public static void sendHTTPResponse(OutputStream out, int responseCode, boolean hasData)
throws IOException {
StringBuffer httpResponse = new StringBuffer();
httpResponse.append(Integer.toString(responseCode)).append(" ");
httpResponse.append(HTTPUtil.getHTTPResponseMessage(responseCode));
httpResponse.append("\r\n");
StringBuffer response = new StringBuffer("HTTP/1.1 ");
response.append(httpResponse);
out.write(response.toString().getBytes());
if (!hasData) { // if no data will be sent, write the HTTP code
out.write("\r\n".getBytes());
out.write(httpResponse.toString().getBytes());
}
}
public static byte[] readData(InputStream inStream, OutputStream outStream, Message msg)
throws IOException, MessagingException {
byte[] data = null;
// Get the stream and read in the HTTP request and headers
BufferedInputStream in = new BufferedInputStream(inStream);
String[] request = HTTPUtil.readRequest(in);
msg.setAttribute(MA_HTTP_REQ_TYPE, request[0]);
msg.setAttribute(MA_HTTP_REQ_URL, request[1]);
msg.setHeaders(new InternetHeaders(in));
DataInputStream dataIn = new DataInputStream(in);
// Retrieve the message content
if (msg.getHeader("Content-Length") == null) {
String transfer_encoding = msg.getHeader("Transfer-Encoding");
if (transfer_encoding != null) {
if (transfer_encoding.replaceAll("\\s+", "").equalsIgnoreCase("chunked")) {
int length = 0;
data = null;
for (; ; ) {
// First get hex chunk length; followed by CRLF
int blocklen = 0;
for (; ; ) {
int ch = dataIn.readByte();
if (ch == '\n') {
break;
}
if (ch >= 'a' && ch <= 'f') {
ch -= ('a' - 10);
} else if (ch >= 'A' && ch <= 'F') {
ch -= ('A' - 10);
} else if (ch >= '0' && ch <= '9') {
ch -= '0';
} else {
continue;
}
blocklen = (blocklen * 16) + ch;
}
// Zero length is end of chunks
if (blocklen == 0) break;
// Ok, now read new chunk
int newlen = length + blocklen;
byte[] newdata = new byte[newlen];
if (length > 0) System.arraycopy(data, 0, newdata, 0, length);
dataIn.readFully(newdata, length, blocklen);
data = newdata;
length = newlen;
// And now the CRLF after the chunk;
while (dataIn.readByte() != '\n') ;
}
msg.setHeader("Content-Length", new Integer(length).toString());
} else {
if (outStream != null)
HTTPUtil.sendHTTPResponse(outStream, HttpURLConnection.HTTP_LENGTH_REQUIRED, false);
throw new IOException("Transfer-Encoding unimplemented: " + transfer_encoding);
}
} else if (msg.getHeader("Content-Length") == null) {
if (outStream != null)
HTTPUtil.sendHTTPResponse(outStream, HttpURLConnection.HTTP_LENGTH_REQUIRED, false);
throw new IOException("Content-Length missing");
}
} else {
// Receive the transmission's data
int contentSize = Integer.parseInt(msg.getHeader("Content-Length"));
data = new byte[contentSize];
dataIn.readFully(data);
}
return data;
}