Refresh docs
diff --git a/docs/epy/oauth2client.xsrfutil-pysrc.html b/docs/epy/oauth2client.xsrfutil-pysrc.html
index b93db62..be3cad7 100644
--- a/docs/epy/oauth2client.xsrfutil-pysrc.html
+++ b/docs/epy/oauth2client.xsrfutil-pysrc.html
@@ -155,11 +155,18 @@
<a name="L100"></a><tt class="py-lineno">100</tt> <tt class="py-line"> <tt class="py-comment"># The given token should match the generated one with the same time.</tt> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt> <tt class="py-line"> <tt class="py-name">expected_token</tt> <tt class="py-op">=</tt> <tt id="link-11" class="py-name" targets="Function oauth2client.xsrfutil.generate_token()=oauth2client.xsrfutil-module.html#generate_token"><a title="oauth2client.xsrfutil.generate_token" class="py-name" href="#" onclick="return doclink('link-11', 'generate_token', 'link-11');">generate_token</a></tt><tt class="py-op">(</tt><tt class="py-name">key</tt><tt class="py-op">,</tt> <tt class="py-name">user_id</tt><tt class="py-op">,</tt> <tt class="py-name">action_id</tt><tt class="py-op">=</tt><tt class="py-name">action_id</tt><tt class="py-op">,</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt> <tt class="py-line"> <tt class="py-name">when</tt><tt class="py-op">=</tt><tt class="py-name">token_time</tt><tt class="py-op">)</tt> </tt>
-<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">token</tt> <tt class="py-op">!=</tt> <tt class="py-name">expected_token</tt><tt class="py-op">:</tt> </tt>
+<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">token</tt><tt class="py-op">)</tt> <tt class="py-op">!=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">expected_token</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt> <tt class="py-line"> </tt>
-<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">True</tt> </tt>
-</div><a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"> </tt><script type="text/javascript">
+<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"> <tt class="py-comment"># Perform constant time comparison to avoid timing attacks</tt> </tt>
+<a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"> <tt class="py-name">different</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
+<a name="L108"></a><tt class="py-lineno">108</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">y</tt> <tt class="py-keyword">in</tt> <tt class="py-name">zip</tt><tt class="py-op">(</tt><tt class="py-name">token</tt><tt class="py-op">,</tt> <tt class="py-name">expected_token</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
+<a name="L109"></a><tt class="py-lineno">109</tt> <tt class="py-line"> <tt class="py-name">different</tt> <tt class="py-op">|=</tt> <tt class="py-name">ord</tt><tt class="py-op">(</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">^</tt> <tt class="py-name">ord</tt><tt class="py-op">(</tt><tt class="py-name">y</tt><tt class="py-op">)</tt> </tt>
+<a name="L110"></a><tt class="py-lineno">110</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">different</tt><tt class="py-op">:</tt> </tt>
+<a name="L111"></a><tt class="py-lineno">111</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
+<a name="L112"></a><tt class="py-lineno">112</tt> <tt class="py-line"> </tt>
+<a name="L113"></a><tt class="py-lineno">113</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">True</tt> </tt>
+</div><a name="L114"></a><tt class="py-lineno">114</tt> <tt class="py-line"> </tt><script type="text/javascript">
<!--
expandto(location.href);
// -->
@@ -189,7 +196,7 @@
<table border="0" cellpadding="0" cellspacing="0" width="100%%">
<tr>
<td align="left" class="footer">
- Generated by Epydoc 3.0.1 on Thu Sep 6 13:36:16 2012
+ Generated by Epydoc 3.0.1 on Wed Oct 24 08:53:10 2012
</td>
<td align="right" class="footer">
<a target="mainFrame" href="http://epydoc.sourceforge.net"