py.lib

Yohn Y. 2022-08-05 Parent:fe4a96d06243

31:4186c3b229fa Go to Latest

py.lib/log/slog_syslogger.py

+ Модуль работы с датаклассами и их наполнения из ORM + Утилиты Bottle + Утилиты JWT + Помошник в парсинге конфигурационных файлов

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1 # coding: utf-8
2
3 """\
4 Логирование в системный журнал Unix
5
6 Метки в журнале о уровне сообщения:
7 "`": Debug
8 ".": Info
9 "*": Warning
10 "!": Error
11 "#": Alert
12 """
13
14 import syslog
15 from sys import exc_info
16 from time import monotonic
17 from traceback import extract_tb, extract_stack
18 from datetime import timedelta
19 from typing import Any
20
21 LOG_FACILITY = {
22 'auth': syslog.LOG_AUTH,
23 'authpriv': syslog.LOG_AUTH,
24 'cron': syslog.LOG_CRON,
25 'daemon': syslog.LOG_DAEMON,
26 'ftp': syslog.LOG_DAEMON,
27 'kern': syslog.LOG_KERN,
28 'lpr': syslog.LOG_LPR,
29 'mail': syslog.LOG_MAIL,
30 'news': syslog.LOG_NEWS,
31 'syslog': syslog.LOG_SYSLOG,
32 'user': syslog.LOG_USER,
33 'uucp': syslog.LOG_UUCP,
34 'local0': syslog.LOG_LOCAL0,
35 'local1': syslog.LOG_LOCAL1,
36 'local2': syslog.LOG_LOCAL2,
37 'local3': syslog.LOG_LOCAL3,
38 'local4': syslog.LOG_LOCAL4,
39 'local5': syslog.LOG_LOCAL5,
40 'local6': syslog.LOG_LOCAL6,
41 'local7': syslog.LOG_LOCAL7
42 }
43
44
45 class LoggerError(Exception): pass
46
47
48 # --- INTERFACE --- #
49 FACILITY = LOG_FACILITY['user']
50
51
52 def check_facility(facility: str = 'user'):
53 if not facility.lower() in LOG_FACILITY:
54 raise LoggerError(f'Unknown facility: {facility}')
55
56
57 def log_prep(ident: str, facility: str = 'user'):
58 global FACILITY
59 check_facility(facility)
60
61 syslog.openlog(ident, syslog.LOG_PID)
62
63 FACILITY = LOG_FACILITY[facility]
64
65
66 class Timing(object):
67 def __init__(self, name: str = None):
68 if name is None:
69 self.prefix = ''
70 else:
71 self.prefix = f'{name} :: '
72 self.tsAll = monotonic()
73 self.ts = self.tsAll
74
75 def get_time(self):
76 return monotonic() - self.ts
77
78 def reset(self):
79 self.ts = monotonic()
80 self.tsAll = self.ts
81
82 def __str__(self):
83 ts = monotonic()
84 return self.prefix + '%s(%.4f)' % (timedelta(seconds=(ts - self.tsAll)), ts - self.ts)
85
86 def __call__(self, msg: Any) -> str:
87 _buf = f'{self} | {msg}'
88 self.ts = monotonic()
89 return _buf
90
91
92 class SysLogger(object):
93 init_log = log_prep
94
95 @staticmethod
96 def get_timing(name: str = None):
97 return Timing(name)
98
99 def __init__(self, prefix: str = 'main', facility: int = FACILITY):
100 self.prefix = str(prefix)
101 self.facility = facility
102
103 def _write(self, flag: int, mark: str, msg: Any):
104 for l in str(msg).splitlines():
105 syslog.syslog(self.facility | flag, f'{mark} {self.prefix}: {l}')
106
107 def __call__(self, msg: Any):
108 self._write(syslog.LOG_INFO, '.', msg)
109
110 def err(self, msg: Any):
111 self._write(syslog.LOG_ERR, '!', msg)
112
113 def warn(self, msg: Any):
114 self._write(syslog.LOG_WARNING, '*', msg)
115
116 def debug(self, msg: Any):
117 self._write(syslog.LOG_DEBUG, '`', msg)
118
119 def alert(self, msg: Any):
120 self._write(syslog.LOG_ALERT, '#', msg)
121
122 def sublog(self, prefix: str):
123 return self.__class__(f'{self.prefix}/{prefix}', self.facility)
124
125 def excpt(self, msg: Any, e_class: type = None, e_obj: Exception = None, e_tb=None, stack_skip=0):
126 if e_class is None:
127 e_class, e_obj, e_tb = exc_info()
128
129 if e_class is None:
130 # Если вдруг вызываем без произошедшего исключения
131 self.err(msg)
132 else:
133 tb_data_tb = list(extract_tb(e_tb))[::-1]
134 tb_data_stack = list(extract_stack())[::-1][(2 + stack_skip):]
135
136 self.err(msg)
137
138 self.err('--- EXCEPTION ---')
139 self.err(' %s (%s)' % (e_class.__name__, e_obj))
140
141 self.err('--- TRACEBACK ---')
142 for _tb_file, _tb_line, _tb_func, _tb_text in tb_data_tb:
143 self.err('File: %s, line %s in %s' % (_tb_file, _tb_line, _tb_func))
144 self.err(' %s' % _tb_text)
145
146 self.err('>>> Exception Handler <<<')
147 for _tb_file, _tb_line, _tb_func, _tb_text in tb_data_stack:
148 self.err('File: %s, line %s in %s' % (_tb_file, _tb_line, _tb_func))
149 self.err(' %s' % _tb_text)
150
151 self.err('--- END EXCEPTION ---')