plexpy/plexpy/log_reader.py
JonnyWong16 cb8a5504f6 Cleanup unused modules and imports
* Ran code through PyFlakes
2016-05-15 11:32:11 -07:00

99 lines
3.0 KiB
Python

# This file is part of PlexPy.
#
# PlexPy is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# PlexPy 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with PlexPy. If not, see <http://www.gnu.org/licenses/>.
import os
import plexpy
import helpers
import logger
def get_log_tail(window=20, parsed=True, log_type="server"):
if plexpy.CONFIG.PMS_LOGS_FOLDER:
log_file = ""
if log_type == "server":
log_file = os.path.join(plexpy.CONFIG.PMS_LOGS_FOLDER, 'Plex Media Server.log')
elif log_type == "scanner":
log_file = os.path.join(plexpy.CONFIG.PMS_LOGS_FOLDER, 'Plex Media Scanner.log')
else:
return []
try:
logfile = open(log_file, "r")
except IOError as e:
logger.error('Unable to open Plex Log file. %s' % e)
return []
log_lines = tail(logfile, window)
if parsed:
line_error = False
clean_lines = []
for i in log_lines:
try:
i = helpers.latinToAscii(i)
log_time = i.split(' [')[0]
log_level = i.split('] ', 1)[1].split(' - ',1)[0]
log_msg = i.split('] ', 1)[1].split(' - ',1)[1]
full_line = [log_time, log_level, log_msg]
clean_lines.append(full_line)
except:
line_error = True
full_line = ['', '', 'Unable to parse log line.']
clean_lines.append(full_line)
if line_error:
logger.error('PlexPy was unable to parse some lines of the Plex Media Server log.')
return clean_lines
else:
raw_lines = []
for i in log_lines:
raw_lines.append(helpers.latinToAscii(i))
return raw_lines
return log_lines
# http://stackoverflow.com/a/13790289/2405162
def tail(f, lines=1, _buffer=4098):
"""Tail a file and get X lines from the end"""
# place holder for the lines found
lines_found = []
# block counter will be multiplied by buffer
# to get the block size from the end
block_counter = -1
# loop until we find X lines
while len(lines_found) < lines:
try:
f.seek(block_counter * _buffer, os.SEEK_END)
except IOError: # either file is too small, or too many lines requested
f.seek(0)
lines_found = f.readlines()
break
lines_found = f.readlines()
# we found enough lines, get out
if len(lines_found) > lines:
break
# decrement the block counter to get the
# next X bytes
block_counter -= 1
return lines_found[-lines:]