void initDiscovery()
{
// get discovery params
// - host name
string s;
string hostname;
if (!getStringOption("hostname", hostname)) {
// none specified, create default
hostname = string_format("plan44-vdcd-%s", p44VdcHost->getDsUid().getString().c_str());
}
// start DS advertising if not disabled
if (!getOption("nodiscovery")) {
// start the basic service
ErrorPtr err = DiscoveryManager::sharedDiscoveryManager().start(
hostname.c_str()
);
if (Error::isOK(err)) {
// started ok, set discovery params
int sshPort = 0;
getIntOption("sshport", sshPort);
// start discovery manager
DiscoveryManager::sharedDiscoveryManager().advertiseDS(
p44VdcHost,
getOption("noauto"),
p44VdcHost->webUiPort,
p44VdcHost->webUiPath,
sshPort
);
}
else {
LOG(LOG_ERR, "**** Cannot start discovery manager: %s", err->description().c_str());
}
}
}
void DaliDeviceContainer::testRWResponse(CompletedCB aCompletedCB, DaliAddress aShortAddr, uint8_t aTestByte, bool aNoOrTimeout, uint8_t aResponse, ErrorPtr aError)
{
if (Error::isOK(aError) && !aNoOrTimeout && aResponse==aTestByte) {
LOG(LOG_NOTICE," - sent 0x%02X, received 0x%02X\n",aTestByte, aResponse, aNoOrTimeout);
// successfully read back same value from DTR as sent before
// - check if more tests
switch (aTestByte) {
case 0x55: aTestByte = 0xAA; break; // next test: inverse
case 0xAA: aTestByte = 0x00; break; // next test: all 0
case 0x00: aTestByte = 0xFF; break; // next test: all 1
case 0xFF: aTestByte = 0xF0; break; // next test: half / half
case 0xF0: aTestByte = 0x0F; break; // next test: half / half inverse
default:
// all tests done
aCompletedCB(aError);
// turn off lights
daliComm->daliSendDirectPower(DaliBroadcast, 0); // off
return;
}
// launch next test
testRW(aCompletedCB, aShortAddr, aTestByte);
}
else {
// not ok
if (Error::isOK(aError) && aNoOrTimeout) aError = ErrorPtr(new DaliCommError(DaliCommErrorMissingData));
// report
LOG(LOG_ERR,"DALI self test error: sent 0x%02X, error: %s\n",aTestByte, aError->description().c_str());
aCompletedCB(aError);
}
}
void SsdpSearch::socketStatusHandler(ErrorPtr aError)
{
FOCUSLOG("SSDP socket status: %s", aError ? aError->description().c_str() : "<no error>");
if (Error::isOK(aError)) {
FOCUSLOG("### sending UDP M-SEARCH");
// unregister socket status handler (or we'll get called when connection closes)
setConnectionStatusHandler(NULL);
// send search request
string ssdpSearch = string_format(
"M-SEARCH * HTTP/1.1\n"
"HOST: %s:%s\n"
"MAN: \"ssdp:discover\"\n"
"MX: %d\n"
"ST: %s\n",
SSDP_BROADCAST_ADDR,
SSDP_PORT,
SSDP_MX,
searchTarget.c_str()
);
transmitString(ssdpSearch);
// start timer (wait 1.5 the MX for answers)
timeoutTicket = MainLoop::currentMainLoop().executeOnce(boost::bind(&SsdpSearch::searchTimedOut, this), SSDP_MX*1500*MilliSecond);
}
else {
// error starting search
if (searchResultHandler) {
searchResultHandler(this, aError);
}
}
}
void handleCreateUserAnswer(JsonObjectPtr aJsonResponse, ErrorPtr aError)
{
if (Error::isOK(aError)) {
FOCUSLOG("Received success answer:\n%s", aJsonResponse->json_c_str());
JsonObjectPtr s = HueComm::getSuccessItem(aJsonResponse);
// apparently successful, extract user name
if (s) {
JsonObjectPtr u = s->get("username");
if (u) {
hueComm.userName = u->stringValue();
hueComm.uuid = currentAuthCandidate->first;
hueComm.baseURL = currentAuthCandidate->second;
hueComm.apiReady = true; // can use API now
FOCUSLOG("hue Bridge %s @ %s: successfully registered as user %s", hueComm.uuid.c_str(), hueComm.baseURL.c_str(), hueComm.userName.c_str());
// successfully registered with hue bridge, let caller know
callback(ErrorPtr());
// done!
keepAlive.reset(); // will delete object if nobody else keeps it
return;
}
}
}
else {
LOG(LOG_ERR, "hue Bridge: Error creating user: %s", aError->description().c_str());
}
// try next
++currentAuthCandidate;
processCurrentAuthCandidate(); // process next, if any
}
bool FdComm::transmitString(const string &aString)
{
ErrorPtr err;
size_t res = transmitBytes(aString.length(), (uint8_t *)aString.c_str(), err);
if (!Error::isOK(err)) {
FOCUSLOG("FdComm: Error sending data: %s", err->description().c_str());
}
return Error::isOK(err) && res==aString.length(); // ok if no error and all bytes sent
}
void Application::terminateAppWith(ErrorPtr aError)
{
if (Error::isOK(aError)) {
mainLoop.terminate(EXIT_SUCCESS);
}
else {
LOG(LOG_ERR, "Terminating because of error: %s", aError->description().c_str());
mainLoop.terminate(EXIT_FAILURE);
}
}
void EnoceanDeviceContainer::handleRadioPacket(Esp3PacketPtr aEsp3PacketPtr, ErrorPtr aError)
{
if (aError) {
LOG(LOG_INFO, "Radio packet error: %s\n", aError->description().c_str());
return;
}
// check learning mode
if (learningMode) {
// no learn/unlearn actions detected so far
// - check if we know that device address already. If so, it is a learn-out
bool learnIn = enoceanDevices.find(aEsp3PacketPtr->radioSender())==enoceanDevices.end();
// now add/remove the device (if the action is a valid learn/unlearn)
// detect implicit (RPS) learn in only with sufficient radio strength (or explicit override of that check),
// explicit ones are always recognized
if (aEsp3PacketPtr->eepHasTeachInfo(disableProximityCheck ? 0 : MIN_LEARN_DBM, false)) {
LOG(LOG_NOTICE, "Received EnOcean learn packet while learn mode enabled: %s\n", aEsp3PacketPtr->description().c_str());
// This is actually a valid learn action
ErrorPtr learnStatus;
if (learnIn) {
// new device learned in, add logical devices for it
int numNewDevices = EnoceanDevice::createDevicesFromEEP(this, aEsp3PacketPtr->radioSender(), aEsp3PacketPtr->eepProfile(), aEsp3PacketPtr->eepManufacturer());
if (numNewDevices>0) {
// successfully learned at least one device
// - update learn status (device learned)
getDeviceContainer().reportLearnEvent(true, ErrorPtr());
}
}
else {
// device learned out, un-pair all logical dS devices it has represented
// but keep dS level config in case it is reconnected
unpairDevicesByAddress(aEsp3PacketPtr->radioSender(), false);
getDeviceContainer().reportLearnEvent(false, ErrorPtr());
}
// - only allow one learn action (to prevent learning out device when
// button is released or other repetition of radio packet)
learningMode = false;
} // learn action
}
else {
// not learning mode, dispatch packet to all devices known for that address
for (EnoceanDeviceMap::iterator pos = enoceanDevices.lower_bound(aEsp3PacketPtr->radioSender()); pos!=enoceanDevices.upper_bound(aEsp3PacketPtr->radioSender()); ++pos) {
if (aEsp3PacketPtr->eepHasTeachInfo(MIN_LEARN_DBM, false) && aEsp3PacketPtr->eepRorg()!=rorg_RPS) {
// learning packet in non-learn mode -> report as non-regular user action, may be attempt to identify a device
// Note: RPS devices are excluded because for these all telegrams are regular regular user actions. signalDeviceUserAction() will be called
// from button
if (getDeviceContainer().signalDeviceUserAction(*(pos->second), false)) {
// consumed for device identification purposes, suppress further processing
break;
}
}
// handle regularily (might be RPS switch which does not have separate learn/action packets
pos->second->handleRadioPacket(aEsp3PacketPtr);
}
}
}
void MainLoop::childAnswerCollected(ExecCB aCallback, FdStringCollectorPtr aAnswerCollector, ErrorPtr aError)
{
LOG(LOG_DEBUG, "childAnswerCollected: error = %s", Error::isOK(aError) ? "none" : aError->description().c_str());
// close my end of the pipe
aAnswerCollector->stopMonitoringAndClose();
// now get answer
string answer = aAnswerCollector->collectedData;
LOG(LOG_DEBUG, "- Answer = %s", answer.c_str());
// call back directly
aCallback(cycleStartTime, aError, answer);
}
void handleServiceDescriptionAnswer(const string &aResponse, ErrorPtr aError)
{
if (Error::isOK(aError)) {
// show
//FOCUSLOG("Received bridge description:\n%s", aResponse.c_str());
FOCUSLOG("Received service description XML");
// TODO: this is poor man's XML scanning, use some real XML parser eventually
// do some basic checking for model
size_t i = aResponse.find("<manufacturer>Royal Philips Electronics</manufacturer>");
if (i!=string::npos) {
// is from Philips
// - check model number
i = aResponse.find("<modelNumber>929000226503</modelNumber>"); // original 2012 hue bridge, FreeRTOS
if (i==string::npos) i = aResponse.find("<modelNumber>BSB002</modelNumber>"); // hue bridge 2015 with homekit, Linux
if (i!=string::npos) {
// is the right model
// - get base URL
string token = "<URLBase>";
i = aResponse.find(token);
if (i!=string::npos) {
i += token.size();
size_t e = aResponse.find("</URLBase>", i);
if (e!=string::npos) {
// create the base address for the API
string url = aResponse.substr(i,e-i) + "api";
if (refind) {
// that's my known hue bridge, save the URL and report success
hueComm.baseURL = url; // save it
hueComm.apiReady = true; // can use API now
FOCUSLOG("pre-known hue Bridge %s found at %s", hueComm.uuid.c_str(), hueComm.baseURL.c_str());
callback(ErrorPtr()); // success
keepAlive.reset(); // will delete object if nobody else keeps it
return; // done
}
else {
// that's a hue bridge, remember it for trying to authorize
FOCUSLOG("- Seems to be a hue bridge at %s", url.c_str());
authCandidates[currentBridgeCandidate->first] = url;
}
}
}
}
}
}
else {
FOCUSLOG("Error accessing bridge description: %s", aError->description().c_str());
}
// try next
++currentBridgeCandidate;
processCurrentBridgeCandidate(); // process next, if any
}
void SerialComm::reconnectHandler()
{
if (reconnecting) {
ErrorPtr err = establishConnection();
if (!Error::isOK(err)) {
LOG(LOG_ERR, "SerialComm: re-connect failed: %s -> retry again later", err->description().c_str());
reconnecting = true;
MainLoop::currentMainLoop().executeOnce(boost::bind(&SerialComm::reconnectHandler, this), 15*Second);
}
else {
LOG(LOG_NOTICE, "SerialComm: successfully reconnected to %s", connectionPath.c_str());
}
}
}
bool SocketComm::connectionMonitorHandler(MLMicroSeconds aCycleStartTime, int aFd, int aPollFlags)
{
ErrorPtr err;
if ((aPollFlags & POLLOUT) && isConnecting) {
// became writable, check status
err = socketError(aFd);
}
else if (aPollFlags & POLLHUP) {
err = ErrorPtr(new SocketCommError(SocketCommErrorHungUp, "Connection HUP while opening (= connection rejected)"));
}
else if (aPollFlags & POLLERR) {
err = socketError(aFd);
}
// now check if successful
if (Error::isOK(err)) {
// successfully connected
connectionOpen = true;
isConnecting = false;
currentAddressInfo = NULL; // no more addresses to check
freeAddressInfo();
LOG(LOG_DEBUG, "Connection to %s:%s established", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str());
// call handler if defined
if (connectionStatusHandler) {
// connection ok
connectionStatusHandler(this, ErrorPtr());
}
// let FdComm base class operate open connection (will install handlers)
setFd(aFd);
}
else {
// this attempt has failed, try next (if any)
LOG(LOG_DEBUG, "- Connection attempt failed: %s", err->description().c_str());
// this will return no error if we have another address to try
err = connectNextAddress();
if (err) {
// no next attempt started, report error
LOG(LOG_WARNING, "Connection to %s:%s failed: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
if (connectionStatusHandler) {
connectionStatusHandler(this, err);
}
freeAddressInfo();
internalCloseConnection();
}
}
// handled
return true;
}
void bridgeDiscoveryHandler(SsdpSearchPtr aSsdpSearch, ErrorPtr aError)
{
if (Error::isOK(aError)) {
// check device for possibility of being a hue bridge
if (aSsdpSearch->server.find("IpBridge")!=string::npos) {
LOG(LOG_INFO, "hue bridge candidate device found at %s, server=%s, uuid=%s", aSsdpSearch->locationURL.c_str(), aSsdpSearch->server.c_str(), aSsdpSearch->uuid.c_str());
// put into map
bridgeCandiates[aSsdpSearch->uuid.c_str()] = aSsdpSearch->locationURL.c_str();
}
}
else {
FOCUSLOG("discovery ended, error = %s (usually: timeout)", aError->description().c_str());
aSsdpSearch->stopSearch();
// now process the results
currentBridgeCandidate = bridgeCandiates.begin();
processCurrentBridgeCandidate();
}
}
void deviceLearnHandler(bool aLearnIn, ErrorPtr aError)
{
// back to normal...
stopLearning(false);
// ...but as we acknowledge the learning with the LEDs, schedule a update for afterwards
shutDownTicket.executeOnce(boost::bind(&P44Vdcd::showAppStatus, this), 2*Second);
// acknowledge the learning (if any, can also be timeout or manual abort)
if (Error::isOK(aError)) {
if (aLearnIn) {
// show device learned
indicateTempStatus(tempstatus_success);
}
else {
// show device unlearned
indicateTempStatus(tempstatus_failure);
}
}
else {
LOG(LOG_ERR, "Learning error: %s", aError->description().c_str());
}
}
void DaliDeviceContainer::deviceInfoReceived(DaliBusDeviceListPtr aBusDevices, DaliBusDeviceList::iterator aNextDev, CompletedCB aCompletedCB, DaliComm::DaliDeviceInfoPtr aDaliDeviceInfoPtr, ErrorPtr aError)
{
bool missingData = aError && aError->isError(DaliCommError::domain(), DaliCommErrorMissingData);
bool badData =
aError &&
(aError->isError(DaliCommError::domain(), DaliCommErrorBadChecksum) || aError->isError(DaliCommError::domain(), DaliCommErrorBadDeviceInfo));
if (!aError || missingData || badData) {
// no error, or error but due to missing or bad data -> device exists
if (missingData) { LOG(LOG_INFO,"Device at shortAddress %d does not have device info\n",aDaliDeviceInfoPtr->shortAddress); }
if (badData) { LOG(LOG_INFO,"Device at shortAddress %d does not have valid device info\n",aDaliDeviceInfoPtr->shortAddress); }
// update device info entry in dali bus device
(*aNextDev)->setDeviceInfo(*aDaliDeviceInfoPtr);
}
else {
LOG(LOG_ERR,"Error reading device info: %s\n",aError->description().c_str());
return aCompletedCB(aError);
}
// check next
++aNextDev;
queryNextDev(aBusDevices, aNextDev, aCompletedCB, ErrorPtr());
}
virtual void initialized(ErrorPtr aError)
{
#if SELFTESTING_ENABLED
if (selfTesting) {
// self test mode
if (Error::isOK(aError)) {
// start self testing (which might do some collecting if needed for testing)
p44VdcHost->selfTest(boost::bind(&P44Vdcd::selfTestDone, this, _1), button, redLED, greenLED); // do the self test
}
else {
// - init already unsuccessful, consider test failed, call test end routine directly
selfTestDone(aError);
}
}
else
#endif // SELFTESTING_ENABLED
if (!Error::isOK(aError)) {
// cannot initialize, this is a fatal error
setAppStatus(status_fatalerror);
// exit in 15 seconds
LOG(LOG_ALERT, "****** Fatal error - vdc host initialisation failed: %s", aError->description().c_str());
shutDownTicket.executeOnce(boost::bind(&P44Vdcd::terminateAppWith, this, aError), 15*Second);
return;
}
else {
// Initialized ok and not testing
#if !DISABLE_DISCOVERY
// - initialize discovery
initDiscovery();
#endif
// - start running normally
p44VdcHost->startRunning();
// - collect devices
collectDevices(rescanmode_normal);
}
}
ErrorPtr SocketComm::initiateConnection()
{
int res;
ErrorPtr err;
if (!connectionOpen && !isConnecting && !serverConnection) {
freeAddressInfo();
// check for protocolfamily auto-choice
if (protocolFamily==PF_UNSPEC) {
// not specified, choose local socket if service spec begins with slash
if (serviceOrPortOrSocket.size()>1 && serviceOrPortOrSocket[0]=='/')
protocolFamily = PF_LOCAL; // absolute paths are considered local sockets
}
if (protocolFamily==PF_LOCAL) {
// local socket -> just connect, no lists to try
LOG(LOG_DEBUG, "Initiating local socket %s connection", serviceOrPortOrSocket.c_str());
hostNameOrAddress = "local"; // set it for log display
// synthesize address info for unix socket, because standard UN*X getaddrinfo() call usually does not handle PF_LOCAL
addressInfoList = new struct addrinfo;
memset(addressInfoList, 0, sizeof(addrinfo));
addressInfoList->ai_family = protocolFamily;
addressInfoList->ai_socktype = socketType;
addressInfoList->ai_protocol = protocol;
struct sockaddr_un *sunP = new struct sockaddr_un;
addressInfoList->ai_addr = (struct sockaddr *)sunP;
addressInfoList->ai_addrlen = sizeof(struct sockaddr_un);
memset((char *)sunP, 0, addressInfoList->ai_addrlen);
sunP->sun_family = (sa_family_t)protocolFamily;
strncpy(sunP->sun_path, serviceOrPortOrSocket.c_str(), sizeof (sunP->sun_path));
sunP->sun_path[sizeof (sunP->sun_path) - 1] = '\0'; // emergency terminator
}
else {
// assume internet connection -> get list of possible addresses and try them
if (hostNameOrAddress.empty()) {
err = ErrorPtr(new SocketCommError(SocketCommErrorNoParams,"Missing connection parameters"));
goto done;
}
// try to resolve host name
struct addrinfo hint;
memset(&hint, 0, sizeof(addrinfo));
hint.ai_flags = 0; // no flags
hint.ai_family = protocolFamily;
hint.ai_socktype = socketType;
hint.ai_protocol = protocol;
res = getaddrinfo(hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), &hint, &addressInfoList);
if (res!=0) {
// error
err = ErrorPtr(new SocketCommError(SocketCommErrorCannotResolve, string_format("getaddrinfo error %d: %s", res, gai_strerror(res))));
DBGLOG(LOG_DEBUG, "SocketComm: getaddrinfo failed: %s", err->description().c_str());
goto done;
}
}
// now try all addresses in the list
// - init iterator pointer
currentAddressInfo = addressInfoList;
// - try connecting first address
LOG(LOG_DEBUG, "Initiating connection to %s:%s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str());
err = connectNextAddress();
}
done:
if (!Error::isOK(err) && connectionStatusHandler) {
connectionStatusHandler(this, err);
}
// return it
return err;
}
void JsonRpcComm::gotJson(ErrorPtr aError, JsonObjectPtr aJsonObject)
{
JsonRpcCommPtr keepMeAlive(this); // make sure this object lives until routine terminates
ErrorPtr respErr;
bool safeError = false; // set when reporting error is safe (i.e. not error possibly generated by malformed error, to prevent error loops)
JsonObjectPtr idObj;
const char *idString = NULL;
if (Error::isOK(aError)) {
// received proper JSON, now check JSON-RPC specifics
FOCUSLOG("Received JSON message:\n %s\n", aJsonObject->c_strValue());
if (aJsonObject->isType(json_type_array)) {
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - batch mode not supported by this implementation"));
}
else if (!aJsonObject->isType(json_type_object)) {
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - request must be JSON object"));
}
else {
// check request object fields
const char *method = NULL;
JsonObjectPtr o = aJsonObject->get("jsonrpc");
if (!o)
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - missing 'jsonrpc'"));
else if (o->stringValue()!="2.0")
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - wrong version in 'jsonrpc'"));
else {
// get ID param (must be present for all messages except notification)
idObj = aJsonObject->get("id");
if (idObj) idString = idObj->c_strValue();
JsonObjectPtr paramsObj = aJsonObject->get("params");
// JSON-RPC version is correct, check other params
method = aJsonObject->getCString("method");
if (method) {
// this is a request (responses don't have the method member)
safeError = idObj!=NULL; // reporting error is safe if this is a method call. Other errors are reported only when reportAllErrors is set
if (*method==0)
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - empty 'method'"));
else {
// looks like a valid method or notification call
if (!jsonRequestHandler) {
// no handler -> method cannot be executed
respErr = ErrorPtr(new JsonRpcError(JSONRPC_METHOD_NOT_FOUND, "Method not found"));
}
else {
if (paramsObj && !paramsObj->isType(json_type_array) && !paramsObj->isType(json_type_object)) {
// invalid param object
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INVALID_REQUEST, "Invalid Request - 'params' must be object or array"));
}
else {
// call handler to execute method or notification
jsonRequestHandler(method, idString, paramsObj);
}
}
}
}
else {
// this is a response (requests always have a method member)
// - check if result or error
JsonObjectPtr respObj;
if (!aJsonObject->get("result", respObj)) {
// must be error, need further decoding
respObj = aJsonObject->get("error");
if (!respObj)
respErr = ErrorPtr(new JsonRpcError(JSONRPC_INTERNAL_ERROR, "Internal JSON-RPC error - response with neither 'result' nor 'error'"));
else {
// dissect error object
ErrorCode errCode = JSONRPC_INTERNAL_ERROR; // Internal RPC error
const char *errMsg = "malformed Error response";
// - try to get error code
JsonObjectPtr o = respObj->get("code");
if (o) errCode = o->int32Value();
// - try to get error message
o = respObj->get("message");
if (o) errMsg = o->c_strValue();
// compose error object from this
respErr = ErrorPtr(new JsonRpcError(errCode, errMsg));
// also get optional data element
respObj = respObj->get("data");
}
}
// Now we have either result or error.data in respObj, and respErr is Ok or contains the error code + message
if (!idObj) {
// errors without ID cannot be associated with calls made earlier, so just log the error
LOG(LOG_WARNING,"JSON-RPC 2.0 warning: Received response with no or NULL 'id' that cannot be dispatched:\n %s\n", aJsonObject->c_strValue());
}
else {
// dispatch by ID
uint32_t requestId = idObj->int32Value();
PendingAnswerMap::iterator pos = pendingAnswers.find(requestId);
if (pos==pendingAnswers.end()) {
// errors without ID cannot be associated with calls made earlier, so just log the error
LOG(LOG_WARNING,"JSON-RPC 2.0 error: Received response with unknown 'id'=%d : %s\n", requestId, aJsonObject->c_strValue());
}
else {
// found callback
JsonRpcResponseCB cb = pos->second;
pendingAnswers.erase(pos); // erase
cb(requestId, respErr, respObj); // call
}
respErr.reset(); // handled
}
}
}
}
}
else {
// no proper JSON received, create error response
if (aError->isDomain(JsonError::domain())) {
// some kind of parsing error
respErr = ErrorPtr(new JsonRpcError(JSONRPC_PARSE_ERROR, aError->description()));
}
else {
// some other type of server error
respErr = ErrorPtr(new JsonRpcError(JSONRPC_SERVER_ERROR, aError->description()));
}
}
// auto-generate error response for internally created errors
if (!Error::isOK(respErr)) {
if (safeError || reportAllErrors)
sendError(idString, respErr);
else
LOG(LOG_WARNING,"Received data that generated error which can't be sent back: Code=%d, Message='%s'\n", respErr->getErrorCode(), respErr->description().c_str());
}
}
ErrorPtr PropertyContainer::accessProperty(PropertyAccessMode aMode, ApiValuePtr aQueryObject, ApiValuePtr aResultObject, int aDomain, PropertyDescriptorPtr aParentDescriptor)
{
ErrorPtr err;
#if DEBUGFOCUSLOGGING
FOCUSLOG("\naccessProperty: entered with query = %s\n", aQueryObject->description().c_str());
if (aParentDescriptor) {
FOCUSLOG("- parentDescriptor '%s' (%s), fieldKey=%u, objectKey=%u\n", aParentDescriptor->name(), aParentDescriptor->isStructured() ? "structured" : "scalar", aParentDescriptor->fieldKey(), aParentDescriptor->objectKey());
}
#endif
// for reading, NULL query is like query { "":NULL }
if (aQueryObject->isNull() && aMode==access_read) {
aQueryObject->setType(apivalue_object);
aQueryObject->add("", aQueryObject->newValue(apivalue_null));
}
// aApiObject must be of type apivalue_object
if (!aQueryObject->isType(apivalue_object))
return ErrorPtr(new VdcApiError(415, "Query or Value written must be object"));
if (aMode==access_read) {
if (!aResultObject)
return ErrorPtr(new VdcApiError(415, "accessing property for read must provide result object"));
aResultObject->setType(apivalue_object); // must be object
}
// Iterate trough elements of query object
aQueryObject->resetKeyIteration();
string queryName;
ApiValuePtr queryValue;
string errorMsg;
while (aQueryObject->nextKeyValue(queryName, queryValue)) {
FOCUSLOG("- starting to process query element named '%s' : %s\n", queryName.c_str(), queryValue->description().c_str());
if (aMode==access_read && queryName=="#") {
// asking for number of elements at this level -> generate and return int value
queryValue = queryValue->newValue(apivalue_int64); // integer
queryValue->setInt32Value(numProps(aDomain, aParentDescriptor));
aResultObject->add(queryName, queryValue);
}
else {
// accessing an element or series of elements at this level
bool wildcard = isMatchAll(queryName);
// - find all descriptor(s) for this queryName
PropertyDescriptorPtr propDesc;
int propIndex = 0;
bool foundone = false;
do {
propDesc = getDescriptorByName(queryName, propIndex, aDomain, aParentDescriptor);
if (propDesc) {
foundone = true; // found at least one descriptor for this query element
FOCUSLOG(" - processing descriptor '%s' (%s), fieldKey=%u, objectKey=%u\n", propDesc->name(), propDesc->isStructured() ? "structured" : "scalar", propDesc->fieldKey(), propDesc->objectKey());
// actually access by descriptor
if (propDesc->isStructured()) {
ApiValuePtr subQuery;
// property is a container. Now check the value
if (queryValue->isType(apivalue_object)) {
subQuery = queryValue; // query specifies next level, just use it
}
else if (queryName!="*" && (!wildcard || propDesc->isWildcardAddressable())) {
// don't recurse deeper when query name is "*" or property is not wildcard-adressable
// special case is "*" as leaf in query - only recurse if it is not present
// - autocreate subquery
subQuery = queryValue->newValue(apivalue_object);
subQuery->add("", queryValue->newValue(apivalue_null));
}
if (subQuery) {
// addressed property is a container by itself -> recurse
// - get the PropertyContainer
int containerDomain = aDomain; // default to same, but getContainer may modify it
PropertyDescriptorPtr containerPropDesc = propDesc;
PropertyContainerPtr container = getContainer(containerPropDesc, containerDomain);
if (container) {
FOCUSLOG(" - container for '%s' is 0x%p\n", propDesc->name(), container.get());
FOCUSLOG(" >>>> RECURSING into accessProperty()\n");
if (aMode==access_read) {
// read needs a result object
ApiValuePtr resultValue = queryValue->newValue(apivalue_object);
err = container->accessProperty(aMode, subQuery, resultValue, containerDomain, containerPropDesc);
if (Error::isOK(err)) {
// add to result with actual name (from descriptor)
FOCUSLOG("\n <<<< RETURNED from accessProperty() recursion\n");
FOCUSLOG(" - accessProperty of container for '%s' returns %s\n", propDesc->name(), resultValue->description().c_str());
aResultObject->add(propDesc->name(), resultValue);
}
}
else {
// for write, just pass the query value
err = container->accessProperty(aMode, subQuery, ApiValuePtr(), containerDomain, containerPropDesc);
FOCUSLOG(" <<<< RETURNED from accessProperty() recursion\n", propDesc->name(), container.get());
}
if ((aMode!=access_read) && Error::isOK(err)) {
// give this container a chance to post-process write access
err = writtenProperty(aMode, propDesc, aDomain, container);
}
// 404 errors are collected, but dont abort the query
if (Error::isError(err, VdcApiError::domain(), 404)) {
if (!errorMsg.empty()) errorMsg += "; ";
errorMsg += string_format("Error(s) accessing subproperties of '%s' : { %s }", queryName.c_str(), err->description().c_str());
err.reset(); // forget the error on this level
}
}
}
}
else {
// addressed (and known by descriptor!) property is a simple value field -> access it
if (aMode==access_read) {
// read access: create a new apiValue and have it filled
ApiValuePtr fieldValue = queryValue->newValue(propDesc->type()); // create a value of correct type to get filled
bool accessOk = accessField(aMode, fieldValue, propDesc); // read
// for read, not getting an OK from accessField means: property does not exist (even if known per descriptor),
// so it will not be added to the result
if (accessOk) {
// add to result with actual name (from descriptor)
aResultObject->add(propDesc->name(), fieldValue);
}
FOCUSLOG(" - accessField for '%s' returns %s\n", propDesc->name(), fieldValue->description().c_str());
}
else {
// write access: just pass the value
if (!accessField(aMode, queryValue, propDesc)) { // write
err = ErrorPtr(new VdcApiError(403,string_format("Write access to '%s' denied", propDesc->name())));
}
}
}
}
else {
// no descriptor found for this query element
// Note: this means that property is not KNOWN, which IS not the same as getting false from accessField
// (latter means that property IS known, but has no value in the context it was queried)
// HOWEVER, for the vdc API it was decided that for reading, these cases should NOT be
// distinguished for getProperty. If a property does not exist for either reason, the return tree just does
// no contain that property.
// Also note that not having a property is not the same as not having a property VALUE:
// latter case will explicitly return a NULL value
if (!wildcard && !foundone && aMode!=access_read) {
// query did address a specific property but it is unknown -> report as error (for read AND write!)
// - collect error message, but do not abort query processing
if (!errorMsg.empty()) errorMsg += "; ";
errorMsg += string_format("Unknown property '%s' -> ignored", queryName.c_str());
}
}
} while (Error::isOK(err) && propIndex!=PROPINDEX_NONE);
}
// now generate error if we have collected a non-empty error message
if (!errorMsg.empty()) {
err = ErrorPtr(new VdcApiError(404,errorMsg));
}
#if DEBUGLOGGING
if (aMode==access_read) {
FOCUSLOG("- query element named '%s' now has result object: %s\n", queryName.c_str(), aResultObject->description().c_str());
}
#endif
}
return err;
}
void containerTested(ErrorPtr aError)
{
if (!Error::isOK(aError)) {
// test failed
LOG(LOG_ERR, "****** Test of '%s' FAILED with error: %s", nextVdc->second->vdcClassIdentifier(), aError->description().c_str());
// remember
globalError = aError;
// morse out tag number of vDC failing self test until button is pressed
greenLED->steadyOff();
int numBlinks = nextVdc->second->getTag();
redLED->blinkFor(300*MilliSecond*numBlinks, 300*MilliSecond, 50);
// call myself again later
errorReportTicket = MainLoop::currentMainLoop().executeOnce(boost::bind(&SelfTestRunner::containerTested, this, aError), 300*MilliSecond*numBlinks+2*Second);
// also install button responder
button->setButtonHandler(boost::bind(&SelfTestRunner::errorAcknowledged, this), false); // report only release
}
else {
// test was ok
LOG(LOG_ERR, "------ Test of '%s' OK", nextVdc->second->vdcClassIdentifier());
// check next
++nextVdc;
testNextContainer();
}
}
ErrorPtr PersistentParams::saveToStore(const char *aParentIdentifier, bool aMultipleChildrenAllowed)
{
ErrorPtr err;
if (dirty) {
sqlite3pp::command cmd(paramStore);
string sql;
// cleanup: remove all previous records for that parent if not multiple children allowed
if (!aMultipleChildrenAllowed) {
sql = string_format("DELETE FROM %s WHERE %s='%s'", tableName(), getKeyDef(0)->fieldName, aParentIdentifier);
if (rowid!=0) {
string_format_append(sql, " AND ROWID!=%lld", rowid);
}
FOCUSLOG("- cleanup before save: %s\n", sql.c_str());
if (paramStore.executef(sql.c_str()) != SQLITE_OK) {
LOG(LOG_ERR, "- cleanup error (ignored): %s\n", sql.c_str(), paramStore.error()->description().c_str());
}
}
// now save
if (rowid!=0) {
// already exists in the DB, just update
sql = string_format("UPDATE %s SET ", tableName());
// - update all fields, even key fields may change (as long as they don't collide with another entry)
appendfieldList(sql, true, false, true);
appendfieldList(sql, false, true, true);
string_format_append(sql, " WHERE ROWID=%lld", rowid);
// now execute command
FOCUSLOG("saveToStore: update existing row for parent='%s': %s\n", aParentIdentifier, sql.c_str());
if (cmd.prepare(sql.c_str())!=SQLITE_OK) {
// error on update is always a real error - if we loaded the params from the DB, schema IS ok!
err = paramStore.error();
}
if (Error::isOK(err)) {
// bind the values
int index = 1; // SQLite parameter indexes are 1-based!
bindToStatement(cmd, index, aParentIdentifier, 0); // no flags yet, class hierarchy will collect them
// now execute command
if (cmd.execute()==SQLITE_OK) {
// ok, updated ok
dirty = false;
}
else {
// failed
err = paramStore.error();
}
}
}
else {
// seems new, insert. But use INSERT OR REPLACE to make sure key constraints are enforced
sql = string_format("INSERT OR REPLACE INTO %s (", tableName());;
size_t numFields = appendfieldList(sql, true, false, false);
numFields += appendfieldList(sql, false, true, false);
sql += ") VALUES (";
bool first = true;
for (int i=0; i<numFields; i++) {
if (!first) sql += ", ";
sql += "?";
first = false;
}
sql += ")";
// prepare
FOCUSLOG("saveToStore: insert new row for parent='%s': %s\n", aParentIdentifier, sql.c_str());
if (cmd.prepare(sql.c_str())!=SQLITE_OK) {
FOCUSLOG("- insert not successful - assume wrong schema -> calling checkAndUpdateSchema()\n");
// - error on INSERT could mean schema is not up to date
cmd.reset();
checkAndUpdateSchema();
FOCUSLOG("saveToStore: retrying insert after schema update: %s\n", sql.c_str());
if (cmd.prepare(sql.c_str())!=SQLITE_OK) {
// error now means something is really wrong
err = paramStore.error();
}
}
if (Error::isOK(err)) {
// bind the values
int index = 1; // SQLite parameter indexes are 1-based!
bindToStatement(cmd, index, aParentIdentifier, 0); // no flags yet, class hierarchy will collect them
// now execute command
if (cmd.execute()==SQLITE_OK) {
// get the new ROWID
rowid = paramStore.last_insert_rowid();
dirty = false;
}
else {
// failed
err = paramStore.error();
}
}
}
if (!Error::isOK(err)) {
LOG(LOG_ERR, "saveToStore: %s - failed: %s\n", sql.c_str(), err->description().c_str());
}
}
// anyway, have children checked
if (Error::isOK(err)) {
err = saveChildren();
}
return err;
}
void SocketComm::dataExceptionHandler(int aFd, int aPollFlags)
{
SocketCommPtr keepMyselfAlive(this);
DBGLOG(LOG_DEBUG, "SocketComm::dataExceptionHandler(fd==%d, pollflags==0x%X)", aFd, aPollFlags);
if (!isClosing) {
if (aPollFlags & POLLHUP) {
// other end has closed connection
// - report
if (connectionStatusHandler) {
// report reason for closing
connectionStatusHandler(this, ErrorPtr(new SocketCommError(SocketCommErrorHungUp,"Connection closed (HUP)")));
}
}
else if (aPollFlags & POLLIN) {
// Note: on linux a socket closed server side does not return POLLHUP, but POLLIN with no data
// alerted for read, but nothing to read any more: assume connection closed
ErrorPtr err = socketError(aFd);
if (Error::isOK(err))
err = ErrorPtr(new SocketCommError(SocketCommErrorHungUp,"Connection closed (POLLIN but no data -> interpreted as HUP)"));
DBGLOG(LOG_DEBUG, "Connection to %s:%s has POLLIN but no data; error: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
// - report
if (connectionStatusHandler) {
// report reason for closing
connectionStatusHandler(this, err);
}
}
else if (aPollFlags & POLLERR) {
// error
ErrorPtr err = socketError(aFd);
LOG(LOG_WARNING, "Connection to %s:%s reported error: %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
// - report
if (connectionStatusHandler) {
// report reason for closing
connectionStatusHandler(this, err);
}
}
else {
// NOP
return;
}
// - shut down (Note: if nobody else retains the connection except the server SocketComm, this will delete the connection)
internalCloseConnection();
}
}
ErrorPtr PersistentParams::deleteFromStore()
{
ErrorPtr err;
dirty = false; // forget any unstored changes
if (rowid!=0) {
FOCUSLOG("deleteFromStore: deleting row %lld in table %s\n", rowid, tableName());
if (paramStore.executef("DELETE FROM %s WHERE ROWID=%lld", tableName(), rowid) != SQLITE_OK) {
err = paramStore.error();
}
// deleted, forget
rowid = 0;
}
// anyway, remove children
if (Error::isOK(err)) {
err = deleteChildren();
}
if (!Error::isOK(err)) {
LOG(LOG_ERR, "deleteFromStore: table=%s, ROWID=%lld - failed: %s\n", tableName(), rowid, err->description().c_str());
}
return err;
}
void VdcJsonApiConnection::jsonResponseHandler(VdcApiResponseCB aResponseHandler, int32_t aResponseId, ErrorPtr &aError, JsonObjectPtr aResultOrErrorData)
{
if (aResponseHandler) {
// create request object just to hold the response ID
string respId = string_format("%d", aResponseId);
ApiValuePtr resultOrErrorData = JsonApiValue::newValueFromJson(aResultOrErrorData);
VdcApiRequestPtr request = VdcJsonApiRequestPtr(new VdcJsonApiRequest(VdcJsonApiConnectionPtr(this), respId.c_str()));
if (Error::isOK(aError)) {
LOG(LOG_INFO,"vdSM -> vDC (JSON) result received: id='%s', result=%s\n", request->requestId().c_str(), resultOrErrorData ? resultOrErrorData->description().c_str() : "<none>");
}
else {
LOG(LOG_INFO,"vdSM -> vDC (JSON) error received: id='%s', error=%s, errordata=%s\n", request->requestId().c_str(), aError->description().c_str(), resultOrErrorData ? resultOrErrorData->description().c_str() : "<none>");
}
aResponseHandler(VdcApiConnectionPtr(this), request, aError, resultOrErrorData);
}
}
ErrorPtr SocketComm::connectNextAddress()
{
int res;
ErrorPtr err;
const int one = 1;
// close possibly not fully open connection FD
internalCloseConnection();
// try to create a socket
int socketFD = -1;
// as long as we have more addresses to check and not already connecting
bool startedConnecting = false;
while (currentAddressInfo && !startedConnecting) {
err.reset();
socketFD = socket(currentAddressInfo->ai_family, currentAddressInfo->ai_socktype, currentAddressInfo->ai_protocol);
if (socketFD==-1) {
err = SysError::errNo("Cannot create client socket: ");
}
else {
// usable address found, socket created
// - make socket non-blocking
makeNonBlocking(socketFD);
// Now we have a socket
if (connectionLess) {
// UDP: no connect phase
// - enable for broadcast if requested
if (broadcast) {
// needs SO_BROADCAST
if (setsockopt(socketFD, SOL_SOCKET, SO_BROADCAST, (char *)&one, (int)sizeof(one)) == -1) {
err = SysError::errNo("Cannot setsockopt(SO_BROADCAST): ");
}
else {
// to receive answers, we also need to bind to INADDR_ANY
// - get port number
char sbuf[NI_MAXSERV];
int s = getnameinfo(
currentAddressInfo->ai_addr, currentAddressInfo->ai_addrlen,
NULL, 0, // no host address
sbuf, sizeof sbuf, // only service/port
NI_NUMERICSERV
);
if (s==0) {
// convert to numeric port number
int port;
if (sscanf(sbuf, "%d", &port)==1) {
// bind connectionless socket to INADDR_ANY to receive broadcasts at all
struct sockaddr_in recvaddr;
memset(&recvaddr, 0, sizeof recvaddr);
recvaddr.sin_family = AF_INET;
recvaddr.sin_port = htons(port);
recvaddr.sin_addr.s_addr = INADDR_ANY;
if (::bind(socketFD, (struct sockaddr*)&recvaddr, sizeof recvaddr) == -1) {
err = SysError::errNo("Cannot bind to INADDR_ANY: ");
}
}
}
}
}
if (Error::isOK(err)) {
startedConnecting = true;
// save valid address info for later use (UDP needs it to send datagrams)
if (currentSockAddrP)
free(currentSockAddrP);
currentSockAddrLen = currentAddressInfo->ai_addrlen;
currentSockAddrP = (sockaddr *)malloc(currentSockAddrLen);
memcpy(currentSockAddrP, currentAddressInfo->ai_addr, currentAddressInfo->ai_addrlen);
}
}
else {
// TCP: initiate connection
res = connect(socketFD, currentAddressInfo->ai_addr, currentAddressInfo->ai_addrlen);
LOG(LOG_DEBUG, "- Attempting connection with address family = %d, protocol = %d", currentAddressInfo->ai_family, currentAddressInfo->ai_protocol);
if (res==0 || errno==EINPROGRESS) {
// connection initiated (or already open, but connectionMonitorHandler will take care in both cases)
startedConnecting = true;
}
else {
// immediate error connecting
err = SysError::errNo("Cannot connect: ");
}
}
}
// advance to next address
currentAddressInfo = currentAddressInfo->ai_next;
}
if (!startedConnecting) {
// exhausted addresses without starting to connect
if (!err) err = ErrorPtr(new SocketCommError(SocketCommErrorNoConnection, "No connection could be established"));
LOG(LOG_DEBUG, "Cannot initiate connection to %s:%s - %s", hostNameOrAddress.c_str(), serviceOrPortOrSocket.c_str(), err->description().c_str());
}
else {
if (!connectionLess) {
// connection in progress
isConnecting = true;
// - save FD
connectionFd = socketFD;
// - install callback for when FD becomes writable (or errors out)
mainLoop.registerPollHandler(
connectionFd,
POLLOUT,
boost::bind(&SocketComm::connectionMonitorHandler, this, _1, _2, _3)
);
}
else {
// UDP socket successfully created
LOG(LOG_DEBUG, "Connectionless socket ready for address family = %d, protocol = %d", protocolFamily, protocol);
connectionOpen = true;
isConnecting = false;
currentAddressInfo = NULL; // no more addresses to check
// immediately use socket for I/O
setFd(socketFD);
// call handler if defined
if (connectionStatusHandler) {
// connection ok
connectionStatusHandler(this, ErrorPtr());
}
}
}
// clean up if list processed
freeAddressInfo();
// return status
return err;
}
bool SerialComm::requestConnection()
{
ErrorPtr err = establishConnection();
if (!Error::isOK(err)) {
if (!reconnecting) {
LOG(LOG_ERR, "SerialComm: requestConnection() could not open connection now: %s -> entering background retry mode", err->description().c_str());
reconnecting = true;
MainLoop::currentMainLoop().executeOnce(boost::bind(&SerialComm::reconnectHandler, this), 5*Second);
}
return false;
}
return true;
}