diff options
Diffstat (limited to 'python/vyos')
| -rw-r--r-- | python/vyos/airbag.py | 60 | ||||
| -rw-r--r-- | python/vyos/logger.py | 143 | ||||
| -rw-r--r-- | python/vyos/util.py | 35 | ||||
| -rw-r--r-- | python/vyos/version.py | 66 |
4 files changed, 261 insertions, 43 deletions
diff --git a/python/vyos/airbag.py b/python/vyos/airbag.py index b0565192d..6698aa404 100644 --- a/python/vyos/airbag.py +++ b/python/vyos/airbag.py @@ -13,17 +13,14 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. -import os import sys -import logging -import logging.handlers from datetime import datetime from vyos import debug from vyos.config import Config +from vyos.logger import syslog from vyos.version import get_version -from vyos.util import run - +from vyos.version import get_full_version_data # we allow to disable the extra logging DISABLE = False @@ -59,12 +56,14 @@ def bug_report(dtype, value, trace): sys.stdout.flush() sys.stderr.flush() - information = { + information = get_full_version_data() + trace = '\n'.join(format_exception(dtype, value, trace)).replace('\n\n','\n') + + information.update({ 'date': datetime.now().strftime('%Y-%m-%d %H:%M:%S'), - 'version': get_version(), - 'trace': format_exception(dtype, value, trace), + 'trace': trace, 'instructions': COMMUNITY if 'rolling' in get_version() else SUPPORTED, - } + }) sys.stdout.write(INTRO.format(**information)) sys.stdout.flush() @@ -82,19 +81,14 @@ def intercepter(dtype, value, trace): pdb.pm() -def InterceptingLogger(address, _singleton=[False]): +def InterceptingLogger(_singleton=[False]): skip = _singleton.pop() _singleton.append(True) if skip: return - logger = logging.getLogger('VyOS') - logger.setLevel(logging.DEBUG) - handler = logging.handlers.SysLogHandler(address='/dev/log', facility='syslog') - logger.addHandler(handler) - # log to syslog any message sent to stderr - sys.stderr = _IO(sys.stderr, logger.critical) + sys.stderr = _IO(sys.stderr, syslog.critical) # lists as default arguments in function is normally dangerous @@ -124,15 +118,31 @@ except: # running testing so we are checking that we are on the router # as otherwise it prevents dpkg-buildpackage to work if get_version() and insession: - InterceptingLogger('/run/systemd/journal/dev-log') + InterceptingLogger() InterceptingException(intercepter) # Messages to print +# if the key before the value has not time, syslog takes that as the source of the message FAULT = """\ -Date: {date} -VyOS image: {version} +Report Time: {date} +Image Version: VyOS {version} +Release Train: {release_train} + +Built by: {built_by} +Built on: {built_on} +Build UUID: {build_uuid} +Build Commit ID: {build_git} + +Architecture: {system_arch} +Boot via: {boot_via} +System type: {system_type} + +Hardware vendor: {hardware_vendor} +Hardware model: {hardware_model} +Hardware S/N: {hardware_serial} +Hardware UUID: {hardware_uuid} {trace} """ @@ -140,13 +150,13 @@ VyOS image: {version} INTRO = """\ VyOS had an issue completing a command. -We are sorry that you encountered a problem with VyOS. +We are sorry that you encountered a problem while using VyOS. There are a few things you can do to help us (and yourself): {instructions} -PLEASE, when reporting, do include as much information as you can: -- do not obfuscate any data (feel free to send us a private communication with - the extra information if your business policy is strict on information sharing) +When reporting problems, please include as much information as possible: +- do not obfuscate any data (feel free to contact us privately if your + business policy requires it) - and include all the information presented below """ @@ -163,6 +173,8 @@ COMMUNITY = """\ SUPPORTED = """\ - Make sure you are running the latest stable version of VyOS the code is available at https://downloads.vyos.io/?dir=release/current -- Contact us on our online help desk +- Contact us using the online help desk https://support.vyos.io/ +- Join our community on slack where our users exchange help and advice + https://vyos.slack.com """.strip() diff --git a/python/vyos/logger.py b/python/vyos/logger.py new file mode 100644 index 000000000..f7cc964d5 --- /dev/null +++ b/python/vyos/logger.py @@ -0,0 +1,143 @@ +# Copyright 2020 VyOS maintainers and contributors <maintainers@vyos.io> +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with this library. If not, see <http://www.gnu.org/licenses/>. + +# A wrapper class around logging to make it easier to use + +# for a syslog logger: +# from vyos.logger import syslog +# syslog.critical('message') + +# for a stderr logger: +# from vyos.logger import stderr +# stderr.critical('message') + +# for a custom logger (syslog and file): +# from vyos.logger import getLogger +# combined = getLogger(__name__, syslog=True, stream=sys.stdout, filename='/tmp/test') +# combined.critical('message') + +import sys +import logging +import logging.handlers as handlers + +TIMED = '%(asctime)s: %(message)s' +SHORT = '%(filename)s: %(message)s' +CLEAR = '%(levelname) %(asctime)s %(filename)s: %(message)s' + +_levels = { + 'CRITICAL': logging.CRITICAL, + 'ERROR': logging.CRITICAL, + 'WARNING': logging.WARNING, + 'INFO': logging.INFO, + 'DEBUG': logging.DEBUG, + 'NOTSET': logging.NOTSET, +} + +# prevent recreation of already created logger +_created = {} + +def getLogger(name=None, **kwargs): + if name in _created: + if len(kwargs) == 0: + return _created[name] + raise ValueError('a logger with the name "{name} already exists') + + logger = logging.getLogger(name) + logger.setLevel(_levels[kwargs.get('level', 'DEBUG')]) + + if 'address' in kwargs or kwargs.get('syslog', False): + logger.addHandler(_syslog(**kwargs)) + if 'stream' in kwargs: + logger.addHandler(_stream(**kwargs)) + if 'filename' in kwargs: + logger.addHandler(_file(**kwargs)) + + _created[name] = logger + return logger + + +def _syslog(**kwargs): + formating = kwargs.get('format', SHORT) + handler = handlers.SysLogHandler( + address=kwargs.get('address', '/dev/log'), + facility=kwargs.get('facility', 'syslog'), + ) + handler.setFormatter(logging.Formatter(formating)) + return handler + + +def _stream(**kwargs): + formating = kwargs.get('format', CLEAR) + handler = logging.StreamHandler( + stream=kwargs.get('stream', sys.stderr), + ) + handler.setFormatter(logging.Formatter(formating)) + return handler + + +def _file(**kwargs): + formating = kwargs.get('format', CLEAR) + handler = handlers.RotatingFileHandler( + filename=kwargs.get('filename', 1048576), + maxBytes=kwargs.get('maxBytes', 1048576), + backupCount=kwargs.get('backupCount', 3), + ) + handler.setFormatter(logging.Formatter(formating)) + return handler + + +# exported pre-built logger, please keep in mind that the names +# must be unique otherwise the logger are shared + +# a logger for stderr +stderr = getLogger( + 'VyOS Syslog', + format=SHORT, + stream=sys.stderr, + address='/dev/log' +) + +# a logger to syslog +syslog = getLogger( + 'VyOS StdErr', + format='%(message)s', + address='/dev/log' +) + + +# testing +if __name__ == '__main__': + # from vyos.logger import getLogger + formating = '%(asctime)s (%(filename)s) %(levelname)s: %(message)s' + + # syslog logger + # syslog=True if no 'address' field is provided + syslog = getLogger(__name__ + '.1', syslog=True, format=formating) + syslog.info('syslog test') + + # steam logger + stream = getLogger(__name__ + '.2', stream=sys.stdout, level='ERROR') + stream.info('steam test') + + # file logger + filelog = getLogger(__name__ + '.3', filename='/tmp/test') + filelog.info('file test') + + # create a combined logger + getLogger('VyOS', syslog=True, stream=sys.stdout, filename='/tmp/test') + + # recover the created logger from name + combined = getLogger('VyOS') + combined.info('combined test') diff --git a/python/vyos/util.py b/python/vyos/util.py index 3d4f1c42f..4340332d3 100644 --- a/python/vyos/util.py +++ b/python/vyos/util.py @@ -160,11 +160,36 @@ def call(command, flag='', shell=None, input=None, timeout=None, env=None, return code -def read_file(path): - """ Read a file to string """ - with open(path, 'r') as f: - data = f.read().strip() - return data +def read_file(fname, defaultonfailure=None): + """ + read the content of a file, stripping any end characters (space, newlines) + should defaultonfailure be not None, it is returned on failure to read + """ + try: + """ Read a file to string """ + with open(fname, 'r') as f: + data = f.read().strip() + return data + except Exception as e: + if defaultonfailure is not None: + return defaultonfailure + raise e + + +def read_json(fname, defaultonfailure=None): + """ + read and json decode the content of a file + should defaultonfailure be not None, it is returned on failure to read + """ + import json + try: + with open(fname, 'r') as f: + data = json.load(f) + return data + except Exception as e: + if defaultonfailure is not None: + return defaultonfailure + raise e def chown(path, user, group): diff --git a/python/vyos/version.py b/python/vyos/version.py index d51a940d6..a524b36ea 100644 --- a/python/vyos/version.py +++ b/python/vyos/version.py @@ -34,9 +34,17 @@ import json import vyos.defaults +from vyos.util import read_file +from vyos.util import read_json +from vyos.util import popen +from vyos.util import run +from vyos.util import DEVNULL + + version_file = os.path.join(vyos.defaults.directories['data'], 'version.json') -def get_version_data(file=version_file): + +def get_version_data(fname=version_file): """ Get complete version data @@ -52,20 +60,50 @@ def get_version_data(file=version_file): is an implementation detail and may change in the future, while the interface of this module will stay the same. """ - try: - with open(file, 'r') as f: - version_data = json.load(f) - return version_data - except FileNotFoundError: - return {} + return read_json(fname, {}) -def get_version(file=None): + +def get_version(fname=version_file): """ Get the version number, or an empty string if it could not be determined """ - version_data = None - if file: - version_data = get_version_data(file=file) - else: - version_data = get_version_data() - return version_data.get('version','') + return get_version_data(fname=fname).get('version', '') + + +def get_full_version_data(fname=version_file): + version_data = get_version_data(fname) + + # Get system architecture (well, kernel architecture rather) + version_data['system_arch'], _ = popen('uname -m', stderr=DEVNULL) + + # Get hypervisor name, if any + try: + hypervisor, _ = popen('hvinfo', stderr=DEVNULL) + version_data['system_type'] = f"{hypervisor} guest" + except OSError: + # hvinfo returns 1 if it cannot detect any hypervisor + version_data['system_type'] = 'bare metal' + + # Get boot type, it can be livecd, installed image, or, possible, a system installed + # via legacy "install system" mechanism + # In installed images, the squashfs image file is named after its image version, + # while on livecd it's just "filesystem.squashfs", that's how we tell a livecd boot + # from an installed image + boot_via = "installed image" + if run(""" grep -e '^overlay.*/filesystem.squashfs' /proc/mounts >/dev/null""") == 0: + boot_via = "livecd" + elif run(""" grep '^overlay /' /proc/mounts >/dev/null """) != 0: + boot_via = "legacy non-image installation" + version_data['boot_via'] = boot_via + + # Get hardware details from DMI + dmi = '/sys/class/dmi/id' + version_data['hardware_vendor'] = read_file(dmi + '/sys_vendor', 'Unknown') + version_data['hardware_model'] = read_file(dmi +'/product_name','Unknown') + + # These two assume script is run as root, normal users can't access those files + subsystem = '/sys/class/dmi/id/subsystem/id' + version_data['hardware_serial'] = read_file(subsystem + '/product_serial','Unknown') + version_data['hardware_uuid'] = read_file(subsystem + '/product_uuid', 'Unknown') + + return version_data |