Google Git
Sign in
apache / archiva-web-content / 7c2ce1786c818e0e567e48c56f17c69702f385b0 / . / ref / 1.4-M4 / apidocs / src-html / org / apache / archiva / checksum / ChecksummedFile.html
blob: 8411325fa125d5d1d2aacd764b183293076cb2f5 [file] [log] [blame]
<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT> package org.apache.archiva.checksum;<a name="line.1"></a>
<FONT color="green">002</FONT> <a name="line.2"></a>
<FONT color="green">003</FONT> /*<a name="line.3"></a>
<FONT color="green">004</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a>
<FONT color="green">005</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a>
<FONT color="green">006</FONT> * distributed with this work for additional information<a name="line.6"></a>
<FONT color="green">007</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a>
<FONT color="green">008</FONT> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a>
<FONT color="green">009</FONT> * "License"); you may not use this file except in compliance<a name="line.9"></a>
<FONT color="green">010</FONT> * with the License. You may obtain a copy of the License at<a name="line.10"></a>
<FONT color="green">011</FONT> *<a name="line.11"></a>
<FONT color="green">012</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a>
<FONT color="green">013</FONT> *<a name="line.13"></a>
<FONT color="green">014</FONT> * Unless required by applicable law or agreed to in writing,<a name="line.14"></a>
<FONT color="green">015</FONT> * software distributed under the License is distributed on an<a name="line.15"></a>
<FONT color="green">016</FONT> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.16"></a>
<FONT color="green">017</FONT> * KIND, either express or implied. See the License for the<a name="line.17"></a>
<FONT color="green">018</FONT> * specific language governing permissions and limitations<a name="line.18"></a>
<FONT color="green">019</FONT> * under the License.<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> import org.apache.commons.io.FileUtils;<a name="line.22"></a>
<FONT color="green">023</FONT> import org.apache.commons.io.IOUtils;<a name="line.23"></a>
<FONT color="green">024</FONT> import org.apache.commons.lang.StringUtils;<a name="line.24"></a>
<FONT color="green">025</FONT> import org.slf4j.Logger;<a name="line.25"></a>
<FONT color="green">026</FONT> import org.slf4j.LoggerFactory;<a name="line.26"></a>
<FONT color="green">027</FONT> <a name="line.27"></a>
<FONT color="green">028</FONT> import java.io.File;<a name="line.28"></a>
<FONT color="green">029</FONT> import java.io.FileInputStream;<a name="line.29"></a>
<FONT color="green">030</FONT> import java.io.IOException;<a name="line.30"></a>
<FONT color="green">031</FONT> import java.util.ArrayList;<a name="line.31"></a>
<FONT color="green">032</FONT> import java.util.List;<a name="line.32"></a>
<FONT color="green">033</FONT> import java.util.regex.Matcher;<a name="line.33"></a>
<FONT color="green">034</FONT> import java.util.regex.Pattern;<a name="line.34"></a>
<FONT color="green">035</FONT> <a name="line.35"></a>
<FONT color="green">036</FONT> /**<a name="line.36"></a>
<FONT color="green">037</FONT> * ChecksummedFile<a name="line.37"></a>
<FONT color="green">038</FONT> * &lt;p/&gt;<a name="line.38"></a>
<FONT color="green">039</FONT> * &lt;dl&gt;<a name="line.39"></a>
<FONT color="green">040</FONT> * &lt;lh&gt;Terminology:&lt;/lh&gt;<a name="line.40"></a>
<FONT color="green">041</FONT> * &lt;dt&gt;Checksum File&lt;/dt&gt;<a name="line.41"></a>
<FONT color="green">042</FONT> * &lt;dd&gt;The file that contains the previously calculated checksum value for the reference file.<a name="line.42"></a>
<FONT color="green">043</FONT> * This is a text file with the extension ".sha1" or ".md5", and contains a single entry<a name="line.43"></a>
<FONT color="green">044</FONT> * consisting of an optional reference filename, and a checksum string.<a name="line.44"></a>
<FONT color="green">045</FONT> * &lt;/dd&gt;<a name="line.45"></a>
<FONT color="green">046</FONT> * &lt;dt&gt;Reference File&lt;/dt&gt;<a name="line.46"></a>
<FONT color="green">047</FONT> * &lt;dd&gt;The file that is being referenced in the checksum file.&lt;/dd&gt;<a name="line.47"></a>
<FONT color="green">048</FONT> * &lt;/dl&gt;<a name="line.48"></a>
<FONT color="green">049</FONT> *<a name="line.49"></a>
<FONT color="green">050</FONT> *<a name="line.50"></a>
<FONT color="green">051</FONT> */<a name="line.51"></a>
<FONT color="green">052</FONT> public class ChecksummedFile<a name="line.52"></a>
<FONT color="green">053</FONT> {<a name="line.53"></a>
<FONT color="green">054</FONT> private Logger log = LoggerFactory.getLogger( ChecksummedFile.class );<a name="line.54"></a>
<FONT color="green">055</FONT> <a name="line.55"></a>
<FONT color="green">056</FONT> private final File referenceFile;<a name="line.56"></a>
<FONT color="green">057</FONT> <a name="line.57"></a>
<FONT color="green">058</FONT> /**<a name="line.58"></a>
<FONT color="green">059</FONT> * Construct a ChecksummedFile object.<a name="line.59"></a>
<FONT color="green">060</FONT> *<a name="line.60"></a>
<FONT color="green">061</FONT> * @param referenceFile<a name="line.61"></a>
<FONT color="green">062</FONT> */<a name="line.62"></a>
<FONT color="green">063</FONT> public ChecksummedFile( final File referenceFile )<a name="line.63"></a>
<FONT color="green">064</FONT> {<a name="line.64"></a>
<FONT color="green">065</FONT> this.referenceFile = referenceFile;<a name="line.65"></a>
<FONT color="green">066</FONT> }<a name="line.66"></a>
<FONT color="green">067</FONT> <a name="line.67"></a>
<FONT color="green">068</FONT> /**<a name="line.68"></a>
<FONT color="green">069</FONT> * Calculate the checksum based on a given checksum.<a name="line.69"></a>
<FONT color="green">070</FONT> *<a name="line.70"></a>
<FONT color="green">071</FONT> * @param checksumAlgorithm the algorithm to use.<a name="line.71"></a>
<FONT color="green">072</FONT> * @return the checksum string for the file.<a name="line.72"></a>
<FONT color="green">073</FONT> * @throws IOException if unable to calculate the checksum.<a name="line.73"></a>
<FONT color="green">074</FONT> */<a name="line.74"></a>
<FONT color="green">075</FONT> public String calculateChecksum( ChecksumAlgorithm checksumAlgorithm )<a name="line.75"></a>
<FONT color="green">076</FONT> throws IOException<a name="line.76"></a>
<FONT color="green">077</FONT> {<a name="line.77"></a>
<FONT color="green">078</FONT> FileInputStream fis = null;<a name="line.78"></a>
<FONT color="green">079</FONT> try<a name="line.79"></a>
<FONT color="green">080</FONT> {<a name="line.80"></a>
<FONT color="green">081</FONT> Checksum checksum = new Checksum( checksumAlgorithm );<a name="line.81"></a>
<FONT color="green">082</FONT> fis = new FileInputStream( referenceFile );<a name="line.82"></a>
<FONT color="green">083</FONT> checksum.update( fis );<a name="line.83"></a>
<FONT color="green">084</FONT> return checksum.getChecksum();<a name="line.84"></a>
<FONT color="green">085</FONT> }<a name="line.85"></a>
<FONT color="green">086</FONT> finally<a name="line.86"></a>
<FONT color="green">087</FONT> {<a name="line.87"></a>
<FONT color="green">088</FONT> IOUtils.closeQuietly( fis );<a name="line.88"></a>
<FONT color="green">089</FONT> }<a name="line.89"></a>
<FONT color="green">090</FONT> }<a name="line.90"></a>
<FONT color="green">091</FONT> <a name="line.91"></a>
<FONT color="green">092</FONT> /**<a name="line.92"></a>
<FONT color="green">093</FONT> * Creates a checksum file of the provided referenceFile.<a name="line.93"></a>
<FONT color="green">094</FONT> *<a name="line.94"></a>
<FONT color="green">095</FONT> * @param checksumAlgorithm the hash to use.<a name="line.95"></a>
<FONT color="green">096</FONT> * @return the checksum File that was created.<a name="line.96"></a>
<FONT color="green">097</FONT> * @throws IOException if there was a problem either reading the referenceFile, or writing the checksum file.<a name="line.97"></a>
<FONT color="green">098</FONT> */<a name="line.98"></a>
<FONT color="green">099</FONT> public File createChecksum( ChecksumAlgorithm checksumAlgorithm )<a name="line.99"></a>
<FONT color="green">100</FONT> throws IOException<a name="line.100"></a>
<FONT color="green">101</FONT> {<a name="line.101"></a>
<FONT color="green">102</FONT> File checksumFile = new File( referenceFile.getAbsolutePath() + "." + checksumAlgorithm.getExt() );<a name="line.102"></a>
<FONT color="green">103</FONT> String checksum = calculateChecksum( checksumAlgorithm );<a name="line.103"></a>
<FONT color="green">104</FONT> FileUtils.writeStringToFile( checksumFile, checksum + " " + referenceFile.getName() );<a name="line.104"></a>
<FONT color="green">105</FONT> return checksumFile;<a name="line.105"></a>
<FONT color="green">106</FONT> }<a name="line.106"></a>
<FONT color="green">107</FONT> <a name="line.107"></a>
<FONT color="green">108</FONT> /**<a name="line.108"></a>
<FONT color="green">109</FONT> * Get the checksum file for the reference file and hash.<a name="line.109"></a>
<FONT color="green">110</FONT> *<a name="line.110"></a>
<FONT color="green">111</FONT> * @param checksumAlgorithm the hash that we are interested in.<a name="line.111"></a>
<FONT color="green">112</FONT> * @return the checksum file to return<a name="line.112"></a>
<FONT color="green">113</FONT> */<a name="line.113"></a>
<FONT color="green">114</FONT> public File getChecksumFile( ChecksumAlgorithm checksumAlgorithm )<a name="line.114"></a>
<FONT color="green">115</FONT> {<a name="line.115"></a>
<FONT color="green">116</FONT> return new File( referenceFile.getAbsolutePath() + "." + checksumAlgorithm.getExt() );<a name="line.116"></a>
<FONT color="green">117</FONT> }<a name="line.117"></a>
<FONT color="green">118</FONT> <a name="line.118"></a>
<FONT color="green">119</FONT> /**<a name="line.119"></a>
<FONT color="green">120</FONT> * &lt;p&gt;<a name="line.120"></a>
<FONT color="green">121</FONT> * Given a checksum file, check to see if the file it represents is valid according to the checksum.<a name="line.121"></a>
<FONT color="green">122</FONT> * &lt;/p&gt;<a name="line.122"></a>
<FONT color="green">123</FONT> * &lt;p/&gt;<a name="line.123"></a>
<FONT color="green">124</FONT> * &lt;p&gt;<a name="line.124"></a>
<FONT color="green">125</FONT> * NOTE: Only supports single file checksums of type MD5 or SHA1.<a name="line.125"></a>
<FONT color="green">126</FONT> * &lt;/p&gt;<a name="line.126"></a>
<FONT color="green">127</FONT> *<a name="line.127"></a>
<FONT color="green">128</FONT> * @param checksumFile the algorithms to check for.<a name="line.128"></a>
<FONT color="green">129</FONT> * @return true if the checksum is valid for the file it represents. or if the checksum file does not exist.<a name="line.129"></a>
<FONT color="green">130</FONT> * @throws IOException if the reading of the checksumFile or the file it refers to fails.<a name="line.130"></a>
<FONT color="green">131</FONT> */<a name="line.131"></a>
<FONT color="green">132</FONT> public boolean isValidChecksum( ChecksumAlgorithm algorithm )<a name="line.132"></a>
<FONT color="green">133</FONT> throws IOException<a name="line.133"></a>
<FONT color="green">134</FONT> {<a name="line.134"></a>
<FONT color="green">135</FONT> return isValidChecksums( new ChecksumAlgorithm[]{ algorithm } );<a name="line.135"></a>
<FONT color="green">136</FONT> }<a name="line.136"></a>
<FONT color="green">137</FONT> <a name="line.137"></a>
<FONT color="green">138</FONT> /**<a name="line.138"></a>
<FONT color="green">139</FONT> * Of any checksum files present, validate that the reference file conforms<a name="line.139"></a>
<FONT color="green">140</FONT> * the to the checksum.<a name="line.140"></a>
<FONT color="green">141</FONT> *<a name="line.141"></a>
<FONT color="green">142</FONT> * @param algorithms the algorithms to check for.<a name="line.142"></a>
<FONT color="green">143</FONT> * @return true if the checksums report that the the reference file is valid, false if invalid.<a name="line.143"></a>
<FONT color="green">144</FONT> */<a name="line.144"></a>
<FONT color="green">145</FONT> public boolean isValidChecksums( ChecksumAlgorithm algorithms[] )<a name="line.145"></a>
<FONT color="green">146</FONT> {<a name="line.146"></a>
<FONT color="green">147</FONT> FileInputStream fis = null;<a name="line.147"></a>
<FONT color="green">148</FONT> try<a name="line.148"></a>
<FONT color="green">149</FONT> {<a name="line.149"></a>
<FONT color="green">150</FONT> List&lt;Checksum&gt; checksums = new ArrayList&lt;Checksum&gt;( algorithms.length );<a name="line.150"></a>
<FONT color="green">151</FONT> // Create checksum object for each algorithm.<a name="line.151"></a>
<FONT color="green">152</FONT> for ( ChecksumAlgorithm checksumAlgorithm : algorithms )<a name="line.152"></a>
<FONT color="green">153</FONT> {<a name="line.153"></a>
<FONT color="green">154</FONT> File checksumFile = getChecksumFile( checksumAlgorithm );<a name="line.154"></a>
<FONT color="green">155</FONT> <a name="line.155"></a>
<FONT color="green">156</FONT> // Only add algorithm if checksum file exists.<a name="line.156"></a>
<FONT color="green">157</FONT> if ( checksumFile.exists() )<a name="line.157"></a>
<FONT color="green">158</FONT> {<a name="line.158"></a>
<FONT color="green">159</FONT> checksums.add( new Checksum( checksumAlgorithm ) );<a name="line.159"></a>
<FONT color="green">160</FONT> }<a name="line.160"></a>
<FONT color="green">161</FONT> }<a name="line.161"></a>
<FONT color="green">162</FONT> <a name="line.162"></a>
<FONT color="green">163</FONT> // Any checksums?<a name="line.163"></a>
<FONT color="green">164</FONT> if ( checksums.isEmpty() )<a name="line.164"></a>
<FONT color="green">165</FONT> {<a name="line.165"></a>
<FONT color="green">166</FONT> // No checksum objects, no checksum files, default to is invalid.<a name="line.166"></a>
<FONT color="green">167</FONT> return false;<a name="line.167"></a>
<FONT color="green">168</FONT> }<a name="line.168"></a>
<FONT color="green">169</FONT> <a name="line.169"></a>
<FONT color="green">170</FONT> // Parse file once, for all checksums.<a name="line.170"></a>
<FONT color="green">171</FONT> try<a name="line.171"></a>
<FONT color="green">172</FONT> {<a name="line.172"></a>
<FONT color="green">173</FONT> fis = new FileInputStream( referenceFile );<a name="line.173"></a>
<FONT color="green">174</FONT> Checksum.update( checksums, fis );<a name="line.174"></a>
<FONT color="green">175</FONT> }<a name="line.175"></a>
<FONT color="green">176</FONT> catch ( IOException e )<a name="line.176"></a>
<FONT color="green">177</FONT> {<a name="line.177"></a>
<FONT color="green">178</FONT> log.warn( "Unable to update checksum:" + e.getMessage() );<a name="line.178"></a>
<FONT color="green">179</FONT> return false;<a name="line.179"></a>
<FONT color="green">180</FONT> }<a name="line.180"></a>
<FONT color="green">181</FONT> <a name="line.181"></a>
<FONT color="green">182</FONT> boolean valid = true;<a name="line.182"></a>
<FONT color="green">183</FONT> <a name="line.183"></a>
<FONT color="green">184</FONT> // check the checksum files<a name="line.184"></a>
<FONT color="green">185</FONT> try<a name="line.185"></a>
<FONT color="green">186</FONT> {<a name="line.186"></a>
<FONT color="green">187</FONT> for ( Checksum checksum : checksums )<a name="line.187"></a>
<FONT color="green">188</FONT> {<a name="line.188"></a>
<FONT color="green">189</FONT> ChecksumAlgorithm checksumAlgorithm = checksum.getAlgorithm();<a name="line.189"></a>
<FONT color="green">190</FONT> File checksumFile = getChecksumFile( checksumAlgorithm );<a name="line.190"></a>
<FONT color="green">191</FONT> <a name="line.191"></a>
<FONT color="green">192</FONT> String rawChecksum = FileUtils.readFileToString( checksumFile );<a name="line.192"></a>
<FONT color="green">193</FONT> String expectedChecksum = parseChecksum( rawChecksum, checksumAlgorithm, referenceFile.getName() );<a name="line.193"></a>
<FONT color="green">194</FONT> <a name="line.194"></a>
<FONT color="green">195</FONT> if ( !StringUtils.equalsIgnoreCase( expectedChecksum, checksum.getChecksum() ) )<a name="line.195"></a>
<FONT color="green">196</FONT> {<a name="line.196"></a>
<FONT color="green">197</FONT> valid = false;<a name="line.197"></a>
<FONT color="green">198</FONT> }<a name="line.198"></a>
<FONT color="green">199</FONT> }<a name="line.199"></a>
<FONT color="green">200</FONT> }<a name="line.200"></a>
<FONT color="green">201</FONT> catch ( IOException e )<a name="line.201"></a>
<FONT color="green">202</FONT> {<a name="line.202"></a>
<FONT color="green">203</FONT> log.warn( "Unable to read / parse checksum: " + e.getMessage() );<a name="line.203"></a>
<FONT color="green">204</FONT> return false;<a name="line.204"></a>
<FONT color="green">205</FONT> }<a name="line.205"></a>
<FONT color="green">206</FONT> <a name="line.206"></a>
<FONT color="green">207</FONT> return valid;<a name="line.207"></a>
<FONT color="green">208</FONT> }<a name="line.208"></a>
<FONT color="green">209</FONT> finally<a name="line.209"></a>
<FONT color="green">210</FONT> {<a name="line.210"></a>
<FONT color="green">211</FONT> IOUtils.closeQuietly( fis );<a name="line.211"></a>
<FONT color="green">212</FONT> }<a name="line.212"></a>
<FONT color="green">213</FONT> }<a name="line.213"></a>
<FONT color="green">214</FONT> <a name="line.214"></a>
<FONT color="green">215</FONT> /**<a name="line.215"></a>
<FONT color="green">216</FONT> * Fix or create checksum files for the reference file.<a name="line.216"></a>
<FONT color="green">217</FONT> *<a name="line.217"></a>
<FONT color="green">218</FONT> * @param algorithms the hashes to check for.<a name="line.218"></a>
<FONT color="green">219</FONT> * @return true if checksums were created successfully.<a name="line.219"></a>
<FONT color="green">220</FONT> */<a name="line.220"></a>
<FONT color="green">221</FONT> public boolean fixChecksums( ChecksumAlgorithm[] algorithms )<a name="line.221"></a>
<FONT color="green">222</FONT> {<a name="line.222"></a>
<FONT color="green">223</FONT> List&lt;Checksum&gt; checksums = new ArrayList&lt;Checksum&gt;( algorithms.length );<a name="line.223"></a>
<FONT color="green">224</FONT> // Create checksum object for each algorithm.<a name="line.224"></a>
<FONT color="green">225</FONT> for ( ChecksumAlgorithm checksumAlgorithm : algorithms )<a name="line.225"></a>
<FONT color="green">226</FONT> {<a name="line.226"></a>
<FONT color="green">227</FONT> checksums.add( new Checksum( checksumAlgorithm ) );<a name="line.227"></a>
<FONT color="green">228</FONT> }<a name="line.228"></a>
<FONT color="green">229</FONT> <a name="line.229"></a>
<FONT color="green">230</FONT> // Any checksums?<a name="line.230"></a>
<FONT color="green">231</FONT> if ( checksums.isEmpty() )<a name="line.231"></a>
<FONT color="green">232</FONT> {<a name="line.232"></a>
<FONT color="green">233</FONT> // No checksum objects, no checksum files, default to is valid.<a name="line.233"></a>
<FONT color="green">234</FONT> return true;<a name="line.234"></a>
<FONT color="green">235</FONT> }<a name="line.235"></a>
<FONT color="green">236</FONT> <a name="line.236"></a>
<FONT color="green">237</FONT> FileInputStream fis = null;<a name="line.237"></a>
<FONT color="green">238</FONT> try<a name="line.238"></a>
<FONT color="green">239</FONT> {<a name="line.239"></a>
<FONT color="green">240</FONT> // Parse file once, for all checksums.<a name="line.240"></a>
<FONT color="green">241</FONT> fis = new FileInputStream( referenceFile );<a name="line.241"></a>
<FONT color="green">242</FONT> Checksum.update( checksums, fis );<a name="line.242"></a>
<FONT color="green">243</FONT> }<a name="line.243"></a>
<FONT color="green">244</FONT> catch ( IOException e )<a name="line.244"></a>
<FONT color="green">245</FONT> {<a name="line.245"></a>
<FONT color="green">246</FONT> log.warn( e.getMessage(), e );<a name="line.246"></a>
<FONT color="green">247</FONT> return false;<a name="line.247"></a>
<FONT color="green">248</FONT> }<a name="line.248"></a>
<FONT color="green">249</FONT> finally<a name="line.249"></a>
<FONT color="green">250</FONT> {<a name="line.250"></a>
<FONT color="green">251</FONT> IOUtils.closeQuietly( fis );<a name="line.251"></a>
<FONT color="green">252</FONT> }<a name="line.252"></a>
<FONT color="green">253</FONT> <a name="line.253"></a>
<FONT color="green">254</FONT> boolean valid = true;<a name="line.254"></a>
<FONT color="green">255</FONT> <a name="line.255"></a>
<FONT color="green">256</FONT> // check the hash files<a name="line.256"></a>
<FONT color="green">257</FONT> for ( Checksum checksum : checksums )<a name="line.257"></a>
<FONT color="green">258</FONT> {<a name="line.258"></a>
<FONT color="green">259</FONT> ChecksumAlgorithm checksumAlgorithm = checksum.getAlgorithm();<a name="line.259"></a>
<FONT color="green">260</FONT> try<a name="line.260"></a>
<FONT color="green">261</FONT> {<a name="line.261"></a>
<FONT color="green">262</FONT> File checksumFile = getChecksumFile( checksumAlgorithm );<a name="line.262"></a>
<FONT color="green">263</FONT> String actualChecksum = checksum.getChecksum();<a name="line.263"></a>
<FONT color="green">264</FONT> <a name="line.264"></a>
<FONT color="green">265</FONT> if ( checksumFile.exists() )<a name="line.265"></a>
<FONT color="green">266</FONT> {<a name="line.266"></a>
<FONT color="green">267</FONT> String rawChecksum = FileUtils.readFileToString( checksumFile );<a name="line.267"></a>
<FONT color="green">268</FONT> String expectedChecksum = parseChecksum( rawChecksum, checksumAlgorithm, referenceFile.getName() );<a name="line.268"></a>
<FONT color="green">269</FONT> <a name="line.269"></a>
<FONT color="green">270</FONT> if ( !StringUtils.equalsIgnoreCase( expectedChecksum, actualChecksum ) )<a name="line.270"></a>
<FONT color="green">271</FONT> {<a name="line.271"></a>
<FONT color="green">272</FONT> // create checksum (again)<a name="line.272"></a>
<FONT color="green">273</FONT> FileUtils.writeStringToFile( checksumFile, actualChecksum + " " + referenceFile.getName() );<a name="line.273"></a>
<FONT color="green">274</FONT> }<a name="line.274"></a>
<FONT color="green">275</FONT> }<a name="line.275"></a>
<FONT color="green">276</FONT> else<a name="line.276"></a>
<FONT color="green">277</FONT> {<a name="line.277"></a>
<FONT color="green">278</FONT> FileUtils.writeStringToFile( checksumFile, actualChecksum + " " + referenceFile.getName() );<a name="line.278"></a>
<FONT color="green">279</FONT> }<a name="line.279"></a>
<FONT color="green">280</FONT> }<a name="line.280"></a>
<FONT color="green">281</FONT> catch ( IOException e )<a name="line.281"></a>
<FONT color="green">282</FONT> {<a name="line.282"></a>
<FONT color="green">283</FONT> log.warn( e.getMessage(), e );<a name="line.283"></a>
<FONT color="green">284</FONT> valid = false;<a name="line.284"></a>
<FONT color="green">285</FONT> }<a name="line.285"></a>
<FONT color="green">286</FONT> }<a name="line.286"></a>
<FONT color="green">287</FONT> <a name="line.287"></a>
<FONT color="green">288</FONT> return valid;<a name="line.288"></a>
<FONT color="green">289</FONT> <a name="line.289"></a>
<FONT color="green">290</FONT> }<a name="line.290"></a>
<FONT color="green">291</FONT> <a name="line.291"></a>
<FONT color="green">292</FONT> private boolean isValidChecksumPattern( String filename, String path )<a name="line.292"></a>
<FONT color="green">293</FONT> {<a name="line.293"></a>
<FONT color="green">294</FONT> // check if it is a remote metadata file<a name="line.294"></a>
<FONT color="green">295</FONT> Pattern pattern = Pattern.compile( "maven-metadata-\\S*.xml" );<a name="line.295"></a>
<FONT color="green">296</FONT> Matcher m = pattern.matcher( path );<a name="line.296"></a>
<FONT color="green">297</FONT> if ( m.matches() )<a name="line.297"></a>
<FONT color="green">298</FONT> {<a name="line.298"></a>
<FONT color="green">299</FONT> return filename.endsWith( path ) || ( "-".equals( filename ) ) || filename.endsWith( "maven-metadata.xml" );<a name="line.299"></a>
<FONT color="green">300</FONT> }<a name="line.300"></a>
<FONT color="green">301</FONT> <a name="line.301"></a>
<FONT color="green">302</FONT> return filename.endsWith( path ) || ( "-".equals( filename ) );<a name="line.302"></a>
<FONT color="green">303</FONT> }<a name="line.303"></a>
<FONT color="green">304</FONT> <a name="line.304"></a>
<FONT color="green">305</FONT> /**<a name="line.305"></a>
<FONT color="green">306</FONT> * Parse a checksum string.<a name="line.306"></a>
<FONT color="green">307</FONT> * &lt;p/&gt;<a name="line.307"></a>
<FONT color="green">308</FONT> * Validate the expected path, and expected checksum algorithm, then return<a name="line.308"></a>
<FONT color="green">309</FONT> * the trimmed checksum hex string.<a name="line.309"></a>
<FONT color="green">310</FONT> *<a name="line.310"></a>
<FONT color="green">311</FONT> * @param rawChecksumString<a name="line.311"></a>
<FONT color="green">312</FONT> * @param expectedHash<a name="line.312"></a>
<FONT color="green">313</FONT> * @param expectedPath<a name="line.313"></a>
<FONT color="green">314</FONT> * @return<a name="line.314"></a>
<FONT color="green">315</FONT> * @throws IOException<a name="line.315"></a>
<FONT color="green">316</FONT> */<a name="line.316"></a>
<FONT color="green">317</FONT> public String parseChecksum( String rawChecksumString, ChecksumAlgorithm expectedHash, String expectedPath )<a name="line.317"></a>
<FONT color="green">318</FONT> throws IOException<a name="line.318"></a>
<FONT color="green">319</FONT> {<a name="line.319"></a>
<FONT color="green">320</FONT> String trimmedChecksum = rawChecksumString.replace( '\n', ' ' ).trim();<a name="line.320"></a>
<FONT color="green">321</FONT> <a name="line.321"></a>
<FONT color="green">322</FONT> // Free-BSD / openssl<a name="line.322"></a>
<FONT color="green">323</FONT> String regex = expectedHash.getType() + "\\s*\\(([^)]*)\\)\\s*=\\s*([a-fA-F0-9]+)";<a name="line.323"></a>
<FONT color="green">324</FONT> Matcher m = Pattern.compile( regex ).matcher( trimmedChecksum );<a name="line.324"></a>
<FONT color="green">325</FONT> if ( m.matches() )<a name="line.325"></a>
<FONT color="green">326</FONT> {<a name="line.326"></a>
<FONT color="green">327</FONT> String filename = m.group( 1 );<a name="line.327"></a>
<FONT color="green">328</FONT> if ( !isValidChecksumPattern( filename, expectedPath ) )<a name="line.328"></a>
<FONT color="green">329</FONT> {<a name="line.329"></a>
<FONT color="green">330</FONT> throw new IOException(<a name="line.330"></a>
<FONT color="green">331</FONT> "Supplied checksum file '" + filename + "' does not match expected file: '" + expectedPath + "'" );<a name="line.331"></a>
<FONT color="green">332</FONT> }<a name="line.332"></a>
<FONT color="green">333</FONT> trimmedChecksum = m.group( 2 );<a name="line.333"></a>
<FONT color="green">334</FONT> }<a name="line.334"></a>
<FONT color="green">335</FONT> else<a name="line.335"></a>
<FONT color="green">336</FONT> {<a name="line.336"></a>
<FONT color="green">337</FONT> // GNU tools<a name="line.337"></a>
<FONT color="green">338</FONT> m = Pattern.compile( "([a-fA-F0-9]+)\\s+\\*?(.+)" ).matcher( trimmedChecksum );<a name="line.338"></a>
<FONT color="green">339</FONT> if ( m.matches() )<a name="line.339"></a>
<FONT color="green">340</FONT> {<a name="line.340"></a>
<FONT color="green">341</FONT> String filename = m.group( 2 );<a name="line.341"></a>
<FONT color="green">342</FONT> if ( !isValidChecksumPattern( filename, expectedPath ) )<a name="line.342"></a>
<FONT color="green">343</FONT> {<a name="line.343"></a>
<FONT color="green">344</FONT> throw new IOException(<a name="line.344"></a>
<FONT color="green">345</FONT> "Supplied checksum file '" + filename + "' does not match expected file: '" + expectedPath<a name="line.345"></a>
<FONT color="green">346</FONT> + "'" );<a name="line.346"></a>
<FONT color="green">347</FONT> }<a name="line.347"></a>
<FONT color="green">348</FONT> trimmedChecksum = m.group( 1 );<a name="line.348"></a>
<FONT color="green">349</FONT> }<a name="line.349"></a>
<FONT color="green">350</FONT> }<a name="line.350"></a>
<FONT color="green">351</FONT> return trimmedChecksum;<a name="line.351"></a>
<FONT color="green">352</FONT> }<a name="line.352"></a>
<FONT color="green">353</FONT> }<a name="line.353"></a>
</PRE>
</BODY>
</HTML>