我正在使用Web安装项目来安装我的ASP.NET应用程序,该应用程序需要写入主虚拟目录文件夹下的文件夹。如何配置安装项目以授予ASPNET用户对该文件夹的权限?

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解决方案

这样做的方法是创建一个派生自 System.Configuration.Install.Installer 的类。覆盖 Install()方法。以下是更改目录和文件权限的示例,您可能不希望如此宽容,但这取决于您的安全上下文。为了使其工作,安装项目必须将其作为自定义操作运行。添加“主要输出”来自该类所在的任何项目。您还需要将目录传递给其属性中的自定义操作。第一个变量名必须与代码匹配。像这样: / targetdir =" [TARGETDIR] \"

[RunInstaller(true)]
public partial class SetPermissions : Installer
{
    private const string STR_targetdir = "targetdir";
    private const string STR_aspnetUser = "ASPNET";

    public SetPermissions()
    {
        InitializeComponent();
    }

    public override void Install(IDictionary stateSaver)
    {
        base.Install(stateSaver);

        Context.LogMessage(
            Context.Parameters
                .Cast<DictionaryEntry>()
                .Select(entry => String.Format("String = {0} Value = {1}", entry.Key, entry.Value))
                .Aggregate(new StringBuilder("From install\n"), (accumulator, next) => accumulator.AppendLine(next))
                .ToString()
        );

        string targetDir = Context.Parameters[STR_targetdir];
        string dbDir = Path.Combine(targetDir, "db");

        AddFullControlPermissionToDir(dbDir, STR_aspnetUser);
        string rimdbSqliteFilename = Path.Combine(dbDir, "db.sqlite");
        AddFullControlPermissionToFile(rimdbSqliteFilename, STR_aspnetUser);
        string logsDir = Path.Combine(targetDir, "logs");
        AddFullControlPermissionToDir(logsDir, STR_aspnetUser);
    }

    private static void AddFullControlPermissionToDir(string dir, string user)
    {
        DirectorySecurity directorySecurity = Directory.GetAccessControl(dir);
        directorySecurity.AddAccessRule(
            new FileSystemAccessRule(
                user,
                FileSystemRights.FullControl,
                InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
                PropagationFlags.None,
                AccessControlType.Allow));
        Directory.SetAccessControl(dir, directorySecurity);
    }

    private static void AddFullControlPermissionToFile(string filename, string user)
    {
        FileSecurity fileSecurity = File.GetAccessControl(filename);
        fileSecurity.AddAccessRule(
            new FileSystemAccessRule(
                user,
                FileSystemRights.FullControl,
                AccessControlType.Allow));
        File.SetAccessControl(filename, fileSecurity);
    }
}
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