diff options
Diffstat (limited to 'app/lib/ostatus/atom_serializer.rb')
| -rw-r--r-- | app/lib/ostatus/atom_serializer.rb | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/app/lib/ostatus/atom_serializer.rb b/app/lib/ostatus/atom_serializer.rb new file mode 100644 index 000000000..909d84df3 --- /dev/null +++ b/app/lib/ostatus/atom_serializer.rb @@ -0,0 +1,367 @@ +# frozen_string_literal: true + +class Ostatus::AtomSerializer + include RoutingHelper + include ActionView::Helpers::SanitizeHelper + + class << self + def render(element) + document = Ox::Document.new(version: '1.0') + document << element + ('<?xml version="1.0"?>' + Ox.dump(element, effort: :tolerant)).force_encoding('UTF-8') + end + end + + def author(account) + author = Ox::Element.new('author') + + uri = TagManager.instance.uri_for(account) + + append_element(author, 'id', uri) + append_element(author, 'activity:object-type', TagManager::TYPES[:person]) + append_element(author, 'uri', uri) + append_element(author, 'name', account.username) + append_element(author, 'email', account.local? ? account.local_username_and_domain : account.acct) + append_element(author, 'summary', Formatter.instance.simplified_format(account).to_str, type: :html) if account.note? + append_element(author, 'link', nil, rel: :alternate, type: 'text/html', href: TagManager.instance.url_for(account)) + append_element(author, 'link', nil, rel: :avatar, type: account.avatar_content_type, 'media:width': 120, 'media:height': 120, href: full_asset_url(account.avatar.url(:original))) if account.avatar? + append_element(author, 'link', nil, rel: :header, type: account.header_content_type, 'media:width': 700, 'media:height': 335, href: full_asset_url(account.header.url(:original))) if account.header? + append_element(author, 'poco:preferredUsername', account.username) + append_element(author, 'poco:displayName', account.display_name) if account.display_name? + append_element(author, 'poco:note', account.local? ? account.note : strip_tags(account.note)) if account.note? + append_element(author, 'mastodon:scope', account.locked? ? :private : :public) + + author + end + + def feed(account, stream_entries) + feed = Ox::Element.new('feed') + + add_namespaces(feed) + + append_element(feed, 'id', account_url(account, format: 'atom')) + append_element(feed, 'title', account.display_name.presence || account.username) + append_element(feed, 'subtitle', account.note) + append_element(feed, 'updated', account.updated_at.iso8601) + append_element(feed, 'logo', full_asset_url(account.avatar.url(:original))) + + feed << author(account) + + append_element(feed, 'link', nil, rel: :alternate, type: 'text/html', href: TagManager.instance.url_for(account)) + append_element(feed, 'link', nil, rel: :self, type: 'application/atom+xml', href: account_url(account, format: 'atom')) + append_element(feed, 'link', nil, rel: :next, type: 'application/atom+xml', href: account_url(account, format: 'atom', max_id: stream_entries.last.id)) if stream_entries.size == 20 + append_element(feed, 'link', nil, rel: :hub, href: api_push_url) + append_element(feed, 'link', nil, rel: :salmon, href: api_salmon_url(account.id)) + + stream_entries.each do |stream_entry| + feed << entry(stream_entry) + end + + feed + end + + def entry(stream_entry, root = false) + entry = Ox::Element.new('entry') + + add_namespaces(entry) if root + + append_element(entry, 'id', TagManager.instance.unique_tag(stream_entry.created_at, stream_entry.activity_id, stream_entry.activity_type)) + append_element(entry, 'published', stream_entry.created_at.iso8601) + append_element(entry, 'updated', stream_entry.updated_at.iso8601) + append_element(entry, 'title', stream_entry&.status&.title || "#{stream_entry.account.acct} deleted status") + + entry << author(stream_entry.account) if root + + append_element(entry, 'activity:object-type', TagManager::TYPES[stream_entry.object_type]) + append_element(entry, 'activity:verb', TagManager::VERBS[stream_entry.verb]) + + entry << object(stream_entry.target) if stream_entry.targeted? + + if stream_entry.status.nil? + append_element(entry, 'content', 'Deleted status') + else + serialize_status_attributes(entry, stream_entry.status) + end + + append_element(entry, 'link', nil, rel: :alternate, type: 'text/html', href: account_stream_entry_url(stream_entry.account, stream_entry)) + append_element(entry, 'link', nil, rel: :self, type: 'application/atom+xml', href: account_stream_entry_url(stream_entry.account, stream_entry, format: 'atom')) + append_element(entry, 'thr:in-reply-to', nil, ref: TagManager.instance.uri_for(stream_entry.thread), href: TagManager.instance.url_for(stream_entry.thread)) if stream_entry.threaded? + append_element(entry, 'ostatus:conversation', nil, ref: conversation_uri(stream_entry.status.conversation)) unless stream_entry&.status&.conversation_id.nil? + + entry + end + + def object(status) + object = Ox::Element.new('activity:object') + + append_element(object, 'id', TagManager.instance.uri_for(status)) + append_element(object, 'published', status.created_at.iso8601) + append_element(object, 'updated', status.updated_at.iso8601) + append_element(object, 'title', status.title) + + object << author(status.account) + + append_element(object, 'activity:object-type', TagManager::TYPES[status.object_type]) + append_element(object, 'activity:verb', TagManager::VERBS[status.verb]) + + serialize_status_attributes(object, status) + + append_element(object, 'link', nil, rel: :alternate, type: 'text/html', href: TagManager.instance.url_for(status)) + append_element(object, 'thr:in-reply-to', nil, ref: TagManager.instance.uri_for(status.thread), href: TagManager.instance.url_for(status.thread)) unless status.thread.nil? + append_element(object, 'ostatus:conversation', nil, ref: conversation_uri(status.conversation)) unless status.conversation_id.nil? + + object + end + + def follow_salmon(follow) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{follow.account.acct} started following #{follow.target_account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(follow.created_at, follow.id, 'Follow')) + append_element(entry, 'title', description) + append_element(entry, 'content', description, type: :html) + + entry << author(follow.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:follow]) + + object = author(follow.target_account) + object.value = 'activity:object' + + entry << object + entry + end + + def follow_request_salmon(follow_request) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + append_element(entry, 'id', TagManager.instance.unique_tag(follow_request.created_at, follow_request.id, 'FollowRequest')) + append_element(entry, 'title', "#{follow_request.account.acct} requested to follow #{follow_request.target_account.acct}") + + entry << author(follow_request.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:request_friend]) + + object = author(follow_request.target_account) + object.value = 'activity:object' + + entry << object + entry + end + + def authorize_follow_request_salmon(follow_request) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, follow_request.id, 'FollowRequest')) + append_element(entry, 'title', "#{follow_request.target_account.acct} authorizes follow request by #{follow_request.account.acct}") + + entry << author(follow_request.target_account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:authorize]) + + object = Ox::Element.new('activity:object') + object << author(follow_request.account) + + append_element(object, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(object, 'activity:verb', TagManager::VERBS[:request_friend]) + + inner_object = author(follow_request.target_account) + inner_object.value = 'activity:object' + + object << inner_object + entry << object + entry + end + + def reject_follow_request_salmon(follow_request) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, follow_request.id, 'FollowRequest')) + append_element(entry, 'title', "#{follow_request.target_account.acct} rejects follow request by #{follow_request.account.acct}") + + entry << author(follow_request.target_account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:reject]) + + object = Ox::Element.new('activity:object') + object << author(follow_request.account) + + append_element(object, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(object, 'activity:verb', TagManager::VERBS[:request_friend]) + + inner_object = author(follow_request.target_account) + inner_object.value = 'activity:object' + + object << inner_object + entry << object + entry + end + + def unfollow_salmon(follow) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{follow.account.acct} is no longer following #{follow.target_account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, follow.id, 'Follow')) + append_element(entry, 'title', description) + append_element(entry, 'content', description, type: :html) + + entry << author(follow.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:unfollow]) + + object = author(follow.target_account) + object.value = 'activity:object' + + entry << object + entry + end + + def block_salmon(block) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{block.account.acct} no longer wishes to interact with #{block.target_account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, block.id, 'Block')) + append_element(entry, 'title', description) + + entry << author(block.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:block]) + + object = author(block.target_account) + object.value = 'activity:object' + + entry << object + entry + end + + def unblock_salmon(block) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{block.account.acct} no longer blocks #{block.target_account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, block.id, 'Block')) + append_element(entry, 'title', description) + + entry << author(block.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:unblock]) + + object = author(block.target_account) + object.value = 'activity:object' + + entry << object + entry + end + + def favourite_salmon(favourite) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{favourite.account.acct} favourited a status by #{favourite.status.account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(favourite.created_at, favourite.id, 'Favourite')) + append_element(entry, 'title', description) + append_element(entry, 'content', description, type: :html) + + entry << author(favourite.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:favorite]) + + entry << object(favourite.status) + + append_element(entry, 'thr:in-reply-to', nil, ref: TagManager.instance.uri_for(favourite.status), href: TagManager.instance.url_for(favourite.status)) + + entry + end + + def unfavourite_salmon(favourite) + entry = Ox::Element.new('entry') + add_namespaces(entry) + + description = "#{favourite.account.acct} no longer favourites a status by #{favourite.status.account.acct}" + + append_element(entry, 'id', TagManager.instance.unique_tag(Time.now.utc, favourite.id, 'Favourite')) + append_element(entry, 'title', description) + append_element(entry, 'content', description, type: :html) + + entry << author(favourite.account) + + append_element(entry, 'activity:object-type', TagManager::TYPES[:activity]) + append_element(entry, 'activity:verb', TagManager::VERBS[:unfavorite]) + + entry << object(favourite.status) + + append_element(entry, 'thr:in-reply-to', nil, ref: TagManager.instance.uri_for(favourite.status), href: TagManager.instance.url_for(favourite.status)) + + entry + end + + private + + def append_element(parent, name, content = nil, attributes = {}) + element = Ox::Element.new(name) + attributes.each { |k, v| element[k] = sanitize_str(v) } + element << sanitize_str(content) unless content.nil? + parent << element + end + + def sanitize_str(raw_str) + raw_str.to_s + end + + def conversation_uri(conversation) + return conversation.uri if conversation.uri? + TagManager.instance.unique_tag(conversation.created_at, conversation.id, 'Conversation') + end + + def add_namespaces(parent) + parent['xmlns'] = TagManager::XMLNS + parent['xmlns:thr'] = TagManager::THR_XMLNS + parent['xmlns:activity'] = TagManager::AS_XMLNS + parent['xmlns:poco'] = TagManager::POCO_XMLNS + parent['xmlns:media'] = TagManager::MEDIA_XMLNS + parent['xmlns:ostatus'] = TagManager::OS_XMLNS + parent['xmlns:mastodon'] = TagManager::MTDN_XMLNS + end + + def serialize_status_attributes(entry, status) + append_element(entry, 'summary', status.spoiler_text, 'xml:lang': status.language) if status.spoiler_text? + append_element(entry, 'content', Formatter.instance.format(status).to_str, type: 'html', 'xml:lang': status.language) + + status.mentions.each do |mentioned| + append_element(entry, 'link', nil, rel: :mentioned, 'ostatus:object-type': TagManager::TYPES[:person], href: TagManager.instance.uri_for(mentioned.account)) + end + + append_element(entry, 'link', nil, rel: :mentioned, 'ostatus:object-type': TagManager::TYPES[:collection], href: TagManager::COLLECTIONS[:public]) if status.public_visibility? + + status.tags.each do |tag| + append_element(entry, 'category', nil, term: tag.name) + end + + append_element(entry, 'category', nil, term: 'nsfw') if status.sensitive? + + status.media_attachments.each do |media| + append_element(entry, 'link', nil, rel: :enclosure, type: media.file_content_type, length: media.file_file_size, href: full_asset_url(media.file.url(:original, false))) + end + + append_element(entry, 'mastodon:scope', status.visibility) + end +end |