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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>class Rack::URLMap - rack-2.2.10 Documentation</title> <script type="text/javascript"> var rdoc_rel_prefix = "../"; var index_rel_prefix = "../"; </script> <script src="../js/navigation.js" defer></script> <script src="../js/search.js" defer></script> <script src="../js/search_index.js" defer></script> <script src="../js/searcher.js" defer></script> <script src="../js/darkfish.js" defer></script> <link href="../css/fonts.css" rel="stylesheet"> <link href="../css/rdoc.css" rel="stylesheet"> <body id="top" role="document" class="class"> <nav role="navigation"> <div id="project-navigation"> <div id="home-section" role="region" title="Quick navigation" class="nav-section"> <h2> <a href="../index.html" rel="home">Home</a> </h2> <div id="table-of-contents-navigation"> <a href="../table_of_contents.html#pages">Pages</a> <a href="../table_of_contents.html#classes">Classes</a> <a href="../table_of_contents.html#methods">Methods</a> </div> </div> <div id="search-section" role="search" class="project-section initially-hidden"> <form action="#" method="get" accept-charset="utf-8"> <div id="search-field-wrapper"> <input id="search-field" role="combobox" aria-label="Search" aria-autocomplete="list" aria-controls="search-results" type="text" name="search" placeholder="Search" spellcheck="false" title="Type to search, Up and Down to navigate, Enter to load"> </div> <ul id="search-results" aria-label="Search Results" aria-busy="false" aria-expanded="false" aria-atomic="false" class="initially-hidden"></ul> </form> </div> </div> <div id="class-metadata"> <div id="parent-class-section" class="nav-section"> <h3>Parent</h3> <p class="link">Object </div> <!-- Method Quickref --> <div id="method-list-section" class="nav-section"> <h3>Methods</h3> <ul class="link-list" role="directory"> <li ><a href="#method-c-new">::new</a> <li ><a href="#method-i-call">#call</a> <li ><a href="#method-i-casecmp-3F">#casecmp?</a> <li ><a href="#method-i-remap">#remap</a> </ul> </div> </div> </nav> <main role="main" aria-labelledby="class-Rack::URLMap"> <h1 id="class-Rack::URLMap" class="class"> class Rack::URLMap </h1> <section class="description"> <p><a href="URLMap.html"><code>Rack::URLMap</code></a> takes a hash mapping urls or paths to apps, and dispatches accordingly. Support for HTTP/1.1 host names exists if the URLs start with <code>http://</code> or <code>https://</code>.</p> <p><a href="URLMap.html"><code>URLMap</code></a> modifies the SCRIPT_NAME and PATH_INFO such that the part relevant for dispatch is in the SCRIPT_NAME, and the rest in the PATH_INFO. This should be taken care of when you need to reconstruct the URL in order to create links.</p> <p><a href="URLMap.html"><code>URLMap</code></a> dispatches in such a way that the longest paths are tried first, since they are most specific.</p> </section> <section id="5Buntitled-5D" class="documentation-section"> <section id="public-class-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Public Class Methods</h3> </header> <div id="method-c-new" class="method-detail "> <div class="method-heading"> <span class="method-name">new</span><span class="method-args">(map = {})</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="new-source"> <pre><span class="ruby-comment"># File lib/rack/urlmap.rb, line 19</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">map</span> = {}) <span class="ruby-identifier">remap</span>(<span class="ruby-identifier">map</span>) <span class="ruby-keyword">end</span></pre> </div> </div> </div> </section> <section id="public-instance-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Public Instance Methods</h3> </header> <div id="method-i-call" class="method-detail "> <div class="method-heading"> <span class="method-name">call</span><span class="method-args">(env)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="call-source"> <pre><span class="ruby-comment"># File lib/rack/urlmap.rb, line 46</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">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-identifier">script_name</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>] <span class="ruby-identifier">http_host</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">HTTP_HOST</span>] <span class="ruby-identifier">server_name</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">SERVER_NAME</span>] <span class="ruby-identifier">server_port</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">SERVER_PORT</span>] <span class="ruby-identifier">is_same_server</span> = <span class="ruby-identifier">casecmp?</span>(<span class="ruby-identifier">http_host</span>, <span class="ruby-identifier">server_name</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">casecmp?</span>(<span class="ruby-identifier">http_host</span>, <span class="ruby-node">"#{server_name}:#{server_port}"</span>) <span class="ruby-identifier">is_host_known</span> = <span class="ruby-ivar">@known_hosts</span>.<span class="ruby-identifier">include?</span> <span class="ruby-identifier">http_host</span> <span class="ruby-ivar">@mapping</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">host</span>, <span class="ruby-identifier">location</span>, <span class="ruby-identifier">match</span>, <span class="ruby-identifier">app</span><span class="ruby-operator">|</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">casecmp?</span>(<span class="ruby-identifier">http_host</span>, <span class="ruby-identifier">host</span>) \ <span class="ruby-operator">||</span> <span class="ruby-identifier">casecmp?</span>(<span class="ruby-identifier">server_name</span>, <span class="ruby-identifier">host</span>) \ <span class="ruby-operator">||</span> (<span class="ruby-operator">!</span><span class="ruby-identifier">host</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">is_same_server</span>) \ <span class="ruby-operator">||</span> (<span class="ruby-operator">!</span><span class="ruby-identifier">host</span> <span class="ruby-operator">&&</span> <span class="ruby-operator">!</span><span class="ruby-identifier">is_host_known</span>) <span class="ruby-comment"># If we don't have a matching host, default to the first without a specified host</span> <span class="ruby-keyword">next</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">next</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">m</span> = <span class="ruby-identifier">match</span>.<span class="ruby-identifier">match</span>(<span class="ruby-identifier">path</span>.<span class="ruby-identifier">to_s</span>) <span class="ruby-identifier">rest</span> = <span class="ruby-identifier">m</span>[<span class="ruby-value">1</span>] <span class="ruby-keyword">next</span> <span class="ruby-keyword">unless</span> <span class="ruby-operator">!</span><span class="ruby-identifier">rest</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">rest</span>.<span class="ruby-identifier">empty?</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">rest</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">==</span> <span class="ruby-value">?/</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>] = (<span class="ruby-identifier">script_name</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">location</span>) <span class="ruby-identifier">env</span>[<span class="ruby-constant">PATH_INFO</span>] = <span class="ruby-identifier">rest</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>) <span class="ruby-keyword">end</span> [<span class="ruby-value">404</span>, { <span class="ruby-constant">CONTENT_TYPE</span> <span class="ruby-operator">=></span> <span class="ruby-string">"text/plain"</span>, <span class="ruby-string">"X-Cascade"</span> <span class="ruby-operator">=></span> <span class="ruby-string">"pass"</span> }, [<span class="ruby-node">"Not Found: #{path}"</span>]] <span class="ruby-keyword">ensure</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">PATH_INFO</span>] = <span class="ruby-identifier">path</span> <span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>] = <span class="ruby-identifier">script_name</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-remap" class="method-detail "> <div class="method-heading"> <span class="method-name">remap</span><span class="method-args">(map)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="remap-source"> <pre><span class="ruby-comment"># File lib/rack/urlmap.rb, line 23</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">remap</span>(<span class="ruby-identifier">map</span>) <span class="ruby-ivar">@known_hosts</span> = <span class="ruby-constant">Set</span>[] <span class="ruby-ivar">@mapping</span> = <span class="ruby-identifier">map</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">location</span>, <span class="ruby-identifier">app</span><span class="ruby-operator">|</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">location</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">%r{\Ahttps?://(.*?)(/.*)}</span> <span class="ruby-identifier">host</span>, <span class="ruby-identifier">location</span> = <span class="ruby-node">$1</span>, <span class="ruby-node">$2</span> <span class="ruby-ivar">@known_hosts</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">host</span> <span class="ruby-keyword">else</span> <span class="ruby-identifier">host</span> = <span class="ruby-keyword">nil</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">location</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">==</span> <span class="ruby-value">?/</span> <span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-string">"paths need to start with /"</span> <span class="ruby-keyword">end</span> <span class="ruby-identifier">location</span> = <span class="ruby-identifier">location</span>.<span class="ruby-identifier">chomp</span>(<span class="ruby-string">'/'</span>) <span class="ruby-identifier">match</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">new</span>(<span class="ruby-node">"^#{Regexp.quote(location).gsub('/', '/+')}(.*)"</span>, <span class="ruby-constant">Regexp</span><span class="ruby-operator">::</span><span class="ruby-constant">NOENCODING</span>) [<span class="ruby-identifier">host</span>, <span class="ruby-identifier">location</span>, <span class="ruby-identifier">match</span>, <span class="ruby-identifier">app</span>] }.<span class="ruby-identifier">sort_by</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span>(<span class="ruby-identifier">host</span>, <span class="ruby-identifier">location</span>, <span class="ruby-identifier">_</span>, <span class="ruby-identifier">_</span>)<span class="ruby-operator">|</span> [<span class="ruby-identifier">host</span> <span class="ruby-operator">?</span> <span class="ruby-operator">-</span><span class="ruby-identifier">host</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">:</span> <span class="ruby-constant">Float</span><span class="ruby-operator">::</span><span class="ruby-constant">INFINITY</span>, <span class="ruby-operator">-</span><span class="ruby-identifier">location</span>.<span class="ruby-identifier">size</span>] <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> </section> <section id="private-instance-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Private Instance Methods</h3> </header> <div id="method-i-casecmp-3F" class="method-detail "> <div class="method-heading"> <span class="method-name">casecmp?</span><span class="method-args">(v1, v2)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="casecmp-3F-source"> <pre><span class="ruby-comment"># File lib/rack/urlmap.rb, line 85</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">casecmp?</span>(<span class="ruby-identifier">v1</span>, <span class="ruby-identifier">v2</span>) <span class="ruby-comment"># if both nil, or they're the same string</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">true</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">v1</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">v2</span> <span class="ruby-comment"># if either are nil... (but they're not the same)</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">v1</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">v2</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-comment"># otherwise check they're not case-insensitive the same</span> <span class="ruby-identifier">v1</span>.<span class="ruby-identifier">casecmp</span>(<span class="ruby-identifier">v2</span>).<span class="ruby-identifier">zero?</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> </section> </section> </main> <footer id="validator-badges" role="contentinfo"> <p><a href="https://validator.w3.org/check/referer">Validate</a> <p>Generated by <a href="https://ruby.github.io/rdoc/">RDoc</a> 6.2.1.1. <p>Based on <a href="http://deveiate.org/projects/Darkfish-RDoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>. </footer>
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