WIP. send host key to flex router

bubble-server/src/main/java/bubble/ApiConstants.java

@@ -12,7 +12,6 @@ import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.RandomUtils;
 import org.cobbzilla.util.daemon.ZillaRuntime;
-import org.cobbzilla.util.io.FileUtil;
 import org.glassfish.grizzly.http.server.Request;
 import org.glassfish.jersey.server.ContainerRequest;
 
@@ -36,6 +35,7 @@ import static org.cobbzilla.util.json.JsonUtil.COMPACT_MAPPER;
 import static org.cobbzilla.util.json.JsonUtil.json;
 import static org.cobbzilla.util.network.NetworkUtil.*;
 import static org.cobbzilla.util.string.StringUtil.splitAndTrim;
+import static org.cobbzilla.util.system.CommandShell.execScript;
 import static org.cobbzilla.wizard.resources.ResourceUtil.invalidEx;
 
 @Slf4j
@@ -58,7 +58,7 @@ public class ApiConstants {
 
     private static String initDefaultDomain() {
         final File f = new File(HOME_DIR, ".BUBBLE_DEFAULT_DOMAIN");
-        final String domain = FileUtil.toStringOrDie(f);
+        final String domain = toStringOrDie(f);
         return domain != null ? domain.trim() : die("initDefaultDomain: "+abs(f)+" not found");
     }
 
@@ -75,6 +75,9 @@ public class ApiConstants {
 
     public static final GoogleAuthenticator G_AUTH = new GoogleAuthenticator();
 
+    public static final String HOST_KEY = toStringOrDie("/etc/ssh/ssh_host_rsa_key.pub").trim();
+    public static final String KNOWN_HOST_KEY = execScript("ssh-keyscan -t rsa $(hostname -d) 2>&1 | grep -v \"^#\"");
+
     public static final Predicate ALWAYS_TRUE = m -> true;
     public static final String HOME_DIR;
     static {

bubble-server/src/main/java/bubble/dao/device/FlexRouterDAO.java

@@ -9,6 +9,7 @@ import org.springframework.stereotype.Repository;
 
 import java.util.List;
 
+import static bubble.ApiConstants.KNOWN_HOST_KEY;
 import static org.cobbzilla.util.daemon.ZillaRuntime.now;
 import static org.cobbzilla.wizard.resources.ResourceUtil.invalidEx;
 import static org.hibernate.criterion.Restrictions.*;
@@ -26,6 +27,7 @@ public class FlexRouterDAO extends AccountOwnedEntityDAO<FlexRouter> {
 
     @Override public FlexRouter postCreate(FlexRouter router, Object context) {
         flexRouterService.register(router);
+        router.setHost_key(KNOWN_HOST_KEY);
         return super.postCreate(router, context);
     }
 
@@ -39,6 +41,7 @@ public class FlexRouterDAO extends AccountOwnedEntityDAO<FlexRouter> {
 
     @Override public FlexRouter postUpdate(FlexRouter router, Object context) {
         flexRouterService.register(router);
+        router.setHost_key(KNOWN_HOST_KEY);
         return super.postUpdate(router, context);
     }
 

bubble-server/src/main/java/bubble/model/device/FlexRouter.java

@@ -35,7 +35,7 @@ import static org.cobbzilla.wizard.model.crypto.EncryptedTypes.ENC_PAD;
 @ECIndexes({ @ECIndex(unique=true, of={"account", "ip"}) })
 public class FlexRouter extends IdentifiableBase implements HasAccount {
 
-    public static final String[] UPDATE_FIELDS = { "enabled", "active", "auth_token", "token", "key" };
+    public static final String[] UPDATE_FIELDS = { "enabled", "active", "auth_token", "token", "key", "host_key" };
     public static final String[] CREATE_FIELDS = ArrayUtil.append(UPDATE_FIELDS, "ip", "port");
 
     public FlexRouter (FlexRouter other) { copy(this, other, CREATE_FIELDS); }
@@ -101,6 +101,9 @@ public class FlexRouter extends IdentifiableBase implements HasAccount {
     @Transient @Getter @Setter private String auth_token;
     public boolean hasAuthToken () { return !empty(auth_token); }
 
+    // used for sending the SSH host key to flexrouter
+    @Transient @Getter @Setter private String host_key;
+
     public FlexRouterPing pingObject() { return new FlexRouterPing(this); }
 
 }

bubble-server/src/main/java/bubble/resources/device/FlexRoutersResource.java

@@ -74,7 +74,6 @@ public class FlexRoutersResource extends AccountOwnedResource<FlexRouter, FlexRo
             throw invalidEx("err.port.cannotSetOrChange");
         }
         router.setActive(false);
-
         return super.setReferences(ctx, req, caller, router);
     }