diff options
Diffstat (limited to 'collectors/python.d.plugin/web_log/web_log.chart.py')
| -rw-r--r-- | collectors/python.d.plugin/web_log/web_log.chart.py | 1194 |
1 files changed, 1194 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/web_log/web_log.chart.py b/collectors/python.d.plugin/web_log/web_log.chart.py new file mode 100644 index 000000000..20e15f4cb --- /dev/null +++ b/collectors/python.d.plugin/web_log/web_log.chart.py @@ -0,0 +1,1194 @@ +# -*- coding: utf-8 -*- +# Description: web log netdata python.d module +# Author: l2isbad +# SPDX-License-Identifier: GPL-3.0-or-later + +import bisect +import re +import os + +from collections import namedtuple, defaultdict +from copy import deepcopy + +try: + from itertools import filterfalse +except ImportError: + from itertools import ifilter as filter + from itertools import ifilterfalse as filterfalse + +try: + from sys import maxint +except ImportError: + from sys import maxsize as maxint + +from bases.collection import read_last_line +from bases.FrameworkServices.LogService import LogService + + +ORDER_APACHE_CACHE = ['apache_cache'] + +ORDER_WEB = [ + 'response_statuses', + 'response_codes', + 'bandwidth', + 'response_time', + 'response_time_hist', + 'response_time_upstream', + 'response_time_upstream_hist', + 'requests_per_url', + 'requests_per_user_defined', + 'http_method', + 'vhost', + 'port', + 'http_version', + 'requests_per_ipproto', + 'clients', + 'clients_all' +] + +ORDER_SQUID = [ + 'squid_response_statuses', + 'squid_response_codes', + 'squid_detailed_response_codes', + 'squid_method', + 'squid_mime_type', + 'squid_hier_code', + 'squid_transport_methods', + 'squid_transport_errors', + 'squid_code', + 'squid_handling_opts', + 'squid_object_types', + 'squid_cache_events', + 'squid_bytes', + 'squid_duration', + 'squid_clients', + 'squid_clients_all' +] + +CHARTS_WEB = { + 'response_codes': { + 'options': [None, 'Response Codes', 'requests/s', 'responses', 'web_log.response_codes', 'stacked'], + 'lines': [ + ['2xx', None, 'incremental'], + ['5xx', None, 'incremental'], + ['3xx', None, 'incremental'], + ['4xx', None, 'incremental'], + ['1xx', None, 'incremental'], + ['0xx', 'other', 'incremental'], + ['unmatched', None, 'incremental'] + ] + }, + 'bandwidth': { + 'options': [None, 'Bandwidth', 'kilobits/s', 'bandwidth', 'web_log.bandwidth', 'area'], + 'lines': [ + ['resp_length', 'received', 'incremental', 8, 1000], + ['bytes_sent', 'sent', 'incremental', -8, 1000] + ] + }, + 'response_time': { + 'options': [None, 'Processing Time', 'milliseconds', 'timings', 'web_log.response_time', 'area'], + 'lines': [ + ['resp_time_min', 'min', 'incremental', 1, 1000], + ['resp_time_max', 'max', 'incremental', 1, 1000], + ['resp_time_avg', 'avg', 'incremental', 1, 1000] + ] + }, + 'response_time_hist': { + 'options': [None, 'Processing Time Histogram', 'requests/s', 'timings', 'web_log.response_time_hist', 'line'], + 'lines': [] + }, + 'response_time_upstream': { + 'options': [None, 'Processing Time Upstream', 'milliseconds', 'timings', + 'web_log.response_time_upstream', 'area'], + 'lines': [ + ['resp_time_upstream_min', 'min', 'incremental', 1, 1000], + ['resp_time_upstream_max', 'max', 'incremental', 1, 1000], + ['resp_time_upstream_avg', 'avg', 'incremental', 1, 1000] + ] + }, + 'response_time_upstream_hist': { + 'options': [None, 'Processing Time Histogram', 'requests/s', 'timings', + 'web_log.response_time_upstream_hist', 'line'], + 'lines': [] + }, + 'clients': { + 'options': [None, 'Current Poll Unique Client IPs', 'unique ips', 'clients', 'web_log.clients', 'stacked'], + 'lines': [ + ['unique_cur_ipv4', 'ipv4', 'incremental', 1, 1], + ['unique_cur_ipv6', 'ipv6', 'incremental', 1, 1] + ] + }, + 'clients_all': { + 'options': [None, 'All Time Unique Client IPs', 'unique ips', 'clients', 'web_log.clients_all', 'stacked'], + 'lines': [ + ['unique_tot_ipv4', 'ipv4', 'absolute', 1, 1], + ['unique_tot_ipv6', 'ipv6', 'absolute', 1, 1] + ] + }, + 'http_method': { + 'options': [None, 'Requests Per HTTP Method', 'requests/s', 'http methods', 'web_log.http_method', 'stacked'], + 'lines': [ + ['GET', 'GET', 'incremental', 1, 1] + ] + }, + 'http_version': { + 'options': [None, 'Requests Per HTTP Version', 'requests/s', 'http versions', + 'web_log.http_version', 'stacked'], + 'lines': [] + }, + 'requests_per_ipproto': { + 'options': [None, 'Requests Per IP Protocol', 'requests/s', 'ip protocols', 'web_log.requests_per_ipproto', + 'stacked'], + 'lines': [ + ['req_ipv4', 'ipv4', 'incremental', 1, 1], + ['req_ipv6', 'ipv6', 'incremental', 1, 1] + ] + }, + 'response_statuses': { + 'options': [None, 'Response Statuses', 'requests/s', 'responses', 'web_log.response_statuses', 'stacked'], + 'lines': [ + ['successful_requests', 'success', 'incremental', 1, 1], + ['server_errors', 'error', 'incremental', 1, 1], + ['redirects', 'redirect', 'incremental', 1, 1], + ['bad_requests', 'bad', 'incremental', 1, 1], + ['other_requests', 'other', 'incremental', 1, 1] + ] + }, + 'requests_per_url': { + 'options': [None, 'Requests Per Url', 'requests/s', 'urls', 'web_log.requests_per_url', 'stacked'], + 'lines': [ + ['url_pattern_other', 'other', 'incremental', 1, 1] + ] + }, + 'requests_per_user_defined': { + 'options': [None, 'Requests Per User Defined Pattern', 'requests/s', 'user defined', + 'web_log.requests_per_user_defined', 'stacked'], + 'lines': [ + ['user_pattern_other', 'other', 'incremental', 1, 1] + ] + }, + 'port': { + 'options': [None, 'Requests Per Port', 'requests/s', 'port', 'web_log.port', 'stacked'], + 'lines': [ + ['port_80', 'http', 'incremental', 1, 1], + ['port_443', 'https', 'incremental', 1, 1] + ] + }, + 'vhost': { + 'options': [None, 'Requests Per Vhost', 'requests/s', 'vhost', 'web_log.vhost', 'stacked'], + 'lines': [] + } +} + +CHARTS_APACHE_CACHE = { + 'apache_cache': { + 'options': [None, 'Apache Cached Responses', 'percent cached', 'cached', 'web_log.apache_cache_cache', + 'stacked'], + 'lines': [ + ['hit', 'cache', 'percentage-of-absolute-row'], + ['miss', None, 'percentage-of-absolute-row'], + ['other', None, 'percentage-of-absolute-row'] + ] + } +} + +CHARTS_SQUID = { + 'squid_duration': { + 'options': [None, 'Elapsed Time The Transaction Busied The Cache', + 'milliseconds', 'squid_timings', 'web_log.squid_duration', 'area'], + 'lines': [ + ['duration_min', 'min', 'incremental', 1, 1000], + ['duration_max', 'max', 'incremental', 1, 1000], + ['duration_avg', 'avg', 'incremental', 1, 1000] + ] + }, + 'squid_bytes': { + 'options': [None, 'Amount Of Data Delivered To The Clients', + 'kilobits/s', 'squid_bandwidth', 'web_log.squid_bytes', 'area'], + 'lines': [ + ['bytes', 'sent', 'incremental', 8, 1000] + ] + }, + 'squid_response_statuses': { + 'options': [None, 'Response Statuses', 'responses/s', 'squid_responses', 'web_log.squid_response_statuses', + 'stacked'], + 'lines': [ + ['successful_requests', 'success', 'incremental', 1, 1], + ['server_errors', 'error', 'incremental', 1, 1], + ['redirects', 'redirect', 'incremental', 1, 1], + ['bad_requests', 'bad', 'incremental', 1, 1], + ['other_requests', 'other', 'incremental', 1, 1] + ] + }, + 'squid_response_codes': { + 'options': [None, 'Response Codes', 'responses/s', 'squid_responses', + 'web_log.squid_response_codes', 'stacked'], + 'lines': [ + ['2xx', None, 'incremental'], + ['5xx', None, 'incremental'], + ['3xx', None, 'incremental'], + ['4xx', None, 'incremental'], + ['1xx', None, 'incremental'], + ['0xx', None, 'incremental'], + ['other', None, 'incremental'], + ['unmatched', None, 'incremental'] + ] + }, + 'squid_code': { + 'options': [None, 'Responses Per Cache Result Of The Request', + 'requests/s', 'squid_squid_cache', 'web_log.squid_code', 'stacked'], + 'lines': [] + }, + 'squid_detailed_response_codes': { + 'options': [None, 'Detailed Response Codes', + 'responses/s', 'squid_responses', 'web_log.squid_detailed_response_codes', 'stacked'], + 'lines': [] + }, + 'squid_hier_code': { + 'options': [None, 'Responses Per Hierarchy Code', + 'requests/s', 'squid_hierarchy', 'web_log.squid_hier_code', 'stacked'], + 'lines': [] + }, + 'squid_method': { + 'options': [None, 'Requests Per Method', + 'requests/s', 'squid_requests', 'web_log.squid_method', 'stacked'], + 'lines': [] + }, + 'squid_mime_type': { + 'options': [None, 'Requests Per MIME Type', + 'requests/s', 'squid_requests', 'web_log.squid_mime_type', 'stacked'], + 'lines': [] + }, + 'squid_clients': { + 'options': [None, 'Current Poll Unique Client IPs', 'unique ips', 'squid_clients', + 'web_log.squid_clients', 'stacked'], + 'lines': [ + ['unique_ipv4', 'ipv4', 'incremental'], + ['unique_ipv6', 'ipv6', 'incremental'] + ] + }, + 'squid_clients_all': { + 'options': [None, 'All Time Unique Client IPs', 'unique ips', 'squid_clients', + 'web_log.squid_clients_all', 'stacked'], + 'lines': [ + ['unique_tot_ipv4', 'ipv4', 'absolute'], + ['unique_tot_ipv6', 'ipv6', 'absolute'] + ] + }, + 'squid_transport_methods': { + 'options': [None, 'Transport Methods', 'requests/s', 'squid_squid_transport', + 'web_log.squid_transport_methods', 'stacked'], + 'lines': [] + }, + 'squid_transport_errors': { + 'options': [None, 'Transport Errors', 'requests/s', 'squid_squid_transport', + 'web_log.squid_transport_errors', 'stacked'], + 'lines': [] + }, + 'squid_handling_opts': { + 'options': [None, 'Handling Opts', 'requests/s', 'squid_squid_cache', + 'web_log.squid_handling_opts', 'stacked'], + 'lines': [] + }, + 'squid_object_types': { + 'options': [None, 'Object Types', 'objects/s', 'squid_squid_cache', + 'web_log.squid_object_types', 'stacked'], + 'lines': [] + }, + 'squid_cache_events': { + 'options': [None, 'Cache Events', 'events/s', 'squid_squid_cache', + 'web_log.squid_cache_events', 'stacked'], + 'lines': [] + } +} + +NAMED_PATTERN = namedtuple('PATTERN', ['description', 'func']) + +DET_RESP_AGGR = ['', '_1xx', '_2xx', '_3xx', '_4xx', '_5xx', '_Other'] + +SQUID_CODES = { + 'TCP': 'squid_transport_methods', + 'UDP': 'squid_transport_methods', + 'NONE': 'squid_transport_methods', + 'CLIENT': 'squid_handling_opts', + 'IMS': 'squid_handling_opts', + 'ASYNC': 'squid_handling_opts', + 'SWAPFAIL': 'squid_handling_opts', + 'REFRESH': 'squid_handling_opts', + 'SHARED': 'squid_handling_opts', + 'REPLY': 'squid_handling_opts', + 'NEGATIVE': 'squid_object_types', + 'STALE': 'squid_object_types', + 'OFFLINE': 'squid_object_types', + 'INVALID': 'squid_object_types', + 'FAIL': 'squid_object_types', + 'MODIFIED': 'squid_object_types', + 'UNMODIFIED': 'squid_object_types', + 'REDIRECT': 'squid_object_types', + 'HIT': 'squid_cache_events', + 'MEM': 'squid_cache_events', + 'MISS': 'squid_cache_events', + 'DENIED': 'squid_cache_events', + 'NOFETCH': 'squid_cache_events', + 'TUNNEL': 'squid_cache_events', + 'ABORTED': 'squid_transport_errors', + 'TIMEOUT': 'squid_transport_errors' +} + +REQUEST_REGEX = re.compile(r'(?P<method>[A-Z]+) (?P<url>[^ ]+) [A-Z]+/(?P<http_version>\d(?:.\d)?)') + +MIME_TYPES = ['application', 'audio', 'example', 'font', 'image', 'message', 'model', 'multipart', 'text', 'video'] + + +class Service(LogService): + def __init__(self, configuration=None, name=None): + """ + :param configuration: + :param name: + """ + LogService.__init__(self, configuration=configuration, name=name) + self.configuration = configuration + self.log_path = self.configuration.get('path') + self.job = None + + def check(self): + """ + :return: bool + + 1. "log_path" is specified in the module configuration file + 2. "log_path" must be readable by netdata user and must exist + 3. "log_path' must not be empty. We need at least 1 line to find appropriate pattern to parse + 4. other checks depends on log "type" + """ + + log_type = self.configuration.get('type', 'web') + log_types = dict(web=Web, apache_cache=ApacheCache, squid=Squid) + + if log_type not in log_types: + self.error('bad log type {log_type}. Supported types: {types}'.format(log_type=log_type, + types=log_types.keys())) + return False + + if not self.log_path: + self.error('log path is not specified') + return False + + if not (self._find_recent_log_file() and os.access(self.log_path, os.R_OK)): + self.error('{log_file} not readable or not exist'.format(log_file=self.log_path)) + return False + + if not os.path.getsize(self.log_path): + self.error('{log_file} is empty'.format(log_file=self.log_path)) + return False + + self.job = log_types[log_type](self) + if self.job.check(): + self.order = self.job.order + self.definitions = self.job.definitions + return True + return False + + def _get_data(self): + return self.job.get_data(self._get_raw_data()) + + +class Web: + def __init__(self, service): + self.service = service + self.order = ORDER_WEB[:] + self.definitions = deepcopy(CHARTS_WEB) + self.pre_filter = check_patterns('filter', self.configuration.get('filter')) + self.storage = dict() + self.data = { + 'bytes_sent': 0, + 'resp_length': 0, + 'resp_time_min': 0, + 'resp_time_max': 0, + 'resp_time_avg': 0, + 'resp_time_upstream_min': 0, + 'resp_time_upstream_max': 0, + 'resp_time_upstream_avg': 0, + 'unique_cur_ipv4': 0, + 'unique_cur_ipv6': 0, + '2xx': 0, + '5xx': 0, + '3xx': 0, + '4xx': 0, + '1xx': 0, + '0xx': 0, + 'unmatched': 0, + 'req_ipv4': 0, + 'req_ipv6': 0, + 'unique_tot_ipv4': 0, + 'unique_tot_ipv6': 0, + 'successful_requests': 0, + 'redirects': 0, + 'bad_requests': 0, + 'server_errors': 0, + 'other_requests': 0, + 'GET': 0 + } + + def __getattr__(self, item): + return getattr(self.service, item) + + def check(self): + last_line = read_last_line(self.log_path) + if not last_line: + return False + # Custom_log_format or predefined log format. + if self.configuration.get('custom_log_format'): + match_dict, error = self.find_regex_custom(last_line) + else: + match_dict, error = self.find_regex(last_line) + + # "match_dict" is None if there are any problems + if match_dict is None: + self.error(error) + return False + + self.storage['unique_all_time'] = list() + self.storage['url_pattern'] = check_patterns('url_pattern', self.configuration.get('categories')) + self.storage['user_pattern'] = check_patterns('user_pattern', self.configuration.get('user_defined')) + + self.create_web_charts(match_dict) # Create charts + self.info('Collected data: %s' % list(match_dict.keys())) + return True + + def create_web_charts(self, match_dict): + """ + :param match_dict: dict: regex.search.groupdict(). Ex. {'address': '127.0.0.1', 'code': '200', 'method': 'GET'} + :return: + Create/remove additional charts depending on the 'match_dict' keys and configuration file options + """ + if 'resp_time' not in match_dict: + self.order.remove('response_time') + self.order.remove('response_time_hist') + if 'resp_time_upstream' not in match_dict: + self.order.remove('response_time_upstream') + self.order.remove('response_time_upstream_hist') + + # Add 'response_time_hist' and 'response_time_upstream_hist' charts if is specified in the configuration + histogram = self.configuration.get('histogram', None) + if isinstance(histogram, list): + self.storage['bucket_index'] = histogram[:] + self.storage['bucket_index'].append(maxint) + self.storage['buckets'] = [0] * (len(histogram) + 1) + self.storage['upstream_buckets'] = [0] * (len(histogram) + 1) + hist_lines = self.definitions['response_time_hist']['lines'] + upstream_hist_lines = self.definitions['response_time_upstream_hist']['lines'] + for i, le in enumerate(histogram): + hist_key = 'response_time_hist_%d' % i + upstream_hist_key = 'response_time_upstream_hist_%d' % i + hist_lines.append([hist_key, str(le), 'incremental', 1, 1]) + upstream_hist_lines.append([upstream_hist_key, str(le), 'incremental', 1, 1]) + + hist_lines.append(['response_time_hist_%d' % len(histogram), '+Inf', 'incremental', 1, 1]) + upstream_hist_lines.append(['response_time_upstream_hist_%d' % len(histogram), '+Inf', 'incremental', 1, 1]) + elif histogram is not None: + self.error('expect histogram list, but was {0}'.format(type(histogram))) + + if not self.configuration.get('all_time', True): + self.order.remove('clients_all') + + # Add 'detailed_response_codes' chart if specified in the configuration + if self.configuration.get('detailed_response_codes', True): + if self.configuration.get('detailed_response_aggregate', True): + codes = DET_RESP_AGGR[:1] + else: + codes = DET_RESP_AGGR[1:] + + for code in codes: + self.order.append('detailed_response_codes%s' % code) + self.definitions['detailed_response_codes%s' % code] = { + 'options': [None, 'Detailed Response Codes %s' % code[1:], 'requests/s', 'responses', + 'web_log.detailed_response_codes%s' % code, 'stacked'], + 'lines': [] + } + + # Add 'requests_per_url' chart if specified in the configuration + if self.storage['url_pattern']: + for elem in self.storage['url_pattern']: + dim = [elem.description, elem.description[12:], 'incremental'] + self.definitions['requests_per_url']['lines'].append(dim) + self.data[elem.description] = 0 + self.data['url_pattern_other'] = 0 + else: + self.order.remove('requests_per_url') + + # Add 'requests_per_user_defined' chart if specified in the configuration + if self.storage['user_pattern'] and 'user_defined' in match_dict: + for elem in self.storage['user_pattern']: + dim = [elem.description, elem.description[13:], 'incremental'] + self.definitions['requests_per_user_defined']['lines'].append(dim) + self.data[elem.description] = 0 + self.data['user_pattern_other'] = 0 + else: + self.order.remove('requests_per_user_defined') + + def get_data(self, raw_data=None): + """ + Parses new log lines + :return: dict OR None + None if _get_raw_data method fails. + In all other cases - dict. + """ + if not raw_data: + return None if raw_data is None else self.data + + filtered_data = filter_data(raw_data=raw_data, pre_filter=self.pre_filter) + + unique_current = set() + timings = defaultdict(lambda: dict(minimum=None, maximum=0, summary=0, count=0)) + + for line in filtered_data: + match = self.storage['regex'].search(line) + if match: + match_dict = match.groupdict() + try: + code = match_dict['code'][0] + 'xx' + self.data[code] += 1 + except KeyError: + self.data['0xx'] += 1 + # detailed response code + if self.configuration.get('detailed_response_codes', True): + self.get_data_per_response_codes_detailed(code=match_dict['code']) + # response statuses + self.get_data_per_statuses(code=match_dict['code']) + # requests per user defined pattern + if self.storage['user_pattern'] and 'user_defined' in match_dict: + self.get_data_per_pattern(row=match_dict['user_defined'], + other='user_pattern_other', + pattern=self.storage['user_pattern']) + # method, url, http version + self.get_data_from_request_field(match_dict=match_dict) + # bandwidth sent + bytes_sent = match_dict['bytes_sent'] if '-' not in match_dict['bytes_sent'] else 0 + self.data['bytes_sent'] += int(bytes_sent) + # request processing time and bandwidth received + if 'resp_length' in match_dict: + resp_length = match_dict['resp_length'] if '-' not in match_dict['resp_length'] else 0 + self.data['resp_length'] += int(resp_length) + if 'resp_time' in match_dict: + resp_time = self.storage['func_resp_time'](float(match_dict['resp_time'])) + get_timings(timings=timings['resp_time'], time=resp_time) + if 'bucket_index' in self.storage: + get_hist(self.storage['bucket_index'], self.storage['buckets'], resp_time / 1000) + if 'resp_time_upstream' in match_dict and match_dict['resp_time_upstream'] != '-': + resp_time_upstream = self.storage['func_resp_time'](float(match_dict['resp_time_upstream'])) + get_timings(timings=timings['resp_time_upstream'], time=resp_time_upstream) + if 'bucket_index' in self.storage: + get_hist(self.storage['bucket_index'], self.storage['upstream_buckets'], resp_time / 1000) + # requests per ip proto + proto = 'ipv6' if ':' in match_dict['address'] else 'ipv4' + self.data['req_' + proto] += 1 + # unique clients ips + if self.configuration.get('all_time', True): + if address_not_in_pool(pool=self.storage['unique_all_time'], + address=match_dict['address'], + pool_size=self.data['unique_tot_ipv4'] + self.data['unique_tot_ipv6']): + self.data['unique_tot_' + proto] += 1 + if match_dict['address'] not in unique_current: + self.data['unique_cur_' + proto] += 1 + unique_current.add(match_dict['address']) + else: + self.data['unmatched'] += 1 + + # timings + for elem in timings: + self.data[elem + '_min'] += timings[elem]['minimum'] + self.data[elem + '_avg'] += timings[elem]['summary'] / timings[elem]['count'] + self.data[elem + '_max'] += timings[elem]['maximum'] + + # histogram + if 'bucket_index' in self.storage: + buckets = self.storage['buckets'] + upstream_buckets = self.storage['upstream_buckets'] + for i in range(0, len(self.storage['bucket_index'])): + hist_key = 'response_time_hist_%d' % i + upstream_hist_key = 'response_time_upstream_hist_%d' % i + self.data[hist_key] = buckets[i] + self.data[upstream_hist_key] = upstream_buckets[i] + + return self.data + + def find_regex(self, last_line): + """ + :param last_line: str: literally last line from log file + :return: tuple where: + [0]: dict or None: match_dict or None + [1]: str: error description + We need to find appropriate pattern for current log file + All logic is do a regex search through the string for all predefined patterns + until we find something or fail. + """ + # REGEX: 1.IPv4 address 2.HTTP method 3. URL 4. Response code + # 5. Bytes sent 6. Response length 7. Response process time + default = re.compile(r'(?P<address>[\da-f.:]+|localhost)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+|-)') + + apache_ext_insert = re.compile(r'(?P<address>[\da-f.:]+|localhost)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+|-)' + r' (?P<resp_length>\d+|-)' + r' (?P<resp_time>\d+) ') + + apache_ext_append = re.compile(r'(?P<address>[\da-f.:]+|localhost)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+|-)' + r' .*?' + r' (?P<resp_length>\d+|-)' + r' (?P<resp_time>\d+)' + r'(?: |$)') + + nginx_ext_insert = re.compile(r'(?P<address>[\da-f.:]+)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+)' + r' (?P<resp_length>\d+)' + r' (?P<resp_time>\d+\.\d+) ') + + nginx_ext2_insert = re.compile(r'(?P<address>[\da-f.:]+)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+)' + r' (?P<resp_length>\d+)' + r' (?P<resp_time>\d+\.\d+)' + r' (?P<resp_time_upstream>[\d.-]+) ') + + nginx_ext_append = re.compile(r'(?P<address>[\da-f.:]+)' + r' -.*?"(?P<request>[^"]*)"' + r' (?P<code>[1-9]\d{2})' + r' (?P<bytes_sent>\d+)' + r' .*?' + r' (?P<resp_length>\d+)' + r' (?P<resp_time>\d+\.\d+)') + + def func_usec(time): + return time + + def func_sec(time): + return time * 1000000 + + r_regex = [apache_ext_insert, apache_ext_append, + nginx_ext2_insert, nginx_ext_insert, nginx_ext_append, + default] + r_function = [func_usec, func_usec, func_sec, func_sec, func_sec, func_usec] + regex_function = zip(r_regex, r_function) + + match_dict = dict() + for regex, func in regex_function: + match = regex.search(last_line) + if match: + self.storage['regex'] = regex + self.storage['func_resp_time'] = func + match_dict = match.groupdict() + break + + return find_regex_return(match_dict=match_dict or None, + msg='Unknown log format. You need to use "custom_log_format" feature.') + + def find_regex_custom(self, last_line): + """ + :param last_line: str: literally last line from log file + :return: tuple where: + [0]: dict or None: match_dict or None + [1]: str: error description + + We are here only if "custom_log_format" is in logs. We need to make sure: + 1. "custom_log_format" is a dict + 2. "pattern" in "custom_log_format" and pattern is <str> instance + 3. if "time_multiplier" is in "custom_log_format" it must be <int> or <float> instance + + If all parameters is ok we need to make sure: + 1. Pattern search is success + 2. Pattern search contains named subgroups (?P<subgroup_name>) (= "match_dict") + + If pattern search is success we need to make sure: + 1. All mandatory keys ['address', 'code', 'bytes_sent', 'method', 'url'] are in "match_dict" + + If this is True we need to make sure: + 1. All mandatory key values from "match_dict" have the correct format + ("code" is integer, "method" is uppercase word, etc) + + If non mandatory keys in "match_dict" we need to make sure: + 1. All non mandatory key values from match_dict ['resp_length', 'resp_time'] have the correct format + ("resp_length" is integer or "-", "resp_time" is integer or float) + + """ + if not hasattr(self.configuration.get('custom_log_format'), 'keys'): + return find_regex_return(msg='Custom log: "custom_log_format" is not a <dict>') + + pattern = self.configuration.get('custom_log_format', dict()).get('pattern') + if not (pattern and isinstance(pattern, str)): + return find_regex_return(msg='Custom log: "pattern" option is not specified or type is not <str>') + + resp_time_func = self.configuration.get('custom_log_format', dict()).get('time_multiplier') or 0 + + if not isinstance(resp_time_func, (int, float)): + return find_regex_return(msg='Custom log: "time_multiplier" is not an integer or a float') + + try: + regex = re.compile(pattern) + except re.error as error: + return find_regex_return(msg='Pattern compile error: %s' % str(error)) + + match = regex.search(last_line) + if not match: + return find_regex_return(msg='Custom log: pattern search FAILED') + + match_dict = match.groupdict() or None + if match_dict is None: + return find_regex_return(msg='Custom log: search OK but contains no named subgroups' + ' (you need to use ?P<subgroup_name>)') + mandatory_dict = {'address': r'[\w.:-]+', + 'code': r'[1-9]\d{2}', + 'bytes_sent': r'\d+|-'} + optional_dict = {'resp_length': r'\d+|-', + 'resp_time': r'[\d.]+', + 'resp_time_upstream': r'[\d.-]+', + 'method': r'[A-Z]+', + 'http_version': r'\d(?:.\d)?'} + + mandatory_values = set(mandatory_dict) - set(match_dict) + if mandatory_values: + return find_regex_return(msg='Custom log: search OK but some mandatory keys (%s) are missing' + % list(mandatory_values)) + for key in mandatory_dict: + if not re.search(mandatory_dict[key], match_dict[key]): + return find_regex_return(msg='Custom log: can\'t parse "%s": %s' + % (key, match_dict[key])) + + optional_values = set(optional_dict) & set(match_dict) + for key in optional_values: + if not re.search(optional_dict[key], match_dict[key]): + return find_regex_return(msg='Custom log: can\'t parse "%s": %s' + % (key, match_dict[key])) + + dot_in_time = '.' in match_dict.get('resp_time', '') + if dot_in_time: + self.storage['func_resp_time'] = lambda time: time * (resp_time_func or 1000000) + else: + self.storage['func_resp_time'] = lambda time: time * (resp_time_func or 1) + + self.storage['regex'] = regex + return find_regex_return(match_dict=match_dict) + + def get_data_from_request_field(self, match_dict): + if match_dict.get('request'): + match_dict = REQUEST_REGEX.search(match_dict['request']) + if match_dict: + match_dict = match_dict.groupdict() + else: + return + # requests per url + if match_dict.get('url') and self.storage['url_pattern']: + self.get_data_per_pattern(row=match_dict['url'], + other='url_pattern_other', + pattern=self.storage['url_pattern']) + # requests per http method + if match_dict.get('method'): + if match_dict['method'] not in self.data: + self.charts['http_method'].add_dimension([match_dict['method'], + match_dict['method'], + 'incremental']) + self.data[match_dict['method']] = 0 + self.data[match_dict['method']] += 1 + # requests per http version + if match_dict.get('http_version'): + dim_id = match_dict['http_version'].replace('.', '_') + if dim_id not in self.data: + self.charts['http_version'].add_dimension([dim_id, + match_dict['http_version'], + 'incremental']) + self.data[dim_id] = 0 + self.data[dim_id] += 1 + # requests per port number + if match_dict.get('port'): + if match_dict['port'] not in self.data: + self.charts['port'].add_dimension([match_dict['port'], + match_dict['port'], + 'incremental']) + self.data[match_dict['port']] = 0 + self.data[match_dict['port']] += 1 + # requests per vhost + if match_dict.get('vhost'): + dim_id = match_dict['vhost'].replace('.', '_') + if dim_id not in self.data: + self.charts['vhost'].add_dimension([dim_id, + match_dict['vhost'], + 'incremental']) + self.data[dim_id] = 0 + self.data[dim_id] += 1 + + def get_data_per_response_codes_detailed(self, code): + """ + :param code: str: CODE from parsed line. Ex.: '202, '499' + :return: + Calls add_new_dimension method If the value is found for the first time + """ + if code not in self.data: + if self.configuration.get('detailed_response_aggregate', True): + self.charts['detailed_response_codes'].add_dimension([code, code, 'incremental']) + self.data[code] = 0 + else: + code_index = int(code[0]) if int(code[0]) < 6 else 6 + chart_key = 'detailed_response_codes' + DET_RESP_AGGR[code_index] + self.charts[chart_key].add_dimension([code, code, 'incremental']) + self.data[code] = 0 + self.data[code] += 1 + + def get_data_per_pattern(self, row, other, pattern): + """ + :param row: str: + :param other: str: + :param pattern: named tuple: (['pattern_description', 'regular expression']) + :return: + Scan through string looking for the first location where patterns produce a match for all user + defined patterns + """ + match = None + for elem in pattern: + if elem.func(row): + self.data[elem.description] += 1 + match = True + break + if not match: + self.data[other] += 1 + + def get_data_per_statuses(self, code): + """ + :param code: str: response status code. Ex.: '202', '499' + :return: + """ + code_class = code[0] + if code_class == '2' or code == '304' or code_class == '1': + self.data['successful_requests'] += 1 + elif code_class == '3': + self.data['redirects'] += 1 + elif code_class == '4': + self.data['bad_requests'] += 1 + elif code_class == '5': + self.data['server_errors'] += 1 + else: + self.data['other_requests'] += 1 + + +class ApacheCache: + def __init__(self, service): + self.service = service + self.order = ORDER_APACHE_CACHE + self.definitions = CHARTS_APACHE_CACHE + + @staticmethod + def check(): + return True + + @staticmethod + def get_data(raw_data=None): + data = dict(hit=0, miss=0, other=0) + if not raw_data: + return None if raw_data is None else data + + for line in raw_data: + if 'cache hit' in line: + data['hit'] += 1 + elif 'cache miss' in line: + data['miss'] += 1 + else: + data['other'] += 1 + return data + + +class Squid: + def __init__(self, service): + self.service = service + self.order = ORDER_SQUID + self.definitions = CHARTS_SQUID + self.pre_filter = check_patterns('filter', self.configuration.get('filter')) + self.storage = dict() + self.data = { + 'duration_max': 0, + 'duration_avg': 0, + 'duration_min': 0, + 'bytes': 0, + '0xx': 0, + '1xx': 0, + '2xx': 0, + '3xx': 0, + '4xx': 0, + '5xx': 0, + 'other': 0, + 'unmatched': 0, + 'unique_ipv4': 0, + 'unique_ipv6': 0, + 'unique_tot_ipv4': 0, + 'unique_tot_ipv6': 0, + 'successful_requests': 0, + 'redirects': 0, + 'bad_requests': 0, + 'server_errors': 0, + 'other_requests': 0 + } + + def __getattr__(self, item): + return getattr(self.service, item) + + def check(self): + last_line = read_last_line(self.log_path) + if not last_line: + return False + self.storage['unique_all_time'] = list() + self.storage['regex'] = re.compile(r'[0-9.]+\s+(?P<duration>[0-9]+)' + r' (?P<client_address>[\da-f.:]+)' + r' (?P<squid_code>[A-Z_]+)/' + r'(?P<http_code>[0-9]+)' + r' (?P<bytes>[0-9]+)' + r' (?P<method>[A-Z_]+)' + r' (?P<url>[^ ]+)' + r' (?P<user>[^ ]+)' + r' (?P<hier_code>[A-Z_]+)/[\da-z.:-]+' + r' (?P<mime_type>[A-Za-z-]*)') + + match = self.storage['regex'].search(last_line) + if not match: + self.error('Regex not matches (%s)' % self.storage['regex'].pattern) + return False + self.storage['dynamic'] = { + 'http_code': { + 'chart': 'squid_detailed_response_codes', + 'func_dim_id': None, + 'func_dim': None + }, + 'hier_code': { + 'chart': 'squid_hier_code', + 'func_dim_id': None, + 'func_dim': lambda v: v.replace('HIER_', '') + }, + 'method': { + 'chart': 'squid_method', + 'func_dim_id': None, + 'func_dim': None + }, + 'mime_type': { + 'chart': 'squid_mime_type', + 'func_dim_id': lambda v: str.lower(v) if str.lower(v) in MIME_TYPES else 'unknown', + 'func_dim': None + } + } + if not self.configuration.get('all_time', True): + self.order.remove('squid_clients_all') + return True + + def get_data(self, raw_data=None): + if not raw_data: + return None if raw_data is None else self.data + + filtered_data = filter_data(raw_data=raw_data, pre_filter=self.pre_filter) + + unique_ip = set() + timings = defaultdict(lambda: dict(minimum=None, maximum=0, summary=0, count=0)) + + for row in filtered_data: + match = self.storage['regex'].search(row) + if match: + match = match.groupdict() + if match['duration'] != '0': + get_timings(timings=timings['duration'], time=float(match['duration']) * 1000) + try: + self.data[match['http_code'][0] + 'xx'] += 1 + except KeyError: + self.data['other'] += 1 + + self.get_data_per_statuses(match['http_code']) + + self.get_data_per_squid_code(match['squid_code']) + + self.data['bytes'] += int(match['bytes']) + + proto = 'ipv4' if '.' in match['client_address'] else 'ipv6' + # unique clients ips + if self.configuration.get('all_time', True): + if address_not_in_pool(pool=self.storage['unique_all_time'], + address=match['client_address'], + pool_size=self.data['unique_tot_ipv4'] + self.data['unique_tot_ipv6']): + self.data['unique_tot_' + proto] += 1 + + if match['client_address'] not in unique_ip: + self.data['unique_' + proto] += 1 + unique_ip.add(match['client_address']) + + for key, values in self.storage['dynamic'].items(): + if match[key] == '-': + continue + dimension_id = values['func_dim_id'](match[key]) if values['func_dim_id'] else match[key] + if dimension_id not in self.data: + dimension = values['func_dim'](match[key]) if values['func_dim'] else dimension_id + self.charts[values['chart']].add_dimension([dimension_id, + dimension, + 'incremental']) + self.data[dimension_id] = 0 + self.data[dimension_id] += 1 + else: + self.data['unmatched'] += 1 + + for elem in timings: + self.data[elem + '_min'] += timings[elem]['minimum'] + self.data[elem + '_avg'] += timings[elem]['summary'] / timings[elem]['count'] + self.data[elem + '_max'] += timings[elem]['maximum'] + return self.data + + def get_data_per_statuses(self, code): + """ + :param code: str: response status code. Ex.: '202', '499' + :return: + """ + code_class = code[0] + if code_class == '2' or code == '304' or code_class == '1' or code == '000': + self.data['successful_requests'] += 1 + elif code_class == '3': + self.data['redirects'] += 1 + elif code_class == '4': + self.data['bad_requests'] += 1 + elif code_class == '5' or code_class == '6': + self.data['server_errors'] += 1 + else: + self.data['other_requests'] += 1 + + def get_data_per_squid_code(self, code): + """ + :param code: str: squid response code. Ex.: 'TCP_MISS', 'TCP_MISS_ABORTED' + :return: + """ + if code not in self.data: + self.charts['squid_code'].add_dimension([code, code, 'incremental']) + self.data[code] = 0 + self.data[code] += 1 + + for tag in code.split('_'): + try: + chart_key = SQUID_CODES[tag] + except KeyError: + continue + dimension_id = '_'.join(['code_detailed', tag]) + if dimension_id not in self.data: + self.charts[chart_key].add_dimension([dimension_id, tag, 'incremental']) + self.data[dimension_id] = 0 + self.data[dimension_id] += 1 + + +def get_timings(timings, time): + """ + :param timings: + :param time: + :return: + """ + if timings['minimum'] is None: + timings['minimum'] = time + if time > timings['maximum']: + timings['maximum'] = time + elif time < timings['minimum']: + timings['minimum'] = time + timings['summary'] += time + timings['count'] += 1 + + +def get_hist(index, buckets, time): + """ + :param index: histogram index (Ex. [10, 50, 100, 150, ...]) + :param buckets: histogram buckets + :param time: time + :return: None + """ + for i in range(len(index)-1, -1, -1): + if time <= index[i]: + buckets[i] += 1 + else: + break + + +def address_not_in_pool(pool, address, pool_size): + """ + :param pool: list of ip addresses + :param address: ip address + :param pool_size: current pool size + :return: True if address not in pool. False otherwise. + """ + index = bisect.bisect_left(pool, address) + if index < pool_size: + if pool[index] == address: + return False + bisect.insort_left(pool, address) + return True + bisect.insort_left(pool, address) + return True + + +def find_regex_return(match_dict=None, msg='Generic error message'): + """ + :param match_dict: dict: re.search.groupdict() or None + :param msg: str: error description + :return: tuple: + """ + return match_dict, msg + + +def check_patterns(string, dimension_regex_dict): + """ + :param string: str: + :param dimension_regex_dict: dict: ex. {'dim1': '<pattern1>', 'dim2': '<pattern2>'} + :return: list of named tuples or None: + We need to make sure all patterns are valid regular expressions + """ + if not hasattr(dimension_regex_dict, 'keys'): + return None + + result = list() + + def valid_pattern(pattern): + """ + :param pattern: str + :return: re.compile(pattern) or None + """ + if not isinstance(pattern, str): + return False + try: + return re.compile(pattern) + except re.error: + return False + + def func_search(pattern): + def closure(v): + return pattern.search(v) + + return closure + + for dimension, regex in dimension_regex_dict.items(): + valid = valid_pattern(regex) + if isinstance(dimension, str) and valid_pattern: + func = func_search(valid) + result.append(NAMED_PATTERN(description='_'.join([string, dimension]), + func=func)) + return result or None + + +def filter_data(raw_data, pre_filter): + """ + :param raw_data: + :param pre_filter: + :return: + """ + + if not pre_filter: + return raw_data + filtered = raw_data + for elem in pre_filter: + if elem.description == 'filter_include': + filtered = filter(elem.func, filtered) + elif elem.description == 'filter_exclude': + filtered = filterfalse(elem.func, filtered) + return filtered |