| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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.handlers.http;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.UnsupportedEncodingException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.HashMap;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Map;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.mina.core.buffer.IoBuffer;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.mina.core.filterchain.IoFilter.NextFilter;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.mina.core.future.ConnectFuture;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.mina.core.future.IoFutureListener;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.mina.core.session.IoSession;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.mina.core.session.IoSessionInitializer;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.mina.proxy.AbstractProxyLogicHandler;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.mina.proxy.ProxyAuthException;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.mina.proxy.session.ProxyIoSession;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.mina.proxy.utils.IoBufferDecoder;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.mina.proxy.utils.StringUtilities;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.Logger;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.LoggerFactory;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><a name="line.40"></a> |
| <span class="sourceLineNo">041</span>/**<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * AbstractHttpLogicHandler.java - Base class for HTTP proxy {@link AbstractProxyLogicHandler} implementations. <a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Provides HTTP request encoding/response decoding functionality.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * <a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * @since MINA 2.0.0-M3<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>public abstract class AbstractHttpLogicHandler extends AbstractProxyLogicHandler {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private final static Logger LOGGER = LoggerFactory.getLogger(AbstractHttpLogicHandler.class);<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private final static String DECODER = AbstractHttpLogicHandler.class.getName() + ".Decoder";<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private final static byte[] HTTP_DELIMITER = new byte[] { '\r', '\n', '\r', '\n' };<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private final static byte[] CRLF_DELIMITER = new byte[] { '\r', '\n' };<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> // Parsing vars<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> * Temporary buffer to accumulate the HTTP response from the proxy.<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private IoBuffer responseData = null;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> /**<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * The parsed http proxy response<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private HttpProxyResponse parsedResponse = null;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * The content length of the proxy response.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private int contentLength = -1;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // HTTP/1.1 vars<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> /**<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * A flag that indicates that this is a HTTP/1.1 response with chunked data.and that some chunks are missing. <a name="line.77"></a> |
| <span class="sourceLineNo">078</span> */<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private boolean hasChunkedData;<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> * A flag that indicates that some chunks of data are missing to complete the HTTP/1.1 response. <a name="line.82"></a> |
| <span class="sourceLineNo">083</span> */<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private boolean waitingChunkedData;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> /**<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * A flag that indicates that chunked data has been read and that we're now reading the footers. <a name="line.87"></a> |
| <span class="sourceLineNo">088</span> */<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private boolean waitingFooters;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> /**<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * Contains the position of the entity body start in the <code>responseData</code> {@link IoBuffer}.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> */<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> private int entityBodyStartPosition;<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> * Contains the limit of the entity body start in the <code>responseData</code> {@link IoBuffer}.<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> */<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> private int entityBodyLimitPosition;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> /**<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * Creates a new {@link AbstractHttpLogicHandler}.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * <a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @param proxyIoSession the {@link ProxyIoSession} in use.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> */<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> public AbstractHttpLogicHandler(final ProxyIoSession proxyIoSession) {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> super(proxyIoSession);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> /**<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * Handles incoming data during the handshake process. Should consume only the<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * handshake data from the buffer, leaving any extra data in place.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * <a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * @param nextFilter the next filter<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * @param buf the buffer holding received data<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> */<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> public synchronized void messageReceived(final NextFilter nextFilter, final IoBuffer buf) throws ProxyAuthException {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> LOGGER.debug(" messageReceived()");<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> IoBufferDecoder decoder = (IoBufferDecoder) getSession().getAttribute(DECODER);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> if (decoder == null) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> decoder = new IoBufferDecoder(HTTP_DELIMITER);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> getSession().setAttribute(DECODER, decoder);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> try {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> if (parsedResponse == null) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> responseData = decoder.decodeFully(buf);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (responseData == null) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> return;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // Handle the response <a name="line.134"></a> |
| <span class="sourceLineNo">135</span> String responseHeader = responseData.getString(getProxyIoSession().getCharset().newDecoder());<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> entityBodyStartPosition = responseData.position();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> LOGGER.debug(" response header received:\n{}",<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> responseHeader.replace("\r", "\\r").replace("\n", "\\n\n"));<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> // Parse the response<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> parsedResponse = decodeResponse(responseHeader);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // Is handshake complete ?<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (parsedResponse.getStatusCode() == 200<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> || (parsedResponse.getStatusCode() >= 300 && parsedResponse.getStatusCode() <= 307)) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> buf.position(0);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> setHandshakeComplete();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> return;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> String contentLengthHeader = StringUtilities.getSingleValuedHeader(parsedResponse.getHeaders(),<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> "Content-Length");<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> if (contentLengthHeader == null) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> contentLength = 0;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> } else {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> contentLength = Integer.parseInt(contentLengthHeader.trim());<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> decoder.setContentLength(contentLength, true);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (!hasChunkedData) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> if (contentLength > 0) {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> IoBuffer tmp = decoder.decodeFully(buf);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> if (tmp == null) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> return;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> responseData.setAutoExpand(true);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> responseData.put(tmp);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> contentLength = 0;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> if ("chunked".equalsIgnoreCase(StringUtilities.getSingleValuedHeader(parsedResponse.getHeaders(),<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> "Transfer-Encoding"))) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> // Handle Transfer-Encoding: Chunked<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> LOGGER.debug("Retrieving additional http response chunks");<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> hasChunkedData = true;<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> waitingChunkedData = true;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> if (hasChunkedData) {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // Read chunks<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> while (waitingChunkedData) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> if (contentLength == 0) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> decoder.setDelimiter(CRLF_DELIMITER, false);<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> IoBuffer tmp = decoder.decodeFully(buf);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> if (tmp == null) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> return;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> String chunkSize = tmp.getString(getProxyIoSession().getCharset().newDecoder());<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> int pos = chunkSize.indexOf(';');<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> if (pos >= 0) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> chunkSize = chunkSize.substring(0, pos);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> } else {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> chunkSize = chunkSize.substring(0, chunkSize.length() - 2);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> contentLength = Integer.decode("0x" + chunkSize);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> if (contentLength > 0) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> contentLength += 2; // also read chunk's trailing CRLF<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> decoder.setContentLength(contentLength, true);<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<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> if (contentLength == 0) {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> waitingChunkedData = false;<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> waitingFooters = true;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> entityBodyLimitPosition = responseData.position();<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> break;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> }<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span> IoBuffer tmp = decoder.decodeFully(buf);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> if (tmp == null) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> return;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> contentLength = 0;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> responseData.put(tmp);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> buf.position(buf.position());<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // Read footers<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> while (waitingFooters) {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> decoder.setDelimiter(CRLF_DELIMITER, false);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> IoBuffer tmp = decoder.decodeFully(buf);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> if (tmp == null) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> return;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> if (tmp.remaining() == 2) {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> waitingFooters = false;<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> break;<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // add footer to headers <a name="line.236"></a> |
| <span class="sourceLineNo">237</span> String footer = tmp.getString(getProxyIoSession().getCharset().newDecoder());<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> String[] f = footer.split(":\\s?", 2);<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> StringUtilities.addValueToHeader(parsedResponse.getHeaders(), f[0], f[1], false);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> responseData.put(tmp);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> responseData.put(CRLF_DELIMITER);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> responseData.flip();<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> LOGGER.debug(" end of response received:\n{}",<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> responseData.getString(getProxyIoSession().getCharset().newDecoder()));<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // Retrieve entity body content<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> responseData.position(entityBodyStartPosition);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> responseData.limit(entityBodyLimitPosition);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> parsedResponse.setBody(responseData.getString(getProxyIoSession().getCharset().newDecoder()));<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> // Free the response buffer<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> responseData.free();<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> responseData = null;<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> handleResponse(parsedResponse);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> parsedResponse = null;<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> hasChunkedData = false;<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> contentLength = -1;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> decoder.setDelimiter(HTTP_DELIMITER, true);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span> if (!isHandshakeComplete()) {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> doHandshake(nextFilter);<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> } catch (Exception ex) {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> if (ex instanceof ProxyAuthException) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> throw ((ProxyAuthException) ex);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> }<a name="line.272"></a> |
| <span class="sourceLineNo">273</span><a name="line.273"></a> |
| <span class="sourceLineNo">274</span> throw new ProxyAuthException("Handshake failed", ex);<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span><a name="line.277"></a> |
| <span class="sourceLineNo">278</span> /**<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * Handles a HTTP response from the proxy server.<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * <a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * @param response The response.<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> */<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> public abstract void handleResponse(final HttpProxyResponse response) throws ProxyAuthException;<a name="line.283"></a> |
| <span class="sourceLineNo">284</span><a name="line.284"></a> |
| <span class="sourceLineNo">285</span> /**<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * Calls writeRequest0(NextFilter, HttpProxyRequest) to write the request. <a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * If needed a reconnection to the proxy is done previously.<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * <a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * @param nextFilter the next filter<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * @param request the http request<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> */<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> public void writeRequest(final NextFilter nextFilter, final HttpProxyRequest request) {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> ProxyIoSession proxyIoSession = getProxyIoSession();<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> if (proxyIoSession.isReconnectionNeeded()) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> reconnect(nextFilter, request);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> } else {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> writeRequest0(nextFilter, request);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<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> /**<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> * Encodes a HTTP request and sends it to the proxy server.<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> * <a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * @param nextFilter the next filter<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * @param request the http request<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> */<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> private void writeRequest0(final NextFilter nextFilter, final HttpProxyRequest request) {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> try {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> String data = request.toHttpString();<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> IoBuffer buf = IoBuffer.wrap(data.getBytes(getProxyIoSession().getCharsetName()));<a name="line.311"></a> |
| <span class="sourceLineNo">312</span><a name="line.312"></a> |
| <span class="sourceLineNo">313</span> LOGGER.debug(" write:\n{}", data.replace("\r", "\\r").replace("\n", "\\n\n"));<a name="line.313"></a> |
| <span class="sourceLineNo">314</span><a name="line.314"></a> |
| <span class="sourceLineNo">315</span> writeData(nextFilter, buf);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span><a name="line.316"></a> |
| <span class="sourceLineNo">317</span> } catch (UnsupportedEncodingException ex) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> closeSession("Unable to send HTTP request: ", ex);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span><a name="line.321"></a> |
| <span class="sourceLineNo">322</span> /**<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * Method to reconnect to the proxy when it decides not to maintain the connection <a name="line.323"></a> |
| <span class="sourceLineNo">324</span> * during handshake.<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> * <a name="line.325"></a> |
| <span class="sourceLineNo">326</span> * @param nextFilter the next filter<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> * @param request the http request<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> */<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> private void reconnect(final NextFilter nextFilter, final HttpProxyRequest request) {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> LOGGER.debug("Reconnecting to proxy ...");<a name="line.330"></a> |
| <span class="sourceLineNo">331</span><a name="line.331"></a> |
| <span class="sourceLineNo">332</span> final ProxyIoSession proxyIoSession = getProxyIoSession();<a name="line.332"></a> |
| <span class="sourceLineNo">333</span><a name="line.333"></a> |
| <span class="sourceLineNo">334</span> // Fires reconnection<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> proxyIoSession.getConnector().connect(new IoSessionInitializer<ConnectFuture>() {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> public void initializeSession(final IoSession session, ConnectFuture future) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> LOGGER.debug("Initializing new session: {}", session);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> session.setAttribute(ProxyIoSession.PROXY_SESSION, proxyIoSession);<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> proxyIoSession.setSession(session);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> LOGGER.debug(" setting up proxyIoSession: {}", proxyIoSession);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> future.addListener(new IoFutureListener<ConnectFuture>() {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> public void operationComplete(ConnectFuture future) {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> // Reconnection is done so we send the<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // request to the proxy<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> proxyIoSession.setReconnectionNeeded(false);<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> writeRequest0(nextFilter, request);<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> }<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> });<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> });<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span><a name="line.352"></a> |
| <span class="sourceLineNo">353</span> /**<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * Parse a HTTP response from the proxy server.<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> * <a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * @param response The response string.<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> */<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> protected HttpProxyResponse decodeResponse(final String response) throws Exception {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> LOGGER.debug(" parseResponse()");<a name="line.359"></a> |
| <span class="sourceLineNo">360</span><a name="line.360"></a> |
| <span class="sourceLineNo">361</span> // Break response into lines<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> String[] responseLines = response.split(HttpProxyConstants.CRLF);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span><a name="line.363"></a> |
| <span class="sourceLineNo">364</span> // Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> // BUG FIX : Trimed to prevent failures with some proxies that add <a name="line.365"></a> |
| <span class="sourceLineNo">366</span> // extra space chars like "Microsoft-IIS/5.0" ...<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> String[] statusLine = responseLines[0].trim().split(" ", 2);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (statusLine.length < 2) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> throw new Exception("Invalid response status line (" + statusLine + "). Response: " + response);<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span><a name="line.372"></a> |
| <span class="sourceLineNo">373</span> // Status code is 3 digits<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> if (!statusLine[1].matches("^\\d\\d\\d")) {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> throw new Exception("Invalid response code (" + statusLine[1] + "). Response: " + response);<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> }<a name="line.376"></a> |
| <span class="sourceLineNo">377</span><a name="line.377"></a> |
| <span class="sourceLineNo">378</span> Map<String, List<String>> headers = new HashMap<String, List<String>>();<a name="line.378"></a> |
| <span class="sourceLineNo">379</span><a name="line.379"></a> |
| <span class="sourceLineNo">380</span> for (int i = 1; i < responseLines.length; i++) {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> String[] args = responseLines[i].split(":\\s?", 2);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> StringUtilities.addValueToHeader(headers, args[0], args[1], false);<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span><a name="line.384"></a> |
| <span class="sourceLineNo">385</span> return new HttpProxyResponse(statusLine[0], statusLine[1], headers);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span>}<a name="line.387"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
