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4f6af87906
Instead of detecting spam on first duplicate message, add a threshold of 5 such messages to reduce false positives
70 lines
2.1 KiB
Ruby
70 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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class ProcessMentionsService < BaseService
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include Payloadable
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# Scan status for mentions and fetch remote mentioned users, create
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# local mention pointers, send Salmon notifications to mentioned
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# remote users
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# @param [Status] status
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def call(status)
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return unless status.local?
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@status = status
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mentions = []
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status.text = status.text.gsub(Account::MENTION_RE) do |match|
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username, domain = Regexp.last_match(1).split('@')
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mentioned_account = Account.find_remote(username, domain)
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if mention_undeliverable?(mentioned_account)
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begin
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mentioned_account = resolve_account_service.call(Regexp.last_match(1))
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rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::UnexpectedResponseError
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mentioned_account = nil
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end
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end
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next match if mention_undeliverable?(mentioned_account) || mentioned_account&.suspended?
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mentions << mentioned_account.mentions.where(status: status).first_or_create(status: status)
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"@#{mentioned_account.acct}"
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end
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status.save!
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check_for_spam(status)
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mentions.each { |mention| create_notification(mention) }
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end
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private
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def mention_undeliverable?(mentioned_account)
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mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus?)
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end
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def create_notification(mention)
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mentioned_account = mention.account
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if mentioned_account.local?
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LocalNotificationWorker.perform_async(mentioned_account.id, mention.id, mention.class.name)
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elsif mentioned_account.activitypub?
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ActivityPub::DeliveryWorker.perform_async(activitypub_json, mention.status.account_id, mentioned_account.inbox_url)
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end
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end
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def activitypub_json
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return @activitypub_json if defined?(@activitypub_json)
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@activitypub_json = Oj.dump(serialize_payload(@status, ActivityPub::ActivitySerializer, signer: @status.account))
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end
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def resolve_account_service
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ResolveAccountService.new
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end
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def check_for_spam(status)
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SpamCheck.perform(status)
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end
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end
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