/** Invoked by the HTTPClient. */
public int requestHandler(Request req, Response[] resp) throws ModuleException {
// parse Accept-Encoding header
int idx;
NVPair[] hdrs = req.getHeaders();
for (idx = 0; idx < hdrs.length; idx++)
if (hdrs[idx].getName().equalsIgnoreCase("Accept-Encoding")) break;
Vector pae;
if (idx == hdrs.length) {
hdrs = Util.resizeArray(hdrs, idx + 1);
req.setHeaders(hdrs);
pae = new Vector();
} else {
try {
pae = Util.parseHeader(hdrs[idx].getValue());
} catch (ParseException pe) {
throw new ModuleException(pe.toString());
}
}
// done if "*;q=1.0" present
HttpHeaderElement all = Util.getElement(pae, "*");
if (all != null) {
NVPair[] params = all.getParams();
for (idx = 0; idx < params.length; idx++)
if (params[idx].getName().equalsIgnoreCase("q")) break;
if (idx == params.length) // no qvalue, i.e. q=1.0
return REQ_CONTINUE;
if (params[idx].getValue() == null || params[idx].getValue().length() == 0)
throw new ModuleException("Invalid q value for \"*\" in " + "Accept-Encoding header: ");
try {
if (Float.valueOf(params[idx].getValue()).floatValue() > 0.) return REQ_CONTINUE;
} catch (NumberFormatException nfe) {
throw new ModuleException(
"Invalid q value for \"*\" in " + "Accept-Encoding header: " + nfe.getMessage());
}
}
// Add gzip, deflate and compress tokens to the Accept-Encoding header
if (!pae.contains(new HttpHeaderElement("deflate")))
pae.addElement(new HttpHeaderElement("deflate"));
if (!pae.contains(new HttpHeaderElement("gzip"))) pae.addElement(new HttpHeaderElement("gzip"));
if (!pae.contains(new HttpHeaderElement("x-gzip")))
pae.addElement(new HttpHeaderElement("x-gzip"));
if (!pae.contains(new HttpHeaderElement("compress")))
pae.addElement(new HttpHeaderElement("compress"));
if (!pae.contains(new HttpHeaderElement("x-compress")))
pae.addElement(new HttpHeaderElement("x-compress"));
hdrs[idx] = new NVPair("Accept-Encoding", Util.assembleHeader(pae));
return REQ_CONTINUE;
}
/**
* Add a token to the given header. If the header does not exist then create it with the given
* token.
*
* @param req the request who's headers are to be modified
* @param hdr the name of the header to add the token to (or to create)
* @param tok the token to add
* @exception ParseException if parsing the header fails
*/
private void addToken(Request req, String hdr, String tok) throws ParseException {
int idx;
NVPair[] hdrs = req.getHeaders();
for (idx = 0; idx < hdrs.length; idx++) {
if (hdrs[idx].getName().equalsIgnoreCase(hdr)) break;
}
if (idx == hdrs.length) // no such header, so add one
{
hdrs = Util.resizeArray(hdrs, idx + 1);
hdrs[idx] = new NVPair(hdr, tok);
req.setHeaders(hdrs);
} else // header exists, so add token
{
if (!Util.hasToken(hdrs[idx].getValue(), tok))
hdrs[idx] = new NVPair(hdr, hdrs[idx].getValue() + ", " + tok);
}
}
/**
* Closes the stream and causes the data to be sent if it has not already been done so. This
* method <strong>must</strong> be invoked when all data has been written.
*
* @exception IOException if any exception is thrown by the underlying socket, or if too few bytes
* were written.
* @exception IllegalAccessError if this stream has not been associated with a request yet.
*/
public synchronized void close() throws IOException, IllegalAccessError {
if (req == null) throw new IllegalAccessError("Stream not associated with a request");
if (ignore) return;
if (bos != null) {
req.setData(bos.toByteArray());
req.setStream(null);
if (trailers.length > 0) {
NVPair[] hdrs = req.getHeaders();
// remove any Trailer header field
int len = hdrs.length;
for (int idx = 0; idx < len; idx++) {
if (hdrs[idx].getName().equalsIgnoreCase("Trailer")) {
System.arraycopy(hdrs, idx + 1, hdrs, idx, len - idx - 1);
len--;
}
}
// add the trailers to the headers
hdrs = Util.resizeArray(hdrs, len + trailers.length);
System.arraycopy(trailers, 0, hdrs, len, trailers.length);
req.setHeaders(hdrs);
}
if (DebugConn) System.err.println("OutS: Sending request");
try {
resp = req.getConnection().sendRequest(req, con_to);
} catch (ModuleException me) {
throw new IOException(me.toString());
}
notify();
} else {
if (rcvd < length) {
IOException ioe =
new IOException(
"Premature close: only "
+ rcvd
+ " bytes written instead of the "
+ "expected "
+ length);
req.getConnection().closeDemux(ioe, false);
req.getConnection().outputFinished();
throw ioe;
}
try {
if (length == -1) {
if (DebugConn && trailers.length > 0) {
System.err.println("OutS: Sending trailers:");
for (int idx = 0; idx < trailers.length; idx++)
System.err.println(
" " + trailers[idx].getName() + ": " + trailers[idx].getValue());
}
os.write(Codecs.chunkedEncode(null, 0, 0, trailers, true));
}
os.flush();
if (DebugConn) System.err.println("OutS: All data sent");
} catch (IOException ioe) {
req.getConnection().closeDemux(ioe, true);
throw ioe;
} finally {
req.getConnection().outputFinished();
}
}
}
/** Invoked by the HTTPClient. */
public int requestHandler(Request req, Response[] resp) {
// First remove any Cookie headers we might have set for a previous
// request
NVPair[] hdrs = req.getHeaders();
int length = hdrs.length;
for (int idx = 0; idx < hdrs.length; idx++) {
int beg = idx;
while (idx < hdrs.length && hdrs[idx].getName().equalsIgnoreCase("Cookie")) idx++;
if (idx - beg > 0) {
length -= idx - beg;
System.arraycopy(hdrs, idx, hdrs, beg, length - beg);
}
}
if (length < hdrs.length) {
hdrs = Util.resizeArray(hdrs, length);
req.setHeaders(hdrs);
}
// Now set any new cookie headers
Hashtable cookie_list = Util.getList(cookie_cntxt_list, req.getConnection().getContext());
if (cookie_list.size() == 0) return REQ_CONTINUE; // no need to create a lot of objects
Vector names = new Vector();
Vector lens = new Vector();
int version = 0;
synchronized (cookie_list) {
Enumeration list = cookie_list.elements();
Vector remove_list = null;
while (list.hasMoreElements()) {
Cookie cookie = (Cookie) list.nextElement();
if (cookie.hasExpired()) {
if (LOG.isDebugEnabled()) LOG.debug("Cookie has expired and is being removed: " + cookie);
if (remove_list == null) remove_list = new Vector();
remove_list.addElement(cookie);
continue;
}
if (cookie.sendWith(req)
&& (cookie_handler == null || cookie_handler.sendCookie(cookie, req))) {
int len = cookie.getPath().length();
int idx;
// insert in correct position
for (idx = 0; idx < lens.size(); idx++)
if (((Integer) lens.elementAt(idx)).intValue() < len) break;
names.insertElementAt(cookie.toExternalForm(), idx);
lens.insertElementAt(new Integer(len), idx);
if (cookie instanceof Cookie2)
version = Math.max(version, ((Cookie2) cookie).getVersion());
}
}
// remove any marked cookies
// Note: we can't do this during the enumeration!
if (remove_list != null) {
for (int idx = 0; idx < remove_list.size(); idx++)
cookie_list.remove(remove_list.elementAt(idx));
}
}
if (!names.isEmpty()) {
StringBuffer value = new StringBuffer();
if (version > 0) value.append("$Version=\"" + version + "\"; ");
value.append((String) names.elementAt(0));
for (int idx = 1; idx < names.size(); idx++) {
value.append("; ");
value.append((String) names.elementAt(idx));
}
hdrs = Util.resizeArray(hdrs, hdrs.length + 1);
hdrs[hdrs.length - 1] = new NVPair("Cookie", value.toString());
// add Cookie2 header if necessary
if (version != 1) // we currently know about version 1 only
{
int idx;
for (idx = 0; idx < hdrs.length; idx++)
if (hdrs[idx].getName().equalsIgnoreCase("Cookie2")) break;
if (idx == hdrs.length) {
hdrs = Util.resizeArray(hdrs, hdrs.length + 1);
hdrs[hdrs.length - 1] = new NVPair("Cookie2", "$Version=\"1\"");
}
}
req.setHeaders(hdrs);
if (LOG.isDebugEnabled()) LOG.debug("Sending cookies '" + value + "'");
}
return REQ_CONTINUE;
}
