Nginx redirect URL with specific query parameter on url

Question

Nginx, I am trying to redirect one url matching the query parameter but it doesn't work.

http://www.example.org/xyz?abc=123&color="<K>" to the below URL http://www.example.org/anything/something).

I tried below but it didn't work.

location = /xyz {
    if ($args ~* "^&color="<K>") {
        rewrite ^.*$ /anything/something redirect;
    }
}

Anyone can help on it?

Richard Smith · Accepted Answer · 2019-02-08 10:39:33Z

1

The characters such as ", <, and > are URL encoded in the original request and remain encoded in the $args variable.

Also, the ^& in your regular expression, anchors the & to the beginning of the query string, whereas there is actually another parameter in front of it.

The following example appears to work correctly:

location = /xyz {
    if ($args ~* "&color=%22%3CK%3E%22") {
        ...
    }
}

Alternatively, you can test the value of the color parameter directly using:

location = /xyz {
    if ($arg_color = '%22%3CK%3E%22') {
        ...
    }
}

answered Feb 8, 2019 at 10:39

Richard Smith

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1 Comment

CKR Over a year ago

I tried for below also but didnt help out with below. example.org/xyz?abc=123&color=K to example.org/anything/something location = /xyz { if ($args ~* "&color=K") { rewrite ^.*$ /anything/something redirect; } }

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