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<title>The Evolution of Finger: using a single factory for
multiple protocols</title>
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<h1>The Evolution of Finger: using a single factory for
multiple protocols</h1>
<h2>Introduction</h2>
<p> This is the eighth part of the Twisted tutorial <a
href="index.xhtml">Twisted from Scratch, or The Evolution of Finger</a>.</p>
<p>In this part, we add HTTPS support to our web frontend, showing how to have
a single factory listen on multiple ports.</p>
<h2>Support HTTPS</h2>
<p>All we need to do to code an HTTPS site is just write a context factory (in
this case, which loads the certificate from a certain file) and then use the
twisted.application.internet.SSLServer method. Note that one factory (in this
case, a site) can listen on multiple ports with multiple protocols.</p>
<a href="listings/finger/finger22.py" class="py-listing">finger22.py</a>
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