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Revert "Rewrite folder write permission check to hopefully make it more reliable"

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This reverts commit 1f9db3bda6.
This commit is contained in:
chylex 2016-11-15 00:47:15 +01:00
parent 09d39df15a
commit 57b0821e19
1 changed files with 14 additions and 5 deletions

19
Core/Utils/WindowsUtils.cs
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@ -1,5 +1,6 @@
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Security.AccessControl;
using System.Security.Principal;
@ -7,15 +8,23 @@ namespace TweetDck.Core.Utils{
static class WindowsUtils{
public static bool CheckFolderPermission(string path, FileSystemRights right){
try{
AuthorizationRuleCollection collection = Directory.GetAccessControl(path).GetAccessRules(true, true, typeof(NTAccount));
AuthorizationRuleCollection rules = Directory.GetAccessControl(path).GetAccessRules(true, true, typeof(SecurityIdentifier));
WindowsIdentity identity = WindowsIdentity.GetCurrent();
foreach(FileSystemAccessRule rule in collection){
if ((rule.FileSystemRights & right) == right){
return true;
if (identity.Groups == null){
return false;
}
bool accessAllow = false, accessDeny = false;
foreach(FileSystemAccessRule rule in rules.Cast<FileSystemAccessRule>().Where(rule => identity.Groups.Contains(rule.IdentityReference) && (right & rule.FileSystemRights) == right)){
switch(rule.AccessControlType){
case AccessControlType.Allow: accessAllow = true; break;
case AccessControlType.Deny: accessDeny = true; break;
}
}
return false;
return accessAllow && !accessDeny;
}
catch{
return false;