mirror of
https://gitee.com/iresty/apisix.git
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7baa0abd44
Fix #1164
635 lines
19 KiB
Lua
635 lines
19 KiB
Lua
--
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-- Licensed to the Apache Software Foundation (ASF) under one or more
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-- contributor license agreements. See the NOTICE file distributed with
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-- this work for additional information regarding copyright ownership.
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-- The ASF licenses this file to You under the Apache License, Version 2.0
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-- (the "License"); you may not use this file except in compliance with
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-- the License. You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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local require = require
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local core = require("apisix.core")
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local plugin = require("apisix.plugin")
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local service_fetch = require("apisix.http.service").get
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local admin_init = require("apisix.admin.init")
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local get_var = require("resty.ngxvar").fetch
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local router = require("apisix.router")
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local ipmatcher = require("resty.ipmatcher")
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local ngx = ngx
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local get_method = ngx.req.get_method
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local ngx_exit = ngx.exit
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local math = math
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local error = error
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local ipairs = ipairs
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local pairs = pairs
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local tostring = tostring
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local load_balancer
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local dns_resolver
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local parsed_domain
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local function parse_args(args)
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dns_resolver = args and args["dns_resolver"]
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core.log.info("dns resolver", core.json.delay_encode(dns_resolver, true))
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end
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local _M = {version = 0.3}
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function _M.http_init(args)
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require("resty.core")
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if require("ffi").os == "Linux" then
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require("ngx.re").opt("jit_stack_size", 200 * 1024)
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end
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require("jit.opt").start("minstitch=2", "maxtrace=4000",
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"maxrecord=8000", "sizemcode=64",
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"maxmcode=4000", "maxirconst=1000")
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--
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local seed, err = core.utils.get_seed_from_urandom()
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if not seed then
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core.log.warn('failed to get seed from urandom: ', err)
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seed = ngx.now() * 1000 + ngx.worker.pid()
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end
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math.randomseed(seed)
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parse_args(args)
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core.id.init()
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end
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function _M.http_init_worker()
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local we = require("resty.worker.events")
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local ok, err = we.configure({shm = "worker-events", interval = 0.1})
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if not ok then
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error("failed to init worker event: " .. err)
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end
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require("apisix.balancer").init_worker()
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load_balancer = require("apisix.balancer").run
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require("apisix.admin.init").init_worker()
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router.http_init_worker()
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require("apisix.http.service").init_worker()
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plugin.init_worker()
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require("apisix.consumer").init_worker()
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if core.config == require("apisix.core.config_yaml") then
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core.config.init_worker()
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end
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require("apisix.debug").init_worker()
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local local_conf = core.config.local_conf()
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local dns_resolver_valid = local_conf and local_conf.apisix and
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local_conf.apisix.dns_resolver_valid
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parsed_domain = core.lrucache.new({
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ttl = dns_resolver_valid, count = 512, invalid_stale = true,
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})
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end
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local function run_plugin(phase, plugins, api_ctx)
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api_ctx = api_ctx or ngx.ctx.api_ctx
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if not api_ctx then
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return
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end
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plugins = plugins or api_ctx.plugins
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if not plugins then
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return api_ctx
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end
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if phase == "balancer" then
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local balancer_name = api_ctx.balancer_name
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local balancer_plugin = api_ctx.balancer_plugin
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if balancer_name and balancer_plugin then
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local phase_fun = balancer_plugin[phase]
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phase_fun(balancer_plugin, api_ctx)
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return api_ctx
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end
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for i = 1, #plugins, 2 do
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local phase_fun = plugins[i][phase]
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if phase_fun and
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(not balancer_name or balancer_name == plugins[i].name) then
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phase_fun(plugins[i + 1], api_ctx)
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if api_ctx.balancer_name == plugins[i].name then
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api_ctx.balancer_plugin = plugins[i]
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return api_ctx
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end
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end
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end
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return api_ctx
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end
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if phase ~= "log" then
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for i = 1, #plugins, 2 do
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local phase_fun = plugins[i][phase]
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if phase_fun then
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local code, body = phase_fun(plugins[i + 1], api_ctx)
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if code or body then
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core.response.exit(code, body)
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end
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end
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end
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return api_ctx
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end
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for i = 1, #plugins, 2 do
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local phase_fun = plugins[i][phase]
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if phase_fun then
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phase_fun(plugins[i + 1], api_ctx)
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end
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end
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return api_ctx
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end
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function _M.http_ssl_phase()
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local ngx_ctx = ngx.ctx
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local api_ctx = ngx_ctx.api_ctx
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if api_ctx == nil then
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api_ctx = core.tablepool.fetch("api_ctx", 0, 32)
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ngx_ctx.api_ctx = api_ctx
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end
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local ok, err = router.router_ssl.match_and_set(api_ctx)
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if not ok then
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if err then
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core.log.warn("failed to fetch ssl config: ", err)
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end
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end
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end
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local function parse_domain_in_up(up, ver)
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local new_nodes = core.table.new(0, 8)
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for addr, weight in pairs(up.value.nodes) do
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local host, port = core.utils.parse_addr(addr)
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if not ipmatcher.parse_ipv4(host) and
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not ipmatcher.parse_ipv6(host) then
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local ip_info, err = core.utils.dns_parse(dns_resolver, host)
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if not ip_info then
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return nil, err
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end
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core.log.info("parse addr: ", core.json.delay_encode(ip_info))
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core.log.info("resolver: ", core.json.delay_encode(dns_resolver))
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core.log.info("host: ", host)
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if ip_info.address then
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new_nodes[ip_info.address .. ":" .. port] = weight
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core.log.info("dns resolver domain: ", host, " to ",
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ip_info.address)
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else
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return nil, "failed to parse domain in route"
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end
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else
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new_nodes[addr] = weight
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end
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end
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up.dns_value = core.table.clone(up.value)
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up.dns_value.nodes = new_nodes
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core.log.info("parse upstream which contain domain: ",
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core.json.delay_encode(up))
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return up
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end
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local function parse_domain_in_route(route, ver)
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local new_nodes = core.table.new(0, 8)
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for addr, weight in pairs(route.value.upstream.nodes) do
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local host, port = core.utils.parse_addr(addr)
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if not ipmatcher.parse_ipv4(host) and
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not ipmatcher.parse_ipv6(host) then
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local ip_info, err = core.utils.dns_parse(dns_resolver, host)
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if not ip_info then
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return nil, err
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end
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core.log.info("parse addr: ", core.json.delay_encode(ip_info))
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core.log.info("resolver: ", core.json.delay_encode(dns_resolver))
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core.log.info("host: ", host)
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if ip_info and ip_info.address then
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new_nodes[ip_info.address .. ":" .. port] = weight
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core.log.info("dns resolver domain: ", host, " to ",
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ip_info.address)
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else
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return nil, "failed to parse domain in route"
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end
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else
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new_nodes[addr] = weight
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end
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end
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route.dns_value = core.table.deepcopy(route.value)
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route.dns_value.upstream.nodes = new_nodes
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core.log.info("parse route which contain domain: ",
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core.json.delay_encode(route))
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return route
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end
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function _M.http_access_phase()
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local ngx_ctx = ngx.ctx
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local api_ctx = ngx_ctx.api_ctx
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if not api_ctx then
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api_ctx = core.tablepool.fetch("api_ctx", 0, 32)
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ngx_ctx.api_ctx = api_ctx
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end
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core.ctx.set_vars_meta(api_ctx)
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-- load and run global rule
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if router.global_rules and router.global_rules.values
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and #router.global_rules.values > 0 then
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local plugins = core.tablepool.fetch("plugins", 32, 0)
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for _, global_rule in ipairs(router.global_rules.values) do
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api_ctx.conf_type = "global_rule"
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api_ctx.conf_version = global_rule.modifiedIndex
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api_ctx.conf_id = global_rule.value.id
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core.table.clear(plugins)
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api_ctx.plugins = plugin.filter(global_rule, plugins)
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run_plugin("rewrite", plugins, api_ctx)
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run_plugin("access", plugins, api_ctx)
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end
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core.tablepool.release("plugins", plugins)
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api_ctx.plugins = nil
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api_ctx.conf_type = nil
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api_ctx.conf_version = nil
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api_ctx.conf_id = nil
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end
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router.router_http.match(api_ctx)
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core.log.info("matched route: ",
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core.json.delay_encode(api_ctx.matched_route, true))
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local route = api_ctx.matched_route
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if not route then
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return core.response.exit(404,
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{error_msg = "failed to match any routes"})
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end
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if route.value.service_protocol == "grpc" then
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return ngx.exec("@grpc_pass")
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end
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if route.value.service_id then
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local service = service_fetch(route.value.service_id)
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if not service then
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core.log.error("failed to fetch service configuration by ",
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"id: ", route.value.service_id)
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return core.response.exit(404)
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end
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local changed
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route, changed = plugin.merge_service_route(service, route)
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api_ctx.matched_route = route
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if changed then
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api_ctx.conf_type = "route&service"
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api_ctx.conf_version = route.modifiedIndex .. "&"
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.. service.modifiedIndex
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api_ctx.conf_id = route.value.id .. "&"
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.. service.value.id
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else
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api_ctx.conf_type = "service"
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api_ctx.conf_version = service.modifiedIndex
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api_ctx.conf_id = service.value.id
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end
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else
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api_ctx.conf_type = "route"
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api_ctx.conf_version = route.modifiedIndex
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api_ctx.conf_id = route.value.id
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end
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local enable_websocket
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local up_id = route.value.upstream_id
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if up_id then
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local upstreams_etcd = core.config.fetch_created_obj("/upstreams")
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if upstreams_etcd then
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local upstream = upstreams_etcd:get(tostring(up_id))
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if upstream.has_domain then
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local _, err = parsed_domain(upstream, api_ctx.conf_version,
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parse_domain_in_up, upstream)
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if err then
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core.log.error("failed to parse domain in upstream: ", err)
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return core.response.exit(500)
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end
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end
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if upstream.value.enable_websocket then
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enable_websocket = true
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end
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end
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else
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if route.has_domain then
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route = parsed_domain(route, api_ctx.conf_version,
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parse_domain_in_route, route)
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end
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if route.value.upstream and route.value.upstream.enable_websocket then
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enable_websocket = true
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end
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end
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if enable_websocket then
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api_ctx.var.upstream_upgrade = api_ctx.var.http_upgrade
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api_ctx.var.upstream_connection = api_ctx.var.http_connection
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end
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local plugins = core.tablepool.fetch("plugins", 32, 0)
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api_ctx.plugins = plugin.filter(route, plugins)
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run_plugin("rewrite", plugins, api_ctx)
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if api_ctx.consumer then
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local changed
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route, changed = plugin.merge_consumer_route(route, api_ctx.consumer)
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if changed then
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core.table.clear(api_ctx.plugins)
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api_ctx.plugins = plugin.filter(route, api_ctx.plugins)
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end
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end
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run_plugin("access", plugins, api_ctx)
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end
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function _M.grpc_access_phase()
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local ngx_ctx = ngx.ctx
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local api_ctx = ngx_ctx.api_ctx
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if not api_ctx then
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api_ctx = core.tablepool.fetch("api_ctx", 0, 32)
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ngx_ctx.api_ctx = api_ctx
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end
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core.ctx.set_vars_meta(api_ctx)
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router.router_http.match(api_ctx)
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core.log.info("route: ",
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core.json.delay_encode(api_ctx.matched_route, true))
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local route = api_ctx.matched_route
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if not route then
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return core.response.exit(404)
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end
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if route.value.service_id then
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-- core.log.info("matched route: ", core.json.delay_encode(route.value))
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local service = service_fetch(route.value.service_id)
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if not service then
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core.log.error("failed to fetch service configuration by ",
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"id: ", route.value.service_id)
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return core.response.exit(404)
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end
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local changed
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route, changed = plugin.merge_service_route(service, route)
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api_ctx.matched_route = route
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if changed then
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api_ctx.conf_type = "route&service"
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api_ctx.conf_version = route.modifiedIndex .. "&"
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.. service.modifiedIndex
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api_ctx.conf_id = route.value.id .. "&"
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.. service.value.id
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else
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api_ctx.conf_type = "service"
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api_ctx.conf_version = service.modifiedIndex
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api_ctx.conf_id = service.value.id
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end
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else
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api_ctx.conf_type = "route"
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api_ctx.conf_version = route.modifiedIndex
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api_ctx.conf_id = route.value.id
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end
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local plugins = core.tablepool.fetch("plugins", 32, 0)
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api_ctx.plugins = plugin.filter(route, plugins)
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run_plugin("rewrite", plugins, api_ctx)
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run_plugin("access", plugins, api_ctx)
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end
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function _M.http_header_filter_phase()
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run_plugin("header_filter")
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end
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function _M.http_body_filter_phase()
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run_plugin("body_filter")
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end
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function _M.http_log_phase()
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local api_ctx = ngx.ctx.api_ctx
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if not api_ctx then
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return
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end
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if router.global_rules and router.global_rules.values
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and #router.global_rules.values > 0
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then
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local plugins = core.tablepool.fetch("plugins", 32, 0)
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for _, global_rule in ipairs(router.global_rules.values) do
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core.table.clear(plugins)
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plugins = plugin.filter(global_rule, plugins)
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run_plugin("log", plugins, api_ctx)
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end
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core.tablepool.release("plugins", plugins)
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end
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run_plugin("log", nil, api_ctx)
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if api_ctx.uri_parse_param then
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core.tablepool.release("uri_parse_param", api_ctx.uri_parse_param)
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end
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core.ctx.release_vars(api_ctx)
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if api_ctx.plugins then
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core.tablepool.release("plugins", api_ctx.plugins)
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end
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core.tablepool.release("api_ctx", api_ctx)
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end
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function _M.http_balancer_phase()
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local api_ctx = ngx.ctx.api_ctx
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if not api_ctx then
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core.log.error("invalid api_ctx")
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return core.response.exit(500)
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end
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-- first time
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if not api_ctx.balancer_name then
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run_plugin("balancer", nil, api_ctx)
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if api_ctx.balancer_name then
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return
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end
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end
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if api_ctx.balancer_name and api_ctx.balancer_name ~= "default" then
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return run_plugin("balancer", nil, api_ctx)
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end
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api_ctx.balancer_name = "default"
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load_balancer(api_ctx.matched_route, api_ctx)
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end
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local function cors_admin()
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local local_conf = core.config.local_conf()
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if local_conf.apisix and not local_conf.apisix.enable_admin_cors then
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return
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end
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local method = get_method()
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if method == "OPTIONS" then
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core.response.set_header("Access-Control-Allow-Origin", "*",
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"Access-Control-Allow-Methods",
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"POST, GET, PUT, OPTIONS, DELETE, PATCH",
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"Access-Control-Max-Age", "3600",
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"Access-Control-Allow-Headers", "*",
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"Access-Control-Allow-Credentials", "true",
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"Content-Length", "0",
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"Content-Type", "text/plain")
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ngx_exit(200)
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end
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core.response.set_header("Access-Control-Allow-Origin", "*",
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"Access-Control-Allow-Credentials", "true",
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"Access-Control-Expose-Headers", "*",
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"Access-Control-Max-Age", "3600")
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end
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do
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local router
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function _M.http_admin()
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|
if not router then
|
|
router = admin_init.get()
|
|
end
|
|
|
|
-- add cors rsp header
|
|
cors_admin()
|
|
|
|
-- core.log.info("uri: ", get_var("uri"), " method: ", get_method())
|
|
local ok = router:dispatch(get_var("uri"), {method = get_method()})
|
|
if not ok then
|
|
ngx_exit(404)
|
|
end
|
|
end
|
|
|
|
end -- do
|
|
|
|
|
|
function _M.stream_init()
|
|
core.log.info("enter stream_init")
|
|
end
|
|
|
|
|
|
function _M.stream_init_worker()
|
|
core.log.info("enter stream_init_worker")
|
|
router.stream_init_worker()
|
|
plugin.init_worker()
|
|
|
|
load_balancer = require("apisix.balancer").run
|
|
|
|
local local_conf = core.config.local_conf()
|
|
local dns_resolver_valid = local_conf and local_conf.apisix and
|
|
local_conf.apisix.dns_resolver_valid
|
|
|
|
parsed_domain = core.lrucache.new({
|
|
ttl = dns_resolver_valid, count = 512, invalid_stale = true,
|
|
})
|
|
end
|
|
|
|
|
|
function _M.stream_preread_phase()
|
|
core.log.info("enter stream_preread_phase")
|
|
|
|
local ngx_ctx = ngx.ctx
|
|
local api_ctx = ngx_ctx.api_ctx
|
|
|
|
if not api_ctx then
|
|
api_ctx = core.tablepool.fetch("api_ctx", 0, 32)
|
|
ngx_ctx.api_ctx = api_ctx
|
|
end
|
|
|
|
core.ctx.set_vars_meta(api_ctx)
|
|
|
|
router.router_stream.match(api_ctx)
|
|
|
|
core.log.info("matched route: ",
|
|
core.json.delay_encode(api_ctx.matched_route, true))
|
|
|
|
local matched_route = api_ctx.matched_route
|
|
if not matched_route then
|
|
return ngx_exit(1)
|
|
end
|
|
|
|
local plugins = core.tablepool.fetch("plugins", 32, 0)
|
|
api_ctx.plugins = plugin.stream_filter(matched_route, plugins)
|
|
-- core.log.info("valid plugins: ", core.json.delay_encode(plugins, true))
|
|
|
|
run_plugin("preread", plugins, api_ctx)
|
|
end
|
|
|
|
|
|
function _M.stream_balancer_phase()
|
|
core.log.info("enter stream_balancer_phase")
|
|
local api_ctx = ngx.ctx.api_ctx
|
|
if not api_ctx then
|
|
core.log.error("invalid api_ctx")
|
|
return ngx_exit(1)
|
|
end
|
|
|
|
-- first time
|
|
if not api_ctx.balancer_name then
|
|
run_plugin("balancer", nil, api_ctx)
|
|
if api_ctx.balancer_name then
|
|
return
|
|
end
|
|
end
|
|
|
|
if api_ctx.balancer_name and api_ctx.balancer_name ~= "default" then
|
|
return run_plugin("balancer", nil, api_ctx)
|
|
end
|
|
|
|
api_ctx.balancer_name = "default"
|
|
load_balancer(api_ctx.matched_route, api_ctx)
|
|
end
|
|
|
|
|
|
function _M.stream_log_phase()
|
|
core.log.info("enter stream_log_phase")
|
|
-- core.ctx.release_vars(api_ctx)
|
|
run_plugin("log")
|
|
end
|
|
|
|
|
|
return _M
|