nginx hack for multiple conditions

nginx.conf

    if ($request_uri = /) { 
      set $test  A; 
    } 
  
    if ($host ~* teambox.com) { 
      set $test  "${test}B"; 
    } 
  
    if ($http_cookie !~* "auth_token") { 
      set $test  "${test}C"; 
    } 
    
    if ($test = ABC) { 
      proxy_pass http://teambox-cms.heroku.com; 
      break; 
    } 

This actually isn't a bad solution if you have more descriptive flags than A, B, C.

    if ($request_uri = /) {
      set $test  root;
    }

    if ($host ~* teambox.com) {
      set $test  "${test}+teambox.com";
    }

    if ($http_cookie !~* "auth_token") {
      set $test  "${test}+no_auth_token";
    }

    if ($test = "root+teambox.com+no_auth_token") {
      proxy_pass http://teambox-cms.heroku.com;
      break;
    }

awesome.

👍

Thank you so much, this hack is awesome! 🤘

Thank you!

What versions of nginx does this work on? I can't get it working on 1.4.7

Why not just use map instead?

👍

Awesome!

Thanks, worked great.

I had some problems with it if it was within a location statement, taking it out and putting it in the server statement helped fix it.

Thanks !

Wow

Seems, you are not familiar with map, or do not like it. More short and elegant:

":" is used just like delimiter, you can use any other symbol not used in checked variables.

map "$request_uri:$host:$http_cookie" $test {
    default 0;
    "/:teambox.com:auth_token"  1;
}

server {
    if ( $test ) {
      proxy_pass http://teambox-cms.heroku.com;
      break;
    }
}

Só precisava disso pra dar nó em pingo d agua, thks

This will help me migrate a .htaccess based referer filter to nginx; my first try caused redirect loops in Firefox but Chrome displayed the error page after giving up on the loop. I set A for the referer check, and B for the check that it isn't trying to load the error page, then I check to see if the combined variable is A, as the B check is a "not" check.
I will test the filter out tomorrow, and if it works I will be able to migrate away from Apache handling my .php files.

Edit: Worked like a charm! Thanks for the tutorial!

Thanks !

You are a god :D

Great solution! For those suggestion a map, that is great if condition variable remains the same for all checks. If not, this solution trumps map.
+1

Thanks for this but I prefer to use @songsfromthewood map solution.

@songsfromthewood's example works great, with the exception of empty strings (like referer or useragent). But for blank referer and useragent, it's still pretty good :D

for those who haven't read this yet: If Is Evil

Hi All,

I am checking the header "x-token" present from the incoming request if not i have to send 403 in nginx below is my code

if ($http_x-token = ""){
return 403;
break;
}
proxy_pass http://127.0.0.1:1234;

But here "-" is the problem so how do i achieve this. if i pass the header as "xtoken" its working as expected
Could you please any one guide on this query.

Regards,
Naveen

nkn786, try $http_x_token.

You truly are the king of kings

awesome ! 666666

Nice. Thanks

Awesome man, thanks.

Seems, you are not familiar with map, or do not like it. More short and elegant:

":" is used just like delimiter, you can use any other symbol not used in checked variables.

map "$request_uri:$host:$http_cookie" $test {
    default 0;
    "/:teambox.com:auth_token"  1;
}

server {
    if ( $test ) {
      proxy_pass http://teambox-cms.heroku.com;
      break;
    }
}

@songsfromthewood Actually no, yours does not match "test.teambox.com" while the original post does.

this is awesome!

Need explanation.... what actually this does:
if ($host ~* teambox.com) {
set $test "${test}+teambox.com";
}
Does it takes "this".teambox.com or what? Thanks!

How to write this condition?

if ($host *.teambox.com) {
set $subdomain_name = ?;
}

Thanks!