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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> *<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> */<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>package org.apache.mina.proxy.utils;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.ByteArrayOutputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.UnsupportedEncodingException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.HashMap;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import javax.security.sasl.AuthenticationException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import javax.security.sasl.SaslException;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span>/**<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * StringUtilities.java - Various methods to handle strings.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * <a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * @since MINA 2.0.0-M3<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> */<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>public class StringUtilities {<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span> /**<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * A directive is a parameter of the digest authentication process.<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * Returns the value of a directive from the map. If mandatory is true and the <a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * value is null, then it throws an {@link AuthenticationException}.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * <a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * @param directivesMap the directive's map <a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * @param directive the name of the directive we want to retrieve<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * @param mandatory is the directive mandatory<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * @return the mandatory value as a String<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * @throws AuthenticationException if mandatory is true and if <a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * directivesMap.get(directive) == null<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> */<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> public static String getDirectiveValue(HashMap<String, String> directivesMap, String directive, boolean mandatory)<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> throws AuthenticationException {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> String value = directivesMap.get(directive);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> if (value == null) {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> if (mandatory) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> throw new AuthenticationException("\"" + directive + "\" mandatory directive is missing");<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> }<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> return "";<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> }<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> return value;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> }<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> /**<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * Copy the directive to the {@link StringBuilder} if not null.<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * (A directive is a parameter of the digest authentication process.)<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * <a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @param directives the directives map<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * @param sb the output buffer<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @param directive the directive name to look for<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static void copyDirective(HashMap<String, String> directives, StringBuilder sb, String directive) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> String directiveValue = directives.get(directive);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> if (directiveValue != null) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> sb.append(directive).append(" = \"").append(directiveValue).append("\", ");<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> /**<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * Copy the directive from the source map to the destination map, if it's<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * value isn't null.<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * (A directive is a parameter of the digest authentication process.)<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * <a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * @param src the source map<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * @param dst the destination map<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * @param directive the directive name<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * @return the value of the copied directive<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> */<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> public static String copyDirective(HashMap<String, String> src, HashMap<String, String> dst, String directive) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> String directiveValue = src.get(directive);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (directiveValue != null) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> dst.put(directive, directiveValue);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> return directiveValue;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> /**<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * Parses digest-challenge string, extracting each token and value(s). Each token<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * is a directive.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> *<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @param buf A non-null digest-challenge string.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * @return A Map containing the aprsed directives<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * @throws SaslException if the String cannot be parsed according to RFC 2831<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> */<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public static HashMap<String, String> parseDirectives(byte[] buf) throws SaslException {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> HashMap<String, String> map = new HashMap<String, String>();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> boolean gettingKey = true;<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> boolean gettingQuotedValue = false;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> boolean expectSeparator = false;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> byte bch;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> ByteArrayOutputStream key = new ByteArrayOutputStream(10);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> ByteArrayOutputStream value = new ByteArrayOutputStream(10);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> int i = skipLws(buf, 0);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> while (i < buf.length) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> bch = buf[i];<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> if (gettingKey) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (bch == ',') {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> if (key.size() != 0) {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> throw new SaslException("Directive key contains a ',':" + key);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // Empty element, skip separator and lws<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> i = skipLws(buf, i + 1);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> } else if (bch == '=') {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> if (key.size() == 0) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> throw new SaslException("Empty directive key");<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> gettingKey = false; // Termination of key<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> i = skipLws(buf, i + 1); // Skip to next non whitespace<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // Check whether value is quoted<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> if (i < buf.length) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> if (buf[i] == '"') {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> gettingQuotedValue = true;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> ++i; // Skip quote<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> } else {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> throw new SaslException("Valueless directive found: " + key.toString());<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> } else if (isLws(bch)) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> // LWS that occurs after key<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> i = skipLws(buf, i + 1);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // Expecting '='<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> if (i < buf.length) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (buf[i] != '=') {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> throw new SaslException("'=' expected after key: " + key.toString());<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> } else {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> throw new SaslException("'=' expected after key: " + key.toString());<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> } else {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> key.write(bch); // Append to key<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> ++i; // Advance<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> } else if (gettingQuotedValue) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // Getting a quoted value<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> if (bch == '\\') {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // quoted-pair = "\" CHAR ==> CHAR<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> ++i; // Skip escape<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (i < buf.length) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> value.write(buf[i]);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> ++i; // Advance<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> } else {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> // Trailing escape in a quoted value<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> throw new SaslException("Unmatched quote found for directive: " + key.toString()<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> + " with value: " + value.toString());<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> } else if (bch == '"') {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> // closing quote<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> ++i; // Skip closing quote<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> gettingQuotedValue = false;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> expectSeparator = true;<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> } else {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> value.write(bch);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> ++i; // Advance<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> } else if (isLws(bch) || bch == ',') {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // Value terminated<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> extractDirective(map, key.toString(), value.toString());<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> key.reset();<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> value.reset();<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> gettingKey = true;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> gettingQuotedValue = expectSeparator = false;<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> i = skipLws(buf, i + 1); // Skip separator and LWS<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> } else if (expectSeparator) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> throw new SaslException("Expecting comma or linear whitespace after quoted string: \""<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> + value.toString() + "\"");<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> } else {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> value.write(bch); // Unquoted value<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> ++i; // Advance<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span><a name="line.201"></a> |
| <span class="sourceLineNo">202</span> if (gettingQuotedValue) {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> throw new SaslException("Unmatched quote found for directive: " + key.toString() + " with value: "<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> + value.toString());<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> }<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> // Get last pair<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> if (key.size() > 0) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> extractDirective(map, key.toString(), value.toString());<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> }<a name="line.210"></a> |
| <span class="sourceLineNo">211</span><a name="line.211"></a> |
| <span class="sourceLineNo">212</span> return map;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> }<a name="line.213"></a> |
| <span class="sourceLineNo">214</span><a name="line.214"></a> |
| <span class="sourceLineNo">215</span> /**<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> * Processes directive/value pairs from the digest-challenge and<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> * fill out the provided map.<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> * <a name="line.218"></a> |
| <span class="sourceLineNo">219</span> * @param key A non-null String challenge token name.<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> * @param value A non-null String token value.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> * @throws SaslException if either the key or the value is null or<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> * if the key already has a value. <a name="line.222"></a> |
| <span class="sourceLineNo">223</span> */<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> private static void extractDirective(HashMap<String, String> map, String key, String value) throws SaslException {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> if (map.get(key) != null) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> throw new SaslException("Peer sent more than one " + key + " directive");<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> map.put(key, value);<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span><a name="line.231"></a> |
| <span class="sourceLineNo">232</span> /**<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * Is character a linear white space ?<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> * LWS = [CRLF] 1*( SP | HT )<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * Note that we're checking individual bytes instead of CRLF<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> * <a name="line.236"></a> |
| <span class="sourceLineNo">237</span> * @param b the byte to check<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> * @return <tt>true</tt> if it's a linear white space<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> */<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> public static boolean isLws(byte b) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> switch (b) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> case 13: // US-ASCII CR, carriage return<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> case 10: // US-ASCII LF, line feed<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> case 32: // US-ASCII SP, space<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> case 9: // US-ASCII HT, horizontal-tab<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> return true;<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span><a name="line.248"></a> |
| <span class="sourceLineNo">249</span> return false;<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span><a name="line.251"></a> |
| <span class="sourceLineNo">252</span> /**<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * Skip all linear white spaces<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * <a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * @param buf the buf which is being scanned for lws<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param start the offset to start at<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @return the next position in buf which isn't a lws character<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> */<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> private static int skipLws(byte[] buf, int start) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> int i;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> for (i = start; i < buf.length; i++) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (!isLws(buf[i])) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> return i;<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span><a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return i;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> /**<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * Used to convert username-value, passwd or realm to 8859_1 encoding<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * if all chars in string are within the 8859_1 (Latin 1) encoding range.<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * <a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * @param str a non-null String<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * @return a non-null String containing the 8859_1 encoded string<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> * @throws UnsupportedEncodingException if we weren't able to decode using the ISO 8859_1 encoding<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> */<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> public static String stringTo8859_1(String str) throws UnsupportedEncodingException {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> if (str == null) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> return "";<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> }<a name="line.282"></a> |
| <span class="sourceLineNo">283</span><a name="line.283"></a> |
| <span class="sourceLineNo">284</span> return new String(str.getBytes("UTF8"), "8859_1");<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span><a name="line.286"></a> |
| <span class="sourceLineNo">287</span> /**<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * Returns the value of the named header. If it has multiple values<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * then an {@link IllegalArgumentException} is thrown<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * <a name="line.290"></a> |
| <span class="sourceLineNo">291</span> * @param headers the http headers map<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> * @param key the key of the header <a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * @return the value of the http header<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> */<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> public static String getSingleValuedHeader(Map<String, List<String>> headers, String key) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> List<String> values = headers.get(key);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span><a name="line.297"></a> |
| <span class="sourceLineNo">298</span> if (values == null) {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> return null;<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span><a name="line.301"></a> |
| <span class="sourceLineNo">302</span> if (values.size() > 1) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> throw new IllegalArgumentException("Header with key [\"" + key + "\"] isn't single valued !");<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> }<a name="line.304"></a> |
| <span class="sourceLineNo">305</span><a name="line.305"></a> |
| <span class="sourceLineNo">306</span> return values.get(0);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> /**<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * Adds an header to the provided map of headers.<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * <a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @param headers the http headers map<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @param key the name of the new header to add<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> * @param value the value of the added header<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * @param singleValued if true and the map already contains one value<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> * then it is replaced by the new value. Otherwise it simply adds a new<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * value to this multi-valued header.<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> */<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> public static void addValueToHeader(Map<String, List<String>> headers, String key, String value,<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> boolean singleValued) {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> List<String> values = headers.get(key);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span><a name="line.322"></a> |
| <span class="sourceLineNo">323</span> if (values == null) {<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> values = new ArrayList<String>(1);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> headers.put(key, values);<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> }<a name="line.326"></a> |
| <span class="sourceLineNo">327</span><a name="line.327"></a> |
| <span class="sourceLineNo">328</span> if (singleValued && values.size() == 1) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> values.set(0, value);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> } else {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> values.add(value);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> }<a name="line.333"></a> |
| <span class="sourceLineNo">334</span>}<a name="line.334"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |