Apache RewriteCond中变量的负比较 [英] Negative Comparison of Variables in Apache RewriteCond

问题描述

我有一个Rewrite块，旨在将用户重定向到反映其语言环境的URL(如果还没有的话).这似乎需要我比较两个变量，我意识到这在RewriteCond中有点棘手，但是必须有一种优雅地做到这一点的方法，而不是拥有多个不同的规则.

I have a Rewrite block that aims to with redirect users to a URL that reflects their locale, if they aren't already. This seems to require me to compare two variables, which I realize is a little tricky in a RewriteCond, but there's gotta be a way to do this elegantly instead of having several different rules.

基本上-如果我在这里但不应该(由于地理围栏)，请重定向到所标识的路径.

Basically - if I'm here but shouldn't be (because of geofencing), redirect to the identified path.

# Snip several SetEnvIf rules for the UserLocale variable used below

RewriteCond %{REQUEST_URI} ^/(us|au|uk|eu)/$
# This is where I'm having trouble. 
# This following condition should evaluate whether the requested URI matches the StoreLocale
RewriteCond %{ENV:UserLocale} !%1
RewriteRule ^(.*)$ https://example.com/%{ENV:UserLocale}/ [R=302,L]

我知道有关组合两个变量的语法，但是我在这里还没有得到否定的测试.

I know there's some syntax about combining two variables, but I haven't been able to get a negative test here.

推荐答案

您可以使用如下规则:

RewriteCond %{ENV:UserLocale}#$1 !^([^#]+)#\1$
RewriteRule ^(us|au|uk|eu)/$ https://example.com/%{ENV:UserLocale}/ [R=302,L,NC]

这将是以下有效代码:

if ( %{ENV:UserLocale} != $1 ) {
   RewriteRule ^(us|au|uk|eu)/$ https://example.com/%{ENV:UserLocale}/ 
}

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