February 2013
Intermediate to advanced
380 pages
7h 45m
Japanese
Content preview from Nodeクックブック
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234
7 章 セキュリティ、暗号化、認証
ログインダイアログボックスが表示されると、ユーザがダイアログボックスをキャンセルするか
ログインを試行するまで、ブラウザはコンテンツの取得を中断します。ユーザがキャンセルボタン
をクリックすると、
authenticate
関数が「認証が必要です。」というメッセージを送信します。
ユーザがログインを試行すると、ブラウザはサーバに対して
HTTP
リクエストを送信しま
す。このリクエストには、サーバから受け取った
WWW-Authenticate
ヘッダに対する回答として
Authorization
ヘッダが挿入されています。サーバ側のスクリプトで
req.headers.authentication
の値を評価して
Authorization
ヘッダの有無を確認し、
Authorization
ヘッダが存在する場合は認
証情報の確認を行います。
Authorization
ヘッダは以下のような文字列です。
Authorization: Basic ZGF2ZTpJTGlrZUJyaWVfMzM=
Basic
の後に続く文字列は、
Base64
でエンコードされた
username
と
password
です。これをデ
コードすると以下のようになります。
dave:ILikeBrie_33
Authorization
ヘッダが存在する場合、
createServer
のコールバック関数では、
Authorization
ヘッダの値から「
Basic
」（
Basic
の後のスペースも）を取り除き、
Base64
からバイナリに変換し ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.