Добавить догоняющую синхронизацию DM между access-серверами

SHiNE-server/shine-server-db/src/main/java/shine/db/DatabaseInitializer.java

@@ -19,8 +19,10 @@ public final class DatabaseInitializer {
     public static final String DB_SCHEMA_VERSION_TABLE = "db_schema_version";
     public static final int SCHEMA_VERSION_1 = 1;
     public static final int SCHEMA_VERSION_2 = 2;
+    public static final int SCHEMA_VERSION_3 = 3;
     public static final String POSTGRES_SCHEMA_RESOURCE = "postgres/schema_v1.sql";
     public static final String POSTGRES_MIGRATION_V2_RESOURCE = "postgres/migration_v2.sql";
+    public static final String POSTGRES_MIGRATION_V3_RESOURCE = "postgres/migration_v3.sql";
 
     private DatabaseInitializer() {}
 
@@ -82,6 +84,10 @@ public final class DatabaseInitializer {
             int currentVersion = readCurrentSchemaVersion(conn);
             if (currentVersion < SCHEMA_VERSION_2) {
                 runSqlScript(conn, POSTGRES_MIGRATION_V2_RESOURCE);
+                currentVersion = SCHEMA_VERSION_2;
+            }
+            if (currentVersion < SCHEMA_VERSION_3) {
+                runSqlScript(conn, POSTGRES_MIGRATION_V3_RESOURCE);
             }
         }
     }

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/CurrentUsersDAO.java

@@ -154,6 +154,11 @@ public final class CurrentUsersDAO {
 
     /** Поиск по префиксу с внешним соединением. Соединение НЕ закрывает. */
     public List<CurrentUserEntry> searchByLoginPrefix(Connection c, String prefix) throws SQLException {
+        return searchByLoginPrefix(c, prefix, null);
+    }
+
+    /** Поиск по префиксу с optional-фильтром server PDA. Соединение НЕ закрывает. */
+    public List<CurrentUserEntry> searchByLoginPrefix(Connection c, String prefix, Boolean isServer) throws SQLException {
         String sql = """
             SELECT
                 login,
@@ -163,6 +168,7 @@ public final class CurrentUsersDAO {
                 client_key
             FROM %s
             WHERE LOWER(login) LIKE ?
+              AND (? IS NULL OR is_server = ?)
             ORDER BY login
             LIMIT 5
             """.formatted(CurrentUsersSql.usersSubquery("su"));
@@ -171,6 +177,13 @@ public final class CurrentUsersDAO {
 
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, prefix.toLowerCase() + "%");
+            if (isServer == null) {
+                ps.setNull(2, Types.BOOLEAN);
+                ps.setNull(3, Types.BOOLEAN);
+            } else {
+                ps.setBoolean(2, isServer);
+                ps.setBoolean(3, isServer);
+            }
             try (ResultSet rs = ps.executeQuery()) {
                 while (rs.next()) result.add(mapRow(rs));
             }
@@ -181,8 +194,13 @@ public final class CurrentUsersDAO {
 
     /** Поиск по префиксу без внешнего соединения. Сам открывает/закрывает. */
     public List<CurrentUserEntry> searchByLoginPrefix(String prefix) throws SQLException {
+        return searchByLoginPrefix(prefix, null);
+    }
+
+    /** Поиск по префиксу без внешнего соединения с optional-фильтром server PDA. */
+    public List<CurrentUserEntry> searchByLoginPrefix(String prefix, Boolean isServer) throws SQLException {
         try (Connection c = db.getConnection()) {
-            return searchByLoginPrefix(c, prefix);
+            return searchByLoginPrefix(c, prefix, isServer);
         }
     }
 

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/DmSyncPeerStateDAO.java

@@ -0,0 +1,173 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.entities.DmSyncPeerStateEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public final class DmSyncPeerStateDAO {
+    private static volatile DmSyncPeerStateDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private DmSyncPeerStateDAO() {}
+
+    public static DmSyncPeerStateDAO getInstance() {
+        if (instance == null) {
+            synchronized (DmSyncPeerStateDAO.class) {
+                if (instance == null) instance = new DmSyncPeerStateDAO();
+            }
+        }
+        return instance;
+    }
+
+    public DmSyncPeerStateEntry getOrCreate(String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        DmSyncPeerStateEntry existing = get(ownerLogin, remoteServerLogin);
+        if (existing != null) {
+            if (remoteServerUrl != null && !remoteServerUrl.isBlank()
+                    && !remoteServerUrl.equals(existing.getRemoteServerUrl())) {
+                touchRemoteUrl(ownerLogin, remoteServerLogin, remoteServerUrl);
+                existing.setRemoteServerUrl(remoteServerUrl);
+            }
+            return existing;
+        }
+
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, 0, '', FALSE, NULL, NULL, ?)
+                ON CONFLICT DO NOTHING
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setLong(4, nowMs);
+            ps.executeUpdate();
+        }
+        existing = get(ownerLogin, remoteServerLogin);
+        if (existing == null) {
+            throw new SQLException("Failed to create dm_sync_peer_state row");
+        }
+        return existing;
+    }
+
+    public void updateSuccess(
+            String ownerLogin,
+            String remoteServerLogin,
+            String remoteServerUrl,
+            long cursorStoredAtMs,
+            String cursorMessageKey,
+            boolean bootstrapCompleted
+    ) throws SQLException {
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, ?, ?, ?, ?, NULL, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    cursor_stored_at_ms = EXCLUDED.cursor_stored_at_ms,
+                    cursor_message_key = EXCLUDED.cursor_message_key,
+                    bootstrap_completed = EXCLUDED.bootstrap_completed,
+                    last_sync_at_ms = EXCLUDED.last_sync_at_ms,
+                    last_error = NULL,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setLong(4, Math.max(0L, cursorStoredAtMs));
+            ps.setString(5, cursorMessageKey == null ? "" : cursorMessageKey);
+            ps.setBoolean(6, bootstrapCompleted);
+            ps.setLong(7, nowMs);
+            ps.setLong(8, nowMs);
+            ps.executeUpdate();
+        }
+    }
+
+    public void updateError(String ownerLogin, String remoteServerLogin, String remoteServerUrl, String error) throws SQLException {
+        long nowMs = System.currentTimeMillis();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                INSERT INTO dm_sync_peer_state (
+                    owner_login, remote_server_login, remote_server_url,
+                    cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                    last_sync_at_ms, last_error, updated_at_ms
+                ) VALUES (?, ?, ?, 0, '', FALSE, NULL, ?, ?)
+                ON CONFLICT (owner_login, remote_server_login) DO UPDATE SET
+                    remote_server_url = EXCLUDED.remote_server_url,
+                    last_error = EXCLUDED.last_error,
+                    updated_at_ms = EXCLUDED.updated_at_ms
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            ps.setString(3, remoteServerUrl == null ? "" : remoteServerUrl);
+            ps.setString(4, truncate(error));
+            ps.setLong(5, nowMs);
+            ps.executeUpdate();
+        }
+    }
+
+    private DmSyncPeerStateEntry get(String ownerLogin, String remoteServerLogin) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                SELECT owner_login, remote_server_login, remote_server_url,
+                       cursor_stored_at_ms, cursor_message_key, bootstrap_completed,
+                       last_sync_at_ms, last_error, updated_at_ms
+                FROM dm_sync_peer_state
+                WHERE LOWER(owner_login) = LOWER(?)
+                  AND LOWER(remote_server_login) = LOWER(?)
+                LIMIT 1
+                """)) {
+            ps.setString(1, ownerLogin);
+            ps.setString(2, remoteServerLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return null;
+                DmSyncPeerStateEntry e = new DmSyncPeerStateEntry();
+                e.setOwnerLogin(rs.getString("owner_login"));
+                e.setRemoteServerLogin(rs.getString("remote_server_login"));
+                e.setRemoteServerUrl(rs.getString("remote_server_url"));
+                e.setCursorStoredAtMs(rs.getLong("cursor_stored_at_ms"));
+                e.setCursorMessageKey(rs.getString("cursor_message_key"));
+                e.setBootstrapCompleted(rs.getBoolean("bootstrap_completed"));
+                long lastSyncAt = rs.getLong("last_sync_at_ms");
+                e.setLastSyncAtMs(rs.wasNull() ? null : lastSyncAt);
+                e.setLastError(rs.getString("last_error"));
+                e.setUpdatedAtMs(rs.getLong("updated_at_ms"));
+                return e;
+            }
+        }
+    }
+
+    private void touchRemoteUrl(String ownerLogin, String remoteServerLogin, String remoteServerUrl) throws SQLException {
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement("""
+                UPDATE dm_sync_peer_state
+                SET remote_server_url = ?, updated_at_ms = ?
+                WHERE LOWER(owner_login) = LOWER(?)
+                  AND LOWER(remote_server_login) = LOWER(?)
+                """)) {
+            ps.setString(1, remoteServerUrl);
+            ps.setLong(2, System.currentTimeMillis());
+            ps.setString(3, ownerLogin);
+            ps.setString(4, remoteServerLogin);
+            ps.executeUpdate();
+        }
+    }
+
+    private static String truncate(String value) {
+        if (value == null) return null;
+        String clean = value.trim();
+        if (clean.length() <= 500) return clean;
+        return clean.substring(0, 500);
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/SignedMessagesDAO.java

@@ -416,6 +416,72 @@ public final class SignedMessagesDAO {
         }
     }
 
+    public SyncBatch listSyncBatch(
+            String ownerLogin,
+            long afterStoredAtMs,
+            String afterMessageKey,
+            int limit,
+            int maxBytes
+    ) throws Exception {
+        int safeLimit = Math.max(1, Math.min(limit, 500));
+        int sqlLimit = safeLimit + 1;
+        String safeAfterMessageKey = afterMessageKey == null ? "" : afterMessageKey;
+        try (Connection c = db.getConnection()) {
+            String sql = """
+                SELECT
+                    message_key, base_key, target_login, from_login, to_login,
+                    time_ms, nonce, message_type, revision_time_ms, reencrypted_at_ms,
+                    raw_block, created_at_ms, source_api, origin_session_id,
+                    receipt_ref_base_key, receipt_ref_type, read_at_ms
+                FROM %s
+                WHERE (
+                        LOWER(target_login) = LOWER(?)
+                     OR (
+                            message_type IN (5, 6, 7, 8)
+                        AND (LOWER(from_login) = LOWER(?) OR LOWER(to_login) = LOWER(?))
+                     )
+                  )
+                  AND (
+                        created_at_ms > ?
+                     OR (created_at_ms = ? AND (? = '' OR message_key > ?))
+                  )
+                ORDER BY created_at_ms ASC, message_key ASC
+                LIMIT ?
+                """.formatted(messagesTable());
+            List<SignedMessageEntry> out = new ArrayList<>();
+            boolean hasMore = false;
+            int usedBytes = 0;
+            try (PreparedStatement ps = c.prepareStatement(sql)) {
+                ps.setString(1, ownerLogin);
+                ps.setString(2, ownerLogin);
+                ps.setString(3, ownerLogin);
+                ps.setLong(4, Math.max(0L, afterStoredAtMs));
+                ps.setLong(5, Math.max(0L, afterStoredAtMs));
+                ps.setString(6, safeAfterMessageKey);
+                ps.setString(7, safeAfterMessageKey);
+                ps.setInt(8, sqlLimit);
+                try (ResultSet rs = ps.executeQuery()) {
+                    while (rs.next()) {
+                        SignedMessageEntry row = mapRow(rs);
+                        byte[] raw = row.getRawBlock();
+                        int rowBytes = raw == null ? 0 : raw.length;
+                        if (out.size() >= safeLimit) {
+                            hasMore = true;
+                            break;
+                        }
+                        if (!out.isEmpty() && maxBytes > 0 && usedBytes + rowBytes > maxBytes) {
+                            hasMore = true;
+                            break;
+                        }
+                        out.add(row);
+                        usedBytes += rowBytes;
+                    }
+                }
+            }
+            return new SyncBatch(out, hasMore, usedBytes);
+        }
+    }
+
     private void upsertMessage(Connection c, SignedMessageEntry e) throws SQLException {
         String sql = """
             INSERT INTO %s (
@@ -748,6 +814,8 @@ public final class SignedMessagesDAO {
         }
     }
 
+    public record SyncBatch(List<SignedMessageEntry> items, boolean hasMore, int rawBytes) {}
+
     @FunctionalInterface
     private interface SqlWork<T> {
         T run() throws Exception;

SHiNE-server/shine-server-db/src/main/java/shine/db/dao/UserAccessServersCurrentDAO.java

@@ -0,0 +1,86 @@
+package shine.db.dao;
+
+import shine.db.DbController;
+import shine.db.KeyEncodingUtil;
+import shine.db.entities.UserAccessServerRouteEntry;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * DAO локальной routing-проекции access servers пользователей.
+ */
+public final class UserAccessServersCurrentDAO {
+
+    private static volatile UserAccessServersCurrentDAO instance;
+    private final DbController db = DbController.getInstance();
+
+    private UserAccessServersCurrentDAO() {}
+
+    public static UserAccessServersCurrentDAO getInstance() {
+        if (instance == null) {
+            synchronized (UserAccessServersCurrentDAO.class) {
+                if (instance == null) instance = new UserAccessServersCurrentDAO();
+            }
+        }
+        return instance;
+    }
+
+    public List<UserAccessServerRouteEntry> listByUserLogin(String userLogin) throws SQLException {
+        try (Connection c = db.getConnection()) {
+            return listByUserLogin(c, userLogin);
+        }
+    }
+
+    public List<UserAccessServerRouteEntry> listByUserLogin(Connection c, String userLogin) throws SQLException {
+        String sql = """
+            SELECT user_login, server_login, server_url, server_client_key
+            FROM user_access_servers_current
+            WHERE LOWER(user_login) = LOWER(?)
+            ORDER BY server_login
+            """;
+        List<UserAccessServerRouteEntry> result = new ArrayList<>();
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, userLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    result.add(mapRow(rs));
+                }
+            }
+        }
+        return result;
+    }
+
+    public List<String> listUserLoginsByServerLogin(String serverLogin) throws SQLException {
+        String sql = """
+            SELECT user_login
+            FROM user_access_servers_current
+            WHERE LOWER(server_login) = LOWER(?)
+            ORDER BY user_login
+            """;
+        List<String> result = new ArrayList<>();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, serverLogin);
+            try (ResultSet rs = ps.executeQuery()) {
+                while (rs.next()) {
+                    result.add(rs.getString("user_login"));
+                }
+            }
+        }
+        return result;
+    }
+
+    private UserAccessServerRouteEntry mapRow(ResultSet rs) throws SQLException {
+        UserAccessServerRouteEntry entry = new UserAccessServerRouteEntry();
+        entry.setUserLogin(rs.getString("user_login"));
+        entry.setServerLogin(rs.getString("server_login"));
+        entry.setServerUrl(rs.getString("server_url"));
+        entry.setServerClientKey(KeyEncodingUtil.normalizeKeyToBase64_32(rs.getString("server_client_key")));
+        return entry;
+    }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/DmSyncPeerStateEntry.java

@@ -0,0 +1,32 @@
+package shine.db.entities;
+
+public class DmSyncPeerStateEntry {
+    private String ownerLogin;
+    private String remoteServerLogin;
+    private String remoteServerUrl;
+    private long cursorStoredAtMs;
+    private String cursorMessageKey;
+    private boolean bootstrapCompleted;
+    private Long lastSyncAtMs;
+    private String lastError;
+    private long updatedAtMs;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+    public String getRemoteServerLogin() { return remoteServerLogin; }
+    public void setRemoteServerLogin(String remoteServerLogin) { this.remoteServerLogin = remoteServerLogin; }
+    public String getRemoteServerUrl() { return remoteServerUrl; }
+    public void setRemoteServerUrl(String remoteServerUrl) { this.remoteServerUrl = remoteServerUrl; }
+    public long getCursorStoredAtMs() { return cursorStoredAtMs; }
+    public void setCursorStoredAtMs(long cursorStoredAtMs) { this.cursorStoredAtMs = cursorStoredAtMs; }
+    public String getCursorMessageKey() { return cursorMessageKey; }
+    public void setCursorMessageKey(String cursorMessageKey) { this.cursorMessageKey = cursorMessageKey; }
+    public boolean isBootstrapCompleted() { return bootstrapCompleted; }
+    public void setBootstrapCompleted(boolean bootstrapCompleted) { this.bootstrapCompleted = bootstrapCompleted; }
+    public Long getLastSyncAtMs() { return lastSyncAtMs; }
+    public void setLastSyncAtMs(Long lastSyncAtMs) { this.lastSyncAtMs = lastSyncAtMs; }
+    public String getLastError() { return lastError; }
+    public void setLastError(String lastError) { this.lastError = lastError; }
+    public long getUpdatedAtMs() { return updatedAtMs; }
+    public void setUpdatedAtMs(long updatedAtMs) { this.updatedAtMs = updatedAtMs; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/entities/UserAccessServerRouteEntry.java

@@ -0,0 +1,27 @@
+package shine.db.entities;
+
+/**
+ * Локальная routing-проекция access server пользователя.
+ *
+ * Источник:
+ *  - user_access_servers_current
+ */
+public class UserAccessServerRouteEntry {
+
+    private String userLogin;
+    private String serverLogin;
+    private String serverUrl;
+    private String serverClientKey;
+
+    public String getUserLogin() { return userLogin; }
+    public void setUserLogin(String userLogin) { this.userLogin = userLogin; }
+
+    public String getServerLogin() { return serverLogin; }
+    public void setServerLogin(String serverLogin) { this.serverLogin = serverLogin; }
+
+    public String getServerUrl() { return serverUrl; }
+    public void setServerUrl(String serverUrl) { this.serverUrl = serverUrl; }
+
+    public String getServerClientKey() { return serverClientKey; }
+    public void setServerClientKey(String serverClientKey) { this.serverClientKey = serverClientKey; }
+}

SHiNE-server/shine-server-db/src/main/java/shine/db/sql/CurrentUsersSql.java

@@ -15,7 +15,8 @@ public final class CurrentUsersSql {
                     current_users.blockchain_name AS blockchain_name,
                     current_users.client_key AS solana_key,
                     current_users.blockchain_key AS blockchain_key,
-                    current_users.client_key AS client_key
+                    current_users.client_key AS client_key,
+                    current_users.is_server AS is_server
                 FROM solana_user_pda_current current_users
             ) %s
             """.formatted(alias);

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v3.sql

@@ -0,0 +1,47 @@
+BEGIN;
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor
+    ON signed_messages(target_login, created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor_lower
+    ON signed_messages(LOWER(target_login), created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor
+    ON signed_messages(from_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor
+    ON signed_messages(to_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor_lower
+    ON signed_messages(LOWER(from_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor_lower
+    ON signed_messages(LOWER(to_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE TABLE IF NOT EXISTS dm_sync_peer_state (
+    owner_login             TEXT NOT NULL,
+    remote_server_login     TEXT NOT NULL,
+    remote_server_url       TEXT NOT NULL,
+    cursor_stored_at_ms     BIGINT NOT NULL DEFAULT 0,
+    cursor_message_key      TEXT NOT NULL DEFAULT '',
+    bootstrap_completed     BOOLEAN NOT NULL DEFAULT FALSE,
+    last_sync_at_ms         BIGINT,
+    last_error              TEXT,
+    updated_at_ms           BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, remote_server_login)
+);
+
+CREATE INDEX IF NOT EXISTS idx_dm_sync_peer_state_owner
+    ON dm_sync_peer_state(owner_login);
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 3, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+ON CONFLICT (id) DO UPDATE SET
+    schema_version = EXCLUDED.schema_version,
+    updated_at_ms = EXCLUDED.updated_at_ms;
+
+COMMIT;

SHiNE-server/shine-server-db/src/main/resources/postgres/schema_v1.sql

@@ -22,7 +22,7 @@ CREATE TABLE IF NOT EXISTS db_schema_version (
 );
 
 INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
-VALUES (1, 2, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
+VALUES (1, 3, CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT))
 ON CONFLICT (id) DO UPDATE SET
     schema_version = EXCLUDED.schema_version,
     updated_at_ms = EXCLUDED.updated_at_ms;
@@ -652,6 +652,28 @@ CREATE INDEX IF NOT EXISTS idx_signed_messages_target
 CREATE INDEX IF NOT EXISTS idx_signed_messages_base
     ON signed_messages(base_key, message_type);
 
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor
+    ON signed_messages(target_login, created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_sync_cursor_lower
+    ON signed_messages(LOWER(target_login), created_at_ms, message_key);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor
+    ON signed_messages(from_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor
+    ON signed_messages(to_login, created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_from_sync_cursor_lower
+    ON signed_messages(LOWER(from_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
+CREATE INDEX IF NOT EXISTS idx_signed_messages_delete_to_sync_cursor_lower
+    ON signed_messages(LOWER(to_login), created_at_ms, message_key)
+    WHERE message_type IN (5, 6, 7, 8);
+
 CREATE UNIQUE INDEX IF NOT EXISTS uq_signed_messages_receipt_incoming
     ON signed_messages(target_login, receipt_ref_base_key)
     WHERE message_type = 3 AND receipt_ref_base_key IS NOT NULL;
@@ -672,6 +694,22 @@ CREATE TABLE IF NOT EXISTS signed_message_session_delivery (
 CREATE INDEX IF NOT EXISTS idx_signed_message_delivery_session
     ON signed_message_session_delivery(session_id, delivered);
 
+CREATE TABLE IF NOT EXISTS dm_sync_peer_state (
+    owner_login             TEXT NOT NULL,
+    remote_server_login     TEXT NOT NULL,
+    remote_server_url       TEXT NOT NULL,
+    cursor_stored_at_ms     BIGINT NOT NULL DEFAULT 0,
+    cursor_message_key      TEXT NOT NULL DEFAULT '',
+    bootstrap_completed     BOOLEAN NOT NULL DEFAULT FALSE,
+    last_sync_at_ms         BIGINT,
+    last_error              TEXT,
+    updated_at_ms           BIGINT NOT NULL,
+    PRIMARY KEY (owner_login, remote_server_login)
+);
+
+CREATE INDEX IF NOT EXISTS idx_dm_sync_peer_state_owner
+    ON dm_sync_peer_state(owner_login);
+
 CREATE TABLE IF NOT EXISTS message_views_state (
     viewer_login       TEXT NOT NULL,
     to_bch_name        TEXT NOT NULL,

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/JsonHandlerRegistry.java

@@ -88,6 +88,7 @@ import server.logic.ws_protocol.JSON.messages.Net_CallInviteBroadcast_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_CallSignalToSession_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_DeleteConversation_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_DeleteMessage_Handler;
+import server.logic.ws_protocol.JSON.messages.Net_DmSyncBatch_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_GetDirectMessages_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_SendSignal_Handler;
 import server.logic.ws_protocol.JSON.messages.Net_ReceiveIncomingMessage_Handler;
@@ -100,6 +101,7 @@ import server.logic.ws_protocol.JSON.messages.entyties.Net_CallInviteBroadcast_R
 import server.logic.ws_protocol.JSON.messages.entyties.Net_CallSignalToSession_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_DeleteConversation_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_DeleteMessage_Request;
+import server.logic.ws_protocol.JSON.messages.entyties.Net_DmSyncBatch_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_GetDirectMessages_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_SendSignal_Request;
 import server.logic.ws_protocol.JSON.messages.entyties.Net_ReceiveIncomingMessage_Request;
@@ -198,6 +200,7 @@ public final class JsonHandlerRegistry {
             Map.entry("ReceiveIncomingMessage", new Net_ReceiveIncomingMessage_Handler()),
             Map.entry("DeleteMessage", new Net_DeleteMessage_Handler()),
             Map.entry("DeleteConversation", new Net_DeleteConversation_Handler()),
+            Map.entry("DmSyncBatch", new Net_DmSyncBatch_Handler()),
             Map.entry("GetDirectMessages", new Net_GetDirectMessages_Handler()),
             Map.entry("AckSessionDelivery", new Net_AckSessionDelivery_Handler()),
             Map.entry("CallInviteBroadcast", new Net_CallInviteBroadcast_Handler()),
@@ -278,6 +281,7 @@ public final class JsonHandlerRegistry {
             Map.entry("ReceiveIncomingMessage", Net_ReceiveIncomingMessage_Request.class),
             Map.entry("DeleteMessage", Net_DeleteMessage_Request.class),
             Map.entry("DeleteConversation", Net_DeleteConversation_Request.class),
+            Map.entry("DmSyncBatch", Net_DmSyncBatch_Request.class),
             Map.entry("GetDirectMessages", Net_GetDirectMessages_Request.class),
             Map.entry("AckSessionDelivery", Net_AckSessionDelivery_Request.class),
             Map.entry("CallInviteBroadcast", Net_CallInviteBroadcast_Request.class),

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/tempToTest/Net_SearchUsers_Handler.java

@@ -35,10 +35,11 @@ public class Net_SearchUsers_Handler implements JsonMessageHandler {
         }
 
         String prefix = req.getPrefix().trim();
+        Boolean isServer = req.getIsServer();
 
         try {
             CurrentUsersDAO dao = CurrentUsersDAO.getInstance();
-            List<CurrentUserEntry> users = dao.searchByLoginPrefix(prefix); // case-insensitive + LIMIT 5
+            List<CurrentUserEntry> users = dao.searchByLoginPrefix(prefix, isServer); // case-insensitive + LIMIT 5
 
             List<String> logins = new ArrayList<>();
             for (CurrentUserEntry u : users) {
@@ -53,7 +54,7 @@ public class Net_SearchUsers_Handler implements JsonMessageHandler {
             resp.setStatus(WireCodes.Status.OK);
             resp.setLogins(logins);
 
-            log.info("✅ SearchUsers ok: prefix='{}' -> {}", prefix, logins.size());
+            log.info("✅ SearchUsers ok: prefix='{}', isServer={} -> {}", prefix, isServer, logins.size());
             return resp;
 
         } catch (SQLException e) {

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/tempToTest/entyties/Net_SearchUsers_Request.java

@@ -18,7 +18,10 @@ import server.logic.ws_protocol.JSON.entyties.Net_Request;
 public class Net_SearchUsers_Request extends Net_Request {
 
     private String prefix;
+    private Boolean isServer;
 
     public String getPrefix() { return prefix; }
     public void setPrefix(String prefix) { this.prefix = prefix; }
+    public Boolean getIsServer() { return isServer; }
+    public void setIsServer(Boolean isServer) { this.isServer = isServer; }
 }

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/DmSyncApplySupport.java

@@ -0,0 +1,50 @@
+package server.logic.ws_protocol.JSON.messages;
+
+import shine.db.dao.SignedMessagesDAO;
+import shine.db.entities.SignedMessageEntry;
+
+public final class DmSyncApplySupport {
+    private DmSyncApplySupport() {}
+
+    public static ApplyResult applySyncedBlob(String ownerLogin, String blobB64) throws Exception {
+        if (ownerLogin == null || ownerLogin.isBlank()) {
+            throw new IllegalArgumentException("EMPTY_OWNER_LOGIN");
+        }
+        if (blobB64 == null || blobB64.isBlank()) {
+            throw new IllegalArgumentException("EMPTY_BLOB");
+        }
+
+        SignedMessageBlock block = SignedMessagesCore.parseFromB64(blobB64);
+        SignedMessagesCore.verifyUsersAndSignature(block);
+        SignedMessageEntry entry = SignedMessagesCore.toEntry(block, "DmSyncBatch", null);
+        String owner = ownerLogin.trim();
+        boolean ownerMatchesTarget = entry.getTargetLogin().equalsIgnoreCase(owner);
+        boolean ownerMatchesDeletePair = block.isDeleteType()
+                && (entry.getFromLogin().equalsIgnoreCase(owner) || entry.getToLogin().equalsIgnoreCase(owner));
+        if (!ownerMatchesTarget && !ownerMatchesDeletePair) {
+            throw new IllegalArgumentException("TARGET_LOGIN_MISMATCH");
+        }
+
+        SignedMessagesDAO.ApplyStatus status;
+        if (block.isContentType()) {
+            status = SignedMessagesDAO.getInstance().upsertIncomingCopy(entry);
+        } else if (block.isReadReceiptType()) {
+            status = SignedMessagesDAO.getInstance().insertIfAbsent(entry);
+        } else if (block.isMessageDeleteType()) {
+            status = SignedMessagesDAO.getInstance().applyDeleteMessage(entry);
+        } else if (block.isConversationDeleteType()) {
+            status = SignedMessagesDAO.getInstance().applyDeleteConversation(entry);
+        } else {
+            throw new IllegalArgumentException("BAD_MESSAGE_TYPE");
+        }
+
+        return new ApplyResult(entry.getMessageKey(), entry.getBaseKey(), entry.getMessageType(), status);
+    }
+
+    public record ApplyResult(
+            String messageKey,
+            String baseKey,
+            int messageType,
+            SignedMessagesDAO.ApplyStatus status
+    ) {}
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/Net_DmSyncBatch_Handler.java

@@ -0,0 +1,114 @@
+package server.logic.ws_protocol.JSON.messages;
+
+import server.logic.ws_protocol.JSON.ConnectionContext;
+import server.logic.ws_protocol.JSON.entyties.Net_Request;
+import server.logic.ws_protocol.JSON.entyties.Net_Response;
+import server.logic.ws_protocol.JSON.handlers.JsonMessageHandler;
+import server.logic.ws_protocol.JSON.messages.entyties.Net_DmSyncBatch_Request;
+import server.logic.ws_protocol.JSON.messages.entyties.Net_DmSyncBatch_Response;
+import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
+import server.logic.ws_protocol.WireCodes;
+import shine.db.dao.SignedMessagesDAO;
+import shine.db.dao.UserAccessServersCurrentDAO;
+import shine.db.entities.SignedMessageEntry;
+import shine.db.entities.UserAccessServerRouteEntry;
+import utils.config.AppConfig;
+
+import java.util.ArrayList;
+import java.util.Base64;
+import java.util.List;
+
+public class Net_DmSyncBatch_Handler implements JsonMessageHandler {
+    private static final int DEFAULT_LIMIT = 500;
+    private static final int MAX_LIMIT = 500;
+    private static final int DEFAULT_MAX_BYTES = 3_000_000;
+    private static final int MAX_BYTES_CAP = 5_000_000;
+    private static final String SERVER_LOGIN_CONFIG = "server.SHiNE.login";
+
+    @Override
+    public Net_Response handle(Net_Request baseRequest, ConnectionContext ctx) throws Exception {
+        Net_DmSyncBatch_Request req = (Net_DmSyncBatch_Request) baseRequest;
+        String ownerLogin = normalizeOriginal(req.getOwnerLogin());
+        if (ownerLogin == null) {
+            return NetExceptionResponseFactory.error(req, WireCodes.Status.BAD_REQUEST, "EMPTY_OWNER_LOGIN", "ownerLogin обязателен");
+        }
+
+        String ownServerLogin = normalize(AppConfig.getInstance().getParam(SERVER_LOGIN_CONFIG));
+        if (ownServerLogin == null) {
+            return NetExceptionResponseFactory.error(req, 500, "LOCAL_SERVER_NOT_CONFIGURED", "server.SHiNE.login не настроен");
+        }
+        if (!isLocalAccessServer(ownerLogin, ownServerLogin)) {
+            return NetExceptionResponseFactory.error(req, 403, "LOCAL_SERVER_NOT_ACCESS_SERVER", "Локальный сервер не является access-сервером пользователя");
+        }
+
+        int limit = clamp(req.getLimit() == null ? DEFAULT_LIMIT : req.getLimit(), 1, MAX_LIMIT);
+        int maxBytes = clamp(req.getMaxBytes() == null ? DEFAULT_MAX_BYTES : req.getMaxBytes(), 64_000, MAX_BYTES_CAP);
+        long afterStoredAtMs = Math.max(0L, req.getAfterStoredAtMs() == null ? 0L : req.getAfterStoredAtMs());
+        String afterMessageKey = req.getAfterMessageKey() == null ? "" : req.getAfterMessageKey().trim();
+
+        SignedMessagesDAO.SyncBatch batch = SignedMessagesDAO.getInstance().listSyncBatch(
+                ownerLogin,
+                afterStoredAtMs,
+                afterMessageKey,
+                limit,
+                maxBytes
+        );
+
+        Net_DmSyncBatch_Response resp = new Net_DmSyncBatch_Response();
+        resp.setOp(req.getOp());
+        resp.setRequestId(req.getRequestId());
+        resp.setStatus(WireCodes.Status.OK);
+        resp.setOwnerLogin(ownerLogin);
+        resp.setLimit(limit);
+        resp.setRawBytes(batch.rawBytes());
+        resp.setHasMore(batch.hasMore());
+        resp.setNextStoredAtMs(afterStoredAtMs);
+        resp.setNextMessageKey(afterMessageKey);
+
+        List<Net_DmSyncBatch_Response.Item> items = new ArrayList<>();
+        Base64.Encoder encoder = Base64.getEncoder();
+        for (SignedMessageEntry entry : batch.items()) {
+            Net_DmSyncBatch_Response.Item item = new Net_DmSyncBatch_Response.Item();
+            item.setMessageKey(entry.getMessageKey());
+            item.setBaseKey(entry.getBaseKey());
+            item.setTargetLogin(entry.getTargetLogin());
+            item.setFromLogin(entry.getFromLogin());
+            item.setToLogin(entry.getToLogin());
+            item.setMessageType(entry.getMessageType());
+            item.setTimeMs(entry.getTimeMs());
+            item.setStoredAtMs(entry.getCreatedAtMs());
+            item.setBlobB64(encoder.encodeToString(entry.getRawBlock()));
+            items.add(item);
+            resp.setNextStoredAtMs(entry.getCreatedAtMs());
+            resp.setNextMessageKey(entry.getMessageKey());
+        }
+        resp.setItems(items);
+        return resp;
+    }
+
+    private boolean isLocalAccessServer(String ownerLogin, String ownServerLogin) throws Exception {
+        for (UserAccessServerRouteEntry route : UserAccessServersCurrentDAO.getInstance().listByUserLogin(ownerLogin)) {
+            if (route == null || route.getServerLogin() == null) continue;
+            if (ownServerLogin.equals(normalize(route.getServerLogin()))) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static int clamp(int value, int min, int max) {
+        return Math.max(min, Math.min(max, value));
+    }
+
+    private static String normalize(String value) {
+        if (value == null) return null;
+        String s = value.trim().toLowerCase();
+        return s.isEmpty() ? null : s;
+    }
+
+    private static String normalizeOriginal(String value) {
+        if (value == null) return null;
+        String s = value.trim();
+        return s.isEmpty() ? null : s;
+    }
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/Net_ReceiveIncomingMessage_Handler.java

@@ -53,6 +53,11 @@ public class Net_ReceiveIncomingMessage_Handler implements JsonMessageHandler {
         SignedMessagesRealtime.DeliveryCounters counters = new SignedMessagesRealtime.DeliveryCounters();
         if (status.applied()) {
             counters = SignedMessagesRealtime.deliverToRelevantSessions(entry, incoming);
+            server.sync.DmFederationService.fanOutIncomingToRecipientAccessServers(
+                    incoming.toLogin,
+                    req.getIncomingBlobB64().trim(),
+                    req.getSourceServerLogin()
+            );
         }
         if (status == SignedMessagesDAO.ApplyStatus.BLOCKED_BY_CONVERSATION_TOMBSTONE) {
             bounceConversationDeleteIfKnown(incoming.fromLogin, incoming.toLogin);

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/entyties/Net_DmSyncBatch_Request.java

@@ -0,0 +1,22 @@
+package server.logic.ws_protocol.JSON.messages.entyties;
+
+import server.logic.ws_protocol.JSON.entyties.Net_Request;
+
+public class Net_DmSyncBatch_Request extends Net_Request {
+    private String ownerLogin;
+    private Long afterStoredAtMs;
+    private String afterMessageKey;
+    private Integer limit;
+    private Integer maxBytes;
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+    public Long getAfterStoredAtMs() { return afterStoredAtMs; }
+    public void setAfterStoredAtMs(Long afterStoredAtMs) { this.afterStoredAtMs = afterStoredAtMs; }
+    public String getAfterMessageKey() { return afterMessageKey; }
+    public void setAfterMessageKey(String afterMessageKey) { this.afterMessageKey = afterMessageKey; }
+    public Integer getLimit() { return limit; }
+    public void setLimit(Integer limit) { this.limit = limit; }
+    public Integer getMaxBytes() { return maxBytes; }
+    public void setMaxBytes(Integer maxBytes) { this.maxBytes = maxBytes; }
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/entyties/Net_DmSyncBatch_Response.java

@@ -0,0 +1,62 @@
+package server.logic.ws_protocol.JSON.messages.entyties;
+
+import server.logic.ws_protocol.JSON.entyties.Net_Response;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Net_DmSyncBatch_Response extends Net_Response {
+    private String ownerLogin;
+    private int limit;
+    private int rawBytes;
+    private boolean hasMore;
+    private long nextStoredAtMs;
+    private String nextMessageKey;
+    private List<Item> items = new ArrayList<>();
+
+    public String getOwnerLogin() { return ownerLogin; }
+    public void setOwnerLogin(String ownerLogin) { this.ownerLogin = ownerLogin; }
+    public int getLimit() { return limit; }
+    public void setLimit(int limit) { this.limit = limit; }
+    public int getRawBytes() { return rawBytes; }
+    public void setRawBytes(int rawBytes) { this.rawBytes = rawBytes; }
+    public boolean isHasMore() { return hasMore; }
+    public void setHasMore(boolean hasMore) { this.hasMore = hasMore; }
+    public long getNextStoredAtMs() { return nextStoredAtMs; }
+    public void setNextStoredAtMs(long nextStoredAtMs) { this.nextStoredAtMs = nextStoredAtMs; }
+    public String getNextMessageKey() { return nextMessageKey; }
+    public void setNextMessageKey(String nextMessageKey) { this.nextMessageKey = nextMessageKey; }
+    public List<Item> getItems() { return items; }
+    public void setItems(List<Item> items) { this.items = items; }
+
+    public static class Item {
+        private String messageKey;
+        private String baseKey;
+        private String targetLogin;
+        private String fromLogin;
+        private String toLogin;
+        private int messageType;
+        private long timeMs;
+        private long storedAtMs;
+        private String blobB64;
+
+        public String getMessageKey() { return messageKey; }
+        public void setMessageKey(String messageKey) { this.messageKey = messageKey; }
+        public String getBaseKey() { return baseKey; }
+        public void setBaseKey(String baseKey) { this.baseKey = baseKey; }
+        public String getTargetLogin() { return targetLogin; }
+        public void setTargetLogin(String targetLogin) { this.targetLogin = targetLogin; }
+        public String getFromLogin() { return fromLogin; }
+        public void setFromLogin(String fromLogin) { this.fromLogin = fromLogin; }
+        public String getToLogin() { return toLogin; }
+        public void setToLogin(String toLogin) { this.toLogin = toLogin; }
+        public int getMessageType() { return messageType; }
+        public void setMessageType(int messageType) { this.messageType = messageType; }
+        public long getTimeMs() { return timeMs; }
+        public void setTimeMs(long timeMs) { this.timeMs = timeMs; }
+        public long getStoredAtMs() { return storedAtMs; }
+        public void setStoredAtMs(long storedAtMs) { this.storedAtMs = storedAtMs; }
+        public String getBlobB64() { return blobB64; }
+        public void setBlobB64(String blobB64) { this.blobB64 = blobB64; }
+    }
+}

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/entyties/Net_ReceiveIncomingMessage_Request.java

@@ -4,7 +4,10 @@ import server.logic.ws_protocol.JSON.entyties.Net_Request;
 
 public class Net_ReceiveIncomingMessage_Request extends Net_Request {
     private String incomingBlobB64;
+    private String sourceServerLogin;
 
     public String getIncomingBlobB64() { return incomingBlobB64; }
     public void setIncomingBlobB64(String incomingBlobB64) { this.incomingBlobB64 = incomingBlobB64; }
+    public String getSourceServerLogin() { return sourceServerLogin; }
+    public void setSourceServerLogin(String sourceServerLogin) { this.sourceServerLogin = sourceServerLogin; }
 }

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/messages/entyties/Net_SendMessagePair_Request.java

@@ -5,9 +5,12 @@ import server.logic.ws_protocol.JSON.entyties.Net_Request;
 public class Net_SendMessagePair_Request extends Net_Request {
     private String incomingBlobB64;
     private String outgoingBlobB64;
+    private String sourceServerLogin;
 
     public String getIncomingBlobB64() { return incomingBlobB64; }
     public void setIncomingBlobB64(String incomingBlobB64) { this.incomingBlobB64 = incomingBlobB64; }
     public String getOutgoingBlobB64() { return outgoingBlobB64; }
     public void setOutgoingBlobB64(String outgoingBlobB64) { this.outgoingBlobB64 = outgoingBlobB64; }
+    public String getSourceServerLogin() { return sourceServerLogin; }
+    public void setSourceServerLogin(String sourceServerLogin) { this.sourceServerLogin = sourceServerLogin; }
 }

SHiNE-server/shine-server-net-protocol/src/main/java/server/sync/DmFederationService.java

@@ -2,7 +2,8 @@ package server.sync;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import server.logic.ws_protocol.JSON.handlers.auth.SolanaUserPdaImportService;
+import shine.db.dao.UserAccessServersCurrentDAO;
+import shine.db.entities.UserAccessServerRouteEntry;
 import utils.config.AppConfig;
 
 import java.util.LinkedHashMap;
@@ -18,26 +19,48 @@ public final class DmFederationService {
 
     public static void fanOutPair(String fromLogin, String toLogin, String incomingBlobB64, String outgoingBlobB64) {
         try {
-            Map<String, SolanaUserPdaImportService.ParsedServerRoute> senderRoutes =
+            Map<String, UserAccessServerRouteEntry> senderRoutes =
-                    routesByLogin(SolanaUserPdaImportService.fetchAccessServerRoutesByLogin(fromLogin));
+                    routesByLogin(UserAccessServersCurrentDAO.getInstance().listByUserLogin(fromLogin));
-            Map<String, SolanaUserPdaImportService.ParsedServerRoute> recipientRoutes =
+            Map<String, UserAccessServerRouteEntry> recipientRoutes =
-                    routesByLogin(SolanaUserPdaImportService.fetchAccessServerRoutesByLogin(toLogin));
+                    routesByLogin(UserAccessServersCurrentDAO.getInstance().listByUserLogin(toLogin));
 
             String ownServerLogin = ownServerLogin();
-            for (SolanaUserPdaImportService.ParsedServerRoute route : senderRoutes.values()) {
+            for (UserAccessServerRouteEntry route : senderRoutes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
-                REMOTE.sendMessagePair(route.serverAddress(), incomingBlobB64, outgoingBlobB64);
+                REMOTE.sendMessagePair(route.getServerUrl(), incomingBlobB64, outgoingBlobB64, ownServerLogin);
             }
-            for (SolanaUserPdaImportService.ParsedServerRoute route : recipientRoutes.values()) {
+            for (UserAccessServerRouteEntry route : recipientRoutes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
-                if (senderRoutes.containsKey(route.login())) continue;
+                if (senderRoutes.containsKey(normalize(route.getServerLogin()))) continue;
-                REMOTE.receiveIncomingMessage(route.serverAddress(), incomingBlobB64);
+                REMOTE.receiveIncomingMessage(route.getServerUrl(), incomingBlobB64, ownServerLogin);
             }
         } catch (Exception e) {
             log.warn("DM federation pair fan-out failed: from={} to={}", fromLogin, toLogin, e);
         }
     }
 
+    public static void fanOutIncomingToRecipientAccessServers(
+            String toLogin,
+            String incomingBlobB64,
+            String sourceServerLogin
+    ) {
+        try {
+            Map<String, UserAccessServerRouteEntry> recipientRoutes =
+                    routesByLogin(UserAccessServersCurrentDAO.getInstance().listByUserLogin(toLogin));
+            String ownServerLogin = ownServerLogin();
+            String normalizedSource = normalize(sourceServerLogin);
+            for (UserAccessServerRouteEntry route : recipientRoutes.values()) {
+                String routeLogin = normalize(route.getServerLogin());
+                if (routeLogin == null) continue;
+                if (ownServerLogin != null && ownServerLogin.equalsIgnoreCase(routeLogin)) continue;
+                if (normalizedSource != null && normalizedSource.equalsIgnoreCase(routeLogin)) continue;
+                REMOTE.receiveIncomingMessage(route.getServerUrl(), incomingBlobB64, ownServerLogin);
+            }
+        } catch (Exception e) {
+            log.warn("DM federation incoming relay failed: to={}", toLogin, e);
+        }
+    }
+
     public static void fanOutDeleteMessage(String fromLogin, String toLogin, int messageType, String blobB64) {
         fanOutSingleDelete(fromLogin, toLogin, messageType, blobB64, true);
     }
@@ -48,17 +71,17 @@ public final class DmFederationService {
 
     private static void fanOutSingleDelete(String fromLogin, String toLogin, int messageType, String blobB64, boolean oneMessageDelete) {
         try {
-            Map<String, SolanaUserPdaImportService.ParsedServerRoute> routes = routesByLogin(
+            Map<String, UserAccessServerRouteEntry> routes = routesByLogin(
-                    SolanaUserPdaImportService.fetchAccessServerRoutesByLogin(fromLogin),
+                    UserAccessServersCurrentDAO.getInstance().listByUserLogin(fromLogin),
-                    SolanaUserPdaImportService.fetchAccessServerRoutesByLogin(toLogin)
+                    UserAccessServersCurrentDAO.getInstance().listByUserLogin(toLogin)
             );
             String ownServerLogin = ownServerLogin();
-            for (SolanaUserPdaImportService.ParsedServerRoute route : routes.values()) {
+            for (UserAccessServerRouteEntry route : routes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
                 if (oneMessageDelete) {
-                    REMOTE.deleteMessage(route.serverAddress(), blobB64);
+                    REMOTE.deleteMessage(route.getServerUrl(), blobB64);
                 } else {
-                    REMOTE.deleteConversation(route.serverAddress(), blobB64);
+                    REMOTE.deleteConversation(route.getServerUrl(), blobB64);
                 }
             }
         } catch (Exception e) {
@@ -68,15 +91,15 @@ public final class DmFederationService {
     }
 
     @SafeVarargs
-    private static Map<String, SolanaUserPdaImportService.ParsedServerRoute> routesByLogin(
+    private static Map<String, UserAccessServerRouteEntry> routesByLogin(
-            List<SolanaUserPdaImportService.ParsedServerRoute>... routeLists
+            List<UserAccessServerRouteEntry>... routeLists
     ) {
-        Map<String, SolanaUserPdaImportService.ParsedServerRoute> out = new LinkedHashMap<>();
+        Map<String, UserAccessServerRouteEntry> out = new LinkedHashMap<>();
-        for (List<SolanaUserPdaImportService.ParsedServerRoute> routeList : routeLists) {
+        for (List<UserAccessServerRouteEntry> routeList : routeLists) {
-            for (SolanaUserPdaImportService.ParsedServerRoute route : routeList) {
+            for (UserAccessServerRouteEntry route : routeList) {
                 if (route == null) continue;
-                String login = normalize(route.login());
+                String login = normalize(route.getServerLogin());
-                String address = route.serverAddress() == null ? "" : route.serverAddress().trim();
+                String address = route.getServerUrl() == null ? "" : route.getServerUrl().trim();
                 if (login == null || address.isBlank()) continue;
                 out.putIfAbsent(login, route);
             }
@@ -84,8 +107,11 @@ public final class DmFederationService {
         return out;
     }
 
-    private static boolean isOwnServer(SolanaUserPdaImportService.ParsedServerRoute route, String ownServerLogin) {
+    private static boolean isOwnServer(UserAccessServerRouteEntry route, String ownServerLogin) {
-        return ownServerLogin != null && ownServerLogin.equalsIgnoreCase(route.login());
+        return ownServerLogin != null
+                && route != null
+                && route.getServerLogin() != null
+                && ownServerLogin.equalsIgnoreCase(route.getServerLogin());
     }
 
     private static String ownServerLogin() {

SHiNE-server/shine-server-net-protocol/src/main/java/server/sync/RemoteDmSyncClient.java

@@ -8,6 +8,8 @@ import java.net.http.HttpClient;
 import java.net.http.WebSocket;
 import java.nio.ByteBuffer;
 import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionStage;
@@ -21,36 +23,83 @@ public final class RemoteDmSyncClient {
             .connectTimeout(Duration.ofSeconds(6))
             .build();
 
-    public void sendMessagePair(String serverAddressRaw, String incomingBlobB64, String outgoingBlobB64) throws Exception {
+    public void sendMessagePair(String serverAddressRaw, String incomingBlobB64, String outgoingBlobB64, String sourceServerLogin) throws Exception {
         String incomingJson = MAPPER.writeValueAsString(incomingBlobB64);
         String outgoingJson = MAPPER.writeValueAsString(outgoingBlobB64);
+        String sourceServerLoginJson = toOptionalJsonField("sourceServerLogin", sourceServerLogin);
         JsonNode response = send(serverAddressRaw, """
             {
               "op":"ReceiveOutcomingMessage",
               "requestId":%s,
               "payload":{
                 "incomingBlobB64":%s,
-                "outgoingBlobB64":%s
+                "outgoingBlobB64":%s%s
               }
             }
-            """.formatted("%s", incomingJson, outgoingJson));
+            """.formatted("%s", incomingJson, outgoingJson, sourceServerLoginJson));
         ensureOk("ReceiveOutcomingMessage", response);
     }
 
-    public void receiveIncomingMessage(String serverAddressRaw, String incomingBlobB64) throws Exception {
+    public void receiveIncomingMessage(String serverAddressRaw, String incomingBlobB64, String sourceServerLogin) throws Exception {
         String incomingJson = MAPPER.writeValueAsString(incomingBlobB64);
+        String sourceServerLoginJson = toOptionalJsonField("sourceServerLogin", sourceServerLogin);
         JsonNode response = send(serverAddressRaw, """
             {
               "op":"ReceiveIncomingMessage",
               "requestId":%s,
               "payload":{
-                "incomingBlobB64":%s
+                "incomingBlobB64":%s%s
               }
             }
-            """.formatted("%s", incomingJson));
+            """.formatted("%s", incomingJson, sourceServerLoginJson));
         ensureOk("ReceiveIncomingMessage", response);
     }
 
+    public RemoteDmBatch dmSyncBatch(
+            String serverAddressRaw,
+            String ownerLogin,
+            long afterStoredAtMs,
+            String afterMessageKey,
+            int limit,
+            int maxBytes
+    ) throws Exception {
+        String ownerLoginJson = MAPPER.writeValueAsString(ownerLogin);
+        String afterMessageKeyJson = MAPPER.writeValueAsString(afterMessageKey == null ? "" : afterMessageKey);
+        JsonNode response = send(serverAddressRaw, """
+            {
+              "op":"DmSyncBatch",
+              "requestId":%s,
+              "payload":{
+                "ownerLogin":%s,
+                "afterStoredAtMs":%d,
+                "afterMessageKey":%s,
+                "limit":%d,
+                "maxBytes":%d
+              }
+            }
+            """.formatted("%s", ownerLoginJson, Math.max(0L, afterStoredAtMs), afterMessageKeyJson, limit, maxBytes));
+        ensureOk("DmSyncBatch", response);
+
+        JsonNode payload = response.path("payload");
+        List<RemoteDmItem> items = new ArrayList<>();
+        JsonNode arr = payload.path("items");
+        if (arr.isArray()) {
+            for (JsonNode item : arr) {
+                items.add(new RemoteDmItem(
+                        item.path("messageKey").asText(""),
+                        item.path("storedAtMs").asLong(0L),
+                        item.path("blobB64").asText("")
+                ));
+            }
+        }
+        return new RemoteDmBatch(
+                payload.path("nextStoredAtMs").asLong(afterStoredAtMs),
+                payload.path("nextMessageKey").asText(afterMessageKey == null ? "" : afterMessageKey),
+                payload.path("hasMore").asBoolean(false),
+                items
+        );
+    }
+
     public void deleteMessage(String serverAddressRaw, String blobB64) throws Exception {
         String blobJson = MAPPER.writeValueAsString(blobB64);
         JsonNode response = send(serverAddressRaw, """
@@ -107,6 +156,13 @@ public final class RemoteDmSyncClient {
         return MAPPER.readTree(responseJson);
     }
 
+    private String toOptionalJsonField(String fieldName, String value) throws Exception {
+        if (value == null || value.isBlank()) {
+            return "";
+        }
+        return ",\n                \"" + fieldName + "\":" + MAPPER.writeValueAsString(value.trim());
+    }
+
     private void ensureOk(String op, JsonNode response) {
         int status = response.path("status").asInt(500);
         if (status >= 200 && status < 300) return;
@@ -126,6 +182,19 @@ public final class RemoteDmSyncClient {
         }
     }
 
+    public record RemoteDmBatch(
+            long nextStoredAtMs,
+            String nextMessageKey,
+            boolean hasMore,
+            List<RemoteDmItem> items
+    ) {}
+
+    public record RemoteDmItem(
+            String messageKey,
+            long storedAtMs,
+            String blobB64
+    ) {}
+
     private static final class SyncWsListener implements WebSocket.Listener {
         private final CompletableFuture<String> responseFuture;
         private final CountDownLatch openLatch;

SHiNE-server/src/main/java/server/sync/PeriodicDmSyncService.java

@@ -0,0 +1,185 @@
+package server.sync;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import server.logic.ws_protocol.JSON.messages.DmSyncApplySupport;
+import shine.db.dao.DmSyncPeerStateDAO;
+import shine.db.dao.UserAccessServersCurrentDAO;
+import shine.db.entities.DmSyncPeerStateEntry;
+import shine.db.entities.UserAccessServerRouteEntry;
+import utils.config.AppConfig;
+
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * Периодическая догоняющая синхронизация личной переписки между access-серверами пользователя.
+ */
+public final class PeriodicDmSyncService {
+    private static final Logger log = LoggerFactory.getLogger(PeriodicDmSyncService.class);
+    private static final String SERVER_LOGIN_CONFIG = "server.SHiNE.login";
+    private static final AtomicBoolean STARTED = new AtomicBoolean(false);
+
+    private static final RemoteDmSyncClient REMOTE = new RemoteDmSyncClient();
+    private static final UserAccessServersCurrentDAO ACCESS_DAO = UserAccessServersCurrentDAO.getInstance();
+    private static final DmSyncPeerStateDAO STATE_DAO = DmSyncPeerStateDAO.getInstance();
+
+    private static final ScheduledExecutorService EXECUTOR = Executors.newSingleThreadScheduledExecutor(new ThreadFactory() {
+        @Override
+        public Thread newThread(Runnable r) {
+            Thread t = new Thread(r, "periodic-dm-sync");
+            t.setDaemon(true);
+            return t;
+        }
+    });
+
+    private PeriodicDmSyncService() {}
+
+    public static void startOrLog() {
+        if (!isEnabled()) {
+            log.info("Periodic DM sync disabled by dm.sync.enabled=false");
+            return;
+        }
+        if (!STARTED.compareAndSet(false, true)) {
+            return;
+        }
+        long initialDelaySec = configLong("dm.sync.initialDelaySeconds", 60L, 0L, 3600L);
+        long periodHours = configLong("dm.sync.periodHours", 6L, 1L, 168L);
+        EXECUTOR.scheduleWithFixedDelay(
+                PeriodicDmSyncService::runCycleSafe,
+                initialDelaySec,
+                TimeUnit.HOURS.toSeconds(periodHours),
+                TimeUnit.SECONDS
+        );
+        log.info("Periodic DM sync scheduled: first run in {} seconds, then every {} hours", initialDelaySec, periodHours);
+    }
+
+    private static void runCycleSafe() {
+        try {
+            runCycle();
+        } catch (Exception e) {
+            log.error("Periodic DM sync failed unexpectedly", e);
+        }
+    }
+
+    private static void runCycle() throws Exception {
+        String ownServerLogin = normalize(AppConfig.getInstance().getParam(SERVER_LOGIN_CONFIG));
+        if (ownServerLogin == null) {
+            log.warn("Periodic DM sync skipped: {} is empty", SERVER_LOGIN_CONFIG);
+            return;
+        }
+
+        List<String> ownersRaw = ACCESS_DAO.listUserLoginsByServerLogin(ownServerLogin);
+        Set<String> owners = new LinkedHashSet<>(ownersRaw);
+        if (owners.isEmpty()) {
+            log.info("Periodic DM sync skipped: no local access-server users for {}", ownServerLogin);
+            return;
+        }
+
+        int syncedPeers = 0;
+        int appliedEvents = 0;
+        for (String ownerLogin : owners) {
+            List<UserAccessServerRouteEntry> routes = ACCESS_DAO.listByUserLogin(ownerLogin);
+            for (UserAccessServerRouteEntry route : routes) {
+                if (route == null) continue;
+                String remoteLogin = normalize(route.getServerLogin());
+                String remoteUrl = route.getServerUrl();
+                if (remoteLogin == null || remoteUrl == null || remoteUrl.isBlank()) continue;
+                if (remoteLogin.equals(ownServerLogin)) continue;
+
+                try {
+                    appliedEvents += syncOwnerFromRemote(ownerLogin, route);
+                    syncedPeers++;
+                } catch (Exception e) {
+                    STATE_DAO.updateError(ownerLogin, route.getServerLogin(), remoteUrl, String.valueOf(e));
+                    log.warn("Periodic DM sync peer failed: owner={} remoteServer={} reason={}",
+                            ownerLogin, route.getServerLogin(), String.valueOf(e));
+                }
+            }
+        }
+        log.info("Periodic DM sync cycle finished: owners={} syncedPeers={} appliedEvents={}",
+                owners.size(), syncedPeers, appliedEvents);
+    }
+
+    private static int syncOwnerFromRemote(String ownerLogin, UserAccessServerRouteEntry route) throws Exception {
+        int limit = (int) configLong("dm.sync.batchLimit", 500L, 1L, 500L);
+        int maxBytes = (int) configLong("dm.sync.batchMaxBytes", 3_000_000L, 64_000L, 5_000_000L);
+        int maxPages = (int) configLong("dm.sync.maxPagesPerPeer", 50L, 1L, 500L);
+
+        DmSyncPeerStateEntry state = STATE_DAO.getOrCreate(ownerLogin, route.getServerLogin(), route.getServerUrl());
+        long cursorStoredAtMs = state.getCursorStoredAtMs();
+        String cursorMessageKey = state.getCursorMessageKey() == null ? "" : state.getCursorMessageKey();
+        int applied = 0;
+        boolean bootstrapCompleted = false;
+
+        for (int page = 0; page < maxPages; page++) {
+            RemoteDmSyncClient.RemoteDmBatch batch = REMOTE.dmSyncBatch(
+                    route.getServerUrl(),
+                    ownerLogin,
+                    cursorStoredAtMs,
+                    cursorMessageKey,
+                    limit,
+                    maxBytes
+            );
+
+            for (RemoteDmSyncClient.RemoteDmItem item : batch.items()) {
+                if (item == null || item.blobB64() == null || item.blobB64().isBlank()) continue;
+                DmSyncApplySupport.ApplyResult result = DmSyncApplySupport.applySyncedBlob(ownerLogin, item.blobB64());
+                if (result.status().applied()) {
+                    applied++;
+                }
+            }
+
+            cursorStoredAtMs = Math.max(cursorStoredAtMs, batch.nextStoredAtMs());
+            cursorMessageKey = batch.nextMessageKey() == null ? "" : batch.nextMessageKey();
+            bootstrapCompleted = !batch.hasMore();
+            STATE_DAO.updateSuccess(
+                    ownerLogin,
+                    route.getServerLogin(),
+                    route.getServerUrl(),
+                    cursorStoredAtMs,
+                    cursorMessageKey,
+                    bootstrapCompleted
+            );
+
+            if (!batch.hasMore() || batch.items().isEmpty()) {
+                break;
+            }
+        }
+
+        if (!bootstrapCompleted) {
+            log.info("Periodic DM sync peer paused by page limit: owner={} remoteServer={} maxPages={}",
+                    ownerLogin, route.getServerLogin(), maxPages);
+        }
+        return applied;
+    }
+
+    private static boolean isEnabled() {
+        String raw = AppConfig.getInstance().getParam("dm.sync.enabled");
+        return raw == null || raw.isBlank() || Boolean.parseBoolean(raw.trim());
+    }
+
+    private static long configLong(String key, long defaultValue, long min, long max) {
+        String raw = AppConfig.getInstance().getParam(key);
+        if (raw == null || raw.isBlank()) return defaultValue;
+        try {
+            long parsed = Long.parseLong(raw.trim());
+            return Math.max(min, Math.min(max, parsed));
+        } catch (Exception ignored) {
+            return defaultValue;
+        }
+    }
+
+    private static String normalize(String value) {
+        if (value == null) return null;
+        String s = value.trim().toLowerCase(Locale.ROOT);
+        return s.isEmpty() ? null : s;
+    }
+}

SHiNE-server/src/main/java/server/ws/WsServer.java

@@ -8,6 +8,7 @@ import org.slf4j.LoggerFactory;
 import server.debug.DebugApiConfigurator;
 import server.sync.BlockchainResyncRecoveryOnStartup;
 import server.sync.PeriodicBlockchainSyncService;
+import server.sync.PeriodicDmSyncService;
 import server.sync.SolanaUsersSyncStartupService;
 import server.sync.SyncServersBootstrapService;
 import utils.config.AppConfig;
@@ -102,6 +103,7 @@ public final class WsServer {
 
         server.start();
         log.info("✅ WS сервер запущен на ws://localhost:{}/ws", port);
+        PeriodicDmSyncService.startOrLog();
         server.join();
     }
 }

SHiNE-server/src/main/resources/application.properties

@@ -33,6 +33,14 @@ sync.importUserProfileFromPartner.enabled=false
 # Если какое-то значение не задано, сервер вернёт пустую строку.
 # ------------------------------------------------------------
 server.version=${projectVersion}
+
+# Межсерверная догоняющая синхронизация личных сообщений.
+dm.sync.enabled=true
+dm.sync.initialDelaySeconds=60
+dm.sync.periodHours=6
+dm.sync.batchLimit=500
+dm.sync.batchMaxBytes=3000000
+dm.sync.maxPagesPerPeer=50
 server.info.url=
 server.info.physicalRegion=
 server.info.description=

VERSION.properties

@@ -1,2 +1,2 @@
-client.version=1.2.355
+client.version=1.2.359
-server.version=1.2.339
+server.version=1.2.342

docs/API/01_User_Registration_API.md

@@ -5,7 +5,7 @@
 Сейчас здесь два метода:
 
 - `GetUser` — временная серверная проверка существования пользователя и чтение его базовых данных;
-- `SearchUsers` — dev/test поиск логинов по префиксу.
+- `SearchUsers` — dev/test поиск логинов по префиксу, при необходимости с фильтром только по server PDA.
 
 Регистрация выполняется только через Solana.
 
@@ -111,6 +111,7 @@
 ### Назначение
 
 Поиск пользователей по префиксу логина. Операция зарегистрирована в серверном API и используется как вспомогательная dev/test операция.
+При необходимости можно включить фильтр только по server PDA.
 
 ### Запрос
 
@@ -119,11 +120,16 @@
   "op": "SearchUsers",
   "requestId": "search-001",
   "payload": {
-    "prefix": "an"
+    "prefix": "an",
+    "isServer": true
   }
 }
 ```
 
+- `prefix` — обязательный префикс логина.
+- `isServer` — необязательный boolean-флаг; если `true`, сервер вернёт только логины,
+  у которых в `solana_user_pda_current` стоит `is_server = true`.
+
 ### Успешный ответ
 
 ```json

docs/API/09_Operations_Index.md

@@ -61,6 +61,7 @@
 | `ReceiveIncomingMessage` | `12_Direct_Messages_Push_Calls_API.md` | прием входящего DM-блока |
 | `DeleteMessage` | `12_Direct_Messages_Push_Calls_API.md` | tombstone одного личного сообщения у обеих сторон |
 | `DeleteConversation` | `12_Direct_Messages_Push_Calls_API.md` | tombstone удаления истории переписки |
+| `DmSyncBatch` | `12_Direct_Messages_Push_Calls_API.md` | межсерверная догоняющая синхронизация DM по курсору |
 | `GetDirectMessages` | `12_Direct_Messages_Push_Calls_API.md` | постраничная загрузка истории личного диалога |
 | `AckSessionDelivery` | `12_Direct_Messages_Push_Calls_API.md` | подтверждение доставки в сессию |
 | `CallInviteBroadcast` | `12_Direct_Messages_Push_Calls_API.md` | broadcast приглашения к звонку |

docs/API/12_Direct_Messages_Push_Calls_API.md

@@ -10,7 +10,8 @@
 Важно:
 
 - legacy-операция `SendDirectMessage` отключена и не зарегистрирована в публичном API;
-- для DM v1 нужно использовать только `SendMessagePair`, `ReceiveOutcomingMessage`, `ReceiveIncomingMessage`, `DeleteMessage`, `DeleteConversation`.
+- для DM v1 нужно использовать `SendMessagePair`, `ReceiveOutcomingMessage`, `ReceiveIncomingMessage`, `DeleteMessage`, `DeleteConversation`, `GetDirectMessages`;
+- `DmSyncBatch` предназначен для межсерверной догоняющей синхронизации, не для обычного клиентского UI.
 
 ## 1. `UpsertPushToken`
 
@@ -139,11 +140,14 @@
   "op": "ReceiveIncomingMessage",
   "requestId": "dm-in-001",
   "payload": {
-    "incomingBlobB64": "BASE64_INCOMING_SIGNED_BLOCK"
+    "incomingBlobB64": "BASE64_INCOMING_SIGNED_BLOCK",
+    "sourceServerLogin": "server-a"
   }
 }
 ```
 
+`sourceServerLogin` необязателен. Если поле есть, сервер использует его как подсказку, чтобы не отправлять событие обратно серверу-источнику.
+
 ## 5. `DeleteMessage`
 
 Принимает один signed DM-блок `type=5` или `type=6`.
@@ -241,7 +245,69 @@
 
 Для следующей страницы клиент должен передать `nextBeforeTimeMs` и `nextBeforeMessageKey` из предыдущего ответа.
 
-## 8. `AckSessionDelivery`
+## 8. `DmSyncBatch`
+
+Межсерверная операция для догоняющей синхронизации истории одного пользователя. В текущей реализации не требует авторизации сервера-источника, но удалённый сервер отдаёт данные только если сам является access-сервером `ownerLogin` по `user_access_servers_current`.
+
+### Запрос
+
+```json
+{
+  "op": "DmSyncBatch",
+  "requestId": "dm-sync-001",
+  "payload": {
+    "ownerLogin": "alice",
+    "afterStoredAtMs": 1774700000000,
+    "afterMessageKey": "alice|bob|1774699999000|123456780|2",
+    "limit": 500,
+    "maxBytes": 3000000
+  }
+}
+```
+
+`afterStoredAtMs` и `afterMessageKey` образуют курсор. Если курсора нет, сервер передаёт `0` и пустую строку. `limit` ограничен максимумом `500`.
+
+### Успешный ответ
+
+```json
+{
+  "op": "DmSyncBatch",
+  "requestId": "dm-sync-001",
+  "status": 200,
+  "ok": true,
+  "payload": {
+    "ownerLogin": "alice",
+    "limit": 500,
+    "rawBytes": 84512,
+    "hasMore": true,
+    "nextStoredAtMs": 1774700100000,
+    "nextMessageKey": "alice|bob|1774700000123|123456789|1",
+    "items": [
+      {
+        "messageKey": "alice|bob|1774700000123|123456789|1",
+        "baseKey": "alice|bob|1774700000123|123456789",
+        "targetLogin": "alice",
+        "fromLogin": "bob",
+        "toLogin": "alice",
+        "messageType": 1,
+        "timeMs": 1774700000123,
+        "storedAtMs": 1774700100000,
+        "blobB64": "BASE64_SIGNED_BLOCK"
+      }
+    ]
+  }
+}
+```
+
+События в `items` идут по `storedAtMs ASC, messageKey ASC`. В пачке могут быть сообщения любых диалогов пользователя, read-receipt и delete/tombstone типов `5/6/7/8`.
+
+Ошибки:
+
+- `400 / EMPTY_OWNER_LOGIN` — не передан `ownerLogin`
+- `403 / LOCAL_SERVER_NOT_ACCESS_SERVER` — этот сервер не является access-сервером пользователя
+- `500 / LOCAL_SERVER_NOT_CONFIGURED` — не настроен `server.SHiNE.login`
+
+## 9. `AckSessionDelivery`
 
 Требует авторизации. Подтверждает доставку в текущую сессию.
 
@@ -257,7 +323,7 @@
 }
 ```
 
-## 9. Событие `SignedMessageArrived`
+## 10. Событие `SignedMessageArrived`
 
 Сервер присылает его по WebSocket в активные сессии адресата.
 
@@ -282,15 +348,15 @@
 
 Для типов `5/6/7/8` событие тоже приходит в таком же конверте, но логика применения определяется `messageType` и бинарным `blobB64`.
 
-## 10. `CallInviteBroadcast`
+## 11. `CallInviteBroadcast`
 
 Требует авторизации. Шлёт приглашение к звонку в активные сессии `toLogin`.
 
-## 10. `CallSignalToSession`
+## 12. `CallSignalToSession`
 
 Требует авторизации. Шлёт сигнал звонка в конкретную сессию.
 
-## 11. Замечания
+## 13. Замечания
 
 - все DM-типы `1..8` используют `SHiNE_DM`
 - `GetUser` может lazy-import пользователя из Solana PDA, поэтому именно через него клиент обычно получает `clientKey` адресата для E2EE

docs/Personal_Messages/Протокол_DM_v1.md

@@ -446,11 +446,14 @@ Request:
   "op": "ReceiveIncomingMessage",
   "requestId": "req-456",
   "payload": {
-    "incomingBlobB64": "..."
+    "incomingBlobB64": "...",
+    "sourceServerLogin": "server-a"
   }
 }
 ```
 
+`sourceServerLogin` необязателен и используется как best-effort подсказка, чтобы сервер при дальнейшей пересылке не отправлял то же событие обратно серверу-источнику.
+
 ### 10.3. `DeleteMessage`
 
 Назначение:
@@ -559,7 +562,50 @@ UI-следствие для клиента:
 
 Идемпотентность обязательна.
 
-### 11.3. Ошибки доставки
+### 11.3. Догоняющая синхронизация истории
+
+Для восстановления пропущенных DM-событий между access-серверами используется отдельная операция:
+
+- `DmSyncBatch`
+
+Сервер-получатель синхронизации запрашивает у другого access-сервера историю одного пользователя по курсору:
+
+- `ownerLogin`;
+- `afterStoredAtMs`;
+- `afterMessageKey`;
+- `limit`, максимум `500`;
+- `maxBytes`, ограничение суммарного размера raw-блоков пачки.
+
+Удалённый сервер отдаёт все DM-события, относящиеся к этому пользователю:
+
+- контентные копии и read-receipt по `target_login`;
+- tombstone типов `5/6/7/8`, где пользователь участвует как `fromLogin` или `toLogin`.
+
+Порядок пачки:
+
+- `created_at_ms ASC`;
+- `message_key ASC`.
+
+Курсор хранится локально для пары:
+
+- пользователь;
+- удалённый access-сервер.
+
+При первом добавлении сервера или отсутствии курсора синхронизация стартует с `0` и постепенно подтягивает всю доступную историю пачками.
+
+При применении событий, полученных через `DmSyncBatch`, сервер:
+
+- проверяет формат `SHiNE_DM`;
+- проверяет подпись;
+- применяет существующие правила ревизий, read-receipt и tombstone;
+- не отправляет realtime/push-уведомления клиентам;
+- не запускает повторный fan-out, чтобы не создавать циклы.
+
+Плановый sync запускается фоном после старта WebSocket-сервера и повторяется раз в 6 часов.
+
+В текущей реализации межсерверная авторизация для `DmSyncBatch` ещё не включена. Сервер отдаёт пачку только если сам локально является access-сервером `ownerLogin` по актуальной таблице `user_access_servers_current`.
+
+### 11.4. Ошибки доставки
 
 Если часть серверов временно недоступна:
 
@@ -571,7 +617,7 @@ UI-следствие для клиента:
 
 Основная таблица остаётся:
 
-- `signed_messages_v2`
+- `signed_messages`
 
 В ней должны сохраняться:
 
@@ -590,6 +636,12 @@ UI-следствие для клиента:
 
 Сообщение об удалении переписки тоже хранится в БД, а старые сообщения до его времени из БД удаляются.
 
+Для догоняющей межсерверной синхронизации дополнительно используются:
+
+- индекс по `target_login`, `created_at_ms`, `message_key`;
+- отдельные индексы по delete-событиям для `from_login` и `to_login`;
+- таблица `dm_sync_peer_state` с курсором чтения для пары `ownerLogin + remoteServerLogin`.
+
 ## 13. Что обязательно должно измениться в коде относительно v0.5
 
 - сервер не должен требовать одинаковый `encryptedBody` у `type=1` и `type=2`;
@@ -610,4 +662,4 @@ UI-следствие для клиента:
 - хранение отдельного `keyId` шифрования в DM;
 - ротация `clientKey`;
 - финальная конкретная UI-реализация массовой перешифровки;
-- физическая полная реализация DM federation в текущем коде.
+- межсерверная авторизация `DmSyncBatch`.

docs/Personal_Messages/Формат_DM_v1.md

@@ -327,3 +327,5 @@ ReadReceiptBody_v1_0
 ## 13. Примечание о поддержке
 
 В версии DM v1 все типы `1..8` используют единый контейнер `SHiNE_DM`.
+
+Межсерверная операция `DmSyncBatch` не вводит новый байтовый формат DM. Она передаёт уже сохранённые raw-контейнеры `SHiNE_DM` в Base64 вместе с серверными метаданными курсора (`storedAtMs`, `messageKey`), а принимающий сервер заново проверяет подпись и применяет тот же контейнер по его `messageType`.

shine-UI/js/app.js

@@ -56,6 +56,7 @@ import * as profileView from './pages/profile-view.js?v=202607150910';
 import * as profileEditView from './pages/profile-edit-view.js';
 import * as walletView from './pages/wallet-view.js?v=202606281930';
 import * as settingsView from './pages/settings-view.js';
+import * as accessServersView from './pages/access-servers-view.js';
 import * as developerSettingsView from './pages/developer-settings-view.js';
 import * as serverSettingsView from './pages/server-settings-view.js?v=202606161240';
 import * as remoteAddBlockSessionView from './pages/remote-addblock-session-view.js?v=202606281300';
@@ -116,6 +117,7 @@ const routes = {
   'profile-edit-view': profileEditView,
   'wallet-view': walletView,
   'settings-view': settingsView,
+  'access-servers-view': accessServersView,
   'developer-settings-view': developerSettingsView,
   'server-settings-view': serverSettingsView,
   'remote-addblock-session-view': remoteAddBlockSessionView,

shine-UI/js/pages/access-servers-view.js

@@ -0,0 +1,703 @@
+import { renderHeader } from '../components/header.js';
+import { authService, state } from '../state.js';
+import { base64ToBytes, bytesToBase58, publicKeyB64FromPkcs8Ed25519 } from '../services/crypto-utils.js';
+import { loadEncryptedUserSecrets } from '../services/key-vault.js';
+import { resolveShineServerByServerLogin } from '../services/shine-server-resolver.js';
+import { readShineUserPda, updateShineUserPdaOnSolana } from '../services/shine-user-pda-service.js';
+import { getTopupSiteUrl } from '../services/solana-wallet-service.js';
+
+export const pageMeta = { id: 'access-servers-view', title: 'Серверы доступа' };
+
+function escapeHtml(value) {
+  return String(value || '')
+    .replace(/&/g, '&')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+    .replace(/'/g, '&#39;');
+}
+
+function normalizeLogin(value) {
+  return String(value || '').trim().toLowerCase();
+}
+
+function equalBytes(a, b) {
+  const left = a instanceof Uint8Array ? a : new Uint8Array(a || []);
+  const right = b instanceof Uint8Array ? b : new Uint8Array(b || []);
+  if (left.length !== right.length) return false;
+  for (let i = 0; i < left.length; i += 1) {
+    if (left[i] !== right[i]) return false;
+  }
+  return true;
+}
+
+function uniqueLogins(values) {
+  const seen = new Set();
+  const result = [];
+  (Array.isArray(values) ? values : []).forEach((value) => {
+    const login = normalizeLogin(value);
+    if (!login || seen.has(login)) return;
+    seen.add(login);
+    result.push(login);
+  });
+  return result;
+}
+
+function shortenSignature(value) {
+  const text = String(value || '').trim();
+  if (text.length <= 16) return text;
+  return `${text.slice(0, 8)}...${text.slice(-8)}`;
+}
+
+function isInsufficientFundsForRentError(error) {
+  const text = [
+    error?.message,
+    error?.transactionMessage,
+    Array.isArray(error?.logs) ? error.logs.join('\n') : '',
+    Array.isArray(error?.transactionLogs) ? error.transactionLogs.join('\n') : '',
+    Array.isArray(error?.simulationLogs) ? error.simulationLogs.join('\n') : '',
+  ].filter(Boolean).join('\n').toLowerCase();
+  return text.includes('insufficient funds') && text.includes('rent');
+}
+
+function clientAddressFromPublicB64(publicKeyB64) {
+  const bytes = base64ToBytes(publicKeyB64);
+  if (bytes.length !== 32) throw new Error('client public key должен быть 32 байта');
+  return bytesToBase58(bytes);
+}
+
+async function clientAddressFromPrivatePkcs8(privatePkcs8B64) {
+  return clientAddressFromPublicB64(await publicKeyB64FromPkcs8Ed25519(privatePkcs8B64));
+}
+
+function createConfirmModal() {
+  const root = document.getElementById('modal-root');
+  if (!(root instanceof HTMLElement)) return null;
+
+  let onConfirm = null;
+  let onCancel = null;
+
+  const close = () => {
+    root.innerHTML = '';
+    onConfirm = null;
+    onCancel = null;
+  };
+
+  return {
+    open({
+      title,
+      text,
+      note = '',
+      confirmLabel = 'Да',
+      cancelLabel = 'Нет',
+      onConfirm: confirmHandler,
+      onCancel: cancelHandler,
+    }) {
+      root.innerHTML = `
+        <div class="modal" id="access-servers-confirm-modal">
+          <div class="modal-card stack" style="max-width:min(94vw,34rem);">
+            <h3 class="modal-title" id="access-servers-dialog-title"></h3>
+            <p class="meta-muted" id="access-servers-dialog-text" style="white-space:pre-wrap; line-height:1.45;"></p>
+            <p class="meta-muted" id="access-servers-dialog-note"${note ? '' : ' hidden'} style="white-space:pre-wrap; line-height:1.45;"></p>
+            <div class="auth-footer-actions">
+              <button class="ghost-btn" type="button" id="access-servers-dialog-cancel"></button>
+              <button class="primary-btn" type="button" id="access-servers-dialog-confirm"></button>
+            </div>
+          </div>
+        </div>
+      `;
+      const modal = root.querySelector('#access-servers-confirm-modal');
+      const titleEl = root.querySelector('#access-servers-dialog-title');
+      const textEl = root.querySelector('#access-servers-dialog-text');
+      const noteEl = root.querySelector('#access-servers-dialog-note');
+      const cancelBtn = root.querySelector('#access-servers-dialog-cancel');
+      const confirmBtn = root.querySelector('#access-servers-dialog-confirm');
+      if (!(modal instanceof HTMLElement)
+        || !(titleEl instanceof HTMLElement)
+        || !(textEl instanceof HTMLElement)
+        || !(noteEl instanceof HTMLElement)
+        || !(cancelBtn instanceof HTMLButtonElement)
+        || !(confirmBtn instanceof HTMLButtonElement)) {
+        close();
+        return;
+      }
+
+      titleEl.textContent = String(title || 'Подтверждение');
+      textEl.textContent = String(text || '');
+      if (note) {
+        noteEl.hidden = false;
+        noteEl.textContent = String(note);
+      } else {
+        noteEl.hidden = true;
+        noteEl.textContent = '';
+      }
+      cancelBtn.textContent = String(cancelLabel || 'Нет');
+      confirmBtn.textContent = String(confirmLabel || 'Да');
+      onConfirm = confirmHandler || null;
+      onCancel = cancelHandler || null;
+
+      modal.addEventListener('click', (event) => {
+        if (event.target === modal) close();
+      });
+      cancelBtn.addEventListener('click', async () => {
+        const handler = onCancel;
+        close();
+        if (typeof handler === 'function') await handler();
+      });
+      confirmBtn.addEventListener('click', async () => {
+        const handler = onConfirm;
+        close();
+        if (typeof handler === 'function') await handler();
+      });
+    },
+    destroy() {
+      close();
+    },
+  };
+}
+
+function createPasswordModal() {
+  const root = document.getElementById('modal-root');
+  if (!(root instanceof HTMLElement)) return null;
+
+  return {
+    open({ title, text, note = '' }) {
+      root.innerHTML = `
+        <div class="modal" id="access-servers-password-modal">
+          <div class="modal-card stack" style="max-width:min(94vw,36rem);">
+            <h3 class="modal-title" id="access-servers-password-title"></h3>
+            <p class="meta-muted" id="access-servers-password-text" style="white-space:pre-wrap; line-height:1.45;"></p>
+            <p class="meta-muted" id="access-servers-password-note"${note ? '' : ' hidden'} style="white-space:pre-wrap; line-height:1.45;"></p>
+            <label class="stack" style="gap:0.35rem;">
+              <span class="field-label">Пароль аккаунта</span>
+              <input class="input" id="access-servers-password-input" type="password" autocomplete="current-password" placeholder="Введите пароль" />
+            </label>
+            <div class="stack" style="gap:0.45rem;">
+              <label class="checkbox-row">
+                <input type="radio" name="access-servers-key-mode" value="once" checked />
+                <span>Использовать root key только сейчас</span>
+              </label>
+              <label class="checkbox-row">
+                <input type="radio" name="access-servers-key-mode" value="save" />
+                <span>Сохранить root key на этом устройстве</span>
+              </label>
+            </div>
+            <p class="meta-muted">client key при необходимости тоже будет временно восстановлен из пароля. Если выбрать сохранение, он тоже попадёт в зашифрованный контейнер устройства.</p>
+            <div class="form-actions-grid">
+              <button class="secondary-btn" type="button" id="access-servers-password-cancel">Отмена</button>
+              <button class="primary-btn" type="button" id="access-servers-password-confirm">Продолжить</button>
+            </div>
+          </div>
+        </div>
+      `;
+
+      return new Promise((resolve) => {
+        const modal = root.querySelector('#access-servers-password-modal');
+        const titleEl = root.querySelector('#access-servers-password-title');
+        const textEl = root.querySelector('#access-servers-password-text');
+        const noteEl = root.querySelector('#access-servers-password-note');
+        const inputEl = root.querySelector('#access-servers-password-input');
+        const cancelBtn = root.querySelector('#access-servers-password-cancel');
+        const confirmBtn = root.querySelector('#access-servers-password-confirm');
+        if (!(modal instanceof HTMLElement)
+          || !(titleEl instanceof HTMLElement)
+          || !(textEl instanceof HTMLElement)
+          || !(noteEl instanceof HTMLElement)
+          || !(inputEl instanceof HTMLInputElement)
+          || !(cancelBtn instanceof HTMLButtonElement)
+          || !(confirmBtn instanceof HTMLButtonElement)) {
+          root.innerHTML = '';
+          resolve(null);
+          return;
+        }
+
+        titleEl.textContent = String(title || 'Введите пароль');
+        textEl.textContent = String(text || '');
+        if (note) {
+          noteEl.hidden = false;
+          noteEl.textContent = String(note);
+        } else {
+          noteEl.hidden = true;
+          noteEl.textContent = '';
+        }
+
+        const close = (result = null) => {
+          root.innerHTML = '';
+          resolve(result);
+        };
+
+        modal.addEventListener('click', (event) => {
+          if (event.target === modal) close(null);
+        });
+        cancelBtn.addEventListener('click', () => close(null));
+        inputEl.addEventListener('keydown', (event) => {
+          if (event.key === 'Enter') {
+            event.preventDefault();
+            confirmBtn.click();
+          }
+        });
+        confirmBtn.addEventListener('click', () => {
+          const password = String(inputEl.value || '');
+          if (!password.trim()) {
+            inputEl.focus();
+            return;
+          }
+          const mode = root.querySelector('input[name="access-servers-key-mode"]:checked');
+          close({
+            password,
+            saveRoot: mode instanceof HTMLInputElement && mode.value === 'save',
+          });
+        });
+        window.setTimeout(() => inputEl.focus(), 0);
+      });
+    },
+    destroy() {
+      root.innerHTML = '';
+    },
+  };
+}
+
+export function render({ navigate }) {
+  const screen = document.createElement('section');
+  screen.className = 'stack';
+
+  const sessionLogin = normalizeLogin(state.session.login);
+  const solanaEndpoint = String(state.entrySettings.solanaServer || '').trim();
+  const storagePwd = String(state.session.storagePwdInMemory || '').trim();
+
+  let disposed = false;
+  let operationBusy = false;
+  let currentAccessServers = [];
+  let selectedCandidate = null;
+  let suggestionsLoading = false;
+
+  const confirmModal = createConfirmModal();
+  const passwordModal = createPasswordModal();
+
+  const introCard = document.createElement('div');
+  introCard.className = 'card stack';
+  introCard.innerHTML = `
+    <p class="field-label">Где хранятся личные данные</p>
+    <p class="meta-muted">
+      Серверы доступа хранят зашифрованную личную переписку пользователя и участвуют в звонках.
+      Всё, что публикуется в блокчейне SHiNE, доступно через любой сервер Сияния,
+      а доступ пользователя и приватная переписка хранятся только на этих серверах.
+    </p>
+  `;
+
+  const listCard = document.createElement('div');
+  listCard.className = 'card stack';
+  const listTitle = document.createElement('p');
+  listTitle.className = 'field-label';
+  listTitle.textContent = 'Текущий список серверов доступа';
+  const listHint = document.createElement('p');
+  listHint.className = 'meta-muted';
+  listHint.textContent = sessionLogin
+    ? `Пользователь: @${sessionLogin}`
+    : 'В текущей сессии не найден логин пользователя.';
+  const listBody = document.createElement('div');
+  listBody.className = 'stack';
+  const listStatus = document.createElement('p');
+  listStatus.className = 'meta-muted';
+  listStatus.textContent = 'Загрузка данных из PDA...';
+  listCard.append(listTitle, listHint, listBody, listStatus);
+
+  const addCard = document.createElement('div');
+  addCard.className = 'card stack';
+  const addTitle = document.createElement('p');
+  addTitle.className = 'field-label';
+  addTitle.textContent = 'Добавить сервер доступа';
+  const addHint = document.createElement('p');
+  addHint.className = 'meta-muted';
+  addHint.textContent = 'Введите логин сервера или несколько первых букв, затем выберите сервер из подсказок.';
+  const addInput = document.createElement('input');
+  addInput.className = 'input';
+  addInput.type = 'text';
+  addInput.autocomplete = 'off';
+  addInput.placeholder = 'Например: shineup';
+  const suggestEl = document.createElement('div');
+  suggestEl.className = 'profile-relative-search-suggest';
+  suggestEl.hidden = true;
+  const addStatus = document.createElement('p');
+  addStatus.className = 'meta-muted';
+  addStatus.textContent = 'Для изменения списка понадобится подпись root key.';
+  const addButton = document.createElement('button');
+  addButton.className = 'primary-btn';
+  addButton.type = 'button';
+  addButton.textContent = 'Добавить сервер';
+  addButton.disabled = true;
+  addCard.append(addTitle, addHint, addInput, suggestEl, addStatus, addButton);
+
+  const refreshAddButton = () => {
+    addButton.disabled = operationBusy || (!selectedCandidate && !normalizeLogin(addInput.value));
+  };
+
+  const setOperationBusy = (busy) => {
+    operationBusy = busy;
+    addInput.disabled = busy;
+    refreshAddButton();
+    listBody.querySelectorAll('button').forEach((button) => {
+      button.disabled = busy;
+    });
+  };
+
+  const setSelectedCandidate = (candidate) => {
+    selectedCandidate = candidate;
+    refreshAddButton();
+    if (candidate) {
+      addInput.value = candidate.login;
+      addStatus.textContent = `Выбран сервер @${candidate.login}${candidate.url ? ` (${candidate.url})` : ''}`;
+    } else {
+      addStatus.textContent = 'Для изменения списка понадобится подпись root key.';
+    }
+  };
+
+  const renderServerList = () => {
+    listBody.innerHTML = '';
+    if (!currentAccessServers.length) {
+      const empty = document.createElement('p');
+      empty.className = 'meta-muted';
+      empty.textContent = 'Список серверов доступа пока пуст.';
+      listBody.append(empty);
+      return;
+    }
+
+    currentAccessServers.forEach((server, index) => {
+      const button = document.createElement('button');
+      button.className = 'text-btn';
+      button.type = 'button';
+      button.disabled = operationBusy;
+      button.innerHTML = `
+        <span style="display:block; text-align:left;">
+          <strong>@${escapeHtml(server.login)}</strong>
+          <span class="meta-muted" style="display:block; margin-top:0.2rem;">${escapeHtml(server.url || 'URL не указан')}</span>
+        </span>
+      `;
+      button.addEventListener('click', () => {
+        if (operationBusy) return;
+        const isLast = currentAccessServers.length <= 1;
+        const performDisable = async () => {
+          const nextList = currentAccessServers
+            .map((item) => item.login)
+            .filter((login) => login !== server.login);
+          try {
+            await updateAccessServers(nextList, {
+              statusTarget: listStatus,
+              successText: `Сервер доступа @${server.login} отключён.`,
+              inFlightText: `Обновляем PDA и отключаем сервер @${server.login}...`,
+            });
+          } catch {
+            // Сообщение уже показано в статусе.
+          }
+        };
+
+        const askFinal = (noteText = '') => {
+          confirmModal?.open({
+            title: isLast ? 'Последний сервер доступа' : 'Отключить сервер доступа?',
+            text: isLast
+              ? 'Это последний сервер доступа пользователя. Если его отключить, личная переписка пользователя на серверах доступа будет удалена.'
+              : `Хотите изменить запись в блокчейне Solana и отключить сервер доступа @${server.login}?`,
+            note: noteText,
+            confirmLabel: isLast ? 'Понимаю' : 'Да',
+            cancelLabel: isLast ? 'Отмена' : 'Нет',
+            onConfirm: performDisable,
+          });
+        };
+
+        if (isLast) {
+          confirmModal?.open({
+            title: 'Отключить последний сервер?',
+            text: `У пользователя остался только один сервер доступа: @${server.login}.`,
+            note: 'После отключения последнего сервера доступа личная переписка пользователя на серверах доступа будет удалена.',
+            confirmLabel: 'Продолжить',
+            cancelLabel: 'Отмена',
+            onConfirm: () => askFinal('Это повторное предупреждение перед записью нового списка серверов в Solana PDA.'),
+          });
+          return;
+        }
+
+        askFinal();
+      });
+      listBody.append(button);
+      if (index < currentAccessServers.length - 1) {
+        const divider = document.createElement('div');
+        divider.style.height = '1px';
+        divider.style.background = 'rgba(255,255,255,0.08)';
+        listBody.append(divider);
+      }
+    });
+  };
+
+  const loadCurrentServers = async () => {
+    if (!sessionLogin) {
+      currentAccessServers = [];
+      renderServerList();
+      listStatus.textContent = 'Нет активной пользовательской сессии.';
+      return;
+    }
+    if (!solanaEndpoint) {
+      currentAccessServers = [];
+      renderServerList();
+      listStatus.textContent = 'Не задан Solana RPC endpoint.';
+      return;
+    }
+
+    listStatus.textContent = 'Читаем серверы доступа из Solana PDA...';
+    try {
+      const parsed = await readShineUserPda({ login: sessionLogin, solanaEndpoint });
+      const logins = uniqueLogins(parsed?.accessServers);
+      const rows = [];
+      for (const login of logins) {
+        try {
+          const resolved = await resolveShineServerByServerLogin({ serverLogin: login, solanaEndpoint });
+          rows.push({ login: resolved.serverLogin, url: resolved.httpBase });
+        } catch {
+          rows.push({ login, url: '' });
+        }
+      }
+      currentAccessServers = rows;
+      renderServerList();
+      listStatus.textContent = rows.length
+        ? `Найдено серверов доступа: ${rows.length}`
+        : 'В PDA пользователя пока нет серверов доступа.';
+    } catch (error) {
+      currentAccessServers = [];
+      renderServerList();
+      listStatus.textContent = error?.message || 'Не удалось прочитать список серверов доступа.';
+    }
+  };
+
+  const renderSuggestions = (items) => {
+    suggestEl.innerHTML = '';
+    if (!items.length) {
+      suggestEl.hidden = true;
+      return;
+    }
+    suggestEl.hidden = false;
+    suggestEl.innerHTML = items.map((item) => (
+      `<button type="button" class="profile-relative-suggest-item" data-login="${escapeHtml(item.login)}" data-url="${escapeHtml(item.url || '')}">
+        @${escapeHtml(item.login)}
+        <span class="meta-muted" style="display:block; margin-top:0.2rem;">${escapeHtml(item.url || 'URL не указан')}</span>
+      </button>`
+    )).join('');
+  };
+
+  const showTopupRequiredStatus = (target, clientAddress) => {
+    const address = String(clientAddress || '').trim();
+    const topupUrl = address ? getTopupSiteUrl(address) : '/devnet-topup';
+    target.innerHTML = `
+      <span style="display:block; margin-bottom:0.55rem;">
+        Не хватает SOL на client key для оплаты Solana rent/fee при обновлении user PDA.
+      </span>
+      ${address ? `<span style="display:block; overflow-wrap:anywhere; margin-bottom:0.55rem;">Кошелёк: ${escapeHtml(address)}</span>` : ''}
+      <a class="primary-btn" href="${escapeHtml(topupUrl)}" target="_blank" rel="noopener" style="display:inline-flex; text-decoration:none;">Пополнить DEVNET кошелёк</a>
+    `;
+  };
+
+  const loadSuggestions = async () => {
+    const prefix = normalizeLogin(addInput.value);
+    if (suggestionsLoading || prefix.length < 2 || operationBusy) {
+      suggestEl.hidden = true;
+      suggestEl.innerHTML = '';
+      return;
+    }
+    suggestionsLoading = true;
+    try {
+      const logins = await authService.searchUsers(prefix, { isServer: true });
+      const items = [];
+      for (const login of logins.slice(0, 6)) {
+        try {
+          const resolved = await resolveShineServerByServerLogin({ serverLogin: login, solanaEndpoint });
+          items.push({ login: resolved.serverLogin, url: resolved.httpBase });
+        } catch {
+          // Если server PDA повреждена, не показываем подсказку.
+        }
+      }
+      if (!disposed) renderSuggestions(items);
+    } catch (error) {
+      if (!disposed) {
+        suggestEl.hidden = true;
+        suggestEl.innerHTML = '';
+        addStatus.textContent = error?.message || 'Не удалось получить список серверов.';
+      }
+    } finally {
+      suggestionsLoading = false;
+    }
+  };
+
+  const resolveAccessServerSigningMaterial = async (currentPda) => {
+    if (!sessionLogin) throw new Error('Нет активной пользовательской сессии.');
+    if (!storagePwd) throw new Error('В памяти сессии нет storagePwd. Выполните вход заново.');
+
+    let saved = null;
+    try {
+      saved = await loadEncryptedUserSecrets(sessionLogin, storagePwd);
+    } catch {
+      saved = null;
+    }
+
+    const savedRoot = String(saved?.rootKey || '').trim();
+    const savedClient = String(saved?.clientKey || '').trim();
+    if (savedRoot && savedClient) {
+      return {
+        rootPrivatePkcs8B64: savedRoot,
+        clientPrivatePkcs8B64: savedClient,
+        clientAddress: await clientAddressFromPrivatePkcs8(savedClient),
+      };
+    }
+
+    const passwordResult = await passwordModal?.open({
+      title: 'Нужен пароль для обновления серверов доступа',
+      text: 'Чтобы изменить список серверов доступа, нужно подписать обновление user PDA через root key. Этот ключ не найден в локальном зашифрованном контейнере устройства.',
+      note: savedClient
+        ? 'client key уже сохранён на устройстве. Из пароля будет восстановлен только root key.'
+        : 'На устройстве не хватает root key и/или client key. Они будут восстановлены из пароля аккаунта.',
+    });
+    if (!passwordResult) {
+      throw new Error('Операция отменена пользователем.');
+    }
+
+    const keyBundle = await authService.derivePasswordKeyBundle(sessionLogin, passwordResult.password);
+    const derivedRootPublic = base64ToBytes(keyBundle.rootPair.publicKeyB64);
+    const derivedClientPublic = base64ToBytes(keyBundle.clientPair.publicKeyB64);
+    if (!equalBytes(derivedRootPublic, currentPda.rootKey)) {
+      throw new Error('Пароль не подходит: root key не совпал с user PDA.');
+    }
+    if (!equalBytes(derivedClientPublic, currentPda.clientKey)) {
+      throw new Error('Пароль не подходит: client key не совпал с user PDA.');
+    }
+
+    if (passwordResult.saveRoot) {
+      await authService.persistSelectedKeys(sessionLogin, storagePwd, keyBundle, {
+        saveRoot: true,
+        saveBlockchain: false,
+      });
+    }
+
+    return {
+      rootPrivatePkcs8B64: keyBundle.rootPair.privatePkcs8B64,
+      clientPrivatePkcs8B64: keyBundle.clientPair.privatePkcs8B64,
+      clientAddress: clientAddressFromPublicB64(keyBundle.clientPair.publicKeyB64),
+    };
+  };
+
+  const updateAccessServers = async (nextLogins, {
+    statusTarget,
+    successText,
+    inFlightText,
+  } = {}) => {
+    const target = statusTarget instanceof HTMLElement ? statusTarget : listStatus;
+    if (!sessionLogin) throw new Error('Нет активной пользовательской сессии.');
+    if (!solanaEndpoint) throw new Error('Не задан Solana RPC endpoint.');
+    if (operationBusy) return;
+
+    const normalizedList = uniqueLogins(nextLogins);
+    setOperationBusy(true);
+    target.textContent = String(inFlightText || 'Обновляем список серверов доступа...');
+    let signingMaterial = null;
+    try {
+      const currentPda = await readShineUserPda({ login: sessionLogin, solanaEndpoint });
+      signingMaterial = await resolveAccessServerSigningMaterial(currentPda);
+      const tx = await updateShineUserPdaOnSolana({
+        login: sessionLogin,
+        solanaEndpoint,
+        rootPrivatePkcs8B64: signingMaterial.rootPrivatePkcs8B64,
+        clientPrivatePkcs8B64: signingMaterial.clientPrivatePkcs8B64,
+        accessServers: normalizedList,
+      });
+      await loadCurrentServers();
+      target.textContent = `${String(successText || 'Список серверов доступа обновлён.')} Tx: ${shortenSignature(tx?.signature)}`;
+      setSelectedCandidate(null);
+      suggestEl.hidden = true;
+      suggestEl.innerHTML = '';
+      refreshAddButton();
+    } catch (error) {
+      if (isInsufficientFundsForRentError(error)) {
+        showTopupRequiredStatus(target, signingMaterial?.clientAddress);
+      } else {
+        target.textContent = error?.message || 'Не удалось обновить список серверов доступа.';
+      }
+      throw error;
+    } finally {
+      setOperationBusy(false);
+    }
+  };
+
+  addInput.addEventListener('input', () => {
+    setSelectedCandidate(null);
+    refreshAddButton();
+    void loadSuggestions();
+  });
+  addInput.addEventListener('focus', () => {
+    void loadSuggestions();
+  });
+  suggestEl.addEventListener('click', (event) => {
+    const target = event.target instanceof HTMLElement ? event.target.closest('[data-login]') : null;
+    if (!(target instanceof HTMLElement)) return;
+    setSelectedCandidate({
+      login: String(target.dataset.login || ''),
+      url: String(target.dataset.url || ''),
+    });
+    suggestEl.hidden = true;
+    suggestEl.innerHTML = '';
+  });
+
+  addButton.addEventListener('click', async () => {
+    if (operationBusy) return;
+    const login = normalizeLogin(selectedCandidate?.login || addInput.value);
+    if (!login) {
+      setSelectedCandidate(null);
+      addStatus.textContent = 'Сначала укажите логин сервера доступа.';
+      return;
+    }
+    if (currentAccessServers.some((item) => item.login === login)) {
+      addStatus.textContent = `Сервер @${login} уже есть в списке.`;
+      return;
+    }
+
+    try {
+      const resolved = await resolveShineServerByServerLogin({ serverLogin: login, solanaEndpoint });
+      confirmModal?.open({
+        title: 'Добавить сервер доступа?',
+        text: `Вы хотите добавить сервер доступа @${resolved.serverLogin}?`,
+        note: resolved.httpBase
+          ? `Адрес сервера: ${resolved.httpBase}\nИзменение будет записано в Solana user PDA.`
+          : 'Изменение будет записано в Solana user PDA.',
+        onConfirm: async () => {
+          const nextList = uniqueLogins([...currentAccessServers.map((item) => item.login), resolved.serverLogin]);
+          try {
+            await updateAccessServers(nextList, {
+              statusTarget: addStatus,
+              successText: `Сервер доступа @${resolved.serverLogin} добавлен.`,
+              inFlightText: `Обновляем PDA и добавляем сервер @${resolved.serverLogin}...`,
+            });
+          } catch {
+            // Сообщение уже показано в статусе.
+          }
+        },
+      });
+    } catch (error) {
+      addStatus.textContent = error?.message || 'Не удалось проверить выбранный сервер.';
+    }
+  });
+
+  screen.append(
+    renderHeader({
+      title: 'Серверы доступа',
+      leftAction: { label: '←', onClick: () => navigate('settings-view') },
+    }),
+    introCard,
+    listCard,
+    addCard,
+  );
+
+  void loadCurrentServers();
+
+  screen.cleanup = () => {
+    disposed = true;
+    confirmModal?.destroy();
+    passwordModal?.destroy();
+  };
+
+  return screen;
+}

shine-UI/js/pages/server-settings-view.js

@@ -2,7 +2,7 @@ import { renderHeader } from '../components/header.js';
 import { saveEntrySettings, state } from '../state.js';
 import { checkServerAvailabilityByKey, resolveAndCheckShineServerLogin } from '../services/server-health-service.js';
 
-export const pageMeta = { id: 'server-settings-view', title: 'Настройки серверов' };
+export const pageMeta = { id: 'server-settings-view', title: 'Серверы блокчейнов' };
 
 const SERVER_FIELDS = [
   { key: 'solanaServer', label: 'Адрес Solana сервера' },
@@ -26,6 +26,16 @@ export function render({ navigate }) {
 
   const timers = new Map();
 
+  const introCard = document.createElement('div');
+  introCard.className = 'card stack';
+  introCard.innerHTML = `
+    <p class="field-label">Серверы блокчейнов и публичных данных</p>
+    <p class="meta-muted">
+      Здесь настраиваются Solana, SHiNE и Arweave для чтения публичных данных и доступа к блокчейну.
+      Эти настройки не меняют список личных серверов доступа пользователя.
+    </p>
+  `;
+
   const body = document.createElement('div');
   body.className = 'card stack';
 
@@ -168,7 +178,7 @@ export function render({ navigate }) {
       await saveEntrySettings(draft);
       navigate('settings-view');
     } catch (error) {
-      window.alert(error?.message || 'Не удалось сохранить настройки серверов.');
+      window.alert(error?.message || 'Не удалось сохранить настройки серверов блокчейнов.');
     }
   });
 
@@ -186,9 +196,10 @@ export function render({ navigate }) {
 
   screen.append(
     renderHeader({
-      title: 'Настройки серверов',
+      title: 'Серверы блокчейнов',
       leftAction: { label: '←', onClick: () => navigate('settings-view') },
     }),
+    introCard,
     body,
     actions,
     help,

shine-UI/js/pages/settings-view.js

@@ -42,14 +42,26 @@ export function render({ navigate }) {
   card.innerHTML = `
     <button class="text-btn" type="button" id="settings-device">Устройства</button>
     <button class="text-btn" type="button" id="settings-remote-addblock">Remote AddBlock через homeserver</button>
-    <button class="text-btn" type="button" id="settings-servers">Настройки серверов</button>
+    <button class="text-btn" type="button" id="settings-access-servers">
+      <span style="display:block; text-align:left;">
+        <strong>Серверы доступа</strong>
+        <span class="meta-muted" style="display:block; margin-top:0.2rem;">Личная переписка, звонки и зашифрованные данные</span>
+      </span>
+    </button>
+    <button class="text-btn" type="button" id="settings-blockchain-servers">
+      <span style="display:block; text-align:left;">
+        <strong>Серверы блокчейнов</strong>
+        <span class="meta-muted" style="display:block; margin-top:0.2rem;">Solana, SHiNE и Arweave для публичных данных</span>
+      </span>
+    </button>
     <button class="text-btn" type="button" id="settings-language">Язык / Language</button>
     <button class="text-btn" type="button" id="settings-signout">Завершить текущий сеанс</button>
   `;
 
   card.querySelector('#settings-device').addEventListener('click', () => navigate('device-view'));
   card.querySelector('#settings-remote-addblock').addEventListener('click', () => navigate('remote-addblock-session-view'));
-  card.querySelector('#settings-servers').addEventListener('click', () => navigate('server-settings-view'));
+  card.querySelector('#settings-access-servers').addEventListener('click', () => navigate('access-servers-view'));
+  card.querySelector('#settings-blockchain-servers').addEventListener('click', () => navigate('server-settings-view'));
   card.querySelector('#settings-language').addEventListener('click', () => navigate('language-view'));
 
   const signOutBtn = card.querySelector('#settings-signout');

shine-UI/js/router.js

@@ -29,6 +29,7 @@ const PRETTY_PATHS = new Map([
   ['network-view', 'network'],
   ['notifications-view', 'notifications'],
   ['settings-view', 'settings'],
+  ['access-servers-view', 'settings/access-servers'],
   ['server-settings-view', 'settings/servers'],
   ['developer-settings-view', 'settings/developer'],
   ['trusted-device-login-settings-view', 'settings/device-login'],
@@ -258,6 +259,7 @@ export function getRoute() {
 
   if (pageId === 'settings') {
     const sub = decodePart(segments[1] || '').toLowerCase();
+    if (sub === 'access-servers') return { pageId: 'access-servers-view', params: {} };
     if (sub === 'servers') return { pageId: 'server-settings-view', params: {} };
     if (sub === 'developer') return { pageId: 'developer-settings-view', params: {} };
     if (sub === 'device-login') return { pageId: 'trusted-device-login-settings-view', params: {} };
@@ -368,6 +370,7 @@ export function resolveToolbarActive(pageId) {
     pageId === 'profile-edit-view' ||
     pageId === 'wallet-view' ||
     pageId === 'settings-view' ||
+    pageId === 'access-servers-view' ||
     pageId === 'developer-settings-view' ||
     pageId === 'server-settings-view' ||
     pageId === 'remote-addblock-session-view' ||

shine-UI/js/services/auth-service.js

@@ -2603,8 +2603,12 @@ export class AuthService {
     return response.payload || {};
   }
 
-  async searchUsers(prefix) {
+  async searchUsers(prefix, options = {}) {
-    const response = await this.ws.request('SearchUsers', { prefix });
+    const payload = { prefix };
+    if (typeof options?.isServer === 'boolean') {
+      payload.isServer = options.isServer;
+    }
+    const response = await this.ws.request('SearchUsers', payload);
     if (response.status !== 200) throw opError('SearchUsers', response);
     return response.payload?.logins || [];
   }