func (*GroupsController) preCheckUser(ctx *gin.Context, paramJSON *tat.ParamGroupUserJSON) (tat.Group, error) {
user := tat.User{}
found, err := userDB.FindByUsername(&user, paramJSON.Username)
if err != nil {
ctx.AbortWithError(http.StatusInternalServerError, err)
return tat.Group{}, err
}
if !found {
e := errors.New("username " + paramJSON.Username + " does not exist")
ctx.AbortWithError(http.StatusInternalServerError, e)
return tat.Group{}, e
}
group, errfinding := groupDB.FindByName(paramJSON.Groupname)
if errfinding != nil {
ctx.AbortWithError(http.StatusInternalServerError, errfinding)
return tat.Group{}, errfinding
}
if isTatAdmin(ctx) { // if Tat admin, ok
return *group, nil
}
if !groupDB.IsUserAdmin(group, getCtxUsername(ctx)) {
e := fmt.Errorf("user %s is not admin on group %s", user.Username, group.Name)
ctx.AbortWithError(http.StatusInternalServerError, e)
return tat.Group{}, e
}
return *group, nil
}
// Update a group
// only for Tat admin
func (g *GroupsController) Update(ctx *gin.Context) {
var paramJSON groupUpdateJSON
ctx.Bind(¶mJSON)
group, err := GetParam(ctx, "group")
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Group in query"})
return
}
groupToUpdate, err := groupDB.FindByName(group)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Group"})
return
}
if paramJSON.Name != groupToUpdate.Name {
groupnameExists := groupDB.IsGroupnameExists(paramJSON.Name)
if groupnameExists {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Group Name already exists"})
return
}
}
user, err := PreCheckUser(ctx)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while fetching user"})
return
}
err = groupDB.Update(groupToUpdate, paramJSON.Name, paramJSON.Description, &user)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while update group"})
return
}
if paramJSON.Name != groupToUpdate.Name {
if err := topicDB.ChangeGroupnameOnTopics(groupToUpdate.Name, paramJSON.Name); err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while update group on topics"})
return
}
}
ctx.JSON(http.StatusCreated, "")
}
// Delete deletes requested group
// only for Tat admin
func (g *GroupsController) Delete(ctx *gin.Context) {
groupName, err := GetParam(ctx, "group")
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Group in query"})
return
}
groupToDelete, err := groupDB.FindByName(groupName)
if err != nil {
ctx.JSON(http.StatusNotFound, gin.H{"error": "Invalid Group"})
return
}
user, err := PreCheckUser(ctx)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while fetching user"})
return
}
c := tat.TopicCriteria{}
c.Skip = 0
c.Limit = 10
c.Group = groupToDelete.Name
count, topics, err := topicDB.ListTopics(&c, &user, false, false, false)
if err != nil {
log.Errorf("Error while getting topics associated to group %s:%s", groupToDelete.Name, err.Error())
ctx.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Errorf("Error while getting topics associated to group")})
return
}
if len(topics) > 0 {
e := fmt.Sprintf("Group %s associated to %d topic, you can't delete it", groupToDelete.Name, count)
log.Errorf(e)
ctx.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Errorf(e)})
return
}
if err = groupDB.Delete(groupToDelete, &user); err != nil {
ctx.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Error while deleting Group: %s", err.Error())})
return
}
ctx.JSON(http.StatusOK, "")
}
// AddDefaultGroup add default group to user
func AddDefaultGroup(user *tat.User) error {
groupname := viper.GetString("default_group")
// no default group
if groupname == "" {
return nil
}
tatGroup, errfinding := group.FindByName(groupname)
if errfinding != nil {
e := fmt.Errorf("Error while fetching default group : %s", errfinding.Error())
return e
}
err := group.AddUser(tatGroup, "Tat", user.Username)
if err != nil {
e := fmt.Errorf("Error while adding user to default group : %s", err.Error())
return e
}
return nil
}