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ssudeviceinfo.cpp
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ssudeviceinfo.cpp
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/**
* @file ssudeviceinfo.cpp
* @copyright 2013 2013 Jolla Ltd.
* @author Bernd Wachter <bwachter@lart.info>
* @date 2013
*/
#include <QTextStream>
#include <QDir>
#include <QDBusMessage>
#include <QDBusConnection>
#include <QDBusArgument>
#include <sys/utsname.h>
#include "sandbox_p.h"
#include "ssudeviceinfo.h"
#include "ssucoreconfig_p.h"
#include "ssulog_p.h"
#include "ssuvariables_p.h"
#include "../constants.h"
SsuDeviceInfo::SsuDeviceInfo(QString model): QObject()
{
boardMappings = new SsuSettings(SSU_BOARD_MAPPING_CONFIGURATION, SSU_BOARD_MAPPING_CONFIGURATION_DIR);
if (!model.isEmpty())
cachedModel = model;
}
QStringList SsuDeviceInfo::adaptationRepos()
{
QStringList result;
QString model = deviceVariant(true);
if (boardMappings->contains(model + "/adaptation-repos"))
result = boardMappings->value(model + "/adaptation-repos").toStringList();
return result;
}
QString SsuDeviceInfo::adaptationVariables(const QString &adaptationName, QHash<QString, QString> *storageHash)
{
SsuLog *ssuLog = SsuLog::instance();
QStringList adaptationRepoList = adaptationRepos();
// special handling for adaptation-repositories
// - check if repo is in right format (adaptation\d*)
// - check if the configuration has that many adaptation repos
// - export the entry in the adaptation list as %(adaptation)
// - look up variables for that adaptation, and export matching
// adaptation variable
QRegExp regex("adaptation\\\d*", Qt::CaseSensitive, QRegExp::RegExp2);
if (regex.exactMatch(adaptationName)) {
regex.setPattern("\\\d*");
regex.lastIndexIn(adaptationName);
int n = regex.cap().toInt();
if (!adaptationRepoList.isEmpty()) {
if (adaptationRepoList.size() <= n) {
ssuLog->print(LOG_INFO, "Note: repo index out of bounds, substituting 0" + adaptationName);
n = 0;
}
QString adaptationRepo = adaptationRepoList.at(n);
storageHash->insert("adaptation", adaptationRepo);
ssuLog->print(LOG_DEBUG, "Found first adaptation " + adaptationName);
QString model = deviceVariant(true);
QHash<QString, QString> h;
// add global variables for this model
if (boardMappings->contains(model + "/variables")) {
QStringList sections = boardMappings->value(model + "/variables").toStringList();
foreach (const QString §ion, sections)
variableSection(section, &h);
}
// override with variables specific to this repository
variableSection(adaptationRepo, &h);
QHash<QString, QString>::const_iterator i = h.constBegin();
while (i != h.constEnd()) {
storageHash->insert(i.key(), i.value());
i++;
}
} else
ssuLog->print(LOG_INFO, "Note: adaptation repo for invalid repo requested " + adaptationName);
return "adaptation";
}
return adaptationName;
}
void SsuDeviceInfo::clearCache()
{
cachedFamily = "";
cachedModel = "";
cachedVariant = "";
}
bool SsuDeviceInfo::contains(const QString &model)
{
QString oldModel = deviceModel();
bool found = false;
if (!model.isEmpty()) {
clearCache();
setDeviceModel(model);
}
if (!deviceVariant(false).isEmpty())
found = true;
if (boardMappings->childGroups().contains(deviceModel()))
found = true;
if (!model.isEmpty()) {
clearCache();
setDeviceModel(oldModel);
}
return found;
}
QString SsuDeviceInfo::deviceFamily()
{
if (!cachedFamily.isEmpty())
return cachedFamily;
QString model = deviceVariant(true);
cachedFamily = "UNKNOWN";
if (boardMappings->contains(model + "/family"))
cachedFamily = boardMappings->value(model + "/family").toString();
return cachedFamily;
}
QString SsuDeviceInfo::deviceVariant(bool fallback)
{
if (!cachedVariant.isEmpty())
return cachedVariant;
cachedVariant = "";
if (boardMappings->contains("variants/" + deviceModel())) {
cachedVariant = boardMappings->value("variants/" + deviceModel()).toString();
}
if (cachedVariant == "" && fallback)
return deviceModel();
return cachedVariant;
}
QString SsuDeviceInfo::deviceModel()
{
QDir dir;
QFile procCpuinfo;
QStringList keys;
if (!cachedModel.isEmpty())
return cachedModel;
boardMappings->beginGroup("file.exists");
keys = boardMappings->allKeys();
// check if the device can be identified by testing for a file
foreach (const QString &key, keys) {
QString value = boardMappings->value(key).toString();
if (dir.exists(Sandbox::map(value))) {
cachedModel = key;
break;
}
}
boardMappings->endGroup();
if (!cachedModel.isEmpty()) return cachedModel;
// check if the device can be identified by a string in /proc/cpuinfo
procCpuinfo.setFileName(Sandbox::map("/proc/cpuinfo"));
procCpuinfo.open(QIODevice::ReadOnly | QIODevice::Text);
if (procCpuinfo.isOpen()) {
QTextStream in(&procCpuinfo);
QString cpuinfo = in.readAll();
boardMappings->beginGroup("cpuinfo.contains");
keys = boardMappings->allKeys();
foreach (const QString &key, keys) {
QString value = boardMappings->value(key).toString();
if (cpuinfo.contains(value)) {
cachedModel = key;
break;
}
}
boardMappings->endGroup();
}
if (!cachedModel.isEmpty()) return cachedModel;
// mer-hybris adaptations: /etc/hw-release MER_HA_DEVICE variable
QString hwReleaseDevice = hwRelease()["MER_HA_DEVICE"];
if (!hwReleaseDevice.isEmpty()) {
boardMappings->beginGroup("hwrelease.device");
keys = boardMappings->allKeys();
foreach (const QString &key, keys) {
QString value = boardMappings->value(key).toString();
if (hwReleaseDevice == value) {
cachedModel = key;
break;
}
}
boardMappings->endGroup();
}
if (!cachedModel.isEmpty()) return cachedModel;
// check if the device can be identified by the kernel version string
struct utsname buf;
if (!uname(&buf)) {
QString utsRelease(buf.release);
boardMappings->beginGroup("uname-release.contains");
keys = boardMappings->allKeys();
foreach (const QString &key, keys) {
QString value = boardMappings->value(key).toString();
if (utsRelease.contains(value)) {
cachedModel = key;
break;
}
}
boardMappings->endGroup();
}
if (!cachedModel.isEmpty()) return cachedModel;
// check if there's a match on arch of generic fallback. This probably
// only makes sense for x86
boardMappings->beginGroup("arch.equals");
keys = boardMappings->allKeys();
SsuCoreConfig *settings = SsuCoreConfig::instance();
foreach (const QString &key, keys) {
QString value = boardMappings->value(key).toString();
if (settings->value("arch").toString() == value) {
cachedModel = key;
break;
}
}
boardMappings->endGroup();
if (cachedModel.isEmpty()) cachedModel = "UNKNOWN";
return cachedModel;
}
static QStringList
ofonoGetImeis()
{
QStringList result;
QDBusMessage reply = QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall("org.ofono", "/",
"org.nemomobile.ofono.ModemManager", "GetIMEI"));
QList<QVariant> arguments = reply.arguments();
if (arguments.count() > 0) {
result = arguments.at(0).toStringList();
}
return result;
}
static QStringList
getWlanMacs()
{
// Based on QtSystems' qnetworkinfo_linux.cpp
QStringList result;
QStringList dirs = QDir(QLatin1String("/sys/class/net/"))
.entryList(QStringList() << QLatin1String("wlan*"));
foreach (const QString &dir, dirs) {
QFile carrier(QString("/sys/class/net/%1/address").arg(dir));
if (carrier.open(QIODevice::ReadOnly)) {
result.append(QString::fromLatin1(carrier.readAll().simplified().data()));
}
}
return result;
}
static QString
normalizeUid(const QString &uid)
{
// Normalize by stripping colons, dashes and making it lowercase
return uid.trimmed().replace(":", "").replace("-", "").toLower();
}
QString SsuDeviceInfo::deviceUid()
{
SsuLog *ssuLog = SsuLog::instance();
QStringList imeis = ofonoGetImeis();
if (imeis.size() > 0) {
return imeis[0];
}
QStringList wlanMacs = getWlanMacs();
if (wlanMacs.size() > 0) {
return normalizeUid(wlanMacs[0]);
}
ssuLog->print(LOG_WARNING, "Could not get IMEI(s) from ofono, nor WLAN mac, trying fallback");
// The fallback list is taken from QtSystems' qdeviceinfo_linux.cpp
QStringList fallbackFiles;
fallbackFiles << "/sys/devices/virtual/dmi/id/product_uuid";
fallbackFiles << "/etc/machine-id";
fallbackFiles << "/etc/unique-id";
fallbackFiles << "/var/lib/dbus/machine-id";
foreach (const QString &filename, fallbackFiles) {
QFile machineId(filename);
if (machineId.open(QFile::ReadOnly | QFile::Text)) {
QTextStream in(&machineId);
return normalizeUid(in.readAll());
}
}
ssuLog->print(LOG_CRIT, "Could not read fallback UID - returning empty string");
return "";
}
QStringList SsuDeviceInfo::disabledRepos()
{
QStringList result;
QString model = deviceVariant(true);
if (boardMappings->contains(model + "/disabled-repos"))
result = boardMappings->value(model + "/disabled-repos").toStringList();
return result;
}
QString SsuDeviceInfo::displayName(const int type)
{
QString model = deviceModel();
QString variant = deviceVariant(false);
QString value, key;
switch (type) {
case Ssu::DeviceManufacturer:
key = "/deviceManufacturer";
break;
case Ssu::DeviceModel:
key = "/prettyModel";
break;
case Ssu::DeviceDesignation:
key = "/deviceDesignation";
break;
default:
return "";
}
/*
* Go through different levels of fallbacks:
* 1. model specific setting
* 2. variant specific setting
* 3. global setting
* 4. return model name, or "UNKNOWN" in case query was for manufacturer
*/
if (boardMappings->contains(model + key))
value = boardMappings->value(model + key).toString();
else if (variant != "" && boardMappings->contains(variant + key))
value = boardMappings->value(variant + key).toString();
else if (boardMappings->contains(key))
value = boardMappings->value(key).toString();
else if (type != Ssu::DeviceManufacturer)
value = model;
else
value = "UNKNOWN";
return value;
}
// this half belongs into repo-manager, as it not only handles board-specific
// repositories. Right now this one looks like the better place due to the
// connection to board specific stuff, though
QStringList SsuDeviceInfo::repos(bool rnd, int filter)
{
int adaptationCount = adaptationRepos().size();
QStringList result;
///@TODO move this to a hash, containing repo and enabled|disabled
/// write repos with enabled/disabled to disks
/// for the compat functions providing a stringlist, do the filtering
/// run only when creating the list, based on the enabled|disabled flags
if (filter == Ssu::NoFilter ||
filter == Ssu::BoardFilter ||
filter == Ssu::BoardFilterUserBlacklist) {
// for repo names we have adaptation0, adaptation1, ..., adaptationN
for (int i = 0; i < adaptationCount; i++)
result.append(QString("adaptation%1").arg(i));
// now read the release/rnd repos
SsuSettings repoSettings(SSU_REPO_CONFIGURATION, QSettings::IniFormat);
QString repoKey = (rnd ? "default-repos/rnd" : "default-repos/release");
if (repoSettings.contains(repoKey))
result.append(repoSettings.value(repoKey).toStringList());
// TODO: add specific repos (developer, sdk, ..)
// add device configured repos
if (boardMappings->contains(deviceVariant(true) + "/repos"))
result.append(boardMappings->value(deviceVariant(true) + "/repos").toStringList());
// add device configured repos only valid for rnd and/or release
repoKey = (rnd ? "/repos-rnd" : "/repos-release");
if (boardMappings->contains(deviceVariant(true) + repoKey))
result.append(boardMappings->value(deviceVariant(true) + repoKey).toStringList());
// read the disabled repositories for this device
// user can override repositories disabled here in the user configuration
foreach (const QString &key, disabledRepos())
result.removeAll(key);
}
result.removeDuplicates();
return result;
}
QVariant SsuDeviceInfo::variable(QString section, const QString &key)
{
/// @todo compat-setting as ssudeviceinfo guaranteed to prepend sections with var-;
/// SsuVariables does not have this guarantee. Remove from here as well.
if (!section.startsWith("var-"))
section = "var-" + section;
return SsuVariables::variable(boardMappings, section, key);
}
void SsuDeviceInfo::variableSection(QString section, QHash<QString, QString> *storageHash)
{
if (!section.startsWith("var-"))
section = "var-" + section;
SsuVariables::variableSection(boardMappings, section, storageHash);
}
void SsuDeviceInfo::setDeviceModel(QString model)
{
if (model == "")
cachedModel = "";
else
cachedModel = model;
cachedFamily = "";
cachedVariant = "";
}
QVariant SsuDeviceInfo::value(const QString &key, const QVariant &value)
{
if (boardMappings->contains(deviceModel() + "/" + key)) {
return boardMappings->value(deviceModel() + "/" + key);
} else if (boardMappings->contains(deviceVariant() + "/" + key)) {
return boardMappings->value(deviceVariant() + "/" + key);
}
return value;
}
QMap<QString, QString> SsuDeviceInfo::hwRelease()
{
QMap<QString, QString> result;
// Specification of the format, encoding is similar to /etc/os-release
// http://www.freedesktop.org/software/systemd/man/os-release.html
QFile hwRelease("/etc/hw-release");
if (hwRelease.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream in(&hwRelease);
// "All strings should be in UTF-8 format, and non-printable characters
// should not be used."
in.setCodec("UTF-8");
while (!in.atEnd()) {
QString line = in.readLine();
// "Lines beginning with "#" shall be ignored as comments."
if (line.startsWith('#')) {
continue;
}
QString key = line.section('=', 0, 0);
QString value = line.section('=', 1);
// Remove trailing whitespace in value
value = value.trimmed();
// POSIX.1-2001 says uppercase, digits and underscores.
//
// Bash uses "[a-zA-Z_]+[a-zA-Z0-9_]*", so we'll use that too,
// as we can safely assume that "shell-compatible variable
// assignments" means it should be compatible with bash.
//
// see http://stackoverflow.com/a/2821183
// and http://stackoverflow.com/a/2821201
if (!QRegExp("[a-zA-Z_]+[a-zA-Z0-9_]*").exactMatch(key)) {
qWarning("Invalid key in input line: '%s'", qPrintable(line));
continue;
}
// "Variable assignment values should be enclosed in double or
// single quotes if they include spaces, semicolons or other
// special characters outside of A-Z, a-z, 0-9."
if (((value.at(0) == '\'') || (value.at(0) == '"'))) {
if (value.at(0) != value.at(value.size() - 1)) {
qWarning("Quoting error in input line: '%s'", qPrintable(line));
continue;
}
// Remove the quotes
value = value.mid(1, value.size() - 2);
}
// "If double or single quotes or backslashes are to be used within
// variable assignments, they should be escaped with backslashes,
// following shell style."
value = value.replace("\\\"", "\"");
value = value.replace("\\'", "'");
value = value.replace("\\\\", "\\");
result[key] = value;
}
hwRelease.close();
}
return result;
}