import

index.js

@@ -2,14 +2,23 @@ import nedb       from 'nedb'
 import express    from 'express'
 import expressWs  from 'express-ws'
 import session    from 'express-session'
-//import random     from 'string-random'
+import connect    from 'connect-nedb-session'
+import random     from 'string-random'
 import formidable from 'formidable'
+import md5        from 'md5-node'
+import { resolve } from 'path/posix'
+
+
+process.on('SIGINT', function() {
+  console.log('Got SIGINT.  Press Control-D/Control-C to exit.');
+  process.exit(0);
+});
 
 const app = expressWs(express()).app
-//const NedbStore = connect(session)
+const NedbStore = connect(session)
 
-// 自动载入所有库
+
-// 自动构建 db 列表
+// 数据: 自动构建 db 列表 或自动载入所有库
 const databases = new Map()
 const db = (name) => (databases.get(name) || function(){
   let database = new nedb({filename:`./data/db/${name}.db`,autoload:true,timestampData:true})
@@ -17,75 +26,149 @@ const db = (name) => (databases.get(name) || function(){
   return database
 }())
 
+// 缓存: 自动构建 ws 列表
+const wsstores  = new Map()
+const wsstore = name => (wsstores.get(name) || function() {
+  let list = new Map()
+  wsstores.set(name, list)
+  return list
+}())
+
+// 组件: 要求登录
+const online = function(req, res, next) {
+  req.session.account ? next() : res.status(401).send('未登录')
+}
+
+// 组件: 管理权限
+const admin = function(req, res, next) {
+  req.session.account.gid === 1 ? next() : res.status(403).send('没有权限')
+}
+
+// 组件: 移除输入非法信息
+const remove = function(req, res, next) {
+  delete req.body._id
+  delete req.body.uid
+  delete req.body.createdAt
+  delete req.body.updatedAt
+  delete req.body.views
+  delete req.body.posts
+  delete req.body.likes
+  next()
+}
+
+// 组件: 从缓存载入数据
+
+// 组件: 操作权限
+//const authority = function(req, res, next) {
+//  (req.method === 'GET') ? next() : res.status(200).send
+//}
+
+// 组件: 移除输出敏感信息
+
+
+app.use(express.json())
+app.use(express.urlencoded({ extended: false }))
+app.use(session({
+  secret: 'keyboard cat',
+  name:'sid',
+  resave: false,
+  saveUninitialized: false,
+  cookie: { maxAge: 180 * 24 * 3600000 },
+  store: new NedbStore({filename: './data/db/session.db'}),
+}))
+
+
+// 只允许管理权限访问
+app.use('/session', online, admin)
+app.use('/account', online, admin)
+app.use('/message', online, admin)
+app.use('/attach', online, admin)
+app.use('/like', online, admin)
+
+// 操作对象必须要登录
+//app.use('/:name', )
+
 // 对象列表
+
+
 // 对象实体
 // 对象附件
 // 对象评论
 // 对象收藏
 // 对象点赞
-app.get('/', function(req, res, next) {
-  res.send('index')
-})
-
-app.get('/test', function(req, res, next) {
-  res.send(`
-  <DOCTYPE html>
-  <title>test</title>
-  <p> 2333 <p>
-  <div id="div"></div>
-  <form id="form">
-      <input type="file" name="files" multiple accept=".jpg,">
-      <input id="btn" type="button" value="确认上传">
-  </form>
-  <script>
-  const btn = document.getElementById("btn");
-  const form = document.getElementById("form");
-  btn.onclick = function () {
-      console.log(1);
-      const formData = new FormData(form);
-      // 获取数组第一个文件
-      //files = formDate.get("files");
-      // 返回数组  获取所有文件
-      // files = formData.getAll("files");
-      // console.log(files);
-
-      const xhr = new XMLHttpRequest();
-      xhr.open('post', '/demo/FmnKXZ8lxwGjf4GE/file');
-      xhr.send(formData);
-      xhr.onload = function () {
-          alert(xhr.responseText);
-      }
-  }
-  </script>
-  `)
-})
-
 
 // 无论在哪一级别的对象, 都是泛型对象, 因此不必二级restful
 // 列表也是对象
 //app.use('/:name', function(req, res, next) {
   // log
 //})
+
+const count_load = async function(name, query) {
+  await new Promise(resolve => db(name).count(query, function(err, count) {
+    resolve(count)
+  }))
+}
+
+const list_load = async function(name, query) {
+  await new Promise(resolve => db(name).find(query, function(err, docs) {
+    let list = []
+    for (let doc of docs) list.push({_id: doc.id})
+    resolve(list)
+  }))
+}
+
 app.get('/:name', function(req, res, next) {
-  db(req.params.name).find({}, function(err, docs) {
+  if (req.query.tid) req.query.tid = Number(req.query.tid) // 某些查询参数需要转换类型(暂时)
+  if (req.query.top) req.query.top = Number(req.query.top) // 某些查询参数需要转换类型(暂时)
+  if (req.query.uid || req.query.uid !== req.session?.account?.uid) {
+    req.query.public = true // 如果查询条件限定为自己的, 则不用限制范围到公开的
+  }
+  let { pagesize, page, like, ...query } = req.query
+  pagesize = Number(pagesize) || 20
+  let skip = ((Number(page) || 1) - 1) * pagesize
+
+  // 基于登录状态的查询, 查询点赞过的, 查询评论过的
+  if (req.session?.account?.uid) {
+    if (like) query.$or = list_load('like',{name:req.params.name, uid:req.session.account.uid})
+    if (post) query.$or = list_load('post',{name:req.params.name, uid:req.session.account.uid})
+  }
+  db(req.params.name).find(query).skip(skip).limit(pagesize).sort({createdAt: -1}).exec(async function(err, docs) {
+    for (let item of docs) {
+      item.posts = await count_load('post', {name:req.params.name, id:item._id}) // 附加评论数量
+      item.likes = await count_load('like', {name:req.params.name, id:item._id}) // 附加点赞数量
+      if (user) item.user = await user_load(item.uid) // 附加用户信息
+    }
     res.json(docs)
   })
 })
-app.put('/:name', function(req, res, next) {})
+
-app.post('/:name', function(req, res, next) {
+app.post('/:name', online, remove, function(req, res, next) {
-  db(req.params.name).insert({name:'2333'}, function(err, doc) {
+  req.body.uid    = req.session.account.uid // 默认发布者uid
-    res.json(doc)
+  req.body.public = true                    // 默认发表即公开
+  db(req.params.name).insert(req.body, function(err, doc) {
+    doc ? res.json(doc) : res.status(500).send('内部错误')
+  })
+})
+
+//app.put('/:name', online, function(req, res, next) {})
+//app.patch('/:name', online, function(req, res, next) {})
+//app.head('/:name', function(req, res, next) {})
+//app.options('/:name', function(req, res, next) {})
+app.get('/:name/:id', function(req, res, next) {
+  db(req.params.name).findOne({_id: req.params.id}, async function(err, doc) {
+    if (err || !doc) return res.status(404).send('目标资源不存在')
+    if (!doc.public && doc.uid !== req.session?.account?.uid) {
+      return res.status(403).send('没有权限读取')
+    }
+    // 附加用户信息
+    if (req.query.user) doc.user = await user_load(doc.uid)
   })
 })
-app.patch('/:name', function(req, res, next) {})
-app.head('/:name', function(req, res, next) {})
-app.options('/:name', function(req, res, next) {})
-app.get('/:name/:id', function(req, res, next) {})
 app.put('/:name/:id', function(req, res, next) {})
-app.post('/:name/:id', function(req, res, next) {})
+//app.post('/:name/:id', function(req, res, next) {})
 app.patch('/:name/:id', function(req, res, next) {})
-app.options('/:name/:id', function(req, res, next) {})
+//app.options('/:name/:id', function(req, res, next) {})
-app.head('/:name/:id', function(req, res, next) {})
+//app.head('/:name/:id', function(req, res, next) {})
 
 app.get('/:name/:id/post', function(req, res, next) {
   // 获得此对象的所有post记录

package.json

@@ -7,10 +7,13 @@
   "author": "satori <huan0016@gmail.com>",
   "license": "MIT",
   "dependencies": {
+    "connect-nedb-session": "^0.0.3",
     "express": "^4.17.1",
     "express-session": "^1.17.2",
     "express-ws": "^5.0.2",
     "formidable": "^1.2.2",
-    "nedb": "^1.8.0"
+    "md5-node": "^1.0.1",
+    "nedb": "^1.8.0",
+    "string-random": "^0.1.3"
   }
 }

yarn.lock

@@ -15,7 +15,7 @@ array-flatten@1.1.1:
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
   integrity sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=
 
-async@0.2.10:
+async@0.2.10, async@~0.2.8:
   version "0.2.10"
   resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
   integrity sha1-trvgsGdLnXGXCMo43owjfLUmw9E=
@@ -48,6 +48,13 @@ bytes@3.1.0:
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
   integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
 
+connect-nedb-session@^0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/connect-nedb-session/-/connect-nedb-session-0.0.3.tgz#e10f642d3d604f609bb23a450021dd1f0579c5ac"
+  integrity sha1-4Q9kLT1gT2CbsjpFACHdHwV5xaw=
+  dependencies:
+    nedb "0.0.6"
+
 content-disposition@0.5.3:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.3.tgz#e130caf7e7279087c5616c2007d0485698984fbd"
@@ -265,6 +272,11 @@ localforage@^1.3.0:
   dependencies:
     lie "3.1.1"
 
+md5-node@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/md5-node/-/md5-node-1.0.1.tgz#0e22d009d46bdc95b1d3c5e8c8feddc1a5c3aa88"
+  integrity sha1-DiLQCdRr3JWx08XoyP7dwaXDqog=
+
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
@@ -319,6 +331,14 @@ ms@2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
   integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
 
+nedb@0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/nedb/-/nedb-0.0.6.tgz#a2e6c02cb2fcacf91245b02431f44cf1664aa85f"
+  integrity sha1-oubALLL8rPkSRbAkMfRM8WZKqF8=
+  dependencies:
+    async "~0.2.8"
+    underscore "~1.4.4"
+
 nedb@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/nedb/-/nedb-1.8.0.tgz#0e3502cd82c004d5355a43c9e55577bd7bd91d88"
@@ -444,6 +464,11 @@ setprototypeof@1.1.1:
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
   integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
 
+string-random@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/string-random/-/string-random-0.1.3.tgz#083f39835c2430fe0be76b9e72f0736e2e0f7b74"
+  integrity sha512-g+UsIwzKhNi+9/+Q3Q7hP8R4HkQxiIkQlttnxw6GRdk9pnnkGIv53C6H8dvh8wxAVDhkqpnWeauaPXS1b2sBJg==
+
 toidentifier@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"