You are viewing a plain text version of this content. The canonical link for it is here.
Posted to site-dev@james.apache.org by rd...@apache.org on 2008/08/21 22:21:47 UTC
svn commit: r687852 [40/47] - in /james/site/trunk/www/mailet/standard: ./
apidocs/ apidocs/org/ apidocs/org/apache/ apidocs/org/apache/james/
apidocs/org/apache/james/transport/
apidocs/org/apache/james/transport/mailets/ apidocs/org/apache/james/tran...
Added: james/site/trunk/www/mailet/standard/xref/org/apache/james/transport/mailets/ClamAVScan.html
URL: http://svn.apache.org/viewvc/james/site/trunk/www/mailet/standard/xref/org/apache/james/transport/mailets/ClamAVScan.html?rev=687852&view=auto
==============================================================================
--- james/site/trunk/www/mailet/standard/xref/org/apache/james/transport/mailets/ClamAVScan.html (added)
+++ james/site/trunk/www/mailet/standard/xref/org/apache/james/transport/mailets/ClamAVScan.html Thu Aug 21 13:21:38 2008
@@ -0,0 +1,979 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
+<title>ClamAVScan xref</title>
+<link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" />
+</head>
+<body>
+<div id="overview"><a href="../../../../../../apidocs/org/apache/james/transport/mailets/ClamAVScan.html">View Javadoc</a></div><pre>
+
+<a name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment">**************************************************************</em>
+<a name="2" href="#2">2</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one *</em>
+<a name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file *</em>
+<a name="4" href="#4">4</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information *</em>
+<a name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file *</em>
+<a name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the *</em>
+<a name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance *</em>
+<a name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at *</em>
+<a name="9" href="#9">9</a> <em class="jxr_javadoccomment"> * *</em>
+<a name="10" href="#10">10</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a> *</em>
+<a name="11" href="#11">11</a> <em class="jxr_javadoccomment"> * *</em>
+<a name="12" href="#12">12</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, *</em>
+<a name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * software distributed under the License is distributed on an *</em>
+<a name="14" href="#14">14</a> <em class="jxr_javadoccomment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *</em>
+<a name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * KIND, either express or implied. See the License for the *</em>
+<a name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * specific language governing permissions and limitations *</em>
+<a name="17" href="#17">17</a> <em class="jxr_javadoccomment"> * under the License. *</em>
+<a name="18" href="#18">18</a> <em class="jxr_javadoccomment"> ****************************************************************/</em>
+<a name="19" href="#19">19</a>
+<a name="20" href="#20">20</a>
+<a name="21" href="#21">21</a>
+<a name="22" href="#22">22</a> <strong class="jxr_keyword">package</strong> org.apache.james.transport.mailets;
+<a name="23" href="#23">23</a>
+<a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.mailet.RFC2822Headers;
+<a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.mailet.GenericMailet;
+<a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.mailet.Mail;
+<a name="27" href="#27">27</a>
+<a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> javax.mail.MessagingException;
+<a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> javax.mail.internet.MimeMessage;
+<a name="30" href="#30">30</a>
+<a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> java.io.BufferedOutputStream;
+<a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> java.io.BufferedReader;
+<a name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> java.io.BufferedWriter;
+<a name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
+<a name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> java.io.InputStreamReader;
+<a name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> java.io.OutputStream;
+<a name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> java.io.OutputStreamWriter;
+<a name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> java.io.PrintWriter;
+<a name="39" href="#39">39</a> <strong class="jxr_keyword">import</strong> java.io.Reader;
+<a name="40" href="#40">40</a> <strong class="jxr_keyword">import</strong> java.io.StringWriter;
+<a name="41" href="#41">41</a> <strong class="jxr_keyword">import</strong> java.io.Writer;
+<a name="42" href="#42">42</a> <strong class="jxr_keyword">import</strong> java.net.ConnectException;
+<a name="43" href="#43">43</a> <strong class="jxr_keyword">import</strong> java.net.InetAddress;
+<a name="44" href="#44">44</a> <strong class="jxr_keyword">import</strong> java.net.Socket;
+<a name="45" href="#45">45</a> <strong class="jxr_keyword">import</strong> java.net.UnknownHostException;
+<a name="46" href="#46">46</a> <strong class="jxr_keyword">import</strong> java.util.HashSet;
+<a name="47" href="#47">47</a> <strong class="jxr_keyword">import</strong> java.util.Iterator;
+<a name="48" href="#48">48</a> <strong class="jxr_keyword">import</strong> java.util.Set;
+<a name="49" href="#49">49</a>
+<a name="50" href="#50">50</a>
+<a name="51" href="#51">51</a> <em class="jxr_javadoccomment">/**</em>
+<a name="52" href="#52">52</a> <em class="jxr_javadoccomment"> * <P>Does an antivirus scan check using a ClamAV daemon (CLAMD)</P></em>
+<a name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * </em>
+<a name="54" href="#54">54</a> <em class="jxr_javadoccomment"> * <P> Interacts directly with the daemon using the "stream" method,</em>
+<a name="55" href="#55">55</a> <em class="jxr_javadoccomment"> * which should have the lowest possible overhead.</P></em>
+<a name="56" href="#56">56</a> <em class="jxr_javadoccomment"> * <P>The CLAMD daemon will typically reside on <I>localhost</I>, but could reside on a</em>
+<a name="57" href="#57">57</a> <em class="jxr_javadoccomment"> * different host.</em>
+<a name="58" href="#58">58</a> <em class="jxr_javadoccomment"> * It may also consist on a set of multiple daemons, each residing on a different</em>
+<a name="59" href="#59">59</a> <em class="jxr_javadoccomment"> * server and on different IP number.</em>
+<a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> * In such case a DNS host name with multiple IP addresses (round-robin load sharing)</em>
+<a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> * is supported by the mailet (but on the same port number).</P></em>
+<a name="62" href="#62">62</a> <em class="jxr_javadoccomment"> * </em>
+<a name="63" href="#63">63</a> <em class="jxr_javadoccomment"> * <P>Handles the following init parameters:</P></em>
+<a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> * <UL></em>
+<a name="65" href="#65">65</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;debug&gt;</CODE>.</LI></em>
+<a name="66" href="#66">66</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;host&gt;</CODE>: the host name of the server where CLAMD runs. It can either be</em>
+<a name="67" href="#67">67</a> <em class="jxr_javadoccomment"> * a machine name, such as</em>
+<a name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * "<code>java.sun.com</code>", or a textual representation of its</em>
+<a name="69" href="#69">69</a> <em class="jxr_javadoccomment"> * IP address. If a literal IP address is supplied, only the</em>
+<a name="70" href="#70">70</a> <em class="jxr_javadoccomment"> * validity of the address format is checked.</em>
+<a name="71" href="#71">71</a> <em class="jxr_javadoccomment"> * If the machine name resolves to multiple IP addresses, <I>round-robin load sharing</I> will</em>
+<a name="72" href="#72">72</a> <em class="jxr_javadoccomment"> * be used.</em>
+<a name="73" href="#73">73</a> <em class="jxr_javadoccomment"> * The default is <CODE>localhost</CODE>.</LI></em>
+<a name="74" href="#74">74</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;port&gt;</CODE>: the port on which CLAMD listens. The default is <I>3310</I>.</LI></em>
+<a name="75" href="#75">75</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;maxPings&gt;</CODE>: the maximum number of connection retries during startup.</em>
+<a name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * If the value is <I>0</I> no startup test will be done.</em>
+<a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> * The default is <I>6</I>.</LI></em>
+<a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;pingIntervalMilli&gt;</CODE>: the interval (in milliseconds)</em>
+<a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> * between each connection retry during startup.</em>
+<a name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * The default is <I>30000</I> (30 seconds).</LI></em>
+<a name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * <LI><CODE>&lt;streamBufferSize&gt;</CODE>: the BufferedOutputStream buffer size to use </em>
+<a name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * writing to the <I>stream connection</I>. The default is <I>8192</I>.</LI></em>
+<a name="83" href="#83">83</a> <em class="jxr_javadoccomment"> * </UL></em>
+<a name="84" href="#84">84</a> <em class="jxr_javadoccomment"> * </em>
+<a name="85" href="#85">85</a> <em class="jxr_javadoccomment"> * <P>The actions performed are as follows:</P></em>
+<a name="86" href="#86">86</a> <em class="jxr_javadoccomment"> * <UL></em>
+<a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * <LI>During initialization:</LI></em>
+<a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * <OL></em>
+<a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> * <LI>Gets all <CODE>config.xml</CODE> parameters, handling the defaults;</LI></em>
+<a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * <LI>resolves the <CODE>&lt;host&gt;</CODE> parameter, creating the round-robin IP list;</LI></em>
+<a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * <LI>connects to CLAMD at the first IP in the round-robin list, on</em>
+<a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * the specified <CODE>&lt;port&gt;</CODE>;</LI></em>
+<a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * <LI>if unsuccessful, retries every <CODE>&lt;pingIntervalMilli&gt;</CODE> milliseconds up to</em>
+<a name="94" href="#94">94</a> <em class="jxr_javadoccomment"> * <CODE>&lt;maxPings&gt;</CODE> times;</LI></em>
+<a name="95" href="#95">95</a> <em class="jxr_javadoccomment"> * <LI>sends a <CODE>PING</CODE> request;</LI></em>
+<a name="96" href="#96">96</a> <em class="jxr_javadoccomment"> * <LI>waits for a <CODE>PONG</CODE> answer;</LI></em>
+<a name="97" href="#97">97</a> <em class="jxr_javadoccomment"> * <LI>repeats steps 3-6 for every other IP resolved.</em>
+<a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> * </OL></em>
+<a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * <LI>For every mail</LI></em>
+<a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * <OL></em>
+<a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * <LI>connects to CLAMD at the "next" IP in the round-robin list, on</em>
+<a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> * the specified <CODE>&lt;port&gt;</CODE>, and increments the "next" index;</em>
+<a name="103" href="#103">103</a> <em class="jxr_javadoccomment"> * if the connection request is not accepted tries with the next one</em>
+<a name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * in the list unless all of them have failed;</LI></em>
+<a name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * <LI>sends a "<CODE>STREAM</CODE>" request;</LI></em>
+<a name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * <LI>parses the "<CODE>PORT <I>streamPort</I></CODE>" answer obtaining the port number;</LI></em>
+<a name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * <LI>makes a second connection (the <I>stream connection</I>) to CLAMD at the same host (or IP)</em>
+<a name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * on the <I>streamPort</I> just obtained;</LI></em>
+<a name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * <LI>sends the mime message to CLAMD (using {@link MimeMessage#writeTo(java.io.OutputStream)})</em>
+<a name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * through the <I>stream connection</I>;</LI></em>
+<a name="111" href="#111">111</a> <em class="jxr_javadoccomment"> * <LI>closes the <I>stream connection</I>;</LI></em>
+<a name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * <LI>gets the "<CODE>OK</CODE>" or "<CODE>... FOUND</CODE>" answer from the main connection;</LI></em>
+<a name="113" href="#113">113</a> <em class="jxr_javadoccomment"> * <LI>closes the main connection;</LI></em>
+<a name="114" href="#114">114</a> <em class="jxr_javadoccomment"> * <LI>sets the "<CODE>org.apache.james.infected</CODE>" <I>mail attribute</I> to either</em>
+<a name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * "<CODE>true</CODE>" or "<CODE>false</CODE>";</LI></em>
+<a name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * <LI>adds the "<CODE>X-MessageIsInfected</CODE>" <I>header</I> to either</em>
+<a name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * "<CODE>true</CODE>" or "<CODE>false</CODE>";</LI></em>
+<a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * </OL></em>
+<a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * </UL></em>
+<a name="120" href="#120">120</a> <em class="jxr_javadoccomment"> * </em>
+<a name="121" href="#121">121</a> <em class="jxr_javadoccomment"> * <P>Some notes regarding <a href="<a href="http://www.clamav.net/" target="alexandria_uri">http://www.clamav.net/</a>">clamav.conf</a>:</p></em>
+<a name="122" href="#122">122</a> <em class="jxr_javadoccomment"> * <UL></em>
+<a name="123" href="#123">123</a> <em class="jxr_javadoccomment"> * <LI><CODE>LocalSocket</CODE> must be commented out</LI></em>
+<a name="124" href="#124">124</a> <em class="jxr_javadoccomment"> * <LI><CODE>TCPSocket</CODE> must be set to a port# (typically 3310)</LI></em>
+<a name="125" href="#125">125</a> <em class="jxr_javadoccomment"> * <LI><CODE>StreamMaxLength</CODE> must be &gt;= the James config.xml parameter</em>
+<a name="126" href="#126">126</a> <em class="jxr_javadoccomment"> * &lt;<CODE>maxmessagesize</CODE>&gt; in SMTP &lt;<CODE>handler</CODE>&gt;</LI></em>
+<a name="127" href="#127">127</a> <em class="jxr_javadoccomment"> * <LI><CODE>MaxThreads</CODE> should? be &gt;= the James config.xml parameter</em>
+<a name="128" href="#128">128</a> <em class="jxr_javadoccomment"> * &lt;<CODE>threads</CODE>&gt; in &lt;<CODE>spoolmanager</CODE>&gt;</LI></em>
+<a name="129" href="#129">129</a> <em class="jxr_javadoccomment"> * <LI><CODE>ScanMail</CODE> must be uncommented</LI></em>
+<a name="130" href="#130">130</a> <em class="jxr_javadoccomment"> * </UL></em>
+<a name="131" href="#131">131</a> <em class="jxr_javadoccomment"> *</em>
+<a name="132" href="#132">132</a> <em class="jxr_javadoccomment"> * <P>Here follows an example of config.xml definitions deploying CLAMD on localhost,</em>
+<a name="133" href="#133">133</a> <em class="jxr_javadoccomment"> * and handling the infected messages:</P></em>
+<a name="134" href="#134">134</a> <em class="jxr_javadoccomment"> * <PRE><CODE></em>
+<a name="135" href="#135">135</a> <em class="jxr_javadoccomment"> *</em>
+<a name="136" href="#136">136</a> <em class="jxr_javadoccomment"> * ...</em>
+<a name="137" href="#137">137</a> <em class="jxr_javadoccomment"> *</em>
+<a name="138" href="#138">138</a> <em class="jxr_javadoccomment"> * &lt;!-- Do an antivirus scan --&gt;</em>
+<a name="139" href="#139">139</a> <em class="jxr_javadoccomment"> * &lt;mailet match="All" class="ClamAVScan" onMailetException="ignore"/&gt;</em>
+<a name="140" href="#140">140</a> <em class="jxr_javadoccomment"> *</em>
+<a name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * &lt;!-- If infected go to virus processor --&gt;</em>
+<a name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * &lt;mailet match="HasMailAttributeWithValue=org.apache.james.infected, true" class="ToProcessor"&gt;</em>
+<a name="143" href="#143">143</a> <em class="jxr_javadoccomment"> * &lt;processor&gt; virus &lt;/processor&gt;</em>
+<a name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * &lt;/mailet&gt;</em>
+<a name="145" href="#145">145</a> <em class="jxr_javadoccomment"> *</em>
+<a name="146" href="#146">146</a> <em class="jxr_javadoccomment"> * &lt;!-- Check attachment extensions for possible viruses --&gt;</em>
+<a name="147" href="#147">147</a> <em class="jxr_javadoccomment"> * &lt;mailet match="AttachmentFileNameIs=-d -z *.exe *.com *.bat *.cmd *.pif *.scr *.vbs *.avi *.mp3 *.mpeg *.shs" class="ToProcessor"&gt;</em>
+<a name="148" href="#148">148</a> <em class="jxr_javadoccomment"> * &lt;processor&gt; bad-extensions &lt;/processor&gt;</em>
+<a name="149" href="#149">149</a> <em class="jxr_javadoccomment"> * &lt;/mailet&gt;</em>
+<a name="150" href="#150">150</a> <em class="jxr_javadoccomment"> *</em>
+<a name="151" href="#151">151</a> <em class="jxr_javadoccomment"> * ...</em>
+<a name="152" href="#152">152</a> <em class="jxr_javadoccomment"> *</em>
+<a name="153" href="#153">153</a> <em class="jxr_javadoccomment"> * &lt;!-- Messages containing viruses --&gt;</em>
+<a name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * &lt;processor name="virus"&gt;</em>
+<a name="155" href="#155">155</a> <em class="jxr_javadoccomment"> *</em>
+<a name="156" href="#156">156</a> <em class="jxr_javadoccomment"> * &lt;!-- To avoid a loop while bouncing --&gt;</em>
+<a name="157" href="#157">157</a> <em class="jxr_javadoccomment"> * &lt;mailet match="All" class="SetMailAttribute"&gt;</em>
+<a name="158" href="#158">158</a> <em class="jxr_javadoccomment"> * &lt;org.apache.james.infected&gt;true, bouncing&lt;/org.apache.james.infected&gt;</em>
+<a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * &lt;/mailet&gt;</em>
+<a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> *</em>
+<a name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * &lt;mailet match="SMTPAuthSuccessful" class="Bounce"&gt;</em>
+<a name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * &lt;sender&gt;bounce-admin@xxx.com&lt;/sender&gt;</em>
+<a name="163" href="#163">163</a> <em class="jxr_javadoccomment"> * &lt;inline&gt;heads&lt;/inline&gt;</em>
+<a name="164" href="#164">164</a> <em class="jxr_javadoccomment"> * &lt;attachment&gt;none&lt;/attachment&gt;</em>
+<a name="165" href="#165">165</a> <em class="jxr_javadoccomment"> * &lt;notice&gt; Warning: We were unable to deliver the message below because it was found infected by virus(es). &lt;/notice&gt;</em>
+<a name="166" href="#166">166</a> <em class="jxr_javadoccomment"> * &lt;/mailet&gt;</em>
+<a name="167" href="#167">167</a> <em class="jxr_javadoccomment"> *</em>
+<a name="168" href="#168">168</a> <em class="jxr_javadoccomment"> * &lt;!--</em>
+<a name="169" href="#169">169</a> <em class="jxr_javadoccomment"> * &lt;mailet match="All" class="ToRepository"&gt;</em>
+<a name="170" href="#170">170</a> <em class="jxr_javadoccomment"> * &lt;repositoryPath&gt;file://var/mail/infected/&lt;/repositoryPath&gt;</em>
+<a name="171" href="#171">171</a> <em class="jxr_javadoccomment"> * &lt;/mailet&gt;</em>
+<a name="172" href="#172">172</a> <em class="jxr_javadoccomment"> * --&gt;</em>
+<a name="173" href="#173">173</a> <em class="jxr_javadoccomment"> *</em>
+<a name="174" href="#174">174</a> <em class="jxr_javadoccomment"> * &lt;mailet match="All" class="Null" /&gt;</em>
+<a name="175" href="#175">175</a> <em class="jxr_javadoccomment"> * &lt;/processor&gt;</em>
+<a name="176" href="#176">176</a> <em class="jxr_javadoccomment"> * </CODE></PRE></em>
+<a name="177" href="#177">177</a> <em class="jxr_javadoccomment"> *</em>
+<a name="178" href="#178">178</a> <em class="jxr_javadoccomment"> * @version 2.2.1</em>
+<a name="179" href="#179">179</a> <em class="jxr_javadoccomment"> * @since 2.2.1</em>
+<a name="180" href="#180">180</a> <em class="jxr_javadoccomment"> * @see <a href="<a href="http://www.clamav.net/" target="alexandria_uri">http://www.clamav.net/</a>">ClamAV Home Page</a></em>
+<a name="181" href="#181">181</a> <em class="jxr_javadoccomment"> * @see <a href="<a href="http://www.sosdg.org/clamav-win32/" target="alexandria_uri">http://www.sosdg.org/clamav-win32/</a>">ClamAV For Windows</a></em>
+<a name="182" href="#182">182</a> <em class="jxr_javadoccomment"> */</em>
+<a name="183" href="#183">183</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/james/transport/mailets/ClamAVScan.html">ClamAVScan</a> <strong class="jxr_keyword">extends</strong> GenericMailet {
+<a name="184" href="#184">184</a>
+<a name="185" href="#185">185</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_PORT = 3310;
+<a name="186" href="#186">186</a>
+<a name="187" href="#187">187</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_MAX_PINGS = 6;
+<a name="188" href="#188">188</a>
+<a name="189" href="#189">189</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_PING_INTERVAL_MILLI = 30000;
+<a name="190" href="#190">190</a>
+<a name="191" href="#191">191</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_STREAM_BUFFER_SIZE = 8192;
+<a name="192" href="#192">192</a>
+<a name="193" href="#193">193</a> <em class="jxr_comment">//private static final int DEFAULT_CONNECTION_TIMEOUT = 20000;</em>
+<a name="194" href="#194">194</a>
+<a name="195" href="#195">195</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String STREAM_PORT_STRING = <span class="jxr_string">"PORT "</span>;
+<a name="196" href="#196">196</a>
+<a name="197" href="#197">197</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String FOUND_STRING = <span class="jxr_string">"FOUND"</span>;
+<a name="198" href="#198">198</a>
+<a name="199" href="#199">199</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String MAIL_ATTRIBUTE_NAME = <span class="jxr_string">"org.apache.james.infected"</span>;
+<a name="200" href="#200">200</a>
+<a name="201" href="#201">201</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String HEADER_NAME = <span class="jxr_string">"X-MessageIsInfected"</span>;
+<a name="202" href="#202">202</a>
+<a name="203" href="#203">203</a> <em class="jxr_javadoccomment">/**</em>
+<a name="204" href="#204">204</a> <em class="jxr_javadoccomment"> * Holds value of property debug.</em>
+<a name="205" href="#205">205</a> <em class="jxr_javadoccomment"> */</em>
+<a name="206" href="#206">206</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> debug;
+<a name="207" href="#207">207</a>
+<a name="208" href="#208">208</a> <em class="jxr_javadoccomment">/**</em>
+<a name="209" href="#209">209</a> <em class="jxr_javadoccomment"> * Holds value of property host.</em>
+<a name="210" href="#210">210</a> <em class="jxr_javadoccomment"> */</em>
+<a name="211" href="#211">211</a> <strong class="jxr_keyword">private</strong> String host;
+<a name="212" href="#212">212</a>
+<a name="213" href="#213">213</a> <em class="jxr_javadoccomment">/**</em>
+<a name="214" href="#214">214</a> <em class="jxr_javadoccomment"> * Holds value of property port.</em>
+<a name="215" href="#215">215</a> <em class="jxr_javadoccomment"> */</em>
+<a name="216" href="#216">216</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> port;
+<a name="217" href="#217">217</a>
+<a name="218" href="#218">218</a> <em class="jxr_javadoccomment">/**</em>
+<a name="219" href="#219">219</a> <em class="jxr_javadoccomment"> * Holds value of property maxPings.</em>
+<a name="220" href="#220">220</a> <em class="jxr_javadoccomment"> */</em>
+<a name="221" href="#221">221</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> maxPings;
+<a name="222" href="#222">222</a>
+<a name="223" href="#223">223</a> <em class="jxr_javadoccomment">/**</em>
+<a name="224" href="#224">224</a> <em class="jxr_javadoccomment"> * Holds value of property pingIntervalMilli.</em>
+<a name="225" href="#225">225</a> <em class="jxr_javadoccomment"> */</em>
+<a name="226" href="#226">226</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> pingIntervalMilli;
+<a name="227" href="#227">227</a>
+<a name="228" href="#228">228</a> <em class="jxr_javadoccomment">/**</em>
+<a name="229" href="#229">229</a> <em class="jxr_javadoccomment"> * Holds value of property streamBufferSize.</em>
+<a name="230" href="#230">230</a> <em class="jxr_javadoccomment"> */</em>
+<a name="231" href="#231">231</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> streamBufferSize;
+<a name="232" href="#232">232</a>
+<a name="233" href="#233">233</a> <em class="jxr_javadoccomment">/**</em>
+<a name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * Holds value of property addresses.</em>
+<a name="235" href="#235">235</a> <em class="jxr_javadoccomment"> */</em>
+<a name="236" href="#236">236</a> <strong class="jxr_keyword">private</strong> InetAddress[] addresses;
+<a name="237" href="#237">237</a>
+<a name="238" href="#238">238</a> <em class="jxr_javadoccomment">/**</em>
+<a name="239" href="#239">239</a> <em class="jxr_javadoccomment"> * Holds the index of the next address to connect to</em>
+<a name="240" href="#240">240</a> <em class="jxr_javadoccomment"> */</em>
+<a name="241" href="#241">241</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> nextAddressIndex;
+<a name="242" href="#242">242</a>
+<a name="243" href="#243">243</a> <em class="jxr_javadoccomment">/**</em>
+<a name="244" href="#244">244</a> <em class="jxr_javadoccomment"> * Return a string describing this mailet.</em>
+<a name="245" href="#245">245</a> <em class="jxr_javadoccomment"> *</em>
+<a name="246" href="#246">246</a> <em class="jxr_javadoccomment"> * @return a string describing this mailet</em>
+<a name="247" href="#247">247</a> <em class="jxr_javadoccomment"> */</em>
+<a name="248" href="#248">248</a> <strong class="jxr_keyword">public</strong> String getMailetInfo() {
+<a name="249" href="#249">249</a> <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Antivirus Check using ClamAV (CLAMD)"</span>;
+<a name="250" href="#250">250</a> }
+<a name="251" href="#251">251</a>
+<a name="252" href="#252">252</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Gets the expected init parameters. */</em>
+<a name="253" href="#253">253</a> <strong class="jxr_keyword">protected</strong> String[] getAllowedInitParameters() {
+<a name="254" href="#254">254</a> String[] allowedArray = {
+<a name="255" href="#255">255</a> <em class="jxr_comment">// "static",</em>
+<a name="256" href="#256">256</a> <span class="jxr_string">"debug"</span>,
+<a name="257" href="#257">257</a> <span class="jxr_string">"host"</span>,
+<a name="258" href="#258">258</a> <span class="jxr_string">"port"</span>,
+<a name="259" href="#259">259</a> <span class="jxr_string">"maxPings"</span>,
+<a name="260" href="#260">260</a> <span class="jxr_string">"pingIntervalMilli"</span>,
+<a name="261" href="#261">261</a> <span class="jxr_string">"streamBufferSize"</span>
+<a name="262" href="#262">262</a> };
+<a name="263" href="#263">263</a> <strong class="jxr_keyword">return</strong> allowedArray;
+<a name="264" href="#264">264</a> }
+<a name="265" href="#265">265</a>
+<a name="266" href="#266">266</a> <em class="jxr_javadoccomment">/**</em>
+<a name="267" href="#267">267</a> <em class="jxr_javadoccomment"> * Initializer for property debug.</em>
+<a name="268" href="#268">268</a> <em class="jxr_javadoccomment"> */</em>
+<a name="269" href="#269">269</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initDebug() {
+<a name="270" href="#270">270</a> String debugParam = getInitParameter(<span class="jxr_string">"debug"</span>);
+<a name="271" href="#271">271</a> setDebug((debugParam == <strong class="jxr_keyword">null</strong>) ? false : <strong class="jxr_keyword">new</strong> Boolean(debugParam).booleanValue());
+<a name="272" href="#272">272</a> }
+<a name="273" href="#273">273</a>
+<a name="274" href="#274">274</a> <em class="jxr_javadoccomment">/**</em>
+<a name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * Getter for property debug.</em>
+<a name="276" href="#276">276</a> <em class="jxr_javadoccomment"> * @return Value of property debug.</em>
+<a name="277" href="#277">277</a> <em class="jxr_javadoccomment"> */</em>
+<a name="278" href="#278">278</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isDebug() {
+<a name="279" href="#279">279</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.debug;
+<a name="280" href="#280">280</a> }
+<a name="281" href="#281">281</a>
+<a name="282" href="#282">282</a> <em class="jxr_javadoccomment">/**</em>
+<a name="283" href="#283">283</a> <em class="jxr_javadoccomment"> * Setter for property debug.</em>
+<a name="284" href="#284">284</a> <em class="jxr_javadoccomment"> * @param debug New value of property debug.</em>
+<a name="285" href="#285">285</a> <em class="jxr_javadoccomment"> */</em>
+<a name="286" href="#286">286</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setDebug(<strong class="jxr_keyword">boolean</strong> debug) {
+<a name="287" href="#287">287</a> <strong class="jxr_keyword">this</strong>.debug = debug;
+<a name="288" href="#288">288</a> }
+<a name="289" href="#289">289</a>
+<a name="290" href="#290">290</a> <em class="jxr_javadoccomment">/**</em>
+<a name="291" href="#291">291</a> <em class="jxr_javadoccomment"> * Initializer for property host.</em>
+<a name="292" href="#292">292</a> <em class="jxr_javadoccomment"> * @throws UnknownHostException if unable to resolve the host name, or if invalid</em>
+<a name="293" href="#293">293</a> <em class="jxr_javadoccomment"> */</em>
+<a name="294" href="#294">294</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initHost() <strong class="jxr_keyword">throws</strong> UnknownHostException {
+<a name="295" href="#295">295</a> setHost(getInitParameter(<span class="jxr_string">"host"</span>));
+<a name="296" href="#296">296</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="297" href="#297">297</a> log(<span class="jxr_string">"host: "</span> + getHost());
+<a name="298" href="#298">298</a> }
+<a name="299" href="#299">299</a> }
+<a name="300" href="#300">300</a>
+<a name="301" href="#301">301</a> <em class="jxr_javadoccomment">/**</em>
+<a name="302" href="#302">302</a> <em class="jxr_javadoccomment"> * Getter for property host.</em>
+<a name="303" href="#303">303</a> <em class="jxr_javadoccomment"> * @return Value of property host.</em>
+<a name="304" href="#304">304</a> <em class="jxr_javadoccomment"> */</em>
+<a name="305" href="#305">305</a> <strong class="jxr_keyword">public</strong> String getHost() {
+<a name="306" href="#306">306</a>
+<a name="307" href="#307">307</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.host;
+<a name="308" href="#308">308</a> }
+<a name="309" href="#309">309</a>
+<a name="310" href="#310">310</a> <em class="jxr_javadoccomment">/**</em>
+<a name="311" href="#311">311</a> <em class="jxr_javadoccomment"> * Setter for property host.</em>
+<a name="312" href="#312">312</a> <em class="jxr_javadoccomment"> * Resolves also the host name into the corresponding IP addresses, issues</em>
+<a name="313" href="#313">313</a> <em class="jxr_javadoccomment"> * a {@link #setAddresses} and resets the <CODE>nextAddressIndex</CODE></em>
+<a name="314" href="#314">314</a> <em class="jxr_javadoccomment"> * variable to <I>0</I> for dealing with <I>round-robin</I>.</em>
+<a name="315" href="#315">315</a> <em class="jxr_javadoccomment"> * @param host New value of property host.</em>
+<a name="316" href="#316">316</a> <em class="jxr_javadoccomment"> * @throws UnknownHostException if unable to resolve the host name, or if invalid</em>
+<a name="317" href="#317">317</a> <em class="jxr_javadoccomment"> */</em>
+<a name="318" href="#318">318</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setHost(String host) <strong class="jxr_keyword">throws</strong> UnknownHostException {
+<a name="319" href="#319">319</a>
+<a name="320" href="#320">320</a> <strong class="jxr_keyword">this</strong>.host = host;
+<a name="321" href="#321">321</a>
+<a name="322" href="#322">322</a> setAddresses(InetAddress.getAllByName(host));
+<a name="323" href="#323">323</a>
+<a name="324" href="#324">324</a> nextAddressIndex = 0;
+<a name="325" href="#325">325</a> }
+<a name="326" href="#326">326</a>
+<a name="327" href="#327">327</a> <em class="jxr_javadoccomment">/**</em>
+<a name="328" href="#328">328</a> <em class="jxr_javadoccomment"> * Initializer for property port.</em>
+<a name="329" href="#329">329</a> <em class="jxr_javadoccomment"> */</em>
+<a name="330" href="#330">330</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initPort() {
+<a name="331" href="#331">331</a> String portParam = getInitParameter(<span class="jxr_string">"port"</span>);
+<a name="332" href="#332">332</a> setPort((portParam == <strong class="jxr_keyword">null</strong>) ? DEFAULT_PORT : Integer.parseInt(portParam));
+<a name="333" href="#333">333</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="334" href="#334">334</a> log(<span class="jxr_string">"port: "</span> + getPort());
+<a name="335" href="#335">335</a> }
+<a name="336" href="#336">336</a> }
+<a name="337" href="#337">337</a>
+<a name="338" href="#338">338</a> <em class="jxr_javadoccomment">/**</em>
+<a name="339" href="#339">339</a> <em class="jxr_javadoccomment"> * Getter for property port.</em>
+<a name="340" href="#340">340</a> <em class="jxr_javadoccomment"> * @return Value of property port.</em>
+<a name="341" href="#341">341</a> <em class="jxr_javadoccomment"> */</em>
+<a name="342" href="#342">342</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getPort() {
+<a name="343" href="#343">343</a>
+<a name="344" href="#344">344</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.port;
+<a name="345" href="#345">345</a> }
+<a name="346" href="#346">346</a>
+<a name="347" href="#347">347</a> <em class="jxr_javadoccomment">/**</em>
+<a name="348" href="#348">348</a> <em class="jxr_javadoccomment"> * Setter for property port.</em>
+<a name="349" href="#349">349</a> <em class="jxr_javadoccomment"> * @param port New value of property port.</em>
+<a name="350" href="#350">350</a> <em class="jxr_javadoccomment"> */</em>
+<a name="351" href="#351">351</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setPort(<strong class="jxr_keyword">int</strong> port) {
+<a name="352" href="#352">352</a>
+<a name="353" href="#353">353</a> <strong class="jxr_keyword">this</strong>.port = port;
+<a name="354" href="#354">354</a> }
+<a name="355" href="#355">355</a>
+<a name="356" href="#356">356</a> <em class="jxr_javadoccomment">/**</em>
+<a name="357" href="#357">357</a> <em class="jxr_javadoccomment"> * Initializer for property maxPings.</em>
+<a name="358" href="#358">358</a> <em class="jxr_javadoccomment"> */</em>
+<a name="359" href="#359">359</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initMaxPings() {
+<a name="360" href="#360">360</a> String maxPingsParam = getInitParameter(<span class="jxr_string">"maxPings"</span>);
+<a name="361" href="#361">361</a> setMaxPings((maxPingsParam == <strong class="jxr_keyword">null</strong>) ? DEFAULT_MAX_PINGS : Integer.parseInt(maxPingsParam));
+<a name="362" href="#362">362</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="363" href="#363">363</a> log(<span class="jxr_string">"maxPings: "</span> + getMaxPings());
+<a name="364" href="#364">364</a> }
+<a name="365" href="#365">365</a> }
+<a name="366" href="#366">366</a>
+<a name="367" href="#367">367</a> <em class="jxr_javadoccomment">/**</em>
+<a name="368" href="#368">368</a> <em class="jxr_javadoccomment"> * Getter for property maxPings.</em>
+<a name="369" href="#369">369</a> <em class="jxr_javadoccomment"> * @return Value of property maxPings.</em>
+<a name="370" href="#370">370</a> <em class="jxr_javadoccomment"> */</em>
+<a name="371" href="#371">371</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getMaxPings() {
+<a name="372" href="#372">372</a>
+<a name="373" href="#373">373</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.maxPings;
+<a name="374" href="#374">374</a> }
+<a name="375" href="#375">375</a>
+<a name="376" href="#376">376</a> <em class="jxr_javadoccomment">/**</em>
+<a name="377" href="#377">377</a> <em class="jxr_javadoccomment"> * Setter for property maxPings.</em>
+<a name="378" href="#378">378</a> <em class="jxr_javadoccomment"> * @param maxPings New value of property maxPings.</em>
+<a name="379" href="#379">379</a> <em class="jxr_javadoccomment"> */</em>
+<a name="380" href="#380">380</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setMaxPings(<strong class="jxr_keyword">int</strong> maxPings) {
+<a name="381" href="#381">381</a>
+<a name="382" href="#382">382</a> <strong class="jxr_keyword">this</strong>.maxPings = maxPings;
+<a name="383" href="#383">383</a> }
+<a name="384" href="#384">384</a>
+<a name="385" href="#385">385</a> <em class="jxr_javadoccomment">/**</em>
+<a name="386" href="#386">386</a> <em class="jxr_javadoccomment"> * Initializer for property pingIntervalMilli.</em>
+<a name="387" href="#387">387</a> <em class="jxr_javadoccomment"> */</em>
+<a name="388" href="#388">388</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initPingIntervalMilli() {
+<a name="389" href="#389">389</a> String pingIntervalMilliParam = getInitParameter(<span class="jxr_string">"pingIntervalMilli"</span>);
+<a name="390" href="#390">390</a> setPingIntervalMilli((pingIntervalMilliParam == <strong class="jxr_keyword">null</strong>) ? DEFAULT_PING_INTERVAL_MILLI : Integer.parseInt(pingIntervalMilliParam));
+<a name="391" href="#391">391</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="392" href="#392">392</a> log(<span class="jxr_string">"pingIntervalMilli: "</span> + getPingIntervalMilli());
+<a name="393" href="#393">393</a> }
+<a name="394" href="#394">394</a> }
+<a name="395" href="#395">395</a>
+<a name="396" href="#396">396</a> <em class="jxr_javadoccomment">/**</em>
+<a name="397" href="#397">397</a> <em class="jxr_javadoccomment"> * Getter for property pingIntervalMilli.</em>
+<a name="398" href="#398">398</a> <em class="jxr_javadoccomment"> * @return Value of property pingIntervalMilli.</em>
+<a name="399" href="#399">399</a> <em class="jxr_javadoccomment"> */</em>
+<a name="400" href="#400">400</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getPingIntervalMilli() {
+<a name="401" href="#401">401</a>
+<a name="402" href="#402">402</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.pingIntervalMilli;
+<a name="403" href="#403">403</a> }
+<a name="404" href="#404">404</a>
+<a name="405" href="#405">405</a> <em class="jxr_javadoccomment">/**</em>
+<a name="406" href="#406">406</a> <em class="jxr_javadoccomment"> * Setter for property pingIntervalMilli.</em>
+<a name="407" href="#407">407</a> <em class="jxr_javadoccomment"> * @param pingIntervalMilli New value of property pingIntervalMilli.</em>
+<a name="408" href="#408">408</a> <em class="jxr_javadoccomment"> */</em>
+<a name="409" href="#409">409</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setPingIntervalMilli(<strong class="jxr_keyword">int</strong> pingIntervalMilli) {
+<a name="410" href="#410">410</a>
+<a name="411" href="#411">411</a> <strong class="jxr_keyword">this</strong>.pingIntervalMilli = pingIntervalMilli;
+<a name="412" href="#412">412</a> }
+<a name="413" href="#413">413</a>
+<a name="414" href="#414">414</a> <em class="jxr_javadoccomment">/**</em>
+<a name="415" href="#415">415</a> <em class="jxr_javadoccomment"> * Initializer for property streamBufferSize.</em>
+<a name="416" href="#416">416</a> <em class="jxr_javadoccomment"> */</em>
+<a name="417" href="#417">417</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initStreamBufferSize() {
+<a name="418" href="#418">418</a> String streamBufferSizeParam = getInitParameter(<span class="jxr_string">"streamBufferSize"</span>);
+<a name="419" href="#419">419</a> setStreamBufferSize((streamBufferSizeParam == <strong class="jxr_keyword">null</strong>) ? DEFAULT_STREAM_BUFFER_SIZE : Integer.parseInt(streamBufferSizeParam));
+<a name="420" href="#420">420</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="421" href="#421">421</a> log(<span class="jxr_string">"streamBufferSize: "</span> + getStreamBufferSize());
+<a name="422" href="#422">422</a> }
+<a name="423" href="#423">423</a> }
+<a name="424" href="#424">424</a>
+<a name="425" href="#425">425</a> <em class="jxr_javadoccomment">/**</em>
+<a name="426" href="#426">426</a> <em class="jxr_javadoccomment"> * Getter for property streamBufferSize.</em>
+<a name="427" href="#427">427</a> <em class="jxr_javadoccomment"> * @return Value of property streamBufferSize.</em>
+<a name="428" href="#428">428</a> <em class="jxr_javadoccomment"> */</em>
+<a name="429" href="#429">429</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getStreamBufferSize() {
+<a name="430" href="#430">430</a>
+<a name="431" href="#431">431</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.streamBufferSize;
+<a name="432" href="#432">432</a> }
+<a name="433" href="#433">433</a>
+<a name="434" href="#434">434</a> <em class="jxr_javadoccomment">/**</em>
+<a name="435" href="#435">435</a> <em class="jxr_javadoccomment"> * Setter for property streamBufferSize.</em>
+<a name="436" href="#436">436</a> <em class="jxr_javadoccomment"> * @param streamBufferSize New value of property streamBufferSize.</em>
+<a name="437" href="#437">437</a> <em class="jxr_javadoccomment"> */</em>
+<a name="438" href="#438">438</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setStreamBufferSize(<strong class="jxr_keyword">int</strong> streamBufferSize) {
+<a name="439" href="#439">439</a>
+<a name="440" href="#440">440</a> <strong class="jxr_keyword">this</strong>.streamBufferSize = streamBufferSize;
+<a name="441" href="#441">441</a> }
+<a name="442" href="#442">442</a>
+<a name="443" href="#443">443</a> <em class="jxr_javadoccomment">/**</em>
+<a name="444" href="#444">444</a> <em class="jxr_javadoccomment"> * Indexed getter for property addresses.</em>
+<a name="445" href="#445">445</a> <em class="jxr_javadoccomment"> * @param index Index of the property.</em>
+<a name="446" href="#446">446</a> <em class="jxr_javadoccomment"> * @return Value of the property at <CODE>index</CODE>.</em>
+<a name="447" href="#447">447</a> <em class="jxr_javadoccomment"> */</em>
+<a name="448" href="#448">448</a> <strong class="jxr_keyword">protected</strong> InetAddress getAddresses(<strong class="jxr_keyword">int</strong> index) {
+<a name="449" href="#449">449</a>
+<a name="450" href="#450">450</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.addresses[index];
+<a name="451" href="#451">451</a> }
+<a name="452" href="#452">452</a>
+<a name="453" href="#453">453</a> <em class="jxr_javadoccomment">/**</em>
+<a name="454" href="#454">454</a> <em class="jxr_javadoccomment"> * Getter for property addresses.</em>
+<a name="455" href="#455">455</a> <em class="jxr_javadoccomment"> * @return Value of property addresses.</em>
+<a name="456" href="#456">456</a> <em class="jxr_javadoccomment"> */</em>
+<a name="457" href="#457">457</a> <strong class="jxr_keyword">protected</strong> InetAddress[] getAddresses() {
+<a name="458" href="#458">458</a>
+<a name="459" href="#459">459</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.addresses;
+<a name="460" href="#460">460</a> }
+<a name="461" href="#461">461</a>
+<a name="462" href="#462">462</a> <em class="jxr_javadoccomment">/**</em>
+<a name="463" href="#463">463</a> <em class="jxr_javadoccomment"> * Setter for property addresses.</em>
+<a name="464" href="#464">464</a> <em class="jxr_javadoccomment"> * @param addresses New value of property addresses.</em>
+<a name="465" href="#465">465</a> <em class="jxr_javadoccomment"> */</em>
+<a name="466" href="#466">466</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> setAddresses(InetAddress[] addresses) {
+<a name="467" href="#467">467</a>
+<a name="468" href="#468">468</a> <strong class="jxr_keyword">this</strong>.addresses = addresses;
+<a name="469" href="#469">469</a> }
+<a name="470" href="#470">470</a>
+<a name="471" href="#471">471</a> <em class="jxr_javadoccomment">/**</em>
+<a name="472" href="#472">472</a> <em class="jxr_javadoccomment"> * Getter for property nextAddress.</em>
+<a name="473" href="#473">473</a> <em class="jxr_javadoccomment"> * </em>
+<a name="474" href="#474">474</a> <em class="jxr_javadoccomment"> * Gets the address of the next CLAMD server to connect to in this round, using round-robin.</em>
+<a name="475" href="#475">475</a> <em class="jxr_javadoccomment"> * Increments the nextAddressIndex for the next round.</em>
+<a name="476" href="#476">476</a> <em class="jxr_javadoccomment"> * @return Value of property address.</em>
+<a name="477" href="#477">477</a> <em class="jxr_javadoccomment"> */</em>
+<a name="478" href="#478">478</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">synchronized</strong> InetAddress getNextAddress() {
+<a name="479" href="#479">479</a>
+<a name="480" href="#480">480</a> InetAddress address = getAddresses(nextAddressIndex);
+<a name="481" href="#481">481</a>
+<a name="482" href="#482">482</a> nextAddressIndex++;
+<a name="483" href="#483">483</a> <strong class="jxr_keyword">if</strong> (nextAddressIndex >= getAddressesCount()) {
+<a name="484" href="#484">484</a> nextAddressIndex = 0;
+<a name="485" href="#485">485</a> }
+<a name="486" href="#486">486</a>
+<a name="487" href="#487">487</a> <strong class="jxr_keyword">return</strong> address;
+<a name="488" href="#488">488</a> }
+<a name="489" href="#489">489</a>
+<a name="490" href="#490">490</a> <em class="jxr_javadoccomment">/**</em>
+<a name="491" href="#491">491</a> <em class="jxr_javadoccomment"> * Getter for property addressesCount.</em>
+<a name="492" href="#492">492</a> <em class="jxr_javadoccomment"> * @return Value of property addressesCount.</em>
+<a name="493" href="#493">493</a> <em class="jxr_javadoccomment"> */</em>
+<a name="494" href="#494">494</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getAddressesCount() {
+<a name="495" href="#495">495</a> <strong class="jxr_keyword">return</strong> getAddresses().length;
+<a name="496" href="#496">496</a> }
+<a name="497" href="#497">497</a>
+<a name="498" href="#498">498</a> <em class="jxr_javadoccomment">/**</em>
+<a name="499" href="#499">499</a> <em class="jxr_javadoccomment"> * Gets a Socket connected to CLAMD.</em>
+<a name="500" href="#500">500</a> <em class="jxr_javadoccomment"> * </em>
+<a name="501" href="#501">501</a> <em class="jxr_javadoccomment"> * Will loop though the round-robin address list until the first one accepts</em>
+<a name="502" href="#502">502</a> <em class="jxr_javadoccomment"> * the connection.</em>
+<a name="503" href="#503">503</a> <em class="jxr_javadoccomment"> * @return a socket connected to CLAMD</em>
+<a name="504" href="#504">504</a> <em class="jxr_javadoccomment"> * @throws MessagingException if no CLAMD in the round-robin address list has accepted the connection</em>
+<a name="505" href="#505">505</a> <em class="jxr_javadoccomment"> */</em>
+<a name="506" href="#506">506</a> <strong class="jxr_keyword">protected</strong> Socket getClamdSocket() <strong class="jxr_keyword">throws</strong> MessagingException {
+<a name="507" href="#507">507</a>
+<a name="508" href="#508">508</a> InetAddress address = <strong class="jxr_keyword">null</strong>;
+<a name="509" href="#509">509</a>
+<a name="510" href="#510">510</a> Set usedAddresses = <strong class="jxr_keyword">new</strong> HashSet(getAddressesCount());
+<a name="511" href="#511">511</a> <strong class="jxr_keyword">for</strong> (;;) {
+<a name="512" href="#512">512</a> <em class="jxr_comment">// this do-while loop is needed because other threads could in the meantime</em>
+<a name="513" href="#513">513</a> <em class="jxr_comment">// calling getNextAddress(), and because of that the current thread may skip</em>
+<a name="514" href="#514">514</a> <em class="jxr_comment">// some working address</em>
+<a name="515" href="#515">515</a> <strong class="jxr_keyword">do</strong> {
+<a name="516" href="#516">516</a> <strong class="jxr_keyword">if</strong> (usedAddresses.size() >= getAddressesCount()) {
+<a name="517" href="#517">517</a> String logText = <span class="jxr_string">"Unable to connect to CLAMD. All addresses failed."</span>;
+<a name="518" href="#518">518</a> log(logText + <span class="jxr_string">" Giving up."</span>);
+<a name="519" href="#519">519</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> MessagingException(logText);
+<a name="520" href="#520">520</a> }
+<a name="521" href="#521">521</a> address = getNextAddress();
+<a name="522" href="#522">522</a> } <strong class="jxr_keyword">while</strong> (!usedAddresses.add(address));
+<a name="523" href="#523">523</a> <strong class="jxr_keyword">try</strong> {
+<a name="524" href="#524">524</a> <em class="jxr_comment">// get the socket</em>
+<a name="525" href="#525">525</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Socket(address, getPort());
+<a name="526" href="#526">526</a> } <strong class="jxr_keyword">catch</strong> (IOException ioe) {
+<a name="527" href="#527">527</a> log(<span class="jxr_string">"Exception caught acquiring main socket to CLAMD on "</span>
+<a name="528" href="#528">528</a> + address + <span class="jxr_string">" on port "</span> + getPort() + <span class="jxr_string">": "</span> + ioe.getMessage());
+<a name="529" href="#529">529</a> address = getNextAddress();
+<a name="530" href="#530">530</a> <em class="jxr_comment">// retry</em>
+<a name="531" href="#531">531</a> <strong class="jxr_keyword">continue</strong>;
+<a name="532" href="#532">532</a> }
+<a name="533" href="#533">533</a> }
+<a name="534" href="#534">534</a> }
+<a name="535" href="#535">535</a>
+<a name="536" href="#536">536</a> <em class="jxr_javadoccomment">/**</em>
+<a name="537" href="#537">537</a> <em class="jxr_javadoccomment"> * Mailet initialization routine.</em>
+<a name="538" href="#538">538</a> <em class="jxr_javadoccomment"> */</em>
+<a name="539" href="#539">539</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> init() <strong class="jxr_keyword">throws</strong> MessagingException {
+<a name="540" href="#540">540</a>
+<a name="541" href="#541">541</a> <em class="jxr_comment">// check that all init parameters have been declared in allowedInitParameters</em>
+<a name="542" href="#542">542</a> checkInitParameters(getAllowedInitParameters());
+<a name="543" href="#543">543</a>
+<a name="544" href="#544">544</a> <strong class="jxr_keyword">try</strong> {
+<a name="545" href="#545">545</a> initDebug();
+<a name="546" href="#546">546</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="547" href="#547">547</a> log(<span class="jxr_string">"Initializing"</span>);
+<a name="548" href="#548">548</a> }
+<a name="549" href="#549">549</a>
+<a name="550" href="#550">550</a> initHost();
+<a name="551" href="#551">551</a> initPort();
+<a name="552" href="#552">552</a> initMaxPings();
+<a name="553" href="#553">553</a> initPingIntervalMilli();
+<a name="554" href="#554">554</a> initStreamBufferSize();
+<a name="555" href="#555">555</a>
+<a name="556" href="#556">556</a> <em class="jxr_comment">// If "maxPings is > ping the CLAMD server to check if it is up</em>
+<a name="557" href="#557">557</a> <strong class="jxr_keyword">if</strong> (getMaxPings() > 0) {
+<a name="558" href="#558">558</a> ping();
+<a name="559" href="#559">559</a> }
+<a name="560" href="#560">560</a>
+<a name="561" href="#561">561</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
+<a name="562" href="#562">562</a> log(<span class="jxr_string">"Exception thrown"</span>, e);
+<a name="563" href="#563">563</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> MessagingException(<span class="jxr_string">"Exception thrown"</span>, e);
+<a name="564" href="#564">564</a> }
+<a name="565" href="#565">565</a>
+<a name="566" href="#566">566</a> }
+<a name="567" href="#567">567</a>
+<a name="568" href="#568">568</a> <em class="jxr_javadoccomment">/**</em>
+<a name="569" href="#569">569</a> <em class="jxr_javadoccomment"> * Scans the mail.</em>
+<a name="570" href="#570">570</a> <em class="jxr_javadoccomment"> *</em>
+<a name="571" href="#571">571</a> <em class="jxr_javadoccomment"> * @param mail the mail to scan</em>
+<a name="572" href="#572">572</a> <em class="jxr_javadoccomment"> * @throws MessagingException if a problem arises</em>
+<a name="573" href="#573">573</a> <em class="jxr_javadoccomment"> */</em>
+<a name="574" href="#574">574</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> service(Mail mail) <strong class="jxr_keyword">throws</strong> MessagingException {
+<a name="575" href="#575">575</a>
+<a name="576" href="#576">576</a> <em class="jxr_comment">// if already checked no action</em>
+<a name="577" href="#577">577</a> <strong class="jxr_keyword">if</strong> (mail.getAttribute(MAIL_ATTRIBUTE_NAME) != <strong class="jxr_keyword">null</strong>) {
+<a name="578" href="#578">578</a> <strong class="jxr_keyword">return</strong>;
+<a name="579" href="#579">579</a> }
+<a name="580" href="#580">580</a>
+<a name="581" href="#581">581</a> MimeMessage mimeMessage = mail.getMessage();
+<a name="582" href="#582">582</a>
+<a name="583" href="#583">583</a> <strong class="jxr_keyword">if</strong> (mimeMessage == <strong class="jxr_keyword">null</strong>) {
+<a name="584" href="#584">584</a> log(<span class="jxr_string">"Null MimeMessage. Will send to ghost"</span>);
+<a name="585" href="#585">585</a> <em class="jxr_comment">// write mail info to log</em>
+<a name="586" href="#586">586</a> logMailInfo(mail);
+<a name="587" href="#587">587</a> mail.setState(Mail.GHOST);
+<a name="588" href="#588">588</a> <strong class="jxr_keyword">return</strong>;
+<a name="589" href="#589">589</a> }
+<a name="590" href="#590">590</a>
+<a name="591" href="#591">591</a> <em class="jxr_comment">// get the socket</em>
+<a name="592" href="#592">592</a> Socket socket = getClamdSocket();
+<a name="593" href="#593">593</a> BufferedReader reader = <strong class="jxr_keyword">null</strong>;
+<a name="594" href="#594">594</a> PrintWriter writer = <strong class="jxr_keyword">null</strong>;
+<a name="595" href="#595">595</a> Socket streamSocket = <strong class="jxr_keyword">null</strong>;
+<a name="596" href="#596">596</a> BufferedOutputStream bos = <strong class="jxr_keyword">null</strong>;
+<a name="597" href="#597">597</a>
+<a name="598" href="#598">598</a> <strong class="jxr_keyword">try</strong> {
+<a name="599" href="#599">599</a>
+<a name="600" href="#600">600</a> <em class="jxr_comment">// prepare the reader and writer for the commands</em>
+<a name="601" href="#601">601</a> reader = <strong class="jxr_keyword">new</strong> BufferedReader(<strong class="jxr_keyword">new</strong> InputStreamReader(socket.getInputStream(), <span class="jxr_string">"ASCII"</span>));
+<a name="602" href="#602">602</a> writer = <strong class="jxr_keyword">new</strong> PrintWriter(<strong class="jxr_keyword">new</strong> BufferedWriter(<strong class="jxr_keyword">new</strong> OutputStreamWriter(socket.getOutputStream())), <strong class="jxr_keyword">true</strong>);
+<a name="603" href="#603">603</a>
+<a name="604" href="#604">604</a> <em class="jxr_comment">// write a request for a port to use for streaming out the data to scan</em>
+<a name="605" href="#605">605</a> writer.println(<span class="jxr_string">"STREAM"</span>);
+<a name="606" href="#606">606</a> writer.flush();
+<a name="607" href="#607">607</a>
+<a name="608" href="#608">608</a> <em class="jxr_comment">// parse and get the "stream" port#</em>
+<a name="609" href="#609">609</a> <strong class="jxr_keyword">int</strong> streamPort = getStreamPortFromAnswer(reader.readLine());
+<a name="610" href="#610">610</a>
+<a name="611" href="#611">611</a> <em class="jxr_comment">// get the "stream" socket and the related (buffered) output stream</em>
+<a name="612" href="#612">612</a> streamSocket = <strong class="jxr_keyword">new</strong> Socket(socket.getInetAddress(), streamPort);
+<a name="613" href="#613">613</a> bos = <strong class="jxr_keyword">new</strong> BufferedOutputStream(streamSocket.getOutputStream(), getStreamBufferSize());
+<a name="614" href="#614">614</a>
+<a name="615" href="#615">615</a> <em class="jxr_comment">// stream out the message to the scanner</em>
+<a name="616" href="#616">616</a> mimeMessage.writeTo(bos);
+<a name="617" href="#617">617</a> bos.flush();
+<a name="618" href="#618">618</a> bos.close();
+<a name="619" href="#619">619</a> streamSocket.close();
+<a name="620" href="#620">620</a>
+<a name="621" href="#621">621</a> String answer = <strong class="jxr_keyword">null</strong>;
+<a name="622" href="#622">622</a> <strong class="jxr_keyword">boolean</strong> virusFound = false;
+<a name="623" href="#623">623</a> String logMessage = <span class="jxr_string">""</span>;
+<a name="624" href="#624">624</a> <strong class="jxr_keyword">for</strong> (;;) {
+<a name="625" href="#625">625</a> answer = reader.readLine();
+<a name="626" href="#626">626</a> <strong class="jxr_keyword">if</strong> (answer != <strong class="jxr_keyword">null</strong>) {
+<a name="627" href="#627">627</a> answer = answer.trim();
+<a name="628" href="#628">628</a>
+<a name="629" href="#629">629</a> <em class="jxr_comment">// if a virus is found the answer will be '... FOUND'</em>
+<a name="630" href="#630">630</a> <strong class="jxr_keyword">if</strong> (answer.substring(answer.length() - FOUND_STRING.length()).equals(FOUND_STRING)) {
+<a name="631" href="#631">631</a> virusFound = <strong class="jxr_keyword">true</strong>;
+<a name="632" href="#632">632</a> logMessage = answer + <span class="jxr_string">" (by CLAMD on "</span> + socket.getInetAddress() + <span class="jxr_string">")"</span>;
+<a name="633" href="#633">633</a> log(logMessage);
+<a name="634" href="#634">634</a> }
+<a name="635" href="#635">635</a> } <strong class="jxr_keyword">else</strong> {
+<a name="636" href="#636">636</a> <strong class="jxr_keyword">break</strong>;
+<a name="637" href="#637">637</a> }
+<a name="638" href="#638">638</a> }
+<a name="639" href="#639">639</a>
+<a name="640" href="#640">640</a> reader.close();
+<a name="641" href="#641">641</a> writer.close();
+<a name="642" href="#642">642</a>
+<a name="643" href="#643">643</a> <strong class="jxr_keyword">if</strong> (virusFound) {
+<a name="644" href="#644">644</a> String errorMessage = mail.getErrorMessage();
+<a name="645" href="#645">645</a> <strong class="jxr_keyword">if</strong> (errorMessage == <strong class="jxr_keyword">null</strong>) {
+<a name="646" href="#646">646</a> errorMessage = <span class="jxr_string">""</span>;
+<a name="647" href="#647">647</a> } <strong class="jxr_keyword">else</strong> {
+<a name="648" href="#648">648</a> errorMessage += <span class="jxr_string">"\r\n"</span>;
+<a name="649" href="#649">649</a> }
+<a name="650" href="#650">650</a> StringBuffer sb = <strong class="jxr_keyword">new</strong> StringBuffer(errorMessage);
+<a name="651" href="#651">651</a> sb.append(logMessage + <span class="jxr_string">"\r\n"</span>);
+<a name="652" href="#652">652</a>
+<a name="653" href="#653">653</a> <em class="jxr_comment">// write mail and message info to log</em>
+<a name="654" href="#654">654</a> logMailInfo(mail);
+<a name="655" href="#655">655</a> logMessageInfo(mimeMessage);
+<a name="656" href="#656">656</a>
+<a name="657" href="#657">657</a> <em class="jxr_comment">// mark the mail with a mail attribute to check later on by other matchers/mailets</em>
+<a name="658" href="#658">658</a> mail.setAttribute(MAIL_ATTRIBUTE_NAME, <span class="jxr_string">"true"</span>);
+<a name="659" href="#659">659</a>
+<a name="660" href="#660">660</a> <em class="jxr_comment">// sets the error message to be shown in any "notifyXxx" message</em>
+<a name="661" href="#661">661</a> mail.setErrorMessage(sb.toString());
+<a name="662" href="#662">662</a>
+<a name="663" href="#663">663</a> <em class="jxr_comment">// mark the message with a header string</em>
+<a name="664" href="#664">664</a> mimeMessage.setHeader(HEADER_NAME, <span class="jxr_string">"true"</span>);
+<a name="665" href="#665">665</a>
+<a name="666" href="#666">666</a> } <strong class="jxr_keyword">else</strong> {
+<a name="667" href="#667">667</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="668" href="#668">668</a> log(<span class="jxr_string">"OK (by CLAMD on "</span> + socket.getInetAddress() + <span class="jxr_string">")"</span>);
+<a name="669" href="#669">669</a> }
+<a name="670" href="#670">670</a> mail.setAttribute(MAIL_ATTRIBUTE_NAME, <span class="jxr_string">"false"</span>);
+<a name="671" href="#671">671</a>
+<a name="672" href="#672">672</a> <em class="jxr_comment">// mark the message with a header string</em>
+<a name="673" href="#673">673</a> mimeMessage.setHeader(HEADER_NAME, <span class="jxr_string">"false"</span>);
+<a name="674" href="#674">674</a>
+<a name="675" href="#675">675</a> }
+<a name="676" href="#676">676</a>
+<a name="677" href="#677">677</a> <strong class="jxr_keyword">try</strong> {
+<a name="678" href="#678">678</a> saveChanges(mimeMessage);
+<a name="679" href="#679">679</a> } <strong class="jxr_keyword">catch</strong> (Exception ex) {
+<a name="680" href="#680">680</a> log(<span class="jxr_string">"Exception caught while saving changes (header) to the MimeMessage. Ignoring ..."</span>, ex);
+<a name="681" href="#681">681</a> }
+<a name="682" href="#682">682</a>
+<a name="683" href="#683">683</a> } <strong class="jxr_keyword">catch</strong> (Exception ex) {
+<a name="684" href="#684">684</a> log(<span class="jxr_string">"Exception caught calling CLAMD on "</span> + socket.getInetAddress() + <span class="jxr_string">": "</span> + ex.getMessage(), ex);
+<a name="685" href="#685">685</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> MessagingException(<span class="jxr_string">"Exception caught"</span>, ex);
+<a name="686" href="#686">686</a> } <strong class="jxr_keyword">finally</strong> {
+<a name="687" href="#687">687</a> shutdownReader(reader);
+<a name="688" href="#688">688</a> shutdownWriter(writer);
+<a name="689" href="#689">689</a> shutdownStream(bos);
+<a name="690" href="#690">690</a> shutdownSocket(streamSocket);
+<a name="691" href="#691">691</a> shutdownSocket(socket);
+<a name="692" href="#692">692</a> }
+<a name="693" href="#693">693</a>
+<a name="694" href="#694">694</a> }
+<a name="695" href="#695">695</a>
+<a name="696" href="#696">696</a> <em class="jxr_javadoccomment">/**</em>
+<a name="697" href="#697">697</a> <em class="jxr_javadoccomment"> * Unconditionally close an <code>OutputStream</code>.</em>
+<a name="698" href="#698">698</a> <em class="jxr_javadoccomment"> * Equivalent to {@link OutputStream#close()}, except any exceptions will be ignored.</em>
+<a name="699" href="#699">699</a> <em class="jxr_javadoccomment"> * @param output A (possibly null) OutputStream</em>
+<a name="700" href="#700">700</a> <em class="jxr_javadoccomment"> */</em>
+<a name="701" href="#701">701</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> shutdownStream( <strong class="jxr_keyword">final</strong> OutputStream output )
+<a name="702" href="#702">702</a> {
+<a name="703" href="#703">703</a> <strong class="jxr_keyword">if</strong>( <strong class="jxr_keyword">null</strong> == output )
+<a name="704" href="#704">704</a> {
+<a name="705" href="#705">705</a> <strong class="jxr_keyword">return</strong>;
+<a name="706" href="#706">706</a> }
+<a name="707" href="#707">707</a>
+<a name="708" href="#708">708</a> <strong class="jxr_keyword">try</strong>
+<a name="709" href="#709">709</a> {
+<a name="710" href="#710">710</a> output.close();
+<a name="711" href="#711">711</a> }
+<a name="712" href="#712">712</a> <strong class="jxr_keyword">catch</strong>( <strong class="jxr_keyword">final</strong> IOException ioe )
+<a name="713" href="#713">713</a> {
+<a name="714" href="#714">714</a> }
+<a name="715" href="#715">715</a> }
+<a name="716" href="#716">716</a>
+<a name="717" href="#717">717</a> <em class="jxr_javadoccomment">/**</em>
+<a name="718" href="#718">718</a> <em class="jxr_javadoccomment"> * Unconditionally close an <code>Socket</code>.</em>
+<a name="719" href="#719">719</a> <em class="jxr_javadoccomment"> * Equivalent to {@link Socket#close()}, except any exceptions will be ignored.</em>
+<a name="720" href="#720">720</a> <em class="jxr_javadoccomment"> * @param socket A (possibly null) Socket</em>
+<a name="721" href="#721">721</a> <em class="jxr_javadoccomment"> */</em>
+<a name="722" href="#722">722</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> shutdownSocket( <strong class="jxr_keyword">final</strong> Socket socket ) {
+<a name="723" href="#723">723</a> <strong class="jxr_keyword">if</strong>( <strong class="jxr_keyword">null</strong> == socket ) {
+<a name="724" href="#724">724</a> <strong class="jxr_keyword">return</strong>;
+<a name="725" href="#725">725</a> }
+<a name="726" href="#726">726</a>
+<a name="727" href="#727">727</a> <strong class="jxr_keyword">try</strong> {
+<a name="728" href="#728">728</a> socket.close();
+<a name="729" href="#729">729</a> } <strong class="jxr_keyword">catch</strong>( <strong class="jxr_keyword">final</strong> IOException ioe ){
+<a name="730" href="#730">730</a> }
+<a name="731" href="#731">731</a> }
+<a name="732" href="#732">732</a>
+<a name="733" href="#733">733</a> <em class="jxr_javadoccomment">/**</em>
+<a name="734" href="#734">734</a> <em class="jxr_javadoccomment"> * Unconditionally close an <code>Writer</code>.</em>
+<a name="735" href="#735">735</a> <em class="jxr_javadoccomment"> * Equivalent to {@link Writer#close()}, except any exceptions will be ignored.</em>
+<a name="736" href="#736">736</a> <em class="jxr_javadoccomment"> *</em>
+<a name="737" href="#737">737</a> <em class="jxr_javadoccomment"> * @param output A (possibly null) Writer</em>
+<a name="738" href="#738">738</a> <em class="jxr_javadoccomment"> */</em>
+<a name="739" href="#739">739</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> shutdownWriter( <strong class="jxr_keyword">final</strong> Writer output )
+<a name="740" href="#740">740</a> {
+<a name="741" href="#741">741</a> <strong class="jxr_keyword">if</strong>( <strong class="jxr_keyword">null</strong> == output )
+<a name="742" href="#742">742</a> {
+<a name="743" href="#743">743</a> <strong class="jxr_keyword">return</strong>;
+<a name="744" href="#744">744</a> }
+<a name="745" href="#745">745</a>
+<a name="746" href="#746">746</a> <strong class="jxr_keyword">try</strong>
+<a name="747" href="#747">747</a> {
+<a name="748" href="#748">748</a> output.close();
+<a name="749" href="#749">749</a> }
+<a name="750" href="#750">750</a> <strong class="jxr_keyword">catch</strong>( <strong class="jxr_keyword">final</strong> IOException ioe )
+<a name="751" href="#751">751</a> {
+<a name="752" href="#752">752</a> }
+<a name="753" href="#753">753</a> }
+<a name="754" href="#754">754</a>
+<a name="755" href="#755">755</a>
+<a name="756" href="#756">756</a> <em class="jxr_javadoccomment">/**</em>
+<a name="757" href="#757">757</a> <em class="jxr_javadoccomment"> * Unconditionally close an <code>Reader</code>.</em>
+<a name="758" href="#758">758</a> <em class="jxr_javadoccomment"> * Equivalent to {@link Reader#close()}, except any exceptions will be ignored.</em>
+<a name="759" href="#759">759</a> <em class="jxr_javadoccomment"> *</em>
+<a name="760" href="#760">760</a> <em class="jxr_javadoccomment"> * @param input A (possibly null) Reader</em>
+<a name="761" href="#761">761</a> <em class="jxr_javadoccomment"> */</em>
+<a name="762" href="#762">762</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> shutdownReader( <strong class="jxr_keyword">final</strong> Reader input )
+<a name="763" href="#763">763</a> {
+<a name="764" href="#764">764</a> <strong class="jxr_keyword">if</strong>( <strong class="jxr_keyword">null</strong> == input )
+<a name="765" href="#765">765</a> {
+<a name="766" href="#766">766</a> <strong class="jxr_keyword">return</strong>;
+<a name="767" href="#767">767</a> }
+<a name="768" href="#768">768</a>
+<a name="769" href="#769">769</a> <strong class="jxr_keyword">try</strong>
+<a name="770" href="#770">770</a> {
+<a name="771" href="#771">771</a> input.close();
+<a name="772" href="#772">772</a> }
+<a name="773" href="#773">773</a> <strong class="jxr_keyword">catch</strong>( <strong class="jxr_keyword">final</strong> IOException ioe )
+<a name="774" href="#774">774</a> {
+<a name="775" href="#775">775</a> }
+<a name="776" href="#776">776</a> }
+<a name="777" href="#777">777</a>
+<a name="778" href="#778">778</a> <em class="jxr_javadoccomment">/**</em>
+<a name="779" href="#779">779</a> <em class="jxr_javadoccomment"> * Tries to "ping" all the CLAMD daemons to</em>
+<a name="780" href="#780">780</a> <em class="jxr_javadoccomment"> * check if they are up and accepting requests.</em>
+<a name="781" href="#781">781</a> <em class="jxr_javadoccomment"> **/</em>
+<a name="782" href="#782">782</a>
+<a name="783" href="#783">783</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> ping() <strong class="jxr_keyword">throws</strong> Exception {
+<a name="784" href="#784">784</a>
+<a name="785" href="#785">785</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < getAddressesCount(); i++) {
+<a name="786" href="#786">786</a> ping(getAddresses(i));
+<a name="787" href="#787">787</a> }
+<a name="788" href="#788">788</a> }
+<a name="789" href="#789">789</a>
+<a name="790" href="#790">790</a> <em class="jxr_javadoccomment">/**</em>
+<a name="791" href="#791">791</a> <em class="jxr_javadoccomment"> * Tries (and retries as specified up to 'getMaxPings()') to "ping" the specified CLAMD daemon to</em>
+<a name="792" href="#792">792</a> <em class="jxr_javadoccomment"> * check if it is up and accepting requests.</em>
+<a name="793" href="#793">793</a> <em class="jxr_javadoccomment"> * @param address the address to "ping"</em>
+<a name="794" href="#794">794</a> <em class="jxr_javadoccomment"> */</em>
+<a name="795" href="#795">795</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> ping(InetAddress address) <strong class="jxr_keyword">throws</strong> Exception {
+<a name="796" href="#796">796</a> Socket socket = <strong class="jxr_keyword">null</strong>;
+<a name="797" href="#797">797</a>
+<a name="798" href="#798">798</a> <strong class="jxr_keyword">int</strong> ping = 1;
+<a name="799" href="#799">799</a> <strong class="jxr_keyword">for</strong> (; ; ) {
+<a name="800" href="#800">800</a> <strong class="jxr_keyword">if</strong> (isDebug()) {
+<a name="801" href="#801">801</a> log(<span class="jxr_string">"Trial #"</span> + ping + <span class="jxr_string">"/"</span> + getMaxPings() + <span class="jxr_string">" - creating socket connected to "</span> + address + <span class="jxr_string">" on port "</span> + getPort());
+<a name="802" href="#802">802</a> }
+<a name="803" href="#803">803</a> <strong class="jxr_keyword">try</strong> {
+<a name="804" href="#804">804</a> socket = <strong class="jxr_keyword">new</strong> Socket(address, getPort());
+<a name="805" href="#805">805</a> <strong class="jxr_keyword">break</strong>;
+<a name="806" href="#806">806</a> } <strong class="jxr_keyword">catch</strong> (ConnectException ce) {
+<a name="807" href="#807">807</a> log(<span class="jxr_string">"Trial #"</span> + ping + <span class="jxr_string">"/"</span> + getMaxPings() + <span class="jxr_string">" - exception caught: "</span> + ce.toString() + <span class="jxr_string">" while creating socket connected to "</span> + address + <span class="jxr_string">" on port "</span> + getPort());
+<a name="808" href="#808">808</a> ping++;
+<a name="809" href="#809">809</a> <strong class="jxr_keyword">if</strong> (ping <= getMaxPings()) {
+<a name="810" href="#810">810</a> log(<span class="jxr_string">"Waiting "</span> + getPingIntervalMilli() + <span class="jxr_string">" milliseconds before retrying ..."</span>);
+<a name="811" href="#811">811</a> Thread.sleep(getPingIntervalMilli());
+<a name="812" href="#812">812</a> } <strong class="jxr_keyword">else</strong> {
+<a name="813" href="#813">813</a> <strong class="jxr_keyword">break</strong>;
+<a name="814" href="#814">814</a> }
+<a name="815" href="#815">815</a> }
+<a name="816" href="#816">816</a> }
+<a name="817" href="#817">817</a>
+<a name="818" href="#818">818</a> <em class="jxr_comment">// if 'socket' is still null then 'maxPings' has been exceeded</em>
+<a name="819" href="#819">819</a> <strong class="jxr_keyword">if</strong> (socket == <strong class="jxr_keyword">null</strong>) {
+<a name="820" href="#820">820</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> ConnectException(<span class="jxr_string">"maxPings exceeded: "</span> + getMaxPings() + <span class="jxr_string">". Giving up. The clamd daemon seems not to be running"</span>);
+<a name="821" href="#821">821</a> }
+<a name="822" href="#822">822</a>
+<a name="823" href="#823">823</a> <strong class="jxr_keyword">try</strong> {
+<a name="824" href="#824">824</a> <em class="jxr_comment">// get the reader and writer to ping and receive pong</em>
+<a name="825" href="#825">825</a> BufferedReader reader = <strong class="jxr_keyword">new</strong> BufferedReader(<strong class="jxr_keyword">new</strong> InputStreamReader(socket.getInputStream(), <span class="jxr_string">"ASCII"</span>));
+<a name="826" href="#826">826</a> PrintWriter writer = <strong class="jxr_keyword">new</strong> PrintWriter(<strong class="jxr_keyword">new</strong> BufferedWriter(<strong class="jxr_keyword">new</strong> OutputStreamWriter(socket.getOutputStream())), <strong class="jxr_keyword">true</strong>);
+<a name="827" href="#827">827</a>
+<a name="828" href="#828">828</a> log(<span class="jxr_string">"Sending: \"PING\" to "</span> + address + <span class="jxr_string">" ..."</span>);
+<a name="829" href="#829">829</a> writer.println(<span class="jxr_string">"PING"</span>);
+<a name="830" href="#830">830</a> writer.flush();
+<a name="831" href="#831">831</a>
+<a name="832" href="#832">832</a> <strong class="jxr_keyword">boolean</strong> pongReceived = false;
+<a name="833" href="#833">833</a> <strong class="jxr_keyword">for</strong> (;;) {
+<a name="834" href="#834">834</a> String answer = reader.readLine();
+<a name="835" href="#835">835</a> <strong class="jxr_keyword">if</strong> (answer != <strong class="jxr_keyword">null</strong>) {
+<a name="836" href="#836">836</a> answer = answer.trim();
+<a name="837" href="#837">837</a> log(<span class="jxr_string">"Received: \""</span> + answer + <span class="jxr_string">"\""</span>);
+<a name="838" href="#838">838</a> answer = answer.trim();
+<a name="839" href="#839">839</a> <strong class="jxr_keyword">if</strong> (answer.equals(<span class="jxr_string">"PONG"</span>)) {
+<a name="840" href="#840">840</a> pongReceived = <strong class="jxr_keyword">true</strong>;
+<a name="841" href="#841">841</a> }
+<a name="842" href="#842">842</a>
+<a name="843" href="#843">843</a> } <strong class="jxr_keyword">else</strong> {
+<a name="844" href="#844">844</a> <strong class="jxr_keyword">break</strong>;
+<a name="845" href="#845">845</a> }
+<a name="846" href="#846">846</a> }
+<a name="847" href="#847">847</a>
+<a name="848" href="#848">848</a> reader.close();
+<a name="849" href="#849">849</a> writer.close();
+<a name="850" href="#850">850</a>
+<a name="851" href="#851">851</a> <strong class="jxr_keyword">if</strong> (!pongReceived) {
+<a name="852" href="#852">852</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> ConnectException(<span class="jxr_string">"Bad answer from \"PING\" probe: expecting \"PONG\""</span>);
+<a name="853" href="#853">853</a> }
+<a name="854" href="#854">854</a> } <strong class="jxr_keyword">finally</strong> {
+<a name="855" href="#855">855</a> socket.close();
+<a name="856" href="#856">856</a> }
+<a name="857" href="#857">857</a> }
+<a name="858" href="#858">858</a>
+<a name="859" href="#859">859</a> <em class="jxr_javadoccomment">/**</em>
+<a name="860" href="#860">860</a> <em class="jxr_javadoccomment"> * Parses the answer from a STREAM request and gets the port number.</em>
+<a name="861" href="#861">861</a> <em class="jxr_javadoccomment"> *</em>
+<a name="862" href="#862">862</a> <em class="jxr_javadoccomment"> * @param answer the answer from CLAMD containing the port number</em>
+<a name="863" href="#863">863</a> <em class="jxr_javadoccomment"> * @return the port number for streaming out the data to scan</em>
+<a name="864" href="#864">864</a> <em class="jxr_javadoccomment"> */</em>
+<a name="865" href="#865">865</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getStreamPortFromAnswer(String answer) <strong class="jxr_keyword">throws</strong> ConnectException {
+<a name="866" href="#866">866</a> <strong class="jxr_keyword">int</strong> port = -1;
+<a name="867" href="#867">867</a> <strong class="jxr_keyword">if</strong> (answer != <strong class="jxr_keyword">null</strong> && answer.startsWith(STREAM_PORT_STRING)) {
+<a name="868" href="#868">868</a> <strong class="jxr_keyword">try</strong> {
+<a name="869" href="#869">869</a> port = Integer.parseInt(answer.substring(STREAM_PORT_STRING.length()));
+<a name="870" href="#870">870</a> } <strong class="jxr_keyword">catch</strong> (NumberFormatException nfe) {
+<a name="871" href="#871">871</a>
+<a name="872" href="#872">872</a> }
+<a name="873" href="#873">873</a> }
+<a name="874" href="#874">874</a>
[... 96 lines stripped ...]