feat: implement Auth endpoints for web dashboard

decnet/web/auth.py

@@ -0,0 +1,33 @@
+import os
+from datetime import datetime, timedelta, timezone
+from typing import Optional, Any
+import jwt
+from passlib.context import CryptContext
+
+SECRET_KEY: str = os.environ.get("DECNET_SECRET_KEY", "super-secret-key-change-me")
+ALGORITHM: str = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES: int = 1440
+
+pwd_context: CryptContext = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def create_access_token(data: dict[str, Any], expires_delta: Optional[timedelta] = None) -> str:
+    to_encode: dict[str, Any] = data.copy()
+    expire: datetime
+    if expires_delta:
+        expire = datetime.now(timezone.utc) + expires_delta
+    else:
+        expire = datetime.now(timezone.utc) + timedelta(minutes=15)
+        
+    to_encode.update({"exp": expire})
+    to_encode.update({"iat": datetime.now(timezone.utc)})
+    encoded_jwt: str = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt