112 lines
3.7 KiB
Ruby
112 lines
3.7 KiB
Ruby
# Copyright (c) 2010-2011, Diaspora Inc. This file is
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# licensed under the Affero General Public License version 3 or later. See
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# the COPYRIGHT file.
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class Postzord::Receiver::Private < Postzord::Receiver
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def initialize(user, opts={})
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@user = user
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@user_person = @user.person
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@salmon_xml = opts[:salmon_xml]
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@sender = opts[:person] || Webfinger.new(self.salmon.author_id).fetch
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@author = @sender
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@object = opts[:object]
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end
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def receive!
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if @sender && self.salmon.verified_for_key?(@sender.public_key)
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parse_and_receive(salmon.parsed_data)
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else
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FEDERATION_LOGGER.info("event=receive status=abort recipient=#{@user.diaspora_handle} sender=#{@salmon.author_id} reason='not_verified for key'")
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false
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end
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rescue => e
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#this sucks
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FEDERATION_LOGGER.error("Failure to receive #{@object.class} from sender:#{@sender.id} for user:#{@user.id}: #{e.message}\n#{@object.inspect}")
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raise e
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end
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def parse_and_receive(xml)
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@object ||= Diaspora::Parser.from_xml(xml)
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return if @object.nil?
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FEDERATION_LOGGER.info("user:#{@user.id} starting private receive from person:#{@sender.guid}")
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if self.validate_object
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set_author!
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receive_object
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FEDERATION_LOGGER.info("object received: [#{@object.class}#{@object.respond_to?(:text) ? ":'#{@object.text}'" : ''}]")
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else
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FEDERATION_LOGGER.error("failed to receive object from #{@object.author}: #{@object.inspect}")
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raise "not a valid object:#{@object.inspect}"
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end
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end
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# @return [Object]
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def receive_object
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obj = @object.receive(@user, @author)
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Notification.notify(@user, obj, @author) if obj.respond_to?(:notification_type)
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FEDERATION_LOGGER.info("user:#{@user.id} successfully received private post from person #{@sender.guid}: #{@object.inspect}")
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obj
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end
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protected
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def salmon
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@salmon ||= Salmon::EncryptedSlap.from_xml(@salmon_xml, @user)
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end
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def validate_object
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raise Diaspora::ContactRequiredUnlessRequest if contact_required_unless_request
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raise Diaspora::RelayableObjectWithoutParent if relayable_without_parent?
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assign_sender_handle_if_request
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raise Diaspora::AuthorXMLAuthorMismatch if author_does_not_match_xml_author?
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@object
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end
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def xml_author
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if @object.respond_to?(:relayable?)
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#if A and B are friends, and A sends B a comment from C, we delegate the validation to the owner of the post being commented on
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xml_author = @user.owns?(@object.parent) ? @object.diaspora_handle : @object.parent_author.diaspora_handle
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@author = Webfinger.new(@object.diaspora_handle).fetch if @object.author
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else
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xml_author = @object.diaspora_handle
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end
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xml_author
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end
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def set_author!
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return unless @author
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@object.author = @author if @object.respond_to? :author=
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@object.person = @author if @object.respond_to? :person=
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end
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private
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#validations
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def relayable_without_parent?
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if @object.respond_to?(:relayable?) && @object.parent.nil?
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FEDERATION_LOGGER.error("event=receive status=abort reason='received a comment but no corresponding post' recipient=#{@user_person.diaspora_handle} sender=#{@sender.diaspora_handle} payload_type=#{@object.class})")
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return true
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end
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end
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def contact_required_unless_request
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unless @object.is_a?(Request) || @user.contact_for(@sender)
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FEDERATION_LOGGER.error("event=receive status=abort reason='sender not connected to recipient' recipient=#{@user_person.diaspora_handle} sender=#{@sender.diaspora_handle}")
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return true
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end
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end
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def assign_sender_handle_if_request
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#special casey
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if @object.is_a?(Request)
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@object.sender_handle = @sender.diaspora_handle
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end
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end
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end
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