Merge pull request #600 from SamWhited/gradle

Build system and library changes (Gradle / Subtree merging)

.gitignore

@@ -1,6 +1,38 @@
-bin/**
 .classpath
 *.swp
 .settings
+
+# https://github.com/github/gitignore/blob/master/Gradle.gitignore
+.gradle/
+build/
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# https://github.com/github/gitignore/blob/master/Android.gitignore
+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Local configuration file (sdk path, etc)
 local.properties
-gen
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+*.iml
+.idea
+
+import-summary.txt

.gitmodules

@@ -1,10 +0,0 @@
-[submodule "libs/minidns"]
-	path = libs/minidns
-	url = https://github.com/rtreffer/minidns.git
-
-[submodule "libs/openpgp-api-lib"]
-	path = libs/openpgp-api-lib
-	url = https://github.com/open-keychain/openpgp-api-lib.git
-[submodule "libs/MemorizingTrustManager"]
-	path = libs/MemorizingTrustManager
-	url = https://github.com/iNPUTmice/MemorizingTrustManager.git

.project

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>Conversations</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>

README.md

@@ -271,9 +271,26 @@ Make sure to have ANDROID_HOME point to your Android SDK
 
     git clone https://github.com/siacs/Conversations.git
     cd Conversations
-    git submodule update --init --recursive
+		./gradlew build
-    ant clean
+
-    ant debug
+### How do I update/add external libraries?
+
+If the library you want to update is in Maven Central or JCenter (or has its own
+Maven repo), add it or update its version in `build.gradle`. If the library is
+in the `libs/` directory, you can update it using a subtree merge by doing the
+following (using `minidns` as an example):
+
+    git remote add minidns https://github.com/rtreffer/minidns.git
+		git fetch minidns
+		git merge -s subtree minidns master
+
+To add a new dependency to the `libs/` directory (replacing "name", "branch" and
+"url" as necessary):
+
+    git remote add name url
+		git merge -s ours --no-commit name/branch
+		git read-tree --prefix=libs/name -u name/branch
+		git commit -m "Subtree merged in name"
 
 #### How do I debug Conversations
 

build.gradle

@@ -0,0 +1,118 @@
+// Top-level build file where you can add configuration options common to all
+// sub-projects/modules.
+buildscript {
+	repositories {
+		jcenter()
+		mavenCentral()
+	}
+	dependencies {
+		classpath 'com.android.tools.build:gradle:0.12.2'
+	}
+}
+
+allprojects {
+	repositories {
+		jcenter()
+		mavenCentral()
+	}
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+	jcenter()
+	mavenCentral()
+	maven {
+		url "http://jitsi.github.com/otr4j/repository/"
+	}
+}
+
+dependencies {
+	compile project(':libs/minidns')
+	compile project(':libs/openpgp-api-lib')
+	compile project(':libs/MemorizingTrustManager')
+	compile 'com.android.support:support-v13:19.1.0'
+	compile 'org.bouncycastle:bcprov-jdk15on:1.50'
+	compile 'net.java:otr4j:0.21'
+	compile fileTree(dir: 'libs', include: ['*.jar'])
+}
+
+android {
+	compileSdkVersion 19
+	buildToolsVersion "19.1"
+
+	defaultConfig {
+		minSdkVersion 14
+		targetSdkVersion 19
+		versionCode 32
+		versionName "0.8-alpha"
+	}
+
+	compileOptions {
+		sourceCompatibility JavaVersion.VERSION_1_7
+		targetCompatibility JavaVersion.VERSION_1_7
+	}
+
+	//
+	// To sign release builds, create the file `gradle.properties` in
+	// $HOME/.gradle or in your project directory with this content:
+	//
+	// mStoreFile=/path/to/key.store
+	// mStorePassword=xxx
+	// mKeyAlias=alias
+	// mKeyPassword=xxx
+	//
+	if (project.hasProperty('mStoreFile') &&
+			project.hasProperty('mStorePassword') &&
+			project.hasProperty('mKeyAlias') &&
+			project.hasProperty('mKeyPassword')) {
+		signingConfigs {
+			release {
+				storeFile file(mStoreFile)
+					storePassword mStorePassword
+					keyAlias mKeyAlias
+					keyPassword mKeyPassword
+			}
+		}
+		buildTypes.release.signingConfig = signingConfigs.release
+	} else {
+		buildTypes.release.signingConfig = null
+	}
+
+	buildTypes {
+		release {
+			runProguard true
+			proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+		}
+		applicationVariants.all { variant ->
+			def fileName = variant.packageApplication.outputFile.name.replace(".apk",
+					"-" + defaultConfig.versionName + ".apk")
+				variant.packageApplication.outputFile = new
+				File(variant.packageApplication.outputFile.parent, fileName)
+				if (variant.zipAlign) {
+					if (variant.name.equals('release')) {
+						variant.outputFile = new File(variant.outputFile.parent,
+								rootProject.name + "-" + defaultConfig.versionName + ".apk")
+					}
+				}
+		}
+	}
+
+	lintOptions {
+		disable 'MissingTranslation', 'InvalidPackage'
+	}
+
+	subprojects {
+
+		afterEvaluate {
+			if (getPlugins().hasPlugin('android') ||
+					getPlugins().hasPlugin('android-library')) {
+
+				configure(android.lintOptions) {
+					disable 'AndroidGradlePluginVersion', 'MissingTranslation'
+				}
+			}
+
+		}
+	}
+}

custom_rules.xml

@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project>
-
-    <target name="rename-release-with-version-number" >
-
-        <xmlproperty
-            collapseAttributes="true"
-            file="AndroidManifest.xml"
-            prefix="themanifest" />
-
-        <property
-            name="out.packaged.file"
-            location="${out.absolute.dir}/${ant.project.name}-${themanifest.manifest.android:versionName}-unsigned.apk" />
-
-        <property
-            name="out.final.file"
-            location="${out.absolute.dir}/${ant.project.name}-${themanifest.manifest.android:versionName}.apk" />
-    </target>
-
-    <target
-        name="-set-release-mode"
-        depends="rename-release-with-version-number,android_rules.-set-release-mode" >
-
-        <echo message="target: ${build.target}" >
-        </echo>
-    </target>
-
-</project>

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip

gradlew

@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

libs/MemorizingTrustManager

@@ -1 +0,0 @@
-Subproject commit fad835037adc1bd313bb56b694426fca4eb67346

libs/MemorizingTrustManager/.gitignore

@@ -0,0 +1,11 @@
+bin
+build
+gen
+local.properties
+example/bin
+example/gen
+tags
+.project
+.classpath
+.gradle
+.*.swp

libs/MemorizingTrustManager/AndroidManifest.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+	package="de.duenndns.ssl"
+	android:versionCode="1"
+	android:versionName="1.0">
+
+	<application android:label="MemorizingTrustManager">
+		<activity android:name="de.duenndns.ssl.MemorizingActivity"
+			android:theme="@android:style/Theme.Translucent.NoTitleBar" />
+	</application>
+</manifest>

libs/MemorizingTrustManager/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT license.
+
+Copyright (c) 2010 Georg Lukas <georg@op-co.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

libs/MemorizingTrustManager/README.mdwn

@@ -0,0 +1,125 @@
+# MemorizingTrustManager - Private Cloud Support for Your App
+
+MemorizingTrustManager (MTM) is a project to enable smarter and more secure use
+of SSL on Android. If it encounters an unknown SSL certificate, it asks the
+user whether to accept the certificate once, permanently or to abort the
+connection. This is a step in preventing man-in-the-middle attacks by blindly
+accepting any invalid, self-signed and/or expired certificates.
+
+MTM is aimed at providing seamless integration into your Android application,
+and the source code is available under the MIT license.
+
+## Screenshots
+
+![MemorizingTrustManager dialog](mtm-screenshot.png)
+![MemorizingTrustManager notification](mtm-notification.png)
+![MemorizingTrustManager server name dialog](mtm-servername.png)
+
+## Status
+
+MemorizingTrustManager is in production use in the
+[yaxim XMPP client](https://yaxim.org/). It is usable and easy to integrate,
+though it does not yet support hostname validation (the Java API makes it
+**hard** to integrate).
+
+## Integration
+
+MTM is easy to integrate into your own application. Follow these steps or have
+a look into the demo application in the `example` directory.
+
+### 1. Add MTM to your project
+
+Download the MTM source from GitHub, or add it as a
+[git submodule](http://git-scm.com/docs/git-submodule):
+
+	# plain download:
+	git clone https://github.com/ge0rg/MemorizingTrustManager
+	# submodule:
+	git submodule add https://github.com/ge0rg/MemorizingTrustManager
+
+Then add a library project dependency to `default.properties`:
+
+	android.library.reference.1=MemorizingTrustManager
+
+### 2. Add the MTM (popup) Activity to your manifest
+
+Edit your `AndroidManifest.xml` and add the MTM activity element right before the
+end of your closing `</application>` tag.
+
+			...
+			<activity android:name="de.duenndns.ssl.MemorizingActivity"
+				android:theme="@android:style/Theme.Translucent.NoTitleBar"
+				/>
+		</application>
+	</manifest>
+
+### 3. Hook MTM as the default TrustManager for your connection type
+
+Hooking MemorizingTrustmanager in HTTPS connections:
+
+	// register MemorizingTrustManager for HTTPS
+	SSLContext sc = SSLContext.getInstance("TLS");
+	MemorizingTrustManager mtm = new MemorizingTrustManager(this);
+	sc.init(null, new X509TrustManager[] { mtm }, new java.security.SecureRandom());
+	HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
+	HttpsURLConnection.setDefaultHostnameVerifier(
+		mtm.wrapHostnameVerifier(HttpsURLConnection.getDefaultHostnameVerifier()));
+
+
+Or, for aSmack you can use `setCustomSSLContext()`:
+
+	org.jivesoftware.smack.ConnectionConfiguration connectionConfiguration = …
+	SSLContext sc = SSLContext.getInstance("TLS");
+	MemorizingTrustManager mtm = new MemorizingTrustManager(this);
+	sc.init(null, new X509TrustManager[] { mtm }, new java.security.SecureRandom());
+	connectionConfiguration.setCustomSSLContext(sc);
+	connectionConfiguration.setHostnameVerifier(
+		mtm.wrapHostnameVerifier(new org.apache.http.conn.ssl.StrictHostnameVerifier()));
+
+By default, MTM falls back to the system `TrustManager` before asking the user.
+If you do not trust the establishment, you can enforce a dialog on *every new
+connection* by supplying a `defaultTrustManager = null` parameter to the
+constructor:
+
+	MemorizingTrustManager mtm = new MemorizingTrustManager(this, null);
+
+If you want to use a different underlying `TrustManager`, like
+[AndroidPinning](https://github.com/moxie0/AndroidPinning), just supply that to
+MTM's constructor:
+
+	X509TrustManager pinning = new PinningTrustManager(SystemKeyStore.getInstance(),
+		new String[] {"f30012bbc18c231ac1a44b788e410ce754182513"}, 0);
+	MemorizingTrustManager mtm = new MemorizingTrustManager(this, pinning);
+
+### 4. Profit!
+
+### Logging
+
+MTM uses java.util.logging (JUL) for logging purposes. If you have not
+configured a Handler for JUL, then Android will by default log all
+messages of Level.INFO or higher. In order to get also the debug log
+messages (those with Level.FINE or lower) you need to configure a
+Handler accordingly. The MTM example project contains
+de.duenndns.mtmexample.JULHandler, which allows to enable and disable
+debug logging at runtime.
+
+## Alternatives
+
+MemorizingTrustManager is not the only one out there.
+
+[**NetCipher**](https://guardianproject.info/code/netcipher/) is an Android
+library made by the [Guardian Project](https://guardianproject.info/) to
+improve network security for mobile apps. It comes with a StrongTrustManager
+to do more thorough certificate checks, an independent Root CA store, and code
+to easily route your traffic through
+[the Tor network](https://www.torproject.org/) using [Orbot](https://guardianproject.info/apps/orbot/).
+
+[**AndroidPinning**](https://github.com/moxie0/AndroidPinning) is another Android
+library, written by [Moxie Marlinspike](http://www.thoughtcrime.org/) to allow
+pinning of server certificates, improving security against government-scale
+MitM attacks. Use this if your app is made to communicate with a specific
+server!
+
+## Contribute
+
+Please [help translating MTM into more languages](https://translations.launchpad.net/yaxim/master/+pots/mtm/)!

libs/MemorizingTrustManager/ant.properties

@@ -0,0 +1,17 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked in Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+

libs/MemorizingTrustManager/build.gradle

@@ -0,0 +1,32 @@
+buildscript {
+	repositories {
+		mavenCentral()
+	}
+	dependencies {
+		classpath 'com.android.tools.build:gradle:0.7.+'
+	}
+}
+
+apply plugin: 'android-library'
+
+android {
+	compileSdkVersion 19
+	buildToolsVersion "19.1"
+	defaultConfig {
+        	minSdkVersion 7
+		targetSdkVersion 19
+	}
+
+	sourceSets {
+		main {
+			manifest.srcFile 'AndroidManifest.xml'
+			java.srcDirs = ['src']
+			resources.srcDirs = ['src']
+			aidl.srcDirs = ['src']
+			renderscript.srcDirs = ['src']
+			res.srcDirs = ['res']
+			assets.srcDirs = ['assets']
+		}
+	}
+
+}

libs/MemorizingTrustManager/build.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="MemorizingTrustManager" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>

libs/MemorizingTrustManager/example/AndroidManifest.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="de.duenndns.mtmexample"
+      android:versionCode="1"
+      android:versionName="1.0">
+      
+    <uses-sdk
+        android:minSdkVersion="3"
+        android:targetSdkVersion="19" />
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application android:label="@string/app_name" android:icon="@android:drawable/ic_lock_lock">
+        <activity
+            android:name=".MTMExample"
+            android:configChanges="keyboardHidden|orientation|screenSize|screenLayout"
+            android:label="@string/app_name" >
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+	<!-- ADD THE FOLLOWING TO YOUR MANIFEST: -->
+	<activity android:name="de.duenndns.ssl.MemorizingActivity"
+        android:theme="@android:style/Theme.Translucent.NoTitleBar" />
+    </application>
+</manifest> 

libs/MemorizingTrustManager/example/ant.properties

@@ -0,0 +1,18 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked in Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
+application.package=de.duenndns.mtmexample

libs/MemorizingTrustManager/example/build.gradle

@@ -0,0 +1,23 @@
+apply plugin: 'android'
+
+dependencies {
+	compile rootProject
+}
+
+android {
+	compileSdkVersion 19
+	buildToolsVersion "19.1"
+	defaultConfig {
+        	minSdkVersion 7
+		targetSdkVersion 19
+	}
+
+	sourceSets {
+		main {
+			manifest.srcFile 'AndroidManifest.xml'
+			java.srcDirs = ['src']
+			res.srcDirs = ['res']
+		}
+	}
+
+}

libs/MemorizingTrustManager/example/build.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="Conversations" default="help">
+<project name="MTMExample" default="help">
 
     <!-- The local.properties file is created and updated by the 'android' tool.
          It contains the path to the SDK. It should *NOT* be checked into

libs/MemorizingTrustManager/example/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

libs/MemorizingTrustManager/example/project.properties

@@ -0,0 +1,12 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+android.library.reference.1=../
+# Project target.
+target=android-19

libs/MemorizingTrustManager/example/res/layout/mtmexample.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	android:orientation="vertical"
+	android:layout_width="fill_parent"
+	android:layout_height="fill_parent" >
+	<EditText
+		android:id="@+id/url" 
+		android:layout_width="fill_parent" 
+		android:layout_height="wrap_content" 
+		android:hint="HTTPS address"
+		android:text="https://op-co.de/mtm/"
+		android:singleLine="true"
+		/>
+	<Button
+		android:id="@+id/connect" 
+		android:layout_width="fill_parent" 
+		android:layout_height="wrap_content" 
+		android:text="Connect"
+		/>
+	<TextView
+		android:id="@+id/content" 
+		android:layout_width="fill_parent" 
+		android:layout_height="wrap_content" 
+		android:layout_weight="1"
+		android:text="Please enter a HTTPS URL and press 'Connect'!"
+		android:textSize="11pt"
+		/>
+	<Button
+		android:id="@+id/manage" 
+		android:layout_width="fill_parent" 
+		android:layout_height="wrap_content" 
+		android:text="Clean up Certificates"
+		android:onClick="onManage"
+		/>
+</LinearLayout>
+

libs/MemorizingTrustManager/example/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">MemorizingTrustManager Example</string>
+</resources>

libs/MemorizingTrustManager/example/src/de/duenndns/mtmexample/JULHandler.java

@@ -0,0 +1,169 @@
+package de.duenndns.mtmexample;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.io.StringBufferInputStream;
+import java.io.StringWriter;
+import java.util.logging.Formatter;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.LogManager;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+
+import android.util.Log;
+
+/**
+ * A <code>java.util.logging</code> (JUL) Handler for Android.
+ * <p>
+ * If you want fine-grained control over MTM's logging, you can copy this
+ * class to your code base and call the static {@link #initialize()} method.
+ * </p>
+ * <p>
+ * This JUL Handler passes log messages sent to JUL to the Android log, while
+ * keeping the format and stack traces of optionally supplied Exceptions. It
+ * further allows to install a {@link DebugLogSettings} class via
+ * {@link #setDebugLogSettings(DebugLogSettings)} that determines whether JUL log messages of
+ * level {@link java.util.logging.Level#FINE} or lower are logged. This gives
+ * the application developer more control over the logged messages, while
+ * allowing a library developer to place debug log messages without risking to
+ * spam the Android log.
+ * </p>
+ * <p>
+ * If there are no {@code DebugLogSettings} configured, then all messages sent
+ * to JUL will be logged.
+ * </p>
+ * 
+ * @author Florian Schmaus
+ * 
+ */
+@SuppressWarnings("deprecation")
+public class JULHandler extends Handler {
+
+	/** Implement this interface to toggle debug logging.
+	 */
+	public interface DebugLogSettings {
+		public boolean isDebugLogEnabled();
+	}
+
+	private static final String CLASS_NAME = JULHandler.class.getName();
+
+	/**
+	 * The global LogManager configuration.
+	 * <p>
+	 * This configures:
+	 * <ul>
+	 * <li> JULHandler as the default handler for all log messages
+	 * <li> A default log level FINEST (300). Meaning that log messages of a level 300 or higher a
+	 * logged
+	 * </ul>
+	 * </p>
+	 */
+	private static final InputStream LOG_MANAGER_CONFIG = new StringBufferInputStream(
+// @formatter:off
+"handlers = " + CLASS_NAME + '\n' +
+".level = FINEST"
+);
+// @formatter:on
+
+	// Constants for Android vs. JUL debug level comparisons
+	private static final int FINE_INT = Level.FINE.intValue();
+	private static final int INFO_INT = Level.INFO.intValue();
+	private static final int WARN_INT = Level.WARNING.intValue();
+	private static final int SEVE_INT = Level.SEVERE.intValue();
+
+	private static final Logger LOGGER = Logger.getLogger(CLASS_NAME);
+
+	/** A formatter that creates output similar to Android's Log.x. */
+	private static final Formatter FORMATTER = new Formatter() {
+		@Override
+		public String format(LogRecord logRecord) {
+			Throwable thrown = logRecord.getThrown();
+			if (thrown != null) {
+				StringWriter sw = new StringWriter();
+				PrintWriter pw = new PrintWriter(sw, false);
+				pw.write(logRecord.getMessage() + ' ');
+				thrown.printStackTrace(pw);
+				pw.flush();
+				return sw.toString();
+			} else {
+				return logRecord.getMessage();
+			}
+		}
+	};
+
+	private static DebugLogSettings sDebugLogSettings;
+	private static boolean initialized = false;
+
+	public static void initialize() {
+		try {
+			LogManager.getLogManager().readConfiguration(LOG_MANAGER_CONFIG);
+			initialized = true;
+		} catch (IOException e) {
+			Log.e("JULHandler", "Can not initialize configuration", e);
+		}
+		if (initialized) LOGGER.info("Initialzied java.util.logging logger");
+	}
+
+	public static void setDebugLogSettings(DebugLogSettings debugLogSettings) {
+		if (!isInitialized()) initialize();
+		sDebugLogSettings = debugLogSettings;
+	}
+
+	public static boolean isInitialized() {
+		return initialized;
+	}
+
+	public JULHandler() {
+		setFormatter(FORMATTER);
+	}
+
+	@Override
+	public void close() {}
+
+	@Override
+	public void flush() {}
+
+	@Override
+	public boolean isLoggable(LogRecord record) {
+		final boolean debugLog = sDebugLogSettings == null ? true : sDebugLogSettings
+				.isDebugLogEnabled();
+
+		if (record.getLevel().intValue() <= FINE_INT) {
+			return debugLog;
+		}
+		return true;
+	}
+
+	/** JUL method that forwards log records to Android's LogCat. */
+	@Override
+	public void publish(LogRecord record) {
+		if (!isLoggable(record)) return;
+
+		final int priority = getAndroidPriority(record.getLevel());
+		final String tag = substringAfterLastDot(record.getSourceClassName());
+		final String msg = getFormatter().format(record);
+
+		Log.println(priority, tag, msg);
+	}
+
+	/** Helper to convert JUL verbosity levels to Android's Log. */
+	private static int getAndroidPriority(Level level) {
+		int value = level.intValue();
+		if (value >= SEVE_INT) {
+			return Log.ERROR;
+		} else if (value >= WARN_INT) {
+			return Log.WARN;
+		} else if (value >= INFO_INT) {
+			return Log.INFO;
+		} else {
+			return Log.DEBUG;
+		}
+	}
+
+	/** Helper to extract short class names. */
+	private static String substringAfterLastDot(String s) {
+		return s.substring(s.lastIndexOf('.') + 1).trim();
+	}
+}

libs/MemorizingTrustManager/example/src/de/duenndns/mtmexample/MTMExample.java

@@ -0,0 +1,143 @@
+package de.duenndns.mtmexample;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.Window;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import java.net.URL;
+import java.security.KeyStoreException;
+import java.util.ArrayList;
+import java.util.Collections;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.X509TrustManager;
+
+import de.duenndns.ssl.MemorizingTrustManager;
+
+/**
+ * Example to demonstrate the use of MemorizingTrustManager on HTTPS
+ * sockets.
+ */
+public class MTMExample extends Activity implements OnClickListener
+{
+	MemorizingTrustManager mtm;
+	
+	TextView content;
+	HostnameVerifier defaultverifier;
+	EditText urlinput;
+	String text;
+	Handler hdlr;
+
+	/** Creates the Activity and registers a MemorizingTrustManager. */
+	@Override
+	public void onCreate(Bundle savedInstanceState)
+	{
+		super.onCreate(savedInstanceState);
+		JULHandler.initialize();
+		requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
+		setContentView(R.layout.mtmexample);
+
+
+		// set up gui elements
+		findViewById(R.id.connect).setOnClickListener(this);
+		content = (TextView)findViewById(R.id.content);
+		urlinput = (EditText)findViewById(R.id.url);
+
+		// register handler for background thread
+		hdlr = new Handler();
+
+		// Here, the MemorizingTrustManager is activated for HTTPS
+		try {
+			// set location of the keystore
+			MemorizingTrustManager.setKeyStoreFile("private", "sslkeys.bks");
+
+			// register MemorizingTrustManager for HTTPS
+			SSLContext sc = SSLContext.getInstance("TLS");
+			mtm = new MemorizingTrustManager(this);
+			sc.init(null, new X509TrustManager[] { mtm },
+					new java.security.SecureRandom());
+			HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
+			HttpsURLConnection.setDefaultHostnameVerifier(
+					mtm.wrapHostnameVerifier(HttpsURLConnection.getDefaultHostnameVerifier()));
+
+			// disable redirects to reduce possible confusion
+			HttpsURLConnection.setFollowRedirects(false);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	/** Updates the screen content from a background thread. */
+	void setText(final String s, final boolean progress) {
+		text = s;
+		hdlr.post(new Runnable() {
+			public void run() {
+				content.setText(s);
+				setProgressBarIndeterminateVisibility(progress);
+			}
+		});
+	}
+
+	/** Spawns a new thread connecting to the specified URL.
+	 * The result of the request is displayed on the screen.
+	 * @param urlString a HTTPS URL to connect to.
+	 */
+	void connect(final String urlString) {
+		new Thread() {
+			public void run() {
+				try {
+					URL u = new URL(urlString);
+					HttpsURLConnection c = (HttpsURLConnection)u.openConnection();
+					c.connect();
+					setText("" + c.getResponseCode() + " "
+							+ c.getResponseMessage(), false);
+					c.disconnect();
+				} catch (Exception e) {
+					setText(e.toString(), false);
+					e.printStackTrace();
+				}
+			}
+		}.start();
+	}
+
+	/** Reacts on the connect Button press. */
+	@Override
+	public void onClick(View view) {
+		String url = urlinput.getText().toString();
+		setText("Loading " + url, true);
+		setProgressBarIndeterminateVisibility(true);
+		connect(url);
+	}
+	
+	/** React on the "Manage Certificates" button press. */
+	public void onManage(View view) {
+		final ArrayList<String> aliases = Collections.list(mtm.getCertificates());
+		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.select_dialog_item, aliases);
+		new AlertDialog.Builder(this).setTitle("Tap Certificate to Delete")
+				.setNegativeButton(android.R.string.cancel, null)
+				.setAdapter(adapter, new DialogInterface.OnClickListener() {
+						@Override
+						public void onClick(DialogInterface dialog, int which) {
+							try {
+								String alias = aliases.get(which);
+								mtm.deleteCertificate(alias);
+								setText("Deleted " + alias, false);
+							} catch (KeyStoreException e) {
+								e.printStackTrace();
+								setText("Error: " + e.getLocalizedMessage(), false);
+							}
+						}
+					})
+				.create().show();
+	}
+}

libs/MemorizingTrustManager/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

libs/MemorizingTrustManager/project.properties

@@ -0,0 +1,12 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+android.library=true
+# Project target.
+target=android-19

libs/MemorizingTrustManager/res/values-de/strings.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Unbekanntes Zertifikat akzeptieren?</string>
+    <string name="mtm_trust_anchor">Das Serverzertifikat stammt nicht von einer bekannten Ausstellungsstelle (CA).</string>
+    <string name="mtm_cert_expired">The server certificate is expired.</string>
+    <string name="mtm_accept_servername">Abweichenden Servernamen akzeptieren?</string>
+    <string name="mtm_hostname_mismatch">Der Server konnte sich nicht als \"%s\" ausweisen. Das Zertifikat gilt nur für:</string>
+
+    <string name="mtm_connect_anyway">Verbindung trotzdem aufbauen?</string>
+    <string name="mtm_cert_details">Zertifikat-Details:</string>
+
+    <string name="mtm_decision_always">Immer</string>
+    <string name="mtm_decision_once">Einmal</string>
+    <string name="mtm_decision_abort">Abbrechen</string>
+
+    <string name="mtm_notification">Zertifikatsprüfung</string>
+</resources>

libs/MemorizingTrustManager/res/values-es/strings.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">¿Aceptar certicado desconocido?</string>
+    <string name="mtm_trust_anchor">El certificado del servidor no está firmado por una Autoridad Conocida (CA).</string>
+    <string name="mtm_cert_expired">The server certificate is expired.</string>
+    <string name="mtm_accept_servername">¿Aceptar discordancia en nombre del servidor?</string>
+    <string name="mtm_hostname_mismatch">El servidor no ha podido autenticarte como \"%s\". El certificado es solo válido para:</string>
+
+    <string name="mtm_connect_anyway">¿Quieres conectar de todas formas?</string>
+    <string name="mtm_cert_details">Detalle del certificado:</string>
+
+    <string name="mtm_decision_always">Siempre</string>
+    <string name="mtm_decision_once">Una vez</string>
+    <string name="mtm_decision_abort">Abortar</string>
+
+    <string name="mtm_notification">Verificación de Certificado</string>
+</resources>

libs/MemorizingTrustManager/res/values-eu/strings.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Ziurtagiri ezezaguna onartu?</string>
+    <string name="mtm_trust_anchor">Zerbitzariaren ziurtagiria ez dago Ziurtagiri-emaile Autoritate ezagun batez sinatuta.</string>
+    <string name="mtm_cert_expired">Zerbitzariaren ziurtagiria iraungi da.</string>
+    <string name="mtm_accept_servername">Zerbitzariaren izeneko desadostasuna onartu?</string>
+    <string name="mtm_hostname_mismatch">Zerbitzaria ezin izan da \&quot;%s\&quot; bezala autentifikatu. Ziurtagiria soilik honetarako baliagarria da:</string>
+
+    <string name="mtm_connect_anyway">Konektatu hala ere?</string>
+    <string name="mtm_cert_details">Ziurtagiriaren xehetasunak:</string>
+
+    <string name="mtm_decision_always">Beti</string>
+    <string name="mtm_decision_once">Behin</string>
+    <string name="mtm_decision_abort">Utzi</string>
+
+    <string name="mtm_notification">Ziurtagiriaren egiaztapena</string>
+</resources>

libs/MemorizingTrustManager/res/values-fi/strings.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Hyväksytäänkö palvelimen antama tuntematon varmenne?</string>
+    <string name="mtm_trust_anchor">Palvelimen varmenne ei ole tunnetun varmentajan (CA) allekirjoittama.</string>
+    <string name="mtm_accept_servername">Sallitaanko palvelimen nimi, joka ei vastaa varmeenteessa olevaa nimeä?</string>
+    <string name="mtm_hostname_mismatch">Palvelimella ei ole varmennetta nimelle \"%s\". Varmenteen sisältämät nimet:</string>
+
+    <string name="mtm_connect_anyway">Haluatko jatkaa yhteyden muodostamista?</string>
+    <string name="mtm_cert_details">Sertifikaatin tiedot:</string>
+
+    <string name="mtm_decision_always">Aina</string>
+    <string name="mtm_decision_once">Kerran</string>
+    <string name="mtm_decision_abort">Keskeytä</string>
+
+    <string name="mtm_notification">Varmenteen tarkistus</string>
+</resources>

libs/MemorizingTrustManager/res/values-fr/strings.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Accept Unknown Certificate?</string>
+    <string name="mtm_trust_anchor">Le certificat du serveur n’est pas signé par une Autorité de Certification reconnue.</string>
+    <string name="mtm_accept_servername">Accept Mismatching Server Name?</string>
+    <string name="mtm_hostname_mismatch">Server could not authenticate as \"%s\". The certificate is only valid for:</string>
+
+    <string name="mtm_connect_anyway">Do you want to connect anyway?</string>
+    <string name="mtm_cert_details">Détails du certificat :</string>
+
+    <string name="mtm_decision_always">Toujours</string>
+    <string name="mtm_decision_once">Une seule fois</string>
+    <string name="mtm_decision_abort">Annuler</string>
+
+    <string name="mtm_notification">Certificate Verification</string>
+</resources>

libs/MemorizingTrustManager/res/values-no/strings.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Godta ukjent sertifikat?</string>
+    <string name="mtm_trust_anchor">Sertifikatet er ikke utstilt av en kjent utstiller (CA).</string>
+    <string name="mtm_accept_servername">Godta feil servernavn?</string>
+    <string name="mtm_hostname_mismatch">Serveren heter ikke \"%s\". Sertifikatet gjelder bare for: </string>
+
+    <string name="mtm_connect_anyway">Vil du bruke serveren likevel?</string>
+    <string name="mtm_cert_details">Sertifikatdetaljer:</string>
+
+    <string name="mtm_decision_always">Alltid</string>
+    <string name="mtm_decision_once">En gang</string>
+    <string name="mtm_decision_abort">Avbryt</string>
+
+    <string name="mtm_notification">Sertifikat-sjekk</string>
+</resources>

libs/MemorizingTrustManager/res/values/strings.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="mtm_accept_cert">Accept Unknown Certificate?</string>
+    <string name="mtm_trust_anchor">The server certificate is not signed by a known Certificate Authority.</string>
+    <string name="mtm_cert_expired">The server certificate is expired.</string>
+    <string name="mtm_accept_servername">Accept Mismatching Server Name?</string>
+    <string name="mtm_hostname_mismatch">Server could not authenticate as \&quot;%s\&quot;. The certificate is only valid for:</string>
+
+    <string name="mtm_connect_anyway">Do you want to connect anyway?</string>
+    <string name="mtm_cert_details">Certificate details:</string>
+
+    <string name="mtm_decision_always">Always</string>
+    <string name="mtm_decision_once">Once</string>
+    <string name="mtm_decision_abort">Abort</string>
+
+    <string name="mtm_notification">Certificate Verification</string>
+</resources>

libs/MemorizingTrustManager/settings.gradle

@@ -0,0 +1 @@
+include ':example'

libs/MemorizingTrustManager/src/de/duenndns/ssl/MTMDecision.java

@@ -0,0 +1,33 @@
+/* MemorizingTrustManager - a TrustManager which asks the user about invalid
+ *  certificates and memorizes their decision.
+ *
+ * Copyright (c) 2010 Georg Lukas <georg@op-co.de>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package de.duenndns.ssl;
+
+class MTMDecision {
+	public final static int DECISION_INVALID	= 0;
+	public final static int DECISION_ABORT		= 1;
+	public final static int DECISION_ONCE		= 2;
+	public final static int DECISION_ALWAYS	= 3;
+
+	int state = DECISION_INVALID;
+}

libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingActivity.java

@@ -0,0 +1,103 @@
+/* MemorizingTrustManager - a TrustManager which asks the user about invalid
+ *  certificates and memorizes their decision.
+ *
+ * Copyright (c) 2010 Georg Lukas <georg@op-co.de>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package de.duenndns.ssl;
+
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.*;
+import android.content.Intent;
+import android.os.Bundle;
+
+public class MemorizingActivity extends Activity
+		implements OnClickListener,OnCancelListener {
+
+	private final static Logger LOGGER = Logger.getLogger(MemorizingActivity.class.getName());
+
+	int decisionId;
+
+	AlertDialog dialog;
+	
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		LOGGER.log(Level.FINE, "onCreate");
+		super.onCreate(savedInstanceState);
+	}
+
+	@Override
+	public void onResume() {
+		super.onResume();
+		Intent i = getIntent();
+		decisionId = i.getIntExtra(MemorizingTrustManager.DECISION_INTENT_ID, MTMDecision.DECISION_INVALID);
+		int titleId = i.getIntExtra(MemorizingTrustManager.DECISION_TITLE_ID, R.string.mtm_accept_cert);
+		String cert = i.getStringExtra(MemorizingTrustManager.DECISION_INTENT_CERT);
+		LOGGER.log(Level.FINE, "onResume with " + i.getExtras() + " decId=" + decisionId + " data: " + i.getData());
+		dialog = new AlertDialog.Builder(this).setTitle(titleId)
+			.setMessage(cert)
+			.setPositiveButton(R.string.mtm_decision_always, this)
+			.setNeutralButton(R.string.mtm_decision_once, this)
+			.setNegativeButton(R.string.mtm_decision_abort, this)
+			.setOnCancelListener(this)
+			.create();
+		dialog.show();
+	}
+
+	@Override
+	protected void onPause() {
+		if (dialog.isShowing())
+			dialog.dismiss();
+		super.onPause();
+	}
+
+	void sendDecision(int decision) {
+		LOGGER.log(Level.FINE, "Sending decision: " + decision);
+		MemorizingTrustManager.interactResult(decisionId, decision);
+		finish();
+	}
+
+	// react on AlertDialog button press
+	public void onClick(DialogInterface dialog, int btnId) {
+		int decision;
+		dialog.dismiss();
+		switch (btnId) {
+		case DialogInterface.BUTTON_POSITIVE:
+			decision = MTMDecision.DECISION_ALWAYS;
+			break;
+		case DialogInterface.BUTTON_NEUTRAL:
+			decision = MTMDecision.DECISION_ONCE;
+			break;
+		default:
+			decision = MTMDecision.DECISION_ABORT;
+		}
+		sendDecision(decision);
+	}
+
+	public void onCancel(DialogInterface dialog) {
+		sendDecision(MTMDecision.DECISION_ABORT);
+	}
+}

libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java

@@ -0,0 +1,735 @@
+/* MemorizingTrustManager - a TrustManager which asks the user about invalid
+ *  certificates and memorizes their decision.
+ *
+ * Copyright (c) 2010 Georg Lukas <georg@op-co.de>
+ *
+ * MemorizingTrustManager.java contains the actual trust manager and interface
+ * code to create a MemorizingActivity and obtain the results.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package de.duenndns.ssl;
+
+import android.app.Activity;
+import android.app.Application;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.util.SparseArray;
+import android.os.Handler;
+
+import java.io.File;
+import java.io.IOException;
+import java.security.cert.*;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.MessageDigest;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.text.SimpleDateFormat;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Locale;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLSession;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.TrustManagerFactory;
+import javax.net.ssl.X509TrustManager;
+
+/**
+ * A X509 trust manager implementation which asks the user about invalid
+ * certificates and memorizes their decision.
+ * <p>
+ * The certificate validity is checked using the system default X509
+ * TrustManager, creating a query Dialog if the check fails.
+ * <p>
+ * <b>WARNING:</b> This only works if a dedicated thread is used for
+ * opening sockets!
+ */
+public class MemorizingTrustManager implements X509TrustManager {
+	final static String DECISION_INTENT = "de.duenndns.ssl.DECISION";
+	final static String DECISION_INTENT_ID     = DECISION_INTENT + ".decisionId";
+	final static String DECISION_INTENT_CERT   = DECISION_INTENT + ".cert";
+	final static String DECISION_INTENT_CHOICE = DECISION_INTENT + ".decisionChoice";
+
+	private final static Logger LOGGER = Logger.getLogger(MemorizingTrustManager.class.getName());
+	final static String DECISION_TITLE_ID      = DECISION_INTENT + ".titleId";
+	private final static int NOTIFICATION_ID = 100509;
+
+	final static String NO_TRUST_ANCHOR = "Trust anchor for certification path not found.";
+	
+	static String KEYSTORE_DIR = "KeyStore";
+	static String KEYSTORE_FILE = "KeyStore.bks";
+
+	Context master;
+	Activity foregroundAct;
+	NotificationManager notificationManager;
+	private static int decisionId = 0;
+	private static SparseArray<MTMDecision> openDecisions = new SparseArray<MTMDecision>();
+
+	Handler masterHandler;
+	private File keyStoreFile;
+	private KeyStore appKeyStore;
+	private X509TrustManager defaultTrustManager;
+	private X509TrustManager appTrustManager;
+
+	/** Creates an instance of the MemorizingTrustManager class that falls back to a custom TrustManager.
+	 *
+	 * You need to supply the application context. This has to be one of:
+	 *    - Application
+	 *    - Activity
+	 *    - Service
+	 *
+	 * The context is used for file management, to display the dialog /
+	 * notification and for obtaining translated strings.
+	 *
+	 * @param m Context for the application.
+	 * @param defaultTrustManager Delegate trust management to this TM. If null, the user must accept every certificate.
+	 */
+	public MemorizingTrustManager(Context m, X509TrustManager defaultTrustManager) {
+		init(m);
+		this.appTrustManager = getTrustManager(appKeyStore);
+		this.defaultTrustManager = defaultTrustManager;
+	}
+
+	/** Creates an instance of the MemorizingTrustManager class using the system X509TrustManager.
+	 *
+	 * You need to supply the application context. This has to be one of:
+	 *    - Application
+	 *    - Activity
+	 *    - Service
+	 *
+	 * The context is used for file management, to display the dialog /
+	 * notification and for obtaining translated strings.
+	 *
+	 * @param m Context for the application.
+	 */
+	public MemorizingTrustManager(Context m) {
+		init(m);
+		this.appTrustManager = getTrustManager(appKeyStore);
+		this.defaultTrustManager = getTrustManager(null);
+	}
+
+	void init(Context m) {
+		master = m;
+		masterHandler = new Handler(m.getMainLooper());
+		notificationManager = (NotificationManager)master.getSystemService(Context.NOTIFICATION_SERVICE);
+
+		Application app;
+		if (m instanceof Application) {
+			app = (Application)m;
+		} else if (m instanceof Service) {
+			app = ((Service)m).getApplication();
+		} else if (m instanceof Activity) {
+			app = ((Activity)m).getApplication();
+		} else throw new ClassCastException("MemorizingTrustManager context must be either Activity or Service!");
+
+		File dir = app.getDir(KEYSTORE_DIR, Context.MODE_PRIVATE);
+		keyStoreFile = new File(dir + File.separator + KEYSTORE_FILE);
+
+		appKeyStore = loadAppKeyStore();
+	}
+
+	
+	/**
+	 * Returns a X509TrustManager list containing a new instance of
+	 * TrustManagerFactory.
+	 *
+	 * This function is meant for convenience only. You can use it
+	 * as follows to integrate TrustManagerFactory for HTTPS sockets:
+	 *
+	 * <pre>
+	 *     SSLContext sc = SSLContext.getInstance("TLS");
+	 *     sc.init(null, MemorizingTrustManager.getInstanceList(this),
+	 *         new java.security.SecureRandom());
+	 *     HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
+	 * </pre>
+	 * @param c Activity or Service to show the Dialog / Notification
+	 */
+	public static X509TrustManager[] getInstanceList(Context c) {
+		return new X509TrustManager[] { new MemorizingTrustManager(c) };
+	}
+
+	/**
+	 * Binds an Activity to the MTM for displaying the query dialog.
+	 *
+	 * This is useful if your connection is run from a service that is
+	 * triggered by user interaction -- in such cases the activity is
+	 * visible and the user tends to ignore the service notification.
+	 *
+	 * You should never have a hidden activity bound to MTM! Use this
+	 * function in onResume() and @see unbindDisplayActivity in onPause().
+	 *
+	 * @param act Activity to be bound
+	 */
+	public void bindDisplayActivity(Activity act) {
+		foregroundAct = act;
+	}
+
+	/**
+	 * Removes an Activity from the MTM display stack.
+	 *
+	 * Always call this function when the Activity added with
+	 * {@link #bindDisplayActivity(Activity)} is hidden.
+	 *
+	 * @param act Activity to be unbound
+	 */
+	public void unbindDisplayActivity(Activity act) {
+		// do not remove if it was overridden by a different activity
+		if (foregroundAct == act)
+			foregroundAct = null;
+	}
+
+	/**
+	 * Changes the path for the KeyStore file.
+	 *
+	 * The actual filename relative to the app's directory will be
+	 * <code>app_<i>dirname</i>/<i>filename</i></code>.
+	 *
+	 * @param dirname directory to store the KeyStore.
+	 * @param filename file name for the KeyStore.
+	 */
+	public static void setKeyStoreFile(String dirname, String filename) {
+		KEYSTORE_DIR = dirname;
+		KEYSTORE_FILE = filename;
+	}
+
+	/**
+	 * Get a list of all certificate aliases stored in MTM.
+	 *
+	 * @return an {@link Enumeration} of all certificates
+	 */
+	public Enumeration<String> getCertificates() {
+		try {
+			return appKeyStore.aliases();
+		} catch (KeyStoreException e) {
+			// this should never happen, however...
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * Get a certificate for a given alias.
+	 *
+	 * @param alias the certificate's alias as returned by {@link #getCertificates()}.
+	 *
+	 * @return the certificate associated with the alias or <tt>null</tt> if none found.
+	 */
+	public Certificate getCertificate(String alias) {
+		try {
+			return appKeyStore.getCertificate(alias);
+		} catch (KeyStoreException e) {
+			// this should never happen, however...
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * Removes the given certificate from MTMs key store.
+	 *
+	 * <p>
+	 * <b>WARNING</b>: this does not immediately invalidate the certificate. It is
+	 * well possible that (a) data is transmitted over still existing connections or
+	 * (b) new connections are created using TLS renegotiation, without a new cert
+	 * check.
+	 * </p>
+	 * @param alias the certificate's alias as returned by {@link #getCertificates()}.
+	 *
+	 * @throws KeyStoreException if the certificate could not be deleted.
+	 */
+	public void deleteCertificate(String alias) throws KeyStoreException {
+		appKeyStore.deleteEntry(alias);
+		keyStoreUpdated();
+	}
+
+	/**
+	 * Creates a new hostname verifier supporting user interaction.
+	 *
+	 * <p>This method creates a new {@link HostnameVerifier} that is bound to
+	 * the given instance of {@link MemorizingTrustManager}, and leverages an
+	 * existing {@link HostnameVerifier}. The returned verifier performs the
+	 * following steps, returning as soon as one of them succeeds:
+	 *  </p>
+	 *  <ol>
+	 *  <li>Success, if the wrapped defaultVerifier accepts the certificate.</li>
+	 *  <li>Success, if the server certificate is stored in the keystore under the given hostname.</li>
+	 *  <li>Ask the user and return accordingly.</li>
+	 *  <li>Failure on exception.</li>
+	 *  </ol>
+	 *
+	 * @param defaultVerifier the {@link HostnameVerifier} that should perform the actual check
+	 * @return a new hostname verifier using the MTM's key store
+	 *
+	 * @throws IllegalArgumentException if the defaultVerifier parameter is null
+	 */
+	public HostnameVerifier wrapHostnameVerifier(final HostnameVerifier defaultVerifier) {
+		if (defaultVerifier == null)
+			throw new IllegalArgumentException("The default verifier may not be null");
+		
+		return new MemorizingHostnameVerifier(defaultVerifier);
+	}
+	
+	public HostnameVerifier wrapHostnameVerifierNonInteractive(final HostnameVerifier defaultVerifier) {
+		if (defaultVerifier == null)
+			throw new IllegalArgumentException("The default verifier may not be null");
+		
+		return new NonInteractiveMemorizingHostnameVerifier(defaultVerifier);
+	}
+	
+	X509TrustManager getTrustManager(KeyStore ks) {
+		try {
+			TrustManagerFactory tmf = TrustManagerFactory.getInstance("X509");
+			tmf.init(ks);
+			for (TrustManager t : tmf.getTrustManagers()) {
+				if (t instanceof X509TrustManager) {
+					return (X509TrustManager)t;
+				}
+			}
+		} catch (Exception e) {
+			// Here, we are covering up errors. It might be more useful
+			// however to throw them out of the constructor so the
+			// embedding app knows something went wrong.
+			LOGGER.log(Level.SEVERE, "getTrustManager(" + ks + ")", e);
+		}
+		return null;
+	}
+
+	KeyStore loadAppKeyStore() {
+		KeyStore ks;
+		try {
+			ks = KeyStore.getInstance(KeyStore.getDefaultType());
+		} catch (KeyStoreException e) {
+			LOGGER.log(Level.SEVERE, "getAppKeyStore()", e);
+			return null;
+		}
+		try {
+			ks.load(null, null);
+			ks.load(new java.io.FileInputStream(keyStoreFile), "MTM".toCharArray());
+		} catch (java.io.FileNotFoundException e) {
+			LOGGER.log(Level.INFO, "getAppKeyStore(" + keyStoreFile + ") - file does not exist");
+		} catch (Exception e) {
+			LOGGER.log(Level.SEVERE, "getAppKeyStore(" + keyStoreFile + ")", e);
+		}
+		return ks;
+	}
+
+	void storeCert(String alias, Certificate cert) {
+		try {
+			appKeyStore.setCertificateEntry(alias, cert);
+		} catch (KeyStoreException e) {
+			LOGGER.log(Level.SEVERE, "storeCert(" + cert + ")", e);
+			return;
+		}		
+		keyStoreUpdated();
+	}
+	
+	void storeCert(X509Certificate cert) {
+		storeCert(cert.getSubjectDN().toString(), cert);
+	}
+
+	void keyStoreUpdated() {
+		// reload appTrustManager
+		appTrustManager = getTrustManager(appKeyStore);
+
+		// store KeyStore to file
+		java.io.FileOutputStream fos = null;
+		try {
+			fos = new java.io.FileOutputStream(keyStoreFile);
+			appKeyStore.store(fos, "MTM".toCharArray());
+		} catch (Exception e) {
+			LOGGER.log(Level.SEVERE, "storeCert(" + keyStoreFile + ")", e);
+		} finally {
+			if (fos != null) {
+				try {
+					fos.close();
+				} catch (IOException e) {
+					LOGGER.log(Level.SEVERE, "storeCert(" + keyStoreFile + ")", e);
+				}
+			}
+		}
+	}
+
+	// if the certificate is stored in the app key store, it is considered "known"
+	private boolean isCertKnown(X509Certificate cert) {
+		try {
+			return appKeyStore.getCertificateAlias(cert) != null;
+		} catch (KeyStoreException e) {
+			return false;
+		}
+	}
+
+	private boolean isExpiredException(Throwable e) {
+		do {
+			if (e instanceof CertificateExpiredException)
+				return true;
+			e = e.getCause();
+		} while (e != null);
+		return false;
+	}
+
+	public void checkCertTrusted(X509Certificate[] chain, String authType, boolean isServer, boolean interactive)
+		throws CertificateException
+	{
+		LOGGER.log(Level.FINE, "checkCertTrusted(" + chain + ", " + authType + ", " + isServer + ")");
+		try {
+			LOGGER.log(Level.FINE, "checkCertTrusted: trying appTrustManager");
+			if (isServer)
+				appTrustManager.checkServerTrusted(chain, authType);
+			else
+				appTrustManager.checkClientTrusted(chain, authType);
+		} catch (CertificateException ae) {
+			LOGGER.log(Level.FINER, "checkCertTrusted: appTrustManager failed", ae);
+			// if the cert is stored in our appTrustManager, we ignore expiredness
+			if (isExpiredException(ae)) {
+				LOGGER.log(Level.INFO, "checkCertTrusted: accepting expired certificate from keystore");
+				return;
+			}
+			if (isCertKnown(chain[0])) {
+				LOGGER.log(Level.INFO, "checkCertTrusted: accepting cert already stored in keystore");
+				return;
+			}
+			try {
+				if (defaultTrustManager == null)
+					throw ae;
+				LOGGER.log(Level.FINE, "checkCertTrusted: trying defaultTrustManager");
+				if (isServer)
+					defaultTrustManager.checkServerTrusted(chain, authType);
+				else
+					defaultTrustManager.checkClientTrusted(chain, authType);
+			} catch (CertificateException e) {
+				e.printStackTrace();
+				if (interactive) {
+					interactCert(chain, authType, e);
+				} else {
+					throw e;
+				}
+			}
+		}
+	}
+
+	public void checkClientTrusted(X509Certificate[] chain, String authType)
+		throws CertificateException
+	{
+		checkCertTrusted(chain, authType, false,true);
+	}
+
+	public void checkServerTrusted(X509Certificate[] chain, String authType)
+		throws CertificateException
+	{
+		checkCertTrusted(chain, authType, true,true);
+	}
+
+	public X509Certificate[] getAcceptedIssuers()
+	{
+		LOGGER.log(Level.FINE, "getAcceptedIssuers()");
+		return defaultTrustManager.getAcceptedIssuers();
+	}
+
+	private int createDecisionId(MTMDecision d) {
+		int myId;
+		synchronized(openDecisions) {
+			myId = decisionId;
+			openDecisions.put(myId, d);
+			decisionId += 1;
+		}
+		return myId;
+	}
+
+	private static String hexString(byte[] data) {
+		StringBuffer si = new StringBuffer();
+		for (int i = 0; i < data.length; i++) {
+			si.append(String.format("%02x", data[i]));
+			if (i < data.length - 1)
+				si.append(":");
+		}
+		return si.toString();
+	}
+
+	private static String certHash(final X509Certificate cert, String digest) {
+		try {
+			MessageDigest md = MessageDigest.getInstance(digest);
+			md.update(cert.getEncoded());
+			return hexString(md.digest());
+		} catch (java.security.cert.CertificateEncodingException e) {
+			return e.getMessage();
+		} catch (java.security.NoSuchAlgorithmException e) {
+			return e.getMessage();
+		}
+	}
+
+	private void certDetails(StringBuffer si, X509Certificate c) {
+		SimpleDateFormat validityDateFormater = new SimpleDateFormat("yyyy-MM-dd");
+		si.append("\n");
+		si.append(c.getSubjectDN().toString());
+		si.append("\n");
+		si.append(validityDateFormater.format(c.getNotBefore()));
+		si.append(" - ");
+		si.append(validityDateFormater.format(c.getNotAfter()));
+		si.append("\nSHA-256: ");
+		si.append(certHash(c, "SHA-256"));
+		si.append("\nSHA-1: ");
+		si.append(certHash(c, "SHA-1"));
+		si.append("\nSigned by: ");
+		si.append(c.getIssuerDN().toString());
+		si.append("\n");
+	}
+	
+	private String certChainMessage(final X509Certificate[] chain, CertificateException cause) {
+		Throwable e = cause;
+		LOGGER.log(Level.FINE, "certChainMessage for " + e);
+		StringBuffer si = new StringBuffer();
+		if (e.getCause() != null) {
+			e = e.getCause();
+			// HACK: there is no sane way to check if the error is a "trust anchor
+			// not found", so we use string comparison.
+			if (NO_TRUST_ANCHOR.equals(e.getMessage())) {
+				si.append(master.getString(R.string.mtm_trust_anchor));
+			} else
+				si.append(e.getLocalizedMessage());
+			si.append("\n");
+		}
+		si.append("\n");
+		si.append(master.getString(R.string.mtm_connect_anyway));
+		si.append("\n\n");
+		si.append(master.getString(R.string.mtm_cert_details));
+		for (X509Certificate c : chain) {
+			certDetails(si, c);
+		}
+		return si.toString();
+	}
+
+	private String hostNameMessage(X509Certificate cert, String hostname) {
+		StringBuffer si = new StringBuffer();
+
+		si.append(master.getString(R.string.mtm_hostname_mismatch, hostname));
+		si.append("\n\n");
+		try {
+			Collection<List<?>> sans = cert.getSubjectAlternativeNames();
+			if (sans == null) {
+				si.append(cert.getSubjectDN());
+				si.append("\n");
+			} else for (List<?> altName : sans) {
+				Object name = altName.get(1);
+				if (name instanceof String) {
+					si.append("[");
+					si.append((Integer)altName.get(0));
+					si.append("] ");
+					si.append(name);
+					si.append("\n");
+				}
+			}
+		} catch (CertificateParsingException e) {
+			e.printStackTrace();
+			si.append("<Parsing error: ");
+			si.append(e.getLocalizedMessage());
+			si.append(">\n");
+		}
+		si.append("\n");
+		si.append(master.getString(R.string.mtm_connect_anyway));
+		si.append("\n\n");
+		si.append(master.getString(R.string.mtm_cert_details));
+		certDetails(si, cert);
+		return si.toString();
+	}
+
+	// We can use Notification.Builder once MTM's minSDK is >= 11
+	@SuppressWarnings("deprecation")
+	void startActivityNotification(Intent intent, int decisionId, String certName) {
+		Notification n = new Notification(android.R.drawable.ic_lock_lock,
+				master.getString(R.string.mtm_notification),
+				System.currentTimeMillis());
+		PendingIntent call = PendingIntent.getActivity(master, 0, intent, 0);
+		n.setLatestEventInfo(master.getApplicationContext(),
+				master.getString(R.string.mtm_notification),
+				certName, call);
+		n.flags |= Notification.FLAG_AUTO_CANCEL;
+
+		notificationManager.notify(NOTIFICATION_ID + decisionId, n);
+	}
+
+	/**
+	 * Returns the top-most entry of the activity stack.
+	 *
+	 * @return the Context of the currently bound UI or the master context if none is bound
+	 */
+	Context getUI() {
+		return (foregroundAct != null) ? foregroundAct : master;
+	}
+
+	int interact(final String message, final int titleId) {
+		/* prepare the MTMDecision blocker object */
+		MTMDecision choice = new MTMDecision();
+		final int myId = createDecisionId(choice);
+
+		masterHandler.post(new Runnable() {
+			public void run() {
+				Intent ni = new Intent(master, MemorizingActivity.class);
+				ni.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+				ni.setData(Uri.parse(MemorizingTrustManager.class.getName() + "/" + myId));
+				ni.putExtra(DECISION_INTENT_ID, myId);
+				ni.putExtra(DECISION_INTENT_CERT, message);
+				ni.putExtra(DECISION_TITLE_ID, titleId);
+
+				// we try to directly start the activity and fall back to
+				// making a notification
+				try {
+					getUI().startActivity(ni);
+				} catch (Exception e) {
+					LOGGER.log(Level.FINE, "startActivity(MemorizingActivity)", e);
+					startActivityNotification(ni, myId, message);
+				}
+			}
+		});
+
+		LOGGER.log(Level.FINE, "openDecisions: " + openDecisions + ", waiting on " + myId);
+		try {
+			synchronized(choice) { choice.wait(); }
+		} catch (InterruptedException e) {
+			LOGGER.log(Level.FINER, "InterruptedException", e);
+		}
+		LOGGER.log(Level.FINE, "finished wait on " + myId + ": " + choice.state);
+		return choice.state;
+	}
+	
+	void interactCert(final X509Certificate[] chain, String authType, CertificateException cause)
+			throws CertificateException
+	{
+		switch (interact(certChainMessage(chain, cause), R.string.mtm_accept_cert)) {
+		case MTMDecision.DECISION_ALWAYS:
+			storeCert(chain[0]); // only store the server cert, not the whole chain
+		case MTMDecision.DECISION_ONCE:
+			break;
+		default:
+			throw (cause);
+		}
+	}
+
+	boolean interactHostname(X509Certificate cert, String hostname)
+	{
+		switch (interact(hostNameMessage(cert, hostname), R.string.mtm_accept_servername)) {
+		case MTMDecision.DECISION_ALWAYS:
+			storeCert(hostname, cert);
+		case MTMDecision.DECISION_ONCE:
+			return true;
+		default:
+			return false;
+		}
+	}
+
+	protected static void interactResult(int decisionId, int choice) {
+		MTMDecision d;
+		synchronized(openDecisions) {
+			 d = openDecisions.get(decisionId);
+			 openDecisions.remove(decisionId);
+		}
+		if (d == null) {
+			LOGGER.log(Level.SEVERE, "interactResult: aborting due to stale decision reference!");
+			return;
+		}
+		synchronized(d) {
+			d.state = choice;
+			d.notify();
+		}
+	}
+	
+	class MemorizingHostnameVerifier implements HostnameVerifier {
+		private HostnameVerifier defaultVerifier;
+		
+		public MemorizingHostnameVerifier(HostnameVerifier wrapped) {
+			defaultVerifier = wrapped;
+		}
+
+		protected boolean verify(String hostname, SSLSession session, boolean interactive) {
+			LOGGER.log(Level.FINE, "hostname verifier for " + hostname + ", trying default verifier first");
+			// if the default verifier accepts the hostname, we are done
+			if (defaultVerifier.verify(hostname, session)) {
+				LOGGER.log(Level.FINE, "default verifier accepted " + hostname);
+				return true;
+			}
+			// otherwise, we check if the hostname is an alias for this cert in our keystore
+			try {
+				X509Certificate cert = (X509Certificate)session.getPeerCertificates()[0];
+				//Log.d(TAG, "cert: " + cert);
+				if (cert.equals(appKeyStore.getCertificate(hostname.toLowerCase(Locale.US)))) {
+					LOGGER.log(Level.FINE, "certificate for " + hostname + " is in our keystore. accepting.");
+					return true;
+				} else {
+					LOGGER.log(Level.FINE, "server " + hostname + " provided wrong certificate, asking user.");
+					if (interactive) {
+						return interactHostname(cert, hostname);
+					} else {
+						return false;
+					}
+				}
+			} catch (Exception e) {
+				e.printStackTrace();
+				return false;
+			}
+		}
+		
+		@Override
+		public boolean verify(String hostname, SSLSession session) {
+			return verify(hostname, session, true);
+		}
+	}
+	
+	class NonInteractiveMemorizingHostnameVerifier extends MemorizingHostnameVerifier {
+
+		public NonInteractiveMemorizingHostnameVerifier(HostnameVerifier wrapped) {
+			super(wrapped);
+		}
+		@Override
+		public boolean verify(String hostname, SSLSession session) {
+			return verify(hostname, session, true);
+		}
+		
+		
+	}
+	
+	public X509TrustManager getNonInteractive() {
+		return new NonInteractiveMemorizingTrustManager();
+	}
+	
+	private class NonInteractiveMemorizingTrustManager implements X509TrustManager {
+
+		@Override
+		public void checkClientTrusted(X509Certificate[] chain, String authType)
+				throws CertificateException {
+			MemorizingTrustManager.this.checkCertTrusted(chain, authType, false, false);
+		}
+
+		@Override
+		public void checkServerTrusted(X509Certificate[] chain, String authType)
+				throws CertificateException {
+			MemorizingTrustManager.this.checkCertTrusted(chain, authType, true, false);
+		}
+
+		@Override
+		public X509Certificate[] getAcceptedIssuers() {
+			return MemorizingTrustManager.this.getAcceptedIssuers();
+		}
+		
+	}
+}

libs/minidns

@@ -1 +0,0 @@
-Subproject commit 152be6eb1a22da8cebe24ac4ee05b487936c9f2a

libs/minidns/.gitignore

@@ -0,0 +1,107 @@
+# From https://github.com/github/gitignore
+
+# # # # # # # # # # # #
+# Android  gitignore  #
+# # # # # # # # # # # #
+
+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+gradle.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# # # # # # # #
+# VIM / Linux #
+# # # # # # # #
+
+[._]*.s[a-w][a-z]
+[._]s[a-w][a-z]
+*.un~
+Session.vim
+.netrwhist
+*~
+.directory
+
+# # # # # #
+# Eclipse #
+# # # # # #
+
+*.pydevproject
+.metadata
+.gradle
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.classpath
+.project
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# PDT-specific
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# TeXlipse plugin
+.texlipse
+
+# # # # #
+# OS X  #
+# # # # #
+
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must ends with two \r.
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear on external disk
+.Spotlight-V100
+.Trashes
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+

libs/minidns/LICENCE

@@ -0,0 +1,4 @@
+This software may be used under the terms of (at your choice)
+- LGPL version 2 (or later) (see LICENCE_LGPL2.1 for details)
+- Apache Software licence (see LICENCE_APACHE for details)
+- WTFPL (see LICENCE_WTFPL for details)

libs/minidns/LICENCE_APACHE

@@ -0,0 +1,178 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
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+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+

libs/minidns/LICENCE_LGPL2.1

@@ -0,0 +1,503 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+  Ty Coon, President of Vice
+
+That's all there is to it!
+

libs/minidns/LICENCE_WTFPL

@@ -0,0 +1,13 @@
+        DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
+                    Version 2, December 2004 
+
+ Copyright (C) 2014 Rene Treffer <treffer+wtfpl@measite.de> 
+
+ Everyone is permitted to copy and distribute verbatim or modified 
+ copies of this license document, and changing it is allowed as long 
+ as the name is changed. 
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.

libs/minidns/README.md

@@ -0,0 +1,8 @@
+MiniDNS
+-------
+
+MiniDNS is a minimal dns client library for android. It can parse a basic set
+of resource records (A, AAAA, NS, SRV) and is easy to use and extend.
+
+This library is not intended to be used as a DNS server. You might want to
+look into dnsjava for such functionality.

libs/minidns/build.gradle

@@ -0,0 +1,77 @@
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'osgi'
+apply plugin: 'nexus'
+
+buildscript {
+    repositories {
+        jcenter()
+        mavenLocal()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'org.gradle.api.plugins:gradle-nexus-plugin:0.7.1'
+    }
+}
+
+group = 'de.measite.minidns'
+description = "A minimal DNS client library with support for A, AAAA, NS and SRV records"
+sourceCompatibility = 1.7
+version = 'git tag --points-at HEAD'.execute().text.trim()
+isSNAPSHOT = 'git rev-parse --abbrev-ref HEAD'.execute().text.trim() == 'master'
+
+if (isSNAPSHOT) {
+  version = version + '-SNAPSHOT'
+}
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+}
+
+nexus {
+    attachSources = true
+    attachTests = false
+    attachJavadoc = true
+    sign = true
+}
+
+modifyPom {
+    project {
+        name 'minidns'
+        description 'Minimal DNS library for java and android systems'
+        url 'https://github.com/rtreffer/minidns'
+        inceptionYear '2014'
+
+        scm {
+            url 'https://github.com/rtreffer/minidns'
+            connection 'scm:https://github.com/rtreffer/minidns'
+            developerConnection 'scm:git://github.com/rtreffer/minidns.git'
+        }
+
+        licenses {
+            license {
+                name 'The Apache Software License, Version 2.0'
+                url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                distribution 'repo'
+            }
+        }
+
+        developers {
+            developer {
+                id 'rtreffer'
+                name 'Rene Treffer'
+                email 'treffer@measite.de'
+            }
+            developer {
+                id 'flow'
+                name 'Florian Schmaus'
+                email 'flow@geekplace.eu'
+            }
+        }
+    }
+}
+
+dependencies {
+}

libs/minidns/gradle.properties.example

@@ -0,0 +1,21 @@
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+#
+# GPG settings
+#
+
+# gpg key id
+#signing.keyId=DEADBEEF
+# the gpg key passphrase
+#signing.password=correcthorsebatterystaple
+# gpg keyring (this is the default gnupg keyring containing private keys)
+#signing.secretKeyRingFile=/home/ubuntu/.gnupg/secring.gpg
+
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+#
+# nexus settings
+#
+
+# the nexus username used for log in
+#nexusUsername=ubuntu
+# the nexus password
+#nexusPassword=correcthorsebatterystaple

libs/minidns/src/main/java/de/measite/minidns/Client.java

@@ -0,0 +1,323 @@
+package de.measite.minidns;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.LineNumberReader;
+import java.lang.reflect.Method;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Random;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import de.measite.minidns.Record.CLASS;
+import de.measite.minidns.Record.TYPE;
+
+/**
+ * A minimal DNS client for SRV/A/AAAA/NS and CNAME lookups, with IDN support.
+ * This circumvents the missing javax.naming package on android.
+ */
+public class Client {
+
+    private static final Logger LOGGER = Logger.getLogger(Client.class.getName());
+
+    /**
+     * The internal random class for sequence generation.
+     */
+    protected Random random;
+
+    /**
+     * The buffer size for dns replies.
+     */
+    protected int bufferSize = 1500;
+
+    /**
+     * DNS timeout.
+     */
+    protected int timeout = 5000;
+
+    /**
+     * The internal DNS cache.
+     */
+    protected DNSCache cache;
+
+    /**
+     * Create a new DNS client with the given DNS cache.
+     * @param cache The backend DNS cache.
+     */
+    public Client(DNSCache cache) {
+        try {
+            random = SecureRandom.getInstance("SHA1PRNG");
+        } catch (NoSuchAlgorithmException e1) {
+            random = new SecureRandom();
+        }
+        this.cache = cache;
+    }
+
+    /**
+     * Create a new DNS client.
+     */
+    public Client() {
+        this(null);
+    }
+
+    /**
+     * Query a nameserver for a single entry.
+     * @param name The DNS name to request.
+     * @param type The DNS type to request (SRV, A, AAAA, ...).
+     * @param clazz The class of the request (usually IN for Internet).
+     * @param host The DNS server host.
+     * @param port The DNS server port.
+     * @return The response (or null on timeout / failure).
+     * @throws IOException On IO Errors.
+     */
+    public DNSMessage query(String name, TYPE type, CLASS clazz, String host, int port)
+        throws IOException
+    {
+        Question q = new Question(name, type, clazz);
+        return query(q, host, port);
+    }
+
+    /**
+     * Query a nameserver for a single entry.
+     * @param name The DNS name to request.
+     * @param type The DNS type to request (SRV, A, AAAA, ...).
+     * @param clazz The class of the request (usually IN for Internet).
+     * @param host The DNS server host.
+     * @return The response (or null on timeout / failure).
+     * @throws IOException On IO Errors.
+     */
+    public DNSMessage query(String name, TYPE type, CLASS clazz, String host)
+        throws IOException
+    {
+        Question q = new Question(name, type, clazz);
+        return query(q, host);
+    }
+
+    /**
+     * Query the system nameserver for a single entry.
+     * @param name The DNS name to request.
+     * @param type The DNS type to request (SRV, A, AAAA, ...).
+     * @param clazz The class of the request (usually IN for Internet).
+     * @return The response (or null on timeout/error).
+     * @return The DNSMessage reply or null.
+     */
+    public DNSMessage query(String name, TYPE type, CLASS clazz)
+    {
+        Question q = new Question(name, type, clazz);
+        return query(q);
+    }
+
+    /**
+     * Query a specific server for one entry.
+     * @param q The question section of the DNS query.
+     * @param host The dns server host.
+     * @return The response (or null on timeout/error).
+     * @throws IOException On IOErrors.
+     */
+    public DNSMessage query(Question q, String host) throws IOException {
+        return query(q, host, 53);
+    }
+
+    /**
+     * Query a specific server for one entry.
+     * @param q The question section of the DNS query.
+     * @param host The dns server host.
+     * @param port the dns port.
+     * @return The response (or null on timeout/error).
+     * @throws IOException On IOErrors.
+     */
+    public DNSMessage query(Question q, String host, int port) throws IOException {
+        DNSMessage dnsMessage = (cache == null) ? null : cache.get(q);
+        if (dnsMessage != null) {
+            return dnsMessage;
+        }
+        DNSMessage message = new DNSMessage();
+        message.setQuestions(new Question[]{q});
+        message.setRecursionDesired(true);
+        message.setId(random.nextInt());
+        byte[] buf = message.toArray();
+        try (DatagramSocket socket = new DatagramSocket()) {
+            DatagramPacket packet = new DatagramPacket(buf, buf.length,
+                    InetAddress.getByName(host), port);
+            socket.setSoTimeout(timeout);
+            socket.send(packet);
+            packet = new DatagramPacket(new byte[bufferSize], bufferSize);
+            socket.receive(packet);
+            dnsMessage = DNSMessage.parse(packet.getData());
+            if (dnsMessage.getId() != message.getId()) {
+                return null;
+            }
+            for (Record record : dnsMessage.getAnswers()) {
+                if (record.isAnswer(q)) {
+                    if (cache != null) {
+                        cache.put(q, dnsMessage);
+                    }
+                    break;
+                }
+            }
+            return dnsMessage;
+        }
+    }
+
+    /**
+     * Query the system DNS server for one entry.
+     * @param q The question section of the DNS query.
+     * @return The response (or null on timeout/error).
+     */
+    public DNSMessage query(Question q) {
+        // While this query method does in fact re-use query(Question, String)
+        // we still do a cache lookup here in order to avoid unnecessary
+        // findDNS()calls, which are expensive on Android. Note that we do not
+        // put the results back into the Cache, as this is already done by
+        // query(Question, String).
+        DNSMessage message = cache.get(q);
+        if (message != null) {
+            return message;
+        }
+        String dnsServer[] = findDNS();
+        for (String dns : dnsServer) {
+            try {
+                message = query(q, dns);
+                if (message == null) {
+                    continue;
+                }
+                if (message.getResponseCode() !=
+                    DNSMessage.RESPONSE_CODE.NO_ERROR) {
+                    continue;
+                }
+                for (Record record: message.getAnswers()) {
+                    if (record.isAnswer(q)) {
+                        return message;
+                    }
+                }
+            } catch (IOException ioe) {
+                LOGGER.log(Level.FINE, "IOException in query", ioe);
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Retrieve a list of currently configured DNS servers.
+     * @return The server array.
+     */
+    public String[] findDNS() {
+        String[] result = findDNSByReflection();
+        if (result != null) {
+            LOGGER.fine("Got DNS servers via reflection: " + Arrays.toString(result));
+            return result;
+        }
+
+        result = findDNSByExec();
+        if (result != null) {
+            LOGGER.fine("Got DNS servers via exec: " + Arrays.toString(result));
+            return result;
+        }
+
+        // fallback for ipv4 and ipv6 connectivity
+        // see https://developers.google.com/speed/public-dns/docs/using
+        LOGGER.fine("No DNS found? Using fallback [8.8.8.8, [2001:4860:4860::8888]]");
+
+        return new String[]{"8.8.8.8", "[2001:4860:4860::8888]"};
+    }
+
+    /**
+     * Try to retrieve the list of dns server by executing getprop.
+     * @return Array of servers, or null on failure.
+     */
+    protected String[] findDNSByExec() {
+        try {
+            Process process = Runtime.getRuntime().exec("getprop");
+            InputStream inputStream = process.getInputStream();
+            LineNumberReader lnr = new LineNumberReader(
+                new InputStreamReader(inputStream));
+            String line = null;
+            HashSet<String> server = new HashSet<String>(6);
+            while ((line = lnr.readLine()) != null) {
+                int split = line.indexOf("]: [");
+                if (split == -1) {
+                    continue;
+                }
+                String property = line.substring(1, split);
+                String value = line.substring(split + 4, line.length() - 1);
+                if (property.endsWith(".dns") || property.endsWith(".dns1") ||
+                    property.endsWith(".dns2") || property.endsWith(".dns3") ||
+                    property.endsWith(".dns4")) {
+
+                    // normalize the address
+
+                    InetAddress ip = InetAddress.getByName(value);
+
+                    if (ip == null) continue;
+
+                    value = ip.getHostAddress();
+
+                    if (value == null) continue;
+                    if (value.length() == 0) continue;
+
+                    server.add(value);
+                }
+            }
+            if (server.size() > 0) {
+                return server.toArray(new String[server.size()]);
+            }
+        } catch (IOException e) {
+            LOGGER.log(Level.WARNING, "Exception in findDNSByExec", e);
+        }
+        return null;
+    }
+
+    /**
+     * Try to retrieve the list of dns server by calling SystemProperties.
+     * @return Array of servers, or null on failure.
+     */
+    protected String[] findDNSByReflection() {
+        try {
+            Class<?> SystemProperties =
+                    Class.forName("android.os.SystemProperties");
+            Method method = SystemProperties.getMethod("get",
+                    new Class[] { String.class });
+
+            ArrayList<String> servers = new ArrayList<String>(5);
+
+            for (String propKey : new String[] {
+                    "net.dns1", "net.dns2", "net.dns3", "net.dns4"}) {
+
+                String value = (String)method.invoke(null, propKey);
+
+                if (value == null) continue;
+                if (value.length() == 0) continue;
+                if (servers.contains(value)) continue;
+
+                InetAddress ip = InetAddress.getByName(value);
+
+                if (ip == null) continue;
+
+                value = ip.getHostAddress();
+
+                if (value == null) continue;
+                if (value.length() == 0) continue;
+                if (servers.contains(value)) continue;
+
+                servers.add(value);
+            }
+
+            if (servers.size() > 0) {
+                return servers.toArray(new String[servers.size()]);
+            }
+        } catch (Exception e) {
+            // we might trigger some problems this way
+            LOGGER.log(Level.WARNING, "Exception in findDNSByReflection", e);
+        }
+        return null;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/DNSCache.java

@@ -0,0 +1,23 @@
+package de.measite.minidns;
+
+/**
+ * Cache for DNS Entries. Implementations must be thread safe.
+ */
+public interface DNSCache {
+
+    /**
+     * Add an an dns answer/response for a given dns question. Implementations
+     * should honor the ttl / receive timestamp.
+     * @param q The question.
+     * @param message The dns message.
+     */
+    void put(Question q, DNSMessage message);
+
+    /**
+     * Request a cached dns response.
+     * @param q The dns question.
+     * @return The dns message.
+     */
+    DNSMessage get(Question q);
+
+}

libs/minidns/src/main/java/de/measite/minidns/DNSMessage.java

@@ -0,0 +1,524 @@
+package de.measite.minidns;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * A DNS message as defined by rfc1035. The message consists of a header and
+ * 4 sections: question, answer, nameserver and addition resource record
+ * section.
+ * A message can either be parsed ({@link DNSMessage#parse(byte[])}) or serialized
+ * ({@link DNSMessage#toArray()}).
+ */
+public class DNSMessage {
+
+    /**
+     * Possible DNS reply codes.
+     */
+    public static enum RESPONSE_CODE {
+        NO_ERROR(0), FORMAT_ERR(1), SERVER_FAIL(2), NX_DOMAIN(3),
+        NO_IMP(4), REFUSED(5), YXDOMAIN(6), YXRRSET(7),
+        NXRRSET(8), NOT_AUTH(9),NOT_ZONE(10);
+
+        /**
+         * Reverse lookup table for response codes.
+         */
+        private final static RESPONSE_CODE INVERSE_LUT[] = new RESPONSE_CODE[]{
+            NO_ERROR, FORMAT_ERR, SERVER_FAIL, NX_DOMAIN, NO_IMP,
+            REFUSED, YXDOMAIN, YXRRSET, NXRRSET, NOT_AUTH, NOT_ZONE,
+            null, null, null, null, null
+        };
+
+        /**
+         * The response code value.
+         */
+        private final byte value;
+
+        /**
+         * Create a new response code.
+         * @param value The response code value.
+         */
+        private RESPONSE_CODE(int value) {
+            this.value = (byte)value;
+        }
+
+        /**
+         * Retrieve the byte value of the response code.
+         * @return the response code.
+         */
+        public byte getValue() {
+            return (byte) value;
+        }
+
+        /**
+         * Retrieve the response code for a byte value.
+         * @param value The byte value.
+         * @return The symbolic response code or null.
+         * @throws IllegalArgumentException if the value is not in the range of
+         *         0..15.
+         */
+        public static RESPONSE_CODE getResponseCode(int value) {
+            if (value < 0 || value > 15) {
+                throw new IllegalArgumentException();
+            }
+            return INVERSE_LUT[value];
+        }
+
+    };
+
+    /**
+     * Symbolic DNS Opcode values.
+     */
+    public static enum OPCODE {
+        QUERY(0),
+        INVERSE_QUERY(1),
+        STATUS(2),
+        NOTIFY(4),
+        UPDATE(5);
+
+        /**
+         * Lookup table for for obcode reolution.
+         */
+        private final static OPCODE INVERSE_LUT[] = new OPCODE[]{
+            QUERY, INVERSE_QUERY, STATUS, null, NOTIFY, UPDATE, null,
+            null, null, null, null, null, null, null, null
+        };
+
+        /**
+         * The value of this opcode.
+         */
+        private final byte value;
+
+        /**
+         * Create a new opcode for a given byte value.
+         * @param value The byte value of the opcode.
+         */
+        private OPCODE(int value) {
+            this.value = (byte)value;
+        }
+
+        /**
+         * Retrieve the byte value of this opcode.
+         * @return The byte value of this opcode.
+         */
+        public byte getValue() {
+            return value;
+        }
+
+        /**
+         * Retrieve the symbolic name of an opcode byte.
+         * @param value The byte value of the opcode.
+         * @return The symbolic opcode or null.
+         * @throws IllegalArgumentException If the byte value is not in the
+         *         range 0..15.
+         */
+        public static OPCODE getOpcode(int value) {
+            if (value < 0 || value > 15) {
+                throw new IllegalArgumentException();
+            }
+            return INVERSE_LUT[value];
+        }
+
+    };
+
+    /**
+     * The DNS message id.
+     */
+    protected int id;
+
+    /**
+     * The DNS message opcode.
+     */
+    protected OPCODE opcode;
+
+    /**
+     * The response code of this dns message.
+     */
+    protected RESPONSE_CODE responseCode;
+
+    /**
+     * True if this is a query.
+     */
+    protected boolean query;
+
+    /**
+     * True if this is a authorative response.
+     */
+    protected boolean authoritativeAnswer;
+
+    /**
+     * True on truncate, tcp should be used.
+     */
+    protected boolean truncated;
+
+    /**
+     * True if the server should recurse.
+     */
+    protected boolean recursionDesired;
+
+    /**
+     * True if recursion is possible.
+     */
+    protected boolean recursionAvailable;
+
+    /**
+     * True if the server regarded the response as authentic.
+     */
+    protected boolean authenticData;
+
+    /**
+     * True if the server should not check the replies.
+     */
+    protected boolean checkDisabled;
+
+    /**
+     * The question section content.
+     */
+    protected Question questions[];
+
+    /**
+     * The answers section content.
+     */
+    protected Record answers[];
+
+    /**
+     * The nameserver records.
+     */
+    protected Record nameserverRecords[];
+
+    /**
+     * Additional resousrce records.
+     */
+    protected Record additionalResourceRecords[];
+
+    /**
+     * The receive timestamp of this message.
+     */
+    protected long receiveTimestamp;
+
+    /**
+     * Retrieve the current DNS message id.
+     * @return The current DNS message id.
+     */
+    public int getId() {
+        return id;
+    }
+
+    /**
+     * Set the current DNS message id.
+     * @param id The new DNS message id.
+     */
+    public void setId(int id) {
+        this.id = id & 0xffff;
+    }
+
+    /**
+     * Get the receive timestamp if this message was created via parse.
+     * This should be used to evaluate TTLs.
+     * @return The receive timestamp in milliseconds.
+     */
+    public long getReceiveTimestamp() {
+        return receiveTimestamp;
+    }
+
+    /**
+     * Retrieve the query type (true or false;
+     * @return True if this DNS message is a query.
+     */
+    public boolean isQuery() {
+        return query;
+    }
+
+    /**
+     * Set the query status of this message.
+     * @param query The new query status.
+     */
+    public void setQuery(boolean query) {
+        this.query = query;
+    }
+
+    /**
+     * True if the DNS message is an authoritative answer.
+     * @return True if this an authoritative DNS message.
+     */
+    public boolean isAuthoritativeAnswer() {
+        return authoritativeAnswer;
+    }
+
+    /**
+     * Set the authoritative answer flag.
+     * @param authoritativeAnswer Tge new authoritative answer value.
+     */
+    public void setAuthoritativeAnswer(boolean authoritativeAnswer) {
+        this.authoritativeAnswer = authoritativeAnswer;
+    }
+
+    /**
+     * Retrieve the truncation status of this message. True means that the
+     * client should try a tcp lookup.
+     * @return True if this message was truncated.
+     */
+    public boolean isTruncated() {
+        return truncated;
+    }
+
+    /**
+     * Set the truncation bit on this DNS message.
+     * @param truncated The new truncated bit status.
+     */
+    public void setTruncated(boolean truncated) {
+        this.truncated = truncated;
+    }
+
+    /**
+     * Check if this message preferes recursion.
+     * @return True if recursion is desired.
+     */
+    public boolean isRecursionDesired() {
+        return recursionDesired;
+    }
+
+    /**
+     * Set the recursion desired flag on this message.
+     * @param recursionDesired The new recusrion setting.
+     */
+    public void setRecursionDesired(boolean recursionDesired) {
+        this.recursionDesired = recursionDesired;
+    }
+
+    /**
+     * Retrieve the recursion available flag of this DNS message.
+     * @return The recursion available flag of this message.
+     */
+    public boolean isRecursionAvailable() {
+        return recursionAvailable;
+    }
+
+    /**
+     * Set the recursion available flog from this DNS message.
+     * @param recursionAvailable The new recursion available status.
+     */
+    public void setRecursionAvailable(boolean recursionAvailable) {
+        this.recursionAvailable = recursionAvailable;
+    }
+
+    /**
+     * Retrieve the authentic data flag of this message.
+     * @return The authentic data flag.
+     */
+    public boolean isAuthenticData() {
+        return authenticData;
+    }
+
+    /**
+     * Set the authentic data flag on this DNS message.
+     * @param authenticData The new authentic data flag value.
+     */
+    public void setAuthenticData(boolean authenticData) {
+        this.authenticData = authenticData;
+    }
+
+    /**
+     * Check if checks are disabled.
+     * @return The status of the CheckDisabled flag.
+     */
+    public boolean isCheckDisabled() {
+        return checkDisabled;
+    }
+
+    /**
+     * Change the check status of this packet.
+     * @param checkDisabled The new check disabled value.
+     */
+    public void setCheckDisabled(boolean checkDisabled) {
+        this.checkDisabled = checkDisabled;
+    }
+
+    /**
+     * Generate a binary dns packet out of this message.
+     * @return byte[] the binary representation.
+     * @throws IOException Should never happen.
+     */
+    public byte[] toArray() throws IOException {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream(512);
+        DataOutputStream dos = new DataOutputStream(baos);
+        int header = 0;
+        if (query) {
+            header += 1 << 15;
+        }
+        if (opcode != null) {
+            header += opcode.getValue() << 11;
+        }
+        if (authoritativeAnswer) {
+            header += 1 << 10;
+        }
+        if (truncated) {
+            header += 1 << 9;
+        }
+        if (recursionDesired) {
+            header += 1 << 8;
+        }
+        if (recursionAvailable) {
+            header += 1 << 7;
+        }
+        if (authenticData) {
+            header += 1 << 5;
+        }
+        if (checkDisabled) {
+            header += 1 << 4;
+        }
+        if (responseCode != null) {
+            header += responseCode.getValue();
+        }
+        dos.writeShort((short)id);
+        dos.writeShort((short)header);
+        if (questions == null) {
+            dos.writeShort(0);
+        } else {
+            dos.writeShort((short)questions.length);
+        }
+        if (answers == null) {
+            dos.writeShort(0);
+        } else {
+            dos.writeShort((short)answers.length);
+        }
+        if (nameserverRecords == null) {
+            dos.writeShort(0);
+        } else {
+            dos.writeShort((short)nameserverRecords.length);
+        }
+        if (additionalResourceRecords == null) {
+            dos.writeShort(0);
+        } else {
+            dos.writeShort((short)additionalResourceRecords.length);
+        }
+        for (Question question: questions) {
+            dos.write(question.toByteArray());
+        }
+        dos.flush();
+        return baos.toByteArray();
+    }
+
+    /**
+     * Build a DNS Message based on a binary DNS message.
+     * @param data The DNS message data.
+     * @return Parsed DNSMessage message.
+     * @throws IOException On read errors.
+     */
+    public static DNSMessage parse(byte data[]) throws IOException {
+        ByteArrayInputStream bis = new ByteArrayInputStream(data);
+        DataInputStream dis = new DataInputStream(bis);
+        DNSMessage message = new DNSMessage();
+        message.id = dis.readUnsignedShort();
+        int header = dis.readUnsignedShort();
+        message.query = ((header >> 15) & 1) == 0;
+        message.opcode = OPCODE.getOpcode((header >> 11) & 0xf);
+        message.authoritativeAnswer = ((header >> 10) & 1) == 1;
+        message.truncated = ((header >> 9) & 1) == 1;
+        message.recursionDesired = ((header >> 8) & 1) == 1;
+        message.recursionAvailable = ((header >> 7) & 1) == 1;
+        message.authenticData = ((header >> 5) & 1) == 1;
+        message.checkDisabled = ((header >> 4) & 1) == 1;
+        message.responseCode = RESPONSE_CODE.getResponseCode(header & 0xf);
+        message.receiveTimestamp = System.currentTimeMillis();
+        int questionCount = dis.readUnsignedShort();
+        int answerCount = dis.readUnsignedShort();
+        int nameserverCount = dis.readUnsignedShort();
+        int additionalResourceRecordCount = dis.readUnsignedShort();
+        message.questions = new Question[questionCount];
+        while (questionCount-- > 0) {
+            Question q = Question.parse(dis, data);
+            message.questions[questionCount] = q;
+        }
+        message.answers = new Record[answerCount];
+        while (answerCount-- > 0) {
+            Record rr = new Record();
+            rr.parse(dis, data);
+            message.answers[answerCount] = rr;
+        }
+        message.nameserverRecords = new Record[nameserverCount];
+        while (nameserverCount-- > 0) {
+            Record rr = new Record();
+            rr.parse(dis, data);
+            message.nameserverRecords[nameserverCount] = rr;
+        }
+        message.additionalResourceRecords =
+                                    new Record[additionalResourceRecordCount];
+        while (additionalResourceRecordCount-- > 0) {
+            Record rr = new Record();
+            rr.parse(dis, data);
+            message.additionalResourceRecords[additionalResourceRecordCount] =
+                    rr;
+        }
+        return message;
+    }
+
+    /**
+     * Set the question part of this message.
+     * @param questions The questions.
+     */
+    public void setQuestions(Question ... questions) {
+        this.questions = questions;
+    }
+
+    /**
+     * Retrieve the opcode of this message.
+     * @return The opcode of this message.
+     */
+    public OPCODE getOpcode() {
+        return opcode;
+    }
+
+    /**
+     * Retrieve the response code of this message.
+     * @return The response code.
+     */
+    public RESPONSE_CODE getResponseCode() {
+        return responseCode;
+    }
+
+    /**
+     * Retrieve the question section of this message.
+     * @return The DNS question section.
+     */
+    public Question[] getQuestions() {
+        return questions;
+    }
+
+    /**
+     * Retrieve the answer records of this DNS message.
+     * @return The answer section of this DNS message.
+     */
+    public Record[] getAnswers() {
+        return answers;
+    }
+
+    /**
+     * Retrieve the nameserver records of this DNS message.
+     * @return The nameserver section of this DNS message.
+     */
+    public Record[] getNameserverRecords() {
+        return nameserverRecords;
+    }
+
+    /**
+     * Retrieve the additional resource records attached to this DNS message.
+     * @return The additional resource record section of this DNS message.
+     */
+    public Record[] getAdditionalResourceRecords() {
+        return additionalResourceRecords;
+    }
+
+    public String toString() {
+        return "-- DNSMessage " + id + " --\n" +
+               "Q" + Arrays.toString(questions) +
+               "NS" + Arrays.toString(nameserverRecords) +
+               "A" + Arrays.toString(answers) +
+               "ARR" + Arrays.toString(additionalResourceRecords);
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/LRUCache.java

@@ -0,0 +1,139 @@
+package de.measite.minidns;
+
+import java.util.LinkedHashMap;
+import java.util.Map.Entry;
+
+/**
+ * LRU based DNSCache backed by a LinkedHashMap.
+ */
+public class LRUCache implements DNSCache {
+
+    /**
+     * Internal miss count.
+     */
+    protected long missCount = 0l;
+
+    /**
+     * Internal expire count (subset of misses that was caused by expire).
+     */
+    protected long expireCount = 0l;
+
+    /**
+     * Internal hit count.
+     */
+    protected long hitCount = 0l;
+
+    /**
+     * The internal capacity of the backend cache.
+     */
+    protected int capacity;
+
+    /**
+     * The upper bound of the ttl. All longer TTLs will be capped by this ttl.
+     */
+    protected long maxTTL;
+
+    /**
+     * The backend cache.
+     */
+    protected LinkedHashMap<Question, DNSMessage> backend;
+
+    /**
+     * Create a new LRUCache with given capacity and upper bound ttl.
+     * @param capacity The internal capacity.
+     * @param maxTTL The upper bound for any ttl.
+     */
+    @SuppressWarnings("serial")
+    public LRUCache(final int capacity, final long maxTTL) {
+        this.capacity = capacity;
+        this.maxTTL = maxTTL;
+        backend = new LinkedHashMap<Question,DNSMessage>(
+                Math.min(capacity + (capacity + 3) / 4 + 2, 11), 0.75f, true)
+            {
+                @Override
+                protected boolean removeEldestEntry(
+                        Entry<Question, DNSMessage> eldest) {
+                    return size() > capacity;
+                }
+            };
+    }
+
+    /**
+     * Create a new LRUCache with given capacity.
+     * @param capacity The capacity of this cache.
+     */
+    public LRUCache(final int capacity) {
+        this(capacity, Long.MAX_VALUE);
+    }
+
+    @Override
+    public synchronized void put(Question q, DNSMessage message) {
+        if (message.getReceiveTimestamp() <= 0l) {
+            return;
+        }
+        backend.put(q, message);
+    }
+
+    @Override
+    public synchronized DNSMessage get(Question q) {
+        DNSMessage message = backend.get(q);
+        if (message == null) {
+            missCount++;
+            return null;
+        }
+
+        long ttl = maxTTL;
+        for (Record r : message.getAnswers()) {
+            ttl = Math.min(ttl, r.ttl);
+        }
+        for (Record r : message.getAdditionalResourceRecords()) {
+            ttl = Math.min(ttl, r.ttl);
+        }
+        if (message.getReceiveTimestamp() + ttl > System.currentTimeMillis()) {
+            missCount++;
+            expireCount++;
+            backend.remove(q);
+            return null;
+        } else {
+            hitCount++;
+            return message;
+        }
+    }
+
+    /**
+     * Clear all entries in this cache.
+     */
+    public synchronized void clear() {
+        backend.clear();
+        missCount = 0l;
+        hitCount = 0l;
+        expireCount = 0l;
+    }
+
+    /**
+     * Get the miss count of this cache which is the number of fruitless
+     * get calls since this cache was last resetted.
+     * @return The number of cache misses.
+     */
+    public long getMissCount() {
+        return missCount;
+    }
+
+    /**
+     * The number of expires (cache hits that have had a ttl to low to be
+     * retrieved).
+     * @return The expire count.
+     */
+    public long getExpireCount() {
+        return expireCount;
+    }
+
+    /**
+     * The cache hit count (all sucessful calls to get).
+     * @return The hit count.
+     */
+    public long getHitCount() {
+        return hitCount;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/Question.java

@@ -0,0 +1,158 @@
+package de.measite.minidns;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import de.measite.minidns.Record.CLASS;
+import de.measite.minidns.Record.TYPE;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * A DNS question (request).
+ */
+public class Question {
+
+    /**
+     * The question string (e.g. "measite.de").
+     */
+    private final String name;
+
+    /**
+     * The question type (e.g. A).
+     */
+    private final TYPE type;
+
+    /**
+     * The question class (usually IN / internet).
+     */
+    private final CLASS clazz;
+
+    /**
+     * UnicastQueries have the highest bit of the CLASS field set to 1.
+     */
+    private final boolean unicastQuery;
+
+    /**
+     * Cache for the serialized object.
+     */
+    private byte[] byteArray;
+
+    /**
+     * Create a dns question for the given name/type/class.
+     * @param name The name e.g. "measite.de".
+     * @param type The type, e.g. A.
+     * @param clazz The class, usually IN (internet).
+     */
+    public Question(String name, TYPE type, CLASS clazz, boolean unicastQuery) {
+        this.name = name;
+        this.type = type;
+        this.clazz = clazz;
+        this.unicastQuery = unicastQuery;
+    }
+
+    /**
+     * Create a dns question for the given name/type/class.
+     * @param name The name e.g. "measite.de".
+     * @param type The type, e.g. A.
+     * @param clazz The class, usually IN (internet).
+     */
+    public Question(String name, TYPE type, CLASS clazz) {
+        this(name, type, clazz, false);
+    }
+
+    /**
+     * Create a dns question for the given name/type/IN (internet class).
+     * @param name The name e.g. "measite.de".
+     * @param type The type, e.g. A.
+     */
+    public Question(String name, TYPE type) {
+        this(name, type, CLASS.IN);
+    }
+
+    /**
+     * Retrieve the type of this question.
+     * @return The type.
+     */
+    public TYPE getType() {
+        return type;
+    }
+
+    /**
+     * Retrieve the class of this dns question (usually internet).
+     * @return The class of this dns question.
+     */
+    public CLASS getClazz() {
+        return clazz;
+    }
+
+    /**
+     * Retrieve the name of this dns question (e.g. "measite.de").
+     * @return The name of this dns question.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Parse a byte array and rebuild the dns question from it.
+     * @param dis The input stream.
+     * @param data The plain data (for dns name references).
+     * @return The parsed dns question.
+     * @throws IOException On errors (read outside of packet).
+     */
+    public static Question parse(DataInputStream dis, byte[] data) throws IOException {
+        String name = NameUtil.parse(dis, data);
+        TYPE type = TYPE.getType(dis.readUnsignedShort());
+        CLASS clazz = CLASS.getClass(dis.readUnsignedShort());
+        return new Question (name, type, clazz);
+    }
+
+    /**
+     * Generate a binary paket for this dns question.
+     * @return The dns question.
+     */
+    public byte[] toByteArray() {
+        if (byteArray == null) {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream(512);
+            DataOutputStream dos = new DataOutputStream(baos);
+
+            try {
+                dos.write(NameUtil.toByteArray(this.name));
+                dos.writeShort(type.getValue());
+                dos.writeShort(clazz.getValue() | (unicastQuery ? (1 << 15) : 0));
+                dos.flush();
+            } catch (IOException e) {
+                // Should never happen
+                throw new IllegalStateException(e);
+            }
+            byteArray = baos.toByteArray();
+        }
+        return byteArray;
+    }
+
+    @Override
+    public int hashCode() {
+        return Arrays.hashCode(toByteArray());
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof Question)) {
+            return false;
+        }
+        byte t[] = toByteArray();
+        byte o[] = ((Question)other).toByteArray();
+        return Arrays.equals(t, o);
+    }
+
+    @Override
+    public String toString() {
+        return "Question/" + clazz + "/" + type + ": " + name;
+    }
+}

libs/minidns/src/main/java/de/measite/minidns/Record.java

@@ -0,0 +1,343 @@
+package de.measite.minidns;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import de.measite.minidns.record.A;
+import de.measite.minidns.record.AAAA;
+import de.measite.minidns.record.CNAME;
+import de.measite.minidns.record.Data;
+import de.measite.minidns.record.NS;
+import de.measite.minidns.record.PTR;
+import de.measite.minidns.record.SRV;
+import de.measite.minidns.record.TXT;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * A generic DNS record.
+ */
+public class Record {
+
+    private static final Logger LOGGER = Logger.getLogger(Client.class.getName());
+
+    /**
+     * The record type.
+     * @see <a href="http://www.iana.org/assignments/dns-parameters">IANA DNS Parameters</a>
+     */
+    public static enum TYPE {
+        A(1),
+        NS(2),
+        MD(3),
+        MF(4),
+        CNAME(5),
+        SOA(6),
+        MB(7),
+        MG(8),
+        MR(9),
+        NULL(10),
+        WKS(11),
+        PTR(12),
+        HINFO(13),
+        MINFO(14),
+        MX(15),
+        TXT(16),
+        RP(17),
+        AFSDB(18),
+        X25(19),
+        ISDN(20),
+        RT(21),
+        NSAP(22),
+        NSAP_PTR(23),
+        SIG(24),
+        KEY(25),
+        PX(26),
+        GPOS(27),
+        AAAA(28),
+        LOC(29),
+        NXT(30),
+        EID(31),
+        NIMLOC(32),
+        SRV(33),
+        ATMA(34),
+        NAPTR(35),
+        KX(36),
+        CERT(37),
+        A6(38),
+        DNAME(39),
+        SINK(40),
+        OPT(41),
+        APL(42),
+        DS(43),
+        SSHFP(44),
+        IPSECKEY(45),
+        RRSIG(46),
+        NSEC(47),
+        DNSKEY(48),
+        DHCID(49),
+        NSEC3(50),
+        NSEC3PARAM(51),
+        HIP(55),
+        NINFO(56),
+        RKEY(57),
+        TALINK(58),
+        SPF(99),
+        UINFO(100),
+        UID(101),
+        GID(102),
+        TKEY(249),
+        TSIG(250),
+        IXFR(251),
+        AXFR(252),
+        MAILB(253),
+        MAILA(254),
+        ANY(255),
+        TA(32768),
+        DLV(32769);
+
+        /**
+         * The value of this DNS record type.
+         */
+        private final int value;
+
+        /**
+         * Internal lookup table to map values to types.
+         */
+        private final static HashMap<Integer, TYPE> INVERSE_LUT =
+                                        new HashMap<Integer, TYPE>();
+
+        /**
+         * Initialize the reverse lookup table.
+         */
+        static {
+            for(TYPE t: TYPE.values()) {
+                INVERSE_LUT.put(t.getValue(), t);
+            }
+        }
+
+        /**
+         * Create a new record type.
+         * @param value The binary value of this type.
+         */
+        private TYPE(int value) {
+            this.value = value;
+        }
+
+        /**
+         * Retrieve the binary value of this type.
+         * @return The binary value.
+         */
+        public int getValue() {
+            return value;
+        }
+
+        /**
+         * Retrieve the symbolic type of the binary value.
+         * @param value The binary type value.
+         * @return The symbolic tpye.
+         */
+        public static TYPE getType(int value) {
+            return INVERSE_LUT.get(value);
+        }
+    };
+
+    /**
+     * The symbolic class of a DNS record (usually IN for Internet).
+     */
+    public static enum CLASS {
+        IN(1),
+        CH(3),
+        HS(4),
+        NONE(254),
+        ANY(255);
+
+        /**
+         * Internal reverse lookup table to map binary class values to symbolic
+         * names.
+         */
+        private final static HashMap<Integer, CLASS> INVERSE_LUT =
+                                            new HashMap<Integer, CLASS>();
+
+        /**
+         * Initialize the interal reverse lookup table.
+         */
+        static {
+            for(CLASS c: CLASS.values()) {
+                INVERSE_LUT.put(c.getValue(), c);
+            }
+        }
+
+        /**
+         * The binary value of this dns class.
+         */
+        private final int value;
+
+        /**
+         * Create a new DNS class based on a binary value.
+         * @param value The binary value of this DNS class.
+         */
+        private CLASS(int value) {
+            this.value = value;
+        }
+
+        /**
+         * Retrieve the binary value of this DNS class.
+         * @return The binary value of this DNS class.
+         */
+        public int getValue() {
+            return value;
+        }
+
+        /**
+         * Retrieve the symbolic DNS class for a binary class value.
+         * @param value The binary DNS class value.
+         * @return The symbolic class instance.
+         */
+        public static CLASS getClass(int value) {
+            return INVERSE_LUT.get(value);
+        }
+
+    }
+
+    /**
+     * The generic name of this record.
+     */
+    protected String name;
+
+    /**
+     * The type (and payload type) of this record.
+     */
+    protected TYPE type;
+
+    /**
+     * The record class (usually CLASS.IN).
+     */
+    protected CLASS clazz;
+
+    /**
+     * The ttl of this record.
+     */
+    protected long ttl;
+
+    /**
+     * The payload object of this record.
+     */
+    protected Data payloadData;
+
+    /**
+     * MDNS defines the highest bit of the class as the unicast query bit.
+     */
+    protected boolean unicastQuery;
+
+    /**
+     * Parse a given record based on the full message data and the current
+     * stream position.
+     * @param dis The DataInputStream positioned at the first record byte.
+     * @param data The full message data.
+     * @throws IOException In case of malformed replies.
+     */
+    public void parse(DataInputStream dis, byte[] data) throws IOException {
+        this.name = NameUtil.parse(dis, data);
+        this.type = TYPE.getType(dis.readUnsignedShort());
+        int clazzValue = dis.readUnsignedShort();
+        this.clazz = CLASS.getClass(clazzValue & 0x7fff);
+        this.unicastQuery = (clazzValue & 0x8000) > 0;
+        if (this.clazz == null) {
+            LOGGER.log(Level.FINE, "Unknown class " + clazzValue);
+        }
+        this.ttl = (((long)dis.readUnsignedShort()) << 32) +
+                   dis.readUnsignedShort();
+        int payloadLength = dis.readUnsignedShort();
+        switch (this.type) {
+        case SRV:
+            this.payloadData = new SRV();
+            break;
+        case AAAA:
+            this.payloadData = new AAAA();
+            break;
+        case A:
+            this.payloadData = new A();
+            break;
+        case NS:
+            this.payloadData = new NS();
+            break;
+        case CNAME:
+            this.payloadData = new CNAME();
+            break;
+        case PTR:
+            this.payloadData = new PTR();
+            break;
+        case TXT:
+            this.payloadData = new TXT();
+            break;
+        default:
+            LOGGER.log(Level.FINE, "Unparsed type " + type);
+            this.payloadData = null;
+            for (int i = 0; i < payloadLength; i++) {
+                dis.readByte();
+            }
+            break;
+        }
+        if (this.payloadData != null) {
+            this.payloadData.parse(dis, data, payloadLength);
+        }
+    }
+
+    /**
+     * Retrieve a textual representation of this resource record.
+     * @return String
+     */
+    @Override
+    public String toString() {
+        if (payloadData == null) {
+            return "RR " + type + "/" + clazz;
+        }
+        return "RR " + type + "/" + clazz + ": " + payloadData.toString();
+    };
+
+    /**
+     * Check if this record answers a given query.
+     * @param q The query.
+     * @return True if this record is a valid answer.
+     */
+    public boolean isAnswer(Question q) {
+        return ((q.getType() == type) || (q.getType() == TYPE.ANY)) &&
+               ((q.getClazz() == clazz) || (q.getClazz() == CLASS.ANY)) &&
+               (q.getName().equals(name));
+    }
+
+    /**
+     * See if this query/response was a unicast query (highest class bit set).
+     * @return True if it is a unicast query/response record.
+     */
+    public boolean isUnicastQuery() {
+        return unicastQuery;
+    }
+
+    /**
+     * The generic record name, e.g. "measite.de".
+     * @return The record name.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * The payload data, usually a subclass of data (A, AAAA, CNAME, ...).
+     * @return The payload data.
+     */
+    public Data getPayload() {
+        return payloadData;
+    }
+
+    /**
+     * Retrieve the record ttl.
+     * @return The record ttl.
+     */
+    public long getTtl() {
+        return ttl;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/A.java

@@ -0,0 +1,43 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+
+/**
+ * A record payload (ip pointer).
+ */
+public class A implements Data {
+
+    /**
+     * Target IP.
+     */
+    private byte[] ip;
+
+    @Override
+    public TYPE getType() {
+        return TYPE.A;
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        return ip;
+    }
+
+    @Override
+    public void parse(DataInputStream dis, byte[] data, int length)
+            throws IOException {
+        ip = new byte[4];
+        dis.readFully(ip);
+    }
+
+    @Override
+    public String toString() {
+        return Integer.toString(ip[0] & 0xff) + "." +
+               Integer.toString(ip[1] & 0xff) + "." +
+               Integer.toString(ip[2] & 0xff) + "." +
+               Integer.toString(ip[3] & 0xff);
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/AAAA.java

@@ -0,0 +1,49 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+
+/**
+ * AAAA payload (an ipv6 pointer).
+ */
+public class AAAA implements Data {
+
+    /**
+     * The ipv6 address.
+     */
+    private byte[] ip;
+
+    @Override
+    public TYPE getType() {
+        return TYPE.AAAA;
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        return ip;
+    }
+
+    @Override
+    public void parse(DataInputStream dis, byte[] data, int length)
+            throws IOException {
+        ip = new byte[16];
+        dis.readFully(ip);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < ip.length; i += 2) {
+            if (i != 0) {
+                sb.append(':');
+            }
+            sb.append(Integer.toHexString(
+                ((ip[i] & 0xff) << 8) + (ip[i + 1] & 0xff)
+            ));
+        }
+        return sb.toString();
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/CNAME.java

@@ -0,0 +1,46 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * CNAME payload (pointer to another domain / address).
+ */
+public class CNAME implements Data {
+
+    protected String name;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    @Override
+    public void parse(DataInputStream dis, byte[] data, int length)
+        throws IOException
+    {
+        this.name = NameUtil.parse(dis, data);
+    }
+
+    @Override
+    public TYPE getType() {
+        return TYPE.CNAME;
+    }
+
+    @Override
+    public String toString() {
+        return "to \"" + name + "\"";
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/Data.java

@@ -0,0 +1,34 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+
+/**
+ * Generic payload class.
+ */
+public interface Data {
+
+    /**
+     * The payload type.
+     * @return The payload type.
+     */
+    TYPE getType();
+
+    /**
+     * Binary representation of this payload.
+     * @return The binary representation of this payload.
+     */
+    byte[] toByteArray();
+
+    /**
+     * Parse this payload.
+     * @param dis The input stream.
+     * @param data The plain data (needed for name cross references).
+     * @param length The payload length.
+     * @throws IOException on io error (read past paket boundary).
+     */
+    void parse(DataInputStream dis, byte data[], int length) throws IOException;
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/NS.java

@@ -0,0 +1,15 @@
+package de.measite.minidns.record;
+
+import de.measite.minidns.Record.TYPE;
+
+/**
+ * Nameserver record.
+ */
+public class NS extends CNAME {
+
+    @Override
+    public TYPE getType() {
+        return TYPE.NS;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/PTR.java

@@ -0,0 +1,19 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * A PTR record is handled like a CNAME
+ */
+public class PTR extends CNAME {
+
+    @Override
+    public TYPE getType() {
+        return TYPE.PTR;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/SRV.java

@@ -0,0 +1,124 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * SRV record payload (service pointer).
+ */
+public class SRV implements Data {
+
+    /**
+     * The priority of this service.
+     */
+    protected int priority;
+
+    /**
+     * The weight of this service.
+     */
+    protected int weight;
+
+    /**
+     * The target port.
+     */
+    protected int port;
+
+    /**
+     * The target server.
+     */
+    protected String name;
+
+    /**
+     * The priority of this service. Lower values mean higher priority.
+     * @return The priority.
+     */
+    public int getPriority() {
+        return priority;
+    }
+
+    /**
+     * Set the priority of this service entry. Lower values have higher priority.
+     * @param priority The new priority.
+     */
+    public void setPriority(int priority) {
+        this.priority = priority;
+    }
+
+    /**
+     * The weight of this service. Services with the same priority should be
+     * balanced based on weight.
+     * @return The weight of this service.
+     */
+    public int getWeight() {
+        return weight;
+    }
+
+    /**
+     * Set the weight of this service.
+     * @param weight The new weight of this service.
+     */
+    public void setWeight(int weight) {
+        this.weight = weight;
+    }
+
+    /**
+     * The target port of this service.
+     * @return The target port of this service.
+     */
+    public int getPort() {
+        return port;
+    }
+
+    /**
+     * Set the target port of this service.
+     * @param port The new target port.
+     */
+    public void setPort(int port) {
+        this.port = port;
+    }
+
+    /**
+     * The name of the target server.
+     * @return The target servers name.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Set the name of the target server.
+     * @param name The new target servers name. 
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    @Override
+    public void parse(DataInputStream dis, byte[] data, int length)
+        throws IOException
+    {
+        this.priority = dis.readUnsignedShort();
+        this.weight = dis.readUnsignedShort();
+        this.port = dis.readUnsignedShort();
+        this.name = NameUtil.parse(dis, data);
+    }
+
+    @Override
+    public String toString() {
+        return "SRV " + name + ":" + port + " p:" + priority + " w:" + weight;
+    }
+
+    @Override
+    public TYPE getType() {
+        return TYPE.SRV;
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/record/TXT.java

@@ -0,0 +1,65 @@
+package de.measite.minidns.record;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+import de.measite.minidns.Record.TYPE;
+import de.measite.minidns.util.NameUtil;
+
+/**
+ * TXT record (actually a binary blob with wrappers for text content).
+ */
+public class TXT implements Data {
+
+    protected byte[] blob;
+
+    public byte[] getBlob() {
+        return blob;
+    }
+
+    public void setBlob(byte[] blob) {
+        this.blob = blob;
+    }
+
+    public String getText() {
+        try {
+            return (new String(blob, "UTF-8")).intern();
+        } catch (Exception e) {
+            /* Can't happen for UTF-8 unless it's really a blob */
+            return null;
+        }
+    }
+
+    public void setText(String text) {
+        try {
+            this.blob = text.getBytes("UTF-8");
+        } catch (Exception e) {
+            /* Can't happen, UTF-8 IS supported */
+            throw new RuntimeException("UTF-8 not supported", e);
+        }
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        throw new UnsupportedOperationException("Not implemented yet");
+    }
+
+    @Override
+    public void parse(DataInputStream dis, byte[] data, int length)
+        throws IOException
+    {
+        blob = new byte[length];
+        dis.readFully(blob);
+    }
+
+    @Override
+    public TYPE getType() {
+        return TYPE.TXT;
+    }
+
+    @Override
+    public String toString() {
+        return "\"" + getText() + "\"";
+    }
+
+}

libs/minidns/src/main/java/de/measite/minidns/util/NameUtil.java

@@ -0,0 +1,129 @@
+package de.measite.minidns.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.IDN;
+import java.util.HashSet;
+import java.util.Arrays;
+
+/**
+ * Utilities related to internationalized domain names and dns name handling.
+ */
+public class NameUtil {
+
+    /**
+     * Retrieve the rough binary length of a string
+     * (length + 2 bytes length prefix).
+     * @param name The name string.
+     * @return The binary size of the string (length + 2).
+     */
+    public static int size(String name) {
+        return name.length() + 2;
+    }
+
+    /**
+     * Check if two internationalized domain names are equal, possibly causing
+     * a serialization of both domain names.
+     * @param name1 The first domain name.
+     * @param name2 The second domain name.
+     * @return True if both domain names are the same.
+     */
+    public static boolean idnEquals(String name1, String name2) {
+        if (name1 == name2) return true; // catches null, null
+        if (name1 == null) return false;
+        if (name2 == null) return false;
+        if (name1.equals(name2)) return true;
+
+        try {
+            return Arrays.equals(toByteArray(name1),toByteArray(name2));
+        } catch (IOException e) {
+            return false; // impossible
+        }
+    }
+
+    /**
+     * Serialize a domain name under IDN rules.
+     * @param name The domain name.
+     * @return The binary domain name representation.
+     * @throws IOException Should never happen.
+     */
+    public static byte[] toByteArray(String name) throws IOException {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream(64);
+        DataOutputStream dos = new DataOutputStream(baos);
+        for (String s: name.split("[.\u3002\uFF0E\uFF61]")) {
+            byte[] buffer = IDN.toASCII(s).getBytes();
+            dos.writeByte(buffer.length);
+            dos.write(buffer);
+        }
+        dos.writeByte(0);
+        dos.flush();
+        return baos.toByteArray();
+    }
+
+    /**
+     * Parse a domain name starting at the current offset and moving the input
+     * stream pointer past this domain name (even if cross references occure).
+     * @param dis The input stream.
+     * @param data The raw data (for cross references).
+     * @return The domain name string.
+     * @throws IOException Should never happen.
+     */
+    public static String parse(DataInputStream dis, byte data[]) 
+        throws IOException
+    {
+        int c = dis.readUnsignedByte();
+        if ((c & 0xc0) == 0xc0) {
+            c = ((c & 0x3f) << 8) + dis.readUnsignedByte();
+            HashSet<Integer> jumps = new HashSet<Integer>();
+            jumps.add(c);
+            return parse(data, c, jumps);
+        }
+        if (c == 0) {
+            return "";
+        }
+        byte b[] = new byte[c];
+        dis.readFully(b);
+        String s = IDN.toUnicode(new String(b));
+        String t = parse(dis, data);
+        if (t.length() > 0) {
+            s = s + "." + t;
+        }
+        return s;
+    }
+
+    /**
+     * Parse a domain name starting at the given offset. 
+     * @param data The raw data.
+     * @param offset The offset.
+     * @param jumps The list of jumps (by now).
+     * @return The parsed domain name.
+     * @throws IllegalStateException on cycles.
+     */
+    public static String parse(
+        byte data[],
+        int offset,
+        HashSet<Integer> jumps
+    ) {
+        int c = data[offset] & 0xff;
+        if ((c & 0xc0) == 0xc0) {
+            c = ((c & 0x3f) << 8) + (data[offset + 1] & 0xff);
+            if (jumps.contains(c)) {
+                throw new IllegalStateException("Cyclic offsets detected.");
+            }
+            jumps.add(c);
+            return parse(data, c, jumps);
+        }
+        if (c == 0) {
+            return "";
+        }
+        String s = new String(data,offset + 1, c);
+        String t = parse(data, offset + 1 + c, jumps);
+        if (t.length() > 0) {
+            s = s + "." + t;
+        }
+        return s;
+    }
+
+}

libs/openpgp-api-lib

@@ -1 +0,0 @@
-Subproject commit 0be263d5d3effd2df5f976fa4a127017268749cc

libs/openpgp-api-lib/.gitignore

@@ -0,0 +1,29 @@
+#Android specific
+bin
+gen
+obj
+lint.xml
+local.properties
+release.properties
+ant.properties
+*.class
+*.apk
+
+#Gradle
+.gradle
+build
+gradle.properties
+
+#Maven
+target
+pom.xml.*
+
+#Eclipse
+.project
+.classpath
+.settings
+.metadata
+
+#IntelliJ IDEA
+.idea
+*.iml

libs/openpgp-api-lib/.tx/config

@@ -0,0 +1,8 @@
+[main]
+host = https://www.transifex.com
+lang_map = af_ZA: af-rZA, am_ET: am-rET, ar_AE: ar-rAE, ar_BH: ar-rBH, ar_DZ: ar-rDZ, ar_EG: ar-rEG, ar_IQ: ar-rIQ, ar_JO: ar-rJO, ar_KW: ar-rKW, ar_LB: ar-rLB, ar_LY: ar-rLY, ar_MA: ar-rMA, ar_OM: ar-rOM, ar_QA: ar-rQA, ar_SA: ar-rSA, ar_SY: ar-rSY, ar_TN: ar-rTN, ar_YE: ar-rYE, arn_CL: arn-rCL, as_IN: as-rIN, az_AZ: az-rAZ, ba_RU: ba-rRU, be_BY: be-rBY, bg_BG: bg-rBG, bn_BD: bn-rBD, bn_IN: bn-rIN, bo_CN: bo-rCN, br_FR: br-rFR, bs_BA: bs-rBA, ca_ES: ca-rES, co_FR: co-rFR, cs_CZ: cs-rCZ, cy_GB: cy-rGB, da_DK: da-rDK, de_AT: de-rAT, de_CH: de-rCH, de_DE: de-rDE, de_LI: de-rLI, de_LU: de-rLU, dsb_DE: dsb-rDE, dv_MV: dv-rMV, el_GR: el-rGR, en_AU: en-rAU, en_BZ: en-rBZ, en_CA: en-rCA, en_GB: en-rGB, en_IE: en-rIE, en_IN: en-rIN, en_JM: en-rJM, en_MY: en-rMY, en_NZ: en-rNZ, en_PH: en-rPH, en_SG: en-rSG, en_TT: en-rTT, en_US: en-rUS, en_ZA: en-rZA, en_ZW: en-rZW, es_AR: es-rAR, es_BO: es-rBO, es_CL: es-rCL, es_CO: es-rCO, es_CR: es-rCR, es_DO: es-rDO, es_EC: es-rEC, es_ES: es-rES, es_GT: es-rGT, es_HN: es-rHN, es_MX: es-rMX, es_NI: es-rNI, es_PA: es-rPA, es_PE: es-rPE, es_PR: es-rPR, es_PY: es-rPY, es_SV: es-rSV, es_US: es-rUS, es_UY: es-rUY, es_VE: es-rVE, et_EE: et-rEE, eu_ES: eu-rES, fa_IR: fa-rIR, fi_FI: fi-rFI, fil_PH: fil-rPH, fo_FO: fo-rFO, fr_BE: fr-rBE, fr_CA: fr-rCA, fr_CH: fr-rCH, fr_FR: fr-rFR, fr_LU: fr-rLU, fr_MC: fr-rMC, fy_NL: fy-rNL, ga_IE: ga-rIE, gd_GB: gd-rGB, gl_ES: gl-rES, gsw_FR: gsw-rFR, gu_IN: gu-rIN, ha_NG: ha-rNG, hi_IN: hi-rIN, hr_BA: hr-rBA, hr_HR: hr-rHR, hsb_DE: hsb-rDE, hu_HU: hu-rHU, hy_AM: hy-rAM, id_ID: id-rID, ig_NG: ig-rNG, ii_CN: ii-rCN, is_IS: is-rIS, it_CH: it-rCH, it_IT: it-rIT, iu_CA: iu-rCA, ja_JP: ja-rJP, ka_GE: ka-rGE, kk_KZ: kk-rKZ, kl_GL: kl-rGL, km_KH: km-rKH, kn_IN: kn-rIN, ko_KR: ko-rKR, kok_IN: kok-rIN, ky_KG: ky-rKG, lb_LU: lb-rLU, lo_LA: lo-rLA, lt_LT: lt-rLT, lv_LV: lv-rLV, mi_NZ: mi-rNZ, mk_MK: mk-rMK, ml_IN: ml-rIN, mn_CN: mn-rCN, mn_MN: mn-rMN, moh_CA: moh-rCA, mr_IN: mr-rIN, ms_BN: ms-rBN, ms_MY: ms-rMY, mt_MT: mt-rMT, nb_NO: nb-rNO, ne_NP: ne-rNP, nl_BE: nl-rBE, nl_NL: nl-rNL, nn_NO: nn-rNO, nso_ZA: nso-rZA, oc_FR: oc-rFR, or_IN: or-rIN, pa_IN: pa-rIN, pl_PL: pl-rPL, prs_AF: prs-rAF, ps_AF: ps-rAF, pt_BR: pt-rBR, pt_PT: pt-rPT, qut_GT: qut-rGT, quz_BO: quz-rBO, quz_EC: quz-rEC, quz_PE: quz-rPE, rm_CH: rm-rCH, ro_RO: ro-rRO, ru_RU: ru-rRU, rw_RW: rw-rRW, sa_IN: sa-rIN, sah_RU: sah-rRU, se_FI: se-rFI, se_NO: se-rNO, se_SE: se-rSE, si_LK: si-rLK, sk_SK: sk-rSK, sl_SI: sl-rSI, sma_NO: sma-rNO, sma_SE: sma-rSE, smj_NO: smj-rNO, smj_SE: smj-rSE, smn_FI: smn-rFI, sms_FI: sms-rFI, sq_AL: sq-rAL, sr_BA: sr-rBA, sr_CS: sr-rCS, sr_ME: sr-rME, sr_RS: sr-rRS, sv_FI: sv-rFI, sv_SE: sv-rSE, sw_KE: sw-rKE, syr_SY: syr-rSY, ta_IN: ta-rIN, te_IN: te-rIN, tg_TJ: tg-rTJ, th_TH: th-rTH, tk_TM: tk-rTM, tn_ZA: tn-rZA, tr_TR: tr-rTR, tt_RU: tt-rRU, tzm_DZ: tzm-rDZ, ug_CN: ug-rCN, uk_UA: uk-rUA, ur_PK: ur-rPK, uz_UZ: uz-rUZ, vi_VN: vi-rVN, wo_SN: wo-rSN, xh_ZA: xh-rZA, yo_NG: yo-rNG, zh_CN: zh-rCN, zh_HK: zh-rHK, zh_MO: zh-rMO, zh_SG: zh-rSG, zh_TW: zh-rTW, zu_ZA: zu-rZA, no_NO: no-rNO, he_IL: iw-rIL, he: iw
+
+[open-keychain.api-strings]
+file_filter = res/values-<lang>/strings.xml
+source_file = res/values/strings.xml
+source_lang = en

libs/openpgp-api-lib/AndroidManifest.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.openintents.openpgp"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="9"
+        android:targetSdkVersion="19" />
+
+    <application/>
+
+</manifest>

libs/openpgp-api-lib/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
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+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
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+   2. Grant of Copyright License. Subject to the terms and conditions of
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libs/openpgp-api-lib/README.md

@@ -0,0 +1,21 @@
+# OpenPGP API library
+
+The OpenPGP API provides methods to execute OpenPGP operations, such as sign, encrypt, decrypt, verify, and more without user interaction from background threads. This is done by connecting your client application to a remote service provided by [OpenKeychain](http://www.openkeychain.org) or other OpenPGP providers.
+
+For usage instructions, please consult our Wiki page about the [OpenPGP API](https://github.com/open-keychain/open-keychain/wiki/OpenPGP-API).
+
+License
+=======
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+

libs/openpgp-api-lib/build.gradle

@@ -0,0 +1,35 @@
+// please leave this here, so this library builds on its own
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.12.2'
+    }
+}
+
+apply plugin: 'android-library'
+
+android {
+    compileSdkVersion 19
+    buildToolsVersion '19.1'
+    
+    // NOTE: We are using the old folder structure to also support Eclipse
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = ['src']
+            resources.srcDirs = ['src']
+            aidl.srcDirs = ['src']
+            renderscript.srcDirs = ['src']
+            res.srcDirs = ['res']
+            assets.srcDirs = ['assets']
+        }
+    }
+    
+    // Do not abort build if lint finds errors
+    lintOptions {
+        abortOnError false
+    }
+}

libs/openpgp-api-lib/build.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="keychain-api-library" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>

libs/openpgp-api-lib/proguard-project.txt

@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

libs/openpgp-api-lib/project.properties

@@ -12,6 +12,4 @@
 
 # Project target.
 target=android-19
-android.library.reference.1=libs/minidns
+android.library=true
-android.library.reference.2=libs/openpgp-api-lib
-android.library.reference.3=libs/MemorizingTrustManager

libs/openpgp-api-lib/res/values-cs/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">Žádný</string>
+  <string name="openpgp_install_openkeychain_via">Instalovat OpenKeychain pomocí %s</string>
+</resources>

libs/openpgp-api-lib/res/values-de/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">Keine Auswahl</string>
+  <string name="openpgp_install_openkeychain_via">Installiere OpenKeychain mit %s</string>
+</resources>

libs/openpgp-api-lib/res/values-es/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">Ninguno</string>
+  <string name="openpgp_install_openkeychain_via">Instalar OpenKeychain mediante %s</string>
+</resources>

libs/openpgp-api-lib/res/values-et/strings.xml

@@ -0,0 +1,2 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources/>

libs/openpgp-api-lib/res/values-fi/strings.xml

@@ -0,0 +1,2 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources/>

libs/openpgp-api-lib/res/values-fr/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">Aucun</string>
+  <string name="openpgp_install_openkeychain_via">Installer OpenKeychain par %s</string>
+</resources>

libs/openpgp-api-lib/res/values-is/strings.xml

@@ -0,0 +1,2 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources/>

libs/openpgp-api-lib/res/values-it/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">Nessuno</string>
+  <string name="openpgp_install_openkeychain_via">Installa OpenKeychain via %s</string>
+</resources>

libs/openpgp-api-lib/res/values-ja/strings.xml

@@ -0,0 +1,5 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources>
+  <string name="openpgp_list_preference_none">無し</string>
+  <string name="openpgp_install_openkeychain_via">%s 経由でOpenKeychainをインストール</string>
+</resources>

libs/openpgp-api-lib/res/values-nl/strings.xml

@@ -0,0 +1,2 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources/>

libs/openpgp-api-lib/res/values-pl/strings.xml

@@ -0,0 +1,2 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources/>