github_mirrors/attachment
3
0
Fork 1
mirror of https://github.com/openappsec/attachment.git synced 2025-12-31 13:49:09 +03:00
Code Issues Packages Projects Releases Wiki Activity

add debuging message for testing

Browse Source
This commit is contained in:
wiaamm
2025-12-09 18:10:13 +02:00
parent 2b09ebcc41
commit 3672da3c55
1 changed files with 28 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
attachments/kong/plugins/open-appsec-waf-kong-plugin/handler.lua
View File

@@ -13,9 +13,11 @@ function NanoHandler.init_worker()
end
function NanoHandler.access(conf)
kong.log.err("NanoHandler access phase started")
local headers = kong.request.get_headers()
local session_id = nano.generate_session_id()
kong.service.request.set_header("x-session-id", tostring(session_id))
kong.log.err("NanoHandler access phase generate session_id: ", session_id)
local session_data = nano.init_session(session_id)
if not session_data then
@@ -24,6 +26,7 @@ function NanoHandler.access(conf)
return
end
kong.log.err("NanoHandler access phase initialized session_data")
kong.ctx.plugin.session_data = session_data
kong.ctx.plugin.session_id = session_id
@@ -33,6 +36,7 @@ function NanoHandler.access(conf)
kong.ctx.plugin.cleanup_needed = true
return
end
kong.log.err("NanoHandler access phase handled start transaction")
local req_headers = nano.handleHeaders(headers)
if not req_headers then
@@ -40,6 +44,7 @@ function NanoHandler.access(conf)
kong.ctx.plugin.cleanup_needed = true
return
end
kong.log.err("NanoHandler access phase handled request headers")
local has_content_length = tonumber(ngx.var.http_content_length) and tonumber(ngx.var.http_content_length) > 0
local contains_body = has_content_length and 1 or 0
@@ -49,32 +54,41 @@ function NanoHandler.access(conf)
kong.ctx.plugin.cleanup_needed = true
return nano.handle_custom_response(session_data, response)
end
kong.log.err("NanoHandler access phase sent request filter data")
if contains_body == 1 then
kong.log.err("Request body expected, inspecting body")
local body = kong.request.get_raw_body()
if body and #body > 0 then
kong.log.debug("Request body found in memory, size: ", #body)
verdict, response = nano.send_body(session_id, session_data, body, nano.HttpChunkType.HTTP_REQUEST_BODY)
if verdict == nano.AttachmentVerdict.DROP then
kong.ctx.plugin.cleanup_needed = true
return nano.handle_custom_response(session_data, response)
end
else
kong.log.err("Request body not found in memory, checking nginx vars")
kong.log.debug("Request body not in memory, attempting to read from buffer/file")
local body_data = ngx.var.request_body
if body_data and #body_data > 0 then
kong.log.err("Request body found in nginx var, size: ", #body_data)
kong.log.debug("Found request body in nginx var, size: ", #body_data)
verdict, response = nano.send_body(session_id, session_data, body_data, nano.HttpChunkType.HTTP_REQUEST_BODY)
if verdict == nano.AttachmentVerdict.DROP then
kong.ctx.plugin.cleanup_needed = true
return nano.handle_custom_response(session_data, response)
end
kong.log.err("Sent request body from nginx var to C module")
else
kong.log.err("Request body not found in nginx var, checking request_body_file")
local body_file = ngx.var.request_body_file
if body_file then
kong.log.err("Request body file found")
kong.log.debug("Reading request body from file: ", body_file)
local file = io.open(body_file, "rb")
if file then
kong.log.err("Opened request body file successfully")
local entire_body = file:read("*all")
file:close()
@@ -115,6 +129,7 @@ function NanoHandler.access(conf)
return nano.handle_custom_response(session_data, response)
end
else
kong.log.err("No request body to inspect, ending inspection directly")
verdict, response = nano.end_inspection(session_id, session_data, nano.HttpChunkType.HTTP_REQUEST_END)
if verdict == nano.AttachmentVerdict.DROP then
kong.ctx.plugin.cleanup_needed = true
@@ -124,6 +139,7 @@ function NanoHandler.access(conf)
end
function NanoHandler.header_filter(conf)
kong.log.err("NanoHandler header_filter phase started")
local ctx = kong.ctx.plugin
if ctx.cleanup_needed then
@@ -141,6 +157,7 @@ function NanoHandler.header_filter(conf)
local headers = kong.response.get_headers()
local header_data = nano.handleHeaders(headers)
kong.log.err("NanoHandler header_filter phase handled response headers")
if not header_data then
kong.log.err("Failed to handle response headers - failing open")
@@ -156,11 +173,13 @@ function NanoHandler.header_filter(conf)
kong.ctx.plugin.cleanup_needed = true
return nano.handle_custom_response(session_data, response)
end
kong.log.err("NanoHandler header_filter phase sent response headers")
ctx.expect_body = not (status_code == 204 or status_code == 304 or (100 <= status_code and status_code < 200) or content_length == 0)
end
function NanoHandler.body_filter(conf)
kong.log.err("NanoHandler body_filter phase started")
local ctx = kong.ctx.plugin
local chunk = ngx.arg[1]
local eof = ngx.arg[2]
@@ -188,21 +207,24 @@ function NanoHandler.body_filter(conf)
return
end
kong.log.err("Inspecting response body chunk")
if chunk and #chunk > 0 then
kong.log.err("Response body chunk size: ", #chunk)
ctx.body_buffer_chunk = ctx.body_buffer_chunk or 0
ctx.body_seen = true
local verdict, response, modifications = nano.send_body(session_id, session_data, chunk, nano.HttpChunkType.HTTP_RESPONSE_BODY)
kong.log.err("after Sent response body chunk to C module")
if modifications then
chunk = nano.handle_body_modifications(chunk, modifications, ctx.body_buffer_chunk)
ngx.arg[1] = chunk
end
kong.log.err("after Handling response body modifications")
ctx.body_buffer_chunk = ctx.body_buffer_chunk + 1
if verdict == nano.AttachmentVerdict.DROP then
kong.log.debug("Dropping response in body_filter")
ctx.cleanup_needed = true
ngx.arg[1] = ""
ngx.arg[2] = true
@@ -211,9 +233,11 @@ function NanoHandler.body_filter(conf)
end
if eof then
kong.log.err("Response body EOF reached")
kong.log.debug("End of response body reached in body_filter")
if ctx.body_seen or ctx.expect_body == false then
kong.log.err("Ending response inspection")
local verdict, response = nano.end_inspection(session_id, session_data, nano.HttpChunkType.HTTP_RESPONSE_END)
if verdict == nano.AttachmentVerdict.DROP then
kong.log.debug("Dropping response in body_filter after end_inspection")
@@ -222,6 +246,7 @@ function NanoHandler.body_filter(conf)
ngx.arg[2] = true
return nano.handle_custom_response(session_data, response)
end
kong.log.err("Response inspection ended successfully")
end
ctx.cleanup_needed = true
@@ -229,6 +254,7 @@ function NanoHandler.body_filter(conf)
end
function NanoHandler.log(conf)
kong.log.err("NanoHandler log phase started")
local ctx = kong.ctx.plugin
if ctx.cleanup_needed then
nano.fini_session(ctx.session_data)