# # 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. # BEGIN { if ($ENV{TEST_NGINX_CHECK_LEAK}) { $SkipReason = "unavailable for the check leak tests"; } else { $ENV{TEST_NGINX_USE_HUP} = 1; undef $ENV{TEST_NGINX_USE_STAP}; } } use t::APISIX 'no_plan'; repeat_each(1); no_long_string(); no_shuffle(); no_root_location(); add_block_preprocessor(sub { my ($block) = @_; my $port = $ENV{TEST_NGINX_SERVER_PORT}; my $config = $block->config // <<_EOC_; location /access_root_dir { content_by_lua_block { local httpc = require "resty.http" local hc = httpc:new() local res, err = hc:request_uri('http://127.0.0.1:$port/limit_conn') if res then ngx.exit(res.status) end } } location /test_concurrency { content_by_lua_block { local reqs = {} for i = 1, 5 do reqs[i] = { "/access_root_dir" } end local resps = { ngx.location.capture_multi(reqs) } for i, resp in ipairs(resps) do ngx.say(resp.status) end } } _EOC_ $block->set_value("config", $config); if (!$block->request) { $block->set_value("request", "GET /t"); } if (!$block->error_log && !$block->no_error_log) { $block->set_value("no_error_log", "[error]\n[alert]"); } }); run_tests; __DATA__ === TEST 1: limit-conn with retry upstream, set upstream --- config location /t { content_by_lua_block { local t = require("lib.test_admin").test local code, body = t('/apisix/admin/upstreams/1', ngx.HTTP_PUT, [[{ "nodes": { "127.0.0.2:1": 1, "127.0.0.1:1980": 1 }, "retries": 2, "type": "roundrobin" }]] ) if code >= 300 then ngx.status = code ngx.say(body) return end local code, body = t('/apisix/admin/routes/1', ngx.HTTP_PUT, [[{ "uri": "/mysleep", "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.3, "rejected_code": 503, "key": "remote_addr" } }, "upstream_id": "1" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- response_body passed === TEST 2: hit route --- log_level: debug --- request GET /mysleep?seconds=0.1 --- error_log request latency is 0.1 --- response_body 0.1 === TEST 3: set both global and route --- config location /t { content_by_lua_block { local t = require("lib.test_admin").test local code, body = t('/apisix/admin/global_rules/1', ngx.HTTP_PUT, [[{ "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.3, "rejected_code": 503, "key": "remote_addr" } } }]] ) if code >= 300 then ngx.status = code ngx.say(body) return end local code, body = t('/apisix/admin/routes/1', ngx.HTTP_PUT, [[{ "uri": "/hello", "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.3, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" } }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- response_body passed === TEST 4: hit route --- log_level: debug --- request GET /hello --- grep_error_log eval qr/request latency is/ --- grep_error_log_out request latency is request latency is === TEST 5: set only_use_default_delay option to true in specific 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": "/hello1", "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.3, "only_use_default_delay": true, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1982": 1 }, "type": "roundrobin" } }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- response_body passed === TEST 6: hit route --- log_level: debug --- request GET /hello1 --- grep_error_log eval qr/request latency is nil/ --- grep_error_log_out request latency is nil === TEST 7: invalid route: wrong rejected_msg type --- 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, [[{ "plugins": { "limit-conn": { "conn": 1, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr", "rejected_msg": true } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.print(body) } } --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"rejected_msg\" validation failed: wrong type: expected string, got boolean"} === TEST 8: invalid route: wrong rejected_msg length --- 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, [[{ "plugins": { "limit-conn": { "conn": 1, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr", "rejected_msg": "" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.print(body) } } --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"rejected_msg\" validation failed: string too short, expected at least 1, got 0"} === TEST 9: update plugin to set key_type to var_combination --- 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, [[{ "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.1, "rejected_code": 503, "key": "$http_a $http_b", "key_type": "var_combination" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- response_body passed === TEST 10: Don't exceed the burst --- config location /t { content_by_lua_block { local json = require "t.toolkit.json" local http = require "resty.http" local uri = "http://127.0.0.1:" .. ngx.var.server_port .. "/limit_conn" local ress = {} for i = 1, 2 do local httpc = http.new() local res, err = httpc:request_uri(uri, {headers = {a = i}}) if not res then ngx.say(err) return end table.insert(ress, res.status) end ngx.say(json.encode(ress)) } } --- timeout: 10s --- response_body [200,200] === TEST 11: request when key is missing --- request GET /test_concurrency --- timeout: 10s --- response_body 200 503 503 503 503 --- error_log The value of the configured key is empty, use client IP instead === TEST 12: update plugin to set invalid key --- 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, [[{ "plugins": { "limit-conn": { "conn": 1, "burst": 0, "default_conn_delay": 0.1, "rejected_code": 503, "key": "abcdefgh", "key_type": "var_combination" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- response_body passed === TEST 13: request when key is invalid --- request GET /test_concurrency --- timeout: 10s --- response_body 200 503 503 503 503 --- error_log The value of the configured key is empty, use client IP instead