Fix secure string issue (#13741) (#13754)

Author: msJinLei

src/MySql/Az.MySql.psd1

@@ -12,7 +12,7 @@
 RootModule = './Az.MySql.psm1'
 
 # Version number of this module.
-ModuleVersion = '0.3.0'
+ModuleVersion = '0.3.1'
 
 # Supported PSEditions
 CompatiblePSEditions = 'Core', 'Desktop'
@@ -130,7 +130,7 @@ PrivateData = @{
         # IconUri = ''
 
         # ReleaseNotes of this module
-        ReleaseNotes = '* Added MySql flexible server cmdlets'
+        ReleaseNotes = '* Fixed secure string issue'
 
         # Prerelease string of this module
         # Prerelease = ''

src/MySql/ChangeLog.md

@@ -19,6 +19,9 @@
 -->
 ## Upcoming Release
 
+## Version 0.3.1
+* Fixed secure string issue
+
 ## Version 0.3.0
 * Added MySql flexible server cmdlets
 

src/MySql/Properties/AssemblyInfo.cs

@@ -24,5 +24,5 @@
 [assembly: ComVisible(false)]
 [assembly: CLSCompliant(false)]
 [assembly: Guid("00815AB0-DED8-4FE1-A7F0-5A98B87EAA3D")]
-[assembly: AssemblyVersion("0.3.0")]
-[assembly: AssemblyFileVersion("0.3.0")]
+[assembly: AssemblyVersion("0.3.1")]
+[assembly: AssemblyFileVersion("0.3.1")]

src/MySql/utils/Unprotect-SecureString.ps1

@@ -0,0 +1,16 @@
+#This script converts securestring to plaintext
+
+param(
+    [Parameter(Mandatory, ValueFromPipeline)]
+    [System.Security.SecureString]
+    ${SecureString}
+)
+
+$ssPtr = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($SecureString)
+try {
+    $plaintext = [System.Runtime.InteropServices.Marshal]::PtrToStringBSTR($ssPtr)
+} finally {
+    [System.Runtime.InteropServices.Marshal]::ZeroFreeBSTR($ssPtr)
+}
+
+return $plaintext