按 Accept-Language header 重定向并保留 URL 路径

Question

我正在修改我的网站，我希望 Apache Web 服务器像在 World of Tanks Europe 网站上那样重定向访问者。例如，如果我尝试打开 URL https://worldoftanks.eu/news/，它会在 news/ 之前添加 en/ 并以英文打开页面。我现在在根文件夹中的 .htaccess 文件中有什么：

Options -Indexes
RewriteEngine on
# redirect to Russian section if the visitor has Russian language
RewriteCond %{HTTP:Accept-Language} ^ru [NC]
RewriteRule ^$ /ru/ [L,R=301]
# everyone else should be redirected to the English section
RewriteRule ^$ /en/ [L,R=301]

但这仅在访问者从网站主页开始导航时才有效。有什么想法吗？

UPD1：我遵循了 CBroe 在评论中提供的建议，现在我有这样的东西：

Options -Indexes
RewriteEngine on
# redirect to Russian section if the visitor has Russian language
RewriteCond %{HTTP:Accept-Language} ^(ru|be|uk|kk) [NC]
RewriteCond %{REQUEST_URI} !^/ru/.*$
RewriteRule (.*) /ru/ [L,R=301]
# everyone else should be redirected to the English section
RewriteCond %{REQUEST_URI} !^/en/.*$
RewriteRule (.*) /en/ [L,R=301]

正如他所提到的，裸线会导致无限重定向，结果就是这样，但会导致 http://example.com/en/ru/en/ru/en/ru/en/ru/en/ru/ 重定向并出现相应的错误。当我将俄语（或条件中的任何语言）设置为优先语言时发生错误，而英语部分正常工作。

UPD2：我尝试了 !^/(ru|en)/ 请求 URI 重写条件的建议，但也失败了。也许我把它放在错误的部分？

Options -Indexes
RewriteEngine on
# redirect to Russian section if the visitor has Russian (or any other CIS language) language
RewriteCond %{HTTP:Accept-Language} ^(ru|be|uk|kk) [NC]
RewriteCond %{REQUEST_URI} !^/(ru|en)/
RewriteRule (.*) /ru/ [L,R=301]

# everyone else should be redirected to the English section
RewriteCond %{REQUEST_URI} !^/en/.*$
RewriteRule (.*) /en/ [L,R=301]

Answer 1

@CBroe 赢了！他关于在“CIS 语言”和“其他所有内容”部分中放置 !^/(ru|en)/ 条件的提示完成了这项工作。

Options -Indexes
RewriteEngine on
# redirect to Russian section if the visitor has Russian language
RewriteCond %{HTTP:Accept-Language} ^(ru|be|uk|kk) [NC]
RewriteCond %{REQUEST_URI} !^/(ru|en)/
RewriteRule (.*) /ru/ [L,R=301]

# everyone else should be redirected to the English section
RewriteCond %{REQUEST_URI} !^/(ru|en)/
RewriteRule (.*) /en/ [L,R=301]

按 Accept-Language header 重定向并保留 URL 路径

Redirect by Accept-Language header and preserve URL path

.htaccess

http-accept-language