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automatically set `suspend` policy on domains that trigger `context` auto-rejections

staging
multiple creatures 2019-08-03 23:30:50 -05:00
parent 4801d5ac84
commit 2be5c8a55c
1 changed files with 25 additions and 10 deletions
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35
app/helpers/autoreject_helper.rb
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@ -1,4 +1,8 @@
module AutorejectHelper
include ModerationHelper
AUTOBLOCK_TRIGGERS = [:context, :context_starts_with, :context_contains]
def should_reject?(uri = nil)
if uri.nil?
if @object
@ -12,7 +16,7 @@ module AutorejectHelper
domain = uri.scan(/[\w\-]+\.[\w\-]+(?:\.[\w\-]+)*/).first
blocks = DomainBlock.suspend
return :domain if blocks.where(domain: domain).or(blocks.where('domain LIKE ?', "%.#{domain}")).exists?
return [:domain, uri] if blocks.where(domain: domain).or(blocks.where('domain LIKE ?', "%.#{domain}")).exists?
return unless @json || @object
@ -21,8 +25,8 @@ module AutorejectHelper
if @json
oid = @json['id']
if oid
return :id_starts_with if ENV.fetch('REJECT_IF_ID_STARTS_WITH', '').split.any? { |r| oid.start_with?(r) }
return :id_contains if ENV.fetch('REJECT_IF_ID_CONTAINS', '').split.any? { |r| r.in?(oid) }
return [:id_starts_with, uri] if ENV.fetch('REJECT_IF_ID_STARTS_WITH', '').split.any? { |r| oid.start_with?(r) }
return [:id_contains, uri] if ENV.fetch('REJECT_IF_ID_CONTAINS', '').split.any? { |r| r.in?(oid) }
end
username = @json['preferredUsername'] || @json['username']
@ -33,9 +37,9 @@ module AutorejectHelper
unless username.blank?
username.downcase!
return :username if ENV.fetch('REJECT_IF_USERNAME_EQUALS', '').split.any? { |r| r == username }
return :username_starts_with if ENV.fetch('REJECT_IF_USERNAME_STARTS_WITH', '').split.any? { |r| username.start_with?(r) }
return :username_contains if ENV.fetch('REJECT_IF_USERNAME_CONTAINS', '').split.any? { |r| r.in?(username) }
return [:username, uri] if ENV.fetch('REJECT_IF_USERNAME_EQUALS', '').split.any? { |r| r == username }
return [:username_starts_with, uri] if ENV.fetch('REJECT_IF_USERNAME_STARTS_WITH', '').split.any? { |r| username.start_with?(r) }
return [:username_contains, uri] if ENV.fetch('REJECT_IF_USERNAME_CONTAINS', '').split.any? { |r| r.in?(username) }
end
context = @json['@context'] unless @object && context
@ -47,9 +51,9 @@ module AutorejectHelper
inline_context = context.find { |item| item.is_a?(Hash) }
if inline_context
keys = inline_context.keys
return :context if ENV.fetch('REJECT_IF_CONTEXT_EQUALS', '').split.any? { |r| r.in?(keys) }
return :context_starts_with if ENV.fetch('REJECT_IF_CONTEXT_STARTS_WITH', '').split.any? { |r| keys.any? { |k| k.start_with?(r) } }
return :context_contains if ENV.fetch('REJECT_IF_CONTEXT_CONTAINS', '').split.any? { |r| keys.any? { |k| r.in?(k) } }
return [:context, uri] if ENV.fetch('REJECT_IF_CONTEXT_EQUALS', '').split.any? { |r| r.in?(keys) }
return [:context_starts_with, uri] if ENV.fetch('REJECT_IF_CONTEXT_STARTS_WITH', '').split.any? { |r| keys.any? { |k| k.start_with?(r) } }
return [:context_contains, uri] if ENV.fetch('REJECT_IF_CONTEXT_CONTAINS', '').split.any? { |r| keys.any? { |k| r.in?(k) } }
end
end
@ -81,12 +85,23 @@ module AutorejectHelper
end
end
def should_autoblock?(reason)
@json['type'] == 'Create' && reason.in?(AUTOBLOCK_TRIGGERS)
end
def autoblock!(uri, reason)
return if uri.nil?
domain = uri.scan(/[\w\-]+\.[\w\-]+(?:\.[\w\-]+)*/).first
domain_policy(uri, :suspend, "Sent an ActivityPub payload (#{uri}) where #{reason}.")
end
def autoreject?(uri = nil)
return false if @options && @options[:imported]
reason = should_reject?(uri)
reason, uri = should_reject?(uri)
if reason
reason = reject_reason(reason)
if @json
autoblock!(uri, reason) if should_autoblock?(reason)
Rails.logger.info("Rejected an incoming '#{@json['type']}#{@object && " #{@object['type']}".rstrip}' from #{@json['id']} because #{reason}.")
elsif uri
Rails.logger.info("Rejected an outgoing request to #{uri} because #{reason}.")