defmodule Pleroma.Web.WebFinger do
- alias Pleroma.XmlBuilder
- alias Pleroma.User
- alias Pleroma.Web.OStatus
- alias Pleroma.Web.XML
+ @httpoison Application.get_env(:pleroma, :httpoison)
+
+ alias Pleroma.{Repo, User, XmlBuilder}
+ alias Pleroma.Web
+ alias Pleroma.Web.{XML, Salmon, OStatus}
+ require Poison
require Logger
- def host_meta() do
- base_url = Pleroma.Web.base_url
+ def host_meta do
+ base_url = Web.base_url
{
- :XRD, %{ xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0" },
+ :XRD, %{xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0"},
{
- :Link, %{ rel: "lrdd", type: "application/xrd+xml", template: "#{base_url}/.well-known/webfinger?resource={uri}" }
+ :Link, %{rel: "lrdd", type: "application/xrd+xml", template: "#{base_url}/.well-known/webfinger?resource={uri}"}
}
}
|> XmlBuilder.to_doc
end
- def webfinger(resource) do
- host = Pleroma.Web.host
- regex = ~r/acct:(?<username>\w+)@#{host}/
- case Regex.named_captures(regex, resource) do
- %{"username" => username} ->
- user = User.get_cached_by_nickname(username)
- {:ok, represent_user(user)}
- _ -> nil
+ def webfinger(resource, "JSON") do
+ host = Pleroma.Web.Endpoint.host
+ regex = ~r/(acct:)?(?<username>\w+)@#{host}/
+ with %{"username" => username} <- Regex.named_captures(regex, resource) do
+ user = User.get_by_nickname(username)
+ {:ok, represent_user(user, "JSON")}
+ else _e ->
+ with user when not is_nil(user) <- User.get_cached_by_ap_id(resource) do
+ {:ok, represent_user(user, "JSON")}
+ else _e ->
+ {:error, "Couldn't find user"}
+ end
+ end
+ end
+
+ def webfinger(resource, "XML") do
+ host = Pleroma.Web.Endpoint.host
+ regex = ~r/(acct:)?(?<username>\w+)@#{host}/
+ with %{"username" => username} <- Regex.named_captures(regex, resource) do
+ user = User.get_by_nickname(username)
+ {:ok, represent_user(user, "XML")}
+ else _e ->
+ with user when not is_nil(user) <- User.get_cached_by_ap_id(resource) do
+ {:ok, represent_user(user, "XML")}
+ else _e ->
+ {:error, "Couldn't find user"}
+ end
end
end
- def represent_user(user) do
+ def represent_user(user, "JSON") do
+ {:ok, user} = ensure_keys_present(user)
+ {:ok, _private, public} = Salmon.keys_from_pem(user.info["keys"])
+ magic_key = Salmon.encode_key(public)
+ %{
+ "subject" => "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host}",
+ "aliases" => [user.ap_id],
+ "links" => [
+ %{"rel" => "http://schemas.google.com/g/2010#updates-from", "type" => "application/atom+xml", "href" => OStatus.feed_path(user)},
+ %{"rel" => "http://webfinger.net/rel/profile-page", "type" => "text/html", "href" => user.ap_id},
+ %{"rel" => "salmon", "href" => OStatus.salmon_path(user)},
+ %{"rel" => "magic-public-key", "href" => "data:application/magic-public-key,#{magic_key}"},
+ %{"rel" => "self", "type" => "application/activity+json", "href" => user.ap_id},
+ %{"rel" => "http://ostatus.org/schema/1.0/subscribe", "template" => OStatus.remote_follow_path()}
+ ]
+ }
+ end
+
+ def represent_user(user, "XML") do
+ {:ok, user} = ensure_keys_present(user)
+ {:ok, _private, public} = Salmon.keys_from_pem(user.info["keys"])
+ magic_key = Salmon.encode_key(public)
{
:XRD, %{xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0"},
[
- {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.host}"},
+ {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host}"},
{:Alias, user.ap_id},
{:Link, %{rel: "http://schemas.google.com/g/2010#updates-from", type: "application/atom+xml", href: OStatus.feed_path(user)}},
- {:Link, %{rel: "salmon", href: OStatus.salmon_path(user)}}
+ {:Link, %{rel: "http://webfinger.net/rel/profile-page", type: "text/html", href: user.ap_id}},
+ {:Link, %{rel: "salmon", href: OStatus.salmon_path(user)}},
+ {:Link, %{rel: "magic-public-key", href: "data:application/magic-public-key,#{magic_key}"}},
+ {:Link, %{rel: "self", type: "application/activity+json", href: user.ap_id}},
+ {:Link, %{rel: "http://ostatus.org/schema/1.0/subscribe", template: OStatus.remote_follow_path()}}
]
}
|> XmlBuilder.to_doc
end
- # FIXME: Make this call the host-meta to find the actual address.
- defp webfinger_address(domain) do
- "https://#{domain}/.well-known/webfinger"
+ # This seems a better fit in Salmon
+ def ensure_keys_present(user) do
+ info = user.info || %{}
+ if info["keys"] do
+ {:ok, user}
+ else
+ {:ok, pem} = Salmon.generate_rsa_pem
+ info = Map.put(info, "keys", pem)
+ Ecto.Changeset.change(user, info: info)
+ |> User.update_and_set_cache()
+ end
end
defp webfinger_from_xml(doc) do
topic = XML.string_from_xpath(~s{//Link[@rel="http://schemas.google.com/g/2010#updates-from"]/@href}, doc)
subject = XML.string_from_xpath("//Subject", doc)
salmon = XML.string_from_xpath(~s{//Link[@rel="salmon"]/@href}, doc)
+ subscribe_address = XML.string_from_xpath(~s{//Link[@rel="http://ostatus.org/schema/1.0/subscribe"]/@template}, doc)
+ ap_id = XML.string_from_xpath(~s{//Link[@rel="self" and @type="application/activity+json"]/@href}, doc)
data = %{
- magic_key: magic_key,
- topic: topic,
- subject: subject,
- salmon: salmon
+ "magic_key" => magic_key,
+ "topic" => topic,
+ "subject" => subject,
+ "salmon" => salmon,
+ "subscribe_address" => subscribe_address,
+ "ap_id" => ap_id
}
{:ok, data}
end
- def finger(account, getter \\ &HTTPoison.get/3) do
- [name, domain] = String.split(account, "@")
- address = webfinger_address(domain)
- with {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- getter.(address, ["Accept": "application/xrd+xml"], [params: [resource: account]]),
- doc <- XML.parse_document(body),
- {:ok, data} <- webfinger_from_xml(doc) do
- {:ok, data}
+ # TODO: maybe fill in other details from JRD webfinger response
+ defp webfinger_from_json(doc) do
+ data = Enum.reduce(doc["links"], %{"subject" => doc["subject"]}, fn (link, data) ->
+ case link["type"] do
+ "application/activity+json" ->
+ Map.put(data, "ap_id", link["href"])
+ _ ->
+ Logger.debug("Unhandled type: #{inspect(link["type"])}")
+ end
+ end)
+ {:ok, data}
+ end
+
+ def get_template_from_xml(body) do
+ xpath = "//Link[@rel='lrdd' and @type='application/xrd+xml']/@template"
+ with doc when doc != :error <- XML.parse_document(body),
+ template when template != nil <- XML.string_from_xpath(xpath, doc) do
+ {:ok, template}
+ end
+ end
+
+ def find_lrdd_template(domain) do
+ with {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- @httpoison.get("http://#{domain}/.well-known/host-meta", [], follow_redirect: true) do
+ get_template_from_xml(body)
+ else
+ _ ->
+ with {:ok, %{body: body}} <- @httpoison.get("https://#{domain}/.well-known/host-meta", []) do
+ get_template_from_xml(body)
+ else
+ e -> {:error, "Can't find LRDD template: #{inspect(e)}"}
+ end
+ end
+ end
+
+ def finger(account) do
+ account = String.trim_leading(account, "@")
+ domain = with [_name, domain] <- String.split(account, "@") do
+ domain
+ else _e ->
+ URI.parse(account).host
+ end
+
+ case find_lrdd_template(domain) do
+ {:ok, template} ->
+ address = String.replace(template, "{uri}", URI.encode(account))
+ _ ->
+ address = "http://#{domain}/.well-known/webfinger?resource=acct:#{account}"
+ end
+
+ with response <- @httpoison.get(address, ["Accept": "application/xrd+xml,application/jrd+json"], follow_redirect: true),
+ {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- response do
+ doc = XML.parse_document(body)
+ if doc != :error do
+ webfinger_from_xml(doc)
+ else
+ {:ok, doc} = Poison.decode(body)
+ webfinger_from_json(doc)
+ end
else
e ->
- Logger.debug("Couldn't finger #{account}.")
- Logger.debug(e)
+ Logger.debug(fn -> "Couldn't finger #{account}" end)
+ Logger.debug(fn -> inspect(e) end)
{:error, e}
end
end
projects / akkoma / blobdiff