+++ /dev/null
-// Connection.java - Implementation of HttpURLConnection for http protocol.
-
-/* Copyright (C) 1999, 2000 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-package gnu.gcj.protocol.http;
-
-import java.net.*;
-import java.io.*;
-import java.util.Vector;
-import java.util.Hashtable;
-import java.util.Enumeration;
-
-/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date March 29, 1999.
- */
-
-/**
- * Written using on-line Java Platform 1.2 API Specification, as well
- * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
- * Status: Minimal subset of functionality. Proxies and Redirects
- * not yet handled. FileNameMap handling needs to be considered.
- * useCaches, ifModifiedSince, and allowUserInteraction need
- * consideration as well as doInput and doOutput.
- */
-
-class Connection extends HttpURLConnection
-{
- protected Socket sock = null;
- private static Hashtable defRequestProperties = new Hashtable();
- private Hashtable requestProperties;
- private Hashtable hdrHash = new Hashtable();
- private Vector hdrVec = new Vector();
- private BufferedInputStream bufferedIn;
-
- public Connection(URL url)
- {
- super(url);
- requestProperties = (Hashtable) defRequestProperties.clone();
- }
-
- // Override method in URLConnection.
- public static void setDefaultRequestProperty(String key, String value)
- {
- defRequestProperties.put(key, value);
- }
-
- // Override method in URLConnection.
- public static String getDefaultRequestProperty(String key)
- {
- return (String) defRequestProperties.get(key);
- }
-
- // Override method in URLConnection.
- public void setRequestProperty(String key, String value)
- {
- if (connected)
- throw new IllegalAccessError("Connection already established.");
-
- requestProperties.put(key, value);
- }
-
- // Override method in URLConnection.
- public String getRequestProperty(String key)
- {
- if (connected)
- throw new IllegalAccessError("Connection already established.");
-
- return (String) requestProperties.get(key);
- }
-
- // Implementation of abstract method.
- public void connect() throws IOException
- {
- // Call is ignored if already connected.
- if (connected)
- return;
-
- // Get address and port number.
- int port;
- InetAddress destAddr = InetAddress.getByName(url.getHost());
- if ((port = url.getPort()) == -1)
- port = 80;
-
- // Open socket and output stream.
- sock = new Socket(destAddr, port);
- PrintWriter out = new PrintWriter(sock.getOutputStream());
-
- // Send request including any request properties that were set.
- out.print(getRequestMethod() + " " + url.getFile() + " HTTP/1.0\n");
- out.print("Host: " + url.getHost() + ":" + port + "\n");
- Enumeration reqKeys = requestProperties.keys();
- Enumeration reqVals = requestProperties.elements();
- while (reqKeys.hasMoreElements())
- out.print(reqKeys.nextElement() + ": " + reqVals.nextElement() + "\n");
- out.print("\n");
- out.flush();
- getHttpHeaders();
- connected = true;
- }
-
- // Implementation of abstract method.
- public void disconnect()
- {
- if (sock != null)
- {
- try
- {
- sock.close();
- }
- catch (IOException ex)
- {
- ; // Ignore errors in closing socket.
- }
- sock = null;
- }
- }
-
- // TODO: public boolean usingProxy()
- public boolean usingProxy()
- {
- return false;
- }
-
- // Override default method in URLConnection.
- public InputStream getInputStream() throws IOException
- {
- if (!connected)
- connect();
-
- if (!doInput)
- throw new ProtocolException("Can't open InputStream if doInput is false");
- return bufferedIn;
- }
-
- // Override default method in URLConnection.
- public OutputStream getOutputStream() throws IOException
- {
- if (!connected)
- connect();
-
- if (! doOutput)
- throw new
- ProtocolException("Can't open OutputStream if doOutput is false");
- return sock.getOutputStream();
- }
-
- // Override default method in URLConnection.
- public String getHeaderField(String name)
- {
- if (!connected)
- try
- {
- connect();
- }
- catch (IOException x)
- {
- return null;
- }
-
- return (String) hdrHash.get(name.toLowerCase());
- }
-
- // Override default method in URLConnection.
- public String getHeaderField(int n)
- {
- if (!connected)
- try
- {
- connect();
- }
- catch (IOException x)
- {
- return null;
- }
-
- if (n < hdrVec.size())
- return getField((String) hdrVec.elementAt(n));
- return null;
- }
-
- // Override default method in URLConnection.
- public String getHeaderFieldKey(int n)
- {
- if (!connected)
- try
- {
- connect();
- }
- catch (IOException x)
- {
- return null;
- }
-
- if (n < hdrVec.size())
- return getKey((String) hdrVec.elementAt(n));
- return null;
- }
-
- private String getKey(String str)
- {
- if (str == null)
- return null;
- int index = str.indexOf(':');
- if (index >= 0)
- return str.substring(0, index);
- else
- return null;
- }
-
- private String getField(String str)
- {
- if (str == null)
- return null;
- int index = str.indexOf(':');
- if (index >= 0)
- return str.substring(index + 1).trim();
- else
- return str;
- }
-
- private void getHttpHeaders() throws IOException
- {
- // Originally tried using a BufferedReader here to take advantage of
- // the readLine method and avoid the following, but the buffer read
- // past the end of the headers so the first part of the content was lost.
- // It is probably more robust than it needs to be, e.g. the byte[]
- // is unlikely to overflow and a '\r' should always be followed by a '\n',
- // but it is better to be safe just in case.
- bufferedIn = new BufferedInputStream(sock.getInputStream());
-
- int buflen = 100;
- byte[] buf = new byte[buflen];
- String line = "";
- boolean gotnl = false;
- byte[] ch = new byte[1];
- ch[0] = (byte) '\n';
-
- while (true)
- {
- // Check for leftover byte from non-'\n' after a '\r'.
- if (ch[0] != '\n')
- line = line + '\r' + new String(ch, 0, 1);
-
- int i;
- // FIXME: This is rather inefficient.
- for (i = 0; i < buflen; i++)
- {
- buf[i] = (byte) bufferedIn.read();
- if (buf[i] == -1)
- throw new IOException("Malformed HTTP header");
- if (buf[i] == '\r')
- {
- bufferedIn.read(ch, 0, 1);
- if (ch[0] == '\n')
- gotnl = true;
- break;
- }
- }
- line = line + new String(buf, 0, i);
-
- // A '\r' '\n' combo indicates the end of the header entry.
- // If it wasn't found, cycle back through the loop and append
- // to 'line' until one is found.
- if (gotnl)
- {
- // A zero length entry signals the end of the headers.
- if (line.length() == 0)
- break;
-
- // Store the header and reinitialize for next cycle.
- hdrVec.addElement(line);
- String key = getKey(line);
- if (key != null)
- hdrHash.put(key.toLowerCase(), getField(line));
- line = "";
- ch[0] = (byte) '\n';
- gotnl = false;
- }
- }
- }
-}
projects / msp430-gcc.git / blobdiff