# Provides updates for Klipper and Moonraker
#
# Copyright (C) 2020 Eric Callahan <arksine.code@gmail.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
from __future__ import annotations
import asyncio
import os
import pathlib
import logging
import json
import sys
import shutil
import zipfile
import time
import tempfile
from tornado.httpclient import AsyncHTTPClient
from .base_deploy import BaseDeploy
from .app_deploy import AppDeploy
from .git_deploy import GitDeploy
from .zip_deploy import ZipDeploy
# Annotation imports
from typing import (
TYPE_CHECKING,
Any,
Optional,
Tuple,
Type,
Union,
Dict,
List,
cast
)
if TYPE_CHECKING:
from tornado.httpclient import HTTPResponse
from moonraker import Server
from confighelper import ConfigHelper
from websockets import WebRequest
from components.klippy_apis import KlippyAPI as APIComp
from components.shell_command import ShellCommandFactory as SCMDComp
from components.database import MoonrakerDatabase as DBComp
from components.database import NamespaceWrapper
from eventloop import FlexTimer
JsonType = Union[List[Any], Dict[str, Any]]
MOONRAKER_PATH = os.path.normpath(os.path.join(
os.path.dirname(__file__), "../../.."))
SUPPLEMENTAL_CFG_PATH = os.path.join(
os.path.dirname(__file__), "update_manager.conf")
KLIPPER_DEFAULT_PATH = os.path.expanduser("~/klipper")
KLIPPER_DEFAULT_EXEC = os.path.expanduser("~/klippy-env/bin/python")
# Check To see if Updates are necessary each hour
UPDATE_REFRESH_INTERVAL = 3600.
# Perform auto refresh no later than 4am
MAX_UPDATE_HOUR = 4
def get_deploy_class(app_path: str) -> Type:
if AppDeploy._is_git_repo(app_path):
return GitDeploy
else:
return ZipDeploy
class UpdateManager:
def __init__(self, config: ConfigHelper) -> None:
self.server = config.get_server()
self.event_loop = self.server.get_event_loop()
self.app_config = config.read_supplemental_config(
SUPPLEMENTAL_CFG_PATH)
auto_refresh_enabled = config.getboolean('enable_auto_refresh', False)
self.channel = config.get('channel', "dev")
if self.channel not in ["dev", "beta"]:
raise config.error(
f"Unsupported channel '{self.channel}' in section"
" [update_manager]")
self.cmd_helper = CommandHelper(config)
self.updaters: Dict[str, BaseDeploy] = {}
if config.getboolean('enable_system_updates', True):
self.updaters['system'] = PackageDeploy(config, self.cmd_helper)
if (
os.path.exists(KLIPPER_DEFAULT_PATH) and
os.path.exists(KLIPPER_DEFAULT_EXEC)
):
self.updaters['klipper'] = get_deploy_class(KLIPPER_DEFAULT_PATH)(
self.app_config[f"update_manager klipper"], self.cmd_helper,
{
'channel': self.channel,
'path': KLIPPER_DEFAULT_PATH,
'executable': KLIPPER_DEFAULT_EXEC
})
else:
self.updaters['klipper'] = BaseDeploy(
self.app_config[f"update_manager klipper"], self.cmd_helper)
self.updaters['moonraker'] = get_deploy_class(MOONRAKER_PATH)(
self.app_config[f"update_manager moonraker"], self.cmd_helper,
{
'channel': self.channel,
'path': MOONRAKER_PATH,
'executable': sys.executable
})
# TODO: The below check may be removed when invalid config options
# raise a config error.
if (
config.get("client_repo", None) is not None or
config.get('client_path', None) is not None
):
raise config.error(
"The deprecated 'client_repo' and 'client_path' options\n"
"have been removed. See Moonraker's configuration docs\n"
"for details on client configuration.")
client_sections = config.get_prefix_sections("update_manager ")
for section in client_sections:
cfg = config[section]
name = section.split()[-1]
if name in self.updaters:
raise config.error(f"Client repo {name} already added")
client_type = cfg.get("type")
if client_type in ["web", "web_beta"]:
self.updaters[name] = WebClientDeploy(cfg, self.cmd_helper)
elif client_type in ["git_repo", "zip", "zip_beta"]:
path = os.path.expanduser(cfg.get('path'))
self.updaters[name] = get_deploy_class(path)(
cfg, self.cmd_helper)
else:
raise config.error(
f"Invalid type '{client_type}' for section [{section}]")
# Prune stale data from the database
umdb = self.cmd_helper.get_umdb()
db_keys = umdb.keys()
for key in db_keys:
if key not in self.updaters:
logging.info(f"Removing stale update_manager data: {key}")
umdb.pop(key, None)
self.cmd_request_lock = asyncio.Lock()
self.klippy_identified_evt: Optional[asyncio.Event] = None
# Auto Status Refresh
self.refresh_timer: Optional[FlexTimer] = None
if auto_refresh_enabled:
self.refresh_timer = self.event_loop.register_timer(
self._handle_auto_refresh)
self.server.register_endpoint(
"/machine/update/moonraker", ["POST"],
self._handle_update_request)
self.server.register_endpoint(
"/machine/update/klipper", ["POST"],
self._handle_update_request)
self.server.register_endpoint(
"/machine/update/system", ["POST"],
self._handle_update_request)
self.server.register_endpoint(
"/machine/update/client", ["POST"],
self._handle_update_request)
self.server.register_endpoint(
"/machine/update/full", ["POST"],
self._handle_full_update_request)
self.server.register_endpoint(
"/machine/update/status", ["GET"],
self._handle_status_request)
self.server.register_endpoint(
"/machine/update/recover", ["POST"],
self._handle_repo_recovery)
self.server.register_notification("update_manager:update_response")
self.server.register_notification("update_manager:update_refreshed")
# Register Ready Event
self.server.register_event_handler(
"server:klippy_identified", self._set_klipper_repo)
async def component_init(self) -> None:
async with self.cmd_request_lock:
for updater in list(self.updaters.values()):
if updater.needs_refresh():
ret = updater.refresh()
await ret
if self.refresh_timer is not None:
self.refresh_timer.start(delay=UPDATE_REFRESH_INTERVAL)
async def _set_klipper_repo(self) -> None:
if self.klippy_identified_evt is not None:
self.klippy_identified_evt.set()
kinfo = self.server.get_klippy_info()
if not kinfo:
logging.info("No valid klippy info received")
return
kpath: str = kinfo['klipper_path']
executable: str = kinfo['python_path']
kupdater = self.updaters.get('klipper')
if (
isinstance(kupdater, AppDeploy) and
kupdater.check_same_paths(kpath, executable)
):
# Current Klipper Updater is valid
return
need_notification = not isinstance(kupdater, AppDeploy)
self.updaters['klipper'] = get_deploy_class(kpath)(
self.app_config[f"update_manager klipper"], self.cmd_helper,
{
'channel': self.channel,
'path': kpath,
'executable': executable
})
async with self.cmd_request_lock:
await self.updaters['klipper'].refresh()
if need_notification:
vinfo: Dict[str, Any] = {}
for name, updater in self.updaters.items():
vinfo[name] = updater.get_update_status()
uinfo = self.cmd_helper.get_rate_limit_stats()
uinfo['version_info'] = vinfo
uinfo['busy'] = self.cmd_helper.is_update_busy()
self.server.send_event("update_manager:update_refreshed", uinfo)
async def _check_klippy_printing(self) -> bool:
kapi: APIComp = self.server.lookup_component('klippy_apis')
result: Dict[str, Any] = await kapi.query_objects(
{'print_stats': None}, default={})
pstate: str = result.get('print_stats', {}).get('state', "")
return pstate.lower() == "printing"
async def _handle_auto_refresh(self, eventtime: float) -> float:
cur_hour = time.localtime(time.time()).tm_hour
# Update when the local time is between 12AM and 5AM
if cur_hour >= MAX_UPDATE_HOUR:
return eventtime + UPDATE_REFRESH_INTERVAL
if await self._check_klippy_printing():
# Don't Refresh during a print
logging.info("Klippy is printing, auto refresh aborted")
return eventtime + UPDATE_REFRESH_INTERVAL
vinfo: Dict[str, Any] = {}
need_notify = False
async with self.cmd_request_lock:
try:
for name, updater in list(self.updaters.items()):
if updater.needs_refresh():
await updater.refresh()
need_notify = True
vinfo[name] = updater.get_update_status()
except Exception:
logging.exception("Unable to Refresh Status")
return eventtime + UPDATE_REFRESH_INTERVAL
if need_notify:
uinfo = self.cmd_helper.get_rate_limit_stats()
uinfo['version_info'] = vinfo
uinfo['busy'] = self.cmd_helper.is_update_busy()
self.server.send_event("update_manager:update_refreshed", uinfo)
return eventtime + UPDATE_REFRESH_INTERVAL
async def _handle_update_request(self,
web_request: WebRequest
) -> str:
if await self._check_klippy_printing():
raise self.server.error("Update Refused: Klippy is printing")
app: str = web_request.get_endpoint().split("/")[-1]
if app == "client":
app = web_request.get('name')
if self.cmd_helper.is_app_updating(app):
return f"Object {app} is currently being updated"
updater = self.updaters.get(app, None)
if updater is None:
raise self.server.error(f"Updater {app} not available", 404)
async with self.cmd_request_lock:
self.cmd_helper.set_update_info(app, id(web_request))
try:
if not await self._check_need_reinstall(app):
await updater.update()
except Exception as e:
self.cmd_helper.notify_update_response(
f"Error updating {app}")
self.cmd_helper.notify_update_response(
str(e), is_complete=True)
raise
finally:
self.cmd_helper.clear_update_info()
return "ok"
async def _handle_full_update_request(self,
web_request: WebRequest
) -> str:
async with self.cmd_request_lock:
app_name = ""
self.cmd_helper.set_update_info('full', id(web_request),
full_complete=False)
self.cmd_helper.notify_update_response(
"Preparing full software update...")
try:
# Perform system updates
if 'system' in self.updaters:
app_name = 'system'
await self.updaters['system'].update()
# Update clients
for name, updater in self.updaters.items():
if name in ['klipper', 'moonraker', 'system']:
continue
app_name = name
if not await self._check_need_reinstall(app_name):
await updater.update()
# Update Klipper
app_name = 'klipper'
kupdater = self.updaters.get('klipper')
if isinstance(kupdater, AppDeploy):
self.klippy_identified_evt = asyncio.Event()
klippy_updated = True
if not await self._check_need_reinstall(app_name):
klippy_updated = await kupdater.update()
if klippy_updated:
self.cmd_helper.notify_update_response(
"Waiting for Klippy to reconnect (this may take"
" up to 2 minutes)...")
try:
await asyncio.wait_for(
self.klippy_identified_evt.wait(), 120.)
except asyncio.TimeoutError:
self.cmd_helper.notify_update_response(
"Klippy reconnect timed out...")
else:
self.cmd_helper.notify_update_response(
f"Klippy Reconnected")
self.klippy_identified_evt = None
# Update Moonraker
app_name = 'moonraker'
if not await self._check_need_reinstall(app_name):
await self.updaters['moonraker'].update()
self.cmd_helper.set_full_complete(True)
self.cmd_helper.notify_update_response(
"Full Update Complete", is_complete=True)
except Exception as e:
self.cmd_helper.notify_update_response(
f"Error updating {app_name}")
self.cmd_helper.set_full_complete(True)
self.cmd_helper.notify_update_response(
str(e), is_complete=True)
finally:
self.cmd_helper.clear_update_info()
return "ok"
async def _check_need_reinstall(self, name: str) -> bool:
if name not in self.updaters:
return False
updater = self.updaters[name]
if not isinstance(updater, AppDeploy):
return False
if not updater.check_need_channel_swap():
return False
app_type = updater.get_configured_type()
if app_type == "git_repo":
deploy_class: Type = GitDeploy
else:
deploy_class = ZipDeploy
if isinstance(updater, deploy_class):
# Here the channel swap can be done without instantiating a new
# class, as it will automatically be done when the user updates.
return False
# Instantiate the new updater. This will perform a reinstallation
new_updater = await deploy_class.from_application(updater)
self.updaters[name] = new_updater
return True
async def _handle_status_request(self,
web_request: WebRequest
) -> Dict[str, Any]:
check_refresh = web_request.get_boolean('refresh', False)
# Override a request to refresh if:
# - An update is in progress
# - Klippy is printing
if (
self.cmd_helper.is_update_busy() or
await self._check_klippy_printing()
):
check_refresh = False
if check_refresh:
# Acquire the command request lock if we want force a refresh
await self.cmd_request_lock.acquire()
# Now that we have acquired the lock reject attempts to spam
# the refresh request.
lrt = max([upd.get_last_refresh_time()
for upd in self.updaters.values()])
if time.time() < lrt + 60.:
check_refresh = False
self.cmd_request_lock.release()
vinfo: Dict[str, Any] = {}
try:
for name, updater in list(self.updaters.items()):
if check_refresh:
await updater.refresh()
vinfo[name] = updater.get_update_status()
except Exception:
raise
finally:
if check_refresh:
self.cmd_request_lock.release()
ret = self.cmd_helper.get_rate_limit_stats()
ret['version_info'] = vinfo
ret['busy'] = self.cmd_helper.is_update_busy()
if check_refresh:
event_loop = self.server.get_event_loop()
event_loop.delay_callback(
.2, self.server.send_event,
"update_manager:update_refreshed", ret)
return ret
async def _handle_repo_recovery(self,
web_request: WebRequest
) -> str:
if await self._check_klippy_printing():
raise self.server.error(
"Recovery Attempt Refused: Klippy is printing")
app: str = web_request.get_str('name')
hard = web_request.get_boolean("hard", False)
update_deps = web_request.get_boolean("update_deps", False)
updater = self.updaters.get(app, None)
if updater is None:
raise self.server.error(f"Updater {app} not available", 404)
elif not isinstance(updater, GitDeploy):
raise self.server.error(f"Upater {app} is not a Git Repo Type")
async with self.cmd_request_lock:
self.cmd_helper.set_update_info(f"recover_{app}", id(web_request))
try:
await updater.recover(hard, update_deps)
except Exception as e:
self.cmd_helper.notify_update_response(
f"Error Recovering {app}")
self.cmd_helper.notify_update_response(
str(e), is_complete=True)
raise
finally:
self.cmd_helper.clear_update_info()
return "ok"
def close(self) -> None:
self.cmd_helper.close()
if self.refresh_timer is not None:
self.refresh_timer.stop()
class CommandHelper:
def __init__(self, config: ConfigHelper) -> None:
self.server = config.get_server()
self.debug_enabled = config.getboolean('enable_repo_debug', False)
if self.debug_enabled:
logging.warning("UPDATE MANAGER: REPO DEBUG ENABLED")
shell_cmd: SCMDComp = self.server.lookup_component('shell_command')
self.scmd_error = shell_cmd.error
self.build_shell_command = shell_cmd.build_shell_command
self.pkg_updater: Optional[PackageDeploy] = None
self.http_client = AsyncHTTPClient()
self.github_request_cache: Dict[str, CachedGithubResponse] = {}
# database management
db: DBComp = self.server.lookup_component('database')
db.register_local_namespace("update_manager")
self.umdb = db.wrap_namespace("update_manager")
# Refresh Time Tracking (default is to refresh every 28 days)
reresh_interval = config.getint('refresh_interval', 672)
# Convert to seconds
self.refresh_interval = reresh_interval * 60 * 60
# GitHub API Rate Limit Tracking
self.gh_rate_limit: Optional[int] = None
self.gh_limit_remaining: Optional[int] = None
self.gh_limit_reset_time: Optional[float] = None
# Update In Progress Tracking
self.cur_update_app: Optional[str] = None
self.cur_update_id: Optional[int] = None
self.full_complete: bool = False
def get_server(self) -> Server:
return self.server
def get_refresh_interval(self) -> float:
return self.refresh_interval
def get_umdb(self) -> NamespaceWrapper:
return self.umdb
def is_debug_enabled(self) -> bool:
return self.debug_enabled
def set_update_info(self,
app: str,
uid: int,
full_complete: bool = True
) -> None:
self.cur_update_app = app
self.cur_update_id = uid
self.full_complete = full_complete
def set_full_complete(self, complete: bool = False):
self.full_complete = complete
def clear_update_info(self) -> None:
self.cur_update_app = self.cur_update_id = None
self.full_complete = False
def is_app_updating(self, app_name: str) -> bool:
return self.cur_update_app == app_name
def is_update_busy(self) -> bool:
return self.cur_update_app is not None
def set_package_updater(self, updater: PackageDeploy) -> None:
self.pkg_updater = updater
def get_rate_limit_stats(self) -> Dict[str, Any]:
return {
'github_rate_limit': self.gh_rate_limit,
'github_requests_remaining': self.gh_limit_remaining,
'github_limit_reset_time': self.gh_limit_reset_time,
}
async def run_cmd(self,
cmd: str,
timeout: float = 20.,
notify: bool = False,
retries: int = 1,
env: Optional[Dict[str, str]] = None,
cwd: Optional[str] = None,
sig_idx: int = 1
) -> None:
cb = self.notify_update_response if notify else None
scmd = self.build_shell_command(cmd, callback=cb, env=env, cwd=cwd)
for _ in range(retries):
if await scmd.run(timeout=timeout, sig_idx=sig_idx):
break
else:
raise self.server.error("Shell Command Error")
async def run_cmd_with_response(self,
cmd: str,
timeout: float = 20.,
retries: int = 5,
env: Optional[Dict[str, str]] = None,
cwd: Optional[str] = None,
sig_idx: int = 1
) -> str:
scmd = self.build_shell_command(cmd, None, env=env, cwd=cwd)
result = await scmd.run_with_response(timeout, retries,
sig_idx=sig_idx)
return result
async def github_api_request(self,
url: str,
retries: int = 5
) -> JsonType:
if (
self.gh_limit_reset_time is not None and
self.gh_limit_remaining == 0
):
curtime = time.time()
if curtime < self.gh_limit_reset_time:
raise self.server.error(
f"GitHub Rate Limit Reached\nRequest: {url}\n"
f"Limit Reset Time: {time.ctime(self.gh_limit_remaining)}")
if url in self.github_request_cache:
cached_request = self.github_request_cache[url]
etag: Optional[str] = cached_request.get_etag()
else:
cached_request = CachedGithubResponse()
etag = None
self.github_request_cache[url] = cached_request
headers = {"Accept": "application/vnd.github.v3+json"}
if etag is not None:
headers['If-None-Match'] = etag
for i in range(retries):
error: Optional[Exception] = None
try:
fut = self.http_client.fetch(
url, headers=headers, connect_timeout=5.,
request_timeout=5., raise_error=False)
resp: HTTPResponse
resp = await asyncio.wait_for(fut, 10.)
except Exception:
logging.exception(
f"Error Processing GitHub API request: {url}")
if i + 1 < retries:
await asyncio.sleep(1.)
continue
etag = resp.headers.get('etag', None)
if etag is not None:
if etag[:2] == "W/":
etag = etag[2:]
logging.info(
"GitHub API Request Processed\n"
f"URL: {url}\n"
f"Response Code: {resp.code}\n"
f"Response Reason: {resp.reason}\n"
f"ETag: {etag}")
if resp.code == 403:
error = self.server.error(
f"Forbidden GitHub Request: {resp.reason}")
elif resp.code == 304:
logging.info(f"Github Request not Modified: {url}")
return cached_request.get_cached_result()
if resp.code != 200:
logging.info(
f"Github Request failed: {resp.code} {resp.reason}")
if i + 1 < retries:
await asyncio.sleep(1.)
continue
# Update rate limit on return success
if 'X-Ratelimit-Limit' in resp.headers:
self.gh_rate_limit = int(resp.headers['X-Ratelimit-Limit'])
self.gh_limit_remaining = int(
resp.headers['X-Ratelimit-Remaining'])
self.gh_limit_reset_time = float(
resp.headers['X-Ratelimit-Reset'])
if error is not None:
raise error
decoded = json.loads(resp.body)
if etag is not None:
cached_request.update_result(etag, decoded)
return decoded
raise self.server.error(
f"Retries exceeded for GitHub API request: {url}")
async def http_download_request(self,
url: str,
content_type: str,
timeout: float = 180.,
retries: int = 5
) -> bytes:
for i in range(retries):
try:
fut = self.http_client.fetch(
url, headers={"Accept": content_type},
connect_timeout=5., request_timeout=timeout)
resp: HTTPResponse
resp = await asyncio.wait_for(fut, timeout + 10.)
except Exception:
logging.exception("Error Processing Download")
if i + 1 == retries:
raise
await asyncio.sleep(1.)
continue
return resp.body
raise self.server.error(
f"Retries exceeded for GitHub API request: {url}")
async def streaming_download_request(self,
url: str,
dest: Union[str, pathlib.Path],
content_type: str,
size: int,
timeout: float = 180.,
retries: int = 5
) -> None:
if isinstance(dest, str):
dest = pathlib.Path(dest)
for i in range(retries):
dl = StreamingDownload(self, dest, size)
try:
fut = self.http_client.fetch(
url, headers={"Accept": content_type},
connect_timeout=5., request_timeout=timeout,
streaming_callback=dl.on_chunk_recd)
resp: HTTPResponse
resp = await asyncio.wait_for(fut, timeout + 10.)
except Exception:
logging.exception("Error Processing Download")
if i + 1 == retries:
raise
await asyncio.sleep(1.)
continue
finally:
await dl.close()
if resp.code < 400:
return
raise self.server.error(f"Retries exceeded for request: {url}")
def notify_update_response(self,
resp: Union[str, bytes],
is_complete: bool = False
) -> None:
if self.cur_update_app is None:
return
resp = resp.strip()
if isinstance(resp, bytes):
resp = resp.decode()
done = is_complete and self.full_complete
notification = {
'message': resp,
'application': self.cur_update_app,
'proc_id': self.cur_update_id,
'complete': done}
self.server.send_event(
"update_manager:update_response", notification)
async def install_packages(self,
package_list: List[str],
**kwargs
) -> None:
if self.pkg_updater is None:
return
await self.pkg_updater.install_packages(package_list, **kwargs)
def close(self) -> None:
self.http_client.close()
class CachedGithubResponse:
def __init__(self) -> None:
self.etag: Optional[str] = None
self.cached_result: JsonType = {}
def get_etag(self) -> Optional[str]:
return self.etag
def get_cached_result(self) -> JsonType:
return self.cached_result
def update_result(self, etag: str, result: JsonType) -> None:
self.etag = etag
self.cached_result = result
class StreamingDownload:
def __init__(self,
cmd_helper: CommandHelper,
dest: pathlib.Path,
download_size: int) -> None:
self.cmd_helper = cmd_helper
self.event_loop = cmd_helper.get_server().get_event_loop()
self.name = dest.name
self.file_hdl = dest.open('wb')
self.download_size = download_size
self.total_recd: int = 0
self.last_pct: int = 0
self.chunk_buffer: List[bytes] = []
self.busy_evt: asyncio.Event = asyncio.Event()
self.busy_evt.set()
def on_chunk_recd(self, chunk: bytes) -> None:
if not chunk:
return
self.chunk_buffer.append(chunk)
if not self.busy_evt.is_set():
return
self.busy_evt.clear()
self.event_loop.register_callback(self._process_buffer)
async def close(self):
await self.busy_evt.wait()
self.file_hdl.close()
async def _process_buffer(self):
while self.chunk_buffer:
chunk = self.chunk_buffer.pop(0)
self.total_recd += len(chunk)
pct = int(self.total_recd / self.download_size * 100 + .5)
await self.event_loop.run_in_thread(self.file_hdl.write, chunk)
if pct >= self.last_pct + 5:
self.last_pct = pct
totals = f"{self.total_recd // 1024} KiB / " \
f"{self.download_size // 1024} KiB"
self.cmd_helper.notify_update_response(
f"Downloading {self.name}: {totals} [{pct}%]")
self.busy_evt.set()
class PackageDeploy(BaseDeploy):
APT_CMD = "sudo DEBIAN_FRONTEND=noninteractive apt-get"
def __init__(self,
config: ConfigHelper,
cmd_helper: CommandHelper
) -> None:
super().__init__(config, cmd_helper, "system", "", "")
cmd_helper.set_package_updater(self)
storage = self._load_storage()
self.available_packages: List[str] = storage.get('packages', [])
self.refresh_evt: Optional[asyncio.Event] = None
self.mutex: asyncio.Lock = asyncio.Lock()
async def refresh(self) -> None:
# TODO: Use python-apt python lib rather than command line for updates
if self.refresh_evt is not None:
self.refresh_evt.wait()
return
async with self.mutex:
self.refresh_evt = asyncio.Event()
try:
# Do not force a refresh until the server has started
if self.server.is_running():
await self._update_apt(force=True)
res = await self.cmd_helper.run_cmd_with_response(
"apt list --upgradable", timeout=60.)
pkg_list = [p.strip() for p in res.split("\n") if p.strip()]
if pkg_list:
pkg_list = pkg_list[2:]
self.available_packages = [p.split("/", maxsplit=1)[0]
for p in pkg_list]
pkg_msg = "\n".join(self.available_packages)
logging.info(
f"Detected {len(self.available_packages)} package updates:"
f"\n{pkg_msg}")
except Exception:
logging.exception("Error Refreshing System Packages")
self.refresh_evt.set()
self.refresh_evt = None
# Update Persistent Storage
self._save_state()
def get_persistent_data(self) -> Dict[str, Any]:
storage = super().get_persistent_data()
storage['packages'] = self.available_packages
return storage
async def update(self) -> bool:
async with self.mutex:
if not self.available_packages:
return False
self.cmd_helper.notify_update_response("Updating packages...")
try:
await self._update_apt(force=True, notify=True)
await self.cmd_helper.run_cmd(
f"{self.APT_CMD} upgrade --yes", timeout=3600.,
notify=True)
except Exception:
raise self.server.error("Error updating system packages")
self.available_packages = []
self._save_state()
self.cmd_helper.notify_update_response(
"Package update finished...", is_complete=True)
return True
async def _update_apt(self,
force: bool = False,
notify: bool = False
) -> None:
curtime = time.time()
if force or curtime > self.last_refresh_time + 3600.:
# Don't update if a request was done within the last hour
await self.cmd_helper.run_cmd(
f"{self.APT_CMD} update --allow-releaseinfo-change",
timeout=300., notify=notify)
async def install_packages(self,
package_list: List[str],
**kwargs
) -> None:
timeout: float = kwargs.get('timeout', 300.)
retries: int = kwargs.get('retries', 3)
notify: bool = kwargs.get('notify', False)
pkgs = " ".join(package_list)
await self._update_apt(notify=notify)
await self.cmd_helper.run_cmd(
f"{self.APT_CMD} install --yes {pkgs}", timeout=timeout,
retries=retries, notify=notify)
def get_update_status(self) -> Dict[str, Any]:
return {
'package_count': len(self.available_packages),
'package_list': self.available_packages
}
class WebClientDeploy(BaseDeploy):
def __init__(self,
config: ConfigHelper,
cmd_helper: CommandHelper
) -> None:
super().__init__(config, cmd_helper, prefix="Web Client")
self.repo = config.get('repo').strip().strip("/")
self.owner = self.repo.split("/", 1)[0]
self.path = pathlib.Path(config.get("path")).expanduser().resolve()
self.type = config.get('type')
self.channel = "stable" if self.type == "web" else "beta"
self.persistent_files: List[str] = []
pfiles = config.getlist('persistent_files', None)
if pfiles is not None:
self.persistent_files = [pf.strip("/") for pf in pfiles]
if ".version" in self.persistent_files:
raise config.error(
"Invalid value for option 'persistent_files': "
"'.version' can not be persistent")
storage = self._load_storage()
self.version: str = storage.get('version', "?")
self.remote_version: str = storage.get('remote_version', "?")
dl_info: List[Any] = storage.get('dl_info', ["?", "?", 0])
self.dl_info: Tuple[str, str, int] = cast(
Tuple[str, str, int], tuple(dl_info))
self.refresh_evt: Optional[asyncio.Event] = None
self.mutex: asyncio.Lock = asyncio.Lock()
logging.info(f"\nInitializing Client Updater: '{self.name}',"
f"\nChannel: {self.channel}"
f"\npath: {self.path}")
async def _get_local_version(self) -> None:
version_path = self.path.joinpath(".version")
if version_path.is_file():
event_loop = self.server.get_event_loop()
version = await event_loop.run_in_thread(version_path.read_text)
self.version = version.strip()
else:
self.version = "?"
async def refresh(self) -> None:
if self.refresh_evt is not None:
self.refresh_evt.wait()
return
async with self.mutex:
self.refresh_evt = asyncio.Event()
try:
await self._get_local_version()
await self._get_remote_version()
except Exception:
logging.exception("Error Refreshing Client")
self.refresh_evt.set()
self.refresh_evt = None
self._save_state()
async def _get_remote_version(self) -> None:
# Remote state
url = f"https://api.github.com/repos/{self.repo}/releases"
try:
releases = await self.cmd_helper.github_api_request(url)
assert isinstance(releases, list)
except Exception:
logging.exception(f"Client {self.repo}: Github Request Error")
releases = []
result: Dict[str, Any] = {}
for release in releases:
if self.channel == "stable":
if not release['prerelease']:
result = release
break
else:
result = release
break
self.remote_version = result.get('name', "?")
release_asset: Dict[str, Any] = result.get('assets', [{}])[0]
dl_url: str = release_asset.get('browser_download_url', "?")
content_type: str = release_asset.get('content_type', "?")
size: int = release_asset.get('size', 0)
self.dl_info = (dl_url, content_type, size)
logging.info(
f"Github client Info Received:\nRepo: {self.name}\n"
f"Local Version: {self.version}\n"
f"Remote Version: {self.remote_version}\n"
f"Pre-release: {result.get('prerelease', '?')}\n"
f"url: {dl_url}\n"
f"size: {size}\n"
f"Content Type: {content_type}")
def get_persistent_data(self) -> Dict[str, Any]:
storage = super().get_persistent_data()
storage['version'] = self.version
storage['remote_version'] = self.remote_version
storage['dl_info'] = list(self.dl_info)
return storage
async def update(self) -> bool:
async with self.mutex:
if self.remote_version == "?":
await self._get_remote_version()
if self.remote_version == "?":
raise self.server.error(
f"Client {self.repo}: Unable to locate update")
dl_url, content_type, size = self.dl_info
if dl_url == "?":
raise self.server.error(
f"Client {self.repo}: Invalid download url")
if self.version == self.remote_version:
# Already up to date
return False
event_loop = self.server.get_event_loop()
self.cmd_helper.notify_update_response(
f"Updating Web Client {self.name}...")
self.cmd_helper.notify_update_response(
f"Downloading Client: {self.name}")
with tempfile.TemporaryDirectory(
suffix=self.name, prefix="client") as tempdirname:
tempdir = pathlib.Path(tempdirname)
temp_download_file = tempdir.joinpath(f"{self.name}.zip")
temp_persist_dir = tempdir.joinpath(self.name)
await self.cmd_helper.streaming_download_request(
dl_url, temp_download_file, content_type, size)
self.cmd_helper.notify_update_response(
f"Download Complete, extracting release to '{self.path}'")
await event_loop.run_in_thread(
self._extract_release, temp_persist_dir,
temp_download_file)
self.version = self.remote_version
version_path = self.path.joinpath(".version")
if not version_path.exists():
await event_loop.run_in_thread(
version_path.write_text, self.version)
self.cmd_helper.notify_update_response(
f"Client Update Finished: {self.name}", is_complete=True)
self._save_state()
return True
def _extract_release(self,
persist_dir: pathlib.Path,
release_file: pathlib.Path
) -> None:
if not persist_dir.exists():
os.mkdir(persist_dir)
if self.path.is_dir():
# find and move persistent files
for fname in os.listdir(self.path):
src_path = self.path.joinpath(fname)
if fname in self.persistent_files:
dest_dir = persist_dir.joinpath(fname).parent
os.makedirs(dest_dir, exist_ok=True)
shutil.move(str(src_path), str(dest_dir))
shutil.rmtree(self.path)
os.mkdir(self.path)
with zipfile.ZipFile(release_file) as zf:
zf.extractall(self.path)
# Move temporary files back into
for fname in os.listdir(persist_dir):
src_path = persist_dir.joinpath(fname)
dest_dir = self.path.joinpath(fname).parent
os.makedirs(dest_dir, exist_ok=True)
shutil.move(str(src_path), str(dest_dir))
def get_update_status(self) -> Dict[str, Any]:
return {
'name': self.name,
'owner': self.owner,
'version': self.version,
'remote_version': self.remote_version,
'configured_type': self.type,
'channel': self.channel
}
def load_component(config: ConfigHelper) -> UpdateManager:
return UpdateManager(config)