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<title>class Rack::Handler::CGI - rack-2.2.23 Documentation</title>

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  <h3>Parent</h3>

<p class="link">Object
  
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  <h3>Methods</h3>

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    <li ><a href="#method-c-run">::run</a>
    
    <li ><a href="#method-c-send_body">::send_body</a>
    
    <li ><a href="#method-c-send_headers">::send_headers</a>
    
    <li ><a href="#method-c-serve">::serve</a>
    
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<main role="main" aria-labelledby="class-Rack::Handler::CGI">
  <h1 id="class-Rack::Handler::CGI" class="class">
    class Rack::Handler::CGI
  </h1>

<section id="public-class-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Class Methods</h3>
       </header>

<div id="method-c-run" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">run</span><span
            class="method-args">(app, **options)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="run-source">
            <pre><span class="ruby-comment"># File lib/rack/handler/cgi.rb, line 6</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier ruby-title">run</span>(<span class="ruby-identifier">app</span>, <span class="ruby-operator">**</span><span class="ruby-identifier">options</span>)
  <span class="ruby-identifier">$stdin</span>.<span class="ruby-identifier">binmode</span>
  <span class="ruby-identifier">serve</span> <span class="ruby-identifier">app</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
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<div id="method-c-send_body" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">send_body</span><span
            class="method-args">(body)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="send_body-source">
            <pre><span class="ruby-comment"># File lib/rack/handler/cgi.rb, line 51</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier ruby-title">send_body</span>(<span class="ruby-identifier">body</span>)
  <span class="ruby-identifier">body</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">part</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">print</span> <span class="ruby-identifier">part</span>
    <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">flush</span>
  }
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

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<div id="method-c-send_headers" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">send_headers</span><span
            class="method-args">(status, headers)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="send_headers-source">
            <pre><span class="ruby-comment"># File lib/rack/handler/cgi.rb, line 40</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier ruby-title">send_headers</span>(<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>)
  <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">print</span> <span class="ruby-node">&quot;Status: #{status}\r\n&quot;</span>
  <span class="ruby-identifier">headers</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">k</span>, <span class="ruby-identifier">vs</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">vs</span>.<span class="ruby-identifier">split</span>(<span class="ruby-string">&quot;\n&quot;</span>).<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">print</span> <span class="ruby-node">&quot;#{k}: #{v}\r\n&quot;</span>
    }
  }
  <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">print</span> <span class="ruby-string">&quot;\r\n&quot;</span>
  <span class="ruby-identifier">$stdout</span>.<span class="ruby-identifier">flush</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-c-serve" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">serve</span><span
            class="method-args">(app)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="serve-source">
            <pre><span class="ruby-comment"># File lib/rack/handler/cgi.rb, line 11</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier ruby-title">serve</span>(<span class="ruby-identifier">app</span>)
  <span class="ruby-identifier">env</span> = <span class="ruby-constant">ENV</span>.<span class="ruby-identifier">to_hash</span>
  <span class="ruby-identifier">env</span>.<span class="ruby-identifier">delete</span> <span class="ruby-string">&quot;HTTP_CONTENT_LENGTH&quot;</span>

<span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>] = <span class="ruby-string">&quot;&quot;</span>  <span class="ruby-keyword">if</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>] <span class="ruby-operator">==</span> <span class="ruby-string">&quot;/&quot;</span>

<span class="ruby-identifier">env</span>.<span class="ruby-identifier">update</span>(
    <span class="ruby-constant">RACK_VERSION</span>      <span class="ruby-operator">=&gt;</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">VERSION</span>,
    <span class="ruby-constant">RACK_INPUT</span>        <span class="ruby-operator">=&gt;</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">RewindableInput</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">$stdin</span>),
    <span class="ruby-constant">RACK_ERRORS</span>       <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">$stderr</span>,
    <span class="ruby-constant">RACK_MULTITHREAD</span>  <span class="ruby-operator">=&gt;</span> <span class="ruby-keyword">false</span>,
    <span class="ruby-constant">RACK_MULTIPROCESS</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-keyword">true</span>,
    <span class="ruby-constant">RACK_RUNONCE</span>      <span class="ruby-operator">=&gt;</span> <span class="ruby-keyword">true</span>,
    <span class="ruby-constant">RACK_URL_SCHEME</span>   <span class="ruby-operator">=&gt;</span> [<span class="ruby-string">&quot;yes&quot;</span>, <span class="ruby-string">&quot;on&quot;</span>, <span class="ruby-string">&quot;1&quot;</span>].<span class="ruby-identifier">include?</span>(<span class="ruby-constant">ENV</span>[<span class="ruby-constant">HTTPS</span>]) <span class="ruby-operator">?</span> <span class="ruby-string">&quot;https&quot;</span> <span class="ruby-operator">:</span> <span class="ruby-string">&quot;http&quot;</span>
  )

<span class="ruby-identifier">env</span>[<span class="ruby-constant">QUERY_STRING</span>] <span class="ruby-operator">||=</span> <span class="ruby-string">&quot;&quot;</span>
  <span class="ruby-identifier">env</span>[<span class="ruby-constant">HTTP_VERSION</span>] <span class="ruby-operator">||=</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">SERVER_PROTOCOL</span>]
  <span class="ruby-identifier">env</span>[<span class="ruby-constant">REQUEST_PATH</span>] <span class="ruby-operator">||=</span> <span class="ruby-string">&quot;/&quot;</span>

<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span> = <span class="ruby-identifier">app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
  <span class="ruby-keyword">begin</span>
    <span class="ruby-identifier">send_headers</span> <span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>
    <span class="ruby-identifier">send_body</span> <span class="ruby-identifier">body</span>
  <span class="ruby-keyword">ensure</span>
    <span class="ruby-identifier">body</span>.<span class="ruby-identifier">close</span>  <span class="ruby-keyword">if</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">respond_to?</span> <span class="ruby-value">:close</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
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