121 lines
2.8 KiB
Go
121 lines
2.8 KiB
Go
package accountlogic
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import (
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"context"
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"crypto/rand"
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"fmt"
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"math/big"
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"strconv"
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ers "code.30cm.net/digimon/library-go/errors"
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"app-cloudep-member-server/gen_result/pb/member"
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"app-cloudep-member-server/internal/svc"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type GenerateRefreshCodeLogic struct {
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ctx context.Context
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svcCtx *svc.ServiceContext
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logx.Logger
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}
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func NewGenerateRefreshCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GenerateRefreshCodeLogic {
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return &GenerateRefreshCodeLogic{
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ctx: ctx,
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svcCtx: svcCtx,
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Logger: logx.WithContext(ctx),
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}
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}
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type generateRefreshCodeReq struct {
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Account string `json:"account" validate:"account"`
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// CodeType 1 register_email, 2 register_phone, 3 forget_email
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CodeType int32 `json:"code_type" validate:"required,oneof=1 2 3"`
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}
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// GenerateRefreshCode 這個帳號驗證碼（十分鐘），通用的
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func (l *GenerateRefreshCodeLogic) GenerateRefreshCode(in *member.GenerateRefreshCodeReq) (*member.GenerateRefreshCodeResp, error) {
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// 驗證資料
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if err := l.svcCtx.Validate.ValidateAll(&generateRefreshCodeReq{
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Account: in.GetAccount(),
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CodeType: in.GetCodeType(),
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}); err != nil {
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return nil, ers.InvalidFormat(err.Error())
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}
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checkType, status := getCodeNameByCode(in.GetCodeType())
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if !status {
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return nil, ers.InvalidFormat(fmt.Errorf("failed to get correct code type").Error())
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}
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rk := fmt.Sprintf("verify:%s:%s", checkType, in.GetAccount())
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// 拿過就不要再拿了
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get, err := l.svcCtx.Redis.Get(rk)
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if err != nil {
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return nil, ers.DBError("failed to connect to redis", err.Error())
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}
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if get != "" {
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return &member.GenerateRefreshCodeResp{
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Data: &member.VerifyCode{
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VerifyCode: get,
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},
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}, nil
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}
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code, err := generateVerifyCode(6)
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if !status {
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return nil, ers.ArkInternal(err.Error())
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}
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err = l.svcCtx.Redis.Setex(rk, code, 600)
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if err != nil {
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return nil, ers.ArkInternal(err.Error())
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}
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return &member.GenerateRefreshCodeResp{
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Data: &member.VerifyCode{
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VerifyCode: code,
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},
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}, nil
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}
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var codeMap = map[int32]string{
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1: "email",
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2: "phone",
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3: "forget_email",
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}
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func getCodeNameByCode(code int32) (string, bool) {
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res, ok := codeMap[code]
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if !ok {
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return "", false
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}
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return res, true
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}
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func generateVerifyCode(digits int) (string, error) {
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if digits <= 0 {
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// 預設為六位數
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digits = 6
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}
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// 計算最大值 (10^digits - 1)
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exp := new(big.Int).Exp(big.NewInt(10), big.NewInt(int64(digits)), nil)
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// 生成隨機數
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randomNumber, err := rand.Int(rand.Reader, exp)
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if err != nil {
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return "", err
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}
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// 將隨機數轉換為 string
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verifyCode := strconv.Itoa(int(randomNumber.Int64()))
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// 如果隨機數的位數少於指定的位數，則補 0
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if len(verifyCode) < digits {
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verifyCode = fmt.Sprintf("%0*d", digits, randomNumber)
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}
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return verifyCode, nil
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}
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