能否通过mod-rewrite修改REQUEST_METHOD？（HTTPD 2.4.6）

Absolutely, this is totally feasible in Apache HTTPD 2.4.6—let’s fix the issues in your current setup and get this working properly.

First, let’s address a common typo that might have been tripping you up: Apache uses %{REQUEST_URI} (all caps) for the request path variable, not %{Request_url}. That’s probably one reason your rules weren’t matching as expected.

Here’s the corrected configuration you need:

RewriteEngine On

# Match the target URL path, POST method, and custom header
RewriteCond %{REQUEST_URI} ^/sometext/
RewriteCond %{REQUEST_METHOD} POST
RewriteCond %{HTTP:myheader} =true
# Override the request method to PUT
RewriteRule ^ - [E=REQUEST_METHOD:PUT]

Let’s break down what each part does: #

• RewriteEngine On: Enables the mod_rewrite module—this is non-negotiable for any rewrite rules to run.
• First RewriteCond: Targets requests where the URI starts with /sometext/ (adjust the path if your actual target is different).
• Second RewriteCond: Filters for only POST requests.
• Third RewriteCond: Checks that the custom myheader is exactly equal to true (the = ensures an exact match; omit it if you need partial matching).
• RewriteRule ^ - [E=REQUEST_METHOD:PUT]: The ^ - means we don’t modify the request URL at all. The E flag sets the REQUEST_METHOD environment variable to PUT, which Apache will use for the rest of the request processing.

Quick checks to ensure this works: #

1. Verify mod_rewrite is loaded: Run httpd -M in your terminal and look for rewrite_module (shared) in the output. If it’s missing, enable it in your Apache config (usually with LoadModule rewrite_module modules/mod_rewrite.so).
2. .htaccess permissions: If you’re using an .htaccess file, make sure the parent directory has AllowOverride FileInfo or AllowOverride All set in your main Apache config—otherwise, the rewrite rules will be ignored.
3. Test with curl: Validate the setup using this command (replace yourdomain.com with your actual server):

   curl -X POST -H "myheader: true" http://yourdomain.com/sometext/test -v
   

   Check the server response logs—you should see the request method logged as PUT instead of POST.

This approach works reliably in Apache 2.4.6 because the REQUEST_METHOD environment variable is mutable via mod_rewrite’s E flag, and Apache respects this modified value during request handling.

内容的提问来源于stack exchange，提问作者aditya