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wkd-java
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Paul Schaub 2022-02-21 11:51:30 +01:00
parent e215eb2f0a
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Signed by: vanitasvitae
GPG Key ID: 62BEE9264BF17311
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# SPDX-FileCopyrightText: 2021 Paul Schaub <info@pgpainless.org>
#
# SPDX-License-Identifier: CC0-1.0
.idea
.gradle
out/
build/
bin/
libs/
*/build
*.iws
*.iml
*.ipr
*.class
*.log
*.jar
gradle.properties
!gradle-wrapper.jar
.classpath
.project
.settings/
pgpainless-core/.classpath
pgpainless-core/.project
pgpainless-core/.settings/
push_html.sh

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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: SOP-Java
Upstream-Contact: Paul Schaub <info@pgpainless.org>
Source: https://pgpainless.org
# Sample paragraph, commented out:
#
# Files: src/*
# Copyright: $YEAR $NAME <$CONTACT>
# License: ...
# Gradle build tool
Files: gradle*
Copyright: 2015 the original author or authors.
License: Apache-2.0

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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,
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Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
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END OF TERMS AND CONDITIONS
============================================================================
# Licenses for included dependencies
## [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0)
* info.picocli:picocli
## [Eclipe Public License 2.0](https://www.eclipse.org/legal/epl-2.0/)
* org.junit.jupiter:junit-jupiter-api
* org.junit.jupiter:junit-jupiter-params
* org.junit.jupiter:junit-jupiter-engine
## [MIT License](https://opensource.org/licenses/MIT)
* com.ginsberg:junit5-system-exit
* org.mockito:mockito-core

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Apache License
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"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).
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9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
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6
README.md
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<!--
SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
SPDX-License-Identifier: Apache-2.0
-->
# Web Key Directory for Java

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// SPDX-FileCopyrightText: 2022 Paul Schaub <info@pgpainless.org>
//
// SPDX-License-Identifier: Apache-2.0
buildscript {
repositories {
maven {
url "https://plugins.gradle.org/m2/"
}
mavenLocal()
mavenCentral()
}
dependencies {
classpath "gradle.plugin.org.kt3k.gradle.plugin:coveralls-gradle-plugin:2.12.0"
}
}
plugins {
id 'ru.vyarus.animalsniffer' version '1.5.3'
}
apply from: 'version.gradle'
allprojects {
apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'eclipse'
apply plugin: 'jacoco'
apply plugin: 'checkstyle'
// For non-cli modules enable android api compatibility check
if (it.name.equals('wkd-java')) {
// animalsniffer
apply plugin: 'ru.vyarus.animalsniffer'
dependencies {
signature "net.sf.androidscents.signature:android-api-level-${minAndroidSdk}:2.3.3_r2@signature"
}
animalsniffer {
sourceSets = [sourceSets.main]
}
}
// Only generate jar for submodules
// https://stackoverflow.com/a/25445035
jar {
onlyIf { !sourceSets.main.allSource.files.isEmpty() }
}
// checkstyle
checkstyle {
toolVersion = '8.18'
}
group 'org.pgpainless'
description = "Stateless OpenPGP Protocol API for Java"
version = shortVersion
sourceCompatibility = javaSourceCompatibility
repositories {
mavenCentral()
}
// Reproducible Builds
tasks.withType(AbstractArchiveTask) {
preserveFileTimestamps = false
reproducibleFileOrder = true
}
project.ext {
junitVersion = '5.8.2'
slf4jVersion = '1.7.32'
logbackVersion = '1.2.9'
rootConfigDir = new File(rootDir, 'config')
gitCommit = getGitCommit()
isContinuousIntegrationEnvironment = Boolean.parseBoolean(System.getenv('CI'))
isReleaseVersion = !isSnapshot
signingRequired = !(isSnapshot || isContinuousIntegrationEnvironment)
sonatypeCredentialsAvailable = project.hasProperty('sonatypeUsername') && project.hasProperty('sonatypePassword')
sonatypeSnapshotUrl = 'https://oss.sonatype.org/content/repositories/snapshots'
sonatypeStagingUrl = 'https://oss.sonatype.org/service/local/staging/deploy/maven2'
}
if (isSnapshot) {
version = version + '-SNAPSHOT'
}
def projectDirFile = new File("$projectDir")
if (!project.ext.isSnapshot && !'git describe --exact-match HEAD'.execute(null, projectDirFile).text.trim().equals(ext.shortVersion)) {
throw new InvalidUserDataException('Untagged version detected! Please tag every release.')
}
if (!version.endsWith('-SNAPSHOT') && version != 'git tag --points-at HEAD'.execute(null, projectDirFile).text.trim()) {
throw new InvalidUserDataException(
'Tag mismatch detected, version is ' + version + ' but should be ' +
'git tag --points-at HEAD'.execute(null, projectDirFile).text.trim())
}
jacoco {
toolVersion = "0.8.7"
}
jacocoTestReport {
dependsOn test
sourceDirectories.setFrom(project.files(sourceSets.main.allSource.srcDirs))
classDirectories.setFrom(project.files(sourceSets.main.output))
reports {
xml.enabled true
}
}
test {
useJUnitPlatform()
testLogging {
events "passed", "skipped", "failed"
exceptionFormat "full"
}
}
}
subprojects {
apply plugin: 'maven-publish'
apply plugin: 'signing'
task sourcesJar(type: Jar, dependsOn: classes) {
classifier = 'sources'
from sourceSets.main.allSource
}
task javadocJar(type: Jar, dependsOn: javadoc) {
classifier = 'javadoc'
from javadoc.destinationDir
}
task testsJar(type: Jar, dependsOn: testClasses) {
classifier = 'tests'
from sourceSets.test.output
}
publishing {
publications {
mavenJava(MavenPublication) {
from components.java
artifact sourcesJar
artifact javadocJar
artifact testsJar
pom {
name = 'WKD for Java'
description = 'OpenPGP Web Key Directory for Java'
url = 'https://github.com/pgpainless/wkd-java'
inceptionYear = '2022'
scm {
url = 'https://github.com/pgpainless/wkd-java'
connection = 'scm:https://github.com/pgpainless/wkd-java'
developerConnection = 'scm:git://github.com/pgpainless/wkd-java.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 = 'vanitasvitae'
name = 'Paul Schaub'
email = 'vanitasvitae@fsfe.org'
}
}
}
}
}
repositories {
if (sonatypeCredentialsAvailable) {
maven {
url isSnapshot ? sonatypeSnapshotUrl : sonatypeStagingUrl
credentials {
username = sonatypeUsername
password = sonatypePassword
}
}
}
}
}
signing {
useGpgCmd()
required { signingRequired }
sign publishing.publications.mavenJava
}
}
def getGitCommit() {
def projectDirFile = new File("$projectDir")
def dotGit = new File("$projectDir/.git")
if (!dotGit.isDirectory()) return 'non-git build'
def cmd = 'git describe --always --tags --dirty=+'
def proc = cmd.execute(null, projectDirFile)
def gitCommit = proc.text.trim()
assert !gitCommit.isEmpty()
def srCmd = 'git symbolic-ref --short HEAD'
def srProc = srCmd.execute(null, projectDirFile)
srProc.waitForOrKill(10 * 1000)
if (srProc.exitValue() == 0) {
// Only add the information if the git command was
// successful. There may be no symbolic reference for HEAD if
// e.g. in detached mode.
def symbolicReference = srProc.text.trim()
assert !symbolicReference.isEmpty()
gitCommit += "-$symbolicReference"
}
gitCommit
}
apply plugin: "com.github.kt3k.coveralls"
coveralls {
sourceDirs = files(subprojects.sourceSets.main.allSource.srcDirs).files.absolutePath
}
task jacocoRootReport(type: JacocoReport) {
dependsOn = subprojects.jacocoTestReport
sourceDirectories.setFrom(files(subprojects.sourceSets.main.allSource.srcDirs))
classDirectories.setFrom(files(subprojects.sourceSets.main.output))
executionData.setFrom(files(subprojects.jacocoTestReport.executionData))
reports {
xml.enabled true
xml.destination file("${buildDir}/reports/jacoco/test/jacocoTestReport.xml")
}
// We could remove the following setOnlyIf line, but then
// jacocoRootReport would silently be SKIPPED if something with
// the projectsWithUnitTests is wrong (e.g. a project is missing
// in there).
setOnlyIf { true }
}
task javadocAll(type: Javadoc) {
def currentJavaVersion = JavaVersion.current()
if (currentJavaVersion.compareTo(JavaVersion.VERSION_1_9) >= 0) {
options.addStringOption("-release", "8");
}
source subprojects.collect {project ->
project.sourceSets.main.allJava }
destinationDir = new File(buildDir, 'javadoc')
// Might need a classpath
classpath = files(subprojects.collect {project ->
project.sourceSets.main.compileClasspath})
options.linkSource = true
options.use = true
options.links = [
"https://docs.oracle.com/javase/${sourceCompatibility.getMajorVersion()}/docs/api/",
] as String[]
}

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gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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gradlew vendored Executable file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# 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
#
# https://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.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# 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\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MSYS* | MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$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 "$darwin" = "false" -a "$nonstop" = "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 or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# 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=`expr $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
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

89
gradlew.bat vendored Normal file
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@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
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@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="-Xmx64m" "-Xms64m"
@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 execute
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 execute
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
: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 %*
: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

9
settings.gradle Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <info@pgpainless.org>
//
// SPDX-License-Identifier: CC0-1.0
rootProject.name = 'WKD-Java'
include 'wkd-java',
'wkd-java-cli'

12
version.gradle Normal file
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// SPDX-FileCopyrightText: 2021 Paul Schaub <info@pgpainless.org>
//
// SPDX-License-Identifier: CC0-1.0
allprojects {
ext {
shortVersion = '0.1'
isSnapshot = true
minAndroidSdk = 10
javaSourceCompatibility = 1.8
}
}

7
wkd-java-cli/README.md Normal file
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<!--
SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
SPDX-License-Identifier: Apache-2.0
-->
# Command Line Interface for the Web Key Directory

27
wkd-java-cli/build.gradle Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
plugins {
id 'application'
}
group 'org.pgpainless'
repositories {
mavenCentral()
}
dependencies {
testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
implementation project(':wkd-java')
// Logging
testImplementation "ch.qos.logback:logback-classic:$logbackVersion"
}
test {
useJUnitPlatform()
}

9
wkd-java-cli/src/main/java/pgp/wkd/cli/WKDCLI.java Normal file
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@ -0,0 +1,9 @@
// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd.cli;
public class WKDCLI {
}

17
wkd-java-cli/src/test/java/pgp/wkd/cli/WKDCLITest.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd.cli;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class WKDCLITest {
@Test
public void dummyTest() {
assertTrue(true);
}
}

9
wkd-java/README.md Normal file
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<!--
SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
SPDX-License-Identifier: Apache-2.0
-->
# WKD-Java
API Implementation of the Web Key Directory Specification for Java.

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wkd-java/build.gradle Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
plugins {
id 'java-library'
}
group 'org.pgpainless'
repositories {
mavenCentral()
}
dependencies {
testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
// Logging
api "org.slf4j:slf4j-api:$slf4jVersion"
testImplementation "ch.qos.logback:logback-classic:$logbackVersion"
// Z-Base32
implementation 'com.sandinh:zbase32-commons-codec:1.0.0'
}
test {
useJUnitPlatform()
}

13
wkd-java/src/main/java/pgp/wkd/IWKDFetcher.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd;
import java.io.IOException;
import java.io.InputStream;
public interface IWKDFetcher {
InputStream fetch(WKDAddress address) throws IOException;
}

86
wkd-java/src/main/java/pgp/wkd/JavaHttpRequestWKDFetcher.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd;
import java.io.IOException;
import java.io.InputStream;
import java.net.ConnectException;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JavaHttpRequestWKDFetcher implements IWKDFetcher {
private static final Logger LOGGER = LoggerFactory.getLogger(JavaHttpRequestWKDFetcher.class);
@Override
public InputStream fetch(WKDAddress address) throws IOException {
URI advanced = address.getAdvancedMethodURI();
IOException advancedException;
try {
return tryFetchUri(advanced);
} catch (IOException e) {
advancedException = e;
LOGGER.debug("Could not fetch key using advanced method from " + advanced.toString(), e);
}
URI direct = address.getDirectMethodURI();
try {
return tryFetchUri(direct);
} catch (IOException e) {
advancedException.addSuppressed(e);
LOGGER.debug("Could not fetch key using direct method from " + direct.toString(), e);
throw advancedException;
}
}
private InputStream tryFetchUri(URI uri) throws IOException {
HttpURLConnection con = getConnection(uri);
con.setRequestMethod("GET");
con.setConnectTimeout(5000);
con.setReadTimeout(5000);
con.setInstanceFollowRedirects(false);
int status = con.getResponseCode();
if (status != 200) {
throw new ConnectException("Connection was unsuccessful");
}
LOGGER.debug("Successfully fetched key from " + uri);
return con.getInputStream();
}
private HttpURLConnection getConnection(URI uri) throws IOException {
URL url = uri.toURL();
return (HttpURLConnection) url.openConnection();
}
public static void main(String[] args) {
if (args.length != 1) {
throw new IllegalArgumentException("Expect a single argument email address");
}
String email = args[0];
WKDAddress address = WKDAddress.fromEmail(email);
JavaHttpRequestWKDFetcher fetch = new JavaHttpRequestWKDFetcher();
try {
InputStream inputStream = fetch.fetch(address);
byte[] buf = new byte[4096];
int read;
while ((read = inputStream.read(buf)) != -1) {
System.out.write(buf, 0, read);
}
inputStream.close();
System.exit(0);
} catch (IOException e) {
LOGGER.debug("Could not fetch key.", e);
System.exit(1);
}
}
}

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wkd-java/src/main/java/pgp/wkd/WKDAddress.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd;
import org.apache.commons.codec.binary.ZBase32;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class WKDAddress {
private static final String SCHEME = "https://";
private static final String ADV_SUBDOMAIN = "openpgpkey.";
private static final String DIRECT_WELL_KNOWN = "/.well-known/openpgpkey/hu/";
private static String ADV_WELL_KNOWN(String domain) {
return "/.well-known/openpgpkey/" + domain + "/hu/";
}
// RegEx for Email Addresses.
// https://www.baeldung.com/java-email-validation-regex#regular-expression-by-rfc-5322-for-email-validation
// Modified by adding capture groups '()' for local and domain part
private static final Pattern PATTERN_EMAIL = Pattern.compile("^([a-zA-Z0-9_!#$%&'*+/=?`{|}~^.-]+)@([a-zA-Z0-9.-]+)$");
private static final Charset utf8 = Charset.forName("UTF8");
private static final ZBase32 zBase32 = new ZBase32();
private final String localPart;
private final String domainPart;
private final String zbase32LocalPart;
private final String percentEncodedLocalPart;
public WKDAddress(String localPart, String domainPart) {
this.localPart = localPart;
this.domainPart = domainPart.toLowerCase();
this.zbase32LocalPart = zbase32(this.localPart);
this.percentEncodedLocalPart = percentEncode(this.localPart);
}
public static WKDAddress fromEmail(String email) {
MailAddress mailAddress = parseMailAddress(email);
return new WKDAddress(mailAddress.getLocalPart(), mailAddress.getDomainPart());
}
public URI getDirectMethodURI() {
return URI.create(SCHEME + domainPart + DIRECT_WELL_KNOWN + zbase32LocalPart + "?l=" + percentEncodedLocalPart);
}
public URI getAdvancedMethodURI() {
return URI.create(SCHEME + ADV_SUBDOMAIN + domainPart + ADV_WELL_KNOWN(domainPart) + zbase32LocalPart + "?l=" + percentEncodedLocalPart);
}
private String zbase32(String localPart) {
MessageDigest sha1;
try {
sha1 = MessageDigest.getInstance("SHA1");
} catch (NoSuchAlgorithmException e) {
// SHA-1 is a MUST on JVM implementations
throw new AssertionError(e);
}
sha1.update(localPart.toLowerCase().getBytes(utf8));
byte[] digest = sha1.digest();
String base32KeyHandle = zBase32.encodeAsString(digest);
return base32KeyHandle;
}
private String percentEncode(String localPart) {
try {
return URLEncoder.encode(localPart, "UTF-8");
} catch (UnsupportedEncodingException e) {
// UTF8 is a MUST on JVM implementations
throw new AssertionError(e);
}
}
private static MailAddress parseMailAddress(String email) {
Matcher matcher = PATTERN_EMAIL.matcher(email);
if (!matcher.matches()) {
throw new IllegalArgumentException("Invalid email address.");
}
String localPart = matcher.group(1);
String domainPart = matcher.group(2);
return new MailAddress(localPart, domainPart);
}
private static class MailAddress {
private final String localPart;
private final String domainPart;
MailAddress(String localPart, String domainPart) {
this.localPart = localPart;
this.domainPart = domainPart;
}
public String getLocalPart() {
return localPart;
}
public String getDomainPart() {
return domainPart;
}
}
}

30
wkd-java/src/main/java/pgp/wkd/WKDAddressHelper.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class WKDAddressHelper {
// Firstname Lastname <email@address> [Optional Comment]
// we are only interested in "email@address"
private static final Pattern PATTERN_USER_ID = Pattern.compile("^.*\\<([a-zA-Z0-9_!#$%&'*+/=?`{|}~^.-]+@[a-zA-Z0-9.-]+)\\>.*");
public static String emailFromUserId(String userId) {
Matcher matcher = PATTERN_USER_ID.matcher(userId);
if (!matcher.matches()) {
throw new IllegalArgumentException("User-ID does not follow excepted pattern \"Firstname Lastname <email.address> [Optional Comment]\"");
}
String email = matcher.group(1);
return email;
}
public static WKDAddress wkdAddressFromUserId(String userId) {
String email = emailFromUserId(userId);
return WKDAddress.fromEmail(email);
}
}

10
wkd-java/src/main/java/pgp/wkd/package-info.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
/**
* Utility classes related to the Web Key Directory Specification.
*
* @see <a href="https://datatracker.ietf.org/doc/draft-koch-openpgp-webkey-service/">OpenPGP Web Key Directory</a>
*/
package pgp.wkd;

79
wkd-java/src/test/java/pgp/wkd/WKDAddressTest.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package pgp.wkd;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.net.URI;
import java.util.Arrays;
import org.junit.jupiter.api.Test;
public class WKDAddressTest {
@Test
public void testAdvancedFromUserId() {
String userId = "Joe Doe <Joe.Doe@Example.ORG> [Work Address]";
URI expectedURI = URI.create("https://openpgpkey.example.org/.well-known/openpgpkey/example.org/hu/iy9q119eutrkn8s1mk4r39qejnbu3n5q?l=Joe.Doe");
WKDAddress address = WKDAddressHelper.wkdAddressFromUserId(userId);
URI actual = address.getAdvancedMethodURI();
assertEquals(expectedURI, actual);
}
@Test
public void testDirectFromUserId() {
String userId = "<alice@pgpainless.org>";
URI expected = URI.create("https://pgpainless.org/.well-known/openpgpkey/hu/kei1q4tipxxu1yj79k9kfukdhfy631xe?l=alice");
WKDAddress address = WKDAddressHelper.wkdAddressFromUserId(userId);
URI actual = address.getDirectMethodURI();
assertEquals(expected, actual);
}
@Test
public void testDirectFromEmail() {
String mailAddress = "Joe.Doe@Example.ORG";
URI expected = URI.create("https://example.org/.well-known/openpgpkey/hu/iy9q119eutrkn8s1mk4r39qejnbu3n5q?l=Joe.Doe");
WKDAddress address = WKDAddress.fromEmail(mailAddress);
URI actual = address.getDirectMethodURI();
assertEquals(expected, actual);
}
@Test
public void testAdvancedFromEmail() {
String mailAddress = "Joe.Doe@Example.ORG";
URI expected = URI.create("https://openpgpkey.example.org/.well-known/openpgpkey/example.org/hu/iy9q119eutrkn8s1mk4r39qejnbu3n5q?l=Joe.Doe");
WKDAddress address = WKDAddress.fromEmail(mailAddress);
URI actual = address.getAdvancedMethodURI();
assertEquals(expected, actual);
}
@Test
public void testFromInvalidUserid() {
for (String brokenUserId : Arrays.asList(
"Alice <alice>",
"Alice <alice@example.org",
"Alice",
"John Doe <john doe@example.org>",
"John Doe <john.doe@example org>",
"John Doe <john<example.org>",
"John Doe [The Real One]",
"<John Doe",
"Don Joeh>")) {
assertThrows(IllegalArgumentException.class, () -> WKDAddressHelper.wkdAddressFromUserId(brokenUserId));
}
}
@Test
public void testFromInvalidEmail() {
for (String brokenEmail : Arrays.asList("john.doe", "@example.org", "john doe@example.org", "john.doe@example org")) {
assertThrows(IllegalArgumentException.class, () -> WKDAddress.fromEmail(brokenEmail));
}
}
}