Day 0x 1C - odoo addons 永丰金流开发(Part 3 - controller)

*** 模组资料夹 payment_sinopac 以 "/" 来代表此资料夹 ***

0x1 Controller

昨天我们有建立了 Controller 资料夹了，
今天补上自定义的 Route，
先变更 /Controller/__init__.py，增加一行程序

from . import main

0x2 开发到一半的 controller/main.py

如题，卡关卡到怀疑人生
程序先奉上，等等来解释一下目前遇到的问题，以及思路

# -*- coding: utf-8 -*-
import logging
import json
from odoo import http
from odoo.http import JsonRequest, Response, request
from odoo.tools import date_utils
from .sinopac_sdk import SinopacSDK
from random import randint
from datetime import datetime, timedelta

_logger = logging.getLogger(__name__)


class OverrideJsonRequest(JsonRequest):
    def _json_response(self, result=None, error=None):
        if '/payment/sinopac/receive_msg' in self.httprequest.full_path:
            response = {}

            if error is not None:
                response = error
            if result is not None:
                response = result
        else:
            response = {
                'jsonrpc': '2.0',
                'id': self.jsonrequest.get('id')
            }

            if error is not None:
                response['error'] = error
            if result is not None:
                response['result'] = result

        mime = 'application/json'
        body = json.dumps(response, default=date_utils.json_default)

        return Response(
            body, status=error and error.pop('http_status', 200) or 200,
            headers=[('Content-Type', mime), ('Content-Length', len(body))]
        )


# 因为在 odoo 里，前底线为受保护成员，但 python 无此规范，所以强制覆写
JsonRequest._json_response = OverrideJsonRequest._json_response


class SinopacController(http.Controller):
    _return_url = '/payment/sinopac/return'
    _backend_url = '/patment/sinopac/receive_msg'
    sdk = SinopacSDK(
        shop_no='ShopNo',
        key_a1='1234567890ABCDEF',
        key_a2='1234567890ABCDEF',
        key_b1='1234567890ABCDEF',
        key_b2='1234567890ABCDEF'
    )

    def request_dataset(self, service: str, data: dict) -> dict:
        sinopac = self.sdk
        nonce = sinopac.get_nonce()
        hash_id = sinopac.calculate_hash_id()
        iv = sinopac.calculate_iv(nonce)

        return {
            'Version': '1.0.0',
            'ShopNo': self.sdk.shop_no,
            'APIService': service,
            'Nonce': nonce,
            'Sign': sinopac.calculate_sign(data, hash_id=hash_id, nonce=nonce),
            'Message': sinopac.encrypt_message(data, hash_id=hash_id, iv=iv),
        }

    @http.route('/payment/sinopac/receive_msg', type='json', methods=['POST'], auth="public", csrf=False)
    def receive_msg(self):
        data = json.loads(request.httprequest.data)
        data = {
            'ShopNo': data.get('ShopNo', ''),
            'PayToken': data.get('PayToken', ''),
        }

        sinopac = self.sdk

        data = sinopac.call_api(
            url='https://apisbx.sinopac.com/funBIZ/QPay.WebAPI/api/Order',
            data=self.request_dataset('OrderPayQuery', data)
        )

        return {'Status': 'S'}

    @http.route('/payment/ecpay/hold_payment_type', type='json', method=['POST'], auth="public", csrf=False)
    def hold_payment_type(self):
        data = json.loads(request.httprequest.data)
        return data

首先，第一个 OverrideJsonRequest，如字面所叙，主要是自定义 output，
因为 odoo json output 会是 jsonrpc 格式，所以今天如果需要回应 BackendURL 时那边就会有问题，
所以花了很大量的时间在找办法突破，也很庆幸地找到突破点
接下来是主轴的部分 SinopacController
- request_dataset : 参照之前 Laravel 的作法
- receive_msg : 接收讯息， Class OverrideJsonRequest 就是为了这个
- hold_payment_type : 主要为使用者要付款时，要把选择的付款方式暂存，不然後端接值的时候不知道是要信用卡还是要 ATM 转帐