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Started using ACME

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This commit is contained in:
Norbi Peti 2017-06-01 11:55:13 +02:00
parent deb44806ce
commit e05c7230a6
3 changed files with 392 additions and 0 deletions
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41
pom.xml
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@ -31,6 +31,31 @@
<target>1.8</target> <target>1.8</target>
</configuration> </configuration>
</plugin> </plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.2</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<artifactSet>
<includes>
<include>org.shredzone.acme4j:acme4j-client</include>
</includes>
</artifactSet>
<pluginExecution>
<action>
<execute />
</action>
</pluginExecution>
</configuration>
</execution>
</executions>
</plugin>
</plugins> </plugins>
</build> </build>
<properties> <properties>
@ -87,5 +112,21 @@
<artifactId>ButtonCore</artifactId> <artifactId>ButtonCore</artifactId>
<version>master-SNAPSHOT</version> <version>master-SNAPSHOT</version>
</dependency> </dependency>
<dependency>
<groupId>org.shredzone.acme4j</groupId>
<artifactId>acme4j-client</artifactId>
<version>0.10</version>
</dependency>
<dependency>
<groupId>org.shredzone.acme4j</groupId>
<artifactId>acme4j-utils</artifactId>
<version>0.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on -->
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.57</version>
</dependency>
</dependencies> </dependencies>
</project> </project>

331
src/buttondevteam/website/AcmeClient.java Normal file
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@ -0,0 +1,331 @@
/*
* acme4j - Java ACME client
*
* Copyright (C) 2015 Richard "Shred" Körber
* http://acme4j.shredzone.org
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/ //Modified
package buttondevteam.website;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.net.URI;
import java.security.KeyPair;
import java.security.Security;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Collection;
import javax.swing.JOptionPane;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.shredzone.acme4j.*;
import org.shredzone.acme4j.challenge.Challenge;
import org.shredzone.acme4j.challenge.Http01Challenge;
import org.shredzone.acme4j.exception.AcmeConflictException;
import org.shredzone.acme4j.exception.AcmeException;
import org.shredzone.acme4j.util.CSRBuilder;
import org.shredzone.acme4j.util.CertificateUtils;
import org.shredzone.acme4j.util.KeyPairUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import buttondevteam.lib.TBMCCoreAPI;
/**
* A simple client test tool.
* <p>
* Pass the names of the domains as parameters.
*/
public class AcmeClient {
// File name of the User Key Pair
private static final File USER_KEY_FILE = new File("user.key");
// File name of the Domain Key Pair
private static final File DOMAIN_KEY_FILE = new File("domain.key");
// File name of the CSR
private static final File DOMAIN_CSR_FILE = new File("domain.csr");
// File name of the signed certificate
private static final File DOMAIN_CHAIN_FILE = new File("domain-chain.crt");
// RSA key size of generated key pairs
private static final int KEY_SIZE = 2048;
private static final Logger LOG = LoggerFactory.getLogger(AcmeClient.class);
/**
* Generates a certificate for the given domains. Also takes care for the registration process.
*
* @param domains
* Domains to get a common certificate for
*/
public void fetchCertificate(Collection<String> domains) throws IOException, AcmeException {
// Load the user key file. If there is no key file, create a new one.
// Keep this key pair in a safe place! In a production environment, you will not be
// able to access your account again if you should lose the key pair.
KeyPair userKeyPair = loadOrCreateKeyPair(USER_KEY_FILE);
// Create a session for Let's Encrypt.
// Use "acme://letsencrypt.org" for production server
Session session = new Session("acme://letsencrypt.org" + (TBMCCoreAPI.IsTestServer() ? "/staging" : ""),
userKeyPair);
// Get the Registration to the account.
// If there is no account yet, create a new one.
Registration reg = findOrRegisterAccount(session);
// Separately authorize every requested domain.
for (String domain : domains) {
authorize(reg, domain);
}
// Load or create a key pair for the domains. This should not be the userKeyPair!
KeyPair domainKeyPair = loadOrCreateKeyPair(DOMAIN_KEY_FILE);
// Generate a CSR for all of the domains, and sign it with the domain key pair.
CSRBuilder csrb = new CSRBuilder();
csrb.addDomains(domains);
csrb.sign(domainKeyPair);
// Write the CSR to a file, for later use.
try (Writer out = new FileWriter(DOMAIN_CSR_FILE)) {
csrb.write(out);
}
// Now request a signed certificate.
Certificate certificate = reg.requestCertificate(csrb.getEncoded());
LOG.info("Success! The certificate for domains " + domains + " has been generated!");
LOG.info("Certificate URI: " + certificate.getLocation());
// Download the leaf certificate and certificate chain.
X509Certificate cert = certificate.download();
X509Certificate[] chain = certificate.downloadChain();
// Write a combined file containing the certificate and chain.
try (FileWriter fw = new FileWriter(DOMAIN_CHAIN_FILE)) {
CertificateUtils.writeX509CertificateChain(fw, cert, chain);
}
// That's all! Configure your web server to use the DOMAIN_KEY_FILE and
// DOMAIN_CHAIN_FILE for the requested domans.
}
/**
* Loads a key pair from specified file. If the file does not exist, a new key pair is generated and saved.
*
* @return {@link KeyPair}.
*/
private KeyPair loadOrCreateKeyPair(File file) throws IOException {
if (file.exists()) {
try (FileReader fr = new FileReader(file)) {
return KeyPairUtils.readKeyPair(fr);
}
} else {
KeyPair domainKeyPair = KeyPairUtils.createKeyPair(KEY_SIZE);
try (FileWriter fw = new FileWriter(file)) {
KeyPairUtils.writeKeyPair(domainKeyPair, fw);
}
return domainKeyPair;
}
}
/**
* Finds your {@link Registration} at the ACME server. It will be found by your user's public key. If your key is not known to the server yet, a new registration will be created.
* <p>
* This is a simple way of finding your {@link Registration}. A better way is to get the URI of your new registration with {@link Registration#getLocation()} and store it somewhere. If you need to
* get access to your account later, reconnect to it via {@link Registration#bind(Session, URI)} by using the stored location.
*
* @param session
* {@link Session} to bind with
* @return {@link Registration} connected to your account
*/
private Registration findOrRegisterAccount(Session session) throws AcmeException {
Registration reg;
try {
// Try to create a new Registration.
reg = new RegistrationBuilder().create(session);
LOG.info("Registered a new user, URI: " + reg.getLocation());
// This is a new account. Let the user accept the Terms of Service.
// We won't be able to authorize domains until the ToS is accepted.
URI agreement = reg.getAgreement();
LOG.info("Terms of Service: " + agreement);
acceptAgreement(reg, agreement);
} catch (AcmeConflictException ex) {
// The Key Pair is already registered. getLocation() contains the
// URL of the existing registration's location. Bind it to the session.
reg = Registration.bind(session, ex.getLocation());
LOG.info("Account does already exist, URI: " + reg.getLocation(), ex);
}
return reg;
}
/**
* Authorize a domain. It will be associated with your account, so you will be able to retrieve a signed certificate for the domain later.
* <p>
* You need separate authorizations for subdomains (e.g. "www" subdomain). Wildcard certificates are not currently supported.
*
* @param reg
* {@link Registration} of your account
* @param domain
* Name of the domain to authorize
*/
private void authorize(Registration reg, String domain) throws AcmeException {
// Authorize the domain.
Authorization auth = reg.authorizeDomain(domain);
LOG.info("Authorization for domain " + domain);
// Find the desired challenge and prepare it.
Challenge challenge = httpChallenge(auth, domain);
if (challenge == null) {
throw new AcmeException("No challenge found");
}
// If the challenge is already verified, there's no need to execute it again.
if (challenge.getStatus() == Status.VALID) {
return;
}
// Now trigger the challenge.
challenge.trigger();
// Poll for the challenge to complete.
try {
int attempts = 10;
while (challenge.getStatus() != Status.VALID && attempts-- > 0) {
// Did the authorization fail?
if (challenge.getStatus() == Status.INVALID) {
throw new AcmeException("Challenge failed... Giving up.");
}
// Wait for a few seconds
Thread.sleep(3000L);
// Then update the status
challenge.update();
}
} catch (InterruptedException ex) {
LOG.error("interrupted", ex);
Thread.currentThread().interrupt();
}
// All reattempts are used up and there is still no valid authorization?
if (challenge.getStatus() != Status.VALID) {
throw new AcmeException("Failed to pass the challenge for domain " + domain + ", ... Giving up.");
}
}
/**
* Prepares a HTTP challenge.
* <p>
* The verification of this challenge expects a file with a certain content to be reachable at a given path under the domain to be tested.
* <p>
* This example outputs instructions that need to be executed manually. In a production environment, you would rather generate this file automatically, or maybe use a servlet that returns
* {@link Http01Challenge#getAuthorization()}.
*
* @param auth
* {@link Authorization} to find the challenge in
* @param domain
* Domain name to be authorized
* @return {@link Challenge} to verify
*/
public Challenge httpChallenge(Authorization auth, String domain) throws AcmeException {
// Find a single http-01 challenge
Http01Challenge challenge = auth.findChallenge(Http01Challenge.TYPE);
if (challenge == null) {
throw new AcmeException("Found no " + Http01Challenge.TYPE + " challenge, don't know what to do...");
}
// Output the challenge, wait for acknowledge...
LOG.info("Please create a file in your web server's base directory.");
LOG.info("It must be reachable at: http://" + domain + "/.well-known/acme-challenge/" + challenge.getToken());
LOG.info("File name: " + challenge.getToken());
LOG.info("Content: " + challenge.getAuthorization());
LOG.info("The file must not contain any leading or trailing whitespaces or line breaks!");
LOG.info("If you're ready, dismiss the dialog...");
StringBuilder message = new StringBuilder();
message.append("Please create a file in your web server's base directory.\n\n");
message.append("http://").append(domain).append("/.well-known/acme-challenge/").append(challenge.getToken())
.append("\n\n");
message.append("Content:\n\n");
message.append(challenge.getAuthorization());
acceptChallenge(message.toString());
return challenge;
}
/**
* Presents the instructions for preparing the challenge validation, and waits for dismissal. If the user cancelled the dialog, an exception is thrown.
*
* @param message
* Instructions to be shown in the dialog
*/
public void acceptChallenge(String message) throws AcmeException {
int option = JOptionPane.showConfirmDialog(null, message, "Prepare Challenge", JOptionPane.OK_CANCEL_OPTION);
if (option == JOptionPane.CANCEL_OPTION) {
throw new AcmeException("User cancelled the challenge");
}
}
/**
* Presents the user a link to the Terms of Service, and asks for confirmation. If the user denies confirmation, an exception is thrown.
*
* @param reg
* {@link Registration} User's registration
* @param agreement
* {@link URI} of the Terms of Service
*/
public void acceptAgreement(Registration reg, URI agreement) throws AcmeException {
int option = JOptionPane.showConfirmDialog(null, "Do you accept the Terms of Service?\n\n" + agreement,
"Accept ToS", JOptionPane.YES_NO_OPTION);
if (option == JOptionPane.NO_OPTION) {
throw new AcmeException("User did not accept Terms of Service");
}
// Motify the Registration and accept the agreement
reg.modify().setAgreement(agreement).commit();
LOG.info("Updated user's ToS");
}
/**
* Invokes this example.
*
* @param args
* Domains to get a certificate for
*/
public static void main(String... args) {
if (args.length == 0) {
System.err.println("Usage: ClientTest <domain>...");
System.exit(1);
}
LOG.info("Starting up...");
Security.addProvider(new BouncyCastleProvider());
Collection<String> domains = Arrays.asList(args);
try {
AcmeClient ct = new AcmeClient();
ct.fetchCertificate(domains);
} catch (Exception ex) {
LOG.error("Failed to get a certificate for domains " + domains, ex);
}
}
}

20
src/buttondevteam/website/page/AcmeChallengePage.java Normal file
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@ -0,0 +1,20 @@
package buttondevteam.website.page;
import com.sun.net.httpserver.HttpExchange;
import buttondevteam.website.io.Response;
public class AcmeChallengePage extends Page {
@Override
public String GetName() {
return ".well-known/acme-challenge";
}
@Override
public Response handlePage(HttpExchange exchange) {
// TODO Auto-generated method stub
return null;
}
}