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module AutorejectHelper
def should_reject?(uri = nil)
if uri.nil?
if @object
uri = object_uri.start_with?('http') ? object_uri : @object['url']
elsif @json
uri = @json['id']
end
end
return if uri.nil?
domain = uri.scan(/[\w\-]+\.[\w\-]+(?:\.[\w\-]+)*/).first
blocks = DomainBlock.suspend
return true if blocks.where(domain: domain).or(blocks.where('domain LIKE ?', "%.#{domain}")).exists?
return unless @json || @object
context = @object['@context'] if @object
if @json
oid = @json['id']
if oid
return true if ENV.fetch('REJECT_IF_ID_STARTS_WITH', '').split.any? { |r| oid.start_with?(r) }
return true if ENV.fetch('REJECT_IF_ID_CONTAINS', '').split.any? { |r| r.in?(oid) }
end
username = @json['preferredUsername'] || @json['username']
if username && username.is_a?(String)
username = (@json['actor'] && @json['actor'].is_a?(String)) ? @json['actor'] : ''
username = username.scan(/(?<=\/user\/|\/@|\/users\/)([^\s\/]+)/).first
end
unless username.blank?
username.downcase!
return true if ENV.fetch('REJECT_IF_USERNAME_EQUALS', '').split.any? { |r| r == username }
return true if ENV.fetch('REJECT_IF_USERNAME_STARTS_WITH', '').split.any? { |r| username.start_with?(r) }
return true if ENV.fetch('REJECT_IF_USERNAME_CONTAINS', '').split.any? { |r| r.in?(username) }
end
context = @json['@context'] unless @object && context
end
return unless context
if context.is_a?(Array)
inline_context = context.find { |item| item.is_a?(Hash) }
if inline_context
keys = inline_context.keys
return true if ENV.fetch('REJECT_IF_CONTEXT_EQUALS', '').split.any? { |r| r.in?(keys) }
return true if ENV.fetch('REJECT_IF_CONTEXT_STARTS_WITH', '').split.any? { |r| keys.any? { |k| k.start_with?(r) } }
return true if ENV.fetch('REJECT_IF_CONTEXT_CONTAINS', '').split.any? { |r| keys.any? { |k| r.in?(k) } }
end
end
false
end
def autoreject?(uri = nil)
return false if @options && @options[:imported]
if should_reject?(uri)
if @json
Rails.logger.info("Auto-rejected #{@json['id']} (#{@json['type']})")
LogWorker.perform_async("Auto-rejected an incoming '#{@json['type']}#{@object && " #{@object['type']}".rstrip}' from #{@json['id']}.")
elsif uri
Rails.logger.info("Auto-rejected #{uri}")
LogWorker.perform_async("Auto-rejected a request to #{uri}.")
end
return true
end
false
end
end
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