From 85d45de710dda0e9b20b2834cc6e46090fb8f2ce Mon Sep 17 00:00:00 2001
From: chronolaw <chrono_cpp@me.com>
Date: Thu, 12 Oct 2023 17:49:57 +0800
Subject: [PATCH 1/3] feat(src): add more indexed vars

---
 README.md                         | 3 +++
 src/ngx_http_lua_kong_var_index.c | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/README.md b/README.md
index 2bdacac3..a6cf30f8 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,9 @@ index *commonly used variables* as follows:
 - `$http_x_forwarded_port`
 - `$http_x_forwarded_prefix`
 - `$http_x_forwarded_proto`
+- `$http_x_kong_request_debug`
+- `$http_x_kong_request_debug_token`
+- `$http_x_kong_request_debug_log`
 - `$https`
 - `$http2`
 - `$realip_remote_addr`
diff --git a/src/ngx_http_lua_kong_var_index.c b/src/ngx_http_lua_kong_var_index.c
index eb9a8c29..f9d3d9f4 100644
--- a/src/ngx_http_lua_kong_var_index.c
+++ b/src/ngx_http_lua_kong_var_index.c
@@ -44,6 +44,11 @@ static ngx_str_t default_vars[] = {
     ngx_string("http_x_forwarded_prefix"),
     ngx_string("http_x_forwarded_proto"),
 
+    /* for request-debugging */
+    ngx_string("http_x_kong_request_debug"),
+    ngx_string("http_x_kong_request_debug_token"),
+    ngx_string("http_x_kong_request_debug_log"),
+
     /* --with-http_ssl_module */
 #if (NGX_HTTP_SSL)
     ngx_string("https"),

From 6c5515ddf78f2ce69188d20af184f44c494ee92d Mon Sep 17 00:00:00 2001
From: chronolaw <chrono_cpp@me.com>
Date: Mon, 26 Feb 2024 11:05:57 +0800
Subject: [PATCH 2/3] add test cases

---
 t/006-default_indexed-var.t | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/t/006-default_indexed-var.t b/t/006-default_indexed-var.t
index 2ca6bdd1..9c07fb99 100644
--- a/t/006-default_indexed-var.t
+++ b/t/006-default_indexed-var.t
@@ -411,3 +411,36 @@ get variable value '0' by index
 [error]
 [crit]
 [alert]
+
+=== TEST 13: variable $http_x_kong_request_debug, $http_x_kong_request_debug_token, $http_x_kong_request_debug_log
+--- http_config
+    lua_package_path "../lua-resty-core/lib/?.lua;lualib/?.lua;;";
+    lua_kong_load_var_index default;
+    init_by_lua_block {
+        require("resty.kong.var").patch_metatable()
+    }
+
+--- config
+    location = /test {
+        content_by_lua_block {
+            ngx.say(ngx.var.http_x_kong_request_debug, " ",
+                    ngx.var.http_x_kong_request_debug_token, " ",
+                    ngx.var.http_x_kong_request_debug_log)
+        }
+    }
+--- request
+GET /test
+--- more_headers
+x-kong-request-debug: true
+x-kong-request-debug_token: 12345
+x_kong_request_debug_log: false
+--- response_body
+true 12345 false
+--- error_log
+get variable value 'true' by index
+get variable value '12345' by index
+get variable value 'false' by index
+--- no_error_log
+[error]
+[crit]
+[alert]

From dbba991fc6d089d84bbd2d17c925aba51e2decbe Mon Sep 17 00:00:00 2001
From: chronolaw <chrono_cpp@me.com>
Date: Mon, 26 Feb 2024 11:15:32 +0800
Subject: [PATCH 3/3] fix tests

---
 t/006-default_indexed-var.t | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/006-default_indexed-var.t b/t/006-default_indexed-var.t
index 9c07fb99..cdecae40 100644
--- a/t/006-default_indexed-var.t
+++ b/t/006-default_indexed-var.t
@@ -432,8 +432,8 @@ get variable value '0' by index
 GET /test
 --- more_headers
 x-kong-request-debug: true
-x-kong-request-debug_token: 12345
-x_kong_request_debug_log: false
+x-kong-request-debug-token: 12345
+x-kong-request-debug-log: false
 --- response_body
 true 12345 false
 --- error_log