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refactor: strategy pattern for mailbox conversation finding (#12766)

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Co-authored-by: Pranav <pranav@chatwoot.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
This commit is contained in:
Shivam Mishra
2025-11-10 20:47:18 +05:30
committed by GitHub
parent fb1aa085cf
commit 615e81731c
19 changed files with 1527 additions and 553 deletions
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31
app/mailboxes/application_mailbox.rb
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@@ -4,38 +4,21 @@ class ApplicationMailbox < ActionMailbox::Base
# Last part is the regex for the UUID
# Eg: email should be something like : reply+6bdc3f4d-0bec-4515-a284-5d916fdde489@domain.com
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
CONVERSATION_MESSAGE_ID_PATTERN = %r{conversation/([a-zA-Z0-9-]*?)/messages/(\d+?)@(\w+\.\w+)}
# routes as a reply to existing conversations
# Route all emails to verified channels to the unified reply mailbox
# The ConversationFinder will determine if it's a reply or new conversation
routing(
->(inbound_mail) { valid_to_address?(inbound_mail) && (reply_uuid_mail?(inbound_mail) || in_reply_to_mail?(inbound_mail)) } => :reply
)
# routes as a new conversation in email channel
routing(
->(inbound_mail) { valid_to_address?(inbound_mail) && EmailChannelFinder.new(inbound_mail.mail).perform.present? } => :support
lambda { |inbound_mail|
valid_to_address?(inbound_mail) &&
(reply_uuid_mail?(inbound_mail) || EmailChannelFinder.new(inbound_mail.mail).perform.present?)
} => :reply
)
# catchall
routing(all: :default)
class << self
# checks if follow this pattern then send it to reply_mailbox
# <account/#{@account.id}/conversation/#{@conversation.uuid}@#{@account.inbound_email_domain}>
def in_reply_to_mail?(inbound_mail)
in_reply_to = inbound_mail.mail.in_reply_to
in_reply_to.present? && (
in_reply_to_matches?(in_reply_to) || Message.exists?(source_id: in_reply_to)
)
end
def in_reply_to_matches?(in_reply_to)
Array.wrap(in_reply_to).any? { it.match?(CONVERSATION_MESSAGE_ID_PATTERN) }
end
# checks if follow this pattern send it to reply_mailbox
# reply+<conversation-uuid>@<mailer-domain.com>
# checks if follows this pattern: reply+<conversation-uuid>@<mailer-domain.com>
def reply_uuid_mail?(inbound_mail)
inbound_mail.mail.to&.any? do |email|
conversation_uuid = email.split('@')[0]