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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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using System.Linq; |
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using System.Security.AccessControl; |
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using System.Security.Principal; |
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using System.Text; |
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using System.Threading.Tasks; |
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namespace IPA.Injector |
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{ |
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internal static class PermissionFix |
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{ |
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public static Task FixPermissions(DirectoryInfo root) |
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{ |
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if (!root.Exists) return Task.CompletedTask; |
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return Task.Run(() => |
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{ |
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try |
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{ |
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var acl = root.GetAccessControl(); |
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var rules = acl.GetAccessRules(true, true, typeof(SecurityIdentifier)); |
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var requestedRights = FileSystemRights.Modify; |
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var requestedInheritance = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit; |
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var requestedPropagation = PropagationFlags.InheritOnly; |
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bool hasRule = false; |
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for (var i = 0; i < rules.Count; i++) |
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{ |
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var rule = rules[i]; |
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if (rule is FileSystemAccessRule fsrule |
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&& fsrule.AccessControlType == AccessControlType.Allow |
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&& fsrule.InheritanceFlags.HasFlag(requestedInheritance) |
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&& fsrule.PropagationFlags == requestedPropagation |
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&& fsrule.FileSystemRights.HasFlag(requestedRights)) |
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{ hasRule = true; break; } |
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} |
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if (!hasRule) |
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{ // this is *sooo* fucking slow on first run
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acl.AddAccessRule( |
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new FileSystemAccessRule( |
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new SecurityIdentifier(WellKnownSidType.WorldSid, null), |
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requestedRights, |
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requestedInheritance, |
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requestedPropagation, |
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AccessControlType.Allow |
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) |
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); |
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root.SetAccessControl(acl); |
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} |
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} |
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catch (Exception e) |
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{ |
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Logging.Logger.log.Warn("Error configuring permissions in the game install dir"); |
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Logging.Logger.log.Warn(e); |
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} |
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}); |
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} |
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} |
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} |