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add basic auth support

This commit is contained in:
Reinhold Degenfellner 2018-11-30 19:51:56 +01:00 committed by rfscholte
parent 7c10128c12
commit e9d72b79f6
1 changed files with 52 additions and 10 deletions
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62
maven-wrapper/src/main/java/org/apache/maven/wrapper/DefaultDownloader.java
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@ -16,16 +16,9 @@
package org.apache.maven.wrapper;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.io.*;
import java.lang.reflect.Method;
import java.net.*;
/**
* @author Hans Dockter
@ -79,6 +72,7 @@ public class DefaultDownloader implements Downloader {
URL url = address.toURL();
out = new BufferedOutputStream(new FileOutputStream(destination));
conn = url.openConnection();
addBasicAuthentication(address, conn);
final String userAgentValue = calculateUserAgent();
conn.setRequestProperty("User-Agent", userAgentValue);
in = conn.getInputStream();
@ -104,6 +98,54 @@ public class DefaultDownloader implements Downloader {
}
}
private void addBasicAuthentication(URI address, URLConnection connection) throws IOException {
String userInfo = calculateUserInfo(address);
if (userInfo == null) {
return;
}
if (!"https".equals(address.getScheme())) {
Logger.info("WARNING Using HTTP Basic Authentication over an insecure connection to download the Gradle distribution. Please consider using HTTPS.");
}
connection.setRequestProperty("Authorization", "Basic " + base64Encode(userInfo));
}
/**
* Base64 encode user info for HTTP Basic Authentication.
*
* Try to use {@literal java.util.Base64} encoder which is available starting with Java 8.
* Fallback to {@literal javax.xml.bind.DatatypeConverter} from JAXB which is available starting with Java 6 but is not anymore in Java 9.
* Fortunately, both of these two Base64 encoders implement the right Base64 flavor, the one that does not split the output in multiple lines.
*
* @param userInfo user info
* @return Base64 encoded user info
* @throws RuntimeException if no public Base64 encoder is available on this JVM
*/
private String base64Encode(String userInfo) {
ClassLoader loader = getClass().getClassLoader();
try {
Method getEncoderMethod = loader.loadClass("java.util.Base64").getMethod("getEncoder");
Method encodeMethod = loader.loadClass("java.util.Base64$Encoder").getMethod("encodeToString", byte[].class);
Object encoder = getEncoderMethod.invoke(null);
return (String) encodeMethod.invoke(encoder, new Object[]{userInfo.getBytes("UTF-8")});
} catch (Exception java7OrEarlier) {
try {
Method encodeMethod = loader.loadClass("javax.xml.bind.DatatypeConverter").getMethod("printBase64Binary", byte[].class);
return (String) encodeMethod.invoke(null, new Object[]{userInfo.getBytes("UTF-8")});
} catch (Exception java5OrEarlier) {
throw new RuntimeException("Downloading Gradle distributions with HTTP Basic Authentication is not supported on your JVM.", java5OrEarlier);
}
}
}
private String calculateUserInfo(URI uri) {
String username = System.getProperty("maven.wrapperUser");
String password = System.getProperty("maven.wrapperPassword");
if (username != null && password != null) {
return username + ':' + password;
}
return uri.getUserInfo();
}
private String calculateUserAgent() {
String appVersion = applicationVersion;