<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><section><h1>仕様書</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <cite xml:lang="en">RFC 7616 - HTTP Digest Access Authentication</cite> (<time>2015-11-10 07:05:08 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://tools.ietf.org/html/rfc7616#section-3.3">https://tools.ietf.org/html/rfc7616#section-3.3</anchor-external></li></ul></refs></section><section><h1>意味</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">クライアント</anchor>が指定した <code class="HTTP" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">nonce</anchor></code> 
値が<rubyb xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><anchor>腐敗</anchor><rt xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">stale</rt></rubyb>しているため<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">要求</anchor>を拒絶したことを示します <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p></section><section><h1>構文</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="16" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[16]</anchor-end> <code class="ABNF" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">auth-param</anchor></code> 
の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引用文字列</anchor>構文を使っては<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">なりません</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;3</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">true</anchor></code> や <code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">false</anchor></code> を指定できます。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">大文字・小文字不区別</anchor>です <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">サーバー</anchor>は、 <code class="HTTP" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">nonce</anchor></code> が<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">非妥当</anchor>な<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">要求</anchor>を受信した時だけ
<code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">true</anchor></code> に設定する<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">べきです</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p></section><section><h1>文脈</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ダイジェスト認証</anchor>の <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">challenge</anchor> で指定できます <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p></section><section><h1>処理</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> 本<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引数</anchor>が<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">真</anchor>なら、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">利用者</anchor>に改めて<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">利用者名</anchor>と<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">合言葉</anchor>を問い合わせずとも、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">要求</anchor>を再試行することができます <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="10" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[10]</anchor-end> <code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">stale</anchor></code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">引数</anchor>が存在しないか、 <code><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">true</anchor></code> <em>以外</em>であれば、
新しい<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">利用者名</anchor>や<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">合言葉</anchor>を求めなければ<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><strong xmlns="http://www.w3.org/1999/xhtml">なりません</strong></anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;1</anchor-internal></src>。</p></section><section><h1>歴史</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <cite xml:lang="en">RFC 2069 - An Extension to HTTP : Digest Access Authentication</cite> (<time>2012-02-26 10:05:21 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://tools.ietf.org/html/rfc2069#page-5">http://tools.ietf.org/html/rfc2069#page-5</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <cite xml:lang="en">RFC 2617 - HTTP Authentication: Basic and Digest Access Authentication</cite> (<time>2012-01-09 21:04:30 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://tools.ietf.org/html/rfc2617#section-3.2.1">http://tools.ietf.org/html/rfc2617#section-3.2.1</anchor-external></li></ul></refs></section></body></html>