文档库中文件夹的权限管理

需求:
有一个文档库, 然后下面有很多的文件夹, 每个文件夹都有不同的权限系统, 因此当需要维护这些权限的时候,非常麻烦. 所以需要一个webpart来管理这些权限的内容.

分析:
1. 用一个treeview列出文档库中的所有文件夹的内容.
2. 使用一个gridview列出每个文件夹的权限, 点击不同的文件夹时候显示相应的权限.
3. gridview有删除的功能.
4. 可以添加uers到一个group, 把users/groups添加到某些文件夹中.

实现:

1. 创建了一个类显示权限的部分信息.:


class Permission<T>






{


private T _strUsers;


private T _strPermissions;




public T Users






{




get

{ return _strUsers; }




set

{ _strUsers = value; }


}




public T Permissions






{




get

{ return _strPermissions; }




set

{ _strPermissions = value; }


}




public Permission()






{


}




public Permission(T strUsers, T strPermissions)






{


_strUsers = strUsers;


_strPermissions = strPermissions;


}


}

2. 列出相关文件夹的权限:


List<Permission<string>> GetItemsPermissions(string ItemName)






{


List<Permission<string>> subListP = new List<Permission<string>>();


SPListItemCollection oSPListItems = currentList.Folders;


foreach (SPListItem oSPItem in oSPListItems)






{


if (oSPItem.Name == ItemName)






{


SPRoleAssignmentCollection oSPRoles = oSPItem.RoleAssignments;


subListP = GetRoles(oSPRoles);


}


}


return subListP;


}






List<Permission<string>> GetRoles(SPRoleAssignmentCollection oSPRoles)






{


List<Permission<string>> resultList = new List<Permission<string>>();


foreach (SPRoleAssignment oSPRole in oSPRoles)






{


SPRoleDefinitionBindingCollection oSPRoleDefinitions = oSPRole.RoleDefinitionBindings;


string strPermissionLevelName = string.Empty;


foreach (SPRoleDefinition oSPRoleDefinition in oSPRoleDefinitions)






{


strPermissionLevelName += oSPRoleDefinition.Name + ",";


}


strPermissionLevelName = strPermissionLevelName.Substring(0, strPermissionLevelName.Length - 1);


Permission<string> subPermission = new Permission<string>(oSPRole.Member.Name, strPermissionLevelName);


resultList.Add(subPermission);


}


return resultList;


}

3. 删除权限:


void DeleteRole(SPRoleAssignmentCollection oSPRoles, string strGroupName)






{


foreach (SPRoleAssignment oSPRole in oSPRoles)






{


if (oSPRole.Member.Name == strGroupName)






{


SPPrincipal currentPrincipal = oSPRole.Member;


oSPRoles.Remove(currentPrincipal);


break;


}


}


}




// Delete permissions in selected folder.


SPListItemCollection oSPListItems = myList.Folders;


foreach (SPListItem oSPItem in oSPListItems)






{


if (oSPItem.Name == strNodeName)






{


if (!oSPItem.HasUniqueRoleAssignments) oSPItem.BreakRoleInheritance(true);


SPRoleAssignmentCollection oSPRoles = oSPItem.RoleAssignments;


foreach (string strGroup in ListGroups)






{


DeleteRole(oSPRoles, strGroup);


}


}


}

4. 添加user到group:


int AddUserToGroup(string strUserName, string strGroupName, SPWeb myWeb)






{


SPUser oSPUser = GetSPUser(strUserName, myWeb);


int GroupId = 0;


if (oSPUser != null)






{


SPGroupCollection oSPGroups = myWeb.Groups;


foreach (SPGroup oSPGroup in oSPGroups)






{


if (oSPGroup.Name == strGroupName)






{


oSPGroup.AddUser(oSPUser);


GroupId = oSPGroup.ID;


}


}




}


return GroupId;


}

5. 添加users/groups到指定的文件夹中:


// 获得选中的permissions


List<string> ListPermissions = new List<string>();


foreach (ListItem Item in CheckBoxListPermissions.Items)






{


if (Item.Selected)






{


ListPermissions.Add(Item.Text);


}


}


// 获得user/group


if (currentUser != null)






{


oSPRole = new SPRoleAssignment(currentUser);


}


else if (currentGroup != null)






{


oSPRole = new SPRoleAssignment(currentGroup);


}




foreach (string strRoleDefinition in ListPermissions)






{


oSPRole.RoleDefinitionBindings.Add(myWeb.RoleDefinitions[strRoleDefinition]);


}


// 添加到指定的文件夹中


SPListItemCollection oSPListItems = myList.Folders;


foreach (SPListItem oSPItem in oSPListItems)






{


if (!oSPItem.HasUniqueRoleAssignments) oSPItem.BreakRoleInheritance(true);


if (oSPItem.Name == strSelectNode)






{


oSPItem.RoleAssignments.Add(oSPRole);


}


}

效果:
1. 显示权限的页面:



2. 添加users/groups 的页面.