From 12ec678776f199d8dd62b0cd1731fda7863b7b24 Mon Sep 17 00:00:00 2001
From: xsl <xsl@xsl.com>
Date: Mon, 26 Jan 2026 09:39:51 +0800
Subject: [PATCH] =?UTF-8?q?[backend]=20feat:=20=E6=B7=BB=E5=8A=A0=E5=AF=86?=
 =?UTF-8?q?=E7=A0=81=E5=92=8CJWT=E5=B7=A5=E5=85=B7=E5=87=BD=E6=95=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/src/utils/__init__.py                 |   9 +++++
 .../__pycache__/__init__.cpython-310.pyc      | Bin 0 -> 349 bytes
 .../src/utils/__pycache__/jwt.cpython-310.pyc | Bin 0 -> 1104 bytes
 .../__pycache__/password.cpython-310.pyc      | Bin 0 -> 662 bytes
 backend/src/utils/jwt.py                      |  33 ++++++++++++++++++
 backend/src/utils/password.py                 |  15 ++++++++
 6 files changed, 57 insertions(+)
 create mode 100644 backend/src/utils/__init__.py
 create mode 100644 backend/src/utils/__pycache__/__init__.cpython-310.pyc
 create mode 100644 backend/src/utils/__pycache__/jwt.cpython-310.pyc
 create mode 100644 backend/src/utils/__pycache__/password.cpython-310.pyc
 create mode 100644 backend/src/utils/jwt.py
 create mode 100644 backend/src/utils/password.py

diff --git a/backend/src/utils/__init__.py b/backend/src/utils/__init__.py
new file mode 100644
index 00000000..c8209695
--- /dev/null
+++ b/backend/src/utils/__init__.py
@@ -0,0 +1,9 @@
+from .password import hash_password, verify_password
+from .jwt import create_access_token, decode_access_token
+
+__all__ = [
+    "hash_password",
+    "verify_password",
+    "create_access_token",
+    "decode_access_token",
+]
diff --git a/backend/src/utils/__pycache__/__init__.cpython-310.pyc b/backend/src/utils/__pycache__/__init__.cpython-310.pyc
new file mode 100644
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diff --git a/backend/src/utils/jwt.py b/backend/src/utils/jwt.py
new file mode 100644
index 00000000..6e04a66d
--- /dev/null
+++ b/backend/src/utils/jwt.py
@@ -0,0 +1,33 @@
+from datetime import datetime, timedelta
+from typing import Optional
+from jose import JWTError, jwt
+from config.settings import get_settings
+
+settings = get_settings()
+
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
+    """创建访问令牌"""
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
+        )
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(
+        to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM
+    )
+    return encoded_jwt
+
+
+def decode_access_token(token: str) -> Optional[dict]:
+    """解码访问令牌"""
+    try:
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM]
+        )
+        return payload
+    except JWTError:
+        return None
diff --git a/backend/src/utils/password.py b/backend/src/utils/password.py
new file mode 100644
index 00000000..0e5b77a4
--- /dev/null
+++ b/backend/src/utils/password.py
@@ -0,0 +1,15 @@
+import bcrypt
+
+
+def hash_password(password: str) -> str:
+    """哈希密码"""
+    salt = bcrypt.gensalt(rounds=12)
+    hashed = bcrypt.hashpw(password.encode("utf-8"), salt)
+    return hashed.decode("utf-8")
+
+
+def verify_password(password: str, hashed_password: str) -> bool:
+    """验证密码"""
+    return bcrypt.checkpw(
+        password.encode("utf-8"), hashed_password.encode("utf-8")
+    )