feat(backend): implement sharing functionality with CreateShareInfo and GetShareInfo endpoints for file and text sharing

backend/internal/controllers/share.go

@@ -0,0 +1,135 @@
+package controllers
+
+import (
+	"backend/internal/models"
+	"backend/internal/utils"
+	"backend/middleware"
+	"errors"
+	"time"
+
+	"github.com/labstack/echo/v4"
+	gonanoid "github.com/matoous/go-nanoid/v2"
+)
+
+type CreateShareProps struct {
+	Type models.ShareType `json:"type"`
+	// ShareId string           `json:"id"`
+	Config   ShareConfig `json:"config"`
+	Data     string      `json:"data"`
+	FileName string      `json:"file_name"`
+}
+
+type ShareConfig struct {
+	ExpireAt      string   `json:"expire_time"`
+	ViewNum       int64    `json:"download_nums"`
+	HasPassword   bool     `json:"has_password"`
+	Password      string   `json:"password"`
+	HasNotify     bool     `json:"has_notify"`
+	NotifyEmail   []string `json:"notify_email"`
+	HasPickupCode bool     `json:"has_pickup_code"`
+}
+
+func CreateShareInfo(c echo.Context) error {
+	cc := c.(*middleware.CustomContext)
+
+	r := new(CreateShareProps)
+	if err := cc.Bind(r); err != nil {
+		return utils.HTTPErrorHandler(c, err)
+	}
+
+	ExpireTime, err := time.Parse(time.RFC3339, r.Config.ExpireAt)
+	if err != nil {
+		return utils.HTTPErrorHandler(c, errors.New("分享过期时间格式错误"))
+	}
+
+	if r.Data == "" || (r.Type != models.ShareTypeFile && r.Type != models.ShareTypeText) || ExpireTime.Before(time.Now()) || r.Config.ViewNum < 1 {
+		return utils.HTTPErrorHandler(c, errors.New("调用接口参数错误"))
+	}
+
+	id, err := gonanoid.New()
+	if err != nil {
+		return utils.HTTPErrorHandler(c, err)
+	}
+
+	if r.Type == models.ShareTypeFile {
+		fileInfo, err := models.GetRedisFileInfo(r.Data)
+		if err != nil {
+			return utils.HTTPErrorHandler(c, err)
+		}
+		if fileInfo == nil {
+			return utils.HTTPErrorHandler(c, errors.New("分享文件不存在"))
+		}
+		if fileInfo.FileType != models.FileTypeUpload {
+			return utils.HTTPErrorHandler(c, errors.New("分享文件状态错误"))
+		}
+	}
+
+	models.SetRedisShareInfo(id, models.RedisShareInfo{
+		Data:      r.Data,
+		Type:      r.Type,
+		CreatedAt: time.Now().Unix(),
+		Owner:     cc.Auth.(string),
+		// ExpireAt:    r.Config.ExpireAt,
+		ViewNum:     r.Config.ViewNum,
+		Password:    r.Config.Password,
+		NotifyEmail: r.Config.NotifyEmail,
+		FileName:    r.FileName,
+	}, time.Until(ExpireTime))
+
+	return utils.HTTPSuccessHandler(c, map[string]any{
+		"id":            id,
+		"file_name":     r.FileName,
+		"download_nums": r.Config.ViewNum,
+		"expire_at":     ExpireTime.Unix(),
+	})
+}
+
+type GetShareProps struct {
+	ShareId string `param:"id"`
+}
+
+func GetShareInfo(c echo.Context) error {
+	cc := c.(*middleware.CustomContext)
+	shareId := cc.Param("id")
+	if shareId == "" {
+		return utils.HTTPErrorHandler(c, errors.New("缺少分享ID"))
+	}
+
+	shareInfo, err := models.GetRedisShareInfo(shareId)
+	if err != nil {
+		return utils.HTTPErrorHandler(c, err)
+	}
+	if shareInfo == nil {
+		return utils.HTTPErrorHandler(c, errors.New("分享不存在"))
+	}
+
+	if shareInfo.Type == models.ShareTypeFile {
+		fileInfo, err := models.GetRedisFileInfo(shareInfo.Data)
+		if err != nil {
+			return utils.HTTPErrorHandler(c, err)
+		}
+		if fileInfo == nil {
+			return utils.HTTPErrorHandler(c, errors.New("分享文件不存在"))
+		}
+		if fileInfo.FileType != models.FileTypeUpload {
+			return utils.HTTPErrorHandler(c, errors.New("分享文件状态错误"))
+		}
+		return utils.HTTPSuccessHandler(c, map[string]any{
+			"id":            shareId,
+			"file_name":     shareInfo.FileName,
+			"download_nums": shareInfo.ViewNum,
+			"expire_at":     shareInfo.ExpireAt,
+			"owner":         shareInfo.Owner,
+			"size":          fileInfo.FileSize,
+			"mime_type":     fileInfo.MimeType,
+		})
+	}
+
+	return utils.HTTPSuccessHandler(c, map[string]any{
+		"id":            shareId,
+		"file_name":     shareInfo.FileName,
+		"download_nums": shareInfo.ViewNum,
+		"expire_at":     shareInfo.ExpireAt,
+		"owner":         shareInfo.Owner,
+	})
+}

backend/internal/models/share.go

@@ -12,14 +12,15 @@ import (
 
 type RedisShareInfo struct {
 	// Id          string    `json:"id"`
-	CreatedAt   time.Time `json:"created_at"`
+	CreatedAt   int64     `json:"created_at"`
 	Owner       string    `json:"owner"`
 	Type        ShareType `json:"type"`
 	Data        string    `json:"data"` // 分享数据 文件分享为文件id 文本分享为文本内容
-	ExpireAt    time.Time `json:"expire_time"`
+	ExpireAt    int64     `json:"expire_time"`
 	ViewNum     int64     `json:"download_nums"`
 	Password    string    `json:"password"`
 	NotifyEmail []string  `json:"notify_email"`
+	FileName    string    `json:"file_name"`
 	// PickupCode  bool      `json:"pickup_code"`
 }