Calendar invites sent through mail provider have bad alternative text

[ChristophWurst]

Steps to reproduce

1. Invite user b as user a
2. Configure the email client to prefer the text over HTML alternative
3. Open the invite email as a

Expected behavior

A readable invite, like you get when mail providers are off.

Actual behavior

--=_Gyc75lphDkdfDv2D6wz_xuM
Content-Type: text/plain; charset=utf-8
Content-Description: Plaintext Version of Message
Content-Transfer-Encoding: 8bit

   @media only screen{html{min-height:100%;background:#fff}}@media only
screen and (max-width:610px){table.body
img{width:auto;height:auto}table.body
center{min-width:0!important}table.body
.container{width:95%!important}table.body
.columns{height:auto!important;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;padding-left:30px!important;padding-right:30px!important}th.small-12{display:inline-block!important;width:100%!important}table.menu{width:100%!important}table.menu
td,table.menu
th{width:auto!important;display:inline-block!important}table.menu.vertical
td,table.menu.vertical
th{display:block!important}table.menu[align=center]{width:auto!important}}


   


  GRETA DOçI WOULD LIKE TO INVITE YOU TO "MEETING"


   


  TITLE:MEETING
  WHEN:IN 17 MINUTES ON MITTWOCH, 27. NOVEMBER 2024 BETWEEN 10:00 - 10:30
(EUROPE/BERLIN)


   


  ACCEPT[1]


  DECLINE[2]


  MORE OPTIONS …


   


   

Nextcloud - a safe home for all your dataThis is an automatically sent
email, please do not reply.

                                                 
         


Links:
------
[1] https://redacted
[2] https://redacted

Mail app version

No response

Nextcloud version

No response

Mailserver or service

No response

Operating system

No response

PHP engine version

None

Nextcloud memory caching

No response

Web server

None

Database

None

Additional info

No response

[SebastianKrupinski]

Tested

Confirmed.

Issue

Server is generating both html and plain text messages properly but mail app sending does not support alternate text (html and plain)

Resolution

Alter OCA\Mail\Service\MailTransmission::sendMessage() line 124 to handle alternate text
Alter OCA\Mail\Db\LocalMessage to handle html and plain text separately
Alter OCA\Mail\Provider\Command\MessageSend::perform() to send both html and plain text

[ChristophWurst]

Alter OCA\Mail\Provider\Command\MessageSend::perform() to send both html and plain text

\OCP\Mail\Provider\IMessage has method to set plain and html body so I assume we are able to do all of this without a signature change in the public OCP API? Nice! 👍

[SebastianKrupinski]

\OCP\Mail\Provider\IMessage has method to set plain and html body so I assume we are able to do all of this without a signature change in the public OCP API? Nice! 👍

Yes, no API changes required

[ChristophWurst]

This is a blocker for the release of v4.1.0