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<title>decode (OpenID::Server::Decoder)</title>
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<pre><span class="ruby-comment cmt"># File lib/openid/server.rb, line 1242</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">decode</span>(<span class="ruby-identifier">query</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">query</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-keyword kw">or</span> <span class="ruby-identifier">query</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">nil</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">begin</span>
<span class="ruby-identifier">message</span> = <span class="ruby-constant">Message</span>.<span class="ruby-identifier">from_post_args</span>(<span class="ruby-identifier">query</span>)
<span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">InvalidOpenIDNamespace</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">e</span>
<span class="ruby-identifier">query</span> = <span class="ruby-identifier">query</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-identifier">query</span>[<span class="ruby-value str">'openid.ns'</span>] = <span class="ruby-constant">OPENID2_NS</span>
<span class="ruby-identifier">message</span> = <span class="ruby-constant">Message</span>.<span class="ruby-identifier">from_post_args</span>(<span class="ruby-identifier">query</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ProtocolError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">message</span>, <span class="ruby-identifier">e</span>.<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">mode</span> = <span class="ruby-identifier">message</span>.<span class="ruby-identifier">get_arg</span>(<span class="ruby-constant">OPENID_NS</span>, <span class="ruby-value str">'mode'</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">mode</span>
<span class="ruby-identifier">msg</span> = <span class="ruby-identifier">sprintf</span>(<span class="ruby-value str">"No mode value in message %s"</span>, <span class="ruby-identifier">message</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ProtocolError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">message</span>, <span class="ruby-identifier">msg</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">handler</span> = <span class="ruby-ivar">@@handlers</span>.<span class="ruby-identifier">fetch</span>(<span class="ruby-identifier">mode</span>, <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">method</span>(<span class="ruby-value str">'default_decoder'</span>))
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">handler</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">message</span>, <span class="ruby-ivar">@server</span>.<span class="ruby-identifier">op_endpoint</span>)
<span class="ruby-keyword kw">end</span></pre>
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