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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| package handle | ||
|
|
||
| import ( | ||
| "encoding/csv" | ||
| "fmt" | ||
| "github.com/dotbitHQ/das-lib/common" | ||
| "github.com/dotbitHQ/das-lib/core" | ||
| api_code "github.com/dotbitHQ/das-lib/http_api" | ||
| "github.com/dotbitHQ/das-lib/sign" | ||
| "github.com/gin-gonic/gin" | ||
| "net/http" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| type ReqCouponDownload struct { | ||
| core.ChainTypeAddress | ||
| Account string `json:"account" binding:"required"` | ||
| Cid string `json:"cid" binding:"required"` | ||
| Timestamp int64 `json:"timestamp" binding:"required"` | ||
| Signature string `json:"signature" binding:"required"` | ||
| } | ||
|
|
||
| func (h *HttpHandle) CouponDownload(ctx *gin.Context) { | ||
| var ( | ||
| funcName = "CouponDownload" | ||
| clientIp, remoteAddrIP = GetClientIp(ctx) | ||
| req ReqCouponDownload | ||
| apiResp api_code.ApiResp | ||
| err error | ||
| ) | ||
| log.Info("ApiReq:", funcName, clientIp, remoteAddrIP, ctx) | ||
|
|
||
| if err := ctx.ShouldBindJSON(&req); err != nil { | ||
| log.Error("ShouldBindJSON err: ", err.Error(), funcName, clientIp, remoteAddrIP, ctx) | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, "params invalid") | ||
| ctx.JSON(http.StatusOK, apiResp) | ||
| return | ||
| } | ||
|
|
||
| if err = h.doCouponDownload(ctx, &req, &apiResp); err != nil { | ||
| log.Error("doCouponDownload err:", err.Error(), funcName, clientIp, ctx) | ||
| } | ||
| ctx.JSON(http.StatusOK, apiResp) | ||
| } | ||
|
|
||
| func (h *HttpHandle) doCouponDownload(ctx *gin.Context, req *ReqCouponDownload, apiResp *api_code.ApiResp) error { | ||
| if time.Now().After(time.UnixMilli(req.Timestamp).Add(time.Minute)) { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, "timestamp expired, valid for 1 minutes") | ||
| return nil | ||
| } | ||
|
|
||
| res, err := req.ChainTypeAddress.FormatChainTypeAddress(h.DasCore.NetType(), false) | ||
| if err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, "params invalid") | ||
| return nil | ||
| } | ||
| address := common.FormatAddressPayload(res.AddressPayload, res.DasAlgorithmId) | ||
|
|
||
| signMsg := fmt.Sprintf("%s%s%d", req.Account, req.Cid, req.Timestamp) | ||
| if ok, err := sign.VerifyPersonalSignature(common.Hex2Bytes(req.Signature), []byte(signMsg), address); err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, err.Error()) | ||
| return nil | ||
| } else if !ok { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, "signature invalid") | ||
| return nil | ||
| } | ||
|
|
||
| setInfo, err := h.DbDao.GetCouponSetInfo(req.Cid) | ||
| if err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeDbError, "Failed to query coupon set info") | ||
| return nil | ||
| } | ||
| if setInfo.Id == 0 { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParamsInvalid, "cid no exist") | ||
| return nil | ||
| } | ||
|
|
||
| accInfo, err := h.DbDao.GetAccountInfoByAccountId(setInfo.AccountId) | ||
| if err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeDbError, "Failed to query parent account") | ||
| return nil | ||
| } | ||
| if accInfo.Id == 0 { | ||
| apiResp.ApiRespErr(api_code.ApiCodeParentAccountNotExist, "parent account does not exist") | ||
| return nil | ||
| } | ||
| if !strings.EqualFold(accInfo.Manager, address) && !strings.EqualFold(accInfo.Owner, address) { | ||
| apiResp.ApiRespErr(api_code.ApiCodeNoAccountPermissions, "no account permissions") | ||
| return nil | ||
| } | ||
|
|
||
| couponList, err := h.DbDao.FindCouponCode(req.Cid) | ||
| if err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeDbError, "Failed to query coupon code") | ||
| return nil | ||
| } | ||
|
|
||
| if len(couponList) == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| items := [][]string{ | ||
| {"Code", "status"}, | ||
| } | ||
| for _, v := range couponList { | ||
| items = append(items, []string{v.Code, fmt.Sprint(v.Status)}) | ||
| } | ||
|
|
||
| ctx.Header("Content-Type", "text/csv") | ||
| ctx.Header("Content-Disposition", fmt.Sprintf("attachment;filename=%s.csv", req.Cid)) | ||
| wr := csv.NewWriter(ctx.Writer) | ||
| if err := wr.WriteAll(items); err != nil { | ||
| apiResp.ApiRespErr(api_code.ApiCodeError500, err.Error()) | ||
| return nil | ||
| } | ||
| wr.Flush() | ||
| return nil | ||
| } |
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