Initial commit

src/application/contracts/__init__.py

@@ -0,0 +1,6 @@
+from src.application.contracts.i_logger import ILogger
+from src.application.contracts.i_jwt_service import IJwtService
+from src.application.contracts.i_csrf_service import ICsrfService
+from src.application.contracts.i_cache import ICache
+from src.application.contracts.i_hash_service import IHashService
+from src.application.contracts.i_queue_messanger import IQueueMessanger

src/application/contracts/i_cache.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+from abc import ABC, abstractmethod
+from src.application.domain.entities.user import UserEntity
+
+
+class ICache(ABC):
+
+    @abstractmethod
+    async def set(self, key: str, value: str, ttl: int) -> bool:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def set_nx(self, key: str, value: str, ttl: int) -> bool:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def get(self, key: str) -> str | None:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def delete(self, key: str) -> bool:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def get_user(self, user_id: str) -> dict | None:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def set_user(self, user_id: str, user: UserEntity, ttl: int = 300) -> None:
+        raise NotImplementedError

src/application/contracts/i_csrf_service.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+from abc import ABC, abstractmethod
+from typing import Any, Optional, Mapping
+
+
+class ICsrfService(ABC):
+    @abstractmethod
+    def issue(self, subject: Optional[str] = None) -> str:
+        raise NotImplementedError
+
+    @abstractmethod
+    def verify(self, token: str, expected_subject: Optional[str] = None) -> dict[str, Any]:
+        raise NotImplementedError
+
+    @abstractmethod
+    def extract(self, cookies: Mapping[str, str], headers: Mapping[str, str]) -> tuple[Optional[str], Optional[str]]:
+        raise NotImplementedError
+
+    @abstractmethod
+    def verify_pair(
+        self,
+        cookie_token: Optional[str],
+        header_token: Optional[str],
+        expected_subject: Optional[str] = None,
+    ) -> None:
+        raise NotImplementedError

src/application/contracts/i_hash_service.py

@@ -0,0 +1,12 @@
+from abc import ABC, abstractmethod
+
+
+class IHashService(ABC):
+
+    @abstractmethod
+    async def hash(self, value: str) -> str:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def verify(self, hashed_value: str, plain_value: str) -> bool:
+        raise NotImplementedError

src/application/contracts/i_jwt_service.py

@@ -0,0 +1,10 @@
+from __future__ import annotations
+from abc import ABC, abstractmethod
+from src.application.domain.dto import AccessTokenPayload
+
+
+class IJwtService(ABC):
+
+    @abstractmethod
+    async def decode_access_token(self, token: str) -> AccessTokenPayload:
+        raise NotImplementedError

src/application/contracts/i_logger.py

@@ -0,0 +1,68 @@
+from typing import Protocol, Optional, Callable
+from src.application.domain.enums.log_format import LogFormat
+from src.application.domain.enums.log_level import LogLevel
+
+
+class ILogger(Protocol):
+    """Interface for synchronous logger with ContextVar support for trace_id."""
+
+    log_format: LogFormat
+    min_level: LogLevel
+    id_generator: Optional[Callable[[], str]]
+    instance_id: str
+
+    def set_format(self, log_format: LogFormat) -> None:
+        """Set log format using LogFormat enum"""
+        ...
+
+    def set_min_level(self, level: LogLevel) -> None:
+        """Set minimum log level"""
+        ...
+
+    def new_trace_id(self) -> str:
+        """Create and set new trace_id in context"""
+        ...
+
+    def set_trace_id(self, trace_id: str) -> None:
+        """Set existing trace_id in context"""
+        ...
+
+    def get_trace_id(self) -> str:
+        """Get current trace_id from context"""
+        ...
+
+    def clear_trace_id(self) -> None:
+        """Clear the trace_id in the context"""
+        ...
+
+    def set_instance_id(self, instance_id: str) -> None:
+        """Set service instance id (ULID recommended)"""
+        ...
+
+    def get_instance_id(self) -> str:
+        """Get current service instance id"""
+        ...
+
+    def debug(self, message: str) -> None:
+        """Log debug message"""
+        ...
+
+    def info(self, message: str) -> None:
+        """Log info message"""
+        ...
+
+    def warning(self, message: str) -> None:
+        """Log warning message"""
+        ...
+
+    def error(self, message: str) -> None:
+        """Log error message"""
+        ...
+
+    def critical(self, message: str) -> None:
+        """Log critical message"""
+        ...
+
+    def exception(self, message: str) -> None:
+        """Log exception with traceback"""
+        ...

src/application/contracts/i_queue_messanger.py

@@ -0,0 +1,40 @@
+from abc import ABC, abstractmethod
+from typing import Mapping, Any
+
+
+class IQueueMessanger(ABC):
+
+    @abstractmethod
+    async def connect(self) -> None:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def close(self) -> None:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def publish_to_queue(
+            self,
+            queue: str,
+            message: Any,
+            *,
+            persist: bool = True,
+            headers: Mapping[str, Any] | None = None,
+            correlation_id: str | None = None,
+            message_id: str | None = None,
+    ) -> None:
+        raise NotImplementedError
+
+    @abstractmethod
+    async def publish(
+            self,
+            message: Any,
+            *,
+            exchange: str,
+            routing_key: str,
+            persist: bool = True,
+            headers: Mapping[str, Any] | None = None,
+            correlation_id: str | None = None,
+            message_id: str | None = None,
+    ) -> None:
+        raise NotImplementedError

src/application/domain/dto/__init__.py

@@ -0,0 +1,2 @@
+from src.application.domain.dto.token import AccessTokenPayload, AuthContext
+from src.application.domain.dto.keys import JwtPublicKey, JwtPublicKeySet

src/application/domain/dto/keys.py

@@ -0,0 +1,20 @@
+from dataclasses import dataclass
+from typing import Optional, Dict
+
+
+@dataclass(frozen=True)
+class JwtPublicKey:
+    kid: str
+    public_key_pem: str
+
+
+@dataclass(frozen=True)
+class JwtPublicKeySet:
+    active: JwtPublicKey
+    previous: Optional[JwtPublicKey] = None
+
+    def public_keys_by_kid(self) -> Dict[str, str]:
+        out = {self.active.kid: self.active.public_key_pem}
+        if self.previous:
+            out[self.previous.kid] = self.previous.public_key_pem
+        return out

src/application/domain/dto/token.py

@@ -0,0 +1,18 @@
+from pydantic import BaseModel
+
+
+class AccessTokenPayload(BaseModel):
+    sub: str
+    type: str
+    sid: str
+    iat: int
+    nbf: int
+    exp: int
+    iss: str | None = None
+    aud: str | None = None
+
+
+class AuthContext(BaseModel):
+    user_id: str
+    sid: str
+    token: AccessTokenPayload

src/application/domain/entities/__init__.py

@@ -0,0 +1,5 @@
+from src.application.domain.entities.user import UserEntity
+from src.application.domain.entities.session import SessionEntity
+
+
+__all__ = ['UserEntity', 'SessionEntity']

src/application/domain/entities/session.py

@@ -0,0 +1,20 @@
+from __future__ import annotations
+from dataclasses import dataclass
+from datetime import datetime
+
+
+@dataclass(slots=True)
+class SessionEntity:
+    sid: str
+    user_id: str
+    device_id: str
+
+    revoked_at: datetime | None
+    last_seen_at: datetime
+
+    refresh_jti_hash: str | None
+    refresh_expires_at: datetime | None
+
+    user_agent: str | None = None
+    first_ip: str | None = None
+    last_ip: str | None = None

src/application/domain/entities/user.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+from dataclasses import dataclass
+from datetime import date, datetime
+
+
+@dataclass(slots=True)
+class UserEntity:
+    id: str | None = None
+    email: str | None = None
+    password_hash: str | None = None
+
+    first_name: str | None = None
+    middle_name: str | None = None
+    last_name: str | None = None
+    birth_date: date | None = None
+
+    crypto_wallet: str | None = None
+    phone: str | None = None
+
+    bik: str | None = None
+    account_number: str | None = None
+    card_number: str | None = None
+    inn: str | None = None
+
+    kyc_verified: bool | None = None
+    is_deleted: bool | None = None
+
+    created_at: datetime | None = None
+    updated_at: datetime | None = None
+    kyc_verified_at: datetime | None = None

src/application/domain/enums/__init__.py

@@ -0,0 +1,2 @@
+from src.application.domain.enums.log_level import LogLevel
+from src.application.domain.enums.log_format import LogFormat

src/application/domain/enums/log_format.py

@@ -0,0 +1,7 @@
+from enum import Enum
+
+
+class LogFormat(Enum):
+    """Enum for supported log formats"""
+    TEXT = 'text'
+    JSON = 'json'

src/application/domain/enums/log_level.py

@@ -0,0 +1,54 @@
+from enum import Enum
+
+
+class LogLevel(Enum):
+    DEBUG = 10
+    INFO = 20
+    WARNING = 30
+    ERROR = 40
+    CRITICAL = 50
+    EXCEPTION = 60
+
+    def __str__(self) -> str:
+        return self.name
+
+    def __repr__(self) -> str:
+        return f"[{self.value}, '{self.name}']"
+
+    def __eq__(self, other: object) -> bool:
+        if isinstance(other, LogLevel):
+            return self.value == other.value
+        if isinstance(other, int):
+            return self.value == other
+        return NotImplemented
+
+    def __ne__(self, other: object) -> bool:
+        return not self.__eq__(other)
+
+    def __lt__(self, other: object) -> bool:
+        if isinstance(other, LogLevel):
+            return self.value < other.value
+        if isinstance(other, int):
+            return self.value < other
+        return NotImplemented
+
+    def __le__(self, other: object) -> bool:
+        if isinstance(other, LogLevel):
+            return self.value <= other.value
+        if isinstance(other, int):
+            return self.value <= other
+        return NotImplemented
+
+    def __gt__(self, other: object) -> bool:
+        if isinstance(other, LogLevel):
+            return self.value > other.value
+        if isinstance(other, int):
+            return self.value > other
+        return NotImplemented
+
+    def __ge__(self, other: object) -> bool:
+        if isinstance(other, LogLevel):
+            return self.value >= other.value
+        if isinstance(other, int):
+            return self.value >= other
+        return NotImplemented

src/application/domain/exceptions/__init__.py

@@ -0,0 +1 @@
+from src.application.domain.exceptions.application_exceptions import ApplicationException

src/application/domain/exceptions/application_exceptions.py

@@ -0,0 +1,18 @@
+from __future__ import annotations
+from typing import Mapping
+
+
+class ApplicationException(Exception):
+    def __init__(
+        self,
+        status_code: int,
+        message: str,
+        headers: Mapping[str, str] | None = None,
+    ):
+        super().__init__(message)
+        self.status_code = status_code
+        self.message = message
+        self.headers = headers
+
+    def __str__(self):
+        return f"{self.status_code}: {self.message}"

src/command/create_order_command.py

@@ -0,0 +1,29 @@
+from src.infrastructure.database.decorators import transactional
+from src.presentation.schemas.order import CreateOrder
+
+
+class UserLoginStartCommand:
+    def __init__(
+        self,
+        hash_service: IHashService,
+        cache: ICache,
+        unit_of_work: IUnitOfWork,
+        logger: ILogger,
+        messanger: IQueueMessanger,
+    ):
+        self._hash_service = hash_service
+        self._unit_of_work = unit_of_work
+        self._cache = cache
+        self._logger = logger
+        self._messanger = messanger
+
+
+    @transactional
+    async def __call__(self, payment_data: CreateOrder) -> bool:
+
+
+        metadata: dict = {
+            'user_id': str(payment_data.user_id),
+        }
+
+

src/infrastructure/cache/__init__.py

@@ -0,0 +1,2 @@
+from src.infrastructure.cache.client import create_redis_client
+from src.infrastructure.cache.keydb_client import KeydbCache

src/infrastructure/cache/client.py

@@ -0,0 +1,16 @@
+import redis.asyncio as redis
+from redis.asyncio.client import Redis
+from src.infrastructure.config import settings
+
+
+def create_redis_client() -> Redis:
+    return redis.from_url(
+        settings.REDIS_URL,
+        max_connections=50,
+        decode_responses=True,
+        socket_timeout=5,
+        socket_connect_timeout=5,
+        health_check_interval=30,
+        retry_on_timeout=True,
+        socket_keepalive=True,
+    )

src/infrastructure/cache/keydb_client.py

@@ -0,0 +1,52 @@
+from __future__ import annotations
+import orjson
+from redis.asyncio.client import Redis
+from src.application.contracts import ICache
+from src.application.domain.entities.user import UserEntity
+
+
+class KeydbCache(ICache):
+    USER_PREFIX = 'user:me'
+
+    def __init__(self, redis_client: Redis):
+        self._r = redis_client
+
+    async def set(self, key: str, value: str, ttl: int) -> bool:
+        return bool(await self._r.set(key, value, ex=ttl))
+
+    async def set_nx(self, key: str, value: str, ttl: int) -> bool:
+        return bool(await self._r.set(key, value, ex=ttl, nx=True))
+
+    async def get(self, key: str) -> str | None:
+        return await self._r.get(key)
+
+    async def delete(self, key: str) -> bool:
+        return (await self._r.delete(key)) > 0
+
+    async def get_user(self, user_id: str) -> dict | None:
+        raw = await self._r.get(f'{self.USER_PREFIX}:{user_id}')
+        if raw is None:
+            return None
+        return orjson.loads(raw)
+
+    async def set_user(self, user_id: str, user: UserEntity, ttl: int = 300) -> None:
+        data = orjson.dumps({
+            'id': user.id,
+            'email': user.email,
+            'first_name': user.first_name,
+            'middle_name': user.middle_name,
+            'last_name': user.last_name,
+            'birth_date': str(user.birth_date) if user.birth_date else None,
+            'crypto_wallet': user.crypto_wallet,
+            'phone': user.phone,
+            'bik': user.bik,
+            'account_number': user.account_number,
+            'card_number': user.card_number,
+            'inn': user.inn,
+            'kyc_verified': user.kyc_verified,
+            'is_deleted': user.is_deleted,
+            'created_at': user.created_at.isoformat() if user.created_at else None,
+            'updated_at': user.updated_at.isoformat() if user.updated_at else None,
+            'kyc_verified_at': user.kyc_verified_at.isoformat() if user.kyc_verified_at else None,
+        })
+        await self._r.set(f'{self.USER_PREFIX}:{user_id}', data, ex=ttl)

src/infrastructure/config/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.config.settings import settings

src/infrastructure/config/settings.py

@@ -0,0 +1,155 @@
+from __future__ import annotations
+
+from functools import lru_cache
+from typing import List, Literal
+import os
+from dotenv import load_dotenv, find_dotenv
+from pydantic import Field, model_validator
+from pydantic_settings import BaseSettings, SettingsConfigDict
+from src.infrastructure.vault import create_hvac_client, read_kv2_secret
+
+env_file = find_dotenv(".env")
+if env_file:
+    load_dotenv(env_file)
+
+
+class Settings(BaseSettings):
+    VAULT_ADDR: str = Field(default="http://localhost:8200")
+    VAULT_TOKEN: str = Field(..., description="Vault token is required")
+    VAULT_MOUNT_POINT: str = Field(default="secrets")
+
+    VAULT_JWT_KID_PATH: str = "jwt/kid"
+    VAULT_JWT_KIDS_PREFIX: str = "jwt/kids"
+    JWT_KEYS_REFRESH_SECONDS: int = 3600
+
+    DATABASE_HOST: str
+    DATABASE_PORT: int = Field(default=5432, ge=1, le=65535)
+    DATABASE_NAME: str
+    DATABASE_USER: str
+    DATABASE_PASSWORD: str
+
+    DATABASE_POOL_SIZE: int = 10
+    DATABASE_MAX_OVERFLOW: int = 20
+    DATABASE_POOL_TIMEOUT: int = 30
+    DATABASE_POOL_RECYCLE: int = 3600
+    DATABASE_ECHO: bool = False
+
+    CSRF_SECRET_KEY: str = Field(
+        default="change-me-change-me-change-me-change-me",
+        min_length=32,
+    )
+
+    CSRF_COOKIE_SECURE: bool = False
+    CSRF_COOKIE_HTTPONLY: bool = True
+    CSRF_COOKIE_SAMESITE: Literal["Lax", "Strict", "None"] = "Lax"
+    CSRF_COOKIE_PATH: str = "/"
+    CSRF_COOKIE_DOMAIN: str | None = None
+
+    DOCS_USERNAME: str = "admin"
+    DOCS_PASSWORD: str = "admin"
+
+    JWT_ACCESS_TTL_SECONDS: int = 15 * 60
+    JWT_REFRESH_TTL_SECONDS: int = 30 * 24 * 60 * 60
+    JWT_ISSUER: str | None = None
+    JWT_AUDIENCE: str | None = None
+    JWT_ALGORITHM: str = "RS256"
+
+    REDIS_HOST: str = "localhost"
+    REDIS_PORT: int = 6379
+    REDIS_PASSWORD: str | None = None
+    REDIS_DB: int = 0
+
+    RABBIT_HOST: str = "localhost"
+    RABBIT_PORT: int = 5672
+    RABBIT_USER: str = "guest"
+    RABBIT_PASSWORD: str = "guest"
+    RABBIT_VHOST: str = "/"
+
+    RABBIT_PUBLISH_PERSIST: bool = True
+    RABBIT_CONNECT_TIMEOUT: int = 5
+    RABBIT_EMAIL_CODE_QUEUE: str = "email.verification_code"
+
+    LOG_LEVEL: Literal["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"] = "INFO"
+    LOG_FORMAT: Literal["JSON", "TEXT"] = "TEXT"
+
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_file_encoding="utf-8",
+        case_sensitive=True,
+        extra="ignore",
+    )
+
+    @model_validator(mode="before")
+    @classmethod
+    def load_from_vault(cls, data: dict):
+        addr = data.get("VAULT_ADDR") or os.getenv("VAULT_ADDR") or "http://localhost:8200"
+        token = data.get("VAULT_TOKEN") or os.getenv("VAULT_TOKEN")
+        mount = data.get("VAULT_MOUNT_POINT") or os.getenv("VAULT_MOUNT_POINT") or "secrets"
+
+        if not token:
+            raise RuntimeError("VAULT_TOKEN is required")
+
+        client = create_hvac_client(url=addr, token=token, timeout=5)
+
+        def safe_read(path: str) -> dict:
+            try:
+                return read_kv2_secret(client=client, mount_point=mount, path=path)
+            except Exception:
+                return {}
+
+        database = safe_read("database")
+        rabbitmq = safe_read("rabbitmq")
+        csrf = safe_read("csrf")
+
+        if database:
+            required = ["HOST", "NAME", "USER", "PASSWORD", "PORT"]
+            missing = [k for k in required if k not in database]
+            if missing:
+                raise RuntimeError(f"Vault database secret missing keys {missing}")
+
+            data["DATABASE_HOST"] = database["HOST"]
+            data["DATABASE_PORT"] = database["PORT"]
+            data["DATABASE_NAME"] = database["NAME"]
+            data["DATABASE_USER"] = database["USER"]
+            data["DATABASE_PASSWORD"] = database["PASSWORD"]
+
+        if rabbitmq:
+            data["RABBIT_HOST"] = rabbitmq.get("HOST", data.get("RABBIT_HOST"))
+            data["RABBIT_PORT"] = rabbitmq.get("PORT", data.get("RABBIT_PORT"))
+            data["RABBIT_USER"] = rabbitmq.get("USER", data.get("RABBIT_USER"))
+            data["RABBIT_PASSWORD"] = rabbitmq.get("PASSWORD", data.get("RABBIT_PASSWORD"))
+            data["RABBIT_VHOST"] = rabbitmq.get("VHOST", data.get("RABBIT_VHOST"))
+
+        if csrf:
+            data["CSRF_SECRET_KEY"] = csrf.get("KEY", data.get("CSRF_SECRET_KEY"))
+
+        return data
+
+    @property
+    def DATABASE_URL(self) -> str:
+        return (
+            f"postgresql+asyncpg://{self.DATABASE_USER}:{self.DATABASE_PASSWORD}"
+            f"@{self.DATABASE_HOST}:{self.DATABASE_PORT}/{self.DATABASE_NAME}"
+        )
+
+    @property
+    def REDIS_URL(self) -> str:
+        auth = f":{self.REDIS_PASSWORD}@" if self.REDIS_PASSWORD else ""
+        return f"redis://{auth}{self.REDIS_HOST}:{self.REDIS_PORT}/{self.REDIS_DB}"
+
+    @property
+    def RABBIT_URL(self) -> str:
+        vhost = "%2F" if self.RABBIT_VHOST == "/" else self.RABBIT_VHOST.lstrip("/")
+        return f"amqp://{self.RABBIT_USER}:{self.RABBIT_PASSWORD}@{self.RABBIT_HOST}:{self.RABBIT_PORT}/{vhost}"
+
+    @property
+    def EXCLUDED_PATHS(self) -> List[str]:
+        return ["/docs", "/redoc", "/openapi.json", "/ping", "/health"]
+
+
+@lru_cache(maxsize=1)
+def get_settings() -> Settings:
+    return Settings()
+
+
+settings = get_settings()

src/infrastructure/context_vars/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.context_vars.trace_id import trace_id_var

src/infrastructure/context_vars/trace_id.py

@@ -0,0 +1,4 @@
+from contextvars import ContextVar
+
+
+trace_id_var: ContextVar[str] = ContextVar('trace_id', default='N/A')

src/infrastructure/database/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.database.unit_of_work import UnitOfWork

src/infrastructure/database/context.py

@@ -0,0 +1,22 @@
+from sqlalchemy.ext.asyncio import async_sessionmaker
+from sqlalchemy.ext.asyncio.engine import create_async_engine
+from sqlalchemy.ext.asyncio.session import AsyncSession
+from typing import AsyncGenerator
+from src.infrastructure.config import settings
+
+
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    pool_size=settings.DATABASE_POOL_SIZE,
+    max_overflow=settings.DATABASE_MAX_OVERFLOW,
+    pool_timeout=settings.DATABASE_POOL_TIMEOUT,
+    pool_recycle=settings.DATABASE_POOL_RECYCLE,
+    echo=settings.DATABASE_ECHO
+)
+
+async_session_maker = async_sessionmaker(engine, expire_on_commit=False, class_=AsyncSession)
+
+
+async def get_session() -> AsyncGenerator[AsyncSession, None]:
+    async with async_session_maker() as session:
+        yield session

src/infrastructure/database/decorators/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.database.decorators.transactional import transactional

src/infrastructure/database/decorators/transactional.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+from functools import wraps
+from typing import Callable, Awaitable, TypeVar, ParamSpec
+
+
+P = ParamSpec("P")
+R = TypeVar("R")
+
+
+def transactional(method: Callable[P, Awaitable[R]]) -> Callable[P, Awaitable[R]]:
+    @wraps(method)
+    async def wrapper(self, *args: P.args, **kwargs: P.kwargs) -> R:
+        async with self._unit_of_work:
+            return await method(self, *args, **kwargs)
+    return wrapper

src/infrastructure/database/models/__init__.py

@@ -0,0 +1,6 @@
+from src.infrastructure.database.models.base import Base
+from src.infrastructure.database.models.user import UserModel
+from src.infrastructure.database.models.sessions import Session
+
+__all__ = ['Base', 'UserModel', 'Session']
+

src/infrastructure/database/models/base.py

@@ -0,0 +1,19 @@
+from sqlalchemy.ext.asyncio import AsyncAttrs
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(AsyncAttrs, DeclarativeBase):
+    __abstract__ = True
+
+    def __repr__(self) -> str:
+        class_name = self.__class__.__name__
+        attributes = ', '.join(f"{col.name}={getattr(self, col.name, None)!r}"
+                               for col in self.__table__.columns)
+        return f"<{class_name}({attributes})>"
+
+    def __str__(self) -> str:
+        class_name = self.__class__.__name__
+        attributes = ', '.join(f"{col.name}={getattr(self, col.name)}"
+                               for col in self.__table__.columns
+                               if getattr(self, col.name) is not None)
+        return f"{class_name}({attributes})"

src/infrastructure/database/models/mixins/__init__.py

@@ -0,0 +1,3 @@
+from src.infrastructure.database.models.mixins.audit import AuditTimestampsMixin
+from src.infrastructure.database.models.mixins.ulid import UlidPrimaryKeyMixin
+from src.infrastructure.database.models.mixins.soft_delete import SoftDeleteMixin

src/infrastructure/database/models/mixins/audit.py

@@ -0,0 +1,16 @@
+from sqlalchemy import DateTime, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+
+class AuditTimestampsMixin:
+    created_at: Mapped[DateTime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+        server_default=func.now(),
+    )
+    updated_at: Mapped[DateTime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+        server_default=func.now(),
+        onupdate=func.now(),
+    )

src/infrastructure/database/models/mixins/soft_delete.py

@@ -0,0 +1,6 @@
+from sqlalchemy import Boolean
+from sqlalchemy.orm import Mapped, mapped_column
+
+
+class SoftDeleteMixin:
+    is_deleted: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default='false', default=False)

src/infrastructure/database/models/mixins/ulid.py

@@ -0,0 +1,8 @@
+from sqlalchemy import String
+from sqlalchemy.orm import Mapped, mapped_column
+from ulid import ULID
+
+
+class UlidPrimaryKeyMixin:
+
+    id: Mapped[str] = mapped_column(String(26), primary_key=True, default=lambda: str(ULID()))

src/infrastructure/database/models/sessions.py

@@ -0,0 +1,50 @@
+from datetime import datetime, timezone
+from sqlalchemy import String, DateTime, ForeignKey, Index
+from sqlalchemy.orm import Mapped, mapped_column
+from ulid import ULID
+from src.infrastructure.database.models import Base
+from src.infrastructure.database.models.mixins import UlidPrimaryKeyMixin, AuditTimestampsMixin
+
+
+class Session(Base, UlidPrimaryKeyMixin, AuditTimestampsMixin):
+    __tablename__ = "sessions"
+
+    sid: Mapped[str] = mapped_column(
+        String(26),
+        unique=True,
+        index=True,
+        nullable=False,
+        default=lambda: str(ULID()),
+    )
+
+    user_id: Mapped[str] = mapped_column(
+        String(26),
+        ForeignKey("users.id", ondelete="CASCADE"),
+        index=True,
+        nullable=False,
+    )
+
+    device_id: Mapped[str] = mapped_column(
+        String(26),
+        nullable=False,
+        index=True,
+    )
+
+    user_agent: Mapped[str | None] = mapped_column(String(500))
+    first_ip: Mapped[str | None] = mapped_column(String(64))
+    last_ip: Mapped[str | None] = mapped_column(String(64))
+
+    last_seen_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+        default=lambda: datetime.now(timezone.utc),
+    )
+
+    revoked_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+
+    refresh_jti_hash: Mapped[str | None] = mapped_column(String(255))
+    refresh_expires_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+
+
+Index("ux_sessions_user_device", Session.user_id, Session.device_id, unique=True)
+Index("ix_sessions_user_active", Session.user_id, Session.revoked_at)

src/infrastructure/database/models/user.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+from sqlalchemy import Boolean, Date, String, DateTime
+from sqlalchemy.orm import Mapped, mapped_column
+from src.infrastructure.database.models.base import Base
+from src.infrastructure.database.models.mixins import UlidPrimaryKeyMixin, AuditTimestampsMixin, SoftDeleteMixin
+
+
+class UserModel(Base, UlidPrimaryKeyMixin, AuditTimestampsMixin, SoftDeleteMixin):
+    __tablename__ = 'users'
+
+    email: Mapped[str] = mapped_column(String(255), nullable=False, unique=True, index=True)
+    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
+
+    last_name: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    first_name: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    middle_name: Mapped[str | None] = mapped_column(String(128), nullable=True)
+    birth_date: Mapped[Date | None] = mapped_column(Date, nullable=True)
+
+    crypto_wallet: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    phone: Mapped[str | None] = mapped_column(String(16), nullable=True)
+
+    bik: Mapped[str | None] = mapped_column(String(9), nullable=True)
+    account_number: Mapped[str | None] = mapped_column(String(20), nullable=True)
+    card_number: Mapped[str | None] = mapped_column(String(19), nullable=True)
+    inn: Mapped[str | None] = mapped_column(String(12), nullable=True)
+
+    kyc_verified: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default='false', default=False)
+    kyc_verified_at: Mapped[DateTime | None] = mapped_column(DateTime(timezone=True), nullable=True)

src/infrastructure/database/repositories/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.database.repositories.user_repository import UserRepository

src/infrastructure/database/repositories/user_repository.py

@@ -0,0 +1,114 @@
+from __future__ import annotations
+from fastapi import status
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.exc import IntegrityError, SQLAlchemyError
+from src.application.contracts import ILogger
+from src.application.domain.exceptions import ApplicationException
+from src.application.abstractions.repositories import IUserRepository
+from src.application.domain.entities import UserEntity
+from src.infrastructure.database.models import UserModel
+
+
+class UserRepository(IUserRepository):
+    def __init__(self, session: AsyncSession, logger: ILogger):
+        self._session = session
+        self._logger = logger
+
+    async def create_user(self, email: str, password_hash: str) -> UserEntity:
+        user = UserModel(email=email, password_hash=password_hash)
+        self._session.add(user)
+        try:
+            await self._session.flush()
+            return UserEntity(
+                id=user.id,
+                email=user.email,
+                created_at=user.created_at,
+                kyc_verified=user.kyc_verified,
+                is_deleted=user.is_deleted
+            )
+
+        except IntegrityError:
+            self._logger.error(f'User already exists with email {user.email}')
+            raise ApplicationException(
+                status_code=status.HTTP_409_CONFLICT,
+                message='User with this email already exists',
+            )
+
+        except SQLAlchemyError as exception:
+            self._logger.exception(str(exception))
+            raise ApplicationException(
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+                message=f'Database error: {str(exception)}',
+            )
+
+    async def get_user_by_email(self, email: str) -> UserEntity:
+        try:
+            stmt = (
+                select(UserModel)
+                .where(
+                    UserModel.email == email,
+                    UserModel.is_deleted.is_(False),
+                )
+            )
+
+            result = await self._session.execute(stmt)
+            user: UserModel | None = result.scalar_one_or_none()
+
+            if user is None:
+                self._logger.warning(f'User not found with email {email}')
+                raise ApplicationException(status_code=status.HTTP_404_NOT_FOUND, message='User not found',)
+
+            return UserEntity(
+                id=user.id,
+                email=user.email,
+                password_hash=user.password_hash,
+                first_name=user.first_name,
+                middle_name=user.middle_name,
+                last_name=user.last_name,
+                birth_date=user.birth_date,
+                crypto_wallet=user.crypto_wallet,
+                phone=user.phone,
+                bik=user.bik,
+                account_number=user.account_number,
+                card_number=user.card_number,
+                inn=user.inn,
+                kyc_verified_at=user.kyc_verified_at,
+                kyc_verified=user.kyc_verified,
+                is_deleted=user.is_deleted,
+                created_at=user.created_at,
+                updated_at=user.updated_at,
+            )
+
+        except ApplicationException:
+            raise
+
+        except SQLAlchemyError as exception:
+            self._logger.exception(str(exception))
+            raise ApplicationException(
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+                message=f'Database error: {str(exception)}',
+            )
+
+    async def exists_by_email(self, email: str) -> bool:
+        try:
+            stmt = (
+                select(UserModel.id)
+                .where(
+                    UserModel.email == email,
+                    UserModel.is_deleted.is_(False),
+                )
+                .limit(1)
+            )
+
+            result = await self._session.execute(stmt)
+            return result.scalar_one_or_none() is not None
+
+        except SQLAlchemyError as exception:
+            self._logger.exception(str(exception))
+            raise ApplicationException(
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+                message=f'Database error: {str(exception)}',
+            )
+
+

src/infrastructure/database/unit_of_work.py

@@ -0,0 +1,42 @@
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
+from src.application.abstractions import IUnitOfWork
+from src.application.abstractions.repositories import IUserRepository, ISessionRepository
+from src.application.contracts import ILogger
+from src.infrastructure.database.repositories import UserRepository, SessionRepository
+
+
+
+class UnitOfWork(IUnitOfWork):
+    def __init__(self, session_factory: async_sessionmaker[AsyncSession], logger: ILogger):
+        self.session_factory = session_factory
+        self._session: AsyncSession = None
+        self._user_repository: IUserRepository = None
+        self._session_repository: ISessionRepository = None
+        self._logger: ILogger = logger
+
+    async def __aenter__(self):
+        self._session = self.session_factory()
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        if exc_type:
+            self._logger.error(str(exc_val))
+            await self._session.rollback()
+            self._logger.error(f'Rollback: str{exc_val})')
+        else:
+            await self._session.flush()
+            await self._session.commit()
+            self._logger.debug('Commit')
+        await self._session.close()
+
+    @property
+    def user_repository(self) -> IUserRepository:
+        if self._user_repository is None:
+            self._user_repository = UserRepository(session=self._session, logger=self._logger)
+        return self._user_repository
+
+    @property
+    def session_repository(self) -> ISessionRepository:
+        if self._session_repository is None:
+            self._session_repository = SessionRepository(session=self._session, logger=self._logger)
+        return self._session_repository

src/infrastructure/logger/__init__.py

@@ -0,0 +1,28 @@
+from src.application.contracts import ILogger
+from src.application.domain.enums import LogFormat
+from src.application.domain.enums import LogLevel
+from src.infrastructure.config.settings import settings
+from src.infrastructure.logger.logger import Logger
+
+log_levels = {
+    'DEBUG': LogLevel.DEBUG,
+    'INFO': LogLevel.INFO,
+    'WARNING': LogLevel.WARNING,
+    'ERROR': LogLevel.ERROR,
+    'CRITICAL': LogLevel.CRITICAL,
+    'EXCEPTION': LogLevel.EXCEPTION,
+}
+
+log_formats = {
+    'JSON': LogFormat.JSON,
+    'TEXT': LogFormat.TEXT,
+}
+
+logger = Logger(
+    min_level=log_levels.get(settings.LOG_LEVEL, LogLevel.INFO),
+    log_format=log_formats.get(settings.LOG_FORMAT, LogFormat.JSON),
+)
+
+
+def get_logger() -> ILogger:
+    return logger

src/infrastructure/logger/logger.py

@@ -0,0 +1,129 @@
+import traceback
+import inspect
+import sys
+import json
+from datetime import datetime
+from typing import Callable, Optional, Any
+from ulid import ULID
+from src.application.contracts import ILogger
+from src.application.domain.enums import LogFormat, LogLevel
+from src.infrastructure.context_vars import trace_id_var
+
+
+class Logger(ILogger):
+    _instance = None
+    __default_format = LogFormat.JSON
+
+    def __new__(cls, *args: Any, **kwargs: Any) -> "Logger":
+        if cls._instance is None:
+            cls._instance = super(Logger, cls).__new__(cls)
+        return cls._instance
+
+    def __init__(
+        self,
+        log_format: LogFormat = __default_format,
+        min_level: LogLevel = LogLevel.INFO,
+        id_generator: Optional[Callable[[], str]] = lambda: str(ULID()),
+        instance_id: str = "N/A",
+    ):
+        self.log_format = log_format
+        self.min_level = min_level
+        self.id_generator = id_generator
+        self.instance_id = instance_id
+
+    def set_instance_id(self, instance_id: str) -> None:
+        self.instance_id = instance_id
+
+    def get_instance_id(self) -> str:
+        return self.instance_id
+
+    def set_format(self, log_format: LogFormat) -> None:
+        if not isinstance(log_format, LogFormat):
+            raise ValueError("Log format must be an instance of LogFormat enum")
+        self.log_format = log_format
+
+    def set_min_level(self, level: LogLevel) -> None:
+        self.min_level = level
+
+    def new_trace_id(self) -> str:
+        trace_id = str(ULID()) if self.id_generator is None else self.id_generator()
+        trace_id_var.set(trace_id)
+        return trace_id
+
+    def set_trace_id(self, trace_id: str) -> None:
+        trace_id_var.set(trace_id)
+
+    def get_trace_id(self) -> str:
+        return trace_id_var.get()
+
+    def clear_trace_id(self) -> None:
+        trace_id_var.set("N/A")
+
+    def _prepare_log_data(self, level: LogLevel, message: str) -> dict[str, Any]:
+        current_frame = inspect.currentframe()
+        if (
+            current_frame
+            and current_frame.f_back
+            and current_frame.f_back.f_back
+            and current_frame.f_back.f_back.f_back
+        ):
+            frame = current_frame.f_back.f_back.f_back
+            filename = frame.f_code.co_filename
+            line_number = frame.f_lineno
+        else:
+            filename = "unknown"
+            line_number = 0
+
+        log_data = {
+            "timestamp": datetime.now().isoformat(),
+            "level": level.name,
+            "instance_id": self.instance_id,
+            "file": filename,
+            "line": line_number,
+            "trace_id": trace_id_var.get(),
+            "message": message,
+        }
+
+        if level == LogLevel.EXCEPTION:
+            log_data["exception"] = traceback.format_exc()
+
+        return log_data
+
+    def _log(self, level: LogLevel, message: str) -> None:
+        if level >= self.min_level:
+            log_data = self._prepare_log_data(level, message)
+
+            if self.log_format == LogFormat.JSON:
+                log_message = json.dumps(log_data, ensure_ascii=False)
+            else:
+                log_message = (
+                    f"{log_data['timestamp']} - {log_data['level']} - "
+                    f"{log_data['instance_id']} - {log_data['trace_id']} - "
+                    f"{log_data['file']}:{log_data['line']} - "
+                    f"{log_data['message']}"
+                )
+                if "exception" in log_data:
+                    log_message += f"\nTraceback:\n{log_data['exception']}"
+
+            self._write(log_message)
+
+    def _write(self, message: str) -> None:
+        sys.stdout.write(message + "\n")
+
+    def debug(self, message: str) -> None:
+        self._log(LogLevel.DEBUG, message)
+
+    def info(self, message: str) -> None:
+        self._log(LogLevel.INFO, message)
+
+    def warning(self, message: str) -> None:
+        self._log(LogLevel.WARNING, message)
+
+    def error(self, message: str) -> None:
+        self._log(LogLevel.ERROR, message)
+
+    def critical(self, message: str) -> None:
+        self._log(LogLevel.CRITICAL, message)
+
+    def exception(self, message: str) -> None:
+        self._log(LogLevel.EXCEPTION, message)

src/infrastructure/security/__init__.py

@@ -0,0 +1,3 @@
+from src.infrastructure.security.jwt import JwtService
+from src.infrastructure.security.csrf import CsrfService
+from src.infrastructure.security.hash import HashService

src/infrastructure/security/csrf.py

@@ -0,0 +1,81 @@
+from __future__ import annotations
+import secrets
+from typing import Any, Optional, Mapping
+from itsdangerous import URLSafeTimedSerializer, SignatureExpired, BadSignature
+from src.application.contracts import ICsrfService
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.config.settings import settings
+
+
+class CsrfService(ICsrfService):
+    COOKIE_NAME = 'csrf_token'
+    HEADER_NAME = 'X-CSRF-Token'
+    SALT = 'csrf'
+    TTL_SECONDS = 3600
+
+    def __init__(self) -> None:
+        self._serializer = URLSafeTimedSerializer(
+            secret_key=settings.CSRF_SECRET_KEY,
+            salt=self.SALT,
+        )
+
+    @property
+    def cookie_name(self) -> str:
+        return self.COOKIE_NAME
+
+    @property
+    def header_name(self) -> str:
+        return self.HEADER_NAME
+
+    @property
+    def ttl_seconds(self) -> int:
+        return self.TTL_SECONDS
+
+    def issue(self, subject: Optional[str] = None) -> str:
+        payload = {
+            'sub': subject,
+            'nonce': secrets.token_urlsafe(32),
+        }
+        return self._serializer.dumps(payload)
+
+    def verify(self, token: str, expected_subject: Optional[str] = None) -> dict[str, Any]:
+        try:
+            data = self._serializer.loads(token, max_age=self.TTL_SECONDS)
+        except SignatureExpired:
+            raise ApplicationException(
+                status_code=403,
+                message='CSRF token expired',
+            )
+        except BadSignature:
+            raise ApplicationException(
+                status_code=403,
+                message='CSRF token invalid',
+            )
+
+        if expected_subject is not None and data.get('sub') != expected_subject:
+            raise ApplicationException(
+                status_code=403,
+                message='CSRF token subject mismatch',
+            )
+
+        return data
+
+    def extract(self, cookies: Mapping[str, str], headers: Mapping[str, str]) -> tuple[Optional[str], Optional[str]]:
+        cookie_token = cookies.get(self.COOKIE_NAME)
+        header_token = headers.get(self.HEADER_NAME)
+        return cookie_token, header_token
+
+    def verify_pair(self, cookie_token: Optional[str], header_token: Optional[str], expected_subject: Optional[str] = None) -> None:
+        if not cookie_token or not header_token:
+            raise ApplicationException(
+                status_code=403,
+                message='CSRF token missing',
+            )
+
+        if not secrets.compare_digest(cookie_token, header_token):
+            raise ApplicationException(
+                status_code=403,
+                message='CSRF token mismatch',
+            )
+
+        self.verify(cookie_token, expected_subject=expected_subject)

src/infrastructure/security/hash.py

@@ -0,0 +1,17 @@
+import bcrypt
+from src.application.contracts import IHashService, ILogger
+
+
+class HashService(IHashService):
+
+    def __init__(self, logger: ILogger):
+        self._logger = logger
+
+    async def hash(self, value: str) -> str:
+        hashed_value = bcrypt.hashpw(value.encode(), bcrypt.gensalt())
+        self._logger.info(f'Hash value {hashed_value.decode()}')
+        return hashed_value.decode()
+
+    async def verify(self, hashed_value: str, plain_value: str) -> bool:
+        self._logger.info(f'Hash value {hashed_value[:10]}')
+        return bcrypt.checkpw(plain_value.encode(), hashed_value.encode())

src/infrastructure/security/jwt.py

@@ -0,0 +1,109 @@
+from __future__ import annotations
+from jose import jwt, ExpiredSignatureError, JWTError
+from src.application.contracts import ILogger, IJwtService
+from src.application.domain.dto import AccessTokenPayload
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.config.settings import settings
+from src.infrastructure.vault import JwtKeyStore
+
+
+class JwtService(IJwtService):
+    def __init__(self, logger: ILogger, key_store: JwtKeyStore) -> None:
+        self._logger = logger
+        self._key_store = key_store
+
+    async def decode_access_token(self, token: str) -> AccessTokenPayload:
+        payload = await self._decode_and_verify(token)
+
+        if payload.get('type') != 'access':
+            self._logger.warning(f'Access token invalid type received_type={payload.get('type')}')
+            raise ApplicationException(status_code=401, message='Invalid token type')
+
+        try:
+            return AccessTokenPayload(
+                sub=str(payload['sub']),
+                type='access',
+                sid=str(payload['sid']),
+                iat=int(payload['iat']),
+                nbf=int(payload['nbf']),
+                exp=int(payload['exp']),
+                iss=payload.get('iss'),
+                aud=payload.get('aud'),
+            )
+        except KeyError as exception:
+            self._logger.warning(f'Access token missing claim error={str(exception)}')
+            raise ApplicationException(status_code=401, message=f'Missing token claim: {exception}')
+
+    async def _decode_and_verify(self, token: str) -> dict:
+        kid: str | None = None
+        try:
+            header = jwt.get_unverified_header(token)
+
+            kid = header.get('kid')
+            if not kid:
+                self._logger.warning(f'JWT header missing kid header={header}')
+                raise ApplicationException(status_code=401, message='Missing token header: kid')
+
+            received_alg = header.get('alg')
+            if received_alg != settings.JWT_ALGORITHM:
+                self._logger.warning(f'JWT invalid algorithm kid={kid} received_alg={received_alg} expected_alg={settings.JWT_ALGORITHM}')
+                raise ApplicationException(status_code=401, message='Invalid token algorithm')
+
+            public_pem = await self._key_store.get_public_key_for_kid(str(kid))
+
+            if not public_pem:
+                self._logger.info(f'JWT kid miss kid={kid} forcing keystore refresh')
+                await self._key_store.refresh()
+                public_pem = await self._key_store.get_public_key_for_kid(str(kid))
+
+            if not public_pem:
+                self._logger.warning(f'JWT unknown kid kid={kid}')
+                raise ApplicationException(status_code=401, message='Unknown token kid')
+
+            options = {
+                'verify_signature': True,
+                'verify_exp': True,
+                'verify_nbf': True,
+                'verify_iat': True,
+                'verify_aud': bool(settings.JWT_AUDIENCE),
+                'verify_iss': bool(settings.JWT_ISSUER),
+                'require_exp': True,
+                'require_iat': True,
+                'require_nbf': True,
+                'require_sub': True,
+                'leeway': 10,
+            }
+
+            payload = jwt.decode(
+                token,
+                public_pem,
+                algorithms=[settings.JWT_ALGORITHM],
+                audience=settings.JWT_AUDIENCE or None,
+                issuer=settings.JWT_ISSUER or None,
+                options=options,
+            )
+
+            if 'sid' not in payload:
+                self._logger.warning(f'JWT missing sid claim kid={kid}')
+                raise ApplicationException(status_code=401, message='Missing token claim: sid')
+
+            if 'type' not in payload:
+                self._logger.warning(f'JWT missing type claim kid={kid}')
+                raise ApplicationException(status_code=401, message='Missing token claim: type')
+
+            return payload
+
+        except ExpiredSignatureError as exception:
+            self._logger.info(f'JWT expired kid={kid} error={str(exception)}')
+            raise ApplicationException(status_code=401, message='Token expired')
+
+        except ApplicationException:
+            raise
+
+        except JWTError as exception:
+            self._logger.warning(f'JWT decode failed kid={kid} error={str(exception)}')
+            raise ApplicationException(status_code=401, message='Invalid token')
+
+        except Exception as exception:
+            self._logger.error(f'Unexpected JWT decode error kid={kid} error={str(exception)}')
+            raise ApplicationException(status_code=500, message='JWT decode failed')

src/infrastructure/utils/__init__.py

@@ -0,0 +1 @@
+from src.infrastructure.utils.instance_id import generate_instance_id

src/infrastructure/utils/instance_id.py

@@ -0,0 +1,14 @@
+from ulid import ULID
+
+
+def generate_instance_id() -> str:
+    """
+    Generate a process-wide instance id in ULID format.
+
+    ULID is 26 chars (Crockford Base32) and lexicographically sortable by time.
+    """
+
+
+    return str(ULID())
+
+

src/infrastructure/vault/__init__.py

@@ -0,0 +1,3 @@
+from src.infrastructure.vault.utils import read_kv2_secret, create_hvac_client
+from src.infrastructure.vault.keys import JwtKeyStore
+from src.infrastructure.vault.scheduler import start_jwt_keys_scheduler

src/infrastructure/vault/keys.py

@@ -0,0 +1,113 @@
+from __future__ import annotations
+import asyncio
+from datetime import datetime, timezone
+from src.application.domain.dto import JwtPublicKeySet, JwtPublicKey
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.vault import create_hvac_client, read_kv2_secret
+
+
+class JwtKeyStore:
+
+    _instance: 'JwtKeyStore | None' = None
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+
+    def __init__(
+        self,
+        *,
+        vault_addr: str,
+        vault_token: str,
+        mount_point: str,
+        kid_path: str = 'jwt/kid',
+        kids_prefix: str = 'jwt/kids',
+        timeout_seconds: int = 5,
+        refresh_ttl_seconds: int = 60,
+    ):
+        if getattr(self, '_initialized', False):
+            return
+
+        self._vault_addr = vault_addr
+        self._vault_token = vault_token
+        self._timeout = timeout_seconds
+
+        self._mount = mount_point
+        self._kid_path = kid_path
+        self._kids_prefix = kids_prefix
+
+        self._refresh_ttl_seconds = refresh_ttl_seconds
+
+        self._lock = asyncio.Lock()
+        self._keyset: JwtPublicKeySet | None = None
+        self._last_refresh_at: datetime | None = None
+
+        self._initialized = True
+
+    @classmethod
+    def get_instance(cls) -> 'JwtKeyStore':
+        if cls._instance is None:
+            raise ApplicationException(status_code=500, message='JwtKeyStore not initialized')
+        return cls._instance
+
+    def _read_keyset_sync(self) -> JwtPublicKeySet:
+        client = create_hvac_client(url=self._vault_addr, token=self._vault_token, timeout=self._timeout)
+
+        kids = read_kv2_secret(client=client, mount_point=self._mount, path=self._kid_path)
+        active_kid = kids.get('active')
+        previous_kid = kids.get('previous')
+
+        if not active_kid:
+            raise RuntimeError('Vault jwt/kid secret missing "active"')
+
+        active = self._read_public_key_sync(client, str(active_kid))
+
+        previous = None
+        if previous_kid and previous_kid != active_kid:
+            previous = self._read_public_key_sync(client, str(previous_kid))
+
+        return JwtPublicKeySet(active=active, previous=previous)
+
+    def _read_public_key_sync(self, client, kid: str) -> JwtPublicKey:
+        data = read_kv2_secret(
+            client=client,
+            mount_point=self._mount,
+            path=f'{self._kids_prefix}/{kid}',
+        )
+        pub = data.get('public_key')
+        if not pub:
+            raise RuntimeError(f'Vault jwt/kids/{kid} missing public_key')
+        return JwtPublicKey(kid=kid, public_key_pem=pub)
+
+    async def refresh(self) -> JwtPublicKeySet:
+        keyset = await asyncio.to_thread(self._read_keyset_sync)
+        async with self._lock:
+            self._keyset = keyset
+            self._last_refresh_at = datetime.now(timezone.utc)
+        return keyset
+
+    async def get_public_key_for_kid(self, kid: str) -> str | None:
+        ks = await self._get_or_refresh()
+        return ks.public_keys_by_kid().get(kid)
+
+    async def last_refresh_at(self) -> datetime | None:
+        async with self._lock:
+            return self._last_refresh_at
+
+    async def _get_or_refresh(self) -> JwtPublicKeySet:
+        async with self._lock:
+            ks = self._keyset
+            last = self._last_refresh_at
+
+        if ks is None:
+            return await self.refresh()
+
+        if last is None:
+            return await self.refresh()
+
+        age = (datetime.now(timezone.utc) - last).total_seconds()
+        if age >= self._refresh_ttl_seconds:
+            return await self.refresh()
+
+        return ks

src/infrastructure/vault/scheduler.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+import logging
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from apscheduler.triggers.interval import IntervalTrigger
+from src.infrastructure.vault import JwtKeyStore
+
+logger = logging.getLogger(__name__)
+
+
+def start_jwt_keys_scheduler(store: JwtKeyStore, *, refresh_seconds: int = 3600) -> AsyncIOScheduler:
+    scheduler = AsyncIOScheduler()
+    scheduler.add_job(
+        store.refresh,
+        trigger=IntervalTrigger(seconds=refresh_seconds),
+        id="jwt_keys_refresh",
+        replace_existing=True,
+        max_instances=1,
+        coalesce=True,
+        misfire_grace_time=60,
+    )
+    scheduler.start()
+    logger.info("JWT keys scheduler started (interval=%s seconds)", refresh_seconds)
+    return scheduler

src/infrastructure/vault/utils.py

@@ -0,0 +1,17 @@
+from __future__ import annotations
+import hvac
+
+
+def create_hvac_client(*, url: str, token: str, timeout: int = 5) -> hvac.Client:
+    client = hvac.Client(url=url, token=token, timeout=timeout)
+    if not client.is_authenticated():
+        raise RuntimeError("Vault authentication failed. Check VAULT_ADDR / VAULT_TOKEN")
+    return client
+
+
+def read_kv2_secret(*, client: hvac.Client, mount_point: str, path: str) -> dict:
+    secret = client.secrets.kv.v2.read_secret_version(
+        mount_point=mount_point,
+        path=path,
+    )
+    return secret["data"]["data"]

src/main.py

@@ -0,0 +1,115 @@
+from __future__ import annotations
+from contextlib import asynccontextmanager
+import secrets
+from typing import AsyncGenerator
+from fastapi import Depends, FastAPI, status
+from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
+from fastapi.responses import HTMLResponse
+from fastapi.security import HTTPBasic, HTTPBasicCredentials
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.cache import create_redis_client
+from src.infrastructure.config.settings import get_settings
+from src.infrastructure.vault import JwtKeyStore, start_jwt_keys_scheduler
+from src.infrastructure.utils import generate_instance_id
+from src.infrastructure.logger import logger
+from src.infrastructure.config import settings
+from src.presentation.handlers import application_exception_handler, unhandled_exception_handler
+from src.presentation.middleware import TraceIDMiddleware, SecurityHeadersMiddleware
+from src.presentation.routing import order_router
+
+security = HTTPBasic()
+
+
+async def verify_credentials(credentials: HTTPBasicCredentials = Depends(security)) -> HTTPBasicCredentials:
+    user_ok = secrets.compare_digest(credentials.username, settings.DOCS_USERNAME)
+    pass_ok = secrets.compare_digest(credentials.password, settings.DOCS_PASSWORD)
+    if not (user_ok and pass_ok):
+        raise ApplicationException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            message='Unauthorized',
+            headers={'WWW-Authenticate': 'Basic'},
+        )
+    return credentials
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
+
+    instance_id = generate_instance_id()
+    logger.set_instance_id(instance_id)
+    logger.info(f'Users service instance started with id {instance_id}')
+
+    app.state.redis = create_redis_client()
+
+    jwt_store = JwtKeyStore(
+        vault_addr=settings.VAULT_ADDR,
+        vault_token=settings.VAULT_TOKEN,
+        mount_point=settings.VAULT_MOUNT_POINT,
+        kid_path=settings.VAULT_JWT_KID_PATH,
+        kids_prefix=settings.VAULT_JWT_KIDS_PREFIX,
+    )
+
+    await jwt_store.refresh()
+
+    jwt_scheduler = start_jwt_keys_scheduler(jwt_store, refresh_seconds=settings.JWT_KEYS_REFRESH_SECONDS)
+
+    app.state.jwt_key_store = jwt_store
+    app.state.jwt_keys_scheduler = jwt_scheduler
+    yield
+    await app.state.redis.aclose()
+    logger.info(f'Users service instance ended with id {instance_id}')
+
+
+app: FastAPI = FastAPI(
+    redoc_url=None,
+    docs_url=None,
+    lifespan=lifespan,
+    title='Elcsa Users Service'
+)
+
+app.add_exception_handler(ApplicationException, application_exception_handler)
+app.add_exception_handler(Exception, unhandled_exception_handler)
+
+app.include_router(order_router)
+
+
+# Added middleware
+app.add_middleware(TraceIDMiddleware, logger=logger)
+app.add_middleware(
+    SecurityHeadersMiddleware,
+    hsts=True,
+    hsts_preload=False,
+    frame_options='DENY',
+    referrer_policy='strict-origin-when-cross-origin',
+    content_security_policy="default-src 'self'; frame-ancestors 'none'; base-uri 'self'; object-src 'none'",
+)
+
+
+@app.get('/docs', include_in_schema=False)
+async def custom_swagger_ui_html(_credentials: HTTPBasicCredentials = Depends(verify_credentials)) -> HTMLResponse:
+    '''Custom Swagger documentation, optionally protected with basic authentication.'''
+    return get_swagger_ui_html(
+        openapi_url=getattr(app, 'openapi_url', '/openapi.json'),
+        title=getattr(app, 'title', 'FastAPI') + ' - Swagger UI',
+        oauth2_redirect_url=getattr(app, 'swagger_ui_oauth2_redirect_url', None),
+        swagger_js_url='https://unpkg.com/swagger-ui-dist@5/swagger-ui-bundle.js',
+        swagger_css_url='https://unpkg.com/swagger-ui-dist@5/swagger-ui.css',
+    )
+
+
+@app.get('/redoc', include_in_schema=False)
+async def custom_redoc_html(_credentials: HTTPBasicCredentials = Depends(verify_credentials)) -> HTMLResponse:
+    '''Custom ReDoc documentation, optionally protected with basic authentication.'''
+    return get_redoc_html(
+        openapi_url=getattr(app, 'openapi_url', '/openapi.json'),
+        title=getattr(app, 'title', 'FastAPI') + ' - ReDoc',
+        redoc_js_url='https://cdn.jsdelivr.net/npm/redoc@next/bundles/redoc.standalone.js',
+    )
+
+
+@app.post('/ping')
+async def ping() -> dict[str, str]:
+    return {
+        'message': 'pong',
+        'status': 'ok',
+    }

src/presentation/decorators/__init__.py

@@ -0,0 +1,4 @@
+from src.presentation.decorators.csrf import csrf_protect
+from src.presentation.decorators.rate_limit import rate_limit, _email_rl_key as email_rl_key
+from src.presentation.decorators.auth import require_access_token
+from src.presentation.decorators.cache import cached

src/presentation/decorators/auth.py

@@ -0,0 +1,36 @@
+from fastapi import Depends, Request
+from fastapi.security.utils import get_authorization_scheme_param
+from src.application.contracts import IJwtService
+from src.application.domain.exceptions import ApplicationException
+from src.application.domain.dto import AccessTokenPayload, AuthContext
+from src.presentation.dependencies import get_jwt_service
+
+
+def _extract_access_token(request: Request) -> str | None:
+    token = request.cookies.get('access_token')
+
+    if token:
+        return token
+
+    auth = request.headers.get('Authorization')
+    if auth:
+        scheme, param = get_authorization_scheme_param(auth)
+        if scheme.lower() == 'bearer' and param:
+            return param
+
+    return None
+
+
+async def require_access_token(
+    request: Request,
+    jwt_service: IJwtService = Depends(get_jwt_service),
+) -> AuthContext:
+    token = _extract_access_token(request)
+    if not token:
+        raise ApplicationException(status_code=401, message='Not authenticated')
+
+    payload: AccessTokenPayload = await jwt_service.decode_access_token(token)
+    if payload.type != 'access':
+        raise ApplicationException(status_code=401, message='Invalid token type')
+
+    return AuthContext(user_id=payload.sub, sid=payload.sid, token=payload)

src/presentation/decorators/cache.py

@@ -0,0 +1,46 @@
+from __future__ import annotations
+import functools
+from typing import Any, Awaitable, Callable
+from fastapi import Request
+from fastapi.responses import ORJSONResponse
+from src.infrastructure.cache import KeydbCache
+from src.infrastructure.logger import get_logger
+from src.presentation.dependencies.cache import get_redis
+
+
+def cached(*, prefix: str) -> Callable:
+
+    def decorator(func: Callable[..., Awaitable[Any]]):
+        @functools.wraps(func)
+        async def wrapper(*args: Any, **kwargs: Any) -> Any:
+            logger = get_logger()
+
+            request = kwargs.get('request')
+            if not isinstance(request, Request):
+                for a in args:
+                    if isinstance(a, Request):
+                        request = a
+                        break
+
+            auth = kwargs.get('auth')
+            user_id = getattr(auth, 'user_id', None) if auth else None
+
+            if request is None or user_id is None:
+                return await func(*args, **kwargs)
+
+            cache_key = f'{prefix}:{user_id}'
+
+            try:
+                redis = get_redis(request)
+                cache = KeydbCache(redis)
+                hit = await cache.get_user(user_id)
+                if hit is not None:
+                    logger.debug(f'Cache hit key={cache_key}')
+                    return ORJSONResponse(status_code=200, content=hit)
+            except Exception as e:
+                logger.warning(f'Cache read failed key={cache_key} error={e}')
+
+            return await func(*args, **kwargs)
+
+        return wrapper
+    return decorator

src/presentation/decorators/csrf.py

@@ -0,0 +1,61 @@
+from __future__ import annotations
+import inspect
+from functools import wraps
+from typing import Callable, Awaitable, Any, Optional, Annotated
+from fastapi import Request, Header
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.security import CsrfService
+
+
+def csrf_protect(
+    expected_subject_getter: Optional[Callable[[Request], Optional[str]]] = None,
+):
+    def decorator(func: Callable[..., Awaitable[Any]]):
+        sig = inspect.signature(func)
+        params = list(sig.parameters.values())
+
+        has_request = any(p.annotation is Request or p.name == 'request' for p in params)
+        if not has_request:
+            raise RuntimeError('csrf_protect requires endpoint to accept `request: Request`')
+
+        has_header = any(p.name == 'x_csrf_token' for p in params)
+        if not has_header:
+            params.append(
+                inspect.Parameter(
+                    name='x_csrf_token',
+                    kind=inspect.Parameter.KEYWORD_ONLY,
+                    default=None,
+                    annotation=Annotated[str | None, Header(alias='X-CSRF-Token')],
+                )
+            )
+
+        @wraps(func)
+        async def wrapper(*args, **kwargs):
+            request: Request | None = kwargs.get('request')
+            if request is None:
+                for arg in args:
+                    if isinstance(arg, Request):
+                        request = arg
+                        break
+
+            if request is None:
+                raise ApplicationException(
+                    status_code=500,
+                    message='Request is required for CSRF protection',
+                )
+
+            csrf = CsrfService()
+
+            cookie_token, _ = csrf.extract(request.cookies, request.headers)
+            header_token = kwargs.get('x_csrf_token')
+
+            expected_subject = expected_subject_getter(request) if expected_subject_getter else None
+            csrf.verify_pair(cookie_token, header_token, expected_subject)
+
+            kwargs.pop('x_csrf_token', None)
+            return await func(*args, **kwargs)
+
+        wrapper.__signature__ = sig.replace(parameters=params)
+        return wrapper
+
+    return decorator

src/presentation/decorators/rate_limit.py

@@ -0,0 +1,171 @@
+from __future__ import annotations
+import functools
+import inspect
+import hashlib
+from typing import Any, Awaitable, Callable, Literal, Optional, Protocol, runtime_checkable
+from fastapi import Request
+from redis.asyncio.client import Redis
+from src.application.contracts import ILogger
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.logger import get_logger
+from src.presentation.dependencies import get_redis
+
+
+def _find_request(args: tuple[Any, ...], kwargs: dict[str, Any]) -> Request:
+    req = kwargs.get('request')
+    if isinstance(req, Request):
+        return req
+    for a in args:
+        if isinstance(a, Request):
+            return a
+    raise RuntimeError('rate_limit decorator requires fastapi.Request argument')
+
+
+def _client_ip(request: Request) -> str:
+    xff = request.headers.get('x-forwarded-for')
+    if xff:
+        return xff.split(',')[0].strip()
+    if request.client:
+        return request.client.host
+    return 'unknown'
+
+
+_LUA_INCR_EXPIRE_TTL = '''
+local key = KEYS[1]
+local window = tonumber(ARGV[1])
+
+local current = redis.call('INCR', key)
+if current == 1 then
+  redis.call('EXPIRE', key, window)
+end
+
+local ttl = redis.call('TTL', key)
+return { current, ttl }
+'''
+
+
+Scope = Literal['ip', 'device', 'user', 'key']
+
+
+@runtime_checkable
+class KeyBuilder1(Protocol):
+    def __call__(self, request: Request) -> str: ...
+
+
+@runtime_checkable
+class KeyBuilder3(Protocol):
+    def __call__(self, request: Request, args: tuple[Any, ...], kwargs: dict[str, Any]) -> str: ...
+
+
+KeyBuilder = KeyBuilder1 | KeyBuilder3
+
+
+def _call_key_builder(builder: KeyBuilder, request: Request, args: tuple[Any, ...], kwargs: dict[str, Any]) -> str:
+    try:
+        sig = inspect.signature(builder)
+        if len(sig.parameters) >= 3:
+            return builder(request, args, kwargs)
+        return builder(request)
+    except Exception as e:
+        try:
+            return builder(request, args, kwargs)
+        except Exception:
+            raise e
+        
+def _email_rl_key(request: Request, args: tuple[Any, ...], kwargs: dict[str, Any]) -> str:
+
+    body = kwargs.get('body')
+    if body is None and args:
+        for a in args:
+            if hasattr(a, 'email'):
+                body = a
+                break
+
+    email = (getattr(body, 'email', '') or '').strip().lower()
+    if not email:
+        email = _client_ip(request)
+
+    digest = hashlib.sha256(email.encode('utf-8')).hexdigest()[:24]
+    return f'email:{digest}'
+
+def rate_limit(
+    *,
+    limit: int,
+    window_seconds: int,
+    scope: Scope = 'ip',
+    key_prefix: str = 'rl',
+    key_builder: Optional[KeyBuilder] = None,
+    fail_open: bool = True,
+) -> Callable[[Callable[..., Awaitable[Any]]], Callable[..., Awaitable[Any]]]:
+
+    if limit <= 0:
+        raise ValueError('rate_limit: limit must be > 0')
+    if window_seconds <= 0:
+        raise ValueError('rate_limit: window_seconds must be > 0')
+    if scope == 'key' and not key_builder:
+        raise ValueError('rate_limit: scope="key" requires key_builder')
+
+    def decorator(func: Callable[..., Awaitable[Any]]):
+        @functools.wraps(func)
+        async def wrapper(*args: Any, **kwargs: Any):
+            request = _find_request(args, kwargs)
+            logger: ILogger = get_logger()
+
+            if scope == 'ip':
+                ident = _client_ip(request)
+            elif scope == 'device':
+                ident = request.cookies.get('device_id') or _client_ip(request)
+            elif scope == 'user':
+                user = getattr(request.state, 'user', None)
+                user_id = getattr(user, 'id', None) if user else None
+                ident = str(user_id) if user_id else _client_ip(request)
+            else:
+                try:
+                    ident = _call_key_builder(key_builder, request, args, kwargs)  # type: ignore[arg-type]
+                except Exception as e:
+                    logger.error(f'RateLimit key_builder failed error={str(e)}')
+                    raise ApplicationException(500, 'Rate limiter key_builder failed')
+
+            route = request.url.path
+            method = request.method
+            redis_key = f'{key_prefix}:{scope}:{method}:{route}:{ident}'
+
+            logger.debug(f'RateLimit check key={redis_key} limit={limit} window={window_seconds}')
+
+            try:
+                redis: Redis = get_redis(request)
+
+                result = await redis.eval(
+                    _LUA_INCR_EXPIRE_TTL,
+                    1,
+                    redis_key,
+                    str(window_seconds),
+                )
+
+                count = int(result[0])
+                ttl_raw = int(result[1]) if result and len(result) > 1 else window_seconds
+                ttl = window_seconds if ttl_raw < 0 else ttl_raw
+
+            except Exception as e:
+                logger.error(f'RateLimit redis failure key={redis_key} error={str(e)}')
+
+                if fail_open:
+                    logger.warning(f'RateLimit fail-open activated key={redis_key}')
+                    return await func(*args, **kwargs)
+
+                raise ApplicationException(503, 'Rate limiter unavailable')
+
+            if count > limit:
+                retry_after = max(ttl, 0)
+                logger.warning(f'RateLimit exceeded key={redis_key} count={count} limit={limit} retry_after={retry_after}')
+                raise ApplicationException(
+                    status_code=429,
+                    message='Too Many Requests',
+                    headers={'Retry-After': str(retry_after)},
+                )
+
+            logger.debug(f'RateLimit passed key={redis_key} count={count}')
+            return await func(*args, **kwargs)
+
+        return wrapper
+    return decorator

src/presentation/dependencies/__init__.py

@@ -0,0 +1,16 @@
+from src.presentation.dependencies.commands import (
+    get_get_me_command,
+    get_set_phone_command,
+    get_set_crypto_wallet_start_command,
+    get_set_crypto_wallet_complete_command,
+    get_update_bank_details_start_command,
+    get_update_bank_details_complete_command,
+    get_change_password_start_command,
+    get_change_password_complete_command,
+    get_change_email_start_command,
+    get_change_email_confirm_old_command,
+    get_change_email_complete_command,
+)
+from src.presentation.dependencies.security import get_jwt_service
+from src.presentation.dependencies.cache import get_redis, get_cache
+from src.presentation.dependencies.queue_messanger import get_rabbit

src/presentation/dependencies/cache.py

@@ -0,0 +1,12 @@
+from fastapi import Depends, Request
+from redis.asyncio.client import Redis
+from src.application.contracts import ICache
+from src.infrastructure.cache import KeydbCache
+
+
+def get_redis(request: Request) -> Redis:
+    return request.app.state.redis
+
+
+def get_cache(redis_client: Redis = Depends(get_redis)) -> ICache:
+    return KeydbCache(redis_client)

src/presentation/dependencies/commands.py

@@ -0,0 +1,161 @@
+from fastapi import Depends
+from src.application.abstractions import IUnitOfWork
+from src.application.commands import GetMeCommand, SetPhoneCommand, SetCryptoWalletStartCommand, SetCryptoWalletCompleteCommand, UpdateBankDetailsStartCommand, UpdateBankDetailsCompleteCommand, ChangePasswordStartCommand, ChangePasswordCompleteCommand, ChangeEmailStartCommand, ChangeEmailConfirmOldCommand, ChangeEmailCompleteCommand
+from src.application.contracts import ILogger, ICache, IQueueMessanger, IHashService
+from src.presentation.dependencies.cache import get_cache
+from src.presentation.dependencies.logger import get_logger
+from src.presentation.dependencies.queue_messanger import get_rabbit
+from src.presentation.dependencies.security import get_hash_service
+from src.presentation.dependencies.unit_of_work import get_unit_of_work
+
+
+def get_get_me_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+) -> GetMeCommand:
+    return GetMeCommand(logger=logger, unit_of_work=unit_of_work, cache=cache)
+
+
+def get_set_phone_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+) -> SetPhoneCommand:
+    return SetPhoneCommand(logger=logger, unit_of_work=unit_of_work, cache=cache)
+
+
+def get_set_crypto_wallet_start_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    messanger: IQueueMessanger = Depends(get_rabbit),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> SetCryptoWalletStartCommand:
+    return SetCryptoWalletStartCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        messanger=messanger,
+        hash_service=hash_service,
+    )
+
+
+def get_set_crypto_wallet_complete_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> SetCryptoWalletCompleteCommand:
+    return SetCryptoWalletCompleteCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        hash_service=hash_service,
+    )
+
+
+def get_change_password_start_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    messanger: IQueueMessanger = Depends(get_rabbit),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> ChangePasswordStartCommand:
+    return ChangePasswordStartCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        messanger=messanger,
+        hash_service=hash_service,
+    )
+
+
+def get_change_password_complete_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> ChangePasswordCompleteCommand:
+    return ChangePasswordCompleteCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        hash_service=hash_service,
+    )
+
+
+def get_change_email_start_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    messanger: IQueueMessanger = Depends(get_rabbit),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> ChangeEmailStartCommand:
+    return ChangeEmailStartCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        messanger=messanger,
+        hash_service=hash_service,
+    )
+
+
+def get_change_email_confirm_old_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    messanger: IQueueMessanger = Depends(get_rabbit),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> ChangeEmailConfirmOldCommand:
+    return ChangeEmailConfirmOldCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        messanger=messanger,
+        hash_service=hash_service,
+    )
+
+
+def get_change_email_complete_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> ChangeEmailCompleteCommand:
+    return ChangeEmailCompleteCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        hash_service=hash_service,
+    )
+
+
+def get_update_bank_details_start_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    messanger: IQueueMessanger = Depends(get_rabbit),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> UpdateBankDetailsStartCommand:
+    return UpdateBankDetailsStartCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        messanger=messanger,
+        hash_service=hash_service,
+    )
+
+
+def get_update_bank_details_complete_command(
+    logger: ILogger = Depends(get_logger),
+    unit_of_work: IUnitOfWork = Depends(get_unit_of_work),
+    cache: ICache = Depends(get_cache),
+    hash_service: IHashService = Depends(get_hash_service),
+) -> UpdateBankDetailsCompleteCommand:
+    return UpdateBankDetailsCompleteCommand(
+        logger=logger,
+        unit_of_work=unit_of_work,
+        cache=cache,
+        hash_service=hash_service,
+    )

src/presentation/dependencies/logger.py

@@ -0,0 +1,7 @@
+from functools import lru_cache
+from src.application.contracts import ILogger
+from src.infrastructure.logger import logger
+
+@lru_cache
+def get_logger() -> ILogger:
+    return logger

src/presentation/dependencies/queue_messanger.py

@@ -0,0 +1,8 @@
+from functools import lru_cache
+from src.application.contracts import IQueueMessanger
+from src.infrastructure.messanger import RabbitClient
+
+
+@lru_cache(maxsize=1)
+def get_rabbit() -> IQueueMessanger:
+    return RabbitClient()

src/presentation/dependencies/security.py

@@ -0,0 +1,25 @@
+from functools import lru_cache
+from fastapi import Depends
+from src.application.contracts import IJwtService, ILogger, IHashService
+from src.infrastructure.security import JwtService, HashService
+from src.infrastructure.vault import JwtKeyStore
+from src.presentation.dependencies.logger import get_logger
+
+
+@lru_cache(maxsize=1)
+def _hash_service(logger: ILogger) -> IHashService:
+    return HashService(logger=logger)
+
+
+def get_hash_service(logger: ILogger = Depends(get_logger)) -> IHashService:
+    return _hash_service(logger)
+
+
+@lru_cache(maxsize=1)
+def _jwt_service(logger: ILogger) -> IJwtService:
+    key_store = JwtKeyStore.get_instance()
+    return JwtService(logger=logger, key_store=key_store)
+
+
+def get_jwt_service(logger: ILogger = Depends(get_logger)) -> IJwtService:
+    return _jwt_service(logger)

src/presentation/dependencies/unit_of_work.py

@@ -0,0 +1,10 @@
+from fastapi import Depends
+from src.application.abstractions import IUnitOfWork
+from src.application.contracts import ILogger
+from src.infrastructure.database import UnitOfWork
+from src.infrastructure.database.context import async_session_maker
+from src.infrastructure.logger import get_logger
+
+
+def get_unit_of_work(logger: ILogger = Depends(get_logger)) -> IUnitOfWork:
+    return UnitOfWork(session_factory=async_session_maker, logger=logger)

src/presentation/handlers/__init__.py

@@ -0,0 +1,2 @@
+from src.presentation.handlers.unhandled_handler import unhandled_exception_handler
+from src.presentation.handlers.application_handler import application_exception_handler

src/presentation/handlers/application_handler.py

@@ -0,0 +1,17 @@
+from fastapi.responses import ORJSONResponse
+from fastapi import Request
+from src.application.domain.exceptions import ApplicationException
+
+
+async def application_exception_handler(_request: Request, exc: ApplicationException) -> ORJSONResponse:
+    detail = exc.message
+    if 500 <= exc.status_code:
+        detail = "Internal Server Error"
+
+    return ORJSONResponse(
+        status_code=exc.status_code,
+        content={"detail": detail},
+        headers=dict(exc.headers) if exc.headers else None,
+    )
+
+

src/presentation/handlers/unhandled_handler.py

@@ -0,0 +1,12 @@
+from fastapi.responses import ORJSONResponse
+from fastapi import Request
+from starlette import status
+from src.infrastructure.logger import logger
+
+
+async def unhandled_exception_handler(_request: Request, exc: Exception) -> ORJSONResponse:
+    logger.exception(f'Unhandled exception: {type(exc).__name__}')
+    return ORJSONResponse(
+        status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        content={'detail': 'Internal Server Error'},
+    )

src/presentation/middleware/__init__.py

@@ -0,0 +1,2 @@
+from src.presentation.middleware.trace_id import TraceIDMiddleware
+from src.presentation.middleware.security_headers import SecurityHeadersMiddleware

src/presentation/middleware/security_headers.py

@@ -0,0 +1,51 @@
+from starlette.middleware.base import BaseHTTPMiddleware
+from starlette.requests import Request
+from starlette.responses import Response
+
+
+class SecurityHeadersMiddleware(BaseHTTPMiddleware):
+    def __init__(
+        self,
+        app,
+        *,
+        hsts: bool = True,
+        hsts_max_age: int = 31536000,  # 1 год
+        hsts_include_subdomains: bool = True,
+        hsts_preload: bool = False,
+        frame_options: str = 'DENY',  # или 'SAMEORIGIN'
+        referrer_policy: str = 'strict-origin-when-cross-origin',
+        content_security_policy: str | None = None,
+    ):
+        super().__init__(app)
+        self.hsts = hsts
+        self.hsts_max_age = hsts_max_age
+        self.hsts_include_subdomains = hsts_include_subdomains
+        self.hsts_preload = hsts_preload
+        self.frame_options = frame_options
+        self.referrer_policy = referrer_policy
+        self.csp = content_security_policy
+
+    async def dispatch(self, request: Request, call_next) -> Response:
+        response: Response = await call_next(request)
+
+        if request.url.path in ('/docs', '/redoc', '/openapi.json'):
+            return response
+
+        if self.hsts and request.url.scheme == 'https':
+            hsts = f'max-age={self.hsts_max_age}'
+            if self.hsts_include_subdomains:
+                hsts += '; includeSubDomains'
+            if self.hsts_preload:
+                hsts += '; preload'
+            response.headers['Strict-Transport-Security'] = hsts
+
+        response.headers['X-Content-Type-Options'] = 'nosniff'
+        
+        response.headers['X-Frame-Options'] = self.frame_options
+
+        response.headers['Referrer-Policy'] = self.referrer_policy
+
+        if self.csp:
+            response.headers['Content-Security-Policy'] = self.csp
+
+        return response

src/presentation/middleware/trace_id.py

@@ -0,0 +1,135 @@
+from __future__ import annotations
+from typing import Optional
+from contextvars import Token
+from starlette.requests import Request
+from starlette.types import ASGIApp, Message, Receive, Scope, Send
+from ulid import ULID
+from src.application.contracts import ILogger
+from src.infrastructure.config import settings
+from src.infrastructure.context_vars import trace_id_var
+
+
+class TraceIDMiddleware:
+    def __init__(
+        self,
+        app: ASGIApp,
+        logger: ILogger,
+        response_header_name: str = "X-Trace-ID",
+        attach_response_header: bool = True,
+    ) -> None:
+        self.app = app
+        self.logger = logger
+        self.response_header_name = response_header_name
+        self.attach_response_header = attach_response_header
+
+    def _is_excluded(self, path: str) -> bool:
+        return any(path == p or path.startswith(p.rstrip("/") + "/") for p in settings.EXCLUDED_PATHS)
+
+    async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
+        if scope["type"] != "http":
+            await self.app(scope, receive, send)
+            return
+
+        request = Request(scope)
+
+        if self._is_excluded(request.url.path):
+            await self.app(scope, receive, send)
+            return
+
+        trace_id = request.headers.get("X-Trace-ID") or request.headers.get("X-Request-ID")
+        if not trace_id:
+            trace_id = str(ULID())
+
+        request.state.trace_id = trace_id
+
+        token: Token = trace_id_var.set(trace_id)
+
+        self.logger.debug(f"Request started: {request.method} {request.url} - TraceID: {trace_id}")
+
+        status_code_holder: dict[str, Optional[int]] = {"status": None}
+
+        async def send_wrapper(message: Message) -> None:
+            if message["type"] == "http.response.start":
+                status_code_holder["status"] = int(message["status"])
+
+                if self.attach_response_header:
+                    headers = list(message.get("headers", []))
+                    headers.append((self.response_header_name.lower().encode(), trace_id.encode()))
+                    message["headers"] = headers
+            await send(message)
+
+        try:
+            await self.app(scope, receive, send_wrapper)
+        finally:
+            status = status_code_holder["status"]
+            status_part = f"{status}" if status is not None else "unknown"
+            self.logger.debug(
+                f"Request finished: {request.method} {request.url} - TraceID: {trace_id} - Status: {status_part}"
+            )
+            trace_id_var.reset(token)
+
+
+# from __future__ import annotations
+# from typing import Optional
+# from starlette.requests import Request
+# from starlette.types import ASGIApp, Message, Receive, Scope, Send
+# from ulid import ULID
+# from src.application.contracts import ILogger
+# from src.infrastructure.config.settings import settings
+#
+#
+# class TraceIDMiddleware:
+#     def __init__(
+#         self,
+#         app: ASGIApp,
+#         logger: ILogger,
+#         response_header_name: str = 'X-Trace-ID',
+#         attach_response_header: bool = True,
+#     ) -> None:
+#         self.app = app
+#         self.logger = logger
+#         self.response_header_name = response_header_name
+#         self.attach_response_header = attach_response_header
+#
+#     def _is_excluded(self, path: str) -> bool:
+#         return any(path == p or path.startswith(p.rstrip('/') + '/') for p in settings.EXCLUDED_PATHS)
+#
+#     async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
+#         if scope['type'] != 'http':
+#             await self.app(scope, receive, send)
+#             return
+#
+#         request = Request(scope)
+#
+#         if self._is_excluded(request.url.path):
+#             await self.app(scope, receive, send)
+#             return
+#
+#         trace_id = request.headers.get('X-Trace-ID') or request.headers.get('X-Request-ID')
+#         if not trace_id:
+#             trace_id = str(ULID())
+#
+#         request.state.trace_id = trace_id
+#         self.logger.set_trace_id(trace_id)
+#
+#         self.logger.debug(f'Request started: {request.method} {request.url} - TraceID: {trace_id}')
+#
+#         status_code_holder: dict[str, Optional[int]] = {'status': None}
+#
+#         async def send_wrapper(message: Message) -> None:
+#             if message['type'] == 'http.response.start':
+#                 status_code_holder['status'] = int(message['status'])
+#
+#                 if self.attach_response_header:
+#                     headers = list(message.get('headers', []))
+#                     headers.append((self.response_header_name.lower().encode(), trace_id.encode()))
+#                     message['headers'] = headers
+#             await send(message)
+#
+#         try:
+#             await self.app(scope, receive, send_wrapper)
+#         finally:
+#             status = status_code_holder['status']
+#             status_part = f'{status}' if status is not None else 'unknown'
+#             self.logger.debug(f'Request finished: {request.method} {request.url} - TraceID: {trace_id} - Status: {status_part}')
+#             self.logger.clear_trace_id()

src/presentation/routing/__init__.py

@@ -0,0 +1 @@
+from src.presentation.routing.order import order_router

src/presentation/routing/order.py

@@ -0,0 +1,114 @@
+import json
+from decimal import Decimal
+from urllib.parse import parse_qs
+import aiohttp
+from fastapi import APIRouter, Depends, Request
+from fastapi.responses import ORJSONResponse
+from ulid import ULID
+from src.application.contracts import ILogger
+from src.application.domain.dto import AuthContext
+from src.application.domain.exceptions import ApplicationException
+from src.presentation.decorators import csrf_protect, require_access_token
+from src.presentation.dependencies.logger import get_logger
+from src.presentation.schemas.order import CreateOrder
+
+
+order_router = APIRouter(prefix='/order', tags=['orders'])
+
+ITPAY_API_BASE = 'https://api.gw.itpay.ru'
+ITPAY_AUTHORIZATION = 'Token REPLACE_WITH_JWT_FROM_ITPAY_DASHBOARD'
+HARDCODED_USDT_TO_RUB = Decimal('100')
+HARDCODED_GAS_RUB = Decimal('15')
+HARDCODED_OUR_COMMISSION_RUB = Decimal('25')
+
+
+def _amount_rub_for_itpay(amount_usdt: Decimal) -> Decimal:
+    return (amount_usdt * HARDCODED_USDT_TO_RUB + HARDCODED_GAS_RUB + HARDCODED_OUR_COMMISSION_RUB).quantize(Decimal('0.01'))
+
+
+
+@order_router.post('/create')
+#@csrf_protect()
+async def create_order(
+    request: Request,
+    body: CreateOrder,
+    #auth: AuthContext = Depends(require_access_token),
+    logger: ILogger = Depends(get_logger),
+) -> ORJSONResponse:
+    amount_rub = _amount_rub_for_itpay(body.amount_usdt)
+    amount_str = str(amount_rub)
+    client_payment_id = str(ULID())
+    payload = {
+        'amount': amount_str,
+        'client_payment_id': client_payment_id,
+        'description': f'USDT {body.amount_usdt}',
+        'metadata': {
+            'user_id': '01KPSYW27JZ26HBDR3QS5J6VMS',
+            'amount_usdt': str(body.amount_usdt),
+            'rate': str(HARDCODED_USDT_TO_RUB),
+            'gas_rub': str(HARDCODED_GAS_RUB),
+            'commission_rub': str(HARDCODED_OUR_COMMISSION_RUB),
+        },
+    }
+    url = f'{ITPAY_API_BASE}/v1/payments'
+    headers = {
+        'Authorization': ITPAY_AUTHORIZATION,
+        'Content-Type': 'application/json',
+        'Accept': 'application/json',
+    }
+    try:
+        timeout = aiohttp.ClientTimeout(total=30)
+        async with aiohttp.ClientSession(timeout=timeout) as session:
+            async with session.post(url, json=payload, headers=headers) as resp:
+                response_text = await resp.text()
+                try:
+                    response_json = json.loads(response_text)
+                except json.JSONDecodeError:
+                    response_json = {'raw': response_text}
+                if resp.status >= 400:
+                    logger.warning(f'itpay payments POST {resp.status} {response_text}')
+                    raise ApplicationException(status_code=502, message='Payment provider error')
+    except ApplicationException:
+        raise
+    except aiohttp.ClientError as e:
+        logger.error(str(e))
+        raise ApplicationException(status_code=502, message='Payment provider unreachable')
+    return ORJSONResponse(
+        content={
+            'itpay': response_json,
+            'client_payment_id': client_payment_id,
+            'amount_usdt': str(body.amount_usdt),
+            'amount_rub': amount_str,
+            'hardcoded': {
+                'usdt_to_rub': str(HARDCODED_USDT_TO_RUB),
+                'gas_rub': str(HARDCODED_GAS_RUB),
+                'commission_rub': str(HARDCODED_OUR_COMMISSION_RUB),
+            },
+        }
+    )
+
+
+
+@order_router.post('/webhook/itpay')
+async def itpay_webhook(request: Request, logger: ILogger = Depends(get_logger)) -> ORJSONResponse:
+    raw = await request.body()
+    ct = (request.headers.get('content-type') or '').lower()
+    if 'application/json' in ct:
+        try:
+            parsed = json.loads(raw.decode('utf-8'))
+        except (json.JSONDecodeError, UnicodeDecodeError):
+            parsed = raw.decode('utf-8', errors='replace')
+    elif 'application/x-www-form-urlencoded' in ct:
+        decoded = raw.decode('utf-8', errors='replace')
+        qs = parse_qs(decoded, keep_blank_values=True)
+        parsed = {k: (vals[0] if len(vals) == 1 else vals) for k, vals in qs.items()}
+    else:
+        parsed = raw.decode('utf-8', errors='replace')
+    log_payload = {
+        'method': request.method,
+        'url': str(request.url),
+        'headers': {k: v for k, v in request.headers.items()},
+        'body': parsed,
+    }
+    logger.info(json.dumps(log_payload, ensure_ascii=False, default=str))
+    return ORJSONResponse(content={'status': 0})

src/presentation/schemas/order.py

@@ -0,0 +1,6 @@
+from decimal import Decimal
+from pydantic import BaseModel, Field
+
+
+class CreateOrder(BaseModel):
+    amount_usdt: Decimal = Field(gt=0)