Send-FileViaEmail.psm1
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function Send-FileViaEmail{ [CmdletBinding()] Param( [Parameter(Mandatory=$true)] [ValidateScript({Test-Path $_})] $f, [Parameter(Mandatory=$true)] $m, [Parameter(Mandatory=$false)] [Switch] $useGraph ) if ($useGraph.IsPresent) { # we are merging in an existing graph function. that function uses the full config # because there is a section for graph config as well as a section for the mail details. # the existing function uses cfg first then the file, and we also need to set $m to # the mail property on the larger config object so the join will work later graph $m $f $m = $m.mail } else { nograph $f $m } "Sent {0} to {1}" -f $f, ($m.to -join " & ") } function nograph ($f, $m) { $sp = ConvertTo-SecureString $m.pass -AsPlainText -Force $c = New-Object pscredential ($m.user, $sp) $a = @{ Port = $m.port Credential = $c UseSsl = $true SmtpServer = $m.smtp From = $m.from To = $m.to Subject = $m.subject Attachments = $f } Send-MailMessage @a } function graph ($cfg, $file) { $file = (resolve-path $file).path $tokenParams = @{ "URI" = "https://login.microsoftonline.com/{0}/oauth2/v2.0/token" -f $cfg.msgraph.tenant_id "Method" = "POST" "Body" = @{ client_id = $cfg.msgraph.client_id scope = "https://graph.microsoft.com/.default" client_secret = $cfg.msgraph.client_secret grant_type = "client_credentials" } } $tokenresponse = Invoke-RestMethod @tokenParams $emailParams = @{ "URI" = "https://graph.microsoft.com/v1.0/users/{0}/sendMail" -f $cfg.mail.from "Headers" = @{ 'Content-Type' = "application\json" 'Authorization' = "Bearer {0}" -f $tokenresponse.access_token } "Method" = "POST" "ContentType" = 'application/json' "Body" = (@{ "message" = @{ "subject" = $cfg.mail.subject "attachments" = @( @{ "@odata.type" = "#microsoft.graph.fileAttachment" "name" = $file "contentType" = [System.Web.MimeMapping]::GetMimeMapping($file) "contentBytes" = [convert]::ToBase64String( [system.io.file]::readallbytes($file)) }) "toRecipients" = @( $cfg.mail.to | ForEach-Object { @{ "emailAddress" = @{"address" = $_ } } } ) } }) | ConvertTo-JSON -Depth 6 } Invoke-RestMethod @emailParams } Export-ModuleMember -Function Send-FileViaEmail |