解析具有2个ip地址的apache日志

时间:2013-02-15 06:47:44

标签: python apache

我有一个我正在尝试解析的apache日志文件。我找到了一些不同的方法,包括apachelog,两个答案herethis。使用这些方法中的任何一种,我都能够解析日志中的大多数行。但是,有些行有2个ip地址:

xxx.xx.xx.xxx, yy.yyy.yy.yyy - - [14/Feb/2013:03:55:21 +0000] "GET /alink HTTP/1.0" 200 90210 "http://www.google.com/search" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.4 (KHTML, like Gecko; Google Web Preview) Chrome/22.0.1229 Safari/537.4"

提到的所有方法都无法正确解析此行。 (我甚至尝试过apachelog的virtualhost选项)。有什么建议?我正在使用我提到的后一种方法(但我愿意接受任何事情),例如:

parts = [
    r'(?P<host>\S+)',                   # host %h
    r'\S+',                             # indent %l (unused)
    r'(?P<user>\S+)',                   # user %u
    r'\[(?P<time>.+)\]',                # time %t
    r'"(?P<request>.+)"',               # request "%r"
    r'(?P<status>[0-9]+)',              # status %>s
    r'(?P<size>\S+)',                   # size %b (careful, can be '-')
    r'"(?P<referer>.*)"',               # referer "%{Referer}i"
    r'"(?P<agent>.*)"',                 # user agent "%{User-agent}i"
    ]
    pattern = re.compile(r'\s+'.join(parts)+r'\s*\Z')

    for line in open(log):
        try:    
            m = pattern.match(line)
            if m:
                res = m.groupdict()
                data.append(res)
            if not m:
                print line
        except:
            print line

1 个答案:

答案 0 :(得分:3)

您可以修改列表中正则表达式的第一个组件,以允许以逗号分隔的主机列表。以下适用于您的示例行:

import re
parts = [
    r'(?P<host>\S+(,\s*\S+)*)',         # comma-separated list of hosts                             
    r'\S+',                             # indent %l (unused)                
    r'(?P<user>\S+)',                   # user %u                           
    r'\[(?P<time>.+)\]',                # time %t                           
    r'"(?P<request>.+)"',               # request "%r"                      
    r'(?P<status>[0-9]+)',              # status %>s                        
    r'(?P<size>\S+)',                   # size %b (careful, can be '-')     
    r'"(?P<referer>.*)"',               # referer "%{Referer}i"             
    r'"(?P<agent>.*)"',                 # user agent "%{User-agent}i"       
]
pattern = re.compile(r'\s+'.join(parts)+r'\s*\Z')

test = 'xxx.xx.xx.xxx, yy.yyy.yy.yyy - - [14/Feb/2013:03:55:21 +0000] "GET /alink HTTP/1.0" 200 90210 "http://www.google.com/search" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.4 (KHTML,like Gecko; Google Web Preview) Chrome/22.0.1229 Safari/537.4"'
m = pattern.match(test)
res = m.groupdict()

完成上述命令后,res['host']包含xxx.xx.xx.xxx, yy.yyy.yy.yyy。如果您需要单独的主机地址,可以使用res['host'].split(',')获取地址列表。