#Requires -Version 4.0

<#
.SYNOPSIS
    Gets MSA 2060 disk health information
.DESCRIPTION
    Gets MSA 2060 disk health information
.PARAMETER MsaHostName
    Specifies the IP address, host name or fqdn of the MSA system
.PARAMETER Credential
    Specifies a PSCredential object that contains credentials for
    authenticating with the server.
.NOTES
    Author: kurator | lagerhaus128.ch
    Revision 0:
        Initial revision
.EXAMPLE
    Import-Module E:\git\iteres-script-collection\powershell\MsaHealth.psm1
    $Credential = New-Object System.Management.Automation.PSCredential -ArgumentList 'manage',('manage' | ConvertTo-SecureString -AsPlainText -Force)
    Get-MsaDiskHealthData -MsaHostName '172.29.105.25' -Credential $Credential
.LINK
    https://www.lagerhaus128.ch/?p=1312
#>

Function Get-MsaDiskHealthData {
    [CmdletBinding()] param(
        [Parameter(Mandatory="true")][String]$MsaHostName,
        [Parameter(Mandatory="true")][PSCredential]$Credential
    )
    Try {
        $hasher = [System.Security.Cryptography.HashAlgorithm]::Create('sha256')
        $hash = $hasher.ComputeHash([System.Text.Encoding]::UTF8.GetBytes(('{0}_{1}' -f $credential.GetNetworkCredential().UserName,$credential.GetNetworkCredential().Password)))

        $MsaCredentialHash = (([System.BitConverter]::ToString($hash)).Replace('-', '')).ToLower()

Add-Type @"
    using System.Net;
    using System.Security.Cryptography.X509Certificates;
    public class TrustAllCertsPolicy : ICertificatePolicy {
        public bool CheckValidationResult(
            ServicePoint srvPoint, X509Certificate certificate,
            WebRequest request, int certificateProblem) {
            return true;
        }
    }
"@
        
        [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
        $SessionKeyResponse = Invoke-WebRequest -Uri ('https://{0}/api/login/{1}' -f $MsaHostName,$MsaCredentialHash)

        if((([XML]$SessionKeyResponse.Content).RESPONSE.OBJECT.PROPERTY| Where-Object {$_.name -eq 'response-type'}).'#text' -eq 'Success') {
            $SessionKey = [String](([XML]$SessionKeyResponse.Content).RESPONSE.OBJECT.PROPERTY| Where-Object {$_.name -eq 'response'}).'#text'
        } Else {
            throw 'Unable to get session key'
        }

        $ShowDisks = Invoke-WebRequest -Uri ('https://{0}/api/show/disks' -f $MsaHostName) -Headers @{'sessionKey' = $SessionKey;'dataType' = 'ipa'} -Method Get
        $ReturnArray = New-Object System.Collections.ArrayList
        ([XML]($ShowDisks.Content)).RESPONSE.OBJECT | Where-Object {$_.name -eq 'drive'} | ForEach-Object {
            $ReturnArray.Add(
                [PSCustomObject]@{
                    'enclosure-id' = ($_.PROPERTY | Where-Object {$_.name -eq 'enclosure-id'}).'#text'
                    'drawer-id' = ($_.PROPERTY | Where-Object {$_.name -eq 'drawer-id'}).'#text'
                    'slot' = ($_.PROPERTY | Where-Object {$_.name -eq 'slot'}).'#text'
                    'temperature-status' = ($_.PROPERTY | Where-Object {$_.name -eq 'temperature-status'}).'#text'
                    'health' = ($_.PROPERTY | Where-Object {$_.name -eq 'health'}).'#text'
                }
            ) | Out-Null
        }
        
        return $ReturnArray

        Remove-Variable ReturnArray
        Remove-Variable ShowDisks
        Remove-Variable SessionKey
        Remove-Variable SessionKeyResponse
        Remove-Variable mSACredentialHash
        Remove-Variable hash
        Remove-Variable hasher
    } Catch {
        Write-Error $_.Exception.Message
    }
}

Export-ModuleMember -Function Get-MsaDiskHealthData

<#
.SYNOPSIS
    Gets MSA 2060 system health information
.DESCRIPTION
    Gets MSA 2060 system health information
.PARAMETER MsaHostName
    Specifies the IP address, host name or fqdn of the MSA system
.PARAMETER Credential
    Specifies a PSCredential object that contains credentials for
    authenticating with the server.
.NOTES
    Author: kurator | lagerhaus128.ch
    Revision 0:
        Initial revision
.EXAMPLE
    Import-Module E:\git\iteres-script-collection\powershell\MsaHealth.psm1
    $Credential = New-Object System.Management.Automation.PSCredential -ArgumentList 'manage',('manage' | ConvertTo-SecureString -AsPlainText -Force)
    Get-MsaSystemHealth -MsaHostName '172.29.105.25' -Credential $Credential
.LINK
    https://www.lagerhaus128.ch/?p=1312
#>

Function Get-MsaSystemHealth {
    [CmdletBinding()] param(
        [Parameter(Mandatory="true")][String]$MsaHostName,
        [Parameter(Mandatory="true")][PSCredential]$Credential
    )
    Try {
        $hasher = [System.Security.Cryptography.HashAlgorithm]::Create('sha256')
        $hash = $hasher.ComputeHash([System.Text.Encoding]::UTF8.GetBytes(('{0}_{1}' -f $credential.GetNetworkCredential().UserName,$credential.GetNetworkCredential().Password)))

        $MsaCredentialHash = (([System.BitConverter]::ToString($hash)).Replace('-', '')).ToLower()

Add-Type @"
    using System.Net;
    using System.Security.Cryptography.X509Certificates;
    public class TrustAllCertsPolicy : ICertificatePolicy {
        public bool CheckValidationResult(
            ServicePoint srvPoint, X509Certificate certificate,
            WebRequest request, int certificateProblem) {
            return true;
        }
    }
"@
        
        [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
        $SessionKeyResponse = Invoke-WebRequest -Uri ('https://{0}/api/login/{1}' -f $MsaHostName,$MsaCredentialHash)

        if((([XML]$SessionKeyResponse.Content).RESPONSE.OBJECT.PROPERTY| Where-Object {$_.name -eq 'response-type'}).'#text' -eq 'Success') {
            $SessionKey = [String](([XML]$SessionKeyResponse.Content).RESPONSE.OBJECT.PROPERTY| Where-Object {$_.name -eq 'response'}).'#text'
        } Else {
            throw 'Unable to get session key'
        }

        $ShowSystem = Invoke-WebRequest -Uri 'https://172.29.105.25/api/show/system' -Headers @{'sessionKey' = $SessionKey;'dataType' = 'ipa'} -Method Get
        
        return ((([XML]($ShowSystem.Content)).RESPONSE.OBJECT | Where-Object {$_.name -eq 'system-information'}).PROPERTY | Where-Object {$_.name -eq 'health'}).'#text'

        Remove-Variable ReturnArray
        Remove-Variable ShowSystem
        Remove-Variable SessionKey
        Remove-Variable SessionKeyResponse
        Remove-Variable mSACredentialHash
        Remove-Variable hash
        Remove-Variable hasher
    } Catch {
        Write-Error $_.Exception.Message
    }
}

Export-ModuleMember -Function Get-MsaSystemHealth