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# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the zlib license. See the COPYING file.
from os import environ, makedirs
import os
import re
from datetime import datetime
from config import config
from xhtml import clean_text
from theming import dump_tuple, get_theme
import logging
log = logging.getLogger(__name__)
log_dir = config.get('log_dir', '') or os.path.join(environ.get('XDG_DATA_HOME') or os.path.join(environ.get('HOME'), '.local', 'share'), 'poezio', 'logs')
log_dir = os.path.expanduser(log_dir)
message_log_re = re.compile('MR (\d{4})(\d{2})(\d{2})T(\d{2}):(\d{2}):(\d{2})Z (\d+) <([^ ]+)> (.*)')
info_log_re = re.compile('MI (\d{4})(\d{2})(\d{2})T(\d{2}):(\d{2}):(\d{2})Z (\d+) (.*)')
def parse_message_line(msg):
if re.match(message_log_re, msg):
return [i for i in re.split(message_log_re, msg) if i]
elif re.match(info_log_re, msg):
return [i for i in re.split(info_log_re, msg) if i]
return False
class Logger(object):
"""
Appends things to files. Error/information/warning logs
and also log the conversations to logfiles
"""
def __init__(self):
self.logfile = config.get('logfile', 'logs')
self.roster_logfile = None
# a dict of 'groupchatname': file-object (opened)
self.fds = dict()
def __del__(self):
for opened_file in self.fds.values():
if opened_file:
try:
opened_file.close()
except: # Can't close? too bad
pass
def reload_all(self):
"""Close and reload all the file handles (on SIGHUP)"""
for opened_file in self.fds.values():
if opened_file:
opened_file.close()
log.debug('All log file handles closed')
for room in self.fds:
self.fds[room] = self.check_and_create_log_dir(room)
log.debug('Log handle for %s re-created', room)
def check_and_create_log_dir(self, room):
"""
Check that the directory where we want to log the messages
exists. if not, create it
"""
if config.get_by_tabname('use_log', 'false', room) == 'false':
return
try:
makedirs(log_dir)
except OSError:
pass
try:
fd = open(os.path.join(log_dir, room), 'a')
self.fds[room] = fd
return fd
except IOError:
return
def get_logs(self, jid, nb=10):
"""
Get the log history for the given jid
"""
if config.get_by_tabname('load_log', 10, jid) <= 0:
return
if nb <= 0:
return
try:
fd = open(os.path.join(log_dir, jid), 'rb')
except:
return
if not fd:
return
pos = fd.seek(0, 2)
reads = 0
check_next = False
while reads < nb:
if pos == 0:
break
pos -= 1
if pos < 0:
pos = 0
fd.seek(pos)
char = fd.read(1)
if char == b'\n':
if fd.read(2) in (b'MR', b'MI'):
reads += 1
fd.seek(-2, 1)
logs = fd.readlines()
fd.close()
lines = []
for line in logs:
lines.append(line.decode(errors='replace')[:-1])
log.debug(lines)
messages = []
color = '\x19%s}' % dump_tuple(get_theme().COLOR_INFORMATION_TEXT)
idx = 0
while idx < len(lines):
if lines[idx].startswith(' '): # should not happen ; skip
idx += 1
log.debug('fail?')
continue
tup = parse_message_line(lines[idx])
idx += 1
if not tup or 7 > len(tup) > 10 : # skip
log.debug('format? %s', tup)
continue
time = [int(i) for index, i in enumerate(tup) if index < 6]
message = {'lines': [], 'history': True, 'time': datetime(*time)}
size = int(tup[6])
if len(tup) == 8: #info line
message['lines'].append(color+tup[7])
else: # message line
message['nickname'] = tup[7]
message['lines'].append(color+tup[8])
while size != 0 and idx < len(lines):
message['lines'].append(lines[idx][1:])
size -= 1
idx += 1
message['txt'] = '\n'.join(message['lines'])
del message['lines']
messages.append(message)
return messages
def log_message(self, jid, nick, msg, date=None, typ=1):
"""
log the message in the appropriate jid's file
type: 1 = Message
2 = Status/whatever
"""
jid = str(jid).replace('/', '\\')
if config.get_by_tabname('use_log', 'false', jid) != 'true':
return True
if jid in self.fds.keys():
fd = self.fds[jid]
else:
fd = self.check_and_create_log_dir(jid)
if not fd:
return True
try:
msg = clean_text(msg)
if date is None:
str_time = datetime.now().strftime('%Y%m%dT%H:%M:%SZ')
else:
str_time = date.strftime('%Y%m%dT%H:%M:%SZ')
if typ == 1:
prefix = 'MR'
else:
prefix = 'MI'
lines = msg.split('\n')
first_line = lines.pop(0)
nb_lines = str(len(lines)).zfill(3)
for line in lines:
self.roster_logfile.write(' %s\n' % line)
if nick:
nick = '<' + nick + '>'
fd.write(' '.join((prefix, str_time, nb_lines, nick, ' '+first_line, '\n')))
else:
fd.write(' '.join((prefix, str_time, nb_lines, first_line, '\n')))
for line in lines:
fd.write(' %s\n' % line)
except:
return False
else:
try:
fd.flush() # TODO do something better here?
except:
return False
return True
def log_roster_change(self, jid, message):
"""
Log a roster change
"""
if config.get_by_tabname('use_log', 'false', jid) != 'true':
return True
if not self.roster_logfile:
try:
self.roster_logfile = open(os.path.join(log_dir, 'roster.log'), 'a')
except IOError:
return False
try:
str_time = datetime.now().strftime('%Y%m%dT%H:%M:%SZ')
message = clean_text(message)
lines = message.split('\n')
first_line = lines.pop(0)
nb_lines = str(len(lines)).zfill(3)
self.roster_logfile.write('MI %s %s %s %s\n' % (str_time, nb_lines, jid, first_line))
for line in lines:
self.roster_logfile.write(' %s\n' % line)
self.roster_logfile.flush()
except:
return False
return True
logger = Logger()
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