@@ -1,7 +1,7 @@
/* /*
* The Apache Software License, Version 1.1 * The Apache Software License, Version 1.1
* *
* Copyright (c) 1999 The Apache Software Foundation. All rights
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved. * reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@@ -9,7 +9,7 @@
* are met: * are met:
* *
* 1. Redistributions of source code must retain the above copyright * 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* notice, this list of conditions and the following disclaimer.
* *
* 2. Redistributions in binary form must reproduce the above copyright * 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in * notice, this list of conditions and the following disclaimer in
@@ -17,15 +17,15 @@
* distribution. * distribution.
* *
* 3. The end-user documentation included with the redistribution, if * 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)." * Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself, * Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear. * if and wherever such third-party acknowlegements normally appear.
* *
* 4. The names "The Jakarta Project", "Ant", and "Apache Software * 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived * Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* from this software without prior written permission. For written
* permission, please contact apache@apache.org. * permission, please contact apache@apache.org.
* *
* 5. Products derived from this software may not be called "Apache" * 5. Products derived from this software may not be called "Apache"
@@ -67,9 +67,9 @@ import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project; import org.apache.tools.ant.Project;
/** /**
* Get a particular file from a URL source.
* Options include verbose reporting, timestamp based fetches and controlling
* actions on failures. NB: access through a firewall only works if the whole
* Get a particular file from a URL source.
* Options include verbose reporting, timestamp based fetches and controlling
* actions on failures. NB: access through a firewall only works if the whole
* Java runtime is correctly configured. * Java runtime is correctly configured.
* *
* @author costin@dnt.ro * @author costin@dnt.ro
@@ -84,7 +84,7 @@ public class Get extends Task {
private String uname = null; private String uname = null;
private String pword = null; private String pword = null;
/** /**
* Does the work. * Does the work.
* *
@@ -99,12 +99,12 @@ public class Get extends Task {
throw new BuildException("dest attribute is required", location); throw new BuildException("dest attribute is required", location);
} }
if (dest.exists() && dest.isDirectory()) {
if (dest.exists() && dest.isDirectory()) {
throw new BuildException("The specified destination is a directory", throw new BuildException("The specified destination is a directory",
location); location);
} }
if (dest.exists() && !dest.canWrite()) {
if (dest.exists() && !dest.canWrite()) {
throw new BuildException("Can't write to " + dest.getAbsolutePath(), throw new BuildException("Can't write to " + dest.getAbsolutePath(),
location); location);
} }
@@ -123,10 +123,10 @@ public class Get extends Task {
Date t=new Date(timestamp); Date t=new Date(timestamp);
log("local file date : "+t.toString()); log("local file date : "+t.toString());
} }
hasTimestamp=true; hasTimestamp=true;
} }
//set up the URL connection //set up the URL connection
URLConnection connection=source.openConnection(); URLConnection connection=source.openConnection();
//modify the headers //modify the headers
@@ -134,24 +134,23 @@ public class Get extends Task {
if(useTimestamp && hasTimestamp) { if(useTimestamp && hasTimestamp) {
connection.setIfModifiedSince(timestamp); connection.setIfModifiedSince(timestamp);
} }
// prepare Java 1.1 style credentials
if (uname != null || pword != null) {
String up = uname + ":" + pword;
String encoding;
// check to see if sun's Base64 encoder is available.
try {
sun.misc.BASE64Encoder encoder =
(sun.misc.BASE64Encoder) Class.forName("sun.misc.BASE64Encoder").newInstance();
encoding = encoder.encode (up.getBytes());
}
catch (Exception ex) { // sun's base64 encoder isn't available
Base64Converter encoder = new Base64Converter();
encoding = encoder.encode(up.getBytes());
}
connection.setRequestProperty ("Authorization", "Basic " + encoding);
}
// prepare Java 1.1 style credentials
if (uname != null || pword != null) {
String up = uname + ":" + pword;
String encoding;
// check to see if sun's Base64 encoder is available.
try {
sun.misc.BASE64Encoder encoder =
(sun.misc.BASE64Encoder) Class.forName("sun.misc.BASE64Encoder").newInstance();
encoding = encoder.encode (up.getBytes());
}
catch (Exception ex) { // sun's base64 encoder isn't available
Base64Converter encoder = new Base64Converter();
encoding = encoder.encode(up.getBytes());
}
connection.setRequestProperty ("Authorization", "Basic " + encoding);
}
//connect to the remote site (may take some time) //connect to the remote site (may take some time)
connection.connect(); connection.connect();
@@ -160,23 +159,23 @@ public class Get extends Task {
HttpURLConnection httpConnection=(HttpURLConnection)connection; HttpURLConnection httpConnection=(HttpURLConnection)connection;
if(httpConnection.getResponseCode()==HttpURLConnection.HTTP_NOT_MODIFIED) { if(httpConnection.getResponseCode()==HttpURLConnection.HTTP_NOT_MODIFIED) {
//not modified so no file download. just return instead //not modified so no file download. just return instead
//and trace out something so the user doesn't think that the
//and trace out something so the user doesn't think that the
//download happened when it didnt //download happened when it didnt
log("Not modified - so not downloaded"); log("Not modified - so not downloaded");
return;
return;
} }
// test for 401 result (HTTP only)
// test for 401 result (HTTP only)
if(httpConnection.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) { if(httpConnection.getResponseCode()==HttpURLConnection.HTTP_UNAUTHORIZED) {
log("Not authorized - check " + dest + " for details"); log("Not authorized - check " + dest + " for details");
return;
return;
} }
} }
//REVISIT: at this point even non HTTP connections may support the if-modified-since //REVISIT: at this point even non HTTP connections may support the if-modified-since
//behaviour -we just check the date of the content and skip the write if it is not //behaviour -we just check the date of the content and skip the write if it is not
//newer. Some protocols (FTP) dont include dates, of course.
//newer. Some protocols (FTP) dont include dates, of course.
FileOutputStream fos = new FileOutputStream(dest); FileOutputStream fos = new FileOutputStream(dest);
InputStream is=null; InputStream is=null;
@@ -190,15 +189,15 @@ public class Get extends Task {
} }
if( is==null ) { if( is==null ) {
log( "Can't get " + source + " to " + dest); log( "Can't get " + source + " to " + dest);
if(ignoreErrors)
if(ignoreErrors)
return; return;
throw new BuildException( "Can't get " + source + " to " + dest, throw new BuildException( "Can't get " + source + " to " + dest,
location); location);
} }
byte[] buffer = new byte[100 * 1024]; byte[] buffer = new byte[100 * 1024];
int length; int length;
while ((length = is.read(buffer)) >= 0) { while ((length = is.read(buffer)) >= 0) {
fos.write(buffer, 0, length); fos.write(buffer, 0, length);
if (verbose) System.out.print("."); if (verbose) System.out.print(".");
@@ -206,8 +205,8 @@ public class Get extends Task {
if(verbose) System.out.println(); if(verbose) System.out.println();
fos.close(); fos.close();
is.close(); is.close();
//if (and only if) the use file time option is set, then the
//if (and only if) the use file time option is set, then the
//saved file now has its timestamp set to that of the downloaded file //saved file now has its timestamp set to that of the downloaded file
if(useTimestamp) { if(useTimestamp) {
long remoteTimestamp=connection.getLastModified(); long remoteTimestamp=connection.getLastModified();
@@ -219,18 +218,15 @@ public class Get extends Task {
if(remoteTimestamp!=0) if(remoteTimestamp!=0)
touchFile(dest,remoteTimestamp); touchFile(dest,remoteTimestamp);
} }
} catch (IOException ioe) { } catch (IOException ioe) {
log("Error getting " + source + " to " + dest ); log("Error getting " + source + " to " + dest );
if(ignoreErrors)
if(ignoreErrors)
return; return;
throw new BuildException(ioe, location); throw new BuildException(ioe, location);
} }
} }
/**
/**
* set the timestamp of a named file to a specified time. * set the timestamp of a named file to a specified time.
* *
* @param filename * @param filename
@@ -240,7 +236,7 @@ public class Get extends Task {
*@exception BuildException Thrown in unrecoverable error. Likely *@exception BuildException Thrown in unrecoverable error. Likely
*this comes from file access failures. *this comes from file access failures.
*/ */
protected boolean touchFile(File file, long timemillis)
protected boolean touchFile(File file, long timemillis)
throws BuildException { throws BuildException {
if (project.getJavaVersion() != Project.JAVA_1_1) { if (project.getJavaVersion() != Project.JAVA_1_1) {
@@ -252,11 +248,11 @@ public class Get extends Task {
touch.setMillis(timemillis); touch.setMillis(timemillis);
touch.touch(); touch.touch();
return true; return true;
} else { } else {
return false; return false;
} }
}
}
/** /**
* Set the URL. * Set the URL.
@@ -300,13 +296,13 @@ public class Get extends Task {
* <p>In this situation, the if-modified-since header is set so that the file is * <p>In this situation, the if-modified-since header is set so that the file is
* only fetched if it is newer than the local file (or there is no local file) * only fetched if it is newer than the local file (or there is no local file)
* This flag is only valid on HTTP connections, it is ignored in other cases. * This flag is only valid on HTTP connections, it is ignored in other cases.
* When the flag is set, the local copy of the downloaded file will also
* have its timestamp set to the remote file time.
* When the flag is set, the local copy of the downloaded file will also
* have its timestamp set to the remote file time.
* <br> * <br>
* Note that remote files of date 1/1/1970 (GMT) are treated as 'no timestamp', and * Note that remote files of date 1/1/1970 (GMT) are treated as 'no timestamp', and
* web servers often serve files with a timestamp in the future by replacing their timestamp * web servers often serve files with a timestamp in the future by replacing their timestamp
* with that of the current time. Also, inter-computer clock differences can cause no end of
* grief.
* with that of the current time. Also, inter-computer clock differences can cause no end of
* grief.
* @param v "true" to enable file time fetching * @param v "true" to enable file time fetching
*/ */
public void setUseTimestamp(boolean v) { public void setUseTimestamp(boolean v) {
@@ -334,95 +330,92 @@ public class Get extends Task {
this.pword = p; this.pword = p;
} }
/*********************************************************************
* BASE 64 encoding of a String or an array of bytes.
*
* Based on RFC 1421.
*
* @author
* Unknown
* @author
* <a HREF="gg@grtmail.com">Gautam Guliani</a>
*********************************************************************/
class Base64Converter
{
public final char [ ] alphabet = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', // 0 to 7
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', // 8 to 15
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', // 16 to 23
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', // 24 to 31
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', // 32 to 39
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', // 40 to 47
'w', 'x', 'y', 'z', '0', '1', '2', '3', // 48 to 55
'4', '5', '6', '7', '8', '9', '+', '/' }; // 56 to 63
public String encode ( String s )
{
return encode ( s.getBytes ( ) );
}
public String encode ( byte [ ] octetString )
{
int bits24;
int bits6;
char [ ] out
= new char [ ( ( octetString.length - 1 ) / 3 + 1 ) * 4 ];
int outIndex = 0;
int i = 0;
while ( ( i + 3 ) <= octetString.length ) {
// store the octets
bits24=( octetString [ i++ ] & 0xFF ) << 16;
bits24 |=( octetString [ i++ ] & 0xFF ) << 8;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x00000FC0 ) >> 6;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0000003F );
out [ outIndex++ ] = alphabet [ bits6 ];
}
if ( octetString.length - i == 2 )
{
// store the octets
bits24 = ( octetString [ i ] & 0xFF ) << 16;
bits24 |=( octetString [ i + 1 ] & 0xFF ) << 8;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x00000FC0 ) >> 6;
out [ outIndex++ ] = alphabet [ bits6 ];
// padding
out [ outIndex++ ] = '=';
}
else if ( octetString.length - i == 1 )
{
// store the octets
bits24 = ( octetString [ i ] & 0xFF ) << 16;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
// padding
out [ outIndex++ ] = '=';
out [ outIndex++ ] = '=';
}
return new String ( out );
}
/*********************************************************************
* BASE 64 encoding of a String or an array of bytes.
*
* Based on RFC 1421.
*
* @author
* Unknown
* @author
* <a HREF="gg@grtmail.com">Gautam Guliani</a>
*********************************************************************/
class Base64Converter
{
public final char [ ] alphabet = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', // 0 to 7
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', // 8 to 15
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', // 16 to 23
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', // 24 to 31
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', // 32 to 39
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', // 40 to 47
'w', 'x', 'y', 'z', '0', '1', '2', '3', // 48 to 55
'4', '5', '6', '7', '8', '9', '+', '/' }; // 56 to 63
public String encode ( String s )
{
return encode ( s.getBytes ( ) );
}
}
public String encode ( byte [ ] octetString )
{
int bits24;
int bits6;
char [ ] out
= new char [ ( ( octetString.length - 1 ) / 3 + 1 ) * 4 ];
int outIndex = 0;
int i = 0;
while ( ( i + 3 ) <= octetString.length ) {
// store the octets
bits24=( octetString [ i++ ] & 0xFF ) << 16;
bits24 |=( octetString [ i++ ] & 0xFF ) << 8;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x00000FC0 ) >> 6;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0000003F );
out [ outIndex++ ] = alphabet [ bits6 ];
}
if ( octetString.length - i == 2 )
{
// store the octets
bits24 = ( octetString [ i ] & 0xFF ) << 16;
bits24 |=( octetString [ i + 1 ] & 0xFF ) << 8;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x00000FC0 ) >> 6;
out [ outIndex++ ] = alphabet [ bits6 ];
// padding
out [ outIndex++ ] = '=';
}
else if ( octetString.length - i == 1 )
{
// store the octets
bits24 = ( octetString [ i ] & 0xFF ) << 16;
bits6=( bits24 & 0x00FC0000 )>> 18;
out [ outIndex++ ] = alphabet [ bits6 ];
bits6 = ( bits24 & 0x0003F000 ) >> 12;
out [ outIndex++ ] = alphabet [ bits6 ];
// padding
out [ outIndex++ ] = '=';
out [ outIndex++ ] = '=';
}
return new String ( out );
}
}
} }
Magesh Umasankar