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A PHP engine implemented in 100% Java
/*
* Copyright (c) 1998-2012 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.lib.i18n;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.mail.Header;
import javax.mail.MessagingException;
import javax.mail.internet.InternetHeaders;
import javax.mail.internet.MimeUtility;
import com.caucho.quercus.UnimplementedException;
import com.caucho.quercus.env.ArrayValue;
import com.caucho.quercus.env.ArrayValueImpl;
import com.caucho.quercus.env.BooleanValue;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.env.Value;
import com.caucho.util.L10N;
public class QuercusMimeUtility
{
private static final L10N L = new L10N(QuercusMimeUtility.class);
private static final Logger log
= Logger.getLogger(QuercusMimeUtility.class.getName());
/*
* Returns an array of decoded Mime headers/fields.
*/
public static Value decodeMimeHeaders(Env env,
StringValue encodedHeaders,
String charset)
throws UnsupportedEncodingException
{
ArrayValue headers = new ArrayValueImpl();
try {
Enumeration enumeration
= new InternetHeaders(encodedHeaders.toInputStream()).getAllHeaders();
while (enumeration.hasMoreElements()) {
Header header = enumeration.nextElement();
StringValue name
= QuercusMimeUtility.decodeMime(env, header.getName(), charset);
StringValue val
= QuercusMimeUtility.decodeMime(env, header.getValue(), charset);
Value headerName;
if ((headerName = headers.containsKey(name)) == null) {
headers.put(name, val);
continue;
}
ArrayValue inner;
if (headerName.isArray()) {
inner = headerName.toArrayValue(env);
}
else {
inner = new ArrayValueImpl();
inner.put(headerName);
}
inner.put(val);
headers.put(name, inner);
}
return headers;
} catch (MessagingException e) {
log.log(Level.FINE, e.getMessage(), e);
env.warning(e.getMessage());
return BooleanValue.FALSE;
}
}
/**
* Returns decoded Mime header/field.
*/
public static StringValue decodeMime(Env env,
CharSequence word,
String charset)
throws UnsupportedEncodingException
{
String decodedStr = MimeUtility.decodeText(word.toString());
StringValue str
= env.createString(MimeUtility.unfold(decodedStr));
return str.toBinaryValue(charset);
}
public static Value encodeMime(Env env,
StringValue name,
StringValue value,
String inCharset,
String outCharset,
String scheme)
throws UnsupportedEncodingException
{
return encodeMime(env,
name,
value,
inCharset,
outCharset,
scheme,
"\r\n",
76);
}
/**
* Encodes a MIME header.
*
* XXX: preferences
*
* @param field_name header field name
* @param field_value header field value
* @param preferences
* @return encoded mime header
*/
public static StringValue encodeMime(Env env,
StringValue name,
StringValue value,
String inCharset,
String outCharset,
String scheme,
String lineBreakChars,
int lineLength)
throws UnsupportedEncodingException
{
Decoder decoder = Decoder.create(inCharset);
CharSequence nameUnicode = decoder.decode(env, name);
decoder.reset();
String valueUnicode = decoder.decode(env, value).toString();
StringValue sb = env.createUnicodeBuilder();
sb.append(UnicodeUtility.encode(env, nameUnicode, outCharset));
sb.append(':');
sb.append(' ');
String word = encodeMimeWord(valueUnicode.toString(),
outCharset,
scheme,
lineBreakChars,
lineLength);
sb.append(MimeUtility.fold(sb.length(), word));
return sb;
}
public static String encodeMimeWord(String value,
String charset,
String scheme,
String lineBreakChars,
int lineLength)
throws UnsupportedEncodingException
{
if (lineLength != 76)
throw new UnimplementedException("Mime line length option");
if (! lineBreakChars.equals("\r\n")) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < lineBreakChars.length(); i++) {
char ch = lineBreakChars.charAt(i);
String hex = Integer.toHexString(ch);
sb.append("0x");
sb.append(hex);
}
throw new UnimplementedException(L.l("Mime line break option: '{0}'", sb));
}
return MimeUtility.encodeWord(value, charset, scheme);
}
}