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new 5aa842fe3 fix: original key being modified causing cache inconsistency
(#12299)
5aa842fe3 is described below
commit 5aa842fe3bfc6d0752a366123acbe76148ec07d6
Author: Ashish Tiwari <ashishjaitiwari15112...@gmail.com>
AuthorDate: Tue Jun 10 09:44:21 2025 +0530
fix: original key being modified causing cache inconsistency (#12299)
---
apisix/core/ctx.lua | 11 +++---
t/core/ctx3.t | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 106 insertions(+), 5 deletions(-)
diff --git a/apisix/core/ctx.lua b/apisix/core/ctx.lua
index 36b8788bd..561c1931a 100644
--- a/apisix/core/ctx.lua
+++ b/apisix/core/ctx.lua
@@ -224,6 +224,7 @@ do
__index = function(t, key)
local cached = t._cache[key]
if cached ~= nil then
+ log.info("serving ctx value from cache for key: ", key)
return cached
end
@@ -283,14 +284,14 @@ do
end
elseif core_str.has_prefix(key, "http_") then
- key = key:lower()
- key = re_gsub(key, "-", "_", "jo")
- val = get_var(key, t._request)
+ local arg_key = key:lower()
+ arg_key = re_gsub(arg_key, "-", "_", "jo")
+ val = get_var(arg_key, t._request)
elseif core_str.has_prefix(key, "graphql_") then
-- trim the "graphql_" prefix
- key = sub_str(key, 9)
- val = get_parsed_graphql()[key]
+ local arg_key = sub_str(key, 9)
+ val = get_parsed_graphql()[arg_key]
else
local getter = apisix_var_names[key]
diff --git a/t/core/ctx3.t b/t/core/ctx3.t
new file mode 100644
index 000000000..3686d2649
--- /dev/null
+++ b/t/core/ctx3.t
@@ -0,0 +1,100 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+use t::APISIX 'no_plan';
+
+repeat_each(1);
+no_long_string();
+no_root_location();
+
+add_block_preprocessor(sub {
+ my ($block) = @_;
+
+ if (!$block->request) {
+ $block->set_value("request", "GET /t");
+ }
+
+ if (!$block->response_body) {
+ $block->set_value("response_body", "passed\n");
+ }
+
+ if (!$block->no_error_log && !$block->error_log) {
+ $block->set_value("no_error_log", "[error]\n[alert]");
+ }
+});
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: parse graphql only once and use subsequent from cache
+--- config
+ location /t {
+ content_by_lua_block {
+ local t = require("lib.test_admin").test
+ local code, body = t('/apisix/admin/routes/1',
+ ngx.HTTP_PUT,
+ [=[{
+ "methods": ["POST"],
+ "upstream": {
+ "nodes": {
+ "127.0.0.1:1980": 1
+ },
+ "type": "roundrobin"
+ },
+ "plugins": {
+ "serverless-pre-function": {
+ "phase": "header_filter",
+ "functions" : ["return function(conf, ctx)
+ ngx.log(ngx.WARN, 'find
ctx._graphql: ', ctx.var.graphql_name == \"repo\");
+ ngx.log(ngx.WARN, 'find
ctx._graphql: ', ctx.var.graphql_name == \"repo\");
+ ngx.log(ngx.WARN, 'find
ctx._graphql: ', ctx.var.graphql_name == \"repo\");
+ end"]
+ }
+ },
+ "uri": "/hello",
+ "vars": [["graphql_name", "==", "repo"]]
+ }]=]
+ )
+
+ if code >= 300 then
+ ngx.status = code
+ end
+ ngx.say(body)
+ }
+ }
+--- response_body
+passed
+
+
+
+=== TEST 2: hit
+--- request
+POST /hello
+query repo {
+ owner {
+ name
+ }
+}
+--- response_body
+hello world
+--- error_log
+--- grep_error_log eval
+qr/serving ctx value from cache for key: graphql_name/
+--- grep_error_log_out
+serving ctx value from cache for key: graphql_name
+serving ctx value from cache for key: graphql_name
+serving ctx value from cache for key: graphql_name
