1 files changed, 99 insertions, 0 deletions
diff --git a/lib/ansible/module_utils/powershell/Ansible.ModuleUtils.SID.psm1 b/lib/ansible/module_utils/powershell/Ansible.ModuleUtils.SID.psm1
new file mode 100644
index 0000000..d1f4b62
--- /dev/null
+++ b/lib/ansible/module_utils/powershell/Ansible.ModuleUtils.SID.psm1
@@ -0,0 +1,99 @@
+# Copyright (c) 2017 Ansible Project
+# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
+
+Function Convert-FromSID($sid) {
+    # Converts a SID to a Down-Level Logon name in the form of DOMAIN\UserName
+    # If the SID is for a local user or group then DOMAIN would be the server
+    # name.
+
+    $account_object = New-Object System.Security.Principal.SecurityIdentifier($sid)
+    try {
+        $nt_account = $account_object.Translate([System.Security.Principal.NTAccount])
+    }
+    catch {
+        Fail-Json -obj @{} -message "failed to convert sid '$sid' to a logon name: $($_.Exception.Message)"
+    }
+
+    return $nt_account.Value
+}
+
+Function Convert-ToSID {
+    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingEmptyCatchBlock", "",
+        Justification = "We don't care if converting to a SID fails, just that it failed or not")]
+    param($account_name)
+    # Converts an account name to a SID, it can take in the following forms
+    # SID: Will just return the SID value that was passed in
+    # UPN:
+    #   principal@domain (Domain users only)
+    # Down-Level Login Name
+    #   DOMAIN\principal (Domain)
+    #   SERVERNAME\principal (Local)
+    #   .\principal (Local)
+    #   NT AUTHORITY\SYSTEM (Local Service Accounts)
+    # Login Name
+    #   principal (Local/Local Service Accounts)
+
+    try {
+        $sid = New-Object -TypeName System.Security.Principal.SecurityIdentifier -ArgumentList $account_name
+        return $sid.Value
+    }
+    catch {}
+
+    if ($account_name -like "*\*") {
+        $account_name_split = $account_name -split "\\"
+        if ($account_name_split[0] -eq ".") {
+            $domain = $env:COMPUTERNAME
+        }
+        else {
+            $domain = $account_name_split[0]
+        }
+        $username = $account_name_split[1]
+    }
+    else {
+        $domain = $null
+        $username = $account_name
+    }
+
+    if ($domain) {
+        # searching for a local group with the servername prefixed will fail,
+        # need to check for this situation and only use NTAccount(String)
+        if ($domain -eq $env:COMPUTERNAME) {
+            $adsi = [ADSI]("WinNT://$env:COMPUTERNAME,computer")
+            $group = $adsi.psbase.children | Where-Object { $_.schemaClassName -eq "group" -and $_.Name -eq $username }
+        }
+        else {
+            $group = $null
+        }
+        if ($group) {
+            $account = New-Object System.Security.Principal.NTAccount($username)
+        }
+        else {
+            $account = New-Object System.Security.Principal.NTAccount($domain, $username)
+        }
+    }
+    else {
+        # when in a domain NTAccount(String) will favour domain lookups check
+        # if username is a local user and explicitly search on the localhost for
+        # that account
+        $adsi = [ADSI]("WinNT://$env:COMPUTERNAME,computer")
+        $user = $adsi.psbase.children | Where-Object { $_.schemaClassName -eq "user" -and $_.Name -eq $username }
+        if ($user) {
+            $account = New-Object System.Security.Principal.NTAccount($env:COMPUTERNAME, $username)
+        }
+        else {
+            $account = New-Object System.Security.Principal.NTAccount($username)
+        }
+    }
+
+    try {
+        $account_sid = $account.Translate([System.Security.Principal.SecurityIdentifier])
+    }
+    catch {
+        Fail-Json @{} "account_name $account_name is not a valid account, cannot get SID: $($_.Exception.Message)"
+    }
+
+    return $account_sid.Value
+}
+
+# this line must stay at the bottom to ensure all defined module parts are exported
+Export-ModuleMember -Alias * -Function * -Cmdlet *