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Tweak antispam a bit (#33024)

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Claire 2024-11-22 15:43:16 +01:00 committed by GitHub
parent 04ce5939ae
commit 99f36f1b7b
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1 changed files with 22 additions and 3 deletions
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25
app/lib/antispam.rb
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@ -5,25 +5,36 @@ class Antispam
ACCOUNT_AGE_EXEMPTION = 1.week.freeze ACCOUNT_AGE_EXEMPTION = 1.week.freeze
class DummyStatus < SimpleDelegator
def self.model_name
Mention.model_name
end
def active_mentions
# Don't use the scope but the in-memory array
mentions.filter { |mention| !mention.silent? }
end
end
class SilentlyDrop < StandardError class SilentlyDrop < StandardError
attr_reader :status attr_reader :status
def initialize(status) def initialize(status)
super() super()
@status = status
status.created_at = Time.now.utc status.created_at = Time.now.utc
status.id = Mastodon::Snowflake.id_at(status.created_at) status.id = Mastodon::Snowflake.id_at(status.created_at)
status.in_reply_to_account_id = status.thread&.account_id status.in_reply_to_account_id = status.thread&.account_id
status.delete # Make sure this is not persisted status.delete # Make sure this is not persisted
@status = DummyStatus.new(status)
end end
end end
def local_preflight_check!(status) def local_preflight_check!(status)
return unless spammy_texts.any? { |spammy_text| status.text.include?(spammy_text) } return unless spammy_texts.any? { |spammy_text| status.text.include?(spammy_text) }
return unless status.thread.present? && !status.thread.account.following?(status.account) return unless suspicious_reply_or_mention?(status)
return unless status.account.created_at >= ACCOUNT_AGE_EXEMPTION.ago return unless status.account.created_at >= ACCOUNT_AGE_EXEMPTION.ago
report_if_needed!(status.account) report_if_needed!(status.account)
@ -37,6 +48,14 @@ class Antispam
redis.smembers('antispam:spammy_texts') redis.smembers('antispam:spammy_texts')
end end
def suspicious_reply_or_mention?(status)
parent = status.thread
return true if parent.present? && !Follow.exists?(account_id: parent.account_id, target_account: status.account_id)
account_ids = status.mentions.map(&:account_id).uniq
!Follow.exists?(account_id: account_ids, target_account_id: status.account.id)
end
def report_if_needed!(account) def report_if_needed!(account)
return if Report.unresolved.exists?(account: Account.representative, target_account: account) return if Report.unresolved.exists?(account: Account.representative, target_account: account)