正则表达式通过curl将BAN请求发送到Varnish服务器 [英] regex issue sending BAN request to Varnish server via curl
问题描述
我一直试图通过 curl 向 Varnish 服务器发送 BAN 请求，以获取无效的缓存内容.该网址包含一些正则表达式供Varnish进行检查.我已经成功发送了此请求:
I have been trying to send a BAN request via curl to the Varnish server to invalid cached content. The url contains some regex for Varnish to check against. I have been successfully sending this request:
1. curl -X BAN"https://oursite.com/product/item/(100|7|9||8|7|6|5|4|2|1)"
<!DOCTYPE html>
<html>
<head>
<title>200 Ban added</title>
</head>
<body>
<h1>Error 200 Ban added</h1>
<p>Ban added</p>
<h3>Guru Meditation:</h3>
<p>XID: 66211</p>
<hr>
<p>Varnish cache server</p>
</body>
</html>
但具有更复杂的网址
2. curl -X BAN"https://oursite.com/product/(search/home$|item/(391|1232))"
// What I'm trying to remove are:
1./product/search/home
2./product/item/391
3./product/item/1232
default.vcl
default.vcl
if (req.method == "BAN") {
if (!client.ip ~ purge) {
return(synth(403, "Not allowed."));
}
ban("req.url ~ ^"+req.url);
return(synth(200, "Ban added"));
}
清漆日志:
* << BeReq >> 163855
- Begin bereq 163854 pass
- Timestamp Start: 1450969228.080453 0.000000 0.000000
- BereqMethod BAN
- BereqURL /product/(search/home$|item/(391|1232))
- BereqProtocol HTTP/1.1
- BereqHeader User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
- BereqHeader Host: oursite.com
已成功完成curl请求，如 varnishlog 中所示，但是我不知道为什么正则表达式不起作用.没有页面被清除.谁能告诉我这是什么问题?我需要逃脱哪些字符?
The curl request has been successfully made as shown in varnishlog, but I don't know why the regex doesn't work. None of the pages are purged.
Can anyone tell me what's the problem? What characters do I need to escape?
推荐答案
正则表达式似乎没问题.
我认为您应该尝试在第一个括号后转义斜线.我假设Varnish将括号之间的表达式解释为正则表达式(很好)，而在正则表达式中，斜杠是定界符(某种特殊字符).
这可能有效:
The regex seems fine.
I think you should try to escape the slashes after the first parenthesis. I assume Varnish is interpreting the expression between parenthesis as a regex (which is fine) and in a regex slashes are delimiters (some kind of special characters).
This might work:
curl -X BAN "https://oursite.com/product/(search\/home$|item\/(391|1232))"
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