fd327f845b
后端： 1.阶段 5 course 服务边界落地 - 新增 cmd/course 独立进程入口，落地 services/course dao/rpc/sv - 新增 gateway/client/course、shared/contracts/course 和 shared/ports course port - 将 /api/v1/course/* HTTP 门面切到 course zrpc，gateway 只保留鉴权、限流、幂等、文件读取和响应透传 - 保留 course 迁移期直写 schedule_events / schedules 权限，维持课程导入两个表同事务写入语义 - 为 course parse-image 补 bytes RPC 契约和 gRPC 消息大小配置，兼容课表图片上传 - 补充 course.rpc 示例配置与阶段 5 文档基线、切流点、残留依赖和 smoke 记录
85 lines
3.0 KiB
Go
85 lines
3.0 KiB
Go
package rpc
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import (
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"errors"
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"log"
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"strings"
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"github.com/LoveLosita/smartflow/backend/respond"
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coursesv "github.com/LoveLosita/smartflow/backend/services/course/sv"
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"google.golang.org/genproto/googleapis/rpc/errdetails"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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const courseErrorDomain = "smartflow.course"
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// grpcErrorFromServiceError 负责把 course 内部错误转换为 gRPC status。
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//
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// 职责边界：
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// 1. respond.Response 保留项目内部 status/info，供 gateway 反解；
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// 2. 图片解析哨兵错误转换为历史 HTTP 兼容错误码；
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// 3. 未分类错误只暴露通用内部错误，详细信息留在服务日志。
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func grpcErrorFromServiceError(err error) error {
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if err == nil {
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return nil
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}
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var resp respond.Response
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if errors.As(err, &resp) {
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return grpcErrorFromResponse(resp)
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}
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switch {
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case errors.Is(err, coursesv.ErrCourseImageParserUnavailable):
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return grpcErrorFromResponse(respond.Response{Status: "50003", Info: "course image parser is not configured"})
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case errors.Is(err, coursesv.ErrCourseImageTooLarge):
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return grpcErrorFromResponse(respond.Response{Status: "40064", Info: "course image too large"})
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case errors.Is(err, coursesv.ErrCourseImageUnsupportedMIME):
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return grpcErrorFromResponse(respond.Response{Status: "40065", Info: "unsupported course image format"})
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case errors.Is(err, coursesv.ErrCourseImageEmpty):
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return grpcErrorFromResponse(respond.Response{Status: "40066", Info: "course image is empty"})
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}
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log.Printf("course rpc internal error: %v", err)
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return status.Error(codes.Internal, "course service internal error")
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}
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func grpcErrorFromResponse(resp respond.Response) error {
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code := grpcCodeFromRespondStatus(resp.Status)
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message := strings.TrimSpace(resp.Info)
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if message == "" {
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message = strings.TrimSpace(resp.Status)
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}
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st := status.New(code, message)
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detail := &errdetails.ErrorInfo{
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Domain: courseErrorDomain,
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Reason: resp.Status,
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Metadata: map[string]string{
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"info": resp.Info,
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},
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}
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withDetails, err := st.WithDetails(detail)
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if err != nil {
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return st.Err()
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}
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return withDetails.Err()
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}
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func grpcCodeFromRespondStatus(statusValue string) codes.Code {
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switch strings.TrimSpace(statusValue) {
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case respond.MissingToken.Status, respond.InvalidToken.Status, respond.InvalidClaims.Status,
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respond.ErrUnauthorized.Status, respond.WrongTokenType.Status, respond.UserLoggedOut.Status:
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return codes.Unauthenticated
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case respond.CourseNotBelongToUser.Status:
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return codes.PermissionDenied
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case respond.MissingParam.Status, respond.WrongParamType.Status, respond.ParamTooLong.Status,
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respond.WrongUserID.Status, respond.WrongCourseID.Status, respond.WrongCourseInfo.Status,
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respond.InsertCourseTwice.Status, respond.ScheduleConflict.Status, respond.InvalidSectionNumber.Status,
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respond.InvalidWeekOrDayOfWeek.Status, respond.InvalidSectionRange.Status,
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respond.TimeOutOfRangeOfThisSemester.Status:
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return codes.InvalidArgument
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}
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if strings.HasPrefix(strings.TrimSpace(statusValue), "5") {
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return codes.Internal
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}
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return codes.InvalidArgument
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}
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