792 lines
24 KiB
C++
792 lines
24 KiB
C++
/*
|
|
* Squawk messenger.
|
|
* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU 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 General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "archive.h"
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <QStandardPaths>
|
|
#include <QDebug>
|
|
#include <QDataStream>
|
|
#include <QDir>
|
|
|
|
Core::Archive::Archive(const QString& p_jid, QObject* parent):
|
|
QObject(parent),
|
|
jid(p_jid),
|
|
opened(false),
|
|
fromTheBeginning(false),
|
|
environment(),
|
|
main(),
|
|
order(),
|
|
stats(),
|
|
avatars()
|
|
{
|
|
}
|
|
|
|
Core::Archive::~Archive()
|
|
{
|
|
close();
|
|
}
|
|
|
|
void Core::Archive::open(const QString& account)
|
|
{
|
|
if (!opened) {
|
|
mdb_env_create(&environment);
|
|
QString path(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
|
|
path += "/" + account + "/" + jid;
|
|
QDir cache(path);
|
|
|
|
if (!cache.exists()) {
|
|
bool res = cache.mkpath(path);
|
|
if (!res) {
|
|
throw Directory(path.toStdString());
|
|
}
|
|
}
|
|
|
|
mdb_env_set_maxdbs(environment, 5);
|
|
mdb_env_set_mapsize(environment, 512UL * 1024UL * 1024UL);
|
|
mdb_env_open(environment, path.toStdString().c_str(), 0, 0664);
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
mdb_dbi_open(txn, "main", MDB_CREATE, &main);
|
|
mdb_dbi_open(txn, "order", MDB_CREATE | MDB_INTEGERKEY, &order);
|
|
mdb_dbi_open(txn, "stats", MDB_CREATE, &stats);
|
|
mdb_dbi_open(txn, "avatars", MDB_CREATE, &avatars);
|
|
mdb_txn_commit(txn);
|
|
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
try {
|
|
fromTheBeginning = getStatBoolValue("beginning", txn);
|
|
} catch (const NotFound& e) {
|
|
fromTheBeginning = false;
|
|
}
|
|
|
|
std::string sJid = jid.toStdString();
|
|
AvatarInfo info;
|
|
bool hasAvatar = readAvatarInfo(info, sJid, txn);
|
|
mdb_txn_abort(txn);
|
|
|
|
if (hasAvatar) {
|
|
QFile ava(path + "/" + sJid.c_str() + "." + info.type);
|
|
if (!ava.exists()) {
|
|
bool success = dropAvatar(sJid);
|
|
if (!success) {
|
|
qDebug() << "error opening archive" << jid << "for account" << account
|
|
<< ". There is supposed to be avatar but the file doesn't exist, couldn't even drop it, it surely will lead to an error";
|
|
}
|
|
}
|
|
}
|
|
|
|
opened = true;
|
|
}
|
|
}
|
|
|
|
void Core::Archive::close()
|
|
{
|
|
if (opened) {
|
|
mdb_dbi_close(environment, avatars);
|
|
mdb_dbi_close(environment, stats);
|
|
mdb_dbi_close(environment, order);
|
|
mdb_dbi_close(environment, main);
|
|
mdb_env_close(environment);
|
|
opened = false;
|
|
}
|
|
}
|
|
|
|
bool Core::Archive::addElement(const Shared::Message& message)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("addElement", jid.toStdString());
|
|
}
|
|
QByteArray ba;
|
|
QDataStream ds(&ba, QIODevice::WriteOnly);
|
|
message.serialize(ds);
|
|
quint64 stamp = message.getTime().toMSecsSinceEpoch();
|
|
const std::string& id = message.getId().toStdString();
|
|
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
lmdbData.mv_size = ba.size();
|
|
lmdbData.mv_data = (uint8_t*)ba.data();
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
int rc;
|
|
rc = mdb_put(txn, main, &lmdbKey, &lmdbData, MDB_NOOVERWRITE);
|
|
if (rc == 0) {
|
|
MDB_val orderKey;
|
|
orderKey.mv_size = 8;
|
|
orderKey.mv_data = (uint8_t*) &stamp;
|
|
|
|
rc = mdb_put(txn, order, &orderKey, &lmdbKey, 0);
|
|
if (rc) {
|
|
qDebug() << "An element couldn't be inserted into the index" << mdb_strerror(rc);
|
|
mdb_txn_abort(txn);
|
|
return false;
|
|
} else {
|
|
rc = mdb_txn_commit(txn);
|
|
if (rc) {
|
|
qDebug() << "A transaction error: " << mdb_strerror(rc);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
} else {
|
|
qDebug() << "An element couldn't been added to the archive, skipping" << mdb_strerror(rc);
|
|
mdb_txn_abort(txn);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void Core::Archive::clear()
|
|
{
|
|
if (!opened) {
|
|
throw Closed("clear", jid.toStdString());
|
|
}
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
mdb_drop(txn, main, 0);
|
|
mdb_drop(txn, order, 0);
|
|
mdb_drop(txn, stats, 0);
|
|
mdb_txn_commit(txn);
|
|
}
|
|
|
|
Shared::Message Core::Archive::getElement(const QString& id)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("getElement", jid.toStdString());
|
|
}
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
|
|
try {
|
|
Shared::Message msg = getMessage(id.toStdString(), txn);
|
|
mdb_txn_abort(txn);
|
|
return msg;
|
|
} catch (...) {
|
|
mdb_txn_abort(txn);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
Shared::Message Core::Archive::getMessage(const std::string& id, MDB_txn* txn)
|
|
{
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
int rc = mdb_get(txn, main, &lmdbKey, &lmdbData);
|
|
|
|
if (rc == 0) {
|
|
QByteArray ba((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
QDataStream ds(&ba, QIODevice::ReadOnly);
|
|
|
|
Shared::Message msg;
|
|
msg.deserialize(ds);
|
|
|
|
return msg;
|
|
} else if (rc == MDB_NOTFOUND) {
|
|
throw NotFound(id, jid.toStdString());
|
|
} else {
|
|
throw Unknown(jid.toStdString(), mdb_strerror(rc));
|
|
}
|
|
}
|
|
|
|
void Core::Archive::setMessageState(const QString& id, Shared::Message::State state)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("setMessageState", jid.toStdString());
|
|
}
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
|
|
std::string strId(id.toStdString());
|
|
try {
|
|
Shared::Message msg = getMessage(strId, txn);
|
|
msg.setState(state);
|
|
|
|
MDB_val lmdbKey, lmdbData;
|
|
QByteArray ba;
|
|
QDataStream ds(&ba, QIODevice::WriteOnly);
|
|
msg.serialize(ds);
|
|
lmdbKey.mv_size = strId.size();
|
|
lmdbKey.mv_data = (char*)strId.c_str();
|
|
lmdbData.mv_size = ba.size();
|
|
lmdbData.mv_data = (uint8_t*)ba.data();
|
|
int rc = mdb_put(txn, main, &lmdbKey, &lmdbData, 0);
|
|
if (rc == 0) {
|
|
rc = mdb_txn_commit(txn);
|
|
} else {
|
|
mdb_txn_abort(txn);
|
|
throw Unknown(jid.toStdString(), mdb_strerror(rc));
|
|
}
|
|
|
|
} catch (...) {
|
|
mdb_txn_abort(txn);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
Shared::Message Core::Archive::newest()
|
|
{
|
|
QString id = newestId();
|
|
return getElement(id);
|
|
}
|
|
|
|
QString Core::Archive::newestId()
|
|
{
|
|
if (!opened) {
|
|
throw Closed("newestId", jid.toStdString());
|
|
}
|
|
MDB_txn *txn;
|
|
int rc;
|
|
rc = mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
MDB_cursor* cursor;
|
|
rc = mdb_cursor_open(txn, order, &cursor);
|
|
MDB_val lmdbKey, lmdbData;
|
|
|
|
rc = mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_LAST);
|
|
if (rc) {
|
|
qDebug() << "Error geting newestId " << mdb_strerror(rc);
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
throw Empty(jid.toStdString());
|
|
} else {
|
|
std::string sId((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
return sId.c_str();
|
|
}
|
|
}
|
|
|
|
QString Core::Archive::oldestId()
|
|
{
|
|
if (!opened) {
|
|
throw Closed("oldestId", jid.toStdString());
|
|
}
|
|
MDB_txn *txn;
|
|
int rc;
|
|
rc = mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
MDB_cursor* cursor;
|
|
rc = mdb_cursor_open(txn, order, &cursor);
|
|
MDB_val lmdbKey, lmdbData;
|
|
|
|
rc = mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_FIRST);
|
|
if (rc) {
|
|
qDebug() << "Error geting oldestId " << mdb_strerror(rc);
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
throw Empty(jid.toStdString());
|
|
} else {
|
|
std::string sId((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
return sId.c_str();
|
|
}
|
|
}
|
|
|
|
Shared::Message Core::Archive::oldest()
|
|
{
|
|
return getElement(oldestId());
|
|
}
|
|
|
|
unsigned int Core::Archive::addElements(const std::list<Shared::Message>& messages)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("addElements", jid.toStdString());
|
|
}
|
|
|
|
int success = 0;
|
|
int rc = 0;
|
|
MDB_val lmdbKey, lmdbData;
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
std::list<Shared::Message>::const_iterator itr = messages.begin();
|
|
while (rc == 0 && itr != messages.end()) {
|
|
const Shared::Message& message = *itr;
|
|
|
|
QByteArray ba;
|
|
QDataStream ds(&ba, QIODevice::WriteOnly);
|
|
message.serialize(ds);
|
|
quint64 stamp = message.getTime().toMSecsSinceEpoch();
|
|
const std::string& id = message.getId().toStdString();
|
|
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
lmdbData.mv_size = ba.size();
|
|
lmdbData.mv_data = (uint8_t*)ba.data();
|
|
|
|
rc = mdb_put(txn, main, &lmdbKey, &lmdbData, MDB_NOOVERWRITE);
|
|
if (rc == 0) {
|
|
MDB_val orderKey;
|
|
orderKey.mv_size = 8;
|
|
orderKey.mv_data = (uint8_t*) &stamp;
|
|
|
|
rc = mdb_put(txn, order, &orderKey, &lmdbKey, 0);
|
|
if (rc) {
|
|
qDebug() << "An element couldn't be inserted into the index, aborting the transaction" << mdb_strerror(rc);
|
|
} else {
|
|
//qDebug() << "element added with id" << message.getId() << "stamp" << message.getTime();
|
|
success++;
|
|
}
|
|
} else {
|
|
if (rc == MDB_KEYEXIST) {
|
|
rc = 0;
|
|
} else {
|
|
qDebug() << "An element couldn't been added to the archive, aborting the transaction" << mdb_strerror(rc);
|
|
}
|
|
}
|
|
itr++;
|
|
}
|
|
|
|
if (rc != 0) {
|
|
mdb_txn_abort(txn);
|
|
success = 0;
|
|
} else {
|
|
mdb_txn_commit(txn);
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
long unsigned int Core::Archive::size() const
|
|
{
|
|
if (!opened) {
|
|
throw Closed("size", jid.toStdString());
|
|
}
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
MDB_stat stat;
|
|
mdb_stat(txn, order, &stat);
|
|
mdb_txn_abort(txn);
|
|
return stat.ms_entries;
|
|
}
|
|
|
|
std::list<Shared::Message> Core::Archive::getBefore(int count, const QString& id)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("getBefore", jid.toStdString());
|
|
}
|
|
std::list<Shared::Message> res;
|
|
MDB_cursor* cursor;
|
|
MDB_txn *txn;
|
|
MDB_val lmdbKey, lmdbData;
|
|
int rc;
|
|
rc = mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
rc = mdb_cursor_open(txn, order, &cursor);
|
|
if (id == "") {
|
|
rc = mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_LAST);
|
|
if (rc) {
|
|
qDebug() << "Error getting before" << mdb_strerror(rc) << ", id:" << id;
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
|
|
throw Empty(jid.toStdString());
|
|
}
|
|
} else {
|
|
std::string stdId(id.toStdString());
|
|
try {
|
|
Shared::Message msg = getMessage(stdId, txn);
|
|
quint64 stamp = msg.getTime().toMSecsSinceEpoch();
|
|
lmdbKey.mv_data = (quint8*)&stamp;
|
|
lmdbKey.mv_size = 8;
|
|
|
|
rc = mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_SET);
|
|
|
|
if (rc) {
|
|
qDebug() << "Error getting before: couldn't set " << mdb_strerror(rc);
|
|
throw NotFound(stdId, jid.toStdString());
|
|
} else {
|
|
rc = mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_PREV);
|
|
if (rc) {
|
|
qDebug() << "Error getting before, couldn't prev " << mdb_strerror(rc);
|
|
throw NotFound(stdId, jid.toStdString());
|
|
}
|
|
}
|
|
|
|
} catch (...) {
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
do {
|
|
MDB_val dKey, dData;
|
|
dKey.mv_size = lmdbData.mv_size;
|
|
dKey.mv_data = lmdbData.mv_data;
|
|
rc = mdb_get(txn, main, &dKey, &dData);
|
|
if (rc) {
|
|
qDebug() <<"Get error: " << mdb_strerror(rc);
|
|
std::string sId((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
throw NotFound(sId, jid.toStdString());
|
|
} else {
|
|
QByteArray ba((char*)dData.mv_data, dData.mv_size);
|
|
QDataStream ds(&ba, QIODevice::ReadOnly);
|
|
|
|
res.emplace_back();
|
|
Shared::Message& msg = res.back();
|
|
msg.deserialize(ds);
|
|
}
|
|
|
|
--count;
|
|
|
|
} while (count > 0 && mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_PREV) == 0);
|
|
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
return res;
|
|
}
|
|
|
|
bool Core::Archive::isFromTheBeginning()
|
|
{
|
|
if (!opened) {
|
|
throw Closed("isFromTheBeginning", jid.toStdString());
|
|
}
|
|
return fromTheBeginning;
|
|
}
|
|
|
|
void Core::Archive::setFromTheBeginning(bool is)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("setFromTheBeginning", jid.toStdString());
|
|
}
|
|
if (fromTheBeginning != is) {
|
|
fromTheBeginning = is;
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
bool success = setStatValue("beginning", is, txn);
|
|
if (success != 0) {
|
|
mdb_txn_abort(txn);
|
|
} else {
|
|
mdb_txn_commit(txn);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Core::Archive::printOrder()
|
|
{
|
|
qDebug() << "Printing order";
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
MDB_cursor* cursor;
|
|
mdb_cursor_open(txn, order, &cursor);
|
|
MDB_val lmdbKey, lmdbData;
|
|
|
|
mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_FIRST);
|
|
|
|
do {
|
|
std::string sId((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
qDebug() << QString(sId.c_str());
|
|
} while (mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_NEXT) == 0);
|
|
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
}
|
|
|
|
void Core::Archive::printKeys()
|
|
{
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
MDB_cursor* cursor;
|
|
mdb_cursor_open(txn, main, &cursor);
|
|
MDB_val lmdbKey, lmdbData;
|
|
|
|
mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_FIRST);
|
|
|
|
do {
|
|
std::string sId((char*)lmdbKey.mv_data, lmdbKey.mv_size);
|
|
qDebug() << QString(sId.c_str());
|
|
} while (mdb_cursor_get(cursor, &lmdbKey, &lmdbData, MDB_NEXT) == 0);
|
|
|
|
mdb_cursor_close(cursor);
|
|
mdb_txn_abort(txn);
|
|
}
|
|
|
|
bool Core::Archive::getStatBoolValue(const std::string& id, MDB_txn* txn)
|
|
{
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
|
|
int rc;
|
|
rc = mdb_get(txn, stats, &lmdbKey, &lmdbData);
|
|
if (rc == MDB_NOTFOUND) {
|
|
throw NotFound(id, jid.toStdString());
|
|
} else if (rc) {
|
|
std::string err(mdb_strerror(rc));
|
|
qDebug() << "error retrieving" << id.c_str() << "from stats db of" << jid << err.c_str();
|
|
throw Unknown(jid.toStdString(), err);
|
|
} else {
|
|
uint8_t value = *(uint8_t*)(lmdbData.mv_data);
|
|
bool is;
|
|
if (value == 144) {
|
|
is = false;
|
|
} else if (value == 72) {
|
|
is = true;
|
|
} else {
|
|
qDebug() << "error retrieving boolean stat" << id.c_str() << ": stored value doesn't match any magic number, the answer is most probably wrong";
|
|
throw NotFound(id, jid.toStdString());
|
|
}
|
|
return is;
|
|
}
|
|
}
|
|
|
|
std::string Core::Archive::getStatStringValue(const std::string& id, MDB_txn* txn)
|
|
{
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
|
|
int rc;
|
|
rc = mdb_get(txn, stats, &lmdbKey, &lmdbData);
|
|
if (rc == MDB_NOTFOUND) {
|
|
throw NotFound(id, jid.toStdString());
|
|
} else if (rc) {
|
|
std::string err(mdb_strerror(rc));
|
|
qDebug() << "error retrieving" << id.c_str() << "from stats db of" << jid << err.c_str();
|
|
throw Unknown(jid.toStdString(), err);
|
|
} else {
|
|
std::string value((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
return value;
|
|
}
|
|
}
|
|
|
|
bool Core::Archive::setStatValue(const std::string& id, bool value, MDB_txn* txn)
|
|
{
|
|
uint8_t binvalue = 144;
|
|
if (value) {
|
|
binvalue = 72;
|
|
}
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
lmdbData.mv_size = sizeof binvalue;
|
|
lmdbData.mv_data = &binvalue;
|
|
int rc = mdb_put(txn, stats, &lmdbKey, &lmdbData, 0);
|
|
if (rc != 0) {
|
|
qDebug() << "Couldn't store" << id.c_str() << "key into stat database:" << mdb_strerror(rc);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Core::Archive::setStatValue(const std::string& id, const std::string& value, MDB_txn* txn)
|
|
{
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = id.size();
|
|
lmdbKey.mv_data = (char*)id.c_str();
|
|
lmdbData.mv_size = value.size();
|
|
lmdbData.mv_data = (char*)value.c_str();
|
|
int rc = mdb_put(txn, stats, &lmdbKey, &lmdbData, 0);
|
|
if (rc != 0) {
|
|
qDebug() << "Couldn't store" << id.c_str() << "key into stat database:" << mdb_strerror(rc);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Core::Archive::dropAvatar(const std::string& resource)
|
|
{
|
|
MDB_txn *txn;
|
|
MDB_val lmdbKey;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
lmdbKey.mv_size = resource.size();
|
|
lmdbKey.mv_data = (char*)resource.c_str();
|
|
int rc = mdb_del(txn, avatars, &lmdbKey, NULL);
|
|
if (rc != 0) {
|
|
mdb_txn_abort(txn);
|
|
return false;
|
|
} else {
|
|
mdb_txn_commit(txn);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool Core::Archive::setAvatar(const QByteArray& data, bool generated, const QString& resource)
|
|
{
|
|
if (!opened) {
|
|
throw Closed("setAvatar", jid.toStdString());
|
|
}
|
|
|
|
AvatarInfo oldInfo;
|
|
bool hasAvatar = readAvatarInfo(oldInfo, resource);
|
|
std::string res = resource.size() == 0 ? jid.toStdString() : resource.toStdString();
|
|
|
|
if (data.size() == 0) {
|
|
if (!hasAvatar) {
|
|
return false;
|
|
} else {
|
|
return dropAvatar(res);
|
|
}
|
|
} else {
|
|
const char* cep;
|
|
mdb_env_get_path(environment, &cep);
|
|
QString currentPath(cep);
|
|
bool needToRemoveOld = false;
|
|
QCryptographicHash hash(QCryptographicHash::Sha1);
|
|
hash.addData(data);
|
|
QByteArray newHash(hash.result());
|
|
if (hasAvatar) {
|
|
if (!generated && !oldInfo.autogenerated && oldInfo.hash == newHash) {
|
|
return false;
|
|
}
|
|
QFile oldAvatar(currentPath + "/" + res.c_str() + "." + oldInfo.type);
|
|
if (oldAvatar.exists()) {
|
|
if (oldAvatar.rename(currentPath + "/" + res.c_str() + "." + oldInfo.type + ".bak")) {
|
|
needToRemoveOld = true;
|
|
} else {
|
|
qDebug() << "Can't change avatar: couldn't get rid of the old avatar" << oldAvatar.fileName();
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
QMimeDatabase db;
|
|
QMimeType type = db.mimeTypeForData(data);
|
|
QString ext = type.preferredSuffix();
|
|
QFile newAvatar(currentPath + "/" + res.c_str() + "." + ext);
|
|
if (newAvatar.open(QFile::WriteOnly)) {
|
|
newAvatar.write(data);
|
|
newAvatar.close();
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, 0, &txn);
|
|
|
|
MDB_val lmdbKey, lmdbData;
|
|
QByteArray value;
|
|
AvatarInfo newInfo(ext, newHash, generated);
|
|
newInfo.serialize(&value);
|
|
lmdbKey.mv_size = res.size();
|
|
lmdbKey.mv_data = (char*)res.c_str();
|
|
lmdbData.mv_size = value.size();
|
|
lmdbData.mv_data = value.data();
|
|
int rc = mdb_put(txn, avatars, &lmdbKey, &lmdbData, 0);
|
|
|
|
if (rc != 0) {
|
|
qDebug() << "Can't change avatar: couldn't store changes to database for" << newAvatar.fileName() << "rolling back to the previous state";
|
|
if (needToRemoveOld) {
|
|
QFile oldAvatar(currentPath + "/" + res.c_str() + "." + oldInfo.type + ".bak");
|
|
oldAvatar.rename(currentPath + "/" + res.c_str() + "." + oldInfo.type);
|
|
}
|
|
mdb_txn_abort(txn);
|
|
return false;
|
|
} else {
|
|
mdb_txn_commit(txn);
|
|
if (needToRemoveOld) {
|
|
QFile oldAvatar(currentPath + "/" + res.c_str() + "." + oldInfo.type + ".bak");
|
|
oldAvatar.remove();
|
|
}
|
|
return true;
|
|
}
|
|
} else {
|
|
qDebug() << "Can't change avatar: cant open file to write" << newAvatar.fileName() << "rolling back to the previous state";
|
|
if (needToRemoveOld) {
|
|
QFile oldAvatar(currentPath + "/" + res.c_str() + "." + oldInfo.type + ".bak");
|
|
oldAvatar.rename(currentPath + "/" + res.c_str() + "." + oldInfo.type);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool Core::Archive::readAvatarInfo(Core::Archive::AvatarInfo& target, const QString& resource) const
|
|
{
|
|
if (!opened) {
|
|
throw Closed("readAvatarInfo", jid.toStdString());
|
|
}
|
|
std::string res = resource.size() == 0 ? jid.toStdString() : resource.toStdString();
|
|
|
|
MDB_txn *txn;
|
|
mdb_txn_begin(environment, NULL, MDB_RDONLY, &txn);
|
|
|
|
try {
|
|
bool success = readAvatarInfo(target, res, txn);
|
|
mdb_txn_abort(txn);
|
|
return success;
|
|
} catch (...) {
|
|
mdb_txn_abort(txn);
|
|
throw;
|
|
}
|
|
|
|
}
|
|
|
|
bool Core::Archive::readAvatarInfo(Core::Archive::AvatarInfo& target, const std::string& res, MDB_txn* txn) const
|
|
{
|
|
MDB_val lmdbKey, lmdbData;
|
|
lmdbKey.mv_size = res.size();
|
|
lmdbKey.mv_data = (char*)res.c_str();
|
|
|
|
int rc;
|
|
rc = mdb_get(txn, avatars, &lmdbKey, &lmdbData);
|
|
if (rc == MDB_NOTFOUND) {
|
|
return false;
|
|
} else if (rc) {
|
|
std::string err(mdb_strerror(rc));
|
|
qDebug() << "error reading avatar info for" << res.c_str() << "resource of" << jid << err.c_str();
|
|
throw Unknown(jid.toStdString(), err);
|
|
} else {
|
|
target.deserialize((char*)lmdbData.mv_data, lmdbData.mv_size);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
Core::Archive::AvatarInfo Core::Archive::getAvatarInfo(const QString& resource) const
|
|
{
|
|
if (!opened) {
|
|
throw Closed("readAvatarInfo", jid.toStdString());
|
|
}
|
|
|
|
AvatarInfo info;
|
|
bool success = readAvatarInfo(info, resource);
|
|
if (success) {
|
|
return info;
|
|
} else {
|
|
throw NoAvatar(jid.toStdString(), resource.toStdString());
|
|
}
|
|
}
|
|
|
|
Core::Archive::AvatarInfo::AvatarInfo():
|
|
type(),
|
|
hash(),
|
|
autogenerated(false) {}
|
|
|
|
Core::Archive::AvatarInfo::AvatarInfo(const QString& p_type, const QByteArray& p_hash, bool p_autogenerated):
|
|
type(p_type),
|
|
hash(p_hash),
|
|
autogenerated(p_autogenerated) {}
|
|
|
|
void Core::Archive::AvatarInfo::deserialize(char* pointer, uint32_t size)
|
|
{
|
|
QByteArray data = QByteArray::fromRawData(pointer, size);
|
|
QDataStream in(&data, QIODevice::ReadOnly);
|
|
|
|
in >> type >> hash >> autogenerated;
|
|
}
|
|
|
|
void Core::Archive::AvatarInfo::serialize(QByteArray* ba) const
|
|
{
|
|
QDataStream out(ba, QIODevice::WriteOnly);
|
|
|
|
out << type << hash << autogenerated;
|
|
}
|