Добавили счётчик подписчиков в каналах и подписки пользователя

Репликация личных сообщений между серверами теперь работает корректно.

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

@@ -30,6 +30,8 @@ public final class DatabaseInitializer {
     public static final int SCHEMA_VERSION_11 = 11;
     public static final int SCHEMA_VERSION_12 = 12;
     public static final int SCHEMA_VERSION_13 = 13;
+    public static final int SCHEMA_VERSION_14 = 14;
+    public static final int SCHEMA_VERSION_15 = 15;
     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";
@@ -43,6 +45,8 @@ public final class DatabaseInitializer {
     public static final String POSTGRES_MIGRATION_V11_RESOURCE = "postgres/migration_v11.sql";
     public static final String POSTGRES_MIGRATION_V12_RESOURCE = "postgres/migration_v12.sql";
     public static final String POSTGRES_MIGRATION_V13_RESOURCE = "postgres/migration_v13.sql";
+    public static final String POSTGRES_MIGRATION_V14_RESOURCE = "postgres/migration_v14.sql";
+    public static final String POSTGRES_MIGRATION_V15_RESOURCE = "postgres/migration_v15.sql";
 
     private DatabaseInitializer() {}
 
@@ -154,6 +158,14 @@ public final class DatabaseInitializer {
                 runSqlScript(conn, POSTGRES_MIGRATION_V13_RESOURCE);
                 currentVersion = SCHEMA_VERSION_13;
             }
+            if (currentVersion < SCHEMA_VERSION_14) {
+                runSqlScript(conn, POSTGRES_MIGRATION_V14_RESOURCE);
+                currentVersion = SCHEMA_VERSION_14;
+            }
+            if (currentVersion < SCHEMA_VERSION_15) {
+                runSqlScript(conn, POSTGRES_MIGRATION_V15_RESOURCE);
+                currentVersion = SCHEMA_VERSION_15;
+            }
         }
     }
 

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

@@ -99,6 +99,8 @@ public final class BlockchainResyncCleanupDAO {
                 int deletedBlocks = deleteBlocksForChain(c, blockchainName);
                 int deletedBlockchainState = deleteBlockchainStateForChain(c, blockchainName);
 
+                rebuildStatsState(c);
+
                 c.commit();
 
                 return new CleanupResult(
@@ -366,6 +368,100 @@ public final class BlockchainResyncCleanupDAO {
             """, blockchainName);
     }
 
+    private void rebuildStatsState(Connection c) throws SQLException {
+        try (PreparedStatement truncate = c.prepareStatement("""
+            TRUNCATE TABLE user_stats_state, channel_stats_state
+            """)) {
+            truncate.executeUpdate();
+        }
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+            )
+            SELECT
+                u.login,
+                COALESCE(own.owned_public_channels_count, 0),
+                COALESCE(fu.following_users_count, 0),
+                COALESCE(fc.following_channels_count, 0),
+                COALESCE(cf.close_friends_count, 0),
+                CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+            FROM solana_user_pda_current u
+            LEFT JOIN (
+                SELECT owner_login, COUNT(*)::INTEGER AS owned_public_channels_count
+                FROM channel_names_state
+                WHERE channel_type_code = 1
+                GROUP BY owner_login
+            ) own ON LOWER(own.owner_login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT login, COUNT(*)::INTEGER AS following_users_count
+                FROM connections_state
+                WHERE rel_type = 30
+                  AND to_block_number = 0
+                GROUP BY login
+            ) fu ON LOWER(fu.login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT cs.login, COUNT(*)::INTEGER AS following_channels_count
+                FROM connections_state cs
+                JOIN channel_names_state cn
+                  ON cn.owner_bch_name = cs.to_bch_name
+                 AND cn.channel_root_block_number = cs.to_block_number
+                 AND cn.channel_root_block_hash = cs.to_block_hash
+                WHERE cs.rel_type = 30
+                  AND cn.channel_type_code = 1
+                GROUP BY cs.login
+            ) fc ON LOWER(fc.login) = LOWER(u.login)
+            LEFT JOIN (
+                SELECT login, COUNT(*)::INTEGER AS close_friends_count
+                FROM connections_state
+                WHERE rel_type = 10
+                GROUP BY login
+            ) cf ON LOWER(cf.login) = LOWER(u.login)
+            """)) {
+            ps.executeUpdate();
+        }
+
+        try (PreparedStatement ps = c.prepareStatement("""
+            INSERT INTO channel_stats_state (
+                owner_bch_name,
+                channel_root_block_number,
+                channel_root_block_hash,
+                owner_login,
+                channel_type_code,
+                subscribers_count,
+                updated_at_ms
+            )
+            SELECT
+                cn.owner_bch_name,
+                cn.channel_root_block_number,
+                cn.channel_root_block_hash,
+                cn.owner_login,
+                cn.channel_type_code,
+                COUNT(DISTINCT cs.login)::INTEGER AS subscribers_count,
+                CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+            FROM channel_names_state cn
+            LEFT JOIN connections_state cs
+              ON cs.rel_type = 30
+             AND cs.to_bch_name = cn.owner_bch_name
+             AND cs.to_block_number = cn.channel_root_block_number
+             AND cs.to_block_hash = cn.channel_root_block_hash
+            WHERE cn.channel_type_code = 1
+            GROUP BY
+                cn.owner_bch_name,
+                cn.channel_root_block_number,
+                cn.channel_root_block_hash,
+                cn.owner_login,
+                cn.channel_type_code
+            """)) {
+            ps.executeUpdate();
+        }
+    }
+
     private int executeDelete(Connection c, String sql, String value) throws SQLException {
         try (PreparedStatement ps = c.prepareStatement(sql)) {
             ps.setString(1, value);

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

@@ -75,6 +75,35 @@ public final class UserAccessServersCurrentDAO {
         return result;
     }
 
+    /**
+     * Возвращает уникальные физические серверы из текущей routing-проекции.
+     * Используется транспортным пулом: одно WSS-соединение держится на сервер,
+     * а не на каждого пользователя этого сервера.
+     */
+    public List<UserAccessServerRouteEntry> listDistinctServers() throws SQLException {
+        String sql = """
+            SELECT DISTINCT ON (LOWER(server_login))
+                   server_login, server_url
+            FROM user_access_servers_current
+            WHERE server_login IS NOT NULL AND BTRIM(server_login) <> ''
+              AND server_url IS NOT NULL AND BTRIM(server_url) <> ''
+            ORDER BY LOWER(server_login), server_login, server_url
+            """;
+        List<UserAccessServerRouteEntry> result = new ArrayList<>();
+        try (Connection c = db.getConnection();
+             PreparedStatement ps = c.prepareStatement(sql);
+             ResultSet rs = ps.executeQuery()) {
+            while (rs.next()) {
+                UserAccessServerRouteEntry entry = new UserAccessServerRouteEntry();
+                entry.setUserLogin("");
+                entry.setServerLogin(rs.getString("server_login"));
+                entry.setServerUrl(rs.getString("server_url"));
+                result.add(entry);
+            }
+        }
+        return result;
+    }
+
     private UserAccessServerRouteEntry mapRow(ResultSet rs) throws SQLException {
         UserAccessServerRouteEntry entry = new UserAccessServerRouteEntry();
         entry.setUserLogin(rs.getString("user_login"));

SHiNE-server/shine-server-db/src/main/resources/postgres/migration_v14.sql

@@ -0,0 +1,620 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS user_stats_state (
+    login                       TEXT PRIMARY KEY REFERENCES solana_user_pda_current(login) ON DELETE CASCADE,
+    owned_public_channels_count INTEGER NOT NULL DEFAULT 0 CHECK (owned_public_channels_count >= 0),
+    following_users_count       INTEGER NOT NULL DEFAULT 0 CHECK (following_users_count >= 0),
+    following_channels_count    INTEGER NOT NULL DEFAULT 0 CHECK (following_channels_count >= 0),
+    close_friends_count         INTEGER NOT NULL DEFAULT 0 CHECK (close_friends_count >= 0),
+    updated_at_ms               BIGINT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_stats_state_following_users_count
+    ON user_stats_state (following_users_count);
+
+CREATE TABLE IF NOT EXISTS channel_stats_state (
+    owner_bch_name            TEXT NOT NULL,
+    channel_root_block_number INTEGER NOT NULL CHECK (channel_root_block_number >= 0),
+    channel_root_block_hash   BYTEA NOT NULL,
+    owner_login               TEXT NOT NULL,
+    channel_type_code         INTEGER NOT NULL DEFAULT 1,
+    subscribers_count         INTEGER NOT NULL DEFAULT 0 CHECK (subscribers_count >= 0),
+    updated_at_ms             BIGINT NOT NULL,
+    PRIMARY KEY (owner_bch_name, channel_root_block_number, channel_root_block_hash)
+);
+
+CREATE INDEX IF NOT EXISTS idx_channel_stats_state_owner_login
+    ON channel_stats_state (owner_login);
+
+CREATE OR REPLACE FUNCTION shine_user_stats_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    INSERT INTO user_stats_state (
+        login,
+        owned_public_channels_count,
+        following_users_count,
+        following_channels_count,
+        close_friends_count,
+        updated_at_ms
+    ) VALUES (
+        NEW.login,
+        0,
+        0,
+        0,
+        0,
+        now_ms
+    )
+    ON CONFLICT (login) DO NOTHING;
+
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+    public_subscribers_count INTEGER;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    IF NEW.owner_login IS NULL OR btrim(NEW.owner_login) = '' THEN
+        RETURN NEW;
+    END IF;
+
+    IF NEW.channel_type_code = 1 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_login,
+            1,
+            0,
+            0,
+            0,
+            now_ms
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            owned_public_channels_count = user_stats_state.owned_public_channels_count + 1,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+
+        SELECT COUNT(*)::INTEGER
+        INTO public_subscribers_count
+        FROM connections_state cs
+        JOIN channel_names_state cn
+          ON cn.owner_bch_name = cs.to_bch_name
+         AND cn.channel_root_block_number = cs.to_block_number
+         AND cn.channel_root_block_hash = cs.to_block_hash
+        WHERE cs.rel_type = 30
+          AND cn.owner_bch_name = NEW.owner_bch_name
+          AND cn.channel_root_block_number = NEW.channel_root_block_number
+          AND cn.channel_root_block_hash = NEW.channel_root_block_hash
+          AND cn.channel_type_code = 1;
+
+        INSERT INTO channel_stats_state (
+            owner_bch_name,
+            channel_root_block_number,
+            channel_root_block_hash,
+            owner_login,
+            channel_type_code,
+            subscribers_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_bch_name,
+            NEW.channel_root_block_number,
+            NEW.channel_root_block_hash,
+            NEW.owner_login,
+            NEW.channel_type_code,
+            COALESCE(public_subscribers_count, 0),
+            now_ms
+        )
+        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+            owner_login = EXCLUDED.owner_login,
+            channel_type_code = EXCLUDED.channel_type_code,
+            subscribers_count = EXCLUDED.subscribers_count,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSE
+        WITH pending AS (
+            SELECT cs.login, COUNT(*)::INTEGER AS cnt
+            FROM connections_state cs
+            WHERE cs.rel_type = 30
+              AND cs.to_bch_name = NEW.owner_bch_name
+              AND cs.to_block_number = NEW.channel_root_block_number
+              AND cs.to_block_hash = NEW.channel_root_block_hash
+            GROUP BY cs.login
+        )
+        UPDATE user_stats_state us
+        SET following_channels_count = GREATEST(0, us.following_channels_count - pending.cnt),
+            updated_at_ms = now_ms
+        FROM pending
+        WHERE us.login = pending.login;
+    END IF;
+
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_blocks_connection_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    resolved_login TEXT;
+    positive_rel_type INTEGER;
+    existed_before BOOLEAN;
+    target_channel_type INTEGER;
+BEGIN
+    IF NEW.msg_type <> 3 THEN
+        RETURN NEW;
+    END IF;
+
+    resolved_login := shine_resolve_login(NEW.to_login, NEW.to_bch_name);
+
+    IF NEW.msg_sub_type IN (10, 20, 30, 40, 50, 52, 54, 60, 70, 74) THEN
+        IF resolved_login IS NULL OR NEW.to_bch_name IS NULL THEN
+            RETURN NEW;
+        END IF;
+
+        SELECT EXISTS (
+            SELECT 1
+            FROM connections_state
+            WHERE login = NEW.login
+              AND rel_type = NEW.msg_sub_type
+              AND to_login = resolved_login
+              AND to_bch_name = NEW.to_bch_name
+              AND to_block_number = COALESCE(NEW.to_block_number, 0)
+              AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        )
+        INTO existed_before;
+
+        IF NOT existed_before THEN
+            IF NEW.msg_sub_type = 10 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    1,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    close_friends_count = user_stats_state.close_friends_count + 1,
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF NEW.msg_sub_type = 30 THEN
+                IF NEW.to_block_number IS NULL THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        0,
+                        1,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_channels_count = user_stats_state.following_channels_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSIF NEW.to_block_number = 0 THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        1,
+                        0,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_users_count = user_stats_state.following_users_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSE
+                    SELECT cn.channel_type_code
+                    INTO target_channel_type
+                    FROM channel_names_state cn
+                    WHERE cn.owner_bch_name = NEW.to_bch_name
+                      AND cn.channel_root_block_number = NEW.to_block_number
+                      AND cn.channel_root_block_hash = NEW.to_block_hash
+                    LIMIT 1;
+
+                    IF target_channel_type = 1 THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+
+                        INSERT INTO channel_stats_state (
+                            owner_bch_name,
+                            channel_root_block_number,
+                            channel_root_block_hash,
+                            owner_login,
+                            channel_type_code,
+                            subscribers_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.to_bch_name,
+                            NEW.to_block_number,
+                            NEW.to_block_hash,
+                            resolved_login,
+                            target_channel_type,
+                            1,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                            owner_login = EXCLUDED.owner_login,
+                            channel_type_code = EXCLUDED.channel_type_code,
+                            subscribers_count = channel_stats_state.subscribers_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    ELSIF target_channel_type IS NULL THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    END IF;
+                END IF;
+            END IF;
+        END IF;
+
+        DELETE FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = NEW.msg_sub_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+        INSERT INTO connections_state (
+            login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash
+        ) VALUES (
+            NEW.login,
+            NEW.msg_sub_type,
+            resolved_login,
+            NEW.to_bch_name,
+            COALESCE(NEW.to_block_number, 0),
+            COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        );
+
+        RETURN NEW;
+    END IF;
+
+    positive_rel_type := CASE NEW.msg_sub_type
+        WHEN 11 THEN 10
+        WHEN 21 THEN 20
+        WHEN 31 THEN 30
+        WHEN 41 THEN 40
+        WHEN 51 THEN 50
+        WHEN 53 THEN 52
+        WHEN 55 THEN 54
+        WHEN 61 THEN 60
+        WHEN 71 THEN 70
+        WHEN 75 THEN 74
+        ELSE NULL
+    END;
+
+    IF positive_rel_type IS NULL OR resolved_login IS NULL THEN
+        RETURN NEW;
+    END IF;
+
+    SELECT EXISTS (
+        SELECT 1
+        FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = positive_rel_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+    )
+    INTO existed_before;
+
+    IF NOT existed_before THEN
+        RETURN NEW;
+    END IF;
+
+    IF positive_rel_type = 10 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            close_friends_count = GREATEST(0, user_stats_state.close_friends_count - 1),
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSIF positive_rel_type = 30 THEN
+        IF NEW.to_block_number IS NULL THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSIF NEW.to_block_number = 0 THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_users_count = GREATEST(0, user_stats_state.following_users_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSE
+            SELECT cn.channel_type_code
+            INTO target_channel_type
+            FROM channel_names_state cn
+            WHERE cn.owner_bch_name = NEW.to_bch_name
+              AND cn.channel_root_block_number = NEW.to_block_number
+              AND cn.channel_root_block_hash = NEW.to_block_hash
+            LIMIT 1;
+
+            IF target_channel_type = 1 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+
+                INSERT INTO channel_stats_state (
+                    owner_bch_name,
+                    channel_root_block_number,
+                    channel_root_block_hash,
+                    owner_login,
+                    channel_type_code,
+                    subscribers_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.to_bch_name,
+                    NEW.to_block_number,
+                    NEW.to_block_hash,
+                    resolved_login,
+                    target_channel_type,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                    owner_login = EXCLUDED.owner_login,
+                    channel_type_code = EXCLUDED.channel_type_code,
+                    subscribers_count = GREATEST(0, channel_stats_state.subscribers_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF target_channel_type IS NULL THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            END IF;
+        END IF;
+    END IF;
+
+    DELETE FROM connections_state
+    WHERE login = NEW.login
+      AND rel_type = positive_rel_type
+      AND to_login = resolved_login
+      AND to_bch_name = NEW.to_bch_name
+      AND to_block_number = COALESCE(NEW.to_block_number, 0)
+      AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
+
+    RETURN NEW;
+END;
+$$;
+
+DROP TRIGGER IF EXISTS trg_user_stats_state_ai ON solana_user_pda_current;
+CREATE TRIGGER trg_user_stats_state_ai
+AFTER INSERT ON solana_user_pda_current
+FOR EACH ROW
+EXECUTE FUNCTION shine_user_stats_state_ai();
+
+DROP TRIGGER IF EXISTS trg_channel_names_state_stats_ai ON channel_names_state;
+CREATE TRIGGER trg_channel_names_state_stats_ai
+AFTER INSERT ON channel_names_state
+FOR EACH ROW
+EXECUTE FUNCTION shine_channel_names_state_stats_ai();
+
+DROP TRIGGER IF EXISTS trg_blocks_connection_state_ai ON blocks;
+CREATE TRIGGER trg_blocks_connection_state_ai
+AFTER INSERT ON blocks
+FOR EACH ROW
+EXECUTE FUNCTION shine_blocks_connection_state_ai();
+
+TRUNCATE TABLE user_stats_state, channel_stats_state;
+
+INSERT INTO user_stats_state (
+    login,
+    owned_public_channels_count,
+    following_users_count,
+    following_channels_count,
+    close_friends_count,
+    updated_at_ms
+)
+SELECT
+    u.login,
+    COALESCE(own.owned_public_channels_count, 0) AS owned_public_channels_count,
+    COALESCE(fu.following_users_count, 0) AS following_users_count,
+    COALESCE(fc.following_channels_count, 0) AS following_channels_count,
+    COALESCE(cf.close_friends_count, 0) AS close_friends_count,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) AS updated_at_ms
+FROM solana_user_pda_current u
+LEFT JOIN (
+    SELECT owner_login, COUNT(*)::INTEGER AS owned_public_channels_count
+    FROM channel_names_state
+    WHERE channel_type_code = 1
+    GROUP BY owner_login
+) own ON LOWER(own.owner_login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT login, COUNT(*)::INTEGER AS following_users_count
+    FROM connections_state
+    WHERE rel_type = 30
+      AND to_block_number = 0
+    GROUP BY login
+) fu ON LOWER(fu.login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT cs.login, COUNT(*)::INTEGER AS following_channels_count
+    FROM connections_state cs
+    JOIN channel_names_state cn
+      ON cn.owner_bch_name = cs.to_bch_name
+     AND cn.channel_root_block_number = cs.to_block_number
+     AND cn.channel_root_block_hash = cs.to_block_hash
+    WHERE cs.rel_type = 30
+      AND cn.channel_type_code = 1
+    GROUP BY cs.login
+) fc ON LOWER(fc.login) = LOWER(u.login)
+LEFT JOIN (
+    SELECT login, COUNT(*)::INTEGER AS close_friends_count
+    FROM connections_state
+    WHERE rel_type = 10
+    GROUP BY login
+) cf ON LOWER(cf.login) = LOWER(u.login);
+
+INSERT INTO channel_stats_state (
+    owner_bch_name,
+    channel_root_block_number,
+    channel_root_block_hash,
+    owner_login,
+    channel_type_code,
+    subscribers_count,
+    updated_at_ms
+)
+SELECT
+    cn.owner_bch_name,
+    cn.channel_root_block_number,
+    cn.channel_root_block_hash,
+    cn.owner_login,
+    cn.channel_type_code,
+    COUNT(DISTINCT cs.login)::INTEGER AS subscribers_count,
+    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT) AS updated_at_ms
+FROM channel_names_state cn
+LEFT JOIN connections_state cs
+  ON cs.rel_type = 30
+ AND cs.to_bch_name = cn.owner_bch_name
+ AND cs.to_block_number = cn.channel_root_block_number
+ AND cs.to_block_hash = cn.channel_root_block_hash
+WHERE cn.channel_type_code = 1
+GROUP BY
+    cn.owner_bch_name,
+    cn.channel_root_block_number,
+    cn.channel_root_block_hash,
+    cn.owner_login,
+    cn.channel_type_code;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 14, 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/migration_v15.sql

@@ -0,0 +1,105 @@
+BEGIN;
+
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+    public_subscribers_count INTEGER;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    IF NEW.owner_login IS NULL OR btrim(NEW.owner_login) = '' THEN
+        RETURN NEW;
+    END IF;
+
+    IF NEW.channel_type_code = 1 THEN
+        IF EXISTS (
+            SELECT 1
+            FROM solana_user_pda_current su
+            WHERE su.login = NEW.owner_login
+        ) THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+            ) VALUES (
+                NEW.owner_login,
+                1,
+                0,
+                0,
+                0,
+                now_ms
+            )
+            ON CONFLICT (login) DO UPDATE SET
+                owned_public_channels_count = user_stats_state.owned_public_channels_count + 1,
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        END IF;
+
+        SELECT COUNT(*)::INTEGER
+        INTO public_subscribers_count
+        FROM connections_state cs
+        JOIN channel_names_state cn
+          ON cn.owner_bch_name = cs.to_bch_name
+         AND cn.channel_root_block_number = cs.to_block_number
+         AND cn.channel_root_block_hash = cs.to_block_hash
+        WHERE cs.rel_type = 30
+          AND cn.owner_bch_name = NEW.owner_bch_name
+          AND cn.channel_root_block_number = NEW.channel_root_block_number
+          AND cn.channel_root_block_hash = NEW.channel_root_block_hash
+          AND cn.channel_type_code = 1;
+
+        INSERT INTO channel_stats_state (
+            owner_bch_name,
+            channel_root_block_number,
+            channel_root_block_hash,
+            owner_login,
+            channel_type_code,
+            subscribers_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_bch_name,
+            NEW.channel_root_block_number,
+            NEW.channel_root_block_hash,
+            NEW.owner_login,
+            NEW.channel_type_code,
+            COALESCE(public_subscribers_count, 0),
+            now_ms
+        )
+        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+            owner_login = EXCLUDED.owner_login,
+            channel_type_code = EXCLUDED.channel_type_code,
+            subscribers_count = EXCLUDED.subscribers_count,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSE
+        WITH pending AS (
+            SELECT cs.login, COUNT(*)::INTEGER AS cnt
+            FROM connections_state cs
+            WHERE cs.rel_type = 30
+              AND cs.to_bch_name = NEW.owner_bch_name
+              AND cs.to_block_number = NEW.channel_root_block_number
+              AND cs.to_block_hash = NEW.channel_root_block_hash
+            GROUP BY cs.login
+        )
+        UPDATE user_stats_state us
+        SET following_channels_count = GREATEST(0, us.following_channels_count - pending.cnt),
+            updated_at_ms = now_ms
+        FROM pending
+        WHERE us.login = pending.login;
+    END IF;
+
+    RETURN NEW;
+END;
+$$;
+
+INSERT INTO db_schema_version (id, schema_version, updated_at_ms)
+VALUES (1, 15, 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

@@ -291,6 +291,12 @@ AFTER TRUNCATE ON solana_user_pda_current
 FOR EACH STATEMENT
 EXECUTE FUNCTION trg_refresh_user_access_servers_from_user_pda_truncate();
 
+DROP TRIGGER IF EXISTS trg_user_stats_state_ai ON solana_user_pda_current;
+CREATE TRIGGER trg_user_stats_state_ai
+AFTER INSERT ON solana_user_pda_current
+FOR EACH ROW
+EXECUTE FUNCTION shine_user_stats_state_ai();
+
 CREATE TABLE IF NOT EXISTS solana_user_pda_history (
     id                       BIGSERIAL PRIMARY KEY,
     tx_signature             TEXT NOT NULL,
@@ -605,6 +611,32 @@ CREATE UNIQUE INDEX IF NOT EXISTS uq_channel_names_state_target
 CREATE INDEX IF NOT EXISTS idx_channel_names_state_owner
     ON channel_names_state (owner_login, owner_bch_name);
 
+CREATE TABLE IF NOT EXISTS user_stats_state (
+    login                       TEXT PRIMARY KEY REFERENCES solana_user_pda_current(login) ON DELETE CASCADE,
+    owned_public_channels_count INTEGER NOT NULL DEFAULT 0 CHECK (owned_public_channels_count >= 0),
+    following_users_count       INTEGER NOT NULL DEFAULT 0 CHECK (following_users_count >= 0),
+    following_channels_count    INTEGER NOT NULL DEFAULT 0 CHECK (following_channels_count >= 0),
+    close_friends_count         INTEGER NOT NULL DEFAULT 0 CHECK (close_friends_count >= 0),
+    updated_at_ms               BIGINT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_stats_state_following_users_count
+    ON user_stats_state (following_users_count);
+
+CREATE TABLE IF NOT EXISTS channel_stats_state (
+    owner_bch_name            TEXT NOT NULL,
+    channel_root_block_number INTEGER NOT NULL CHECK (channel_root_block_number >= 0),
+    channel_root_block_hash   BYTEA NOT NULL,
+    owner_login               TEXT NOT NULL,
+    channel_type_code         INTEGER NOT NULL DEFAULT 1,
+    subscribers_count         INTEGER NOT NULL DEFAULT 0 CHECK (subscribers_count >= 0),
+    updated_at_ms             BIGINT NOT NULL,
+    PRIMARY KEY (owner_bch_name, channel_root_block_number, channel_root_block_hash)
+);
+
+CREATE INDEX IF NOT EXISTS idx_channel_stats_state_owner_login
+    ON channel_stats_state (owner_login);
+
 CREATE TABLE IF NOT EXISTS chat200_state (
     owner_login               TEXT NOT NULL,
     owner_bch_name            TEXT NOT NULL,
@@ -921,6 +953,132 @@ BEGIN
 END;
 $$;
 
+CREATE OR REPLACE FUNCTION shine_user_stats_state_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    INSERT INTO user_stats_state (
+        login,
+        owned_public_channels_count,
+        following_users_count,
+        following_channels_count,
+        close_friends_count,
+        updated_at_ms
+    ) VALUES (
+        NEW.login,
+        0,
+        0,
+        0,
+        0,
+        now_ms
+    )
+    ON CONFLICT (login) DO NOTHING;
+
+    RETURN NEW;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION shine_channel_names_state_stats_ai()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    now_ms BIGINT;
+    public_subscribers_count INTEGER;
+BEGIN
+    now_ms := CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT);
+
+    IF NEW.owner_login IS NULL OR btrim(NEW.owner_login) = '' THEN
+        RETURN NEW;
+    END IF;
+
+    IF NEW.channel_type_code = 1 THEN
+        IF EXISTS (
+            SELECT 1
+            FROM solana_user_pda_current su
+            WHERE su.login = NEW.owner_login
+        ) THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+            ) VALUES (
+                NEW.owner_login,
+                1,
+                0,
+                0,
+                0,
+                now_ms
+            )
+            ON CONFLICT (login) DO UPDATE SET
+                owned_public_channels_count = user_stats_state.owned_public_channels_count + 1,
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        END IF;
+
+        SELECT COUNT(*)::INTEGER
+        INTO public_subscribers_count
+        FROM connections_state cs
+        JOIN channel_names_state cn
+          ON cn.owner_bch_name = cs.to_bch_name
+         AND cn.channel_root_block_number = cs.to_block_number
+         AND cn.channel_root_block_hash = cs.to_block_hash
+        WHERE cs.rel_type = 30
+          AND cn.owner_bch_name = NEW.owner_bch_name
+          AND cn.channel_root_block_number = NEW.channel_root_block_number
+          AND cn.channel_root_block_hash = NEW.channel_root_block_hash
+          AND cn.channel_type_code = 1;
+
+        INSERT INTO channel_stats_state (
+            owner_bch_name,
+            channel_root_block_number,
+            channel_root_block_hash,
+            owner_login,
+            channel_type_code,
+            subscribers_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.owner_bch_name,
+            NEW.channel_root_block_number,
+            NEW.channel_root_block_hash,
+            NEW.owner_login,
+            NEW.channel_type_code,
+            COALESCE(public_subscribers_count, 0),
+            now_ms
+        )
+        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+            owner_login = EXCLUDED.owner_login,
+            channel_type_code = EXCLUDED.channel_type_code,
+            subscribers_count = EXCLUDED.subscribers_count,
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSE
+        WITH pending AS (
+            SELECT cs.login, COUNT(*)::INTEGER AS cnt
+            FROM connections_state cs
+            WHERE cs.rel_type = 30
+              AND cs.to_bch_name = NEW.owner_bch_name
+              AND cs.to_block_number = NEW.channel_root_block_number
+              AND cs.to_block_hash = NEW.channel_root_block_hash
+            GROUP BY cs.login
+        )
+        UPDATE user_stats_state us
+        SET following_channels_count = GREATEST(0, us.following_channels_count - pending.cnt),
+            updated_at_ms = now_ms
+        FROM pending
+        WHERE us.login = pending.login;
+    END IF;
+
+    RETURN NEW;
+END;
+$$;
+
 CREATE OR REPLACE FUNCTION shine_blocks_line_integrity_bi()
 RETURNS TRIGGER
 LANGUAGE plpgsql
@@ -999,6 +1157,8 @@ AS $$
 DECLARE
     resolved_login TEXT;
     positive_rel_type INTEGER;
+    existed_before BOOLEAN;
+    target_channel_type INTEGER;
 BEGIN
     IF NEW.msg_type <> 3 THEN
         RETURN NEW;
@@ -1011,10 +1171,159 @@ BEGIN
             RETURN NEW;
         END IF;
 
+        SELECT EXISTS (
+            SELECT 1
+            FROM connections_state
+            WHERE login = NEW.login
+              AND rel_type = NEW.msg_sub_type
+              AND to_login = resolved_login
+              AND to_bch_name = NEW.to_bch_name
+              AND to_block_number = COALESCE(NEW.to_block_number, 0)
+              AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+        )
+        INTO existed_before;
+
+        IF NOT existed_before THEN
+            IF NEW.msg_sub_type = 10 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    1,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    close_friends_count = user_stats_state.close_friends_count + 1,
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF NEW.msg_sub_type = 30 THEN
+                IF NEW.to_block_number IS NULL THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        0,
+                        1,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_channels_count = user_stats_state.following_channels_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSIF NEW.to_block_number = 0 THEN
+                    INSERT INTO user_stats_state (
+                        login,
+                        owned_public_channels_count,
+                        following_users_count,
+                        following_channels_count,
+                        close_friends_count,
+                        updated_at_ms
+                    ) VALUES (
+                        NEW.login,
+                        0,
+                        1,
+                        0,
+                        0,
+                        CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                    )
+                    ON CONFLICT (login) DO UPDATE SET
+                        following_users_count = user_stats_state.following_users_count + 1,
+                        updated_at_ms = EXCLUDED.updated_at_ms;
+                ELSE
+                    SELECT cn.channel_type_code
+                    INTO target_channel_type
+                    FROM channel_names_state cn
+                    WHERE cn.owner_bch_name = NEW.to_bch_name
+                      AND cn.channel_root_block_number = NEW.to_block_number
+                      AND cn.channel_root_block_hash = NEW.to_block_hash
+                    LIMIT 1;
+
+                    IF target_channel_type = 1 THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+
+                        INSERT INTO channel_stats_state (
+                            owner_bch_name,
+                            channel_root_block_number,
+                            channel_root_block_hash,
+                            owner_login,
+                            channel_type_code,
+                            subscribers_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.to_bch_name,
+                            NEW.to_block_number,
+                            NEW.to_block_hash,
+                            resolved_login,
+                            target_channel_type,
+                            1,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                            owner_login = EXCLUDED.owner_login,
+                            channel_type_code = EXCLUDED.channel_type_code,
+                            subscribers_count = channel_stats_state.subscribers_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    ELSIF target_channel_type IS NULL THEN
+                        INSERT INTO user_stats_state (
+                            login,
+                            owned_public_channels_count,
+                            following_users_count,
+                            following_channels_count,
+                            close_friends_count,
+                            updated_at_ms
+                        ) VALUES (
+                            NEW.login,
+                            0,
+                            0,
+                            1,
+                            0,
+                            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                        )
+                        ON CONFLICT (login) DO UPDATE SET
+                            following_channels_count = user_stats_state.following_channels_count + 1,
+                            updated_at_ms = EXCLUDED.updated_at_ms;
+                    END IF;
+                END IF;
+            END IF;
+        END IF;
+
         DELETE FROM connections_state
         WHERE login = NEW.login
           AND rel_type = NEW.msg_sub_type
-          AND to_login = resolved_login;
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
 
         INSERT INTO connections_state (
             login, rel_type, to_login, to_bch_name, to_block_number, to_block_hash
@@ -1048,10 +1357,161 @@ BEGIN
         RETURN NEW;
     END IF;
 
+    SELECT EXISTS (
+        SELECT 1
+        FROM connections_state
+        WHERE login = NEW.login
+          AND rel_type = positive_rel_type
+          AND to_login = resolved_login
+          AND to_bch_name = NEW.to_bch_name
+          AND to_block_number = COALESCE(NEW.to_block_number, 0)
+          AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'))
+    )
+    INTO existed_before;
+
+    IF NOT existed_before THEN
+        RETURN NEW;
+    END IF;
+
+    IF positive_rel_type = 10 THEN
+        INSERT INTO user_stats_state (
+            login,
+            owned_public_channels_count,
+            following_users_count,
+            following_channels_count,
+            close_friends_count,
+            updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+        ON CONFLICT (login) DO UPDATE SET
+            close_friends_count = GREATEST(0, user_stats_state.close_friends_count - 1),
+            updated_at_ms = EXCLUDED.updated_at_ms;
+    ELSIF positive_rel_type = 30 THEN
+        IF NEW.to_block_number IS NULL THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSIF NEW.to_block_number = 0 THEN
+            INSERT INTO user_stats_state (
+                login,
+                owned_public_channels_count,
+                following_users_count,
+                following_channels_count,
+                close_friends_count,
+                updated_at_ms
+        ) VALUES (
+            NEW.login,
+            0,
+            0,
+            0,
+            0,
+            CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+        )
+            ON CONFLICT (login) DO UPDATE SET
+                following_users_count = GREATEST(0, user_stats_state.following_users_count - 1),
+                updated_at_ms = EXCLUDED.updated_at_ms;
+        ELSE
+            SELECT cn.channel_type_code
+            INTO target_channel_type
+            FROM channel_names_state cn
+            WHERE cn.owner_bch_name = NEW.to_bch_name
+              AND cn.channel_root_block_number = NEW.to_block_number
+              AND cn.channel_root_block_hash = NEW.to_block_hash
+            LIMIT 1;
+
+            IF target_channel_type = 1 THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+
+                INSERT INTO channel_stats_state (
+                    owner_bch_name,
+                    channel_root_block_number,
+                    channel_root_block_hash,
+                    owner_login,
+                    channel_type_code,
+                    subscribers_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.to_bch_name,
+                    NEW.to_block_number,
+                    NEW.to_block_hash,
+                    resolved_login,
+                    target_channel_type,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (owner_bch_name, channel_root_block_number, channel_root_block_hash) DO UPDATE SET
+                    owner_login = EXCLUDED.owner_login,
+                    channel_type_code = EXCLUDED.channel_type_code,
+                    subscribers_count = GREATEST(0, channel_stats_state.subscribers_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            ELSIF target_channel_type IS NULL THEN
+                INSERT INTO user_stats_state (
+                    login,
+                    owned_public_channels_count,
+                    following_users_count,
+                    following_channels_count,
+                    close_friends_count,
+                    updated_at_ms
+                ) VALUES (
+                    NEW.login,
+                    0,
+                    0,
+                    0,
+                    0,
+                    CAST(EXTRACT(EPOCH FROM clock_timestamp()) * 1000 AS BIGINT)
+                )
+                ON CONFLICT (login) DO UPDATE SET
+                    following_channels_count = GREATEST(0, user_stats_state.following_channels_count - 1),
+                    updated_at_ms = EXCLUDED.updated_at_ms;
+            END IF;
+        END IF;
+    END IF;
+
     DELETE FROM connections_state
     WHERE login = NEW.login
       AND rel_type = positive_rel_type
-      AND to_login = resolved_login;
+      AND to_login = resolved_login
+      AND to_bch_name = NEW.to_bch_name
+      AND to_block_number = COALESCE(NEW.to_block_number, 0)
+      AND to_block_hash = COALESCE(NEW.to_block_hash, decode(repeat('00', 32), 'hex'));
 
     RETURN NEW;
 END;
@@ -1231,4 +1691,10 @@ AFTER INSERT ON blocks
 FOR EACH ROW
 EXECUTE FUNCTION shine_blocks_edit_apply_ai();
 
+DROP TRIGGER IF EXISTS trg_channel_names_state_stats_ai ON channel_names_state;
+CREATE TRIGGER trg_channel_names_state_stats_ai
+AFTER INSERT ON channel_names_state
+FOR EACH ROW
+EXECUTE FUNCTION shine_channel_names_state_stats_ai();
+
 COMMIT;

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

@@ -4,6 +4,8 @@ import org.eclipse.jetty.websocket.api.Session;
 import shine.db.entities.CurrentUserEntry;
 import shine.db.entities.ActiveSessionEntry;
 
+import java.util.List;
+
 /**
  * ConnectionContext — контекст состояния одного WebSocket-соединения.
  * Живёт ровно столько же, сколько живёт подключение.
@@ -77,6 +79,12 @@ public class ConnectionContext {
      */
     private Session wsSession;
 
+    /** Временная server-to-server роль, заявленная через ServerHello. */
+    private boolean serverConnection;
+    private String remoteServerLogin;
+    private int remoteServerProtocolVersion;
+    private List<String> remoteServerCapabilities = List.of();
+
     // --- WebSocket Session ---
 
     public Session getWsSession() {
@@ -87,6 +95,20 @@ public class ConnectionContext {
         this.wsSession = wsSession;
     }
 
+    public boolean isServerConnection() { return serverConnection; }
+    public void setServerConnection(boolean serverConnection) { this.serverConnection = serverConnection; }
+
+    public String getRemoteServerLogin() { return remoteServerLogin; }
+    public void setRemoteServerLogin(String remoteServerLogin) { this.remoteServerLogin = remoteServerLogin; }
+
+    public int getRemoteServerProtocolVersion() { return remoteServerProtocolVersion; }
+    public void setRemoteServerProtocolVersion(int value) { this.remoteServerProtocolVersion = value; }
+
+    public List<String> getRemoteServerCapabilities() { return remoteServerCapabilities; }
+    public void setRemoteServerCapabilities(List<String> capabilities) {
+        this.remoteServerCapabilities = capabilities == null ? List.of() : List.copyOf(capabilities);
+    }
+
     // --- SolanaUser / ActiveSession ---
 
     public CurrentUserEntry getCurrentUser() {
@@ -188,6 +210,10 @@ public class ConnectionContext {
 
         authenticationStatus = AUTH_STATUS_NONE;
         wsSession = null;
+        serverConnection = false;
+        remoteServerLogin = null;
+        remoteServerProtocolVersion = 0;
+        remoteServerCapabilities = List.of();
     }
 
     @Override

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

@@ -133,6 +133,7 @@ import server.logic.ws_protocol.JSON.handlers.system.Net_ClientDebugLog_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_ListBlockchainHeads_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_CallDeliveryReport_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.Net_Ping_Handler;
+import server.logic.ws_protocol.JSON.handlers.system.Net_ServerHello_Handler;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_CallDeliveryReport_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ClientErrorLog_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ClientDebugLog_Request;
@@ -141,6 +142,7 @@ import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_GetServerInfo_
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_GetSyncUserProfile_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ListBlockchainHeads_Request;
 import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_Ping_Request;
+import server.logic.ws_protocol.JSON.handlers.system.entyties.Net_ServerHello_Request;
 
 import java.util.Map;
 
@@ -232,6 +234,7 @@ public final class JsonHandlerRegistry {
             Map.entry("SendSignal", new Net_SendSignal_Handler()),
 
             // --- system ---
+            Map.entry("ServerHello",        new Net_ServerHello_Handler()),
             Map.entry("Ping",               new Net_Ping_Handler()),
             Map.entry("GetServerInfo",      new Net_GetServerInfo_Handler()),
             Map.entry("ListBlockchainHeads", new Net_ListBlockchainHeads_Handler()),
@@ -323,6 +326,7 @@ public final class JsonHandlerRegistry {
             Map.entry("SendSignal", Net_SendSignal_Request.class),
 
             // --- system ---
+            Map.entry("ServerHello",        Net_ServerHello_Request.class),
             Map.entry("Ping",               Net_Ping_Request.class),
             Map.entry("GetServerInfo",      Net_GetServerInfo_Request.class),
             Map.entry("ListBlockchainHeads", Net_ListBlockchainHeads_Request.class),

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/channels/Net_GetChannelMessages_Handler.java

@@ -16,6 +16,8 @@ import utils.blockchain.BlockchainNameUtil;
 import blockchain.body.CreateChannelBody;
 
 import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -65,6 +67,7 @@ public class Net_GetChannelMessages_Handler implements JsonMessageHandler {
             channel.setMetaUpdatedAtMs(meta.metaUpdatedAtMs);
             channel.setChannelTypeCode(meta.channelTypeCode);
             channel.setChannelTypeVersion(meta.channelTypeVersion);
+            channel.setSubscribersCount(loadSubscribersCount(c, ownerBch, lineCode, meta.channelTypeCode));
             Net_GetChannelMessages_Response.BlockRef rootRef = new Net_GetChannelMessages_Response.BlockRef();
             rootRef.setBlockNumber(lineCode);
             rootRef.setBlockHash(req.getChannel().getChannelRootBlockHash());
@@ -180,4 +183,28 @@ public class Net_GetChannelMessages_Handler implements JsonMessageHandler {
             return NetExceptionResponseFactory.error(req, WireCodes.Status.INTERNAL_ERROR, "internal_error", "Внутренняя ошибка сервера");
         }
     }
+
+    private static int loadSubscribersCount(Connection c, String ownerBch, int rootNumber, int channelTypeCode) {
+        if (channelTypeCode != (CreateChannelBody.CHANNEL_TYPE_PUBLIC & 0xFFFF)) {
+            return 0;
+        }
+        String sql = """
+            SELECT subscribers_count
+            FROM channel_stats_state
+            WHERE owner_bch_name = ?
+              AND channel_root_block_number = ?
+            LIMIT 1
+            """;
+        try (PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, ownerBch);
+            ps.setInt(2, rootNumber);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) return 0;
+                return Math.max(0, rs.getInt("subscribers_count"));
+            }
+        } catch (Exception e) {
+            log.warn("GetChannelMessages: не удалось загрузить subscribers_count для {}#{}", ownerBch, rootNumber, e);
+            return 0;
+        }
+    }
 }

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

@@ -32,6 +32,7 @@ public class Net_GetChannelMessages_Response extends Net_Response {
         private Long metaUpdatedAtMs;
         private Integer channelTypeCode;
         private Integer channelTypeVersion;
+        private Integer subscribersCount;
         private BlockRef channelRoot;
 
         public String getOwnerLogin() { return ownerLogin; }
@@ -67,6 +68,9 @@ public class Net_GetChannelMessages_Response extends Net_Response {
         public Integer getChannelTypeVersion() { return channelTypeVersion; }
         public void setChannelTypeVersion(Integer channelTypeVersion) { this.channelTypeVersion = channelTypeVersion; }
 
+        public Integer getSubscribersCount() { return subscribersCount; }
+        public void setSubscribersCount(Integer subscribersCount) { this.subscribersCount = subscribersCount; }
+
         public BlockRef getChannelRoot() { return channelRoot; }
         public void setChannelRoot(BlockRef channelRoot) { this.channelRoot = channelRoot; }
     }

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

@@ -11,11 +11,15 @@ import server.logic.ws_protocol.JSON.handlers.tempToTest.entyties.Net_GetUser_Re
 import server.logic.ws_protocol.JSON.utils.NetExceptionResponseFactory;
 import server.logic.ws_protocol.WireCodes;
 import shine.db.dao.BlockchainStateDAO;
+import shine.db.DbController;
 import shine.db.dao.CurrentUsersDAO;
 import shine.db.entities.BlockchainStateEntry;
 import shine.db.entities.CurrentUserEntry;
 
 import java.sql.SQLException;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
 import java.util.Arrays;
 
 public class Net_GetUser_Handler implements JsonMessageHandler {
@@ -63,6 +67,7 @@ public class Net_GetUser_Handler implements JsonMessageHandler {
             resp.setSolanaKey(u.getSolanaKey());
             resp.setBlockchainKey(u.getBlockchainKey());
             resp.setClientKey(u.getClientKey());
+            loadUserStats(resp, u.getLogin());
 
             // Возвращаем актуальный курсор блокчейна и, если запись состояния потеряна,
             // автоматически восстанавливаем её для существующего пользователя.
@@ -125,4 +130,35 @@ public class Net_GetUser_Handler implements JsonMessageHandler {
         }
         return new String(out);
     }
+
+    private static void loadUserStats(Net_GetUser_Response resp, String login) {
+        resp.setOwnedPublicChannelsCount(0);
+        resp.setFollowingUsersCount(0);
+        resp.setFollowingChannelsCount(0);
+        resp.setCloseFriendsCount(0);
+        String sql = """
+            SELECT owned_public_channels_count,
+                   following_users_count,
+                   following_channels_count,
+                   close_friends_count
+            FROM user_stats_state
+            WHERE login = ?
+            LIMIT 1
+            """;
+        try (Connection c = DbController.getInstance().getConnection();
+             PreparedStatement ps = c.prepareStatement(sql)) {
+            ps.setString(1, login);
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) {
+                    return;
+                }
+                resp.setOwnedPublicChannelsCount(rs.getInt("owned_public_channels_count"));
+                resp.setFollowingUsersCount(rs.getInt("following_users_count"));
+                resp.setFollowingChannelsCount(rs.getInt("following_channels_count"));
+                resp.setCloseFriendsCount(rs.getInt("close_friends_count"));
+            }
+        } catch (Exception e) {
+            log.warn("GetUser: не удалось загрузить статистику для login={}", login, e);
+        }
+    }
 }

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

@@ -43,6 +43,10 @@ public class Net_GetUser_Response extends Net_Response {
     private String serverLastGlobalHash;
     private Long serverBlockchainSizeBytes;
     private Long serverBlockchainSizeLimitBytes;
+    private Integer ownedPublicChannelsCount;
+    private Integer followingUsersCount;
+    private Integer followingChannelsCount;
+    private Integer closeFriendsCount;
 
     public Boolean getExists() { return exists; }
     public void setExists(Boolean exists) { this.exists = exists; }
@@ -74,4 +78,16 @@ public class Net_GetUser_Response extends Net_Response {
     public Long getServerBlockchainSizeLimitBytes() { return serverBlockchainSizeLimitBytes; }
     public void setServerBlockchainSizeLimitBytes(Long serverBlockchainSizeLimitBytes) { this.serverBlockchainSizeLimitBytes = serverBlockchainSizeLimitBytes; }
 
+    public Integer getOwnedPublicChannelsCount() { return ownedPublicChannelsCount; }
+    public void setOwnedPublicChannelsCount(Integer ownedPublicChannelsCount) { this.ownedPublicChannelsCount = ownedPublicChannelsCount; }
+
+    public Integer getFollowingUsersCount() { return followingUsersCount; }
+    public void setFollowingUsersCount(Integer followingUsersCount) { this.followingUsersCount = followingUsersCount; }
+
+    public Integer getFollowingChannelsCount() { return followingChannelsCount; }
+    public void setFollowingChannelsCount(Integer followingChannelsCount) { this.followingChannelsCount = followingChannelsCount; }
+
+    public Integer getCloseFriendsCount() { return closeFriendsCount; }
+    public void setCloseFriendsCount(Integer closeFriendsCount) { this.closeFriendsCount = closeFriendsCount; }
+
 }

SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/userSettings/Net_UpsertUserSetting_Handler.java

@@ -123,7 +123,7 @@ public class Net_UpsertUserSetting_Handler implements JsonMessageHandler {
                         if (remoteLogin.isBlank() || remoteUrl.isBlank()) continue;
                         if (!ownServerLogin.isBlank() && remoteLogin.equalsIgnoreCase(ownServerLogin)) continue;
                         try {
-                            REMOTE.upsertUserSetting(remoteUrl, entry, true);
+                            REMOTE.upsertUserSetting(remoteLogin, remoteUrl, entry, true);
                             delivered++;
                         } catch (Exception e) {
                             log.warn("user_settings immediate sync failed: login={} remoteServer={} reason={}", login, remoteLogin, String.valueOf(e));

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

@@ -11,27 +11,19 @@ import shine.db.entities.BlockEntry;
 import shine.db.entities.SyncServerEntry;
 import utils.blockchain.BlockchainNameUtil;
 
-import java.net.URI;
-import java.net.http.HttpClient;
-import java.net.http.WebSocket;
-import java.nio.ByteBuffer;
-import java.time.Duration;
 import java.util.List;
 import java.util.Locale;
-import java.util.UUID;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicLong;
 
 /**
- * Фоновая one-shot репликация AddBlock на серверы из локальной таблицы sync_servers.
+ * Фоновая репликация AddBlock через общий постоянный WSS-пул на серверы
+ * из локальной таблицы sync_servers.
  */
 public final class AddBlockSyncService {
 
     private static final Logger log = LoggerFactory.getLogger(AddBlockSyncService.class);
     private static final ObjectMapper MAPPER = new ObjectMapper();
-    private static final HttpClient HTTP = HttpClient.newBuilder()
-            .connectTimeout(Duration.ofSeconds(6))
-            .build();
     private static final ExecutorService EXECUTOR = new ThreadPoolExecutor(
             1,
             Math.max(2, Runtime.getRuntime().availableProcessors()),
@@ -100,14 +92,14 @@ public final class AddBlockSyncService {
     }
 
     private void replicateToPartner(SyncServerEntry partner, String blockchainName, int blockNumber, BlockEntry currentBlock) throws Exception {
-        String wsUrl = buildWsUrl(partner.getServerAddress());
+        String wsUrl = ServerConnectionPool.buildWsUrl(partner.getServerAddress());
         if (wsUrl == null) {
             log.warn("AddBlock sync skipped: invalid server_address for partner login={} address={}",
                     partner.getLogin(), partner.getServerAddress());
             return;
         }
 
-        AddBlockPushResult firstTry = pushBlock(wsUrl, blockchainName, currentBlock);
+        AddBlockPushResult firstTry = pushBlock(partner, blockchainName, currentBlock);
         if (firstTry.ok()) {
             log.info("AddBlock sync ok: partner={} blockchainName={} blockNumber={}",
                     partner.getLogin(), blockchainName, blockNumber);
@@ -142,7 +134,7 @@ public final class AddBlockSyncService {
         }
 
         for (BlockEntry blockEntry : missingBlocks) {
-            AddBlockPushResult backfillResult = pushBlock(wsUrl, blockchainName, blockEntry);
+            AddBlockPushResult backfillResult = pushBlock(partner, blockchainName, blockEntry);
             if (!backfillResult.ok()) {
                 log.warn("AddBlock sync backfill failed: partner={} blockchainName={} blockNumber={} code={}",
                         partner.getLogin(), blockchainName, blockEntry.getBlockNumber(), backfillResult.code());
@@ -154,8 +146,8 @@ public final class AddBlockSyncService {
                 partner.getLogin(), blockchainName, fromBlockNumber, blockNumber);
     }
 
-    private AddBlockPushResult pushBlock(String wsUrl, String blockchainName, BlockEntry blockEntry) throws Exception {
-        JsonNode response = sendAddBlock(wsUrl, blockchainName, blockEntry);
+    private AddBlockPushResult pushBlock(SyncServerEntry partner, String blockchainName, BlockEntry blockEntry) throws Exception {
+        JsonNode response = sendAddBlock(partner, blockchainName, blockEntry);
         int status = response.path("status").asInt(500);
         if (status >= 200 && status < 300) {
             return AddBlockPushResult.success();
@@ -172,31 +164,16 @@ public final class AddBlockSyncService {
         return new AddBlockPushResult(false, status, code, serverLastGlobalNumber, serverLastGlobalHash);
     }
 
-    private JsonNode sendAddBlock(String wsUrl, String blockchainName, BlockEntry blockEntry) throws Exception {
-        CompletableFuture<String> responseFuture = new CompletableFuture<>();
-        CountDownLatch openLatch = new CountDownLatch(1);
-        SyncWsListener listener = new SyncWsListener(responseFuture, openLatch);
-
-        WebSocket webSocket = HTTP.newWebSocketBuilder()
-                .connectTimeout(Duration.ofSeconds(6))
-                .buildAsync(URI.create(wsUrl), listener)
-                .get(8, TimeUnit.SECONDS);
-
-        if (!openLatch.await(8, TimeUnit.SECONDS)) {
-            tryAbort(webSocket);
-            throw new TimeoutException("WS open timeout");
-        }
-
-        String requestId = "sync-" + UUID.randomUUID();
-        String json = buildAddBlockJson(requestId, blockchainName, blockEntry);
-        webSocket.sendText(json, true).get(8, TimeUnit.SECONDS);
-
-        String responseJson = responseFuture.get(12, TimeUnit.SECONDS);
-        tryAbort(webSocket);
-        return MAPPER.readTree(responseJson);
+    private JsonNode sendAddBlock(SyncServerEntry partner, String blockchainName, BlockEntry blockEntry) throws Exception {
+        String jsonTemplate = buildAddBlockJsonTemplate(blockchainName, blockEntry);
+        return ServerConnectionPool.getInstance().request(
+                partner.getLogin(),
+                partner.getServerAddress(),
+                jsonTemplate,
+                ServerConnectionPool.Priority.BULK);
     }
 
-    private String buildAddBlockJson(String requestId, String blockchainName, BlockEntry blockEntry) throws Exception {
+    private String buildAddBlockJsonTemplate(String blockchainName, BlockEntry blockEntry) throws Exception {
         String prevHashHex = blockEntry.getBlockNumber() <= 0
                 ? ""
                 : toHex(extractPrevHash32(blockEntry.getBlockBytes()));
@@ -205,8 +182,6 @@ public final class AddBlockSyncService {
         String safeBlockchainName = MAPPER.writeValueAsString(blockchainName);
         String safePrevHashHex = MAPPER.writeValueAsString(prevHashHex);
         String safeBlockBytes = MAPPER.writeValueAsString(blockBytesB64);
-        String safeRequestId = MAPPER.writeValueAsString(requestId);
-
         return """
             {
               "op":"AddBlock",
@@ -218,7 +193,7 @@ public final class AddBlockSyncService {
                 "blockBytesB64":%s
               }
             }
-            """.formatted(safeRequestId, safeBlockchainName, blockEntry.getBlockNumber(), safePrevHashHex, safeBlockBytes);
+            """.formatted("%s", safeBlockchainName, blockEntry.getBlockNumber(), safePrevHashHex, safeBlockBytes);
     }
 
     private static byte[] extractPrevHash32(byte[] blockBytes) {
@@ -240,32 +215,6 @@ public final class AddBlockSyncService {
         return s.isEmpty() ? null : s;
     }
 
-    private static String buildWsUrl(String serverAddressRaw) {
-        String host = normalizeHostLike(serverAddressRaw);
-        if (host == null) return null;
-        return "wss://" + host + "/ws";
-    }
-
-    private static String normalizeHostLike(String value) {
-        if (value == null) return null;
-        String raw = value.trim();
-        if (raw.isEmpty()) return null;
-        try {
-            String withScheme = raw.matches("^[a-zA-Z]+://.*$") ? raw : "https://" + raw;
-            URI uri = URI.create(withScheme);
-            String host = uri.getHost();
-            if (host == null || host.isBlank()) return null;
-            return host.trim().toLowerCase(Locale.ROOT);
-        } catch (Exception e) {
-            String cleaned = raw
-                    .replaceFirst("^[a-zA-Z]+://", "")
-                    .replaceFirst("/.*$", "")
-                    .trim()
-                    .toLowerCase(Locale.ROOT);
-            return cleaned.isEmpty() ? null : cleaned;
-        }
-    }
-
     private static String toHex(byte[] bytes) {
         if (bytes == null) return "";
         StringBuilder sb = new StringBuilder(bytes.length * 2);
@@ -276,17 +225,6 @@ public final class AddBlockSyncService {
         return sb.toString();
     }
 
-    private static void tryAbort(WebSocket webSocket) {
-        try {
-            webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok");
-        } catch (Exception ignored) {
-        }
-        try {
-            webSocket.abort();
-        } catch (Exception ignored) {
-        }
-    }
-
     private record AddBlockPushResult(
             boolean ok,
             int status,
@@ -309,52 +247,4 @@ public final class AddBlockSyncService {
         }
     }
 
-    private static final class SyncWsListener implements WebSocket.Listener {
-        private final CompletableFuture<String> responseFuture;
-        private final CountDownLatch openLatch;
-        private final StringBuilder textBuffer = new StringBuilder();
-
-        private SyncWsListener(CompletableFuture<String> responseFuture, CountDownLatch openLatch) {
-            this.responseFuture = responseFuture;
-            this.openLatch = openLatch;
-        }
-
-        @Override
-        public void onOpen(WebSocket webSocket) {
-            openLatch.countDown();
-            webSocket.request(1);
-        }
-
-        @Override
-        public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
-            textBuffer.append(data);
-            if (last && !responseFuture.isDone()) {
-                responseFuture.complete(textBuffer.toString());
-            }
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onBinary(WebSocket webSocket, ByteBuffer data, boolean last) {
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onClose(WebSocket webSocket, int statusCode, String reason) {
-            if (!responseFuture.isDone()) {
-                responseFuture.completeExceptionally(new IllegalStateException("WS closed before response: " + statusCode + " " + reason));
-            }
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public void onError(WebSocket webSocket, Throwable error) {
-            if (!responseFuture.isDone()) {
-                responseFuture.completeExceptionally(error);
-            }
-            openLatch.countDown();
-        }
-    }
 }

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

@@ -149,7 +149,8 @@ public final class DmDeliveryCoordinator {
             completion.submit(() -> {
                 try {
                     if (!routeLogin.equals(ownServerLogin)) {
-                        REMOTE.receiveIncomingMessage(route.getServerUrl(), incomingBlobB64, ownServerLogin);
+                        REMOTE.receiveIncomingMessage(
+                                routeLogin, route.getServerUrl(), incomingBlobB64, ownServerLogin);
                     }
                     return new RouteAttempt(routeLogin, null);
                 } catch (Exception e) {
@@ -188,6 +189,7 @@ public final class DmDeliveryCoordinator {
         if (incoming == null || outgoing == null) return current;
         try {
             REMOTE.sendMessagePair(
+                    peer.getServerLogin(),
                     peer.getServerUrl(),
                     Base64.getEncoder().encodeToString(incoming.getRawBlock()),
                     Base64.getEncoder().encodeToString(outgoing.getRawBlock()),
@@ -204,7 +206,7 @@ public final class DmDeliveryCoordinator {
         if (peer == null) return current;
         try {
             RemoteDmSyncClient.RemoteDeliveryStatus remote = REMOTE.getDmDeliveryStatus(
-                    peer.getServerUrl(), current.getOutgoingMessageKey());
+                    peer.getServerLogin(), peer.getServerUrl(), current.getOutgoingMessageKey());
             if (remote.known() && remote.delivered()) {
                 return DELIVERY_DAO.markDeliveredFromPeer(current.getEventId(), System.currentTimeMillis());
             }

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

@@ -27,12 +27,15 @@ public final class DmFederationService {
             String ownServerLogin = ownServerLogin();
             for (UserAccessServerRouteEntry route : senderRoutes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
-                REMOTE.sendMessagePair(route.getServerUrl(), incomingBlobB64, outgoingBlobB64, ownServerLogin);
+                REMOTE.sendMessagePair(
+                        route.getServerLogin(), route.getServerUrl(),
+                        incomingBlobB64, outgoingBlobB64, ownServerLogin);
             }
             for (UserAccessServerRouteEntry route : recipientRoutes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
                 if (senderRoutes.containsKey(normalize(route.getServerLogin()))) continue;
-                REMOTE.receiveIncomingMessage(route.getServerUrl(), incomingBlobB64, ownServerLogin);
+                REMOTE.receiveIncomingMessage(
+                        route.getServerLogin(), route.getServerUrl(), incomingBlobB64, ownServerLogin);
             }
         } catch (Exception e) {
             log.warn("DM federation pair fan-out failed: from={} to={}", fromLogin, toLogin, e);
@@ -54,7 +57,8 @@ public final class DmFederationService {
                 if (routeLogin == null) continue;
                 if (ownServerLogin != null && ownServerLogin.equalsIgnoreCase(routeLogin)) continue;
                 if (normalizedSource != null && normalizedSource.equalsIgnoreCase(routeLogin)) continue;
-                REMOTE.receiveIncomingMessage(route.getServerUrl(), incomingBlobB64, ownServerLogin);
+                REMOTE.receiveIncomingMessage(
+                        route.getServerLogin(), route.getServerUrl(), incomingBlobB64, ownServerLogin);
             }
         } catch (Exception e) {
             log.warn("DM federation incoming relay failed: to={}", toLogin, e);
@@ -79,9 +83,9 @@ public final class DmFederationService {
             for (UserAccessServerRouteEntry route : routes.values()) {
                 if (isOwnServer(route, ownServerLogin)) continue;
                 if (oneMessageDelete) {
-                    REMOTE.deleteMessage(route.getServerUrl(), blobB64);
+                    REMOTE.deleteMessage(route.getServerLogin(), route.getServerUrl(), blobB64);
                 } else {
-                    REMOTE.deleteConversation(route.getServerUrl(), blobB64);
+                    REMOTE.deleteConversation(route.getServerLogin(), route.getServerUrl(), blobB64);
                 }
             }
         } catch (Exception e) {

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

@@ -2,37 +2,22 @@ package server.sync;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.net.URI;
-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.Locale;
-import java.util.UUID;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.CompletionStage;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 
 /**
  * Минимальный клиент для межсерверных JSON-op запросов по WSS.
  */
 public final class RemoteBlockchainSyncClient {
 
-    private static final Logger log = LoggerFactory.getLogger(RemoteBlockchainSyncClient.class);
     private static final ObjectMapper MAPPER = new ObjectMapper();
-    private static final HttpClient HTTP = HttpClient.newBuilder()
-            .connectTimeout(Duration.ofSeconds(6))
-            .build();
 
     public List<RemoteBlockchainHead> listBlockchainHeads(String serverAddressRaw) throws Exception {
-        JsonNode response = send(serverAddressRaw, """
+        return listBlockchainHeads(null, serverAddressRaw);
+    }
+
+    public List<RemoteBlockchainHead> listBlockchainHeads(String serverLogin, String serverAddressRaw) throws Exception {
+        JsonNode response = send(serverLogin, serverAddressRaw, """
             {
               "op":"ListBlockchainHeads",
               "requestId":%s,
@@ -62,8 +47,12 @@ public final class RemoteBlockchainSyncClient {
     }
 
     public RemoteSyncUserProfile getSyncUserProfile(String serverAddressRaw, String login) throws Exception {
+        return getSyncUserProfile(null, serverAddressRaw, login);
+    }
+
+    public RemoteSyncUserProfile getSyncUserProfile(String serverLogin, String serverAddressRaw, String login) throws Exception {
         String safeLogin = MAPPER.writeValueAsString(login);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(serverLogin, serverAddressRaw, """
             {
               "op":"GetSyncUserProfile",
               "requestId":%s,
@@ -96,9 +85,17 @@ public final class RemoteBlockchainSyncClient {
         );
     }
 
-    public RemoteBlockchainBlock getBlockchainBlock(String serverAddressRaw, String blockchainName, int blockNumber) throws Exception {
+    public RemoteBlockchainBlock getBlockchainBlock(
+            String serverAddressRaw, String blockchainName, int blockNumber
+    ) throws Exception {
+        return getBlockchainBlock(null, serverAddressRaw, blockchainName, blockNumber);
+    }
+
+    public RemoteBlockchainBlock getBlockchainBlock(
+            String serverLogin, String serverAddressRaw, String blockchainName, int blockNumber
+    ) throws Exception {
         String safeBlockchainName = MAPPER.writeValueAsString(blockchainName);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(serverLogin, serverAddressRaw, """
             {
               "op":"GetBlockchainBlock",
               "requestId":%s,
@@ -126,32 +123,12 @@ public final class RemoteBlockchainSyncClient {
         );
     }
 
-    private JsonNode send(String serverAddressRaw, String jsonTemplate) throws Exception {
-        String requestId = MAPPER.writeValueAsString("sync-" + UUID.randomUUID());
-        String json = jsonTemplate.formatted(requestId);
-        String wsUrl = buildWsUrl(serverAddressRaw);
-        if (wsUrl == null) {
-            throw new IllegalArgumentException("Invalid server address: " + serverAddressRaw);
-        }
-
-        CompletableFuture<String> responseFuture = new CompletableFuture<>();
-        CountDownLatch openLatch = new CountDownLatch(1);
-        SyncWsListener listener = new SyncWsListener(responseFuture, openLatch);
-
-        WebSocket webSocket = HTTP.newWebSocketBuilder()
-                .connectTimeout(Duration.ofSeconds(6))
-                .buildAsync(URI.create(wsUrl), listener)
-                .get(8, TimeUnit.SECONDS);
-
-        if (!openLatch.await(8, TimeUnit.SECONDS)) {
-            tryAbort(webSocket);
-            throw new TimeoutException("WS open timeout");
-        }
-
-        webSocket.sendText(json, true).get(8, TimeUnit.SECONDS);
-        String responseJson = responseFuture.get(12, TimeUnit.SECONDS);
-        tryAbort(webSocket);
-        return MAPPER.readTree(responseJson);
+    private JsonNode send(String serverLogin, String serverAddressRaw, String jsonTemplate) throws Exception {
+        return ServerConnectionPool.getInstance().request(
+                serverLogin,
+                serverAddressRaw,
+                jsonTemplate,
+                ServerConnectionPool.Priority.BULK);
     }
 
     private static String errorCode(JsonNode response) {
@@ -161,40 +138,7 @@ public final class RemoteBlockchainSyncClient {
     }
 
     static String buildWsUrl(String serverAddressRaw) {
-        String host = normalizeHostLike(serverAddressRaw);
-        if (host == null) return null;
-        return "wss://" + host + "/ws";
-    }
-
-    private static String normalizeHostLike(String value) {
-        if (value == null) return null;
-        String raw = value.trim();
-        if (raw.isEmpty()) return null;
-        try {
-            String withScheme = raw.matches("^[a-zA-Z]+://.*$") ? raw : "https://" + raw;
-            URI uri = URI.create(withScheme);
-            String host = uri.getHost();
-            if (host == null || host.isBlank()) return null;
-            return host.trim().toLowerCase(Locale.ROOT);
-        } catch (Exception e) {
-            String cleaned = raw
-                    .replaceFirst("^[a-zA-Z]+://", "")
-                    .replaceFirst("/.*$", "")
-                    .trim()
-                    .toLowerCase(Locale.ROOT);
-            return cleaned.isEmpty() ? null : cleaned;
-        }
-    }
-
-    private static void tryAbort(WebSocket webSocket) {
-        try {
-            webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok");
-        } catch (Exception ignored) {
-        }
-        try {
-            webSocket.abort();
-        } catch (Exception ignored) {
-        }
+        return ServerConnectionPool.buildWsUrl(serverAddressRaw);
     }
 
     public record RemoteBlockchainHead(
@@ -220,53 +164,4 @@ public final class RemoteBlockchainSyncClient {
             long blockchainSizeLimitBytes
     ) {}
 
-    private static final class SyncWsListener implements WebSocket.Listener {
-        private final CompletableFuture<String> responseFuture;
-        private final CountDownLatch openLatch;
-        private final StringBuilder textBuffer = new StringBuilder();
-
-        private SyncWsListener(CompletableFuture<String> responseFuture, CountDownLatch openLatch) {
-            this.responseFuture = responseFuture;
-            this.openLatch = openLatch;
-        }
-
-        @Override
-        public void onOpen(WebSocket webSocket) {
-            openLatch.countDown();
-            webSocket.request(1);
-        }
-
-        @Override
-        public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
-            textBuffer.append(data);
-            if (last && !responseFuture.isDone()) {
-                responseFuture.complete(textBuffer.toString());
-            }
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onBinary(WebSocket webSocket, ByteBuffer data, boolean last) {
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onClose(WebSocket webSocket, int statusCode, String reason) {
-            if (!responseFuture.isDone()) {
-                responseFuture.completeExceptionally(new IllegalStateException("WS closed before response: " + statusCode + " " + reason));
-            }
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public void onError(WebSocket webSocket, Throwable error) {
-            log.warn("Remote sync websocket error: {}", String.valueOf(error));
-            if (!responseFuture.isDone()) {
-                responseFuture.completeExceptionally(error);
-            }
-            openLatch.countDown();
-        }
-    }
 }

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

@@ -3,37 +3,33 @@ package server.sync;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-import java.net.URI;
-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;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 
 /** Клиент стабильных межсерверных DM-операций. */
 public final class RemoteDmSyncClient {
     private static final ObjectMapper MAPPER = new ObjectMapper();
-    private static final HttpClient HTTP = HttpClient.newBuilder()
-            .connectTimeout(Duration.ofSeconds(6))
-            .build();
 
     public void sendMessagePair(
             String serverAddressRaw,
             String incomingBlobB64,
             String outgoingBlobB64,
             String sourceServerLogin
+    ) throws Exception {
+        sendMessagePair(null, serverAddressRaw, incomingBlobB64, outgoingBlobB64, sourceServerLogin);
+    }
+
+    public void sendMessagePair(
+            String targetServerLogin,
+            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, """
+        JsonNode response = send(targetServerLogin, serverAddressRaw, """
             {
               "op":"ReceiveOutcomingMessage",
               "requestId":%s,
@@ -50,10 +46,19 @@ public final class RemoteDmSyncClient {
             String serverAddressRaw,
             String incomingBlobB64,
             String sourceServerLogin
+    ) throws Exception {
+        receiveIncomingMessage(null, serverAddressRaw, incomingBlobB64, sourceServerLogin);
+    }
+
+    public void receiveIncomingMessage(
+            String targetServerLogin,
+            String serverAddressRaw,
+            String incomingBlobB64,
+            String sourceServerLogin
     ) throws Exception {
         String incomingJson = MAPPER.writeValueAsString(incomingBlobB64);
         String sourceServerLoginJson = toOptionalJsonField("sourceServerLogin", sourceServerLogin);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(targetServerLogin, serverAddressRaw, """
             {
               "op":"ReceiveIncomingMessage",
               "requestId":%s,
@@ -66,8 +71,14 @@ public final class RemoteDmSyncClient {
     }
 
     public RemoteDeliveryStatus getDmDeliveryStatus(String serverAddressRaw, String messageKey) throws Exception {
+        return getDmDeliveryStatus(null, serverAddressRaw, messageKey);
+    }
+
+    public RemoteDeliveryStatus getDmDeliveryStatus(
+            String targetServerLogin, String serverAddressRaw, String messageKey
+    ) throws Exception {
         String messageKeyJson = MAPPER.writeValueAsString(messageKey);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(targetServerLogin, serverAddressRaw, """
             {
               "op":"GetDmDeliveryStatus",
               "requestId":%s,
@@ -94,7 +105,21 @@ public final class RemoteDmSyncClient {
             int maxBytes,
             List<String> ackSyncIds
     ) throws Exception {
-        try (RemoteSyncSession session = new RemoteSyncSession(serverAddressRaw)) {
+        return dmSyncBatch(null, serverAddressRaw, ownerLogin, afterStoredAtMs,
+                afterMessageKey, limit, maxBytes, ackSyncIds);
+    }
+
+    public RemoteDmBatch dmSyncBatch(
+            String targetServerLogin,
+            String serverAddressRaw,
+            String ownerLogin,
+            long afterStoredAtMs,
+            String afterMessageKey,
+            int limit,
+            int maxBytes,
+            List<String> ackSyncIds
+    ) throws Exception {
+        try (RemoteSyncSession session = new RemoteSyncSession(targetServerLogin, serverAddressRaw)) {
             return dmSyncBatch(session, ownerLogin, afterStoredAtMs, afterMessageKey,
                     limit, maxBytes, ackSyncIds);
         }
@@ -156,8 +181,12 @@ public final class RemoteDmSyncClient {
     }
 
     public void deleteMessage(String serverAddressRaw, String blobB64) throws Exception {
+        deleteMessage(null, serverAddressRaw, blobB64);
+    }
+
+    public void deleteMessage(String targetServerLogin, String serverAddressRaw, String blobB64) throws Exception {
         String blobJson = MAPPER.writeValueAsString(blobB64);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(targetServerLogin, serverAddressRaw, """
             {
               "op":"DeleteMessage",
               "requestId":%s,
@@ -168,8 +197,12 @@ public final class RemoteDmSyncClient {
     }
 
     public void deleteConversation(String serverAddressRaw, String blobB64) throws Exception {
+        deleteConversation(null, serverAddressRaw, blobB64);
+    }
+
+    public void deleteConversation(String targetServerLogin, String serverAddressRaw, String blobB64) throws Exception {
         String blobJson = MAPPER.writeValueAsString(blobB64);
-        JsonNode response = send(serverAddressRaw, """
+        JsonNode response = send(targetServerLogin, serverAddressRaw, """
             {
               "op":"DeleteConversation",
               "requestId":%s,
@@ -179,27 +212,12 @@ public final class RemoteDmSyncClient {
         ensureOk("DeleteConversation", response);
     }
 
-    private JsonNode send(String serverAddressRaw, String jsonTemplate) throws Exception {
-        String requestId = MAPPER.writeValueAsString("dm-sync-" + UUID.randomUUID());
-        String json = jsonTemplate.formatted(requestId);
-        String wsUrl = RemoteBlockchainSyncClient.buildWsUrl(serverAddressRaw);
-        if (wsUrl == null) throw new IllegalArgumentException("Invalid server address: " + serverAddressRaw);
-
-        CompletableFuture<String> responseFuture = new CompletableFuture<>();
-        CountDownLatch openLatch = new CountDownLatch(1);
-        SyncWsListener listener = new SyncWsListener(responseFuture, openLatch);
-        WebSocket webSocket = HTTP.newWebSocketBuilder()
-                .connectTimeout(Duration.ofSeconds(6))
-                .buildAsync(URI.create(wsUrl), listener)
-                .get(8, TimeUnit.SECONDS);
-        if (!openLatch.await(8, TimeUnit.SECONDS)) {
-            tryAbort(webSocket);
-            throw new TimeoutException("WS open timeout");
-        }
-        webSocket.sendText(json, true).get(8, TimeUnit.SECONDS);
-        String responseJson = responseFuture.get(12, TimeUnit.SECONDS);
-        tryAbort(webSocket);
-        return MAPPER.readTree(responseJson);
+    private JsonNode send(String targetServerLogin, String serverAddressRaw, String jsonTemplate) throws Exception {
+        return ServerConnectionPool.getInstance().request(
+                targetServerLogin,
+                serverAddressRaw,
+                jsonTemplate,
+                ServerConnectionPool.Priority.REALTIME);
     }
 
     private String toOptionalJsonField(String fieldName, String value) throws Exception {
@@ -215,60 +233,10 @@ public final class RemoteDmSyncClient {
         throw new IllegalStateException(op + " failed: status=" + status + " code=" + code);
     }
 
-    private static void tryAbort(WebSocket webSocket) {
-        try { webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok"); } catch (Exception ignored) {}
-        try { webSocket.abort(); } catch (Exception ignored) {}
-    }
-
     public record RemoteDeliveryStatus(String messageKey, boolean known, boolean delivered) {}
     public record RemoteDmBatch(long nextStoredAtMs, String nextMessageKey, boolean hasMore, List<RemoteDmItem> items) {}
     public record RemoteDmItem(
             String syncId, String primaryMessageKey, long storedAtMs, List<String> blobsB64
     ) {}
 
-    private static final class SyncWsListener implements WebSocket.Listener {
-        private final CompletableFuture<String> responseFuture;
-        private final CountDownLatch openLatch;
-        private final StringBuilder textBuffer = new StringBuilder();
-
-        private SyncWsListener(CompletableFuture<String> responseFuture, CountDownLatch openLatch) {
-            this.responseFuture = responseFuture;
-            this.openLatch = openLatch;
-        }
-
-        @Override
-        public void onOpen(WebSocket webSocket) {
-            openLatch.countDown();
-            webSocket.request(1);
-        }
-
-        @Override
-        public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
-            textBuffer.append(data);
-            if (last && !responseFuture.isDone()) responseFuture.complete(textBuffer.toString());
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onBinary(WebSocket webSocket, ByteBuffer data, boolean last) {
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public CompletionStage<?> onClose(WebSocket webSocket, int statusCode, String reason) {
-            if (!responseFuture.isDone()) {
-                responseFuture.completeExceptionally(
-                        new IllegalStateException("WS closed before response: " + statusCode + " " + reason));
-            }
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public void onError(WebSocket webSocket, Throwable error) {
-            if (!responseFuture.isDone()) responseFuture.completeExceptionally(error);
-            openLatch.countDown();
-        }
-    }
 }

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

@@ -1,70 +1,35 @@
 package server.sync;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
 
-import java.net.URI;
-import java.net.http.HttpClient;
-import java.net.http.WebSocket;
-import java.nio.ByteBuffer;
-import java.time.Duration;
-import java.util.UUID;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.CompletionStage;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
-/** Один последовательный WS-сеанс для синхронизации всех данных access-сервера. */
+/**
+ * Логический последовательный сеанс поверх общего постоянного WSS-пула.
+ * close() больше не закрывает физическое соединение с сервером.
+ */
 public final class RemoteSyncSession implements AutoCloseable {
-    private static final ObjectMapper MAPPER = new ObjectMapper();
-    private static final HttpClient HTTP = HttpClient.newBuilder()
-            .connectTimeout(Duration.ofSeconds(6)).build();
-    private final LinkedBlockingQueue<String> responses = new LinkedBlockingQueue<>();
-    private final WebSocket webSocket;
+    private final String serverLogin;
+    private final String serverAddress;
 
+    /** Совместимый конструктор: при отсутствии логина пул использует адрес как ключ peer. */
     public RemoteSyncSession(String serverAddressRaw) throws Exception {
-        String wsUrl = RemoteBlockchainSyncClient.buildWsUrl(serverAddressRaw);
-        if (wsUrl == null) throw new IllegalArgumentException("Invalid server address: " + serverAddressRaw);
-        Listener listener = new Listener(responses);
-        webSocket = HTTP.newWebSocketBuilder().connectTimeout(Duration.ofSeconds(6))
-                .buildAsync(URI.create(wsUrl), listener).get(8, TimeUnit.SECONDS);
+        this(null, serverAddressRaw);
+    }
+
+    public RemoteSyncSession(String serverLogin, String serverAddressRaw) {
+        this.serverLogin = serverLogin;
+        this.serverAddress = serverAddressRaw;
     }
 
     public synchronized JsonNode send(String jsonTemplate) throws Exception {
-        String requestId = MAPPER.writeValueAsString("access-sync-" + UUID.randomUUID());
-        webSocket.sendText(jsonTemplate.formatted(requestId), true).get(8, TimeUnit.SECONDS);
-        String json = responses.poll(12, TimeUnit.SECONDS);
-        if (json == null) throw new TimeoutException("WS response timeout");
-        return MAPPER.readTree(json);
+        return ServerConnectionPool.getInstance().request(
+                serverLogin,
+                serverAddress,
+                jsonTemplate,
+                ServerConnectionPool.Priority.NORMAL);
     }
 
     @Override
     public void close() {
-        try { webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok"); } catch (Exception ignored) {}
-    }
-
-    private static final class Listener implements WebSocket.Listener {
-        private final LinkedBlockingQueue<String> responses;
-        private final StringBuilder text = new StringBuilder();
-
-        private Listener(LinkedBlockingQueue<String> responses) { this.responses = responses; }
-        @Override public void onOpen(WebSocket ws) { ws.request(1); }
-        @Override public CompletionStage<?> onText(WebSocket ws, CharSequence data, boolean last) {
-            text.append(data);
-            if (last) {
-                responses.offer(text.toString());
-                text.setLength(0);
-            }
-            ws.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-        @Override public CompletionStage<?> onBinary(WebSocket ws, ByteBuffer data, boolean last) {
-            ws.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-        @Override public void onError(WebSocket ws, Throwable error) {
-            responses.offer("{\"status\":500,\"code\":\"WS_ERROR\"}");
-        }
+        // Физическое соединение принадлежит ServerConnectionPool.
     }
 }

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

@@ -4,27 +4,22 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import shine.db.entities.UserSettingEntry;
 
-import java.net.URI;
-import java.net.http.HttpClient;
-import java.net.http.WebSocket;
-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;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 
 public final class RemoteUserSettingsSyncClient {
     private static final ObjectMapper MAPPER = new ObjectMapper();
-    private static final HttpClient HTTP = HttpClient.newBuilder()
-            .connectTimeout(Duration.ofSeconds(6))
-            .build();
 
-    public void upsertUserSetting(String serverAddressRaw, UserSettingEntry entry, boolean syncDelivery) throws Exception {
-        try (RemoteSyncSession session = new RemoteSyncSession(serverAddressRaw)) {
+    public void upsertUserSetting(
+            String serverAddressRaw, UserSettingEntry entry, boolean syncDelivery
+    ) throws Exception {
+        upsertUserSetting(null, serverAddressRaw, entry, syncDelivery);
+    }
+
+    public void upsertUserSetting(
+            String targetServerLogin, String serverAddressRaw, UserSettingEntry entry, boolean syncDelivery
+    ) throws Exception {
+        try (RemoteSyncSession session = new RemoteSyncSession(targetServerLogin, serverAddressRaw)) {
             upsertUserSetting(session, entry, syncDelivery);
         }
     }
@@ -69,7 +64,20 @@ public final class RemoteUserSettingsSyncClient {
             int limit,
             int maxBytes
     ) throws Exception {
-        try (RemoteSyncSession session = new RemoteSyncSession(serverAddressRaw)) {
+        return userSettingsSyncBatch(null, serverAddressRaw, ownerLogin,
+                afterTimeMs, afterSettingKey, limit, maxBytes);
+    }
+
+    public RemoteUserSettingsBatch userSettingsSyncBatch(
+            String targetServerLogin,
+            String serverAddressRaw,
+            String ownerLogin,
+            long afterTimeMs,
+            String afterSettingKey,
+            int limit,
+            int maxBytes
+    ) throws Exception {
+        try (RemoteSyncSession session = new RemoteSyncSession(targetServerLogin, serverAddressRaw)) {
             return userSettingsSyncBatch(session, ownerLogin, afterTimeMs, afterSettingKey, limit, maxBytes);
         }
     }
@@ -129,34 +137,6 @@ public final class RemoteUserSettingsSyncClient {
         );
     }
 
-    private JsonNode send(String serverAddressRaw, String jsonTemplate) throws Exception {
-        String requestId = MAPPER.writeValueAsString("user-settings-sync-" + UUID.randomUUID());
-        String json = jsonTemplate.formatted(requestId);
-        String wsUrl = RemoteBlockchainSyncClient.buildWsUrl(serverAddressRaw);
-        if (wsUrl == null) {
-            throw new IllegalArgumentException("Invalid server address: " + serverAddressRaw);
-        }
-
-        CompletableFuture<String> responseFuture = new CompletableFuture<>();
-        CountDownLatch openLatch = new CountDownLatch(1);
-        SyncWsListener listener = new SyncWsListener(responseFuture, openLatch);
-
-        WebSocket webSocket = HTTP.newWebSocketBuilder()
-                .connectTimeout(Duration.ofSeconds(6))
-                .buildAsync(URI.create(wsUrl), listener)
-                .get(8, TimeUnit.SECONDS);
-
-        if (!openLatch.await(8, TimeUnit.SECONDS)) {
-            tryAbort(webSocket);
-            throw new TimeoutException("WS open timeout");
-        }
-
-        webSocket.sendText(json, true).get(8, TimeUnit.SECONDS);
-        String responseJson = responseFuture.get(12, TimeUnit.SECONDS);
-        tryAbort(webSocket);
-        return MAPPER.readTree(responseJson);
-    }
-
     private void ensureOk(String op, JsonNode response) {
         int status = response.path("status").asInt(500);
         if (status >= 200 && status < 300) return;
@@ -165,17 +145,6 @@ public final class RemoteUserSettingsSyncClient {
         throw new IllegalStateException(op + " failed: status=" + status + " code=" + code);
     }
 
-    private static void tryAbort(WebSocket webSocket) {
-        try {
-            webSocket.sendClose(WebSocket.NORMAL_CLOSURE, "ok");
-        } catch (Exception ignored) {
-        }
-        try {
-            webSocket.abort();
-        } catch (Exception ignored) {
-        }
-    }
-
     public record RemoteUserSettingsBatch(
             long nextTimeMs,
             String nextSettingKey,
@@ -194,35 +163,4 @@ public final class RemoteUserSettingsSyncClient {
             String signature
     ) {}
 
-    private static final class SyncWsListener implements WebSocket.Listener {
-        private final CompletableFuture<String> responseFuture;
-        private final CountDownLatch openLatch;
-        private final StringBuilder textBuffer = new StringBuilder();
-
-        private SyncWsListener(CompletableFuture<String> responseFuture, CountDownLatch openLatch) {
-            this.responseFuture = responseFuture;
-            this.openLatch = openLatch;
-        }
-
-        @Override
-        public void onOpen(WebSocket webSocket) {
-            openLatch.countDown();
-            webSocket.request(1);
-        }
-
-        @Override
-        public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
-            textBuffer.append(data);
-            if (last && !responseFuture.isDone()) {
-                responseFuture.complete(textBuffer.toString());
-            }
-            webSocket.request(1);
-            return CompletableFuture.completedFuture(null);
-        }
-
-        @Override
-        public void onError(WebSocket webSocket, Throwable error) {
-            responseFuture.completeExceptionally(error);
-        }
-    }
 }

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

@@ -67,7 +67,8 @@ public final class BlockchainResyncRecoveryOnStartup {
                 blockchainName, partnerLogin, partnerAddress);
 
         try {
-            List<RemoteBlockchainSyncClient.RemoteBlockchainHead> heads = REMOTE.listBlockchainHeads(partnerAddress);
+            List<RemoteBlockchainSyncClient.RemoteBlockchainHead> heads =
+                    REMOTE.listBlockchainHeads(partnerLogin, partnerAddress);
             RemoteBlockchainSyncClient.RemoteBlockchainHead remoteHead = heads.stream()
                     .filter(h -> h != null && blockchainName.equals(h.blockchainName()))
                     .findFirst()

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

@@ -102,7 +102,7 @@ public final class PeriodicBlockchainSyncService {
         if (partnerLogin == null) return;
 
         List<RemoteBlockchainSyncClient.RemoteBlockchainHead> remoteHeads =
-                REMOTE.listBlockchainHeads(partner.getServerAddress());
+                REMOTE.listBlockchainHeads(partner.getLogin(), partner.getServerAddress());
 
         for (RemoteBlockchainSyncClient.RemoteBlockchainHead remoteHead : remoteHeads) {
             if (remoteHead == null || remoteHead.blockchainName() == null || remoteHead.blockchainName().isBlank()) {
@@ -170,7 +170,8 @@ public final class PeriodicBlockchainSyncService {
         int fromBlockNumber = Math.max(localLast + 1, 0);
         for (int blockNumber = fromBlockNumber; blockNumber <= remoteHead.lastBlockNumber(); blockNumber++) {
             RemoteBlockchainSyncClient.RemoteBlockchainBlock remoteBlock =
-                    REMOTE.getBlockchainBlock(partner.getServerAddress(), remoteHead.blockchainName(), blockNumber);
+                    REMOTE.getBlockchainBlock(
+                            partner.getLogin(), partner.getServerAddress(), remoteHead.blockchainName(), blockNumber);
             if (remoteBlock == null) {
                 log.warn("Periodic blockchain sync: remote block not found. partner={} blockchainName={} blockNumber={}",
                         partnerLogin, remoteHead.blockchainName(), blockNumber);
@@ -284,7 +285,8 @@ public final class PeriodicBlockchainSyncService {
             String localPrevHash = "";
             for (int blockNumber = 0; blockNumber <= remoteHead.lastBlockNumber(); blockNumber++) {
                 RemoteBlockchainSyncClient.RemoteBlockchainBlock remoteBlock =
-                        REMOTE.getBlockchainBlock(partner.getServerAddress(), blockchainName, blockNumber);
+                        REMOTE.getBlockchainBlock(
+                                partner.getLogin(), partner.getServerAddress(), blockchainName, blockNumber);
                 if (remoteBlock == null) {
                     log.warn("Blockchain resync: remote block not found. partner={} blockchainName={} blockNumber={}",
                             partnerLogin, blockchainName, blockNumber);

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

@@ -137,7 +137,7 @@ public final class PeriodicUserSettingsSyncService {
         boolean bootstrapCompleted = false;
 
         int appliedDm;
-        try (RemoteSyncSession session = new RemoteSyncSession(route.getServerUrl())) {
+        try (RemoteSyncSession session = new RemoteSyncSession(route.getServerLogin(), route.getServerUrl())) {
         for (int page = 0; page < maxPages; page++) {
             RemoteUserSettingsSyncClient.RemoteUserSettingsBatch batch = REMOTE.userSettingsSyncBatch(
                     session,

SHiNE-server/src/main/java/server/ws/README.md

@@ -83,3 +83,11 @@ WebSocket-эндпоинт для одного соединения.
 
 - `WsServer` = сервер, который слушает порт и вешает `/ws`.
 - `BlockchainWsEndpoint` = обработчик одного WebSocket-подключения, мост между сетью и логикой.
+
+## Постоянные server-to-server соединения
+
+Исходящие межсерверные JSON-запросы проходят через
+`server.sync.ServerConnectionPool`. Пул держит одно постоянное исходящее WSS-
+соединение на `serverLogin`, отправляет `ServerHello`, поддерживает канал через
+WebSocket ping/pong и переподключает его с backoff. DM, settings и blockchain
+используют это соединение с разными приоритетами, не меняя свою бизнес-логику.

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

@@ -12,6 +12,7 @@ import server.sync.PeriodicDmSyncService;
 import server.sync.PeriodicUserSettingsSyncService;
 import server.sync.SolanaUsersSyncStartupService;
 import server.sync.SyncServersBootstrapService;
+import server.sync.ServerConnectionPool;
 import utils.config.AppConfig;
 
 import java.time.Duration;
@@ -104,6 +105,10 @@ public final class WsServer {
 
         server.start();
         log.info("✅ WS сервер запущен на ws://localhost:{}/ws", port);
+        ServerConnectionPool.getInstance().startOrLog();
+        Runtime.getRuntime().addShutdownHook(new Thread(
+                () -> ServerConnectionPool.getInstance().close(),
+                "server-connection-pool-shutdown"));
         PeriodicDmSyncService.startOrLog();
         PeriodicUserSettingsSyncService.startOrLog();
         server.join();

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

@@ -41,6 +41,12 @@ dm.worker.dueLimit=100
 dm.sync.batchLimit=200
 dm.sync.batchMaxBytes=3000000
 dm.sync.maxPagesPerPeer=20
+server.pool.pingIdleSeconds=120
+server.pool.pongTimeoutSeconds=15
+server.pool.requestTimeoutSeconds=12
+server.pool.connectTimeoutSeconds=15
+server.pool.callerTimeoutSeconds=35
+server.pool.maxQueuePerPeer=2000
 server.info.url=
 server.info.physicalRegion=
 server.info.description=

SHiNE-server/src/test/java/test/it/cases/IT_03_AddBlock_NoAuth.java

@@ -5,6 +5,7 @@ import blockchain.body.ConnectionBody;
 import blockchain.body.CreateChannelBody;
 import blockchain.body.HeaderBody;
 import blockchain.body.TextBody;
+import shine.db.DbController;
 import test.it.blockchain.AddBlockSender;
 import test.it.blockchain.ChainState;
 import test.it.utils.TestConfig;
@@ -13,6 +14,10 @@ import test.it.utils.log.TestResult;
 import test.it.utils.ws.WsSession;
 
 import java.time.Duration;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
 
 import static org.junit.jupiter.api.Assertions.*;
 
@@ -117,6 +122,27 @@ public class IT_03_AddBlock_NoAuth {
                 st1.registerTextChannelRoot(newsRootBlock, newsRootHash);
             }
 
+            // CREATE_CHANNEL "Updates" — второй публичный канал того же владельца
+            int updatesRootBlock;
+            byte[] updatesRootHash;
+            {
+                var ln = st1.nextLineByType(ChainState.TYPE_TECH);
+                sender1.send(new CreateChannelBody(
+                        0,
+                        ln.prevLineNumber, ln.prevLineHash32, ln.thisLineNumber,
+                        "Updates",
+                        "",
+                        CreateChannelBody.CHANNEL_TYPE_PUBLIC,
+                        CreateChannelBody.CHANNEL_TYPE_VERSION_DEFAULT
+                ), t);
+
+                updatesRootBlock = st1.lastBlockNumber();
+                updatesRootHash = st1.getHash32(updatesRootBlock);
+                assertNotNull(updatesRootHash);
+
+                st1.registerTextChannelRoot(updatesRootBlock, updatesRootHash);
+            }
+
             // POST #0 в канал "News"
             int newsPost0Block;
             byte[] newsPost0Hash;
@@ -188,7 +214,21 @@ public class IT_03_AddBlock_NoAuth {
                     bch1, newsRootBlock, newsRootHash,
                     "U2 follows U1 channel 'News' (target=U1 CREATE_CHANNEL root)", t);
 
-            // 3) FRIEND взаимно (на HEADER)
+            // 3) U2 подписался на второй канал U1 "Updates"
+            sendConnection(sender2, st2, MsgSubType.CONNECTION_FOLLOW,
+                    bch1, updatesRootBlock, updatesRootHash,
+                    "U2 follows U1 channel 'Updates' (target=U1 CREATE_CHANNEL root)", t);
+
+            assertEquals(2, countConnectionsByOwner(u2, u1),
+                    "U2 должен иметь две отдельные записи подписки на каналы U1");
+            assertEquals(2, countFollowingChannels(u2),
+                    "following_channels_count должен учитывать два разных канала одного владельца");
+            assertEquals(1, countSubscribers(bch1, newsRootBlock, newsRootHash),
+                    "У канала News должен быть 1 подписчик");
+            assertEquals(1, countSubscribers(bch1, updatesRootBlock, updatesRootHash),
+                    "У канала Updates должен быть 1 подписчик");
+
+            // 4) FRIEND взаимно (на HEADER)
             sendConnection(sender1, st1, MsgSubType.CONNECTION_CLOSE_FRIEND,
                     bch2, u2HeaderBlock, u2HeaderHash,
                     "U1 -> U2: FRIEND", t);
@@ -197,7 +237,7 @@ public class IT_03_AddBlock_NoAuth {
                     bch1, u1HeaderBlock, u1HeaderHash,
                     "U2 -> U1: FRIEND", t);
 
-            // 4) CONTACT несколько
+            // 5) CONTACT несколько
             sendConnection(sender1, st1, MsgSubType.CONNECTION_CONTACT,
                     bch2, u2HeaderBlock, u2HeaderHash,
                     "U1 -> U2: CONTACT", t);
@@ -236,7 +276,21 @@ public class IT_03_AddBlock_NoAuth {
                     bch3, u3HeaderBlock, u3HeaderHash,
                     "U1 -> U3: CONTACT", t);
 
-            // 5) U1 убирает U2 из контактов (UNCONTACT)
+            // 6) U2 отписывается только от News
+            sendConnection(sender2, st2, MsgSubType.CONNECTION_UNFOLLOW,
+                    bch1, newsRootBlock, newsRootHash,
+                    "U2 unfollows U1 channel 'News'", t);
+
+            assertEquals(1, countConnectionsByOwner(u2, u1),
+                    "После отписки от одного канала должна остаться одна запись подписки");
+            assertEquals(1, countFollowingChannels(u2),
+                    "following_channels_count должен уменьшиться ровно на 1");
+            assertEquals(0, countSubscribers(bch1, newsRootBlock, newsRootHash),
+                    "После отписки от News у канала должен остаться 0 подписчиков");
+            assertEquals(1, countSubscribers(bch1, updatesRootBlock, updatesRootHash),
+                    "Подписка на Updates должна остаться");
+
+            // 7) U1 убирает U2 из контактов (UNCONTACT)
             sendConnection(sender1, st1, MsgSubType.CONNECTION_UNCONTACT,
                     bch2, u2HeaderBlock, u2HeaderHash,
                     "U1 -> U2: UNCONTACT", t);
@@ -288,4 +342,58 @@ public class IT_03_AddBlock_NoAuth {
                 toBlockHash32
         ), timeout);
     }
+
+    private static int countConnectionsByOwner(String login, String ownerLogin) {
+        return queryInt("""
+                SELECT COUNT(*)
+                FROM connections_state
+                WHERE login = ?
+                  AND rel_type = 30
+                  AND to_login = ?
+                """, login, ownerLogin);
+    }
+
+    private static int countFollowingChannels(String login) {
+        return queryInt("""
+                SELECT following_channels_count
+                FROM user_stats_state
+                WHERE login = ?
+                """, login);
+    }
+
+    private static int countSubscribers(String ownerBlockchainName, int rootBlockNumber, byte[] rootBlockHash) {
+        return queryInt("""
+                SELECT COALESCE(subscribers_count, 0)
+                FROM channel_stats_state
+                WHERE owner_bch_name = ?
+                  AND channel_root_block_number = ?
+                  AND channel_root_block_hash = ?
+                """, ownerBlockchainName, rootBlockNumber, rootBlockHash);
+    }
+
+    private static int queryInt(String sql, Object... params) {
+        try (Connection c = DbController.getInstance().getConnection();
+             PreparedStatement ps = c.prepareStatement(sql)) {
+            for (int i = 0; i < params.length; i++) {
+                Object p = params[i];
+                if (p instanceof String s) {
+                    ps.setString(i + 1, s);
+                } else if (p instanceof Integer n) {
+                    ps.setInt(i + 1, n);
+                } else if (p instanceof byte[] bytes) {
+                    ps.setBytes(i + 1, bytes);
+                } else {
+                    throw new IllegalArgumentException("Unsupported SQL param type: " + (p == null ? "null" : p.getClass()));
+                }
+            }
+            try (ResultSet rs = ps.executeQuery()) {
+                if (!rs.next()) {
+                    throw new IllegalStateException("Query returned no rows: " + sql);
+                }
+                return rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            throw new RuntimeException("DB query failed: " + sql, e);
+        }
+    }
 }

deploy/backup/backup-version.properties

@@ -1,3 +1,3 @@
 backup.schema.version=2
-backup.full.version=3
-last.full.backup.date=2026-08-08
+backup.full.version=4
+last.full.backup.date=2026-08-25

docs/API/01_User_Registration_API.md

@@ -57,7 +57,11 @@
     "serverLastGlobalNumber": 128,
     "serverLastGlobalHash": "4f...ab",
     "serverBlockchainSizeBytes": 45212,
-    "serverBlockchainSizeLimitBytes": 100000
+    "serverBlockchainSizeLimitBytes": 100000,
+    "ownedPublicChannelsCount": 3,
+    "followingUsersCount": 18,
+    "followingChannelsCount": 27,
+    "closeFriendsCount": 4
   }
 }
 ```
@@ -68,6 +72,10 @@
 - `serverLastGlobalHash` — hash последнего блока (hex-строка 64 символа);
 - `serverBlockchainSizeBytes` — текущий размер пользовательского блокчейна на сервере в байтах;
 - `serverBlockchainSizeLimitBytes` — текущий лимит размера блокчейна на сервере в байтах;
+- `ownedPublicChannelsCount` — количество публичных каналов, владельцем которых является пользователь;
+- `followingUsersCount` — количество пользователей, на которых подписан пользователь;
+- `followingChannelsCount` — количество публичных каналов, на которые подписан пользователь;
+- `closeFriendsCount` — количество близких друзей пользователя.
 
 ### Успешный ответ: пользователя нет
 

docs/API/06_Channels_Read_API.md

@@ -158,6 +158,7 @@
       "avaSha256": "0123...",
       "avaSize": 248193,
       "metaUpdatedAtMs": 1760000000000,
+      "subscribersCount": 128,
       "channelRoot": { "blockNumber": 123, "blockHash": "..." }
     },
     "metaEvents": [

docs/API/09_Operations_Index.md

@@ -32,6 +32,7 @@
 | `CloseActiveSession` | `03_Session_Management_API.md` | закрытие активной сессии |
 | `AddBlock` | `04_Add_Block_to_Blockchain_API.md` | добавление блока в блокчейн |
 | `GetBlockchainBlock` | `04_Add_Block_to_Blockchain_API.md` | чтение одного блока блокчейна |
+| `ServerHello` | `16_Server_Connection_Pool_API.md` | объявление server-to-server соединения и возможностей peer без криптографической проверки |
 | `Ping` | `05_Technical_Requests_API.md` | keep-alive |
 | `GetServerInfo` | `05_Technical_Requests_API.md` | публичная информация о сервере |
 | `ListBlockchainHeads` | `05_Technical_Requests_API.md` | список heads всех локальных блокчейнов |
@@ -79,6 +80,7 @@
 
 - `ReceiveOutcomingMessage` зарегистрирован как алиас того же handler/request-класса, что и `SendMessagePair`, и сохраняет прежний межсерверный payload.
 - Межсерверные DM-операции пока доверяют `sourceServerLogin`; отдельная межсерверная авторизация запланирована позднее.
+- `ServerHello` пока принимает заявленный `serverLogin` на доверии и не является криптографической аутентификацией.
 - Отдельных HTTP endpoints для DM-файлов сейчас нет.
 - Классы `Net_MarkChannelMessagesSeen_*` существуют в коде, но операция `MarkChannelMessagesSeen` не зарегистрирована в `JsonHandlerRegistry`, поэтому в публичный список API не входит.
 - HTTP debug endpoints из `src/main/java/server/debug/` не входят в этот индекс WebSocket `op`; они описаны отдельно в `13_HTTP_Debug_API.md`.

docs/API/13_User_Settings_API.md

@@ -83,7 +83,10 @@
 
 ## 5. Синхронизация
 
-Настройки и DM имеют раздельные таблицы и правила ACK, но периодический процесс открывает один последовательный WS-сеанс с peer: сначала синхронизирует настройки, затем забирает `DmSyncBatch`.
+Настройки и DM имеют раздельные таблицы и правила ACK, но периодический процесс
+использует один логический последовательный сеанс поверх постоянного WSS-пула:
+сначала синхронизирует настройки, затем забирает `DmSyncBatch`. Завершение
+логического сеанса не закрывает физический сокет.
 
 - локальная запись создаётся с `synced=false`, если её ещё не подтвердил второй сервер;
 - если запись пришла с другого сервера, она сохраняется сразу как `synced=true`;

docs/Blockchain/CHANGELOG.md

@@ -1,5 +1,18 @@
 # История изменений документации блокчейна
 
+## 2026-08-25 19:45:18 +0400
+- Базовый коммит-ориентир: `3a58519`.
+- Добавлены runtime-агрегаты статистики:
+  - `user_stats_state` хранит `owned_public_channels_count`, `following_users_count`, `following_channels_count`, `close_friends_count`;
+  - `channel_stats_state` хранит `subscribers_count` для публичных каналов.
+- Обновление статистики выполняется атомарно вместе с записью блока в той же SQL-транзакции `AddBlock`.
+- После полного resync статистика пересобирается из текущих `connections_state` и `channel_names_state`, чтобы старые данные продолжали работать.
+
+## 2026-08-25 19:59:00 +0400
+- Базовый коммит-ориентир: `working tree`.
+- Триггер `channel_names_state` для статистики сделан устойчивым к старым данным, где канал уже есть, а владельца ещё нет в `solana_user_pda_current`.
+- Добавлена совместимая миграция `v15`, чтобы существующие базы перестали падать на старых каналах при старте сервера.
+
 ## 2026-08-12 13:00:00 +0400
 - Базовый коммит-ориентир: `working tree`.
 - Канонический текстовый формат служебных тегов сокращён:

docs/Blockchain/README.md

@@ -42,4 +42,6 @@
 ## Обязательное сопровождение
 - При любом изменении формата/правил блокчейна в коде документы этого каталога обновляются в том же наборе изменений.
 - Обычный `AddBlock` сейчас пишет через `<blockchainName>.tmp_bch`, `<blockchainName>.write_check` и `<blockchainName>.write_pending`; эта схема и `BlockchainTmpRecoveryOnStartup` должны быть описаны в актуальной документации по синхронизации и recovery.
+- Для runtime-агрегатов статистики `user_stats_state` и `channel_stats_state` действует тот же принцип derived state: они обновляются вместе с `AddBlock` и полностью пересобираются при full resync.
+- Если в старых данных есть канал владельца, которого ещё нет в `solana_user_pda_current`, сервер не падает: `channel_stats_state` всё равно обновляется, а `user_stats_state` создаётся только после появления пользователя в Solana PDA.
 - Каждое обновление документов фиксируется в `CHANGELOG.md` с датой/временем и хэшем коммита-основания.

docs/Blockchain/sync-between-servers.md

@@ -183,16 +183,20 @@ Full resync запускается только тогда, когда:
 
 Настройка влияет именно на этап подготовки отсутствующей локальной цепочки во время periodic sync.
 
-## 5. Возможное развитие server-to-server транспорта
+## 5. Реализованный постоянный server-to-server транспорт
 
-Этот раздел не описывает текущую DM-доставку. DM уже использует короткие one-shot WebSocket-вызовы, indexed outbox и ACK. Ниже остаётся возможное развитие постоянного транспорта и server-auth.
+Этот раздел не меняет текущую семантику DM, settings и blockchain. Он описывает
+единый постоянный WSS-транспорт, через который выполняются уже существующие операции.
 
 ### 5.1 Межсерверное соединение
 
-- Серверы устанавливают постоянное WebSocket-соединение друг с другом.
+- Серверы устанавливают постоянное исходящее WebSocket-соединение друг с другом.
 - Адрес партнёра определяется по `server_address` из его Solana PDA.
-- Аутентификация: подпись Ed25519 корневым ключом сервера (`root_key` из PDA).
-- При разрыве — переподключение с экспоненциальным backoff.
+- После подключения отправляется `ServerHello` с `serverLogin`, версией протокола и capabilities.
+- На текущем этапе `serverLogin` принимается на доверии; подпись Ed25519 корневым ключом сервера отложена.
+- При разрыве выполняется переподключение с jitter/backoff до 60 секунд.
+- После 120 секунд отсутствия полезного трафика отправляется WebSocket ping; pong ожидается 15 секунд.
+- Один физический канал переиспользуют DM, настройки и blockchain.
 
 ### 5.2 Доставка новых данных (push)
 
@@ -246,19 +250,21 @@ Full resync запускается только тогда, когда:
 | Плановый blockchain sync при старте + каждые 12 часов | ✅ Реализовано |
 | Обход Solana RPC через `sync.importUserProfileFromPartner.enabled` | ✅ Реализовано |
 | Обычный `AddBlock` через `tmp_bch`/`write_check`/`write_pending` | ✅ Реализовано |
-| Межсерверный постоянный WebSocket-канал | Нужна реализация |
+| Межсерверный постоянный WebSocket-канал | ✅ Реализован общий `ServerConnectionPool` |
 | Асинхронная доставка DM на access-серверы получателя | ✅ Реализовано |
 | Retry DM до 1 часа + UI-state | ✅ Реализовано |
 | Репликация DM на второй access-сервер по `synced` | ✅ Реализовано |
 | Read-only `GetDmDeliveryStatus` | ✅ Реализовано |
-| Push блоков блокчейна партнёрам | ✅ Реализована базовая one-shot версия |
+| Push блоков блокчейна партнёрам | ✅ Выполняется через постоянный WSS-пул |
 | Periodic backfill отсутствующего хвоста | ✅ Реализовано |
 | Разрешение рассинхрона / divergence | ✅ Реализована базовая full-resync схема во время periodic sync |
 | Startup recovery по `*.resync_pending` marker-file | ✅ Реализовано |
 | Маршрутизация DM через один/два `access_servers` | ✅ Реализовано |
 | Криптографическая server-to-server авторизация DM | Нужна реализация |
 
-Текущая версия сервера умеет синхронизацию блокчейнов и DM. Постоянные server-to-server соединения не требуются для текущей one-shot WS-реализации; отдельной будущей задачей остаётся криптографическая авторизация DM-вызовов.
+Текущая версия сервера использует постоянный WSS-пул для существующих
+server-to-server JSON-операций. Отдельной будущей задачей остаётся
+криптографическая авторизация server-to-server вызовов.
 
 Следующие отдельные шаги после текущего этапа:
 - отдельно проверить full-resync и startup-recovery на реальном тестовом прогоне после ручного удаления БД/файлов.

shine-UI/js/app.js

@@ -93,6 +93,7 @@ import * as chatView from './pages/chat-view.js?v=202608221218';
 import * as userProfileView from './pages/user-profile-view.js';
 import * as channelsList from './pages/channels-list.js?v=202608221218';
 import * as channelView from './pages/channel-view.js';
+import * as channelAboutView from './pages/channel-about-view.js';
 import * as channelThreadView from './pages/channel-thread-view.js';
 import * as addChannelView from './pages/add-channel-view.js';
 import * as addPersonalPublicChatView from './pages/add-personal-public-chat-view.js';
@@ -155,6 +156,7 @@ const routes = {
   user: userProfileView,
   'channels-list': channelsList,
   'channel-view': channelView,
+  'channel-about-view': channelAboutView,
   'channel-thread-view': channelThreadView,
   'add-channel-view': addChannelView,
   'add-personal-public-chat-view': addPersonalPublicChatView,
@@ -212,6 +214,7 @@ const GUEST_ALLOWED_PAGES = new Set([
   'network-view',
   'channels-list',
   'channel-view',
+  'channel-about-view',
   'channel-thread-view',
   'user',
   'contact-search-view',

shine-UI/js/components/shine-logo.js

@@ -0,0 +1,10 @@
+export const SHINE_CONNECTIONS_LOGO_SRC = '/assets/SHiNE_connections_blue.svg';
+
+export function createShineConnectionsLogo({ className = '' } = {}) {
+  const img = document.createElement('img');
+  img.src = SHINE_CONNECTIONS_LOGO_SRC;
+  img.alt = '';
+  img.setAttribute('aria-hidden', 'true');
+  img.className = String(className || '').trim();
+  return img;
+}

shine-UI/js/components/toolbar.js

@@ -1,6 +1,7 @@
 import { resolveToolbarActive } from '../router.js';
 import { state } from '../state.js';
 import { openAuthRequiredModal } from '../services/auth-required-modal.js';
+import { SHINE_CONNECTIONS_LOGO_SRC } from './shine-logo.js';
 
 // iconImg — путь к неоновой PNG (если есть, рисуем картинку вместо эмодзи); glow — цвет доп.свечения
 // активной/нажатой вкладки (var --tab-glow); hero — «герой»-вкладка (крупнее/ярче, всегда светится).
@@ -8,7 +9,7 @@ import { openAuthRequiredModal } from '../services/auth-required-modal.js';
 const ITEMS = [
   { pageId: 'messages-list', label: 'Личные', icon: '💬', iconImg: '/assets/icon_lichnye.png', glow: 'rgba(0, 229, 255, .6)' },
   { pageId: 'channels-list', label: 'Каналы', icon: '📢', iconImg: '/assets/icon_kanaly.png', glow: 'rgba(0, 229, 255, .6)' },
-  { pageId: 'network-view', label: 'Связи', icon: '🕸', iconImg: '/assets/icon_svyazi.png', glow: 'rgba(0, 229, 255, .6)', hero: true },
+  { pageId: 'network-view', label: 'Связи', icon: '🕸', iconImg: SHINE_CONNECTIONS_LOGO_SRC, glow: 'rgba(0, 229, 255, .6)', hero: true },
   { pageId: 'notifications-view', label: 'Уведомления', icon: '🔔', iconImg: '/assets/icon_uvedomleniya.png', glow: 'rgba(0, 229, 255, .6)' },
   { pageId: 'profile-view', label: 'Профиль', icon: '👤', iconImg: '/assets/icon_profil.png', glow: 'rgba(0, 229, 255, .6)' },
 ];

shine-UI/js/pages/channel-about-view.js

@@ -0,0 +1,182 @@
+import { renderHeader } from '../components/header.js';
+import { authService, state } from '../state.js';
+import { navigateBack } from '../router.js';
+import { makeShineChannelRootRoute, makeShineChannelShortRoute } from '../services/shine-routes.js';
+import { showToast } from '../services/channels-ux.js';
+import { toUserMessage } from '../services/ui-error-texts.js';
+
+export const pageMeta = { id: 'channel-about-view', title: 'О канале' };
+
+function escapeHtml(text) {
+  return String(text || '')
+    .replaceAll('&', '&')
+    .replaceAll('<', '&lt;')
+    .replaceAll('>', '&gt;')
+    .replaceAll('"', '&quot;')
+    .replaceAll("'", '&#39;');
+}
+
+function normalizeHash(hash) {
+  const normalized = String(hash || '').trim().toLowerCase();
+  return normalized || '0';
+}
+
+function toSafeInt(value) {
+  const parsed = Number(value);
+  return Number.isFinite(parsed) ? parsed : null;
+}
+
+function findCachedChannel(ownerBlockchainName, channelRootBlockNumber, channelRootBlockHash) {
+  const ownerBch = String(ownerBlockchainName || '').trim().toLowerCase();
+  const rootNo = Number(channelRootBlockNumber);
+  const rootHash = normalizeHash(channelRootBlockHash);
+  const rows = Object.values(state.channelsIndex || {});
+  return rows.find((row) => (
+    String(row?.channel?.ownerBlockchainName || '').trim().toLowerCase() === ownerBch
+    && Number(row?.channel?.channelRoot?.blockNumber) === rootNo
+    && normalizeHash(row?.channel?.channelRoot?.blockHash) === rootHash
+  )) || null;
+}
+
+function buildChannelLink(route) {
+  if (!route) return '';
+  const url = new URL(window.location.href);
+  url.pathname = `/${String(route).replace(/^\/+/, '')}`;
+  url.hash = '';
+  return url.toString();
+}
+
+function statsText(value) {
+  return Number.isFinite(Number(value)) ? String(Math.max(0, Number(value))) : '0';
+}
+
+export function render({ navigate, route, chrome }) {
+  const ownerBlockchainName = String(route?.params?.ownerBlockchainName || '').trim();
+  const channelRootBlockNumber = toSafeInt(route?.params?.channelRootBlockNumber);
+  const channelRootBlockHash = normalizeHash(route?.params?.channelRootBlockHash);
+  const channelRoute = makeShineChannelRootRoute({
+    ownerBlockchainName,
+    channelRootBlockNumber,
+    channelRootBlockHash,
+  });
+
+  const screen = document.createElement('section');
+  screen.className = 'stack channels-screen channels-screen--channel-about';
+
+  const topbar = renderHeader({
+    title: 'О канале',
+    leftAction: {
+      label: '←',
+      onClick: () => {
+        if (window.history.length > 1) {
+          navigateBack();
+          return;
+        }
+        if (channelRoute) navigate(channelRoute);
+      },
+      ariaLabel: 'Назад',
+      title: 'Назад',
+    },
+  });
+  chrome?.setTopbar(topbar);
+
+  const card = document.createElement('div');
+  card.className = 'card stack channel-about-card';
+  card.innerHTML = `
+    <div class="stack" id="channel-about-content">
+      <div class="meta-muted">Загрузка данных канала…</div>
+    </div>
+  `;
+
+  const footer = document.createElement('div');
+  footer.className = 'meta-muted screen-footer';
+  footer.textContent = 'О канале (channel-about-view)';
+
+  screen.append(card, footer);
+
+  const renderContent = (channel) => {
+    const cleanName = String(channel?.displayTitle || channel?.displayName || channel?.channelName || 'Канал').trim();
+    const ownerName = String(channel?.ownerLogin || channel?.ownerName || 'автор').trim();
+    const description = String(channel?.channelDescription || channel?.description || '').trim();
+    const subscribersCount = Number(channel?.subscribersCount || 0);
+    const aboutRoute = makeShineChannelRootRoute({
+      ownerBlockchainName: channel?.ownerBlockchainName || ownerBlockchainName,
+      channelRootBlockNumber: channel?.channelRoot?.blockNumber ?? channelRootBlockNumber,
+      channelRootBlockHash: channel?.channelRoot?.blockHash ?? channelRootBlockHash,
+    });
+    const channelLinkRoute = makeShineChannelShortRoute({
+      ownerBlockchainName: channel?.ownerBlockchainName || ownerBlockchainName,
+      channelName: channel?.channelName || '',
+    });
+    const channelLink = buildChannelLink(channelLinkRoute);
+    const changedAtMs = Number(channel?.metaUpdatedAtMs || 0);
+    const changedAtLabel = changedAtMs ? new Date(changedAtMs).toLocaleString('ru-RU') : '—';
+    const avatarState = String(channel?.avaAr || '').trim() ? 'Установлен' : 'Не установлен';
+
+    const content = card.querySelector('#channel-about-content');
+    if (!content) return;
+    content.innerHTML = `
+      <div class="channel-profile-modal-head">
+        <h2 class="modal-title">${escapeHtml(cleanName)}</h2>
+      </div>
+      <div class="channel-meta-details-grid">
+        <span>Дата</span><strong>${escapeHtml(changedAtLabel)}</strong>
+        <span>Владелец</span><strong>${escapeHtml(ownerName)}</strong>
+        <span>Подписчиков</span><strong>${escapeHtml(statsText(subscribersCount))}</strong>
+        <span>Системное имя</span><code>${escapeHtml(String(channel?.channelName || '').trim() || 'channel')}</code>
+        <span>Название</span><strong>${escapeHtml(cleanName)}</strong>
+        <span>Описание</span><span style="white-space: pre-wrap;">${escapeHtml(description || 'Описание не задано.')}</span>
+        <span>Аватар</span><span>${escapeHtml(avatarState)}</span>
+        <span>Ссылка</span><span><a href="${escapeHtml(channelLink)}">${escapeHtml(channelLink)}</a></span>
+      </div>
+      <div class="form-actions-grid">
+        <button class="secondary-btn" type="button" id="channel-about-open">Открыть канал</button>
+        <button class="secondary-btn" type="button" id="channel-about-copy">Скопировать ссылку</button>
+      </div>
+    `;
+
+    content.querySelector('#channel-about-open')?.addEventListener('click', () => {
+      if (!channelLinkRoute) return;
+      navigate(channelLinkRoute);
+    });
+    content.querySelector('#channel-about-copy')?.addEventListener('click', async () => {
+      if (!channelLink) return;
+      try {
+        await navigator.clipboard.writeText(channelLink);
+        showToast('Ссылка скопирована');
+      } catch (error) {
+        showToast(toUserMessage(error, 'Не удалось скопировать ссылку'), { kind: 'error' });
+      }
+    });
+  };
+
+  const cached = findCachedChannel(ownerBlockchainName, channelRootBlockNumber, channelRootBlockHash);
+  if (cached?.channel) {
+    renderContent({
+      ...cached.channel,
+      subscribersCount: cached.channel.subscribersCount ?? cached.subscribersCount ?? 0,
+    });
+    return screen;
+  }
+
+  void (async () => {
+    try {
+      const payload = await authService.getChannelMessages({
+        ownerBlockchainName,
+        channelRootBlockNumber,
+        channelRootBlockHash,
+      }, 1, 'asc', String(state.session.login || '').trim());
+      renderContent(payload?.channel || {});
+    } catch (error) {
+      const content = card.querySelector('#channel-about-content');
+      if (content) {
+        content.innerHTML = `
+          <div class="meta-muted">Не удалось загрузить данные канала.</div>
+          <div class="meta-muted">${escapeHtml(toUserMessage(error, 'Проверьте подключение к серверу и повторите попытку.'))}</div>
+        `;
+      }
+    }
+  })();
+
+  return screen;
+}

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

@@ -30,6 +30,7 @@ import {
   extractLoginFromBlockchainName,
   makeProfileRoute,
   makeShineMessageRoute,
+  makeShineChannelAboutRoute,
 } from '../services/shine-routes.js';
 import { parseDmTechBlocks } from '../services/dm-tech-blocks.js';
 
@@ -2550,13 +2551,12 @@ export function render({ navigate, route, chrome }) {
         channelHeaderButton.disabled = false;
         channelHeaderButton.onclick = (event) => {
           animatePress(event.currentTarget);
-          openAboutChannelModal(apiData.channel, {
-            canEdit: apiData?.isOwnChannel === true && !apiData?.isDiary && !isStoriesChannel(apiData?.channel),
-            onEdit: () => openEditChannelModal({
-              channel: apiData.channel,
-              onSave: onEditChannelMeta,
-            }),
+          const aboutRoute = makeShineChannelAboutRoute({
+            ownerBlockchainName: apiData?.channel?.ownerBlockchainName || apiData?.selector?.ownerBlockchainName || '',
+            channelRootBlockNumber: apiData?.selector?.channelRootBlockNumber ?? apiData?.channel?.channelRoot?.blockNumber ?? '',
+            channelRootBlockHash: apiData?.selector?.channelRootBlockHash ?? apiData?.channel?.channelRoot?.blockHash ?? '',
           });
+          if (aboutRoute) navigate(aboutRoute);
         };
       }
       if (channelEntrypointButton) {

shine-UI/js/pages/channels-list.js

@@ -12,6 +12,7 @@ import {
   writeChannelNotificationsState,
 } from '../services/channels-ux.js';
 import { makeShineChannelRoute } from '../services/shine-routes.js';
+import { makeShineChannelShortRoute } from '../services/shine-routes.js';
 import { renderAvatar } from '../components/avatar-image.js';
 import { createOverflowDots } from '../components/overflow-dots.js';
 import { parseDmTechBlocks } from '../services/dm-tech-blocks.js';
@@ -64,10 +65,9 @@ function buildChannelRouteFromSummary(summary, fallbackId) {
   const ownerBch = String(summary?.channel?.ownerBlockchainName || '').trim();
   const ownerLogin = String(summary?.channel?.ownerLogin || '').trim();
   const channelName = String(summary?.channel?.channelName || '').trim();
-  return makeShineChannelRoute({
-    ownerLogin,
+  return makeShineChannelShortRoute({
     ownerBlockchainName: ownerBch,
-    channelName: channelName || fallbackId,
+    channelName: channelName || fallbackId || ownerLogin,
   });
 }
 

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

@@ -1,6 +1,7 @@
 import { renderHeader } from '../components/header.js';
 import { renderUserAvatar } from '../components/avatar-image.js';
 import { createOverflowDots } from '../components/overflow-dots.js';
+import { createShineConnectionsLogo } from '../components/shine-logo.js';
 import { directMessages } from '../mock-data.js';
 import {
   addAppLogEntry,
@@ -30,11 +31,12 @@ import { isTextToSpeechConfigured, speakTextBySettings } from '../services/speec
 import { showToast } from '../services/channels-ux.js';
 import { buildDmReplyTechBlock, parseDmTechBlocks, sanitizeUserDmTextForSend } from '../services/dm-tech-blocks.js';
 import { loadProfileSnapshot } from '../services/user-profile-params.js';
+import { makeProfileLinksRoute, makeProfileRoute } from '../services/shine-routes.js';
 
 export const pageMeta = { id: 'chat-view', title: 'Чат' };
 const CONVERSATION_CLEAR_NOTICE_TEXT = 'История переписки очищена с этого места';
 
-function createChatHeaderParts(login) {
+function createChatHeaderParts(login, navigate) {
   const cleanLogin = String(login || '').trim() || 'unknown';
 
   const avatarSlot = document.createElement('span');
@@ -47,6 +49,13 @@ function createChatHeaderParts(login) {
   });
   avatarSlot.append(initialAvatar);
 
+  const avatarButton = document.createElement('button');
+  avatarButton.type = 'button';
+  avatarButton.className = 'chat-header-avatar-btn';
+  avatarButton.title = `Профиль ${cleanLogin}`;
+  avatarButton.setAttribute('aria-label', `Открыть профиль ${cleanLogin}`);
+  avatarButton.append(avatarSlot);
+
   const loginEl = document.createElement('span');
   loginEl.className = 'chat-header-login';
   loginEl.setAttribute('role', 'heading');
@@ -75,7 +84,23 @@ function createChatHeaderParts(login) {
     })
     .catch(() => {});
 
-  return { centerNode: loginEl, avatarSlot };
+  const connectionsButton = document.createElement('button');
+  connectionsButton.type = 'button';
+  connectionsButton.className = 'icon-btn chat-header-icon-btn chat-header-connections-btn';
+  connectionsButton.title = `Связи ${cleanLogin}`;
+  connectionsButton.setAttribute('aria-label', `Открыть связи ${cleanLogin}`);
+  connectionsButton.append(createShineConnectionsLogo({ className: 'chat-header-connections-logo' }));
+  connectionsButton.addEventListener('click', () => {
+    if (!cleanLogin || cleanLogin === 'unknown') return;
+    navigate(makeProfileLinksRoute(cleanLogin));
+  });
+
+  avatarButton.addEventListener('click', () => {
+    if (!cleanLogin || cleanLogin === 'unknown') return;
+    navigate(makeProfileRoute(cleanLogin));
+  });
+
+  return { centerNode: loginEl, avatarButton, connectionsButton };
 }
 
 function truncatePreviewText(value, maxLen = 72) {
@@ -293,7 +318,6 @@ function openChatActionsMenu({
   anchorY = 0,
   onCall,
   onVideoCall,
-  onInstantVideoCall,
   onClearHistory,
   onDeleteChat,
 }) {
@@ -305,8 +329,7 @@ function openChatActionsMenu({
     <div class="dm-floating-menu-layer" id="chat-header-actions-layer">
       <div class="modal-card stack dm-message-actions-menu dm-message-actions-popover" id="${menuId}">
         <button class="secondary-btn dm-message-action-btn" type="button" id="chat-menu-call">Звонок</button>
-        <button class="secondary-btn dm-message-action-btn" type="button" id="chat-menu-video-call">Звонок с поддержкой видео</button>
-        <button class="secondary-btn dm-message-action-btn" type="button" id="chat-menu-instant-video-call">Видеозвонок</button>
+        <button class="secondary-btn dm-message-action-btn" type="button" id="chat-menu-video-call">Видеозвонок</button>
         <button class="secondary-btn dm-message-action-btn" type="button" id="chat-menu-clear-history">Очистить историю</button>
         <button class="secondary-btn dm-message-action-btn dm-message-action-btn--danger" type="button" id="chat-menu-delete-chat">Удалить чат</button>
       </div>
@@ -358,10 +381,6 @@ function openChatActionsMenu({
     close();
     if (typeof onVideoCall === 'function') await onVideoCall();
   });
-  root.querySelector('#chat-menu-instant-video-call')?.addEventListener('click', async () => {
-    close();
-    if (typeof onInstantVideoCall === 'function') await onInstantVideoCall();
-  });
   root.querySelector('#chat-menu-clear-history')?.addEventListener('click', async () => {
     close();
     if (typeof onClearHistory === 'function') await onClearHistory();
@@ -993,7 +1012,7 @@ export function render({ navigate, route, chrome }) {
   const log = document.createElement('div');
   log.className = 'messages-log dm-messages-log';
 
-  const chatHeaderParts = createChatHeaderParts(chatId);
+  const chatHeaderParts = createChatHeaderParts(chatId, navigate);
   const chatHeader = renderHeader({
       centerNode: chatHeaderParts.centerNode,
       leftAction: { label: '←', onClick: () => navigate('messages-list') },
@@ -1016,7 +1035,6 @@ export function render({ navigate, route, chrome }) {
               anchorY: Number(event?.currentTarget?.getBoundingClientRect?.().bottom || event?.clientY || 0),
               onCall: () => handleStartCall('audio'),
               onVideoCall: () => handleStartCall('video'),
-              onInstantVideoCall: () => handleStartCall('instant_video'),
               onClearHistory: async () => {
                 openChatConfirmModal({
                   title: 'Очистить историю?',
@@ -1064,7 +1082,8 @@ export function render({ navigate, route, chrome }) {
         },
       ],
     });
-  chatHeader.querySelector('.header-left')?.append(chatHeaderParts.avatarSlot);
+  const chatHeaderLeft = chatHeader.querySelector('.header-left');
+  chatHeaderLeft?.append(chatHeaderParts.connectionsButton, chatHeaderParts.avatarButton);
   chrome?.setTopbar(chatHeader);
 
   if (!isKnownContact) {

shine-UI/js/pages/messages-list.js

@@ -8,6 +8,7 @@ import {
 } from '../state.js';
 import { renderUserAvatar } from '../components/avatar-image.js';
 import { createOverflowDots } from '../components/overflow-dots.js';
+import { createShineConnectionsLogo } from '../components/shine-logo.js';
 import { loadProfileSnapshot } from '../services/user-profile-params.js';
 import { parseDmTechBlocks } from '../services/dm-tech-blocks.js';
 
@@ -167,15 +168,11 @@ function compareChatRows(a, b) {
 export function render({ navigate, chrome }) {
   const screen = document.createElement('section');
   screen.className = 'stack dm-screen dm-list-screen';
-  const login = String(state.session.login || '').trim();
   const head = document.createElement('header');
   head.className = 'dm-head';
   head.innerHTML = `
     <div class="dm-head-brand">
-      <div class="dm-head-hex">${(login[0] || 'A').toUpperCase()}</div>
-      <div class="dm-head-id">
-        <span class="dm-head-name"></span>
-      </div>
+      <span class="dm-head-logo-wrap" aria-hidden="true"></span>
     </div>
     <h1 class="dm-head-title">Чаты</h1>
     <div class="dm-head-menu-wrap">
@@ -191,6 +188,9 @@ export function render({ navigate, chrome }) {
       </div>
     </div>
   `;
+  head.querySelector('.dm-head-logo-wrap')?.append(
+    createShineConnectionsLogo({ className: 'dm-head-logo' }),
+  );
   const menuButton = head.querySelector('.dm-head-menu-btn');
   menuButton?.append(createOverflowDots());
 

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

@@ -1,5 +1,5 @@
 import { profile } from '../mock-data.js';
-import { state } from '../state.js';
+import { authService, state } from '../state.js';
 import {
   PROFILE_GENDER_FEMALE,
   PROFILE_GENDER_MALE,
@@ -223,6 +223,12 @@ export function render({ navigate, chrome }) {
   let currentToggles = [];
   let currentGender = 'unknown';
   let currentAvatar = { value: '', source: '', txId: '', sha256Hex: '', timeMs: 0 };
+  let currentStats = {
+    ownedPublicChannelsCount: 0,
+    followingUsersCount: 0,
+    followingChannelsCount: 0,
+    closeFriendsCount: 0,
+  };
 
   function syncIdentity() {
     if (!identityEl) return;
@@ -269,6 +275,21 @@ export function render({ navigate, chrome }) {
     updateToggleButton(shineBtn, 'Сияющий', shine.enabled);
   }
 
+  function renderStats() {
+    const stats = [
+      { label: 'Собственные публичные каналы', value: currentStats.ownedPublicChannelsCount },
+      { label: 'Подписки на пользователей', value: currentStats.followingUsersCount },
+      { label: 'Подписки на каналы', value: currentStats.followingChannelsCount },
+      { label: 'Близкие друзья', value: currentStats.closeFriendsCount },
+    ];
+    stats.forEach((stat) => {
+      const row = document.createElement('div');
+      row.className = 'card profile-param-item row';
+      row.innerHTML = `<div class="profile-param-value"><b>${escapeHtml(stat.label)}</b>: ${escapeHtml(String(Number(stat.value || 0)))}</div>`;
+      listWrap.append(row);
+    });
+  }
+
   officialBtn?.classList.add('profile-badge-trigger');
   shineBtn?.classList.add('profile-badge-trigger');
   officialBtn?.addEventListener('click', () => {
@@ -286,6 +307,7 @@ export function render({ navigate, chrome }) {
 
   function renderFields(fields) {
     listWrap.innerHTML = '';
+    renderStats();
     fields.forEach((field) => {
       const row = document.createElement('div');
       row.className = 'card profile-param-item row';
@@ -317,6 +339,12 @@ export function render({ navigate, chrome }) {
       ];
       currentGender = 'unknown';
       currentAvatar = { value: '', source: '', txId: '', sha256Hex: '', timeMs: 0 };
+      currentStats = {
+        ownedPublicChannelsCount: 0,
+        followingUsersCount: 0,
+        followingChannelsCount: 0,
+        closeFriendsCount: 0,
+      };
       syncIdentity();
       updateAvatarUi();
       updateTogglesUi();
@@ -325,11 +353,20 @@ export function render({ navigate, chrome }) {
     }
 
     try {
-      const snapshot = await loadProfileSnapshot(login);
+      const [snapshot, user] = await Promise.all([
+        loadProfileSnapshot(login),
+        authService.getUser(login).catch(() => ({})),
+      ]);
       currentFields = Array.isArray(snapshot.fields) ? snapshot.fields : [];
       currentToggles = Array.isArray(snapshot.toggles) ? snapshot.toggles : [];
       currentGender = snapshot.gender || 'unknown';
       currentAvatar = snapshot.avatar || { value: '', source: '', txId: '', sha256Hex: '', timeMs: 0 };
+      currentStats = {
+        ownedPublicChannelsCount: Number(user?.ownedPublicChannelsCount || 0),
+        followingUsersCount: Number(user?.followingUsersCount || 0),
+        followingChannelsCount: Number(user?.followingChannelsCount || 0),
+        closeFriendsCount: Number(user?.closeFriendsCount || 0),
+      };
       syncIdentity();
       updateAvatarUi();
       updateTogglesUi();

shine-UI/js/router.js

@@ -26,6 +26,7 @@ const PRETTY_PATHS = new Map([
   ['add-channel-view', 'channels/new'],
   ['add-personal-public-chat-view', 'channels/new-public-chat'],
   ['channel-view', 'channel'],
+  ['channel-about-view', 'channel/about'],
   ['channel-thread-view', 'thread'],
   ['network-view', 'network'],
   ['notifications-view', 'notifications'],
@@ -52,6 +53,10 @@ const PRETTY_PATHS = new Map([
   ['remote-addblock-session-view', 'remote-addblock-session'],
 ]);
 
+function looksLikeBlockchainName(value) {
+  return /^.+-\d+$/.test(String(value || '').trim());
+}
+
 export const PRE_AUTH_PAGES = [
   'start-view',
   'entry-settings-view',
@@ -162,6 +167,34 @@ export function parseRouteFromPath(pathname = '') {
     }
   }
 
+  if (segments.length >= 2 && looksLikeBlockchainName(segments[0])) {
+    const ownerBlockchainName = decodePart(segments[0]);
+    const channelName = decodePart(segments[1] || '');
+    const sub = decodePart(segments[2] || '').toLowerCase();
+    if (ownerBlockchainName && channelName) {
+      if (sub === 'about') {
+        return {
+          pageId: 'channel-about-view',
+          params: {
+            ownerBlockchainName,
+            channelRootBlockNumber: '',
+            channelRootBlockHash: '',
+            channelId: '',
+            channelName,
+          },
+        };
+      }
+      return {
+        pageId: 'channel-view',
+        params: {
+          ownerBlockchainName,
+          channelName,
+          channelId: '',
+        },
+      };
+    }
+  }
+
   if (pageId === 'chat' || pageId === 'chat-view') {
     return { pageId: 'chat-view', params: { chatId: dynamicId ? decodeURIComponent(dynamicId) : '' } };
   }
@@ -225,6 +258,17 @@ export function parseRouteFromPath(pathname = '') {
   }
 
   if (pageId === 'channel') {
+    if (segments.length >= 5 && decodePart(segments[4] || '').toLowerCase() === 'about') {
+      return {
+        pageId: 'channel-about-view',
+        params: {
+          ownerBlockchainName: decodePart(segments[1]),
+          channelRootBlockNumber: segments[2] || '',
+          channelRootBlockHash: segments[3] || '',
+          channelId: '',
+        },
+      };
+    }
     if (segments.length >= 4) {
       return {
         pageId: 'channel-view',
@@ -408,7 +452,7 @@ export function resolveToolbarActive(pageId) {
     pageId === 'solana-users-init-view'
   ) return 'profile-view';
   if (pageId === 'chat-view' || pageId === 'contact-search-view') return 'messages-list';
-  if (pageId === 'channel-view' || pageId === 'channel-thread-view' || pageId === 'add-channel-view' || pageId === 'add-personal-public-chat-view') return 'channels-list';
+  if (pageId === 'channel-view' || pageId === 'channel-about-view' || pageId === 'channel-thread-view' || pageId === 'add-channel-view' || pageId === 'add-personal-public-chat-view') return 'channels-list';
   if (pageId === 'user') return 'messages-list';
   return 'profile-view';
 }

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

@@ -153,7 +153,7 @@ function getCallTitleText(mode) {
     return 'Видеозвонок';
   }
   if (normalizeCallMode(mode) === CALL_MODE_VIDEO) {
-    return 'Звонок с поддержкой видео';
+    return 'Видеозвонок';
   }
   return 'Звонок';
 }
@@ -164,7 +164,7 @@ function getIncomingCallStatusText(peerLogin, mode) {
     return `Входящий видеозвонок от ${name}`;
   }
   if (isVideoCallMode(mode)) {
-    return `Вам звонит ${name} (звонок с поддержкой видео)`;
+    return `Входящий видеозвонок от ${name}`;
   }
   return `Вам звонит ${name}`;
 }

shine-UI/js/services/shine-routes.js

@@ -51,6 +51,26 @@ export function makeShineChannelRoute({ ownerLogin = '', ownerBlockchainName = '
   return `${SHINE_ROUTE_SEGMENT}/${encodeRoutePart(ownerBch)}/${encodeRoutePart(chName)}`;
 }
 
+export function makeShineChannelRootRoute({ ownerBlockchainName = '', channelRootBlockNumber = '', channelRootBlockHash = '' }) {
+  const ownerBch = String(ownerBlockchainName || '').trim();
+  const rootNo = String(channelRootBlockNumber || '').trim();
+  const rootHash = String(channelRootBlockHash || '').trim();
+  if (!ownerBch || !rootNo || !rootHash) return '';
+  return `channel/${encodeRoutePart(ownerBch)}/${encodeRoutePart(rootNo)}/${encodeRoutePart(rootHash)}`;
+}
+
+export function makeShineChannelAboutRoute({ ownerBlockchainName = '', channelRootBlockNumber = '', channelRootBlockHash = '' }) {
+  const base = makeShineChannelRootRoute({ ownerBlockchainName, channelRootBlockNumber, channelRootBlockHash });
+  return base ? `${base}/about` : '';
+}
+
+export function makeShineChannelShortRoute({ ownerBlockchainName = '', channelName = '' }) {
+  const ownerBch = String(ownerBlockchainName || '').trim();
+  const chName = String(channelName || '').trim();
+  if (!ownerBch || !chName) return '';
+  return `${encodeRoutePart(ownerBch)}/${encodeRoutePart(chName)}`;
+}
+
 export function makeShineMessageRoute({ ownerLogin = '', messageBlockchainName = '', messageBlockNumber = '' }) {
   const msgBch = String(messageBlockchainName || '').trim();
   const msgNo = String(messageBlockNumber || '').trim();

shine-UI/styles/components.css

@@ -5927,6 +5927,14 @@ textarea.input {
   transform: translateY(-40%);
 }
 
+.channels-screen--channel-about .screen-footer {
+  margin-top: auto;
+  padding: 8px 4px 0;
+  text-align: center;
+  font-size: 12px;
+  letter-spacing: 0.02em;
+}
+
 .entrypoint-history-list {
   display: grid;
   gap: 10px;
@@ -6184,12 +6192,13 @@ textarea.input {
   background: linear-gradient(180deg, rgba(10,12,18,0.82), rgba(10,12,18,0.0));
 }
 .dm-head-brand { display: flex; align-items: center; gap: 8px; min-width: 0; }
-.dm-head-hex {
-  width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center;
-  font-weight: 700; font-size: 15px; color: #1a1205;
-  background: linear-gradient(150deg, #F0B82E, #D49F22);
-  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
-  box-shadow: 0 0 14px rgba(240, 184, 46, 0.35);
+.dm-head-logo-wrap { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; flex: 0 0 auto; }
+.dm-head-logo {
+  width: 36px;
+  height: 36px;
+  object-fit: contain;
+  display: block;
+  filter: drop-shadow(0 0 7px rgba(71, 196, 255, 0.38));
 }
 .dm-head-id { min-width: 0; display: grid; }
 .dm-head-name { font-size: 15px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@@ -9100,6 +9109,66 @@ body.chat-topbar-overlay .app-shell.keyboard-open .scroll-to-bottom-btn {
   gap: 0;
 }
 
+.chat-header-connections-btn,
+.chat-header-avatar-btn {
+  padding: 0;
+  min-width: 0;
+  min-height: 0;
+  border: 0;
+  background: transparent;
+  box-shadow: none;
+  transform: none;
+}
+
+.chat-header-connections-btn:hover,
+.chat-header-connections-btn:active,
+.chat-header-connections-btn:focus,
+.chat-header-connections-btn:focus-visible,
+.chat-header-avatar-btn:hover,
+.chat-header-avatar-btn:active,
+.chat-header-avatar-btn:focus,
+.chat-header-avatar-btn:focus-visible {
+  border: 0;
+  background: transparent;
+  box-shadow: none;
+  transform: none;
+}
+
+.chat-header-connections-btn {
+  width: 38px;
+  height: 38px;
+  border-radius: 999px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(8, 17, 31, 0.65);
+  border: 1px solid rgba(97, 198, 255, 0.26);
+  box-shadow: 0 0 0 1px rgba(97, 198, 255, 0.08), 0 0 12px rgba(64, 172, 255, 0.18);
+}
+
+.chat-header-connections-btn:hover,
+.chat-header-connections-btn:focus-visible {
+  border-color: rgba(111, 208, 255, 0.38);
+  box-shadow: 0 0 0 1px rgba(111, 208, 255, 0.16), 0 0 16px rgba(64, 172, 255, 0.28);
+}
+
+.chat-header-connections-logo {
+  width: 24px;
+  height: 24px;
+  object-fit: contain;
+  display: block;
+}
+
+.chat-header-avatar-btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.chat-header-avatar-btn .chat-header-avatar-slot {
+  display: inline-flex;
+}
+
 /* Пузырям сообщений не нужна отдельная обводка: направление читается по фону и геометрии. */
 .dm-chat-screen .bubble,
 .dm-chat-screen .bubble.in,