Inform the user if the current user doesn't belong to the vitamtp group.

Updated translations.

src/cli/headlessmanager.cpp

@@ -92,6 +92,10 @@ void HeadlessManager::start()
     QSettings settings;
 
     if(!settings.value("disableUSB", false).toBool()) {
+
+        if(!belongsToGroup("vitamtp"))
+            qCritical() << tr("This user doesn't belong to the vitamtp group, there could be a problem while reading the USB bus.");
+
         usb_thread = new QThread();
         client = new CmaClient(m_db);
         usb_thread->setObjectName("usb_thread");

src/cli/main_cli.cpp

@@ -36,15 +36,27 @@
 #include "headlessmanager.h"
 
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
-static void noMessageOutput(QtMsgType type, const QMessageLogContext &, const QString & str)
+static void noDebugOutput(QtMsgType type, const QMessageLogContext &, const QString & msg)
 {
-    const char * msg = str.toStdString().c_str();
+    QByteArray localMsg = msg.toLocal8Bit();
+    const char *message = localMsg.constData();
 #else
-static void noMessageOutput(QtMsgType type, const char *msg)
+static void noDebugOutput(QtMsgType type, const char *message)
 {
 #endif
-    Q_UNUSED(type);
-    Q_UNUSED(msg);
+    switch (type) {
+    case QtDebugMsg:
+        break;
+    case QtWarningMsg:
+        fprintf(stderr, "Warning: %s\n", message);
+        break;
+    case QtCriticalMsg:
+        fprintf(stderr, "Critical: %s\n", message);
+        break;
+    case QtFatalMsg:
+        fprintf(stderr, "Fatal: %s\n", message);
+        abort();
+    }
 }
 
 static bool setup_handlers()
@@ -102,9 +114,9 @@ int main(int argc, char *argv[])
     } else {
         VitaMTP_Set_Logging(VitaMTP_NONE);
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
-        qInstallMessageHandler(noMessageOutput);
+        qInstallMessageHandler(noDebugOutput);
 #else
-        qInstallMsgHandler(noMessageOutput);
+        qInstallMsgHandler(noDebugOutput);
 #endif
     }
 

src/cmautils.cpp

@@ -35,6 +35,13 @@
 #include <sys/statvfs.h>
 #endif
 
+#ifdef Q_OS_LINUX
+#include <sys/types.h>
+#include <grp.h>
+#include <pwd.h>
+#include <unistd.h>
+#endif
+
 bool getDiskSpace(const QString &dir, quint64 *free, quint64 *total)
 {
 #ifdef Q_OS_WIN32
@@ -249,3 +256,50 @@ int getVitaProtocolVersion()
 
     return protocol;
 }
+
+#ifdef Q_OS_LINUX
+bool belongsToGroup(const char *groupname)
+{
+    int size_max = sysconf(_SC_GETGR_R_SIZE_MAX);
+
+    if(size_max == -1)
+        size_max = 1024;
+
+    QByteArray buf(size_max, Qt::Uninitialized);
+
+    group *result = NULL;
+    group entry;
+
+    getgrnam_r(groupname, &entry, buf.data(), buf.size(), &result);
+
+    if(result != NULL && *result->gr_mem != NULL) {
+        char **user_list = result->gr_mem;
+
+        int user_size_max = sysconf(_SC_GETPW_R_SIZE_MAX);
+
+        if(user_size_max == -1)
+            user_size_max = 1024;
+
+        std::vector<char> user_buf(user_size_max);
+
+        uid_t user_id = getuid();
+
+        while(*user_list != NULL) {
+            char *user_name = *user_list;
+
+            passwd *pw = NULL;
+            passwd entry;
+
+            getpwnam_r(user_name, &entry, user_buf.data(), user_buf.size(), &pw);
+
+            if(pw != NULL && pw->pw_uid == user_id) {
+                return true;
+            }
+
+            user_list++;
+        }
+    }
+
+    return false;
+}
+#endif

src/cmautils.h

@@ -51,4 +51,9 @@ bool getDiskSpace(const QString &dir, quint64 *free, quint64 *total);
 QByteArray getThumbnail(const QString &path, DataType type, metadata_t *metadata);
 int getVitaProtocolVersion();
 
+#ifdef Q_OS_LINUX
+bool belongsToGroup(const char *groupname);
+#endif
+
+
 #endif // UTILS_H

src/gui/clientmanager.cpp

@@ -95,6 +95,12 @@ void ClientManager::start()
     QSettings settings;
 
     if(!settings.value("disableUSB", false).toBool()) {
+
+#ifdef Q_OS_LINUX
+        if(!belongsToGroup("vitamtp"))
+            emit messageSent(tr("This user doesn't belong to the vitamtp group, there could be a problem while reading the USB bus."));
+#endif
+
         usb_thread = new QThread();
         client = new CmaClient(m_db);
         usb_thread->setObjectName("usb_thread");