sneedmc/launcher/updater/UpdateChecker.cpp
Sefa Eyeoglu 1175461030
refactor: switch to new versioning scheme
The new versioning system is based on the versioning system used by the
GNOME Foundation for the GNOME desktop.

We are dropping the "major version" as defined by SemVer and move to a
version number with a most and least significant number.

The most significant number must be incremented, if there are new
features or significant changes since last major release.

Otherwise, the least significant number must be incremented, if there
are only minor changes since the last release. New features or
significant changes mustn't be introduced by a bump of the least
significant number.

If a minor change would introduce small user-facing changes (like a
message-box or slight UI changes), it could still be classified as a
minor change.
At the end of the day, a human shall decide, if a change is minor or
significant, as there is no clear line that would separate a "minor" and
a "significant" change in a GUI-application.

Definitions:

feature: New user-facing functionality
significant change: Something that changes user-facing behavior
minor change: Something that fixes unexpected behavior

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
2022-08-12 14:22:24 +02:00

297 lines
9.5 KiB
C++

/* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "UpdateChecker.h"
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonValue>
#include <QDebug>
#define API_VERSION 0
#define CHANLIST_FORMAT 0
#include "BuildConfig.h"
UpdateChecker::UpdateChecker(shared_qobject_ptr<QNetworkAccessManager> nam, QString channelUrl, QString currentChannel)
{
m_network = nam;
m_channelUrl = channelUrl;
m_currentChannel = currentChannel;
#ifdef Q_OS_MAC
m_externalUpdater = new MacSparkleUpdater();
#endif
}
QList<UpdateChecker::ChannelListEntry> UpdateChecker::getChannelList() const
{
return m_channels;
}
bool UpdateChecker::hasChannels() const
{
return !m_channels.isEmpty();
}
ExternalUpdater* UpdateChecker::getExternalUpdater()
{
return m_externalUpdater;
}
void UpdateChecker::checkForUpdate(const QString& updateChannel, bool notifyNoUpdate)
{
if (m_externalUpdater)
{
m_externalUpdater->setBetaAllowed(updateChannel == "beta");
if (notifyNoUpdate)
{
qDebug() << "Checking for updates.";
m_externalUpdater->checkForUpdates();
} else
{
// The updater library already handles automatic update checks.
return;
}
}
else
{
qDebug() << "Checking for updates.";
// If the channel list hasn't loaded yet, load it and defer checking for updates until
// later.
if (!m_chanListLoaded)
{
qDebug() << "Channel list isn't loaded yet. Loading channel list and deferring update check.";
m_checkUpdateWaiting = true;
m_deferredUpdateChannel = updateChannel;
updateChanList(notifyNoUpdate);
return;
}
if (m_updateChecking)
{
qDebug() << "Ignoring update check request. Already checking for updates.";
return;
}
// Find the desired channel within the channel list and get its repo URL. If if cannot be
// found, error.
QString stableUrl;
m_newRepoUrl = "";
for (ChannelListEntry entry: m_channels)
{
qDebug() << "channelEntry = " << entry.id;
if (entry.id == "stable")
{
stableUrl = entry.url;
}
if (entry.id == updateChannel)
{
m_newRepoUrl = entry.url;
qDebug() << "is intended update channel: " << entry.id;
}
if (entry.id == m_currentChannel)
{
m_currentRepoUrl = entry.url;
qDebug() << "is current update channel: " << entry.id;
}
}
qDebug() << "m_repoUrl = " << m_newRepoUrl;
if (m_newRepoUrl.isEmpty())
{
qWarning() << "m_repoUrl was empty. defaulting to 'stable': " << stableUrl;
m_newRepoUrl = stableUrl;
}
// If nothing applies, error
if (m_newRepoUrl.isEmpty())
{
qCritical() << "failed to select any update repository for: " << updateChannel;
emit updateCheckFailed();
return;
}
m_updateChecking = true;
QUrl indexUrl = QUrl(m_newRepoUrl).resolved(QUrl("index.json"));
indexJob = new NetJob("GoUpdate Repository Index", m_network);
indexJob->addNetAction(Net::Download::makeByteArray(indexUrl, &indexData));
connect(indexJob.get(), &NetJob::succeeded, [this, notifyNoUpdate]() { updateCheckFinished(notifyNoUpdate); });
connect(indexJob.get(), &NetJob::failed, this, &UpdateChecker::updateCheckFailed);
indexJob->start();
}
}
void UpdateChecker::updateCheckFinished(bool notifyNoUpdate)
{
qDebug() << "Finished downloading repo index. Checking for new versions.";
QJsonParseError jsonError;
indexJob.reset();
QJsonDocument jsonDoc = QJsonDocument::fromJson(indexData, &jsonError);
indexData.clear();
if (jsonError.error != QJsonParseError::NoError || !jsonDoc.isObject())
{
qCritical() << "Failed to parse GoUpdate repository index. JSON error"
<< jsonError.errorString() << "at offset" << jsonError.offset;
m_updateChecking = false;
return;
}
QJsonObject object = jsonDoc.object();
bool success = false;
int apiVersion = object.value("ApiVersion").toVariant().toInt(&success);
if (apiVersion != API_VERSION || !success)
{
qCritical() << "Failed to check for updates. API version mismatch. We're using"
<< API_VERSION << "server has" << apiVersion;
m_updateChecking = false;
return;
}
qDebug() << "Processing repository version list.";
QJsonObject newestVersion;
QJsonArray versions = object.value("Versions").toArray();
for (QJsonValue versionVal : versions)
{
QJsonObject version = versionVal.toObject();
if (newestVersion.value("Id").toVariant().toInt() <
version.value("Id").toVariant().toInt())
{
newestVersion = version;
}
}
// We've got the version with the greatest ID number. Now compare it to our current build
// number and update if they're different.
int newBuildNumber = newestVersion.value("Id").toVariant().toInt();
if (newBuildNumber != m_currentBuild)
{
qDebug() << "Found newer version with ID" << newBuildNumber;
// Update!
GoUpdate::Status updateStatus;
updateStatus.updateAvailable = true;
updateStatus.currentVersionId = m_currentBuild;
updateStatus.currentRepoUrl = m_currentRepoUrl;
updateStatus.newVersionId = newBuildNumber;
updateStatus.newRepoUrl = m_newRepoUrl;
emit updateAvailable(updateStatus);
}
else if (notifyNoUpdate)
{
emit noUpdateFound();
}
m_updateChecking = false;
}
void UpdateChecker::updateCheckFailed()
{
qCritical() << "Update check failed for reasons unknown.";
}
void UpdateChecker::updateChanList(bool notifyNoUpdate)
{
qDebug() << "Loading the channel list.";
if (m_chanListLoading)
{
qDebug() << "Ignoring channel list update request. Already grabbing channel list.";
return;
}
m_chanListLoading = true;
chanListJob = new NetJob("Update System Channel List", m_network);
chanListJob->addNetAction(Net::Download::makeByteArray(QUrl(m_channelUrl), &chanlistData));
connect(chanListJob.get(), &NetJob::succeeded, [this, notifyNoUpdate]() { chanListDownloadFinished(notifyNoUpdate); });
connect(chanListJob.get(), &NetJob::failed, this, &UpdateChecker::chanListDownloadFailed);
chanListJob->start();
}
void UpdateChecker::chanListDownloadFinished(bool notifyNoUpdate)
{
chanListJob.reset();
QJsonParseError jsonError;
QJsonDocument jsonDoc = QJsonDocument::fromJson(chanlistData, &jsonError);
chanlistData.clear();
if (jsonError.error != QJsonParseError::NoError)
{
// TODO: Report errors to the user.
qCritical() << "Failed to parse channel list JSON:" << jsonError.errorString() << "at" << jsonError.offset;
m_chanListLoading = false;
return;
}
QJsonObject object = jsonDoc.object();
bool success = false;
int formatVersion = object.value("format_version").toVariant().toInt(&success);
if (formatVersion != CHANLIST_FORMAT || !success)
{
qCritical()
<< "Failed to check for updates. Channel list format version mismatch. We're using"
<< CHANLIST_FORMAT << "server has" << formatVersion;
m_chanListLoading = false;
return;
}
// Load channels into a temporary array.
QList<ChannelListEntry> loadedChannels;
QJsonArray channelArray = object.value("channels").toArray();
for (QJsonValue chanVal : channelArray)
{
QJsonObject channelObj = chanVal.toObject();
ChannelListEntry entry {
channelObj.value("id").toVariant().toString(),
channelObj.value("name").toVariant().toString(),
channelObj.value("description").toVariant().toString(),
channelObj.value("url").toVariant().toString()
};
if (entry.id.isEmpty() || entry.name.isEmpty() || entry.url.isEmpty())
{
qCritical() << "Channel list entry with empty ID, name, or URL. Skipping.";
continue;
}
loadedChannels.append(entry);
}
// Swap the channel list we just loaded into the object's channel list.
m_channels.swap(loadedChannels);
m_chanListLoading = false;
m_chanListLoaded = true;
qDebug() << "Successfully loaded UpdateChecker channel list.";
// If we're waiting to check for updates, do that now.
if (m_checkUpdateWaiting) {
checkForUpdate(m_deferredUpdateChannel, notifyNoUpdate);
}
emit channelListLoaded();
}
void UpdateChecker::chanListDownloadFailed(QString reason)
{
m_chanListLoading = false;
qCritical() << QString("Failed to download channel list: %1").arg(reason);
emit channelListLoaded();
}