move caps to "User" schema

api/kiwi_vpn_api/config.py

@@ -4,11 +4,12 @@ import functools
 import json
 from datetime import datetime, timedelta
 from enum import Enum
+from secrets import token_hex
 
 from jose import JWTError, jwt
 from jose.constants import ALGORITHMS
 from passlib.context import CryptContext
-from pydantic import BaseModel, BaseSettings, Field
+from pydantic import BaseModel, BaseSettings, Field, validator
 from sqlalchemy import create_engine
 from sqlalchemy.engine import Engine
 
@@ -70,6 +71,14 @@ class JWTConfig(BaseModel):
     hash_algorithm: str = ALGORITHMS.HS256
     expiry_minutes: int = 30
 
+    @validator("secret")
+    @classmethod
+    def ensure_secret(cls, value: str | None) -> str:
+        if value is None:
+            return token_hex(32)
+
+        return value
+
     async def create_token(
         self,
         username: str,

api/kiwi_vpn_api/db/models.py

@@ -29,6 +29,9 @@ class UserCapability(ORMBaseModel):
     )
     capability = Column(String, primary_key=True)
 
+    def __str__(self) -> str:
+        return self.capability
+
 
 class DistinguishedName(ORMBaseModel):
     __tablename__ = "distinguished_names"

api/kiwi_vpn_api/db/schemas.py

@@ -1,9 +1,11 @@
 from __future__ import annotations
 
 from datetime import datetime
+from enum import Enum
 
 from passlib.context import CryptContext
 from pydantic import BaseModel, validator
+from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
 from . import models
@@ -25,22 +27,12 @@ class Certificate(CertificateBase):
         orm_mode = True
 
 
+class UserCapability(Enum):
+    admin = "admin"
+
+
 class UserBase(BaseModel):
     name: str
-    capabilities: list[str]
-
-    @validator("capabilities", pre=True)
-    @classmethod
-    def unify_capabilities(
-        cls,
-        value: list[models.UserCapability | str]
-    ) -> list[str]:
-        return [
-            capability.capability
-            if isinstance(capability, models.UserCapability)
-            else str(capability)
-            for capability in value
-        ]
 
 
 class UserCreate(UserBase):
@@ -49,10 +41,22 @@ class UserCreate(UserBase):
 
 class User(UserBase):
     certificates: list[Certificate]
+    capabilities: list[UserCapability]
 
     class Config:
         orm_mode = True
 
+    @validator("capabilities", pre=True)
+    @classmethod
+    def unify_capabilities(
+        cls,
+        value: list[models.UserCapability | str]
+    ) -> list[UserCapability]:
+        return [
+            UserCapability(str(capability))
+            for capability in value
+        ]
+
     @classmethod
     def from_db(
         cls,
@@ -83,10 +87,12 @@ class User(UserBase):
                 .first())
 
         if user is None:
+            # inexistent user, fake doing password verification
             crypt_context.dummy_verify()
             return None
 
         if not crypt_context.verify(password, user.password):
+            # password hash mismatch
             return None
 
         return cls.from_orm(user)
@@ -97,21 +103,22 @@ class User(UserBase):
         db: Session,
         user: UserCreate,
         crypt_context: CryptContext,
-    ) -> User:
-        user = models.User(
-            name=user.name,
-            password=crypt_context.hash(user.password),
-            capabilities=[
-                models.UserCapability(capability=capability)
-                for capability in user.capabilities
-            ]
-        )
+    ) -> User | None:
+        try:
+            user = models.User(
+                name=user.name,
+                password=crypt_context.hash(user.password),
+                capabilities=[models.UserCapability(capability="admin")],
+            )
 
-        db.add(user)
-        db.commit()
-        db.refresh(user)
+            db.add(user)
+            db.commit()
+            db.refresh(user)
 
-        return cls.from_orm(user)
+            return cls.from_orm(user)
+
+        except IntegrityError:
+            pass
 
 
 class DistinguishedNameBase(BaseModel):

api/kiwi_vpn_api/routers/_deps.py

@@ -8,6 +8,33 @@ from ..db import Connection, schemas
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl="user/auth")
 
 
+# just a namespace
+class Responses:
+    ok = {
+        "content": None,
+    }
+    installed = {
+        "description": "kiwi-vpn already installed",
+        "content": None,
+    }
+    not_installed = {
+        "description": "kiwi-vpn not installed",
+        "content": None,
+    }
+    needs_user = {
+        "description": "Must be logged in",
+        "content": None,
+    }
+    needs_admin = {
+        "description": "Must be admin",
+        "content": None,
+    }
+    entry_exists = {
+        "description": "Entry exists in database",
+        "content": None,
+    }
+
+
 async def get_current_user(
     token: str = Depends(oauth2_scheme),
     db: Session | None = Depends(Connection.get),

api/kiwi_vpn_api/routers/admin.py

@@ -1,7 +1,4 @@
-from secrets import token_hex
-
 from fastapi import APIRouter, Depends, HTTPException, status
-from sqlalchemy.orm import Session
 
 from ..config import Config
 from ..db import Connection, schemas
@@ -10,61 +7,54 @@ from . import _deps
 router = APIRouter(prefix="/admin")
 
 
+@router.put(
+    "/install",
+    responses={
+        status.HTTP_200_OK: _deps.Responses.ok,
+        status.HTTP_400_BAD_REQUEST: _deps.Responses.installed,
+    },
+)
+async def install(
+    config: Config,
+    user: schemas.UserCreate,
+    current_config: Config | None = Depends(Config.load),
+):
+    if current_config is not None:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST)
+
+    await config.save()
+    Connection.connect(await config.db.db_engine)
+
+    async for db in Connection.get():
+        # user.capabilities.append("admin")
+
+        schemas.User.create(
+            db=db,
+            user=user,
+            crypt_context=await config.crypto.crypt_context,
+        )
+
+
 @router.put(
     "/config",
     responses={
-        status.HTTP_200_OK: {
-            "content": None,
-        },
-        status.HTTP_403_FORBIDDEN: {
-            "description": "Must be admin",
-            "content": None,
-        },
+        status.HTTP_200_OK: _deps.Responses.ok,
+        status.HTTP_400_BAD_REQUEST: _deps.Responses.not_installed,
+        status.HTTP_401_UNAUTHORIZED: _deps.Responses.needs_user,
+        status.HTTP_403_FORBIDDEN: _deps.Responses.needs_admin,
     },
 )
 async def set_config(
     new_config: Config,
     current_config: Config | None = Depends(Config.load),
     current_user: schemas.User | None = Depends(_deps.get_current_user),
-):
-    print(current_config, current_user)
-
-    if current_config is not None:
-        # server is configured, needs authorization
-        if current_user is None or "admin" not in current_user.capabilities:
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
-
-    if new_config.jwt.secret is None:
-        new_config.jwt.secret = token_hex(32)
-
-    await new_config.save()
-    Connection.connect(await new_config.db.db_engine)
-
-
-@router.post(
-    "/user",
-    responses={
-        status.HTTP_200_OK: {
-            "content": None,
-        },
-        status.HTTP_400_BAD_REQUEST: {
-            "description": "Server is not configured",
-            "content": None,
-        },
-    },
-)
-async def add_user(
-    user: schemas.UserCreate,
-    current_config: Config | None = Depends(Config.load),
-    db: Session | None = Depends(Connection.get),
 ):
     if current_config is None:
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST)
 
-    user.capabilities.append("admin")
+    if (current_user is None
+            or schemas.UserCapability.admin not in current_user.capabilities):
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
 
-    schemas.User.create(
-        db=db,
-        user=user,
-        crypt_context=await current_config.crypto.crypt_context,
-    )
+    await new_config.save()
+    Connection.connect(await new_config.db.db_engine)

api/kiwi_vpn_api/routers/user.py

@@ -47,3 +47,39 @@ async def get_current_user(
     current_user: schemas.User | None = Depends(_deps.get_current_user),
 ):
     return current_user
+
+
+@router.post(
+    "/new",
+    responses={
+        status.HTTP_200_OK: _deps.Responses.ok,
+        status.HTTP_400_BAD_REQUEST: _deps.Responses.not_installed,
+        status.HTTP_401_UNAUTHORIZED: _deps.Responses.needs_user,
+        status.HTTP_403_FORBIDDEN: _deps.Responses.needs_admin,
+        status.HTTP_409_CONFLICT: _deps.Responses.entry_exists,
+    },
+    response_model=schemas.User,
+)
+async def add_user(
+    user: schemas.UserCreate,
+    current_config: Config | None = Depends(Config.load),
+    current_user: schemas.User | None = Depends(_deps.get_current_user),
+    db: Session | None = Depends(Connection.get),
+):
+    if current_config is None:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST)
+
+    if (current_user is None
+            or schemas.UserCapability.admin not in current_user.capabilities):
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
+
+    new_user = schemas.User.create(
+        db=db,
+        user=user,
+        crypt_context=await current_config.crypto.crypt_context,
+    )
+
+    if new_user is None:
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT)
+
+    return new_user