#!/usr/bin/env python
from optparse import OptionParser, Option
import time, sys
__cmdParser__ = OptionParser()
__cmdParser__.add_option("-i", "--logfile", action="append", \
dest="logfiles", type="string", \
help="system log to parse")
__cmdParser__.add_option("-v", "--verbose", action="count", \
dest="verbosity", \
help="How obnoxious we're being about telling the user what we're doing.")
(__cmdLineOpts__, __cmdLineArgs__)=__cmdParser__.parse_args()
class logfile_class:
def __init__(self,fname):
self.events = []
self.curline = ""
self.prevline = ""
self.eof = False
self.hostname = ""
self.fname = fname
self.fp = open(fname)
first_line = self.fp.readline().strip()
multip = 1
readblock = 64
while True:
self.fp.seek(-readblock * multip,2)
newlnpos = self.fp.read(readblock).find("\n")
if newlnpos > 0 and newlnpos < readblock - 1:
self.fp.seek(-readblock * multip + newlnpos +1, 2)
break
multip+=1
last_line = self.fp.readline().strip()
self.fp.seek(0)
# let's convert the first and last timestamp to something useful
# Jul 22 04:48:05
self.time_begin = time.strptime(first_line[0:15], "%b %d %H:%M:%S")
self.time_end = time.strptime( last_line[0:15], "%b %d %H:%M:%S")
# FIXME: check that first_line < last_line
def readline(self):
self.curline_pos = self.fp.tell()
self.prevline = self.curline
self.curline = self.fp.readline().strip()
if len(self.curline) == 0:
self.eof = True
return self.curline
def seek(self,pos):
self.fp.seek(pos)
self.eof = False
self.curline = ""
def parse(self):
self.seek(0)
while not self.eof:
self.readline()
self.parse_line()
self.seek(0)
def curmessage(self):
return self.curline[17 + self.curline[16:].find(" "):]
def parse_line(self):
# is valid log line ?
if not self.time_current():
return
# store hostname, if we don't already have it
if len(self.hostname) == 0:
self.curline.split()[3]
# system is booting
if self.curmessage().startswith("Linux version"):
self.add_event("system boot")
# hostname has changed
if len(self.hostname) and self.hostname != self.curline.split()[3]:
self.add_event("hostname changed")
self.hostname = self.curline.split()[3]
# the clock is wrong wrong
if self.prevline and time.strptime(self.prevline[0:15], "%b %d %H:%M:%S") > self.time_current():
self.add_event("clock is fucked up")
def add_event(self, message):
self.events.append( (self.curline_pos,len(self.curline),message) )
def time_current(self):
if len(self.curline) == 0: return None
try:
return time.strptime(self.curline[0:15], "%b %d %H:%M:%S")
except ValueError:
print "could not parse time", self.curline
return False
logs = []
for logname in __cmdLineOpts__.logfiles:
log = logfile_class(logname)
log.parse()
logs.append(log)
print """<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>HTMLogs output</TITLE>
<style type="text/css">
body {
background: #FFF;
color: #000;
font: normal normal 12px Verdana, Geneva, Arial, Helvetica, sans-serif;
margin: 10px;
padding: 0
}
table, td, a {
color: #000;
font: normal normal 12px Verdana, Geneva, Arial, Helvetica, sans-serif
}
/* make the TH elements pretty */
thead.fixedHeader th {
background: #C96;
border-left: 1px solid #EB8;
border-right: 1px solid #B74;
border-top: 1px solid #EB8;
font-weight: normal;
padding: 4px 3px;
text-align: left
}
/* make the A elements pretty. makes for nice clickable headers */
thead.fixedHeader a, thead.fixedHeader a:link, thead.fixedHeader a:visited {
color: #FFF;
display: block;
text-decoration: none;
width: 100%
}
/* make the A elements pretty. makes for nice clickable headers */
/* WARNING: swapping the background on hover may cause problems in WinIE 6.x */
thead.fixedHeader a:hover {
color: #FFF;
display: block;
text-decoration: underline;
width: 100%
}
ul#toc {list-style:none;width:320px;}
#toc li {background:url(dot.gif) repeat-x 0 0.85em;}
#toc li a {float:left;background:#FFF;padding: 0 4px 0 0;}
#toc li span {float:right;background:#FFF; padding 0 0 0 4px;}
#toc li br {clear:both;}
-->
</style>
</HEAD>
<BODY>
"""
print '<ul id="toc">'
for log in logs:
# print logs[idx].fname, logs[idx].events
for line, msglen, event in log.events:
print ' <li><span>%s</span> <a href="#">Link</a><br /></li>' % event
print '</ul>'
print "<TABLE>"
while True:
# who is next ?
lowest_date = None
for log in logs:
if log.eof:
continue
if not len(log.curline):
log.readline()
if lowest_date == None or log.time_current() < lowest_date:
lowest_date = log.time_current()
if lowest_date == None:
# all logs are EOF
break
print " <TR>"
# FIXME: if this tick has an event, add <a name="...">
print ' <TD STYLE="white-space:nowrap">' + time.strftime("%b %d %H:%M:%S", lowest_date) + "</TD>"
for log in logs:
if log.time_current() == lowest_date:
print " <TD>" + log.curmessage() + "</TD>"
log.curline = ""
else:
print " <TD></TD>"
# print log.curline_pos, time.strftime("%b %d %H:%M:%S", log.time_current()), log.curmessage()
print " </TR>"
print "<TABLE>"
