Access Rules

• Aug 01, 2019
• 3 minutes to read

This topic illustrates how to define security permissions for folders and files using a set of folder/file access rules (the FileManagerSettingsPermissions.AccessRules collection). Indexing rules within a collection allow you to control the rules’ priority. A rule with a higher index has a higher priority.

Note

Refer to the Permissions topic for details on how to permit or deny access to individual files and folders or to implement complicated user access logic.

To set up access rules for folders (including their files and sub-folders) and individual files, use the FileManagerFolderAccessRule and FileManagerFileAccessRule elements. The table below lists the access rule properties that are available for files and folders.

Rule Properties	File Access Rule	Folder Access Rule	Description
Path	+	+	A path to which the rule is applied
Role	+	+	A role to which the rule is applied
Browse	+	+	Permission to view a file/folder
Download	+	-	Permission to download a file
Edit	+	+	Permission to edit a file/folder and its content (for folders)
Edit Content	-	+	Permission to edit folder content
Upload	-	+	Permission to upload files to a folder

The following Rights enumeration values determine permissions:

	Value	Description
Allow	Rights.Allow	The action is allowed within the access rule.
Deny	Rights.Deny	The action is denied within the access rule.
Default	Rights.Default	The action has the same permission as the current item (file or folder) parent element. It corresponds to the Rights.Allow permission if this value does not exist.

You can associate access rules with specific security roles and group related permissions by assigning the role’s name to the rule’s Role property. Related access rules should be assigned to matching role names.

Use the FileManagerSettingsPermissions.Role property to apply any created role to the ASPxFileManager. After that, the file manager displays folders and files and provides access permissions to them based on the assigned role.

Note

• The ASPxFileManager does not allow end users to edit a folder that contains files or folders with access denied by Access Rules.
• Define a separate rule (FileManagerFolderAccessRule, FileManagerFileAccessRule) for each operation (Upload, Edit, etc).
• The file or folder’s resulting access rule depends on rules’ order in the FileManagerSettingsPermissions.AccessRules collection.

Online Demo

ASPxFileManager - Access Control

Examples

How to deny editing files except for JPG files:

ASPX

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server">
    <SettingsEditing AllowCreate="true" AllowDelete="true" AllowMove="true" AllowRename="true" />
    <SettingsPermissions>
        <AccessRules>
            <dx:FileManagerFileAccessRule Edit="Deny" Path="*" />
            <dx:FileManagerFileAccessRule Edit="Allow" Path="*.jpg" />
        </AccessRules>
    </SettingsPermissions>
</dx:ASPxFileManager>

How to deny browsing the ‘Admin’ folder:

ASPX

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server">
    <SettingsPermissions>
        <AccessRules>
            <dx:FileManagerFolderAccessRule Browse="Deny" Path="Admin" />
        </AccessRules>
    </SettingsPermissions>
</dx:ASPxFileManager>

How to deny editing the ‘ReadOnly’ folder:

ASPX

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server">
    <SettingsEditing AllowCreate="true" AllowDelete="true" AllowMove="true" AllowRename="true" />
    <SettingsPermissions>
        <AccessRules>
            <dx:FileManagerFolderAccessRule Edit="Deny" Path="ReadOnly" />
        </AccessRules>
    </SettingsPermissions>
</dx:ASPxFileManager>

How to deny uploading any folders except the ‘UploadFolder’ folder:

ASPX

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server">
    <SettingsPermissions>
        <AccessRules>
            <dx:FileManagerFolderAccessRule Upload="Deny" Path="" />
            <dx:FileManagerFolderAccessRule Upload="Allow" Path="UploadFolder" />
        </AccessRules>
    </SettingsPermissions>
</dx:ASPxFileManager>

How to deny non-admin users permission to edit files:

ASPX

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server">
<SettingsPermissions>
<AccessRules>
<dx:FileManagerFolderAccessRule Edit="Deny" Path="" />
<dx:FileManagerFolderAccessRule Edit="Allow" Path="" Role="Admin" />
</AccessRules>
</SettingsPermissions>
</dx:ASPxFileManager>

C#

ASPxFileManager1.SettingsPermissions.Role = User.IsAdmin ? "Admin" : string.Empty;