477 lines
16 KiB
C++
477 lines
16 KiB
C++
/****************************************************************************
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** Modern Linbo GUI
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** Copyright (C) 2020 Dorian Zedler <dorian@itsblue.de>
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU Affero General Public License as published
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** by the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Affero General Public License for more details.
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**
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** You should have received a copy of the GNU Affero General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#include "linbobackend.h"
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#define LINBO_CMD(arg) QStringList("linbo_cmd") << (arg)
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using namespace std;
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LinboBackend::LinboBackend(QObject *parent) : QObject(parent)
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{
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this->setState(Initializing);
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this->logger = new LinboLogger(this);
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this->config = new LinboConfig(this);
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this->autostartTimer = new QTimer(this);
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this->autostartTimer->setSingleShot(true);
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this->autostartRemainingTimeRefreshTimer = new QTimer(this);
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this->autostartRemainingTimeRefreshTimer->setSingleShot(true);
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this->autostartRemainingTimeRefreshTimer->setInterval(10);
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this->autostartElapsedTimer = new QElapsedTimer();
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this->currentOs = nullptr;
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// read start.conf
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this->logger->log("Starting to parse start.conf", LinboLogger::LinboGuiInfo);
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ifstream input;
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input.open( "start.conf", ios_base::in );
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QString tmp_qstring;
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while( !input.eof() ) {
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// *** Image description section ***
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// entry in start tab
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char line[500];
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input.getline(line,500,'\n');
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tmp_qstring = QString::fromAscii( line, -1 ).stripWhiteSpace();
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if ( tmp_qstring.startsWith("#") || tmp_qstring.isEmpty() ) continue;
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tmp_qstring = tmp_qstring.section("#",0,0).stripWhiteSpace(); // Strip comment
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if(tmp_qstring.lower().compare("[os]") == 0) {
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LinboOs* tmpOs = read_os(&input);
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if(!tmpOs->getName().isEmpty()) {
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this->operatingSystems.append(tmpOs);
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if(tmpOs->getAutostart() && this->currentOs == nullptr)
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this->currentOs = tmpOs;
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// check if this is an additional/incremental image for an existing OS
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/* TODO unsigned int i; // Being checked later.
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for(i = 0; i < elements.size(); i++ ) {
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if(tmp_os.get_name().lower().compare(elements[i].get_name().lower()) == 0) {
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elements[i].image_history.push_back(tmp_image); break;
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}
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}
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if(i==elements.size()) { // Not included yet -> new image
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tmp_os.image_history.push_back(tmp_image);
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elements.push_back(tmp_os);
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}*/
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}
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else {
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tmpOs->deleteLater();
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}
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} else if(tmp_qstring.lower().compare("[linbo]") == 0) {
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read_globals(&input, config);
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} else if(tmp_qstring.lower().compare("[partition]") == 0) {
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LinboDiskPartition* tmpPartition = read_partition(&input);
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if(!tmpPartition->getPath().isEmpty()) {
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diskPartitions.append(tmpPartition);
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}
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else {
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tmpPartition->deleteLater();
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}
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}
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}
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input.close();
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this->logger->log("Finished to parsing start.conf", LinboLogger::LinboGuiInfo);
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this->logger->log("Loading global configuration", LinboLogger::LinboGuiInfo);
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// load global config
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QStringList command;
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// ascynchorons commands are logged to logger
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this->asynchronosProcess = new QProcess();
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connect( asynchronosProcess, SIGNAL(readyReadStandardOutput()),
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this, SLOT(readFromStdout()) );
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connect( asynchronosProcess, SIGNAL(readyReadStandardError()),
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this, SLOT(readFromStderr()) );
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// synchronos commands are not logged
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this->synchronosProcess = new QProcess();
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// client ip
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this->config->setIpAddress(this->executeCommand(true, "ip"));
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// mac address
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this->config->setMacAddress(this->executeCommand(true, "mac"));
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// Version
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this->config->setVersion(this->executeCommand(true, "version").stripWhiteSpace());
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// hostname
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this->config->setHostname(this->executeCommand(true, "hostname"));
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// CPU
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this->config->setCpu(this->executeCommand(true, "cpu"));
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// Memory
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this->config->setRamSize(this->executeCommand(true, "memory"));
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// Cache Size
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this->config->setCacheSize(this->executeCommand(true, "size"));
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// Harddisk Size
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QRegExp *removePartition = new QRegExp("[0-9]{1,2}") ;
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QString hd = this->config->getCache();
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// e.g. turn /dev/sda1 into /dev/sda
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hd.remove( *removePartition );
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this->config->setHddSize(this->executeCommand(true, "size", hd));
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this->logger->log("Finished loading global configuration", LinboLogger::LinboGuiInfo);
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// default select first OS if no other OS has been selected yet
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if(this->operatingSystems.length() > 0 && this->currentOs == nullptr)
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this->currentOs = this->operatingSystems[0];
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// triger autostart
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if(this->currentOs->getAutostart())
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this->executeAutostart();
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else
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this->setState(Idle);
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}
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// --------------------
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// - Public functions -
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// --------------------
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void LinboBackend::executeAutostart() {
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this->autostartTimer->setInterval(this->currentOs->getAutostartTimeout() * 1000);
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this->autostartElapsedTimer->restart();
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}
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void handleAutostartTimerTimeout() {
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}
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void LinboBackend::shutdown() {
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this->executeCommand(false, "busybox", QStringList("poweroff"));
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}
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void LinboBackend::reboot() {
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this->executeCommand(false, "busybox", QStringList("reboot"));
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}
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bool LinboBackend::startCurrentOs() {
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LinboOs* os = this->currentOs;
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if(os == nullptr || this->state != Idle || !this->currentOs->getStartbutton())
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return false;
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this->setState(Starting);
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return true;
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this->executeCommand(
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false,
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"start",
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os->getBootPartition(),
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os->getRootPartition(),
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os->getKernel(),
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os->getInitrd(),
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os->getKernelOptions(),
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this->config->getCache()
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);
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return true;
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}
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bool LinboBackend::syncCurrentOs() {
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LinboOs* os = this->currentOs;
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if(os == nullptr || this->state != Idle || !this->currentOs->getSyncbutton())
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return false;
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this->setState(Syncing);
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this->executeCommand(
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false,
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"syncstart",
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this->config->getServer(),
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this->config->getCache(),
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os->getBaseImage()->getName(),
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os->getDifferentialImage()->getName(),
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os->getBootPartition(),
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os->getRootPartition(),
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os->getKernel(),
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os->getInitrd(),
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os->getKernelOptions()
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);
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return true;
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}
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bool LinboBackend::reinstallCurrentOs() {
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LinboOs* os = this->currentOs;
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if(os == nullptr || this->state != Idle || !this->currentOs->getNewbutton())
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return false;
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this->setState(Reinstalling);
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this->executeCommand(
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false,
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"syncr",
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this->config->getServer(),
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this->config->getCache(),
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os->getBaseImage()->getName(),
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os->getDifferentialImage()->getName(),
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os->getBootPartition(),
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os->getRootPartition(),
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os->getKernel(),
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os->getInitrd(),
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os->getKernelOptions(),
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QString("force")
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);
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return true;
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}
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bool LinboBackend::partitionDrive(bool format) {
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if(this->state != Root)
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return false;
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this->setState(Partitioning);
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QStringList commandArgs = QStringList(format ? "partition":"partition_noformat");
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for( int i=0; i < this->diskPartitions.length(); i++) {
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LinboDiskPartition* p = this->diskPartitions[i];
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commandArgs.append(
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this->buildCommand(
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p->getPath(),
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QString::number(p->getSize()),
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p->getId(),
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QString((p->getBootable())?"bootable":"\" \""),
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p->getFstype()
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)
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);
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}
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this->executeCommand(false, this->linboCmdCommand, commandArgs);
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return true;
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}
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bool LinboBackend::initializeCache() {
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if(this->state != Root)
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return false;
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this->setState(InitializingCache);
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QStringList commandArgs = this->buildCommand("initcache", config->getServer(), config->getCache());
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if( this->config->getDownloadType().isEmpty() )
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commandArgs.append(this->config->getDownloadType());
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else
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commandArgs.append("rsync");
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for(int i = 0; i < this->operatingSystems.length(); i++) {
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LinboOs* os = this->operatingSystems[i];
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commandArgs.append(this->buildCommand(os->getBaseImage()->getName(), os->getDifferentialImage()->getName()));
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/* TODO ?? for(unsigned int j = 0; j < os[i].image_history.size(); j++) {
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saveappend( command, os[i].image_history[j].get_image() );
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}*/
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}
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this->executeCommand(false, this->linboCmdCommand, commandArgs);
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return true;
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}
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bool LinboBackend::updateLinbo() {
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if(this->state != Root)
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return false;
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this->executeCommand("update", this->config->getServer(), this->config->getCache());
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return true;
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}
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LinboLogger* LinboBackend::getLogger() {
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return this->logger;
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}
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LinboConfig* LinboBackend::getConfig() {
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return this->config;
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}
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QList<LinboOs*> LinboBackend::getOperatingSystems() {
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return this->operatingSystems;
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}
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LinboOs* LinboBackend::getCurrentOs() {
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return this->currentOs;
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}
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void LinboBackend::setCurrentOs(LinboOs* os) {
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if(this->state != Idle || !this->operatingSystems.contains(os) || this->currentOs == os)
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return;
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this->currentOs = os;
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emit this->currentOsChanged(os);
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}
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double LinboBackend::getAutostartTimeoutProgress() {
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return this->autostartElapsedTimer->elapsed() / this->autostartTimer->interval();
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}
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int LinboBackend::getAutostartTimeoutRemainingSeconds() {
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return (this->autostartTimer->interval() - this->autostartElapsedTimer->elapsed()) / 1000;
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}
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// -----------
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// - Helpers -
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// -----------
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QString LinboBackend::executeCommand(bool waitForFinished, QString command, QStringList commandArgs) {
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this->logger->log("Executing " + QString(waitForFinished ? "synchronos":"asynchronos") + ": " + command + " " + commandArgs.join(" "), LinboLogger::LinboGuiInfo);
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if(waitForFinished) {
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// clear old output
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this->synchronosProcess->readAll();
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synchronosProcess->start(command, commandArgs);
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synchronosProcess->waitForStarted();
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while( !synchronosProcess->waitForFinished(10000) ) {}
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return this->synchronosProcess->readAllStandardOutput();
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}
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else {
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asynchronosProcess->start(command, commandArgs);
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asynchronosProcess->waitForStarted();
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return "";
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}
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}
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void LinboBackend::readFromStdout() {
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QString stdOut = this->asynchronosProcess->readAllStandardOutput();
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QStringList lines = stdOut.split("\n");
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for(QString line : lines) {
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this->logger->log(line, LinboLogger::StdOut);
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}
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}
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void LinboBackend::readFromStderr() {
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QString stdOut = this->asynchronosProcess->readAllStandardError();
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QStringList lines = stdOut.split("\n");
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for(QString line : lines) {
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this->logger->log(line, LinboLogger::StdErr);
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}
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}
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LinboBackend::LinboState LinboBackend::getState() {
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return this->state;
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}
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void LinboBackend::setState(LinboState state) {
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if(this->state == state)
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return;
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this->state = state;
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emit this->stateChanged(this->state);
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}
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// Return true unless beginning of new section '[' is found.
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bool LinboBackend::read_pair(ifstream* input, QString& key, QString& value) {
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char line[1024];
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if(input->peek() == '[') return false; // Next section found.
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input->getline(line,1024,'\n');
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QString s = QString::fromAscii( line, -1 ).stripWhiteSpace();
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key = s.section("=",0,0).stripWhiteSpace().lower();
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if(s.startsWith("#")||key.isEmpty()) {
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key = QString(""); value = QString("");
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} else {
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value=s.section("=",1).section("#",0,0).stripWhiteSpace();
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}
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return true;
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}
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bool LinboBackend::toBool(const QString& value) {
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if(value.startsWith("yes",false)) return true;
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if(value.startsWith("true",false)) return true;
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if(value.startsWith("enable",false)) return true;
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return false;
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}
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LinboOs* LinboBackend::read_os(ifstream* input) {
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LinboOs* os = new LinboOs(this);
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QString key, value;
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while(!input->eof() && read_pair(input, key, value)) {
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if(key.compare("name") == 0) os->setName(value);
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else if(key.compare("description") == 0) os->setDescription(value);
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else if(key.compare("version") == 0) os->setVersion(value);
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else if(key.compare("iconname") == 0) os->setIconName(value);
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else if(key.compare("image") == 0) os->setDifferentialImage(new LinboImage(value, os));
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else if(key.compare("baseimage") == 0) os->setBaseImage(new LinboImage(value, os));
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else if(key.compare("boot") == 0) os->setBootPartition(value);
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else if(key.compare("root") == 0) os->setRootPartition(value);
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else if(key.compare("kernel") == 0) os->setKernel(value);
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else if(key.compare("initrd") == 0) os->setInitrd(value);
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else if(key.compare("append") == 0) os->setKernelOptions(value);
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else if(key.compare("syncenabled") == 0) os->setSyncButton(toBool(value));
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else if(key.compare("startenabled") == 0) os->setStartButton(toBool(value));
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else if((key.compare("remotesyncenabled") == 0) || (key.compare("newenabled") == 0)) os->setNewButton(toBool(value));
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else if(key.compare("defaultaction") == 0) os->setDefaultAction(os->startActionFromString(value));
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else if(key.compare("autostart") == 0) os->setAutostart(toBool(value));
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else if(key.compare("autostarttimeout") == 0) os->setAutostartTimeout(value.toInt());
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else if(key.compare("hidden") == 0) os->setHidden(toBool(value));
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}
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return os;
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}
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LinboDiskPartition* LinboBackend::read_partition(ifstream* input) {
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LinboDiskPartition* partition = new LinboDiskPartition(this);
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QString key, value;
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while(!input->eof() && read_pair(input, key, value)) {
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if(key.compare("dev") == 0) partition->setPath(value);
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else if(key.compare("size") == 0) partition->setSize(value.toInt());
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else if(key.compare("id") == 0) partition->setId(value);
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else if(key.compare("fstype") == 0) partition->setFstype(value);
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else if(key.startsWith("bootable", false)) partition->setBootable(toBool(value));
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}
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return partition;
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}
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void LinboBackend::read_globals( ifstream* input, LinboConfig* config ) {
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QString key, value;
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while(!input->eof() && read_pair(input, key, value)) {
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if(key.compare("server") == 0) config->setServer(value);
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else if(key.compare("cache") == 0) config->setCache(value);
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else if(key.compare("roottimeout") == 0) config->setRootTimeout((unsigned int)value.toInt());
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else if(key.compare("group") == 0) config->setHostgroup(value);
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else if(key.compare("autopartition") == 0) config->setAutopartition(toBool(value));
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else if(key.compare("autoinitcache") == 0) config->setAutoInitCache(toBool(value));
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else if(key.compare("autoformat") == 0) config->setAutoFormat(toBool(value));
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else if(key.compare("backgroundfontcolor") == 0) config->setBackgroundFontcolor(value);
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else if(key.compare("consolefontcolorstdout") == 0) config->setConsoleFontcolorStdout(value);
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else if(key.compare("consolefontcolorstderr") == 0) config->setConsoleFontcolorStderr(value);
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else if(key.compare("usemulticast") == 0) {
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if( (unsigned int)value.toInt() == 0 )
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config->setDownloadType("rsync");
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else
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config->setDownloadType("multicast");
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}
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else if(key.compare("downloadtype") == 0) config->setDownloadType(value);
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}
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}
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