functions/private/Connect-O365.ps1
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function Connect-O365 { [cmdletbinding()] param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [pscredential] $Credential ) try{ $i= 0 $session365 = $null while($session365 -eq $null -and ((get-command get-unifiedgroup -ErrorAction Ignore) -eq $null)){ $i++ write-log -message "Attempting Exchange Online Connection ($i)" $session365 = New-PSSession ` -ConfigurationName Microsoft.Exchange ` -ConnectionUri "https://ps.outlook.com/powershell/" ` -Credential $Credential ` -Authentication Basic ` -AllowRedirection ` -WarningAction Ignore if($? -eq $false){ throw $Error[0] } start-sleep -Seconds 10 if(!$session365){ write-log -message "Null-Session received, retrying... ($i)" } else { $return = Invoke-Command -Session $session365 -ScriptBlock {get-command -Name get-unifiedgroup -ErrorAction Ignore} if($? -eq $false){ throw $Error[0] } if(($return) -eq $null){ write-log -message "Session Received, but no commands present ($i)" invoke-command -Session $session365 -ScriptBlock {Exit-PSSession} Remove-PSSession $session365 $session365 = $null } else { # Import-Module (Import-PSSession $session365 -AllowClobber) -Global } } } $null = Import-Module (Import-PSSession $session365 -AllowClobber) -Global $session365 } catch { if($session365){ remove-pssession $session365 } throw "Error during Exchange Online Connection: $_" } } |