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Static.html
<?xml version="1.0" encoding="US-ASCII"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta content="text/html; charset=US-ASCII" http-equiv="Content-Type" /> <title>Class: Rack::Static</title> <link rel="stylesheet" href="../rdoc.css" type="text/css" media="screen" /> <script src="../js/jquery.js" type="text/javascript" charset="utf-8"></script> <script src="../js/thickbox-compressed.js" type="text/javascript" charset="utf-8"></script> <script src="../js/quicksearch.js" type="text/javascript" charset="utf-8"></script> <script src="../js/darkfish.js" type="text/javascript" charset="utf-8"></script> </head> <body id="top" class="class"> <div id="metadata"> <div id="home-metadata"> <div id="home-section" class="section"> <h3 class="section-header"> <a href="../index.html">Home</a> <a href="../index.html#classes">Classes</a> <a 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<li><a href="#method-i-route_file">#route_file</a></li> </ul> </div> </div> <div id="project-metadata"> <div id="fileindex-section" class="section project-section"> <h3 class="section-header">Files</h3> <ul> <li class="file"><a href="../KNOWN-ISSUES.html">KNOWN-ISSUES</a></li> </ul> </div> <div id="classindex-section" class="section project-section"> <h3 class="section-header">Class/Module Index <span class="search-toggle"><img src="../images/find.png" height="16" width="16" alt="[+]" title="show/hide quicksearch" /></span></h3> <form action="#" method="get" accept-charset="utf-8" class="initially-hidden"> <fieldset> <legend>Quicksearch</legend> <input type="text" name="quicksearch" value="" class="quicksearch-field" /> </fieldset> </form> <ul class="link-list"> <li><a href="../Rack.html">Rack</a></li> <li><a href="../Rack/Auth.html">Rack::Auth</a></li> <li><a href="../Rack/Auth/AbstractHandler.html">Rack::Auth::AbstractHandler</a></li> <li><a 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href="../Rack/Session/Cookie/Base64.html">Rack::Session::Cookie::Base64</a></li> <li><a href="../Rack/Session/Cookie/Base64/JSON.html">Rack::Session::Cookie::Base64::JSON</a></li> <li><a href="../Rack/Session/Cookie/Base64/Marshal.html">Rack::Session::Cookie::Base64::Marshal</a></li> <li><a href="../Rack/Session/Cookie/Base64/ZipJSON.html">Rack::Session::Cookie::Base64::ZipJSON</a></li> <li><a href="../Rack/Session/Cookie/Identity.html">Rack::Session::Cookie::Identity</a></li> <li><a href="../Rack/Session/Memcache.html">Rack::Session::Memcache</a></li> <li><a href="../Rack/Session/Pool.html">Rack::Session::Pool</a></li> <li><a href="../Rack/ShowExceptions.html">Rack::ShowExceptions</a></li> <li><a href="../Rack/ShowStatus.html">Rack::ShowStatus</a></li> <li><a href="../Rack/Static.html">Rack::Static</a></li> <li><a href="../Rack/TempfileReaper.html">Rack::TempfileReaper</a></li> <li><a href="../Rack/URLMap.html">Rack::URLMap</a></li> <li><a href="../Rack/Utils.html">Rack::Utils</a></li> <li><a href="../Rack/Utils/Context.html">Rack::Utils::Context</a></li> <li><a href="../Rack/Utils/HeaderHash.html">Rack::Utils::HeaderHash</a></li> <li><a href="../Rack/Utils/InvalidParameterError.html">Rack::Utils::InvalidParameterError</a></li> <li><a href="../Rack/Utils/KeySpaceConstrainedParams.html">Rack::Utils::KeySpaceConstrainedParams</a></li> <li><a href="../Rack/Multipart.html">Rack::Utils::Multipart</a></li> <li><a href="../Rack/Utils/OkJson.html">Rack::Utils::OkJson</a></li> <li><a href="../Rack/Utils/OkJson/Error.html">Rack::Utils::OkJson::Error</a></li> <li><a href="../Rack/Utils/OkJson/Utf8Error.html">Rack::Utils::OkJson::Utf8Error</a></li> <li><a href="../Rack/Utils/ParameterTypeError.html">Rack::Utils::ParameterTypeError</a></li> <li><a href="../FCGI.html">FCGI</a></li> <li><a href="../FCGI/Stream.html">FCGI::Stream</a></li> <li><a href="../WEBrick.html">WEBrick</a></li> <li><a href="../WEBrick/HTTPResponse.html">WEBrick::HTTPResponse</a></li> <li><a href="../Object.html">Object</a></li> </ul> <div id="no-class-search-results" style="display: none;">No matching classes.</div> </div> </div> </div> <div id="documentation"> <h1 class="class">Rack::Static</h1> <div id="description" class="description"> <p>The <a href="Static.html">Rack::Static</a> middleware intercepts requests for static files (javascript files, images, stylesheets, etc) based on the url prefixes or route mappings passed in the options, and serves them using a <a href="File.html">Rack::File</a> object. This allows a <a href="../Rack.html">Rack</a> stack to serve both static and dynamic content.</p> <p>Examples:</p> <p>Serve all requests beginning with /media from the "media" folder located in the current directory (ie media/*):</p> <pre>use Rack::Static, :urls => ["/media"]</pre> <p>Serve all requests beginning with /css or /images from the folder "public" in the current directory (ie public/css/* and public/images/*):</p> <pre>use Rack::Static, :urls => ["/css", "/images"], :root => "public"</pre> <p>Serve all requests to / with "index.html" from the folder "public" in the current directory (ie public/index.html):</p> <pre>use Rack::Static, :urls => {"/" => 'index.html'}, :root => 'public'</pre> <p>Serve all requests normally from the folder "public" in the current directory but uses index.html as default route for "/"</p> <pre>use Rack::Static, :urls => [""], :root => 'public', :index => 'index.html'</pre> <p>Set custom HTTP Headers for based on rules:</p> <pre> use Rack::Static, :root => 'public', :header_rules => [ [rule, {header_field => content, header_field => content}], [rule, {header_field => content}] ] Rules for selecting files: 1) All files Provide the :all symbol :all => Matches every file 2) Folders Provide the folder path as a string '/folder' or '/folder/subfolder' => Matches files in a certain folder 3) File Extensions Provide the file extensions as an array ['css', 'js'] or %w(css js) => Matches files ending in .css or .js 4) Regular Expressions / Regexp Provide a regular expression %r{\.(?:css|js)\z} => Matches files ending in .css or .js /\.(?:eot|ttf|otf|woff2|woff|svg)\z/ => Matches files ending in the most common web font formats (.eot, .ttf, .otf, .woff2, .woff, .svg) Note: This Regexp is available as a shortcut, using the :fonts rule 5) Font Shortcut Provide the :fonts symbol :fonts => Uses the Regexp rule stated right above to match all common web font endings Rule Ordering: Rules are applied in the order that they are provided. List rather general rules above special ones. Complete example use case including HTTP header rules: use Rack::Static, :root => 'public', :header_rules => [ # Cache all static files in public caches (e.g. Rack::Cache) # as well as in the browser [:all, {'Cache-Control' => 'public, max-age=31536000'}], # Provide web fonts with cross-origin access-control-headers # Firefox requires this when serving assets using a Content Delivery Network [:fonts, {'Access-Control-Allow-Origin' => '*'}] ]</pre> </div><!-- description --> <div id="5Buntitled-5D" class="documentation-section"> <!-- Methods --> <div id="public-class-method-details" class="method-section section"> <h3 class="section-header">Public Class Methods</h3> <div id="new-method" class="method-detail "> <a name="method-c-new"></a> <div class="method-heading"> <span class="method-name">new</span><span class="method-args">(app, options={})</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/static.rb, line 83</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">app</span>, <span class="ruby-identifier">options</span>={}) <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span> <span class="ruby-ivar">@urls</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:urls</span>] <span class="ruby-operator">||</span> [<span class="ruby-string">"/favicon.ico"</span>] <span class="ruby-ivar">@index</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:index</span>] <span class="ruby-identifier">root</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:root</span>] <span class="ruby-operator">||</span> <span class="ruby-constant">Dir</span>.<span class="ruby-identifier">pwd</span> <span class="ruby-comment"># HTTP Headers</span> <span class="ruby-ivar">@header_rules</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:header_rules</span>] <span class="ruby-operator">||</span> [] <span class="ruby-comment"># Allow for legacy :cache_control option while prioritizing global header_rules setting</span> <span class="ruby-ivar">@header_rules</span>.<span class="ruby-identifier">insert</span>(<span class="ruby-value">0</span>, [<span class="ruby-value">:all</span>, {<span class="ruby-string">'Cache-Control'</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:cache_control</span>]}]) <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:cache_control</span>] <span class="ruby-ivar">@file_server</span> = <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">root</span>) <span class="ruby-keyword">end</span></pre> </div><!-- new-source --> </div> </div><!-- new-method --> </div><!-- public-class-method-details --> <div id="public-instance-method-details" class="method-section section"> <h3 class="section-header">Public Instance Methods</h3> <div id="applicable_rules-method" class="method-detail "> <a name="method-i-applicable_rules"></a> <div class="method-heading"> <span class="method-name">applicable_rules</span><span class="method-args">(path)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Convert HTTP header rules to HTTP headers</p> <div class="method-source-code" id="applicable_rules-source"> <pre> <span class="ruby-comment"># File lib/rack/static.rb, line 129</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">applicable_rules</span>(<span class="ruby-identifier">path</span>) <span class="ruby-ivar">@header_rules</span>.<span class="ruby-identifier">find_all</span> <span class="ruby-keyword">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-keyword">case</span> <span class="ruby-identifier">rule</span> <span class="ruby-keyword">when</span> <span class="ruby-value">:all</span> <span class="ruby-keyword">true</span> <span class="ruby-keyword">when</span> <span class="ruby-value">:fonts</span> <span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\.(?:ttf|otf|eot|woff2|woff|svg)\z/</span> <span class="ruby-keyword">when</span> <span class="ruby-constant">String</span> <span class="ruby-identifier">path</span> = <span class="ruby-operator">::</span><span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Utils</span>.<span class="ruby-identifier">unescape</span>(<span class="ruby-identifier">path</span>) <span class="ruby-identifier">path</span>.<span class="ruby-identifier">start_with?</span>(<span class="ruby-identifier">rule</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">path</span>.<span class="ruby-identifier">start_with?</span>(<span class="ruby-string">'/'</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">rule</span>) <span class="ruby-keyword">when</span> <span class="ruby-constant">Array</span> <span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-node">/\.(#{rule.join('|')})\z/</span> <span class="ruby-keyword">when</span> <span class="ruby-constant">Regexp</span> <span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-identifier">rule</span> <span class="ruby-keyword">else</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div><!-- applicable_rules-source --> </div> </div><!-- applicable_rules-method --> <div id="call-method" class="method-detail "> <a name="method-i-call"></a> <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/static.rb, line 109</span> <span class="ruby-keyword">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">if</span> <span class="ruby-identifier">can_serve</span>(<span class="ruby-identifier">path</span>) <span class="ruby-identifier">env</span>[<span class="ruby-string">"PATH_INFO"</span>] = (<span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\/$/</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">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-string">"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">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">end</span> <span class="ruby-identifier">response</span> <span class="ruby-keyword">else</span> <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div><!-- call-source --> </div> </div><!-- call-method --> <div id="can_serve-method" class="method-detail "> <a name="method-i-can_serve"></a> <div class="method-heading"> <span class="method-name">can_serve</span><span class="method-args">(path)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="can_serve-source"> <pre> <span class="ruby-comment"># File lib/rack/static.rb, line 105</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">can_serve</span>(<span class="ruby-identifier">path</span>) <span class="ruby-identifier">route_file</span>(<span class="ruby-identifier">path</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">overwrite_file_path</span>(<span class="ruby-identifier">path</span>) <span class="ruby-keyword">end</span></pre> </div><!-- can_serve-source --> </div> </div><!-- can_serve-method --> <div id="overwrite_file_path-method" class="method-detail "> <a name="method-i-overwrite_file_path"></a> <div class="method-heading"> <span class="method-name">overwrite_file_path</span><span class="method-args">(path)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="overwrite_file_path-source"> <pre> <span class="ruby-comment"># File lib/rack/static.rb, line 97</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">overwrite_file_path</span>(<span class="ruby-identifier">path</span>) <span class="ruby-ivar">@urls</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">Hash</span>) <span class="ruby-operator">&&</span> <span class="ruby-ivar">@urls</span>.<span class="ruby-identifier">key?</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-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\/$/</span> <span class="ruby-keyword">end</span></pre> </div><!-- overwrite_file_path-source --> </div> </div><!-- overwrite_file_path-method --> <div id="route_file-method" class="method-detail "> <a name="method-i-route_file"></a> <div class="method-heading"> <span class="method-name">route_file</span><span class="method-args">(path)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="route_file-source"> <pre> <span class="ruby-comment"># File lib/rack/static.rb, line 101</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">route_file</span>(<span class="ruby-identifier">path</span>) <span class="ruby-ivar">@urls</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">Array</span>) <span class="ruby-operator">&&</span> <span class="ruby-ivar">@urls</span>.<span class="ruby-identifier">any?</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">url</span><span class="ruby-operator">|</span> <span class="ruby-identifier">path</span>.<span class="ruby-identifier">index</span>(<span class="ruby-identifier">url</span>) <span class="ruby-operator">==</span> <span class="ruby-value">0</span> } <span class="ruby-keyword">end</span></pre> </div><!-- route_file-source --> </div> </div><!-- route_file-method --> </div><!-- public-instance-method-details --> </div><!-- 5Buntitled-5D --> </div><!-- documentation --> <div id="validator-badges"> <p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p> <p><small>Generated with the <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish Rdoc Generator</a> 2</small>.</p> </div> </body> </html>
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