#include "core/gpslocation.h" #include "qt-models/gpslistmodel.h" #include "core/pref.h" #include "core/dive.h" #include "core/helpers.h" #include #include #include #include #include #include #include #include #include #include #define GPS_FIX_ADD_URL "http://api.subsurface-divelog.org/api/dive/add/" #define GPS_FIX_DELETE_URL "http://api.subsurface-divelog.org/api/dive/delete/" #define GPS_FIX_DOWNLOAD_URL "http://api.subsurface-divelog.org/api/dive/get/" #define GET_WEBSERVICE_UID_URL "https://cloud.subsurface-divelog.org/webuserid/" GpsLocation *GpsLocation::m_Instance = NULL; GpsLocation::GpsLocation(void (*showMsgCB)(const char *), QObject *parent) : QObject(parent), m_GpsSource(0), waitingForPosition(false), haveSource(UNKNOWN) { Q_ASSERT_X(m_Instance == NULL, "GpsLocation", "GpsLocation recreated"); m_Instance = this; showMessageCB = showMsgCB; // create a QSettings object that's separate from the main application settings geoSettings = new QSettings(QSettings::NativeFormat, QSettings::UserScope, QString("org.subsurfacedivelog"), QString("subsurfacelocation"), this); userAgent = getUserAgent(); (void)getGpsSource(); loadFromStorage(); } GpsLocation *GpsLocation::instance() { Q_ASSERT(m_Instance != NULL); return m_Instance; } GpsLocation::~GpsLocation() { m_Instance = NULL; } QGeoPositionInfoSource *GpsLocation::getGpsSource() { if (haveSource == NOGPS) return 0; if (!m_GpsSource) { m_GpsSource = QGeoPositionInfoSource::createDefaultSource(this); if (m_GpsSource != 0) { #if defined(Q_OS_IOS) // at least Qt 5.6.0 isn't doing things right on iOS - it MUST check for permission before // accessing the position source // I have a hacked version of Qt 5.6.0 that I will build the iOS binaries with for now; // this test below righ after creating the source checks if the location service is disabled // and set's an error right when the position source is created to indicate this if (m_GpsSource->error() == QGeoPositionInfoSource::AccessError) { haveSource = NOGPS; emit haveSourceChanged(); m_GpsSource = NULL; return NULL; } #endif haveSource = (m_GpsSource->supportedPositioningMethods() & QGeoPositionInfoSource::SatellitePositioningMethods) ? HAVEGPS : NOGPS; emit haveSourceChanged(); #ifndef SUBSURFACE_MOBILE if (verbose) #endif status(QString("Created position source %1").arg(m_GpsSource->sourceName())); connect(m_GpsSource, SIGNAL(positionUpdated(QGeoPositionInfo)), this, SLOT(newPosition(QGeoPositionInfo))); connect(m_GpsSource, SIGNAL(updateTimeout()), this, SLOT(updateTimeout())); connect(m_GpsSource, SIGNAL(error(QGeoPositionInfoSource::Error)), this, SLOT(positionSourceError(QGeoPositionInfoSource::Error))); m_GpsSource->setUpdateInterval(5 * 60 * 1000); // 5 minutes so the device doesn't drain the battery } else { #ifdef SUBSURFACE_MOBILE status("don't have GPS source"); #endif haveSource = NOGPS; emit haveSourceChanged(); } } return m_GpsSource; } bool GpsLocation::hasLocationsSource() { (void)getGpsSource(); return haveSource == HAVEGPS; } void GpsLocation::serviceEnable(bool toggle) { QGeoPositionInfoSource *gpsSource = getGpsSource(); if (haveSource != HAVEGPS) { if (toggle) status("Can't start location service, no location source available"); return; } if (toggle) { gpsSource->startUpdates(); status(QString("Starting Subsurface GPS service with update interval %1").arg(gpsSource->updateInterval())); } else { gpsSource->stopUpdates(); status("Stopping Subsurface GPS service"); } } QString GpsLocation::currentPosition() { if (!hasLocationsSource()) return tr("Unknown GPS location"); if (m_trackers.count() && m_trackers.lastKey() + 300 >= QDateTime::currentMSecsSinceEpoch() / 1000) { // we can simply use the last position that we tracked gpsTracker gt = m_trackers.last(); QString gpsString = printGPSCoords(gt.latitude.udeg, gt.longitude.udeg); qDebug() << "returning last position" << gpsString; return gpsString; } qDebug() << "requesting new GPS position"; m_GpsSource->requestUpdate(); // ok, we need to get the current position and somehow in the callback update the location in the QML UI // punting right now waitingForPosition = true; return GPS_CURRENT_POS; } void GpsLocation::newPosition(QGeoPositionInfo pos) { int64_t lastTime = 0; QGeoCoordinate lastCoord; int nr = m_trackers.count(); if (nr) { gpsTracker gt = m_trackers.last(); lastCoord.setLatitude(gt.latitude.udeg / 1000000.0); lastCoord.setLongitude(gt.longitude.udeg / 1000000.0); lastTime = gt.when; } // if we are waiting for a position update or // if we have no record stored or if at least the configured minimum // time has passed or we moved at least the configured minimum distance int64_t delta = (int64_t)pos.timestamp().toTime_t() + gettimezoneoffset() - lastTime; if (!nr || waitingForPosition || delta > prefs.time_threshold || lastCoord.distanceTo(pos.coordinate()) > prefs.distance_threshold) { QString msg("received new position %1 after delta %2 threshold %3"); status(qPrintable(msg.arg(pos.coordinate().toString()).arg(delta).arg(prefs.time_threshold))); waitingForPosition = false; gpsTracker gt; gt.when = pos.timestamp().toTime_t(); gt.when += gettimezoneoffset(gt.when); gt.latitude.udeg = (int)(pos.coordinate().latitude() * 1000000); gt.longitude.udeg = (int)(pos.coordinate().longitude() * 1000000); addFixToStorage(gt); } } void GpsLocation::updateTimeout() { status("request to get new position timed out"); } void GpsLocation::positionSourceError(QGeoPositionInfoSource::Error) { status("error receiving a GPS location"); haveSource = NOGPS; emit haveSourceChanged(); } void GpsLocation::status(QString msg) { qDebug() << msg; if (showMessageCB) (*showMessageCB)(qPrintable(msg)); } QString GpsLocation::getUserid(QString user, QString passwd) { qDebug() << "called getUserid"; QEventLoop loop; QTimer timer; timer.setSingleShot(true); QNetworkAccessManager *manager = new QNetworkAccessManager(qApp); QUrl url(GET_WEBSERVICE_UID_URL); QString data; data = user + " " + passwd; QNetworkRequest request; request.setUrl(url); request.setRawHeader("User-Agent", getUserAgent().toUtf8()); request.setRawHeader("Accept", "text/html"); request.setRawHeader("Content-type", "application/x-www-form-urlencoded"); reply = manager->post(request, data.toUtf8()); connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit); connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit); connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(getUseridError(QNetworkReply::NetworkError))); timer.start(10000); loop.exec(); if (timer.isActive()) { timer.stop(); if (reply->error() == QNetworkReply::NoError) { QString result = reply->readAll(); status(QString("received ") + result); result.remove("WebserviceID:"); reply->deleteLater(); return result; } } else { status("Getting Web service ID timed out"); } reply->deleteLater(); return QString(); } int GpsLocation::getGpsNum() const { return m_trackers.count(); } static void copy_gps_location(struct gpsTracker &gps, struct dive *d) { struct dive_site *ds = get_dive_site_by_uuid(d->dive_site_uuid); if (!ds) { d->dive_site_uuid = create_dive_site(qPrintable(gps.name), gps.when); ds = get_dive_site_by_uuid(d->dive_site_uuid); } ds->latitude = gps.latitude; ds->longitude = gps.longitude; } #define SAME_GROUP 6 * 3600 /* six hours */ bool GpsLocation::applyLocations() { int i; bool changed = false; int last = 0; int cnt = m_trackers.count(); if (cnt == 0) return false; // create a table with the GPS information QList gpsTable = m_trackers.values(); // now walk the dive table and see if we can fill in missing gps data struct dive *d; for_each_dive(i, d) { if (dive_has_gps_location(d)) continue; for (int j = last; j < cnt; j++) { if (time_during_dive_with_offset(d, gpsTable[j].when, SAME_GROUP)) { if (verbose) qDebug() << "processing gpsFix @" << get_dive_date_string(gpsTable[j].when) << "which is withing six hours of dive from" << get_dive_date_string(d->when) << "until" << get_dive_date_string(d->when + d->duration.seconds); /* * If position is fixed during dive. This is the good one. * Asign and mark position, and end gps_location loop */ if (time_during_dive_with_offset(d, gpsTable[j].when, 0)) { if (verbose) qDebug() << "gpsFix is during the dive, pick that one"; copy_gps_location(gpsTable[j], d); changed = true; last = j; break; } else { /* * If it is not, check if there are more position fixes in SAME_GROUP range */ if (j + 1 < cnt && time_during_dive_with_offset(d, gpsTable[j+1].when, SAME_GROUP)) { if (verbose) qDebug() << "look at the next gps fix @" << get_dive_date_string(gpsTable[j+1].when); /* first let's test if this one is during the dive */ if (time_during_dive_with_offset(d, gpsTable[j+1].when, 0)) { if (verbose) qDebug() << "which is during the dive, pick that one"; copy_gps_location(gpsTable[j+1], d); changed = true; last = j + 1; break; } /* we know the gps fixes are sorted; if they are both before the dive, ignore the first, * if theay are both after the dive, take the first, * if the first is before and the second is after, take the closer one */ if (gpsTable[j+1].when < d->when) { if (verbose) qDebug() << "which is closer to the start of the dive, do continue with that"; continue; } else if (gpsTable[j].when > d->when + d->duration.seconds) { if (verbose) qDebug() << "which is even later after the end of the dive, so pick the previous one"; copy_gps_location(gpsTable[j], d); changed = true; last = j; break; } else { /* ok, gpsFix is before, nextgpsFix is after */ if (d->when - gpsTable[j].when <= gpsTable[j+1].when - (d->when + d->duration.seconds)) { if (verbose) qDebug() << "pick the one before as it's closer to the start"; copy_gps_location(gpsTable[j], d); changed = true; last = j; break; } else { if (verbose) qDebug() << "pick the one after as it's closer to the start"; copy_gps_location(gpsTable[j+1], d); changed = true; last = j + 1; break; } } /* * If no more positions in range, the actual is the one. Asign, mark and end loop. */ } else { if (verbose) qDebug() << "which seems to be the best one for this dive, so pick it"; copy_gps_location(gpsTable[j], d); changed = true; last = j; break; } } } else { /* If position is out of SAME_GROUP range and in the future, mark position for * next dive iteration and end the gps_location loop */ if (gpsTable[j].when >= d->when + d->duration.seconds + SAME_GROUP) { last = j; break; } } } } if (changed) mark_divelist_changed(true); return changed; } QMap GpsLocation::currentGPSInfo() const { return m_trackers; } void GpsLocation::loadFromStorage() { int nr = geoSettings->value(QString("count")).toInt(); for (int i = 0; i < nr; i++) { struct gpsTracker gt; gt.when = geoSettings->value(QString("gpsFix%1_time").arg(i)).toLongLong(); gt.latitude.udeg = geoSettings->value(QString("gpsFix%1_lat").arg(i)).toInt(); gt.longitude.udeg = geoSettings->value(QString("gpsFix%1_lon").arg(i)).toInt(); gt.name = geoSettings->value(QString("gpsFix%1_name").arg(i)).toString(); gt.idx = i; m_trackers.insert(gt.when, gt); } } void GpsLocation::replaceFixToStorage(gpsTracker >) { if (!m_trackers.keys().contains(gt.when)) { addFixToStorage(gt); return; } gpsTracker replacedTracker = m_trackers.value(gt.when); geoSettings->setValue(QString("gpsFix%1_time").arg(replacedTracker.idx), gt.when); geoSettings->setValue(QString("gpsFix%1_lat").arg(replacedTracker.idx), gt.latitude.udeg); geoSettings->setValue(QString("gpsFix%1_lon").arg(replacedTracker.idx), gt.longitude.udeg); geoSettings->setValue(QString("gpsFix%1_name").arg(replacedTracker.idx), gt.name); replacedTracker.latitude = gt.latitude; replacedTracker.longitude = gt.longitude; replacedTracker.name = gt.name; } void GpsLocation::addFixToStorage(gpsTracker >) { int nr = m_trackers.count(); geoSettings->setValue("count", nr + 1); geoSettings->setValue(QString("gpsFix%1_time").arg(nr), gt.when); geoSettings->setValue(QString("gpsFix%1_lat").arg(nr), gt.latitude.udeg); geoSettings->setValue(QString("gpsFix%1_lon").arg(nr), gt.longitude.udeg); geoSettings->setValue(QString("gpsFix%1_name").arg(nr), gt.name); gt.idx = nr; geoSettings->sync(); m_trackers.insert(gt.when, gt); } void GpsLocation::deleteFixFromStorage(gpsTracker >) { qint64 when = gt.when; int cnt = m_trackers.count(); if (cnt == 0 || !m_trackers.keys().contains(when)) { qDebug() << "no gps fix with timestamp" << when; return; } if (geoSettings->value(QString("gpsFix%1_time").arg(gt.idx)).toLongLong() != when) { qDebug() << "uh oh - index for tracker has gotten out of sync..."; return; } if (cnt > 1) { // now we move the last tracker into that spot (so our settings stay consecutive) // and delete the last settings entry when = geoSettings->value(QString("gpsFix%1_time").arg(cnt - 1)).toLongLong(); struct gpsTracker movedTracker = m_trackers.value(when); movedTracker.idx = gt.idx; m_trackers.remove(movedTracker.when); m_trackers.insert(movedTracker.when, movedTracker); geoSettings->setValue(QString("gpsFix%1_time").arg(movedTracker.idx), when); geoSettings->setValue(QString("gpsFix%1_lat").arg(movedTracker.idx), movedTracker.latitude.udeg); geoSettings->setValue(QString("gpsFix%1_lon").arg(movedTracker.idx), movedTracker.longitude.udeg); geoSettings->setValue(QString("gpsFix%1_name").arg(movedTracker.idx), movedTracker.name); geoSettings->remove(QString("gpsFix%1_lat").arg(cnt - 1)); geoSettings->remove(QString("gpsFix%1_lon").arg(cnt - 1)); geoSettings->remove(QString("gpsFix%1_time").arg(cnt - 1)); geoSettings->remove(QString("gpsFix%1_name").arg(cnt - 1)); } geoSettings->setValue("count", cnt - 1); geoSettings->sync(); m_trackers.remove(gt.when); } void GpsLocation::deleteGpsFix(qint64 when) { struct gpsTracker defaultTracker; defaultTracker.when = 0; struct gpsTracker deletedTracker = m_trackers.value(when, defaultTracker); if (deletedTracker.when != when) { qDebug() << "can't find tracker for timestamp" << when; return; } deleteFixFromStorage(deletedTracker); m_deletedTrackers.append(deletedTracker); } void GpsLocation::clearGpsData() { m_trackers.clear(); geoSettings->clear(); geoSettings->sync(); } void GpsLocation::postError(QNetworkReply::NetworkError error) { Q_UNUSED(error); status(QString("error when sending a GPS fix: %1").arg(reply->errorString())); } void GpsLocation::getUseridError(QNetworkReply::NetworkError error) { Q_UNUSED(error); status(QString("error when retrieving Subsurface webservice user id: %1").arg(reply->errorString())); } void GpsLocation::deleteFixesFromServer() { QEventLoop loop; QTimer timer; timer.setSingleShot(true); QNetworkAccessManager *manager = new QNetworkAccessManager(qApp); QUrl url(GPS_FIX_DELETE_URL); QList keys = m_trackers.keys(); while (!m_deletedTrackers.isEmpty()) { gpsTracker gt = m_deletedTrackers.takeFirst(); QDateTime dt = QDateTime::fromTime_t(gt.when, Qt::UTC); QUrlQuery data; data.addQueryItem("login", prefs.userid); data.addQueryItem("dive_date", dt.toString("yyyy-MM-dd")); data.addQueryItem("dive_time", dt.toString("hh:mm")); status(data.toString(QUrl::FullyEncoded).toUtf8()); QNetworkRequest request; request.setUrl(url); request.setRawHeader("User-Agent", getUserAgent().toUtf8()); request.setRawHeader("Accept", "text/json"); request.setRawHeader("Content-type", "application/x-www-form-urlencoded"); reply = manager->post(request, data.toString(QUrl::FullyEncoded).toUtf8()); connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit); connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit); connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(postError(QNetworkReply::NetworkError))); timer.start(10000); loop.exec(); if (timer.isActive()) { timer.stop(); if (reply->error() != QNetworkReply::NoError) { QString response = reply->readAll(); status(QString("Server response:") + reply->readAll()); } } else { status("Deleting on the server timed out - try again later"); m_deletedTrackers.prepend(gt); break; } reply->deleteLater(); status(QString("completed deleting gps fix %1 - response: ").arg(gt.idx) + reply->readAll()); } } void GpsLocation::uploadToServer() { // we want to do this one at a time (the server prefers that) QEventLoop loop; QTimer timer; timer.setSingleShot(true); QNetworkAccessManager *manager = new QNetworkAccessManager(qApp); QUrl url(GPS_FIX_ADD_URL); Q_FOREACH(qint64 key, m_trackers.keys()) { struct gpsTracker gt = m_trackers.value(key); QDateTime dt = QDateTime::fromTime_t(gt.when, Qt::UTC); QUrlQuery data; data.addQueryItem("login", prefs.userid); data.addQueryItem("dive_date", dt.toString("yyyy-MM-dd")); data.addQueryItem("dive_time", dt.toString("hh:mm")); data.addQueryItem("dive_latitude", QString::number(gt.latitude.udeg / 1000000.0, 'f', 9)); data.addQueryItem("dive_longitude", QString::number(gt.longitude.udeg / 1000000.0, 'f', 9)); if (gt.name.isEmpty()) gt.name = "Auto-created dive"; data.addQueryItem("dive_name", gt.name); status(data.toString(QUrl::FullyEncoded).toUtf8()); QNetworkRequest request; request.setUrl(url); request.setRawHeader("User-Agent", getUserAgent().toUtf8()); request.setRawHeader("Accept", "text/json"); request.setRawHeader("Content-type", "application/x-www-form-urlencoded"); reply = manager->post(request, data.toString(QUrl::FullyEncoded).toUtf8()); connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit); connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit); // somehoe I cannot get this to work with the new connect syntax: // connect(reply, &QNetworkReply::error, this, &GpsLocation::postError); connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(postError(QNetworkReply::NetworkError))); timer.start(10000); loop.exec(); if (timer.isActive()) { timer.stop(); if (reply->error() != QNetworkReply::NoError) { QString response = reply->readAll(); if (!response.contains("Duplicate entry")) { status(QString("Server response:") + reply->readAll()); break; } } } else { status("Uploading to server timed out"); break; } reply->deleteLater(); status(QString("completed sending gps fix %1 - response: ").arg(gt.idx) + reply->readAll()); } // and now remove the ones that were locally deleted deleteFixesFromServer(); } void GpsLocation::downloadFromServer() { QEventLoop loop; QTimer timer; timer.setSingleShot(true); QNetworkAccessManager *manager = new QNetworkAccessManager(qApp); QUrl url(QString(GPS_FIX_DOWNLOAD_URL "?login=%1").arg(prefs.userid)); QNetworkRequest request; request.setUrl(url); request.setRawHeader("User-Agent", getUserAgent().toUtf8()); request.setRawHeader("Accept", "text/json"); request.setRawHeader("Content-type", "text/html"); qDebug() << "downloadFromServer accessing" << url; reply = manager->get(request); connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit); connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit); connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(getUseridError(QNetworkReply::NetworkError))); timer.start(10000); loop.exec(); if (timer.isActive()) { timer.stop(); if (!reply->error()) { QString response = reply->readAll(); QJsonDocument json = QJsonDocument::fromJson(response.toLocal8Bit()); QJsonObject object = json.object(); if (object.value("download").toString() != "ok") { qDebug() << "problems downloading GPS fixes"; return; } qDebug() << "already have" << m_trackers.count() << "GPS fixes"; QJsonArray downloadedFixes = object.value("dives").toArray(); qDebug() << downloadedFixes.count() << "GPS fixes downloaded"; for (int i = 0; i < downloadedFixes.count(); i++) { QJsonObject fix = downloadedFixes[i].toObject(); QDate date = QDate::fromString(fix.value("date").toString(), "yyy-M-d"); QTime time = QTime::fromString(fix.value("time").toString(), "hh:m:s"); QString name = fix.value("name").toString(); QString latitude = fix.value("latitude").toString(); QString longitude = fix.value("longitude").toString(); QDateTime timestamp; timestamp.setTimeSpec(Qt::UTC); timestamp.setDate(date); timestamp.setTime(time); struct gpsTracker gt; gt.when = timestamp.toMSecsSinceEpoch() / 1000; gt.latitude.udeg = (int)(latitude.toDouble() * 1000000); gt.longitude.udeg = (int)(longitude.toDouble() * 1000000); gt.name = name; // add this GPS fix to the QMap and the settings (remove existing fix at the same timestamp first) if (m_trackers.keys().contains(gt.when)) { qDebug() << "already have a fix at time stamp" << gt.when; replaceFixToStorage(gt); } else { addFixToStorage(gt); } } } else { qDebug() << "network error" << reply->error() << reply->errorString() << reply->readAll(); } } else { qDebug() << "download timed out"; status("Download from server timed out"); } reply->deleteLater(); }