Gg / 透過Google Apps Script 建立上傳檔案頁面

Gg / 透過Google Apps Script 建立上傳檔案頁面

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1.程式碼.gs

以Google Apps Script作為後端，執行跟google雲端硬碟與試算表之間的操作

#1~4 function doGet()

這個是讓網頁程式能夠在開啟時就能夠讀取formHtml

#8~10 function include(filename)

自定義函式，可以讓formHtml讀取 Google Apps Script的其他資料，例如：style.css、script.js

#13~120 function uploadFile(form)

接收前端傳過來的資料，在這裡判斷是否為有權限使用者、檔案類型、檔案大小等

如果有任何錯誤訊息，立即中止程式並傳回錯誤訊息給前端

其實也可以寫在前端網頁，但是這樣就很吃瀏覽器的資源

#124~162 function getInt(e)

透過前端網頁載入所有資料並建立DOM之後所觸發的function init()

將目前的google試算表資料回傳到前端的 function onStart()

作為開啟網頁時的初始資料

#166~171 function getScriptURL()

前端重新整理的按鈕觸發時，傳回網頁程式的網址

備註：當網頁程式被嵌入在其他網頁時，這個功能沒有作用，即使是回傳特定網址也是如此

#175~283 function moreFiles(obj)

跟function uploadFile(form)的差別在於function moreFiles(obj)是用來處理多個檔案

兩者接收的資料結構不一樣

function uploadFile(form)是直接接收前端單一檔案的表單資料

多個檔案的時候，在前端先分割檔案，再分別傳到 function moreFiles(obj)

應該也是可以直接傳到後端，只是就是在後端進行檔案分割

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function doGet() {
  var output = HtmlService.createTemplateFromFile("formHtml").evaluate().setTitle("第一組研發資料上傳");
  output.setXFrameOptionsMode(HtmlService.XFrameOptionsMode.ALLOWALL);//可以將發布成html介面的程式  崁入其他網站
  return output;
}
//
//
function include(filename) {
    return HtmlService.createHtmlOutputFromFile(filename).getContent();
}
//
//一個檔案
function uploadFile(form) {
  //Logger.log(form.uploadFile.length);  
  //
  var userId = ["trico"];
  var antiMsg = "<span class='notie'>※※【請注意】※※<br></span>";
  var antiNum = 0;
  for(var u =0 ; u < userId.length ; u++){
      if(form.id !== userId[u]){ 
        //Logger.log(userId[u]);
        //Logger.log(userId.length);
        antiNum += 1;
        antiMsg = "<span class='notie'>無權限使用者!!</span></br>"; 
      }
  }
  if(antiNum > userId.length-1){
        return antiMsg;
      }
  //
  try {
      var sheetName = "第一組研發資料上傳列表";
      var foldername = "第一組研發資料";
      var folder, folders;

      var msg = "<span class='notie'>※※【請注意】※※<br></span>";

      folders = DriveApp.getFoldersByName(foldername);

      if (folders.hasNext()) {
          folder = folders.next();
      } else {
          folder = DriveApp.createFolder(foldername);
      }

      var fileExt = form.uploadFile.name;
      //取出副檔名
      fileExt = fileExt.substring(fileExt.lastIndexOf('.') + 1);
      
      var validExts = new Array("jpg", "doc", "docx", "pdf", "ppt", "pptx", "xls", "xlsx", "txt", "odt", "ods", "rar", "zip");
      
      if (form.id !== "" && form.uploadFile.length !== 0 && form.uploadFile.length < 10485760 && validExts.indexOf(fileExt) > -1) {
          var blob = form.uploadFile;
          var file = folder.createFile(blob);
          //var phone = "'" + form.phone.toString();
          file.setSharing(DriveApp.Access.ANYONE_WITH_LINK, DriveApp.Permission.VIEW);
          file.setDescription("上傳者： " + form.id);
      } else {
          if (form.id === "")
              msg += "<span class='notie'>姓名遺漏</span></br>";
         // if (form.phone === "")
         //     msg += "<span class='notie'>電話遺漏</span></br>";
         // if (form.email === "")
         //     msg += "<span class='notie'>信箱遺漏</span></br>";
          if (form.uploadFile.length === 0)
              msg += "<span class='notie'>檔案遺漏</span></br>";
          if (form.uploadFile.length >= 10485760)
              msg += "<span class='notie'>檔案超過10MB</span></br>";
          if (validExts.indexOf(fileExt) < 0 && form.uploadFile.length !== 0)
              msg += "<span class='notie'>上傳的檔案格式為" + fileExt + ",只接受<strong  style=\"color:red\">" + validExts.toString() + "</strong></span></br>";
          return msg;
      }
      var fileUrl = file.getUrl();
      var fileName = file.getName();
      var FileIterator = DriveApp.getFilesByName(sheetName);
      var sheetApp = "";
      while (FileIterator.hasNext()) {
          var sheetFile = FileIterator.next();
          if (sheetFile.getName() == sheetName && sheetFile.getMimeType()=="application/vnd.google-apps.spreadsheet") {
              sheetApp = SpreadsheetApp.open(sheetFile);
          }
      }
      if (sheetApp == "") {
          sheetApp = SpreadsheetApp.create(sheetName);
          sheetApp.getSheets()[0].getRange(1, 1, 1, 4).setValues([["上傳時間", "姓名", "檔案名稱", "檔案網址"]]);
      }
      var sheet = sheetApp.getSheets()[0];
      var lastRow = sheet.getLastRow();

      //寫入資料表
      var targetRange = sheet.getRange(lastRow + 1, 1, 1, 4).setValues([[new Date().toLocaleString(), form.id, fileName, fileUrl]]);

      //寫出資料到網頁      
      var Sheet = sheetApp.getSheets()[0]
      var LastRow = Sheet.getLastRow();
      var LastColumn = Sheet.getLastColumn();
      var data = [];
      data.push("檔案上傳成功！");
      var listAll = Sheet.getSheetValues(1, 1, LastRow, LastColumn);
      var listA = [];
      for (var j = 0; j < listAll[0].length; j++) {
          listA.push(listAll[0][j]);
      }
      data.push(listA);
      for (var i = 1; i < listAll.length; i++) {
          var listOne = [];
          for (var k = 0; k < listAll[0].length; k++) {
            if(k==3){ //檔案網址 欄位
              listAll[i][k]= "<a href='" + listAll[i][k] +"' target='_blank'>" + listAll[i][k].trim() + "</a> ";
              listOne.push(listAll[i][k]);
            }else{
              listOne.push(listAll[i][k]);
            }
          }
          data.push(listOne);      }
      return JSON.parse(JSON.stringify(data));
  } catch (error) {
      return "檔案上傳失敗！ 原因：" + error.toString();
  }  
}
//
//網頁初始 抓取資料
//
function getInt(e) {
    var sheetName = "第一組研發資料上傳列表";
    var FileIterator = DriveApp.getFilesByName(sheetName);
    var sheetApp = "";
    while (FileIterator.hasNext()) {
        var sheetFile = FileIterator.next();
        if (sheetFile.getName() == sheetName) {
            sheetApp = SpreadsheetApp.open(sheetFile);
        }
    }    
    if (sheetApp == "") {
          sheetApp = SpreadsheetApp.create(sheetName);
          sheetApp.getSheets()[0].getRange(1, 1, 1, 4).setValues([["上傳時間", "姓名", "檔案名稱", "檔案網址"]]);
    }    
    var Sheet = sheetApp.getSheets()[0]
    var LastRow = Sheet.getLastRow();
    var LastColumn = Sheet.getLastColumn();
    var data = [];
    data.push("int");
    var listAll = Sheet.getSheetValues(1, 1, LastRow, LastColumn);
    var listA = [];
    for (var j = 0; j < listAll[0].length; j++) {
        listA.push(listAll[0][j]);
    }
    data.push(listA);
    for (var i = 1; i < listAll.length; i++) {
        var listOne = [];
        for (var k = 0; k < listAll[0].length; k++) {
          if(k==3){ //檔案網址
            listAll[i][k]= "<a href='" + listAll[i][k] +"' target='_blank'>" + listAll[i][k].trim() + "</a> ";
            listOne.push(listAll[i][k]);
          }else{
            listOne.push(listAll[i][k]);
          }            
        }
        data.push(listOne);
    }
    return JSON.parse(JSON.stringify(data));  
}
//
//重新整理網頁
//嵌入網頁 不能使用
function getScriptURL() {
  return ScriptApp.getService().getUrl();

  //前往特定網頁
  //return "https://sites.google.com/view/ntnupriori/%E7%AC%AC%E4%B8%80%E7%B5%84/%E6%9C%83%E8%AD%B0%E8%A8%98%E9%8C%84"; //https://sites.google.com/view/ntnupriori/第一組/會議記錄
}
//
// 超過一個檔案
//
function moreFiles(obj) {
  //Logger.log("超過一個檔案");  
  var userObj = obj.userName;
  //Logger.log(userObj);
  //Logger.log(obj.fileName);
  //Logger.log(obj.data.length);

  var userId = ["trico"];
  var antiMsg = "<span class='notie'>※※【請注意】※※<br></span>";
  var antiNum = 0;
  for(var u =0 ; u < userId.length ; u++){
      if(userObj !== userId[u]){ 
        //Logger.log(userId[u]);
        //Logger.log(userId.length);
        antiNum += 1;
        antiMsg = "<span class='notie'>無權限使用者!!</span></br>"; 
      }
  }
  if(antiNum > userId.length-1){
        return antiMsg;
  }
  //
  try {
      var sheetName = "第一組研發資料上傳列表";
      var foldername = "第一組研發資料";
      var folder, folders;

      var msg = "<span class='notie'>※※【請注意】※※<br></span>";

      folders = DriveApp.getFoldersByName(foldername);
      if (folders.hasNext()) {
          folder = folders.next();
      } else {
          folder = DriveApp.createFolder(foldername);
      }

      var fileExt = obj.fileName;
      fileExt = fileExt.substring(fileExt.lastIndexOf('.') + 1);
      
      var validExts = new Array("jpg", "doc", "docx", "pdf", "ppt", "pptx", "xls", "xlsx", "txt", "odt", "ods", "rar", "zip");
      
      if (userObj !== "" &&  obj.data.length < 10485760 && validExts.indexOf(fileExt) > -1) {
          var blob = Utilities.newBlob(Utilities.base64Decode(obj.data), obj.mimeType, obj.fileName);
          var file = folder.createFile(blob);
          //var phone = "'" + form.phone.toString();
          file.setDescription("上傳者： " + userObj.id);
      } else {
          if (userObj === "")
              msg += "<span class='notie'>姓名遺漏</span></br>";
         // if (form.phone === "")
         //     msg += "<span class='notie'>電話遺漏</span></br>";
         // if (form.email === "")
         //     msg += "<span class='notie'>信箱遺漏</span></br>";
          if (obj.data.length === 0)
              msg += "<span class='notie'>檔案遺漏</span></br>";
          if (obj.data.length >= 10485760)
              msg += "<span class='notie'>檔案超過10MB</span></br>";
          if (validExts.indexOf(fileExt) < 0 && obj.data.length !== 0)
              msg += "<span class='notie'>上傳的檔案「"+ obj.fileName +"」格式為" + fileExt + ",只接受<strong  style=\"color:red\">" + validExts.toString() + "</strong></span></br>";
          return msg;
      }
      var fileUrl = file.getUrl();
      var fileName = file.getName();
      var FileIterator = DriveApp.getFilesByName(sheetName);
      var sheetApp = "";
      while (FileIterator.hasNext()) {
          var sheetFile = FileIterator.next();
          if (sheetFile.getName() == sheetName) {
              sheetApp = SpreadsheetApp.open(sheetFile);
          }
      }
      if (sheetApp == "") {
          sheetApp = SpreadsheetApp.create(sheetName);
          sheetApp.getSheets()[0].getRange(1, 1, 1, 4).setValues([["上傳時間", "姓名", "檔案名稱", "檔案網址"]]);
      }
      var sheet = sheetApp.getSheets()[0];
      var lastRow = sheet.getLastRow();
      
      var targetRange = sheet.getRange(lastRow + 1, 1, 1, 4).setValues([[new Date().toLocaleString(), userObj, fileName, fileUrl]]);
      
      var Sheet = sheetApp.getSheets()[0]
      var LastRow = Sheet.getLastRow();
      var LastColumn = Sheet.getLastColumn();
      var data = [];
      data.push("檔案上傳成功！");
      var listAll = Sheet.getSheetValues(1, 1, LastRow, LastColumn);
      var listA = [];
      for (var j = 0; j < listAll[0].length; j++) {
          listA.push(listAll[0][j]);
      }
      data.push(listA);
      for (var i = 1; i < listAll.length; i++) {
          var listOne = [];
          for (var k = 0; k < listAll[0].length; k++) {
            if(k==3){ //檔案網址
              listAll[i][k]= "<a href='" + listAll[i][k] +"' target='_blank'>" + listAll[i][k].trim() + "</a> ";
              listOne.push(listAll[i][k]);
            }else{
              listOne.push(listAll[i][k]);
            }
          }
          data.push(listOne);
      }
      return JSON.parse(JSON.stringify(data));
  } catch (error) {
      return "檔案上傳失敗！ 原因：" + error.toString();
  }
  //return DriveApp.createFile(blob).getId();
}
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