| -- |
| -- 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. |
| -- |
| |
| local bp_manager_mod = require("apisix.utils.batch-processor-manager") |
| local log_util = require("apisix.utils.log-util") |
| local core = require("apisix.core") |
| local http = require("resty.http") |
| local url = require("net.url") |
| local math_random = math.random |
| |
| local tostring = tostring |
| |
| local plugin_name = "clickhouse-logger" |
| local batch_processor_manager = bp_manager_mod.new(plugin_name) |
| |
| local schema = { |
| type = "object", |
| properties = { |
| -- deprecated, use "endpoint_addrs" instead |
| endpoint_addr = core.schema.uri_def, |
| endpoint_addrs = {items = core.schema.uri_def, type = "array", minItems = 1}, |
| user = {type = "string", default = ""}, |
| password = {type = "string", default = ""}, |
| database = {type = "string", default = ""}, |
| logtable = {type = "string", default = ""}, |
| timeout = {type = "integer", minimum = 1, default = 3}, |
| name = {type = "string", default = "clickhouse logger"}, |
| ssl_verify = {type = "boolean", default = true}, |
| log_format = {type = "object"}, |
| include_req_body = {type = "boolean", default = false}, |
| include_req_body_expr = { |
| type = "array", |
| minItems = 1, |
| items = { |
| type = "array" |
| } |
| }, |
| include_resp_body = {type = "boolean", default = false}, |
| include_resp_body_expr = { |
| type = "array", |
| minItems = 1, |
| items = { |
| type = "array" |
| } |
| } |
| }, |
| oneOf = { |
| {required = {"endpoint_addr", "user", "password", "database", "logtable"}}, |
| {required = {"endpoint_addrs", "user", "password", "database", "logtable"}} |
| }, |
| encrypt_fields = {"password"}, |
| } |
| |
| |
| local metadata_schema = { |
| type = "object", |
| properties = { |
| log_format = { |
| type = "object" |
| } |
| }, |
| } |
| |
| |
| local _M = { |
| version = 0.1, |
| priority = 398, |
| name = plugin_name, |
| schema = batch_processor_manager:wrap_schema(schema), |
| metadata_schema = metadata_schema, |
| } |
| |
| |
| function _M.check_schema(conf, schema_type) |
| if schema_type == core.schema.TYPE_METADATA then |
| return core.schema.check(metadata_schema, conf) |
| end |
| return core.schema.check(schema, conf) |
| end |
| |
| |
| local function send_http_data(conf, log_message) |
| local err_msg |
| local res = true |
| local selected_endpoint_addr |
| if conf.endpoint_addr then |
| selected_endpoint_addr = conf.endpoint_addr |
| else |
| selected_endpoint_addr = conf.endpoint_addrs[math_random(#conf.endpoint_addrs)] |
| end |
| local url_decoded = url.parse(selected_endpoint_addr) |
| local host = url_decoded.host |
| local port = url_decoded.port |
| |
| core.log.info("sending a batch logs to ", selected_endpoint_addr) |
| |
| if not port then |
| if url_decoded.scheme == "https" then |
| port = 443 |
| else |
| port = 80 |
| end |
| end |
| |
| local httpc = http.new() |
| httpc:set_timeout(conf.timeout * 1000) |
| local ok, err = httpc:connect(host, port) |
| |
| if not ok then |
| return false, "failed to connect to host[" .. host .. "] port[" |
| .. tostring(port) .. "] " .. err |
| end |
| |
| if url_decoded.scheme == "https" then |
| ok, err = httpc:ssl_handshake(true, host, conf.ssl_verify) |
| if not ok then |
| return false, "failed to perform SSL with host[" .. host .. "] " |
| .. "port[" .. tostring(port) .. "] " .. err |
| end |
| end |
| |
| local httpc_res, httpc_err = httpc:request({ |
| method = "POST", |
| path = url_decoded.path, |
| query = url_decoded.query, |
| body = "INSERT INTO " .. conf.logtable .." FORMAT JSONEachRow " .. log_message, |
| headers = { |
| ["Host"] = url_decoded.host, |
| ["Content-Type"] = "application/json", |
| ["X-ClickHouse-User"] = conf.user, |
| ["X-ClickHouse-Key"] = conf.password, |
| ["X-ClickHouse-Database"] = conf.database |
| } |
| }) |
| |
| if not httpc_res then |
| return false, "error while sending data to [" .. host .. "] port[" |
| .. tostring(port) .. "] " .. httpc_err |
| end |
| |
| -- some error occurred in the server |
| if httpc_res.status >= 400 then |
| res = false |
| err_msg = "server returned status code[" .. httpc_res.status .. "] host[" |
| .. host .. "] port[" .. tostring(port) .. "] " |
| .. "body[" .. httpc_res:read_body() .. "]" |
| end |
| |
| return res, err_msg |
| end |
| |
| |
| function _M.body_filter(conf, ctx) |
| log_util.collect_body(conf, ctx) |
| end |
| |
| |
| function _M.log(conf, ctx) |
| local entry = log_util.get_log_entry(plugin_name, conf, ctx) |
| |
| if batch_processor_manager:add_entry(conf, entry) then |
| return |
| end |
| |
| -- Generate a function to be executed by the batch processor |
| local func = function(entries, batch_max_size) |
| local data, err |
| |
| if batch_max_size == 1 then |
| data, err = core.json.encode(entries[1]) -- encode as single {} |
| else |
| local log_table = {} |
| for i = 1, #entries do |
| core.table.insert(log_table, core.json.encode(entries[i])) |
| end |
| data = core.table.concat(log_table, " ") -- assemble multi items as string "{} {}" |
| end |
| |
| if not data then |
| return false, 'error occurred while encoding the data: ' .. err |
| end |
| |
| return send_http_data(conf, data) |
| end |
| |
| batch_processor_manager:add_entry_to_new_processor(conf, entry, ctx, func) |
| end |
| |
| |
| return _M |