在kibana V6.5.1上开发认证插件的踩坑记录
2024-05-18 20:28:11
之前在6.0.0版本上做过一次，那时是用template-kibana-plugin也就是sao来生成开发插件的模板的。需要自己去下载npm install -g sao然后再跑起来。还是想用这个方法的可以浏览这些文章：
- kibana-plugin-development-tutorial——kibana5版本的插件开发教程
- template-kibana-plugin文档——sao使用文档
到了kibana6.3版本之后，你就可以用kibana自带的插件模板生成器（Kibana Plugin Generator）去生成模板。其实整个elastic stack基本上也是从6.3版本之后开始大跨步的走，版本发布之快，变动之大，让二次开发变得更加困难。
做认证插件的思路整理一下：
- 在服务器端（kibana用的是hapi，在node下，类似的有express，python有flask, django等）对所有的链接进行拦截。确认请求中是否包含cookie，如果没有，跳到登录页面
- hapi里面有一个memory cache，在服务器启动时候自动创建。当用户通过登录页面登录成功后，返回一个cookie给浏览器，里面包含经过加密当用户信息，并且把该cookie的session保存到cache当中
- 用户继续访问kibana，每次请求当中都会带有该cookie。服务器每次都会检验该cookie的值是否合法。如果不合法，跳转到登录页面
代码看起来大概是这样的：
const Cookie = require('hapi-auth-cookie');server.register([Cookie], (err) => {if (err) {server.log(['status', 'error', 'kibana-auth-plugin'], 'Failed to register Cookie plugin');throw err;}const cache = server.cache({segment: 'sessions',expiresIn: eval(Config.expiration)});server.app.cache = cache;server.auth.strategy('session', 'cookie', 'required', {password: Config.secret,cookie: 'kibana-cookie',redirectTo: '/login',appendNext: true,isSecure: false,validateFunc: (request, session, callback) => {cache.get(session.sid, (err, cached) => {if (err) {server.log(['status', 'error', 'kibana-auth-plugin'], 'failed to access session cache');return callback(err, false);}if (!cached) {server.log(['status', 'info', 'kibana-auth-plugin'], 'failed to find session ' + session.sid + ' from cache');return callback(null, false);}server.log(['status', 'info', 'kibana-auth-plugin'], 'load session ' + session.sid + ' from cache');if(!validateCacheInfo(cache)){return callback(null, false);}return callback(null, true, null);});}});});
在V6.0.0当中，cache在创建之后，cache是被初始化过的，可以直接使用get和set方法。
const cache = server.cache({segment: 'sessions',expiresIn: eval(Config.expiration)});
但是当我把这个代码移植到V6.5.0之后，该cache变成了一个未初始化的对象。当代码尝试将session保存在cache的时候抛出如下异常：
{ Error: Disconnectedat module.exports.internals.Client.internals.Client.set (/Users/caishichao/Code/kibana/node_modules/hapi/node_modules/catbox/lib/client.js:113:30)at module.exports.internals.Policy.internals.Policy.set (/Users/caishichao/Code/kibana/node_modules/hapi/node_modules/catbox/lib/policy.js:274:17)at Plugin.init [as externalInit] (/Users/caishichao/Code/kibana-extra/system_portal/index.js:39:13)at asyncRegister (/Users/caishichao/Code/kibana/src/server/plugins/lib/plugin.js:84:20)at Object.register (/Users/caishichao/Code/kibana/src/server/plugins/lib/plugin.js:89:7)at Object.target [as register] (/Users/caishichao/Code/kibana/node_modules/hapi/node_modules/joi/lib/object.js:77:34)at each (/Users/caishichao/Code/kibana/node_modules/hapi/lib/plugin.js:317:14)at iterate (/Users/caishichao/Code/kibana/node_modules/items/lib/index.js:36:13)at Object.exports.serial (/Users/caishichao/Code/kibana/node_modules/items/lib/index.js:39:9)at module.exports.internals.Server.internals.Plugin.register (/Users/caishichao/Code/kibana/node_modules/hapi/lib/plugin.js:320:11)at Promise (/Users/caishichao/Code/kibana/node_modules/hapi/lib/promises.js:24:16)at new Promise (<anonymous>)at Object.exports.wrap (/Users/caishichao/Code/kibana/node_modules/hapi/lib/promises.js:13:12)at module.exports.internals.Server.internals.Plugin.register (/Users/caishichao/Code/kibana/node_modules/hapi/lib/plugin.js:164:25)at Plugin.init (/Users/caishichao/Code/kibana/src/server/plugins/lib/plugin.js:95:28)at Plugin.init (/Users/caishichao/Code/kibana/node_modules/lodash/index.js:7407:25)at callPluginHook (/Users/caishichao/Code/kibana/src/server/plugins/lib/call_plugin_hook.js:49:9)at <anonymous>data: undefined,isBoom: true,isServer: true,output: { statusCode: 500,payload: { statusCode: 500,error: 'Internal Server Error',message: 'An internal server error occurred' },headers: {} },reformat: [Function],typeof: [Function] }
肯定是因为版本的变动，导致server.cache()创建出来的cache对象没有初始化。
比较一下kibana的源码变动：
git diff v6.0.0 v6.5.0 --stat
有点疯狂：
x-pack/test_utils/mocks/intl.js | 18 +x-pack/tsconfig.json | 31 +x-pack/tslint.yaml | 11 +x-pack/webpackShims/jquery-flot.js | 16 +x-pack/yarn.lock | 12109 ++++++++++++++++yarn.lock | 18017 +++++++++++++++++++++++13238 files changed, 1009808 insertions(+), 139517 deletions(-)
13238个文件。导出diff到文件当中，没有搜索到可以的删除cache初始化的代码。
比较两个版本的库：
git diff v6.0.0 v6.5.0 package.json
结果(只看dependencies)：
"dependencies": {- "@elastic/datemath": "2.3.0",
+ "@elastic/eui": "4.5.1-logos-tooltip-betabadge","@elastic/filesaver": "1.1.2",
- "@elastic/numeral": "2.2.1",
- "@elastic/test-subj-selector": "0.2.1",
+ "@elastic/numeral": "2.3.2","@elastic/ui-ace": "0.2.3",
- "@elastic/webpack-directory-name-as-main": "2.0.2",
+ "@kbn/babel-preset": "link:packages/kbn-babel-preset",
+ "@kbn/config-schema": "link:packages/kbn-config-schema",
+ "@kbn/datemath": "link:packages/kbn-datemath",
+ "@kbn/i18n": "link:packages/kbn-i18n",
+ "@kbn/pm": "link:packages/kbn-pm",
+ "@kbn/test-subj-selector": "link:packages/kbn-test-subj-selector",
+ "@kbn/ui-framework": "link:packages/kbn-ui-framework","JSONStream": "1.1.1",
- "accept-language-parser": "1.2.0",
- "angular": "1.6.5",
- "angular-bootstrap-colorpicker": "3.0.19",
+ "abortcontroller-polyfill": "^1.1.9",
+ "angular": "1.6.9",
+ "angular-aria": "1.6.6","angular-elastic": "2.5.0",
+ "angular-recursion": "^1.0.5","angular-route": "1.4.7","angular-sanitize": "1.5.7","angular-sortable-view": "0.0.15",
- "angular-translate": "2.13.1","ansicolors": "0.3.2",
- "autoprefixer": "6.5.4",
- "autoprefixer-loader": "2.0.0",
+ "autoprefixer": "^9.1.0","babel-core": "6.21.0",
- "babel-jest": "20.0.3",
- "babel-loader": "6.2.10",
- "babel-plugin-add-module-exports": "0.2.1",
- "babel-plugin-transform-async-generator-functions": "6.24.1",
- "babel-plugin-transform-class-properties": "6.24.1",
- "babel-plugin-transform-define": "1.3.0",
- "babel-plugin-transform-object-rest-spread": "6.23.0",
+ "babel-loader": "7.1.2","babel-polyfill": "6.20.0",
- "babel-preset-env": "1.4.0",
- "babel-preset-react": "6.22.0","babel-register": "6.18.0","bluebird": "2.9.34",
- "body-parser": "1.12.0","boom": "5.2.0",
- "brace": "0.5.1",
- "bunyan": "1.7.1",
- "check-hash": "1.0.1",
+ "brace": "0.11.1",
+ "cache-loader": "1.0.3",
+ "chalk": "^2.4.1","color": "1.0.3","commander": "2.8.1",
- "css-loader": "0.28.1",
+ "compare-versions": "3.1.0",
+ "css-loader": "0.28.7",
+ "custom-event-polyfill": "^0.3.0","d3": "3.5.6","d3-cloud": "1.2.1",
+ "del": "^3.0.0","dragula": "3.7.0",
- "elasticsearch": "13.0.1",
- "elasticsearch-browser": "13.0.1",
+ "elasticsearch": "^15.2.0",
+ "elasticsearch-browser": "^15.2.0","encode-uri-query": "1.0.0","even-better": "7.0.2",
+ "execa": "^0.10.0","expiry-js": "0.1.7",
- "exports-loader": "0.6.2",
- "expose-loader": "0.7.0",
- "extract-text-webpack-plugin": "0.8.2",
- "file-loader": "0.8.4",
- "flot-charts": "0.8.3",
+ "extract-text-webpack-plugin": "3.0.1",
+ "file-loader": "1.1.4","font-awesome": "4.4.0",
- "glob": "5.0.13",
- "glob-all": "3.0.1",
+ "getos": "^3.1.0",
+ "glob": "^7.1.2",
+ "glob-all": "^3.1.0","good-squeeze": "2.1.0",
- "gridster": "0.5.6","h2o2": "5.1.1",
+ "h2o2-latest": "npm:h2o2@8.1.2","handlebars": "4.0.5","hapi": "14.2.0",
- "imports-loader": "0.6.4",
+ "hapi-latest": "npm:hapi@17.5.0",
+ "hjson": "3.1.0",
+ "http-proxy-agent": "^2.1.0",
+ "https-proxy-agent": "^2.2.1","inert": "4.0.2",
- "jade": "1.11.0",
- "jade-loader": "0.7.1","joi": "10.4.1",
- "jquery": "2.2.4",
+ "jquery": "^3.3.1","js-yaml": "3.4.1",
- "json-loader": "0.5.3",
+ "json-stringify-pretty-compact": "1.0.4","json-stringify-safe": "5.0.1","jstimezonedetect": "1.0.5","leaflet": "1.0.3","leaflet-draw": "0.4.10","leaflet-responsive-popup": "0.2.0",
+ "leaflet-vega": "^0.8.6","leaflet.heat": "0.2.0","less": "2.7.1",
- "less-loader": "2.2.3",
- "lodash": "3.10.1",
- "markdown-it": "8.3.2",
- "minimatch": "2.0.10",
+ "less-loader": "4.0.5",
+ "lodash": "npm:@elastic/lodash@3.10.1-kibana1",
+ "lru-cache": "4.1.1",
+ "markdown-it": "^8.4.1",
+ "minimatch": "^3.0.4","mkdirp": "0.5.1",
- "moment": "2.13.0",
- "moment-timezone": "0.5.4",
- "ngreact": "0.3.0",
+ "moment": "^2.20.1",
+ "moment-timezone": "^0.5.14",
+ "mustache": "2.3.0",
+ "ngreact": "0.5.1","no-ui-slider": "1.2.0","node-fetch": "1.3.2",
+ "opn": "^5.4.0","pegjs": "0.9.0",
- "postcss-loader": "1.3.3",
+ "postcss-loader": "2.0.6","prop-types": "15.5.8","proxy-from-env": "1.0.0",
- "pui-react-overlay-trigger": "7.5.4",
- "pui-react-tooltip": "7.5.4",
+ "pug": "^2.0.3","querystring-browser": "1.0.4","raw-loader": "0.5.1",
- "react": "15.4.2",
- "react-ace": "3.7.0",
- "react-addons-test-utils": "15.4.2",
- "react-anything-sortable": "1.6.1",
- "react-color": "2.11.1",
- "react-dom": "15.4.2",
- "react-input-autosize": "1.1.0",
- "react-markdown": "2.4.2",
- "react-redux": "4.4.5",
- "react-router": "2.0.0",
- "react-router-redux": "4.0.4",
- "react-select": "1.0.0-rc.1",
- "react-sortable": "1.1.0",
- "react-toggle": "3.0.1",
- "reactcss": "1.0.7",
- "redux": "3.0.0",
- "redux-thunk": "0.1.0",
- "request": "2.61.0",
+ "react": "^16.3.0",
+ "react-addons-shallow-compare": "15.6.2",
+ "react-anything-sortable": "^1.7.4",
+ "react-color": "^2.13.8",
+ "react-dom": "^16.3.0",
+ "react-grid-layout": "^0.16.2",
+ "react-input-range": "^1.3.0",
+ "react-markdown": "^3.1.4",
+ "react-markdown": "^3.1.4",
+ "react-redux": "^5.0.7",
+ "react-router-dom": "^4.3.1",
+ "react-sizeme": "^2.3.6",
+ "react-toggle": "4.0.2",
+ "reactcss": "1.2.3",
+ "redux": "4.0.0",
+ "redux-actions": "2.2.1",
+ "redux-thunk": "2.3.0",
+ "regression": "2.0.0",
+ "request": "^2.85.0",
+ "reselect": "^3.0.1","resize-observer-polyfill": "1.2.1","rimraf": "2.4.3","rison-node": "1.0.0",
- "rjs-repack-loader": "1.0.6",
- "script-loader": "0.6.1",
- "semver": "5.1.0",
- "style-loader": "0.12.3",
+ "rxjs": "^6.2.1",
+ "script-loader": "0.7.2",
+ "semver": "^5.5.0",
+ "style-loader": "0.19.0",
+ "symbol-observable": "^1.2.0","tar": "2.2.0","tinygradient": "0.3.0",
+ "tinymath": "1.1.0",
+ "topojson-client": "3.0.0","trunc-html": "1.0.2","trunc-text": "1.0.2",
+ "ts-optchain": "^0.1.1",
+ "tslib": "^1.9.3",
+ "type-detect": "^4.0.8",
+ "uglifyjs-webpack-plugin": "^1.2.7","ui-select": "0.19.6",
- "url-loader": "0.5.6",
+ "url-loader": "0.5.9","uuid": "3.0.1",
+ "val-loader": "^1.1.0","validate-npm-package-name": "2.2.2",
+ "vega-lib": "^3.3.1",
+ "vega-lite": "^2.4.0",
+ "vega-schema-url-parser": "1.0.0",
+ "vega-tooltip": "^0.9.14","vision": "4.1.0",
- "webpack": "github:elastic/webpack#fix/query-params-for-aliased-loaders",
+ "webpack": "3.6.0",
+ "webpack-merge": "4.1.0",
+ "whatwg-fetch": "^2.0.3","wreck": "12.4.0",
+ "x-pack": "link:x-pack","yauzl": "2.7.0"},
版本貌似没有变化。。。
那只有在创建的时候手动初始化了：
cache._cache.start(()=>{})
因为不常写node.js，所以来不及深究。本篇只作为一个记录。
但elastic stack现在给我的直观感受是，其代码修改太过自由奔放，换言之就是缺少管制，离一个成熟的商业产品还有不少的路要走。。。
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