Question

我在我的网站上有许多以数字结尾的pdf，尽管它们是相同的pdf。

我想通过.htaccess（使用Files或FilesMatch）将Canonical Link添加到以相应pdf的数字结尾的pdf

我认为模式必须是{anything} - {digit} .pdf

例如：

<Files my-pdf-name-ends-with-1.pdf>
    Header add Link '<https://www.website.com/pdf/my-pdf-name-ends-with.pdf>; rel="canonical"'
</Files>
<Files my-pdf-name-ends-with-2.pdf>
    Header add Link '<https://www.website.com/pdf/my-pdf-name-ends-with.pdf>; rel="canonical"'
</Files>

<Files newpdf45-that-ends-with-2.pdf>
    Header add Link '<https://www.website.com/pdf/newpdf45-that-ends-with.pdf>; rel="canonical"'
</Files>
<Files newpdf45-that-ends-with-77.pdf>
    Header add Link '<https://www.website.com/pdf/newpdf45-that-ends-with.pdf>; rel="canonical"'
</Files>

<Files other-pdf-name-that-ends-with-digit-45.pdf>
    Header add Link '<https://www.website.com/pdf/other-pdf-name-that-ends-with-digit.pdf>; rel="canonical"'
</Files>
<Files other-pdf-name-that-ends-with-digit-34.pdf>
    Header add Link '<https://www.website.com/pdf/other-pdf-name-that-ends-with-digit.pdf>; rel="canonical"'
</Files>

谢谢！

Answer 1

要根据请求的文件名动态添加标题链接，您可以使用此

 <FilesMatch "^(?<uripart[^0-9]+)[0-9]+\.pdf$">


Header add Link  '<https://www.website.com/pdf/%{env:MATCH_URIPART}.pdf >;rel="canonical"'
</FilesMatch>

uripart是我们从请求的pdf文件中捕获的uri字符串的一部分，我们使用ENV:MATCH变量在标题目标中使用它。

Answer 2

我的解决方案

<FilesMatch "^(?<uripart>[^0-9]+)(-)[0-9]+\.pdf$">
  <If "%{REQUEST_URI} =~ m#^/path/to/pdfs/#">
    RewriteRule .* - [E=FILENAME:https://%{HTTP_HOST}/path/to/pdfs/%{ENV:MATCH_URIPART}\.pdf]
    Header set Link '<%{FILENAME}e>; rel="canonical"'
  </If>
</FilesMatch>
<FilesMatch "^(?<uripart>[^0-9]+)\.pdf$">
  <If "%{REQUEST_URI} =~ m#^/path/to/pdfs/#">
    RewriteRule .* - [E=FILENAME:https://%{HTTP_HOST}%{REQUEST_URI}]
    Header set Link '<%{FILENAME}e>; rel="canonical"'
  </If>
</FilesMatch>

.htaccess将自定义标题添加到File指令匹配模式

2 个答案: