diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/conn/routing/BasicRouteDirector.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/conn/routing/BasicRouteDirector.java Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,168 @@
+/*
+ * ====================================================================
+ * 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
+ * .
+ *
+ */
+
+package ch.boye.httpclientandroidlib.conn.routing;
+
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+
+/**
+ * Basic implementation of an {@link HttpRouteDirector HttpRouteDirector}.
+ * This implementation is stateless and therefore thread-safe.
+ *
+ * @since 4.0
+ */
+@Immutable
+public class BasicRouteDirector implements HttpRouteDirector {
+
+ /**
+ * Provides the next step.
+ *
+ * @param plan the planned route
+ * @param fact the currently established route, or
+ * null
if nothing is established
+ *
+ * @return one of the constants defined in this class, indicating
+ * either the next step to perform, or success, or failure.
+ * 0 is for success, a negative value for failure.
+ */
+ public int nextStep(RouteInfo plan, RouteInfo fact) {
+ if (plan == null) {
+ throw new IllegalArgumentException
+ ("Planned route may not be null.");
+ }
+
+ int step = UNREACHABLE;
+
+ if ((fact == null) || (fact.getHopCount() < 1))
+ step = firstStep(plan);
+ else if (plan.getHopCount() > 1)
+ step = proxiedStep(plan, fact);
+ else
+ step = directStep(plan, fact);
+
+ return step;
+
+ } // nextStep
+
+
+ /**
+ * Determines the first step to establish a route.
+ *
+ * @param plan the planned route
+ *
+ * @return the first step
+ */
+ protected int firstStep(RouteInfo plan) {
+
+ return (plan.getHopCount() > 1) ?
+ CONNECT_PROXY : CONNECT_TARGET;
+ }
+
+
+ /**
+ * Determines the next step to establish a direct connection.
+ *
+ * @param plan the planned route
+ * @param fact the currently established route
+ *
+ * @return one of the constants defined in this class, indicating
+ * either the next step to perform, or success, or failure
+ */
+ protected int directStep(RouteInfo plan, RouteInfo fact) {
+
+ if (fact.getHopCount() > 1)
+ return UNREACHABLE;
+ if (!plan.getTargetHost().equals(fact.getTargetHost()))
+ return UNREACHABLE;
+ // If the security is too low, we could now suggest to layer
+ // a secure protocol on the direct connection. Layering on direct
+ // connections has not been supported in HttpClient 3.x, we don't
+ // consider it here until there is a real-life use case for it.
+
+ // Should we tolerate if security is better than planned?
+ // (plan.isSecure() && !fact.isSecure())
+ if (plan.isSecure() != fact.isSecure())
+ return UNREACHABLE;
+
+ // Local address has to match only if the plan specifies one.
+ if ((plan.getLocalAddress() != null) &&
+ !plan.getLocalAddress().equals(fact.getLocalAddress())
+ )
+ return UNREACHABLE;
+
+ return COMPLETE;
+ }
+
+
+ /**
+ * Determines the next step to establish a connection via proxy.
+ *
+ * @param plan the planned route
+ * @param fact the currently established route
+ *
+ * @return one of the constants defined in this class, indicating
+ * either the next step to perform, or success, or failure
+ */
+ protected int proxiedStep(RouteInfo plan, RouteInfo fact) {
+
+ if (fact.getHopCount() <= 1)
+ return UNREACHABLE;
+ if (!plan.getTargetHost().equals(fact.getTargetHost()))
+ return UNREACHABLE;
+ final int phc = plan.getHopCount();
+ final int fhc = fact.getHopCount();
+ if (phc < fhc)
+ return UNREACHABLE;
+
+ for (int i=0; i fhc)
+ return TUNNEL_PROXY; // need to extend the proxy chain
+
+ // proxy chain and target are the same, check tunnelling and layering
+ if ((fact.isTunnelled() && !plan.isTunnelled()) ||
+ (fact.isLayered() && !plan.isLayered()))
+ return UNREACHABLE;
+
+ if (plan.isTunnelled() && !fact.isTunnelled())
+ return TUNNEL_TARGET;
+ if (plan.isLayered() && !fact.isLayered())
+ return LAYER_PROTOCOL;
+
+ // tunnel and layering are the same, remains to check the security
+ // Should we tolerate if security is better than planned?
+ // (plan.isSecure() && !fact.isSecure())
+ if (plan.isSecure() != fact.isSecure())
+ return UNREACHABLE;
+
+ return COMPLETE;
+ }
+
+}