741 lines
27 KiB
Python
741 lines
27 KiB
Python
# Copyright (c) 2025 Patrick Motsch
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# All rights reserved.
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"""
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Invitation routes for the backend API.
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Implements token-based user invitations for self-service onboarding.
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Multi-Tenant Design:
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- Invitations are mandate-scoped (Mandate Admin creates them)
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- Tokens are secure, time-limited, and optionally use-limited
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- Users accept invitations to join mandates/features with predefined roles
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"""
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from fastapi import APIRouter, HTTPException, Depends, Request, Query
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from typing import List, Dict, Any, Optional
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from fastapi import status
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import logging
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from pydantic import BaseModel, Field
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from modules.auth import limiter, getRequestContext, RequestContext, getCurrentUser
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from modules.datamodels.datamodelUam import User
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from modules.datamodels.datamodelInvitation import Invitation
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from modules.interfaces.interfaceDbApp import getRootInterface
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from modules.shared.timeUtils import getUtcTimestamp
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logger = logging.getLogger(__name__)
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router = APIRouter(
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prefix="/api/invitations",
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tags=["Invitations"],
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responses={404: {"description": "Not found"}}
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)
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# =============================================================================
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# Request/Response Models
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# =============================================================================
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class InvitationCreate(BaseModel):
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"""Request model for creating an invitation"""
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targetUsername: str = Field(..., description="Username of the user to invite (must match on acceptance)")
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email: Optional[str] = Field(None, description="Email address to send invitation link (optional)")
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roleIds: List[str] = Field(..., description="Role IDs to assign to the invited user")
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featureInstanceId: Optional[str] = Field(None, description="Optional feature instance access")
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expiresInHours: int = Field(
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72,
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ge=1,
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le=720, # Max 30 days
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description="Hours until invitation expires"
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)
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maxUses: int = Field(
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1,
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ge=1,
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le=100,
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description="Maximum number of times this invitation can be used"
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)
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class InvitationResponse(BaseModel):
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"""Response model for invitation"""
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id: str
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token: str
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mandateId: str
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featureInstanceId: Optional[str]
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roleIds: List[str]
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targetUsername: str
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email: Optional[str]
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createdBy: str
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createdAt: float
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expiresAt: float
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usedBy: Optional[str]
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usedAt: Optional[float]
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revokedAt: Optional[float]
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maxUses: int
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currentUses: int
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inviteUrl: str # Full URL for the invitation
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emailSent: bool = False # Whether invitation email was sent
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class InvitationValidation(BaseModel):
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"""Response model for invitation validation"""
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valid: bool
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reason: Optional[str]
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mandateId: Optional[str]
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mandateName: Optional[str] = None
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featureInstanceId: Optional[str]
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roleIds: List[str]
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roleLabels: List[str] = []
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targetUsername: Optional[str] = None
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# =============================================================================
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# Invitation CRUD Endpoints
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# =============================================================================
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@router.post("/", response_model=InvitationResponse)
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@limiter.limit("30/minute")
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def create_invitation(
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request: Request,
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data: InvitationCreate,
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context: RequestContext = Depends(getRequestContext)
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) -> InvitationResponse:
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"""
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Create a new invitation for the current mandate.
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Requires Mandate-Admin role. Creates a secure token that can be shared
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with users to join the mandate with predefined roles.
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Args:
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data: Invitation creation data
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"""
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if not context.mandateId:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="X-Mandate-Id header is required"
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)
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# Check mandate admin permission
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if not _hasMandateAdminRole(context):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Mandate-Admin role required to create invitations"
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)
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try:
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rootInterface = getRootInterface()
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# Note: targetUsername does NOT need to exist yet!
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# The invitation can be for a user who will register later.
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# When they register with this username (or accept the invitation),
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# they will get the assigned roles.
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# Validate role IDs exist and belong to this mandate or are global
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for roleId in data.roleIds:
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role = rootInterface.getRole(roleId)
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if not role:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"Role '{roleId}' not found"
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)
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# Role must be global or belong to this mandate
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if role.mandateId and str(role.mandateId) != str(context.mandateId):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail=f"Role '{roleId}' belongs to a different mandate"
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)
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# Validate feature instance if provided
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if data.featureInstanceId:
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instance = rootInterface.getFeatureInstance(data.featureInstanceId)
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if not instance:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"Feature instance '{data.featureInstanceId}' not found"
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)
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if str(instance.mandateId) != str(context.mandateId):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Feature instance belongs to a different mandate"
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)
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# Calculate expiration time
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currentTime = getUtcTimestamp()
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expiresAt = currentTime + (data.expiresInHours * 3600)
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# Create invitation
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invitation = Invitation(
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mandateId=str(context.mandateId),
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featureInstanceId=data.featureInstanceId,
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roleIds=data.roleIds,
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targetUsername=data.targetUsername,
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email=data.email,
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createdBy=str(context.user.id),
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expiresAt=expiresAt,
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maxUses=data.maxUses
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)
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createdRecord = rootInterface.db.recordCreate(Invitation, invitation.model_dump())
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if not createdRecord:
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raise ValueError("Failed to create invitation record")
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# Build invite URL
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from modules.shared.configuration import APP_CONFIG
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frontendUrl = APP_CONFIG.get("APP_FRONTEND_URL", "http://localhost:8080")
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inviteUrl = f"{frontendUrl}/invite/{invitation.token}"
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# Send email if email address is provided
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emailSent = False
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if data.email:
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try:
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from modules.connectors.connectorMessagingEmail import ConnectorMessagingEmail
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# Get mandate name for the email
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mandate = rootInterface.getMandate(str(context.mandateId))
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mandateName = mandate.name if mandate else "PowerOn"
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emailConnector = ConnectorMessagingEmail()
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emailSubject = f"Einladung zu {mandateName}"
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emailBody = f"""
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<html>
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<body style="font-family: Arial, sans-serif; line-height: 1.6; color: #333;">
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<h2>Sie wurden eingeladen!</h2>
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<p>Hallo <strong>{data.targetUsername}</strong>,</p>
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<p>Sie wurden eingeladen, dem Mandanten <strong>{mandateName}</strong> beizutreten.</p>
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<p>Klicken Sie auf den folgenden Link, um die Einladung anzunehmen:</p>
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<p style="margin: 20px 0;">
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<a href="{inviteUrl}" style="background-color: #007bff; color: white; padding: 12px 24px; text-decoration: none; border-radius: 4px;">
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Einladung annehmen
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</a>
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</p>
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<p style="color: #666; font-size: 0.9em;">
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Oder kopieren Sie diesen Link in Ihren Browser:<br>
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<code>{inviteUrl}</code>
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</p>
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<p style="color: #666; font-size: 0.9em;">
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Diese Einladung ist {data.expiresInHours} Stunden gültig.
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</p>
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<hr style="border: none; border-top: 1px solid #eee; margin: 20px 0;">
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<p style="color: #999; font-size: 0.8em;">
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Diese E-Mail wurde automatisch von PowerOn gesendet.
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</p>
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</body>
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</html>
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"""
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emailConnector.send(
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recipient=data.email,
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subject=emailSubject,
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message=emailBody
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)
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emailSent = True
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logger.info(f"Invitation email sent to {data.email} for user {data.targetUsername}")
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except Exception as emailError:
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logger.warning(f"Failed to send invitation email to {data.email}: {emailError}")
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# Don't fail the invitation creation if email fails
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# Update the invitation record with emailSent status
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if emailSent:
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rootInterface.db.recordModify(
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Invitation,
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createdRecord.get("id"),
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{"emailSent": True}
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)
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createdRecord["emailSent"] = True
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# If the target user already exists, create an in-app notification
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try:
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existingUser = rootInterface.getUserByUsername(data.targetUsername)
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if existingUser:
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from modules.routes.routeNotifications import createInvitationNotification
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# Get mandate name for notification
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mandate = rootInterface.getMandate(str(context.mandateId))
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mandateName = mandate.mandateLabel if mandate and mandate.mandateLabel else "PowerOn"
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inviterName = context.user.fullName or context.user.username
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createInvitationNotification(
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userId=str(existingUser.id),
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invitationId=str(createdRecord.get("id")),
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mandateName=mandateName,
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inviterName=inviterName
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)
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logger.info(f"Created notification for existing user {data.targetUsername}")
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except Exception as notifError:
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logger.warning(f"Failed to create notification for user {data.targetUsername}: {notifError}")
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# Don't fail the invitation if notification fails
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logger.info(
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f"User {context.user.id} created invitation for user {data.targetUsername} "
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f"to mandate {context.mandateId}, expires in {data.expiresInHours}h"
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)
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return InvitationResponse(
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id=str(createdRecord.get("id")),
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token=str(createdRecord.get("token")),
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mandateId=str(createdRecord.get("mandateId")),
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featureInstanceId=createdRecord.get("featureInstanceId"),
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roleIds=createdRecord.get("roleIds", []),
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targetUsername=createdRecord.get("targetUsername"),
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email=createdRecord.get("email"),
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createdBy=str(createdRecord.get("createdBy")),
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createdAt=createdRecord.get("createdAt"),
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expiresAt=createdRecord.get("expiresAt"),
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usedBy=createdRecord.get("usedBy"),
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usedAt=createdRecord.get("usedAt"),
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revokedAt=createdRecord.get("revokedAt"),
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maxUses=createdRecord.get("maxUses", 1),
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currentUses=createdRecord.get("currentUses", 0),
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inviteUrl=inviteUrl,
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emailSent=emailSent
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)
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except HTTPException:
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raise
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except Exception as e:
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logger.error(f"Error creating invitation: {e}")
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"Failed to create invitation: {str(e)}"
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)
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@router.get("/", response_model=List[Dict[str, Any]])
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@limiter.limit("60/minute")
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def list_invitations(
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request: Request,
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includeUsed: bool = Query(False, description="Include already used invitations"),
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includeExpired: bool = Query(False, description="Include expired invitations"),
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context: RequestContext = Depends(getRequestContext)
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) -> List[Dict[str, Any]]:
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"""
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List invitations for the current mandate.
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Requires Mandate-Admin role. Returns all invitations created for this mandate.
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Args:
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includeUsed: Include invitations that have reached maxUses
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includeExpired: Include expired invitations
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"""
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if not context.mandateId:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="X-Mandate-Id header is required"
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)
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# Check mandate admin permission
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if not _hasMandateAdminRole(context):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Mandate-Admin role required to list invitations"
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)
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try:
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rootInterface = getRootInterface()
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# Get all invitations for this mandate (Pydantic models)
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allInvitations = rootInterface.getInvitationsByMandate(str(context.mandateId))
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currentTime = getUtcTimestamp()
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result = []
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for inv in allInvitations:
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# Skip revoked invitations
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if inv.revokedAt:
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continue
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# Filter by usage
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currentUses = inv.currentUses or 0
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maxUses = inv.maxUses or 1
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if not includeUsed and currentUses >= maxUses:
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continue
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# Filter by expiration
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expiresAt = inv.expiresAt or 0
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if not includeExpired and expiresAt < currentTime:
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continue
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# Build invite URL
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from modules.shared.configuration import APP_CONFIG
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frontendUrl = APP_CONFIG.get("APP_FRONTEND_URL", "http://localhost:8080")
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inviteUrl = f"{frontendUrl}/invite/{inv.token}"
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result.append({
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**inv.model_dump(),
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"inviteUrl": inviteUrl,
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"isExpired": expiresAt < currentTime,
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"isUsedUp": currentUses >= maxUses
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})
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return result
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except HTTPException:
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raise
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except Exception as e:
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logger.error(f"Error listing invitations: {e}")
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"Failed to list invitations: {str(e)}"
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)
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@router.delete("/{invitationId}", response_model=Dict[str, str])
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@limiter.limit("30/minute")
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def revoke_invitation(
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request: Request,
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invitationId: str,
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context: RequestContext = Depends(getRequestContext)
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) -> Dict[str, str]:
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"""
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Revoke an invitation.
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Requires Mandate-Admin role. Revoked invitations cannot be used.
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Args:
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invitationId: Invitation ID
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"""
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if not context.mandateId:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="X-Mandate-Id header is required"
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)
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# Check mandate admin permission
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if not _hasMandateAdminRole(context):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Mandate-Admin role required to revoke invitations"
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)
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try:
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rootInterface = getRootInterface()
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# Get invitation (Pydantic model)
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invitation = rootInterface.getInvitation(invitationId)
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if not invitation:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"Invitation '{invitationId}' not found"
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)
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# Verify mandate access
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if str(invitation.mandateId) != str(context.mandateId):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Access denied to this invitation"
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)
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# Already revoked?
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if invitation.revokedAt:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Invitation is already revoked"
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)
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# Revoke invitation
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rootInterface.db.recordModify(
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Invitation,
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invitationId,
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{"revokedAt": getUtcTimestamp()}
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)
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logger.info(f"User {context.user.id} revoked invitation {invitationId}")
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return {"message": "Invitation revoked", "invitationId": invitationId}
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except HTTPException:
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raise
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except Exception as e:
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logger.error(f"Error revoking invitation {invitationId}: {e}")
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"Failed to revoke invitation: {str(e)}"
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)
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|
|
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# =============================================================================
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# Public Invitation Endpoints (No auth required for validation)
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# =============================================================================
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@router.get("/validate/{token}", response_model=InvitationValidation)
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@limiter.limit("30/minute")
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def validate_invitation(
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request: Request,
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token: str
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) -> InvitationValidation:
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"""
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|
Validate an invitation token (public endpoint).
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|
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Used by the frontend to check if an invitation is valid before
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showing the registration/acceptance form.
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Args:
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token: Invitation token
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"""
|
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try:
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rootInterface = getRootInterface()
|
|
|
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# Find invitation by token (Pydantic model)
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invitation = rootInterface.getInvitationByToken(token)
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|
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if not invitation:
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return InvitationValidation(
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valid=False,
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reason="Invitation not found",
|
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mandateId=None,
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featureInstanceId=None,
|
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roleIds=[]
|
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)
|
|
|
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# Check if revoked
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|
if invitation.revokedAt:
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|
return InvitationValidation(
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valid=False,
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reason="Invitation has been revoked",
|
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mandateId=None,
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featureInstanceId=None,
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roleIds=[]
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)
|
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# Check if expired
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currentTime = getUtcTimestamp()
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expiresAt = invitation.expiresAt or 0
|
|
if expiresAt < currentTime:
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return InvitationValidation(
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valid=False,
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reason="Invitation has expired",
|
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mandateId=None,
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featureInstanceId=None,
|
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roleIds=[]
|
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)
|
|
|
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# Check if used up
|
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currentUses = invitation.currentUses or 0
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maxUses = invitation.maxUses or 1
|
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if currentUses >= maxUses:
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return InvitationValidation(
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valid=False,
|
|
reason="Invitation has reached maximum uses",
|
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mandateId=None,
|
|
featureInstanceId=None,
|
|
roleIds=[]
|
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)
|
|
|
|
# Get additional info for display
|
|
mandateId = invitation.mandateId
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mandateName = None
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|
roleLabels = []
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targetUsername = invitation.targetUsername
|
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|
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# Get mandate name
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mandate = rootInterface.getMandate(str(mandateId)) if mandateId else None
|
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if mandate:
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mandateName = mandate.name
|
|
|
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# Get role names
|
|
roleIds = invitation.roleIds or []
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|
for roleId in roleIds:
|
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role = rootInterface.getRole(roleId)
|
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if role:
|
|
roleLabels.append(role.roleLabel)
|
|
|
|
return InvitationValidation(
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valid=True,
|
|
reason=None,
|
|
mandateId=str(mandateId) if mandateId else None,
|
|
mandateName=mandateName,
|
|
featureInstanceId=str(invitation.featureInstanceId) if invitation.featureInstanceId else None,
|
|
roleIds=roleIds,
|
|
roleLabels=roleLabels,
|
|
targetUsername=targetUsername
|
|
)
|
|
|
|
except Exception as e:
|
|
logger.error(f"Error validating invitation token: {e}")
|
|
return InvitationValidation(
|
|
valid=False,
|
|
reason="Validation error",
|
|
mandateId=None,
|
|
featureInstanceId=None,
|
|
roleIds=[]
|
|
)
|
|
|
|
|
|
@router.post("/accept/{token}", response_model=Dict[str, Any])
|
|
@limiter.limit("10/minute")
|
|
def accept_invitation(
|
|
request: Request,
|
|
token: str,
|
|
currentUser: User = Depends(getCurrentUser)
|
|
) -> Dict[str, Any]:
|
|
"""
|
|
Accept an invitation (requires authentication).
|
|
|
|
The authenticated user joins the mandate with the predefined roles.
|
|
If the user is already a member, their roles are updated.
|
|
|
|
Args:
|
|
token: Invitation token
|
|
"""
|
|
try:
|
|
rootInterface = getRootInterface()
|
|
|
|
# Find invitation by token (Pydantic model)
|
|
invitation = rootInterface.getInvitationByToken(token)
|
|
|
|
if not invitation:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail="Invitation not found"
|
|
)
|
|
|
|
# Validate invitation
|
|
if invitation.revokedAt:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_400_BAD_REQUEST,
|
|
detail="Invitation has been revoked"
|
|
)
|
|
|
|
currentTime = getUtcTimestamp()
|
|
expiresAt = invitation.expiresAt or 0
|
|
if expiresAt < currentTime:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_400_BAD_REQUEST,
|
|
detail="Invitation has expired"
|
|
)
|
|
|
|
currentUses = invitation.currentUses or 0
|
|
maxUses = invitation.maxUses or 1
|
|
if currentUses >= maxUses:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_400_BAD_REQUEST,
|
|
detail="Invitation has reached maximum uses"
|
|
)
|
|
|
|
# Validate username matches - the invitation is bound to a specific user
|
|
targetUsername = invitation.targetUsername
|
|
if targetUsername and currentUser.username != targetUsername:
|
|
logger.warning(
|
|
f"User {currentUser.username} tried to accept invitation meant for {targetUsername}"
|
|
)
|
|
raise HTTPException(
|
|
status_code=status.HTTP_403_FORBIDDEN,
|
|
detail=f"Diese Einladung ist für Benutzer '{targetUsername}' bestimmt"
|
|
)
|
|
|
|
mandateId = str(invitation.mandateId) if invitation.mandateId else None
|
|
roleIds = invitation.roleIds or []
|
|
featureInstanceId = str(invitation.featureInstanceId) if invitation.featureInstanceId else None
|
|
|
|
# Check if user is already a member
|
|
existingMembership = rootInterface.getUserMandate(str(currentUser.id), mandateId)
|
|
|
|
if existingMembership:
|
|
# Update existing membership with additional roles
|
|
for roleId in roleIds:
|
|
try:
|
|
rootInterface.addRoleToUserMandate(str(existingMembership.id), roleId)
|
|
except Exception:
|
|
pass # Role might already be assigned
|
|
|
|
userMandateId = str(existingMembership.id)
|
|
message = "Roles updated for existing membership"
|
|
else:
|
|
# Create new membership
|
|
userMandate = rootInterface.createUserMandate(
|
|
userId=str(currentUser.id),
|
|
mandateId=mandateId,
|
|
roleIds=roleIds
|
|
)
|
|
userMandateId = str(userMandate.id)
|
|
message = "Successfully joined mandate"
|
|
|
|
# Grant feature access if specified
|
|
featureAccessId = None
|
|
if featureInstanceId:
|
|
existingAccess = rootInterface.getFeatureAccess(str(currentUser.id), featureInstanceId)
|
|
if not existingAccess:
|
|
# Create feature access with instance-level roles if any
|
|
instanceRoleIds = [r for r in roleIds if _isInstanceRole(rootInterface, r, featureInstanceId)]
|
|
featureAccess = rootInterface.createFeatureAccess(
|
|
userId=str(currentUser.id),
|
|
featureInstanceId=featureInstanceId,
|
|
roleIds=instanceRoleIds
|
|
)
|
|
featureAccessId = str(featureAccess.id)
|
|
|
|
# Update invitation usage
|
|
rootInterface.db.recordModify(
|
|
Invitation,
|
|
invitation.get("id"),
|
|
{
|
|
"currentUses": invitation.get("currentUses", 0) + 1,
|
|
"usedBy": str(currentUser.id),
|
|
"usedAt": currentTime
|
|
}
|
|
)
|
|
|
|
logger.info(
|
|
f"User {currentUser.id} accepted invitation {invitation.get('id')} "
|
|
f"for mandate {mandateId}"
|
|
)
|
|
|
|
return {
|
|
"message": message,
|
|
"mandateId": mandateId,
|
|
"userMandateId": userMandateId,
|
|
"featureAccessId": featureAccessId,
|
|
"roleIds": roleIds
|
|
}
|
|
|
|
except HTTPException:
|
|
raise
|
|
except Exception as e:
|
|
logger.error(f"Error accepting invitation: {e}")
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to accept invitation: {str(e)}"
|
|
)
|
|
|
|
|
|
# =============================================================================
|
|
# Helper Functions
|
|
# =============================================================================
|
|
|
|
def _hasMandateAdminRole(context: RequestContext) -> bool:
|
|
"""
|
|
Check if the user has mandate admin role in the current context.
|
|
"""
|
|
if context.isSysAdmin:
|
|
return True
|
|
|
|
if not context.roleIds:
|
|
return False
|
|
|
|
try:
|
|
rootInterface = getRootInterface()
|
|
|
|
for roleId in context.roleIds:
|
|
role = rootInterface.getRole(roleId)
|
|
if role:
|
|
# Admin role at mandate level (not feature-instance level)
|
|
if role.roleLabel == "admin" and role.mandateId and not role.featureInstanceId:
|
|
return True
|
|
|
|
return False
|
|
|
|
except Exception as e:
|
|
logger.error(f"Error checking mandate admin role: {e}")
|
|
return False # Fail-safe: no access on error
|
|
|
|
|
|
def _isInstanceRole(interface, roleId: str, featureInstanceId: str) -> bool:
|
|
"""
|
|
Check if a role belongs to a specific feature instance.
|
|
"""
|
|
try:
|
|
role = interface.getRole(roleId)
|
|
if role:
|
|
return str(role.featureInstanceId or "") == str(featureInstanceId)
|
|
return False
|
|
except Exception:
|
|
return False # Fail-safe: assume not instance role on error
|