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feedbag.cpp
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feedbag.cpp
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/****************************************************************************
**
** Ireen — cross-platform OSCAR protocol library
**
** Copyright © 2012 Ruslan Nigmatullin <[email protected]>
** Alexey Prokhin <[email protected]>
**
*****************************************************************************
**
** $IREEN_BEGIN_LICENSE$
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as
** published by the Free Software Foundation, either version 3
** of the License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with this program. If not, see http://www.gnu.org/licenses/.
** $IREEN_END_LICENSE$
**
****************************************************************************/
#include "feedbag.h"
#include "snac.h"
#include "client_p.h"
#include <QCoreApplication>
#include <QQueue>
#include <QDateTime>
#include <QLatin1String>
Q_DECLARE_METATYPE(Ireen::FeedbagItem)
namespace Ireen {
QString getCompressedName(quint16 type, const QString &name)
{
QString compressedName;
if (type == SsiGroup) {
bool ok = true;
// Check is cheaper
for (int i = 0; ok && i < name.size(); ++i)
ok &= name[i].isLower();
compressedName = ok ? name : name.toLower();
} else {
bool ok = true;
// Check is cheaper
for (int i = 0; ok && i < name.size(); ++i)
ok &= !name[i].isSpace() && name[i].isLower();
if (ok) {
compressedName = name;
} else {
compressedName.reserve(name.size());
for (int i = 0; i < name.size(); ++i) {
const QChar &ch = name.at(i);
if (ch.isSpace())
continue;
compressedName += ch.toLower();
}
}
}
return compressedName;
}
class FeedbagItemPrivate : public QSharedData
{
public:
FeedbagItemPrivate();
FeedbagItemPrivate(Feedbag *bag, quint16 type, quint16 item, quint16 group, const QString &name, bool inList = false);
void send(const FeedbagItem &item, Feedbag::ModifyType operation);
QByteArray data(Feedbag::ModifyType operation) const;
inline void remove(FeedbagItem item);
bool isSendingAllowed(const FeedbagItem &item, Feedbag::ModifyType operation);
quint16 id() const { return itemType == SsiGroup ? groupId : itemId; }
QString configId() const { return QString::number(quint64(quint64(itemType) << 16 | id()) << 32 | groupId); }
QString recordName;
quint16 groupId;
quint16 itemId;
quint16 itemType;
TLVMap tlvs;
Feedbag *feedbag;
bool isInList;
};
struct FeedbagQueueItem
{
FeedbagQueueItem(const FeedbagItem &i, Feedbag::ModifyType t) : item(i), type(t)
{
}
FeedbagQueueItem() : type(static_cast<Feedbag::ModifyType>(0))
{
}
FeedbagItem item;
Feedbag::ModifyType type;
};
typedef QHash<QPair<quint16, QString>, quint16> ItemsNameHash;
struct FeedbagGroup
{
FeedbagItem item;
ItemsNameHash hashByName;
};
typedef QHash<QPair<quint16, quint16>, FeedbagItem> AllItemsHash;
typedef QHash<quint16, FeedbagGroup> GroupHash;
struct FeedbagRootGroup : public FeedbagGroup
{
GroupHash regulars;
};
class FeedbagPrivate
{
Q_DECLARE_PUBLIC(Feedbag)
public:
FeedbagPrivate(Client *client_, Feedbag *q)
: client(client_), q_ptr(q) {}
QList<FeedbagItemHandler*> handlersForItem(const FeedbagItem &item);
void handleItem(FeedbagItem &item, Feedbag::ModifyType type, FeedbagError error);
FeedbagGroup *findGroup(quint16 id);
quint16 generateId() const;
void finishLoading();
static QEvent::Type updateEvent();
FeedbagItemPrivate *getFeedbagItemPrivate(const SNAC &snac);
void updateList();
void updateLocalCache();
AllItemsHash itemsById;
QHash<quint16, QSet<quint16> > itemsByType;
QHash<QString, FeedbagItem> temporaryBuddies;
QList<FeedbagItem> newItems;
FeedbagRootGroup root;
QList<FeedbagQueueItem> modifyQueue;
QList<QList<FeedbagQueueItem> > itemsForRequests;
Client *client;
QHash<quint16, FeedbagItemHandler*> handlers;
uint lastUpdateTime;
bool firstPacket;
QList<quint16> limits;
Feedbag *q_ptr;
};
FeedbagError::FeedbagError(const SNAC &sn)
{
m_error = static_cast<ErrorEnum>(sn.read<quint16>());
}
FeedbagError::FeedbagError(FeedbagError::ErrorEnum error):
m_error(error)
{
}
FeedbagError::ErrorEnum FeedbagError::code()
{
return m_error;
}
QString FeedbagError::errorString()
{
QString errorStr;
if (m_error == NoError)
errorStr = QCoreApplication::translate("FeedbagError", "No error");
if (m_error == ItemNotFound)
errorStr = QCoreApplication::translate("FeedbagError", "Item you want to modify not found in list");
else if (m_error == ItemAlreadyExists)
errorStr = QCoreApplication::translate("FeedbagError", "Item you want to add allready exists");
else if (m_error == CommonError)
errorStr = QCoreApplication::translate("FeedbagError", "Error adding item (invalid id, allready in list, invalid data)");
else if (m_error == LimitExceeded)
errorStr = QCoreApplication::translate("FeedbagError", "Can't add item. Limit for this type of items exceeded");
else if (m_error == AttemtToAddIcqContactToAimList)
errorStr = QCoreApplication::translate("FeedbagError", "Trying to add ICQ contact to an AIM list");
else if (m_error == RequiresAuthorization)
errorStr = QCoreApplication::translate("FeedbagError", "Can't add this contact because it requires authorization");
else
errorStr = QCoreApplication::translate("FeedbagError", "Unknown error (Code: %1)").arg(m_error);
return errorStr;
}
FeedbagItemPrivate::FeedbagItemPrivate() :
feedbag(0), isInList(false)
{
}
FeedbagItemPrivate::FeedbagItemPrivate(Feedbag *bag, quint16 type, quint16 item, quint16 group, const QString &name, bool inList):
feedbag(bag), isInList(inList)
{
itemType = type;
itemId = item;
groupId = group;
recordName = name;
}
void FeedbagItemPrivate::send(const FeedbagItem &item, Feedbag::ModifyType operation)
{
Q_ASSERT(operation == Feedbag::Add || operation == Feedbag::Modify || operation == Feedbag::Remove);
if (!isSendingAllowed(item, operation))
return;
FeedbagPrivate *d = feedbag->d.data();
if (d->modifyQueue.isEmpty())
qApp->postEvent(feedbag, new QEvent(FeedbagPrivate::updateEvent()));
// Optimize changes
for (int i = 0; i < d->modifyQueue.size(); ++i) {
const FeedbagQueueItem &queueItem = d->modifyQueue.at(i);
if (queueItem.item.pairId() == item.pairId()) {
if (queueItem.type == Feedbag::Add && operation == Feedbag::Modify)
operation = Feedbag::Add;
d->modifyQueue.removeAt(i);
if (queueItem.type == Feedbag::Add && operation == Feedbag::Remove)
return;
else
break;
}
}
if (item.type() == SsiBuddy) {
d->temporaryBuddies.insert(getCompressedName(SsiBuddy, item.name()), item);
}
d->modifyQueue.append(FeedbagQueueItem(item, operation));
}
QByteArray FeedbagItemPrivate::data(Feedbag::ModifyType operation) const
{
DataUnit unit;
unit.append<quint16>(recordName);
unit.append<quint16>(groupId);
unit.append<quint16>(itemId);
unit.append<quint16>(itemType);
if (operation != Feedbag::Remove) {
unit.append<quint16>(tlvs.valuesSize());
unit.append(tlvs);
} else {
unit.append<quint16>(0);
}
return unit;
}
void FeedbagItemPrivate::remove(FeedbagItem item)
{
item.d->tlvs.clear();
isInList = false;
send(item, Feedbag::Remove);
}
bool FeedbagItemPrivate::isSendingAllowed(const FeedbagItem &item, Feedbag::ModifyType operation)
{
FeedbagPrivate *d = feedbag->d.data();
if (!d->client->isConnected()) {
warning() << "Trying to send the feedbag item while offline:" << item;
return false;
}
if (operation == Feedbag::Add) {
quint16 limit = d->limits.value(item.type());
if (limit > 0 && d->itemsByType.value(item.type()).size() >= limit) {
warning() << "Limit for feedbag item type" << item.type() << "exceeded";
return false;
}
}
return true;
}
FeedbagItem::FeedbagItem():
d(0)
{
}
FeedbagItem::FeedbagItem(Feedbag *feedbag, quint16 type, quint16 itemId, quint16 groupId, const QString &name):
d(new FeedbagItemPrivate(feedbag, type, itemId, groupId, name))
{
}
FeedbagItem::FeedbagItem(FeedbagItemPrivate *d):
d(d)
{
}
FeedbagItem::FeedbagItem(const FeedbagItem &item) :
d(item.d)
{
}
FeedbagItem::~FeedbagItem()
{
}
const FeedbagItem &FeedbagItem::operator=(const FeedbagItem &item)
{
d = item.d;
return *this;
}
void FeedbagItem::add()
{
Q_ASSERT(!isInList());
const FeedbagItem &item = *this;
d->send(item, Feedbag::Add);
d->isInList = true;
}
void FeedbagItem::update()
{
Q_ASSERT(isInList());
const FeedbagItem &item = *this;
d->send(item, Feedbag::Modify);
d->isInList = true;
}
void FeedbagItem::updateOrAdd()
{
const FeedbagItem &item = *this;
Feedbag::ModifyType op = d->isInList ? Feedbag::Modify : Feedbag::Add;
d->send(item, op);
d->isInList = true;
}
void FeedbagItem::remove()
{
Q_ASSERT(isInList());
const FeedbagItem &item = *this;
d->send(item, Feedbag::Remove);
d->isInList = false;
}
void FeedbagItem::clear()
{
d = QSharedDataPointer<FeedbagItemPrivate>();
}
Feedbag *FeedbagItem::feedbag() const
{
return d->feedbag;
}
bool FeedbagItem::isInList() const
{
return !isNull() && d->isInList;
}
void FeedbagItem::setInList(bool inList)
{
d->isInList = inList;
}
bool FeedbagItem::isEmpty() const
{
return isNull();
}
bool FeedbagItem::isNull() const
{
return d.data() == 0;
}
void FeedbagItem::setName(const QString &name)
{
d->recordName = name;
}
void FeedbagItem::setId(quint16 itemId)
{
d->itemId = itemId;
}
void FeedbagItem::setGroup(quint16 groupId)
{
d->groupId = groupId;
}
void FeedbagItem::setField(quint16 field)
{
d->tlvs.insert(field);
}
void FeedbagItem::setField(const TLV &tlv)
{
d->tlvs.insert(tlv);
}
bool FeedbagItem::removeField(quint16 field)
{
return d->tlvs.remove(field) > 0;
}
QString FeedbagItem::name() const
{
return d->recordName;
}
quint16 FeedbagItem::type() const
{
return d->itemType;
}
quint16 FeedbagItem::itemId() const
{
return d->itemId;
}
quint16 FeedbagItem::groupId() const
{
return d->groupId;
}
QPair<quint16, quint16> FeedbagItem::pairId() const
{
return qMakePair(d->itemType, d->id());
}
QPair<quint16, QString> FeedbagItem::pairName() const
{
return qMakePair(d->itemType, getCompressedName(d->itemType, d->recordName));
}
TLV FeedbagItem::field(quint16 field) const
{
return d->tlvs.value(field);
}
bool FeedbagItem::containsField(quint16 field) const
{
return d->tlvs.contains(field);
}
TLVMap &FeedbagItem::data()
{
return d->tlvs;
}
const TLVMap &FeedbagItem::constData() const
{
return d->tlvs;
}
void FeedbagItem::setData(const TLVMap &tlvs)
{
d->tlvs = tlvs;
}
bool FeedbagItem::operator==(const FeedbagItem &rhs) const
{
const FeedbagItemPrivate *rd = rhs.d;
return (d->itemType == rd->itemType &&
d->itemId == rd->itemId &&
d->groupId == rd->groupId);
}
QDataStream &operator<<(QDataStream &out, const FeedbagItem &item)
{
out << item.d->recordName << item.d->itemId
<< item.d->groupId << item.d->itemType
<< item.d->tlvs.count();
TLVMap::const_iterator itr = item.d->tlvs.constBegin();
TLVMap::const_iterator endItr = item.d->tlvs.constEnd();
while (itr != endItr) {
out << itr.key() << itr.value().data();
++itr;
}
return out;
}
QDataStream &operator>>(QDataStream &in, FeedbagItem &item)
{
item.d = new FeedbagItemPrivate();
in >> item.d->recordName >> item.d->itemId >> item.d->groupId >> item.d->itemType;
int count;
in >> count;
for (int i = 0; i < count; ++i) {
quint16 id;
QByteArray data;
in >> id >> data;
item.d->tlvs.insert(id, data);
}
return in;
}
QDebug &operator<<(QDebug &stream, Feedbag::ModifyType type)
{
switch (type) {
case Feedbag::Add:
stream.nospace() << "Feedbag::Add";
break;
case Feedbag::Modify:
stream.nospace() << "Feedbag::Modify";
break;
case Feedbag::Remove:
stream.nospace() << "Feedbag::Remove";
break;
default:
stream.nospace() << "Feedbag::UnknownType";
break;
}
return stream;
}
static bool handlerLessThan(FeedbagItemHandler *lhs, FeedbagItemHandler *rhs)
{
return lhs->priority() > rhs->priority();
}
QList<FeedbagItemHandler*> FeedbagPrivate::handlersForItem(const FeedbagItem &item)
{
QList<FeedbagItemHandler*> suitableHandlers = handlers.values(item.type());
if (suitableHandlers.count() > 1)
qSort(suitableHandlers.begin(), suitableHandlers.end(), &handlerLessThan);
return suitableHandlers;
}
void FeedbagPrivate::handleItem(FeedbagItem &item, Feedbag::ModifyType type, FeedbagError error)
{
Q_Q(Feedbag);
if (!handlers.contains(item.type())) {
debug() << "The feedbag item ignored:" << item;
return;
}
const QPair<quint16, quint16> id = item.pairId();
const bool hasError = (error.code() != FeedbagError::NoError);
if (hasError)
item.d->isInList = type == Feedbag::Remove;
else
item.d->isInList = type != Feedbag::Remove;
// If a group has been removed, remove its subitems first
if (type == Feedbag::Remove && item.type() == SsiGroup && !hasError) {
foreach (FeedbagItem subitem, itemsById) {
if (subitem.type() != SsiGroup && subitem.groupId() == item.groupId())
handleItem(subitem, type, error);
}
}
// Handle the item.
bool found = false;
foreach (FeedbagItemHandler *handler, handlersForItem(item))
found |= handler->handleFeedbagItem(q, item, type, error);
if (!found) {
if (error == FeedbagError::NoError) {
if (type == Feedbag::Remove) {
debug(DebugVerbose) << "The feedbag item has been removed:" << item;
} else if (type == Feedbag::Modify) {
debug(DebugVerbose) << "The feedbag item has been updated:" << item;
} else {
debug(DebugVerbose) << "The feedbag item has been added:" << item;
}
} else {
if (type == Feedbag::Remove) {
debug(DebugVerbose).nospace() << "The feedbag item has not been removed: "
<< error.errorString() << ". (" << error.code() << ")" << item;
} else if (type == Feedbag::Modify) {
debug(DebugVerbose) << "The feedbag item has not been updated:"
<< error.errorString() << ". (" << error.code() << ")" << item;
} else {
debug(DebugVerbose) << "The feedbag item has not been added:"
<< error.errorString() << ". (" << error.code() << ")" << item;
}
}
}
// Store the item into local copy.
// Notice that some handlers (like roster) relying on the operation
// being performed after the handlers are called.
if (!hasError) {
if (type == Feedbag::Remove) {
itemsById.remove(id);
if (item.type() == SsiGroup) {
root.regulars.remove(item.groupId());
} else {
FeedbagGroup *group = findGroup(item.groupId());
Q_ASSERT(!group->item.isNull());
group->hashByName.remove(item.pairName());
}
emit q->itemRemoved(item);
} else {
itemsById.insert(id, item);
FeedbagGroup *group = findGroup(item.groupId());
if (item.type() == SsiGroup) {
group->item = item;
root.hashByName.insert(item.pairName(), item.groupId());
} else {
Q_ASSERT(!group->item.isNull());
group->hashByName.insert(item.pairName(), item.itemId());
}
if (type == Feedbag::Modify)
q->itemUpdated(item);
else
q->itemAdded(item);
}
}
}
FeedbagGroup *FeedbagPrivate::findGroup(quint16 id)
{
if (id == 0)
return &root;
return &root.regulars[id];
}
quint16 FeedbagPrivate::generateId() const
{
return rand() & 0x7fff; //0x03e6;
}
void FeedbagPrivate::finishLoading()
{
Q_Q(Feedbag);
SNAC snac(ListsFamily, ListsGotList);
client->send(snac); // Roster ack
emit q->loaded();
}
QEvent::Type FeedbagPrivate::updateEvent()
{
static QEvent::Type type = static_cast<QEvent::Type>(QEvent::registerEventType());
return type;
}
FeedbagItemPrivate *FeedbagPrivate::getFeedbagItemPrivate(const SNAC &snac)
{
QString recordName = snac.read<QString, quint16>(Util::utf8Codec());
quint16 groupId = snac.read<quint16>();
quint16 itemId = snac.read<quint16>();
quint16 itemType = snac.read<quint16>();
if (!handlers.contains(itemType)) {
// TODO: add better debugging.
debug() << "The feedbag item ignored with type" << itemType << "and name" << recordName;
snac.skipData(snac.read<quint16>());
return 0;
}
FeedbagItemPrivate *item = new FeedbagItemPrivate(q_func(), itemType, itemId, groupId, recordName);
item->tlvs = snac.read<DataUnit, quint16>().read<TLVMap>();
return item;
}
void FeedbagPrivate::updateList()
{
if (modifyQueue.isEmpty())
return;
temporaryBuddies.clear();
client->sendSnac(ListsFamily, ListsCliModifyStart);
SNAC snac;
QList<FeedbagQueueItem> items;
debug() << "Trying to change" << modifyQueue.size() << "items:";
for (int i = 0; i <= modifyQueue.size(); ++i) {
const FeedbagQueueItem *item = i < modifyQueue.size() ? &modifyQueue.at(i) : 0;
if (item)
debug() << item->type << item->item;
QByteArray data = item ? item->item.d->data(item->type) : QByteArray();
if (!item || item->type != snac.subtype() || !snac.canAppend(data.size())) {
if (!items.isEmpty()) {
itemsForRequests.append(items);
items.clear();
client->send(snac);
}
if (item) {
snac = SNAC(ListsFamily, item->type);
items.append(*item);
}
}
snac.append(data);
}
client->sendSnac(ListsFamily, ListsCliModifyEnd);
modifyQueue.clear();
}
void FeedbagPrivate::updateLocalCache()
{
QList<FeedbagItem> upToDateItems;
qSwap(newItems, upToDateItems);
AllItemsHash allItems;
allItems = itemsById;
itemsById.reserve(upToDateItems.size());
const FeedbagError noError(FeedbagError::NoError);
foreach (FeedbagItem item, upToDateItems) {
const QPair<quint16, quint16> id = item.pairId();
FeedbagItem oldItem = allItems.take(id);
Feedbag::ModifyType type = oldItem.isNull() ? Feedbag::Add : Feedbag::Modify;
handleItem(item, type, noError);
}
for (AllItemsHash::Iterator it = allItems.begin(); it != allItems.end(); ++it)
handleItem(it.value(), Feedbag::Remove, noError);
newItems.clear();
}
Feedbag::Feedbag(Client *client):
QObject(client), d(new FeedbagPrivate(client, this))
{
//qRegisterMetaTypeStreamOperators<Ireen::FeedbagItem>("Ireen::FeedbagItem");
m_infos << SNACInfo(ListsFamily, ListsError)
<< SNACInfo(ServiceFamily, ServiceServerAsksServices)
<< SNACInfo(ListsFamily, ListsUpToDate)
<< SNACInfo(ListsFamily, ListsList)
<< SNACInfo(ListsFamily, ListsUpdateGroup)
<< SNACInfo(ListsFamily, ListsAddToList)
<< SNACInfo(ListsFamily, ListsRemoveFromList)
<< SNACInfo(ListsFamily, ListsAck)
<< SNACInfo(ListsFamily, ListsCliModifyStart)
<< SNACInfo(ListsFamily, ListsCliModifyEnd)
<< SNACInfo(ListsFamily, ListsSrvReplyLists);
QList<SNACInfo> m_initSnacs;
m_initSnacs << SNACInfo(ListsFamily, ListsCliCheck)
<< SNACInfo(ListsFamily, ListsCliRequest)
<< SNACInfo(ListsFamily, ListsCliReqLists)
<< SNACInfo(ListsFamily, ListsGotList);
client->registerInitializationSnacs(m_initSnacs);
connect(client, SIGNAL(disconnected()), SLOT(onDisconnected()));
client->d_func()->setFeedbag(this);
}
Feedbag::~Feedbag()
{
}
void Feedbag::setCache(const QList<FeedbagItem> &cache)
{
Q_ASSERT(d->itemsById.isEmpty());
foreach (FeedbagItem item, cache) {
item.d->feedbag = this;
item.d->isInList = true;
d->itemsById.insert(item.pairId(), item);
d->itemsByType[item.type()].insert(item.d->id());
FeedbagGroup *group = d->findGroup(item.groupId());
if (item.type() == SsiGroup) {
group->item = item;
d->root.hashByName.insert(item.pairName(), item.groupId());
foreach (FeedbagItemHandler *handler, d->handlersForItem(item))
handler->handleFeedbagItem(this, item, Add, FeedbagError::NoError);
} else {
group->hashByName.insert(item.pairName(), item.itemId());
}
}
foreach (const FeedbagItem &item, d->itemsById) {
if (item.type() == SsiGroup)
continue;
foreach (FeedbagItemHandler *handler, d->handlersForItem(item))
handler->handleFeedbagItem(this, item, Add, FeedbagError::NoError);
}
}
QList<FeedbagItem> Feedbag::allItems() const
{
return d->itemsById.values();
}
bool Feedbag::event(QEvent *ev)
{
if (ev->type() == FeedbagPrivate::updateEvent()) {
d->updateList();
return true;
}
return QObject::event(ev);
}
bool Feedbag::removeItem(quint16 type, quint16 id)
{
FeedbagItem item = d->itemsById.value(qMakePair(type, id));
if (!item.isNull())
item.remove();
return !item.isNull();
}
bool Feedbag::removeItem(quint16 type, const QString &name)
{
QList<FeedbagItem> list = items(type, name);
foreach (FeedbagItem item, list)
item.remove();
return !list.isEmpty();
}
FeedbagItem Feedbag::buddyForChange(const QString &uin) const
{
QString uiniqueName = getCompressedName(SsiBuddy, uin);
FeedbagItem item = d->temporaryBuddies.value(uiniqueName);
if (item.isNull())
item = items(SsiBuddy, uiniqueName, GenerateId).value(0);
return item;
}
FeedbagItem Feedbag::itemByType(quint16 type, ItemLoadFlags flags) const
{
QSet<quint16> &ids = d->itemsByType[type];
if (!ids.isEmpty()) {
FeedbagItem item = d->itemsById.value(qMakePair(type, *ids.begin()));
Q_ASSERT(!item.isNull());
return item;
}
if (flags & CreateItem) {
quint16 id = 0;
if (flags & GenerateId)
id = uniqueItemId(type);
return FeedbagItem(const_cast<Feedbag*>(this), type,
type == SsiGroup ? 0 : id,
type == SsiGroup ? id : 0, "");
}
return FeedbagItem();
}
FeedbagItem Feedbag::item(quint16 type, quint16 id, quint16 group, ItemLoadFlags flags) const
{
if (!(flags & DontLoadLocal)) {
FeedbagItem item = d->itemsById.value(qMakePair(type, id));
if (!item.isNull())
return item;
}
if (flags & CreateItem) {
if (flags & GenerateId)
id = uniqueItemId(type);
return FeedbagItem(const_cast<Feedbag*>(this), type,
type == SsiGroup ? 0 : id,
type == SsiGroup ? id : group, "");
}
return FeedbagItem();
}
FeedbagItem Feedbag::item(quint16 type, const QString &name, quint16 group, ItemLoadFlags flags) const
{
QString uniqueName = getCompressedName(type, name);
if (!(flags & DontLoadLocal)) {
FeedbagGroup *groupStruct = d->findGroup(type == SsiBuddy ? group : 0);
ItemsNameHash::ConstIterator it = groupStruct->hashByName.constFind(qMakePair(type, uniqueName));
if (it != groupStruct->hashByName.constEnd()) {
const quint16 id = it.value();
FeedbagItem item = d->itemsById.value(qMakePair(type, id));
if (!item.isNull())
return item;
}
}
if (flags & CreateItem) {
return FeedbagItem(const_cast<Feedbag*>(this), type,
type != SsiGroup ? uniqueItemId(type) : 0,
type == SsiGroup ? uniqueItemId(type) : group,
name);
}
return FeedbagItem();
}
FeedbagItem Feedbag::item(quint16 type, const QString &name, ItemLoadFlags flags) const
{
return items(type, name, flags | ReturnOne).value(0);
}
QList<FeedbagItem> Feedbag::items(quint16 type, const QString &name, ItemLoadFlags flags) const
{
QList<FeedbagItem> items;
const QString uniqueName = getCompressedName(type, name);
if (!(flags & DontLoadLocal)) {
if (type == SsiBuddy) {
for (GroupHash::Iterator it = d->root.regulars.begin();
it != d->root.regulars.end(); ++it) {
ItemsNameHash::ConstIterator jt = it.value().hashByName.constFind(qMakePair(type, uniqueName));
if (jt != it.value().hashByName.constEnd()) {
const quint16 id = jt.value();
FeedbagItem item = d->itemsById.value(qMakePair(type, id));
if (!item.isNull()) {
items << item;
if (flags & ReturnOne)
return items;
}
}
}
} else {
ItemsNameHash::ConstIterator it = d->root.hashByName.constFind(qMakePair(type, uniqueName));
if (it != d->root.hashByName.constEnd()) {
const quint16 id = it.value();
FeedbagItem item = d->itemsById.value(qMakePair(type, id));
if (!item.isNull()) {
items << item;
if (flags & ReturnOne)
return items;
}
}
}
}
if (items.isEmpty() && (flags & CreateItem)) {
items << FeedbagItem(const_cast<Feedbag*>(this), type,
type != SsiGroup ? uniqueItemId(type) : 0,
type == SsiGroup ? uniqueItemId(type) : 0,
name);
}
return items;
}
FeedbagItem Feedbag::groupItem(quint16 id, ItemLoadFlags flags) const
{
return item(SsiGroup, id, 0, flags | ReturnOne);
}
FeedbagItem Feedbag::groupItem(const QString &name, ItemLoadFlags flags) const
{
QList<FeedbagItem> list = items(SsiGroup, name, flags | ReturnOne);
if (list.isEmpty())
return FeedbagItem();
return list.first();
}
bool Feedbag::containsItem(quint16 type, quint16 id) const
{
return d->itemsById.contains(qMakePair(type, id));
}
bool Feedbag::containsItem(quint16 type, const QString &name) const
{
const QString uniqueName = getCompressedName(type, name);
if (type == SsiBuddy) {
for (GroupHash::Iterator it = d->root.regulars.begin();
it != d->root.regulars.end(); ++it) {
if (it.value().hashByName.contains(qMakePair(type, uniqueName)))
return true;
}
return false;
} else {
return d->root.hashByName.contains(qMakePair(type, uniqueName));
}
}
quint16 Feedbag::uniqueItemId(quint16 type) const
{
forever {
quint16 id = d->generateId();
if (d->itemsById.contains(qMakePair(type, id)))
continue;
if (type == SsiBuddy) {
bool ok = true;
foreach (const FeedbagItem &item, d->temporaryBuddies) {
if (item.itemId() == id) {
ok = false;
break;
}
}
if (!ok)
continue;
}
return id;
}
}
void Feedbag::registerHandler(FeedbagItemHandler *handler)
{
const QSet<quint16> &types = handler->types();
foreach (quint16 type, types)
d->handlers.insertMulti(type, handler);
if (types.contains(SsiGroup)) {
foreach (quint16 id, d->itemsByType.value(SsiGroup)) {
const FeedbagItem item = d->itemsById.value(qMakePair(quint16(SsiGroup), id));
if (types.contains(item.type()))
handler->handleFeedbagItem(this, item, Add, FeedbagError::NoError);
}
}
for (AllItemsHash::Iterator it = d->itemsById.begin(); it != d->itemsById.end(); ++it) {
const quint16 type = it.key().first;
if (type != SsiGroup && types.contains(type)) {
const FeedbagItem &item = it.value();
handler->handleFeedbagItem(this, item, Add, FeedbagError::NoError);
}
}
}
Client *Feedbag::client() const
{
return d->client;
}
void Feedbag::handleSNAC(AbstractConnection *conn, const SNAC &sn)
{
Q_ASSERT(conn == d->client);
switch ((sn.family() << 16) | sn.subtype()) {
case ListsFamily << 16 | ListsError: {
ProtocolError error(sn);
debug() << QString("Error (%1, %2): %3")
.arg(error.code(), 2, 16)
.arg(error.subcode(), 2, 16)
.arg(error.errorString());
break;
}
case ServiceFamily << 16 | ServiceServerAsksServices: {
// Request server-stored information (SSI) service limitations
SNAC snac(ListsFamily, ListsCliReqLists);
snac.appendTLV<quint16>(0x0B, 0x000F); // mimic ICQ 6
conn->send(snac);
// Requesting roster
if (d->lastUpdateTime > 0) {
snac.reset(ListsFamily, ListsCliCheck);
snac.append<quint32>(d->lastUpdateTime);
snac.append<quint16>(d->itemsById.size());
conn->send(snac);
} else {
snac.reset(ListsFamily, ListsCliRequest);
conn->send(snac);
}