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<title>class Net::SSH::Verifiers::Secure - net-ssh 4.1.0</title>
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<li ><a href="#method-i-verify">#verify</a>
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<h1 id="class-Net::SSH::Verifiers::Secure" class="class">
class Net::SSH::Verifiers::Secure
</h1>
<section class="description">
<p>Does a strict host verification, looking the server up in the known host
files to see if a key has already been seen for this server. If this server
does not appear in any host file, an exception will be raised
(HostKeyUnknown). This is in contrast to the “Strict” class, which will
silently add the key to your known_hosts file. If the server does appear at
least once, but the key given does not match any known for the server, an
exception will be raised (HostKeyMismatch). Otherwise, this returns true.</p>
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<section id="5Buntitled-5D" class="documentation-section">
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-verify" class="method-detail ">
<div class="method-heading">
<span class="method-name">verify</span><span
class="method-args">(arguments)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="verify-source">
<pre><span class="ruby-comment"># File lib/net/ssh/verifiers/secure.rb, line 15</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">verify</span>(<span class="ruby-identifier">arguments</span>)
<span class="ruby-identifier">host_keys</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">:session</span>].<span class="ruby-identifier">host_keys</span>
<span class="ruby-comment"># We've never seen this host before, so raise an exception.</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">host_keys</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">process_cache_miss</span>(<span class="ruby-identifier">host_keys</span>, <span class="ruby-identifier">arguments</span>, <span class="ruby-constant">HostKeyUnknown</span>, <span class="ruby-string">"is unknown"</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-comment"># If we found any matches, check to see that the key type and</span>
<span class="ruby-comment"># blob also match.</span>
<span class="ruby-identifier">found</span> = <span class="ruby-identifier">host_keys</span>.<span class="ruby-identifier">any?</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">key</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">key</span>.<span class="ruby-identifier">ssh_type</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">:key</span>].<span class="ruby-identifier">ssh_type</span> <span class="ruby-operator">&&</span>
<span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_blob</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">:key</span>].<span class="ruby-identifier">to_blob</span>
<span class="ruby-keyword">end</span>
<span class="ruby-comment"># If a match was found, return true. Otherwise, raise an exception</span>
<span class="ruby-comment"># indicating that the key was not recognized.</span>
<span class="ruby-keyword">unless</span> <span class="ruby-identifier">found</span>
<span class="ruby-identifier">process_cache_miss</span>(<span class="ruby-identifier">host_keys</span>, <span class="ruby-identifier">arguments</span>, <span class="ruby-constant">HostKeyMismatch</span>, <span class="ruby-string">"does not match"</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">found</span>
<span class="ruby-keyword">end</span></pre>
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