akkoma/lib/pleroma/web/twitter_api/twitter_api.ex

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Elixir
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defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
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alias Pleroma.{User, Activity, Repo, Object}
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alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter
import Ecto.Query
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def create_status(user = %User{}, data = %{}) do
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date = DateTime.utc_now() |> DateTime.to_iso8601
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attachments = Enum.map(data["media_ids"] || [], fn (media_id) ->
Repo.get(Object, media_id).data
end)
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context = ActivityPub.generate_context_id
content = HtmlSanitizeEx.strip_tags(data["status"])
mentions = parse_mentions(content)
default_to = [
User.ap_followers(user),
"https://www.w3.org/ns/activitystreams#Public"
]
to = default_to ++ Enum.map(mentions, fn ({_, %{ap_id: ap_id}}) -> ap_id end)
content_html = add_user_links(content, mentions)
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activity = %{
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"type" => "Create",
"to" => to,
"actor" => user.ap_id,
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"object" => %{
"type" => "Note",
"to" => to,
"content" => content_html,
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"published" => date,
"context" => context,
"attachment" => attachments
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},
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"published" => date,
"context" => context
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}
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# Wire up reply info.
activity = with inReplyToId when not is_nil(inReplyToId) <- data["in_reply_to_status_id"],
inReplyTo <- Repo.get(Activity, inReplyToId),
context <- inReplyTo.data["context"]
do
to = activity["to"] ++ [inReplyTo.data["actor"]]
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activity
|> put_in(["to"], to)
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|> put_in(["context"], context)
|> put_in(["object", "context"], context)
|> put_in(["object", "inReplyTo"], inReplyTo.data["object"]["id"])
|> put_in(["object", "inReplyToStatusId"], inReplyToId)
|> put_in(["statusnetConversationId"], inReplyTo.data["statusnetConversationId"])
|> put_in(["object", "statusnetConversationId"], inReplyTo.data["statusnetConversationId"])
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else _e ->
activity
end
with {:ok, activity} <- ActivityPub.insert(activity) do
add_conversation_id(activity)
end
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end
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def fetch_friend_statuses(user, opts \\ %{}) do
ActivityPub.fetch_activities(user.following, opts)
|> activities_to_statuses(%{for: user})
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end
def fetch_public_statuses(user, opts \\ %{}) do
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ActivityPub.fetch_public_activities(opts)
|> activities_to_statuses(%{for: user})
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end
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def fetch_conversation(user, id) do
query = from activity in Activity,
where: fragment("? @> ?", activity.data, ^%{ statusnetConversationId: id}),
limit: 1
with %Activity{} = activity <- Repo.one(query),
context <- activity.data["context"],
activities <- ActivityPub.fetch_activities_for_context(context),
statuses <- activities |> activities_to_statuses(%{for: user})
do
statuses
else e ->
IO.inspect(e)
[]
end
end
def fetch_status(user, id) do
with %Activity{} = activity <- Repo.get(Activity, id) do
activity_to_status(activity, %{for: user})
end
end
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def follow(%User{} = follower, followed_id) do
with %User{} = followed <- Repo.get(User, followed_id),
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{ :ok, follower } <- User.follow(follower, followed),
{ :ok, activity } <- ActivityPub.insert(%{
"type" => "Follow",
"actor" => follower.ap_id,
"object" => followed.ap_id
})
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do
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{ :ok, follower, followed, activity }
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end
end
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def unfollow(%User{} = follower, followed_id) do
with %User{} = followed <- Repo.get(User, followed_id),
{ :ok, follower } <- User.unfollow(follower, followed)
do
{ :ok, follower, followed }
end
end
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def upload(%Plug.Upload{} = file) do
{:ok, object} = ActivityPub.upload(file)
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url = List.first(object.data["url"])
href = url["href"]
type = url["mediaType"]
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# Fake this as good as possible...
"""
<?xml version="1.0" encoding="UTF-8"?>
<rsp stat="ok" xmlns:atom="http://www.w3.org/2005/Atom">
<mediaid>#{object.id}</mediaid>
<media_id>#{object.id}</media_id>
<media_id_string>#{object.id}</media_id_string>
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<media_url>#{href}</media_url>
<mediaurl>#{href}</mediaurl>
<atom:link rel="enclosure" href="#{href}" type="#{type}"></atom:link>
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</rsp>
"""
end
def parse_mentions(text) do
# Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
regex = ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@?[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/
Regex.scan(regex, text)
|> List.flatten
|> Enum.uniq
|> Enum.map(fn ("@" <> match = full_match) -> {full_match, Repo.get_by(User, nickname: match)} end)
|> Enum.filter(fn ({_match, user}) -> user end)
end
def add_user_links(text, mentions) do
Enum.reduce(mentions, text, fn ({match, %User{ap_id: ap_id}}, text) -> String.replace(text, match, "<a href='#{ap_id}'>#{match}</a>") end)
end
defp add_conversation_id(activity) do
if is_integer(activity.data["statusnetConversationId"]) do
{:ok, activity}
else
data = activity.data
|> put_in(["object", "statusnetConversationId"], activity.id)
|> put_in(["statusnetConversationId"], activity.id)
changeset = Ecto.Changeset.change(activity, data: data)
Repo.update(changeset)
end
end
defp activities_to_statuses(activities, opts) do
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Enum.map(activities, fn(activity) ->
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activity_to_status(activity, opts)
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end)
end
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defp activity_to_status(activity, opts) do
actor = get_in(activity.data, ["actor"])
user = Repo.get_by!(User, ap_id: actor)
mentioned_users = Repo.all(from user in User, where: user.ap_id in ^activity.data["to"])
ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, mentioned: mentioned_users}))
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end
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end