defmodule Pleroma.Web.OStatus do
import Ecto.Query
+ import Pleroma.Web.XML
require Logger
- alias Pleroma.{Repo, User, Web}
+ alias Pleroma.{Repo, User, Web, Object}
alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.{WebFinger, Websub}
def feed_path(user) do
"#{user.ap_id}/feed.atom"
end
def handle_incoming(xml_string) do
- {doc, _rest} = :xmerl_scan.string(to_charlist(xml_string))
+ doc = parse_document(xml_string)
+ entries = :xmerl_xpath.string('//entry', doc)
+
+ activities = Enum.map(entries, fn (entry) ->
+ {:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', entry)
+ {:xmlObj, :string, verb } = :xmerl_xpath.string('string(/entry/activity:verb[1])', entry)
+
+ case verb do
+ 'http://activitystrea.ms/schema/1.0/share' ->
+ with {:ok, activity, retweeted_activity} <- handle_share(entry, doc), do: [activity, retweeted_activity]
+ _ ->
+ case object_type do
+ 'http://activitystrea.ms/schema/1.0/note' ->
+ with {:ok, activity} <- handle_note(entry, doc), do: activity
+ 'http://activitystrea.ms/schema/1.0/comment' ->
+ with {:ok, activity} <- handle_note(entry, doc), do: activity
+ _ ->
+ Logger.error("Couldn't parse incoming document")
+ nil
+ end
+ end
+ end)
+ {:ok, activities}
+ end
- {:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', doc)
+ def make_share(entry, doc, retweeted_activity) do
+ with {:ok, actor} <- find_make_or_update_user(doc),
+ %Object{} = object <- Object.get_cached_by_ap_id(retweeted_activity.data["object"]["id"]),
+ {:ok, activity, object} = ActivityPub.announce(actor, object, false) do
+ {:ok, activity}
+ end
+ end
- case object_type do
- 'http://activitystrea.ms/schema/1.0/note' ->
- handle_note(doc)
- _ ->
- Logger.error("Couldn't parse incoming document")
+ def handle_share(entry, doc) do
+ with [object] <- :xmerl_xpath.string('/entry/activity:object', entry),
+ {:ok, retweeted_activity} <- handle_note(object, object),
+ {:ok, activity} <- make_share(entry, doc, retweeted_activity) do
+ {:ok, activity, retweeted_activity}
+ else
+ e -> {:error, e}
end
end
- # TODO
- # Parse mention
- # wire up replies
- # Set correct context
- # Set correct statusnet ids.
- def handle_note(doc) do
- content_html = string_from_xpath("/entry/content[1]", doc)
+ def get_attachments(entry) do
+ :xmerl_xpath.string('/entry/link[@rel="enclosure"]', entry)
+ |> Enum.map(fn (enclosure) ->
+ with href when not is_nil(href) <- string_from_xpath("/link/@href", enclosure),
+ type when not is_nil(type) <- string_from_xpath("/link/@type", enclosure) do
+ %{
+ "type" => "Attachment",
+ "url" => [%{
+ "type" => "Link",
+ "mediaType" => type,
+ "href" => href
+ }]
+ }
+ end
+ end)
+ |> Enum.filter(&(&1))
+ end
- [author] = :xmerl_xpath.string('/entry/author[1]', doc)
- {:ok, actor} = find_or_make_user(author)
+ def handle_note(entry, doc \\ nil) do
+ content_html = string_from_xpath("//content[1]", entry)
- context = string_from_xpath("/entry/ostatus:conversation[1]", doc) |> String.trim
- context = if String.length(context) > 0 do
- context
- else
- ActivityPub.generate_context_id
- end
+ [author] = :xmerl_xpath.string('//author[1]', doc)
+ {:ok, actor} = find_make_or_update_user(author)
+ inReplyTo = string_from_xpath("//thr:in-reply-to[1]/@ref", entry)
+
+ context = (string_from_xpath("//ostatus:conversation[1]", entry) || "") |> String.trim
+
+ attachments = get_attachments(entry)
+
+ context = with %{data: %{"context" => context}} <- Object.get_cached_by_ap_id(inReplyTo) do
+ context
+ else _e ->
+ if String.length(context) > 0 do
+ context
+ else
+ ActivityPub.generate_context_id
+ end
+ end
to = [
"https://www.w3.org/ns/activitystreams#Public"
]
- date = string_from_xpath("/entry/published", doc)
+ mentions = :xmerl_xpath.string('//link[@rel="mentioned" and @ostatus:object-type="http://activitystrea.ms/schema/1.0/person"]', entry)
+ |> Enum.map(fn(person) -> string_from_xpath("@href", person) end)
+
+ to = to ++ mentions
+
+ date = string_from_xpath("//published", entry)
+ id = string_from_xpath("//id", entry)
object = %{
+ "id" => id,
"type" => "Note",
"to" => to,
"content" => content_html,
"published" => date,
"context" => context,
- "actor" => actor.ap_id
+ "actor" => actor.ap_id,
+ "attachment" => attachments
}
- ActivityPub.create(to, actor, context, object, %{}, date)
- end
-
- def find_or_make(author, doc) do
- query = from user in User,
- where: user.local == false and fragment("? @> ?", user.info, ^%{ostatus_uri: author})
-
- user = Repo.one(query)
+ object = if inReplyTo do
+ Map.put(object, "inReplyTo", inReplyTo)
+ else
+ object
+ end
- if is_nil(user) do
- make_user(doc)
+ # TODO: Bail out sooner and use transaction.
+ if Object.get_by_ap_id(id) do
+ {:error, "duplicate activity"}
else
- {:ok, user}
+ ActivityPub.create(to, actor, context, object, %{}, date, false)
end
end
- def find_or_make_user(author_doc) do
- {:xmlObj, :string, uri } = :xmerl_xpath.string('string(/author[1]/uri)', author_doc)
+ def find_make_or_update_user(doc) do
+ uri = string_from_xpath("//author/uri[1]", doc)
+ with {:ok, user} <- find_or_make_user(uri) do
+ avatar = make_avatar_object(doc)
+ if user.avatar != avatar do
+ change = Ecto.Changeset.change(user, %{avatar: avatar})
+ Repo.update(change)
+ else
+ {:ok, user}
+ end
+ end
+ end
+ def find_or_make_user(uri) do
query = from user in User,
- where: user.local == false and fragment("? @> ?", user.info, ^%{ostatus_uri: to_string(uri)})
+ where: user.local == false and fragment("? @> ?", user.info, ^%{uri: uri})
user = Repo.one(query)
if is_nil(user) do
- make_user(author_doc)
+ make_user(uri)
else
{:ok, user}
end
end
- defp string_from_xpath(xpath, doc) do
- {:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc)
-
- res = res
- |> to_string
- |> String.trim
-
- if res == "", do: nil, else: res
- end
-
- def make_user(author_doc) do
- author = string_from_xpath("/author[1]/uri", author_doc)
- name = string_from_xpath("/author[1]/name", author_doc)
- preferredUsername = string_from_xpath("/author[1]/poco:preferredUsername", author_doc)
- displayName = string_from_xpath("/author[1]/poco:displayName", author_doc)
- avatar = make_avatar_object(author_doc)
-
- data = %{
- local: false,
- name: preferredUsername || name,
- nickname: displayName || name,
- ap_id: author,
- info: %{
- "ostatus_uri" => author,
- "host" => URI.parse(author).host,
- "system" => "ostatus"
- },
- avatar: avatar
- }
-
- Repo.insert(Ecto.Changeset.change(%User{}, data))
+ def make_user(uri) do
+ with {:ok, info} <- gather_user_info(uri) do
+ data = %{
+ local: false,
+ name: info["name"],
+ nickname: info["nickname"] <> "@" <> info["host"],
+ ap_id: info["uri"],
+ info: info,
+ avatar: info["avatar"]
+ }
+ # TODO: Make remote user changeset
+ # SHould enforce fqn nickname
+ Repo.insert(Ecto.Changeset.change(%User{}, data))
+ end
end
# TODO: Just takes the first one for now.
- defp make_avatar_object(author_doc) do
- href = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@href", author_doc)
- type = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@type", author_doc)
+ def make_avatar_object(author_doc) do
+ href = string_from_xpath("//author[1]/link[@rel=\"avatar\"]/@href", author_doc)
+ type = string_from_xpath("//author[1]/link[@rel=\"avatar\"]/@type", author_doc)
if href do
%{
nil
end
end
+
+ def gather_user_info(username) do
+ with {:ok, webfinger_data} <- WebFinger.finger(username),
+ {:ok, feed_data} <- Websub.gather_feed_data(webfinger_data["topic"]) do
+ {:ok, Map.merge(webfinger_data, feed_data) |> Map.put("fqn", username)}
+ else e ->
+ Logger.debug("Couldn't gather info for #{username}")
+ {:error, e}
+ end
+ end
end
projects / akkoma / blobdiff