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<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>call (Rack::Deflater)</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="../../.././rdoc-style.css" type="text/css" media="screen" /> </head> <body class="standalone-code"> <pre><span class="ruby-comment cmt"># File lib/rack/deflater.rb, line 34</span> <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</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">unless</span> <span class="ruby-identifier">should_deflate?</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>) <span class="ruby-keyword kw">return</span> [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>] <span class="ruby-keyword kw">end</span> <span class="ruby-identifier">request</span> = <span class="ruby-constant">Request</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">env</span>) <span class="ruby-identifier">encoding</span> = <span class="ruby-constant">Utils</span>.<span class="ruby-identifier">select_best_encoding</span>(<span class="ruby-node">%w(gzip deflate identity)</span>, <span class="ruby-identifier">request</span>.<span class="ruby-identifier">accept_encoding</span>) <span class="ruby-comment cmt"># Set the Vary HTTP header.</span> <span class="ruby-identifier">vary</span> = <span class="ruby-identifier">headers</span>[<span class="ruby-value str">"Vary"</span>].<span class="ruby-identifier">to_s</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">","</span>).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">strip</span> } <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">vary</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-value str">"*"</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">vary</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-value str">"Accept-Encoding"</span>) <span class="ruby-identifier">headers</span>[<span class="ruby-value str">"Vary"</span>] = <span class="ruby-identifier">vary</span>.<span class="ruby-identifier">push</span>(<span class="ruby-value str">"Accept-Encoding"</span>).<span class="ruby-identifier">join</span>(<span class="ruby-value str">","</span>) <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">case</span> <span class="ruby-identifier">encoding</span> <span class="ruby-keyword kw">when</span> <span class="ruby-value str">"gzip"</span> <span class="ruby-identifier">headers</span>[<span class="ruby-value str">'Content-Encoding'</span>] = <span class="ruby-value str">"gzip"</span> <span class="ruby-identifier">headers</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-constant">CONTENT_LENGTH</span>) <span class="ruby-identifier">mtime</span> = <span class="ruby-identifier">headers</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-value str">"Last-Modified"</span>) <span class="ruby-operator">?</span> <span class="ruby-constant">Time</span>.<span class="ruby-identifier">httpdate</span>(<span class="ruby-identifier">headers</span>[<span class="ruby-value str">"Last-Modified"</span>]) <span class="ruby-operator">:</span> <span class="ruby-constant">Time</span>.<span class="ruby-identifier">now</span> [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-constant">GzipStream</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">body</span>, <span class="ruby-identifier">mtime</span>)] <span class="ruby-keyword kw">when</span> <span class="ruby-value str">"deflate"</span> <span class="ruby-identifier">headers</span>[<span class="ruby-value str">'Content-Encoding'</span>] = <span class="ruby-value str">"deflate"</span> <span class="ruby-identifier">headers</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-constant">CONTENT_LENGTH</span>) [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-constant">DeflateStream</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">body</span>)] <span class="ruby-keyword kw">when</span> <span class="ruby-value str">"identity"</span> [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>] <span class="ruby-keyword kw">when</span> <span class="ruby-keyword kw">nil</span> <span class="ruby-identifier">message</span> = <span class="ruby-node">"An acceptable encoding for the requested resource #{request.fullpath} could not be found."</span> <span class="ruby-identifier">bp</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-identifier">message</span>]) { <span class="ruby-identifier">body</span>.<span class="ruby-identifier">close</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:close</span>) } [<span class="ruby-value">406</span>, {<span class="ruby-constant">CONTENT_TYPE</span> =<span class="ruby-operator">></span> <span class="ruby-value str">"text/plain"</span>, <span class="ruby-constant">CONTENT_LENGTH</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">message</span>.<span class="ruby-identifier">length</span>.<span class="ruby-identifier">to_s</span>}, <span class="ruby-identifier">bp</span>] <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span></pre> </body> </html>
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