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323 lines
10 KiB
Python
323 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# BSD 2-Clause License
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#
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# Apprise - Push Notification Library.
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# Copyright (c) 2024, Chris Caron <lead2gold@gmail.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import syslog
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from .base import NotifyBase
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from ..common import NotifyType
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from ..utils import parse_bool
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from ..locale import gettext_lazy as _
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class SyslogFacility:
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"""
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All of the supported facilities
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"""
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KERN = 'kern'
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USER = 'user'
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MAIL = 'mail'
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DAEMON = 'daemon'
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AUTH = 'auth'
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SYSLOG = 'syslog'
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LPR = 'lpr'
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NEWS = 'news'
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UUCP = 'uucp'
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CRON = 'cron'
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LOCAL0 = 'local0'
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LOCAL1 = 'local1'
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LOCAL2 = 'local2'
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LOCAL3 = 'local3'
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LOCAL4 = 'local4'
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LOCAL5 = 'local5'
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LOCAL6 = 'local6'
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LOCAL7 = 'local7'
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SYSLOG_FACILITY_MAP = {
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SyslogFacility.KERN: syslog.LOG_KERN,
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SyslogFacility.USER: syslog.LOG_USER,
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SyslogFacility.MAIL: syslog.LOG_MAIL,
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SyslogFacility.DAEMON: syslog.LOG_DAEMON,
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SyslogFacility.AUTH: syslog.LOG_AUTH,
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SyslogFacility.SYSLOG: syslog.LOG_SYSLOG,
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SyslogFacility.LPR: syslog.LOG_LPR,
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SyslogFacility.NEWS: syslog.LOG_NEWS,
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SyslogFacility.UUCP: syslog.LOG_UUCP,
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SyslogFacility.CRON: syslog.LOG_CRON,
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SyslogFacility.LOCAL0: syslog.LOG_LOCAL0,
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SyslogFacility.LOCAL1: syslog.LOG_LOCAL1,
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SyslogFacility.LOCAL2: syslog.LOG_LOCAL2,
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SyslogFacility.LOCAL3: syslog.LOG_LOCAL3,
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SyslogFacility.LOCAL4: syslog.LOG_LOCAL4,
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SyslogFacility.LOCAL5: syslog.LOG_LOCAL5,
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SyslogFacility.LOCAL6: syslog.LOG_LOCAL6,
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SyslogFacility.LOCAL7: syslog.LOG_LOCAL7,
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}
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SYSLOG_FACILITY_RMAP = {
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syslog.LOG_KERN: SyslogFacility.KERN,
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syslog.LOG_USER: SyslogFacility.USER,
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syslog.LOG_MAIL: SyslogFacility.MAIL,
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syslog.LOG_DAEMON: SyslogFacility.DAEMON,
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syslog.LOG_AUTH: SyslogFacility.AUTH,
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syslog.LOG_SYSLOG: SyslogFacility.SYSLOG,
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syslog.LOG_LPR: SyslogFacility.LPR,
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syslog.LOG_NEWS: SyslogFacility.NEWS,
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syslog.LOG_UUCP: SyslogFacility.UUCP,
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syslog.LOG_CRON: SyslogFacility.CRON,
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syslog.LOG_LOCAL0: SyslogFacility.LOCAL0,
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syslog.LOG_LOCAL1: SyslogFacility.LOCAL1,
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syslog.LOG_LOCAL2: SyslogFacility.LOCAL2,
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syslog.LOG_LOCAL3: SyslogFacility.LOCAL3,
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syslog.LOG_LOCAL4: SyslogFacility.LOCAL4,
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syslog.LOG_LOCAL5: SyslogFacility.LOCAL5,
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syslog.LOG_LOCAL6: SyslogFacility.LOCAL6,
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syslog.LOG_LOCAL7: SyslogFacility.LOCAL7,
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}
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# Used as a lookup when handling the Apprise -> Syslog Mapping
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SYSLOG_PUBLISH_MAP = {
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NotifyType.INFO: syslog.LOG_INFO,
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NotifyType.SUCCESS: syslog.LOG_NOTICE,
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NotifyType.FAILURE: syslog.LOG_CRIT,
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NotifyType.WARNING: syslog.LOG_WARNING,
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}
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class NotifySyslog(NotifyBase):
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"""
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A wrapper for Syslog Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Syslog'
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# The services URL
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service_url = 'https://tools.ietf.org/html/rfc5424'
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# The default protocol
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protocol = 'syslog'
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_syslog'
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# Disable throttle rate for Syslog requests since they are normally
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# local anyway
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request_rate_per_sec = 0
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# Define object templates
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templates = (
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'{schema}://',
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'{schema}://{facility}',
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)
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# Define our template tokens
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template_tokens = dict(NotifyBase.template_tokens, **{
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'facility': {
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'name': _('Facility'),
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'type': 'choice:string',
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'values': [k for k in SYSLOG_FACILITY_MAP.keys()],
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'default': SyslogFacility.USER,
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},
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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'facility': {
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# We map back to the same element defined in template_tokens
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'alias_of': 'facility',
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},
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'logpid': {
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'name': _('Log PID'),
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'type': 'bool',
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'default': True,
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'map_to': 'log_pid',
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},
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'logperror': {
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'name': _('Log to STDERR'),
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'type': 'bool',
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'default': False,
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'map_to': 'log_perror',
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},
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})
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def __init__(self, facility=None, log_pid=True, log_perror=False,
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**kwargs):
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"""
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Initialize Syslog Object
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"""
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super().__init__(**kwargs)
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if facility:
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try:
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self.facility = SYSLOG_FACILITY_MAP[facility]
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except KeyError:
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msg = 'An invalid syslog facility ' \
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'({}) was specified.'.format(facility)
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self.logger.warning(msg)
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raise TypeError(msg)
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else:
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self.facility = \
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SYSLOG_FACILITY_MAP[
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self.template_tokens['facility']['default']]
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# Logging Options
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self.logoptions = 0
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# Include PID with each message.
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# This may not appear evident if using journalctl since the pid
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# will always display itself; however it will appear visible
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# for log_perror combinations
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self.log_pid = log_pid
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# Print to stderr as well.
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self.log_perror = log_perror
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if log_pid:
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self.logoptions |= syslog.LOG_PID
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if log_perror:
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self.logoptions |= syslog.LOG_PERROR
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# Initialize our logging
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syslog.openlog(
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self.app_id, logoption=self.logoptions, facility=self.facility)
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return
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Syslog Notification
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"""
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SYSLOG_PUBLISH_MAP = {
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NotifyType.INFO: syslog.LOG_INFO,
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NotifyType.SUCCESS: syslog.LOG_NOTICE,
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NotifyType.FAILURE: syslog.LOG_CRIT,
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NotifyType.WARNING: syslog.LOG_WARNING,
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}
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if title:
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# Format title
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body = '{}: {}'.format(title, body)
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# Always call throttle before any remote server i/o is made
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self.throttle()
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try:
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syslog.syslog(SYSLOG_PUBLISH_MAP[notify_type], body)
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except KeyError:
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# An invalid notification type was specified
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self.logger.warning(
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'An invalid notification type '
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'({}) was specified.'.format(notify_type))
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return False
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self.logger.info('Sent Syslog notification.')
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return True
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def url(self, privacy=False, *args, **kwargs):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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# Define any URL parameters
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params = {
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'logperror': 'yes' if self.log_perror else 'no',
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'logpid': 'yes' if self.log_pid else 'no',
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}
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# Extend our parameters
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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return '{schema}://{facility}/?{params}'.format(
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facility=self.template_tokens['facility']['default']
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if self.facility not in SYSLOG_FACILITY_RMAP
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else SYSLOG_FACILITY_RMAP[self.facility],
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schema=self.protocol,
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params=NotifySyslog.urlencode(params),
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)
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@staticmethod
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def parse_url(url):
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"""
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Parses the URL and returns enough arguments that can allow
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us to re-instantiate this object.
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"""
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results = NotifyBase.parse_url(url, verify_host=False)
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if not results:
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# We're done early as we couldn't load the results
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return results
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tokens = []
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if results['host']:
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tokens.append(NotifySyslog.unquote(results['host']))
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# Get our path values
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tokens.extend(NotifySyslog.split_path(results['fullpath']))
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# Initialization
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facility = None
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if tokens:
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# Store the last entry as the facility
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facility = tokens[-1].lower()
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# However if specified on the URL, that will over-ride what was
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# identified
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if 'facility' in results['qsd'] and len(results['qsd']['facility']):
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facility = results['qsd']['facility'].lower()
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if facility and facility not in SYSLOG_FACILITY_MAP:
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# Find first match; if no match is found we set the result
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# to the matching key. This allows us to throw a TypeError
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# during the __init__() call. The benifit of doing this
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# check here is if we do have a valid match, we can support
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# short form matches like 'u' which will match against user
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facility = next((f for f in SYSLOG_FACILITY_MAP.keys()
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if f.startswith(facility)), facility)
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# Save facility if set
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if facility:
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results['facility'] = facility
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# Include PID as part of the message logged
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results['log_pid'] = parse_bool(
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results['qsd'].get(
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'logpid',
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NotifySyslog.template_args['logpid']['default']))
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# Print to stderr as well.
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results['log_perror'] = parse_bool(
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results['qsd'].get(
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'logperror',
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NotifySyslog.template_args['logperror']['default']))
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return results
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