Python脚本实现下载合并SAE日志

程序员文章站 2022-05-19 23:05:05

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由于一些原因，需要SAE上站点的日志文件，从SAE上只能按天下载，下载下来手动处理比较蛋疼，尤其是数量很大的时候。还好SAE提供了API可以批量获得日志文件下载地址，刚刚写了python脚本自动下载和合并这些文件

调用API获得下载地址

文档位置在这里

设置自己的应用和下载参数

请求中需要设置的变量如下

复制代码代码如下:

生成请求地址

请求地址生成方式可以看一下官网的要求：

1.将参数排序
2.生成请求字符串，去掉&
3.附加access_key
4.请求字符串求md5，形成sign
5.把sign增加到请求字符串中

具体实现代码如下

复制代码代码如下:

params = dict()
params['act'] = 'log'
params['appname'] = appname
params['from'] = from_date
params['to'] = to_date
params['type'] = url_type

if url_type == 'http':
params['type2'] = url_type2

params = collections.OrderedDict(sorted(params.items()))

request = ''
for k,v in params.iteritems():
request += k+'='+v+'&'

sign = request.replace('&','')
sign += secret_key

md5 = hashlib.md5()
md5.update(sign)
sign = md5.hexdigest()

request = api_url + request + 'sign=' + sign

if response['errno'] != 0:
print '[!] '+response['errmsg']
exit()

print '[#] request success'

下载日志文件

SAE将每天的日志文件都打包成tar.gz的格式，下载保存下来即可，文件名以日期.tar.gz命名

复制代码代码如下:

log_files = list()

for down_url in response['data']:
file_name = re.compile(r'\d{4}-\d{2}-\d{2}').findall(down_url)[0] + '.tar.gz'
log_files.append(file_name)
data = urllib2.urlopen(down_url).read()
with open(file_name, "wb") as file:
file.write(data)

print '[#] you got %d log files' % len(log_files)

合并文件

合并文件方式用trafile库解压缩每个文件，然后把文件内容附加到access_log下就可以了

复制代码代码如下:

# compress these files to access_log
access_log = open('access_log','w');

for log_file in log_files:
tar = tarfile.open(log_file)
log_name = tar.getnames()[0]
tar.extract(log_name)
# save to access_log
data = open(log_name).read()
access_log.write(data)
os.remove(log_name)

print '[#] all file has writen to access_log'

完整代码

复制代码代码如下:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Author: Su Yan
# @Date: 2014-01-17 12:05:19
# @Last Modified by: Su Yan
# @Last Modified time: 2014-01-17 14:15:41

import os
import collections
import hashlib
import urllib2
import json
import re
import tarfile

# encode request
params = dict()
params['act'] = 'log'
params['appname'] = appname
params['from'] = from_date
params['to'] = to_date
params['type'] = url_type

if url_type == 'http':
params['type2'] = url_type2

params = collections.OrderedDict(sorted(params.items()))

request = ''
for k,v in params.iteritems():
request += k+'='+v+'&'

sign = request.replace('&','')
sign += secret_key

md5 = hashlib.md5()
md5.update(sign)
sign = md5.hexdigest()

request = api_url + request + 'sign=' + sign

# request api
response = urllib2.urlopen(request).read()
response = json.loads(response)

if response['errno'] != 0:
print '[!] '+response['errmsg']
exit()

print '[#] request success'

# download and save files
log_files = list()

print '[#] you got %d log files' % len(log_files)

# compress these files to access_log
access_log = open('access_log','w');

for log_file in log_files:
tar = tarfile.open(log_file)
log_name = tar.getnames()[0]
tar.extract(log_name)
# save to access_log
data = open(log_name).read()
access_log.write(data)
os.remove(log_name)

print '[#] all file has writen to access_log'