Initial commit: JustAMessenger v0.1.0

Серверная часть (Go): - WebSocket сервер с бинарным протоколом - XChaCha20-Poly1305 шифрование - zstd сжатие с дедупликацией (64KB чанки) - SQLite хранилище (WAL режим) - Управление гильдиями, каналами, ролями - Федерация между серверами (ed25519) - REST API + WebSocket endpoints Клиентская часть (Flutter): - Material Design 3 тёмная тема (Discord-like) - WebSocket соединение с сервером - Экраны: сплэш, логин, домашний, гильдии, чат - Модели: пользователи, гильдии, каналы, сообщения, роли - Сервисы: соединение, API, криптография, тема - Виджеты: иконки гильдий, сообщения, ввод чата - Web сборка (PWA) Документация: - AGENTS.md — контекст для ИИ ассистентов - docs/protocol.md — спецификация протокола
2026-06-06 22:39:14 +00:00
commit 096c4d0a2d
40 changed files with 5054 additions and 0 deletions
@@ -0,0 +1,180 @@
+package role
+
+import (
+	"encoding/json"
+	"errors"
+
+	"github.com/google/uuid"
+	"github.com/justamessenger/server/internal/database"
+	"github.com/justamessenger/server/internal/models"
+)
+
+type Manager struct {
+	db *database.DB
+}
+
+func NewManager(db *database.DB) *Manager {
+	return &Manager{db: db}
+}
+
+var DefaultPermissions = []string{
+	"view_channels",
+	"send_messages",
+	"add_reactions",
+	"read_message_history",
+	"connect_voice",
+	"speak",
+}
+
+var AdminPermissions = []string{
+	"administrator",
+	"manage_guild",
+	"manage_channels",
+	"manage_roles",
+	"manage_messages",
+	"kick_members",
+	"ban_members",
+	"view_channels",
+	"send_messages",
+	"add_reactions",
+	"read_message_history",
+	"connect_voice",
+	"speak",
+	"mute_members",
+	"deafen_members",
+	"move_members",
+	"stream",
+}
+
+func (m *Manager) CreateDefaultRoles(guildID string) error {
+	_, err := m.db.Exec(
+		`INSERT OR IGNORE INTO roles (id, guild_id, name, color, position, permissions, is_default)
+		 VALUES (?, ?, 'everyone', 0, 0, ?, 1)`,
+		uuid.New().String(), guildID, mustJSON(DefaultPermissions),
+	)
+	return err
+}
+
+func mustJSON(v interface{}) string {
+	b, _ := json.Marshal(v)
+	return string(b)
+}
+
+func (m *Manager) Create(guildID, name string, color, position int, permissions []string) (*models.Role, error) {
+	id := uuid.New().String()
+	permJSON, _ := json.Marshal(permissions)
+	_, err := m.db.Exec(
+		`INSERT INTO roles (id, guild_id, name, color, position, permissions)
+		 VALUES (?, ?, ?, ?, ?, ?)`,
+		id, guildID, name, color, position, string(permJSON),
+	)
+	if err != nil {
+		return nil, err
+	}
+	return m.Get(id)
+}
+
+func (m *Manager) Get(id string) (*models.Role, error) {
+	row := m.db.QueryRow(
+		`SELECT id, guild_id, name, color, position, permissions, is_default
+		 FROM roles WHERE id = ?`, id,
+	)
+	r := &models.Role{}
+	var permJSON string
+	err := row.Scan(&r.ID, &r.GuildID, &r.Name, &r.Color, &r.Position, &permJSON, &r.IsDefault)
+	if err != nil {
+		return nil, err
+	}
+	json.Unmarshal([]byte(permJSON), &r.Permissions)
+	return r, nil
+}
+
+func (m *Manager) ListByGuild(guildID string) ([]*models.Role, error) {
+	rows, err := m.db.Query(
+		`SELECT id, guild_id, name, color, position, permissions, is_default
+		 FROM roles WHERE guild_id = ? ORDER BY position DESC`, guildID,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var roles []*models.Role
+	for rows.Next() {
+		r := &models.Role{}
+		var permJSON string
+		if err := rows.Scan(&r.ID, &r.GuildID, &r.Name, &r.Color, &r.Position, &permJSON, &r.IsDefault); err != nil {
+			return nil, err
+		}
+		json.Unmarshal([]byte(permJSON), &r.Permissions)
+		roles = append(roles, r)
+	}
+	return roles, nil
+}
+
+func (m *Manager) AssignRole(roleID, userID string) error {
+	_, err := m.db.Exec(
+		`INSERT OR IGNORE INTO role_members (role_id, user_id) VALUES (?, ?)`,
+		roleID, userID,
+	)
+	return err
+}
+
+func (m *Manager) RemoveRole(roleID, userID string) error {
+	result, err := m.db.Exec(
+		`DELETE FROM role_members WHERE role_id = ? AND user_id = ?`,
+		roleID, userID,
+	)
+	if err != nil {
+		return err
+	}
+	affected, _ := result.RowsAffected()
+	if affected == 0 {
+		return errors.New("role assignment not found")
+	}
+	return nil
+}
+
+func (m *Manager) GetUserRoles(guildID, userID string) ([]*models.Role, error) {
+	rows, err := m.db.Query(
+		`SELECT r.id, r.guild_id, r.name, r.color, r.position, r.permissions, r.is_default
+		 FROM roles r
+		 INNER JOIN role_members rm ON r.id = rm.role_id
+		 WHERE r.guild_id = ? AND rm.user_id = ?
+		 UNION
+		 SELECT id, guild_id, name, color, position, permissions, is_default
+		 FROM roles WHERE guild_id = ? AND is_default = 1
+		 ORDER BY position DESC`, guildID, userID, guildID,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var roles []*models.Role
+	for rows.Next() {
+		r := &models.Role{}
+		var permJSON string
+		if err := rows.Scan(&r.ID, &r.GuildID, &r.Name, &r.Color, &r.Position, &permJSON, &r.IsDefault); err != nil {
+			return nil, err
+		}
+		json.Unmarshal([]byte(permJSON), &r.Permissions)
+		roles = append(roles, r)
+	}
+	return roles, nil
+}
+
+func (m *Manager) HasPermission(guildID, userID, permission string) (bool, error) {
+	roles, err := m.GetUserRoles(guildID, userID)
+	if err != nil {
+		return false, err
+	}
+	for _, r := range roles {
+		for _, p := range r.Permissions {
+			if p == "administrator" || p == permission {
+				return true, nil
+			}
+		}
+	}
+	return false, nil
+}