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Apache HttpComponents Client (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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* registeredConfigurations;
public OSGiHttpRoutePlanner(
final BundleContext bundleContext,
final Map registeredConfigurations) {
super(null);
this.bundleContext = bundleContext;
this.registeredConfigurations = registeredConfigurations;
}
/**
* {@inheritDoc}
*/
@Override
protected HttpHost determineProxy(final HttpHost target, final HttpRequest request, final HttpContext context) throws HttpException {
ProxyConfiguration proxyConfiguration = null;
for (final ServiceRegistration registration : registeredConfigurations.values()) {
final Object proxyConfigurationObject = bundleContext.getService(registration.getReference());
if (proxyConfigurationObject != null) {
proxyConfiguration = (ProxyConfiguration) proxyConfigurationObject;
if (proxyConfiguration.isEnabled()) {
for (final String exception : proxyConfiguration.getProxyExceptions()) {
if (createMatcher(exception).matches(target.getHostName())) {
return null;
} else {
return new HttpHost(proxyConfiguration.getHostname(), proxyConfiguration.getPort());
}
}
}
}
}
return null;
}
private static HostMatcher createMatcher(final String name) {
final NetworkAddress na = NetworkAddress.parse(name);
if (na != null) {
return new IPAddressMatcher(na);
}
if (name.startsWith(DOT)) {
return new DomainNameMatcher(name);
}
return new HostNameMatcher(name);
}
private static interface HostMatcher {
boolean matches(String host);
}
private static class HostNameMatcher implements HostMatcher {
private final String hostName;
HostNameMatcher(final String hostName) {
this.hostName = hostName;
}
@Override
public boolean matches(final String host) {
return hostName.equalsIgnoreCase(host);
}
}
private static class DomainNameMatcher implements HostMatcher {
private final String domainName;
DomainNameMatcher(final String domainName) {
this.domainName = domainName.toLowerCase(Locale.ROOT);
}
@Override
public boolean matches(final String host) {
return host.toLowerCase(Locale.ROOT).endsWith(domainName);
}
}
private static class IPAddressMatcher implements HostMatcher {
private final NetworkAddress address;
IPAddressMatcher(final NetworkAddress address) {
this.address = address;
}
@Override
public boolean matches(final String host) {
final NetworkAddress hostAddress = NetworkAddress.parse(host);
return hostAddress != null && address.address == (hostAddress.address & address.mask);
}
}
private static class NetworkAddress {
final int address;
final int mask;
static NetworkAddress parse(final String adrSpec) {
if (null != adrSpec) {
final Matcher nameMatcher = IP_MASK_PATTERN.matcher(adrSpec);
if (nameMatcher.matches()) {
try {
final int i1 = toInt(nameMatcher.group(1), 255);
final int i2 = toInt(nameMatcher.group(2), 255);
final int i3 = toInt(nameMatcher.group(3), 255);
final int i4 = toInt(nameMatcher.group(4), 255);
final int ip = i1 << 24 | i2 << 16 | i3 << 8 | i4;
int mask = toInt(nameMatcher.group(6), 32);
mask = (mask == 32) ? -1 : -1 - (-1 >>> mask);
return new NetworkAddress(ip, mask);
} catch (final NumberFormatException nfe) {
// not expected after the pattern match !
}
}
}
return null;
}
private static int toInt(final String value, final int max) {
if (value == null || value.isEmpty()) {
return max;
}
int number = Integer.parseInt(value);
if (number > max) {
number = max;
}
return number;
}
NetworkAddress(final int address, final int mask) {
this.address = address;
this.mask = mask;
}
}
}