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Fix calendar emails to be outlook compatible #12946

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Fix calendar emails to be outlook compatible #12946

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e5e3169
Implementation of #12885
hdijkema Dec 9, 2018
e60ba22
Implementation of #12885. Removed the workaround for nextcloud/3rdpar…
hdijkema Dec 18, 2018
f32f400
Update apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
MorrisJobke Jan 14, 2019
904bead
Update apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
MorrisJobke Jan 14, 2019
71e628b
Update lib/public/Mail/IMessage.php
MorrisJobke Jan 14, 2019
7db07e7
Update lib/private/Mail/Message.php
MorrisJobke Jan 14, 2019
b1d4917
Removed previous commented out code.
hdijkema Jan 14, 2019
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15 changes: 10 additions & 5 deletions apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
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Original file line number Diff line number Diff line change
Expand Up @@ -244,12 +244,17 @@ public function schedule(Message $iTipMessage) {
$template->addFooter();
$message->useTemplate($template);

$attachment = $this->mailer->createAttachment(
$iTipMessage->message->serialize(),
'event.ics',// TODO(leon): Make file name unique, e.g. add event id
'text/calendar; method=' . $iTipMessage->method
# We choose to work like Thunderbird Lightning.
# using a plain text text/calendar ics.
# This plain text text/calendar part is needed for
# Microsoft Outlook versions <= 2010 to work.

$itip_msg = $iTipMessage->message->serialize();
$message->addPart(
$itip_msg,
'text/calendar; method=' . $iTipMessage->method,
'UTF-8'
);
$message->attach($attachment);

try {
$failed = $this->mailer->send($message);
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20 changes: 20 additions & 0 deletions lib/private/Mail/Message.php
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Expand Up @@ -58,6 +58,26 @@ public function attach(IAttachment $attachment): IMessage {
return $this;
}

/**
* @param $body: body of the mime part
* @param $content-type = null: Mime Content-Type (e.g. text/plain or text/calendar)
* @param $charset = null: Character Set (e.g. UTF-8)
* @return $this
* @since 16.0.0
*/
public function addPart($data, $content_type = null, $charset = null): IMessage {
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The method here works different than addPart https://github.com/nextcloud/3rdparty/blob/da8e24b48079cec2f9c8be950f7b996bce172190/swiftmailer/swiftmailer/lib/classes/Swift/Message.php#L72 (from swiftmailer). I would prefer another name than because addPart from swiftmailer add a part with the current encoder while these method always uses 8bit encoder. I would add getEncoder and setEncoder and set the encoding from IMipPlugin but lets ask @nickvergessen first.

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Suggested change
public function addPart($data, $content_type = null, $charset = null): IMessage {
public function addPart($data, $contentType = null, $charset = null): IMessage {

# To be sure this works with iCalendar messages, we encode with 8bit instead of
# quoted-printable encoding. We save the current encoder, replace the current
# encoder with an 8bit encoder and after we've finished, we reset the encoder
# to the previous one.
$encoder = $this->swiftMessage->getEncoder();
$eightbit_encoder = new \Swift_Mime_ContentEncoder_PlainContentEncoder("8bit");
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Suggested change
$eightbit_encoder = new \Swift_Mime_ContentEncoder_PlainContentEncoder("8bit");
$eightbitEncoder = new \Swift_Mime_ContentEncoder_PlainContentEncoder('8bit');

$this->swiftMessage->setEncoder($eightbit_encoder);
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Suggested change
$this->swiftMessage->setEncoder($eightbit_encoder);
$this->swiftMessage->setEncoder($eightbitEncoder);

$this->swiftMessage->addPart($data, $content_type, $charset);
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Suggested change
$this->swiftMessage->addPart($data, $content_type, $charset);
$this->swiftMessage->addPart($data, $contentType, $charset);

$this->swiftMessage->setEncoder($encoder);
return $this;
}

/**
* SwiftMailer does currently not work with IDN domains, this function therefore converts the domains
* FIXME: Remove this once SwiftMailer supports IDN
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9 changes: 9 additions & 0 deletions lib/public/Mail/IMessage.php
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Expand Up @@ -39,6 +39,15 @@ interface IMessage {
*/
public function attach(IAttachment $attachment): IMessage;

/**
* @param $body: body of the mime part
* @param $content-type = null: Mime Content-Type (e.g. text/plain or text/calendar)
* @param $charset = null: Character Set (e.g. UTF-8)
* @return IMessage
* @since 16.0.0
*/
public function addPart($body, $content_type = null, $charset = null): IMessage;

/**
* Set the from address of this message.
*
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