.models.orm_calls.application_version_calls import get_application_version, execute_get_all
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from core.observers.ApplicationVersionObserver import ApplicationVersionObserver
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from core.observers.ConnectionObserver import ConnectionObserver
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from core.services.WebServiceApiService import WebServiceApiService
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from core.errors.logger import logger
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# import httpx
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from io import BytesIO
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from typing import Optional
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import hashlib
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import shutil
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import tarfile
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from sqlalchemy.orm import Session
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from sqlalchemy import select
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import os
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class ApplicationVersionController:
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@staticmethod
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def get(application_code: str, version_number: str):
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return get_application_version(application_code, version_number)
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@staticmethod
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def get_all(application: Optional[Application] = None):
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database_object = execute_get_all()
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if database_object.valid:
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return database_object.data
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else:
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logger.error(f"[Application Version Controller] Got invalid SQL Query which could not be solved by the wrapper, with error message {database_object.message} and type {database_object.error_type}")
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return None
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@staticmethod
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def install(application_version: ApplicationVersion, reinstall: bool = False, application_version_observer: Optional[ApplicationVersionObserver] = None, connection_observer: Optional[ConnectionObserver] = None):
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if not application_version.is_supported:
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raise UnsupportedApplicationVersionError('The application version in question is not supported.')
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if reinstall:
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ApplicationVersionController.uninstall(application_version)
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if application_version.is_installed():
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raise ApplicationAlreadyInstalledError('The application in question is already installed.')
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# this used to go through "with_preferred_connection", but now re-uses the same HTTPx client as sync,
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ApplicationVersionController.__install(application_version, application_version_observer, connection_observer)
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# legacy:
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# from core.controllers.ConnectionController import ConnectionController
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# ConnectionController.with_preferred_connection(application_version, task=ApplicationVersionController.__install, application_version_observer=application_version_observer, connection_observer=connection_observer)
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@staticmethod
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def uninstall(application_version: ApplicationVersion):
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shutil.rmtree(application_version.get_installation_path(), ignore_errors=True)
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@staticmethod
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def _sync(proxies: Optional[dict] = None):
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applications = ApplicationController.get_all()
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application_versions = []
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for application_code in (application.code for application in applications):
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application_version_subset = WebServiceApiService.get_application_versions(application_code, proxies)
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for application_version in application_version_subset:
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application_versions.append(application_version)
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ApplicationVersion.truncate()
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ApplicationVersion.save_many(application_versions)
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@staticmethod
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def __install(application_version: ApplicationVersion, application_version_observer: Optional[ApplicationVersionObserver] = None, connection_observer: Optional[ConnectionObserver] = None):
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target_app_name = application_version.application_code.capitalize()
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target_app_version = application_version.version_number
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download_path = application_version.download_path
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target_file_hash = application_version.file_hash
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if application_version_observer is not None:
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application_version_observer.notify('downloading', f"Downloading {target_app_name} {target_app_version}. Connecting..")
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download_result = download_file_and_verify(
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target_app_name=target_app_name,
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download_path=download_path,
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target_file_hash=target_file_hash,
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application_version_observer=application_version_observer,
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target_app_version=target_app_version,
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connection_observer=connection_observer
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)
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################################################
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# IT WORKED - SAVE IT
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################################################
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if download_result.valid:
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response_buffer = download_result.data
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file_hash = download_result.message
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with tarfile.open(fileobj=response_buffer, mode = 'r:gz') as tar_file:
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tar_file.extractall(application_version.get_installation_path())
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with open(f'{application_version.get_installation_path()}/.sha3-512', 'w') as hash_file:
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hash_file.write(f'{file_hash}\n')
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################################################
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# FAILED
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################################################
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else:
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if download_result.error_type == ResultError.CONNECTION:
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raise ConnectionError(f'Could not connect, to download {target_app_name}.')
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elif download_result.error_type == ResultError.INVALID_INPUT:
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raise FileIntegrityError('Application version file integrity could not be verified.')
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else:
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return None
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# legacy:
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# @staticmethod
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# def __calculate_file_hash(file):
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# hasher = hashlib.sha3_512()
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# buffer = file.read(65536)
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# while len(buffer) > 0:
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# hasher.update(buffer)
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# buffer = file.read(65536)
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# file.seek(0)
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# return hasher.hexdigest()
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# def _get_httpx_client(target_app_name: str, connection_observer: Optional[ConnectionObserver]) -> httpx.Client:
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# connection_type = ConfigurationController.get_connection_enum()
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# did_it_work = connect.make_client(connection_type, connection_observer) # always gets boolean
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# if not did_it_work:
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# raise ConnectionError(f'Could not connect, to download {target_app_name}.')
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# else:
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# client = httpx_client.get_http_session()
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# logger.info(f"client type is {type(client)}")
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# return client
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# @staticmethod
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# def get_all(application: Optional[Application] = None):
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# return ApplicationVersion.all(application)
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# legacy:
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# application_version_observer.notify('downloading', application_version)
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################################################
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# SETUP HTTP CLIENT
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################################################
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# client = httpx_client.get_http_session()
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# logger.info(f"client type is {type(client)}")
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# if client is None:
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# client = _get_httpx_client(target_app_name=target_app_name, connection_observer=connection_observer)
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# ################################################
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# # GET THE DATA
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# ################################################
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# download_path = application_version.download_path
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# logger.info(f"download_path is {download_path}")
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# with client.stream('GET', download_path) as response:
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# logger.info("doing the stream...")
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# if response.status_code == 200:
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# response_size = int(response.headers.get('Content-Length', 0))
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# response_buffer = BytesIO()
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# block_size = 1024
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# bytes_written = 0
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# for data in response.iter_bytes(block_size):
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# bytes_written += len(data)
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# response_buffer.write(data)
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# progress = (bytes_written / response_size) * 100 if response_size > 0 else 0
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# if application_version_observer is not None:
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# application_version_observer.notify('download_progressing', f"Downloading {target_app_name} {progress:.2f}% v: {target_app_version}")
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# else:
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# raise ConnectionError('The application version could not be downloaded.')
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# application_version_observer.notify('downloaded', f"Downloaded {target_app_name} {target_app_version}")
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# response_buffer.seek(0)
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################################################
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# VERIFY THE HASH
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################################################
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# file_hash = ApplicationVersionController.__calculate_file_hash(response_buffer)
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# if file_hash != application_version.file_hash:
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# raise FileIntegrityError('Application version file integrity could not be verified.')
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