From da5df3957ba41d28256ab8183aae0dd3b6e0dcba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Grodzi=C5=84ska?= <mag.grodzinska@gmail.com>
Date: Sun, 12 Jan 2020 21:05:28 +0100
Subject: Add query signer architecture

---
 .../mimuw/cloudatlas/client/ClientController.java  | 31 ++++++++++++++--------
 1 file changed, 20 insertions(+), 11 deletions(-)

(limited to 'src/main/java/pl/edu/mimuw/cloudatlas/client')

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/client/ClientController.java b/src/main/java/pl/edu/mimuw/cloudatlas/client/ClientController.java
index 4019696..14f531e 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/client/ClientController.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/client/ClientController.java
@@ -7,6 +7,7 @@ import org.springframework.web.bind.annotation.*;
 import org.springframework.stereotype.Controller;
 import pl.edu.mimuw.cloudatlas.api.Api;
 import pl.edu.mimuw.cloudatlas.model.*;
+import pl.edu.mimuw.cloudatlas.querysignerapi.QuerySignerApi;
 
 import java.net.InetAddress;
 import java.rmi.registry.LocateRegistry;
@@ -32,17 +33,22 @@ import java.util.*;
 
 @Controller
 public class ClientController {
-    private Api api;
-
+    private Api agentApi;
+    private QuerySignerApi querySignerApi;
+    private Map<String, byte[]> querySignatures;
     private Map<ValueTime, AttributesMap> attributes;
     private String currentZoneName;
     private static final int MAX_ENTRIES = 10;
 
     ClientController() {
         try {
-            String hostname = System.getProperty("agent_hostname");	
-            Registry registry = LocateRegistry.getRegistry(hostname);
-            this.api = (Api) registry.lookup("Api");
+            String agentHostname = System.getProperty("agent_hostname");
+            Registry registry = LocateRegistry.getRegistry(agentHostname);
+            this.agentApi = (Api) registry.lookup("Api");
+
+            String querySignerHostname = System.getProperty("querysigner_hostname");
+            Registry querySignerRegistry = LocateRegistry.getRegistry(querySignerHostname);
+            this.querySignerApi = (QuerySignerApi) querySignerRegistry.lookup("QuerySignerApi");
         } catch (Exception e) {
             System.err.println("Client exception:");
             e.printStackTrace();
@@ -54,6 +60,7 @@ public class ClientController {
             }
         };
         this.currentZoneName = System.getProperty("zone_path");
+        this.querySignatures = new HashMap<>();
         fetchAttributeData(); // fetch attribute data as early as possible
     }
 
@@ -74,7 +81,9 @@ public class ClientController {
         boolean success = true;
 
         try {
-            this.api.installQuery(queryObject.getName(), queryObject.getValue());
+            byte[] querySignature = this.querySignerApi.signQuery(queryObject.getName(), queryObject.getValue());
+            querySignatures.put(queryObject.getName(), querySignature);
+            this.agentApi.installQuery(queryObject.getName(), queryObject.getValue(), querySignature);
         } catch (Exception e) {
             success = false;
             System.err.println("Client exception:");
@@ -99,7 +108,7 @@ public class ClientController {
         boolean success = true;
 
         try {
-            this.api.uninstallQuery(queryObject.getName());
+            this.agentApi.uninstallQuery(queryObject.getName(), querySignatures.get(queryObject.getName()));
         } catch (Exception e) {
             success = false;
             System.err.println("Client exception:");
@@ -153,7 +162,7 @@ public class ClientController {
 
         try {
             contactObjects = parseContactsString(contactsObject);
-            this.api.setFallbackContacts(contactObjects);
+            this.agentApi.setFallbackContacts(contactObjects);
         } catch (Exception e) {
             success = false;
             System.err.println("Client exception:");
@@ -284,7 +293,7 @@ public class ClientController {
 
         try {
             attributeValue = parseAttributeValue(attributeObject);
-            api.setAttributeValue(
+            agentApi.setAttributeValue(
                     attributeObject.getZoneName(),
                     attributeObject.getAttributeName(),
                     attributeValue);
@@ -309,7 +318,7 @@ public class ClientController {
         String availableZonesString = "";
 
         try {
-            availableZones = api.getZoneSet();
+            availableZones = agentApi.getZoneSet();
             availableZonesString = availableZones.toString().substring(1, availableZones.toString().length() - 1);
         } catch (Exception e) {
             success = false;
@@ -336,7 +345,7 @@ public class ClientController {
 
         try {
             if (!this.currentZoneName.isEmpty()) {
-                attribData = api.getZoneAttributeValues(this.currentZoneName);
+                attribData = agentApi.getZoneAttributeValues(this.currentZoneName);
                 currentTime = new ValueTime(System.currentTimeMillis());
                 this.attributes.put(currentTime, attribData);
             }
-- 
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