├── legacy ├── .gitignore ├── README ├── src │ └── main │ │ ├── resources │ │ ├── plugin.ini │ │ ├── locale │ │ │ ├── messages_en.properties │ │ │ └── messages_ru.properties │ │ └── preferences.json │ │ └── java │ │ └── io │ │ └── github │ │ └── krlvm │ │ └── powertunnel │ │ └── plugins │ │ └── dns │ │ └── legacy │ │ ├── DNSParseException.java │ │ ├── DNSPreset.java │ │ ├── DNSListener.java │ │ ├── DNSParser.java │ │ ├── LegacyDNSPlugin.java │ │ └── LegacyDohResolver.java └── build.gradle ├── .gitignore ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── settings.gradle ├── src └── main │ ├── resources │ ├── plugin.ini │ ├── locale │ │ ├── messages_en.properties │ │ └── messages_ru.properties │ └── preferences.json │ └── java │ ├── io │ └── github │ │ └── krlvm │ │ └── powertunnel │ │ └── plugins │ │ └── dns │ │ ├── DNSParseException.java │ │ ├── DNSPreset.java │ │ ├── DNSListener.java │ │ ├── DNSParser.java │ │ └── DNSPlugin.java │ └── org │ └── xbill │ └── DNS │ └── config │ └── AndroidResolverConfigProvider.java ├── gradlew.bat ├── gradlew └── LICENSE /legacy/.gitignore: -------------------------------------------------------------------------------- 1 | # Build Files 2 | /build/ -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Idea Files 2 | /.idea/ 3 | /PowerTunnel-DNS.iml 4 | 5 | # Build Files 6 | /build/ 7 | /.gradle/ -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/krlvm/PowerTunnel-DNS/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /legacy/README: -------------------------------------------------------------------------------- 1 | Legacy DNS plugin with limited functionality is built for Android version of PowerTunnel to support Android versions older than Android 8 Oreo, which is required by recent dnsjava version, on which this plugin depends, to work. -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.8-bin.zip 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'PowerTunnel-DNS' 2 | 3 | sourceControl { 4 | gitRepository(new URI('https://github.com/krlvm/PowerTunnel.git')) { 5 | producesModule('io.github.krlvm.powertunnel:sdk') 6 | } 7 | } 8 | 9 | include 'legacy' 10 | 11 | -------------------------------------------------------------------------------- /src/main/resources/plugin.ini: -------------------------------------------------------------------------------- 1 | id: dns 2 | version: 1.0.2 3 | versionCode: 3 4 | name: DNS 5 | description: DNS Resolver for PowerTunnel 6 | author: krlvm 7 | homepage: https://github.com/krlvm/PowerTunnel-DNS 8 | mainClass: io.github.krlvm.powertunnel.plugins.dns.DNSPlugin 9 | targetSdkVersion: 102 -------------------------------------------------------------------------------- /legacy/src/main/resources/plugin.ini: -------------------------------------------------------------------------------- 1 | id: dns-legacy 2 | version: 1.0 3 | versionCode: 1 4 | name: DNS (Legacy) 5 | description: DNS Resolver for PowerTunnel adapted for old Android versions 6 | author: krlvm 7 | homepage: https://github.com/krlvm/PowerTunnel-DNS 8 | mainClass: io.github.krlvm.powertunnel.plugins.dns.legacy.LegacyDNSPlugin 9 | targetSdkVersion: 104 -------------------------------------------------------------------------------- /legacy/src/main/resources/locale/messages_en.properties: -------------------------------------------------------------------------------- 1 | allow_insecure=Allow insecure DoH requests 2 | allow_insecure.desc=Allow unencrypted plain-HTTP DoH requests 3 | dns=DNS or DoH Resolver 4 | dns.desc=Start DoH servers with "https://" 5 | dns_preset=DNS Profile 6 | dns_preset.item.custom=Custom 7 | dnssec=Enable DNSSec 8 | dnssec.desc=Validates DNS responses and protects you from DNS substitution -------------------------------------------------------------------------------- /legacy/src/main/resources/locale/messages_ru.properties: -------------------------------------------------------------------------------- 1 | allow_insecure=Разрешить небезопасные запросы DoH 2 | allow_insecure.desc=Разрешить незашифрованные HTTP DoH запросы 3 | dns=Сервер DNS или DoH 4 | dns.desc=Начинайте DoH сервер с "https://" 5 | dns_preset=Профиль DNS 6 | dns_preset.item.custom=Настраиваемый 7 | dnssec=Включить DNSSec 8 | dnssec.desc=Проверяет ответы DNS-сервера и защищиает от подмены ответов DNS -------------------------------------------------------------------------------- /src/main/resources/locale/messages_en.properties: -------------------------------------------------------------------------------- 1 | allow_insecure=Allow insecure DoH requests 2 | allow_insecure.desc=Allow unencrypted plain-HTTP DoH requests 3 | dns=DNS or DoH Resolver 4 | dns.desc=Start DoH servers with "https://" 5 | dns_preset=DNS Profile 6 | dns_preset.item.custom=Custom 7 | dnssec=Enable DNSSec 8 | dnssec.desc=Validates DNS responses and protects you from DNS substitution 9 | ignore_system_hosts=Ignore system hosts file 10 | ignore_system_hosts.desc=Ignores system hosts file while resolving domain name 11 | -------------------------------------------------------------------------------- /src/main/resources/locale/messages_ru.properties: -------------------------------------------------------------------------------- 1 | allow_insecure=Разрешить небезопасные запросы DoH 2 | allow_insecure.desc=Разрешить незашифрованные HTTP DoH запросы 3 | dns=Сервер DNS или DoH 4 | dns.desc=Начинайте DoH сервер с "https://" 5 | dns_preset=Профиль DNS 6 | dns_preset.item.custom=Настраиваемый 7 | dnssec=Включить DNSSec 8 | dnssec.desc=Проверяет ответы DNS-сервера и защищиает от подмены ответов DNS 9 | ignore_system_hosts=Игнорировать системный файл hosts 10 | ignore_system_hosts.desc=Игнорирует системный файл hosts при разрешении доменных имен 11 | -------------------------------------------------------------------------------- /legacy/src/main/resources/preferences.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "key": "dns_preset", 4 | "type": "select", 5 | "items": [ 6 | { 7 | "key": "custom" 8 | }, 9 | { 10 | "key": "google", 11 | "name": "Google" 12 | }, 13 | { 14 | "key": "google_doh", 15 | "name": "Google (DoH)" 16 | }, 17 | { 18 | "key": "cloudflare", 19 | "name": "Cloudflare" 20 | }, 21 | { 22 | "key": "cloudflare_doh", 23 | "name": "Cloudflare (DoH)" 24 | } 25 | ], 26 | "defaultValue": "custom" 27 | }, 28 | { 29 | "key": "dns", 30 | "type": "string", 31 | "defaultValue": "", 32 | "dependency": "dns_preset", 33 | "dependencyValue": "custom" 34 | }, 35 | { 36 | "key": "dnssec", 37 | "type": "checkbox", 38 | "defaultValue": "false" 39 | }, 40 | { 41 | "key": "allow_insecure", 42 | "type": "switch", 43 | "defaultValue": "false" 44 | } 45 | ] -------------------------------------------------------------------------------- /src/main/resources/preferences.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "key": "dns_preset", 4 | "type": "select", 5 | "items": [ 6 | { 7 | "key": "custom" 8 | }, 9 | { 10 | "key": "google", 11 | "name": "Google" 12 | }, 13 | { 14 | "key": "google_doh", 15 | "name": "Google (DoH)" 16 | }, 17 | { 18 | "key": "cloudflare", 19 | "name": "Cloudflare" 20 | }, 21 | { 22 | "key": "cloudflare_doh", 23 | "name": "Cloudflare (DoH)" 24 | } 25 | ], 26 | "defaultValue": "custom" 27 | }, 28 | { 29 | "key": "dns", 30 | "type": "string", 31 | "defaultValue": "", 32 | "dependency": "dns_preset", 33 | "dependencyValue": "custom" 34 | }, 35 | { 36 | "key": "dnssec", 37 | "type": "checkbox", 38 | "defaultValue": "false" 39 | }, 40 | { 41 | "key": "allow_insecure", 42 | "type": "switch", 43 | "defaultValue": "false" 44 | }, 45 | { 46 | "key": "ignore_system_hosts", 47 | "type": "switch", 48 | "defaultValue": "false" 49 | } 50 | ] -------------------------------------------------------------------------------- /src/main/java/io/github/krlvm/powertunnel/plugins/dns/DNSParseException.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns; 19 | 20 | public class DNSParseException extends RuntimeException { 21 | 22 | public DNSParseException(String message) { 23 | this(message, null); 24 | } 25 | 26 | public DNSParseException(String message, Throwable cause) { 27 | super(message, cause); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /legacy/build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'java' 3 | } 4 | 5 | group 'io.github.krlvm.powertunnel.plugins' 6 | version '1.0' 7 | 8 | repositories { 9 | mavenCentral() 10 | } 11 | 12 | configurations { 13 | fatImplementation 14 | compile.extendsFrom(fatImplementation) 15 | } 16 | 17 | task fatJar(type: Jar, group: 'build', description: 'Assembles a jar archive containing the main classes and all dependencies.') { 18 | archiveClassifier = 'all' 19 | with jar 20 | duplicatesStrategy DuplicatesStrategy.EXCLUDE 21 | from { 22 | configurations.fatImplementation.asFileTree.files.collect { zipTree(it) } 23 | } { 24 | exclude 'META-INF/*.RSA', 'META-INF/*.SF', 'META-INF/*.DSA' 25 | } 26 | } 27 | 28 | dependencies { 29 | implementation('io.github.krlvm.powertunnel:sdk') { 30 | version { 31 | branch = 'master' 32 | } 33 | } 34 | 35 | fatImplementation 'dnsjava:dnsjava:2.1.9' 36 | fatImplementation 'org.jitsi:dnssecjava:1.2.0' 37 | 38 | testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0' 39 | testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0' 40 | } 41 | 42 | test { 43 | useJUnitPlatform() 44 | } -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/DNSParseException.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | public class DNSParseException extends RuntimeException { 21 | 22 | public DNSParseException(String message) { 23 | this(message, null); 24 | } 25 | 26 | public DNSParseException(String message, Throwable cause) { 27 | super(message, cause); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/main/java/io/github/krlvm/powertunnel/plugins/dns/DNSPreset.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns; 19 | 20 | public enum DNSPreset { 21 | 22 | CUSTOM(null), 23 | 24 | GOOGLE("8.8.8.8"), 25 | GOOGLE_DOH("https://8.8.8.8/dns-query"), 26 | 27 | CLOUDFLARE("1.1.1.1"), 28 | CLOUDFLARE_DOH("https://1.1.1.1/dns-query"); 29 | 30 | 31 | 32 | private final String address; 33 | 34 | DNSPreset(String address) { 35 | this.address = address; 36 | } 37 | 38 | public String getAddress() { 39 | return address; 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/DNSPreset.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | public enum DNSPreset { 21 | 22 | CUSTOM(null), 23 | 24 | GOOGLE("8.8.8.8"), 25 | GOOGLE_DOH("https://8.8.8.8/dns-query"), 26 | 27 | CLOUDFLARE("1.1.1.1"), 28 | CLOUDFLARE_DOH("https://1.1.1.1/dns-query"); 29 | 30 | 31 | 32 | private final String address; 33 | 34 | DNSPreset(String address) { 35 | this.address = address; 36 | } 37 | 38 | public String getAddress() { 39 | return address; 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /src/main/java/org/xbill/DNS/config/AndroidResolverConfigProvider.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package org.xbill.DNS.config; 19 | 20 | import java.net.InetSocketAddress; 21 | import java.util.List; 22 | 23 | import org.xbill.DNS.SimpleResolver; 24 | 25 | public class AndroidResolverConfigProvider extends BaseResolverConfigProvider { 26 | 27 | public static List dnsServers = null; 28 | public static String domainsSearchPath = null; 29 | 30 | @Override 31 | public void initialize() throws InitializationException { 32 | if (dnsServers != null) { 33 | for (String address : dnsServers) { 34 | addNameserver(new InetSocketAddress(address, SimpleResolver.DEFAULT_PORT)); 35 | } 36 | } 37 | if (domainsSearchPath != null) { 38 | parseSearchPathList(domainsSearchPath, ","); 39 | } 40 | } 41 | 42 | @Override 43 | public boolean isEnabled() { 44 | return System.getProperty("java.vendor").contains("Android"); 45 | } 46 | } -------------------------------------------------------------------------------- /src/main/java/io/github/krlvm/powertunnel/plugins/dns/DNSListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns; 19 | 20 | import io.github.krlvm.powertunnel.sdk.proxy.DNSRequest; 21 | import io.github.krlvm.powertunnel.sdk.proxy.DNSResolver; 22 | import io.github.krlvm.powertunnel.sdk.proxy.ProxyAdapter; 23 | import org.jetbrains.annotations.NotNull; 24 | import org.slf4j.Logger; 25 | import org.slf4j.LoggerFactory; 26 | 27 | import java.net.UnknownHostException; 28 | 29 | public class DNSListener extends ProxyAdapter { 30 | 31 | private static final Logger LOGGER = LoggerFactory.getLogger(DNSListener.class); 32 | 33 | private final DNSResolver resolver; 34 | 35 | public DNSListener(DNSResolver resolver) { 36 | this.resolver = resolver; 37 | } 38 | 39 | @Override 40 | public Boolean onResolutionRequest(@NotNull DNSRequest request) { 41 | if(request.getResponse() != null) return super.onResolutionRequest(request); 42 | try { 43 | request.setResponse(resolver.resolve(request.getHost(), request.getPort())); 44 | return true; 45 | } catch (UnknownHostException ex) { 46 | LOGGER.debug("Failed to resolve hostname '{}': {}", request.getHost(), ex.getMessage(), ex); 47 | return false; 48 | } 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/DNSListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | import io.github.krlvm.powertunnel.sdk.proxy.DNSRequest; 21 | import io.github.krlvm.powertunnel.sdk.proxy.DNSResolver; 22 | import io.github.krlvm.powertunnel.sdk.proxy.ProxyAdapter; 23 | import org.jetbrains.annotations.NotNull; 24 | import org.slf4j.Logger; 25 | import org.slf4j.LoggerFactory; 26 | 27 | import java.net.UnknownHostException; 28 | 29 | public class DNSListener extends ProxyAdapter { 30 | 31 | private static final Logger LOGGER = LoggerFactory.getLogger(DNSListener.class); 32 | 33 | private final DNSResolver resolver; 34 | 35 | public DNSListener(DNSResolver resolver) { 36 | this.resolver = resolver; 37 | } 38 | 39 | @Override 40 | public Boolean onResolutionRequest(@NotNull DNSRequest request) { 41 | if(request.getResponse() != null) return super.onResolutionRequest(request); 42 | try { 43 | request.setResponse(resolver.resolve(request.getHost(), request.getPort())); 44 | return true; 45 | } catch (UnknownHostException ex) { 46 | LOGGER.debug("Failed to resolve hostname '{}': {}", request.getHost(), ex.getMessage(), ex); 47 | return false; 48 | } 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 34 | 35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 37 | 38 | @rem Find java.exe 39 | if defined JAVA_HOME goto findJavaFromJavaHome 40 | 41 | set JAVA_EXE=java.exe 42 | %JAVA_EXE% -version >NUL 2>&1 43 | if "%ERRORLEVEL%" == "0" goto execute 44 | 45 | echo. 46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 47 | echo. 48 | echo Please set the JAVA_HOME variable in your environment to match the 49 | echo location of your Java installation. 50 | 51 | goto fail 52 | 53 | :findJavaFromJavaHome 54 | set JAVA_HOME=%JAVA_HOME:"=% 55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 56 | 57 | if exist "%JAVA_EXE%" goto execute 58 | 59 | echo. 60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 61 | echo. 62 | echo Please set the JAVA_HOME variable in your environment to match the 63 | echo location of your Java installation. 64 | 65 | goto fail 66 | 67 | :execute 68 | @rem Setup the command line 69 | 70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 71 | 72 | 73 | @rem Execute Gradle 74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 75 | 76 | :end 77 | @rem End local scope for the variables with windows NT shell 78 | if "%ERRORLEVEL%"=="0" goto mainEnd 79 | 80 | :fail 81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 82 | rem the _cmd.exe /c_ return code! 83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 84 | exit /b 1 85 | 86 | :mainEnd 87 | if "%OS%"=="Windows_NT" endlocal 88 | 89 | :omega 90 | -------------------------------------------------------------------------------- /src/main/java/io/github/krlvm/powertunnel/plugins/dns/DNSParser.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns; 19 | 20 | public class DNSParser { 21 | 22 | /** 23 | * Retrieves is an IP address is an IPv6 address 24 | * 25 | * Very dirty implementation, needs to be rewritten 26 | * That is needed because we support (DNS) both IPv4 and IPv6 27 | * addresses, and they may have a specified port 28 | * 29 | * IPv4 example: 127.0.0.1 30 | * with port: 127.0.0.1:8085 31 | * IPv6 example: ::1 32 | * with port: [::1]:8085 33 | * 34 | * We will count occurrences of ":" in an address 35 | * 36 | * @param address - an IP address 37 | * @return true if it's IPv6 or false if it is IPv4 (or invalid) 38 | */ 39 | public static boolean isIPv6(String address) { 40 | return address.replaceAll("[^:]", "").length() >= 2; 41 | } 42 | 43 | public static boolean isIPv6WithPort(String address) { 44 | return isIPv6(address) && address.contains("[") && address.contains("]:"); 45 | } 46 | 47 | public static Object[] splitIPv6(String address) { 48 | if(!isIPv6WithPort(address)) { 49 | return null; 50 | } 51 | int index = address.lastIndexOf(":"); 52 | try { 53 | return new Object[]{ 54 | address.substring(0, index).replace("[", "").replace("]", ""), 55 | Integer.parseInt(address.substring(index+1)) 56 | }; 57 | } catch (NumberFormatException ex) { 58 | return null; 59 | } 60 | } 61 | 62 | public static boolean isIPv4(String address) { 63 | return !isIPv6(address); 64 | } 65 | 66 | public static boolean isIPv4WithPort(String address) { 67 | return isIPv4(address) && address.contains(":"); 68 | } 69 | 70 | public static Object[] splitIPv4(String address) { 71 | if(!isIPv4WithPort(address)) { 72 | return null; 73 | } 74 | int index = address.lastIndexOf(":"); 75 | try { 76 | return new Object[]{ 77 | address.substring(0, index), 78 | Integer.parseInt(address.substring(index+1)) 79 | }; 80 | } catch (NumberFormatException ex) { 81 | return null; 82 | } 83 | } 84 | 85 | public static Object[] splitAddress(String address) { 86 | if(!hasPort(address)) { 87 | return null; 88 | } 89 | if(isIPv6WithPort(address)) { 90 | return splitIPv6(address); 91 | } else if(isIPv4WithPort(address)) { 92 | return splitIPv4(address); 93 | } else { 94 | return null; 95 | } 96 | } 97 | 98 | public static boolean hasPort(String address) { 99 | return isIPv6WithPort(address) || isIPv4WithPort(address); 100 | } 101 | } 102 | -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/DNSParser.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | public class DNSParser { 21 | 22 | /** 23 | * Retrieves is an IP address is an IPv6 address 24 | * 25 | * Very dirty implementation, needs to be rewritten 26 | * That is needed because we support (DNS) both IPv4 and IPv6 27 | * addresses, and they may have a specified port 28 | * 29 | * IPv4 example: 127.0.0.1 30 | * with port: 127.0.0.1:8085 31 | * IPv6 example: ::1 32 | * with port: [::1]:8085 33 | * 34 | * We will count occurrences of ":" in an address 35 | * 36 | * @param address - an IP address 37 | * @return true if it's IPv6 or false if it is IPv4 (or invalid) 38 | */ 39 | public static boolean isIPv6(String address) { 40 | return address.replaceAll("[^:]", "").length() >= 2; 41 | } 42 | 43 | public static boolean isIPv6WithPort(String address) { 44 | return isIPv6(address) && address.contains("[") && address.contains("]:"); 45 | } 46 | 47 | public static Object[] splitIPv6(String address) { 48 | if(!isIPv6WithPort(address)) { 49 | return null; 50 | } 51 | int index = address.lastIndexOf(":"); 52 | try { 53 | return new Object[]{ 54 | address.substring(0, index).replace("[", "").replace("]", ""), 55 | Integer.parseInt(address.substring(index+1)) 56 | }; 57 | } catch (NumberFormatException ex) { 58 | return null; 59 | } 60 | } 61 | 62 | public static boolean isIPv4(String address) { 63 | return !isIPv6(address); 64 | } 65 | 66 | public static boolean isIPv4WithPort(String address) { 67 | return isIPv4(address) && address.contains(":"); 68 | } 69 | 70 | public static Object[] splitIPv4(String address) { 71 | if(!isIPv4WithPort(address)) { 72 | return null; 73 | } 74 | int index = address.lastIndexOf(":"); 75 | try { 76 | return new Object[]{ 77 | address.substring(0, index), 78 | Integer.parseInt(address.substring(index+1)) 79 | }; 80 | } catch (NumberFormatException ex) { 81 | return null; 82 | } 83 | } 84 | 85 | public static Object[] splitAddress(String address) { 86 | if(!hasPort(address)) { 87 | return null; 88 | } 89 | if(isIPv6WithPort(address)) { 90 | return splitIPv6(address); 91 | } else if(isIPv4WithPort(address)) { 92 | return splitIPv4(address); 93 | } else { 94 | return null; 95 | } 96 | } 97 | 98 | public static boolean hasPort(String address) { 99 | return isIPv6WithPort(address) || isIPv4WithPort(address); 100 | } 101 | } 102 | -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/LegacyDNSPlugin.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | import io.github.krlvm.powertunnel.sdk.configuration.Configuration; 21 | import io.github.krlvm.powertunnel.sdk.plugin.PowerTunnelPlugin; 22 | import io.github.krlvm.powertunnel.sdk.proxy.ProxyServer; 23 | import org.jetbrains.annotations.NotNull; 24 | import org.jitsi.dnssec.validator.ValidatingResolver; 25 | import org.slf4j.Logger; 26 | import org.slf4j.LoggerFactory; 27 | import org.xbill.DNS.*; 28 | 29 | import java.net.InetSocketAddress; 30 | import java.net.UnknownHostException; 31 | 32 | public class LegacyDNSPlugin extends PowerTunnelPlugin { 33 | 34 | private static final Logger LOGGER = LoggerFactory.getLogger(LegacyDNSPlugin.class); 35 | 36 | @Override 37 | public void onProxyInitialization(@NotNull ProxyServer proxy) { 38 | final Configuration configuration = readConfiguration(); 39 | 40 | String dns; 41 | final DNSPreset preset; 42 | try { 43 | preset = DNSPreset.valueOf(configuration.get("dns_preset", "custom").toUpperCase()); 44 | } catch (IllegalArgumentException ex) { 45 | throw new DNSParseException("Invalid DNS Preset"); 46 | } 47 | 48 | if(preset == DNSPreset.CUSTOM) { 49 | dns = configuration.get("dns", ""); 50 | } else { 51 | dns = preset.getAddress(); 52 | } 53 | 54 | final boolean doh = dns.startsWith("https://") 55 | || (configuration.getBoolean("allow_insecure", false) && dns.startsWith("http://")); 56 | if (dns.startsWith("http://") && !doh) { 57 | throw new DNSParseException("Please, enable insecure DNS requests to use Plain-HTTP DNS Resolver"); 58 | } 59 | 60 | final boolean sec = configuration.getBoolean("dnssec", false); 61 | 62 | if (dns.endsWith("/")) { 63 | dns = dns.substring(0, dns.length() - 1); 64 | } 65 | 66 | Resolver resolver = null; 67 | if(doh) { 68 | resolver = new LegacyDohResolver(dns); 69 | } else { 70 | if(!dns.isEmpty()) { 71 | if (!DNSParser.isIPv4(dns) && !DNSParser.isIPv4WithPort(dns) && !DNSParser.isIPv6(dns) && !DNSParser.isIPv6WithPort(dns)) { 72 | throw new DNSParseException("Invalid DNS address"); 73 | } 74 | String address = dns; 75 | int port = -1; 76 | if (DNSParser.hasPort(address)) { 77 | Object[] split = DNSParser.splitAddress(address); 78 | if (split != null) { 79 | address = ((String) split[0]); 80 | port = ((int) split[1]); 81 | } 82 | } 83 | try { 84 | resolver = new SimpleResolver(address); 85 | if (port != -1) resolver.setPort(port); 86 | } catch (UnknownHostException ex) { 87 | throw new RuntimeException("Failed to initialize specified DNS Resolver: " + ex.getMessage(), ex); 88 | } 89 | } 90 | if(sec) { 91 | if (resolver == null) { 92 | try { 93 | resolver = new SimpleResolver(); 94 | } catch (UnknownHostException ex) { 95 | throw new RuntimeException("Failed to initialize default DNS Resolver: " + ex.getMessage(), ex); 96 | } 97 | } 98 | resolver = new ValidatingResolver(resolver); 99 | } 100 | } 101 | 102 | if(resolver == null) return; 103 | LOGGER.info("DNS Resolver (L): '{}' [dnsOverHttps={}, dnsSec={}]", dns, doh, sec); 104 | 105 | final Resolver pResolver = resolver; 106 | registerProxyListener(new DNSListener((host, port) -> { 107 | final Lookup lookup; 108 | try { 109 | lookup = new Lookup(host, Type.A); 110 | } catch (TextParseException ex) { 111 | throw new UnknownHostException(); 112 | } 113 | lookup.setResolver(pResolver); 114 | final Record[] records = lookup.run(); 115 | if (lookup.getResult() == Lookup.SUCCESSFUL) { 116 | return new InetSocketAddress(((ARecord) records[0]).getAddress(), port); 117 | } else { 118 | throw new UnknownHostException(); 119 | } 120 | })); 121 | } 122 | } 123 | -------------------------------------------------------------------------------- /legacy/src/main/java/io/github/krlvm/powertunnel/plugins/dns/legacy/LegacyDohResolver.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns.legacy; 19 | 20 | import io.github.krlvm.powertunnel.sdk.utiities.Base64Compat; 21 | import org.slf4j.Logger; 22 | import org.slf4j.LoggerFactory; 23 | import org.xbill.DNS.*; 24 | 25 | import java.io.IOException; 26 | import java.net.HttpURLConnection; 27 | import java.net.SocketTimeoutException; 28 | import java.net.URL; 29 | import java.util.List; 30 | 31 | /** 32 | * Very basic implementation of 33 | * DNS over HTTPS (DoH) Resolver 34 | * for dnsjava v2.x 35 | * 36 | * Parts of code were derived from 37 | * DohResolver of dnsjava v3.x 38 | */ 39 | public class LegacyDohResolver implements Resolver { 40 | 41 | private final Logger log = LoggerFactory.getLogger(LegacyDohResolver.class); 42 | 43 | private final String host; 44 | 45 | private int timeout; 46 | private TSIG tsig; 47 | 48 | public LegacyDohResolver(String host) { 49 | this.host = host; 50 | 51 | this.setTimeout(5); 52 | } 53 | 54 | @Override 55 | public void setPort(int port) { 56 | // Not implemented, port is part of the URI 57 | } 58 | 59 | @Override 60 | public void setTCP(boolean flag) { 61 | // Not implemented, HTTP is always TCP 62 | } 63 | 64 | @Override 65 | public void setIgnoreTruncation(boolean flag) { 66 | // Not implemented, protocol uses TCP and doesn't have truncation 67 | } 68 | 69 | @Override 70 | public void setEDNS(int level) { 71 | 72 | } 73 | 74 | @Override 75 | public void setEDNS(int level, int payloadSize, int flags, List options) { 76 | 77 | } 78 | 79 | @Override 80 | public void setTSIGKey(TSIG key) { 81 | this.tsig = key; 82 | } 83 | 84 | @Override 85 | public void setTimeout(int secs, int msecs) { 86 | this.timeout = (secs * 1000) + msecs; 87 | } 88 | 89 | @Override 90 | public void setTimeout(int secs) { 91 | setTimeout(secs, 0); 92 | } 93 | 94 | @Override 95 | public Message send(Message query) throws IOException { 96 | query = ((Message) query.clone()); 97 | if (tsig != null) { 98 | tsig.apply(query, null); 99 | } 100 | 101 | final String encoded = Base64Compat.encodeURLToString(query.toWire()); 102 | 103 | HttpURLConnection con = null; 104 | try { 105 | final URL url = new URL(host + "?dns=" + encoded); 106 | con = (HttpURLConnection) url.openConnection(); 107 | 108 | con.setRequestMethod("GET"); 109 | con.setRequestProperty("User-Agent", "Java client"); 110 | con.setRequestProperty("content-type", "application/dns-message"); 111 | con.setConnectTimeout(timeout); 112 | //con.setDoOutput(true); 113 | 114 | final int rc = con.getResponseCode(); 115 | final byte[] buf = new byte[65535]; 116 | con.getInputStream().read(buf); 117 | 118 | final Message response; 119 | if (rc >= 200 && rc < 300) { 120 | response = new Message(buf); 121 | verifyTSIG(query, response, buf, tsig); 122 | } else { 123 | response = new Message(0); 124 | response.getHeader().setRcode(Rcode.SERVFAIL); 125 | } 126 | return response; 127 | } catch (SocketTimeoutException ex) { 128 | throw new IOException( 129 | "Query " 130 | + query.getHeader().getID() 131 | + " for " 132 | + query.getQuestion().getName() 133 | + "/" 134 | + Type.string(query.getQuestion().getType()) 135 | + " timed out", 136 | ex); 137 | } finally { 138 | if (con != null) { 139 | con.disconnect(); 140 | } 141 | } 142 | } 143 | 144 | @Override 145 | public Object sendAsync(Message query, ResolverListener listener) { 146 | throw new UnsupportedOperationException("Not implemented"); 147 | } 148 | 149 | private void verifyTSIG(Message query, Message response, byte[] b, TSIG tsig) { 150 | if (tsig == null) { 151 | return; 152 | } 153 | 154 | int error = tsig.verify(response, b, query.getTSIG()); 155 | log.debug( 156 | "TSIG verify for query {}, {}/{}: {}", 157 | query.getHeader().getID(), 158 | query.getQuestion().getName(), 159 | Type.string(query.getQuestion().getType()), 160 | Rcode.TSIGstring(error)); 161 | } 162 | } -------------------------------------------------------------------------------- /src/main/java/io/github/krlvm/powertunnel/plugins/dns/DNSPlugin.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of PowerTunnel-DNS. 3 | * 4 | * PowerTunnel-DNS is free software: you can redistribute it and/or modify 5 | * it under the terms of the GNU General Public License as published by 6 | * the Free Software Foundation, either version 3 of the License, or 7 | * (at your option) any later version. 8 | * 9 | * PowerTunnel-DNS is distributed in the hope that it will be useful, 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | * GNU General Public License for more details. 13 | * 14 | * You should have received a copy of the GNU General Public License 15 | * along with PowerTunnel-DNS. If not, see . 16 | */ 17 | 18 | package io.github.krlvm.powertunnel.plugins.dns; 19 | 20 | import io.github.krlvm.powertunnel.sdk.configuration.Configuration; 21 | import io.github.krlvm.powertunnel.sdk.plugin.PowerTunnelPlugin; 22 | import io.github.krlvm.powertunnel.sdk.proxy.ProxyServer; 23 | import io.github.krlvm.powertunnel.sdk.types.PowerTunnelPlatform; 24 | import org.jetbrains.annotations.NotNull; 25 | import org.slf4j.Logger; 26 | import org.slf4j.LoggerFactory; 27 | import org.xbill.DNS.*; 28 | import org.xbill.DNS.config.AndroidResolverConfigProvider; 29 | import org.xbill.DNS.dnssec.ValidatingResolver; 30 | 31 | import java.net.InetSocketAddress; 32 | import java.net.UnknownHostException; 33 | 34 | public class DNSPlugin extends PowerTunnelPlugin { 35 | 36 | private static final Logger LOGGER = LoggerFactory.getLogger(DNSPlugin.class); 37 | 38 | @Override 39 | public void onProxyInitialization(@NotNull ProxyServer proxy) { 40 | if(!validateAndroidVersion()) return; 41 | final Configuration configuration = readConfiguration(); 42 | 43 | String dns; 44 | final DNSPreset preset; 45 | try { 46 | preset = DNSPreset.valueOf(configuration.get("dns_preset", "custom").toUpperCase()); 47 | } catch (IllegalArgumentException ex) { 48 | throw new DNSParseException("Invalid DNS Preset"); 49 | } 50 | 51 | if(preset == DNSPreset.CUSTOM) { 52 | dns = configuration.get("dns", ""); 53 | } else { 54 | dns = preset.getAddress(); 55 | } 56 | 57 | final boolean doh = dns.startsWith("https://") 58 | || (configuration.getBoolean("allow_insecure", false) && dns.startsWith("http://")); 59 | if (dns.startsWith("http://") && !doh) { 60 | throw new DNSParseException("Please, enable insecure DNS requests to use Plain-HTTP DNS Resolver"); 61 | } 62 | 63 | final boolean sec = configuration.getBoolean("dnssec", false); 64 | final boolean ignoreHosts = configuration.getBoolean("ignore_system_hosts", false); 65 | System.setProperty("dnsjava.lookup.use_hosts_file", String.valueOf(!ignoreHosts)); 66 | 67 | if (dns.endsWith("/")) { 68 | dns = dns.substring(0, dns.length() - 1); 69 | } 70 | 71 | if (getServer().getPlatform() == PowerTunnelPlatform.ANDROID) { 72 | AndroidResolverConfigProvider.dnsServers = proxy.getDNSServers(); 73 | AndroidResolverConfigProvider.domainsSearchPath = proxy.getDNSDomainsSearchPath(); 74 | } 75 | 76 | Resolver resolver = null; 77 | if(doh) { 78 | resolver = new DohResolver(dns); 79 | } else { 80 | if(!dns.isEmpty()) { 81 | if (!DNSParser.isIPv4(dns) && !DNSParser.isIPv4WithPort(dns) && !DNSParser.isIPv6(dns) && !DNSParser.isIPv6WithPort(dns)) { 82 | throw new DNSParseException("Invalid DNS address"); 83 | } 84 | String address = dns; 85 | int port = -1; 86 | if (DNSParser.hasPort(address)) { 87 | Object[] split = DNSParser.splitAddress(address); 88 | if (split != null) { 89 | address = ((String) split[0]); 90 | port = ((int) split[1]); 91 | } 92 | } 93 | try { 94 | resolver = new SimpleResolver(address); 95 | if (port != -1) resolver.setPort(port); 96 | } catch (UnknownHostException ex) { 97 | throw new RuntimeException("Failed to initialize specified DNS Resolver: " + ex.getMessage(), ex); 98 | } 99 | } 100 | if(sec) { 101 | if (resolver == null) { 102 | try { 103 | resolver = new SimpleResolver(); 104 | } catch (UnknownHostException ex) { 105 | throw new RuntimeException("Failed to initialize default DNS Resolver: " + ex.getMessage(), ex); 106 | } 107 | } 108 | resolver = new ValidatingResolver(resolver); 109 | } 110 | } 111 | 112 | if(resolver == null) return; 113 | LOGGER.info("DNS Resolver: '{}' [dnsOverHttps={}, dnsSec={}, ignoreHosts={}]", dns, doh, sec, ignoreHosts); 114 | 115 | final Resolver pResolver = resolver; 116 | registerProxyListener(new DNSListener((host, port) -> { 117 | final Lookup lookup; 118 | try { 119 | lookup = new Lookup(host, Type.A); 120 | } catch (TextParseException ex) { 121 | throw new UnknownHostException(); 122 | } 123 | lookup.setResolver(pResolver); 124 | final Record[] records = lookup.run(); 125 | if (lookup.getResult() == Lookup.SUCCESSFUL) { 126 | return new InetSocketAddress(((ARecord) records[0]).getAddress(), port); 127 | } else { 128 | throw new UnknownHostException(); 129 | } 130 | })); 131 | } 132 | 133 | private static boolean validateAndroidVersion() { 134 | try { 135 | // dnsjava uses APIs that are not available on old Android versions 136 | Class.forName("java.time.Duration"); 137 | return true; 138 | } catch (ClassNotFoundException ex) { 139 | LOGGER.error("DNS Plugin is not supported on your Android version"); 140 | return false; 141 | } 142 | } 143 | } 144 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | # 4 | # Copyright 2015 the original author or authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | ## 21 | ## Gradle start up script for UN*X 22 | ## 23 | ############################################################################## 24 | 25 | # Attempt to set APP_HOME 26 | # Resolve links: $0 may be a link 27 | PRG="$0" 28 | # Need this for relative symlinks. 29 | while [ -h "$PRG" ] ; do 30 | ls=`ls -ld "$PRG"` 31 | link=`expr "$ls" : '.*-> \(.*\)$'` 32 | if expr "$link" : '/.*' > /dev/null; then 33 | PRG="$link" 34 | else 35 | PRG=`dirname "$PRG"`"/$link" 36 | fi 37 | done 38 | SAVED="`pwd`" 39 | cd "`dirname \"$PRG\"`/" >/dev/null 40 | APP_HOME="`pwd -P`" 41 | cd "$SAVED" >/dev/null 42 | 43 | APP_NAME="Gradle" 44 | APP_BASE_NAME=`basename "$0"` 45 | 46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 48 | 49 | # Use the maximum available, or set MAX_FD != -1 to use that value. 50 | MAX_FD="maximum" 51 | 52 | warn () { 53 | echo "$*" 54 | } 55 | 56 | die () { 57 | echo 58 | echo "$*" 59 | echo 60 | exit 1 61 | } 62 | 63 | # OS specific support (must be 'true' or 'false'). 64 | cygwin=false 65 | msys=false 66 | darwin=false 67 | nonstop=false 68 | case "`uname`" in 69 | CYGWIN* ) 70 | cygwin=true 71 | ;; 72 | Darwin* ) 73 | darwin=true 74 | ;; 75 | MINGW* ) 76 | msys=true 77 | ;; 78 | NONSTOP* ) 79 | nonstop=true 80 | ;; 81 | esac 82 | 83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 84 | 85 | 86 | # Determine the Java command to use to start the JVM. 87 | if [ -n "$JAVA_HOME" ] ; then 88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 89 | # IBM's JDK on AIX uses strange locations for the executables 90 | JAVACMD="$JAVA_HOME/jre/sh/java" 91 | else 92 | JAVACMD="$JAVA_HOME/bin/java" 93 | fi 94 | if [ ! -x "$JAVACMD" ] ; then 95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 96 | 97 | Please set the JAVA_HOME variable in your environment to match the 98 | location of your Java installation." 99 | fi 100 | else 101 | JAVACMD="java" 102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 103 | 104 | Please set the JAVA_HOME variable in your environment to match the 105 | location of your Java installation." 106 | fi 107 | 108 | # Increase the maximum file descriptors if we can. 109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 110 | MAX_FD_LIMIT=`ulimit -H -n` 111 | if [ $? -eq 0 ] ; then 112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 113 | MAX_FD="$MAX_FD_LIMIT" 114 | fi 115 | ulimit -n $MAX_FD 116 | if [ $? -ne 0 ] ; then 117 | warn "Could not set maximum file descriptor limit: $MAX_FD" 118 | fi 119 | else 120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 121 | fi 122 | fi 123 | 124 | # For Darwin, add options to specify how the application appears in the dock 125 | if $darwin; then 126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 127 | fi 128 | 129 | # For Cygwin or MSYS, switch paths to Windows format before running java 130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then 131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 133 | 134 | JAVACMD=`cygpath --unix "$JAVACMD"` 135 | 136 | # We build the pattern for arguments to be converted via cygpath 137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 138 | SEP="" 139 | for dir in $ROOTDIRSRAW ; do 140 | ROOTDIRS="$ROOTDIRS$SEP$dir" 141 | SEP="|" 142 | done 143 | OURCYGPATTERN="(^($ROOTDIRS))" 144 | # Add a user-defined pattern to the cygpath arguments 145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 147 | fi 148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 149 | i=0 150 | for arg in "$@" ; do 151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 153 | 154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 156 | else 157 | eval `echo args$i`="\"$arg\"" 158 | fi 159 | i=`expr $i + 1` 160 | done 161 | case $i in 162 | 0) set -- ;; 163 | 1) set -- "$args0" ;; 164 | 2) set -- "$args0" "$args1" ;; 165 | 3) set -- "$args0" "$args1" "$args2" ;; 166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;; 167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 172 | esac 173 | fi 174 | 175 | # Escape application args 176 | save () { 177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 178 | echo " " 179 | } 180 | APP_ARGS=`save "$@"` 181 | 182 | # Collect all arguments for the java command, following the shell quoting and substitution rules 183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 184 | 185 | exec "$JAVACMD" "$@" 186 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | PowerTunnel-DNS - DNS Resolver for PowerTunnel 635 | Copyright (C) 2019-2021 krlvm 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | PowerTunnel-DNS Copyright (C) 2019-2021 krlvm 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . --------------------------------------------------------------------------------