Page security

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Enables the "Requires authentication" property for the page
	// Note: Setting the property to null makes the page inherit the "Requires authentication" value from its parent
	page.IsSecuredNode = true;

	// Saves the updated page to the database
	page.Update();
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Gets the user
	UserInfo user = UserInfoProvider.GetUserInfo("Andy");

	if (user != null)
	{
		// Prepares a value indicating that the 'Modify' permission is allowed
		int allowed = DocumentSecurityHelper.GetNodePermissionFlags(NodePermissionsEnum.ModifyPermissions);
		
		// Prepares a value indicating that no page permissions are denied
		int denied = 0;

		// Sets the page's permission for the user (allows the 'Modify' permission)
		AclItemInfoProvider.SetUserPermissions(page, allowed, denied, user);
	}
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Gets the role
	RoleInfo role = RoleInfoProvider.GetRoleInfo("Admin", SiteContext.CurrentSiteName);

	if (role != null)
	{
		// Prepares a value indicating that the 'Modify' permission is allowed
		int allowed = DocumentSecurityHelper.GetNodePermissionFlags(NodePermissionsEnum.Modify);

		// Prepares a value indicating that no page permissions are denied
		int denied = 0;

		// Sets the page's permission for the role (allows the 'Modify' permission)
		AclItemInfoProvider.SetRolePermissions(page, allowed, denied, role);
	}
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Breaks permission inheritance for the page without copying parent permissions
	bool copyParentPermissions = false;
	AclInfoProvider.BreakInheritance(page, copyParentPermissions);
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Restores permission inheritance for the page
	AclInfoProvider.RestoreInheritance(page);
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Gets the ID of the ACL item that stores the page's permission settings
	int nodeACLID = ValidationHelper.GetInteger(page.GetValue("NodeACLID"), 0);

	// Deletes the page's ACL item
	// Removes the page's permission settings for all users and roles
	AclItemInfoProvider.DeleteAclItems(nodeACLID);
}

// Gets the user
UserInfo user = UserInfoProvider.GetUserInfo("Andy");

if (user != null)
{
	// Checks whether the user has the Read permission for the Content module
	if (UserInfoProvider.IsAuthorizedPerResource("CMS.Content", "Read", SiteContext.CurrentSiteName, user))
	{
		// Perform an action (the user has the read permission for content)
	}
}

// Gets the user
UserInfo user = UserInfoProvider.GetUserInfo("Andy");

if (user != null)
{
	// Checks whether the user has the Read permission for the CMS.MenuItem page type
	if (UserInfoProvider.IsAuthorizedPerClass(SystemDocumentTypes.MenuItem, "Read", SiteContext.CurrentSiteName, user))
	{
		// Perform an action (the user is authorized to read CMS.MenuItem page types)
	}
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the "en-us" culture version of the "/Example" page on the current site
TreeNode page = tree.SelectNodes()
	.Path("/Example")
	.OnCurrentSite()
	.Culture("en-us")
	.FirstObject;

if (page != null)
{
	// Gets the user
	UserInfo user = UserInfoProvider.GetUserInfo("Andy");

	if (user != null)
	{
		// Checks whether the user is authorized to modify the page
		if (TreeSecurityProvider.IsAuthorizedPerNode(page, NodePermissionsEnum.Modify, user) == AuthorizationResultEnum.Allowed)
		{
			// Perform an action (the user is allowed to modify the page)
		}
	}
}

// Prepares a TreeProvider instance
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);

// Gets the user
UserInfo user = UserInfoProvider.GetUserInfo("Andy");

// Sets the action context to the specified user
using (new CMSActionContext(user))
{
	// Gets all news pages under the current site's "/News" section for which the user has Read permissions
	var newsPages = tree.SelectNodes("CMS.News")
							.OnSite(SiteContext.CurrentSiteName)
							.Path("/News", PathTypeEnum.Children)
							.CheckPermissions();
}