Some email clients automatically set Content-Disposition to inline for
specific content types, such as images. In cases where the email body is
empty, inline attachments may not display correctly due to our previous
implementation. Our assumption was that these attachments are referenced
within text/plain or text/html parts.
Customer-reported issues, especially with Apple Mail, show emails with
attachments marked as inline but without any corresponding text parts.
This leads to missing attachments even though would have processed the
attachment.
This update introduces a check for the presence of a text part. If none
exists, inline attachments are treated as regular attachments and added
to the external attachments array, ensuring that all attachments display
properly.
<details>
<summary><b>Script to update the existing emails that are already
available in the system</b></summary>
```rb
def update_content id
message = Message.find id
conversation = message.conversation
message_id = message.source_id
channel = message.inbox.channel
authentication_type = 'XOAUTH2'
imap_password = Google::RefreshOauthTokenService.new(channel: channel).access_token
imap = Net::IMAP.new(channel.imap_address, port: channel.imap_port, ssl: true)
imap.authenticate(authentication_type, channel.imap_login, imap_password)
imap.select('INBOX')
results = imap.search(['HEADER', 'MESSAGE-ID', message_id])
message_content = imap.fetch(results.first, 'RFC822').first.attr['RFC822']
mail = MailPresenter.new(Mail.read_from_string(message_content))
mail_content = if mail.text_content.present?
mail.text_content[:reply]
elsif mail.html_content.present?
mail.html_content[:reply]
end
attachments = mail.attachments.last(Message::NUMBER_OF_PERMITTED_ATTACHMENTS)
inline_attachments = attachments.select { |attachment| attachment[:original].inline? && mail_content.present? }
regular_attachments = attachments - inline_attachments
regular_attachments.each do |mail_attachment|
attachment = message.attachments.new(
account_id: conversation.account_id,
file_type: 'file'
)
attachment.file.attach(mail_attachment[:blob])
end
message.save!
end
```
</details>
Message search would frequently timeout. The reason was that the query would join the conversation too, the new query searches the message table directly
Co-authored-by: Sojan <sojan@pepalo.com>
This change allows the user to configure both IMAP and SMTP for an email inbox. IMAP enables the user to see emails in Chatwoot. And user can use SMTP to reply to an email conversation.
Users can use the default settings to send and receive emails for email inboxes if both IMAP and SMTP are disabled.
Fixes#2520
