Pleroma/lib/pleroma/web/ostatus/feed_representer.ex

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defmodule Pleroma.Web.OStatus.FeedRepresenter do
alias Pleroma.Web.OStatus
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alias Pleroma.Web.OStatus.{UserRepresenter, ActivityRepresenter}
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def to_simple_form(user, activities, users) do
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most_recent_update = (List.first(activities) || user).updated_at
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|> NaiveDateTime.to_iso8601
h = fn(str) -> [to_charlist(str)] end
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entries = Enum.map(activities, fn(activity) ->
{:entry, ActivityRepresenter.to_simple_form(activity, user)}
end)
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|> Enum.filter(fn ({_, form}) -> form end)
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[{
:feed, [
xmlns: 'http://www.w3.org/2005/Atom',
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"xmlns:activity": 'http://activitystrea.ms/spec/1.0/',
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"xmlns:poco": 'http://portablecontacts.net/spec/1.0',
"xmlns:ostatus": 'http://ostatus.org/schema/1.0'
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], [
{:id, h.(OStatus.feed_path(user))},
{:title, ['#{user.nickname}\'s timeline']},
{:updated, h.(most_recent_update)},
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{:link, [rel: 'hub', href: h.(OStatus.pubsub_path(user))], []},
{:link, [rel: 'salmon', href: h.(OStatus.salmon_path(user))], []},
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{:link, [rel: 'self', href: h.(OStatus.feed_path(user))], []},
{:author, UserRepresenter.to_simple_form(user)},
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] ++ entries
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}]
end
end