defmodule Pleroma.Web.Salmon do
use Bitwise
+ alias Pleroma.Web.XML
+ alias Pleroma.Web.OStatus.ActivityRepresenter
+ alias Pleroma.User
+ require Logger
def decode(salmon) do
- {doc, _rest} = :xmerl_scan.string(to_charlist(salmon))
+ doc = XML.parse_document(salmon)
{:xmlObj, :string, data} = :xmerl_xpath.string('string(//me:data[1])', doc)
{:xmlObj, :string, sig} = :xmerl_xpath.string('string(//me:sig[1])', doc)
end
def fetch_magic_key(salmon) do
- [data, _, _, _, _] = decode(salmon)
- {doc, _rest} = :xmerl_scan.string(to_charlist(data))
- {:xmlObj, :string, uri} = :xmerl_xpath.string('string(//author[1]/uri)', doc)
-
- uri = to_string(uri)
- base = URI.parse(uri).host
-
- # TODO: Find out if this endpoint is mandated by the standard.
- {:ok, response} = HTTPoison.get(base <> "/.well-known/webfinger", ["Accept": "application/xrd+xml"], [params: [resource: uri]])
-
- {doc, _rest} = :xmerl_scan.string(to_charlist(response.body))
-
- {:xmlObj, :string, magickey} = :xmerl_xpath.string('string(//Link[@rel="magic-public-key"]/@href)', doc)
- "data:application/magic-public-key," <> magickey = to_string(magickey)
-
- magickey
+ with [data, _, _, _, _] <- decode(salmon),
+ doc <- XML.parse_document(data),
+ uri when not is_nil(uri) <- XML.string_from_xpath("/entry/author[1]/uri", doc),
+ {:ok, %{info: %{"magic_key" => magic_key}}} <- Pleroma.Web.OStatus.find_or_make_user(uri) do
+ {:ok, magic_key}
+ end
end
def decode_and_validate(magickey, salmon) do
{:ok, salmon}
end
+
+ def remote_users(%{data: %{"to" => to}}) do
+ to
+ |> Enum.map(fn(id) -> User.get_cached_by_ap_id(id) end)
+ |> Enum.filter(fn(user) -> user && !user.local end)
+ end
+
+ defp send_to_user(%{info: %{"salmon" => salmon}}, feed, poster) do
+ poster.(salmon, feed, [{"Content-Type", "application/magic-envelope+xml"}])
+ end
+
+ defp send_to_user(_,_,_), do: nil
+
+ def publish(user, activity, poster \\ &HTTPoison.post/3)
+ def publish(%{info: %{"keys" => keys}} = user, activity, poster) do
+ feed = ActivityRepresenter.to_simple_form(activity, user, true)
+ |> ActivityRepresenter.wrap_with_entry
+ |> :xmerl.export_simple(:xmerl_xml)
+ |> to_string
+
+ if feed do
+ {:ok, private, _} = keys_from_pem(keys)
+ {:ok, feed} = encode(private, feed)
+
+ remote_users(activity)
+ |> Enum.each(fn(remote_user) ->
+ Logger.debug("sending salmon to #{remote_user.ap_id}")
+ send_to_user(remote_user, feed, poster)
+ end)
+ end
+ end
+
+ def publish(%{id: id}, _, _), do: Logger.debug("Keys missing for user #{id}")
end