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58 lines
2.1 KiB
Ruby
58 lines
2.1 KiB
Ruby
class ApplicationMailbox < ActionMailbox::Base
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include MailboxHelper
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# Last part is the regex for the UUID
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# Eg: email should be something like : reply+6bdc3f4d-0bec-4515-a284-5d916fdde489@domain.com
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REPLY_EMAIL_UUID_PATTERN = /^reply\+([0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12})$/i
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CONVERSATION_MESSAGE_ID_PATTERN = %r{conversation/([a-zA-Z0-9-]*?)/messages/(\d+?)@(\w+\.\w+)}
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# routes as a reply to existing conversations
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routing(
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->(inbound_mail) { valid_to_address?(inbound_mail) && (reply_uuid_mail?(inbound_mail) || in_reply_to_mail?(inbound_mail)) } => :reply
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)
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# routes as a new conversation in email channel
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routing(
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->(inbound_mail) { valid_to_address?(inbound_mail) && EmailChannelFinder.new(inbound_mail.mail).perform.present? } => :support
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)
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# catchall
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routing(all: :default)
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class << self
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# checks if follow this pattern then send it to reply_mailbox
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# <account/#{@account.id}/conversation/#{@conversation.uuid}@#{@account.inbound_email_domain}>
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def in_reply_to_mail?(inbound_mail)
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in_reply_to = inbound_mail.mail.in_reply_to
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in_reply_to.present? && (
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in_reply_to_matches?(in_reply_to) || Message.exists?(source_id: in_reply_to)
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)
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end
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def in_reply_to_matches?(in_reply_to)
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Array.wrap(in_reply_to).any? { it.match?(CONVERSATION_MESSAGE_ID_PATTERN) }
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end
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# checks if follow this pattern send it to reply_mailbox
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# reply+<conversation-uuid>@<mailer-domain.com>
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def reply_uuid_mail?(inbound_mail)
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inbound_mail.mail.to&.any? do |email|
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conversation_uuid = email.split('@')[0]
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conversation_uuid.match?(REPLY_EMAIL_UUID_PATTERN)
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end
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end
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# if mail.to returns a string, then it is a malformed `to` header
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# valid `to` header will be of type Mail::AddressContainer
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# validate if the to address is of type string
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def valid_to_address?(inbound_mail)
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to_address_class = inbound_mail.mail.to&.class
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return true if to_address_class == Mail::AddressContainer
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Rails.logger.error "Email to address header is malformed `#{inbound_mail.mail.to}`"
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false
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end
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end
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end
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