Merge pull request 'feature/oidc-login' (#17) from feature/oidc-login into main

Reviewed-on: #17

Dockerfile

@@ -42,5 +42,11 @@ COPY requirements.txt ./
 COPY entrypoint.sh .
 RUN chmod +x entrypoint.sh
 
+# OIDC-only mode: when "true", password login is rejected, user creation
+# ignores passwords (passwordless users that sign in via a bound OIDC
+# identity / API keys). Overridable at runtime via the same env var.
+ARG HARBORFORGE_OIDC_ONLY=false
+ENV HARBORFORGE_OIDC_ONLY=${HARBORFORGE_OIDC_ONLY}
+
 EXPOSE 8000
 ENTRYPOINT ["./entrypoint.sh"]

app/api/routers/auth.py

@@ -18,6 +18,8 @@ router = APIRouter(prefix="/auth", tags=["Auth"])
 
 @router.post("/token", response_model=Token)
 async def login(form_data: OAuth2PasswordRequestForm = Depends(), db: Session = Depends(get_db)):
+    if settings.HARBORFORGE_OIDC_ONLY:
+        raise HTTPException(status_code=403, detail="Password login is disabled (OIDC only)")
     user = db.query(models.User).filter(models.User.username == form_data.username).first()
     if not user or not verify_password(form_data.password, user.hashed_password or ""):
         raise HTTPException(status_code=401, detail="Incorrect username or password",

app/api/routers/oidc.py

@@ -0,0 +1,350 @@
+"""OIDC (OpenID Connect) login + admin-configurable provider settings.
+
+The OIDC provider can be configured at runtime from the admin UI
+(persisted in the oidc_settings table). A stored row's non-empty fields
+override the OIDC_* env vars; env values act as bootstrap defaults.
+
+Sign-in policy: an OIDC identity must already be bound to an hf user
+(see PUT /users/{id}/oidc-binding). Unbound identities are rejected.
+"""
+import logging
+from datetime import timedelta
+from urllib.parse import urlencode
+
+from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi.responses import RedirectResponse
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+from app.core.config import get_db, settings
+from app.models import models
+from app.models.oidc_settings import OidcSettings
+from app.api.deps import create_access_token, get_current_user, get_current_user_or_apikey
+
+router = APIRouter(prefix="/auth", tags=["Auth"])
+logger = logging.getLogger("harborforge.oidc")
+
+
+# ---- effective config (DB row overrides env) ------------------------------
+
+class EffectiveOidc:
+    def __init__(self, enabled, issuer, client_id, client_secret,
+                 redirect_uri, scopes, post_login_redirect, admin_role):
+        self.enabled = enabled
+        self.issuer = issuer
+        self.client_id = client_id
+        self.client_secret = client_secret
+        self.redirect_uri = redirect_uri
+        self.scopes = scopes or "openid email profile"
+        self.post_login_redirect = post_login_redirect
+        self.admin_role = (admin_role or "admin").strip() or "admin"
+
+    @property
+    def configured(self) -> bool:
+        return bool(self.enabled and self.issuer and self.client_id)
+
+    def fingerprint(self) -> str:
+        return "|".join([
+            str(self.enabled), self.issuer or "", self.client_id or "",
+            self.client_secret or "", self.redirect_uri or "", self.scopes or "",
+        ])
+
+
+def get_effective_oidc(db: Session) -> EffectiveOidc:
+    row = db.query(OidcSettings).filter(OidcSettings.id == 1).first()
+
+    def pick(db_val, env_val):
+        return db_val if (db_val is not None and db_val != "") else env_val
+
+    if row is None:
+        return EffectiveOidc(
+            settings.OIDC_ENABLED, settings.OIDC_ISSUER, settings.OIDC_CLIENT_ID,
+            settings.OIDC_CLIENT_SECRET, settings.OIDC_REDIRECT_URI,
+            settings.OIDC_SCOPES, settings.OIDC_POST_LOGIN_REDIRECT,
+            settings.OIDC_ADMIN_ROLE,
+        )
+    return EffectiveOidc(
+        bool(row.enabled),
+        pick(row.issuer, settings.OIDC_ISSUER),
+        pick(row.client_id, settings.OIDC_CLIENT_ID),
+        pick(row.client_secret, settings.OIDC_CLIENT_SECRET),
+        pick(row.redirect_uri, settings.OIDC_REDIRECT_URI),
+        pick(row.scopes, settings.OIDC_SCOPES),
+        pick(row.post_login_redirect, settings.OIDC_POST_LOGIN_REDIRECT),
+        pick(getattr(row, "admin_role", None), settings.OIDC_ADMIN_ROLE),
+    )
+
+
+# Authlib client cache, rebuilt when the effective config changes.
+_oauth = None
+_oauth_fp = None
+
+
+def _client(cfg: EffectiveOidc):
+    global _oauth, _oauth_fp
+    if not cfg.configured:
+        raise HTTPException(status_code=503, detail="OIDC is not configured")
+    fp = cfg.fingerprint()
+    if _oauth is None or _oauth_fp != fp:
+        from authlib.integrations.starlette_client import OAuth
+        oauth = OAuth()
+        oauth.register(
+            name="oidc",
+            server_metadata_url=cfg.issuer.rstrip("/") + "/.well-known/openid-configuration",
+            client_id=cfg.client_id,
+            client_secret=cfg.client_secret,
+            client_kwargs={"scope": cfg.scopes},
+        )
+        _oauth, _oauth_fp = oauth, fp
+    return _oauth.oidc
+
+
+def _invalidate_client():
+    global _oauth, _oauth_fp
+    _oauth = None
+    _oauth_fp = None
+
+
+def _collect_roles(claims: dict, token: dict) -> set[str]:
+    """Roles from common OIDC claim shapes, across the ID-token/userinfo
+    claims and the (unverified) access token — Keycloak puts realm/client
+    roles in the access token by default."""
+    pools = [claims if isinstance(claims, dict) else {}]
+    at = token.get("access_token")
+    if at:
+        try:
+            from jose import jwt as _jwt
+            pools.append(_jwt.get_unverified_claims(at))
+        except Exception:
+            pass
+    roles: set[str] = set()
+    for p in pools:
+        if not isinstance(p, dict):
+            continue
+        ra = p.get("realm_access")
+        if isinstance(ra, dict):
+            roles.update(ra.get("roles") or [])
+        res = p.get("resource_access")
+        if isinstance(res, dict):
+            for v in res.values():
+                if isinstance(v, dict):
+                    roles.update(v.get("roles") or [])
+        for key in ("roles", "role", "groups"):
+            val = p.get(key)
+            if isinstance(val, str):
+                roles.add(val)
+            elif isinstance(val, (list, tuple)):
+                roles.update(str(x) for x in val)
+    return {str(r).strip().lstrip("/").lower() for r in roles if r}
+
+
+def _frontend(cfg: EffectiveOidc, qs: dict | None = None, fragment: str | None = None) -> str:
+    base = cfg.post_login_redirect or "/"
+    url = base
+    if qs:
+        url += ("&" if "?" in base else "?") + urlencode(qs)
+    if fragment:
+        url += "#" + fragment
+    return url
+
+
+# ---- public auth config ---------------------------------------------------
+
+@router.get("/config")
+def auth_config(db: Session = Depends(get_db)):
+    cfg = get_effective_oidc(db)
+    return {
+        "oidc_enabled": cfg.configured,
+        "oidc_only": bool(settings.HARBORFORGE_OIDC_ONLY),
+        "password_login": not bool(settings.HARBORFORGE_OIDC_ONLY),
+        "oidc_login_url": "/auth/oidc/login",
+    }
+
+
+# ---- sign-in / link flows -------------------------------------------------
+
+@router.get("/oidc/login")
+async def oidc_login(request: Request, db: Session = Depends(get_db)):
+    cfg = get_effective_oidc(db)
+    oidc = _client(cfg)
+    request.session.pop("hf_oidc_uid", None)
+    request.session["hf_oidc_mode"] = "login"
+    return await oidc.authorize_redirect(request, cfg.redirect_uri)
+
+
+@router.get("/oidc/link")
+async def oidc_link(request: Request, db: Session = Depends(get_db),
+                    current_user: models.User = Depends(get_current_user)):
+    if settings.HARBORFORGE_OIDC_ONLY:
+        raise HTTPException(status_code=403, detail="Self-service linking is disabled in OIDC-only mode")
+    cfg = get_effective_oidc(db)
+    oidc = _client(cfg)
+    request.session["hf_oidc_mode"] = "link"
+    request.session["hf_oidc_uid"] = current_user.id
+    return await oidc.authorize_redirect(request, cfg.redirect_uri)
+
+
+@router.get("/oidc/callback")
+async def oidc_callback(request: Request, db: Session = Depends(get_db)):
+    cfg = get_effective_oidc(db)
+    oidc = _client(cfg)
+    mode = request.session.pop("hf_oidc_mode", "login")
+    link_uid = request.session.pop("hf_oidc_uid", None)
+    try:
+        token = await oidc.authorize_access_token(request)
+    except Exception:
+        return RedirectResponse(_frontend(cfg, {"oidc_error": "exchange_failed"}))
+
+    claims = token.get("userinfo") or {}
+    if not claims:
+        try:
+            claims = await oidc.userinfo(token=token)
+        except Exception:
+            claims = {}
+    subject = claims.get("sub")
+    issuer = claims.get("iss") or cfg.issuer
+    if not subject:
+        return RedirectResponse(_frontend(cfg, {"oidc_error": "no_subject"}))
+
+    if mode == "link":
+        if settings.HARBORFORGE_OIDC_ONLY or link_uid is None:
+            return RedirectResponse(_frontend(cfg, {"oidc_error": "link_not_allowed"}))
+        user = db.query(models.User).filter(models.User.id == link_uid).first()
+        if not user:
+            return RedirectResponse(_frontend(cfg, {"oidc_error": "user_gone"}))
+        clash = db.query(models.User).filter(
+            models.User.oidc_issuer == issuer,
+            models.User.oidc_subject == subject,
+            models.User.id != user.id,
+        ).first()
+        if clash:
+            return RedirectResponse(_frontend(cfg, {"oidc_error": "already_bound"}))
+        user.oidc_issuer = issuer
+        user.oidc_subject = subject
+        db.commit()
+        return RedirectResponse(_frontend(cfg, {"oidc_linked": "1"}))
+
+    user = db.query(models.User).filter(
+        models.User.oidc_issuer == issuer,
+        models.User.oidc_subject == subject,
+    ).first()
+
+    # OIDC-only bootstrap: before any admin is linked, an IdP user whose
+    # token carries the configured admin role auto-connects to the unbound
+    # hf admin. Self-closes once any admin is bound.
+    if user is None and settings.HARBORFORGE_OIDC_ONLY:
+        any_admin_bound = db.query(models.User).filter(
+            models.User.is_admin == True,  # noqa: E712
+            models.User.oidc_subject.isnot(None),
+        ).first()
+        if not any_admin_bound and cfg.admin_role.lower() in _collect_roles(claims, token):
+            taken = db.query(models.User).filter(
+                models.User.oidc_issuer == issuer,
+                models.User.oidc_subject == subject,
+            ).first()
+            if taken is None:
+                boot = db.query(models.User).filter(
+                    models.User.is_admin == True,  # noqa: E712
+                    models.User.is_active == True,  # noqa: E712
+                    models.User.oidc_subject.is_(None),
+                ).order_by(models.User.id).first()
+                if boot is not None:
+                    boot.oidc_issuer = issuer
+                    boot.oidc_subject = subject
+                    db.commit()
+                    logger.info("OIDC bootstrap: auto-connected admin '%s' via admin role", boot.username)
+                    user = boot
+
+    if not user or not user.is_active or user.username in ("acc-mgr", "deleted-user"):
+        return RedirectResponse(_frontend(cfg, {"oidc_error": "not_linked"}))
+
+    access_token = create_access_token(
+        data={"sub": str(user.id)},
+        expires_delta=timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES),
+    )
+    return RedirectResponse(_frontend(cfg, fragment=urlencode({"token": access_token})))
+
+
+# ---- admin: OIDC provider settings ----------------------------------------
+
+def _require_admin_any(current_user: models.User = Depends(get_current_user_or_apikey)) -> models.User:
+    """Admin via JWT OR API key. The API-key path is the recovery channel
+    when OIDC-only mode is on and OIDC is not yet/incorrectly configured."""
+    if not getattr(current_user, "is_admin", False):
+        raise HTTPException(status_code=403, detail="Admin privileges required")
+    return current_user
+
+
+class OidcSettingsIn(BaseModel):
+    enabled: bool | None = None
+    issuer: str | None = None
+    client_id: str | None = None
+    client_secret: str | None = None     # blank/omitted = keep existing
+    redirect_uri: str | None = None
+    scopes: str | None = None
+    post_login_redirect: str | None = None
+    admin_role: str | None = None
+
+
+class OidcSettingsOut(BaseModel):
+    enabled: bool
+    issuer: str | None
+    client_id: str | None
+    has_client_secret: bool
+    redirect_uri: str | None
+    scopes: str | None
+    post_login_redirect: str | None
+    admin_role: str
+    oidc_only: bool                       # read-only (deploy env)
+    effective_enabled: bool               # provider actually usable
+    source: str                           # "db" or "env"
+
+
+@router.get("/oidc/settings", response_model=OidcSettingsOut)
+def get_oidc_settings(db: Session = Depends(get_db), _: models.User = Depends(_require_admin_any)):
+    row = db.query(OidcSettings).filter(OidcSettings.id == 1).first()
+    cfg = get_effective_oidc(db)
+    return OidcSettingsOut(
+        enabled=bool(row.enabled) if row else bool(settings.OIDC_ENABLED),
+        issuer=(row.issuer if row else None) or settings.OIDC_ISSUER or None,
+        client_id=(row.client_id if row else None) or settings.OIDC_CLIENT_ID or None,
+        has_client_secret=bool((row.client_secret if row else None) or settings.OIDC_CLIENT_SECRET),
+        redirect_uri=(row.redirect_uri if row else None) or settings.OIDC_REDIRECT_URI or None,
+        scopes=(row.scopes if row else None) or settings.OIDC_SCOPES or None,
+        post_login_redirect=(row.post_login_redirect if row else None) or settings.OIDC_POST_LOGIN_REDIRECT or None,
+        admin_role=cfg.admin_role,
+        oidc_only=bool(settings.HARBORFORGE_OIDC_ONLY),
+        effective_enabled=cfg.configured,
+        source="db" if row else "env",
+    )
+
+
+@router.put("/oidc/settings", response_model=OidcSettingsOut)
+def update_oidc_settings(payload: OidcSettingsIn, db: Session = Depends(get_db),
+                         _: models.User = Depends(_require_admin_any)):
+    row = db.query(OidcSettings).filter(OidcSettings.id == 1).first()
+    if row is None:
+        row = OidcSettings(id=1, enabled=False)
+        db.add(row)
+
+    if payload.enabled is not None:
+        row.enabled = payload.enabled
+    if payload.issuer is not None:
+        row.issuer = payload.issuer.strip() or None
+    if payload.client_id is not None:
+        row.client_id = payload.client_id.strip() or None
+    # client_secret: only overwrite when a non-empty value is supplied
+    if payload.client_secret:
+        row.client_secret = payload.client_secret
+    if payload.redirect_uri is not None:
+        row.redirect_uri = payload.redirect_uri.strip() or None
+    if payload.scopes is not None:
+        row.scopes = payload.scopes.strip() or None
+    if payload.post_login_redirect is not None:
+        row.post_login_redirect = payload.post_login_redirect.strip() or None
+    if payload.admin_role is not None:
+        row.admin_role = payload.admin_role.strip() or None
+
+    db.commit()
+    _invalidate_client()
+    return get_oidc_settings(db=db, _=_)

app/api/routers/users.py

@@ -8,7 +8,7 @@ from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
 from app.api.deps import get_current_user, get_current_user_or_apikey, get_password_hash
-from app.core.config import get_db
+from app.core.config import get_db, settings
 from app.init_wizard import DELETED_USER_USERNAME
 from app.models import models
 from app.models.agent import Agent
@@ -32,6 +32,8 @@ def _user_response(user: models.User) -> dict:
         "role_name": user.role_name,
         "agent_id": user.agent.agent_id if user.agent else None,
         "discord_user_id": user.discord_user_id,
+        "oidc_issuer": user.oidc_issuer,
+        "oidc_subject": user.oidc_subject,
         "created_at": user.created_at,
     }
     return data
@@ -111,6 +113,12 @@ def create_user(
             raise HTTPException(status_code=400, detail="agent_id already in use")
 
     assigned_role = _resolve_user_role(db, user.role_id)
+    # In OIDC-only mode, ignore any supplied password: the user is created
+    # passwordless (cannot password-login) and is expected to sign in via a
+    # bound OIDC identity. API keys still work for such users.
+    if settings.HARBORFORGE_OIDC_ONLY:
+        hashed_password = None
+    else:
         hashed_password = get_password_hash(user.password) if user.password else None
     db_user = models.User(
         username=user.username,
@@ -191,7 +199,7 @@ def update_user(
     if payload.full_name is not None:
         user.full_name = payload.full_name
 
-    if payload.password is not None and payload.password.strip():
+    if payload.password is not None and payload.password.strip() and not settings.HARBORFORGE_OIDC_ONLY:
         user.hashed_password = get_password_hash(payload.password)
 
     if payload.role_id is not None:
@@ -414,3 +422,92 @@ def list_user_worklogs(
     if current_user.id != user.id and not current_user.is_admin:
         raise HTTPException(status_code=403, detail="Forbidden")
     return db.query(WorkLog).filter(WorkLog.user_id == user.id).order_by(WorkLog.logged_date.desc()).limit(limit).all()
+
+
+# ---- OIDC identity binding ------------------------------------------------
+
+class OidcBindingRequest(BaseModel):
+    issuer: str
+    subject: str
+
+
+class OidcBindingResponse(BaseModel):
+    user_id: int
+    username: str
+    oidc_issuer: str | None = None
+    oidc_subject: str | None = None
+
+
+def _assert_can_manage_oidc_binding(db: Session, caller: models.User, target: models.User) -> None:
+    """Global admins may (un)bind anyone. Non-admin account managers may
+    only operate on non-privileged accounts — never on an admin or another
+    privileged account — otherwise binding an attacker-controlled OIDC
+    identity to an admin would be a privilege-escalation primitive."""
+    if getattr(caller, "is_admin", False):
+        return
+    privileged = (
+        getattr(target, "is_admin", False)
+        or target.username in ("acc-mgr", "deleted-user")
+        or _has_global_permission(db, target, "account.create")
+        or _has_global_permission(db, target, "user.reset-apikey")
+    )
+    if privileged:
+        raise HTTPException(
+            status_code=403,
+            detail="Only a global admin may manage the OIDC binding of a privileged account",
+        )
+
+
+@router.put("/{identifier}/oidc-binding", response_model=OidcBindingResponse)
+def bind_user_oidc(
+    identifier: str,
+    payload: OidcBindingRequest,
+    db: Session = Depends(get_db),
+    caller: models.User = Depends(require_account_creator),
+):
+    """Bind an hf user to an external OIDC identity (issuer + subject).
+
+    Admin or account-manager (JWT or API key). Account managers may not
+    target privileged/admin accounts. One OIDC identity maps to at most
+    one user."""
+    issuer = (payload.issuer or "").strip()
+    subject = (payload.subject or "").strip()
+    if not issuer or not subject:
+        raise HTTPException(status_code=400, detail="issuer and subject are required")
+    user = _find_user_by_id_or_username(db, identifier)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    _assert_can_manage_oidc_binding(db, caller, user)
+    clash = db.query(models.User).filter(
+        models.User.oidc_issuer == issuer,
+        models.User.oidc_subject == subject,
+        models.User.id != user.id,
+    ).first()
+    if clash:
+        raise HTTPException(status_code=409, detail=f"OIDC identity already bound to user '{clash.username}'")
+    user.oidc_issuer = issuer
+    user.oidc_subject = subject
+    db.commit()
+    db.refresh(user)
+    return OidcBindingResponse(user_id=user.id, username=user.username,
+                               oidc_issuer=user.oidc_issuer, oidc_subject=user.oidc_subject)
+
+
+@router.delete("/{identifier}/oidc-binding", response_model=OidcBindingResponse)
+def unbind_user_oidc(
+    identifier: str,
+    db: Session = Depends(get_db),
+    caller: models.User = Depends(require_account_creator),
+):
+    """Remove a user's OIDC binding. Admin or account-manager; account
+    managers may not target privileged/admin accounts."""
+    user = _find_user_by_id_or_username(db, identifier)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    _assert_can_manage_oidc_binding(db, caller, user)
+    user.oidc_issuer = None
+    user.oidc_subject = None
+    db.commit()
+    db.refresh(user)
+    return OidcBindingResponse(user_id=user.id, username=user.username,
+                               oidc_issuer=None, oidc_subject=None)

app/core/config.py

@@ -38,6 +38,21 @@ class Settings(BaseSettings):
     ALGORITHM: str = "HS256"
     ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
 
+    # --- OIDC (generic, OpenID Connect discovery) ---
+    OIDC_ENABLED: bool = False
+    OIDC_ISSUER: str = ""            # e.g. https://idp.example.com (we use {issuer}/.well-known/openid-configuration)
+    OIDC_CLIENT_ID: str = ""
+    OIDC_CLIENT_SECRET: str = ""
+    OIDC_REDIRECT_URI: str = ""      # backend callback, e.g. https://hf-api.example.com/auth/oidc/callback
+    OIDC_SCOPES: str = "openid email profile"
+    OIDC_POST_LOGIN_REDIRECT: str = ""   # frontend URL to return to (token in fragment). Falls back to "/"
+    OIDC_ADMIN_ROLE: str = "admin"       # OIDC role name that bootstraps the unbound hf admin (OIDC-only)
+
+    # When true: no password login at all. Password login endpoint rejects,
+    # user creation ignores any password (passwordless user that can only use
+    # API keys / OIDC), and the frontend hides all password UI.
+    HARBORFORGE_OIDC_ONLY: bool = False
+
     class Config:
         env_file = ".env"
 

app/init_wizard.py

@@ -11,6 +11,7 @@ from sqlalchemy.orm import Session
 
 from app.models import models
 from app.models.role_permission import Role, Permission, RolePermission
+from app.models.oidc_settings import OidcSettings
 from app.api.deps import get_password_hash
 
 logger = logging.getLogger("harborforge.init")
@@ -328,6 +329,50 @@ def init_deleted_user(db: Session) -> models.User | None:
     return user
 
 
+def init_oidc_settings(db: Session, oidc_cfg: dict, admin_user: models.User | None) -> None:
+    """Bootstrap OIDC from the wizard config (first init only).
+
+    Creates the single oidc_settings row if absent so the deployment comes
+    up with OIDC configured. If admin_subject is given, binds the bootstrap
+    admin so it can sign in (critical in OIDC-only mode). Idempotent: an
+    existing row / existing admin binding is left untouched so later admin
+    edits via the API are not clobbered on restart."""
+    if not oidc_cfg:
+        return
+
+    existing = db.query(OidcSettings).filter(OidcSettings.id == 1).first()
+    if existing is None:
+        db.add(OidcSettings(
+            id=1,
+            enabled=bool(oidc_cfg.get("enabled", True)),
+            issuer=(oidc_cfg.get("issuer") or "").strip() or None,
+            client_id=(oidc_cfg.get("client_id") or "").strip() or None,
+            client_secret=oidc_cfg.get("client_secret") or None,
+            redirect_uri=(oidc_cfg.get("redirect_uri") or "").strip() or None,
+            scopes=(oidc_cfg.get("scopes") or "").strip() or None,
+            post_login_redirect=(oidc_cfg.get("post_login_redirect") or "").strip() or None,
+            admin_role=(oidc_cfg.get("admin_role") or "").strip() or None,
+        ))
+        db.commit()
+        logger.info("OIDC settings bootstrapped from wizard config")
+
+    admin_subject = (oidc_cfg.get("admin_subject") or "").strip()
+    issuer = (oidc_cfg.get("issuer") or "").strip()
+    if admin_user and admin_subject and issuer and not admin_user.oidc_subject:
+        clash = db.query(models.User).filter(
+            models.User.oidc_issuer == issuer,
+            models.User.oidc_subject == admin_subject,
+            models.User.id != admin_user.id,
+        ).first()
+        if clash:
+            logger.warning("Admin OIDC subject already bound to '%s'; skipping admin bind", clash.username)
+        else:
+            admin_user.oidc_issuer = issuer
+            admin_user.oidc_subject = admin_subject
+            db.commit()
+            logger.info("Bootstrap admin '%s' bound to OIDC subject", admin_user.username)
+
+
 def run_init(db: Session) -> None:
     """Main initialization entry point. Reads config from shared volume."""
     config = load_config()
@@ -360,4 +405,7 @@ def run_init(db: Session) -> None:
     if project_cfg and admin_user:
         init_default_project(db, project_cfg, admin_user.id, admin_user.username)
 
+    # OIDC bootstrap (provider config + optional bootstrap-admin binding)
+    init_oidc_settings(db, config.get("oidc") or {}, admin_user)
+
     logger.info("Initialization complete")

app/main.py

@@ -1,6 +1,9 @@
 """HarborForge API — Agent/人类协同任务管理平台"""
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from starlette.middleware.sessions import SessionMiddleware
+
+from app.core.config import settings
 
 app = FastAPI(
     title="HarborForge API",
@@ -17,6 +20,17 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+# Short-lived signed session cookie — only used to carry the OIDC
+# state/nonce between /auth/oidc/login and the callback.
+app.add_middleware(
+    SessionMiddleware,
+    secret_key=settings.SECRET_KEY,
+    session_cookie="hf_oidc",
+    same_site="lax",
+    https_only=False,
+    max_age=600,
+)
+
 # Health & version (kept at top level)
 @app.get("/health", tags=["System"])
 def health_check():
@@ -65,8 +79,10 @@ from app.api.routers.meetings import router as meetings_router
 from app.api.routers.essentials import router as essentials_router
 from app.api.routers.schedule_type import router as schedule_type_router
 from app.api.routers.calendar import router as calendar_router
+from app.api.routers.oidc import router as oidc_router
 
 app.include_router(auth_router)
+app.include_router(oidc_router)
 app.include_router(tasks_router)
 app.include_router(projects_router)
 app.include_router(users_router)
@@ -277,6 +293,18 @@ def _migrate_schema():
         if _has_table(db, "users") and not _has_column(db, "users", "discord_user_id"):
             db.execute(text("ALTER TABLE users ADD COLUMN discord_user_id VARCHAR(32) NULL"))
 
+        # --- users OIDC binding (issuer + subject), unique together ---
+        if _has_table(db, "users") and not _has_column(db, "users", "oidc_issuer"):
+            db.execute(text("ALTER TABLE users ADD COLUMN oidc_issuer VARCHAR(255) NULL"))
+        if _has_table(db, "users") and not _has_column(db, "users", "oidc_subject"):
+            db.execute(text("ALTER TABLE users ADD COLUMN oidc_subject VARCHAR(255) NULL"))
+        if _has_table(db, "users") and _has_column(db, "users", "oidc_subject"):
+            _ensure_unique_index(db, "users", "uq_users_oidc_identity", "oidc_issuer, oidc_subject")
+
+        # --- oidc_settings.admin_role (added after the table shipped) ---
+        if _has_table(db, "oidc_settings") and not _has_column(db, "oidc_settings", "admin_role"):
+            db.execute(text("ALTER TABLE oidc_settings ADD COLUMN admin_role VARCHAR(128) NULL"))
+
         # --- monitored_servers.api_key for heartbeat v2 ---
         if _has_table(db, "monitored_servers") and not _has_column(db, "monitored_servers", "api_key"):
             db.execute(text("ALTER TABLE monitored_servers ADD COLUMN api_key VARCHAR(64) NULL"))
@@ -403,7 +431,7 @@ def _sync_default_user_roles(db):
 @app.on_event("startup")
 def startup():
     from app.core.config import Base, engine, SessionLocal
-    from app.models import models, webhook, apikey, activity, milestone, notification, worklog, monitor, role_permission, task, support, meeting, proposal, propose, essential, agent, calendar, minimum_workload, schedule_type
+    from app.models import models, webhook, apikey, activity, milestone, notification, worklog, monitor, role_permission, task, support, meeting, proposal, propose, essential, agent, calendar, minimum_workload, schedule_type, oidc_settings
     Base.metadata.create_all(bind=engine)
     _migrate_schema()
 

app/models/models.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, Enum, Boolean, JSON, Time
+from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, Enum, Boolean, JSON, Time, UniqueConstraint
 from sqlalchemy.orm import relationship
 from sqlalchemy.sql import func
 from app.core.config import Base
@@ -66,6 +66,9 @@ class Project(Base):
 
 class User(Base):
     __tablename__ = "users"
+    __table_args__ = (
+        UniqueConstraint("oidc_issuer", "oidc_subject", name="uq_users_oidc_identity"),
+    )
 
     id = Column(Integer, primary_key=True, index=True)
     username = Column(String(50), unique=True, nullable=False)
@@ -73,6 +76,10 @@ class User(Base):
     hashed_password = Column(String(255), nullable=True)
     full_name = Column(String(100), nullable=True)
     discord_user_id = Column(String(32), nullable=True)
+    # OIDC binding: an hf user is linked to at most one external OIDC identity
+    # (issuer + subject). Unique together so one IdP identity maps to one user.
+    oidc_issuer = Column(String(255), nullable=True)
+    oidc_subject = Column(String(255), nullable=True)
     is_active = Column(Boolean, default=True)
     is_admin = Column(Boolean, default=False)
     role_id = Column(Integer, ForeignKey("roles.id"), nullable=True)

app/models/oidc_settings.py

@@ -0,0 +1,25 @@
+from sqlalchemy import Column, Integer, String, Boolean, DateTime
+from sqlalchemy.sql import func
+from app.core.config import Base
+
+
+class OidcSettings(Base):
+    """Single-row (id=1) runtime OIDC configuration.
+
+    When a row exists its non-empty fields override the OIDC_* env vars,
+    so the provider can be configured from the admin UI without a redeploy.
+    """
+    __tablename__ = "oidc_settings"
+
+    id = Column(Integer, primary_key=True, default=1)
+    enabled = Column(Boolean, default=False, nullable=False)
+    issuer = Column(String(255), nullable=True)
+    client_id = Column(String(255), nullable=True)
+    client_secret = Column(String(512), nullable=True)
+    redirect_uri = Column(String(512), nullable=True)
+    scopes = Column(String(255), nullable=True)
+    post_login_redirect = Column(String(512), nullable=True)
+    # OIDC role name that, in OIDC-only mode, auto-connects an unbound
+    # hf admin on first login (bootstrap). Default "admin".
+    admin_role = Column(String(128), nullable=True)
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())

app/schemas/schemas.py

@@ -194,6 +194,8 @@ class UserResponse(UserBase):
     role_name: Optional[str] = None
     agent_id: Optional[str] = None
     discord_user_id: Optional[str] = None
+    oidc_issuer: Optional[str] = None
+    oidc_subject: Optional[str] = None
     created_at: datetime
 
     class Config:

docs/oidc-test-plan.md

@@ -0,0 +1,99 @@
+# OIDC 接入 — 测试点描述
+
+覆盖范围：OIDC 登录、hf 用户与 OIDC 身份绑定、`HARBORFORGE_OIDC_ONLY`
+模式、管理员 OIDC 配置页面。涉及仓库分支 `feature/oidc-login`
+（`HarborForge.Backend` + `HarborForge.Frontend`）。
+
+“本地状态” 列：✅ 已用真实 Keycloak 在本地栈端到端验证；🟡 已用接口/构建
+验证但未走真实 IdP UI；⬜ 待测。
+
+## 0. 测试环境
+
+- 后端 `http://127.0.0.1:18000`、前端 `http://127.0.0.1:13000`（本地验证栈）
+- IdP：Keycloak 容器，realm `hf`，confidential client `hf-client`
+- IdP 测试用户：`tester` / `Test123!`（emailVerified=true）
+- 关键约束：**issuer URL 必须浏览器与后端容器都能用同一地址访问**
+  （否则 token `iss` 校验失败）。本地用宿主机 IP 统一两端。
+- 配置项（运行时 env 或 DB，DB 覆盖 env）：
+  `OIDC_ENABLED / OIDC_ISSUER / OIDC_CLIENT_ID / OIDC_CLIENT_SECRET /
+  OIDC_REDIRECT_URI / OIDC_SCOPES / OIDC_POST_LOGIN_REDIRECT`；
+  部署级 `HARBORFORGE_OIDC_ONLY`（Docker ARG/ENV，前后端均有）。
+
+## 1. 管理员 OIDC 配置（页面 + API）
+
+| # | 测试点 | 步骤 | 预期 | 本地 |
+|---|--------|------|------|------|
+|1.1|读取初始配置|`GET /auth/oidc/settings`（admin）|返回 `source=env`，`has_client_secret=false`，`effective_enabled` 反映 env|✅|
+|1.2|保存配置|`PUT /auth/oidc/settings` 填 issuer/client/secret/redirect/scopes/post_login|200，`source=db`，`effective_enabled=true`|✅|
+|1.3|client_secret 只写不回显|保存后再 `GET`|响应无明文 secret，仅 `has_client_secret=true`|✅|
+|1.4|secret 留空保留原值|`PUT` 不带 `client_secret`|原 secret 不变，登录仍可用|🟡|
+|1.5|配置即时生效|保存后 `GET /auth/config`|`oidc_enabled` 立即变化，无需重启|✅|
+|1.6|页面仅 admin 可见|非 admin 访问 `/settings/oidc`|被重定向到 `/`；侧栏无入口；API 返回 401/403|🟡|
+|1.7|页面展示 Callback URL|打开 OIDC 设置页|醒目显示需在 IdP 注册的 redirect/callback URL、当前状态与配置来源|🟡|
+
+## 2. OIDC 登录流程（授权码）
+
+| # | 测试点 | 步骤 | 预期 | 本地 |
+|---|--------|------|------|------|
+|2.1|发起登录|`GET /auth/oidc/login`|302 跳转到 IdP authorize 端点（state/nonce 入会话 cookie）|✅|
+|2.2|IdP 登录成功回跳|在 IdP 输入 `tester/Test123!`|302 回 `…/auth/oidc/callback?code=…&state=…`|✅|
+|2.3|回调换码并签发|后端处理 callback|校验 ID token(JWKS)→定位绑定用户→签发 hf JWT→302 到前端 `post_login#token=…`|✅|
+|2.4|登录态可用|用返回 token 调 `GET /auth/me`|返回被绑定的 hf 用户|✅|
+|2.5|前端按钮|登录页点 “Sign in with SSO”|全页跳转到后端 `/auth/oidc/login`|🟡|
+|2.6|未配置 OIDC|`OIDC` 关闭时访问 `/auth/oidc/login`|503 “OIDC is not configured”|🟡|
+|2.7|token 交换失败|code 失效/被篡改|回前端 `?oidc_error=exchange_failed`，登录页提示|⬜|
+
+## 3. hf 用户 ↔ OIDC 身份绑定
+
+| # | 测试点 | 步骤 | 预期 | 本地 |
+|---|--------|------|------|------|
+|3.1|管理员绑定|`PUT /users/{id}/oidc-binding` {issuer,subject}（admin 或 acc-manager）|200，用户响应含 `oidc_issuer/oidc_subject`|✅|
+|3.2|未绑定身份拒绝登录|解绑后用该 IdP 账号登录|回 `?oidc_error=not_linked`，**不签发 token**（不自动开号）|✅|
+|3.3|身份唯一性|把同一 (issuer,subject) 绑到另一用户|409 冲突|✅|
+|3.4|解绑|`DELETE /users/{id}/oidc-binding`|200，绑定清空|✅|
+|3.5|绑定鉴权|无凭据 / 普通用户调用绑定 API|401 / 403|✅|
+|3.6|API key 通道|admin 的 API key 调用绑定/配置 API|200（支持 JWT 或 API key）|✅|
+|3.7|自助绑定（非 ONLY）|登录用户点侧栏 “Link OIDC account” 走一次 OIDC|回 `?oidc_linked=1`，当前账号绑定成功|🟡|
+|3.8|自助绑定冲突|自助绑定到已被占用的身份|`?oidc_error=already_bound`|⬜|
+|3.9|OIDC_ONLY 下禁自助|ONLY 模式访问 `/auth/oidc/link`|403（仅管理员 API 可绑）|🟡|
+
+## 4. HARBORFORGE_OIDC_ONLY 模式
+
+| # | 测试点 | 步骤 | 预期 | 本地 |
+|---|--------|------|------|------|
+|4.1|配置反映|ONLY=true 时 `GET /auth/config`|`oidc_only=true`，`password_login=false`|✅|
+|4.2|禁用密码登录|`POST /auth/token`|403 “Password login is disabled (OIDC only)”|✅|
+|4.3|建用户忽略密码|`POST /users` 带 password|201，但 DB `hashed_password=NULL`（无密码用户）|✅|
+|4.4|改用户忽略密码|`PATCH /users/{id}` 带 password|密码不被设置|🟡|
+|4.5|无密码用户仍可用|对该用户绑定 OIDC、生成 API key|绑定 200、`reset-apikey` 200；可经 OIDC 登录|✅|
+|4.6|前端隐藏密码 UI|ONLY 模式打开登录页 / 用户管理页|无用户名密码框；用户管理无密码/重置密码组件|🟡|
+|4.7|防锁死恢复|ONLY 模式且 OIDC 配错|管理员 API key 仍可调 `GET/PUT /auth/oidc/settings` 修复|✅|
+
+## 5. 回归（不破坏既有功能）
+
+| # | 测试点 | 步骤 | 预期 | 本地 |
+|---|--------|------|------|------|
+|5.1|默认模式密码登录|未开 ONLY 时 `POST /auth/token`|正常 200 签发 token|✅|
+|5.2|用户响应新增字段|`GET /users` `/users/{id}` `/auth/me`|含 `oidc_issuer/oidc_subject`（未绑定为 null）|✅|
+|5.3|启动迁移幂等|新旧库重复启动后端|`users.oidc_*` 列与 `oidc_settings` 表存在，无报错|✅|
+|5.4|前端构建|`npm run build`（Docker 镜像）|TS 编译通过|✅|
+|5.5|后端导入|镜像内 `import app.main`|无导入错误，OIDC 路由注册|✅|
+|5.6|镜像参数|前后端 Dockerfile|含 `ARG/ENV HARBORFORGE_OIDC_ONLY`|✅|
+
+## 6. 安全检查点
+
+- ID token 经 IdP JWKS 校验（Authlib discovery + nonce）；签发的是 hf 原有
+  HS256 JWT，依赖强 `SECRET_KEY`（弱 key 后端拒绝启动）。
+- `client_secret` 持久化在 DB，接口永不回显。
+- 绑定/配置接口强制 admin（或 account-manager 绑定），支持 API key 作为
+  OIDC_ONLY 下的恢复通道。
+- 未绑定 OIDC 身份一律拒绝，不自动开号（防越权开户）。
+- `redirect_uri` 必须在 IdP 精确注册；后端回跳前端地址来自服务端配置
+  （`post_login_redirect`），不接受客户端传入，避免开放重定向。
+
+## 7. 已知限制 / 待补
+
+- 真实浏览器交互（点按钮、IdP 同意页、SameSite cookie 行为）需人工过一遍
+  （本地已用 curl 无头跑通授权码全流程，逻辑等价）。
+- 多 IdP / 多 issuer、token 刷新、登出联动（SLO）未实现，超出本次范围。
+- 自助绑定相关 UI（3.7/3.8）建议人工在浏览器复核。

requirements.txt

@@ -12,3 +12,5 @@ alembic==1.13.1
 python-dotenv==1.0.0
 httpx==0.27.0
 requests==2.31.0
+authlib==1.3.2
+itsdangerous==2.2.0