///*************************************************************************/
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///*
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///* 文件名 ：SystemAuthentication.cs
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///* 程序说明 : 系统授权全局公共类
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///* 原创作者 ：孙中吕
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///*
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///* Copyright 2006-2021 C/S框架网 www.csframework.com
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///*
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///**************************************************************************/
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using System;
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using System.Data;
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using System.Windows.Forms;
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namespace CSFrameworkV5.Core.SystemSecurity
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{
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/// <summary>
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/// 系统授权全局公共类
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/// </summary>
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public class SystemAuthentication
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{
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/// <summary>
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/// 当前用户的权限数据
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/// </summary>
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private static DataTable _UserAuthorities = null;
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/// <summary>
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/// 当前用户的权限数据
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/// </summary>
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public static DataTable UserAuthorities
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{
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get => _UserAuthorities;
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set => _UserAuthorities = value;
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}
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/// <summary>
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/// 系统登录策略
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/// </summary>
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private static ILoginAuthorization _Current = null;
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/// <summary>
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/// 系统预设的授权模式
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/// </summary>
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public static ILoginAuthorization Current
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{
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get => _Current;
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set => _Current = value;
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}
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/// <summary>
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/// 当前登录的用户
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/// </summary>
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public static Loginer User => Loginer.CurrentUser;
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/// <summary>
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/// 检查当前用户对指定菜单(窗体)有授权使用
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/// </summary>
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/// <param name="menuName">菜单名</param>
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/// <returns></returns>
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public static bool Authorized(string menuName)
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{
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var rows =
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UserAuthorities.Select(
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string.Format("MenuName='{0}'", menuName));
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var authority = rows != null && rows.Length > 0 ? rows[0] : null;
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return authority != null;
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}
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/// <summary>
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/// 设置窗体的权限
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/// </summary>
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/// <param name="form">支持权限控制的窗体</param>
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/// <param name="menuName">菜单名</param>
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public static void SetFormAuthority(IPurviewControllable form,
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string menuName)
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{
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var rows =
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UserAuthorities.Select(
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string.Format("MenuName='{0}'", menuName));
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var authority = rows != null && rows.Length > 0 ? rows[0] : null;
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if (authority != null)
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{
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var actions = 0;
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int.TryParse(authority["Actions"].ToStringEx(), out actions);
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(form as IPurviewControllable).FormAuthorities = actions;
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}
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else
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{
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(form as IPurviewControllable).FormAuthorities = 0;
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}
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}
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/// <summary>
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/// 检查窗体的权限是否拥有参数authorityValue的权限
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/// </summary>
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/// <param name="formAuthorities">窗体的权限</param>
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/// <param name="authorityValue">权限值(功能点的权限值)</param>
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/// <returns></returns>
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public static bool ButtonAuthorized(int formAuthorities,
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int authorityValue)
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{
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if (authorityValue <= 0) return true;
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if (Loginer.CurrentUser.IsAdmin()) return true; //超级用户
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//逻辑运算(与and运算)
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return (authorityValue & formAuthorities) == authorityValue;
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}
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/// <summary>
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/// 设置主菜单的权限。取当前用户拥有的权限，
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/// 枚举所有菜单，没有权限的菜单隐藏。
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/// </summary>
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/// <param name="menuStrip"></param>
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public static void SetMenuAuthority(MenuStrip menuStrip)
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{
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foreach (ToolStripItem item in menuStrip.Items)
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{
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if (item.Tag != null && item.Tag.ToStringEx() == "IsSystemMenu")
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continue;
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if (item is ToolStripMenuItem)
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{
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var menu = item as ToolStripMenuItem;
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if (menu.DropDown.Items.Count > 0)
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SetMenuItemSecurity(menu);
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}
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}
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}
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/// <summary>
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/// 递归设置菜单的权限
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/// </summary>
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/// <param name="parent">父级菜单</param>
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private static void SetMenuItemSecurity(ToolStripMenuItem parent)
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{
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if (!Loginer.CurrentUser.IsAdmin() && UserAuthorities == null)
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throw new Exception("User does't login!");
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//The parent menuitem object will disabled if all child menuitem is disabled.
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var hasShow = false;
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foreach (ToolStripItem sub in parent.DropDown.Items)
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if (sub is ToolStripMenuItem)
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{
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var rows =
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UserAuthorities.Select(string.Format("MenuName='{0}' ",
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sub.Name));
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var menu = sub as ToolStripMenuItem;
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//窗体
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if (menu.DropDown.Items.Count == 0)
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{
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sub.Enabled = Loginer.CurrentUser.IsAdmin() ||
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(rows != null && rows.Length > 0);
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sub.Visible = sub.Enabled; //No right,No Menu
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if (sub.Enabled) hasShow = true;
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}
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if (menu.DropDown.Items.Count > 0)
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SetMenuItemSecurityChild(menu, ref hasShow);
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}
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//Process the parent menuitem
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parent.Enabled = hasShow;
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parent.Visible = hasShow;
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}
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/// <summary>
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/// 递归设置菜单的权限
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/// </summary>
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/// <param name="parent">父级菜单</param>
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/// /// <param name="hideParentIfAllChildInvisible">如果子菜单都被隐藏，是否要显示父级菜单</param>
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private static void SetMenuItemSecurityChild(ToolStripMenuItem parent,
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ref bool hideParentIfAllChildInvisible)
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{
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if (!Loginer.CurrentUser.IsAdmin() && UserAuthorities == null)
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throw new Exception("User does't login!");
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//The parent menuitem object will disabled if all child menuitem is disabled.
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var hasShow = false;
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foreach (ToolStripItem sub in parent.DropDown.Items)
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if (sub is ToolStripMenuItem)
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{
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var rows =
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UserAuthorities.Select(string.Format("MenuName='{0}' ",
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sub.Name));
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var menu = sub as ToolStripMenuItem;
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if (menu.DropDown.Items.Count == 0)
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{
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sub.Enabled = Loginer.CurrentUser.IsAdmin() ||
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(rows != null && rows.Length > 0);
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sub.Visible = sub.Enabled; //No right,No Menu
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if (sub.Enabled) hasShow = true;
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}
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if (menu.DropDown.Items.Count > 0)
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SetMenuItemSecurityChild(menu, ref hasShow);
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}
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//Process the parent menuitem
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parent.Enabled = hasShow;
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parent.Visible = hasShow;
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if (!hideParentIfAllChildInvisible)
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hideParentIfAllChildInvisible = hasShow;
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}
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}
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}
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