| -- |
| -- 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 core = require("apisix.core") |
| local get_routes = require("apisix.router").http_routes |
| local apisix_upstream = require("apisix.upstream") |
| local schema_plugin = require("apisix.admin.plugins").check_schema |
| local utils = require("apisix.admin.utils") |
| local tostring = tostring |
| local ipairs = ipairs |
| local type = type |
| local loadstring = loadstring |
| |
| |
| local _M = { |
| version = 0.3, |
| } |
| |
| |
| local function check_conf(id, conf, need_id) |
| if not conf then |
| return nil, {error_msg = "missing configurations"} |
| end |
| |
| id = id or conf.id |
| if need_id and not id then |
| return nil, {error_msg = "missing service id"} |
| end |
| |
| if not need_id and id then |
| return nil, {error_msg = "wrong service id, do not need it"} |
| end |
| |
| if need_id and conf.id and tostring(conf.id) ~= tostring(id) then |
| return nil, {error_msg = "wrong service id"} |
| end |
| |
| conf.id = id |
| |
| core.log.info("schema: ", core.json.delay_encode(core.schema.service)) |
| core.log.info("conf : ", core.json.delay_encode(conf)) |
| local ok, err = core.schema.check(core.schema.service, conf) |
| if not ok then |
| return nil, {error_msg = "invalid configuration: " .. err} |
| end |
| |
| if need_id and not id then |
| return nil, {error_msg = "wrong type of service id"} |
| end |
| |
| local upstream_conf = conf.upstream |
| if upstream_conf then |
| local ok, err = apisix_upstream.check_upstream_conf(upstream_conf) |
| if not ok then |
| return nil, {error_msg = err} |
| end |
| end |
| |
| local upstream_id = conf.upstream_id |
| if upstream_id then |
| local key = "/upstreams/" .. upstream_id |
| local res, err = core.etcd.get(key) |
| if not res then |
| return nil, {error_msg = "failed to fetch upstream info by " |
| .. "upstream id [" .. upstream_id .. "]: " |
| .. err} |
| end |
| |
| if res.status ~= 200 then |
| return nil, {error_msg = "failed to fetch upstream info by " |
| .. "upstream id [" .. upstream_id .. "], " |
| .. "response code: " .. res.status} |
| end |
| end |
| |
| if conf.plugins then |
| local ok, err = schema_plugin(conf.plugins) |
| if not ok then |
| return nil, {error_msg = err} |
| end |
| end |
| |
| if conf.script then |
| local obj, err = loadstring(conf.script) |
| if not obj then |
| return nil, {error_msg = "failed to load 'script' string: " |
| .. err} |
| end |
| |
| if type(obj()) ~= "table" then |
| return nil, {error_msg = "'script' should be a Lua object"} |
| end |
| end |
| |
| return need_id and id or true |
| end |
| |
| |
| function _M.put(id, conf) |
| local id, err = check_conf(id, conf, true) |
| if not id then |
| return 400, err |
| end |
| |
| local key = "/services/" .. id |
| core.log.info("key: ", key) |
| |
| local ok, err = utils.inject_conf_with_prev_conf("service", key, conf) |
| if not ok then |
| return 500, {error_msg = err} |
| end |
| |
| local res, err = core.etcd.set(key, conf) |
| if not res then |
| core.log.error("failed to put service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| return res.status, res.body |
| end |
| |
| |
| function _M.get(id) |
| local key = "/services" |
| if id then |
| key = key .. "/" .. id |
| end |
| |
| local res, err = core.etcd.get(key, not id) |
| if not res then |
| core.log.error("failed to get service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| return res.status, res.body |
| end |
| |
| |
| function _M.post(id, conf) |
| local id, err = check_conf(id, conf, false) |
| if not id then |
| return 400, err |
| end |
| |
| local key = "/services" |
| utils.inject_timestamp(conf) |
| local res, err = core.etcd.push(key, conf) |
| if not res then |
| core.log.error("failed to post service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| return res.status, res.body |
| end |
| |
| |
| function _M.delete(id) |
| if not id then |
| return 400, {error_msg = "missing service id"} |
| end |
| |
| local routes, routes_ver = get_routes() |
| core.log.info("routes: ", core.json.delay_encode(routes, true)) |
| core.log.info("routes_ver: ", routes_ver) |
| if routes_ver and routes then |
| for _, route in ipairs(routes) do |
| if type(route) == "table" and route.value |
| and route.value.service_id |
| and tostring(route.value.service_id) == id then |
| return 400, {error_msg = "can not delete this service directly," |
| .. " route [" .. route.value.id |
| .. "] is still using it now"} |
| end |
| end |
| end |
| |
| local key = "/services/" .. id |
| local res, err = core.etcd.delete(key) |
| if not res then |
| core.log.error("failed to delete service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| return res.status, res.body |
| end |
| |
| |
| function _M.patch(id, conf, sub_path) |
| if not id then |
| return 400, {error_msg = "missing service id"} |
| end |
| |
| if not conf then |
| return 400, {error_msg = "missing new configuration"} |
| end |
| |
| if not sub_path or sub_path == "" then |
| if type(conf) ~= "table" then |
| return 400, {error_msg = "invalid configuration"} |
| end |
| end |
| |
| local key = "/services" .. "/" .. id |
| local res_old, err = core.etcd.get(key) |
| if not res_old then |
| core.log.error("failed to get service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| if res_old.status ~= 200 then |
| return res_old.status, res_old.body |
| end |
| core.log.info("key: ", key, " old value: ", |
| core.json.delay_encode(res_old, true)) |
| |
| local node_value = res_old.body.node.value |
| local modified_index = res_old.body.node.modifiedIndex |
| |
| if sub_path and sub_path ~= "" then |
| local code, err, node_val = core.table.patch(node_value, sub_path, conf) |
| node_value = node_val |
| if code then |
| return code, err |
| end |
| else |
| node_value = core.table.merge(node_value, conf); |
| end |
| |
| utils.inject_timestamp(node_value, nil, conf) |
| |
| core.log.info("new value ", core.json.delay_encode(node_value, true)) |
| |
| local id, err = check_conf(id, node_value, true) |
| if not id then |
| return 400, err |
| end |
| |
| local res, err = core.etcd.atomic_set(key, node_value, nil, modified_index) |
| if not res then |
| core.log.error("failed to set new service[", key, "]: ", err) |
| return 500, {error_msg = err} |
| end |
| |
| return res.status, res.body |
| end |
| |
| |
| return _M |