# 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.ioloop import PeriodicCallback
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,
)
if TYPE_CHECKING:
from tornado.httpclient import HTTPResponse
from moonraker import Server
from confighelper import ConfigHelper
from websockets import WebRequest
from components import klippy_apis
from components import shell_command
from components import database
APIComp = klippy_apis.KlippyAPI
SCMDComp = shell_command.ShellCommandFactory
DBComp = database.MoonrakerDatabase
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_MS = 3600000
# Perform auto refresh no sooner than 12 hours apart
MIN_REFRESH_TIME = 43200
# Perform auto refresh no later than 4am
MAX_PKG_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}]")
self.cmd_request_lock = asyncio.Lock()
self.initialized_lock = asyncio.Event()
self.klippy_identified_evt: Optional[asyncio.Event] = None
# Auto Status Refresh
self.last_refresh_time: float = 0
self.refresh_cb: Optional[PeriodicCallback] = None
if auto_refresh_enabled:
self.refresh_cb = PeriodicCallback(
self._handle_auto_refresh, # type: ignore
UPDATE_REFRESH_INTERVAL_MS)
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)
# Initialize GitHub API Rate Limits and configured updaters
self.event_loop.register_callback(
self._initalize_updaters, list(self.updaters.values()))
async def _initalize_updaters(self,
initial_updaters: List[BaseDeploy]
) -> None:
async with self.cmd_request_lock:
await self.cmd_helper.init_api_rate_limit()
for updater in initial_updaters:
if isinstance(updater, PackageDeploy):
ret = updater.refresh(False)
else:
ret = updater.refresh()
await ret
self.initialized_lock.set()
if self.refresh_cb is not None:
self.refresh_cb.start()
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) -> None:
if await self._check_klippy_printing():
# Don't Refresh during a print
logging.info("Klippy is printing, auto refresh aborted")
return
cur_time = time.time()
cur_hour = time.localtime(cur_time).tm_hour
time_diff = cur_time - self.last_refresh_time
# Update packages if it has been more than 12 hours
# and the local time is between 12AM and 5AM
if time_diff < MIN_REFRESH_TIME or cur_hour >= MAX_PKG_UPDATE_HOUR:
# Not within the update time window
return
vinfo: Dict[str, Any] = {}
async with self.cmd_request_lock:
try:
for name, updater in list(self.updaters.items()):
await updater.refresh()
vinfo[name] = updater.get_update_status()
except Exception:
logging.exception("Unable to Refresh Status")
return
self.last_refresh_time = time.time()
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 _handle_update_request(self,
web_request: WebRequest
) -> str:
await self.initialized_lock.wait()
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]:
await self.initialized_lock.wait()
check_refresh = web_request.get_boolean('refresh', False)
# Don't refresh if a print is currently in progress or
# if an update is in progress. Just return the current
# state
if self.cmd_helper.is_update_busy() or \
await self._check_klippy_printing():
check_refresh = False
need_refresh = False
if check_refresh:
# Acquire the command request lock if we want force a refresh
await self.cmd_request_lock.acquire()
# If a request to refresh is received within 1 minute of
# a previous refresh, don't force a new refresh. This gives
# clients a fresh state by acquiring the lock and waiting
# without unnecessary processing.
need_refresh = time.time() > (self.last_refresh_time + 60.)
vinfo: Dict[str, Any] = {}
try:
for name, updater in list(self.updaters.items()):
if need_refresh:
await updater.refresh()
vinfo[name] = updater.get_update_status()
if need_refresh:
self.last_refresh_time = time.time()
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 need_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:
await self.initialized_lock.wait()
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_cb is not None:
self.refresh_cb.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] = {}
# 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 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 init_api_rate_limit(self) -> None:
url = "https://api.github.com/rate_limit"
while 1:
try:
resp = await self.github_api_request(url, is_init=True)
assert isinstance(resp, dict)
core = resp['resources']['core']
self.gh_rate_limit = core['limit']
self.gh_limit_remaining = core['remaining']
self.gh_limit_reset_time = core['reset']
except Exception:
logging.exception("Error Initializing GitHub API Rate Limit")
await asyncio.sleep(30.)
else:
reset_time = time.ctime(self.gh_limit_reset_time)
logging.info(
"GitHub API Rate Limit Initialized\n"
f"Rate Limit: {self.gh_rate_limit}\n"
f"Rate Limit Remaining: {self.gh_limit_remaining}\n"
f"Rate Limit Reset Time: {reset_time}, "
f"Seconds Since Epoch: {self.gh_limit_reset_time}")
break
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)
while retries:
if await scmd.run(timeout=timeout, sig_idx=sig_idx):
break
retries -= 1
if not retries:
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,
is_init: Optional[bool] = False
) -> JsonType:
if self.gh_limit_remaining == 0:
curtime = time.time()
assert self.gh_limit_reset_time is not None
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
retries = 5
while retries:
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:
retries -= 1
if retries > 0:
logging.exception(
f"Error Processing GitHub API request: {url}")
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:
raise 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:
retries -= 1
if not retries:
raise self.server.error(
f"Github Request failed: {resp.code} {resp.reason}")
logging.info(
f"Github request error, {retries} retries remaining")
await asyncio.sleep(1.)
continue
# Update rate limit on return success
if 'X-Ratelimit-Limit' in resp.headers and not is_init:
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'])
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.
) -> bytes:
retries = 5
while 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:
retries -= 1
logging.exception("Error Processing Download")
if not 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.
) -> None:
if isinstance(dest, str):
dest = pathlib.Path(dest)
retries = 5
while 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:
retries -= 1
logging.exception("Error Processing Download")
if not retries:
raise
await asyncio.sleep(1.)
continue
finally:
await dl.close()
if resp.code < 400:
return
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)
cmd_helper.set_package_updater(self)
self.available_packages: List[str] = []
self.refresh_evt: Optional[asyncio.Event] = None
# Initialze to current time so an update is not performed on init
self.last_apt_update_time: float = time.time()
self.mutex: asyncio.Lock = asyncio.Lock()
async def refresh(self, fetch_packages: bool = True) -> 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:
await self._update_apt(force=fetch_packages)
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
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.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_apt_update_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)
self.last_apt_update_time = time.time()
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)
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.get('persistent_files', None)
if pfiles is not None:
self.persistent_files = [pf.strip().strip("/") for pf in
pfiles.split("\n") if pf.strip()]
if ".version" in self.persistent_files:
raise config.error(
"Invalid value for option 'persistent_files': "
"'.version' can not be persistent")
self.version: str = "?"
self.remote_version: str = "?"
self.dl_info: Tuple[str, str, int] = ("?", "?", 0)
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
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}")
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)
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)