add contact function

@@ -15,6 +15,7 @@ var folderRouter = require('./routes/folders');
 var quickRouter = require('./routes/quick');
 var quickRouter = require('./routes/quick');
 var favoritesRouter = require('./routes/favorites');
 var favoritesRouter = require('./routes/favorites');
 var shareRouter = require('./routes/share');
 var shareRouter = require('./routes/share');
+var contactRouter = require('./routes/contact');
 
 
 
 
 var passport = require('passport');
 var passport = require('passport');
@@ -67,6 +68,7 @@ app.use('/api/share', shareRouter);
 //app.use('/users', usersRouter);
 //app.use('/users', usersRouter);
 app.use('/api/file', fileRouter);
 app.use('/api/file', fileRouter);
 app.use('/api/quick', quickRouter);
 app.use('/api/quick', quickRouter);
+app.use('/api/contact', contactRouter);
 
 
 // catch 404 and forward to error handler
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {
 app.use(function(req, res, next) {
@@ -84,4 +86,4 @@ app.use(function(err, req, res, next) {
     res.render('error');
     res.render('error');
 });
 });
 
 
-module.exports = app;
\ No newline at end of file
+module.exports = app;

+var express = require('express');
+var router = express.Router();
+const XLSX = require('xlsx');
+var multer = require('multer');
+var fs = require('fs');
+var xl = require('excel4node');
+// var pool = require('./../routes/modules/database');
+
+//파일 저장위치와 파일이름 설정
+var storage = multer.diskStorage({
+    destination: function (req, file, cb) {
+        cb(null, 'public/upload');
+    },
+    //파일이름 설정
+    filename: function (req, file, cb) {
+    cb(null, file.originalname);
+  }
+})
+
+//파일 업로드 모듈
+var upload = multer({ storage: storage })
+
+// 연락처 백업, 삭제, 검색
+/*
+contact_upload : 연락처 파일 업로드 모듈
+input : 사용자가 연락처를 저장해놓은 csv 혹은 xlsx 파일
+output : 연락처 저장 성공 여부
+*/
+router.post('/contact_upload', upload.single('file'), function(req, res, next) {
+    // console.log(req);
+    var user_id = req.query.id;
+    var file = req.file;
+    var workbook = XLSX.readFile('public/upload/contact.xlsx');
+    var firstWSheetName = workbook.SheetNames[0];
+    var firstWSheet = workbook.Sheets[firstWSheetName];
+    var name = [];
+    var phone = [];
+    var email = [];
+    var added_date = [];
+    var length = firstWSheet['!ref'][4];
+    var temp ="";
+
+    var sqlquery = "insert into contact(user_id,name,email,phone,added_date) values";
+    for(var i=1;i<length;i++)
+    {
+      for(var j=0;j<4;j++)
+      {
+        if(j==0){
+          temp = "A" + (i+1);
+          name.push(firstWSheet[temp].v);
+          sqlquery += ' ("' + user_id + '","'+name[i-1];
+          }
+        else if(j==1){
+          temp = "B" + (i+1);
+          phone.push(firstWSheet[temp].v);
+          sqlquery += '","' + phone[i-1];
+          }
+        else if(j==2){
+          temp = "C" + (i+1);
+          email.push(firstWSheet[temp].v);
+          sqlquery += '","' + email[i-1];
+          }
+        else if(j==3){
+          temp = "D" + (i+1);
+          added_date.push(firstWSheet[temp].v);
+          sqlquery += '","' + added_date[i-1] + '"),';
+          }
+      }
+    }
+    sqlquery = sqlquery.substring(0,sqlquery.length-1);
+      connection.query(sqlquery, function (err, rows) {
+        if (err) {
+            console.log("upload contact failed");
+            throw err;
+        } else {
+            console.log(rows);
+            var filename = 'public/upload/contact.xlsx';
+            fs.unlink(filename, function (err) {
+                  if (err) throw err;
+                  console.log('file deleted');
+                })
+              res.status(200).send('upload');
+        }
+      });
+});
+
+/*
+contact_download : 연락처 파일 다운로드 모듈
+input : 사용자의 연락처 다운로드 요청
+output : 연락처 다운로드 성공 여부 및 csv, xlsx 파일
+*/
+router.post('/contact_download', function(req, res, next) {
+
+  var filename = 'public/upload/contactdownload.xlsx';
+  fs.exists(filename, function (exists) {
+    console.log(exists);
+    if(exists == true)
+    {
+      fs.unlink(filename, function (err) {
+            if (err) throw err;
+            console.log('file deleted');
+        });
+    }
+  });
+
+  // Create a new instance of a Workbook class
+  var wb = new xl.Workbook();
+
+  // Add Worksheets to the workbook
+  var ws = wb.addWorksheet('Sheet 1');
+
+  ws.cell(1, 1)
+    .string('name');
+  ws.cell(1, 2)
+    .string('phone');
+  ws.cell(1, 3)
+    .string('email');
+  ws.cell(1, 4)
+    .string('added_date');
+
+  var user_id = req.query.id;
+  var sqlquery = "SELECT  * FROM contact WHERE user_id = ?";
+      connection.query(sqlquery, [user_id], function (err, rows) {
+        if (err) {
+            console.log("download contact failed");
+            throw err;
+        } else {
+          if(rows.length != 0)
+          {
+            for(var i=0;i<rows.length;i++)
+            {
+              ws.cell(i+2, 1).string(rows[i].name);
+              ws.cell(i+2, 2).string(rows[i].phone);
+              ws.cell(i+2, 3).string(rows[i].email);
+              ws.cell(i+2, 4).string(rows[i].added_date);
+            }
+          }
+            wb.write('public/upload/contactdownload.xlsx');
+            var file = __dirname + '/public/upload/contactdownload.xlsx';
+            // console.log(file);
+            res.download(file);
+        }
+
+      });
+});
+
+/*
+contact_create : 연락처 생성 모듈
+input : 사용자의 연락처 생성 요청
+output : 연락처 생성 성공 여부
+사용자한테 연락처 정보 받아오기
+*/
+router.get('/contact_create', function(req, res, next) {
+  //insert into contact(name) value ("daso")
+});
+
+/*
+contact_delete : 연락처 삭제 모듈
+input : 사용자의 연락처 삭제 요청
+output : 연락처 삭제 성공 여부
+*/
+router.post('/contact_delete', function(req, res, next) {
+  // console.log("req.query",req.query);
+  var user_id = req.query.id;
+  var sqlquery = "DELETE FROM contact WHERE user_id = ?";
+      connection.query(sqlquery, [user_id], function (err, rows) {
+        if (err) {
+            console.log("delete contact failed");
+            throw err;
+        } else {
+            // console.log(rows);s
+             res.status(200).send("delete");
+        }
+
+      });
+});
+
+/*
+contact_search : 연락처 검색 모듈
+input : 사용자가 이름, 전화번호, 이메일 중 하나를 검색
+output : 검색을 요청한 데이터에 부합하는 연락처를 찾았다면 출력
+*/
+router.post('/contact_search', function(req, res, next) {
+    console.log("req.query",req.query);
+    var user_id = req.query.id;
+    var type = req.query.type;
+    var info = "";
+    if(type == "name")
+    {
+      info = req.query.name;
+      var sqlquery = "SELECT  * FROM contact WHERE user_id = ? and name = ?";
+    }
+    else if(type == "phone")
+    {
+      info = req.query.phone;
+      var sqlquery = "SELECT  * FROM contact WHERE user_id = ? and phone = ?";
+    }
+    else if(type == "email")
+    {
+      info = req.query.email;
+      var sqlquery = "SELECT  * FROM contact WHERE user_id = ? and email = ?";
+    }
+    console.log(sqlquery);
+    connection.query(sqlquery, [user_id,info], function (err, rows) {
+      if (err) {
+          console.log("search contact failed");
+          throw err;
+      } else {
+          console.log(rows);
+           res.status(200).send({contact_list : rows});
+      }
+
+    });
+});
+
+/*
+contact_list : 연락처 출력 모듈
+input : 사용자의 연락처 출력 요청
+output : 저장된 연락처 목록 출력
+*/
+router.post('/contact_list', function(req, res, next) {
+  console.log("req.query",req.query);
+  var user_id = req.query.id;
+  var sqlquery = "SELECT  * FROM contact WHERE user_id = ?";
+      connection.query(sqlquery, [user_id], function (err, rows) {
+        if (err) {
+            console.log("select contact failed");
+            throw err;
+        } else {
+            console.log(rows);
+             res.status(200).send({contact_list : rows});
+        }
+
+      });
+});
+
+
+module.exports = router;