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apache-logparser
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Add features (field order, verbose output, head, tail, sort logs by)

master
Pekka Helenius 2 years ago
parent
0afea1608a
commit
e4f4f6779e
1 changed files with 392 additions and 121 deletions
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      apache-logparser/logparser.py

+ 392
- 121
apache-logparser/logparser.py View File

@ -18,8 +18,9 @@
################################################################
# TODO prev_host: instead of comparing to previous entry, check if such IP has been seen in XXX seconds
# TODO: prev_host: instead of comparing to previous entry, check if such IP has been seen in XXX seconds
# TODO: store IP values for temporary list for XXX seconds, and check list values
# TODO: implement warning check for geoiplookup tool database files, i.e. "warning, some geo database files are very old. Please consider updating geo database information."
import argparse
import os
@ -29,31 +30,51 @@ import subprocess
from datetime import datetime
from apachelogs import LogParser, InvalidEntryError
class text_processing(object):
"""
Init
"""
def __init__(self, verbose):
self.show_verbose = verbose
"""
Verbose output format (we do not use logger library)
"""
def print_verbose(self, prefix='output', *args):
if self.show_verbose:
print('VERBOSE [{:s}]: {:s}'.format(prefix, ', '.join([str(i) for i in args])))
class program(object):
"""
Init
"""
def __init__(self):
self.get_args()
self.args = self.get_args()
# Exclude private IP address classes from geo lookup process
# Strip out %I and %O flags from Apache log format
# 127.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16
self.private_class_ip_networks = ['^127\.', '^172\.[1[6-9]|2[0-9]|3[0-1]]\.', '^192\.168\.']
self.private_class_ip_networks = ['^127\.', '^172\.(1[6-9]{1}|2[0-9]{1}|3[0-1]{1})\.', '^192\.168\.']
self.txt = text_processing(verbose = self.args.verbose)
"""
Define & get output fields
"""
def get_out_fields(self):
out_fields = {
'log_file_name': {'data': None, 'format': '{:s}', 'included': False, 'human_name': 'Log file name'},
'http_status': {'data': None, 'format': '{:3s}', 'included': True, 'human_name': 'Status'},
'remote_host': {'data': None, 'format': '{:15s}', 'included': True, 'human_name': 'Remote IP'},
'country': {'data': None, 'format': '{:20s}', 'included': False, 'human_name': 'Country'},
'city': {'data': None, 'format': '{:15s}', 'included': False, 'human_name': 'City'},
'time': {'data': None, 'format': '{:20s}', 'included': True, 'human_name': 'Date/Time'},
'time_diff': {'data': None, 'format': '{:8s}', 'included': True, 'human_name': 'Time diff'},
'user_agent': {'data': None, 'format': '{:s}', 'included': True, 'human_name': 'User agent'},
'http_request': {'data': None, 'format': '{:s}', 'included': True, 'human_name': 'Request'}
'log_file_name': {'data': None, 'format': '{:s}', 'included': False, 'human_name': 'Log file name', 'sort_index': 0},
'http_status': {'data': None, 'format': '{:3s}', 'included': True, 'human_name': 'Status', 'sort_index': 1},
'remote_host': {'data': None, 'format': '{:15s}', 'included': True, 'human_name': 'Remote IP', 'sort_index': 2},
'country': {'data': None, 'format': '{:20s}', 'included': False, 'human_name': 'Country', 'sort_index': 3},
'city': {'data': None, 'format': '{:15s}', 'included': False, 'human_name': 'City', 'sort_index': 4},
'time': {'data': None, 'format': '{:20s}', 'included': True, 'human_name': 'Date/Time', 'sort_index': 5},
'time_diff': {'data': None, 'format': '{:8s}', 'included': True, 'human_name': 'Time diff', 'sort_index': 6},
'user_agent': {'data': None, 'format': '{:s}', 'included': True, 'human_name': 'User agent', 'sort_index': 7},
'http_request': {'data': None, 'format': '{:s}', 'included': True, 'human_name': 'Request', 'sort_index': 8}
}
return out_fields
@ -112,7 +133,7 @@ class program(object):
nargs = '?',
dest = 'incl_fields',
type = lambda x: [i for i in x.split(',')],
default = ', '.join(incl_fields)
default = ','.join(incl_fields)
)
argparser.add_argument(
'-ef', '--excluded-fields',
@ -161,7 +182,7 @@ class program(object):
dest = 'sortby_field'
)
argparser.add_argument(
'-ro', '--reverse-order',
'-ro', '--reverse',
help = 'Sort in reverse order.',
dest = 'sortby_reverse',
action = 'store_true'
@ -199,7 +220,7 @@ class program(object):
required = False
)
argparser.add_argument(
'-ph', '--print-headers',
'-ph', '--print-header',
help = 'Print column headers.',
dest = 'column_headers',
required = False,
@ -213,6 +234,37 @@ class program(object):
default = 'table',
choices = ['table', 'csv']
)
argparser.add_argument(
'--head',
help = 'Read first N lines from all log entries.',
dest = 'read_first_lines_num',
required = False,
nargs = '?',
type = int
)
argparser.add_argument(
'--tail',
help = 'Read last N lines from all log entries.',
dest = 'read_last_lines_num',
required = False,
nargs = '?',
type = int
)
argparser.add_argument(
'--sort-logs-by',
help = 'Sorting order for input log files.',
dest = 'sort_logs_by_info',
required = False,
default = 'name',
choices = ['date', 'size', 'name']
)
argparser.add_argument(
'--verbose',
help = 'Verbose output.',
dest = 'verbose',
required = False,
action = 'store_true'
)
args = argparser.parse_args()
return args
@ -266,12 +318,14 @@ class program(object):
if not code_appended:
codes.append((user_code, validated))
self.txt.print_verbose('Available status codes', codes)
return codes
"""
Get log file list
"""
def get_files(self, files_regex=None, files_list=None):
def get_files(self, files_regex = None, files_list = None):
files = []
@ -298,6 +352,8 @@ class program(object):
raise Exception("No matching files found.")
files.sort()
self.txt.print_verbose('Input files', files)
return files
"""
@ -314,16 +370,18 @@ class program(object):
break
if os.access(file_path, eval(flag)):
return True
self.txt.print_verbose('File check', file_path, 'flags: ' + flag)
return True
return False
"""
Get Apache HTTPD LogFormat directive syntax
"""
def get_httpd_logformat_directive(self, cfile, tag=None):
def get_httpd_logformat_directive(self, cfile, tag = None):
try:
log_format = None
self.txt.print_verbose('Apache configuration file', cfile)
with open(cfile, 'r') as f:
for line in f:
if re.search('^[ ]+LogFormat ".*' + tag, line):
@ -331,6 +389,7 @@ class program(object):
log_format = r.groups()[0].replace('\\', '')
break
f.close()
self.txt.print_verbose('Log format', log_format)
return log_format
except:
@ -339,7 +398,7 @@ class program(object):
"""
Geotool processing
"""
def geotool_get_data(self, geotool_exec, database_file, remote_host):
def geotool_get_data(self, geotool_ok, geotool_exec, database_file, remote_host):
host_country = None
host_city = None
@ -352,7 +411,7 @@ class program(object):
'host_city': host_city
}
if self.check_file(geotool_exec, "os.X_OK", "PATH") and self.check_file(database_file, "os.R_OK"):
if geotool_ok:
host_country_main = subprocess.check_output([geotool_exec,'-d', database_file, remote_host]).rstrip().decode()
host_country_main = host_country_main.split('\n')
@ -424,25 +483,186 @@ class program(object):
return skip_line
"""
Get total number of lines in files
Get lines to be processed from input files and min/max input
min and max work much like Unix tools 'head' and 'tail'
Only a single value (min or max) is allowed
"""
def get_file_line_count(self, sfiles):
lines_in_files = []
def get_file_lines_head_tail(self, sfiles, line_range_min = None, line_range_max = None, files_order = None):
files_and_lines = {'files': [], 'lines_total': 0, 'range_min': 0, 'range_max': 0}
files_tmp = []
lines_count = 0
line_start = 0
line_end = 0
if line_range_min and line_range_max:
raise Exception("Either first or last line limit can be used, not both.")
if files_order is None:
raise Exception("Sorting order for input files missing.")
if line_range_min is not None:
if line_range_min < 0:
line_range_min = None
if line_range_max is not None:
if line_range_max < 0:
line_range_max = None
for sfile in sfiles:
try:
with open(sfile, 'r') as f:
line_count = len(list(f))
f.close()
lines_in_files.append({
'file': str(sfile),
'lines': int(line_count)
files_tmp.append({
'file': str(sfile),
'modified_date': os.path.getmtime(sfile),
'size': os.path.getsize(sfile),
'line_count': line_count
})
except:
raise Exception("Couldn't read input file " + sfile)
if files_order == 'date':
files_tmp.sort(key = lambda d: d['modified_date'])
elif files_order == 'size':
files_tmp.sort(key = lambda d: d['size'])
elif files_order == 'name':
files_tmp.sort(key = lambda d: d['file'])
i = 0
for sfile in files_tmp:
line_end = (line_start + sfile['line_count']) - 1
files_and_lines['files'].append({
'file': sfile['file'],
'line_start_global': line_start,
'line_end_global': line_end,
'line_start_local': 0,
'line_end_local': sfile['line_count'] - 1,
})
lines_count += line_count
line_start = files_and_lines['files'][i]['line_end_global'] + 1
i += 1
range_line_start = files_and_lines['files'][0]['line_start_global']
full_range = files_and_lines['files'][-1]['line_end_global']
files_and_lines['range_min'] = range_line_start
files_and_lines['range_max'] = full_range
files_and_lines['lines_total'] = full_range - range_line_start
i = 0
# Read last N lines
if line_range_max is not None:
range_start = full_range - line_range_max
if range_start <= 0:
range_start = 0
for l in files_and_lines['files']:
if range_start >= l['line_start_global'] and range_start <= l['line_end_global']:
l['line_start_global'] = range_start
l['line_start_local'] = l['line_end_local'] - (l['line_end_global'] - range_start)
del files_and_lines['files'][:i]
i += 1
# Read first N lines
if line_range_min is not None:
range_end = line_range_min
if range_end >= full_range:
range_end = full_range
for l in files_and_lines['files']:
if range_end >= l['line_start_global'] and range_end <= l['line_end_global']:
l['line_end_local'] = l['line_end_local'] - l['line_start_local'] - (l['line_end_global'] - range_end)
l['line_end_global'] = range_end
del files_and_lines['files'][i + 1:]
i += 1
return files_and_lines
"""
Get lines to be processed from input files and range input
Range: <min> - <max>
"""
def get_file_lines_range(self, sfiles, line_range_min=None, line_range_max=None):
files_and_lines = {'files': [], 'lines_total': 0, 'range_min': 0, 'range_max': 0}
lines_count = 0
line_start = 0
line_end = 0
range_line_start = 0
range_line_end = 0
range_line_start_found = False
if line_range_min is not None:
if line_range_min < 0:
line_range_min = None
if line_range_max is not None:
if line_range_max < 0:
line_range_max = None
for sfile in sfiles:
append = False
try:
with open(sfile, 'r') as f:
line_count = len(list(f))
f.close()
line_end = line_start + line_count
if line_range_min is not None:
if line_range_min >= line_start and line_range_min <= line_end:
append = True
line_start = line_range_min
if line_range_min is None and line_end < line_range_max:
append = True
if line_range_max is not None:
if line_range_max >= line_start and line_range_max <= line_end:
append = True
line_end = line_range_max
if line_range_min < line_end and line_range_max > line_end:
append = True
if line_range_max is None and line_start > line_range_min:
append = True
if append:
files_and_lines['files'].append({
'file': str(sfile),
'line_start_global': line_start,
'line_end_global': line_end,
'modified_date': os.path.getmtime(sfile),
'size': os.path.getsize(sfile)
})
# Use only the first matching line_start value
if not range_line_start_found:
range_line_start_found = True
range_line_start = line_start
# Use the last matching line_end value
range_line_end = line_end
lines_count += line_count
line_start = lines_count + 1
except:
raise Exception("Couldn't read input file " + sfile)
return lines_in_files
files_and_lines['lines_total'] = range_line_end - range_line_start
files_and_lines['range_min'] = range_line_start
files_and_lines['range_max'] = range_line_end
return files_and_lines
"""
Date checker
@ -488,42 +708,57 @@ class program(object):
"""
def get_included_fields(self, fields, included_fields, excluded_fields=None):
included_values = []
if included_fields:
# TODO: simplify logic
n = 0
included_fields = [[i.replace(' ',''), 0] for i in included_fields]
for a in included_fields:
a[1] += n
n += 1
if excluded_fields:
excluded_fields = [i.replace(' ','') for i in excluded_fields]
all_defined_fields = []
fields_out = {}
if 'all' in included_fields or included_fields is None:
included_fields = [i for i in fields.keys()]
included_fields = [[i, int(i['sort_index'])] for i in fields.keys()]
if excluded_fields is not None:
if 'all' in excluded_fields:
raise Exception("No output fields defined.")
# for i in excluded_fields:
# if i in included_fields:
# raise Exception("Field can't be both included and excluded. Offending field: {}".format(i))
included_fields = [i for i in included_fields if i not in excluded_fields]
all_defined_fields = included_fields + excluded_fields
# TODO: simplify logic
n = 0
included_fields = [[i, 0] for i in included_fields if i not in excluded_fields]
for a in included_fields:
a[1] += n
n += 1
all_defined_fields = [i[0] for i in included_fields] + excluded_fields
else:
all_defined_fields = included_fields
for i in all_defined_fields:
if i not in fields.keys():
raise Exception("Unknown field value: {}. Accepted values: {}".format(i, ', '.join(fields.keys())))
if i[0] not in fields.keys():
raise Exception("Unknown field value: {}. Accepted values: {}".format(i, ','.join(fields.keys())))
for key, value in fields.items():
if key in included_fields:
value['included'] = True
else:
value['included'] = False
included_values.append(value['included'])
for a in included_fields:
for key, value in fields.items():
if key == a[0]:
value['sort_index'] = a[1]
value['included'] = True
fields_out[key] = value
if True not in included_values:
if len(fields_out.keys()) == 0:
raise Exception("No output fields defined.")
return fields
return fields_out
"""
Process input files
"""
def process_files(self, user_arguments):
def process_files(self):
prev_host = ""
log_entries = []
@ -531,21 +766,25 @@ class program(object):
countries = []
# Log format as defined in Apache/HTTPD configuration file (LogFormat directive) or manually by user
if user_arguments.log_format:
log_format = user_arguments.log_format
if self.args.log_format:
log_format = self.args.log_format
else:
log_format = self.get_httpd_logformat_directive(user_arguments.httpd_conf_file, user_arguments.httpd_log_nickname)
log_format = self.get_httpd_logformat_directive(self.args.httpd_conf_file, self.args.httpd_log_nickname)
# Remove bytes in & out fields from local traffic pattern
log_format_local = log_format.replace('%I','').replace('%O','').strip()
parser = LogParser(log_format)
parser_local = LogParser(log_format_local)
if user_arguments.codes:
codes = self.get_input_status_codes(self.populate_status_codes(), user_arguments.codes)
if self.args.codes:
codes = self.get_input_status_codes(self.populate_status_codes(), self.args.codes)
if user_arguments.countries:
countries = user_arguments.countries
if self.args.countries:
countries = self.args.countries
date_lower = user_arguments.date_lower
date_upper = user_arguments.date_upper
date_lower = self.args.date_lower
date_upper = self.args.date_upper
day_format = "%d-%m-%Y"
if date_lower is not None:
@ -553,74 +792,106 @@ class program(object):
if date_upper is not None:
date_upper = datetime.strptime(date_upper, day_format)
files = self.get_files(user_arguments.files_regex, user_arguments.files_list)
geotool_exec = self.args.geotool_exec
geo_database_location = self.args.geo_database_location
show_progress = user_arguments.show_progress
use_geolocation = user_arguments.use_geolocation
incl_fields = self.args.incl_fields
if isinstance(self.args.incl_fields, str):
incl_fields = self.args.incl_fields.split(',')
use_geolocation = self.args.use_geolocation
geotool_ok = False
if use_geolocation:
if self.check_file(geotool_exec, "os.X_OK", "PATH") and self.check_file(geo_database_location, "os.R_OK"):
geotool_ok = True
geotool_exec = user_arguments.geotool_exec
geo_database_location = user_arguments.geo_database_location
if use_geolocation:
if 'country' not in incl_fields:
incl_fields.append('country')
if 'city' not in incl_fields:
incl_fields.append('city')
incl_fields = user_arguments.incl_fields
if isinstance(user_arguments.incl_fields, str):
incl_fields = user_arguments.incl_fields.replace(' ','').split(',')
if 'country' in incl_fields or 'city' in incl_fields:
use_geolocation = True
fields = self.get_included_fields(
self.get_out_fields(),
incl_fields,
user_arguments.excl_fields
self.args.excl_fields
)
if use_geolocation:
fields['country']['included'] = True
fields['city']['included'] = True
if fields['country']['included'] or fields['city']['included']:
use_geolocation = True
invalid_lines = []
field_names = []
i = 0
country_seen = False
geo_data = None
skip_line_by_status = False
skip_line_by_country = False
file_num = 0
stri = ""
files_input = self.get_files(self.args.files_regex, self.args.files_list)
files_process_data = self.get_file_lines_head_tail(
files_input,
self.args.read_first_lines_num,
self.args.read_last_lines_num,
self.args.sort_logs_by_info
)
lines_total = files_process_data['lines_total']
files_total = len(files_process_data['files'])
lines_total = sum([i['lines'] for i in self.get_file_line_count(files)])
self.txt.print_verbose(
'Log entry range',
str(files_process_data['files'][0]['line_start_global'])
+ ' - ' +
str(files_process_data['files'][-1]['line_end_global'])
)
if show_progress:
if self.args.show_progress or self.args.verbose:
print(
"File count: {}\nLines in total: {}".format(
str(len(files)),
str(files_total),
str(lines_total)
))
for lfile in files:
for lfile in files_process_data['files']:
if show_progress:
print("Processing file: {} (lines: {})".format(
lfile,
str(self.get_file_line_count([lfile])[0]['lines'])
if self.args.show_progress or self.args.verbose:
print("Processing file: {:s} (lines: {:d}-{:d})".format(
lfile['file'],
lfile['line_start_global'], lfile['line_end_global']
))
with open(lfile, 'r') as f:
with open(lfile['file'], 'r') as f:
f = list(f)
range_start = files_process_data['files'][file_num]['line_start_local']
range_end = files_process_data['files'][file_num]['line_end_local']
for line in f:
lines = range(range_start, range_end)
line_num = 1
for line in lines:
if show_progress:
print("Processing log entry: {} ({}%)".format(
str(i),
round(100 * (i/lines_total), 2)
if self.args.show_progress or self.args.verbose:
print("Processing log entry: {:d}/{:d} ({}%)".format(
line_num,
len(lines),
round(100 * (line_num/len(lines)), 2)
), end = "\r")
if i != 0 and not (skip_line_by_status or skip_line_by_country) and entry_data:
if line_num != 1 and not (skip_line_by_status or skip_line_by_country) and entry_data:
prev_host = entry_data['remote_host']
prev_host_time = entry_data['time']
try:
entry = parser.parse(line)
if re.match('|'.join(self.private_class_ip_networks), f[line]):
entry = parser_local.parse(f[line])
else:
entry = parser.parse(f[line])
except InvalidEntryError:
invalid_lines.append((lfile, i + 1))
invalid_lines.append((lfile['file'], line_num))
line_num += 1
continue
entry_data = {
@ -632,7 +903,7 @@ class program(object):
}
if not self.date_checker(date_lower, date_upper, entry_data['time']):
i += 1
line_num += 1
continue
if len(codes) > 0:
@ -645,7 +916,7 @@ class program(object):
country_seen = False
if not country_seen:
geo_data = self.geotool_get_data(geotool_exec, geo_database_location, entry_data['remote_host'])
geo_data = self.geotool_get_data(geotool_ok, geotool_exec, geo_database_location, entry_data['remote_host'])
if len(countries) > 0 and geo_data is not None:
skip_line_by_country = self.filter_country(countries, geo_data['host_country'])
@ -654,7 +925,7 @@ class program(object):
skip_line_by_country = False
if skip_line_by_status or skip_line_by_country:
i += 1
line_num += 1
continue
time_diff = str('NEW_CONN')
@ -664,29 +935,29 @@ class program(object):
time_diff = int(time_diff)
if time_diff > 0:
time_diff = "+" + str(time_diff)
if i == 0:
if line_num == 1 and file_num == 0:
time_diff = int(0)
if fields['log_file_name']['included']:
if 'log_file_name' in fields:
fields['log_file_name']['data'] = lfile
if fields['http_status']['included']:
if 'http_status' in fields:
fields['http_status']['data'] = entry_data['status']
if fields['remote_host']['included']:
if 'remote_host' in fields:
fields['remote_host']['data'] = entry_data['remote_host']
if geo_data is not None:
if fields['country']['included']:
if 'country' in fields:
fields['country']['data'] = geo_data['host_country']
if fields['city']['included']:
if 'city' in fields:
fields['city']['data'] = geo_data['host_city']
if fields['time']['included']:
if 'time' in fields:
fields['time']['data'] = entry_data['time']
if fields['time_diff']['included']:
if 'time_diff' in fields:
fields['time_diff']['data'] = time_diff
if fields['user_agent']['included']:
if 'user_agent' in fields:
fields['user_agent']['data'] = entry_data['user_agent']
if fields['http_request']['included']:
if 'http_request' in fields:
fields['http_request']['data'] = entry_data['http_request']
stri = ""
@ -703,30 +974,31 @@ class program(object):
field_names.append((key, value['human_name']))
log_entries.append(printargs)
i += 1
line_num += 1
return [log_entries, files, i, stri, field_names, invalid_lines]
file_num += 1
return [log_entries, files_process_data['files'], lines_total, stri, field_names, invalid_lines]
"""
Execute
"""
def execute(self):
user_arguments = self.get_args()
print_headers = user_arguments.column_headers
show_progress = user_arguments.show_progress
show_stats = user_arguments.show_stats
output_format = user_arguments.output_format
print_headers = self.args.column_headers
show_progress = self.args.show_progress
show_stats = self.args.show_stats
output_format = self.args.output_format
sortby_field = user_arguments.sortby_field
reverse_order = bool(user_arguments.sortby_reverse)
sortby_field = self.args.sortby_field
reverse_order = self.args.sortby_reverse
if 'all' not in user_arguments.incl_fields:
if sortby_field and sortby_field not in user_arguments.incl_fields:
raise Exception("Sort-by field must be included in output fields.")
if self.args.incl_fields:
if 'all' not in self.args.incl_fields:
if sortby_field and sortby_field not in self.args.incl_fields:
raise Exception("Sort-by field must be included in output fields.")
results = self.process_files(user_arguments)
results = self.process_files()
result_entries = results[0]
result_files = results[1]
result_lines = results[2]
@ -735,17 +1007,17 @@ class program(object):
out_fields_human_names = [i[1] for i in results[4]]
invalid_lines = results[5]
if sortby_field is None and reverse_order:
raise Exception("You must define a field for reverse sorting.")
if sortby_field is not None:
out_field_validation = self.get_out_field(out_fields, sortby_field)
if out_field_validation[0]:
result_entries.sort(
key = lambda result_entries : result_entries[out_field_validation[1]] or '',
key = lambda r : r[out_field_validation[1]] or '',
reverse = reverse_order
)
if not show_progress:
print("\n")
if output_format == 'table':
if print_headers:
@ -763,7 +1035,6 @@ class program(object):
if output_format == 'csv':
if print_headers:
print("\n")
print(','.join(out_fields_human_names))
for entry in result_entries:
@ -780,7 +1051,7 @@ class program(object):
"Processed log entries: {:d}\n" +
"Matched log entries: {:d}\n"
).format(
', '.join(result_files),
', '.join([i['file'] for i in result_files['files']]),
result_lines,
len(result_entries)
)


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