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import itertools
import re
import sys
import threading
import time
from functools import wraps
from typing import Optional
from uaclient import (
actions,
api,
daemon,
entitlements,
event_logger,
exceptions,
lock,
messages,
status,
util,
)
from uaclient.api.u.pro.security.fix._common import CVE_OR_USN_REGEX
from uaclient.api.u.pro.status.is_attached.v1 import _is_attached
from uaclient.apt import AptProxyScope, setup_apt_proxy
from uaclient.config import UAConfig
from uaclient.files import machine_token
event = event_logger.get_event_logger()
CLEAR_LINE_ANSI_CODE = "\033[K"
class CLIEnableDisableProgress(api.AbstractProgress):
def __init__(self, *, assume_yes: bool):
self.is_interactive = not assume_yes
self.assume_yes = assume_yes
def progress(
self,
*,
total_steps: int,
done_steps: int,
previous_step_message: Optional[str],
current_step_message: Optional[str]
):
if current_step_message is not None:
print(current_step_message)
def _on_event(self, event: str, payload):
if event == "info":
print(payload)
elif event == "message_operation":
if not util.handle_message_operations(payload, self.assume_yes):
raise exceptions.PromptDeniedError()
def _null_print(*args, **kwargs):
pass
def create_interactive_only_print_function(json_output: bool):
if json_output:
return _null_print
else:
return print
def assert_lock_file(lock_holder=None):
"""Decorator asserting exclusive access to lock file"""
def wrapper(f):
@wraps(f)
def new_f(*args, cfg, **kwargs):
with lock.RetryLock(lock_holder=lock_holder, sleep_time=1):
retval = f(*args, cfg=cfg, **kwargs)
return retval
return new_f
return wrapper
def assert_root(f):
"""Decorator asserting root user"""
@wraps(f)
def new_f(*args, **kwargs):
if not util.we_are_currently_root():
raise exceptions.NonRootUserError()
else:
return f(*args, **kwargs)
return new_f
def verify_json_format_args(f):
"""Decorator to verify if correct params are used for json format"""
@wraps(f)
def new_f(cmd_args, *args, **kwargs):
if not cmd_args:
return f(cmd_args, *args, **kwargs)
if cmd_args.format == "json" and not cmd_args.assume_yes:
raise exceptions.CLIJSONFormatRequireAssumeYes()
else:
return f(cmd_args, *args, **kwargs)
return new_f
def assert_attached(raise_custom_error_function=None):
"""Decorator asserting attached config.
:param msg_function: Optional function to generate a custom message
if raising an UnattachedError
"""
def wrapper(f):
@wraps(f)
def new_f(args, cfg, **kwargs):
if not _is_attached(cfg).is_attached:
if raise_custom_error_function:
command = getattr(args, "command", "")
service_names = getattr(args, "service", "")
raise_custom_error_function(
command=command, service_names=service_names, cfg=cfg
)
else:
raise exceptions.UnattachedError()
return f(args, cfg=cfg, **kwargs)
return new_f
return wrapper
def assert_not_attached(f):
"""Decorator asserting unattached config."""
@wraps(f)
def new_f(args, cfg, **kwargs):
if _is_attached(cfg).is_attached:
machine_token_file = machine_token.get_machine_token_file()
raise exceptions.AlreadyAttachedError(
account_name=machine_token_file.account.get("name", "")
)
return f(args, cfg=cfg, **kwargs)
return new_f
def assert_vulnerability_issue_valid(cmd):
def wrapper(f):
@wraps(f)
def new_f(args, cfg, **kwargs):
security_issue = getattr(args, "security_issue", "")
if not re.match(CVE_OR_USN_REGEX, security_issue):
raise exceptions.InvalidSecurityIssueIdFormat(
issue=security_issue,
cmd=cmd,
)
return f(args, cfg=cfg, **kwargs)
return new_f
return wrapper
def _raise_enable_disable_unattached_error(command, service_names, cfg):
"""Raises a custom error for enable/disable commands when unattached.
Takes into consideration if the services exist or not, and notify the user
accordingly."""
(
entitlements_found,
entitlements_not_found,
) = entitlements.get_valid_entitlement_names(names=service_names, cfg=cfg)
if entitlements_found and entitlements_not_found:
raise exceptions.UnattachedMixedServicesError(
valid_service=", ".join(entitlements_found),
operation=command,
invalid_service=", ".join(entitlements_not_found),
service_msg="",
)
elif entitlements_found:
raise exceptions.UnattachedValidServicesError(
valid_service=", ".join(entitlements_found), operation=command
)
else:
raise exceptions.UnattachedInvalidServicesError(
operation=command,
invalid_service=", ".join(entitlements_not_found),
service_msg="",
)
def post_cli_attach(cfg: UAConfig) -> None:
machine_token_file = machine_token.get_machine_token_file(cfg)
contract_name = machine_token_file.contract_name
if contract_name:
event.info(
messages.ATTACH_SUCCESS_TMPL.format(contract_name=contract_name)
)
else:
event.info(messages.ATTACH_SUCCESS_NO_CONTRACT_NAME)
daemon.stop()
daemon.cleanup(cfg)
status_dict, _ret = actions.status(cfg)
output = status.format_tabular(status_dict)
event.info(util.handle_unicode_characters(output))
event.process_events()
def configure_apt_proxy(
cfg: UAConfig,
scope: AptProxyScope,
set_key: str,
set_value: Optional[str],
) -> None:
"""
Handles setting part the apt proxies - global and uaclient scoped proxies
"""
if scope == AptProxyScope.GLOBAL:
http_proxy = cfg.global_apt_http_proxy
https_proxy = cfg.global_apt_https_proxy
elif scope == AptProxyScope.UACLIENT:
http_proxy = cfg.ua_apt_http_proxy
https_proxy = cfg.ua_apt_https_proxy
if "https" in set_key:
https_proxy = set_value
else:
http_proxy = set_value
setup_apt_proxy(
http_proxy=http_proxy, https_proxy=https_proxy, proxy_scope=scope
)
def run_spinner(stop_spinner, msg):
spinner = itertools.cycle(["|", "/", "-", "\\"])
while not stop_spinner.is_set():
sys.stdout.write(
"\r{}{}{}".format(msg, next(spinner), CLEAR_LINE_ANSI_CODE)
)
sys.stdout.flush()
time.sleep(0.1)
sys.stdout.write("\b")
def with_spinner(msg: Optional[str] = ""):
def wrapper(f):
@wraps(f)
def new_f(args, *, cfg, **kwargs):
if not sys.stdout.isatty():
return f(args, cfg=cfg, **kwargs)
stop_spinner = threading.Event()
spinner_thread = threading.Thread(
target=run_spinner, args=(stop_spinner, msg)
)
spinner_thread.start()
retval = f(args, cfg=cfg, **kwargs)
stop_spinner.set()
spinner_thread.join()
sys.stdout.write("\r" + CLEAR_LINE_ANSI_CODE)
sys.stdout.flush()
return retval
return new_f
return wrapper
def colorize_priority(priority):
if priority == "low":
return messages.TxtColor.INFOBLUE + priority + messages.TxtColor.ENDC
elif priority == "medium":
return (
messages.TxtColor.WARNINGYELLOW + priority + messages.TxtColor.ENDC
)
elif priority == "high":
return messages.TxtColor.ORANGE + priority + messages.TxtColor.ENDC
elif priority == "critical":
return messages.TxtColor.FAIL + priority + messages.TxtColor.ENDC
else:
return priority