199 lines
8.6 KiB
HTML
199 lines
8.6 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<title>Class: Rack::ShowStatus</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta http-equiv="Content-Script-Type" content="text/javascript" />
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<link rel="stylesheet" href="../.././rdoc-style.css" type="text/css" media="screen" />
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<script type="text/javascript">
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// <![CDATA[
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function popupCode( url ) {
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window.open(url, "Code", "resizable=yes,scrollbars=yes,toolbar=no,status=no,height=150,width=400")
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function toggleCode( id ) {
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else if ( document.all )
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elem = eval( "document.all." + id );
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else
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elemStyle = elem.style;
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} else {
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elemStyle.display = "none"
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}
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return true;
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}
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// Make codeblocks hidden by default
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document.writeln( "<style type=\"text/css\">div.method-source-code { display: none }</style>" )
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// ]]>
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</script>
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</head>
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<body>
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<div id="classHeader">
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<table class="header-table">
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<tr class="top-aligned-row">
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<td><strong>Class</strong></td>
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<td class="class-name-in-header">Rack::ShowStatus</td>
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</tr>
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<tr class="top-aligned-row">
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<td><strong>In:</strong></td>
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<td>
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<a href="../../files/lib/rack/showstatus_rb.html">
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lib/rack/showstatus.rb
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</a>
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<br />
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</td>
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</tr>
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<tr class="top-aligned-row">
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<td><strong>Parent:</strong></td>
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<td>
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Object
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</td>
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</tr>
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</table>
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<div id="contextContent">
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<div id="description">
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<p>
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<a href="ShowStatus.html">Rack::ShowStatus</a> catches all empty responses
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the app it wraps and replaces them with a site explaining the error.
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</p>
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<p>
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Additional details can be put into <tt>rack.showstatus.detail</tt> and will
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be shown as HTML. If such details exist, the error page is always rendered,
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even if the reply was not empty.
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</p>
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</div>
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<div id="method-list">
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<h3 class="section-bar">Methods</h3>
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<div class="name-list">
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<a href="#M000084">call</a>
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<a href="#M000083">new</a>
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</div>
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</div>
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<!-- if method_list -->
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<div id="methods">
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<h3 class="section-bar">Public Class methods</h3>
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<div id="method-M000083" class="method-detail">
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<a name="M000083"></a>
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<div class="method-heading">
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<a href="#M000083" class="method-signature">
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<span class="method-name">new</span><span class="method-args">(app)</span>
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</a>
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</div>
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<div class="method-description">
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<p><a class="source-toggle" href="#"
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onclick="toggleCode('M000083-source');return false;">[Source]</a></p>
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<div class="method-source-code" id="M000083-source">
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<pre>
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<span class="ruby-comment cmt"># File lib/rack/showstatus.rb, line 14</span>
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14: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">app</span>)
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15: <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span>
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16: <span class="ruby-ivar">@template</span> = <span class="ruby-constant">ERB</span>.<span class="ruby-identifier">new</span>(<span class="ruby-constant">TEMPLATE</span>)
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17: <span class="ruby-keyword kw">end</span>
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</pre>
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</div>
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</div>
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</div>
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<h3 class="section-bar">Public Instance methods</h3>
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<div id="method-M000084" class="method-detail">
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<a name="M000084"></a>
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<div class="method-heading">
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<a href="#M000084" class="method-signature">
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<span class="method-name">call</span><span class="method-args">(env)</span>
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</a>
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</div>
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<div class="method-description">
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<p><a class="source-toggle" href="#"
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onclick="toggleCode('M000084-source');return false;">[Source]</a></p>
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<div class="method-source-code" id="M000084-source">
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<pre>
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<span class="ruby-comment cmt"># File lib/rack/showstatus.rb, line 19</span>
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19: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
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20: <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>)
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21: <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>)
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22: <span class="ruby-identifier">empty</span> = <span class="ruby-identifier">headers</span>[<span class="ruby-value str">'Content-Length'</span>].<span class="ruby-identifier">to_i</span> <span class="ruby-operator"><=</span> <span class="ruby-value">0</span>
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23:
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24: <span class="ruby-comment cmt"># client or server error, or explicit message</span>
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25: <span class="ruby-keyword kw">if</span> (<span class="ruby-identifier">status</span>.<span class="ruby-identifier">to_i</span> <span class="ruby-operator">>=</span> <span class="ruby-value">400</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">empty</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">env</span>[<span class="ruby-value str">"rack.showstatus.detail"</span>]
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26: <span class="ruby-identifier">req</span> = <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Request</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">env</span>)
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27: <span class="ruby-identifier">message</span> = <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Utils</span><span class="ruby-operator">::</span><span class="ruby-constant">HTTP_STATUS_CODES</span>[<span class="ruby-identifier">status</span>.<span class="ruby-identifier">to_i</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">status</span>.<span class="ruby-identifier">to_s</span>
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28: <span class="ruby-identifier">detail</span> = <span class="ruby-identifier">env</span>[<span class="ruby-value str">"rack.showstatus.detail"</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">message</span>
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29: <span class="ruby-identifier">body</span> = <span class="ruby-ivar">@template</span>.<span class="ruby-identifier">result</span>(<span class="ruby-identifier">binding</span>)
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30: <span class="ruby-identifier">size</span> = <span class="ruby-identifier">body</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:bytesize</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">size</span>
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31: [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>.<span class="ruby-identifier">merge</span>(<span class="ruby-value str">"Content-Type"</span> =<span class="ruby-operator">></span> <span class="ruby-value str">"text/html"</span>, <span class="ruby-value str">"Content-Length"</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">size</span>.<span class="ruby-identifier">to_s</span>), [<span class="ruby-identifier">body</span>]]
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32: <span class="ruby-keyword kw">else</span>
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33: [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>]
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34: <span class="ruby-keyword kw">end</span>
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35: <span class="ruby-keyword kw">end</span>
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</pre>
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</div>
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</div>
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</div>
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<div id="validator-badges">
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<p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
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</div>
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</body>
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</html>
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