Rev 1306 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | fvelez | 1 | package pt.estgp.estgweb.web; |
| 2 | |||
| 3 | import org.apache.log4j.Logger; |
||
| 4 | import org.apache.commons.httpclient.util.URIUtil; |
||
| 5 | |||
| 6 | import javax.servlet.http.HttpServlet; |
||
| 7 | import javax.servlet.http.HttpServletRequest; |
||
| 8 | import javax.servlet.http.HttpServletResponse; |
||
| 9 | import javax.servlet.ServletException; |
||
| 10 | import java.io.IOException; |
||
| 11 | import java.io.InputStream; |
||
| 12 | import java.io.OutputStream; |
||
| 13 | import java.io.FileNotFoundException; |
||
| 14 | import java.net.URL; |
||
| 15 | import java.net.URLConnection; |
||
| 16 | |||
| 17 | import pt.estgp.estgweb.utils.ConfigProperties; |
||
| 18 | |||
| 19 | /** |
||
| 20 | * @author Jorge Machado |
||
| 21 | * @date 26/Fev/2008 |
||
| 22 | * @time 12:46:16 |
||
| 23 | * @see pt.estgp.estgweb.web |
||
| 24 | */ |
||
| 25 | public class HTTPProxy extends HttpServlet |
||
| 26 | { |
||
| 27 | |||
| 851 | jmachado | 28 | /** sss requests for both HTTP <code>GET</code> and <code>POST</code> methods. |
| 1 | fvelez | 29 | * @param request servlet request |
| 30 | * @param response servlet response |
||
| 31 | */ |
||
| 32 | |||
| 33 | private static final 1.5.0/docs/api/java/util/logging/Logger.html">Logger logger = 1.5.0/docs/api/java/util/logging/Logger.html">Logger.getLogger(HTTPProxy.class); |
||
| 34 | |||
| 35 | protected void processRequest(HttpServletRequest request, HttpServletResponse response) |
||
| 36 | throws ServletException, 1.5.0/docs/api/java/io/IOException.html">IOException |
||
| 37 | { |
||
| 38 | 1.5.0/docs/api/java/lang/String.html">String path = (1.5.0/docs/api/java/lang/String.html">String) request.getAttribute("path"); |
||
| 39 | 1.5.0/docs/api/java/lang/String.html">String server = (1.5.0/docs/api/java/lang/String.html">String) request.getAttribute("server"); |
||
| 40 | 1.5.0/docs/api/java/lang/String.html">String useOutputStream = (1.5.0/docs/api/java/lang/String.html">String) request.getAttribute("useOutputStream"); |
||
| 41 | logger.info("server:" + server); |
||
| 42 | logger.info("path:" + path); |
||
| 43 | if(path != null) |
||
| 44 | { |
||
| 45 | try |
||
| 46 | { |
||
| 47 | 1.5.0/docs/api/java/net/URL.html">URL url = new 1.5.0/docs/api/java/net/URL.html">URL(server + URIUtil.encodePath(path,"ISO-8859-1")); |
||
| 48 | |||
| 49 | 1.5.0/docs/api/java/net/URLConnection.html">URLConnection con = url.openConnection(); |
||
| 50 | response.setContentType(con.getContentType()); |
||
| 51 | response.setContentLength(con.getContentLength()); |
||
| 52 | 5+0%2Fdocs%2Fapi+InputStream">InputStream stream = con.getInputStream(); |
||
| 53 | |||
| 54 | byte[] buf = new byte[1024]; |
||
| 55 | int readedBytes; |
||
| 56 | if(useOutputStream!=null && useOutputStream.equals("true")) |
||
| 57 | { |
||
| 58 | |||
| 59 | 5+0%2Fdocs%2Fapi+OutputStream">OutputStream os = response.getOutputStream(); |
||
| 60 | while((readedBytes = stream.read(buf)) > 0) |
||
| 61 | { |
||
| 62 | os.write(buf,0,readedBytes); |
||
| 63 | } |
||
| 64 | os.close(); |
||
| 65 | } |
||
| 66 | else |
||
| 67 | { |
||
| 68 | while((readedBytes = stream.read(buf)) > 0) |
||
| 69 | { |
||
| 70 | 1.5.0/docs/api/java/lang/String.html">String s = new 1.5.0/docs/api/java/lang/String.html">String(buf,0,readedBytes,"ISO-8859-1"); |
||
| 71 | response.getWriter().write(s); |
||
| 72 | } |
||
| 73 | } |
||
| 74 | } |
||
| 75 | catch(1.5.0/docs/api/java/io/FileNotFoundException.html">FileNotFoundException e) |
||
| 76 | { |
||
| 77 | throw new 1.5.0/docs/api/java/io/FileNotFoundException.html">FileNotFoundException("url not found for server:" + server + " and path:" + path); |
||
| 78 | } |
||
| 79 | catch(1.5.0/docs/api/java/lang/Exception.html">Exception e) |
||
| 80 | { |
||
| 81 | throw new 1.5.0/docs/api/java/io/IOException.html">IOException(e.toString()); |
||
| 82 | } |
||
| 83 | } |
||
| 84 | else |
||
| 85 | { |
||
| 86 | throw new 1.5.0/docs/api/java/io/FileNotFoundException.html">FileNotFoundException("url not found for server:" + server + " and path:" + path); |
||
| 87 | } |
||
| 88 | } |
||
| 89 | |||
| 90 | // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> |
||
| 91 | /** Handles the HTTP <code>GET</code> method. |
||
| 92 | * @param request servlet request |
||
| 93 | * @param response servlet response |
||
| 94 | */ |
||
| 95 | protected void doGet(HttpServletRequest request, HttpServletResponse response) |
||
| 96 | throws ServletException, 1.5.0/docs/api/java/io/IOException.html">IOException { |
||
| 97 | processRequest(request, response); |
||
| 98 | } |
||
| 99 | |||
| 100 | /** Handles the HTTP <code>POST</code> method. |
||
| 101 | * @param request servlet request |
||
| 102 | * @param response servlet response |
||
| 103 | */ |
||
| 104 | protected void doPost(HttpServletRequest request, HttpServletResponse response) |
||
| 105 | throws ServletException, 1.5.0/docs/api/java/io/IOException.html">IOException { |
||
| 106 | processRequest(request, response); |
||
| 107 | } |
||
| 108 | |||
| 109 | /** Returns a short description of the servlet. |
||
| 110 | */ |
||
| 111 | public 1.5.0/docs/api/java/lang/String.html">String getServletInfo() { |
||
| 112 | return "Proxy Servlet to get pages form static web page servers"; |
||
| 113 | } |
||
| 114 | // </editor-fold> |
||
| 115 | } |