如何使用语法检查器测试代理PAC文件语法
时间：2020-01-09 10:42:04 来源:igfitidea点击:
如何使用命令行选项在Apple OS X/Linux/* BSD或者Unix等操作系统下测试Proxy PAC文件语法？
您可以使用Perl编写的称为pactester的工具。
此工具测试代理自动配置(PAC)文件。
浏览器使用PAC文件来确定URL的正确代理。
由于PAC文件评估机制是在浏览器内部生成的，因此无法从外部访问，因此判断浏览器将用于特定URL的代理的唯一方法是手动检查PAC文件。
但是，手动检查并不能很好地扩展规模。
Pactester解决了这个问题。
它利用JavaScript解释器和Netscape/Mozilla API评估PAC文件并自动化整个过程。
Pactester读取PAC文件，在JavaScript上下文中对其进行评估，并使用此PAC文件逻辑来确定特定URL的代理。
安装
Debian和Ubuntu Linux用户执行以下命令来安装此工具：
$ sudo apt-get install libpacparser1
输出示例：
Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: libpacparser1 0 upgraded, 1 newly installed, 0 to remove and 11 not upgraded. Need to get 395 kB of archives. After this operation, 1,339 kB of additional disk space will be used. Get:1 http://debian.osuosl.org/debian/ squeeze/main libpacparser1 amd64 1.2.6-2 [395 kB] Fetched 395 kB in 2s (153 kB/s) Selecting previously deselected package libpacparser1. (Reading database ... 281091 files and directories currently installed.) Unpacking libpacparser1 (from .../libpacparser1_1.2.6-2_amd64.deb) ... Processing triggers for man-db ... Setting up libpacparser1 (1.2.6-2) ...
有关源代码安装的说明
执行以下wget命令以下载源代码：
$ cd /tmp/ $ wget http://pactester.googlecode.com/files/pactester-1.0.8.tar.gz
输出示例：
--2012-11-20 21:34:17-- http://pactester.googlecode.com/files/pactester-1.0.8.tar.gz Resolving pactester.googlecode.com... 74.125.128.82, 2404:6800:4005:c00::52 Connecting to pactester.googlecode.com|74.125.128.82|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1214308 (1.2M) [application/x-gzip] Saving to: `pactester-1.0.8.tar.gz' 100%[============================- ] 12,14,308 352K/s in 3.4s 2012-11-20 21:34:21 (352 KB/s) - `pactester-1.0.8.tar.gz' saved [1214308/1214308]
使用tar命令解压缩tar包：
$ tar xvf pactester-1.0.8.tar.gz
输出示例：
pactester-1.0.8/ pactester-1.0.8/README pactester-1.0.8/build/ pactester-1.0.8/build/Log-Log4perl-1.08.tar.gz pactester-1.0.8/build/install.sh pactester-1.0.8/build/js-1.5.tar.gz pactester-1.0.8/build/JavaScript-SpiderMonkey-0.17.tar.gz pactester-1.0.8/pactester pactester-1.0.8/INSTALL pactester-1.0.8/COPYING pactester-1.0.8/pac_utils.js
在~/pactester目录中安装pactester，执行：
$ mkdir $HOME/pactester $ cd pactester-1.0.8/build/ $ ./install.sh $HOME/pactester
输出示例：
.... . <snip> ... Installing /home/Hyman/pactester/lib/perl/5.10.1/auto/JavaScript/SpiderMonkey/SpiderMonkey.so Installing /home/Hyman/pactester/lib/perl/5.10.1/JavaScript/SpiderMonkey.pm Installing /home/Hyman/pactester/man/man3/JavaScript::SpiderMonkey.3pm Appending installation info to /home/Hyman/pactester/lib/perl/5.10.1/perllocal.pod -e -e ########################################### >>PERLLIB=-e /home/Hyman/pactester/share/perl/5.10.1:/home/Hyman/pactester/lib/perl/5.10.1 -e I have set up PERLLIB path in pactester script, so you won't have to -e set it as an environment variable :)
如何使用pactester命令测试代理自动配置(pac)文件？
语法为：
pactester -p /path/to/proxy.pac.file -u url pactester -p /path/to/proxy.pac.file -u url -c client.ip.address.here
示例proxy.pac文件：
function FindProxyForURL(url, host) {
// Your proxy server name and port
var proxyserver = 'squidproxy1.theitroad.local.home.com:3128';
//
// Here's a list of hosts to connect via the PROXY server
//
var proxylist = new Array(
"reddit.com",
"www.theitroad.local",
"mail.google.com",
"www.pandora.com",
"www.google.com",
"www.hulu.com",
"mail.theitroad.local",
"mail.theitroad.com",
"slashdot.org"
);
// Return our proxy name for matched domains/hosts
for(var i=0; i<proxylist.length; i++) {
var value = proxylist[i];
if ( localHostOrDomainIs(host, value) ) {
return "PROXY "+proxyserver;
}
}
return "DIRECT";
}
要找出pac文件proxy.pac为URL http：//www.theitroad.local返回的代理字符串：
$ pactester -p proxy.pac -u http://www.theitroad.local
输出示例：
PROXY squidproxy1.theitroad.local.home.com:3128
要找出pac文件proxy.pac为URL http://www.google.com返回的代理字符串：
$ pactester -p proxy.pac -u http://www.google.com
输出示例：
DIRECT
测试IP地址为192.168.1.5的客户端的设置：
$ pactester -p wpad.dat -c 192.168.1.5 -u http://www.google.com
在/tmp/proxy.url.test文件中创建网址/主机列表：
http://www.theitroad.local http://theitroad.com https://mail.google.com https://www.google.com http://nas03 http://router1 http://www.pandora.com
现在，找出/tmp/proxy.url.test文件中指定的URL列表的代理设置。
$ pactester -p /var/www/html/proxy.pac -f /tmp/proxy.url.test
输出示例：
http://www.theitroad.local : PROXY squidproxy1.theitroad.local.home.com:3128 http://theitroad.com : DIRECT https://mail.google.com : PROXY squidproxy1.theitroad.local.home.com:3128 https://www.google.com : PROXY squidproxy1.theitroad.local.home.com:3128 http://nas03 : DIRECT http://router1 : DIRECT http://www.pandora.com : PROXY squidproxy1.theitroad.local.home.com:3128
