Chans should now work.

Other deterministic addresses should be easy to implement, but aren't done yet

core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java

@@ -116,6 +116,7 @@ public class BitmessageContext {
 
     public BitmessageAddress joinChan(String passphrase, String address) {
         BitmessageAddress chan = BitmessageAddress.chan(address, passphrase);
+        chan.setAlias(passphrase);
         ctx.getAddressRepository().save(chan);
         return chan;
     }

core/src/main/java/ch/dissem/bitmessage/DefaultMessageListener.java

@@ -73,7 +73,7 @@ class DefaultMessageListener implements NetworkHandler.MessageListener {
 
     protected void receive(ObjectMessage object, GetPubkey getPubkey) {
         BitmessageAddress identity = ctx.getAddressRepository().findIdentity(getPubkey.getRipeTag());
-        if (identity != null && identity.getPrivateKey() != null) {
+        if (identity != null && identity.getPrivateKey() != null && !identity.isChan()) {
             LOG.info("Got pubkey request for identity " + identity);
             // FIXME: only send pubkey if it wasn't sent in the last 28 days
             ctx.sendPubkey(identity, object.getStream());

core/src/main/java/ch/dissem/bitmessage/entity/BitmessageAddress.java

@@ -247,4 +247,8 @@ public class BitmessageAddress implements Serializable {
     public boolean isChan() {
         return chan;
     }
+
+    public void setChan(boolean chan) {
+        this.chan = chan;
+    }
 }

core/src/main/java/ch/dissem/bitmessage/ports/AddressRepository.java

@@ -30,12 +30,17 @@ public interface AddressRepository {
      */
     List<BitmessageAddress> getIdentities();
 
+    /**
+     * @return all subscribed chans.
+     */
+    List<BitmessageAddress> getChans();
+
     List<BitmessageAddress> getSubscriptions();
 
     List<BitmessageAddress> getSubscriptions(long broadcastVersion);
 
     /**
-     * @return all Bitmessage addresses that have no private key.
+     * @return all Bitmessage addresses that have no private key or are chans.
      */
     List<BitmessageAddress> getContacts();
 

demo/src/main/java/ch/dissem/bitmessage/demo/Application.java

@@ -54,14 +54,11 @@ public class Application {
                 .networkHandler(new DefaultNetworkHandler())
                 .cryptography(new BouncyCryptography())
                 .port(48444)
-                .listener(new BitmessageContext.Listener() {
+                .listener(plaintext -> {
-                    @Override
+                    try {
-                    public void receive(Plaintext plaintext) {
+                        System.out.println(new String(plaintext.getMessage(), "UTF-8"));
-                        try {
+                    } catch (UnsupportedEncodingException e) {
-                            System.out.println(new String(plaintext.getMessage(), "UTF-8"));
+                        LOG.error(e.getMessage(), e);
-                        } catch (UnsupportedEncodingException e) {
-                            LOG.error(e.getMessage(), e);
-                        }
                     }
                 })
                 .build();
@@ -136,6 +133,7 @@ public class Application {
             System.out.println();
             commandLine.listAddresses(identities, "identities");
             System.out.println("a) create identity");
+            System.out.println("c) join chan");
             System.out.println(COMMAND_BACK);
 
             command = commandLine.nextCommand();
@@ -144,6 +142,10 @@ public class Application {
                     addIdentity();
                     identities = ctx.addresses().getIdentities();
                     break;
+                case "c":
+                    joinChan();
+                    identities = ctx.addresses().getIdentities();
+                    break;
                 case "b":
                     return;
                 default:
@@ -168,6 +170,15 @@ public class Application {
         ctx.addresses().save(identity);
     }
 
+    private void joinChan() {
+        System.out.println();
+        System.out.print("Passphrase: ");
+        String passphrase = commandLine.nextLine();
+        System.out.print("Address: ");
+        String address = commandLine.nextLineTrimmed();
+        ctx.joinChan(passphrase, address);
+    }
+
     private void contacts() {
         String command;
         List<BitmessageAddress> contacts = ctx.addresses().getContacts();
@@ -258,6 +269,12 @@ public class Application {
             } else {
                 System.out.println("Public key available");
             }
+        } else {
+            if (address.isChan()) {
+                System.out.println("Chan");
+            } else {
+                System.out.println("Identity");
+            }
         }
     }
 

repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcAddressRepository.java

@@ -70,6 +70,11 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
         return find("private_key IS NOT NULL");
     }
 
+    @Override
+    public List<BitmessageAddress> getChans() {
+        return find("chan = '1'");
+    }
+
     @Override
     public List<BitmessageAddress> getSubscriptions() {
         return find("subscribed = '1'");
@@ -86,7 +91,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
 
     @Override
     public List<BitmessageAddress> getContacts() {
-        return find("private_key IS NULL");
+        return find("private_key IS NULL OR chan = '1'");
     }
 
     private List<BitmessageAddress> find(String where) {
@@ -94,7 +99,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
         try (
                 Connection connection = config.getConnection();
                 Statement stmt = connection.createStatement();
-                ResultSet rs = stmt.executeQuery("SELECT address, alias, public_key, private_key, subscribed " +
+                ResultSet rs = stmt.executeQuery("SELECT address, alias, public_key, private_key, subscribed, chan " +
                         "FROM Address WHERE " + where)
         ) {
             while (rs.next()) {
@@ -118,6 +123,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
                 }
                 address.setAlias(rs.getString("alias"));
                 address.setSubscribed(rs.getBoolean("subscribed"));
+                address.setChan(rs.getBoolean("chan"));
 
                 result.add(address);
             }
@@ -164,7 +170,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
         if (address.getPrivateKey() != null) {
             statement.append(", private_key=?");
         }
-        statement.append(", subscribed=? WHERE address=?");
+        statement.append(", subscribed=?, chan=? WHERE address=?");
         try (
                 Connection connection = config.getConnection();
                 PreparedStatement ps = connection.prepareStatement(statement.toString())
@@ -178,6 +184,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
                 writeBlob(ps, ++i, address.getPrivateKey());
             }
             ps.setBoolean(++i, address.isSubscribed());
+            ps.setBoolean(++i, address.isChan());
             ps.setString(++i, address.getAddress());
             ps.executeUpdate();
         }
@@ -187,8 +194,8 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
         try (
                 Connection connection = config.getConnection();
                 PreparedStatement ps = connection.prepareStatement(
-                        "INSERT INTO Address (address, version, alias, public_key, private_key, subscribed) " +
+                        "INSERT INTO Address (address, version, alias, public_key, private_key, subscribed, chan) " +
-                                "VALUES (?, ?, ?, ?, ?, ?)")
+                                "VALUES (?, ?, ?, ?, ?, ?, ?)")
         ) {
             ps.setString(1, address.getAddress());
             ps.setLong(2, address.getVersion());
@@ -196,6 +203,7 @@ public class JdbcAddressRepository extends JdbcHelper implements AddressReposito
             writePubkey(ps, 4, address.getPubkey());
             writeBlob(ps, 5, address.getPrivateKey());
             ps.setBoolean(6, address.isSubscribed());
+            ps.setBoolean(7, address.isChan());
             ps.executeUpdate();
         }
     }

repositories/src/main/resources/db/migration/V3.0__Update_table_address.sql

@@ -0,0 +1 @@
+ALTER TABLE Address ADD COLUMN chan BIT NOT NULL DEFAULT '0';

repositories/src/test/java/ch/dissem/bitmessage/repository/JdbcAddressRepositoryTest.java

@@ -137,6 +137,24 @@ public class JdbcAddressRepositoryTest extends TestBase {
         assertNotNull(identityA.getPubkey());
         assertNotNull(identityA.getPrivateKey());
         assertEquals("Test", identityA.getAlias());
+        assertFalse(identityA.isChan());
+    }
+
+    @Test
+    public void ensureNewChanIsSavedAndUpdated() {
+        BitmessageAddress chan = BitmessageAddress.chan(1, "test");
+        repo.save(chan);
+        BitmessageAddress address = repo.getAddress(chan.getAddress());
+        assertNotNull(address);
+        assertTrue(address.isChan());
+
+        address.setAlias("Test");
+        repo.save(address);
+
+        address = repo.getAddress(chan.getAddress());
+        assertNotNull(address);
+        assertTrue(address.isChan());
+        assertEquals("Test", address.getAlias());
     }
 
     @Test