# # 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 hup 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, 10 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); }); run_tests; __DATA__ === TEST 1: sanity --- config location /t { content_by_lua_block { local plugin = require("apisix.plugins.limit-conn") local ok, err = plugin.check_schema({conn = 1, burst = 0, default_conn_delay = 0.1, rejected_code = 503, key = 'remote_addr'}) if not ok then ngx.say(err) end ngx.say("done") } } --- request GET /t --- response_body done --- no_error_log [error] === TEST 2: wrong value of key --- config location /t { content_by_lua_block { local plugin = require("apisix.plugins.limit-conn") local ok, err = plugin.check_schema({conn = 1, default_conn_delay = 0.1, rejected_code = 503, key = 'remote_addr'}) if not ok then ngx.say(err) end ngx.say("done") } } --- request GET /t --- response_body property "burst" is required done --- no_error_log [error] === TEST 3: add plugin --- 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": 100, "burst": 50, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]], [[{ "node": { "value": { "plugins": { "limit-conn": { "conn": 100, "burst": 50, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }, "key": "/apisix/routes/1" }, "action": "set" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 4: not exceeding the burst --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 200 200 200 200 --- no_error_log [error] === TEST 5: update plugin --- 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": 2, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]], [[{ "node": { "value": { "plugins": { "limit-conn": { "conn": 2, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }, "key": "/apisix/routes/1" }, "action": "set" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 6: exceeding the burst --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 503 503 503 503 503 503 503 --- no_error_log [error] === TEST 7: update plugin --- 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": 5, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 8: exceeding the burst --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 503 503 503 503 --- no_error_log [error] === TEST 9: invalid route: missing 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": { "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.print(body) } } --- request GET /t --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" is required"} --- no_error_log [error] === TEST 10: invalid route: wrong conn --- 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" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.print(body) } } --- request GET /t --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be greater than 0"} --- no_error_log [error] === TEST 11: invalid service: missing key --- config location /t { content_by_lua_block { local t = require("lib.test_admin").test local code, body = t('/apisix/admin/services/1', ngx.HTTP_PUT, [[{ "plugins": { "limit-conn": { "burst": 1, "default_conn_delay": 0.1, "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.print(body) } } --- request GET /t --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" is required"} --- no_error_log [error] === TEST 12: invalid service: wrong count --- config location /t { content_by_lua_block { local t = require("lib.test_admin").test local code, body = t('/apisix/admin/services/1', ngx.HTTP_PUT, [[{ "plugins": { "limit-conn": { "conn": -1, "burst": 1, "default_conn_delay": 0.1, "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.print(body) } } --- request GET /t --- error_code: 400 --- response_body {"error_msg":"failed to check the configuration of plugin limit-conn err: property \"conn\" validation failed: expected -1 to be greater than 0"} --- no_error_log [error] === TEST 13: disable plugin --- 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": { }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 14: exceeding the burst --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 200 200 200 200 --- no_error_log [error] === TEST 15: set route(key: server_addr) --- 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": 100, "burst": 50, "default_conn_delay": 0.1, "rejected_code": 503, "key": "server_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 16: key: http_x_real_ip --- 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": 5, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "http_x_real_ip" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 17: exceeding the burst (X-Real-IP) --- config location /access_root_dir { content_by_lua_block { local port = ngx.var.server_port local httpc = require "resty.http" local hc = httpc:new() local res, err = hc:request_uri('http://127.0.0.1:' .. port .. '/limit_conn', { keepalive = false, headers = {["X-Real-IP"] = "10.10.10.1"} }) if res then ngx.exit(res.status) end } } location /test_concurrency { content_by_lua_block { local reqs = {} for i = 1, 10 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 } } --- more_headers X-Real-IP: 10.0.0.1 --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 503 503 503 503 --- error_log limit key: 10.10.10.1route === TEST 18: key: http_x_forwarded_for --- 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": 5, "burst": 1, "default_conn_delay": 0.1, "rejected_code": 503, "key": "http_x_forwarded_for" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 19: exceeding the burst(X-Forwarded-For) --- config location /access_root_dir { content_by_lua_block { local port = ngx.var.server_port local httpc = require "resty.http" local hc = httpc:new() local res, err = hc:request_uri('http://127.0.0.1:' .. port .. '/limit_conn', { keepalive = false, headers = {["X-Forwarded-For"] = "10.10.10.2"} }) if res then ngx.exit(res.status) end } } location /test_concurrency { content_by_lua_block { local reqs = {} for i = 1, 10 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 } } --- more_headers X-Real-IP: 10.0.0.1 --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 503 503 503 503 --- error_log limit key: 10.10.10.2route === TEST 20: default rejected_code --- 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": 100, "burst": 50, "default_conn_delay": 0.1, "key": "remote_addr" } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }]], [[{ "node": { "value": { "plugins": { "limit-conn": { "rejected_code": 503 } }, "upstream": { "nodes": { "127.0.0.1:1980": 1 }, "type": "roundrobin" }, "uri": "/limit_conn" }, "key": "/apisix/routes/1" }, "action": "set" }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 21: set global rule with conn = 2 --- 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": 2, "burst": 1, "default_conn_delay": 0.1, "key": "remote_addr" } } }]] ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 22: exceeding the burst of global rule --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 503 503 503 503 503 503 503 --- no_error_log [error] === TEST 23: delete global rule --- 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_DELETE ) if code >= 300 then ngx.status = code end ngx.say(body) } } --- request GET /t --- response_body passed --- no_error_log [error] === TEST 24: not exceeding the burst --- request GET /test_concurrency --- timeout: 10s --- response_body 200 200 200 200 200 200 200 200 200 200 --- no_error_log [error]