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199
WebAdmin/paypal_payment.py
Executable file
199
WebAdmin/paypal_payment.py
Executable file
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import requests
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from django.conf import settings
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from django.http import JsonResponse
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from django.views.decorators.csrf import csrf_exempt
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from datetime import datetime
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from .models import Order, Plan, User
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import json
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import logging
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logger = logging.getLogger(__name__)
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def get_paypal_access_token():
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"""获取 PayPal 访问令牌"""
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print("正在获取 PayPal 访问令牌...")
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url = f"https://api.{settings.PAYPAL_MODE}.paypal.com/v1/oauth2/token"
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auth = (
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settings.PAYPAL_CLIENT_ID_SANDBOX if settings.PAYPAL_MODE == 'sandbox' else settings.PAYPAL_CLIENT_ID_PRODUCTION,
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settings.PAYPAL_SECRET_KEY_SANDBOX if settings.PAYPAL_MODE == 'sandbox' else settings.PAYPAL_SECRET_KEY_PRODUCTION
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)
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headers = {
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"Accept": "application/json",
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"Accept-Language": "en_US"
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}
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data = {
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"grant_type": "client_credentials"
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}
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response = requests.post(url, headers=headers, data=data, auth=auth)
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if response.status_code == 200:
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access_token = response.json().get('access_token')
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print(f"获取的访问令牌: {access_token}")
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return access_token
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else:
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print(f"获取 PayPal 访问令牌失败: {response.text}")
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return None
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@csrf_exempt
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def create_paypal_payment(request):
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"""创建 PayPal 支付"""
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if request.method == 'POST':
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try:
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print("创建 PayPal 支付开始...")
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data = json.loads(request.body)
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plan_id = data.get('plan_id')
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payment_method = data.get('payment_method', 'paypal')
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# 获取当前用户信息
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user = request.user
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# 验证用户和计划是否存在
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if not user.is_authenticated:
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print("用户未认证")
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return JsonResponse({"code": 401, "message": "用户未认证", "data": {}})
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try:
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plan = Plan.objects.get(id=plan_id)
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print(f"找到的套餐: {plan.title}")
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except Plan.DoesNotExist:
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print("套餐不存在")
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return JsonResponse({"code": 400, "message": "套餐不存在", "data": {}})
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access_token = get_paypal_access_token()
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if not access_token:
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return JsonResponse({"code": 500, "message": "无法获取支付访问令牌", "data": {}})
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# 配置支付请求
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url = f"https://api.{settings.PAYPAL_MODE}.paypal.com/v1/payments/payment"
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headers = {
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"Content-Type": "application/json",
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"Authorization": f"Bearer {access_token}"
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}
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payload = {
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"intent": "sale",
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"payer": {"payment_method": "paypal"},
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"redirect_urls": {
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"return_url": f"{settings.PAYPAL_RETURN_URL}",
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"cancel_url": f"{settings.PAYPAL_CANCEL_URL}"
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},
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"transactions": [{
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"item_list": {
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"items": [{
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"name": plan.title,
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"sku": str(plan.id),
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"price": str(plan.price),
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"currency": "USD",
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"quantity": 1
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}]
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},
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"amount": {
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"total": str(plan.price),
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"currency": "USD"
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},
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"description": f"购买 {plan.title} 计划"
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}]
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}
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print(f"支付请求Payload: {json.dumps(payload, indent=2)}")
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response = requests.post(url, headers=headers, json=payload)
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if response.status_code == 201:
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payment_id = response.json().get('id')
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approval_url = None
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for link in response.json().get('links', []):
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if link.get('rel') == "approval_url":
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approval_url = link.get('href')
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break
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# 检查订单是否已经存在，防止重复创建订单
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if Order.objects.filter(order_id=payment_id).exists():
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return JsonResponse({"code": 400, "message": "订单已存在", "data": {}})
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# 创建订单并使用PayPal返回的paymentId作为order_id
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order = Order.objects.create(
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order_id=payment_id, # 使用PayPal的支付ID作为订单ID
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user=user,
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username=user.username,
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plan=plan,
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amount=plan.price,
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payment_method=payment_method,
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status='pending'
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)
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print(f"订单创建成功，订单ID: {order.order_id}")
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if approval_url:
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print(f"支付批准URL: {approval_url}")
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return JsonResponse({"code": 200, "message": "支付创建成功", "data": {"approval_url": approval_url}})
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else:
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print("未找到支付批准URL")
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return JsonResponse({"code": 400, "message": "未找到支付批准URL", "data": {}})
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else:
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print(f"支付创建失败: {response.status_code}, {response.json()}")
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return JsonResponse({"code": 400, "message": "支付创建失败", "data": response.json()})
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except json.JSONDecodeError:
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print("请求体不是有效的JSON")
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return JsonResponse({"code": 400, "message": "请求体不是有效的JSON", "data": {}})
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except Exception as e:
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print(f"支付创建过程中发生异常: {str(e)}")
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return JsonResponse({"code": 500, "message": f"支付创建过程中发生异常: {str(e)}", "data": {}})
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else:
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return JsonResponse({"code": 405, "message": "方法不允许", "data": {}})
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@csrf_exempt
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def execute_paypal_payment(request):
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"""执行 PayPal 支付"""
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if request.method == 'POST':
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try:
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data = json.loads(request.body)
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payment_id = data.get('paymentId')
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payer_id = data.get('PayerID')
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if not payment_id or not payer_id:
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return JsonResponse({"code": 400, "message": "缺少支付ID或付款人ID", "data": {}})
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order = Order.objects.get(order_id=payment_id)
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if order.status == 'completed':
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return JsonResponse({"code": 400, "message": "订单已支付", "data": {}})
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# 获取PayPal访问令牌
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access_token = get_paypal_access_token()
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if not access_token:
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return JsonResponse({"code": 500, "message": "无法获取支付访问令牌", "data": {}})
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# 执行支付确认请求
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url = f"https://api.{settings.PAYPAL_MODE}.paypal.com/v1/payments/payment/{payment_id}/execute"
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headers = {
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"Content-Type": "application/json",
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"Authorization": f"Bearer {access_token}"
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}
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payload = {
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"payer_id": payer_id
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}
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response = requests.post(url, headers=headers, json=payload)
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if response.status_code == 200:
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try:
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order.status = 'completed'
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order.updated_at = datetime.now()
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order.save()
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# 更新用户积分
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user = order.user
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user.points += order.plan.credits_per_month
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user.save()
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return JsonResponse({"code": 200, "message": "支付成功", "data": {}})
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except Order.DoesNotExist:
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return JsonResponse({"code": 400, "message": "订单不存在", "data": {}})
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else:
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return JsonResponse({"code": 400, "message": "支付执行失败", "data": response.json()})
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except json.JSONDecodeError:
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return JsonResponse({"code": 400, "message": "请求体不是有效的JSON", "data": {}})
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except Exception as e:
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return JsonResponse({"code": 500, "message": f"支付执行过程中发生异常: {str(e)}", "data": {}})
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else:
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return JsonResponse({"code": 405, "message": "方法不允许", "data": {}})
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