/**
* Split the very first line (Content-Type value) in 3 Strings
*
* @return the array of 3 Strings
*/
private static String[] splitHeaderContentType(String sb) {
int aStart;
int aEnd;
int bStart;
int bEnd;
int cStart;
int cEnd;
aStart = HttpPostBodyUtil.findNonWhitespace(sb, 0);
aEnd = sb.indexOf(';');
if (aEnd == -1) {
return new String[] {sb, "", ""};
}
bStart = HttpPostBodyUtil.findNonWhitespace(sb, aEnd + 1);
if (sb.charAt(aEnd - 1) == ' ') {
aEnd--;
}
bEnd = sb.indexOf(';', bStart);
if (bEnd == -1) {
bEnd = HttpPostBodyUtil.findEndOfString(sb);
return new String[] {sb.substring(aStart, aEnd), sb.substring(bStart, bEnd), ""};
}
cStart = HttpPostBodyUtil.findNonWhitespace(sb, bEnd + 1);
if (sb.charAt(bEnd - 1) == ' ') {
bEnd--;
}
cEnd = HttpPostBodyUtil.findEndOfString(sb);
return new String[] {
sb.substring(aStart, aEnd), sb.substring(bStart, bEnd), sb.substring(cStart, cEnd)
};
}
/**
* Find the next Multipart Delimiter
*
* @param delimiter delimiter to find
* @param dispositionStatus the next status if the delimiter is a start
* @param closeDelimiterStatus the next status if the delimiter is a close delimiter
* @return the next InterfaceHttpData if any
* @throws ErrorDataDecoderException
*/
private InterfaceHttpData findMultipartDelimiter(
String delimiter, MultiPartStatus dispositionStatus, MultiPartStatus closeDelimiterStatus)
throws ErrorDataDecoderException {
// --AaB03x or --AaB03x--
int readerIndex = undecodedChunk.readerIndex();
HttpPostBodyUtil.skipControlCharacters(undecodedChunk);
skipOneLine();
String newline;
try {
newline = readLine();
} catch (NotEnoughDataDecoderException e) {
undecodedChunk.readerIndex(readerIndex);
return null;
}
if (newline.equals(delimiter)) {
currentStatus = dispositionStatus;
return decodeMultipart(dispositionStatus);
} else if (newline.equals(delimiter + "--")) {
// CLOSEDELIMITER or MIXED CLOSEDELIMITER found
currentStatus = closeDelimiterStatus;
if (currentStatus == MultiPartStatus.HEADERDELIMITER) {
// MIXEDCLOSEDELIMITER
// end of the Mixed part
currentFieldAttributes = null;
return decodeMultipart(MultiPartStatus.HEADERDELIMITER);
}
return null;
}
undecodedChunk.readerIndex(readerIndex);
throw new ErrorDataDecoderException("No Multipart delimiter found");
}
/**
* Split the very first line (Content-Type value) in 2 Strings
*
* @param sb
* @return the array of 2 Strings
*/
private String[] splitHeaderContentType(String sb) {
int size = sb.length();
int aStart;
int aEnd;
int bStart;
int bEnd;
aStart = HttpPostBodyUtil.findNonWhitespace(sb, 0);
aEnd = HttpPostBodyUtil.findWhitespace(sb, aStart);
if (aEnd >= size) {
return new String[] {sb, ""};
}
if (sb.charAt(aEnd) == ';') {
aEnd--;
}
bStart = HttpPostBodyUtil.findNonWhitespace(sb, aEnd);
bEnd = HttpPostBodyUtil.findEndOfString(sb);
return new String[] {sb.substring(aStart, aEnd), sb.substring(bStart, bEnd)};
}
/**
* Split one header in Multipart
*
* @param sb
* @return an array of String where rank 0 is the name of the header, follows by several values
* that were separated by ';' or ','
*/
private String[] splitMultipartHeader(String sb) {
ArrayList<String> headers = new ArrayList<String>(1);
int nameStart;
int nameEnd;
int colonEnd;
int valueStart;
int valueEnd;
nameStart = HttpPostBodyUtil.findNonWhitespace(sb, 0);
for (nameEnd = nameStart; nameEnd < sb.length(); nameEnd++) {
char ch = sb.charAt(nameEnd);
if (ch == ':' || Character.isWhitespace(ch)) {
break;
}
}
for (colonEnd = nameEnd; colonEnd < sb.length(); colonEnd++) {
if (sb.charAt(colonEnd) == ':') {
colonEnd++;
break;
}
}
valueStart = HttpPostBodyUtil.findNonWhitespace(sb, colonEnd);
valueEnd = HttpPostBodyUtil.findEndOfString(sb);
headers.add(sb.substring(nameStart, nameEnd));
String svalue = sb.substring(valueStart, valueEnd);
String[] values = null;
if (svalue.indexOf(";") >= 0) {
values = svalue.split(";");
} else {
values = svalue.split(",");
}
for (String value : values) {
headers.add(value.trim());
}
String[] array = new String[headers.size()];
for (int i = 0; i < headers.size(); i++) {
array[i] = headers.get(i);
}
return array;
}
/**
* Find the next Disposition
*
* @return the next InterfaceHttpData if any
* @throws ErrorDataDecoderException
*/
private InterfaceHttpData findMultipartDisposition() throws ErrorDataDecoderException {
int readerIndex = undecodedChunk.readerIndex();
if (currentStatus == MultiPartStatus.DISPOSITION) {
currentFieldAttributes = new TreeMap<String, Attribute>(CaseIgnoringComparator.INSTANCE);
}
// read many lines until empty line with newline found! Store all data
while (!skipOneLine()) {
HttpPostBodyUtil.skipControlCharacters(undecodedChunk);
String newline;
try {
newline = readLine();
} catch (NotEnoughDataDecoderException e) {
undecodedChunk.readerIndex(readerIndex);
return null;
}
String[] contents = splitMultipartHeader(newline);
if (contents[0].equalsIgnoreCase(HttpPostBodyUtil.CONTENT_DISPOSITION)) {
boolean checkSecondArg = false;
if (currentStatus == MultiPartStatus.DISPOSITION) {
checkSecondArg = contents[1].equalsIgnoreCase(HttpPostBodyUtil.FORM_DATA);
} else {
checkSecondArg =
contents[1].equalsIgnoreCase(HttpPostBodyUtil.ATTACHMENT)
|| contents[1].equalsIgnoreCase(HttpPostBodyUtil.FILE);
}
if (checkSecondArg) {
// read next values and store them in the map as Attribute
for (int i = 2; i < contents.length; i++) {
String[] values = contents[i].split("=");
Attribute attribute;
try {
attribute =
factory.createAttribute(
request, values[0].trim(), decodeAttribute(cleanString(values[1]), charset));
} catch (NullPointerException e) {
throw new ErrorDataDecoderException(e);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException(e);
}
currentFieldAttributes.put(attribute.getName(), attribute);
}
}
} else if (contents[0].equalsIgnoreCase(HttpHeaders.Names.CONTENT_TRANSFER_ENCODING)) {
Attribute attribute;
try {
attribute =
factory.createAttribute(
request, HttpHeaders.Names.CONTENT_TRANSFER_ENCODING, cleanString(contents[1]));
} catch (NullPointerException e) {
throw new ErrorDataDecoderException(e);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException(e);
}
currentFieldAttributes.put(HttpHeaders.Names.CONTENT_TRANSFER_ENCODING, attribute);
} else if (contents[0].equalsIgnoreCase(HttpHeaders.Names.CONTENT_LENGTH)) {
Attribute attribute;
try {
attribute =
factory.createAttribute(
request, HttpHeaders.Names.CONTENT_LENGTH, cleanString(contents[1]));
} catch (NullPointerException e) {
throw new ErrorDataDecoderException(e);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException(e);
}
currentFieldAttributes.put(HttpHeaders.Names.CONTENT_LENGTH, attribute);
} else if (contents[0].equalsIgnoreCase(HttpHeaders.Names.CONTENT_TYPE)) {
// Take care of possible "multipart/mixed"
if (contents[1].equalsIgnoreCase(HttpPostBodyUtil.MULTIPART_MIXED)) {
if (currentStatus == MultiPartStatus.DISPOSITION) {
String[] values = contents[2].split("=");
multipartMixedBoundary = "--" + values[1];
currentStatus = MultiPartStatus.MIXEDDELIMITER;
return decodeMultipart(MultiPartStatus.MIXEDDELIMITER);
} else {
throw new ErrorDataDecoderException(
"Mixed Multipart found in a previous Mixed Multipart");
}
} else {
for (int i = 1; i < contents.length; i++) {
if (contents[i].toLowerCase().startsWith(HttpHeaders.Values.CHARSET)) {
String[] values = contents[i].split("=");
Attribute attribute;
try {
attribute =
factory.createAttribute(
request, HttpHeaders.Values.CHARSET, cleanString(values[1]));
} catch (NullPointerException e) {
throw new ErrorDataDecoderException(e);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException(e);
}
currentFieldAttributes.put(HttpHeaders.Values.CHARSET, attribute);
} else {
Attribute attribute;
try {
attribute =
factory.createAttribute(
request,
contents[0].trim(),
decodeAttribute(cleanString(contents[i]), charset));
} catch (NullPointerException e) {
throw new ErrorDataDecoderException(e);
} catch (IllegalArgumentException e) {
throw new ErrorDataDecoderException(e);
}
currentFieldAttributes.put(attribute.getName(), attribute);
}
}
}
} else {
throw new ErrorDataDecoderException("Unknown Params: " + newline);
}
}
// Is it a FileUpload
Attribute filenameAttribute = currentFieldAttributes.get(HttpPostBodyUtil.FILENAME);
if (currentStatus == MultiPartStatus.DISPOSITION) {
if (filenameAttribute != null) {
// FileUpload
currentStatus = MultiPartStatus.FILEUPLOAD;
// do not change the buffer position
return decodeMultipart(MultiPartStatus.FILEUPLOAD);
} else {
// Field
currentStatus = MultiPartStatus.FIELD;
// do not change the buffer position
return decodeMultipart(MultiPartStatus.FIELD);
}
} else {
if (filenameAttribute != null) {
// FileUpload
currentStatus = MultiPartStatus.MIXEDFILEUPLOAD;
// do not change the buffer position
return decodeMultipart(MultiPartStatus.MIXEDFILEUPLOAD);
} else {
// Field is not supported in MIXED mode
throw new ErrorDataDecoderException("Filename not found");
}
}
}