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#include <QtCore/QDateTime>
#include <QtCore/QEventLoop>
#include <QtCore/QDebug>
#include "xmlrpcinterface.h"
#include "xmlrpcpendingcall.h"
XmlRpcPendingCall::XmlRpcPendingCall(QNetworkReply *reply, XmlRpcInterface *parent)
: QObject(parent), _reply(reply), _state(StateWaitingReply)
{
connect(_reply, SIGNAL(finished()), SLOT(handleRequestFinished()));
_reply->setParent(this);
}
void XmlRpcPendingCall::waitForFinished()
{
if (_state == StateWaitingReply) {
QEventLoop loop;
connect(this, SIGNAL(finished(XmlRpcPendingCall*)), &loop, SLOT(quit()));
loop.exec();
}
}
bool XmlRpcPendingCall::decodeMethodResponse(QXmlStreamReader *r)
{
if (r->readNextStartElement()) {
if (r->name() == "fault") {
_state = StateFaultReceived;
if (r->readNextStartElement()) {
if (r->name() != "value") return false;
_value = decodeValue(r);
if (!_value.isValid()) return false;
}
return true;
} else if (r->name() == "params") {
_state = StateReplyReceived;
if (r->readNextStartElement()) {
if (r->name() != "param") return false;
if (r->readNextStartElement()) {
if (r->name() != "value") return false;
_value = decodeValue(r);
if (!_value.isValid()) return false;
} else {
return false;
}
}
return true;
}
}
return false;
}
QVariant XmlRpcPendingCall::decodeValue(QXmlStreamReader *r)
{
Q_ASSERT(r->isStartElement() && r->name() == "value");
QVariant value;
if (r->readNextStartElement()) {
if (r->name() == "string") {
value = QVariant::fromValue(r->readElementText());
} else if (r->name() == "int") {
bool ok;
value = QVariant::fromValue(r->readElementText().toInt(&ok));
if (!ok) value.clear();
} else if (r->name() == "boolean") {
bool ok;
value = QVariant::fromValue<bool>(r->readElementText().toInt(&ok));
if (!ok) value.clear();
} else if (r->name() == "double") {
bool ok;
value = QVariant::fromValue(r->readElementText().toDouble(&ok));
if (!ok) value.clear();
} else if (r->name() == "dateTime.iso8601") {
QString text = r->readElementText();
value = QVariant::fromValue(decodeISODate(text));
} else if (r->name() == "base64") {
QByteArray data = r->readElementText().toAscii();
value = QVariant::fromValue(QByteArray::fromBase64(data));
} else if (r->name() == "array") {
QList<QVariant> list;
if (!r->readNextStartElement() || r->name() != "data") {
qWarning() << "Unexpected element inside <array>:" << r->name();
return QVariant();
}
while (r->readNextStartElement()) {
if (r->name() != "value") return QVariant();
QVariant value = decodeValue(r);
if (!value.isValid()) return QVariant();
list.append(value);
}
if (r->readNextStartElement()) {
// No other elements
qWarning() << "Unexpected element inside <array>:" << r->name();
return QVariant();
}
value = QVariant::fromValue(list);
} else if (r->name() == "struct") {
QMap<QString, QVariant> map;
while (r->readNextStartElement()) {
if (r->name() != "member") return QVariant();
QString name;
if (r->readNextStartElement() && r->name() == "name") {
name = r->readElementText();
} else {
qWarning() << "Malformed struct";
return QVariant();
}
if (r->readNextStartElement() && r->name() == "value") {
QVariant value = decodeValue(r);
if (!value.isValid()) return QVariant();
map.insert(name, value);
} else {
qWarning() << "Malformed struct";
return QVariant();
}
if (r->readNextStartElement()) {
// No other elements
qWarning() << "Unexpected element inside <member>" << r->name();
return false;
}
}
value = QVariant::fromValue(map);
} else {
qWarning() << "Unknown value type:" << r->name();
}
}
if (r->readNextStartElement()) {
// There is more than one element inside this <value>
qWarning() << "More than element inside <value>";
return QVariant();
} else if (r->isEndElement() && r->name() == "value") {
// Everything OK
return value;
} else {
qWarning() << "Expected </value> instead of" << r->name();
return QVariant();
}
}
QDateTime XmlRpcPendingCall::decodeISODate(QString text)
{
if (text.length() < 8) {
// Too short!
return QDateTime();
}
if (text[4].isNumber() && text[7].isNumber()) {
// Qt seems not be happy without dashes (YYYYMMDD vs YYYY-MM-DD)
text.insert(4, '-');
text.insert(7, '-');
}
// Qt will consider UTC offset "+00:00" invalid, so we replace it by "Z".
if (text.endsWith("+00:00") || text.endsWith("-00:00")) {
const int len = 6; // "+00:00"
const int pos = text.length() - len;
text.replace(pos, len, "Z");
} else if (text.endsWith("+0000") || text.endsWith("-0000")) {
const int len = 5; // "+0000"
const int pos = text.length() - len;
text.replace(pos, len, "Z");
} else if (text.endsWith("+00") || text.endsWith("-00")) {
const int len = 3; // "+00"
const int pos = text.length() - len;
text.replace(pos, len, "Z");
}
QDateTime dt = QDateTime::fromString(text, Qt::ISODate);
return dt;
}
void XmlRpcPendingCall::handleRequestFinished()
{
Q_ASSERT(_state == StateWaitingReply);
QNetworkReply::NetworkError error = _reply->error();
if (error == QNetworkReply::NoError) {
QByteArray data = _reply->readAll();
#if XML_RPC_DEBUG
qDebug() << "Response:" << data;
#endif
QXmlStreamReader reader(data);
bool parse_ok = false;
if (reader.readNextStartElement()) {
if (reader.name() == "methodResponse") {
parse_ok = decodeMethodResponse(&reader);
}
}
if (parse_ok) {
Q_ASSERT(_state == StateReplyReceived || _state == StateFaultReceived);
} else {
qWarning() << "Parse error!";
QVariantMap obj;
obj.insert("code", QVariant(reader.error()));
obj.insert("message", QVariant(reader.errorString()));
_value = obj;
_state = StateParseError;
}
} else {
qWarning() << "Network error!" << error;
QVariantMap obj;
obj.insert("code", QVariant(error));
obj.insert("message", QVariant(_reply->errorString()));
_value = obj;
_state = StateNetworkError;
}
emit finished(this);
}
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