如何阻止 RewriteRule 进入无限循环？
假设我的服务器上有一个名为 FILE%20NAME[1].png 的文件。
浏览器请求 FILE%20NAME%5B1%5D.png，转义方括号，Apache 将其解释为 FILE NAME[1].png，当然找不到。
我知道我应该重命名该文件，但是如何编写重定向规则以在 .htaccess 中快速修复？ 我尝试了
RewriteRule ^folder/FILE\sNAME\[1\].png /folder/FILE\%20NAME\[1\].png [R=301,QSA,L,NE]
这会导致无限循环，因为重写的文件名仍然符合规则。
Lets say I have a file named FILE%20NAME[1].png on my server.
The browser requests FILE%20NAME%5B1%5D.png, escaping the square brackets, which Apache interprets as FILE NAME[1].png and of course cannot find.
I know I should just rename the file, but how would I write a redirect rule for a quick fix in .htaccess?
I tried
RewriteRule ^folder/FILE\sNAME\[1\].png /folder/FILE\%20NAME\[1\].png [R=301,QSA,L,NE]
which results in an endless loop because the rewritten filename still matches the rule.
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评论（3）
您需要转义
%（百分号）符号 - 因为否则%20会被解释为（空格）。%转义为%25，将%20替换为%2520应该可以解决问题。另请参阅：百分比编码。
You need to escape the
%(percent) sign - because otherwise%20gets interpreted as(space).%escapes to%25, replacing%20for%2520should do the trick.See also: Percent-encoding.
你一开始就误解了这个问题——问题不在于括号被转义。发送以获取文件系统上名为“FILE%20NAME[1].png”的文件的正确请求应为 URL 中的“FILE%2520NAME%5B1%5D.png”。
如果您只是使用了
Alias或非重定向RewriteRule那么循环就不会出现问题。我非常确定，如果你按照问题 1 中所说的处理，那么也不会有循环问题，因为当你发回正确的重定向目标时，新的请求 URL 将包含
%2520（解码：%20），与\s不匹配，因此该规则不适用。< /p>You're mistaken about the problem to begin with -- the problem isn't that the brackets are escaped. The proper request to send to get a file named "FILE%20NAME[1].png" on the filesystem would be "FILE%2520NAME%5B1%5D.png" in the URL.
If you just used an
Aliasor a non-redirectRewriteRulethen there would be no problem with loops.I'm pretty certain that if you take care of what I said in problem 1, then there won't be a problem with loops either, because when you send back the proper redirect target, then the new request URL will contain
%2520(decoded:%20), which won't be matched by\s, and so the rule won't apply.