AzureADConnectAPI.ps1

## Directory Sync API functions

# NOTE: Azure AD Sync API gets redirected quite often 2-3 times per request.
# Therefore the functions need to be called recursively and use $Recursion parameter.

# Get synchronization configuration using Provisioning and Azure AD Sync API
# May 6th 2020
function Get-SyncConfiguration
{
<#
    .SYNOPSIS
    Gets tenant's synchronization configuration
 
    .DESCRIPTION
    Gets tenant's synchronization configuration using Provisioning and Azure AD Sync API.
    If the user doesn't have admin rights, only a subset of information is returned.
 
    .Parameter AccessToken
    Access Token
 
    .Example
    Get-AADIntSyncConfiguration
 
    AllowedFeatures : {ObjectWriteback, , PasswordWriteback}
    AnchorAttribute : mS-DS-ConsistencyGuid
    ApplicationVersion : 1651564e-7ce4-4d99-88be-0a65050d8dc3
    ClientVersion : 1.4.38.0
    DirSyncClientMachine : SERVER1
    DirSyncFeatures : 41016
    DisplayName : Company Ltd
    IsDirSyncing : true
    IsPasswordSyncing : false
    IsTrackingChanges : false
    MaxLinksSupportedAcrossBatchInProvision : 15000
    PreventAccidentalDeletion : EnabledForCount
    SynchronizationInterval : PT30M
    TenantId : 57cf9f28-1ad7-40f4-bee8-d3ab9877f0a8
    TotalConnectorSpaceObjects : 1
    TresholdCount : 500
    TresholdPercentage : 0
    UnifiedGroupContainer :
    UserContainer :
    DirSyncAnchorAttribute : mS-DS-ConsistencyGuid
    DirSyncServiceAccount : Sync_SERVER1_xxxxxxxxxxx@company.onmicrosoft.com
    DirectorySynchronizationStatus : Enabled
    InitialDomain : company.onmicrosoft.com
    LastDirSyncTime : 2020-03-03T10:23:09Z
    LastPasswordSyncTime : 2020-03-04T10:23:43Z
    ADSyncBlackListEnabled : false
    ADSyncBlackList : {1.0}
    ADSyncLatestVersion : 3.2
    ADSyncMinimumVersion : 1.0
 
    .Example
    Get-AADIntSyncConfiguration
 
    ApplicationVersion : 1651564e-7ce4-4d99-88be-0a65050d8dc3
    ClientVersion : 1.4.38.0
    DirSyncAnchorAttribute : mS-DS-ConsistencyGuid
    DirSyncClientMachine : SERVER1
    DirSyncServiceAccount : Sync_SERVER1_xxxxxxxxxxx@company.onmicrosoft.com
    DirectorySynchronizationStatus : Enabled
    DisplayName : Company Ltd
    InitialDomain : company.onmicrosoft.com
    IsDirSyncing : true
    LastDirSyncTime : 2020-03-03T10:23:09Z
    LastPasswordSyncTime : 2020-03-04T10:23:43Z
    
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # First get configuration from Provisioning API (no admin rights needed)
        $config = Get-CompanyInformation -AccessToken $AccessToken

        # Show the warning of the pending state
        if($config.DirectorySynchronizationStatus.StartsWith("Pending"))
        {
            Write-Warning "Synchronization status is $($config.DirectorySynchronizationStatus) and it may be stuck to this state for up to 72h!"
        }

        # Return value
        $attributes=[ordered]@{
            ApplicationVersion =              $config.DirSyncApplicationType                 
            ClientVersion =                   $config.DirSyncClientVersion
            DirSyncAnchorAttribute =          $config.DirSyncAnchorAttribute
            DirSyncClientMachine =            $config.DirSyncClientMachineName                 
            DirSyncServiceAccount =           $config.DirSyncServiceAccount
            DirectorySynchronizationStatus =  $config.DirectorySynchronizationStatus
            DisplayName =                     $config.DisplayName
            InitialDomain =                   $config.InitialDomain
            IsDirSyncing =                    $config.DirectorySynchronizationEnabled
            LastDirSyncTime =                 $config.LastDirSyncTime 
            LastPasswordSyncTime =            $config.LastPasswordSyncTime
            PasswordSynchronizationEnabled =  $config.PasswordSynchronizationEnabled
        }
        
        # Try to get synchronization information using Azure AD Sync
        try
        {
            $config2=Get-SyncConfiguration2 -AccessToken $AccessToken

            # Merge the configs
            foreach($key in $attributes.Keys)
            {
                $config2[$key] = $attributes[$key]
            }

            $capabilities=Get-SyncCapabilities -AccessToken $AccessToken

            # Merge the configs
            foreach($key in $capabilities.Keys)
            {
                $config2[$key] = $capabilities[$key]
            }

            return New-Object PSObject -Property $config2
        }
        catch
        {
            return New-Object PSObject -Property $attributes
        }

        

    }
}

# Get synchronization configuration using Sync API
# Oct 11th 2018
function Get-SyncConfiguration2
{
<#
    .SYNOPSIS
    Gets tenant's synchronization configuration
 
    .DESCRIPTION
    Gets tenant's synchronization configuration using Provisioning and Azure AD Sync API.
 
    .Parameter AccessToken
    Access Token
 
    .Example
    Get-AADIntSyncConfiguration
 
    AllowedFeatures : {ObjectWriteback, , PasswordWriteback}
    AnchorAttribute : objectGUID
    ApplicationVersion : 1651564e-7ce4-4d99-88be-0a65050d8dc3
    ClientVersion : 1.1.819.0
    DirSyncClientMachine : AAD-SYNC-01
    DirSyncFeatures : 41016
    DisplayName : Company Ltd
    IsDirSyncing : true
    IsPasswordSyncing : false
    IsTrackingChanges : false
    MaxLinksSupportedAcrossBatchInProvision : 15000
    PreventAccidentalDeletion : EnabledForCount
    SynchronizationInterval : PT30M
    TenantId : 57cf9f28-1ad7-40f4-bee8-d3ab9877f0a8
    TotalConnectorSpaceObjects : 24
    TresholdCount : 500
    TresholdPercentage : 0
    UnifiedGroupContainer :
    UserContainer :
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetCompanyConfiguration xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <includeLicenseInformation>false</includeLicenseInformation>
        </GetCompanyConfiguration>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetCompanyConfiguration"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-SyncConfiguration -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetCompanyConfigurationResponse.GetCompanyConfigurationResult

            $AllowedFeatures = @()
            foreach($feature in $res.AllowedFeatures.'#text')
            {
                $AllowedFeatures += $feature
            }

            $config=[ordered]@{

                AllowedFeatures =            $AllowedFeatures
                AnchorAttribute =            $res.DirSyncConfiguration.AnchorAttribute
                ApplicationVersion =         $res.DirSyncConfiguration.ApplicationVersion
                ClientVersion =              $res.DirSyncConfiguration.ClientVersion
                DirSyncClientMachine =       $res.DirSyncConfiguration.CurrentExport.DirSyncClientMachineName
                DirSyncFeatures =            $res.DirSyncFeatures
                DisplayName =                $res.DisplayName
                IsDirSyncing =               $res.IsDirSyncing
                IsPasswordSyncing =          $res.IsPasswordSyncing
                IsTrackingChanges =          $res.DirSyncConfiguration.IsTrackingChanges
                MaxLinksSupportedAcrossBatchInProvision = $res.MaxLinksSupportedAcrossBatchInProvision2
                PreventAccidentalDeletion =  $res.DirSyncConfiguration.PreventAccidentalDeletion.DeletionPrevention
                SynchronizationInterval =    $res.SynchronizationInterval
                TenantId =                   $res.TenantId
                TotalConnectorSpaceObjects = $res.DirSyncConfiguration.CurrentExport.TotalConnectorSpaceObjects
                TresholdCount =              $res.DirSyncConfiguration.PreventAccidentalDeletion.ThresholdCount
                TresholdPercentage =         $res.DirSyncConfiguration.PreventAccidentalDeletion.ThresholdPercentage
                UnifiedGroupContainer =      $res.WriteBack.UnifiedGroupContainer
                UserContainer =              $res.WriteBack.UserContainer
            }

            return $config
        }
    }
}

# Enables or disables Password Hash Sync (PHS)
function Set-PasswordHashSyncEnabled
{
<#
    .SYNOPSIS
    Enables or disables password hash sync (PHS)
 
    .DESCRIPTION
    Enables or disables password hash sync (PHS) using Azure AD Sync API.
    If dirsync is disabled, it's first enabled using Provisioning API.
 
    Enabling / disabling the PHS usually takes less than 10 seconds. Check the status using Get-AADIntCompanyInformation.
 
    .Parameter AccessToken
    Access Token
 
    .Parameter Enabled
    True or False
 
    .Example
    Set-AADIntPasswordHashSyncEnabled -Enabled $true
 
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [Boolean]$Enabled
    )
    Process
    {
        Write-Warning "Set-AADIntPasswordHashSyncEnabled is deprecated." 
        Write-Warning "Use 'Set-AADIntSyncFeatures -EnableFeatures PasswordHashSync' instead."

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Get the current feature status
        $features = Get-SyncFeatures -AccessToken $AccessToken

        # Check whether the PHS sync is already enabled
        if($Enabled -and $features.PasswordHashSync)
        {
            Write-Host "Password Hash Synchronization already enabled"
        }
        elseif(!$Enabled -and !$features.PasswordHashSync)
        {
            Write-Host "Password Hash Synchronization already disabled"
        }
        else
        {
            # Enable or disable PHS
            if($Enabled)
            {
                $features = Set-SyncFeatures -AccessToken $AccessToken -EnableFeatures PasswordHashSync
                if(!$features.PasswordHashSync)
                {
                    Write-Error "Could not enable Password Hash Sync"
                }

            }
            else
            {
                $features = Set-SyncFeatures -AccessToken $AccessToken -DisableFeatures PasswordHashSync | Out-Null
                if($features.PasswordHashSync)
                {
                    Write-Error "Could not disable Password Hash Sync"
                }
            }
        }
        
    }
}

# Set sync features
# Nov 3rd 2021
function Set-SyncFeatures
{
<#
    .SYNOPSIS
    Enables or disables synchronisation features.
 
    .DESCRIPTION
    Enables or disables synchronisation features using Azure AD Sync API.
    As such, doesn't require "Global Administrator" credentials, "Directory Synchronization Accounts" credentials will do.
     
    .Parameter AccessToken
    Access Token
 
    .Parameter EnableFeatures
    List of features to be enabled
 
    .Parameter DisableFeatures
    List of features to be disabled
 
    .Example
    Get-AADIntAccessTokenForAADGraph -SaveToCache
    PS C:\>Set-AADIntSyncFeature -EnableFeatures PasswordHashSync -DisableFeatures BlockCloudObjectTakeoverThroughHardMatch
 
    BlockCloudObjectTakeoverThroughHardMatch : False
    BlockSoftMatch : False
    DeviceWriteback : False
    DirectoryExtensions : False
    DuplicateProxyAddressResiliency : True
    DuplicateUPNResiliency : True
    EnableSoftMatchOnUpn : True
    EnableUserForcePasswordChangeOnLogon : False
    EnforceCloudPasswordPolicyForPasswordSyncedUsers : False
    PassThroughAuthentication : False
    PasswordHashSync : True
    PasswordWriteBack : False
    SynchronizeUpnForManagedUsers : True
    UnifiedGroupWriteback : False
    UserWriteback : False
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [ValidateSet('PasswordHashSync','PasswordWriteBack','DirectoryExtensions','DuplicateUPNResiliency','EnableSoftMatchOnUpn','DuplicateProxyAddressResiliency','EnforceCloudPasswordPolicyForPasswordSyncedUsers','UnifiedGroupWriteback','UserWriteback','DeviceWriteback','SynchronizeUpnForManagedUsers','EnableUserForcePasswordChangeOnLogon','PassThroughAuthentication','BlockSoftMatch','BlockCloudObjectTakeoverThroughHardMatch')]
        [String[]]$EnableFeatures,
        [Parameter(Mandatory=$False)]
        [ValidateSet('PasswordHashSync','PasswordWriteBack','DirectoryExtensions','DuplicateUPNResiliency','EnableSoftMatchOnUpn','DuplicateProxyAddressResiliency','EnforceCloudPasswordPolicyForPasswordSyncedUsers','UnifiedGroupWriteback','UserWriteback','DeviceWriteback','SynchronizeUpnForManagedUsers','EnableUserForcePasswordChangeOnLogon','PassThroughAuthentication','BlockSoftMatch','BlockCloudObjectTakeoverThroughHardMatch')]
        [String[]]$DisableFeatures
    )
    Begin
    {
        $feature_values = [ordered]@{
            "PasswordHashSync"                                 =       1 
            "PasswordWriteBack"                                =       2 
            "DirectoryExtensions"                              =       4
            "DuplicateUPNResiliency"                           =       8 
            "EnableSoftMatchOnUpn"                             =      16
            "DuplicateProxyAddressResiliency"                  =      32
                                                               # 64
                                                               # 128
                                                               # 256
            "EnforceCloudPasswordPolicyForPasswordSyncedUsers" =     512 
            "UnifiedGroupWriteback"                            =    1024 
            "UserWriteback"                                    =    2048 
            "DeviceWriteback"                                  =    4096 
            "SynchronizeUpnForManagedUsers"                    =    8192 
            "EnableUserForcePasswordChangeOnLogon"             =   16384 
                                                               # 32768
                                                               # 65536
            "PassThroughAuthentication"                        =  131072
                                                               # 262144
            "BlockSoftMatch"                                   =  524288
            "BlockCloudObjectTakeoverThroughHardMatch"         = 1048576
        }
    }
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Get the current features
        $features = (Get-SyncConfiguration2 -AccessToken $AccessToken).DirSyncFeatures

        # Enable features
        foreach($feature in $EnableFeatures)
        {
            $features = $features -bor $feature_values[$feature]
        }

        # Disable features
        foreach($feature in $DisableFeatures)
        {
            $features = $features -band (0x7FFFFFFF -bxor $feature_values[$feature])
        }

        Update-SyncFeatures -AccessToken $AccessToken -Features $features

        Get-SyncFeatures -AccessToken $AccessToken
    }
}

# Get sync features
# Nov 3rd 2021
function Get-SyncFeatures
{
<#
    .SYNOPSIS
    Show the status of synchronisation features.
 
    .DESCRIPTION
    Show the status of synchronisation features using Azure AD Sync API.
    As such, doesn't require "Global Administrator" credentials, "Directory Synchronization Accounts" credentials will do.
     
    .Parameter AccessToken
    Access Token
 
    .Example
    Get-AADIntAccessTokenForAADGraph -SaveToCache
    PS C:\>Get-AADIntSyncFeatures
 
    BlockCloudObjectTakeoverThroughHardMatch : True
    BlockSoftMatch : False
    DeviceWriteback : False
    DirectoryExtensions : False
    DuplicateProxyAddressResiliency : True
    DuplicateUPNResiliency : True
    EnableSoftMatchOnUpn : True
    EnableUserForcePasswordChangeOnLogon : False
    EnforceCloudPasswordPolicyForPasswordSyncedUsers : False
    PassThroughAuthentication : False
    PasswordHashSync : True
    PasswordWriteBack : False
    SynchronizeUpnForManagedUsers : True
    UnifiedGroupWriteback : False
    UserWriteback : False
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken
    )
    Begin
    {
        $feature_values = [ordered]@{
            "BlockCloudObjectTakeoverThroughHardMatch"         = 1048576
            "BlockSoftMatch"                                   =  524288
            "DeviceWriteback"                                  =    4096 
            "DirectoryExtensions"                              =       4
            "DuplicateProxyAddressResiliency"                  =      32
            "DuplicateUPNResiliency"                           =       8 
            "EnableSoftMatchOnUpn"                             =      16
            "EnableUserForcePasswordChangeOnLogon"             =   16384 
            "EnforceCloudPasswordPolicyForPasswordSyncedUsers" =     512 
            "PassThroughAuthentication"                        =  131072
            "PasswordHashSync"                                 =       1 
            "PasswordWriteBack"                                =       2 
            "SynchronizeUpnForManagedUsers"                    =    8192 
            "UnifiedGroupWriteback"                            =    1024 
            "UserWriteback"                                    =    2048 
        }
    }
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Get the current features
        $features = (Get-SyncConfiguration2 -AccessToken $AccessToken).DirSyncFeatures

        $attributes = [ordered]@{}

        # Enable features
        foreach($key in $feature_values.Keys)
        {
            $attributes[$key] = ($features -band $feature_values[$key]) -gt 0
        }

        New-Object psobject -Property $attributes
    }
}


# Update dirsync features
# Nov 3rd 2021
function Update-SyncFeatures
{
    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [int]$Features,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <SetCompanyDirsyncFeatures xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <dirsyncFeatures>$Features</dirsyncFeatures>
        </SetCompanyDirsyncFeatures>
"@

        $Message_id=(New-Guid).ToString()
        $Command="SetCompanyDirsyncFeatures"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Set-SyncFeatures -AccessToken $AccessToken -Features $Features -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetCompanyConfigurationResponse.GetCompanyConfigurationResult

            
        }
    }
}

# Provision Azure AD Sync Object
function Set-AzureADObject
{
<#
    .SYNOPSIS
    Creates or updates Azure AD object using Azure AD Sync API
 
    .DESCRIPTION
    Creates or updates Azure AD object using Azure AD Sync API. Can also set cloud-only user's sourceAnchor (ImmutableId) and onPremisesSAMAccountName. SourceAnchor can only be set once!
 
    .Parameter AccessToken
    Access Token
 
    .Parameter sourceAnchor
    The source anchor for the Azure AD object. Typically Base 64 encoded GUID of on-prem AD object.
 
    .Parameter cloudAnchor
    The cloud anchor for the Azure AD object in the form "<type>_<objectid>". For example "User_a98368aa-f0cb-41b5-a7c6-10f18c6c837d"
 
    .Parameter userPrincipalName
    User Principal Name of the Azure AD object
 
    .Parameter surname
    The last name of the Azure AD object
 
    .Parameter onPremisesSamAccountName
    The on-prem AD samaccountname of the Azure AD object
 
    .Parameter onPremisesDistinguishedName
    The on-prem AD DN of the Azure AD object
 
    .Parameter onPremisesSecurityIdentifier
    The on-prem AD security identifier of the Azure AD object
 
    .Parameter netBiosName
    The on-prem netbiosname of the Azure AD object
 
    .Parameter lastPasswordChangeTimeStamp
    Timestamp when the on-prem AD object's password was changed
 
    .Parameter givenName
    The first name of the Azure AD object
 
    .Parameter dnsDomainName
    The dns domain name of the Azure AD object
 
    .Parameter displayName
    The display name of the Azure AD object
 
    .Parameter countryCode
    The country code of the Azure AD object.
 
    .Parameter commonName
    The common name of the Azure AD object
 
    .Parameter accountEnabled
    Is the Azure AD object enabled. Default is $True.
 
    .Parameter cloudMastered
    Is the Azure AD object editable in Azure AD. Default is $true
 
    .Parameter usageLocation
    Two letter country code for usage location of Azure AD object.
 
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [String]$CloudAnchor,
        [Parameter(Mandatory=$False)]
        [String]$SourceAnchor,
        [Parameter(Mandatory=$False)]
        [String]$userPrincipalName,
        [Parameter(Mandatory=$False)]
        [String]$surname,
        [Parameter(Mandatory=$False)]
        [String]$onPremisesSamAccountName,
        [Parameter(Mandatory=$False)]
        [String]$onPremisesDistinguishedName,
        [Parameter(Mandatory=$False)]
        [String]$onPremiseSecurityIdentifier,
        [Parameter(Mandatory=$False)]
        [String]$netBiosName,
        [Parameter(Mandatory=$False)]
        [String]$lastPasswordChangeTimestamp,
        [Parameter(Mandatory=$False)]
        [String]$givenName,
        [Parameter(Mandatory=$False)]
        [String]$dnsDomainName,
        [Parameter(Mandatory=$False)]
        [String]$displayName,
        [Parameter(Mandatory=$False)]
        $countryCode,
        [Parameter(Mandatory=$False)]
        [String]$commonName,
        [Parameter(Mandatory=$False)]
        $accountEnabled,
        [Parameter(Mandatory=$False)]
        $cloudMastered,
        [Parameter(Mandatory=$False)]
        [ValidateSet('AF','AX','AL','DZ','AS','AD','AO','AI','AQ','AG','AR','AM','AW','AU','AT','AZ','BS','BH','BD','BB','BY','BE','BZ','BJ','BM','BT','BO','BQ','BA','BW','BV','BR','IO','BN','BG','BF','BI','KH','CM','CA','CV','KY','CF','TD','CL','CN','CX','CC','CO','KM','CG','CD','CK','CR','CI','HR','CU','CW','CY','CZ','DK','DJ','DM','DO','EC','EG','SV','GQ','ER','EE','ET','FK','FO','FJ','FI','FR','GF','PF','TF','GA','GM','GE','DE','GH','GI','GR','GL','GD','GP','GU','GT','GG','GN','GW','GY','HT','HM','VA','HN','HK','HU','IS','IN','ID','IQ','IE','IR','IM','IL','IT','JM','JP','JE','JO','KZ','KE','KI','KP','KR','KW','KG','LA','LV','LB','LS','LR','LY','LI','LT','LU','MO','MK','MG','MW','MY','MV','ML','MT','MH','MQ','MR','MU','YT','MX','FM','MD','MC','MN','ME','MS','MA','MZ','MM','NA','NR','NP','NL','NC','NZ','NI','NE','NG','NU','NF','MP','NO','OM','PK','PW','PS','PA','PG','PY','PE','PH','PN','PL','PT','PR','QA','RE','RO','RU','RW','BL','SH','KN','LC','MF','PM','VC','WS','SM','ST','SA','SN','RS','SC','SL','SG','SX','SK','SI','SB','SO','ZA','GS','SS','ES','LK','SD','SR','SJ','SZ','SE','CH','SY','TW','TJ','TZ','TH','TL','TG','TK','TO','TT','TN','TR','TM','TC','TV','UG','UA','AE','GB','US','UM','UY','UZ','VU','VE','VN','VG','VI','WF','EH','YE','ZM','ZW')][String]$usageLocation,
        [Parameter(Mandatory=$False)]
        [ValidateSet('User','Group','Contact','Device')]
        [String]$ObjectType="User",
        [Parameter(Mandatory=$False)]
        [String[]]$proxyAddresses,
        [Parameter(Mandatory=$False)]
        [String]$thumbnailPhoto,
        [Parameter(Mandatory=$False)]
        [String[]]$groupMembers,

        [Parameter(Mandatory=$False)]
        [String]$deviceId,
        [Parameter(Mandatory=$False)]
        [String]$deviceOSType,
        [Parameter(Mandatory=$False)]
        [String]$deviceTrustType,
        [Parameter(Mandatory=$False)]
        [String[]]$userCertificate,
        [Parameter(Mandatory=$False)]
        [ValidateSet('Set','Add')]
        [String]$Operation="Set",
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <ProvisionAzureADSyncObjects xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <syncRequest xmlns:b="http://schemas.microsoft.com/online/aws/change/2014/06" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
                <b:SyncObjects>
                    <b:AzureADSyncObject>
                        <b:PropertyValues xmlns:c="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
                             
                            $(Add-PropertyValue "SourceAnchor" $sourceAnchor)
                            $(Add-PropertyValue "accountEnabled" $accountEnabled -Type bool)
                            $(Add-PropertyValue "commonName" $commonName)
                            $(Add-PropertyValue "countryCode" $countryCode -Type long)
                            $(Add-PropertyValue "displayName" $displayName)
                            $(Add-PropertyValue "dnsDomainName" $dnsDomainName)
                            $(Add-PropertyValue "givenName" $givenName)
                            $(Add-PropertyValue "lastPasswordChangeTimestamp" $lastPasswordChangeTimestamp)
                            $(Add-PropertyValue "netBiosName" $netBiosName)
                            $(Add-PropertyValue "onPremiseSecurityIdentifier" $onPremiseSecurityIdentifier -Type base64)
                            $(Add-PropertyValue "onPremisesDistinguishedName" $onPremisesDistinguishedName)
                            $(Add-PropertyValue "onPremisesSamAccountName" $onPremisesSamAccountName)
                             
                            $(Add-PropertyValue "surname" $surname)
                            $(Add-PropertyValue "userPrincipalName" $userPrincipalName)
                            $(Add-PropertyValue "cloudMastered" $cloudMastered -Type bool)
                            $(Add-PropertyValue "usageLocation" $usageLocation)
                            $(Add-PropertyValue "CloudAnchor" $CloudAnchor)
                            $(Add-PropertyValue "ThumbnailPhoto" $thumbnailPhoto)
                            $(Add-PropertyValue "proxyAddresses" $proxyAddresses -Type ArrayOfstring)
                            $(Add-PropertyValue "member" $groupMembers -Type ArrayOfstring)
 
                            $(Add-PropertyValue "deviceId" $deviceId -Type base64)
                            $(Add-PropertyValue "deviceTrustType" $deviceTrustType)
                            $(Add-PropertyValue "deviceOSType" $deviceOSType)
                            $(Add-PropertyValue "userCertificate" $userCertificate -Type ArrayOfbase64)
 
                            $(if($ObjectType -eq "User"){Add-PropertyValue "userType" $userType})
                        </b:PropertyValues>
                        <b:SyncObjectType>$ObjectType</b:SyncObjectType>
                        <b:SyncOperation>$Operation</b:SyncOperation>
                    </b:AzureADSyncObject>
                </b:SyncObjects>
            </syncRequest>
        </ProvisionAzureADSyncObjects>
"@


        $Message_id=(New-Guid).ToString()
        $Command="ProvisionAzureADSyncObjects"

        $serverName=$aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName
        
        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        
        if(IsRedirectResponse($xml_doc))
        {
            return Set-AzureADObject -AccessToken $AccessToken -Recursion ($Recursion+1) -sourceAnchor $sourceAnchor -ObjectType $ObjectType -userPrincipalName $userPrincipalName -surname $surname -onPremisesSamAccountName $onPremisesSamAccountName -onPremisesDistinguishedName $onPremisesDistinguishedName -onPremiseSecurityIdentifier $onPremisesDistinguishedName -netBiosName $netBiosName -lastPasswordChangeTimestamp $lastPasswordChangeTimestamp -givenName $givenName -dnsDomainName $dnsDomainName -displayName $displayName -countryCode $countryCode -commonName $commonName -accountEnabled $accountEnabled -cloudMastered $cloudMastered -usageLocation $usageLocation -CloudAnchor $CloudAnchor
        }
        
        # Check whether this is an error message
        if($xml_doc.Envelope.Body.Fault)
        {
            Throw $xml_doc.Envelope.Body.Fault.Reason.Text.'#text'
        }

        # Return
        $xml_doc.Envelope.Body.ProvisionAzureADSyncObjectsResponse.ProvisionAzureADSyncObjectsResult.SyncObjectResults.AzureADSyncObjectResult
    }
}


# Removes the given Azure AD Object
function Remove-AzureADObject
{
<#
    .SYNOPSIS
    Removes Azure AD object using Azure AD Sync API
 
    .DESCRIPTION
    Removes Azure AD object using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
 
    .Parameter sourceAnchor
    The source anchor for the Azure AD object. Typically Base 64 encoded GUID of on-prem AD object.
 
    .Parameter cloudAnchor
    The cloud anchor for the Azure AD object in the form "<type>_<objectid>". For example "User_a98368aa-f0cb-41b5-a7c6-10f18c6c837d"
 
 
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(ParameterSetName='sourceAnchor', Mandatory=$True)]
        [String]$sourceAnchor,
        [Parameter(ParameterSetName='cloudAnchor', Mandatory=$True)]
        [String]$cloudAnchor,
        [Parameter(Mandatory=$False)]
        [ValidateSet('User','Group','Contact','Device')]
        [String]$ObjectType="User",
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <ProvisionAzureADSyncObjects xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <syncRequest xmlns:b="http://schemas.microsoft.com/online/aws/change/2014/06" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
                <b:SyncObjects>
                    <b:AzureADSyncObject>
                        <b:PropertyValues xmlns:c="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
                            $(Add-PropertyValue "SourceAnchor" $sourceAnchor)
                            $(Add-PropertyValue "CloudAnchor" $cloudAnchor)
                        </b:PropertyValues>
                        <b:SyncObjectType>$ObjectType</b:SyncObjectType>
                        <b:SyncOperation>Delete</b:SyncOperation>
                    </b:AzureADSyncObject>
                </b:SyncObjects>
            </syncRequest>
        </ProvisionAzureADSyncObjects>
"@


        $Message_id=(New-Guid).ToString()
        $Command="ProvisionAzureADSyncObjects"

        $serverName=$aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName
        
        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        
        if(IsRedirectResponse($xml_doc))
        {
            return Remove-AzureADObject -AccessToken $AccessToken -Recursion ($Recursion+1) -sourceAnchor $sourceAnchor -ObjectType $ObjectType
        }
        
        # Return
        $xml_doc.Envelope.Body.ProvisionAzureADSyncObjectsResponse.ProvisionAzureADSyncObjectsResult.SyncObjectResults.AzureADSyncObjectResult
    }
}


# Finalize Azure AD Sync
function Finalize-Export
{
    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Count=1,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        

        $body=@"
        <FinalizeExport xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <totalExported>$count</totalExported>
            <successfulExportCount>$count</successfulExportCount>
        </FinalizeExport>
"@

        $Message_id=(New-Guid).ToString()
        $Command="FinalizeExport"

        $serverName=$aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Parse-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)
        
        if(IsRedirectResponse($xml_doc))
        {
            return Finalize-Export -Count $Count -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            return $xml_doc
        }
    }
}

# Get sync objects from Azure AD
function Get-SyncObjects
{
<#
    .SYNOPSIS
    Gets tenant's synchronized objects
 
    .DESCRIPTION
    Gets tenant's synchronized objects using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
 
    .Parameter Version
    Version number of AD Sync, defaults to 2. Version 2 returns only non-empty attributes and is thus much more efficient.
 
    .Example
    Get-AADIntSyncObjects -AccessToken $at -Version 1
 
    AccountEnabled : true
    Alias :
    City :
    CloudAnchor : User_64c6616b-f961-4882-a03e-9209d01711aa
    CloudLegacyExchangeDN : /o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=7e07ff8b-5d1c-4319-b608-c371914fbd99-Megan Bowen
    CloudMSExchArchiveStatus :
    CloudMSExchBlockedSendersHash :
    CloudMSExchRecipientDisplayType : 1073741824
    CloudMSExchSafeRecipientsHash :
    CloudMSExchSafeSendersHash :
    CloudMSExchTeamMailboxExpiration :
    CloudMSExchTeamMailboxSharePointUrl :
    CloudMSExchUCVoiceMailSettings :
    CloudMSExchUserHoldPolicies :
    CloudMastered : false
    CommonName : Megan Bowen
    Company :
    Country :
    CountryCode : 0
    CountryLetterCode :
    Department :
    Description :
    DisplayName : Megan Bowen
    DnsDomainName : company.com
    ...
 
    .Example
    Get-AADIntSyncObjects -AccessToken $at
 
    AccountEnabled : true
    CloudAnchor : User_64c6616b-f961-4882-a03e-9209d01711aa
    CloudLegacyExchangeDN : /o=ExchangeLabs/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=7e07ff8b-5d1c-4319-b608-c371914fbd99-Megan Bowen
    CloudMSExchRecipientDisplayType : 1073741824
    CloudMastered : false
    CommonName : Megan Bowen
    CountryCode : 0
    DisplayName : Megan Bowen
    DnsDomainName : company.com
    GivenName : Megan
    LastPasswordChangeTimestamp : 20190801164342.0Z
    NetBiosName : COMPANY
    OnPremiseSecurityIdentifier :
    OnPremisesDistinguishedName : CN=Megan Bowen,OU=Domain Users,DC=company,DC=com
    OnPremisesSamAccountName : MeganB
    SourceAnchor :
    Surname : Bowen
    SyncObjectType : User
    SyncOperation : Set
    UsageLocation : US
    UserPrincipalName : MeganB@company.com
    UserType : Member
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1,
        [Parameter(Mandatory=$False)]
        [ValidateSet(1,2)]
        [Int]$Version=2,
        [Parameter(Mandatory=$False)]
        [bool]$FullSync=$true
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Check the version
        if($Version -eq 2)
        {
            $txtVer = $Version.ToString()
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <ReadBackAzureADSyncObjects$txtVer xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <includeLicenseInformation>true</includeLicenseInformation>
            <inputCookie i:nil="true" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"></inputCookie>
            <isFullSync>$($FullSync.toString().toLower())</isFullSync>
        </ReadBackAzureADSyncObjects$txtVer>
"@

        $Message_id=(New-Guid).ToString()
        $Command="ReadBackAzureADSyncObjects$txtVer"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-SyncObjects -AccessToken $AccessToken -Recursion ($Recursion+1) -Version $Version
        }
        else
        {
            # Create a return object
            if($Version -eq 2)
            {
                $res=$xml_doc.Envelope.Body.ReadBackAzureADSyncObjects2Response.ReadBackAzureADSyncObjects2Result
            }
            else
            {
                $res=$xml_doc.Envelope.Body.ReadBackAzureADSyncObjectsResponse.ReadBackAzureADSyncObjectsResult
            }

            # Loop through objects
            foreach($obj in $res.ResultObjects.AzureADSyncObject)
            {
                $details=@{}
                $details.SyncObjectType=$obj.SyncObjectType
                $details.SyncOperation=$obj.SyncOperation

                # Loop through all key=value pairs
                foreach($kv in $obj.PropertyValues.KeyValueOfstringanyType)
                {
                    $details[$kv.Key]=$kv.value.'#text'
                }

                # Return
                New-Object -TypeName PSObject -Property $details
            }

        }
    }
}


# Set's user's password
function Set-UserPassword
{
<#
    .SYNOPSIS
    Sets the password of the given user
 
    .DESCRIPTION
    Sets the password of the given user using Azure AD Sync API. If the Result is 0, the change was successful.
    Requires that Directory Synchronization is enabled for the tenant!
 
    .Parameter AccessToken
    Access Token
 
    .Parameter SourceAnchor
    User's source anchor (ImmutableId)
 
    .Parameter CloudAnchor
    User's cloud anchor "<Type>_<objectid>". For example "User_60f87269-f258-4473-8cca-267b50110e7a"
 
    .Parameter Password
    User's new password
 
    .Parameter ChangeDate
    Time of the password change. Can be now or in the past.
 
    .Parameter Iterations
    The number of iterations of pbkdf2. Defaults to 1000.
 
    .Example
    Set-AADIntUserPassword -SourceAnchor "Vvl6blILG0/Cr/8TWOe9pg==" -Password "MyPassword" -ChangeDate ((Get-Date).AddYears(-1))
 
    CloudAnchor Result SourceAnchor
    ----------- ------ ------------
    CloudAnchor 0 Vvl6blILG0/Cr/8TWOe9pg==
 
    .Example
    Set-AADIntUserPassword -CloudAnchor "User_60f87269-f258-4473-8cca-267b50110e7a" -Password "MyPassword" -ChangeDate ((Get-Date).AddYears(-1))
 
    CloudAnchor Result SourceAnchor
    ----------- ------ ------------
    User_60f87269-f258-4473-8cca-267b50110e7a 0 SourceAnchor
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(ParameterSetName='Cloud', Mandatory=$True)]
        [String]$CloudAnchor,
        [Parameter(ParameterSetName='Source', Mandatory=$True)]
        [String]$SourceAnchor,
        [Parameter(ParameterSetName='UPN', Mandatory=$True)]
        [String]$UserPrincipalName,
        [Parameter(Mandatory=$False)]
        [String]$Password,
        [Parameter(Mandatory=$False)]
        [String]$Hash,
        [Parameter(Mandatory=$False)]
        [DateTime]$ChangeDate=(Get-Date),
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1,
        [parameter(Mandatory=$false)]
        [int]$Iterations=1000
    )
    Process
    {
        # Password or Hash must be given
        if([string]::IsNullOrEmpty($Password) -and [string]::IsNullOrEmpty($Hash))
        {
            throw "Password or Hash must be given!"
        }
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Warn once about iterations over 1000
        if($Recursion -eq 1 -and $Iterations -gt 1000)
        {
            Write-Warning "Iterations more than 1000, login may not work correctly!"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # If the UserPrincipalName is given, get the user's cloudAnchor
        if($UserPrincipalName)
        {
            $user = Get-User -AccessToken $AccessToken -UserPrincipalName $UserPrincipalName
            $CloudAnchor="User_$($user.ObjectId)"
        }

        # Create AAD hash
        $CredentialData = Create-AADHash -Password $Password -Hash $Hash -Iterations $Iterations

        # Create the body block
        $body=@"
        <ProvisionCredentials xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <request xmlns:b="http://schemas.datacontract.org/2004/07/Microsoft.Online.Coexistence.Schema" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
                <b:RequestItems>
                    <b:SyncCredentialsChangeItem>
                        <b:ChangeDate>$($ChangeDate.ToUniversalTime().ToString("o"))</b:ChangeDate>
                        $(if($CloudAnchor){"<b:CloudAnchor>$CloudAnchor</b:CloudAnchor>"}else{"<b:CloudAnchor i:nil=""true""/>"})
                        <b:CredentialData>$CredentialData</b:CredentialData>
                        <b:ForcePasswordChangeOnLogon>false</b:ForcePasswordChangeOnLogon>
                        $(if($SourceAnchor){"<b:SourceAnchor>$SourceAnchor</b:SourceAnchor>"}else{"<b:SourceAnchor i:nil=""true""/>"})
                        <b:WindowsLegacyCredentials i:nil="true"/>
                        <b:WindowsSupplementalCredentials i:nil="true"/>
                    </b:SyncCredentialsChangeItem>
                </b:RequestItems>
            </request>
        </ProvisionCredentials>
"@

        $Message_id=(New-Guid).ToString()
        $Command="ProvisionCredentials"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Set-UserPassword -AccessToken $AccessToken -Recursion ($Recursion+1) -SourceAnchor $SourceAnchor -Password $Password -ChangeDate $ChangeDate -Iterations $Iterations
        }
        else
        {
            # Return

            return $xml_doc.Envelope.Body.ProvisionCredentialsResponse.ProvisionCredentialsResult.Results.SyncCredentialsChangeResult

            

        }
    }
}

# Creates or reset service account
function Reset-ServiceAccount
{
<#
    .SYNOPSIS
    Create or reset Azure AD Connect sync service account.
 
    .DESCRIPTION
    Creates a new user account for Azure AD Connect sync service OR resets existing user's password.
    The created user will have DirecotrySynchronizationAccount role.
 
    .Parameter AccessToken
    Access Token
 
    .Parameter ServiceAccount
    Name of the service account to be created.
 
    .Example
    Reset-AADIntServiceAccount -AccessToken $at -ServiceAccount myserviceaccount
 
    Password UserName
    -------- --------
    s@S)uv_?*!IBsu%- myserviceaccount@company.onmicrosoft.com
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [String]$ServiceAccount,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

       # Create the body block
        $body=@"
        <GetServiceAccount xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
            <identifier>$ServiceAccount</identifier>
        </GetServiceAccount>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetServiceAccount"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-ServiceAccount -AccessToken $AccessToken -Recursion ($Recursion+1) -ServiceAccount $ServiceAccount
        }
        else
        {
            # Return

            $retval = $xml_doc.Envelope.Body.GetServiceAccountResponse.GetServiceAccountResult
            if($retval -eq $null)
            {
                return $xml_doc.Envelope.Body.Fault.Reason.Text.'#text'
            }
            else
            {
                # Create and return response object
                $Attributes = @{
                    UserName = $retval.UserName
                    Password = $retval.Password
                }
                return New-Object -TypeName psobject -Property $Attributes
            }
        }
    }
}

# Enable or disable pass-through authentication
function Set-PassThroughAuthenticationEnabled
{
<#
    .SYNOPSIS
    Enables or disables passthrough authentication (PTA).
 
    .DESCRIPTION
    Enables or disables passthrough authentication (PTA) using msapproxy.net api.
 
    .Parameter AccessToken
    Access Token.
 
    .Parameter Enabled
    Whether to enable or disable PTA.
 
    .Example
    PS C:\>$cred=Get-Credential
    PS C:\>$pt=Get-AADIntAccessTokenForPTA -Credentials $cred
    PS C:\>Set-AADIntPassThroughAuthentication -AccessToken $pt -Enable $true
 
    IsSuccesful Enable Exists
    ----------- ------ ------
    true true true
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [bool]$Enable
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "cb1056e2-e479-49de-ae31-7812af012ed8" -Resource "https://proxy.cloudwebappproxy.net/registerapp"

        # Create the body block
        $body=@"
        <PassthroughAuthenticationEnablementRequest xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.RegistrationCommons.Registration" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <AuthenticationToken xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.Security.AadSecurity">$AccessToken</AuthenticationToken>
            <Enable>$($Enable.ToString().ToLower())</Enable>
            <SkipExoEnablement>false</SkipExoEnablement>
            <UserAgent>AADConnect/1.1.882.0 PassthroughAuthenticationConnector/1.5.405.0</UserAgent>
        </PassthroughAuthenticationEnablementRequest>
"@

        $tenant_id = Get-TenantId -AccessToken $AccessToken
        
        # Call the api
        $response=Invoke-RestMethod -UseBasicParsing -Uri "https://$tenant_id.registration.msappproxy.net/register/EnablePassthroughAuthentication" -Method Post -ContentType "application/xml; charset=utf-8" -Body $body

        if($response.PassthroughAuthenticationRequestResult.ErrorMessage)
        {
            Write-Error $response.PassthroughAuthenticationRequestResult.ErrorMessage
        }

        # Create and return the response object
        $attributes=@{
            IsSuccesful = $response.PassthroughAuthenticationRequestResult.IsSuccessful
            Enable = $response.PassthroughAuthenticationRequestResult.Enable
            Exists = $response.PassthroughAuthenticationRequestResult.Exists
        }
        return New-Object -TypeName psobject -Property $Attributes
    }
}

# Aug 21st 2019
function Get-DesktopSSO
{
<#
    .SYNOPSIS
    Returns the status of Seamless SSO status
 
    .DESCRIPTION
    Returns the status of Seamless SSO status
 
    .Parameter AccessToken
    Access Token.
 
    .Example
    PS C:\>$cred=Get-Credential
    PS C:\>$pt=Get-AADIntAccessTokenForPTA -Credentials $cred
    PS C:\>Get-AADIntSeamlessSSO -AccessToken $pt
 
    Domains : company.com
    Enable : True
    ErrorMessage :
    Exists : True
    IsSuccessful : True
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "cb1056e2-e479-49de-ae31-7812af012ed8" -Resource "https://proxy.cloudwebappproxy.net/registerapp"

        $tenantId = (Read-Accesstoken $AccessToken).tid
        $url="https://$tenantId.registration.msappproxy.net/register/GetDesktopSsoStatus"

        $body=@"
        <TokenAuthenticationRequest xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.Security.AadSecurity" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <AuthenticationToken>$AccessToken</AuthenticationToken>
        </TokenAuthenticationRequest>
"@

        $results=Invoke-RestMethod -UseBasicParsing -Uri $url -Body $body -Method Post -ContentType "application/xml; charset=utf-8"

        $attributes=@{
            "ErrorMessage" = $results.DesktopSsoStatusResult.ErrorMessage
            "IsSuccessful" = $($results.DesktopSsoStatusResult.IsSuccessful -eq "true")
            "Enabled" = $($results.DesktopSsoStatusResult.Enable -eq "true")
            "Exists" = $($results.DesktopSsoStatusResult.Exists -eq "true")
            "Domains" = $results.DesktopSsoStatusResult.domains.string
        }

        return New-Object -TypeName PSObject -Property $attributes
    }
}

# Aug 21st 2019
function Set-DesktopSSO
{
<#
    .SYNOPSIS
    Enables or disables Seamless SSO for the given domain
 
    .DESCRIPTION
    Enables or disables Seamless SSO for the given domain
 
    .Parameter AccessToken
    Access Token.
 
    .Example
    PS C:\>$cred=Get-Credential
    PS C:\>$pt=Get-AADIntAccessTokenForPTA -Credentials $cred
    PS C:\>Set-AADIntDesktopSSO -AccessToken $pt -DomainName "company.net" -Password "MySecretPassWord"
 
    IsSuccessful ErrorMessage
    ------------ ------------
            True
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [String]$ComputerName="AZUREADSSOACC",
        [Parameter(Mandatory=$True)]
        [String]$DomainName,
        [Parameter(Mandatory=$False)]
        [Bool]$Enable=$True,
        [Parameter(Mandatory=$True)]
        [String]$Password
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "cb1056e2-e479-49de-ae31-7812af012ed8" -Resource "https://proxy.cloudwebappproxy.net/registerapp"

        $tenantId = (Read-Accesstoken $AccessToken).tid
        $url="https://$tenantId.registration.msappproxy.net/register/EnableDesktopSso"

        $body=@"
        <DesktopSsoRequest xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.RegistrationCommons.Registration" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <AuthenticationToken xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.Security.AadSecurity">$AccessToken</AuthenticationToken>
            <ComputerName>$ComputerName</ComputerName>
            <DomainName>$DomainName</DomainName>
            <Enable>$($Enable.ToString().ToLower())</Enable>
            <Secret>$([System.Security.SecurityElement]::Escape($Password))</Secret>
        </DesktopSsoRequest>
"@

        $results=Invoke-RestMethod -UseBasicParsing -Uri $url -Body $body -Method Post -ContentType "application/xml; charset=utf-8"


        $attributes=@{
            "ErrorMessage" = $results.DesktopSsoEnablementResult.ErrorMessage
            "IsSuccessful" = $($results.DesktopSsoEnablementResult.IsSuccessful -eq "true")
        }

        $setPwd=Read-Host -Prompt "Would you like to set the password of computer account $ComputerName to `"$Password`" also in your ON-PREM ACTIVE DIRECTORY (yes/no)?"
        if($setPwd -eq "yes")
        {
            
            try
            {
                $computer = Get-ADComputer $ComputerName
                Set-ADAccountPassword -Identity $computer.DistinguishedName -NewPassword (ConvertTo-SecureString -AsPlainText $Password -Force)

                # TGT ticket can be alive for a week..
                Write-Warning "Password set for $ComputerName. The Kerberos Key Distribution Center should be restarted for the change to take effect."
            }
            catch
            {
                Write-Error "Could not set password for $ComputerName! Set it manually using Set-ADAccountPassword -Identity $($computer.DistinguishedName) -NewPassword (ConvertTo-SecureString -AsPlainText `"$Password`" -Force)"
            }
        }
        else
        {
            # If not set, users won't be able to login..
            Write-Warning "Password NOT set for $ComputerName! Set it manually to `"$Password`" and restart Kerberos Key Distribution Center for the change to take effect."
        }

        return New-Object -TypeName PSObject -Property $attributes
    }
}

# Aug 21st 2019
function Set-DesktopSSOEnabled
{
<#
    .SYNOPSIS
    Enables or disables Seamless SSO
 
    .DESCRIPTION
    Enables or disables Seamless SSO
 
    .Parameter AccessToken
    Access Token.
 
    .Example
    PS C:\>Get-AADIntAccessTokenForPTA -SaveToCache
    PS C:\>Set-AADIntDesktopSSOEnabled -Enable $true
 
    Domains : company.com
    Enabled : True
    ErrorMessage :
    Exists : True
    IsSuccessful : True
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [Bool]$Enable=$True
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "cb1056e2-e479-49de-ae31-7812af012ed8" -Resource "https://proxy.cloudwebappproxy.net/registerapp"

        $tenantId = (Read-Accesstoken $AccessToken).tid
        $url="https://$tenantId.registration.msappproxy.net/register/EnableDesktopSsoFlag"

        $body=@"
        <DesktopSsoEnablementRequest xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.RegistrationCommons.Registration" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <AuthenticationToken xmlns="http://schemas.datacontract.org/2004/07/Microsoft.ApplicationProxy.Common.Security.AadSecurity">$AccessToken</AuthenticationToken>
            <Enable>$($Enable.ToString().ToLower())</Enable>
        </DesktopSsoEnablementRequest >
"@

        $results=Invoke-RestMethod -UseBasicParsing -Uri $url -Body $body -Method Post -ContentType "application/xml; charset=utf-8"


        $attributes=@{
            "ErrorMessage" = $results.DesktopSsoEnablementResult.ErrorMessage
            "IsSuccessful" = $($results.DesktopSsoEnablementResult.IsSuccessful -eq "true")
        }

        return New-Object -TypeName PSObject -Property $attributes
    }
}

# Gets the kerberos domain sync configuration
# May 11th 2020
function Get-KerberosDomainSyncConfig
{
<#
    .SYNOPSIS
    Gets tenant's Kerberos domain sync configuration
 
    .DESCRIPTION
    Gets tenant's Kerberos domain sync configuration using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
 
    .Example
 
    Get-AADIntKerberosDomainSyncConfig
 
    PublicEncryptionKey SecuredEncryptionAlgorithm SecuredKeyId SecuredPartitionId
    ------------------- -------------------------- ------------ ------------------
    RUNLMSAAAABOD8OPj7I3nfeuh7ELE47OtA3yvyryQ0wamf5jPy2uGKibaTRKJd/kFexTpJ8siBxszKCXC2sn1Fd9pEG2y7fu 5 2 15001
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetKerberosDomainSyncConfig xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
        </GetKerberosDomainSyncConfig>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetKerberosDomainSyncConfig"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-KerberosDomainSyncConfig -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetKerberosDomainSyncConfigResponse.GetKerberosDomainSyncConfigResult

            $attributes=[ordered]@{
                "PublicEncryptionKey" =        $res.PublicEncryptionKey
                "SecuredEncryptionAlgorithm" = $res.SecuredEncryptionAlgorithm
                "SecuredKeyId" =               $res.SecuredKeyId
                "SecuredPartitionId" =         $res.SecuredPartitionId
            }

            return New-Object psobject -Property $attributes

        }
    }
}

# Gets the kerberos domain
# May 11th 2020
function Get-KerberosDomain
{
<#
    .SYNOPSIS
    Gets the kerberos domain information.
 
    .DESCRIPTION
    Gets the kerberos domain information.
 
    .Parameter AccessToken
    Access Token
 
    .Parameter DomaiName
    Domain name
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [String]$DomainName,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetKerberosDomain xmlns="http://schemas.microsoft.com/online/aws/change/2010/01" i:nil="true" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <dnsDomainName>$DomainName</dnsDomainName>
        </GetKerberosDomain>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetKerberosDomain"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-KerberosDomain -AccessToken $AccessToken -Recursion ($Recursion+1) -DomainName $DomainName
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetKerberosDomainSyncConfigResponse.GetKerberosDomainSyncConfigResult

            $attributes=[ordered]@{
                "PublicEncryptionKey" =        $res.PublicEncryptionKey
                "SecuredEncryptionAlgorithm" = $res.SecuredEncryptionAlgorithm
                "SecuredKeyId" =               $res.SecuredKeyId
                "SecuredPartitionId" =         $res.SecuredPartitionId
            }

            return New-Object psobject -Property $attributes

        }
    }
}

# Gets monitoring tenant certificate. No idea what this is..
# May 11th 2020
function Get-MonitoringTenantCertificate
{

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetMonitoringTenantCertificate xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
        </GetMonitoringTenantCertificate>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetMonitoringTenantCertificate"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-MonitoringTenantCertificate -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetMonitoringTenantCertificateResponse.GetMonitoringTenantCertificateResult

            
            return $res

        }
    }
}

# Gets the windows credentials sync configuration - if the Azure Domain Services is used
# May 11th 2020
function Get-WindowsCredentialsSyncConfig
{
<#
    .SYNOPSIS
    Gets tenant's Windows credentials synchronization config
 
    .DESCRIPTION
    Gets tenant's Windows credentials synchronization config using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
 
    .Example
    Get-AADIntWindowsCredentialsSyncConfig
 
    EnableWindowsLegacyCredentials EnableWindowsSupplementaCredentials SecretEncryptionCertificate
    ------------------------------ ----------------------------------- ---------------------------
                              True False MIIDJTCCAg2gAwIBAgIQFwRSInW7I...
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetWindowsCredentialsSyncConfig xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
        </GetWindowsCredentialsSyncConfig>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetWindowsCredentialsSyncConfig"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-WindowsCredentialsSyncConfig -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetWindowsCredentialsSyncConfigResponse.GetWindowsCredentialsSyncConfigResult

            $attributes=[ordered]@{
                "EnableWindowsLegacyCredentials" =      $res.EnableWindowsLegacyCredentials -eq "true"
                "EnableWindowsSupplementaCredentials" = $res.EnableWindowsSupplementaCredentials -eq "true"
                "SecretEncryptionCertificate" =         $res.SecretEncryptionCertificate.InnerText

            }

            return New-Object psobject -Property $attributes
            
            return $res

        }
    }
}

# Gets tenant's sync device configuration
# May 11th 2020
function Get-SyncDeviceConfiguration
{
<#
    .SYNOPSIS
    Gets tenant's synchronization device configuration
 
    .DESCRIPTION
    Gets tenant's synchronization device configuration using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
 
    .Example
    Get-AADIntSyncDeviceConfiguration
 
    PublicIssuerCertificates CloudPublicIssuerCertificates
    ------------------------ -----------------------------
    {$null} {MIIDejCCAmKgAwIBAgIQzsvx7rE77rJM...
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <GetDeviceConfiguration xmlns="http://schemas.microsoft.com/online/aws/change/2010/01">
        </GetDeviceConfiguration>
"@

        $Message_id=(New-Guid).ToString()
        $Command="GetDeviceConfiguration"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-DeviceConfiguration -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=$xml_doc.Envelope.Body.GetDeviceConfigurationResponse.GetDeviceConfigurationResult

            $resCloudCerts = $res.CloudPublicIssuerCertificates
            $resCerts =      $res.PublicIssuerCertificates
            $cloudCerts = @()
            $certs = @()

            foreach($cert in $resCloudCerts)
            {
                $cloudCerts += $cert.base64Binary
            }

            foreach($cert in $resCerts)
            {
                $certs += $cert.base64Binary
            }

            return New-Object psobject -Property @{"CloudPublicIssuerCertificates" = $cloudCerts; "PublicIssuerCertificates" = $certs}

            

        }
    }
}



# Get sync capabilities
# May 12th 2020
function Get-SyncCapabilities
{
<#
    .SYNOPSIS
    Gets tenant's synchronization capabilities
 
    .DESCRIPTION
    Gets tenant's synchronization capabilities using Azure AD Sync API
 
    .Parameter AccessToken
    Access Token
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$False)]
        [int]$Recursion=1
    )
    Process
    {
        # Accept only three loops
        if($Recursion -gt 3)
        {
            throw "Too many recursions"
        }

        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create the body block
        $body=@"
        <Capabilities xmlns="http://schemas.microsoft.com/online/aws/change/2010/01" />
"@

        $Message_id=(New-Guid).ToString()
        $Command="Capabilities"

        $serverName=$Script:aadsync_server

        $envelope = Create-SyncEnvelope -AccessToken $AccessToken -Command $Command -Message_id $Message_id -Body $body -Binary -Server $serverName
        
        # Call the API
        $response=Call-ADSyncAPI $envelope -Command "$Command" -Tenant_id (Read-AccessToken($AccessToken)).tid -Message_id $Message_id -Server $serverName

        # Convert binary response to XML
        $xml_doc=BinaryToXml -xml_bytes $response -Dictionary (Get-XmlDictionary -Type WCF)

        if(IsRedirectResponse($xml_doc))
        {
            return Get-SyncObjects2 -AccessToken $AccessToken -Recursion ($Recursion+1)
        }
        else
        {
            # Create a return object
            $res=[xml]$xml_doc.Envelope.Body.CapabilitiesResponse.CapabilitiesResult

            $cap=$res.ServiceCapability.MicrosoftOnline.Protocol.Application

            $blacklist = @()

            foreach($client in $cap.BlackList)
            {
                $blacklist += $client.ClientVersion
            }

            return @{
                "ADSyncLatestVersion" =    $cap.LatestProductVersion
                "ADSyncMinimumVersion" =   $cap.MinimumProductVersion
                "ADSyncBlackList" =        $blacklist
                "ADSyncBlackListEnabled" = $cap.BlackList.Enabled
                }

        }
    }
}

# Joins on-prem device to Azure AD
# Jan 15th 2021
function Join-OnPremDeviceToAzureAD
{
<#
    .SYNOPSIS
    Emulates Azure AD Hybrid Join by adding a device to Azure AD via Synchronization API.
 
    .DESCRIPTION
    Emulates Azure AD Hybrid Join by adding a device to Azure AD via Synchronization API and generates a corresponding certificate (if not provided).
 
    You may use any name, SID, device ID, or certificate you like.
 
    The generated certificate can be used to complete the Hybrid Join using Join-AADIntDeviceToAzureAD. The certificate has no password.
         
    After the synchronisation, the device appears as "Hybrid Azure AD joined" device which registration state is "Pending". The subject of the certificate must be "CN=<DeviceId>" or the Hybrid Join fails.
 
    .Parameter AccessToken
    The access token used to synchronise the device. Must have "Global Admin" or "Directory Synchronization Accounts" role!
    If not given, will be prompted.
 
    .Parameter DeviceName
    The name of the device.
 
    .Parameter SID
    The SID of the device. Must be a valid SID, like "S-1-5-21-1436731841-1414151352-1310210645-8640". If not given, a random SID will be used.
 
    .Parameter Certificate
    A certificate of the device. If not given, a new self-signed certificate will be created and exported to the current folder.
 
    .Parameter DeviceId
    The device id of the device. If not given, a random id will be used.
 
    .EXAMPLE
    Get-AADIntAccessTokenForAADGraph -SaveToCache
 
    PS C\:>Join-AADIntOnPremDeviceToAzureAD -DeviceName "My computer"
 
    Device successfully created:
      Device Name: "My computer"
      Device ID: f24f116f-6e80-425d-8236-09803da7dfbe
      Device SID: S-1-5-21-685966194-1071688910-211446493-3729
      Cloud Anchor: Device_e049c29d-8c8f-4016-b959-98f3fccd668c
      Source Anchor: bxFP8oBuXUKCNgmAPaffvg==
      Cert thumbprint: C59B20BCDE103F8B7911592FD7A8DDDD22696CE0
      Cert file name: "f24f116f-6e80-425d-8236-09803da7dfbe-user.pfx"
 
    .EXAMPLE
    Get-AADIntAccessTokenForAADGraph -SaveToCache
 
    PS C\:>Join-AADIntOnPremDeviceToAzureAD -DeviceName "My computer"
 
    Device successfully created:
      Device Name: "My computer"
      Device ID: f24f116f-6e80-425d-8236-09803da7dfbe
      Device SID: S-1-5-21-685966194-1071688910-211446493-3729
      Cloud Anchor: Device_e049c29d-8c8f-4016-b959-98f3fccd668c
      Source Anchor: bxFP8oBuXUKCNgmAPaffvg==
      Cert thumbprint: C59B20BCDE103F8B7911592FD7A8DDDD22696CE0
      Cert file name: "f24f116f-6e80-425d-8236-09803da7dfbe-user.pfx"
 
    PS C\:>Join-AADIntDeviceToAzureAD -TenantId 4362599e-fd46-44a9-997d-53bc7a3b2947 -DeviceName "My computer" -SID "S-1-5-21-685966194-1071688910-211446493-3729" -PfxFileName .\f24f116f-6e80-425d-8236-09803da7dfbe-user.pfx
 
    Device successfully registered to Azure AD:
      DisplayName: "My computer"
      DeviceId: f24f116f-6e80-425d-8236-09803da7dfbe
      Cert thumbprint: A531B73CFBAB2BA26694BA2AD31113211CC2174A
      Cert file name : "f24f116f-6e80-425d-8236-09803da7dfbe.pfx"
#>

    [cmdletbinding()]
    Param(
        [Parameter(Mandatory=$False)]
        [String]$AccessToken,
        [Parameter(Mandatory=$True)]
        [String]$DeviceName,
        [Parameter(Mandatory=$False)]
        [String]$SID,
        [Parameter(Mandatory=$False)]
        [System.Security.Cryptography.X509Certificates.X509Certificate2]$Certificate,
        [Parameter(Mandatory=$False)]
        [GUID]$DeviceId
    )
    Process
    {
        # Get from cache if not provided
        $AccessToken = Get-AccessTokenFromCache -AccessToken $AccessToken -ClientID "1b730954-1685-4b74-9bfd-dac224a7b894" -Resource "https://graph.windows.net"

        # Create a random machine SID if not provided
        if([string]::IsNullOrEmpty($SID))
        {
            Write-Verbose "No SID given, creating a random"
            $SID = New-RandomSID
        }
        $sidObject = [System.Security.Principal.SecurityIdentifier]$SID
        $bSid =      New-Object Byte[] $sidObject.BinaryLength
        $sidObject.GetBinaryForm($bSid,0)
        $b64SID =    Convert-ByteArrayToB64 -Bytes $bSid

        # Create a random device ID if not provided
        if(!$DeviceId)
        {
            Write-Verbose "No DeviceId given, creating a random"
            $DeviceId = New-Guid
        }
        $b64DeviceId = Convert-ByteArrayToB64 -Bytes $DeviceId.ToByteArray()

        # Create a self-signed "user" certificate if not provided
        if(!$Certificate)
        {
            Write-Verbose "No Certificate given, creating a new self-signed certificate"
            $Certificate = New-Certificate -SubjectName "CN=$($DeviceId.ToString())"
            Set-BinaryContent -Path "$($DeviceId.ToString())-user.pfx" -Value $Certificate.Export([System.Security.Cryptography.X509Certificates.X509ContentType]::Pfx)
            $certExported = $true
        }

        if($Certificate.Subject -ne "CN=$DeviceId")
        {
            Write-Warning "The certificate subject ""$($Certificate.Subject)"" does NOT match Device ID ""CN=$DeviceId"""
            Write-Warning "You are NOT able to make hybrid join if the certificate doesn't match!"
        }
                
        # Get the public key
        $userCert = Convert-ByteArrayToB64 -Bytes  ($Certificate.Export([System.Security.Cryptography.X509Certificates.X509ContentType]::Cert))
        
        $response = Set-AzureADObject -AccessToken $AccessToken -accountEnabled $true -SourceAnchor $b64DeviceId -deviceId $b64DeviceId -displayName $DeviceName -onPremiseSecurityIdentifier $b64SID -ObjectType Device -deviceOSType Windows -deviceTrustType ServerAd -userCertificate $userCert -Operation Add

        if($response.ResultCode -eq "Success")
        {
            # Print out information
            Write-Host "Device successfully created:"
            Write-Host " Device Name: ""$DeviceName"""
            Write-Host " Device ID: $($DeviceId.ToString())"
            Write-Host " Device SID: $SID"
            Write-Host " Cloud Anchor: $($response.CloudAnchor)"
            Write-Host " Source Anchor: $($response.SourceAnchor)"
            Write-Host " Cert thumbprint: $($Certificate.Thumbprint)"
            if($certExported)
            {
                Write-host " Cert file name: ""$($DeviceId.ToString())-user.pfx"""
            }
        }
        else
        {
            $response
        }
    }
}