Fix

Feature/error notification

README.md

@@ -80,13 +80,9 @@ Luci: Services/podkop
 # ToDo
 Этот раздел не означает задачи, которые нужно брать и делать. Это общий список хотелок. Если вы хотите помочь, пожалуйста, спросите сначала в телеграмме.
 
-- [ ] Проверка, что версия в makefile совпадает с тегом
-- [ ] Сделать галку запрещающую подкопу редачить dhcp. Допилить в исключение вместе с пустыми полями proxy и vpn
-- [x] Обработка ошибки `sing-box[9345]: FATAL[0000] start service: initialize DNS rule[2]: rule-set not found: main`. Когда не задана строка\интерфейс
-- [x] Проверка `/etc/resolv.conf` на наличие DNS-серверов
-- [x] Отслеживание интерфейса wan в sing-box
+- [ ] Сделать галку запрещающую подкопу редачить dhcp. Допилить в исключение вместе с пустыми полями proxy и vpn (нужно wiki)
 - [ ] Рестарт сервиса без рестарта dnsmasq
-- [ ] `ash: can't kill pid 9848: No such process` при обновлении и stop
+- [ ] `ash: can't kill pid 9848: No such process` при обновлении
 
 Низкий приоритет
 - [ ] Галочка, которая режет доступ к doh серверам

install.sh

@@ -42,6 +42,15 @@ main() {
         echo "Installed podkop..."
         add_tunnel
     fi
+    
+    if command -v curl &> /dev/null; then
+        check_response=$(curl -s "https://api.github.com/repos/itdoginfo/podkop/releases/latest")
+
+        if echo "$check_response" | grep -q 'API rate limit '; then
+            echo "You've reached rate limit from GitHub. Repeat in five minutes."
+            exit 1
+        fi
+    fi
 
     download_success=0
     while read -r url; do

luci-app-podkop/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=luci-app-podkop
-PKG_VERSION:=0.3.28
+PKG_VERSION:=0.3.35
 PKG_RELEASE:=1
 
 LUCI_TITLE:=LuCI podkop app

luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js

@@ -4,6 +4,7 @@
 'require ui';
 'require network';
 'require fs';
+'require uci';
 
 const STATUS_COLORS = {
     SUCCESS: '#4caf50',
@@ -11,6 +12,8 @@ const STATUS_COLORS = {
     WARNING: '#ff9800'
 };
 
+const ERROR_POLL_INTERVAL = 5000; // 5 seconds
+
 async function safeExec(command, args = [], timeout = 7000) {
     try {
         const controller = new AbortController();
@@ -41,18 +44,15 @@ function formatDiagnosticOutput(output) {
         .replace(/\r/g, '\n');
 }
 
-function getNetworkInterfaces(o, section_id) {
-    const excludeInterfaces = ['br-lan', 'eth0', 'eth1', 'wan', 'phy0-ap0', 'phy1-ap0', 'pppoe-wan'];
-
+function getNetworkInterfaces(o, section_id, excludeInterfaces = []) {
     return network.getDevices().then(devices => {
-        // Reset the options by creating a new keylist
         o.keylist = [];
         o.vallist = [];
 
         devices.forEach(device => {
             if (device.dev && device.dev.name) {
                 const deviceName = device.dev.name;
-                if (!excludeInterfaces.includes(deviceName) && !/^lan\d+$/.test(deviceName)) {
+                if (!excludeInterfaces.includes(deviceName)) {
                     o.value(deviceName, deviceName);
                 }
             }
@@ -93,20 +93,29 @@ function createConfigSection(section, map, network) {
 
         if (cfgvalue) {
             try {
-                // Extract only the active configuration (first non-comment line)
                 const activeConfig = cfgvalue.split('\n')
                     .map(line => line.trim())
                     .find(line => line && !line.startsWith('//'));
 
                 if (activeConfig) {
-                    const label = activeConfig.split('#').pop() || 'unnamed';
-                    const decodedLabel = decodeURIComponent(label);
-                    const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Current config: ') + decodedLabel);
-                    container.appendChild(descDiv);
+                    if (activeConfig.includes('#')) {
+                        const label = activeConfig.split('#').pop();
+                        if (label && label.trim()) {
+                            const decodedLabel = decodeURIComponent(label);
+                            const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Current config: ') + decodedLabel);
+                            container.appendChild(descDiv);
+                        } else {
+                            const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Config without description'));
+                            container.appendChild(descDiv);
+                        }
+                    } else {
+                        const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Config without description'));
+                        container.appendChild(descDiv);
+                    }
                 }
             } catch (e) {
                 console.error('Error parsing config label:', e);
-                const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Current config: ') + (cfgvalue.split('#').pop() || 'unnamed'));
+                const descDiv = E('div', { 'class': 'cbi-value-description' }, _('Config without description'));
                 container.appendChild(descDiv);
             }
         } else {
@@ -124,7 +133,6 @@ function createConfigSection(section, map, network) {
         }
 
         try {
-            // Get the first non-comment line as the active configuration
             const activeConfig = value.split('\n')
                 .map(line => line.trim())
                 .find(line => line && !line.startsWith('//'));
@@ -243,11 +251,17 @@ function createConfigSection(section, map, network) {
         }
     };
 
+    o = s.taboption('basic', form.Flag, 'ss_uot', _('Shadowsocks UDP over TCP'), _('Apply for SS2022'));
+    o.default = '0';
+    o.depends('mode', 'proxy');
+    o.rmempty = false;
+    o.ucisection = 'main';
+
     o = s.taboption('basic', form.ListValue, 'interface', _('Network Interface'), _('Select network interface for VPN connection'));
     o.depends('mode', 'vpn');
     o.ucisection = s.section;
     o.load = function (section_id) {
-        return getNetworkInterfaces(this, section_id).then(() => {
+        return getNetworkInterfaces(this, section_id, ['br-lan', 'eth0', 'eth1', 'wan', 'phy0-ap0', 'phy1-ap0', 'pppoe-wan']).then(() => {
             return this.super('load', section_id);
         });
     };
@@ -660,9 +674,8 @@ const createStatusPanel = (title, status, buttons) => {
 };
 
 // Update the status section creation
-let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, singbox, system, fakeipStatus, fakeipCLIStatus) {
+let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, singbox, system, fakeipStatus, fakeipCLIStatus, dnsStatus, bypassStatus, configName) {
     return E('div', { 'class': 'cbi-section' }, [
-        E('h3', {}, _('Service Status')),
         E('div', { 'class': 'table', style: 'display: flex; gap: 20px;' }, [
             // Podkop Status Panel
             createStatusPanel('Podkop Status', podkopStatus, [
@@ -693,6 +706,11 @@ let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, s
                     label: 'View Logs',
                     command: 'check_logs',
                     title: 'Podkop Logs'
+                }),
+                ButtonFactory.createModalButton({
+                    label: _('Update Lists'),
+                    command: 'list_update',
+                    title: _('Lists Update Results')
                 })
             ]),
 
@@ -712,6 +730,16 @@ let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, s
                     label: 'Check Connections',
                     command: 'check_sing_box_connections',
                     title: 'Active Connections'
+                }),
+                ButtonFactory.createModalButton({
+                    label: _('Check NFT Rules'),
+                    command: 'check_nft',
+                    title: _('NFT Rules')
+                }),
+                ButtonFactory.createModalButton({
+                    label: _('Check DNSMasq'),
+                    command: 'check_dnsmasq',
+                    title: _('DNSMasq Configuration')
                 })
             ]),
 
@@ -733,26 +761,34 @@ let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, s
                         ])
                     ])
                 ]),
-                ButtonFactory.createModalButton({
-                    label: _('Check NFT Rules'),
-                    command: 'check_nft',
-                    title: _('NFT Rules')
-                }),
-                ButtonFactory.createModalButton({
-                    label: _('Check DNSMasq'),
-                    command: 'check_dnsmasq',
-                    title: _('DNSMasq Configuration')
-                }),
-                ButtonFactory.createModalButton({
-                    label: _('Update Lists'),
-                    command: 'list_update',
-                    title: _('Lists Update Results')
-                }),
-                ButtonFactory.createModalButton({
-                    label: _('Check Router FakeIP'),
-                    command: 'check_fakeip',
-                    title: _('FakeIP Router Check')
-                })
+                E('div', { style: 'margin-bottom: 10px;' }, [
+                    E('div', { style: 'margin-bottom: 5px;' }, [
+                        E('strong', {}, _('DNS Status')),
+                        E('br'),
+                        E('span', { style: `color: ${dnsStatus.remote.color}` }, [
+                            dnsStatus.remote.state === 'available' ? '✔' : dnsStatus.remote.state === 'unavailable' ? '✘' : '!',
+                            ' ',
+                            dnsStatus.remote.message
+                        ]),
+                        E('br'),
+                        E('span', { style: `color: ${dnsStatus.local.color}` }, [
+                            dnsStatus.local.state === 'available' ? '✔' : dnsStatus.local.state === 'unavailable' ? '✘' : '!',
+                            ' ',
+                            dnsStatus.local.message
+                        ])
+                    ])
+                ]),
+                E('div', { style: 'margin-bottom: 10px;' }, [
+                    E('div', { style: 'margin-bottom: 5px;' }, [
+                        E('strong', {}, configName),
+                        E('br'),
+                        E('span', { style: `color: ${bypassStatus.color}` }, [
+                            bypassStatus.state === 'working' ? '✔' : bypassStatus.state === 'not_working' ? '✘' : '!',
+                            ' ',
+                            bypassStatus.message
+                        ])
+                    ])
+                ])
             ]),
 
             // Version Information Panel
@@ -769,6 +805,131 @@ let createStatusSection = function (podkopStatus, singboxStatus, podkop, luci, s
     ]);
 };
 
+function checkDNSAvailability() {
+    const createStatus = (state, message, color) => ({
+        state,
+        message: _(message),
+        color: STATUS_COLORS[color]
+    });
+
+    return new Promise(async (resolve) => {
+        try {
+            const dnsStatusResult = await safeExec('/usr/bin/podkop', ['check_dns_available']);
+            if (!dnsStatusResult || !dnsStatusResult.stdout) {
+                return resolve({
+                    remote: createStatus('error', 'DNS check timeout', 'WARNING'),
+                    local: createStatus('error', 'DNS check timeout', 'WARNING')
+                });
+            }
+
+            try {
+                const dnsStatus = JSON.parse(dnsStatusResult.stdout);
+
+                const remoteStatus = dnsStatus.is_available ?
+                    createStatus('available', `${dnsStatus.dns_type.toUpperCase()} (${dnsStatus.dns_server}) available`, 'SUCCESS') :
+                    createStatus('unavailable', `${dnsStatus.dns_type.toUpperCase()} (${dnsStatus.dns_server}) unavailable`, 'ERROR');
+
+                const localStatus = dnsStatus.local_dns_working ?
+                    createStatus('available', 'Router DNS working', 'SUCCESS') :
+                    createStatus('unavailable', 'Router DNS not working', 'ERROR');
+
+                return resolve({
+                    remote: remoteStatus,
+                    local: localStatus
+                });
+            } catch (parseError) {
+                return resolve({
+                    remote: createStatus('error', 'DNS check parse error', 'WARNING'),
+                    local: createStatus('error', 'DNS check parse error', 'WARNING')
+                });
+            }
+        } catch (error) {
+            return resolve({
+                remote: createStatus('error', 'DNS check error', 'WARNING'),
+                local: createStatus('error', 'DNS check error', 'WARNING')
+            });
+        }
+    });
+}
+
+async function getPodkopErrors() {
+    try {
+        const result = await safeExec('/usr/bin/podkop', ['check_logs']);
+        if (!result || !result.stdout) return [];
+
+        const logs = result.stdout.split('\n');
+        const errors = logs.filter(log =>
+            // log.includes('saved for future filters') ||
+            log.includes('[critical]')
+        );
+
+        console.log('Found errors:', errors);
+        return errors;
+    } catch (error) {
+        console.error('Error getting podkop logs:', error);
+        return [];
+    }
+}
+
+let errorPollTimer = null;
+let lastErrorsSet = new Set();
+let isInitialCheck = true;
+
+function showErrorNotification(error, isMultiple = false) {
+    const notificationContent = E('div', { 'class': 'alert-message error' }, [
+        E('pre', { 'class': 'error-log' }, error)
+    ]);
+
+    ui.addNotification(null, notificationContent);
+}
+
+function startErrorPolling() {
+    if (errorPollTimer) {
+        clearInterval(errorPollTimer);
+    }
+
+    async function checkErrors() {
+        const result = await safeExec('/usr/bin/podkop', ['check_logs']);
+        if (!result || !result.stdout) return;
+
+        const logs = result.stdout;
+
+        const errorLines = logs.split('\n').filter(line =>
+            // line.includes('saved for future filters') ||
+            line.includes('[critical]')
+        );
+
+        if (errorLines.length > 0) {
+            const currentErrors = new Set(errorLines);
+
+            if (isInitialCheck) {
+                if (errorLines.length > 0) {
+                    showErrorNotification(errorLines.join('\n'), true);
+                }
+                isInitialCheck = false;
+            } else {
+                const newErrors = [...currentErrors].filter(error => !lastErrorsSet.has(error));
+
+                newErrors.forEach(error => {
+                    showErrorNotification(error, false);
+                });
+            }
+            lastErrorsSet = currentErrors;
+        }
+    }
+
+    checkErrors();
+
+    errorPollTimer = setInterval(checkErrors, ERROR_POLL_INTERVAL);
+}
+
+function stopErrorPolling() {
+    if (errorPollTimer) {
+        clearInterval(errorPollTimer);
+        errorPollTimer = null;
+    }
+}
+
 return view.extend({
     async render() {
         document.head.insertAdjacentHTML('beforeend', `
@@ -917,6 +1078,15 @@ return view.extend({
             return true;
         };
 
+        o = mainSection.taboption('additional', form.MultiValue, 'iface', _('Source Network Interface'), _('Select the network interface from which the traffic will originate'));
+        o.ucisection = 'main';
+        o.default = 'br-lan';
+        o.load = function (section_id) {
+            return getNetworkInterfaces(this, section_id, ['wan', 'phy0-ap0', 'phy1-ap0', 'pppoe-wan']).then(() => {
+                return this.super('load', section_id);
+            });
+        };
+
         // Extra IPs and exclusions (main section)
         o = mainSection.taboption('basic', form.Flag, 'exclude_from_ip_enabled', _('IP for exclusion'), _('Specify local IP addresses that will never use the configured route'));
         o.default = '0';
@@ -950,7 +1120,39 @@ return view.extend({
 
         o = mainSection.taboption('diagnostics', form.DummyValue, '_status');
         o.rawhtml = true;
-        o.cfgvalue = () => E('div', { id: 'diagnostics-status' }, _('Loading diagnostics...'));
+        o.cfgvalue = () => E('div', {
+            id: 'diagnostics-status',
+            'style': 'cursor: pointer;'
+        }, _('Click to load diagnostics...'));
+
+        let diagnosticsUpdateTimer = null;
+
+        function startDiagnosticsUpdates() {
+            if (diagnosticsUpdateTimer) {
+                clearInterval(diagnosticsUpdateTimer);
+            }
+
+            const container = document.getElementById('diagnostics-status');
+            if (container) {
+                container.innerHTML = _('Loading diagnostics...');
+            }
+
+            updateDiagnostics();
+            diagnosticsUpdateTimer = setInterval(updateDiagnostics, 10000);
+        }
+
+        function stopDiagnosticsUpdates() {
+            if (diagnosticsUpdateTimer) {
+                clearInterval(diagnosticsUpdateTimer);
+                diagnosticsUpdateTimer = null;
+            }
+
+            // Reset the loading state when stopping updates
+            const container = document.getElementById('diagnostics-status');
+            if (container) {
+                container.removeAttribute('data-loading');
+            }
+        }
 
         function checkFakeIP() {
             const createStatus = (state, message, color) => ({
@@ -990,7 +1192,6 @@ return view.extend({
                         return resolve(createStatus('error', message, 'WARNING'));
                     }
                 } catch (error) {
-                    console.error('Error in checkFakeIP:', error);
                     return resolve(createStatus('error', 'check error', 'WARNING'));
                 }
             });
@@ -1023,12 +1224,87 @@ return view.extend({
                         return resolve(createStatus('not_working', 'not working on router', 'ERROR'));
                     }
                 } catch (error) {
-                    console.error('Error in checkFakeIPCLI:', error);
                     return resolve(createStatus('error', 'CLI check error', 'WARNING'));
                 }
             });
         }
 
+        function checkBypass() {
+            const createStatus = (state, message, color) => ({
+                state,
+                message: _(message),
+                color: STATUS_COLORS[color]
+            });
+
+            return new Promise(async (resolve) => {
+                try {
+                    let configMode = 'proxy'; // Default fallback
+                    try {
+                        const formData = document.querySelector('form.map-podkop');
+                        if (formData) {
+                            const modeSelect = formData.querySelector('select[name="cbid.podkop.main.mode"]');
+                            if (modeSelect && modeSelect.value) {
+                                configMode = modeSelect.value;
+                            }
+                        }
+                    } catch (formError) {
+                        console.error('Error getting mode from form:', formError);
+                    }
+
+                    // Check if sing-box is running
+                    const singboxStatusResult = await safeExec('/usr/bin/podkop', ['get_sing_box_status']);
+                    const singboxStatus = JSON.parse(singboxStatusResult.stdout || '{"running":0,"dns_configured":0}');
+
+                    if (!singboxStatus.running) {
+                        return resolve(createStatus('not_working', `${configMode} not running`, 'ERROR'));
+                    }
+
+                    // Fetch IP from first endpoint
+                    let ip1 = null;
+                    try {
+                        const controller1 = new AbortController();
+                        const timeoutId1 = setTimeout(() => controller1.abort(), 10000);
+
+                        const response1 = await fetch('https://fakeip.tech-domain.club/check', { signal: controller1.signal });
+                        const data1 = await response1.json();
+                        clearTimeout(timeoutId1);
+
+                        ip1 = data1.IP;
+                    } catch (error) {
+                        return resolve(createStatus('error', 'First endpoint check failed', 'WARNING'));
+                    }
+
+                    // Fetch IP from second endpoint
+                    let ip2 = null;
+                    try {
+                        const controller2 = new AbortController();
+                        const timeoutId2 = setTimeout(() => controller2.abort(), 10000);
+
+                        const response2 = await fetch('https://ip.tech-domain.club/check', { signal: controller2.signal });
+                        const data2 = await response2.json();
+                        clearTimeout(timeoutId2);
+
+                        ip2 = data2.IP;
+                    } catch (error) {
+                        return resolve(createStatus('not_working', `${configMode} not working`, 'ERROR'));
+                    }
+
+                    // Compare IPs
+                    if (ip1 && ip2) {
+                        if (ip1 !== ip2) {
+                            return resolve(createStatus('working', `${configMode} working correctly`, 'SUCCESS'));
+                        } else {
+                            return resolve(createStatus('not_working', `${configMode} routing incorrect`, 'ERROR'));
+                        }
+                    } else {
+                        return resolve(createStatus('error', 'IP comparison failed', 'WARNING'));
+                    }
+                } catch (error) {
+                    return resolve(createStatus('error', 'Bypass check error', 'WARNING'));
+                }
+            });
+        }
+
         async function updateDiagnostics() {
             try {
                 const [
@@ -1039,7 +1315,9 @@ return view.extend({
                     singbox,
                     system,
                     fakeipStatus,
-                    fakeipCLIStatus
+                    fakeipCLIStatus,
+                    dnsStatus,
+                    bypassStatus
                 ] = await Promise.all([
                     safeExec('/usr/bin/podkop', ['get_status']),
                     safeExec('/usr/bin/podkop', ['get_sing_box_status']),
@@ -1048,7 +1326,9 @@ return view.extend({
                     safeExec('/usr/bin/podkop', ['show_sing_box_version']),
                     safeExec('/usr/bin/podkop', ['show_system_info']),
                     checkFakeIP(),
-                    checkFakeIPCLI()
+                    checkFakeIPCLI(),
+                    checkDNSAvailability(),
+                    checkBypass()
                 ]);
 
                 const parsedPodkopStatus = JSON.parse(podkopStatus.stdout || '{"running":0,"enabled":0,"status":"unknown"}');
@@ -1057,7 +1337,35 @@ return view.extend({
                 const container = document.getElementById('diagnostics-status');
                 if (!container) return;
 
-                const statusSection = createStatusSection(parsedPodkopStatus, parsedSingboxStatus, podkop, luci, singbox, system, fakeipStatus, fakeipCLIStatus);
+                let configName = _('Main config');
+                try {
+                    const data = await uci.load('podkop');
+                    const proxyString = uci.get('podkop', 'main', 'proxy_string');
+
+                    if (proxyString) {
+                        const activeConfig = proxyString.split('\n')
+                            .map(line => line.trim())
+                            .find(line => line && !line.startsWith('//'));
+
+                        if (activeConfig) {
+                            if (activeConfig.includes('#')) {
+                                const label = activeConfig.split('#').pop();
+                                if (label && label.trim()) {
+                                    configName = _('Config: ') + decodeURIComponent(label);
+                                } else {
+                                    configName = _('Main config');
+                                }
+                            } else {
+                                configName = _('Main config');
+                            }
+                        }
+                    }
+                } catch (e) {
+                    console.error('Error getting config name from UCI:', e);
+                }
+
+                // Create a modified statusSection function with the configName
+                const statusSection = createStatusSection(parsedPodkopStatus, parsedSingboxStatus, podkop, luci, singbox, system, fakeipStatus, fakeipCLIStatus, dnsStatus, bypassStatus, configName);
                 container.innerHTML = '';
                 container.appendChild(statusSection);
 
@@ -1076,8 +1384,23 @@ return view.extend({
                         fakeipCLIStatus.message
                     ]).outerHTML;
                 }
+
+                const dnsRemoteElement = document.getElementById('dns-remote-status');
+                if (dnsRemoteElement) {
+                    dnsRemoteElement.innerHTML = E('span', { 'style': `color: ${dnsStatus.remote.color}` }, [
+                        dnsStatus.remote.state === 'available' ? '✔ ' : dnsStatus.remote.state === 'unavailable' ? '✘ ' : '! ',
+                        dnsStatus.remote.message
+                    ]).outerHTML;
+                }
+
+                const dnsLocalElement = document.getElementById('dns-local-status');
+                if (dnsLocalElement) {
+                    dnsLocalElement.innerHTML = E('span', { 'style': `color: ${dnsStatus.local.color}` }, [
+                        dnsStatus.local.state === 'available' ? '✔ ' : dnsStatus.local.state === 'unavailable' ? '✘ ' : '! ',
+                        dnsStatus.local.message
+                    ]).outerHTML;
+                }
             } catch (e) {
-                console.error('Error updating diagnostics:', e);
                 const container = document.getElementById('diagnostics-status');
                 if (container) {
                     container.innerHTML = E('div', { 'class': 'alert-message warning' }, [
@@ -1089,44 +1412,6 @@ return view.extend({
             }
         }
 
-        function startPeriodicUpdates(titleDiv) {
-            let updateTimer = null;
-            let isVisible = !document.hidden;
-
-            const updateStatus = async () => {
-                try {
-                    await updateDiagnostics();
-                } catch (error) {
-                    console.warn('Failed to update status:', error);
-                }
-            };
-
-            const toggleUpdates = (visible) => {
-                if (visible) {
-                    updateStatus();
-                    if (!updateTimer) {
-                        updateTimer = setInterval(updateStatus, 10000);
-                    }
-                } else if (updateTimer) {
-                    clearInterval(updateTimer);
-                    updateTimer = null;
-                }
-            };
-
-            document.addEventListener('visibilitychange', () => {
-                isVisible = !document.hidden;
-                toggleUpdates(isVisible);
-            });
-
-            toggleUpdates(isVisible);
-
-            window.addEventListener('unload', () => {
-                if (updateTimer) {
-                    clearInterval(updateTimer);
-                }
-            });
-        }
-
         // Extra Section
         const extraSection = m.section(form.TypedSection, 'extra', _('Extra configurations'));
         extraSection.anonymous = false;
@@ -1139,8 +1424,62 @@ return view.extend({
             const titleDiv = E('h2', { 'class': 'cbi-map-title' }, _('Podkop'));
             node.insertBefore(titleDiv, node.firstChild);
 
+            document.addEventListener('visibilitychange', function () {
+                const diagnosticsContainer = document.getElementById('diagnostics-status');
+                if (document.hidden) {
+                    stopDiagnosticsUpdates();
+                    stopErrorPolling();
+                } else if (diagnosticsContainer && diagnosticsContainer.hasAttribute('data-loading')) {
+                    startDiagnosticsUpdates();
+                    startErrorPolling();
+                }
+            });
+
+            setTimeout(() => {
+                const diagnosticsContainer = document.getElementById('diagnostics-status');
+                if (diagnosticsContainer) {
+                    diagnosticsContainer.addEventListener('click', function () {
+                        if (!this.hasAttribute('data-loading')) {
+                            this.setAttribute('data-loading', 'true');
+                            startDiagnosticsUpdates();
+                            startErrorPolling();
+                        }
+                    });
+                }
+
+                const tabs = node.querySelectorAll('.cbi-tabmenu');
+                if (tabs.length > 0) {
+                    tabs[0].addEventListener('click', function (e) {
+                        const tab = e.target.closest('.cbi-tab');
+                        if (tab) {
+                            const tabName = tab.getAttribute('data-tab');
+                            if (tabName === 'diagnostics') {
+                                const container = document.getElementById('diagnostics-status');
+                                if (container && !container.hasAttribute('data-loading')) {
+                                    container.setAttribute('data-loading', 'true');
+                                    startDiagnosticsUpdates();
+                                    startErrorPolling();
+                                }
+                            } else {
+                                stopDiagnosticsUpdates();
+                                stopErrorPolling();
+                            }
+                        }
+                    });
+
+                    const activeTab = tabs[0].querySelector('.cbi-tab[data-tab="diagnostics"]');
+                    if (activeTab) {
+                        const container = document.getElementById('diagnostics-status');
+                        if (container && !container.hasAttribute('data-loading')) {
+                            container.setAttribute('data-loading', 'true');
+                            startDiagnosticsUpdates();
+                            startErrorPolling();
+                        }
+                    }
+                }
+            }, 100);
+
             node.classList.add('fade-in');
-            startPeriodicUpdates(titleDiv);
             return node;
         });
 

luci-app-podkop/po/ru/podkop.po

@@ -40,8 +40,8 @@ msgstr "Конфигурация Outbound"
 msgid "Proxy Configuration URL"
 msgstr "URL конфигурации прокси"
 
-msgid "Enter connection string starting with vless:// or ss:// for proxy configuration"
-msgstr "Введите строку подключения, начинающуюся с vless:// или ss:// для настройки прокси"
+msgid "Enter connection string starting with vless:// or ss:// for proxy configuration. Add comments with // for saving other configs"
+msgstr "Введите строку подключения, начинающуюся с vless:// или ss:// для настройки прокси. Добавляйте комментарии с // для сохранения других конфигураций"
 
 msgid "Outbound Configuration"
 msgstr "Конфигурация исходящего соединения"
@@ -749,4 +749,67 @@ msgid "not works on router"
 msgstr "не работает на роутере"
 
 msgid "Diagnostics"
-msgstr "Диагностика"
+msgstr "Диагностика"
+
+msgid "DNS Status"
+msgstr "Статус DNS"
+
+msgid "Bypass Status"
+msgstr "Статус обхода"
+
+msgid "proxy working correctly"
+msgstr "прокси работает корректно"
+
+msgid "vpn working correctly"
+msgstr "vpn работает корректно"
+
+msgid "proxy not working"
+msgstr "прокси не работает"
+
+msgid "vpn not working"
+msgstr "vpn не работает"
+
+msgid "proxy not running"
+msgstr "прокси не запущен"
+
+msgid "vpn not running"
+msgstr "vpn не запущен"
+
+msgid "proxy routing incorrect"
+msgstr "маршрутизация прокси некорректна"
+
+msgid "vpn routing incorrect"
+msgstr "маршрутизация vpn некорректна"
+
+msgid "First endpoint check failed"
+msgstr "Проверка первой конечной точки не удалась"
+
+msgid "IP comparison failed"
+msgstr "Сравнение IP-адресов не удалось"
+
+msgid "Bypass check error"
+msgstr "Ошибка проверки обхода"
+
+msgid "Main config"
+msgstr "Основная конфигурация"
+
+msgid "Config without description"
+msgstr "Конфигурация без описания"
+
+msgid "DNS working"
+msgstr "DNS работает"
+
+msgid "Router DNS working"
+msgstr "DNS роутера работает"
+
+msgid "Router DNS not working"
+msgstr "DNS роутера не работает"
+
+msgid "DNS check error"
+msgstr "Ошибка проверки DNS"
+
+msgid "available"
+msgstr "доступен"
+
+msgid "unavailable"
+msgstr "недоступен"

luci-app-podkop/po/templates/podkop.pot

@@ -1103,4 +1103,70 @@ msgid "not works on router"
 msgstr ""
 
 msgid "Diagnostics"
+msgstr ""
+
+msgid "DNS Status"
+msgstr ""
+
+msgid "Bypass Status"
+msgstr ""
+
+msgid "proxy working correctly"
+msgstr ""
+
+msgid "vpn working correctly"
+msgstr ""
+
+msgid "proxy not working"
+msgstr ""
+
+msgid "vpn not working"
+msgstr ""
+
+msgid "proxy not running"
+msgstr ""
+
+msgid "vpn not running"
+msgstr ""
+
+msgid "proxy routing incorrect"
+msgstr ""
+
+msgid "vpn routing incorrect"
+msgstr ""
+
+msgid "First endpoint check failed"
+msgstr ""
+
+msgid "IP comparison failed"
+msgstr ""
+
+msgid "Bypass check error"
+msgstr ""
+
+msgid "Main config"
+msgstr ""
+
+msgid "Enter connection string starting with vless:// or ss:// for proxy configuration. Add comments with // for backup configs"
+msgstr ""
+
+msgid "Config without description"
+msgstr ""
+
+msgid "DNS working"
+msgstr ""
+
+msgid "Router DNS working"
+msgstr ""
+
+msgid "Router DNS not working"
+msgstr ""
+
+msgid "DNS check error"
+msgstr ""
+
+msgid "available"
+msgstr ""
+
+msgid "unavailable"
 msgstr ""

podkop/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=podkop
-PKG_VERSION:=0.3.28
+PKG_VERSION:=0.3.35
 PKG_RELEASE:=1
 
 PKG_MAINTAINER:=ITDog <podkop@itdog.info>

podkop/files/etc/config/podkop

@@ -34,4 +34,6 @@ config main 'main'
 	option dns_type 'doh'
 	option dns_server '8.8.8.8'
 	option dns_rewrite_ttl '60'
-	option cache_file '/tmp/cache.db'
+	option cache_file '/tmp/cache.db'
+	list iface 'br-lan'
+	option ss_uot '0'

podkop/files/etc/init.d/podkop

@@ -6,7 +6,7 @@ USE_PROCD=1
 script=$(readlink "$initscript")
 NAME="$(basename ${script:-$initscript})"
 config_load "$NAME"
-resolv_conf="/etc/resolv.conf"
+RESOLV_CONF="/etc/resolv.conf"
 
 start_service() {
     echo "Start podkop"
@@ -19,20 +19,19 @@ start_service() {
         exit 1
     fi
 
-    if grep -q FriendlyWrt /etc/banner; then
-        printf "\033[31;1mYou use FriendlyWrt. If you have problems, check out: https://t.me/itdogchat/44512/181082\033[0m\n"
+    if opkg list-installed | grep -q iptables-mod-extra; then
+        echo "Conflicting package detected: iptables-mod-extra"
+    fi
+
+    if opkg list-installed | grep -q kmod-ipt-nat; then
+        echo "Conflicting package detected: kmod-ipt-nat"
     fi
 
     if grep -qE 'doh_backup_noresolv|doh_backup_server|doh_server' /etc/config/dhcp; then
         printf "\033[31;1mDetected https-dns-proxy. Disable or uninstall it for correct functionality.\033[0m\n"
     fi
 
-    if ! ip addr | grep -q "br-lan"; then
-        echo "Interface br-lan not found"
-        exit 1
-    fi
-
-    if ! grep -q "search lan" "$resolv_conf" || ! grep -q "nameserver 127.0.0.1" "$resolv_conf"; then
+    if { ! grep -q "search lan" "$RESOLV_CONF" || ! grep -q "nameserver 127.0.0.1" "$RESOLV_CONF"; } && ! grep -q "search tail" "$RESOLV_CONF"; then
         echo "/etc/resolv.conf does not contain 'search lan' or 'nameserver 127.0.0.1' entries"
     fi
     

podkop/files/usr/bin/podkop

@@ -20,6 +20,9 @@ FAKEIP="198.18.0.0/15"
 VALID_SERVICES="russia_inside russia_outside ukraine_inside geoblock block porn news anime youtube discord meta twitter hdrezka tiktok telegram"
 DNS_RESOLVERS="1.1.1.1 1.0.0.1 8.8.8.8 8.8.4.4 9.9.9.9 9.9.9.11 94.140.14.14 94.140.15.15 208.67.220.220 208.67.222.222 77.88.8.1 77.88.8.8"
 TEST_DOMAIN="fakeip.tech-domain.club"
+INTERFACES_LIST=""
+SRC_INTERFACE=""
+RESOLV_CONF="/etc/resolv.conf"
 
 log() {
     local message="$1"
@@ -43,6 +46,33 @@ nolog() {
 }
 
 start() {
+    log "Starting podkop"
+
+    # checking
+    sing_box_version=$(sing-box version | head -n 1 | awk '{print $3}')
+    required_version="1.11.1"
+
+    if [ "$(echo -e "$sing_box_version\n$required_version" | sort -V | head -n 1)" != "$required_version" ]; then
+        log "[critical] The version of sing-box ($sing_box_version) is lower than the minimum version. Update sing-box: opkg update && opkg remove sing-box && opkg install sing-box"
+        exit 1
+    fi
+
+    if opkg list-installed | grep -q iptables-mod-extra; then
+        log "[critical] Conflicting package detected: iptables-mod-extra"
+    fi
+
+    if opkg list-installed | grep -q kmod-ipt-nat; then
+        log "[critical] Conflicting package detected: kmod-ipt-nat"
+    fi
+
+    if grep -qE 'doh_backup_noresolv|doh_backup_server|doh_server' /etc/config/dhcp; then
+        log "[critical] Detected https-dns-proxy. Disable or uninstall it for correct functionality."
+    fi
+
+    if { ! grep -q "search lan" "$RESOLV_CONF" || ! grep -q "nameserver 127.0.0.1" "$RESOLV_CONF"; } && ! grep -q "search tail" "$RESOLV_CONF"; then
+        log "[critical] /etc/resolv.conf does not contain 'search lan' or 'nameserver 127.0.0.1' entries"
+    fi
+
     migration
 
     config_foreach process_validate_service
@@ -50,7 +80,7 @@ start() {
     sleep 3
 
     mkdir -p /tmp/podkop
-  
+
     # base
     route_table_rule_mark
     create_nft_table
@@ -61,6 +91,7 @@ start() {
     sing_box_dns
     sing_box_dns_rule_fakeip
     sing_box_rule_dns
+    sing_box_create_bypass_ruleset
     sing_box_add_secure_dns_probe_domain
     sing_box_cache_file
     process_socks5
@@ -108,7 +139,7 @@ start() {
     fi
 
     sing_box_config_check
-    /etc/init.d/sing-box restart
+    /etc/init.d/sing-box start
     /etc/init.d/sing-box enable
 
     config_get proxy_string "main" "proxy_string"
@@ -261,20 +292,54 @@ route_table_rule_mark() {
     fi
 }
 
+process_interfaces() {
+    local iface="$1"
+    INTERFACES_LIST="$INTERFACES_LIST $iface"
+    iface_flag=1
+}
+
+nft_interfaces() {
+    local table=PodkopTable
+    iface_flag=0
+
+    config_list_foreach "main" "iface" "process_interfaces"
+    if [ "$iface_flag" -eq 0 ]; then
+        SRC_INTERFACE="br-lan"
+    elif [ $(echo "$INTERFACES_LIST" | wc -w) -eq 1 ]; then
+        SRC_INTERFACE=$INTERFACES_LIST
+    else
+        local set_name="interfaces"
+        if ! nft list set inet $table $set_name &>/dev/null; then
+            nft add set inet $table $set_name { type ifname\; flags interval\; }
+        fi
+
+        for interface in $INTERFACES_LIST; do
+            if ! nft list element inet $table $set_name { $interface } &>/dev/null; then
+            nft add element inet $table $set_name { $interface }
+            fi
+        done
+
+        SRC_INTERFACE=@$set_name
+    fi
+}
+
 create_nft_table() {
     local table="PodkopTable"
 
     nft add table inet $table
+
+    nft_interfaces
+
     log "Create nft rules"
     nft add chain inet $table mangle { type filter hook prerouting priority -150 \; policy accept \;}
     nft add chain inet $table proxy { type filter hook prerouting priority -100 \; policy accept \;}
 
     nft add set inet $table podkop_subnets { type ipv4_addr\; flags interval\; auto-merge\; }
 
-    nft add rule inet $table mangle iifname "br-lan" ip daddr @podkop_subnets meta l4proto tcp meta mark set 0x105 counter
-    nft add rule inet $table mangle iifname "br-lan" ip daddr @podkop_subnets meta l4proto udp meta mark set 0x105 counter
-    nft add rule inet $table mangle iifname "br-lan" ip daddr "$FAKEIP" meta l4proto tcp meta mark set 0x105 counter
-    nft add rule inet $table mangle iifname "br-lan" ip daddr "$FAKEIP" meta l4proto udp meta mark set 0x105 counter
+    nft add rule inet $table mangle iifname "$SRC_INTERFACE" ip daddr @podkop_subnets meta l4proto tcp meta mark set 0x105 counter
+    nft add rule inet $table mangle iifname "$SRC_INTERFACE" ip daddr @podkop_subnets meta l4proto udp meta mark set 0x105 counter
+    nft add rule inet $table mangle iifname "$SRC_INTERFACE" ip daddr "$FAKEIP" meta l4proto tcp meta mark set 0x105 counter
+    nft add rule inet $table mangle iifname "$SRC_INTERFACE" ip daddr "$FAKEIP" meta l4proto udp meta mark set 0x105 counter
 
     nft add rule inet $table proxy meta mark 0x105 meta l4proto tcp tproxy ip to :1602 counter
     nft add rule inet $table proxy meta mark 0x105 meta l4proto udp tproxy ip to :1602 counter
@@ -690,6 +755,42 @@ sing_box_dns() {
         }' $SING_BOX_CONFIG > /tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
 }
 
+sing_box_create_bypass_ruleset() {
+    log "Creating bypass ruleset for direct access"
+    
+    jq '
+    .route.rule_set += [{
+        "tag": "bypass",
+        "type": "inline",
+        "rules": [
+            {
+                "domain_suffix": [
+                    "ip.tech-domain.club"
+                ]
+            }
+        ]
+    }]' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
+    
+    # Add a rule to route bypass domains to direct-out outbound
+    jq '
+    .route.rules += [{
+        "inbound": ["tproxy-in"],
+        "rule_set": ["bypass"],
+        "outbound": "main",
+        "action": "route"
+    }]' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
+    
+    # Make sure the bypass ruleset is in the fakeip DNS rule
+    jq '
+    .dns.rules = (.dns.rules | map(
+        if .server == "fakeip-server" then 
+            .rule_set += ["bypass"] 
+        else 
+            . 
+        end
+    ))' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
+}
+
 sing_box_dns_rule_fakeip() {
     local rewrite_ttl
     config_get rewrite_ttl "main" "dns_rewrite_ttl" "600"
@@ -769,7 +870,7 @@ sing_box_outdound() {
         config_get interface "$section" "interface"
         
         if [ -z "$interface" ]; then
-            log "VPN interface is not set. Exit"
+            log "[critical] VPN interface is not set. Exit"
             exit 1
         fi
 
@@ -795,12 +896,13 @@ sing_box_outdound() {
             active_proxy_string=$(echo "$proxy_string" | grep -v "^[[:space:]]*\/\/" | head -n 1)
             
             if [ -z "$active_proxy_string" ]; then
-                log "Proxy string is not set. Exit"
+                log "[critical] Proxy string is not set. Exit"
                 exit 1
             fi
             
             if [[ "$active_proxy_string" =~ ^ss:// ]]; then
-                sing_box_config_shadowsocks "$section" "$active_proxy_string"
+                config_get ss_uot $section "ss_uot"
+                sing_box_config_shadowsocks "$section" "$active_proxy_string" "$ss_uot"
             elif [[ "$active_proxy_string" =~ ^vless:// ]]; then
                 sing_box_config_vless "$section" "$active_proxy_string"
             else
@@ -867,7 +969,7 @@ sing_box_rule_dns() {
 
 sing_box_config_check() {
     if ! sing-box -c $SING_BOX_CONFIG check >/dev/null 2>&1; then
-        log "Sing-box configuration is invalid"
+        log "[critical] Sing-box configuration is invalid"
         exit 1
     fi
 }
@@ -907,6 +1009,7 @@ sing_box_config_outbound_json() {
 sing_box_config_shadowsocks() {
     local section="$1"
     local STRING="$2"
+    ss_uot="${3:-0}"
 
     if echo "$STRING" | cut -d'/' -f3 | cut -d'@' -f1 | base64 -d 2>/dev/null | grep -q ":"; then
         local encrypted_part=$(echo "$STRING" | cut -d'/' -f3 | cut -d'@' -f1 | base64 -d 2>/dev/null )
@@ -930,6 +1033,7 @@ sing_box_config_shadowsocks() {
     --argjson port "$port" \
     --arg method "$method" \
     --arg password "$password" \
+    --argjson ss_uot "$ss_uot" \
     '. |
       .outbounds |= (
         map(
@@ -939,9 +1043,8 @@ sing_box_config_shadowsocks() {
               "server": $server,
               "server_port": ($port | tonumber),
               "method": $method,
-              "password": $password,
-              "udp_over_tcp": { "enabled": true, "version": 2 }
-            }
+              "password": $password
+            } + (if $ss_uot == 1 then { "udp_over_tcp": { "enabled": true, "version": 2 } } else {} end)
           else . end
         ) +
         (
@@ -952,9 +1055,8 @@ sing_box_config_shadowsocks() {
               "server": $server,
               "server_port": ($port | tonumber),
               "method": $method,
-              "password": $password,
-              "udp_over_tcp": { "enabled": true, "version": 2 }
-            }]
+              "password": $password
+            } + (if $ss_uot == 1 then { "udp_over_tcp": { "enabled": true, "version": 2 } } else {} end)]
           else [] end
         )
       )' $SING_BOX_CONFIG >/tmp/sing-box-config-tmp.json && mv /tmp/sing-box-config-tmp.json $SING_BOX_CONFIG
@@ -1290,7 +1392,7 @@ list_subnets_download() {
         "discord")
             URL=$SUBNETS_DISCORD
             nft add set inet $table podkop_discord_subnets { type ipv4_addr\; flags interval\; auto-merge\; }
-            nft add rule inet $table mangle iifname "br-lan" ip daddr @podkop_discord_subnets udp dport { 50000-65535 } meta mark set 0x105 counter
+            nft add rule inet $table mangle iifname "$SRC_INTERFACE" ip daddr @podkop_discord_subnets udp dport { 50000-65535 } meta mark set 0x105 counter
             ;;
         *)
             return
@@ -1530,9 +1632,11 @@ sing_box_rules_source_ip_cidr() {
 ## nftables
 list_all_traffic_from_ip() {
     local ip="$1"
-    if ! nft list chain inet PodkopTable mangle | grep -q "ip saddr $ip"; then
-        nft add set inet PodkopTable localv4 { type ipv4_addr\; flags interval\; }
-        nft add element inet PodkopTable localv4 { \
+    local table="PodkopTable"
+
+    if ! nft list chain inet $table mangle | grep -q "ip saddr $ip"; then
+        nft add set inet $table localv4 { type ipv4_addr\; flags interval\; }
+        nft add element inet $table localv4 { \
             0.0.0.0/8, \
             10.0.0.0/8, \
             127.0.0.0/8, \
@@ -1546,8 +1650,8 @@ list_all_traffic_from_ip() {
             203.0.113.0/24, \
             224.0.0.0/4, \
             240.0.0.0-255.255.255.255 }
-        nft insert rule inet PodkopTable mangle iifname "br-lan" ip saddr $ip meta l4proto { tcp, udp } meta mark set 0x105 counter
-        nft insert rule inet PodkopTable mangle ip saddr $ip ip daddr @localv4 return
+        nft insert rule inet $table mangle iifname "$SRC_INTERFACE" ip saddr $ip meta l4proto { tcp, udp } meta mark set 0x105 counter
+        nft insert rule inet $table mangle ip saddr $ip ip daddr @localv4 return
     fi
 }
 
@@ -1781,12 +1885,24 @@ check_fakeip() {
 check_logs() {
     nolog "Showing podkop logs from system journal..."
     
-    if command -v logread >/dev/null 2>&1; then
-        logread -e podkop  | tail -n 50
-    else
+    if ! command -v logread >/dev/null 2>&1; then
         nolog "Error: logread command not found"
         return 1
     fi
+
+    # Get all logs first
+    local all_logs=$(logread)
+    
+    # Find the last occurrence of "Starting podkop"
+    local start_line=$(echo "$all_logs" | grep -n "podkop.*Starting podkop" | tail -n 1 | cut -d: -f1)
+    
+    if [ -z "$start_line" ]; then
+        nolog "No 'Starting podkop' message found in logs"
+        return 1
+    fi
+    
+    # Output all logs from the last start
+    echo "$all_logs" | tail -n +"$start_line"
 }
 
 show_sing_box_config() {
@@ -1842,6 +1958,7 @@ show_config() {
         -e 's/\(ss:\/\/[^@]*@\)/ss:\/\/MASKED@/g' \
         -e 's/\(pbk=[^&]*\)/pbk=MASKED/g' \
         -e 's/\(sid=[^&]*\)/sid=MASKED/g' \
+        -e 's/\(option dns_server '\''[^'\'']*\.dns\.nextdns\.io'\''\)/option dns_server '\''MASKED.dns.nextdns.io'\''/g' \
         > "$tmp_config"
 
     cat "$tmp_config"
@@ -1946,6 +2063,67 @@ get_status() {
     echo "{\"running\":$running,\"enabled\":$enabled,\"status\":\"$status\"}"
 }
 
+check_dns_available() {
+    local dns_type=$(uci get podkop.main.dns_type 2>/dev/null)
+    local dns_server=$(uci get podkop.main.dns_server 2>/dev/null)
+    local is_available=0
+    local status="unavailable"
+    local local_dns_working=0
+    local local_dns_status="unavailable"
+    
+    # Mask NextDNS ID if present
+    local display_dns_server="$dns_server"
+    if echo "$dns_server" | grep -q "\.dns\.nextdns\.io$"; then
+        local nextdns_id=$(echo "$dns_server" | cut -d'.' -f1)
+        display_dns_server="$(echo "$nextdns_id" | sed 's/./*/g').dns.nextdns.io"
+    fi
+
+    if [ "$dns_type" = "doh" ]; then
+        local result=""
+        
+        if echo "$dns_server" | grep -q "quad9.net" || \
+           echo "$dns_server" | grep -qE "^9\.9\.9\.(9|10|11)$|^149\.112\.112\.(112|10|11)$|^2620:fe::(fe|9|10|11)$|^2620:fe::fe:(10|11)$"; then
+            result=$(curl --connect-timeout 5 -s -H "accept: application/dns-json" "https://$dns_server:5053/dns-query?name=itdog.info&type=A")
+        else
+            result=$(curl --connect-timeout 5 -s -H "accept: application/dns-json" "https://$dns_server/dns-query?name=itdog.info&type=A")
+            if [ $? -eq 0 ] && echo "$result" | grep -q "data"; then
+                is_available=1
+                status="available"
+            else
+                result=$(curl --connect-timeout 5 -s -H "accept: application/dns-json" "https://$dns_server/resolve?name=itdog.info&type=A")
+            fi
+        fi
+        
+        if [ $? -eq 0 ] && echo "$result" | grep -q "data"; then
+            is_available=1
+            status="available"
+        fi
+    elif [ "$dns_type" = "dot" ]; then
+        (nc "$dns_server" 853 </dev/null >/dev/null 2>&1) & pid=$!
+        sleep 2
+        if kill -0 $pid 2>/dev/null; then
+            kill $pid 2>/dev/null
+            wait $pid 2>/dev/null
+        else
+            is_available=1
+            status="available"
+        fi
+    elif [ "$dns_type" = "udp" ]; then
+        if nslookup -timeout=2 itdog.info $dns_server >/dev/null 2>&1; then
+            is_available=1
+            status="available"
+        fi
+    fi
+    
+    # Check if local DNS resolver is working
+    if nslookup -timeout=2 $TEST_DOMAIN 127.0.0.1 >/dev/null 2>&1; then
+        local_dns_working=1
+        local_dns_status="available"
+    fi
+    
+    echo "{\"dns_type\":\"$dns_type\",\"dns_server\":\"$display_dns_server\",\"is_available\":$is_available,\"status\":\"$status\",\"local_dns_working\":$local_dns_working,\"local_dns_status\":\"$local_dns_status\"}"
+}
+
 sing_box_add_secure_dns_probe_domain() {
     local domain="$TEST_DOMAIN"
     local override_port=8443
@@ -2040,8 +2218,11 @@ case "$1" in
     get_sing_box_status)
         get_sing_box_status
         ;;
+    check_dns_available)
+        check_dns_available
+        ;;
     *)
-        echo "Usage: $0 {start|stop|restart|reload|enable|disable|main|list_update|check_proxy|check_nft|check_github|check_logs|check_sing_box_connections|check_sing_box_logs|check_fakeip|check_dnsmasq|show_config|show_version|show_sing_box_config|show_luci_version|show_sing_box_version|show_system_info|get_status|get_sing_box_status}"
+        echo "Usage: $0 {start|stop|restart|reload|enable|disable|main|list_update|check_proxy|check_nft|check_github|check_logs|check_sing_box_connections|check_sing_box_logs|check_fakeip|check_dnsmasq|show_config|show_version|show_sing_box_config|show_luci_version|show_sing_box_version|show_system_info|get_status|get_sing_box_status|check_dns_available}"
         exit 1
         ;;
 esac