当'index.html'被剥离时，如何删除'/folder/index.html'的尾部斜杠？

Question

我有一个具有以下文件/文件夹结构的静态站点：

• index.html
• /foobar/
  • index.html
  • bob.html
  • alice.html

我想实现以下目标：

• 删除所有.html 扩展。 ✔ 有效
• 删除index.html（分别为index）。 ✔ 有效
• 我希望文件结尾没有斜杠。 ✔ 有效
  • 如果有人添加了斜杠，则重定向到不带斜杠的 URL。 ✘ 不起作用
• 我希望“文件夹”（实际上是文件夹内的 index.html 文件）结束时没有斜杠。 ✘ 不起作用
  • 如果有人添加了斜杠，则重定向到不带斜杠的 URL。 ✘ 不起作用

所以以下 URL 应该可以工作：

• example.com/（其实是：/index.html）
• example.com/foobar（其实是：/foobar/index.html）
• example.com/foobar/bob（其实是：/foobar/bob.html）
• example.com/foobar/alice（其实是：/foobar/alice.html）

以下请求应重定向 (301)：

• example.com/foobar/ 重定向到：example.com/foobar)
• example.com/foobar/bob/ 重定向到：example.com/foobar/bob)
• example.com/foobar/alice/ 重定向到：example.com/foobar/alice)

我看到当文件/foobar.html存在时这会产生问题：当有人访问/foobar时，不清楚是请求目录还是文件。不过，我会确保这永远不会发生。

---

目前，我有这个.htaccess：

# Turn MultiViews off. (MultiViews on causes /abc to go to /abc.ext.) 
Options +FollowSymLinks -MultiViews

# It stops DirectorySlash from being processed if mod_rewrite isn't. 
<IfModule mod_rewrite.c>

    # Disable mod_dir adding missing trailing slashes to directory requests.
    DirectorySlash Off

    RewriteEngine On

    # If it's a request to index(.html) 
    RewriteCond %{THE_REQUEST} \ /(.+/)?index(\.html)?(\?.*)?\  [NC]
    # Remove it. 
    RewriteRule ^(.+/)?index(\.html)?$ /%1 [R=301,L]

    # Add missing trailing slashes to directories if a matching .html does not exist. 
    # If it's a request to a directory. 
    RewriteCond %{SCRIPT_FILENAME}/ -d
    # And a HTML file does not (!) exist.
    RewriteCond %{SCRIPT_FILENAME}.html !-f
    # And there is not trailing slash redirect to add it. 
    RewriteRule [^/]$ %{REQUEST_URI}/ [R=301,L]

    # Remove HTML extensions. 
    # If it's a request from a browser, not an internal request by Apache/mod_rewrite. 
    RewriteCond %{ENV:REDIRECT_STATUS} ^$
    # And the request has a HTML extension. Redirect to remove it. 
    RewriteRule ^(.+)\.html$ /$1 [R=301,L]

    # If the request exists with a .html extension. 
    RewriteCond %{SCRIPT_FILENAME}.html -f
    # And there is no trailing slash, rewrite to add the .html extension. 
    RewriteRule [^/]$ %{REQUEST_URI}.html [QSA,L]

</IfModule>

我必须在我的.htaccess 中更改/删除/添加什么？我不太明白。我试图删除注释“如果匹配的 .html 不存在，则在目录中添加缺少的尾部斜杠”的块，但这没有帮助。

Answer 1

在# Add missing trailing slashes to directories if a matching .html does not exist. 规则的正上方，尝试添加此规则，当存在 html 文件且请求不是目录且尾部有斜杠时重定向：

# if request has a trailing slash
RewriteCond %{REQUEST_URI} ^/(.*)/$
# but it isn't a directory
RewriteCond %{DOCUMENT_ROOT}/%1 !-d
# and if the trailing slash is removed and a .html appended to the end, it IS a file
RewriteCond %{DOCUMENT_ROOT}/%1.html -f
# redirect without trailing slash
RewriteRule ^ /%1 [L,R=301]

这不应该与它后面的重定向规则冲突，因为它的条件检查正好相反。

---

编辑：

要处理 index.html 的事情，您需要更改您拥有的这条规则，即附加尾部斜杠：

# Add missing trailing slashes to directories if a matching .html does not exist. 
# If it's a request to a directory. 
RewriteCond %{SCRIPT_FILENAME}/ -d
# And a HTML file does not (!) exist.
RewriteCond %{SCRIPT_FILENAME}.html !-f
# And there is not trailing slash redirect to add it. 
RewriteRule [^/]$ %{REQUEST_URI}/ [R=301,L]

收件人：

# Add missing trailing slashes to directories if a matching .html does not exist. 
# If it's a request to a directory. 
RewriteCond %{REQUEST_FILENAME}/ -d
# And a HTML file does not (!) exist.
RewriteCond %{REQUEST_FILENAME}/index.html !-f
# And there is not trailing slash redirect to add it. 
RewriteRule [^/]$ %{REQUEST_URI}/ [R=301,L]    

这会在添加尾部斜杠之前检查目录中的index.html 文件是否缺失。您必须拥有这个的原因是information disclosure security issue when missing the trailing slash will actually expose all of your directory contents if you don't have the trailing slash。现在，添加这些规则以在有 index.html 时删除尾部斜杠：

RewriteCond %{REQUEST_FILENAME} -d
# And a HTML file exists.
RewriteCond %{REQUEST_FILENAME}/index.html -f
# And there is a trailing slash redirect to remove it. 
RewriteRule ^(.*?)/$ /$1 [R=301,L]    

现在添加这些规则以在没有尾部斜杠时显式显示index.html（注意规则标志中没有R=301）：

RewriteCond %{REQUEST_FILENAME} -d
# And a HTML file exists.
RewriteCond %{REQUEST_FILENAME}/index.html -f
# And there is no trailing slash show the index.html. 
RewriteRule [^/]$ %{REQUEST_URI}/index.html [L]