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IT-Glue-O365-GuestAccess.ps1
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IT-Glue-O365-GuestAccess.ps1
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######### Secrets #########
$ApplicationId = 'ApplicationID'
$ApplicationSecret = 'ApplicationSecret' | ConvertTo-SecureString -Force -AsPlainText
$TenantID = 'TenantID'
$RefreshToken = 'LongRefreshToken'
$ExchangeRefreshToken = 'LongExchangeRefreshToken'
$UPN = "YourPrettyUpnUsedToGenerateTokens"
######### Secrets #########
######################### IT-Glue ############################
$APIKEy = "ITG-API-KEY"
$APIEndpoint = "https://api.eu.itglue.com"
$FlexAssetName = "O365 Guest logbook"
$Description = "A logbook of actions a external user has performed"
########################## IT-Glue ############################
#Grabbing ITGlue Module and installing.
If (Get-Module -ListAvailable -Name "ITGlueAPI") {
Import-module ITGlueAPI
}
Else {
Install-Module ITGlueAPI -Force
Import-Module ITGlueAPI
}
#Settings IT-Glue logon information
Add-ITGlueBaseURI -base_uri $APIEndpoint
Add-ITGlueAPIKey $APIKEy
write-host "Checking if Flexible Asset exists in IT-Glue." -foregroundColor green
$FilterID = (Get-ITGlueFlexibleAssetTypes -filter_name $FlexAssetName).data
if (!$FilterID) {
write-host "Does not exist, creating new." -foregroundColor green
$NewFlexAssetData =
@{
type = 'flexible-asset-types'
attributes = @{
name = $FlexAssetName
icon = 'sitemap'
description = $description
}
relationships = @{
"flexible-asset-fields" = @{
data = @(
@{
type = "flexible_asset_fields"
attributes = @{
order = 1
name = "Guest"
kind = "Text"
required = $true
"show-in-list" = $true
"use-for-title" = $true
}
},
@{
type = "flexible_asset_fields"
attributes = @{
order = 2
name = "Actions"
kind = "Textbox"
required = $false
"show-in-list" = $false
}
}
)
}
}
}
New-ITGlueFlexibleAssetTypes -Data $NewFlexAssetData
$FilterID = (Get-ITGlueFlexibleAssetTypes -filter_name $FlexAssetName).data
}
write-host "Getting IT-Glue contact list" -ForegroundColor Green
$i = 0
$AllITGlueContacts = do {
$Contacts = (Get-ITGlueContacts -page_size 1000 -page_number $i).data.attributes
$i++
$Contacts
Write-Host "Retrieved $($Contacts.count) Contacts" -ForegroundColor Yellow
}while ($Contacts.count % 1000 -eq 0 -and $Contacts.count -ne 0)
write-host "Generating unique ID List" -ForegroundColor Green
$DomainList = foreach ($Contact in $AllITGlueContacts) {
$ITGDomain = ($contact.'contact-emails'.value -split "@")[1]
[PSCustomObject]@{
Domain = $ITGDomain
OrgID = $Contact.'organization-id'
Combined = "$($ITGDomain)$($Contact.'organization-id')"
}
}
$credential = New-Object System.Management.Automation.PSCredential($ApplicationId, $ApplicationSecret)
$aadGraphToken = New-PartnerAccessToken -ApplicationId $ApplicationId -Credential $credential -RefreshToken $refreshToken -Scopes 'https://graph.windows.net/.default' -ServicePrincipal -Tenant $tenantID
$graphToken = New-PartnerAccessToken -ApplicationId $ApplicationId -Credential $credential -RefreshToken $refreshToken -Scopes 'https://graph.microsoft.com/.default' -ServicePrincipal -Tenant $tenantID
Connect-MsolService -AdGraphAccessToken $aadGraphToken.AccessToken -MsGraphAccessToken $graphToken.AccessToken
$customers = Get-MsolPartnerContract -All
foreach ($customer in $customers) {
$domains = Get-MsolDomain -TenantId $customer.TenantId
$token = New-PartnerAccessToken -ApplicationId 'a0c73c16-a7e3-4564-9a95-2bdf47383716'-RefreshToken $ExchangeRefreshToken -Scopes 'https://outlook.office365.com/.default' -Tenant $customer.TenantId
$tokenValue = ConvertTo-SecureString "Bearer $($token.AccessToken)" -AsPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential($upn, $tokenValue)
$customerId = $customer.DefaultDomainName
$session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri "https://ps.outlook.com/powershell-liveid?DelegatedOrg=$($customerId)&BasicAuthToOAuthConversion=true" -Credential $credential -Authentication Basic -AllowRedirection
$null = Import-PSSession $session -allowclobber -DisableNameChecking -CommandName "Search-unifiedAuditLog", "Get-AdminAuditLogConfig"
$GuestUsers = get-msoluser -TenantId $customer.TenantId -all | Where-Object { $_.Usertype -eq "guest" }
if (!$GuestUsers) {
Write-Host "No guests for $($customer.name)" -ForegroundColor Yellow
continue
}
$startDate = (Get-Date).AddDays(-31)
$endDate = (Get-Date)
Write-Host "Retrieving logs for $($customer.name)" -ForegroundColor Blue
foreach ($guest in $GuestUsers) {
$Logs = do {
$log = Search-unifiedAuditLog -SessionCommand ReturnLargeSet -SessionId $customer.name -UserIds $guest.userprincipalname -ResultSize 5000 -StartDate $startDate -EndDate $endDate
$log
Write-Host " Retrieved $($log.count) logs for user $($guest.UserPrincipalName)" -ForegroundColor Green
}while ($Log.count % 5000 -eq 0 -and $log.count -ne 0)
if ($logs) {
$AuditData = $logs.AuditData | ForEach-Object { ConvertFrom-Json $_ }
$FlexAssetBody =
@{
type = "flexible-assets"
attributes = @{
traits = @{
"guest" = $guest.userprincipalname
"actions" = ($AuditData | select-object CreationTime, Operation, ClientIP, UserID, SiteURL, SourceFilename, UserAgent | convertto-html -Fragment | Out-String)
}
}
}
write-output " Finding $($customer.name) in IT-Glue"
$orgid = foreach ($customerDomain in $domains) {
($domainList | Where-Object { $_.domain -eq $customerDomain.name }).'OrgID' | Select-Object -Unique
}
write-output " Uploading O365 guest $($guest.userprincipalname) into IT-Glue"
foreach ($org in $orgID) {
$ExistingFlexAsset = (Get-ITGlueFlexibleAssets -filter_flexible_asset_type_id $FilterID.id -filter_organization_id $org).data | Where-Object { $_.attributes.traits.'guest' -eq $guest.UserPrincipalName }
#If the Asset does not exist, we edit the body to be in the form of a new asset, if not, we just upload.
if (!$ExistingFlexAsset) {
if ($FlexAssetBody.attributes.'organization-id') {
$FlexAssetBody.attributes.'organization-id' = $org
}
else {
$FlexAssetBody.attributes.add('organization-id', $org)
$FlexAssetBody.attributes.add('flexible-asset-type-id', $FilterID.id)
}
write-output " Creating new guest $($guest.userprincipalname) into IT-Glue organisation $org"
New-ITGlueFlexibleAssets -data $FlexAssetBody
}
else {
write-output " Updating guest $($guest.userprincipalname) into IT-Glue organisation $org"
$ExistingFlexAsset = $ExistingFlexAsset | select-object -Last 1
Set-ITGlueFlexibleAssets -id $ExistingFlexAsset.id -data $FlexAssetBody
}
}
}
}
}