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<title>call (Rack::ConditionalGet)</title>
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<pre><span class="ruby-comment cmt"># File lib/rack/conditionalget.rb, line 22</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">REQUEST_METHOD</span>]
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">"GET"</span>, <span class="ruby-value str">"HEAD"</span>
<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span> = <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">headers</span> = <span class="ruby-constant">Utils</span><span class="ruby-operator">::</span><span class="ruby-constant">HeaderHash</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">headers</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">status</span> <span class="ruby-operator">==</span> <span class="ruby-value">200</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">fresh?</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">headers</span>)
<span class="ruby-identifier">status</span> = <span class="ruby-value">304</span>
<span class="ruby-identifier">headers</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-constant">CONTENT_TYPE</span>)
<span class="ruby-identifier">headers</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-constant">CONTENT_LENGTH</span>)
<span class="ruby-identifier">original_body</span> = <span class="ruby-identifier">body</span>
<span class="ruby-identifier">body</span> = <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">BodyProxy</span>.<span class="ruby-identifier">new</span>([]) <span class="ruby-keyword kw">do</span>
<span class="ruby-identifier">original_body</span>.<span class="ruby-identifier">close</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">original_body</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:close</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
[<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>]
<span class="ruby-keyword kw">else</span>
<span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span></pre>
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