258 lines
11 KiB
Python
258 lines
11 KiB
Python
# Copyright (c) 2025 Patrick Motsch
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# All rights reserved.
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"""Abacus ERP accounting connector.
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API docs: https://downloads.abacus.ch/fileadmin/ablage/abaconnect/htmlfiles/docs/restapi/abacus_rest_api.html
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Auth: OAuth 2.0 Client Credentials (Service User).
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Each Abacus instance has its own host URL; there is no central cloud endpoint.
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Entity API uses OData V4 format.
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"""
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import base64
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import logging
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import time
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from typing import List, Dict, Any, Optional
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import aiohttp
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from ..accountingConnectorBase import (
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BaseAccountingConnector,
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AccountingBooking,
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AccountingChart,
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ConnectorConfigField,
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SyncResult,
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)
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logger = logging.getLogger(__name__)
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class AccountingConnectorAbacus(BaseAccountingConnector):
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def __init__(self):
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self._tokenCache: Dict[str, Dict[str, Any]] = {}
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def getConnectorType(self) -> str:
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return "abacus"
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def getConnectorLabel(self) -> Dict[str, str]:
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return {"en": "Abacus ERP", "de": "Abacus ERP", "fr": "Abacus ERP"}
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def getRequiredConfigFields(self) -> List[ConnectorConfigField]:
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return [
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ConnectorConfigField(
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key="abacusHost",
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label={"en": "Abacus Host URL", "de": "Abacus Host-URL", "fr": "URL Hôte Abacus"},
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fieldType="text",
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secret=False,
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placeholder="e.g. abacus.meinefirma.ch",
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),
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ConnectorConfigField(
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key="mandant",
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label={"en": "Mandant Number", "de": "Mandantennummer", "fr": "Numéro de mandant"},
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fieldType="text",
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secret=False,
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placeholder="e.g. 7777",
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),
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ConnectorConfigField(
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key="clientId",
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label={"en": "Client ID", "de": "Client-ID", "fr": "ID Client"},
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fieldType="text",
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secret=False,
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),
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ConnectorConfigField(
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key="clientSecret",
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label={"en": "Client Secret", "de": "Client-Secret", "fr": "Secret Client"},
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fieldType="password",
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secret=True,
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),
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]
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def _buildBaseUrl(self, config: Dict[str, Any]) -> str:
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host = config["abacusHost"].rstrip("/")
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if not host.startswith("http"):
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host = f"https://{host}"
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return host
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async def _getAccessToken(self, config: Dict[str, Any]) -> Optional[str]:
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"""Obtain an OAuth access token using client_credentials grant.
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Tokens are cached and refreshed when expired (default 600s).
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"""
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cacheKey = f"{config.get('abacusHost')}_{config.get('clientId')}"
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cached = self._tokenCache.get(cacheKey)
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if cached and cached.get("expiresAt", 0) > time.time() + 30:
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return cached["accessToken"]
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baseUrl = self._buildBaseUrl(config)
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try:
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async with aiohttp.ClientSession() as session:
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# Step 1: discover token endpoint
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async with session.get(f"{baseUrl}/.well-known/openid-configuration", timeout=aiohttp.ClientTimeout(total=10)) as resp:
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if resp.status != 200:
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logger.error(f"Abacus OIDC discovery failed: HTTP {resp.status}")
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return None
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oidc = await resp.json()
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tokenEndpoint = oidc.get("token_endpoint")
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if not tokenEndpoint:
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logger.error("Abacus OIDC: no token_endpoint found")
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return None
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# Step 2: request token
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credentials = base64.b64encode(f"{config['clientId']}:{config['clientSecret']}".encode()).decode()
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headers = {"Authorization": f"Basic {credentials}", "Content-Type": "application/x-www-form-urlencoded"}
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async with session.post(tokenEndpoint, headers=headers, data="grant_type=client_credentials", timeout=aiohttp.ClientTimeout(total=15)) as tokenResp:
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if tokenResp.status != 200:
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body = await tokenResp.text()
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logger.error(f"Abacus token request failed: HTTP {tokenResp.status}: {body[:200]}")
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return None
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tokenData = await tokenResp.json()
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accessToken = tokenData.get("access_token")
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expiresIn = tokenData.get("expires_in", 600)
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self._tokenCache[cacheKey] = {"accessToken": accessToken, "expiresAt": time.time() + expiresIn}
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return accessToken
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except Exception as e:
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logger.error(f"Abacus token acquisition error: {e}")
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return None
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def _buildEntityUrl(self, config: Dict[str, Any], entity: str) -> str:
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baseUrl = self._buildBaseUrl(config)
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mandant = config["mandant"]
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return f"{baseUrl}/api/entity/v1/{mandant}/{entity}"
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async def _buildAuthHeaders(self, config: Dict[str, Any]) -> Optional[Dict[str, str]]:
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token = await self._getAccessToken(config)
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if not token:
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return None
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return {"Authorization": f"Bearer {token}", "Accept": "application/json", "Content-Type": "application/json"}
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async def testConnection(self, config: Dict[str, Any]) -> SyncResult:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return SyncResult(success=False, errorMessage="Failed to obtain access token")
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try:
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async with aiohttp.ClientSession() as session:
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url = self._buildEntityUrl(config, "Accounts?$top=1")
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async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=15)) as resp:
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if resp.status == 200:
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return SyncResult(success=True)
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body = await resp.text()
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return SyncResult(success=False, errorMessage=f"HTTP {resp.status}: {body[:200]}")
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except Exception as e:
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return SyncResult(success=False, errorMessage=str(e))
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async def getChartOfAccounts(self, config: Dict[str, Any], accountType: Optional[str] = None) -> List[AccountingChart]:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return []
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charts: List[AccountingChart] = []
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url: Optional[str] = self._buildEntityUrl(config, "Accounts")
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try:
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async with aiohttp.ClientSession() as session:
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while url:
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async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=30)) as resp:
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if resp.status != 200:
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break
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data = await resp.json()
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for item in data.get("value", []):
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charts.append(AccountingChart(
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accountNumber=str(item.get("AccountNumber", item.get("Id", ""))),
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label=item.get("Name", item.get("Description", "")),
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accountType=item.get("AccountType", None),
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))
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url = data.get("@odata.nextLink")
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except Exception as e:
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logger.error(f"Abacus getChartOfAccounts error: {e}")
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return charts
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async def pushBooking(self, config: Dict[str, Any], booking: AccountingBooking) -> SyncResult:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return SyncResult(success=False, errorMessage="Failed to obtain access token")
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try:
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lines = []
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for line in booking.lines:
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entry: Dict[str, Any] = {
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"AccountId": line.accountNumber,
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"Text": line.description or booking.description,
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}
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if line.debitAmount > 0:
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entry["DebitAmount"] = line.debitAmount
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if line.creditAmount > 0:
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entry["CreditAmount"] = line.creditAmount
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if line.taxCode:
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entry["TaxCode"] = line.taxCode
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if line.costCenter:
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entry["CostCenterId"] = line.costCenter
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lines.append(entry)
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payload = {
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"JournalDate": booking.bookingDate,
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"Reference": booking.reference,
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"Text": booking.description,
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"Lines": lines,
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}
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async with aiohttp.ClientSession() as session:
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url = self._buildEntityUrl(config, "GeneralJournalEntries")
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async with session.post(url, headers=headers, json=payload, timeout=aiohttp.ClientTimeout(total=30)) as resp:
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body = await resp.json() if resp.content_type and "json" in resp.content_type else {"raw": await resp.text()}
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if resp.status in (200, 201):
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externalId = str(body.get("Id", "")) if isinstance(body, dict) else None
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return SyncResult(success=True, externalId=externalId, rawResponse=body)
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return SyncResult(success=False, errorMessage=f"HTTP {resp.status}", rawResponse=body)
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except Exception as e:
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return SyncResult(success=False, errorMessage=str(e))
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async def getBookingStatus(self, config: Dict[str, Any], externalId: str) -> SyncResult:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return SyncResult(success=False, errorMessage="Failed to obtain access token")
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try:
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async with aiohttp.ClientSession() as session:
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url = self._buildEntityUrl(config, f"GeneralJournalEntries({externalId})")
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async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=15)) as resp:
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if resp.status == 200:
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return SyncResult(success=True, externalId=externalId)
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return SyncResult(success=False, errorMessage=f"HTTP {resp.status}")
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except Exception as e:
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return SyncResult(success=False, errorMessage=str(e))
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async def getCustomers(self, config: Dict[str, Any]) -> List[Dict[str, Any]]:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return []
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try:
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async with aiohttp.ClientSession() as session:
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url = self._buildEntityUrl(config, "Debtors")
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async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=30)) as resp:
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if resp.status != 200:
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return []
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data = await resp.json()
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return data.get("value", [])
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except Exception as e:
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logger.error(f"Abacus getCustomers error: {e}")
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return []
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async def getVendors(self, config: Dict[str, Any]) -> List[Dict[str, Any]]:
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headers = await self._buildAuthHeaders(config)
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if not headers:
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return []
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try:
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async with aiohttp.ClientSession() as session:
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url = self._buildEntityUrl(config, "Creditors")
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async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=30)) as resp:
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if resp.status != 200:
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return []
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data = await resp.json()
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return data.get("value", [])
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except Exception as e:
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logger.error(f"Abacus getVendors error: {e}")
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return []
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