Function isReadable

controllers/DocumentController.go:97–154

判断用户是否可以阅读文档.

(identify, token string, this *DocumentController)

// 判断用户是否可以阅读文档.
func isReadable(identify, token string, this *DocumentController) *models.BookResult {
	book, err := models.NewBook().FindByFieldFirst("identify", identify)
	if err != nil {
		beego.Error(err)
		this.Abort("404")
	}

	//如果文档是私有的
	if book.PrivatelyOwned == 1 && !this.Member.IsAdministrator() {
		isOk := false
		if this.Member != nil {
			_, err := models.NewRelationship().FindForRoleId(book.BookId, this.Member.MemberId)
			if err == nil {
				isOk = true
			}
		}

		if book.PrivateToken != "" && !isOk {
			//如果有访问的Token，并且该书籍设置了访问Token，并且和用户提供的相匹配，则记录到Session中.
			//如果用户未提供Token且用户登录了，则判断用户是否参与了该书籍.
			//如果用户未登录，则从Session中读取Token.
			if token != "" && strings.EqualFold(token, book.PrivateToken) {
				this.SetSession(identify, token)
			} else if token, ok := this.GetSession(identify).(string); !ok || !strings.EqualFold(token, book.PrivateToken) {
				hasErr := ""
				if this.Ctx.Request.Method == "POST" {
					hasErr = "true"
				}
				this.Redirect(beego.URLFor("DocumentController.Index", ":key", identify)+"?with-password=true&err="+hasErr, 302)
				this.StopRun()
			}
		} else if !isOk {
			this.Abort("404")
		}
	}

	bookResult := book.ToBookResult()
	if this.Member != nil {
		rel, err := models.NewRelationship().FindByBookIdAndMemberId(bookResult.BookId, this.Member.MemberId)
		if err == nil {
			bookResult.MemberId = book.MemberId
			bookResult.RoleId = rel.RoleId
			bookResult.RelationshipId = rel.RelationshipId
		}
	}
	//判断是否需要显示评论框
	switch bookResult.CommentStatus {
	case "closed":
		bookResult.IsDisplayComment = false
	case "open":
		bookResult.IsDisplayComment = true
	case "group_only":
		bookResult.IsDisplayComment = bookResult.RelationshipId > 0
	case "registered_only":
		bookResult.IsDisplayComment = true
	}
	return bookResult
}