diff options
Diffstat (limited to 'libraries/logic/updater/GoUpdate.cpp')
| -rw-r--r-- | libraries/logic/updater/GoUpdate.cpp | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/libraries/logic/updater/GoUpdate.cpp b/libraries/logic/updater/GoUpdate.cpp new file mode 100644 index 00000000..60d50e04 --- /dev/null +++ b/libraries/logic/updater/GoUpdate.cpp @@ -0,0 +1,216 @@ +#include "GoUpdate.h" +#include <QDebug> +#include <QDomDocument> +#include <QFile> +#include <Env.h> +#include <FileSystem.h> + +namespace GoUpdate +{ + +bool parseVersionInfo(const QByteArray &data, VersionFileList &list, QString &error) +{ + QJsonParseError jsonError; + QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError); + if (jsonError.error != QJsonParseError::NoError) + { + error = QString("Failed to parse version info JSON: %1 at %2") + .arg(jsonError.errorString()) + .arg(jsonError.offset); + qCritical() << error; + return false; + } + + QJsonObject json = jsonDoc.object(); + + qDebug() << data; + qDebug() << "Loading version info from JSON."; + QJsonArray filesArray = json.value("Files").toArray(); + for (QJsonValue fileValue : filesArray) + { + QJsonObject fileObj = fileValue.toObject(); + + QString file_path = fileObj.value("Path").toString(); +#ifdef Q_OS_MAC + // On OSX, the paths for the updater need to be fixed. + // basically, anything that isn't in the .app folder is ignored. + // everything else is changed so the code that processes the files actually finds + // them and puts the replacements in the right spots. + fixPathForOSX(file_path); +#endif + VersionFileEntry file{file_path, fileObj.value("Perms").toVariant().toInt(), + FileSourceList(), fileObj.value("MD5").toString(), }; + qDebug() << "File" << file.path << "with perms" << file.mode; + + QJsonArray sourceArray = fileObj.value("Sources").toArray(); + for (QJsonValue val : sourceArray) + { + QJsonObject sourceObj = val.toObject(); + + QString type = sourceObj.value("SourceType").toString(); + if (type == "http") + { + file.sources.append(FileSource("http", sourceObj.value("Url").toString())); + } + else + { + qWarning() << "Unknown source type" << type << "ignored."; + } + } + + qDebug() << "Loaded info for" << file.path; + + list.append(file); + } + + return true; +} + +bool processFileLists +( + const VersionFileList ¤tVersion, + const VersionFileList &newVersion, + const QString &rootPath, + const QString &tempPath, + NetJobPtr job, + OperationList &ops +) +{ + // First, if we've loaded the current version's file list, we need to iterate through it and + // delete anything in the current one version's list that isn't in the new version's list. + for (VersionFileEntry entry : currentVersion) + { + QFileInfo toDelete(FS::PathCombine(rootPath, entry.path)); + if (!toDelete.exists()) + { + qCritical() << "Expected file " << toDelete.absoluteFilePath() + << " doesn't exist!"; + } + bool keep = false; + + // + for (VersionFileEntry newEntry : newVersion) + { + if (newEntry.path == entry.path) + { + qDebug() << "Not deleting" << entry.path + << "because it is still present in the new version."; + keep = true; + break; + } + } + + // If the loop reaches the end and we didn't find a match, delete the file. + if (!keep) + { + if (toDelete.exists()) + ops.append(Operation::DeleteOp(entry.path)); + } + } + + // Next, check each file in MultiMC's folder and see if we need to update them. + for (VersionFileEntry entry : newVersion) + { + // TODO: Let's not MD5sum a ton of files on the GUI thread. We should probably find a + // way to do this in the background. + QString fileMD5; + QString realEntryPath = FS::PathCombine(rootPath, entry.path); + QFile entryFile(realEntryPath); + QFileInfo entryInfo(realEntryPath); + + bool needs_upgrade = false; + if (!entryFile.exists()) + { + needs_upgrade = true; + } + else + { + bool pass = true; + if (!entryInfo.isReadable()) + { + qCritical() << "File " << realEntryPath << " is not readable."; + pass = false; + } + if (!entryInfo.isWritable()) + { + qCritical() << "File " << realEntryPath << " is not writable."; + pass = false; + } + if (!entryFile.open(QFile::ReadOnly)) + { + qCritical() << "File " << realEntryPath << " cannot be opened for reading."; + pass = false; + } + if (!pass) + { + ops.clear(); + return false; + } + } + + if(!needs_upgrade) + { + QCryptographicHash hash(QCryptographicHash::Md5); + auto foo = entryFile.readAll(); + + hash.addData(foo); + fileMD5 = hash.result().toHex(); + if ((fileMD5 != entry.md5)) + { + qDebug() << "MD5Sum does not match!"; + qDebug() << "Expected:'" << entry.md5 << "'"; + qDebug() << "Got: '" << fileMD5 << "'"; + needs_upgrade = true; + } + } + + // skip file. it doesn't need an upgrade. + if (!needs_upgrade) + { + qDebug() << "File" << realEntryPath << " does not need updating."; + continue; + } + + // yep. this file actually needs an upgrade. PROCEED. + qDebug() << "Found file" << realEntryPath << " that needs updating."; + + // Go through the sources list and find one to use. + // TODO: Make a NetAction that takes a source list and tries each of them until one + // works. For now, we'll just use the first http one. + for (FileSource source : entry.sources) + { + if (source.type != "http") + continue; + + qDebug() << "Will download" << entry.path << "from" << source.url; + + // Download it to updatedir/<filepath>-<md5> where filepath is the file's + // path with slashes replaced by underscores. + QString dlPath = FS::PathCombine(tempPath, QString(entry.path).replace("/", "_")); + + // We need to download the file to the updatefiles folder and add a task + // to copy it to its install path. + auto download = MD5EtagDownload::make(source.url, dlPath); + download->m_expected_md5 = entry.md5; + job->addNetAction(download); + ops.append(Operation::CopyOp(dlPath, entry.path, entry.mode)); + } + } + return true; +} + +bool fixPathForOSX(QString &path) +{ + if (path.startsWith("MultiMC.app/")) + { + // remove the prefix and add a new, more appropriate one. + path.remove(0, 12); + return true; + } + else + { + qCritical() << "Update path not within .app: " << path; + return false; + } +} +}
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