Box: Create Folder

main();
function main(){
  const newFolderName = configs.get("FolderName");
  checkNewFolderName(newFolderName);

  const parentFolderId = configs.get("ParentFolderId");
  
  // get OAuth2 Setting
  const oauth2 = configs.get("conf_OAuth2");

  const newFolderId = createFolder(oauth2, parentFolderId, newFolderName);

  const IdData = configs.get("FolderIdItem");
  const UrlData = configs.get("WebViewUrlItem");
  if (IdData !== null && IdData !== "") {
      engine.setDataByNumber(IdData, newFolderId);
  }
  if (UrlData !== null && UrlData !== "") {
      engine.setDataByNumber(UrlData, `https://app.box.com/folder/${newFolderId}`);
  }
}

/**
  * 新しいフォルダのフォルダ名をチェックする。（サポートされていない文字が使われていないか）
  */
function checkNewFolderName(newFolderName){

  //空ではないか
  if(newFolderName === "" ||newFolderName === null) {
    throw "Folder Name is blank";
  }

  //255文字を超えていないか
  if(newFolderName.length > 255){
    throw"Folder Name shoule be less than 256 characters";
  }

  //「/」や「\」が含まれていないか
  const reg = new RegExp('[/\\\\]');
  if(newFolderName.search(reg) !== -1) {
    throw "Invalid Folder Name";
  }

  //先頭と末尾に半角スペースが使われていないか
  if(newFolderName.slice(0,1) === " " || newFolderName.slice(-1) === " ") {
    throw "Invalid Folder Name";
  }

  //「.」や「..」ではないか
  if(newFolderName === "." || newFolderName === ".."){
    throw "Invalid Folder Name";
  }
}

//create folder on box
function createFolder(oauth2, parentFolderId, name) {
  let jsonReq = {};
  //mime type of google drive folder
  if (parentFolderId !== "" && parentFolderId !== null){
    jsonReq["parent"] = {"id": parentFolderId };
  }else{
    jsonReq["parent"]= {"id": 0 };
  }
  jsonReq["name"] = name;
  
  const url = 'https://api.box.com/2.0/folders';
  const response = httpClient.begin()
    .authSetting(oauth2)
    .queryParam("fields", "id")
    .body(JSON.stringify(jsonReq), "application/json; charset=UTF-8")
    .post(url);
  const status = response.getStatusCode();
  const responseTxt = response.getResponseAsString();

  let jsonRes;
  try {
    jsonRes = JSON.parse(responseTxt);
  } catch(e) {
    engine.log("failed to parse as json");
    engine.log(responseTxt);
    throw `Failed to create. status: ${status}`;
  }

  // フォルダ作成成功
  if (status === 201) {
    return jsonRes.id;
  }
  try {
    if(status === 409 && jsonRes.context_info.conflicts[0].type === "folder"){
      // 既存のフォルダと Conflict した場合は、既存 フォルダの ID を返す
      return jsonRes.context_info.conflicts[0].id;
    }
  } catch (e) {
    // 何もしない（上記のケース以外はすべてエラーにする）
  }
  engine.log(responseTxt);
  throw `Failed to create. status: ${status}`;
}