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<title>class Rack::MethodOverride - rack-2.2.8 Documentation</title>
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<h3>Parent</h3>
<p class="link">Object
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<!-- 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-allowed_methods">#allowed_methods</a>
<li ><a href="#method-i-call">#call</a>
<li ><a href="#method-i-method_override">#method_override</a>
<li ><a href="#method-i-method_override_param">#method_override_param</a>
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<main role="main" aria-labelledby="class-Rack::MethodOverride">
<h1 id="class-Rack::MethodOverride" class="class">
class Rack::MethodOverride
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="constants-list">
<header>
<h3>Constants</h3>
</header>
<dl>
<dt id="ALLOWED_METHODS">ALLOWED_METHODS
<dd>
<dt id="HTTP_METHODS">HTTP_METHODS
<dd>
<dt id="HTTP_METHOD_OVERRIDE_HEADER">HTTP_METHOD_OVERRIDE_HEADER
<dd>
<dt id="METHOD_OVERRIDE_PARAM_KEY">METHOD_OVERRIDE_PARAM_KEY
<dd>
</dl>
</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">(app)</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/method_override.rb, line 11</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">app</span>)
<span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</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/method_override.rb, line 15</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">call</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">allowed_methods</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">env</span>[<span class="ruby-constant">REQUEST_METHOD</span>])
<span class="ruby-identifier">method</span> = <span class="ruby-identifier">method_override</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-keyword">if</span> <span class="ruby-constant">HTTP_METHODS</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">method</span>)
<span class="ruby-identifier">env</span>[<span class="ruby-constant">RACK_METHODOVERRIDE_ORIGINAL_METHOD</span>] = <span class="ruby-identifier">env</span>[<span class="ruby-constant">REQUEST_METHOD</span>]
<span class="ruby-identifier">env</span>[<span class="ruby-constant">REQUEST_METHOD</span>] = <span class="ruby-identifier">method</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</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></pre>
</div>
</div>
</div>
<div id="method-i-method_override" class="method-detail ">
<div class="method-heading">
<span class="method-name">method_override</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="method_override-source">
<pre><span class="ruby-comment"># File lib/rack/method_override.rb, line 27</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">method_override</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">req</span> = <span class="ruby-constant">Request</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">env</span>)
<span class="ruby-identifier">method</span> = <span class="ruby-identifier">method_override_param</span>(<span class="ruby-identifier">req</span>) <span class="ruby-operator">||</span>
<span class="ruby-identifier">env</span>[<span class="ruby-constant">HTTP_METHOD_OVERRIDE_HEADER</span>]
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">method</span>.<span class="ruby-identifier">to_s</span>.<span class="ruby-identifier">upcase</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">ArgumentError</span>
<span class="ruby-identifier">env</span>[<span class="ruby-constant">RACK_ERRORS</span>].<span class="ruby-identifier">puts</span> <span class="ruby-string">"Invalid string for method"</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-allowed_methods" class="method-detail ">
<div class="method-heading">
<span class="method-name">allowed_methods</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="allowed_methods-source">
<pre><span class="ruby-comment"># File lib/rack/method_override.rb, line 40</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">allowed_methods</span>
<span class="ruby-constant">ALLOWED_METHODS</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-method_override_param" class="method-detail ">
<div class="method-heading">
<span class="method-name">method_override_param</span><span
class="method-args">(req)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="method_override_param-source">
<pre><span class="ruby-comment"># File lib/rack/method_override.rb, line 44</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">method_override_param</span>(<span class="ruby-identifier">req</span>)
<span class="ruby-identifier">req</span>.<span class="ruby-constant">POST</span>[<span class="ruby-constant">METHOD_OVERRIDE_PARAM_KEY</span>]
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">Utils</span><span class="ruby-operator">::</span><span class="ruby-constant">InvalidParameterError</span>, <span class="ruby-constant">Utils</span><span class="ruby-operator">::</span><span class="ruby-constant">ParameterTypeError</span>, <span class="ruby-constant">QueryParser</span><span class="ruby-operator">::</span><span class="ruby-constant">ParamsTooDeepError</span>
<span class="ruby-identifier">req</span>.<span class="ruby-identifier">get_header</span>(<span class="ruby-constant">RACK_ERRORS</span>).<span class="ruby-identifier">puts</span> <span class="ruby-string">"Invalid or incomplete POST params"</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">EOFError</span>
<span class="ruby-identifier">req</span>.<span class="ruby-identifier">get_header</span>(<span class="ruby-constant">RACK_ERRORS</span>).<span class="ruby-identifier">puts</span> <span class="ruby-string">"Bad request content body"</span>
<span class="ruby-keyword">end</span></pre>
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