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<?xml version="1.0" encoding="utf-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Class: Rack::ShowStatus</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">Rack::ShowStatus</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/lib/rack/showstatus_rb.html">
lib/rack/showstatus.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
Object
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
<a href="ShowStatus.html">Rack::ShowStatus</a> catches all empty responses
the app it wraps and replaces them with a site explaining the error.
</p>
<p>
Additional details can be put into <tt>rack.showstatus.detail</tt> and will
be shown as HTML. If such details exist, the error page is always rendered,
even if the reply was not empty.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000063">call</a>
<a href="#M000062">new</a>
</div>
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</div>
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<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000062" class="method-detail">
<a name="M000062"></a>
<div class="method-heading">
<a href="#M000062" class="method-signature">
<span class="method-name">new</span><span class="method-args">(app)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000062-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000062-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/showstatus.rb, line 14</span>
14: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">app</span>)
15: <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span>
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>)
17: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000063" class="method-detail">
<a name="M000063"></a>
<div class="method-heading">
<a href="#M000063" class="method-signature">
<span class="method-name">call</span><span class="method-args">(env)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000063-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000063-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/showstatus.rb, line 19</span>
19: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
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>)
21:
22: <span class="ruby-comment cmt"># client or server error, or explicit message</span>
23: <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>
24: (<span class="ruby-identifier">body</span>.<span class="ruby-identifier">empty?</span> <span class="ruby-keyword kw">rescue</span> <span class="ruby-keyword kw">false</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">env</span>[<span class="ruby-value str">"rack.showstatus.detail"</span>]
25: <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>)
26: <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>
27: <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>
28: [<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-ivar">@template</span>.<span class="ruby-identifier">result</span>(<span class="ruby-identifier">binding</span>)]]
29: <span class="ruby-keyword kw">else</span>
30: [<span class="ruby-identifier">status</span>, <span class="ruby-identifier">headers</span>, <span class="ruby-identifier">body</span>]
31: <span class="ruby-keyword kw">end</span>
32: <span class="ruby-keyword kw">end</span>
</pre>
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