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googlecalendarsyncadaptor.cpp
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googlecalendarsyncadaptor.cpp
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/****************************************************************************
**
** Copyright (C) 2013 - 2019 Jolla Ltd.
** Copyright (C) 2020 Open Mobile Platform LLC.
**
** This program/library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public License
** version 2.1 as published by the Free Software Foundation.
**
** This program/library 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
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this program/library; if not, write to the Free
** Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
** 02110-1301 USA
**
****************************************************************************/
#include "googlecalendarsyncadaptor.h"
#include "googlecalendarincidencecomparator.h"
#include "trace.h"
#include <QtCore/QUrlQuery>
#include <QtCore/QFile>
#include <QtCore/QDir>
#include <QtCore/QByteArray>
#include <QtCore/QJsonArray>
#include <QtCore/QJsonObject>
#include <QtCore/QJsonDocument>
#include <QtCore/QSettings>
#include <QtCore/QSet>
#include <QtSql/QSqlQuery>
#include <QtSql/QSqlError>
#include <Accounts/Account>
#include <Accounts/Manager>
#include <Accounts/Service>
//----------------------------------------------
#define QDATEONLY_FORMAT "yyyy-MM-dd"
#define RFC5545_FORMAT "yyyyMMddThhmmssZ"
#define RFC5545_FORMAT_NTZC "yyyyMMddThhmmss"
#define RFC5545_QDATE_FORMAT "yyyyMMdd"
namespace {
const int GOOGLE_CAL_SYNC_PLUGIN_VERSION = 3;
const QByteArray NOTEBOOK_SERVER_SYNC_TOKEN_PROPERTY = QByteArrayLiteral("syncToken");
const QByteArray NOTEBOOK_SERVER_ID_PROPERTY = QByteArrayLiteral("calendarServerId");
const QByteArray NOTEBOOK_EMAIL_PROPERTY = QByteArrayLiteral("userPrincipalEmail");
const QByteArray SERVER_COLOR_PROPERTY = QByteArrayLiteral("serverColor");
const int COLLISION_ERROR_MAX_CONSECUTIVE = 8;
const QByteArray VOLATILE_APP = QByteArrayLiteral("VOLATILE");
const QByteArray VOLATILE_NAME = QByteArrayLiteral("SYNC-FAILURE");
const QString ERROR_REASON_NON_ORGANIZER = QStringLiteral("forbiddenForNonOrganizer");
const QString ERROR_REASON_UPDATE_MIN_TOO_OLD = QStringLiteral("updatedMinTooLongAgo");
void errorDumpStr(const QString &str)
{
// Dump the entire string to the log.
// Note that the log cannot handle newlines,
// so we separate the string into chunks.
Q_FOREACH (const QString &chunk, str.split('\n', QString::SkipEmptyParts)) {
qCWarning(lcSocialPlugin) << chunk;
}
}
void traceDumpStr(const QString &str)
{
if (!lcSocialPluginTrace().isDebugEnabled()) {
return;
}
// Dump the entire string to the log.
// Note that the log cannot handle newlines,
// so we separate the string into chunks.
Q_FOREACH (const QString &chunk, str.split('\n', QString::SkipEmptyParts)) {
qCDebug(lcSocialPluginTrace) << chunk;
}
}
// returns true if the ghost-event cleanup sync has been performed.
bool ghostEventCleanupPerformed()
{
QString settingsFileName = QString::fromLatin1("%1/%2/gcal.ini")
.arg(PRIVILEGED_DATA_DIR)
.arg(QString::fromLatin1(SYNC_DATABASE_DIR));
QSettings settingsFile(settingsFileName, QSettings::IniFormat);
return settingsFile.value(QString::fromLatin1("cleaned"), QVariant::fromValue<bool>(false)).toBool();
}
void setGhostEventCleanupPerformed()
{
QString settingsFileName = QString::fromLatin1("%1/%2/gcal.ini")
.arg(PRIVILEGED_DATA_DIR)
.arg(QString::fromLatin1(SYNC_DATABASE_DIR));
QSettings settingsFile(settingsFileName, QSettings::IniFormat);
settingsFile.setValue(QString::fromLatin1("cleaned"), QVariant::fromValue<bool>(true));
settingsFile.sync();
}
void uniteIncidenceLists(const KCalendarCore::Incidence::List &first, KCalendarCore::Incidence::List *second)
{
int originalSecondSize = second->size();
bool foundMatch = false;
Q_FOREACH (KCalendarCore::Incidence::Ptr inc, first) {
foundMatch = false;
for (int i = 0; i < originalSecondSize; ++i) {
if (inc->uid() == second->at(i)->uid() && inc->recurrenceId() == second->at(i)->recurrenceId()) {
// found a match
foundMatch = true;
break;
}
}
if (!foundMatch) {
second->append(inc);
}
}
}
QString gCalEventId(KCalendarCore::Incidence::Ptr event)
{
// we abuse the comments field to store our gcal-id.
// we should use a custom property, but those are deleted on incidence deletion.
const QStringList &comments(event->comments());
Q_FOREACH (const QString &comment, comments) {
if (comment.startsWith("jolla-sociald:gcal-id:")) {
return comment.mid(22);
}
}
return QString();
}
void setGCalEventId(KCalendarCore::Incidence::Ptr event, const QString &id)
{
// we abuse the comments field to store our gcal-id.
// we should use a custom property, but those are deleted on incidence deletion.
const QStringList &comments(event->comments());
Q_FOREACH (const QString &comment, comments) {
if (comment.startsWith("jolla-sociald:gcal-id:")) {
// remove any existing gcal-id comment.
if (!event->removeComment(comment)) {
qCDebug(lcSocialPlugin) << "Unable to remove comment:" << comment;
}
break;
}
}
event->addComment(QStringLiteral("jolla-sociald:gcal-id:%1").arg(id));
}
void setRemoteUidCustomField(KCalendarCore::Incidence::Ptr event, const QString &uid, const QString &id)
{
// store it also in a custom property purely for invitation lookup purposes.
if (!uid.isEmpty()) {
event->setNonKDECustomProperty("X-SAILFISHOS-REMOTE-UID", uid.toUtf8());
} else {
// Google Calendar invites are sent as invitations with uid suffixed with @google.com.
if (id.endsWith(QLatin1String("@google.com"), Qt::CaseInsensitive)) {
event->setNonKDECustomProperty("X-SAILFISHOS-REMOTE-UID", id.toUtf8());
} else {
QString suffixedId = id;
suffixedId.append(QLatin1String("@google.com"));
event->setNonKDECustomProperty("X-SAILFISHOS-REMOTE-UID", suffixedId.toUtf8());
}
}
}
QString gCalETag(KCalendarCore::Incidence::Ptr event)
{
return event->customProperty("jolla-sociald", "gcal-etag");
}
void setGCalETag(KCalendarCore::Incidence::Ptr event, const QString &etag)
{
// note: custom properties are purged on incidence deletion.
event->setCustomProperty("jolla-sociald", "gcal-etag", etag);
}
QList<QDateTime> datetimesFromExRDateStr(const QString &exrdatestr, bool *isDateOnly)
{
// possible forms:
// RDATE:19970714T123000Z
// RDATE;VALUE=DATE-TIME:19970714T123000Z
// RDATE;VALUE=DATE-TIME:19970714T123000Z,19970715T123000Z
// RDATE;TZID=America/New_York:19970714T083000
// RDATE;VALUE=PERIOD:19960403T020000Z/19960403T040000Z,19960404T010000Z/PT3H
// RDATE;VALUE=DATE:19970101,19970120
QList<QDateTime> retn;
QString str = exrdatestr;
*isDateOnly = false; // by default.
if (str.startsWith(QStringLiteral("exdate"), Qt::CaseInsensitive)) {
str.remove(0, 6);
} else if (str.startsWith(QStringLiteral("rdate"), Qt::CaseInsensitive)) {
str.remove(0, 5);
} else {
qCWarning(lcSocialPlugin) << "not an ex/rdate string:" << exrdatestr;
return retn;
}
if (str.startsWith(';')) {
str.remove(0,1);
if (str.startsWith("VALUE=DATE-TIME:", Qt::CaseInsensitive)) {
str.remove(0, 16);
QStringList dts = str.split(',');
Q_FOREACH (const QString &dtstr, dts) {
if (dtstr.endsWith('Z')) {
// UTC
QDateTime dt = QDateTime::fromString(dtstr, RFC5545_FORMAT);
dt.setTimeSpec(Qt::UTC);
retn.append(dt);
} else {
// Floating time
QDateTime dt = QDateTime::fromString(dtstr, RFC5545_FORMAT_NTZC);
dt.setTimeSpec(Qt::LocalTime);
retn.append(dt);
}
}
} else if (str.startsWith("VALUE=DATE:", Qt::CaseInsensitive)) {
str.remove(0, 11);
QStringList dts = str.split(',');
Q_FOREACH(const QString &dstr, dts) {
QDate date = QLocale::c().toDate(dstr, RFC5545_QDATE_FORMAT);
retn.append(QDateTime(date));
}
} else if (str.startsWith("VALUE=PERIOD:", Qt::CaseInsensitive)) {
qCWarning(lcSocialPlugin) << "unsupported parameter in ex/rdate string:" << exrdatestr;
// TODO: support PERIOD formats, or just switch to CalDAV for Google sync...
} else if (str.startsWith("TZID=") && str.contains(':')) {
str.remove(0, 5);
QString tzidstr = str.mid(0, str.indexOf(':')); // something like: "Australia/Brisbane"
QTimeZone tz(tzidstr.toUtf8());
str.remove(0, tzidstr.size()+1);
QStringList dts = str.split(',');
Q_FOREACH (const QString &dtstr, dts) {
QDateTime dt = QDateTime::fromString(dtstr, RFC5545_FORMAT_NTZC);
if (!dt.isValid()) {
// try parsing from alternate formats
dt = QDateTime::fromString(dtstr, Qt::ISODate);
}
if (!dt.isValid()) {
qCWarning(lcSocialPlugin) << "unable to parse datetime from ex/rdate string:" << exrdatestr;
} else {
if (tz.isValid()) {
dt.setTimeZone(tz);
} else {
dt.setTimeSpec(Qt::LocalTime);
qCInfo(lcSocialPlugin) << "WARNING: unknown tzid:" << tzidstr << "; assuming clock-time instead!";
}
retn.append(dt);
}
}
} else {
qCWarning(lcSocialPlugin) << "invalid parameter in ex/rdate string:" << exrdatestr;
}
} else if (str.startsWith(':')) {
str.remove(0,1);
QStringList dts = str.split(',');
Q_FOREACH (const QString &dtstr, dts) {
if (dtstr.endsWith('Z')) {
// UTC
QDateTime dt = QDateTime::fromString(dtstr, RFC5545_FORMAT);
if (!dt.isValid()) {
// try parsing from alternate formats
dt = QDateTime::fromString(dtstr, Qt::ISODate);
}
if (!dt.isValid()) {
qCWarning(lcSocialPlugin) << "unable to parse datetime from ex/rdate string:" << exrdatestr;
} else {
// parsed successfully
dt.setTimeSpec(Qt::UTC);
retn.append(dt);
}
} else {
// Floating time
QDateTime dt = QDateTime::fromString(dtstr, RFC5545_FORMAT_NTZC);
if (!dt.isValid()) {
// try parsing from alternate formats
dt = QDateTime::fromString(dtstr, Qt::ISODate);
}
if (!dt.isValid()) {
qCWarning(lcSocialPlugin) << "unable to parse datetime from ex/rdate string:" << exrdatestr;
} else {
// parsed successfully
dt.setTimeSpec(Qt::LocalTime);
retn.append(dt);
}
}
}
} else {
qCWarning(lcSocialPlugin) << "not a valid ex/rdate string:" << exrdatestr;
}
return retn;
}
QJsonArray recurrenceArray(KCalendarCore::Event::Ptr event, KCalendarCore::ICalFormat &icalFormat, const QList<QDateTime> &exceptions)
{
QJsonArray retn;
// RRULE
KCalendarCore::Recurrence *kcalRecurrence = event->recurrence();
Q_FOREACH (KCalendarCore::RecurrenceRule *rrule, kcalRecurrence->rRules()) {
QString rruleStr = icalFormat.toString(rrule);
rruleStr.replace("\r\n", "");
retn.append(QJsonValue(rruleStr));
}
// EXRULE
Q_FOREACH (KCalendarCore::RecurrenceRule *exrule, kcalRecurrence->exRules()) {
QString exruleStr = icalFormat.toString(exrule);
exruleStr.replace("RRULE", "EXRULE");
exruleStr.replace("\r\n", "");
retn.append(QJsonValue(exruleStr));
}
// RDATE (date)
QString rdates;
Q_FOREACH (const QDate &rdate, kcalRecurrence->rDates()) {
rdates.append(QLocale::c().toString(rdate, RFC5545_QDATE_FORMAT));
rdates.append(',');
}
if (rdates.size()) {
rdates.chop(1); // trailing comma
retn.append(QJsonValue(QString::fromLatin1("RDATE;VALUE=DATE:%1").arg(rdates)));
}
// RDATE (date-time)
QString rdatetimes;
Q_FOREACH (const QDateTime &rdatetime, kcalRecurrence->rDateTimes()) {
if (rdatetime.timeSpec() == Qt::LocalTime) {
rdatetimes.append(rdatetime.toString(RFC5545_FORMAT_NTZC));
} else {
rdatetimes.append(rdatetime.toUTC().toString(RFC5545_FORMAT));
}
rdatetimes.append(',');
}
if (rdatetimes.size()) {
rdatetimes.chop(1); // trailing comma
retn.append(QJsonValue(QString::fromLatin1("RDATE;VALUE=DATE-TIME:%1").arg(rdatetimes)));
}
// EXDATE (date)
QString exdates;
Q_FOREACH (const QDate &exdate, kcalRecurrence->exDates()) {
// mkcal adds an EXDATE for each exception event, whereas Google does not
// So we only include the EXDATE if there's no exception associated with it
if (!exceptions.contains(QDateTime(exdate))) {
exdates.append(QLocale::c().toString(exdate, RFC5545_QDATE_FORMAT));
exdates.append(',');
}
}
if (exdates.size()) {
exdates.chop(1); // trailing comma
retn.append(QJsonValue(QString::fromLatin1("EXDATE;VALUE=DATE:%1").arg(exdates)));
}
// EXDATE (date-time)
QString exdatetimes;
Q_FOREACH (const QDateTime &exdatetime, kcalRecurrence->exDateTimes()) {
// mkcal adds an EXDATE for each exception event, whereas Google does not
// So we only include the EXDATE if there's no exception associated with it
if (!exceptions.contains(exdatetime)) {
if (exdatetime.timeSpec() == Qt::LocalTime) {
exdatetimes.append(exdatetime.toString(RFC5545_FORMAT_NTZC));
} else {
exdatetimes.append(exdatetime.toUTC().toString(RFC5545_FORMAT));
}
exdatetimes.append(',');
}
}
if (exdatetimes.size()) {
exdatetimes.chop(1); // trailing comma
retn.append(QJsonValue(QString::fromLatin1("EXDATE;VALUE=DATE-TIME:%1").arg(exdatetimes)));
}
return retn;
}
QDateTime parseRecurrenceId(const QJsonObject &originalStartTime)
{
QString recurrenceIdStr;
QString recurrenceIdTzStr;
if (originalStartTime.contains(QLatin1String("date"))) {
recurrenceIdStr = originalStartTime.value(QLatin1String("date")).toVariant().toString();
} else {
recurrenceIdStr = originalStartTime.value(QLatin1String("dateTime")).toVariant().toString();
recurrenceIdTzStr = originalStartTime.value(QLatin1String("timeZone")).toVariant().toString();
}
QDateTime recurrenceId = QDateTime::fromString(recurrenceIdStr, Qt::ISODate);
if (!recurrenceIdTzStr.isEmpty()) {
recurrenceId = recurrenceId.toTimeZone(QTimeZone(recurrenceIdTzStr.toLatin1()));
}
return recurrenceId;
}
QDateTime parseDateTimeString(const QString &dateTimeStr)
{
QDateTime parsedTime = QDateTime::fromString(dateTimeStr, Qt::ISODate);
if (parsedTime.isNull()) {
qWarning() << "Unable to parse date time from string:" << dateTimeStr;
return QDateTime();
}
return parsedTime.toTimeZone(QTimeZone::systemTimeZone());
}
void extractCreatedAndUpdated(const QJsonObject &eventData,
QDateTime *created,
QDateTime *updated)
{
const QString createdStr = eventData.value(QLatin1String("created")).toVariant().toString();
const QString updatedStr = eventData.value(QLatin1String("updated")).toVariant().toString();
if (!createdStr.isEmpty()) {
*created = parseDateTimeString(createdStr);
}
if (!updatedStr.isEmpty()) {
*updated = parseDateTimeString(updatedStr);
}
}
void extractStartAndEnd(const QJsonObject &eventData,
bool *startExists,
bool *endExists,
bool *startIsDateOnly,
bool *endIsDateOnly,
bool *isAllDay,
QDateTime *start,
QDateTime *end)
{
*startIsDateOnly = false, *endIsDateOnly = false;
QString startTimeString, endTimeString;
QJsonObject startTimeData = eventData.value(QLatin1String("start")).toObject();
QJsonObject endTimeData = eventData.value(QLatin1String("end")).toObject();
if (!startTimeData.value(QLatin1String("date")).toVariant().toString().isEmpty()) {
*startExists = true;
*startIsDateOnly = true; // all-day event.
startTimeString = startTimeData.value(QLatin1String("date")).toVariant().toString();
} else if (!startTimeData.value(QLatin1String("dateTime")).toVariant().toString().isEmpty()) {
*startExists = true;
startTimeString = startTimeData.value(QLatin1String("dateTime")).toVariant().toString();
} else {
*startExists = false;
}
if (!endTimeData.value(QLatin1String("date")).toVariant().toString().isEmpty()) {
*endExists = true;
*endIsDateOnly = true; // all-day event.
endTimeString = endTimeData.value(QLatin1String("date")).toVariant().toString();
} else if (!endTimeData.value(QLatin1String("dateTime")).toVariant().toString().isEmpty()) {
*endExists = true;
endTimeString = endTimeData.value(QLatin1String("dateTime")).toVariant().toString();
} else {
*endExists = false;
}
if (*startExists) {
if (!*startIsDateOnly) {
*start = parseDateTimeString(startTimeString);
} else {
*start = QDateTime(QLocale::c().toDate(startTimeString, QDATEONLY_FORMAT));
}
}
if (*endExists) {
if (!*endIsDateOnly) {
*end = parseDateTimeString(endTimeString);
} else {
// Special handling for all-day events is required.
if (*startExists && *startIsDateOnly) {
if (QLocale::c().toDate(startTimeString, QDATEONLY_FORMAT)
== QLocale::c().toDate(endTimeString, QDATEONLY_FORMAT)) {
// single-day all-day event
*endExists = false;
*isAllDay = true;
} else if (QLocale::c().toDate(startTimeString, QDATEONLY_FORMAT)
== QLocale::c().toDate(endTimeString, QDATEONLY_FORMAT).addDays(-1)) {
// Google will send a single-day all-day event has having an end-date
// of startDate+1 to conform to iCal spec. Hence, this is actually
// a single-day all-day event, despite the difference in end-date.
*endExists = false;
*isAllDay = true;
} else {
// multi-day all-day event.
// as noted above, Google will send all-day events as having an end-date
// of real-end-date+1 in order to conform to iCal spec (exclusive end dt).
*end = QDateTime(QLocale::c().toDate(endTimeString, QDATEONLY_FORMAT).addDays(-1));
*isAllDay = true;
}
} else {
*end = QDateTime(QLocale::c().toDate(endTimeString, QDATEONLY_FORMAT));
*isAllDay = false;
}
}
}
}
void extractRecurrence(const QJsonArray &recurrence, KCalendarCore::Event::Ptr event, KCalendarCore::ICalFormat &icalFormat)
{
KCalendarCore::Recurrence *kcalRecurrence = event->recurrence();
kcalRecurrence->clear(); // avoid adding duplicate recurrence information
for (int i = 0; i < recurrence.size(); ++i) {
QString ruleStr = recurrence.at(i).toString();
if (ruleStr.startsWith(QString::fromLatin1("rrule"), Qt::CaseInsensitive)) {
KCalendarCore::RecurrenceRule *rrule = new KCalendarCore::RecurrenceRule;
if (!icalFormat.fromString(rrule, ruleStr.mid(6))) {
qCDebug(lcSocialPlugin) << "unable to parse RRULE information:" << ruleStr;
traceDumpStr(QString::fromUtf8(QJsonDocument(recurrence).toJson()));
} else {
// Set the recurrence start to be the event start
rrule->setStartDt(event->dtStart());
kcalRecurrence->addRRule(rrule);
}
} else if (ruleStr.startsWith(QString::fromLatin1("exrule"), Qt::CaseInsensitive)) {
KCalendarCore::RecurrenceRule *exrule = new KCalendarCore::RecurrenceRule;
if (!icalFormat.fromString(exrule, ruleStr.mid(7))) {
qCDebug(lcSocialPlugin) << "unable to parse EXRULE information:" << ruleStr;
traceDumpStr(QString::fromUtf8(QJsonDocument(recurrence).toJson()));
} else {
kcalRecurrence->addExRule(exrule);
}
} else if (ruleStr.startsWith(QString::fromLatin1("rdate"), Qt::CaseInsensitive)) {
bool isDateOnly = false;
QList<QDateTime> rdatetimes = datetimesFromExRDateStr(ruleStr, &isDateOnly);
if (!rdatetimes.size()) {
qCDebug(lcSocialPlugin) << "unable to parse RDATE information:" << ruleStr;
traceDumpStr(QString::fromUtf8(QJsonDocument(recurrence).toJson()));
} else {
Q_FOREACH (const QDateTime &dt, rdatetimes) {
if (isDateOnly) {
kcalRecurrence->addRDate(dt.date());
} else {
kcalRecurrence->addRDateTime(dt);
}
}
}
} else if (ruleStr.startsWith(QString::fromLatin1("exdate"), Qt::CaseInsensitive)) {
bool isDateOnly = false;
QList<QDateTime> exdatetimes = datetimesFromExRDateStr(ruleStr, &isDateOnly);
if (!exdatetimes.size()) {
qCDebug(lcSocialPlugin) << "unable to parse EXDATE information:" << ruleStr;
traceDumpStr(QString::fromUtf8(QJsonDocument(recurrence).toJson()));
} else {
Q_FOREACH (const QDateTime &dt, exdatetimes) {
if (isDateOnly) {
kcalRecurrence->addExDate(dt.date());
} else {
kcalRecurrence->addExDateTime(dt);
}
}
}
} else {
qCDebug(lcSocialPlugin) << "unknown recurrence information:" << ruleStr;
traceDumpStr(QString::fromUtf8(QJsonDocument(recurrence).toJson()));
}
}
}
void extractOrganizer(const QJsonObject &creatorObj, const QJsonObject &organizerObj, KCalendarCore::Event::Ptr event)
{
if (!organizerObj.value(QLatin1String("displayName")).toVariant().toString().isEmpty()
|| !organizerObj.value(QLatin1String("email")).toVariant().toString().isEmpty()) {
KCalendarCore::Person organizer(
organizerObj.value(QLatin1String("displayName")).toVariant().toString(),
organizerObj.value(QLatin1String("email")).toVariant().toString());
event->setOrganizer(organizer);
} else if (!creatorObj.value(QLatin1String("displayName")).toVariant().toString().isEmpty()
|| !creatorObj.value(QLatin1String("email")).toVariant().toString().isEmpty()) {
KCalendarCore::Person organizer(
creatorObj.value(QLatin1String("displayName")).toVariant().toString(),
creatorObj.value(QLatin1String("email")).toVariant().toString());
event->setOrganizer(organizer);
}
}
void extractAttendees(const QJsonArray &attendees, KCalendarCore::Event::Ptr event)
{
event->clearAttendees();
for (int i = 0; i < attendees.size(); ++i) {
QJsonObject attendeeObj = attendees.at(i).toObject();
KCalendarCore::Attendee attendee(
attendeeObj.value(QLatin1String("displayName")).toVariant().toString(),
attendeeObj.value(QLatin1String("email")).toVariant().toString());
if (attendeeObj.find(QLatin1String("optional")) != attendeeObj.end()) {
if (attendeeObj.value(QLatin1String("optional")).toVariant().toBool()) {
attendee.setRole(KCalendarCore::Attendee::OptParticipant);
} else {
attendee.setRole(KCalendarCore::Attendee::ReqParticipant);
}
}
if (attendeeObj.find(QLatin1String("responseStatus")) != attendeeObj.end()) {
const QString &responseValue = attendeeObj.value(QLatin1String("responseStatus")).toVariant().toString();
if (responseValue == "needsAction") {
attendee.setStatus(KCalendarCore::Attendee::NeedsAction);
} else if (responseValue == "accepted") {
attendee.setStatus(KCalendarCore::Attendee::Accepted);
} else if (responseValue == "declined") {
attendee.setStatus(KCalendarCore::Attendee::Declined);
} else {
attendee.setStatus(KCalendarCore::Attendee::Tentative);
}
}
attendee.setRSVP(true);
event->addAttendee(attendee);
}
}
#define START_EVENT_UPDATES_IF_REQUIRED(event, changed) \
if (*changed == false) { \
event->startUpdates(); \
} \
*changed = true;
#define UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, getter, setter, newValue, changed) \
if (event->getter() != newValue) { \
START_EVENT_UPDATES_IF_REQUIRED(event, changed) \
event->setter(newValue); \
}
#define END_EVENT_UPDATES_IF_REQUIRED(event, changed, startedUpdates) \
if (*changed == false) { \
qCDebug(lcSocialPlugin) << "Ignoring spurious change reported for:" << \
event->uid() << event->revision() << event->summary(); \
} else if (startedUpdates) { \
event->endUpdates(); \
}
void extractAlarms(const QJsonObject &json, KCalendarCore::Event::Ptr event, int defaultReminderStartOffset, bool *changed)
{
QSet<int> startOffsets;
if (json.contains(QStringLiteral("reminders"))) {
QJsonObject reminders = json.value(QStringLiteral("reminders")).toObject();
if (reminders.value(QStringLiteral("useDefault")).toBool()) {
if (defaultReminderStartOffset > 0) {
startOffsets.insert(defaultReminderStartOffset);
} else {
qCDebug(lcSocialPlugin) << "not adding default reminder even though requested: not popup or invalid start offset.";
}
} else {
QJsonArray overrides = reminders.value(QStringLiteral("overrides")).toArray();
for (int i = 0; i < overrides.size(); ++i) {
QJsonObject override = overrides.at(i).toObject();
if (override.value(QStringLiteral("method")).toString() == QStringLiteral("popup")) {
startOffsets.insert(override.value(QStringLiteral("minutes")).toInt());
}
}
}
// search for all reminders to see if they are represented by an alarm.
bool needRemoveAndRecreate = false;
for (QSet<int>::const_iterator it = startOffsets.constBegin(); it != startOffsets.constEnd(); it++) {
const int startOffset = (*it) * -60; // convert minutes to seconds (before event)
qCDebug(lcSocialPlugin) << "event needs reminder with start offset (seconds):" << startOffset;
KCalendarCore::Alarm::List alarms = event->alarms();
int alarmsCount = 0;
for (int i = 0; i < alarms.count(); ++i) {
// we don't count Procedure type alarms.
if (alarms.at(i)->type() != KCalendarCore::Alarm::Procedure) {
alarmsCount += 1;
if (alarms.at(i)->startOffset().asSeconds() == startOffset) {
qCDebug(lcSocialPlugin) << "event already has reminder with start offset (seconds):" << startOffset;
} else {
qCDebug(lcSocialPlugin) << "event is missing reminder with start offset (seconds):" << startOffset;
needRemoveAndRecreate = true;
}
}
}
if (alarmsCount != startOffsets.count()) {
qCDebug(lcSocialPlugin) << "event has too many reminders, recreating alarms.";
needRemoveAndRecreate = true;
}
}
if (needRemoveAndRecreate) {
START_EVENT_UPDATES_IF_REQUIRED(event, changed);
KCalendarCore::Alarm::List alarms = event->alarms();
for (int i = 0; i < alarms.count(); ++i) {
if (alarms.at(i)->type() != KCalendarCore::Alarm::Procedure) {
event->removeAlarm(alarms.at(i));
}
}
for (QSet<int>::const_iterator it = startOffsets.constBegin(); it != startOffsets.constEnd(); it++) {
const int startOffset = (*it) * -60; // convert minutes to seconds (before event)
qCDebug(lcSocialPlugin) << "setting event reminder with start offset (seconds):" << startOffset;
KCalendarCore::Alarm::Ptr alarm = event->newAlarm();
alarm->setEnabled(true);
alarm->setStartOffset(KCalendarCore::Duration(startOffset));
}
}
}
if (startOffsets.isEmpty()) {
// no reminders were defined in the json received from Google.
// remove any alarms as required from the local event.
KCalendarCore::Alarm::List alarms = event->alarms();
for (int i = 0; i < alarms.count(); ++i) {
if (alarms.at(i)->type() != KCalendarCore::Alarm::Procedure) {
qCDebug(lcSocialPlugin) << "removing event reminder with start offset (seconds):" << alarms.at(i)->startOffset().asSeconds();
START_EVENT_UPDATES_IF_REQUIRED(event, changed);
event->removeAlarm(alarms.at(i));
}
}
}
}
void jsonToKCal(const QJsonObject &json, KCalendarCore::Event::Ptr event, int defaultReminderStartOffset, KCalendarCore::ICalFormat &icalFormat, bool *changed)
{
Q_ASSERT(!event.isNull());
bool alreadyStarted = *changed; // if this is true, we don't need to call startUpdates/endUpdates() in this function.
const QString eventGCalETag(gCalETag(event));
const QString jsonGCalETag(json.value(QLatin1String("etag")).toVariant().toString());
if (!alreadyStarted && eventGCalETag == jsonGCalETag) {
qCDebug(lcSocialPlugin) << "Ignoring non-remote-changed:" << event->uid() << ","
<< eventGCalETag << "==" << jsonGCalETag;
return; // this event has not changed server-side since we last saw it.
}
QDateTime createdTimestamp, updatedTimestamp, start, end;
bool startExists = false, endExists = false;
bool startIsDateOnly = false, endIsDateOnly = false;
bool isAllDay = false;
extractCreatedAndUpdated(json, &createdTimestamp, &updatedTimestamp);
extractStartAndEnd(json, &startExists, &endExists, &startIsDateOnly, &endIsDateOnly, &isAllDay, &start, &end);
if (gCalEventId(event) != json.value(QLatin1String("id")).toVariant().toString()) {
START_EVENT_UPDATES_IF_REQUIRED(event, changed);
setGCalEventId(event, json.value(QLatin1String("id")).toVariant().toString());
}
if (eventGCalETag != jsonGCalETag) {
START_EVENT_UPDATES_IF_REQUIRED(event, changed);
setGCalETag(event, jsonGCalETag);
}
setRemoteUidCustomField(event, json.value(QLatin1String("iCalUID")).toVariant().toString(), json.value(QLatin1String("id")).toVariant().toString());
extractOrganizer(json.value(QLatin1String("creator")).toObject(), json.value(QLatin1String("organizer")).toObject(), event);
extractAttendees(json.value(QLatin1String("attendees")).toArray(), event);
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, isReadOnly, setReadOnly, json.value(QLatin1String("locked")).toVariant().toBool(), changed)
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, summary, setSummary, json.value(QLatin1String("summary")).toVariant().toString(), changed)
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, description, setDescription, json.value(QLatin1String("description")).toVariant().toString(), changed)
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, location, setLocation, json.value(QLatin1String("location")).toVariant().toString(), changed)
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, revision, setRevision, json.value(QLatin1String("sequence")).toVariant().toInt(), changed)
if (createdTimestamp.isValid()) {
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, created, setCreated, createdTimestamp, changed)
}
if (updatedTimestamp.isValid()) {
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, lastModified, setLastModified, updatedTimestamp, changed)
}
if (startExists) {
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, dtStart, setDtStart, start, changed)
}
if (endExists) {
if (!event->hasEndDate() || event->dtEnd() != end) {
START_EVENT_UPDATES_IF_REQUIRED(event, changed);
event->setDtEnd(end);
}
}
// Recurrence rules use the event start time, so must be set after it
extractRecurrence(json.value(QLatin1String("recurrence")).toArray(), event, icalFormat);
if (isAllDay) {
UPDATE_EVENT_PROPERTY_IF_REQUIRED(event, allDay, setAllDay, true, changed)
}
extractAlarms(json, event, defaultReminderStartOffset, changed);
END_EVENT_UPDATES_IF_REQUIRED(event, changed, !alreadyStarted);
}
bool remoteModificationIsReal(const QJsonObject &json, KCalendarCore::Event::Ptr event)
{
if (gCalEventId(event) != json.value(QLatin1String("id")).toVariant().toString()) {
return true; // this event is either a partial-upsync-artifact or a new remote addition.
}
if (gCalETag(event) != json.value(QLatin1String("etag")).toVariant().toString()) {
return true; // this event has changed server-side since we last saw it.
}
return false; // this event has not changed server-side since we last saw it.
}
bool localModificationIsReal(const QJsonObject &local, const QJsonObject &remote, int defaultReminderStartOffset, KCalendarCore::ICalFormat &icalFormat)
{
bool changed = true;
KCalendarCore::Event::Ptr localEvent = KCalendarCore::Event::Ptr(new KCalendarCore::Event);
KCalendarCore::Event::Ptr remoteEvent = KCalendarCore::Event::Ptr(new KCalendarCore::Event);
jsonToKCal(local, localEvent, defaultReminderStartOffset, icalFormat, &changed);
jsonToKCal(remote, remoteEvent, defaultReminderStartOffset, icalFormat, &changed);
if (GoogleCalendarIncidenceComparator::incidencesEqual(localEvent, remoteEvent)) {
return false; // they're equal, so the local modification is not real.
}
return true;
}
// returns true if the last sync was marked as successful, and then marks the current
// sync as being unsuccessful. The sync adapter should set it to true manually
// once sync succeeds.
bool wasLastSyncSuccessful(int accountId, bool *needCleanSync)
{
QString settingsFileName = QString::fromLatin1("%1/%2/gcal.ini")
.arg(PRIVILEGED_DATA_DIR)
.arg(QString::fromLatin1(SYNC_DATABASE_DIR));
if (!QFile::exists(settingsFileName)) {
qCDebug(lcSocialPlugin) << "gcal.ini settings file does not exist, triggering clean sync";
*needCleanSync = true;
return false;
}
QSettings settingsFile(settingsFileName, QSettings::IniFormat);
// needCleanSync will be true if and only if an unrecoverable error occurred during the previous sync.
*needCleanSync = settingsFile.value(QString::fromLatin1("%1-needCleanSync").arg(accountId), QVariant::fromValue<bool>(false)).toBool();
bool retn = settingsFile.value(QString::fromLatin1("%1-success").arg(accountId), QVariant::fromValue<bool>(false)).toBool();
settingsFile.setValue(QString::fromLatin1("%1-success").arg(accountId), QVariant::fromValue<bool>(false));
int pluginVersion = settingsFile.value(QString::fromLatin1("%1-pluginVersion").arg(accountId), QVariant::fromValue<int>(GOOGLE_CAL_SYNC_PLUGIN_VERSION)).toInt();
if (pluginVersion != GOOGLE_CAL_SYNC_PLUGIN_VERSION) {
qCDebug(lcSocialPlugin) << "Google cal sync plugin version mismatch, force clean sync";
retn = false;
}
return retn;
}
void setLastSyncSuccessful(int accountId)
{
QString settingsFileName = QString::fromLatin1("%1/%2/gcal.ini")
.arg(PRIVILEGED_DATA_DIR)
.arg(QString::fromLatin1(SYNC_DATABASE_DIR));
QSettings settingsFile(settingsFileName, QSettings::IniFormat);
settingsFile.setValue(QString::fromLatin1("%1-needCleanSync").arg(accountId), QVariant::fromValue<bool>(false));
settingsFile.setValue(QString::fromLatin1("%1-success").arg(accountId), QVariant::fromValue<bool>(true));
settingsFile.setValue(QString::fromLatin1("%1-pluginVersion").arg(accountId), GOOGLE_CAL_SYNC_PLUGIN_VERSION);
}
// Move all items with a recurrenceId after those without
// Retain the same order within the two groups
void reorderAdditions(KCalendarCore::Incidence::List &addedList) {
// This is a QVector so we want to avoid expensive insertions/deletions
int nextSwap = 0;
for (int pos = 0; pos < addedList.size() - 1; ++pos) {
const KCalendarCore::Incidence::Ptr from = addedList[pos];
if (from->hasRecurrenceId()) {
// Need to swap
if (nextSwap <= pos) {
nextSwap = pos + 1;
}
// Find the next sensible swap position
while (nextSwap < addedList.size() - 1 && addedList[nextSwap]->hasRecurrenceId()) {
++nextSwap;
}
// Swap the item positions
addedList[pos] = addedList[nextSwap];
addedList[nextSwap] = from;
}
}
}
QString toBase32hex(QByteArray bytes)
{
// See RFC2938 section 3.1.2
static const char convert[] = "0123456789abcdefghijklmnopqrstuv";
int const length = bytes.length();
QString result;
// pos represents the bit position, taking 5 at a time
for (int pos = 0; pos < length * 8; pos += 5) {
quint8 const startbyte = pos / 8;
quint8 const underflowstart = pos % 8;
quint8 const underflowbits = underflowstart > 3 ? 8 - underflowstart : 5;
quint8 const overflowend = 5 - underflowbits;
quint8 const underflowmask = ((2 << (underflowbits - 1)) - 1) << underflowstart;
int val = (bytes[startbyte] & underflowmask) >> underflowstart;
if ((overflowend > 0) && (startbyte < (length - 1))) {
quint8 const overflowmask = ((2 << (overflowend - 1)) - 1);
val += (bytes[startbyte + 1] & overflowmask) << underflowbits;
}
Q_ASSERT(val < 32);
result += convert[val];
}
return result;
}
QString percentEnc(const QString &str) {
return QString::fromUtf8(QUrl::toPercentEncoding(calendarId));
}
QString generate_uuid()
{
// UUID documentation here:
// https://developers.google.com/calendar/v3/reference/events#id
// Generate using RFC4122
return toBase32hex(QUuid::createUuid().toRfc4122());
}
QByteArray jsonReplaceValue(const QByteArray &json, const QString &key, const QJsonValue &value)
{
// This is expensive, so should be used sparingly
QJsonObject object = QJsonDocument::fromJson(json).object();
object.insert(key, value);
return QJsonDocument(object).toJson();
}
struct ErrorDetails {
QString reason;
QString message;
};
QString getErrorReason(const QByteArray &replyData)
{
QString reason;
QJsonParseError error;
QJsonDocument doc = QJsonDocument::fromJson(replyData, &error);
if (error.error == QJsonParseError::NoError) {
QJsonObject object = doc.object().value(QStringLiteral("error")).toObject();;
reason = object.value(QStringLiteral("errors")).toArray().first().toObject().value(QStringLiteral("reason")).toString();
} else {
qCDebug(lcSocialPlugin) << "Json parse error:" << error.errorString();
}
return reason;
}
KCalendarCore::Event::Ptr dissociateSingleOccurrence(const KCalendarCore::Event::Ptr &event, const QDateTime &dateTime)
{
// Create a new incidence
KCalendarCore::Event::Ptr newEvent = KCalendarCore::Event::Ptr(event->clone());
newEvent->setCreated(QDateTime::currentDateTimeUtc());
newEvent->setSchedulingID(QString());
if (newEvent->recurs()) {
newEvent->clearRecurrence();
}
// Add a recurrence rule to the parent if it needs it
if (event->allDay()) {
if (!event->recursOn(dateTime.date(), dateTime.timeZone())) {
event->recurrence()->addRDate(dateTime.date());
}
} else {
if (!event->recursAt(dateTime)) {
event->recurrence()->addRDateTime(dateTime);
}
}
// Set the recurrenceId for the new incidence
// Don't save milliseconds
QDateTime recId(dateTime);
recId.setTime(QTime(recId.time().hour(),
recId.time().minute(),
recId.time().second()));
newEvent->setRecurrenceId(recId);
return newEvent;
}
}
GoogleCalendarSyncAdaptor::GoogleCalendarSyncAdaptor(QObject *parent)
: GoogleDataTypeSyncAdaptor(SocialNetworkSyncAdaptor::Calendars, parent)
, m_syncSucceeded(false)
, m_accountId(0)
, m_calendar(mKCal::ExtendedCalendar::Ptr(new mKCal::ExtendedCalendar(QTimeZone::utc())))
, m_storage(mKCal::ExtendedCalendar::defaultStorage(m_calendar))
, m_storageNeedsSave(false)
{
m_calendar->setUpdateLastModifiedOnChange(false);
setInitialActive(true);
}
GoogleCalendarSyncAdaptor::~GoogleCalendarSyncAdaptor()
{
}
QString GoogleCalendarSyncAdaptor::syncServiceName() const
{
return QStringLiteral("google-calendars");
}
void GoogleCalendarSyncAdaptor::sync(const QString &dataTypeString, int accountId)
{
m_storage->open(); // we close it in finalCleanup()
m_accountId = accountId; // needed by finalCleanup()
GoogleDataTypeSyncAdaptor::sync(dataTypeString, accountId);
}
void GoogleCalendarSyncAdaptor::finalCleanup()
{
if (m_accountId != 0) {
if (!m_syncSucceeded) {
qCDebug(lcSocialPluginTrace) << "Sync failed, configuring for next sync";
// sync failed. check to see if we need to apply any changes to the database.
const QSet<QString> calendarsRequiringChange = m_timeMinFailure + m_syncTokenFailure;
const QDateTime yesterdayDate = QDateTime::currentDateTimeUtc().addDays(-1);
for (const QString &calendarId : calendarsRequiringChange) {
// this codepath is hit if the server replied with HTTP 410 for the sync token or timeMin value.
if (mKCal::Notebook::Ptr notebook = notebookForCalendarId(calendarId)) {
if (m_syncTokenFailure.contains(calendarId)) {
// this sync cycle failed due to the sync token being invalidated server-side.
// trigger clean sync with wide time span on next sync.
qCInfo(lcSocialPlugin) << "Clearing sync time for calendar:" << calendarId;
notebook->setSyncDate(QDateTime());
} else if (m_timeMinFailure.contains(calendarId)) {