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<title>Class: Net::SSH::HostKeyVerifier</title>
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<td class="file-title"><span class="file-title-prefix">Class</span><br />Net::SSH::HostKeyVerifier</td>
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<a href="../../../files/lib/net/ssh/host-key-verifier_rb.html">lib/net/ssh/host-key-verifier.rb</a>
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Object
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<div class="sectiontitle">Methods</div>
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<li><a href="#M000331">verify</a></li>
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<div class="sectiontitle">Public Instance methods</div>
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<a name="M000331"></a><b>verify</b>(arguments)
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<pre>
<span class="ruby-comment cmt"># File lib/net/ssh/host-key-verifier.rb, line 8</span>
8: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">verify</span>(<span class="ruby-identifier">arguments</span>)
9: <span class="ruby-identifier">host</span> = <span class="ruby-identifier">canonize</span>(<span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">:peer</span>])
10: <span class="ruby-identifier">matches</span> = <span class="ruby-constant">Net</span><span class="ruby-operator">::</span><span class="ruby-constant">SSH</span><span class="ruby-operator">::</span><span class="ruby-constant">KnownHosts</span>.<span class="ruby-identifier">search_for</span>(<span class="ruby-identifier">host</span>)
11:
12: <span class="ruby-comment cmt"># we've never seen this host before, so just automatically add the key.</span>
13: <span class="ruby-comment cmt"># not the most secure option (since the first hit might be the one that</span>
14: <span class="ruby-comment cmt"># is hacked), but since almost nobody actually compares the key</span>
15: <span class="ruby-comment cmt"># fingerprint, this is a reasonable compromise between usability and</span>
16: <span class="ruby-comment cmt"># security.</span>
17: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">matches</span>.<span class="ruby-identifier">empty?</span>
18: <span class="ruby-constant">Net</span><span class="ruby-operator">::</span><span class="ruby-constant">SSH</span><span class="ruby-operator">::</span><span class="ruby-constant">KnownHosts</span>.<span class="ruby-identifier">add</span>(<span class="ruby-identifier">host</span>, <span class="ruby-identifier">arguments</span>[<span class="ruby-identifier">:key</span>])
19: <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">true</span>
20: <span class="ruby-keyword kw">end</span>
21:
22: <span class="ruby-comment cmt"># If we found any matches, check to see that the key type and</span>
23: <span class="ruby-comment cmt"># blob also match.</span>
24: <span class="ruby-identifier">found</span> = <span class="ruby-identifier">matches</span>.<span class="ruby-identifier">any?</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">key</span><span class="ruby-operator">|</span>
25: <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-identifier">:key</span>].<span class="ruby-identifier">ssh_type</span> <span class="ruby-operator">&&</span>
26: <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-identifier">:key</span>].<span class="ruby-identifier">to_blob</span>
27: <span class="ruby-keyword kw">end</span>
28:
29: <span class="ruby-comment cmt"># If a match was found, return true. Otherwise, raise an exception</span>
30: <span class="ruby-comment cmt"># indicating that the key was not recognized.</span>
31: <span class="ruby-identifier">found</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">process_cache_miss</span>(<span class="ruby-identifier">host</span>, <span class="ruby-identifier">arguments</span>)
32: <span class="ruby-keyword kw">end</span>
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