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<title>url_for (Sinatra::UrlForHelper)</title>
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<pre><span class="ruby-comment cmt"># File lib/sinatra/url_for.rb, line 57</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">url_for</span> <span class="ruby-identifier">url_fragment</span>, <span class="ruby-identifier">mode</span>=<span class="ruby-identifier">:path_only</span>
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">mode</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:path_only</span>
<span class="ruby-identifier">base</span> = <span class="ruby-identifier">request</span>.<span class="ruby-identifier">script_name</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:full</span>
<span class="ruby-identifier">scheme</span> = <span class="ruby-identifier">request</span>.<span class="ruby-identifier">env</span>[<span class="ruby-value str">'HTTP_X_FORWARDED_SCHEME'</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">request</span>.<span class="ruby-identifier">scheme</span>
<span class="ruby-identifier">port</span> = <span class="ruby-identifier">request</span>.<span class="ruby-identifier">env</span>[<span class="ruby-value str">'HTTP_X_FORWARDED_PORT'</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">request</span>.<span class="ruby-identifier">port</span>
<span class="ruby-keyword kw">if</span> ((<span class="ruby-identifier">scheme</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'http'</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">port</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'80'</span>) <span class="ruby-operator">||</span>
(<span class="ruby-identifier">scheme</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'https'</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">port</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'443'</span>))
<span class="ruby-identifier">port</span> = <span class="ruby-value str">""</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">port</span> = <span class="ruby-node">":#{port}"</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">request_host</span> = <span class="ruby-constant">HOSTNAME</span> <span class="ruby-value">? </span><span class="ruby-constant">HOSTNAME</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">request</span>.<span class="ruby-identifier">host</span>
<span class="ruby-identifier">base</span> = <span class="ruby-node">"#{scheme}://#{request_host}#{port}#{request.script_name}"</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">TypeError</span>, <span class="ruby-node">"Unknown url_for mode #{mode}"</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">url_escape</span> = <span class="ruby-constant">URI</span>.<span class="ruby-identifier">escape</span>(<span class="ruby-identifier">url_fragment</span>)
<span class="ruby-comment cmt"># Don't add the base fragment if url_for gets called more than once</span>
<span class="ruby-comment cmt"># per url or the url_fragment passed in is an absolute url</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">url_escape</span>.<span class="ruby-identifier">match</span>(<span class="ruby-node">/^#{base}/</span>) <span class="ruby-keyword kw">or</span> <span class="ruby-identifier">url_escape</span>.<span class="ruby-identifier">match</span>(<span class="ruby-regexp re">/^http/</span>)
<span class="ruby-identifier">url_escape</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-node">"#{base}#{url_escape}"</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span></pre>
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