NGINX removing images from body with Lua

joel.parker.gm · 2017-05-03T23:22:18+00:00

Why don't you try to compare tonumber(p) and i? :)On Sunday, April 30, 2017 at 12:18:47 PM UTC+8, Nishant Kumar wrote:Hi,I am using openresty/1.7.7.2 w...

NGINX removing images from body with Lua

joel.parker.gm

I currently used this script to dump the full request :

log_format replay '$remote_addr - $remote_user [$time_local] '
        '"$request" $status $body_bytes_sent '
        '"$http_referer" "$http_user_agent" $request_time '
        '<"$request_body" >"$resp_body"';

        lua_need_request_body on;

        body_filter_by_lua '
            local resp_body = ngx.arg[1]
            ngx.ctx.buffered = (ngx.ctx.buffered or "") .. resp_body
            if ngx.arg[2] then
                  ngx.var.resp_body = ngx.ctx.buffered
            end
    ';

Is it possible to remove the images stored in the body with lua before outputting to a file ? I'm trying to limit the size of the file and make it easier to debug the request / responses.

Joel

martin.gee

I believe if you look at the content header type of the request, your code can ignore those requests

On Wednesday, May 3, 2017 at 10:22:18 AM UTC-5, Joel Parker wrote:

I currently used this script to dump the full request :

log_format replay '$remote_addr - $remote_user [$time_local] '
        '"$request" $status $body_bytes_sent '
        '"$http_referer" "$http_user_agent" $request_time '
        '<"$request_body" >"$resp_body"';

        lua_need_request_body on;

        body_filter_by_lua '
            local resp_body = ngx.arg[1]
            ngx.ctx.buffered = (ngx.ctx.buffered or "") .. resp_body
            if ngx.arg[2] then
                  ngx.var.resp_body = ngx.ctx.buffered
            end
    ';

Is it possible to remove the images stored in the body with lua before outputting to a file ? I'm trying to limit the size of the file and make it easier to debug the request / responses.

Joel