package org.apache.commons.io.input.compatibility;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.text.MessageFormat;
import java.util.regex.Pattern;
import java.io.Reader;
import java.io.StringReader;
import java.net.URL;
import java.net.URLConnection;
/**
* Character stream that handles all the necessary Voodo to figure out the
* charset encoding of the XML document within the stream.
* <p>
* IMPORTANT: This class is not related in any way to the org.xml.sax.XMLReader.
* This one IS a character stream.
* <p>
* All this has to be done without consuming characters from the stream, if not
* the XML parser will not recognized the document as a valid XML. This is not
* 100% true, but it's close enough (UTF-8 BOM is not handled by all parsers
* right now, XmlStreamReader handles it and things work in all parsers).
* <p>
* The XmlStreamReader class handles the charset encoding of XML documents in
* Files, raw streams and HTTP streams by offering a wide set of constructors.
* <p>
* By default the charset encoding detection is lenient, the constructor with
* the lenient flag can be used for an script (following HTTP MIME and XML
* specifications). All this is nicely explained by Mark Pilgrim in his blog, <a
* href="http://diveintomark.org/archives/2004/02/13/xml-media-types">
* Determining the character encoding of a feed</a>.
* <p>
* Originally developed for <a href="http://rome.dev.java.net">ROME</a> under
* Apache License 2.0.
*
* @version $Id$
* @see XmlStreamWriter
*/
public class XmlStreamReader extends Reader {
private static final int BUFFER_SIZE = 4096;
private static final String UTF_8 = "UTF-8";
private static final String US_ASCII = "US-ASCII";
private static final String UTF_16BE = "UTF-16BE";
private static final String UTF_16LE = "UTF-16LE";
private static final String UTF_16 = "UTF-16";
private static final String UTF_32BE = "UTF-32BE";
private static final String UTF_32LE = "UTF-32LE";
private static final String UTF_32 = "UTF-32";
private static final String EBCDIC = "CP1047";
private static String staticDefaultEncoding = null;
private Reader reader;
private String encoding;
private String defaultEncoding;
/**
* Sets the default encoding to use if none is set in HTTP content-type, XML
* prolog and the rules based on content-type are not adequate.
* <p>
* If it is set to NULL the content-type based rules are used.
* <p>
* By default it is NULL.
*
* @param encoding charset encoding to default to.
*/
public static void setDefaultEncoding(String encoding) {
XmlStreamReader.staticDefaultEncoding = encoding;
}
/**
* Returns the default encoding to use if none is set in HTTP content-type,
* XML prolog and the rules based on content-type are not adequate.
* <p>
* If it is NULL the content-type based rules are used.
*
* @return the default encoding to use.
*/
public static String getDefaultEncoding() {
return XmlStreamReader.staticDefaultEncoding;
}
/**
* Creates a Reader for a File.
* <p>
* It looks for the UTF-8 BOM first, if none sniffs the XML prolog charset,
* if this is also missing defaults to UTF-8.
* <p>
* It does a lenient charset encoding detection, check the constructor with
* the lenient parameter for details.
*
* @param file File to create a Reader from.
* @throws IOException thrown if there is a problem reading the file.
*/
public XmlStreamReader(File file) throws IOException {
this(new java.io.FileInputStream(file));
}
/**
* Creates a Reader for a raw InputStream.
* <p>
* It follows the same logic used for files.
* <p>
* It does a lenient charset encoding detection, check the constructor with
* the lenient parameter for details.
*
* @param is InputStream to create a Reader from.
* @throws IOException thrown if there is a problem reading the stream.
*/
public XmlStreamReader(InputStream is) throws IOException {
this(is, true);
}
/**
* Creates a Reader for a raw InputStream.
* <p>
* It follows the same logic used for files.
* <p>
* If lenient detection is indicated and the detection above fails as per
* specifications it then attempts the following:
* <p>
* If the content type was 'text/html' it replaces it with 'text/xml' and
* tries the detection again.
* <p>
* Else if the XML prolog had a charset encoding that encoding is used.
* <p>
* Else if the content type had a charset encoding that encoding is used.
* <p>
* Else 'UTF-8' is used.
* <p>
* If lenient detection is indicated an XmlStreamReaderException is never
* thrown.
*
* @param is InputStream to create a Reader from.
* @param lenient indicates if the charset encoding detection should be
* relaxed.
* @throws IOException thrown if there is a problem reading the stream.
* @throws XmlStreamReaderException thrown if the charset encoding could not
* be determined according to the specs.
*/
public XmlStreamReader(InputStream is ,boolean lenient) throws IOException , XmlStreamReaderException {
defaultEncoding = XmlStreamReader.staticDefaultEncoding;
try {
doRawStream(is, lenient);
} catch (XmlStreamReaderException ex) {
if (!lenient) {
throw ex;
} else {
doLenientDetection(null, ex);
}
}
}
/**
* Creates a Reader using the InputStream of a URL.
* <p>
* If the URL is not of type HTTP and there is not 'content-type' header in
* the fetched data it uses the same logic used for Files.
* <p>
* If the URL is a HTTP Url or there is a 'content-type' header in the
* fetched data it uses the same logic used for an InputStream with
* content-type.
* <p>
* It does a lenient charset encoding detection, check the constructor with
* the lenient parameter for details.
*
* @param url URL to create a Reader from.
* @throws IOException thrown if there is a problem reading the stream of
* the URL.
*/
public XmlStreamReader(URL url) throws IOException {
this(url.openConnection());
}
/**
* Creates a Reader using the InputStream of a URLConnection.
* <p>
* If the URLConnection is not of type HttpURLConnection and there is not
* 'content-type' header in the fetched data it uses the same logic used for
* files.
* <p>
* If the URLConnection is a HTTP Url or there is a 'content-type' header in
* the fetched data it uses the same logic used for an InputStream with
* content-type.
* <p>
* It does a lenient charset encoding detection, check the constructor with
* the lenient parameter for details.
*
* @param conn URLConnection to create a Reader from.
* @throws IOException thrown if there is a problem reading the stream of
* the URLConnection.
*/
public XmlStreamReader(URLConnection conn) throws IOException {
defaultEncoding = XmlStreamReader.staticDefaultEncoding;
boolean lenient = true;
if (conn instanceof java.net.HttpURLConnection) {
try {
doHttpStream(conn.getInputStream(), conn.getContentType(), lenient);
} catch (XmlStreamReaderException ex) {
doLenientDetection(conn.getContentType(), ex);
}
} else if ((conn.getContentType()) != null) {
try {
doHttpStream(conn.getInputStream(), conn.getContentType(), lenient);
} catch (XmlStreamReaderException ex) {
doLenientDetection(conn.getContentType(), ex);
}
} else {
try {
doRawStream(conn.getInputStream(), lenient);
} catch (XmlStreamReaderException ex) {
doLenientDetection(null, ex);
}
}
}
/**
* Creates a Reader using an InputStream an the associated content-type
* header.
* <p>
* First it checks if the stream has BOM. If there is not BOM checks the
* content-type encoding. If there is not content-type encoding checks the
* XML prolog encoding. If there is not XML prolog encoding uses the default
* encoding mandated by the content-type MIME type.
* <p>
* It does a lenient charset encoding detection, check the constructor with
* the lenient parameter for details.
*
* @param is InputStream to create the reader from.
* @param httpContentType content-type header to use for the resolution of
* the charset encoding.
* @throws IOException thrown if there is a problem reading the file.
*/
public XmlStreamReader(InputStream is ,String httpContentType) throws IOException {
this(is, httpContentType, true);
}
/**
* Creates a Reader using an InputStream an the associated content-type
* header. This constructor is lenient regarding the encoding detection.
* <p>
* First it checks if the stream has BOM. If there is not BOM checks the
* content-type encoding. If there is not content-type encoding checks the
* XML prolog encoding. If there is not XML prolog encoding uses the default
* encoding mandated by the content-type MIME type.
* <p>
* If lenient detection is indicated and the detection above fails as per
* specifications it then attempts the following:
* <p>
* If the content type was 'text/html' it replaces it with 'text/xml' and
* tries the detection again.
* <p>
* Else if the XML prolog had a charset encoding that encoding is used.
* <p>
* Else if the content type had a charset encoding that encoding is used.
* <p>
* Else 'UTF-8' is used.
* <p>
* If lenient detection is indicated an XmlStreamReaderException is never
* thrown.
*
* @param is InputStream to create the reader from.
* @param httpContentType content-type header to use for the resolution of
* the charset encoding.
* @param lenient indicates if the charset encoding detection should be
* relaxed.
* @throws IOException thrown if there is a problem reading the file.
* @throws XmlStreamReaderException thrown if the charset encoding could not
* be determined according to the specs.
*/
public XmlStreamReader(InputStream is ,String httpContentType ,boolean lenient ,String defaultEncoding) throws IOException , XmlStreamReaderException {
this.defaultEncoding = defaultEncoding == null ? XmlStreamReader.staticDefaultEncoding : defaultEncoding;
try {
doHttpStream(is, httpContentType, lenient);
} catch (XmlStreamReaderException ex) {
if (!lenient) {
throw ex;
} else {
doLenientDetection(httpContentType, ex);
}
}
}
/**
* Creates a Reader using an InputStream an the associated content-type
* header. This constructor is lenient regarding the encoding detection.
* <p>
* First it checks if the stream has BOM. If there is not BOM checks the
* content-type encoding. If there is not content-type encoding checks the
* XML prolog encoding. If there is not XML prolog encoding uses the default
* encoding mandated by the content-type MIME type.
* <p>
* If lenient detection is indicated and the detection above fails as per
* specifications it then attempts the following:
* <p>
* If the content type was 'text/html' it replaces it with 'text/xml' and
* tries the detection again.
* <p>
* Else if the XML prolog had a charset encoding that encoding is used.
* <p>
* Else if the content type had a charset encoding that encoding is used.
* <p>
* Else 'UTF-8' is used.
* <p>
* If lenient detection is indicated an XmlStreamReaderException is never
* thrown.
*
* @param is InputStream to create the reader from.
* @param httpContentType content-type header to use for the resolution of
* the charset encoding.
* @param lenient indicates if the charset encoding detection should be
* relaxed.
* @throws IOException thrown if there is a problem reading the file.
* @throws XmlStreamReaderException thrown if the charset encoding could not
* be determined according to the specs.
*/
public XmlStreamReader(InputStream is ,String httpContentType ,boolean lenient) throws IOException , XmlStreamReaderException {
this(is, httpContentType, lenient, null);
}
private void doLenientDetection(String httpContentType, XmlStreamReaderException ex) throws IOException {
if (httpContentType != null) {
if (httpContentType.startsWith("text/html")) {
httpContentType = httpContentType.substring("text/html".length());
httpContentType = "text/xml" + httpContentType;
try {
doHttpStream(ex.getInputStream(), httpContentType, true);
ex = null;
} catch (XmlStreamReaderException ex2) {
ex = ex2;
}
}
}
if (ex != null) {
String encoding = ex.getXmlEncoding();
if (encoding == null) {
encoding = ex.getContentTypeEncoding();
}
if (encoding == null) {
encoding = (defaultEncoding) == null ? UTF_8 : defaultEncoding;
}
prepareReader(ex.getInputStream(), encoding);
}
}
/**
* Returns the charset encoding of the XmlStreamReader.
*
* @return charset encoding.
*/
public String getEncoding() {
return encoding;
}
@Override
public int read(char[] buf, int offset, int len) throws IOException {
return reader.read(buf, offset, len);
}
/**
* Closes the XmlStreamReader stream.
*
* @throws IOException thrown if there was a problem closing the stream.
*/
@Override
public void close() throws IOException {
reader.close();
}
private void doRawStream(InputStream is, boolean lenient) throws IOException {
BufferedInputStream pis = new BufferedInputStream(is , BUFFER_SIZE);
String bomEnc = XmlStreamReader.getBOMEncoding(pis);
String xmlGuessEnc = XmlStreamReader.getXMLGuessEncoding(pis);
String xmlEnc = XmlStreamReader.getXmlProlog(pis, xmlGuessEnc);
String encoding = calculateRawEncoding(bomEnc, xmlGuessEnc, xmlEnc, pis);
prepareReader(pis, encoding);
}
private void doHttpStream(InputStream is, String httpContentType, boolean lenient) throws IOException {
BufferedInputStream pis = new BufferedInputStream(is , BUFFER_SIZE);
String cTMime = XmlStreamReader.getContentTypeMime(httpContentType);
String cTEnc = XmlStreamReader.getContentTypeEncoding(httpContentType);
String bomEnc = XmlStreamReader.getBOMEncoding(pis);
String xmlGuessEnc = XmlStreamReader.getXMLGuessEncoding(pis);
String xmlEnc = XmlStreamReader.getXmlProlog(pis, xmlGuessEnc);
String encoding = calculateHttpEncoding(cTMime, cTEnc, bomEnc, xmlGuessEnc, xmlEnc, pis, lenient);
prepareReader(pis, encoding);
}
private void prepareReader(InputStream is, String encoding) throws IOException {
reader = new InputStreamReader(is , encoding);
this.encoding = encoding;
}
String calculateRawEncoding(String bomEnc, String xmlGuessEnc, String xmlEnc, InputStream is) throws IOException {
String encoding;
if (bomEnc == null) {
if ((xmlGuessEnc == null) || (xmlEnc == null)) {
encoding = (defaultEncoding) == null ? UTF_8 : defaultEncoding;
} else if ((xmlEnc.equals(UTF_16)) && ((xmlGuessEnc.equals(UTF_16BE)) || (xmlGuessEnc.equals(UTF_16LE)))) {
encoding = xmlGuessEnc;
} else if ((xmlEnc.equals(UTF_32)) && ((xmlGuessEnc.equals(UTF_32BE)) || (xmlGuessEnc.equals(UTF_32LE)))) {
encoding = xmlGuessEnc;
} else {
encoding = xmlEnc;
}
} else if (bomEnc.equals(UTF_8)) {
if ((xmlGuessEnc != null) && (!(xmlGuessEnc.equals(UTF_8)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
if ((xmlEnc != null) && (!(xmlEnc.equals(UTF_8)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
encoding = UTF_8;
} else if ((bomEnc.equals(UTF_16BE)) || (bomEnc.equals(UTF_16LE))) {
if ((xmlGuessEnc != null) && (!(xmlGuessEnc.equals(bomEnc)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
if (((xmlEnc != null) && (!(xmlEnc.equals(UTF_16)))) && (!(xmlEnc.equals(bomEnc)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
encoding = bomEnc;
} else if ((bomEnc.equals(UTF_32BE)) || (bomEnc.equals(UTF_32LE))) {
if ((xmlGuessEnc != null) && (!(xmlGuessEnc.equals(bomEnc)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
if (((xmlEnc != null) && (!(xmlEnc.equals(UTF_32)))) && (!(xmlEnc.equals(bomEnc)))) {
throw new XmlStreamReaderException(RAW_EX_1.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
encoding = bomEnc;
} else {
throw new XmlStreamReaderException(RAW_EX_2.format(new java.lang.Object[]{ bomEnc , xmlGuessEnc , xmlEnc }) , bomEnc , xmlGuessEnc , xmlEnc , is);
}
return encoding;
}
String calculateHttpEncoding(String cTMime, String cTEnc, String bomEnc, String xmlGuessEnc, String xmlEnc, InputStream is, boolean lenient) throws IOException {
String encoding;
if (lenient & (xmlEnc != null)) {
encoding = xmlEnc;
} else {
boolean appXml = XmlStreamReader.isAppXml(cTMime);
boolean textXml = XmlStreamReader.isTextXml(cTMime);
if (appXml || textXml) {
if (cTEnc == null) {
if (appXml) {
encoding = calculateRawEncoding(bomEnc, xmlGuessEnc, xmlEnc, is);
} else {
encoding = (defaultEncoding) == null ? US_ASCII : defaultEncoding;
}
} else if ((bomEnc != null) && ((cTEnc.equals(UTF_16BE)) || (cTEnc.equals(UTF_16LE)))) {
throw new XmlStreamReaderException(HTTP_EX_1.format(new java.lang.Object[]{ cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc }) , cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc , is);
} else if (cTEnc.equals(UTF_16)) {
if ((bomEnc != null) && (bomEnc.startsWith(UTF_16))) {
encoding = bomEnc;
} else {
throw new XmlStreamReaderException(HTTP_EX_2.format(new java.lang.Object[]{ cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc }) , cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc , is);
}
} else if ((bomEnc != null) && ((cTEnc.equals(UTF_32BE)) || (cTEnc.equals(UTF_32LE)))) {
throw new XmlStreamReaderException(HTTP_EX_1.format(new java.lang.Object[]{ cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc }) , cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc , is);
} else if (cTEnc.equals(UTF_32)) {
if ((bomEnc != null) && (bomEnc.startsWith(UTF_32))) {
encoding = bomEnc;
} else {
throw new XmlStreamReaderException(HTTP_EX_2.format(new java.lang.Object[]{ cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc }) , cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc , is);
}
} else {
encoding = cTEnc;
}
} else {
throw new XmlStreamReaderException(HTTP_EX_3.format(new java.lang.Object[]{ cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc }) , cTMime , cTEnc , bomEnc , xmlGuessEnc , xmlEnc , is);
}
}
return encoding;
}
static String getContentTypeMime(String httpContentType) {
String mime = null;
if (httpContentType != null) {
int i = httpContentType.indexOf(";");
mime = (i == (-1) ? httpContentType : httpContentType.substring(0, i)).trim();
}
return mime;
}
private static final Pattern CHARSET_PATTERN = Pattern.compile("charset=[\"\']?([.[^; \"\']]*)[\"\']?");
static String getContentTypeEncoding(String httpContentType) {
String encoding = null;
if (httpContentType != null) {
int i = httpContentType.indexOf(";");
if (i > (-1)) {
String postMime = httpContentType.substring((i + 1));
Matcher m = CHARSET_PATTERN.matcher(postMime);
encoding = m.find() ? m.group(1) : null;
encoding = encoding != null ? encoding.toUpperCase() : null;
}
}
return encoding;
}
static String getBOMEncoding(BufferedInputStream is) throws IOException {
String encoding = null;
int[] bytes = new int[3];
is.mark(3);
bytes[0] = is.read();
bytes[1] = is.read();
bytes[2] = is.read();
if (((bytes[0]) == 254) && ((bytes[1]) == 255)) {
encoding = UTF_16BE;
is.reset();
is.read();
is.read();
} else if (((bytes[0]) == 255) && ((bytes[1]) == 254)) {
encoding = UTF_16LE;
is.reset();
is.read();
is.read();
} else if ((((bytes[0]) == 239) && ((bytes[1]) == 187)) && ((bytes[2]) == 191)) {
encoding = UTF_8;
} else {
is.reset();
}
return encoding;
}
private static String getXMLGuessEncoding(BufferedInputStream is) throws IOException {
String encoding = null;
int[] bytes = new int[4];
is.mark(4);
bytes[0] = is.read();
bytes[1] = is.read();
bytes[2] = is.read();
bytes[3] = is.read();
is.reset();
if (((((bytes[0]) == 0) && ((bytes[1]) == 60)) && ((bytes[2]) == 0)) && ((bytes[3]) == 63)) {
encoding = UTF_16BE;
} else if (((((bytes[0]) == 60) && ((bytes[1]) == 0)) && ((bytes[2]) == 63)) && ((bytes[3]) == 0)) {
encoding = UTF_16LE;
} else if (((((bytes[0]) == 60) && ((bytes[1]) == 63)) && ((bytes[2]) == 120)) && ((bytes[3]) == 109)) {
encoding = UTF_8;
} else if (((((bytes[0]) == 76) && ((bytes[1]) == 111)) && ((bytes[2]) == 167)) && ((bytes[3]) == 148)) {
encoding = EBCDIC;
}
return encoding;
}
public static final Pattern ENCODING_PATTERN = Pattern.compile("<\\?xml.*encoding[\\s]*=[\\s]*((?:\".[^\"]*\")|(?:\'.[^\']*\'))", Pattern.MULTILINE);
private static String getXmlProlog(BufferedInputStream is, String guessedEnc) throws IOException {
String encoding = null;
if (guessedEnc != null) {
byte[] bytes = new byte[BUFFER_SIZE];
is.mark(BUFFER_SIZE);
int offset = 0;
int max = BUFFER_SIZE;
int c = is.read(bytes, offset, max);
int firstGT = -1;
String xmlProlog = null;
while (((c != (-1)) && (firstGT == (-1))) && (offset < (BUFFER_SIZE))) {
offset += c;
max -= c;
c = is.read(bytes, offset, max);
xmlProlog = new String(bytes , 0 , offset , guessedEnc);
firstGT = xmlProlog.indexOf('>');
}
if (firstGT == (-1)) {
if (c == (-1)) {
throw new IOException("Unexpected end of XML stream");
} else {
throw new IOException((("XML prolog or ROOT element not found on first " + offset) + " bytes"));
}
}
int bytesRead = offset;
if (bytesRead > 0) {
is.reset();
BufferedReader bReader = new BufferedReader(new StringReader(xmlProlog.substring(0, (firstGT + 1))));
StringBuffer prolog = new StringBuffer();
String line = bReader.readLine();
while (line != null) {
prolog.append(line);
line = bReader.readLine();
}
Matcher m = ENCODING_PATTERN.matcher(prolog);
if (m.find()) {
encoding = m.group(1).toUpperCase();
encoding = encoding.substring(1, ((encoding.length()) - 1));
}
}
}
return encoding;
}
static boolean isAppXml(String mime) {
return (mime != null) && ((((mime.equals("application/xml")) || (mime.equals("application/xml-dtd"))) || (mime.equals("application/xml-external-parsed-entity"))) || ((mime.startsWith("application/")) && (mime.endsWith("+xml"))));
}
static boolean isTextXml(String mime) {
return (mime != null) && (((mime.equals("text/xml")) || (mime.equals("text/xml-external-parsed-entity"))) || ((mime.startsWith("text/")) && (mime.endsWith("+xml"))));
}
private static final MessageFormat RAW_EX_1 = new MessageFormat("Invalid encoding, BOM [{0}] XML guess [{1}] XML prolog [{2}] encoding mismatch");
private static final MessageFormat RAW_EX_2 = new MessageFormat("Invalid encoding, BOM [{0}] XML guess [{1}] XML prolog [{2}] unknown BOM");
private static final MessageFormat HTTP_EX_1 = new MessageFormat("Invalid encoding, CT-MIME [{0}] CT-Enc [{1}] BOM [{2}] XML guess [{3}] XML prolog [{4}], BOM must be NULL");
private static final MessageFormat HTTP_EX_2 = new MessageFormat("Invalid encoding, CT-MIME [{0}] CT-Enc [{1}] BOM [{2}] XML guess [{3}] XML prolog [{4}], encoding mismatch");
private static final MessageFormat HTTP_EX_3 = new MessageFormat("Invalid encoding, CT-MIME [{0}] CT-Enc [{1}] BOM [{2}] XML guess [{3}] XML prolog [{4}], Invalid MIME");
}