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try content-length nil

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wiaamm
2025-12-14 11:50:57 +02:00
parent 57260d6193
commit 9bacadce41
1 changed files with 4 additions and 12 deletions
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16
attachments/kong/plugins/open-appsec-waf-kong-plugin/handler.lua
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@@ -250,10 +250,9 @@ function NanoHandler.body_filter(conf)
ctx.cleanup_needed = true ctx.cleanup_needed = true
if ctx.response_buffer and #ctx.response_buffer > 0 then if ctx.response_buffer and #ctx.response_buffer > 0 then
local buffered_data = table.concat(ctx.response_buffer) local buffered_data = table.concat(ctx.response_buffer)
local original_content_length = tonumber(ngx.header["Content-Length"]) or #buffered_data ngx.header["Content-Length"] = nil
local total_diff = ctx.content_length_diff or 0
ngx.header["Content-Length"] = original_content_length + total_diff
ngx.arg[1] = buffered_data ngx.arg[1] = buffered_data
ctx.response_buffer = nil
end end
return return
end end
@@ -264,7 +263,6 @@ function NanoHandler.body_filter(conf)
if chunk and #chunk > 0 then if chunk and #chunk > 0 then
ctx.body_buffer_chunk = ctx.body_buffer_chunk or 0 ctx.body_buffer_chunk = ctx.body_buffer_chunk or 0
ctx.content_length_diff = ctx.content_length_diff or 0
ctx.body_seen = true ctx.body_seen = true
table.insert(ctx.response_buffer, chunk) table.insert(ctx.response_buffer, chunk)
@@ -272,10 +270,8 @@ function NanoHandler.body_filter(conf)
local verdict, response, modifications = nano.send_body(session_id, session_data, chunk, nano.HttpChunkType.HTTP_RESPONSE_BODY) local verdict, response, modifications = nano.send_body(session_id, session_data, chunk, nano.HttpChunkType.HTTP_RESPONSE_BODY)
if modifications then if modifications then
local original_length = #chunk
chunk = nano.handle_body_modifications(chunk, modifications, ctx.body_buffer_chunk) chunk = nano.handle_body_modifications(chunk, modifications, ctx.body_buffer_chunk)
local modified_length = #chunk local modified_length = #chunk
ctx.content_length_diff = ctx.content_length_diff + (modified_length - original_length)
ctx.response_buffer[#ctx.response_buffer] = chunk ctx.response_buffer[#ctx.response_buffer] = chunk
end end
@@ -300,9 +296,7 @@ function NanoHandler.body_filter(conf)
return return
else else
local buffered_data = table.concat(ctx.response_buffer) local buffered_data = table.concat(ctx.response_buffer)
local original_content_length = tonumber(ngx.header["Content-Length"]) or #buffered_data ngx.header["Content-Length"] = nil
local total_diff = ctx.content_length_diff or 0
ngx.header["Content-Length"] = original_content_length + total_diff
ngx.arg[1] = buffered_data ngx.arg[1] = buffered_data
ctx.response_buffer = nil ctx.response_buffer = nil
return return
@@ -340,9 +334,7 @@ function NanoHandler.body_filter(conf)
if ctx.response_buffer and #ctx.response_buffer > 0 then if ctx.response_buffer and #ctx.response_buffer > 0 then
local buffered_data = table.concat(ctx.response_buffer) local buffered_data = table.concat(ctx.response_buffer)
local original_content_length = tonumber(ngx.header["Content-Length"]) or #buffered_data ngx.header["Content-Length"] = #buffered_data
local total_diff = ctx.content_length_diff or 0
ngx.header["Content-Length"] = original_content_length + total_diff
ngx.arg[1] = buffered_data ngx.arg[1] = buffered_data
else else
kong.log.debug("No buffered chunks to flush (empty response)") kong.log.debug("No buffered chunks to flush (empty response)")