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1. Ov3rfly
   Member
   Posted 7 months ago #
   

   Weird, is that a know issue?

   http://wordpress.org/extend/plugins/contact-form-7/

2. Takayuki Miyoshi
   Member
   Plugin Author
   Posted 7 months ago #
   

   I'm not sure what you meant. Why issue?

3. Ov3rfly
   Member
   Posted 7 months ago #
   

   Sorry for unclear description.

   [_remote_ip] gives me the ip of my webserver, I expected the ip of the user who fills in the form.

4. Ov3rfly
   Member
   Posted 7 months ago #
   

   Took a look at the module in special-mail-tags.php

   There $_SERVER['REMOTE_ADDR'] is used. This can cause the described issue, it returns an internal proxy-ip of the provider (actually not my webserver) in my case. See e.g. here.

   Possible replacement for current [_remote_ip] handling:
   

   if ( '_remote_ip' == $name ) {
   	$_ip_addr = $_SERVER['REMOTE_ADDR'];
   	if ( array_key_exists( 'HTTP_X_FORWARDED_FOR', $_SERVER ) )
   		$_ip_addr = array_pop( explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
   	$output = preg_replace( '/[^0-9a-f.:, ]/', '', $_ip_addr );
   }

   Added also another field [_remote_host] which returns the hostname, if possible, otherwise the ip:
   

   elseif ( '_remote_host' == $name ) {
   	$_ip_addr = $_SERVER['REMOTE_ADDR'];
   	if ( array_key_exists( 'HTTP_X_FORWARDED_FOR', $_SERVER ) )
   		$_ip_addr = array_pop( explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
   	$output = @gethostbyaddr( $_ip_addr );
   }

   Example mail-tags: IP: [_remote_host] ([_remote_ip])
   Example result: IP: some.provider.domain.net (xx.xxx.xxx.xx)

   Feel free to use the code. Thanks for your great plugin!

5. Takayuki Miyoshi
   Member
   Plugin Author
   Posted 7 months ago #
   

   That makes sense. Thank you.

6. Ov3rfly
   Member
   Posted 7 months ago #
   

   After some more research it turns out that this problem is known to WordPress developers since quite a while with no solution yet available.

   A comment has been added to php source of /wp-includes/comment.php which points to http://core.trac.wordpress.org/ticket/9235

   A possible "easy" solution besides patching wp-config.php or similar seems to be a plugin like Proxy Real IP: http://wordpress.org/extend/plugins/proxy-real-ip/

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