Init V4 community edition (#2265)

* Init V4 community edition

* Init V4 community edition

service/user/info.go

@@ -0,0 +1,67 @@
+package user
+
+import (
+	"context"
+	"github.com/cloudreve/Cloudreve/v4/application/dependency"
+	"github.com/cloudreve/Cloudreve/v4/ent"
+	"github.com/cloudreve/Cloudreve/v4/inventory"
+	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/fs"
+	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/manager"
+	"github.com/cloudreve/Cloudreve/v4/pkg/hashid"
+	"github.com/cloudreve/Cloudreve/v4/pkg/serializer"
+	"github.com/gin-gonic/gin"
+	"github.com/samber/lo"
+)
+
+func GetUser(c *gin.Context) (*ent.User, error) {
+	uid := hashid.FromContext(c)
+	dep := dependency.FromContext(c)
+	userClient := dep.UserClient()
+	ctx := context.WithValue(c, inventory.LoadUserGroup{}, true)
+	return userClient.GetByID(ctx, uid)
+}
+
+func GetUserCapacity(c *gin.Context) (*fs.Capacity, error) {
+	user := inventory.UserFromContext(c)
+	dep := dependency.FromContext(c)
+	m := manager.NewFileManager(dep, user)
+	defer m.Recycle()
+
+	return m.Capacity(c)
+}
+
+type (
+	SearchUserService struct {
+		Keyword string `form:"keyword" binding:"required,min=2"`
+	}
+	SearchUserParamCtx struct{}
+)
+
+const resultLimit = 10
+
+func (s *SearchUserService) Search(c *gin.Context) ([]*ent.User, error) {
+	dep := dependency.FromContext(c)
+	userClient := dep.UserClient()
+	res, err := userClient.SearchActive(c, resultLimit, s.Keyword)
+	if err != nil {
+		return nil, serializer.NewError(serializer.CodeDBError, "Failed to search user", err)
+	}
+
+	return res, nil
+}
+
+// ListAllGroups lists all groups.
+func ListAllGroups(c *gin.Context) ([]*ent.Group, error) {
+	dep := dependency.FromContext(c)
+	groupClient := dep.GroupClient()
+	res, err := groupClient.ListAll(c)
+	if err != nil {
+		return nil, serializer.NewError(serializer.CodeDBError, "Failed to list all groups", err)
+	}
+
+	res = lo.Filter(res, func(g *ent.Group, index int) bool {
+		return g.ID != inventory.AnonymousGroupID
+	})
+
+	return res, nil
+}