refactor(payment): 支付插件 - 宿主仅通过 RPC 包加载并保护订单版本

2026-09-02 16:15:57 +08:00
parent d6bbdbe27b
commit 38e715ea3f
45 changed files with 1584 additions and 203 deletions
--- a/backend/payment-plugins/rpc_runner.go
+++ b/backend/payment-plugins/rpc_runner.go
@@ -0,0 +1,96 @@
+package paymentplugins
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+)
+
+const rpcVersion = "yingce.payment/v1"
+
+type rpcRequest struct {
+	Version   string              `json:"version"`
+	Operation string              `json:"operation"`
+	Config    Config              `json:"config,omitempty"`
+	Request   json.RawMessage     `json:"request,omitempty"`
+	Headers   map[string][]string `json:"headers,omitempty"`
+	Body      string              `json:"bodyBase64,omitempty"`
+	BillDate  string              `json:"billDate,omitempty"`
+}
+
+type rpcResponse struct {
+	OK      bool   `json:"ok"`
+	Code    string `json:"code,omitempty"`
+	Message string `json:"message,omitempty"`
+	Data    any    `json:"data,omitempty"`
+}
+
+func RunRPC(provider Provider, input io.Reader, output io.Writer) error {
+	decoder := json.NewDecoder(io.LimitReader(input, 2<<20))
+	var request rpcRequest
+	if err := decoder.Decode(&request); err != nil {
+		return writeRPC(output, rpcResponse{Code: "invalid_request", Message: "请求不是有效 JSON"})
+	}
+	if request.Version != rpcVersion {
+		return writeRPC(output, rpcResponse{Code: "unsupported_version", Message: "不支持的支付插件协议版本"})
+	}
+	if provider == nil {
+		return writeRPC(output, rpcResponse{Code: "provider_unavailable", Message: "支付插件未配置"})
+	}
+	ctx := context.Background()
+	var value any
+	var err error
+	switch request.Operation {
+	case "validate_config":
+		err = provider.ValidateConfig(request.Config)
+	case "create_order":
+		var valueRequest CreateRequest
+		err = json.Unmarshal(request.Request, &valueRequest)
+		if err == nil {
+			value, err = provider.CreateOrder(ctx, request.Config, valueRequest)
+		}
+	case "query_order":
+		var valueRequest QueryRequest
+		err = json.Unmarshal(request.Request, &valueRequest)
+		if err == nil {
+			value, err = provider.QueryOrder(ctx, request.Config, valueRequest)
+		}
+	case "close_order":
+		var valueRequest CloseRequest
+		err = json.Unmarshal(request.Request, &valueRequest)
+		if err == nil {
+			value, err = provider.CloseOrder(ctx, request.Config, valueRequest)
+		}
+	case "verify_notification":
+		body, decodeErr := base64.StdEncoding.DecodeString(request.Body)
+		err = decodeErr
+		if err == nil {
+			value, err = provider.VerifyNotification(ctx, request.Config, http.Header(request.Headers), body)
+		}
+	case "download_trade_bill":
+		billDate, parseErr := time.Parse("2006-01-02", request.BillDate)
+		err = parseErr
+		if err == nil {
+			value, err = provider.DownloadTradeBill(ctx, request.Config, billDate)
+		}
+	default:
+		err = fmt.Errorf("unknown payment operation %q", request.Operation)
+	}
+	if err != nil {
+		response := rpcResponse{Code: "provider_error", Message: err.Error()}
+		if providerErr, ok := err.(*ProviderError); ok && strings.TrimSpace(providerErr.Code) != "" {
+			response.Code = providerErr.Code
+		}
+		return writeRPC(output, response)
+	}
+	return writeRPC(output, rpcResponse{OK: true, Data: value})
+}
+
+func writeRPC(output io.Writer, response rpcResponse) error {
+	return json.NewEncoder(output).Encode(response)
+}