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elb-es.py
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elb-es.py
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#!/usr/bin/env python3.6
# Sham Yavagal - SniOps 2019
import os
import sys
import boto3
import codecs
import io
import re
import json
import gzip
import shlex
import requests
from requests_aws4auth import AWS4Auth
from datetime import datetime
import logging
from elblogs.event1 import event
logger = logging.getLogger()
logger.setLevel(logging.INFO)
access_key = os.environ.get("PROD_ACCESS_KEY")
secret_key = os.environ.get("PROD_SECRET_ACCESS_KEY")
indexTimestamp = str(datetime.now()).split()[0]
params = {
"es_endpoint": "https://search-sniops-awslogs-osmilkcpm5d74tmljcrwce644i.us-east-1.es.amazonaws.com",
"Region": 'us-east-1',
"headers": {"content-type": "application/json"},
"geoip_headers": {'accept': "application/json", 'content-type': "application/json"}
}
creds = boto3.Session(aws_access_key_id=access_key,
aws_secret_access_key=secret_key).get_credentials()
awsauth = AWS4Auth(creds.access_key, creds.secret_key,
'us-east-1', 'es', session_token=creds.token)
class GetGeo():
def __init__(self, logDocTrimmed_dict, cip):
self.LogDocTrimmed_dict = logDocTrimmed_dict
self.cip = cip
try:
geo_url = "https://freegeoip.app/json" + \
'/' + self.cip
geo_resp = requests.request(
"GET", geo_url, headers=params.get("geoip_headers"))
self.georesult = json.loads(geo_resp.text)
except Exception as E:
self.georesult = "Failed To Fetch GeoIP Info"
logger.error("FAILED TO FETCH GEOIP INFO:::### " + str(E))
@property
def result(self):
return self.georesult
def doctoes(line):
if line.startswith("#"):
logging.error("START OF THE LOG FILE:::### " + line)
return None
url = params.get('es_endpoint') + '/' + params.get('index') + \
'-' + indexTimestamp + '/' + 'lambda'
log_doc_list = []
if re.search("\w*\.cloudfront.net", line):
logentry = shlex.split(line)
date_time = logentry[0] + ' ' + logentry[1]
datetime_object = datetime.strptime(
date_time, "%Y-%m-%d %H:%M:%S").isoformat()
log_doc = {"@timestamp": datetime_object, "x-edge-location": logentry[2], "sc-bytes": int(
logentry[3]), "client_ip": logentry[4], "cs_method": logentry[5], "cs_host": logentry[6], "cs_uri_stem": logentry[7],
"sc_status": int(logentry[8]), "referrer": logentry[9], "user_agent": logentry[10], "cs_uri_query": logentry[11], "cookie": logentry[12],
"x_edge_result_type": logentry[13], "x_edge_request_id": logentry[14], "x_host_header": logentry[15], "cs_protocol": logentry[16],
"cs_bytes": int(logentry[17]), "time_taken": float(logentry[18]), "x_forwarded_for": logentry[19], "ssl_protocol": logentry[20],
"ssl_cipher": logentry[21], "x_edge_response_result_type": logentry[22], "cs_protocol_version": logentry[23]}
log_doc_trimmed = {key: value for key,
value in log_doc.items() if value != '-'}
if not "Amazon-Route53-Health-Check" in log_doc_trimmed.get("user_agent"):
log_doc_trimmed_obj = GetGeo(log_doc_trimmed, log_doc_trimmed.get("client_ip"))
log_doc_trimmed["geoip"] = (log_doc_trimmed_obj.result)
print(log_doc_trimmed)
log_doc_list.append(log_doc_trimmed)
elif shlex.split(line)[1] == "sniorigin": #Replace This With Bucket Name
logentry = shlex.split(line)
date_time = datetime.strptime(logentry[2] + ' ' + logentry[3], "[%d/%b/%Y:%H:%M:%S %z]").isoformat()
Bytes = int(logentry[12]) if (logentry[12]) != '-' else (logentry[12])
object_size = int(logentry[13]) if (
logentry[13]) != '-' else (logentry[13])
request_time_ms = int(logentry[14]) if (
logentry[14]) != '-' else (logentry[14])
turnaround_time_ms = int(logentry[15]) if (logentry[15]) != '-' else (logentry[15])
verb = logentry[9].split()[0]
request = logentry[9].split()[1]
httpversion = logentry[9].split()[2]
log_doc = {"owner": logentry[0], "bucket": logentry[1], "@timestamp": date_time,
"clientip": logentry[4], "requester": logentry[5], "request_id": logentry[6], "operation": logentry[7], "key": logentry[8], "verb": verb,
"request": request, "httpversion": httpversion, "response": int(logentry[10]), "error_code": logentry[11], "bytes_sent": Bytes,
"object_size": object_size, "total_time_ms": request_time_ms, "turnaround_time_ms": turnaround_time_ms, "referrer": logentry[16],
"user-agent": logentry[17], "version_id": logentry[18]}
log_doc_trimmed = {key: value for key,
value in log_doc.items() if value != '-'}
log_doc_trimmed_obj = GetGeo(log_doc_trimmed, log_doc_trimmed.get("clientip"))
log_doc_trimmed["geoip"] = (log_doc_trimmed_obj.result)
print(log_doc_trimmed)
log_doc_list.append(log_doc_trimmed)
elif params.get("index") == "elb-logs":
logentry = shlex.split(line)
clientip = logentry[3].split(':')[0]
clientport = int(logentry[3].split(':')[1])
backendip = logentry[4].split(':')[0]
backendport = int(logentry[4].split(':')[1])
verb = logentry[12].split()[0]
request = logentry[12].split()[1]
httpversion = logentry[12].split()[2]
log_doc = {"type": logentry[0], "@timestamp": logentry[1], "elb": logentry[2], "clientip": clientip, "clientport": clientport, "backendip": backendip,
"backendport": backendport, "request_processing_time": float(logentry[5]), "backend_processing_time": float(logentry[6]),
"response_processing_time": float(logentry[7]), "response": int(logentry[8]), "backend_response": int(logentry[9]),
"received_bytes": int(logentry[10]), "sent_bytes": int(logentry[11]), "verb": verb, "request": request, "httpversion": httpversion,
"raw_request": logentry[12], "user_agent": logentry[13], "ssl_cipher": logentry[14], "ssl_protocol": logentry[15], "target_group_arn": logentry[16],
"trace_id": logentry[17], "domain_name": logentry[18], "chosen_cert_arn": logentry[19], "matched_rule_priority": [20],
"request_creation_time": logentry[21], "actions_executed": logentry[22], "redirect_url": logentry[23], "error_reason": logentry[24]}
log_doc_trimmed = {key: value for key,
value in log_doc.items() if value != '-'}
log_doc_trimmed_obj = GetGeo(log_doc_trimmed, log_doc_trimmed.get("clientip"))
log_doc_trimmed["geoip"] = (log_doc_trimmed_obj.result)
print(log_doc_trimmed)
log_doc_list.append(log_doc_trimmed)
if log_doc_list:
for doc in log_doc_list:
if not "Amazon-Route53-Health-Check" in doc.get("user_agent", "NONE"):
try:
resp = requests.post(url, auth=awsauth, json=doc,
headers=params.get('headers'))
logger.info("STATUS CODE:::### " + str(resp.status_code))
except Exception as E:
logger.error("FAILED TO POST TO ELASTICSEARCH:::#### " + str(E))
def getlogfile(event):
s3 = boto3.client('s3', aws_access_key_id=access_key,
aws_secret_access_key=secret_key)
try:
bucket = event.get("Records")[0].get("s3").get("bucket").get("name")
obj_key = event.get("Records")[0].get("s3").get("object").get("key")
if "elasticloadbalancing" in obj_key:
params['index'] = "elb-logs"
else:
params['index'] = 'cdn-logs'
compressed = True if obj_key.endswith(".gz") else False
obj_get = s3.get_object(Bucket=bucket, Key=obj_key)
body = obj_get['Body']
if compressed:
with gzip.open(body, 'rt') as file:
for line in file:
doctoes(line)
else:
for line in codecs.getreader('utf-8')(body):
doctoes(line)
except Exception as E:
logger.error("FAILED TO READ LOG FILE:::### " + str(E))
getlogfile(event)