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Puts together an ActiveMQ OSGi bundle
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.logging.log4j.core.net;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.JarURLConnection;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import javax.net.ssl.HttpsURLConnection;
import org.apache.logging.log4j.core.config.ConfigurationFactory;
import org.apache.logging.log4j.core.net.ssl.LaxHostnameVerifier;
import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
import org.apache.logging.log4j.core.net.ssl.SslConfigurationFactory;
import org.apache.logging.log4j.core.util.AuthorizationProvider;
import org.apache.logging.log4j.util.PropertiesUtil;
import org.apache.logging.log4j.util.Strings;
/**
* Constructs an HTTPURLConnection. This class should be considered to be internal
*/
public class UrlConnectionFactory {
private static final int DEFAULT_TIMEOUT = 60000;
private static final int connectTimeoutMillis = DEFAULT_TIMEOUT;
private static final int readTimeoutMillis = DEFAULT_TIMEOUT;
private static final String JSON = "application/json";
private static final String XML = "application/xml";
private static final String PROPERTIES = "text/x-java-properties";
private static final String TEXT = "text/plain";
private static final String HTTP = "http";
private static final String HTTPS = "https";
private static final String JAR = "jar";
private static final String DEFAULT_ALLOWED_PROTOCOLS = "https, file, jar";
private static final String NO_PROTOCOLS = "_none";
public static final String ALLOWED_PROTOCOLS = "log4j2.Configuration.allowedProtocols";
@SuppressWarnings("unchecked")
public static T createConnection(final URL url, final long lastModifiedMillis,
final SslConfiguration sslConfiguration, final AuthorizationProvider authorizationProvider)
throws IOException {
final PropertiesUtil props = PropertiesUtil.getProperties();
final List allowed = Arrays.asList(Strings.splitList(props
.getStringProperty(ALLOWED_PROTOCOLS, DEFAULT_ALLOWED_PROTOCOLS).toLowerCase(Locale.ROOT)));
if (allowed.size() == 1 && NO_PROTOCOLS.equals(allowed.get(0))) {
throw new ProtocolException("No external protocols have been enabled");
}
final String protocol = url.getProtocol();
if (protocol == null) {
throw new ProtocolException("No protocol was specified on " + url.toString());
}
if (!allowed.contains(protocol)) {
throw new ProtocolException("Protocol " + protocol + " has not been enabled as an allowed protocol");
}
URLConnection urlConnection;
if (url.getProtocol().equals(HTTP) || url.getProtocol().equals(HTTPS)) {
final HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
if (authorizationProvider != null) {
authorizationProvider.addAuthorization(httpURLConnection);
}
httpURLConnection.setAllowUserInteraction(false);
httpURLConnection.setDoOutput(true);
httpURLConnection.setDoInput(true);
httpURLConnection.setRequestMethod("GET");
if (connectTimeoutMillis > 0) {
httpURLConnection.setConnectTimeout(connectTimeoutMillis);
}
if (readTimeoutMillis > 0) {
httpURLConnection.setReadTimeout(readTimeoutMillis);
}
final String[] fileParts = url.getFile().split("\\.");
final String type = fileParts[fileParts.length - 1].trim();
final String contentType = isXml(type) ? XML : isJson(type) ? JSON : isProperties(type) ? PROPERTIES : TEXT;
httpURLConnection.setRequestProperty("Content-Type", contentType);
if (lastModifiedMillis > 0) {
httpURLConnection.setIfModifiedSince(lastModifiedMillis);
}
if (url.getProtocol().equals(HTTPS) && sslConfiguration != null) {
((HttpsURLConnection) httpURLConnection).setSSLSocketFactory(sslConfiguration.getSslSocketFactory());
if (!sslConfiguration.isVerifyHostName()) {
((HttpsURLConnection) httpURLConnection).setHostnameVerifier(LaxHostnameVerifier.INSTANCE);
}
}
urlConnection = httpURLConnection;
} else if (url.getProtocol().equals(JAR)) {
urlConnection = url.openConnection();
urlConnection.setUseCaches(false);
} else {
urlConnection = url.openConnection();
}
return (T) urlConnection;
}
public static URLConnection createConnection(final URL url) throws IOException {
URLConnection urlConnection = null;
if (url.getProtocol().equals(HTTPS) || url.getProtocol().equals(HTTP)) {
final AuthorizationProvider provider = ConfigurationFactory.authorizationProvider(PropertiesUtil.getProperties());
urlConnection = createConnection(url, 0, SslConfigurationFactory.getSslConfiguration(), provider);
} else {
urlConnection = url.openConnection();
if (urlConnection instanceof JarURLConnection) {
// A "jar:" URL file remains open after the stream is closed, so do not cache it.
urlConnection.setUseCaches(false);
}
}
return urlConnection;
}
private static boolean isXml(final String type) {
return type.equalsIgnoreCase("xml");
}
private static boolean isJson(final String type) {
return type.equalsIgnoreCase("json") || type.equalsIgnoreCase("jsn");
}
private static boolean isProperties(final String type) {
return type.equalsIgnoreCase("properties");
}
}