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JAVASCRIPT網頁應用程式設計
book

JAVASCRIPT網頁應用程式設計

by Alex MacCaw
January 2013
Intermediate to advanced
332 pages
5h 23m
Chinese
GoTop Information, Inc.
Content preview from JAVASCRIPT網頁應用程式設計
模型(Model)和資料
|
53
跨網域請求的安全性
如果你開放讓所有網域的網站透過 CORS/JSONP 等機制存取你的伺服器,勢必得要審
慎評估安全性的問題。同源政策能有效杜絕惡意駭客非法呼叫伺服器(例如 Twitter)開
放的 API,避免個人基本資料遭竊。但 CORS JSONP 則不然。它就像是一般的 Ajax
請求一樣,會將所有的 session cookies 資料透過請求傳送至伺服器,這些資料就足以成
功的登入 Twitter API。如果這些資料被惡意駭客取得,就等於是擁有帳號的完全控制
權;因此,實作 CORS/JSONP 機制時,務必要優先評估安全性問題。
當你選用了 CORS/JSONP 等機制,開放讓所有網域的網站存取你的 API 時,有兩項重
點千萬要時刻謹記於心:
別洩露任何機密資訊,像是電子郵件信箱。
別讓人進行任何操作(像是 Twitter 的「關注」)。
或者,如果想再進一步降低安全性風險,可以設定允許存取的網域白名單,或是採用
OAuth 認證機制。
把資料寫入 ORM
把資料寫入 ORM 的做法非常簡單。只需要從伺服器取得資料,然後再更新模型資料就
可以了。接下來我們會在
Model
物件裡新增一個
populate()
函式,讓這個函式逐一掃視
傳入的每筆資料、建立實體,最後更新
records
物件:
Model.extend({
populate: function(values){
// 重新設定模型和 records 屬性
this.records ...
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Publisher Resources

ISBN: 9789862766811