Linux 命令行下抓取 HTTP 流量的工具 httpry

httpry是一个专业的封包嗅探器，用C语言开发的用来用于显示和记录HTTP流量。此工具不会进行自身分析，而是用来捕获、分析、并记录流量。

它可以作为一个后台进程记录实时流量并输出到文件，由于具有轻型和灵活的特性，所以它可以很容易适应不同的应用程序。它不显示原始HTTP传输的数据，而是着重解析和显示相关数据字段的请求和响应行。

应用场景

查看用户在你的网络上在线浏览的内容
检查是否正确的服务器配置
在HTTP中使用模式的研究
关注危险下载的文件
验证HTTP策略在网络上的实施
提取的HTTP统计输出保存在捕捉文件

• CentOS/RHEL

$ yum install epel-release #安装EPEL repo
$ yum install httpry

• Debian/Ubuntu

$ apt-get install httpry httpry-tools httpry-daemon

• 安装依赖包

CentOS/RHEL

$ yum install wget gcc make libpcap libpcap-devel

Debian/Ubuntu

$ apt-get install wget gcc make git libpcap0.8-dev

• 编译httpry

创建相关数据目录

$ mkdir -p /usr/local/man/man1
$ mkdir -p /usr/man/man1/

编译httpry

$ wget http://dumpsterventures.com/jason/httpry/httpry-0.1.8.tar.gz
$ tar zvxf httpry-0.1.8.tar.gz
$ cd httpry-0.1.8
$ make
$ make install
$ mkdir /usr/local/share/httpry-0.1.8
$ mv doc scripts $_

$ httpry -h

httpry version 0.1.8 -- HTTP logging and information retrieval tool
Copyright (c) 2005-2014 Jason Bittel <jason.bittel@gmail.com>
Usage: httpry [ -dFhpqs ] [-b file ] [ -f format ] [ -i device ] [ -l threshold ]
 [ -m methods ] [ -n count ] [ -o file ] [ -P file ] [ -r file ]
 [ -t seconds] [ -u user ] [ 'expression' ]

 -b file write HTTP packets to a binary dump file
 -d run as daemon
 -f format specify output format string
 -F force output flush
 -h print this help information
 -i device listen on this interface
 -l threshold specify a rps threshold for rate statistics
 -m methods specify request methods to parse
 -n count set number of HTTP packets to parse
 -o file write output to a file
 -p disable promiscuous mode
 -P file use custom PID filename when running in daemon mode 
 -q suppress non-critical output
 -r file read packets from input file
 -s run in HTTP requests per second mode
 -t seconds specify the display interval for rate statistics
 -u user set process owner
 expression specify a bpf-style capture filter

Additional information can be found at:
 http://dumpsterventures.com/jason/httpry

监听指定的网络接口，并且实时显示捕获到的HTTP请求与响应的包

$ httpry -i eth0
httpry version 0.1.8 -- HTTP logging and information retrieval tool
Copyright (c) 2005-2014 Jason Bittel <jason.bittel@gmail.com>
Starting capture on eth0 interface
2016-05-25 13:24:25	192.168.119.100	23.91.98.188	>	GET	hi-linux.com	/2016/05/16/Linux%E5%91%BD%E4%BB%A4%E8%A1%8C%E5%AD%A6%E4%B9%A0%E7%A5%9E%E5%99%A8tldr/	HTTP/1.1	-	-
2016-05-25 13:24:25	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:24:58	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:24:58	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:24:59	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:24:59	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:25:00	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:25:00	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
^CCaught SIGINT, shutting down...
92 packets received, 0 packets dropped, 8 http packets parsed
87.6 packets/min, 7.6 http packets/min

使用-b或-o选项保存数据包。-b选项将数据包以二进制文件的形式保存下来，这样可以使用httpry软件打开文件以浏览。另一方面，-o选项将数据以可读的字符文件形式保存下来。

以二进制形式保存文件

$ httpry -i eth0 -b output.dump

浏览所保存的HTTP数据包文件

$ httpry -r output.dump

注意:不需要根用户权限就可以使用-r选项读取数据文件。

将httpry数据以字符文件保存

$ httpry -i eth0 -o /tmp/output.txt

想监视指定的HTTP方法(如：GET，POST，PUT，HEAD，CONNECT等)，使用-m选项

$ httpry -i eth0 -m get,head

httpry version 0.1.8 -- HTTP logging and information retrieval tool
Copyright (c) 2005-2014 Jason Bittel <jason.bittel@gmail.com>
Starting capture on eth0 interface
2016-05-25 13:30:57	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:30:57	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:30:58	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:30:58	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:30:59	192.168.119.100	23.91.98.188	>	HEAD	www.hi-linux.com	/	HTTP/1.0	-	-
2016-05-25 13:30:59	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
2016-05-25 13:31:09	192.168.119.100	23.91.98.188	>	GET	hi-linux.com	/2016/05/16/Linux%E5%91%BD%E4%BB%A4%E8%A1%8C%E5%AD%A6%E4%B9%A0%E7%A5%9E%E5%99%A8tldr/	HTTP/1.1	-	-
2016-05-25 13:31:09	23.91.98.188	192.168.119.100	<	-	-	-	HTTP/1.1	200	OK
^CCaught SIGINT, shutting down...
130 packets received, 0 packets dropped, 16 http packets parsed
185.7 packets/min, 22.9 http packets/min

分析httpry记录

如果是编译安装，有一个perl脚本用来帮助我们分析httpry输出。该脚本在/usr/local/share/httpry-0.1.8/scripts/目录下。 该脚本功能有

hostname : 显示一些列唯一主机名
find_proxies：检测web代理
search_terms：查找并计算在搜索服务中输入搜索词
content_analysis：查找包含特定关键字的URI
xml_output：以xml格式输出
log_summary：生成日志摘要
db_dump：将日志转存到mysql数据库中

在使用这些脚本前，先使用-o选项运行一段时间。一旦得到输出，可运行脚本分析

• 产生摘要报表

$ cd /usr/local/share/httpry-0.1.8/scripts/
$ perl ./parse_log.pl -p plugins/log_summary.pm /tmp/output.txt

parse_log.pl执行完后，会在/usr/local/share/httpry-0.1.8/scripts/目录下生成分析结果文件log_summary.txt。看起来像下面这样

$ cat log_summary.txt 

LOG SUMMARY

Generated: Wed May 25 13:57:40 2016
Total lines: 14
Total run time: 0.0 secs


REQUESTS BY HOUR

 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 
 |----|----|----|----|----|----|----|----|----|----|----|
 00 01 02 03 04 05 06 07 08 09 10 11 

 0% 100% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 
 |----|----|----|----|----|----|----|----|----|----|----|
 12 13 14 15 16 17 18 19 20 21 22 23 


15/5 VISITED HOSTS

2	28.6%	hi-linux.com
2	28.6%	www.hi-linux.com
1	14.3%	www.163.com
1	14.3%	www.qq.com
1	14.3%	www.baidu.com


15/1 TOP TALKERS

7	100.0%	192.168.119.100


15/1 RESPONSE CODES

7	100.0%	200

• 产生所有报表

$ perl ./parse_log.pl -d plugins /tmp/output.txt
$ ls -l *.txt

parse_log.pl执行完后，会在httpry-0.1.8/scripts目录下生成一些分析结果文件(*.txt/xml)。