RFC2047Utilities.java
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package org.openspcoop2.utils.transport.http;
import java.util.List;
import javax.mail.internet.MimeUtility;
import org.openspcoop2.utils.UtilsException;
import org.openspcoop2.utils.resources.Charset;
/**
* RFC2047Utilities
*
* @author Andrea Poli (apoli@link.it)
* @author $Author$
* @version $Rev$, $Date$
*/
public class RFC2047Utilities {
public static void main(String[] args) throws Exception {
test();
}
public static void test() throws Exception {
// Test String con caratteri appartenenti all'ISO ISO_8859_1
String string_iso_8859_1 = "für psychisch";
String string_us_ascii = "fur psychisch";
boolean v = isAllCharactersInCharset(string_iso_8859_1, Charset.ISO_8859_1);
System.out.println("IS ["+string_iso_8859_1+"] in CHARSET ISO_8859_1 ?: "+v);
if(!v) {
throw new Exception("Riscontrato valore diverso da quello atteso");
}
v = isAllCharactersInCharset(string_iso_8859_1, Charset.US_ASCII);
System.out.println("IS ["+string_iso_8859_1+"] in CHARSET US_ASCII ?: "+v);
if(v) {
throw new Exception("Riscontrato valore diverso da quello atteso");
}
v = isAllCharactersInCharset(string_us_ascii, Charset.ISO_8859_1);
System.out.println("IS ["+string_us_ascii+"] in CHARSET ISO_8859_1 ?: "+v);
if(!v) {
throw new Exception("Riscontrato valore diverso da quello atteso");
}
v = isAllCharactersInCharset(string_us_ascii, Charset.US_ASCII);
System.out.println("IS ["+string_us_ascii+"] in CHARSET US_ASCII ?: "+v);
if(!v) {
throw new Exception("Riscontrato valore diverso da quello atteso");
}
System.out.println("\n*** RFC2047 ISO_8859_1 B ***");
String var_RFC2047_ISO_8859_1_B = encode(string_iso_8859_1, Charset.ISO_8859_1, RFC2047Encoding.B);
System.out.println("["+string_iso_8859_1+"] encoded in RFC2047("+Charset.ISO_8859_1+","+RFC2047Encoding.B+"): "+var_RFC2047_ISO_8859_1_B);
String decode = decode(var_RFC2047_ISO_8859_1_B);
System.out.println("Decode: "+decode);
if(!string_iso_8859_1.equals(decode)) {
throw new Exception("Valore decodificato diverso dal sorgente");
}
System.out.println("\n*** RFC2047 ISO_8859_1 Q ***");
String var_RFC2047_ISO_8859_1_Q = encode(string_iso_8859_1, Charset.ISO_8859_1, RFC2047Encoding.Q);
System.out.println("["+string_iso_8859_1+"] encoded in RFC2047("+Charset.ISO_8859_1+","+RFC2047Encoding.Q+"): "+var_RFC2047_ISO_8859_1_Q);
decode = decode(var_RFC2047_ISO_8859_1_Q);
System.out.println("Decode: "+decode);
if(!string_iso_8859_1.equals(decode)) {
throw new Exception("Valore decodificato diverso dal sorgente");
}
System.out.println("\n*** RFC2047 US_ASCII B ***");
String var_RFC2047_US_ASCII_B = encode(string_iso_8859_1, Charset.US_ASCII, RFC2047Encoding.B);
System.out.println("["+string_iso_8859_1+"] encoded in RFC2047("+Charset.US_ASCII+","+RFC2047Encoding.B+"): "+var_RFC2047_US_ASCII_B);
decode = decode(var_RFC2047_US_ASCII_B);
System.out.println("Decode: "+decode);
if(!string_iso_8859_1.equals(decode)) {
throw new Exception("Valore decodificato diverso dal sorgente");
}
System.out.println("\n*** RFC2047 US_ASCII Q ***");
String var_RFC2047_US_ASCII_Q = encode(string_iso_8859_1, Charset.US_ASCII, RFC2047Encoding.Q);
System.out.println("["+string_iso_8859_1+"] encoded in RFC2047("+Charset.US_ASCII+","+RFC2047Encoding.Q+"): "+var_RFC2047_US_ASCII_Q);
decode = decode(var_RFC2047_US_ASCII_Q);
System.out.println("Decode: "+decode);
if(!string_iso_8859_1.equals(decode)) {
throw new Exception("Valore decodificato diverso dal sorgente");
}
}
public static String encode(String value,Charset charset,RFC2047Encoding encoding) throws UtilsException{
try{
return MimeUtility.encodeWord(value,charset.getValue(),encoding.name());
}catch(Exception e){
throw new UtilsException(e.getMessage(),e);
}
}
public static String decode(String value) throws UtilsException{
try{
return MimeUtility.decodeWord(value);
}catch(Exception e){
throw new UtilsException(e.getMessage(),e);
}
}
public static boolean isAllCharactersInCharset(String value,Charset charset) throws UtilsException{
try{
java.nio.charset.CharsetEncoder encoder =
java.nio.charset.Charset.forName(charset.getValue()).newEncoder();
return encoder.canEncode(value);
}catch(Exception e){
throw new UtilsException(e.getMessage(),e);
}
}
public static void validHeader(String key, List<String> values) throws UtilsException{
if(values!=null && !values.isEmpty()) {
for (String value : values) {
validHeader(key, value);
}
}
}
public static void validHeader(String key, String value) throws UtilsException{
// jdk/openjdk/6-b14/sun/net/www/protocol/http/HttpURLConnection.java
char LF = '\n';
int index = key.indexOf(LF);
if (index != -1) {
throw new UtilsException("Found illegal character(s) in message header field ["+key+"]");
}
else {
if (value == null) {
return;
}
index = value.indexOf(LF);
while (index != -1) {
index++;
if (index < value.length()) {
char c = value.charAt(index);
if ((c==' ') || (c=='\t')) {
// ok, check the next occurrence
index = value.indexOf(LF, index);
continue;
}
}
throw new UtilsException("Found Illegal character(s) in message header ["+key+"]. Found value: ["+value+"]");
}
}
}
}