problem with requests that have a . in the end of the domain

[Mauro Stettler]

thanks a lot, that works perfectly, even with my old version 0.6.35

mauro




2009/10/2 Igor Sysoev <is at rambler-co.ru>:
> On Fri, Oct 02, 2009 at 11:34:57AM +0800, Mauro Stettler wrote:
>
>> hi
>>
>> i am currently experiencing some strange behavior if a user requests
>> our domain with a . in the end of the domain. the actual problem is
>> that our php code can't really get along with that . in the end of the
>> domain. so i tried creating an nginx rule that fixes this by doing a
>> redirect to the correct domain. i tried multiple things, first i just
>> left our actual production vhost untouched and added an additional one
>> with the same server_name but with a . in the end of the domain, like
>> this:
>>
>> server {
>>   server_name mydomain;
>>   ...
>> }
>>
>> server {
>>   server_name mydomain.;
>>
>>   rewrite . http://mydomain$request_uri permanent;
>> }
>>
>> but i found out that the requests never reach the vhost mydomain., i
>> also tried to switch the order of those two, but all requests always
>> go to the vhost mydomain without .
>>
>> then another thing i tried was to catch the bad request based on the
>> $host variable like this:
>>
>> server {
>>   if ($host ~ "^mydomain\.$")
>>   {
>>     rewrite . http://mydomain$request_uri permanent;
>>   }
>> }
>>
>> but now when i check the rewrite log i see that this $host variable
>> doesn't contain the . even if the request did. this means i request
>> http://mydomain. in my browser and in the rewrite log i see:
>>
>> 2009/10/01 12:23:55 [notice] 8238#0: *3 "^mytdomain\.$" does not match
>> "mydomain", client: 192.168.56.1, server: mydomain, request: "GET /
>> HTTP/1.1", host: "mydomain."
>>
>> i am sure that the browser does not parse this . out, because the php
>> can see it. and in the end of the above log line you can also see
>> host: "mydomain.".
>>
>>
>> does anybody maybe have an idea what else i could do to make sure that
>> http://mydomain. gets redirected to http://mydomain?
>
> Yes, server_name ignores trailing dot. The dot is removed from $host too.
> Therefore you should unchanged $http_host:
>
> server {
> -   if ($host ~ "^mydomain\.$")
> +   if ($http_host = mydomain.)
>   {
> -     rewrite . http://mydomain$request_uri permanent;
> +     rewrite . http://mydomain$request_uri? permanent;
>   }
>  }
>
> Also if you use proxy for PHP, then you may edit "Host" header:
>     proxy_set_header  Host  $host;
>
> however, you can do the same with FastCGI.
>
>
> --
> Igor Sysoev
> http://sysoev.ru/en/
>
>