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<pre><span class="ruby-comment cmt"># File lib/rack/static.rb, line 109</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">path</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">PATH_INFO</span>]
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">can_serve</span>(<span class="ruby-identifier">path</span>)
<span class="ruby-identifier">env</span>[<span class="ruby-value str">"PATH_INFO"</span>] = (<span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/\/$/</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">path</span> <span class="ruby-operator">+</span> <span class="ruby-ivar">@index</span> <span class="ruby-operator">:</span> <span class="ruby-ivar">@urls</span>[<span class="ruby-identifier">path</span>]) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">overwrite_file_path</span>(<span class="ruby-identifier">path</span>)
<span class="ruby-identifier">path</span> = <span class="ruby-identifier">env</span>[<span class="ruby-value str">"PATH_INFO"</span>]
<span class="ruby-identifier">response</span> = <span class="ruby-ivar">@file_server</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">headers</span> = <span class="ruby-identifier">response</span>[<span class="ruby-value">1</span>]
<span class="ruby-identifier">applicable_rules</span>(<span class="ruby-identifier">path</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">rule</span>, <span class="ruby-identifier">new_headers</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">new_headers</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">field</span>, <span class="ruby-identifier">content</span><span class="ruby-operator">|</span> <span class="ruby-identifier">headers</span>[<span class="ruby-identifier">field</span>] = <span class="ruby-identifier">content</span> }
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">response</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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