fix: encryption/decryption for non-auth plugins in consumer

Signed-off-by: ashing <axingfly@gmail.com>

apisix/plugin.lua

@@ -934,7 +934,9 @@ local function get_plugin_schema_for_gde(name, schema_type)
 
     local schema
     if schema_type == core.schema.TYPE_CONSUMER then
-        schema = plugin_schema.consumer_schema
+        -- when we use a non-auth plugin in the consumer (where the consumer_schema field does not exist),
+        -- we need to fallback to it's schema for encryption and decryption.
+        schema = plugin_schema.consumer_schema or plugin_schema.schema
     elseif schema_type == core.schema.TYPE_METADATA then
         schema = plugin_schema.metadata_schema
     else

t/node/consumer-plugin3.t

@@ -0,0 +1,142 @@
+use t::APISIX 'no_plan';
+
+repeat_each(1);
+no_long_string();
+no_shuffle();
+no_root_location();
+
+run_tests;
+
+__DATA__
+
+=== TEST 1: add consumer with csrf plugin (data encryption enabled)
+--- yaml_config
+apisix:
+    data_encryption:
+        enable_encrypt_fields: true
+        keyring:
+            - edd1c9f0985e76a2
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local json = require("toolkit.json")
+            local code, body = t('/apisix/admin/consumers',
+                ngx.HTTP_PUT,
+                [[{
+                    "username": "jack",
+                    "plugins": {
+                        "key-auth": {
+                            "key": "key-a"
+                        },
+                        "csrf": {
+                            "key": "userkey",
+                            "expires": 1000000000
+                        }
+                    }
+                }]]
+            )
+            if code >= 300 then
+                ngx.status = code
+                ngx.say(body)
+                return
+            end
+
+            ngx.sleep(0.1)
+
+            -- verify csrf key is decrypted in admin API
+            local code, message, res = t('/apisix/admin/consumers/jack',
+                ngx.HTTP_GET
+            )
+            if code >= 300 then
+                ngx.status = code
+                ngx.say(message)
+                return
+            end
+            local consumer = json.decode(res)
+            ngx.say(consumer.value.plugins["csrf"].key)
+
+            -- verify csrf key is encrypted in etcd
+            local etcd = require("apisix.core.etcd")
+            local res = assert(etcd.get('/consumers/jack'))
+            ngx.say(res.body.node.value.plugins["csrf"].key)
+        }
+    }
+--- request
+GET /t
+--- response_body
+userkey
+mt39FazQccyMqt4ctoRV7w==
+--- no_error_log
+[error]
+
+
+
+=== TEST 2: add route
+--- 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,
+                [[{
+                    "uri": "/hello",
+                    "plugins": {
+                        "key-auth": {}
+                    },
+                    "upstream": {
+                        "nodes": {
+                            "127.0.0.1:1980": 1
+                        },
+                        "type": "roundrobin"
+                    }
+                }]]
+            )
+
+            if code >= 300 then
+                ngx.status = code
+            end
+            ngx.say(body)
+        }
+    }
+--- request
+GET /t
+--- response_body
+passed
+
+
+
+=== TEST 3: invalid request - no csrf token
+--- yaml_config
+apisix:
+    data_encryption:
+        enable_encrypt_fields: true
+        keyring:
+            - edd1c9f0985e76a2
+--- request
+POST /hello
+--- more_headers
+apikey: key-a
+--- error_code: 401
+--- response_body
+{"error_msg":"no csrf token in headers"}
+
+
+
+=== TEST 4: valid request - with csrf token
+--- yaml_config
+apisix:
+    data_encryption:
+        enable_encrypt_fields: true
+        keyring:
+            - edd1c9f0985e76a2
+--- request
+POST /hello
+--- more_headers
+apikey: key-a
+apisix-csrf-token: eyJyYW5kb20iOjAuNDI5ODYzMTk3MTYxMzksInNpZ24iOiI0ODRlMDY4NTkxMWQ5NmJhMDc5YzQ1ZGI0OTE2NmZkYjQ0ODhjODVkNWQ0NmE1Y2FhM2UwMmFhZDliNjE5OTQ2IiwiZXhwaXJlcyI6MjY0MzExOTYyNH0=
+Cookie: apisix-csrf-token=eyJyYW5kb20iOjAuNDI5ODYzMTk3MTYxMzksInNpZ24iOiI0ODRlMDY4NTkxMWQ5NmJhMDc5YzQ1ZGI0OTE2NmZkYjQ0ODhjODVkNWQ0NmE1Y2FhM2UwMmFhZDliNjE5OTQ2IiwiZXhwaXJlcyI6MjY0MzExOTYyNH0=
+--- response_body
+hello world
+--- no_error_log
+[error]