forked from mstdn/mastodon
c947e2e4c5
* Fix handling of malformed ActivityPub payloads when URIs are nil * Gracefully handle JSON-LD canonicalization failures
122 lines
3.3 KiB
Ruby
122 lines
3.3 KiB
Ruby
# frozen_string_literal: true
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require 'singleton'
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class ActivityPub::TagManager
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include Singleton
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include RoutingHelper
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CONTEXT = 'https://www.w3.org/ns/activitystreams'
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COLLECTIONS = {
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public: 'https://www.w3.org/ns/activitystreams#Public',
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}.freeze
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def url_for(target)
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return target.url if target.respond_to?(:local?) && !target.local?
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case target.object_type
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when :person
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short_account_url(target)
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when :note, :comment, :activity
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return activity_account_status_url(target.account, target) if target.reblog?
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short_account_status_url(target.account, target)
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end
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end
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def uri_for(target)
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return target.uri if target.respond_to?(:local?) && !target.local?
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case target.object_type
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when :person
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account_url(target)
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when :note, :comment, :activity
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return activity_account_status_url(target.account, target) if target.reblog?
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account_status_url(target.account, target)
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when :emoji
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emoji_url(target)
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end
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end
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def generate_uri_for(_target)
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URI.join(root_url, 'payloads', SecureRandom.uuid)
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end
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def activity_uri_for(target)
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raise ArgumentError, 'target must be a local activity' unless %i(note comment activity).include?(target.object_type) && target.local?
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activity_account_status_url(target.account, target)
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end
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# Primary audience of a status
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# Public statuses go out to primarily the public collection
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# Unlisted and private statuses go out primarily to the followers collection
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# Others go out only to the people they mention
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def to(status)
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case status.visibility
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when 'public'
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[COLLECTIONS[:public]]
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when 'unlisted', 'private'
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[account_followers_url(status.account)]
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when 'direct'
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status.mentions.map { |mention| uri_for(mention.account) }
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end
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end
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# Secondary audience of a status
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# Public statuses go out to followers as well
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# Unlisted statuses go to the public as well
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# Both of those and private statuses also go to the people mentioned in them
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# Direct ones don't have a secondary audience
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def cc(status)
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cc = []
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cc << uri_for(status.reblog.account) if status.reblog?
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case status.visibility
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when 'public'
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cc << account_followers_url(status.account)
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when 'unlisted'
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cc << COLLECTIONS[:public]
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end
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cc.concat(status.mentions.map { |mention| uri_for(mention.account) }) unless status.direct_visibility?
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cc
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end
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def local_uri?(uri)
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return false if uri.nil?
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uri = Addressable::URI.parse(uri)
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host = uri.normalized_host
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host = "#{host}:#{uri.port}" if uri.port
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!host.nil? && (::TagManager.instance.local_domain?(host) || ::TagManager.instance.web_domain?(host))
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end
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def uri_to_local_id(uri, param = :id)
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path_params = Rails.application.routes.recognize_path(uri)
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path_params[param]
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end
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def uri_to_resource(uri, klass)
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return if uri.nil?
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if local_uri?(uri)
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case klass.name
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when 'Account'
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klass.find_local(uri_to_local_id(uri, :username))
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else
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StatusFinder.new(uri).status
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end
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elsif OStatus::TagManager.instance.local_id?(uri)
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klass.find_by(id: OStatus::TagManager.instance.unique_tag_to_local_id(uri, klass.to_s))
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else
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klass.find_by(uri: uri.split('#').first)
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end
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rescue ActiveRecord::RecordNotFound
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nil
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end
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end
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