From bf94aaea7527a8f5b9f3b8c1ab6ff4e88cbd748f Mon Sep 17 00:00:00 2001 From: Andrew Date: Wed, 4 Dec 2013 12:34:12 -0600 Subject: [PATCH] Rework the update checking system --- CMakeLists.txt | 46 +++++-- MultiMC.cpp | 7 +- MultiMC.h | 8 +- MultiMCVersion.h | 13 +- config.h.in | 14 +- gui/MainWindow.cpp | 11 +- gui/MainWindow.h | 2 +- logic/GoUpdate.cpp | 99 -------------- logic/GoUpdate.h | 43 ------ logic/updater/UpdateChecker.cpp | 234 ++++++++++++++++++++++++++++++++ logic/updater/UpdateChecker.h | 93 +++++++++++++ 11 files changed, 394 insertions(+), 176 deletions(-) delete mode 100644 logic/GoUpdate.cpp delete mode 100644 logic/GoUpdate.h create mode 100644 logic/updater/UpdateChecker.cpp create mode 100644 logic/updater/UpdateChecker.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 95b1c18f..f5ea5026 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -118,20 +118,50 @@ SET(MultiMC_VERSION_MINOR 0) SET(MultiMC_VERSION_BUILD -1 CACHE STRING "Build number. -1 for no build number.") # Build type -SET(MultiMC_VERSION_BUILD_TYPE "custombuild" CACHE STRING "Build type. Usually corresponds to the buildbot build name. Empty string for no build type.") +SET(MultiMC_VERSION_BUILD_TYPE "custombuild" CACHE STRING "Build type. If this is set, it is appended to the end of the version string with a dash (-. It is not used for anything other than indicating in the version string what type of build this is (eg 'lin64').") +# Version channel +SET(MultiMC_VERSION_CHANNEL "" CACHE STRING "The current build's channel. Included in the version string.") + +# Channel list URL +SET(MultiMC_CHANLIST_URL "" CACHE STRING "URL for the channel list.") + +# Updater enabled? +SET(MultiMC_UPDATER false CACHE BOOL "Whether or not the update system is enabled. If this is enabled, you must also set MultiMC_CHANLIST_URL and MultiMC_VERSION_CHANNEL in order for it to work properly.") + + +# Build a version string to display in the configure logs. SET(MultiMC_VERSION_STRING "${MultiMC_VERSION_MAJOR}.${MultiMC_VERSION_MINOR}") - IF (MultiMC_VERSION_BUILD GREATER -1) SET(MultiMC_VERSION_STRING "${MultiMC_VERSION_STRING}.${MultiMC_VERSION_BUILD}") ENDIF () - +IF (NOT MultiMC_VERSION_CHANNEL STREQUAL "") + SET(MultiMC_VERSION_STRING "${MultiMC_VERSION_STRING}-${MultiMC_VERSION_CHANNEL}") +ENDIF () IF (NOT MultiMC_VERSION_BUILD_TYPE STREQUAL "") SET(MultiMC_VERSION_STRING "${MultiMC_VERSION_STRING}-${MultiMC_VERSION_BUILD_TYPE}") ENDIF () MESSAGE(STATUS "MultiMC 5 version ${MultiMC_VERSION_STRING}") +# If the update system is enabled, make sure MultiMC_CHANLIST_URL and MultiMC_VERSION_CHANNEL are set. +IF (MultiMC_UPDATER) + IF (MultiMC_VERSION_CHANNEL STREQUAL "") + MESSAGE(FATAL_ERROR "Update system is enabled, but MultiMC_VERSION_CHANNEL is not set.\n" + "Please ensure the CMake variables MultiMC_VERSION_CHANNEL, MultiMC_CHANLIST_URL, and MultiMC_VERSION_BUILD are set.") + ENDIF () + IF (MultiMC_CHANLIST_URL STREQUAL "") + MESSAGE(FATAL_ERROR "Update system is enabled, but MultiMC_CHANLIST_URL is not set.\n" + "Please ensure the CMake variables MultiMC_VERSION_CHANNEL, MultiMC_CHANLIST_URL, and MultiMC_VERSION_BUILD are set.") + ENDIF () + IF (MultiMC_VERSION_BUILD LESS 0) + MESSAGE(FATAL_ERROR "Update system is enabled, but MultiMC_VERSION_BUILD is not set.\n" + "Please ensure the CMake variables MultiMC_VERSION_CHANNEL, MultiMC_CHANLIST_URL, and MultiMC_VERSION_BUILD are set.") + ENDIF () + + MESSAGE(STATUS "Updater is enabled. Channel list URL: ${MultiMC_CHANLIST_URL}") +ENDIF () + #### Custom target to just print the version. ADD_CUSTOM_TARGET(version echo "Version: ${MultiMC_VERSION_STRING}") @@ -151,10 +181,6 @@ ELSE() MESSAGE(STATUS "Failed to check Git commit. ${GIT_COMMIT_CHECK_RESULTVAR}") ENDIF() -#### GoUpdate URL -SET(MultiMC_REPO_BASE_URL "invalid" CACHE STRING "Base URL for the updater.") -SET(MultiMC_VERSION_BRANCH "invalid" CACHE STRING "URL of the stable update repo.") - ######## Configure header ######## configure_file("${PROJECT_SOURCE_DIR}/config.h.in" "${PROJECT_BINARY_DIR}/include/config.h") @@ -290,6 +316,10 @@ logic/auth/flows/ValidateTask.cpp logic/auth/flows/InvalidateTask.h logic/auth/flows/InvalidateTask.cpp +# Update system +logic/updater/UpdateChecker.h +logic/updater/UpdateChecker.cpp + # legacy instances logic/LegacyInstance.h logic/LegacyInstance.cpp @@ -358,8 +388,6 @@ logic/NagUtils.h logic/NagUtils.cpp logic/SkinUtils.h logic/SkinUtils.cpp -logic/GoUpdate.h -logic/GoUpdate.cpp ) diff --git a/MultiMC.cpp b/MultiMC.cpp index 3df73c18..128e71f3 100644 --- a/MultiMC.cpp +++ b/MultiMC.cpp @@ -20,7 +20,8 @@ #include "logic/net/HttpMetaCache.h" #include "logic/JavaUtils.h" -#include "logic/GoUpdate.h" + +#include "logic/updater/UpdateChecker.h" #include "pathutils.h" #include "cmdutils.h" @@ -33,7 +34,7 @@ using namespace Util::Commandline; MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv), - m_version{VERSION_MAJOR, VERSION_MINOR, VERSION_BUILD, VERSION_BUILD_TYPE} + m_version{VERSION_MAJOR, VERSION_MINOR, VERSION_BUILD, VERSION_CHANNEL, VERSION_BUILD_TYPE} { setOrganizationName("MultiMC"); setApplicationName("MultiMC5"); @@ -140,7 +141,7 @@ MultiMC::MultiMC(int &argc, char **argv) : QApplication(argc, argv), initGlobalSettings(); // initialize the updater - m_go_update.reset(new GoUpdate()); + m_updateChecker.reset(new UpdateChecker()); // and instances auto InstDirSetting = m_settings->getSetting("InstanceDir"); diff --git a/MultiMC.h b/MultiMC.h index 0ab7a8b5..659104ba 100644 --- a/MultiMC.h +++ b/MultiMC.h @@ -17,7 +17,7 @@ class IconList; class QNetworkAccessManager; class ForgeVersionList; class JavaVersionList; -class GoUpdate; +class UpdateChecker; #if defined(MMC) #undef MMC @@ -85,9 +85,9 @@ public: return m_metacache; } - std::shared_ptr goupdate() + std::shared_ptr updateChecker() { - return m_go_update; + return m_updateChecker; } std::shared_ptr lwjgllist(); @@ -112,7 +112,7 @@ private: std::shared_ptr m_mmc_translator; std::shared_ptr m_settings; std::shared_ptr m_instances; - std::shared_ptr m_go_update; + std::shared_ptr m_updateChecker; std::shared_ptr m_accounts; std::shared_ptr m_icons; std::shared_ptr m_qnam; diff --git a/MultiMCVersion.h b/MultiMCVersion.h index 863976b2..8978516b 100644 --- a/MultiMCVersion.h +++ b/MultiMCVersion.h @@ -32,8 +32,9 @@ struct MultiMCVersion QString::number(major), QString::number(minor)); - if (build > 0) vstr += QString(".%1").arg(QString::number(build)); - if (!buildType.isEmpty()) vstr += QString("-%1").arg(buildType); + if (build >= 0) vstr += "." + QString::number(build); + if (!channel.isEmpty()) vstr += "-" + channel; + if (!buildType.isEmpty()) vstr += "-" + buildType; return vstr; } @@ -60,10 +61,14 @@ struct MultiMCVersion */ int build; + /*! + * \brief This build's channel. + */ + QString channel; + /*! * \brief The build type. - * This indicates the type of build that this is. For example, lin64-stable. - * Usually corresponds to this build's buildbot builder name. + * This indicates the type of build that this is. For example, lin64 or custombuild. */ QString buildType; }; diff --git a/config.h.in b/config.h.in index 26c8b1e9..b58dc322 100644 --- a/config.h.in +++ b/config.h.in @@ -2,19 +2,17 @@ #define VERSION_MAJOR @MultiMC_VERSION_MAJOR@ #define VERSION_MINOR @MultiMC_VERSION_MINOR@ -// Build number and type -- numer is used by the updater, type is purely visual +// Build number, channel, and type -- number and channel are used by the updater, type is purely visual #define VERSION_BUILD @MultiMC_VERSION_BUILD@ +#define VERSION_CHANNEL "@MultiMC_VERSION_CHANNEL@" #define VERSION_BUILD_TYPE "@MultiMC_VERSION_BUILD_TYPE@" -// URL base for the updater -#define VERSION_REPO "@MultiMC_REPO_BASE_URL@" +// URL for the updater's channel +#define CHANLIST_URL "@MultiMC_CHANLIST_URL@" -// The branch used for this build. User can switch between 'stable' and 'develop' -// if this is one of them. Otherwise, it pulls only from this one. -#define VERSION_BRANCH "@MultiMC_VERSION_BRANCH@" - -// the commit hash of this build +// The commit hash of this build #define GIT_COMMIT "@MultiMC_GIT_COMMIT@" // This is printed on start to standard output #define VERSION_STR "@MultiMC_VERSION_STRING@" + diff --git a/gui/MainWindow.cpp b/gui/MainWindow.cpp index a6796a29..39c78360 100644 --- a/gui/MainWindow.cpp +++ b/gui/MainWindow.cpp @@ -84,7 +84,8 @@ #include "logic/SkinUtils.h" #include "logic/LegacyInstance.h" -#include + +#include MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { @@ -239,8 +240,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi } // set up the updater object. - auto updater = MMC->goupdate(); - connect(updater.get(), SIGNAL(updateAvailable()), SLOT(updateAvailable())); + auto updater = MMC->updateChecker(); + QObject::connect(updater.get(), &UpdateChecker::updateAvailable, this, &MainWindow::updateAvailable); // if automatic update checks are allowed, start one. if(MMC->settings()->get("AutoUpdate").toBool()) on_actionCheckUpdate_triggered(); @@ -426,7 +427,7 @@ bool MainWindow::eventFilter(QObject *obj, QEvent *ev) return QMainWindow::eventFilter(obj, ev); } -void MainWindow::updateAvailable() +void MainWindow::updateAvailable(QString repo, QString versionName, int versionId) { UpdateDialog dlg; UpdateAction action = (UpdateAction) dlg.exec(); @@ -631,7 +632,7 @@ void MainWindow::on_actionConfig_Folder_triggered() void MainWindow::on_actionCheckUpdate_triggered() { - auto updater = MMC->goupdate(); + auto updater = MMC->updateChecker(); updater->checkForUpdate(); } diff --git a/gui/MainWindow.h b/gui/MainWindow.h index e3713f89..1f498eca 100644 --- a/gui/MainWindow.h +++ b/gui/MainWindow.h @@ -161,7 +161,7 @@ slots: void startTask(Task *task); - void updateAvailable(); + void updateAvailable(QString repo, QString versionName, int versionId); void activeAccountChanged(); diff --git a/logic/GoUpdate.cpp b/logic/GoUpdate.cpp deleted file mode 100644 index 6ac53d19..00000000 --- a/logic/GoUpdate.cpp +++ /dev/null @@ -1,99 +0,0 @@ - -#include "GoUpdate.h" - -#include "config.h" -#include "logger/QsLog.h" - -GoUpdate::GoUpdate() -{ - currentBuildIndex = VERSION_BUILD; - builderName = VERSION_BUILD_TYPE; - repoUrlBase = VERSION_REPO; -} - -void GoUpdate::updateCheckFailed() -{ - // TODO: log errors better - QLOG_ERROR() << "Update check failed for reasons unknown."; -} - -void GoUpdate::updateCheckFinished() -{ - QJsonParseError jsonError; - QByteArray data; - { - ByteArrayDownloadPtr dl = - std::dynamic_pointer_cast(index_job->first()); - data = dl->m_data; - index_job.reset(); - } - - QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError); - if (jsonError.error != QJsonParseError::NoError || !jsonDoc.isObject()) - { - return; - } - - QVariant doc = jsonDoc.toVariant(); - auto stuff = doc.toMap(); - - // check api version (or later, branch?) - int ApiVersion = stuff["ApiVersion"].toInt(); - if (ApiVersion != 0) - return; - - // parse and store the channel list - auto parsedChannels = stuff["Channels"].toList(); - for (auto channel : parsedChannels) - { - auto chanMap = channel.toMap(); - channels.append({chanMap["Id"].toString(), chanMap["Name"].toString(), - chanMap["CurrentVersion"].toInt()}); - } - - // parse and store the version list - auto parsedVersions = stuff["Versions"].toList(); - for (auto version : parsedVersions) - { - auto verMap = version.toMap(); - int versionId = verMap["Id"].toInt(); - versions.append({versionId, verMap["Name"].toString()}); - if (currentBuildIndex < versionId) - { - newBuildIndex = versionId; - } - } - - if (newBuildIndex != -1) - { - QLOG_INFO() << "Update is available."; - emit updateAvailable(); - } - else - { - QLOG_INFO() << "Update check finished."; - } -} - -void GoUpdate::checkForUpdate() -{ - if (repoUrlBase == "invalid") - { - return; - } - - auto job = new NetJob("Assets index"); - job->addNetAction( - ByteArrayDownload::make(QUrl(repoUrlBase + "/" + VERSION_BRANCH + "/index.json"))); - connect(job, SIGNAL(succeeded()), SLOT(updateCheckFinished())); - connect(job, SIGNAL(failed()), SLOT(updateCheckFailed())); - index_job.reset(job); - job->start(); -} - -/* - files.multimc.org/lin64/ - Hi Forkkie - files.multimc.org/win32/ - files.multimc.org/lin32/ -*/ diff --git a/logic/GoUpdate.h b/logic/GoUpdate.h deleted file mode 100644 index 756a71cf..00000000 --- a/logic/GoUpdate.h +++ /dev/null @@ -1,43 +0,0 @@ -#pragma once -#include "net/NetJob.h" - -class GoUpdate : public QObject -{ - Q_OBJECT - -public: - struct version_channel - { - QString id; - QString name; - int latestVersion; - }; - - struct version_summary - { - int id; - QString name; - }; - -signals: - void updateAvailable(); - -private slots: - void updateCheckFinished(); - void updateCheckFailed(); - -public: - GoUpdate(); - void checkForUpdate(); -private: - NetJobPtr index_job; - NetJobPtr fromto_job; - - QString repoUrlBase; - QString builderName; - int currentBuildIndex; - int newBuildIndex = -1; - - QList versions; - QList channels; -}; diff --git a/logic/updater/UpdateChecker.cpp b/logic/updater/UpdateChecker.cpp new file mode 100644 index 00000000..68c32ae8 --- /dev/null +++ b/logic/updater/UpdateChecker.cpp @@ -0,0 +1,234 @@ +/* Copyright 2013 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 "MultiMC.h" + +#include "config.h" +#include "logger/QsLog.h" + +#include +#include +#include + +#define API_VERSION 0 +#define CHANLIST_FORMAT 0 + +UpdateChecker::UpdateChecker() +{ + m_currentChannel = VERSION_CHANNEL; + m_channelListUrl = CHANLIST_URL; + m_updateChecking = false; + m_chanListLoading = false; + m_checkUpdateWaiting = false; + m_chanListLoaded = false; +} + +void UpdateChecker::checkForUpdate() +{ + QLOG_DEBUG() << "Checking for updates."; + + // If the channel list hasn't loaded yet, load it and defer checking for updates until later. + if (!m_chanListLoaded) + { + QLOG_DEBUG() << "Channel list isn't loaded yet. Loading channel list and deferring update check."; + m_checkUpdateWaiting = true; + updateChanList(); + return; + } + + if (m_updateChecking) + { + QLOG_DEBUG() << "Ignoring update check request. Already checking for updates."; + return; + } + + m_updateChecking = true; + + // Get the URL for the channel we're using. + // TODO: Allow user to select channels. For now, we'll just use the current channel. + QString updateChannel = m_currentChannel; + + // Find the desired channel within the channel list and get its repo URL. If if cannot be found, error. + m_repoUrl = ""; + for (ChannelListEntry entry : m_channels) + { + if (entry.id == updateChannel) + m_repoUrl = entry.url; + } + + // If we didn't find our channel, error. + if (m_repoUrl.isEmpty()) + { + emit updateCheckFailed(); + return; + } + + QUrl indexUrl = QUrl(m_repoUrl).resolved(QUrl("index.json")); + + auto job = new NetJob("GoUpdate Repository Index"); + job->addNetAction(ByteArrayDownload::make(indexUrl)); + connect(job, SIGNAL(succeeded()), SLOT(updateCheckFinished())); + connect(job, SIGNAL(failed()), SLOT(updateCheckFailed())); + indexJob.reset(job); + job->start(); +} + +void UpdateChecker::updateCheckFinished() +{ + QLOG_DEBUG() << "Finished downloading repo index. Checking for new versions."; + + QJsonParseError jsonError; + QByteArray data; + { + ByteArrayDownloadPtr dl = std::dynamic_pointer_cast(indexJob->first()); + data = dl->m_data; + indexJob.reset(); + } + + QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError); + if (jsonError.error != QJsonParseError::NoError || !jsonDoc.isObject()) + { + QLOG_ERROR() << "Failed to parse GoUpdate repository index. JSON error" << jsonError.errorString() << "at offset" << jsonError.offset; + return; + } + + QJsonObject object = jsonDoc.object(); + + bool success = false; + int apiVersion = object.value("ApiVersion").toVariant().toInt(&success); + if (apiVersion != API_VERSION || !success) + { + QLOG_ERROR() << "Failed to check for updates. API version mismatch. We're using" << API_VERSION << "server has" << apiVersion; + return; + } + + QLOG_DEBUG() << "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()) + { + QLOG_DEBUG() << "Found newer version with ID" << 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 != MMC->version().build) + { + // Update! + emit updateAvailable(m_repoUrl, newestVersion.value("Name").toVariant().toString(), newBuildNumber); + } + + m_updateChecking = false; +} + +void UpdateChecker::updateCheckFailed() +{ + // TODO: log errors better + QLOG_ERROR() << "Update check failed for reasons unknown."; +} + +void UpdateChecker::updateChanList() +{ + QLOG_DEBUG() << "Loading the channel list."; + + if (m_channelListUrl.isEmpty()) + { + QLOG_ERROR() << "Failed to update channel list. No channel list URL set." + << "If you'd like to use MultiMC's update system, please pass the channel list URL to CMake at compile time."; + return; + } + + m_chanListLoading = true; + NetJob* job = new NetJob("Update System Channel List"); + job->addNetAction(ByteArrayDownload::make(QUrl(m_channelListUrl))); + QObject::connect(job, &NetJob::succeeded, this, &UpdateChecker::chanListDownloadFinished); + QObject::connect(job, &NetJob::failed, this, &UpdateChecker::chanListDownloadFailed); + chanListJob.reset(job); + job->start(); +} + +void UpdateChecker::chanListDownloadFinished() +{ + QByteArray data; + { + ByteArrayDownloadPtr dl = std::dynamic_pointer_cast(chanListJob->first()); + data = dl->m_data; + chanListJob.reset(); + } + + QJsonParseError jsonError; + QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError); + if (jsonError.error != QJsonParseError::NoError) + { + // TODO: Report errors to the user. + QLOG_ERROR() << "Failed to parse channel list JSON:" << jsonError.errorString() << "at" << jsonError.offset; + return; + } + + QJsonObject object = jsonDoc.object(); + + bool success = false; + int formatVersion = object.value("format_version").toVariant().toInt(&success); + if (formatVersion != CHANLIST_FORMAT || !success) + { + QLOG_ERROR() << "Failed to check for updates. Channel list format version mismatch. We're using" << CHANLIST_FORMAT << "server has" << formatVersion; + return; + } + + // Load channels into a temporary array. + QList 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()) + { + QLOG_ERROR() << "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; + QLOG_INFO() << "Successfully loaded UpdateChecker channel list."; + + // If we're waiting to check for updates, do that now. + if (m_checkUpdateWaiting) + checkForUpdate(); +} + +void UpdateChecker::chanListDownloadFailed() +{ + m_chanListLoading = false; + QLOG_ERROR() << "Failed to download channel list."; +} + diff --git a/logic/updater/UpdateChecker.h b/logic/updater/UpdateChecker.h new file mode 100644 index 00000000..829f7303 --- /dev/null +++ b/logic/updater/UpdateChecker.h @@ -0,0 +1,93 @@ +/* Copyright 2013 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. + */ + +#pragma once + +#include "logic/net/NetJob.h" + +#include + +class UpdateChecker : public QObject +{ + Q_OBJECT + +public: +signals: + //! Signal emitted when an update is available. Passes the URL for the repo and the ID and name for the version. + void updateAvailable(QString repoUrl, QString versionName, int versionId); + +private slots: + void updateCheckFinished(); + void updateCheckFailed(); + + void chanListDownloadFinished(); + void chanListDownloadFailed(); + +public: + UpdateChecker(); + void checkForUpdate(); + + /*! + * Causes the update checker to download the channel list from the URL specified in config.h (generated by CMake). + * If this isn't called before checkForUpdate(), it will automatically be called. + */ + void updateChanList(); + + /*! + * An entry in the channel list. + */ + struct ChannelListEntry + { + QString id; + QString name; + QString description; + QString url; + }; + +private: + NetJobPtr indexJob; + NetJobPtr chanListJob; + + QString m_repoUrl; + + QString m_channelListUrl; + QString m_currentChannel; + + QList m_channels; + + /*! + * True while the system is checking for updates. + * If checkForUpdate is called while this is true, it will be ignored. + */ + bool m_updateChecking; + + /*! + * True if the channel list has loaded. + * If this is false, trying to check for updates will call updateChanList first. + */ + bool m_chanListLoaded; + + /*! + * Set to true while the channel list is currently loading. + */ + bool m_chanListLoading; + + /*! + * Set to true when checkForUpdate is called while the channel list isn't loaded. + * When the channel list finishes loading, if this is true, the update checker will check for updates. + */ + bool m_checkUpdateWaiting; +}; +