Add configurable ban options for WebUI

src/base/preferences.cpp

@@ -29,6 +29,8 @@
 
 #include "preferences.h"
 
+#include <chrono>
+
 #ifdef Q_OS_MACOS
 #include <CoreServices/CoreServices.h>
 #endif
@@ -621,6 +623,26 @@ void Preferences::setWebUIPassword(const QByteArray &password)
     setValue("Preferences/WebUI/Password_PBKDF2", password);
 }
 
+int Preferences::getWebUIMaxAuthFailCount() const
+{
+    return value("Preferences/WebUI/MaxAuthenticationFailCount", 5).toInt();
+}
+
+void Preferences::setWebUIMaxAuthFailCount(const int count)
+{
+    setValue("Preferences/WebUI/MaxAuthenticationFailCount", count);
+}
+
+std::chrono::seconds Preferences::getWebUIBanDuration() const
+{
+    return std::chrono::seconds {value("Preferences/WebUI/BanDuration", 3600).toInt()};
+}
+
+void Preferences::setWebUIBanDuration(const std::chrono::seconds duration)
+{
+    setValue("Preferences/WebUI/BanDuration", static_cast<int>(duration.count()));
+}
+
 int Preferences::getWebUISessionTimeout() const
 {
     return value("Preferences/WebUI/SessionTimeout", 3600).toInt();

src/base/preferences.h

@@ -194,6 +194,10 @@ class Preferences : public QObject
     void setWebUiUsername(const QString &username);
     QByteArray getWebUIPassword() const;
     void setWebUIPassword(const QByteArray &password);
+    int getWebUIMaxAuthFailCount() const;
+    void setWebUIMaxAuthFailCount(int count);
+    std::chrono::seconds getWebUIBanDuration() const;
+    void setWebUIBanDuration(std::chrono::seconds duration);
     int getWebUISessionTimeout() const;
     void setWebUISessionTimeout(int timeout);
 

src/gui/optionsdialog.cpp

@@ -421,6 +421,8 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     connect(m_ui->checkBypassLocalAuth, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkBypassAuthSubnetWhitelist, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkBypassAuthSubnetWhitelist, &QAbstractButton::toggled, m_ui->IPSubnetWhitelistButton, &QPushButton::setEnabled);
+    connect(m_ui->spinBanCounter, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
+    connect(m_ui->spinBanDuration, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->spinSessionTimeout, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->checkClickjacking, &QCheckBox::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkCSRFProtection, &QCheckBox::toggled, this, &ThisType::enableApplyButton);
@@ -770,6 +772,8 @@ void OptionsDialog::saveOptions()
         pref->setWebUiHttpsEnabled(m_ui->checkWebUiHttps->isChecked());
         pref->setWebUIHttpsCertificatePath(m_ui->textWebUIHttpsCert->selectedPath());
         pref->setWebUIHttpsKeyPath(m_ui->textWebUIHttpsKey->selectedPath());
+        pref->setWebUIMaxAuthFailCount(m_ui->spinBanCounter->value());
+        pref->setWebUIBanDuration(std::chrono::seconds {m_ui->spinBanDuration->value()});
         pref->setWebUISessionTimeout(m_ui->spinSessionTimeout->value());
         // Authentication
         pref->setWebUiUsername(webUiUsername());
@@ -1153,6 +1157,8 @@ void OptionsDialog::loadOptions()
     m_ui->checkBypassLocalAuth->setChecked(!pref->isWebUiLocalAuthEnabled());
     m_ui->checkBypassAuthSubnetWhitelist->setChecked(pref->isWebUiAuthSubnetWhitelistEnabled());
     m_ui->IPSubnetWhitelistButton->setEnabled(m_ui->checkBypassAuthSubnetWhitelist->isChecked());
+    m_ui->spinBanCounter->setValue(pref->getWebUIMaxAuthFailCount());
+    m_ui->spinBanDuration->setValue(pref->getWebUIBanDuration().count());
     m_ui->spinSessionTimeout->setValue(pref->getWebUISessionTimeout());
 
     // Security

src/gui/optionsdialog.ui

@@ -2986,6 +2986,63 @@ Specify an IPv4 or IPv6 address. You can specify "0.0.0.0" for any IPv
                     </property>
                    </widget>
                   </item>
+                  <item>
+                   <layout class="QGridLayout" name="gridLayout_10">
+                    <item row="0" column="0">
+                     <widget class="QLabel" name="lblBanCounter">
+                      <property name="text">
+                       <string>Ban client after consecutive failures:</string>
+                      </property>
+                     </widget>
+                    </item>
+                    <item row="0" column="2">
+                     <spacer name="horizontalSpacer_15">
+                      <property name="orientation">
+                       <enum>Qt::Horizontal</enum>
+                      </property>
+                      <property name="sizeHint" stdset="0">
+                       <size>
+                        <width>40</width>
+                        <height>20</height>
+                       </size>
+                      </property>
+                     </spacer>
+                    </item>
+                    <item row="0" column="1">
+                     <widget class="QSpinBox" name="spinBanCounter">
+                      <property name="specialValueText">
+                       <string>Never</string>
+                      </property>
+                      <property name="maximum">
+                       <number>2147483647</number>
+                      </property>
+                     </widget>
+                    </item>
+                    <item row="1" column="0">
+                     <widget class="QLabel" name="lblBanDuration">
+                      <property name="text">
+                       <string>ban for:</string>
+                      </property>
+                      <property name="alignment">
+                       <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                      </property>
+                     </widget>
+                    </item>
+                    <item row="1" column="1">
+                     <widget class="QSpinBox" name="spinBanDuration">
+                      <property name="suffix">
+                       <string> sec</string>
+                      </property>
+                      <property name="minimum">
+                       <number>1</number>
+                      </property>
+                      <property name="maximum">
+                       <number>2147483647</number>
+                      </property>
+                     </widget>
+                    </item>
+                   </layout>
+                  </item>
                   <item>
                    <layout class="QHBoxLayout" name="horizontalLayout_13">
                     <item>

src/webui/api/appcontroller.cpp

@@ -232,6 +232,8 @@ void AppController::preferencesAction()
     for (const Utils::Net::Subnet &subnet : asConst(pref->getWebUiAuthSubnetWhitelist()))
         authSubnetWhitelistStringList << Utils::Net::subnetToString(subnet);
     data["bypass_auth_subnet_whitelist"] = authSubnetWhitelistStringList.join("\n");
+    data["web_ui_max_auth_fail_count"] = pref->getWebUIMaxAuthFailCount();
+    data["web_ui_ban_duration"] = static_cast<int>(pref->getWebUIBanDuration().count());
     data["web_ui_session_timeout"] = pref->getWebUISessionTimeout();
     // Use alternative Web UI
     data["alternative_webui_enabled"] = pref->isAltWebUiEnabled();
@@ -601,6 +603,10 @@ void AppController::setPreferencesAction()
         // recognize new lines and commas as delimiters
         pref->setWebUiAuthSubnetWhitelist(it.value().toString().split(QRegularExpression("\n|,"), QString::SkipEmptyParts));
     }
+    if (hasKey("web_ui_max_auth_fail_count"))
+        pref->setWebUIMaxAuthFailCount(it.value().toInt());
+    if (hasKey("web_ui_ban_duration"))
+        pref->setWebUIBanDuration(std::chrono::seconds {it.value().toInt()});
     if (hasKey("web_ui_session_timeout"))
         pref->setWebUISessionTimeout(it.value().toInt());
     // Use alternative Web UI

src/webui/api/authcontroller.cpp

@@ -28,7 +28,6 @@
 
 #include "authcontroller.h"
 
-#include <QDateTime>
 #include <QString>
 
 #include "base/logger.h"
@@ -37,9 +36,6 @@
 #include "apierror.h"
 #include "isessionmanager.h"
 
-constexpr int BAN_TIME = 3600000; // 1 hour
-constexpr int MAX_AUTH_FAILED_ATTEMPTS = 5;
-
 void AuthController::loginAction()
 {
     if (sessionManager()->session()) {
@@ -74,27 +70,29 @@ void AuthController::loginAction()
         LogMsg(tr("WebAPI login success. IP: %1").arg(clientAddr));
     }
     else {
-        increaseFailedAttempts();
+        if (Preferences::instance()->getWebUIMaxAuthFailCount() > 0)
+            increaseFailedAttempts();
         setResult(QLatin1String("Fails."));
         LogMsg(tr("WebAPI login failure. Reason: invalid credentials, attempt count: %1, IP: %2, username: %3")
                 .arg(QString::number(failedAttemptsCount()), clientAddr, usernameFromWeb)
             , Log::WARNING);
     }
 }
 
-void AuthController::logoutAction()
+void AuthController::logoutAction() const
 {
     sessionManager()->sessionEnd();
 }
 
 bool AuthController::isBanned() const
 {
-    const qint64 now = QDateTime::currentMSecsSinceEpoch() / 1000;
-    const FailedLogin failedLogin = m_clientFailedLogins.value(sessionManager()->clientId());
+    const auto failedLoginIter = m_clientFailedLogins.find(sessionManager()->clientId());
+    if (failedLoginIter == m_clientFailedLogins.end())
+        return false;
 
-    bool isBanned = (failedLogin.bannedAt > 0);
-    if (isBanned && ((now - failedLogin.bannedAt) > BAN_TIME)) {
-        m_clientFailedLogins.remove(sessionManager()->clientId());
+    bool isBanned = (failedLoginIter->banTimer.remainingTime() >= 0);
+    if (isBanned && failedLoginIter->banTimer.hasExpired()) {
+        m_clientFailedLogins.erase(failedLoginIter);
         isBanned = false;
     }
 
@@ -108,12 +106,14 @@ int AuthController::failedAttemptsCount() const
 
 void AuthController::increaseFailedAttempts()
 {
+    Q_ASSERT(Preferences::instance()->getWebUIMaxAuthFailCount() > 0);
+
     FailedLogin &failedLogin = m_clientFailedLogins[sessionManager()->clientId()];
     ++failedLogin.failedAttemptsCount;
 
-    if (failedLogin.failedAttemptsCount == MAX_AUTH_FAILED_ATTEMPTS) {
+    if (failedLogin.failedAttemptsCount >= Preferences::instance()->getWebUIMaxAuthFailCount()) {
         // Max number of failed attempts reached
         // Start ban period
-        failedLogin.bannedAt = QDateTime::currentMSecsSinceEpoch() / 1000;
+        failedLogin.banTimer.setRemainingTime(Preferences::instance()->getWebUIBanDuration());
     }
 }

src/webui/api/authcontroller.h

@@ -28,6 +28,7 @@
 
 #pragma once
 
+#include <QDeadlineTimer>
 #include <QHash>
 
 #include "apicontroller.h"
@@ -44,7 +45,7 @@ class AuthController : public APIController
 
 private slots:
     void loginAction();
-    void logoutAction();
+    void logoutAction() const;
 
 private:
     bool isBanned() const;
@@ -54,7 +55,7 @@ private slots:
     struct FailedLogin
     {
         int failedAttemptsCount = 0;
-        qint64 bannedAt = 0;
+        QDeadlineTimer banTimer {-1};
     };
     mutable QHash<QString, FailedLogin> m_clientFailedLogins;
 };

src/webui/www/private/views/preferences.html

@@ -562,28 +562,27 @@
                 <td>
                     <input type="text" id="max_ratio_value" style="width: 4em;" />
                 </td>
-                <tr>
-                    <td>
-                        <input type="checkbox" id="max_seeding_time_checkbox" onclick="qBittorrent.Preferences.updateMaxRatioTimeEnabled();" />
-                        <label for="max_seeding_time_checkbox">QBT_TR(When seeding time reaches)QBT_TR[CONTEXT=OptionsDialog]</label>
-                    </td>
-                    <td>
-                        <input type="text" id="max_seeding_time_value" style="width: 4em;" /> QBT_TR(minutes)QBT_TR[CONTEXT=OptionsDialog]
-                    </td>
-                </tr>
-                <tr>
-                    <td style="text-align: right;">
-                        QBT_TR(then)QBT_TR[CONTEXT=OptionsDialog]
-                    </td>
-                    <td>
-                        <select id="max_ratio_act">
-                            <option value="0">QBT_TR(Pause torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
-                            <option value="1">QBT_TR(Remove torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
-                            <option value="3">QBT_TR(Remove torrent and its files)QBT_TR[CONTEXT=OptionsDialog]</option>
-                            <option value="2">QBT_TR(Enable super seeding for torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
-                        </select>
-                    </td>
-                </tr>
+            </tr>
+            <tr>
+                <td>
+                    <label for="max_seeding_time_checkbox">QBT_TR(When seeding time reaches)QBT_TR[CONTEXT=OptionsDialog]</label>
+                    <input type="checkbox" id="max_seeding_time_checkbox" onclick="qBittorrent.Preferences.updateMaxRatioTimeEnabled();" />
+                </td>
+                <td>
+                    <input type="text" id="max_seeding_time_value" style="width: 4em;" />QBT_TR(minutes)QBT_TR[CONTEXT=OptionsDialog]
+                </td>
+            </tr>
+            <tr>
+                <td style="text-align: right;"><label for="max_ratio_act">QBT_TR(then)QBT_TR[CONTEXT=OptionsDialog]</label></td>
+                <td>
+                    <select id="max_ratio_act">
+                        <option value="0">QBT_TR(Pause torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
+                        <option value="1">QBT_TR(Remove torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
+                        <option value="3">QBT_TR(Remove torrent and its files)QBT_TR[CONTEXT=OptionsDialog]</option>
+                        <option value="2">QBT_TR(Enable super seeding for torrent)QBT_TR[CONTEXT=OptionsDialog]</option>
+                    </select>
+                </td>
+            </tr>
         </table>
     </fieldset>
 
@@ -729,10 +728,20 @@
             <div class="formRow" style="padding-left: 30px; padding-top: 5px;">
                 <textarea id="bypass_auth_subnet_whitelist_textarea" rows="5" cols="48" placeholder="Example: 172.17.32.0/24, fdff:ffff:c8::/40"></textarea>
             </div>
+            <table>
+                <tr>
+                    <td><label for="webUIMaxAuthFailCountInput">QBT_TR(Ban client after consecutive failures:)QBT_TR[CONTEXT=OptionsDialog]</label></td>
+                    <td><input type="number" id="webUIMaxAuthFailCountInput" style="width: 4em;" min="0" /></td>
+                </tr>
+                <tr>
+                    <td style="text-align: right;"><label for="webUIBanDurationInput">QBT_TR(ban for:)QBT_TR[CONTEXT=OptionsDialog]</label></td>
+                    <td><input type="number" id="webUIBanDurationInput" style="width: 4em;" min="1" />QBT_TR(seconds)QBT_TR[CONTEXT=OptionsDialog]</td>
+                </tr>
+            </table>
             <table>
                 <tr>
                     <td><label for="webUISessionTimeoutInput">QBT_TR(Session timeout:)QBT_TR[CONTEXT=OptionsDialog]</label></td>
-                    <td><input type="number" id="webUISessionTimeoutInput" style="width: 4em;" min="0" />&nbsp;&nbsp;QBT_TR(sec)QBT_TR[CONTEXT=OptionsDialog]</td>
+                    <td><input type="number" id="webUISessionTimeoutInput" style="width: 4em;" min="0" />&nbsp;&nbsp;QBT_TR(seconds)QBT_TR[CONTEXT=OptionsDialog]</td>
                 </tr>
             </table>
         </fieldset>
@@ -1719,6 +1728,8 @@
                         $('bypass_auth_subnet_whitelist_checkbox').setProperty('checked', pref.bypass_auth_subnet_whitelist_enabled);
                         $('bypass_auth_subnet_whitelist_textarea').setProperty('value', pref.bypass_auth_subnet_whitelist);
                         updateBypasssAuthSettings();
+                        $('webUIMaxAuthFailCountInput').setProperty('value', pref.web_ui_max_auth_fail_count.toInt());
+                        $('webUIBanDurationInput').setProperty('value', pref.web_ui_ban_duration.toInt());
                         $('webUISessionTimeoutInput').setProperty('value', pref.web_ui_session_timeout.toInt());
 
                         // Use alternative Web UI
@@ -2082,6 +2093,8 @@
             settings.set('bypass_local_auth', $('bypass_local_auth_checkbox').getProperty('checked'));
             settings.set('bypass_auth_subnet_whitelist_enabled', $('bypass_auth_subnet_whitelist_checkbox').getProperty('checked'));
             settings.set('bypass_auth_subnet_whitelist', $('bypass_auth_subnet_whitelist_textarea').getProperty('value'));
+            settings.set('web_ui_max_auth_fail_count', $('webUIMaxAuthFailCountInput').getProperty('value'));
+            settings.set('web_ui_ban_duration', $('webUIBanDurationInput').getProperty('value'));
             settings.set('web_ui_session_timeout', $('webUISessionTimeoutInput').getProperty('value'));
 
             // Use alternative Web UI