diff options
Diffstat (limited to 'src/network/kernel/qhostinfo_symbian.cpp')
| -rw-r--r-- | src/network/kernel/qhostinfo_symbian.cpp | 600 |
1 files changed, 600 insertions, 0 deletions
diff --git a/src/network/kernel/qhostinfo_symbian.cpp b/src/network/kernel/qhostinfo_symbian.cpp new file mode 100644 index 0000000..2a8de1d --- /dev/null +++ b/src/network/kernel/qhostinfo_symbian.cpp @@ -0,0 +1,600 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtNetwork module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//#define QHOSTINFO_DEBUG + +// Qt Headers +#include <QByteArray> +#include <QUrl> +#include <QList> + +#include "qplatformdefs.h" + +#include "qhostinfo_p.h" +#include <private/qcore_symbian_p.h> +#include <private/qsystemerror_p.h> +#include <private/qnetworksession_p.h> + +// Header does not exist in the S60 5.0 SDK +//#include <networking/dnd_err.h> +const TInt KErrDndNameNotFound = -5120; // Returned when no data found for GetByName +const TInt KErrDndAddrNotFound = -5121; // Returned when no data found for GetByAddr + +QT_BEGIN_NAMESPACE + +static void setError_helper(QHostInfo &info, TInt symbianError) +{ + switch (symbianError) { + case KErrDndNameNotFound: + case KErrDndAddrNotFound: + case KErrNotFound: + case KErrEof: + // various "no more results" error codes + info.setError(QHostInfo::HostNotFound); + info.setErrorString(QObject::tr("Host not found")); + break; + default: + // Unknown error + info.setError(QHostInfo::UnknownError); + info.setErrorString(QSystemError(symbianError, QSystemError::NativeError).toString()); + break; + } +} + +QHostInfo QHostInfoAgent::fromName(const QString &hostName, QSharedPointer<QNetworkSession> networkSession) +{ + QHostInfo results; + + // Connect to ESOCK + RSocketServ socketServ(qt_symbianGetSocketServer()); + RHostResolver hostResolver; + + + int err; + if (networkSession) + err = QNetworkSessionPrivate::nativeOpenHostResolver(*networkSession, hostResolver, KAfInet, KProtocolInetUdp); + else + err = hostResolver.Open(socketServ, KAfInet, KProtocolInetUdp); + if (err) { + setError_helper(results, err); + return results; + } + + TNameEntry nameResult; + +#if defined(QHOSTINFO_DEBUG) + qDebug("QHostInfoAgent::fromName(%s) looking up...", + hostName.toLatin1().constData()); +#endif + + QHostAddress address; + if (address.setAddress(hostName)) { + // Reverse lookup +#if defined(QHOSTINFO_DEBUG) + qDebug("(reverse lookup)"); +#endif + TInetAddr IpAdd; + IpAdd.Input(qt_QString2TPtrC(hostName)); + + // Synchronous request. nameResult returns Host Name. + err = hostResolver.GetByAddress(IpAdd, nameResult); + if (err) { + //for behavioural compatibility with Qt 4.7 and unix/windows + //backends: don't report error, return ip address as host name + results.setHostName(address.toString()); + } else { + results.setHostName(qt_TDesC2QString(nameResult().iName)); + } + results.setAddresses(QList<QHostAddress>() << address); + return results; + } + + // IDN support + QByteArray aceHostname = QUrl::toAce(hostName); + results.setHostName(hostName); + if (aceHostname.isEmpty()) { + results.setError(QHostInfo::HostNotFound); + results.setErrorString(hostName.isEmpty() ? + QCoreApplication::translate("QHostInfoAgent", "No host name given") : + QCoreApplication::translate("QHostInfoAgent", "Invalid hostname")); + return results; + } + + + // Call RHostResolver::GetByAddress, and place all IPv4 addresses at the start and + // the IPv6 addresses at the end of the address list in results. + + // Synchronous request. + err = hostResolver.GetByName(qt_QString2TPtrC(QString::fromLatin1(aceHostname)), nameResult); + if (err) { + setError_helper(results, err); + return results; + } + + QList<QHostAddress> hostAddresses; + + TInetAddr hostAdd = nameResult().iAddr; + // 39 is the maximum length of an IPv6 address. + TBuf<39> ipAddr; + + // Fill ipAddr with the IP address from hostAdd + hostAdd.Output(ipAddr); + if (ipAddr.Length() > 0) + hostAddresses.append(QHostAddress(qt_TDesC2QString(ipAddr))); + + // Check if there's more than one IP address linkd to this name + while (hostResolver.Next(nameResult) == KErrNone) { + hostAdd = nameResult().iAddr; + hostAdd.Output(ipAddr); + + // Ensure that record is valid (not an alias and with length greater than 0) + if (!(nameResult().iFlags & TNameRecord::EAlias) && !(hostAdd.IsUnspecified())) { + hostAddresses.append(QHostAddress(qt_TDesC2QString(ipAddr))); + } + } + + hostResolver.Close(); + + results.setAddresses(hostAddresses); + return results; +} + +QHostInfo QHostInfoAgent::fromName(const QString &hostName) +{ + // null shared pointer + QSharedPointer<QNetworkSession> networkSession; + return fromName(hostName, networkSession); +} + +QString QHostInfo::localHostName() +{ + // Connect to ESOCK + RSocketServ socketServ(qt_symbianGetSocketServer()); + RHostResolver hostResolver; + + // RConnection not required to get the host name + int err = hostResolver.Open(socketServ, KAfInet, KProtocolInetUdp); + if (err) + return QString(); + + THostName hostName; + err = hostResolver.GetHostName(hostName); + if (err) + return QString(); + + hostResolver.Close(); + + return qt_TDesC2QString(hostName); +} + +QString QHostInfo::localDomainName() +{ + // This concept does not exist on Symbian OS because the device can be on + // multiple networks with multiple "local domain" names. + // For now, return a null string. + return QString(); +} + + +QSymbianHostResolver::QSymbianHostResolver(const QString &hostName, int identifier, QSharedPointer<QNetworkSession> networkSession) + : CActive(CActive::EPriorityStandard), iHostName(hostName), + iSocketServ(qt_symbianGetSocketServer()), iNetworkSession(networkSession), iResults(identifier) +{ + CActiveScheduler::Add(this); +} + +QSymbianHostResolver::~QSymbianHostResolver() +{ +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::~QSymbianHostResolver" << id(); +#endif + Cancel(); + iHostResolver.Close(); +} + +// Async equivalent to QHostInfoAgent::fromName() +void QSymbianHostResolver::requestHostLookup() +{ + +#if defined(QHOSTINFO_DEBUG) + qDebug("QSymbianHostResolver::requestHostLookup(%s) looking up... (id = %d)", + iHostName.toLatin1().constData(), id()); +#endif + + QSymbianHostInfoLookupManager *manager = QSymbianHostInfoLookupManager::globalInstance(); + if (manager->cache.isEnabled()) { + //check if name has been put in the cache while this request was queued + bool valid; + QHostInfo cachedResult = manager->cache.get(iHostName, &valid); + if (valid) { +#if defined(QHOSTINFO_DEBUG) + qDebug("...found in cache"); +#endif + iResults = cachedResult; + iState = ECompleteFromCache; + SetActive(); + TRequestStatus* stat = &iStatus; + User::RequestComplete(stat, KErrNone); + return; + } + } + + int err; + if (iNetworkSession) { + err = QNetworkSessionPrivate::nativeOpenHostResolver(*iNetworkSession, iHostResolver, KAfInet, KProtocolInetUdp); +#if defined(QHOSTINFO_DEBUG) + qDebug("using resolver from session (err = %d)", err); +#endif + } else { + err = iHostResolver.Open(iSocketServ, KAfInet, KProtocolInetUdp); +#if defined(QHOSTINFO_DEBUG) + qDebug("using default resolver (err = %d)", err); +#endif + } + if (err) { + setError_helper(iResults, err); + } else { + + if (iAddress.setAddress(iHostName)) { + // Reverse lookup + IpAdd.Input(qt_QString2TPtrC(iHostName)); + + // Asynchronous request. + iHostResolver.GetByAddress(IpAdd, iNameResult, iStatus); // <---- ASYNC + iState = EGetByAddress; + + } else { + + // IDN support + QByteArray aceHostname = QUrl::toAce(iHostName); + iResults.setHostName(iHostName); + if (aceHostname.isEmpty()) { + iResults.setError(QHostInfo::HostNotFound); + iResults.setErrorString(iHostName.isEmpty() ? + QCoreApplication::translate("QHostInfoAgent", "No host name given") : + QCoreApplication::translate("QHostInfoAgent", "Invalid hostname")); + + err = KErrArgument; + } else { + iEncodedHostName = QString::fromLatin1(aceHostname); + iHostNamePtr.Set(qt_QString2TPtrC(iEncodedHostName)); + + // Asynchronous request. + iHostResolver.GetByName(iHostNamePtr, iNameResult, iStatus); + iState = EGetByName; + } + } + } + SetActive(); + if (err) { + iHostResolver.Close(); + + //self complete so that RunL can inform manager without causing recursion + iState = EError; + TRequestStatus* stat = &iStatus; + User::RequestComplete(stat, err); + } +} + +void QSymbianHostResolver::abortHostLookup() +{ + if (resultEmitter.thread() == QThread::currentThread()) { +#ifdef QHOSTINFO_DEBUG + qDebug("QSymbianHostResolver::abortHostLookup - deleting %d", id()); +#endif + //normal case, abort from same thread it was started + delete this; //will cancel outstanding request + } else { +#ifdef QHOSTINFO_DEBUG + qDebug("QSymbianHostResolver::abortHostLookup - detaching %d", id()); +#endif + //abort from different thread, carry on but don't report the results + resultEmitter.disconnect(); + } +} + +void QSymbianHostResolver::DoCancel() +{ +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostResolver::DoCancel" << QThread::currentThreadId() << id() << (int)iState << this; +#endif + if (iState == EGetByAddress || iState == EGetByName) { + //these states have made an async request to host resolver + iHostResolver.Cancel(); + } else { + //for the self completing states there is nothing to cancel + Q_ASSERT(iState == EError || iState == ECompleteFromCache); + } +} + +void QSymbianHostResolver::RunL() +{ + QT_TRYCATCH_LEAVING(run()); +} + +void QSymbianHostResolver::run() +{ + switch (iState) { + case EGetByName: + processNameResult(); + break; + case EGetByAddress: + processAddressResult(); + break; + case ECompleteFromCache: + case EError: + returnResults(); + break; + default: + qWarning("QSymbianHostResolver internal error, bad state in run()"); + iResults.setError(QHostInfo::UnknownError); + iResults.setErrorString(QSystemError(KErrCorrupt,QSystemError::NativeError).toString()); + returnResults(); + } +} + +void QSymbianHostResolver::returnResults() +{ +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostResolver::returnResults" << iResults.error() << iResults.errorString(); + foreach (QHostAddress addr, iResults.addresses()) + qDebug() << addr; +#endif + iState = EIdle; + + QSymbianHostInfoLookupManager *manager = QSymbianHostInfoLookupManager::globalInstance(); + if (manager->cache.isEnabled()) { + manager->cache.put(iHostName, iResults); + } + manager->lookupFinished(this); + + resultEmitter.emitResultsReady(iResults); + + delete this; +} + +TInt QSymbianHostResolver::RunError(TInt aError) +{ + QT_TRY { + iState = EIdle; + + QSymbianHostInfoLookupManager *manager = QSymbianHostInfoLookupManager::globalInstance(); + manager->lookupFinished(this); + + setError_helper(iResults, aError); + + resultEmitter.emitResultsReady(iResults); + } + QT_CATCH(...) {} + + delete this; + + return KErrNone; +} + +void QSymbianHostResolver::processNameResult() +{ + if (iStatus.Int() == KErrNone) { + TInetAddr hostAdd = iNameResult().iAddr; + // 39 is the maximum length of an IPv6 address. + TBuf<39> ipAddr; + + hostAdd.Output(ipAddr); + + // Ensure that record is valid (not an alias and with length greater than 0) + if (!(iNameResult().iFlags & TNameRecord::EAlias) && !(hostAdd.IsUnspecified())) { + iHostAddresses.append(QHostAddress(qt_TDesC2QString(ipAddr))); + } + + iState = EGetByName; + iHostResolver.Next(iNameResult, iStatus); + SetActive(); + } + else { + // No more addresses, so return the results (or an error if there aren't any). +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostResolver::processNameResult with err=" << iStatus.Int() << "count=" << iHostAddresses.count(); +#endif + if (iHostAddresses.count() > 0) { + iResults.setAddresses(iHostAddresses); + } else { + iState = EError; + setError_helper(iResults, iStatus.Int()); + } + returnResults(); + } +} + +void QSymbianHostResolver::processAddressResult() +{ + TInt err = iStatus.Int(); + + if (err < 0) { + //For behavioural compatibility with Qt 4.7, don't report errors on reverse lookup, + //return the address as a string (same as unix/windows backends) + iResults.setHostName(iAddress.toString()); + } else { + iResults.setHostName(qt_TDesC2QString(iNameResult().iName)); + } + iResults.setAddresses(QList<QHostAddress>() << iAddress); + returnResults(); +} + + +int QSymbianHostResolver::id() +{ + return iResults.lookupId(); +} + +QSymbianHostInfoLookupManager::QSymbianHostInfoLookupManager() +{ +} + +QSymbianHostInfoLookupManager::~QSymbianHostInfoLookupManager() +{ +} + +void QSymbianHostInfoLookupManager::clear() +{ + QMutexLocker locker(&mutex); +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::clear" << QThread::currentThreadId(); +#endif + foreach (QSymbianHostResolver *hr, iCurrentLookups) + hr->abortHostLookup(); + iCurrentLookups.clear(); + qDeleteAll(iScheduledLookups); + cache.clear(); +} + +void QSymbianHostInfoLookupManager::lookupFinished(QSymbianHostResolver *r) +{ + QMutexLocker locker(&mutex); + +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::lookupFinished" << QThread::currentThreadId() << r->id() << "current" << iCurrentLookups.count() << "queued" << iScheduledLookups.count(); +#endif + // remove finished lookup from array and destroy + TInt count = iCurrentLookups.count(); + for (TInt i = 0; i < count; i++) { + if (iCurrentLookups[i]->id() == r->id()) { + iCurrentLookups.removeAt(i); + break; + } + } + + runNextLookup(); +} + +void QSymbianHostInfoLookupManager::runNextLookup() +{ +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::runNextLookup" << QThread::currentThreadId() << "current" << iCurrentLookups.count() << "queued" << iScheduledLookups.count(); +#endif + // check to see if there are any scheduled lookups + for (int i=0; i<iScheduledLookups.count(); i++) { + QSymbianHostResolver* hostResolver = iScheduledLookups.at(i); + if (hostResolver->resultEmitter.thread() == QThread::currentThread()) { + // if so, move one to the current lookups and run it + iCurrentLookups.append(hostResolver); + iScheduledLookups.removeAt(i); + hostResolver->requestHostLookup(); + // if spare capacity, try to start another one + if (iCurrentLookups.count() >= KMaxConcurrentLookups) + break; + i--; //compensate for removeAt + } + } +} + +// called from QHostInfo +void QSymbianHostInfoLookupManager::scheduleLookup(QSymbianHostResolver* r) +{ + QMutexLocker locker(&mutex); + +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::scheduleLookup" << QThread::currentThreadId() << r->id() << "current" << iCurrentLookups.count() << "queued" << iScheduledLookups.count(); +#endif + // Check to see if we have space on the current lookups pool. + bool defer = false; + if (iCurrentLookups.count() >= KMaxConcurrentLookups) { + // busy, defer unless there are no request in this thread + // at least one active request per thread with queued requests is needed + for (int i=0; i < iCurrentLookups.count();i++) { + if (iCurrentLookups.at(i)->resultEmitter.thread() == QThread::currentThread()) { + defer = true; + break; + } + } + } + if (defer) { + // If no, schedule for later. + iScheduledLookups.append(r); +#if defined(QHOSTINFO_DEBUG) + qDebug(" - scheduled"); +#endif + return; + } else { + // If yes, add it to the current lookups. + iCurrentLookups.append(r); + + // ... and trigger the async call. + r->requestHostLookup(); + } +} + +void QSymbianHostInfoLookupManager::abortLookup(int id) +{ + QMutexLocker locker(&mutex); + +#if defined(QHOSTINFO_DEBUG) + qDebug() << "QSymbianHostInfoLookupManager::abortLookup" << QThread::currentThreadId() << id << "current" << iCurrentLookups.count() << "queued" << iScheduledLookups.count(); +#endif + int i = 0; + // Find the aborted lookup by ID. + // First in the current lookups. + for (i = 0; i < iCurrentLookups.count(); i++) { + if (id == iCurrentLookups[i]->id()) { + QSymbianHostResolver* r = iCurrentLookups.at(i); + iCurrentLookups.removeAt(i); + r->abortHostLookup(); + runNextLookup(); + return; + } + } + // Then in the scheduled lookups. + for (i = 0; i < iScheduledLookups.count(); i++) { + if (id == iScheduledLookups[i]->id()) { + QSymbianHostResolver* r = iScheduledLookups.at(i); + iScheduledLookups.removeAt(i); + delete r; + return; + } + } +} + +QSymbianHostInfoLookupManager* QSymbianHostInfoLookupManager::globalInstance() +{ + return static_cast<QSymbianHostInfoLookupManager*> + (QAbstractHostInfoLookupManager::globalInstance()); +} + +QT_END_NAMESPACE |