Feat: preview file in dashboard

routers/controllers/admin.go

@@ -326,3 +326,33 @@ func AdminBanUser(c *gin.Context) {
 		c.JSON(200, ErrorResponse(err))
 	}
 }
+
+// AdminListFile 列出文件
+func AdminListFile(c *gin.Context) {
+	var service admin.AdminListService
+	if err := c.ShouldBindJSON(&service); err == nil {
+		res := service.Files()
+		c.JSON(200, res)
+	} else {
+		c.JSON(200, ErrorResponse(err))
+	}
+}
+
+// AdminGetFile 获取文件
+func AdminGetFile(c *gin.Context) {
+	var service admin.FileService
+	if err := c.ShouldBindUri(&service); err == nil {
+		res := service.Get(c)
+		// 是否需要重定向
+		if res.Code == -301 {
+			c.Redirect(301, res.Data.(string))
+			return
+		}
+		// 是否有错误发生
+		if res.Code != 0 {
+			c.JSON(200, res)
+		}
+	} else {
+		c.JSON(200, ErrorResponse(err))
+	}
+}

routers/router.go

@@ -379,6 +379,14 @@ func InitMasterRouter() *gin.Engine {
 					user.PATCH("ban/:id", controllers.AdminBanUser)
 				}
 
+				file := admin.Group("file")
+				{
+					// 列出文件
+					file.POST("list", controllers.AdminListFile)
+					// 预览文件
+					file.GET("preview/:id", controllers.AdminGetFile)
+				}
+
 			}
 
 			// 用户

service/admin/file.go

@@ -0,0 +1,84 @@
+package admin
+
+import (
+	"context"
+	model "github.com/HFO4/cloudreve/models"
+	"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
+	"github.com/HFO4/cloudreve/pkg/serializer"
+	"github.com/HFO4/cloudreve/service/explorer"
+	"github.com/gin-gonic/gin"
+	"strings"
+)
+
+// FileService 文件ID服务
+type FileService struct {
+	ID uint `uri:"id" json:"id" binding:"required"`
+}
+
+// Get 预览文件
+func (service *FileService) Get(c *gin.Context) serializer.Response {
+	file, err := model.GetFilesByIDs([]uint{service.ID}, 0)
+	if err != nil {
+		return serializer.Err(serializer.CodeNotFound, "文件不存在", err)
+	}
+
+	ctx := context.WithValue(context.Background(), fsctx.FileModelCtx, &file[0])
+	var subService explorer.FileIDService
+	res := subService.PreviewContent(ctx, c, false)
+
+	return res
+}
+
+// Files 列出文件
+func (service *AdminListService) Files() serializer.Response {
+	var res []model.File
+	total := 0
+
+	tx := model.DB.Model(&model.File{})
+	if service.OrderBy != "" {
+		tx = tx.Order(service.OrderBy)
+	}
+
+	for k, v := range service.Conditions {
+		tx = tx.Where(k+" = ?", v)
+	}
+
+	if len(service.Searches) > 0 {
+		search := ""
+		for k, v := range service.Searches {
+			search += k + " like '%" + v + "%' OR "
+		}
+		search = strings.TrimSuffix(search, " OR ")
+		tx = tx.Where(search)
+	}
+
+	// 计算总数用于分页
+	tx.Count(&total)
+
+	// 查询记录
+	tx.Limit(service.PageSize).Offset((service.Page - 1) * service.PageSize).Find(&res)
+
+	// 查询对应用户
+	users := make(map[uint]model.User)
+	for _, file := range res {
+		users[file.UserID] = model.User{}
+	}
+
+	userIDs := make([]uint, 0, len(users))
+	for k := range users {
+		userIDs = append(userIDs, k)
+	}
+
+	var userList []model.User
+	model.DB.Where("id in (?)", userIDs).Find(&userList)
+
+	for _, v := range userList {
+		users[v.ID] = v
+	}
+
+	return serializer.Response{Data: map[string]interface{}{
+		"total": total,
+		"items": res,
+		"users": users,
+	}}
+}