bool
HttpClient::perform()
{
writeRequest();
if (!_conn->fresh() && (_conn->stream().obtain().size == 0)) {
_conn.reset(new HttpConnection(_conn->server()));
writeRequest();
}
return (readStatus() && readHeaders() && readContent());
}
bool EtherIPC::queueRequest(const RequestIPC& request) {
if ( fActiveRequest.burden() == None ) {
return writeRequest(request);
} else {
fRequestQueue.append(request);
return true;
}
}
void EtherIPC::done() {
fActiveRequest = RequestIPC(None);
if ( !fRequestQueue.isEmpty() ) {
const RequestIPC request = fRequestQueue.first();
fRequestQueue.removeFirst();
writeRequest(request);
} else {
emit busyChanged(getBusy());
}
}
int
probeBrailleDisplay (
BrailleDisplay *brl, unsigned int retryLimit,
GioEndpoint *endpoint, int inputTimeout,
BrailleRequestWriter *writeRequest,
BraillePacketReader *readPacket, void *responsePacket, size_t responseSize,
BrailleResponseHandler *handleResponse
) {
unsigned int retryCount = 0;
if (!endpoint) endpoint = brl->gioEndpoint;
while (writeRequest(brl)) {
drainBrailleOutput(brl, 0);
while (gioAwaitInput(endpoint, inputTimeout)) {
size_t size = readPacket(brl, responsePacket, responseSize);
if (!size) break;
{
BrailleResponseResult result = handleResponse(brl, responsePacket, size);
switch (result) {
case BRL_RSP_DONE:
return 1;
case BRL_RSP_UNEXPECTED:
logUnexpectedPacket(responsePacket, size);
case BRL_RSP_CONTINUE:
break;
default:
logMessage(LOG_WARNING, "unimplemented braille response result: %u", result);
case BRL_RSP_FAIL:
return 0;
}
}
}
if (errno != EAGAIN)
#ifdef ETIMEDOUT
if (errno != ETIMEDOUT)
#endif /* ETIMEDOUT */
break;
if (retryCount == retryLimit) break;
retryCount += 1;
}
return 0;
}
void handleHandshake(const boost::system::error_code& ec)
{
try
{
if (!ec)
{
// finished handshake, commence with request
writeRequest();
}
else
{
handleErrorCode(ec, ERROR_LOCATION);
}
}
CATCH_UNEXPECTED_ASYNC_CLIENT_EXCEPTION
}
void EHttpBasicAuthLogicHandler::doHandshake(EIoFilter::NextFilter* nextFilter) {
logger->debug(__FILE__, __LINE__, " doHandshake()");
if (step > 0) {
throw EProxyAuthException(__FILE__, __LINE__, "Authentication request already sent");
}
// Send request
sp<EHttpProxyRequest> req = dynamic_pointer_cast<EHttpProxyRequest>(request);
EMap<EString*, EList<EString*>*>* headers = req->getHeaders();
EString uk(EHttpProxyConstants_USER_PROPERTY);
EString* username = req->getProperties()->get(&uk);
EString pw(EHttpProxyConstants_PWD_PROPERTY);
EString* password = req->getProperties()->get(&pw);
EString value("Basic " + createAuthorization(username->c_str(), password->c_str()));
EAbstractAuthLogicHandler::addValueToHeader(headers, "Proxy-Authorization",
value.c_str(), true);
addKeepAliveHeaders(headers);
writeRequest(nextFilter, req);
step++;
}
static int
setFirmness (BrailleDisplay *brl, BrailleFirmness setting) {
brl->data->firmnessSetting = setting * 0XFF / BRL_FIRMNESS_MAXIMUM;
return writeRequest(brl);
}
static int
handleAcknowledgement (BrailleDisplay *brl, int ok) {
brl->data->acknowledgementHandler(brl, ok);
brl->data->acknowledgementHandler = NULL;
return writeRequest(brl);
}
void EHttpDigestAuthLogicHandler::doHandshake(EIoFilter::NextFilter* nextFilter) {
logger->debug(__FILE__, __LINE__, " doHandshake()");
if (step > 0 && directives == null) {
throw EProxyAuthException(__FILE__, __LINE__, "Authentication challenge not received");
}
sp<EHttpProxyRequest> req = dynamic_pointer_cast<EHttpProxyRequest>(request);
EMap<EString*, EList<EString*>*>* headers = req->getHeaders();
if (step > 0) {
logger->debug(__FILE__, __LINE__, " sending DIGEST challenge response");
// Build a challenge response
EHashMap<EString*, EString*> map;
EString k(EHttpProxyConstants_USER_PROPERTY);
map.put(new EString("username"), new EString(req->getProperties()->get(&k)));
EStringUtilities::copyDirective(directives, map, "realm");
EStringUtilities::copyDirective(directives, map, "uri");
EStringUtilities::copyDirective(directives, map, "opaque");
EStringUtilities::copyDirective(directives, map, "nonce");
EString algorithm = EStringUtilities::copyDirective(directives, map, "algorithm");
// Check for a supported algorithm
if (!algorithm.equalsIgnoreCase("md5") && !algorithm.equalsIgnoreCase("md5-sess")) {
throw EProxyAuthException(__FILE__, __LINE__, "Unknown algorithm required by server");
}
// Check for a supported qop
k = "qop";
EString* qop = directives->get(&k);
if (qop != null) {
EStringTokenizer st(qop->c_str(), ",");
EString token;// = null;
while (st.hasMoreTokens()) {
EString tk = st.nextToken();
if (token.equalsIgnoreCase("auth")) {
break;
}
/* @see:
int pos = Arrays.binarySearch(DigestUtilities.SUPPORTED_QOPS, tk);
if (pos > -1) {
token = tk;
}
*/
if (tk.equalsIgnoreCase("auth") || tk.equalsIgnoreCase("auth-int")) {
token = tk;
}
}
if (!token.isEmpty()) {
map.put(new EString("qop"), new EString(token));
byte nonce[8] = {0};
rnd.nextBytes(nonce, 8);
try {
EString* cnonce = new EString(EBase64::encodeBase64(nonce, 8)/*, proxyIoSession.getCharsetName()*/);
map.put(new EString("cnonce"), cnonce);
} catch (EUnsupportedEncodingException& e) {
throw EProxyAuthException(__FILE__, __LINE__, "Unable to encode cnonce", &e);
}
} else {
throw EProxyAuthException(__FILE__, __LINE__, "No supported qop option available");
}
}
map.put(new EString("nc"), new EString("00000001"));
map.put(new EString("uri"), new EString(req->getHttpURI()));
// Compute the response
try {
sp<EIoSession> session = proxyIoSession->getSession();
EString k(EHttpProxyConstants_PWD_PROPERTY);
map.put(new EString("response"), new EString(DigestUtilities::computeResponseValue(session, map, req
->getHttpVerb(), req->getProperties()->get(&k)->c_str(), response->getBody())));
} catch (EException& e) {
throw EProxyAuthException(__FILE__, __LINE__, "Digest response computing failed", &e);
}
// Prepare the challenge response header and add it to the
// request we will send
EString sb("Digest ");// = new StringBuilder("Digest ");
boolean addSeparator = false;
sp<EIterator<EMapEntry<EString*, EString*>*> > iter = map.entrySet()->iterator();
while (iter->hasNext()) {
EMapEntry<EString*, EString*>* entry = iter->next();
EString* key = entry->getKey();
if (addSeparator) {
sb.append(", ");
} else {
addSeparator = true;
}
boolean quotedValue = !key->equals("qop") && !key->equals("nc");
sb.append(key);
if (quotedValue) {
sb.append("=\"").append(entry->getValue()).append('\"');
} else {
sb.append('=').append(entry->getValue());
}
}
addValueToHeader(headers, "Proxy-Authorization", sb.toString().c_str(), true);
}
addKeepAliveHeaders(headers);
//req->setHeaders(headers); ?
writeRequest(nextFilter, req);
step++;
}
static int
getPacket (BrailleDisplay *brl, Packet *packet) {
while (1) {
int count = readPacket(brl, packet);
if (count > 0) {
switch (packet->header.type) {
{
int ok;
case PKT_NAK:
logNegativeAcknowledgement(packet);
if (!brl->data->acknowledgementHandler) {
logMessage(LOG_WARNING, "Unexpected NAK.");
continue;
}
switch (packet->header.arg1) {
case PKT_ERR_TIMEOUT: {
int originalLimit = brl->data->outputPayloadLimit;
if (brl->data->outputPayloadLimit > brl->data->model->cellCount)
brl->data->outputPayloadLimit = brl->data->model->cellCount;
if (brl->data->outputPayloadLimit > 1)
brl->data->outputPayloadLimit--;
if (brl->data->outputPayloadLimit != originalLimit)
logMessage(LOG_WARNING, "Maximum payload length reduced from %d to %d.",
originalLimit, brl->data->outputPayloadLimit);
break;
}
}
handleNegativeAcknowledgement:
ok = 0;
goto handleAcknowledgement;
case PKT_ACK:
if (!brl->data->acknowledgementHandler) {
logMessage(LOG_WARNING, "Unexpected ACK.");
continue;
}
ok = 1;
handleAcknowledgement:
brl->data->acknowledgementHandler(brl, ok);
brl->data->acknowledgementHandler = NULL;
if (writeRequest(brl)) continue;
count = -1;
break;
}
}
} else if ((count == 0) && brl->data->acknowledgementHandler &&
afterTimePeriod(&brl->data->acknowledgementPeriod, NULL)) {
if (++brl->data->acknowledgementsMissing < 5) {
logMessage(LOG_WARNING, "Missing ACK; assuming NAK.");
goto handleNegativeAcknowledgement;
}
logMessage(LOG_WARNING, "Too many missing ACKs.");
count = -1;
}
return count;
}
}
