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#include "smbshareplugin.h"
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#include <KPluginFactory>
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#include <KLocalizedString>
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#include <QFormLayout>
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#include <QGroupBox>
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#include <QLabel>
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#include <QProcess>
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#include <QScrollArea>
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#include <QVBoxLayout>
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K_PLUGIN_CLASS_WITH_JSON(SmbSharePlugin, "smbshareplugin.json")
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// Permission levels for the combo boxes
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static const QStringList permissionLabels = {
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QStringLiteral("---"),
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QStringLiteral("Read Only"),
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QStringLiteral("Full Access"),
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QStringLiteral("Deny")
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};
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// Map combo index to net usershare ACL character
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static QString aclForIndex(int index)
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{
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switch (index) {
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case 1: return QStringLiteral("R");
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case 2: return QStringLiteral("F");
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case 3: return QStringLiteral("D");
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default: return QString();
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}
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}
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// Map ACL character back to combo index
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static int indexForAcl(const QString &acl)
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{
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if (acl == QLatin1String("R")) return 1;
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if (acl == QLatin1String("F")) return 2;
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if (acl == QLatin1String("D")) return 3;
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return 0;
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}
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// Get list of local users (UID >= 1000, excluding nobody)
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static QStringList getLocalUsers()
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{
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QStringList users;
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QFile passwd(QStringLiteral("/etc/passwd"));
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if (passwd.open(QIODevice::ReadOnly | QIODevice::Text)) {
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while (!passwd.atEnd()) {
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const QString line = QString::fromLocal8Bit(passwd.readLine()).trimmed();
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if (line.isEmpty() || line.startsWith(QLatin1Char('#')))
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continue;
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const QStringList fields = line.split(QLatin1Char(':'));
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if (fields.size() < 7)
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continue;
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const int uid = fields[2].toInt();
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const QString shell = fields[6];
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if (uid >= 1000 && uid < 65534
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&& !shell.endsWith(QLatin1String("/nologin"))
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&& !shell.endsWith(QLatin1String("/false"))) {
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users << fields[0];
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}
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}
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}
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return users;
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}
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SmbSharePlugin::SmbSharePlugin(QObject *parent, const QVariantList &args)
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: KPropertiesDialogPlugin(qobject_cast<KPropertiesDialog *>(parent))
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{
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Q_UNUSED(args)
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m_path = properties->item().localPath();
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if (m_path.isEmpty())
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return;
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// Default share name = folder name
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m_defaultShareName = m_path.section(QLatin1Char('/'), -1);
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// --- Build the UI ---
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m_page = new QWidget();
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auto *mainLayout = new QVBoxLayout(m_page);
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// Share checkbox
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m_shareCheckBox = new QCheckBox(
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i18n("Share this folder with other computers on the local network"));
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mainLayout->addWidget(m_shareCheckBox);
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// Share name
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auto *nameLayout = new QFormLayout();
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m_nameEdit = new QLineEdit(m_defaultShareName);
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nameLayout->addRow(i18n("Name:"), m_nameEdit);
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mainLayout->addLayout(nameLayout);
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// Guest access
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m_guestCheckBox = new QCheckBox(i18n("Allow Guests"));
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mainLayout->addWidget(m_guestCheckBox);
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// User permissions section
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auto *usersGroup = new QGroupBox();
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usersGroup->setFlat(true);
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auto *usersLayout = new QVBoxLayout(usersGroup);
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// Scroll area for user list
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auto *scrollArea = new QScrollArea();
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scrollArea->setWidgetResizable(true);
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scrollArea->setFrameShape(QFrame::NoFrame);
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m_usersWidget = new QWidget();
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auto *usersFormLayout = new QFormLayout(m_usersWidget);
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usersFormLayout->setContentsMargins(0, 0, 0, 0);
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// Add "Everyone" entry first
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{
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auto *combo = new QComboBox();
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combo->addItems(permissionLabels);
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combo->setCurrentIndex(1); // Default: Read Only
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usersFormLayout->addRow(QStringLiteral("Everyone"), combo);
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m_userPerms.append({QStringLiteral("Everyone"), combo});
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connect(combo, QOverload<int>::of(&QComboBox::currentIndexChanged),
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this, [this]() { setDirty(true); });
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}
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// Add local users
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const QStringList users = getLocalUsers();
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for (const QString &user : users) {
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auto *combo = new QComboBox();
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combo->addItems(permissionLabels);
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combo->setCurrentIndex(0); // Default: ---
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usersFormLayout->addRow(user, combo);
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m_userPerms.append({user, combo});
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connect(combo, QOverload<int>::of(&QComboBox::currentIndexChanged),
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this, [this]() { setDirty(true); });
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}
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scrollArea->setWidget(m_usersWidget);
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usersLayout->addWidget(scrollArea);
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mainLayout->addWidget(usersGroup);
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mainLayout->addStretch();
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// Connect signals
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connect(m_shareCheckBox, &QCheckBox::toggled,
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this, &SmbSharePlugin::onShareToggled);
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connect(m_nameEdit, &QLineEdit::textChanged,
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this, [this]() { setDirty(true); });
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connect(m_guestCheckBox, &QCheckBox::toggled,
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this, [this]() { setDirty(true); });
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// Load existing share info
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loadCurrentShare();
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// Initial UI state
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onShareToggled(m_shareCheckBox->isChecked());
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// Add the page as a tab
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properties->addPage(m_page, i18n("Share"));
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}
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void SmbSharePlugin::onShareToggled(bool checked)
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{
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m_nameEdit->setEnabled(checked);
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m_guestCheckBox->setEnabled(checked);
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m_usersWidget->setEnabled(checked);
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setDirty(true);
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}
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void SmbSharePlugin::loadCurrentShare()
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{
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// Run: net usershare info --long
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QProcess proc;
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proc.start(QStringLiteral("net"),
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{QStringLiteral("usershare"), QStringLiteral("info"),
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QStringLiteral("--long")});
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proc.waitForFinished(5000);
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const QString output = QString::fromLocal8Bit(proc.readAllStandardOutput());
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if (output.isEmpty())
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return;
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// Parse the output to find a share matching our path
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// Format:
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// [sharename]
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// path=/some/path
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// comment=
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// usershare_acl=Everyone:R,user:F
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// guest_ok=n
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QString currentSection;
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QString sharePath;
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QString shareAcl;
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QString guestOk;
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const QStringList lines = output.split(QLatin1Char('\n'));
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for (const QString &line : lines) {
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if (line.startsWith(QLatin1Char('['))) {
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// If we had a previous section that matched, break
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if (!currentSection.isEmpty() && sharePath == m_path)
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break;
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// New section
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currentSection = line.mid(1, line.indexOf(QLatin1Char(']')) - 1);
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sharePath.clear();
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shareAcl.clear();
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guestOk.clear();
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} else if (line.startsWith(QLatin1String("path="))) {
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sharePath = line.mid(5);
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} else if (line.startsWith(QLatin1String("usershare_acl="))) {
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shareAcl = line.mid(14);
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} else if (line.startsWith(QLatin1String("guest_ok="))) {
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guestOk = line.mid(9);
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}
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}
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// Check if last section matched
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if (sharePath != m_path)
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return;
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// Found an existing share!
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m_isShared = true;
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m_originalShareName = currentSection;
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m_shareCheckBox->setChecked(true);
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m_nameEdit->setText(currentSection);
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m_guestCheckBox->setChecked(guestOk == QLatin1String("y"));
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// Parse ACL: "Everyone:R,username:F"
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const QStringList aclEntries = shareAcl.split(QLatin1Char(','));
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for (const QString &entry : aclEntries) {
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const int colonPos = entry.lastIndexOf(QLatin1Char(':'));
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if (colonPos < 0)
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continue;
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const QString name = entry.left(colonPos);
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const QString perm = entry.mid(colonPos + 1);
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for (auto &up : m_userPerms) {
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if (up.username.compare(name, Qt::CaseInsensitive) == 0) {
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up.combo->setCurrentIndex(indexForAcl(perm));
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break;
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}
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}
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}
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// Reset dirty state after loading
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setDirty(false);
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}
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void SmbSharePlugin::applyChanges()
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{
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const bool wantShared = m_shareCheckBox->isChecked();
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const QString shareName = m_nameEdit->text().trimmed();
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// If unchecked and was previously shared, delete the share
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if (!wantShared && m_isShared) {
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QProcess proc;
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proc.start(QStringLiteral("net"),
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{QStringLiteral("usershare"), QStringLiteral("delete"),
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m_originalShareName});
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proc.waitForFinished(5000);
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m_isShared = false;
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m_originalShareName.clear();
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return;
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}
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if (!wantShared)
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return;
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// If name changed, delete old share first
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if (m_isShared && !m_originalShareName.isEmpty()
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&& m_originalShareName != shareName) {
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QProcess proc;
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proc.start(QStringLiteral("net"),
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{QStringLiteral("usershare"), QStringLiteral("delete"),
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m_originalShareName});
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proc.waitForFinished(5000);
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}
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// Build ACL string
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QStringList aclParts;
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for (const auto &up : m_userPerms) {
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const QString acl = aclForIndex(up.combo->currentIndex());
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if (!acl.isEmpty()) {
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aclParts << up.username + QLatin1Char(':') + acl;
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}
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}
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// Default ACL if nothing selected
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if (aclParts.isEmpty()) {
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aclParts << QStringLiteral("Everyone:R");
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}
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const QString aclString = aclParts.join(QLatin1Char(','));
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const QString guestOk = m_guestCheckBox->isChecked()
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? QStringLiteral("guest_ok=y")
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: QStringLiteral("guest_ok=n");
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// net usershare add <name> <path> <comment> <acl> <guest_ok>
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QProcess proc;
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proc.start(QStringLiteral("net"),
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{QStringLiteral("usershare"), QStringLiteral("add"),
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shareName, m_path, QString(), aclString, guestOk});
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proc.waitForFinished(5000);
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if (proc.exitCode() == 0) {
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m_isShared = true;
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m_originalShareName = shareName;
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}
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}
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#include "smbshareplugin.moc"
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Stefan Hacker