Andrew's git - logparse.git/blob - logparse/interface.py

   1#
   2#   __main__.py
   3#
   4#   This module is the entrypoint of the `logparse` shell command and also
   5#   contains single-use functions which don't fit elsewhere.
   6#
   7
   8import logging, logging.handlers
   9import argparse
  10import os
  11import glob
  12import sys
  13from datetime import datetime
  14
  15import logparse
  16from . import config
  17from logparse import formatting, mail
  18from .parsers import load_parsers, sudo, sshd, cron, httpd, smbd, postfix, zfs, temperature
  19
  20def rotate():   
  21    # rotate logs using systemd logrotate
  22    if parser.parse_args().function is None:
  23        if (config.prefs['rotate'] == 'y'):
  24            subprocess.call("/usr/sbin/logrotate -f /etc/logrotate.conf", shell=True)
  25            logger.info("rotated logfiles")
  26        else:
  27            logger.debug("user doesn't want to rotate logs")
  28            if (config.prefs['rotate'] == 's'):
  29                logger.debug("Here is the output of `logrotate -d /etc/logrotate.conf` (simulated):")
  30                sim = subprocess.check_output("/usr/sbin/logrotate -d /etc/logrotate.conf", shell=True)
  31                logger.debug(sim)
  32
  33
  34
  35def main():
  36    # Get arguments
  37    parser = argparse.ArgumentParser(description='grab logs of some common services and send them by email')
  38    parser.add_argument('-t','--to', help='mail recipient (\"to\" address)', required=False)
  39    parser.add_argument('-c', '--config', help='path to config file', required=False)
  40    parser.add_argument('-p', '--print', help='print HTML to stdout', required=False, dest='printout', action='store_true', default=False)
  41    parser.add_argument('-d', '--destination', help='file to output HTML', required=False)
  42    parser.add_argument('-f', '--overwrite', help='force overwrite an existing output file', required=False, action='store_true', default=False)
  43    parser.add_argument('-v', '--verbose', help='verbose console/syslog output (for debugging)', required=False, default=False, action='store_true')
  44    parser.add_argument('-r', '--rotate', help='force rotate log files using systemd logrotate', required=False, default=False, action='store_true')
  45    parser.add_argument('-nr', '--no-rotate', help='do not rotate logfiles (overrides logparse.conf)', required=False, default=False, action='store_true')
  46    parser.add_argument('-l', '--logs', help='services to analyse', required=False)
  47
  48    # Set up logging
  49    logger = logging.getLogger(__name__)
  50    loghandler = logging.handlers.SysLogHandler(address = '/dev/log')
  51    loghandler.setFormatter(logging.Formatter(fmt='logparse.py[' + str(os.getpid()) + ']: %(message)s'))
  52    loghandler.setLevel(logging.WARNING)   # don't spam syslog with debug messages
  53    if parser.parse_args().verbose:
  54        print("Verbose mode is on")
  55        logging.basicConfig(level=logging.DEBUG)
  56        logger.debug("Verbose mode turned on")
  57    else:
  58        logging.basicConfig(level=logging.INFO)
  59    logger.addHandler(loghandler)
  60
  61    # Load config
  62    if parser.parse_args().config or config.prefs['verbose']:
  63        config.prefs = config.loadconf(parser.parse_args().config, parser)
  64    else:
  65        config.prefs = config.loadconf(argparser=parser)
  66    logger.debug("Finished loading config")
  67
  68    # Time analysis
  69    global start
  70    start = datetime.now()
  71    logger.info("Beginning log analysis at {0} {1}".format(start.strftime(formatting.DATEFMT), start.strftime(formatting.TIMEFMT)))
  72    logger.debug("This is {0} version {1}, running on Python {2}".format(logparse.__name__, logparse.__version__, sys.version))
  73     
  74#    for l in parser.parse_args().logs.split(' '):
  75#        eval(l)
  76#        sys.exit()
  77
  78#    print(load_parsers.search());
  79    # Write HTML document
  80    global output_html
  81    output_html = formatting.header(config.prefs['header'])
  82    output_html += sudo.parse_log()
  83    output_html += sshd.parse_log()
  84    output_html += cron.parse_log()
  85    output_html += httpd.parse_log()
  86    output_html += smbd.parse_log()
  87    output_html += postfix.parse_log()
  88    output_html += zfs.parse_log()
  89    output_html += temperature.parse_log()
  90    output_html += formatting.closetag('body') + formatting.closetag('html')
  91    if parser.parse_args().printout:
  92        print(output_html)
  93    if parser.parse_args().destination:
  94        logger.debug("Outputting to {0}".format(parser.parse_args().destination))
  95        if not os.path.isfile(parser.parse_args().destination) and not parser.parse_args().overwrite:
  96            with open(parser.parse_args().destination, 'w') as f:
  97                f.write(output_html)
  98                logger.info("Written output to {}".format(parser.parse_args().destination))
  99        else:
 100            logger.warning("Destination file already exists")
 101            if input("Would you like to overwrite {0}? (y/n) [n] ".format(parser.parse_args().destination)) == 'y':
 102                with open(parser.parse_args().destination, 'w') as f:
 103                    f.write(output_html)
 104                logger.debug("Written output to {}".format(parser.parse_args().destination))
 105            else:
 106                logger.warning("No output written")
 107
 108    if parser.parse_args().to:
 109       mail.sendmail(mailbin=config.prefs['mail']['mailbin'], body=output_html, recipient=parser.parse_args().to, subject="logparse test")
 110    
 111    # Print end message
 112    finish = datetime.now()
 113    logger.info("Finished parsing logs at {0} {1} (total time: {2})".format(finish.strftime(formatting.DATEFMT), finish.strftime(formatting.TIMEFMT), finish - start))
 114
 115    return