[fix] Update lib.lua

access.lua

@@ -16,7 +16,7 @@ local function waf_main()
     elseif cookie_attack_check() then
     elseif url_attack_check() then
     elseif url_args_attack_check() then
-    elseif post_attack_check() then
+    -- elseif post_attack_check() then
     else
         return
     end

init.lua

@@ -160,6 +160,8 @@ function url_args_attack_check()
             for key, val in pairs(REQ_ARGS) do
                 if type(val) == "table" then
                     ARGS_DATA = string.lower(table.concat(val, " "))
+                elseif type(val) == "boolean" then
+                    ARGS_DATA = nil
                 else
                     ARGS_DATA = string.lower(val)
                 end
@@ -198,7 +200,7 @@ end
 
 -- deny post
 function post_attack_check()
-    if config_post_check == "on" then
+    if config_post_check == "on" and ngx.var.request_method == "POST" then
         local POST_RULES = get_rule("post")
 		for _,rule in pairs(POST_RULES) do			
             -- local REQ_POST = ngx.req.get_post_args()
@@ -206,17 +208,19 @@ function post_attack_check()
 			if err == "truncated" then								
 				log_record("Deny_POST_Many",ngx.var.request_uri,"-",rule)
 				if config_waf_enable == "on" then
-					waf_output()
+				    waf_output()
 					return true
 				end
 			end
             for key, val in pairs(REQ_POST) do
                 if type(val) == "table" then
                     POST_DATA = string.lower(table.concat(val, " "))
+                elseif type(val) == "boolean" then
+                    POST_DATA = nil
                 else
                     POST_DATA = string.lower(val)
                 end
-                if POST_DATA and type(POST_DATA) ~= "boolean" and rule ~="" and rulematch(unescape(POST_DATA),string.lower(rule),"jo") then
+                if POST_DATA and rule ~="" and rulematch(unescape(POST_DATA),string.lower(rule),"jo") then
                     log_record("Deny_POST",ngx.var.request_uri,"-",rule)                    
                     if config_waf_enable == "on" then
                         waf_output()

lib.lua

@@ -72,15 +72,25 @@ function log_record(method,url,data,ruletag)
 end
 
 -- test log
-function write(logfile, msg)
-    local fd,err = io.open(logfile,"a+")
-    if fd == nil then
-        ngx.log(ngx.ERR,"writefile msg : "..msg,err)
+function test_log_record(data)
+    local cjson = require("cjson")
+    local io = require "io"
+    local LOG_PATH = config_log_dir
+    local CLIENT_IP = get_client_ip()
+    local LOCAL_TIME = ngx.localtime()
+    local log_json_obj = {
+                 client_ip = CLIENT_IP,
+                 req_data = data,
+              }
+    local LOG_LINE = cjson.encode(log_json_obj)
+    local LOG_NAME = LOG_PATH..'/'.."test.log"
+    local file = io.open(LOG_NAME,"a")
+    if file == nil then
         return
     end
-    fd:write(msg)
-    fd:flush()
-    fd:close()
+    file:write(LOG_LINE.."\n")
+    file:flush()
+    file:close()
 end
 
 -- WAF return