Use of replace_filter in Lua code

[code_junkie]

Hi,

1. I am running Lua code on Nginx server, and want to replace some text in the body response. But I don't want to expose the regex in conf file. So is there a workaround to add replace_filter inside content_by_lua_block or somewhere else in lua code?

Code in my conf file:

location @test{
    content_by_lua_block {
        require("lua.code.path").content_by_lua()
    }
    replace_filter "search_term" "replace_term";
}

2. Also I want to use nginx context variables in both search and replace terms for the filter, is this possible?

Something like : replace_filter $var1 $var2;

I know this topic has been asked before on the forum, but still wanted to confirm again if there are any advancements on this.

Thanks in advance.

[周俊]

you can get from my code . github openstar body_filter …

code_junkie <giri...@gmail.com>于2020年5月10日 周日12:15写道：

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[code_junkie]

Thanks for the response, but i see that you are using "ngx.re.gsub" which i believe doesn't work on streaming bodies and my problem is use of replace-filter-nginx-module (which has streaming bodies support via sregex library) in lua code.

On Saturday, May 9, 2020 at 9:51:02 PM UTC-7, 周俊 wrote:

you can get from my code . github openstar body_filter …

code_junkie <giri...@gmail.com>于2020年5月10日 周日12:15写道：

Hi,

1. I am running Lua code on Nginx server, and want to replace some text in the body response. But I don't want to expose the regex in conf file. So is there a workaround to add replace_filter inside content_by_lua_block or somewhere else in lua code?

Code in my conf file:

location @test{
    content_by_lua_block {
        require("lua.code.path").content_by_lua()
    }
    replace_filter "search_term" "replace_term";
}

2. Also I want to use nginx context variables in both search and replace terms for the filter, is this possible?

Something like : replace_filter $var1 $var2;

I know this topic has been asked before on the forum, but still wanted to confirm again if there are any advancements on this.

Thanks in advance.

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