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<title>class Rack::Auth::Digest::MD5 - rack-2.2.8 Documentation</title>
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<p class="link"><a href="../AbstractHandler.html">Rack::Auth::AbstractHandler</a>
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<!-- Method Quickref -->
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<h3>Methods</h3>
<ul class="link-list" role="directory">
<li class="calls-super" ><a href="#method-c-new">::new</a>
<li ><a href="#method-i-A1">#A1</a>
<li ><a href="#method-i-A2">#A2</a>
<li ><a href="#method-i-H">#H</a>
<li ><a href="#method-i-KD">#KD</a>
<li ><a href="#method-i-call">#call</a>
<li ><a href="#method-i-challenge">#challenge</a>
<li ><a href="#method-i-digest">#digest</a>
<li ><a href="#method-i-md5">#md5</a>
<li ><a href="#method-i-params">#params</a>
<li ><a href="#method-i-passwords_hashed-3F">#passwords_hashed?</a>
<li ><a href="#method-i-valid-3F">#valid?</a>
<li ><a href="#method-i-valid_digest-3F">#valid_digest?</a>
<li ><a href="#method-i-valid_nonce-3F">#valid_nonce?</a>
<li ><a href="#method-i-valid_opaque-3F">#valid_opaque?</a>
<li ><a href="#method-i-valid_qop-3F">#valid_qop?</a>
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<main role="main" aria-labelledby="class-Rack::Auth::Digest::MD5">
<h1 id="class-Rack::Auth::Digest::MD5" class="class">
class Rack::Auth::Digest::MD5
</h1>
<section class="description">
<p><a href="MD5.html"><code>Rack::Auth::Digest::MD5</code></a> implements the <a href="MD5.html"><code>MD5</code></a> algorithm version of HTTP <a href="../Digest.html"><code>Digest</code></a> Authentication, as per RFC 2617.</p>
<p>Initialize with the [Rack] application that you want protecting, and a block that looks up a plaintext password for a given username.</p>
<p><code>opaque</code> needs to be set to a constant base64/hexadecimal string.</p>
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="constants-list">
<header>
<h3>Constants</h3>
</header>
<dl>
<dt id="QOP">QOP
<dd>
</dl>
</section>
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-opaque" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">opaque</span><span
class="attribute-access-type">[RW]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-passwords_hashed" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">passwords_hashed</span><span
class="attribute-access-type">[W]</span>
</div>
<div class="method-description">
</div>
</div>
</section>
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
</header>
<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(app, realm = nil, opaque = nil, &authenticator)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-calls-super">
Calls superclass method
<a href="../AbstractHandler.html#method-c-new"><code>Rack::Auth::AbstractHandler::new</code></a>
</div>
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 26</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">app</span>, <span class="ruby-identifier">realm</span> = <span class="ruby-keyword">nil</span>, <span class="ruby-identifier">opaque</span> = <span class="ruby-keyword">nil</span>, <span class="ruby-operator">&</span><span class="ruby-identifier">authenticator</span>)
<span class="ruby-ivar">@passwords_hashed</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">opaque</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-keyword">and</span> <span class="ruby-identifier">realm</span>.<span class="ruby-identifier">respond_to?</span> <span class="ruby-value">:values_at</span>
<span class="ruby-identifier">realm</span>, <span class="ruby-identifier">opaque</span>, <span class="ruby-ivar">@passwords_hashed</span> = <span class="ruby-identifier">realm</span>.<span class="ruby-identifier">values_at</span> <span class="ruby-value">:realm</span>, <span class="ruby-value">:opaque</span>, <span class="ruby-value">:passwords_hashed</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">super</span>(<span class="ruby-identifier">app</span>, <span class="ruby-identifier">realm</span>, <span class="ruby-operator">&</span><span class="ruby-identifier">authenticator</span>)
<span class="ruby-ivar">@opaque</span> = <span class="ruby-identifier">opaque</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-call" class="method-detail ">
<div class="method-heading">
<span class="method-name">call</span><span
class="method-args">(env)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="call-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 39</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">auth</span> = <span class="ruby-constant">Request</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">provided?</span>
<span class="ruby-keyword">return</span> <span class="ruby-identifier">unauthorized</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">auth</span>.<span class="ruby-identifier">digest?</span> <span class="ruby-operator">||</span> <span class="ruby-operator">!</span><span class="ruby-identifier">auth</span>.<span class="ruby-identifier">correct_uri?</span> <span class="ruby-operator">||</span> <span class="ruby-operator">!</span><span class="ruby-identifier">valid_qop?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-keyword">return</span> <span class="ruby-identifier">bad_request</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">valid?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">nonce</span>.<span class="ruby-identifier">stale?</span>
<span class="ruby-keyword">return</span> <span class="ruby-identifier">unauthorized</span>(<span class="ruby-identifier">challenge</span>(<span class="ruby-value">stale:</span> <span class="ruby-keyword">true</span>))
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">env</span>[<span class="ruby-string">'REMOTE_USER'</span>] = <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">username</span>
<span class="ruby-keyword">return</span> <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">unauthorized</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-passwords_hashed-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">passwords_hashed?</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="passwords_hashed-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 35</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">passwords_hashed?</span>
<span class="ruby-operator">!</span><span class="ruby-operator">!</span><span class="ruby-ivar">@passwords_hashed</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="private-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Private Instance Methods</h3>
</header>
<div id="method-i-A1" class="method-detail ">
<div class="method-heading">
<span class="method-name">A1</span><span
class="method-args">(auth, password)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="A1-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 114</span>
<span class="ruby-keyword">def</span> <span class="ruby-constant">A1</span>(<span class="ruby-identifier ruby-title">auth</span>, <span class="ruby-identifier">password</span>)
<span class="ruby-node">"#{auth.username}:#{auth.realm}:#{password}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-A2" class="method-detail ">
<div class="method-heading">
<span class="method-name">A2</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="A2-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 118</span>
<span class="ruby-keyword">def</span> <span class="ruby-constant">A2</span>(<span class="ruby-identifier ruby-title">auth</span>)
<span class="ruby-node">"#{auth.method}:#{auth.uri}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-H" class="method-detail method-alias">
<div class="method-heading">
<span class="method-name">H</span><span
class="method-args">(data)</span>
</div>
<div class="method-description">
</div>
<div class="aliases">
Alias for: <a href="MD5.html#method-i-md5">md5</a>
</div>
</div>
<div id="method-i-KD" class="method-detail ">
<div class="method-heading">
<span class="method-name">KD</span><span
class="method-args">(secret, data)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="KD-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 110</span>
<span class="ruby-keyword">def</span> <span class="ruby-constant">KD</span>(<span class="ruby-identifier ruby-title">secret</span>, <span class="ruby-identifier">data</span>)
<span class="ruby-constant">H</span> <span class="ruby-node">"#{secret}:#{data}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-challenge" class="method-detail ">
<div class="method-heading">
<span class="method-name">challenge</span><span
class="method-args">(hash = {})</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="challenge-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 79</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">challenge</span>(<span class="ruby-identifier">hash</span> = {})
<span class="ruby-node">"Digest #{params(hash)}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-digest" class="method-detail ">
<div class="method-heading">
<span class="method-name">digest</span><span
class="method-args">(auth, password)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="digest-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 122</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">digest</span>(<span class="ruby-identifier">auth</span>, <span class="ruby-identifier">password</span>)
<span class="ruby-identifier">password_hash</span> = <span class="ruby-identifier">passwords_hashed?</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">password</span> <span class="ruby-operator">:</span> <span class="ruby-constant">H</span>(<span class="ruby-constant">A1</span>(<span class="ruby-identifier">auth</span>, <span class="ruby-identifier">password</span>))
<span class="ruby-constant">KD</span> <span class="ruby-identifier">password_hash</span>, <span class="ruby-node">"#{auth.nonce}:#{auth.nc}:#{auth.cnonce}:#{QOP}:#{H A2(auth)}"</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-md5" class="method-detail ">
<div class="method-heading">
<span class="method-name">md5</span><span
class="method-args">(data)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="md5-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 104</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">md5</span>(<span class="ruby-identifier">data</span>)
<span class="ruby-operator">::</span><span class="ruby-constant">Digest</span><span class="ruby-operator">::</span><span class="ruby-constant">MD5</span>.<span class="ruby-identifier">hexdigest</span>(<span class="ruby-identifier">data</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
<div class="aliases">
Also aliased as: <a href="MD5.html#method-i-H">H</a>
</div>
</div>
<div id="method-i-params" class="method-detail ">
<div class="method-heading">
<span class="method-name">params</span><span
class="method-args">(hash = {})</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="params-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 68</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">params</span>(<span class="ruby-identifier">hash</span> = {})
<span class="ruby-constant">Params</span>.<span class="ruby-identifier">new</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">params</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">params</span>[<span class="ruby-string">'realm'</span>] = <span class="ruby-identifier">realm</span>
<span class="ruby-identifier">params</span>[<span class="ruby-string">'nonce'</span>] = <span class="ruby-constant">Nonce</span>.<span class="ruby-identifier">new</span>.<span class="ruby-identifier">to_s</span>
<span class="ruby-identifier">params</span>[<span class="ruby-string">'opaque'</span>] = <span class="ruby-constant">H</span>(<span class="ruby-identifier">opaque</span>)
<span class="ruby-identifier">params</span>[<span class="ruby-string">'qop'</span>] = <span class="ruby-constant">QOP</span>
<span class="ruby-identifier">hash</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">k</span>, <span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">params</span>[<span class="ruby-identifier">k</span>] = <span class="ruby-identifier">v</span> }
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-valid-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">valid?</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="valid-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 83</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">valid?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-identifier">valid_opaque?</span>(<span class="ruby-identifier">auth</span>) <span class="ruby-operator">&&</span> <span class="ruby-identifier">valid_nonce?</span>(<span class="ruby-identifier">auth</span>) <span class="ruby-operator">&&</span> <span class="ruby-identifier">valid_digest?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-valid_digest-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">valid_digest?</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="valid_digest-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 99</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">valid_digest?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-identifier">pw</span> = <span class="ruby-ivar">@authenticator</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">auth</span>.<span class="ruby-identifier">username</span>)
<span class="ruby-identifier">pw</span> <span class="ruby-operator">&&</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Utils</span>.<span class="ruby-identifier">secure_compare</span>(<span class="ruby-identifier">digest</span>(<span class="ruby-identifier">auth</span>, <span class="ruby-identifier">pw</span>), <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">response</span>)
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-valid_nonce-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">valid_nonce?</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="valid_nonce-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 95</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">valid_nonce?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-identifier">auth</span>.<span class="ruby-identifier">nonce</span>.<span class="ruby-identifier">valid?</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-valid_opaque-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">valid_opaque?</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="valid_opaque-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 91</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">valid_opaque?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-constant">H</span>(<span class="ruby-identifier">opaque</span>) <span class="ruby-operator">==</span> <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">opaque</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-valid_qop-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">valid_qop?</span><span
class="method-args">(auth)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="valid_qop-3F-source">
<pre><span class="ruby-comment"># File lib/rack/auth/digest/md5.rb, line 87</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">valid_qop?</span>(<span class="ruby-identifier">auth</span>)
<span class="ruby-constant">QOP</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">auth</span>.<span class="ruby-identifier">qop</span>
<span class="ruby-keyword">end</span></pre>
</div>
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