1 files changed, 106 insertions, 0 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/ssh/SshAddressesModule.java b/gerrit-server/src/main/java/com/google/gerrit/server/ssh/SshAddressesModule.java
new file mode 100644
index 0000000000..4c1283a6a4
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/ssh/SshAddressesModule.java
@@ -0,0 +1,106 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed 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 com.google.gerrit.server.ssh;
+
+import com.google.common.collect.Lists;
+import com.google.gerrit.server.config.GerritServerConfig;
+import com.google.gerrit.server.util.SocketUtil;
+import com.google.inject.AbstractModule;
+import com.google.inject.Provides;
+import com.google.inject.Singleton;
+
+import org.eclipse.jgit.lib.Config;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+import java.util.Arrays;
+import java.util.List;
+
+public class SshAddressesModule extends AbstractModule {
+  private static final Logger log =
+      LoggerFactory.getLogger(SshAddressesModule.class);
+
+  public static final int DEFAULT_PORT = 29418;
+  public static final int IANA_SSH_PORT = 22;
+
+  @Override
+  protected void configure() {
+  }
+
+  @Provides
+  @Singleton
+  @SshListenAddresses
+  List<SocketAddress> getListenAddresses(@GerritServerConfig Config cfg) {
+    List<SocketAddress> listen = Lists.newArrayListWithExpectedSize(2);
+    String[] want = cfg.getStringList("sshd", null, "listenaddress");
+    if (want == null || want.length == 0) {
+      listen.add(new InetSocketAddress(DEFAULT_PORT));
+      return listen;
+    }
+
+    if (want.length == 1 && isOff(want[0])) {
+      return listen;
+    }
+
+    for (final String desc : want) {
+      try {
+        listen.add(SocketUtil.resolve(desc, DEFAULT_PORT));
+      } catch (IllegalArgumentException e) {
+        log.error("Bad sshd.listenaddress: " + desc + ": " + e.getMessage());
+      }
+    }
+    return listen;
+  }
+
+  private static boolean isOff(String listenHostname) {
+    return "off".equalsIgnoreCase(listenHostname)
+        || "none".equalsIgnoreCase(listenHostname)
+        || "no".equalsIgnoreCase(listenHostname);
+  }
+
+  @Provides
+  @Singleton
+  @SshAdvertisedAddresses
+  List<String> getAdvertisedAddresses(@GerritServerConfig Config cfg,
+      @SshListenAddresses List<SocketAddress> listen) {
+    String[] want = cfg.getStringList("sshd", null, "advertisedaddress");
+    if (want.length > 0) {
+      return Arrays.asList(want);
+    }
+    List<InetSocketAddress> pub = Lists.newArrayList();
+    List<InetSocketAddress> local = Lists.newArrayList();
+
+    for (SocketAddress addr : listen) {
+      if (addr instanceof InetSocketAddress) {
+        InetSocketAddress inetAddr = (InetSocketAddress) addr;
+        if (inetAddr.getAddress().isLoopbackAddress()) {
+          local.add(inetAddr);
+        } else {
+          pub.add(inetAddr);
+        }
+      }
+    }
+    if (pub.isEmpty()) {
+      pub = local;
+    }
+    List<String> adv = Lists.newArrayListWithCapacity(pub.size());
+    for (InetSocketAddress addr : pub) {
+      adv.add(SocketUtil.format(addr, IANA_SSH_PORT));
+    }
+    return adv;
+  }
+}