Invoke-ResetIdracREDFISH.psm1

<#
_author_ = Texas Roemer <Texas_Roemer@Dell.com>
_version_ = 2.0
 
Copyright (c) 2021, Dell, Inc.
 
This software is licensed to you under the GNU General Public License,
version 2 (GPLv2). There is NO WARRANTY for this software, express or
implied, including the implied warranties of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
along with this software; if not, see
http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
#>


<#
.Synopsis
   iDRAC cmdlet using Redfish API to reset(reboot) iDRAC.
.DESCRIPTION
   iDRAC cmdlet using Redfish API to reset(reboot) iDRAC.
 
   Supported parameters to pass in for cmdlet:
    
   - idrac_ip: Pass in iDRAC IP
   - idrac_username: Pass in iDRAC username
   - idrac_password: Pass in iDRAC password
   - x_auth_token: Pass in iDRAC X-Auth token session to execute cmdlet instead of username / password (recommended)
 
.EXAMPLE
   Invoke-ReplaceCertificateREDFISH -idrac_ip 192.168.0.120 -idrac_username root -idrac_password calvin
   # This example will reset iDRAC
.EXAMPLE
   Invoke-ReplaceCertifiateREDFISH -idrac_ip 192.168.0.120
   # This example will first prompt for iDRAC username/password using Get-Credential, then reset iDRAC
.EXAMPLE
   Invoke-ReplaceCertificateREDFISH -idrac_ip 192.168.0.120 -x_auth_token 7bd9bb9a8727ec366a9cef5bc83b2708
   # This example using iDRAC X-auth token session will reset iDRAC
#>


function Invoke-ResetIdracREDFISH {

# Required, optional parameters needed to be passed in when cmdlet is executed

param(
    [Parameter(Mandatory=$True)]
    [string]$idrac_ip,
    [Parameter(Mandatory=$False)]
    [string]$idrac_username,
    [Parameter(Mandatory=$False)]
    [string]$idrac_password
    )


# Function to ignore SSL certs

function Ignore-SSLCertificates
{
    $Provider = New-Object Microsoft.CSharp.CSharpCodeProvider
    $Compiler = $Provider.CreateCompiler()
    $Params = New-Object System.CodeDom.Compiler.CompilerParameters
    $Params.GenerateExecutable = $false
    $Params.GenerateInMemory = $true
    $Params.IncludeDebugInformation = $false
    $Params.ReferencedAssemblies.Add("System.DLL") > $null
    $TASource=@'
        namespace Local.ToolkitExtensions.Net.CertificatePolicy
        {
            public class TrustAll : System.Net.ICertificatePolicy
            {
                public bool CheckValidationResult(System.Net.ServicePoint sp,System.Security.Cryptography.X509Certificates.X509Certificate cert, System.Net.WebRequest req, int problem)
                {
                    return true;
                }
            }
        }
'@
 
    $TAResults=$Provider.CompileAssemblyFromSource($Params,$TASource)
    $TAAssembly=$TAResults.CompiledAssembly
    $TrustAll = $TAAssembly.CreateInstance("Local.ToolkitExtensions.Net.CertificatePolicy.TrustAll")
    [System.Net.ServicePointManager]::CertificatePolicy = $TrustAll
}

# Function to set up iDRAC credentials

function setup_idrac_creds
{
if ($global:get_powershell_version -ge 7)
{
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::TLS12,[Net.SecurityProtocolType]::TLS13
}
else
{
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::TLS12
}


if ($x_auth_token)
{
$global:x_auth_token = $x_auth_token
}
elseif ($idrac_username -and $idrac_password)
{
$user = $idrac_username
$pass= $idrac_password
$secpasswd = ConvertTo-SecureString $pass -AsPlainText -Force
$global:credential = New-Object System.Management.Automation.PSCredential($user, $secpasswd)
}
else
{
$get_creds = Get-Credential
$global:credential = New-Object System.Management.Automation.PSCredential($get_creds.UserName, $get_creds.Password)
}
}

function get_powershell_version 
{
$get_host_info = Get-Host
$major_number = $get_host_info.Version.Major
$global:get_powershell_version = $major_number
}



function reset_idrac
{
$JsonBody = @{"ResetType"="GracefulRestart"}
$JsonBody = $JsonBody | ConvertTo-Json -Compress
$uri = "https://$idrac_ip/redfish/v1/Managers/iDRAC.Embedded.1/Actions/Manager.Reset"

if ($x_auth_token)
{
try
    {
    if ($global:get_powershell_version -gt 5)
    {
    
    $post_result = Invoke-WebRequest -UseBasicParsing SkipHeaderValidation -SkipCertificateCheck -Uri $uri -Method Post -Body $JsonBody -ContentType 'application/json' -Headers @{"Accept" = "application/json"; "X-Auth-Token" = $x_auth_token} -ErrorVariable RespErr
    }
    else
    {
    Ignore-SSLCertificates
    $post_result = Invoke-WebRequest -UseBasicParsing -Uri $uri -Method Post -Body $JsonBody -ContentType 'application/json' -Headers @{"Accept" = "application/json"; "X-Auth-Token" = $x_auth_token} -ErrorVariable RespErr
    }
    }
    catch
    {
    Write-Host
    $RespErr
    return
    } 
}


else
{
try
    {
    if ($global:get_powershell_version -gt 5)
    {
    
    $post_result = Invoke-WebRequest -UseBasicParsing SkipHeaderValidation -SkipCertificateCheck -Uri $uri -Credential $credential -Method Post -Body $JsonBody -ContentType 'application/json' -Headers @{"Accept"="application/json"} -ErrorVariable RespErr
    }
    else
    {
    Ignore-SSLCertificates
    $post_result = Invoke-WebRequest -UseBasicParsing -Uri $uri -Credential $credential -Method Post -Body $JsonBody -ContentType 'application/json' -Headers @{"Accept"="application/json"} -ErrorVariable RespErr
    }
    }
    catch
    {
    Write-Host
    $RespErr
    return
    } 
}

if ($post_result.StatusCode -eq 204)
{
Write-Host "`n- PASS, POST command passed to reset iDRAC. iDRAC will be back up within a few minutes`n"
}
else
{
[String]::Format("- FAIL, POST command failed to reset iDRAC, statuscode {0} returned. Detail error message: {1}",$post_result.StatusCode, $post_result)
return
}

}
# Run cmdlet

get_powershell_version 
setup_idrac_creds

# Check to validate iDRAC version detected supports this feature

$uri = "https://$idrac_ip/redfish/v1/Managers/iDRAC.Embedded.1"
if ($x_auth_token)
{
 try
    {
    if ($global:get_powershell_version -gt 5)
    {
    $result = Invoke-WebRequest -SkipCertificateCheck -SkipHeaderValidation -Uri $uri -Method Get -UseBasicParsing -ErrorVariable RespErr -Headers @{"Accept" = "application/json"; "X-Auth-Token" = $x_auth_token}
    }
    else
    {
    Ignore-SSLCertificates
    $result = Invoke-WebRequest -Uri $uri -Method Get -UseBasicParsing -ErrorVariable RespErr -Headers @{"Accept"="application/json"; "X-Auth-Token" = $x_auth_token}
    }
    }
    catch
    {
    $RespErr
    return
    }
}

else
{
    try
    {
    if ($global:get_powershell_version -gt 5)
    {
    $result = Invoke-WebRequest -SkipCertificateCheck -SkipHeaderValidation -Uri $uri -Credential $credential -Method Get -UseBasicParsing -ErrorVariable RespErr -Headers @{"Accept"="application/json"}
    }
    else
    {
    Ignore-SSLCertificates
    $result = Invoke-WebRequest -Uri $uri -Credential $credential -Method Get -UseBasicParsing -ErrorVariable RespErr -Headers @{"Accept"="application/json"}
    }
    }
    catch
    {
    $RespErr
    return
    }
}

if ($result.StatusCode -eq 200 -or $result.StatusCode -eq 202)
{
#pass
}
else
{
$status_code = $result.StatusCode
Write-Host "`n- FAIL, status code $status_code returned for GET request to validate iDRAC connection.`n"
return
}

reset_idrac

}