X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fpleroma%2Fweb%2Fweb_finger%2Fweb_finger.ex;h=3fca72de84f9806eddf5547638a2503a46390fc1;hb=9bec891eb4d5d06e6bd84dd2c95259d2c1a4f563;hp=217b09dc5009c8d2075b5968b7c82271db689195;hpb=76e653b0d80279491a4b57278aec7a83efa003d0;p=akkoma
diff --git a/lib/pleroma/web/web_finger/web_finger.ex b/lib/pleroma/web/web_finger/web_finger.ex
index 217b09dc5..3fca72de8 100644
--- a/lib/pleroma/web/web_finger/web_finger.ex
+++ b/lib/pleroma/web/web_finger/web_finger.ex
@@ -1,108 +1,233 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.WebFinger do
+ alias Pleroma.HTTP
+ alias Pleroma.User
+ alias Pleroma.Web
+ alias Pleroma.Web.Federator.Publisher
+ alias Pleroma.Web.XML
alias Pleroma.XmlBuilder
- alias Pleroma.{Repo, User}
- alias Pleroma.Web.{XML, Salmon, OStatus}
+ require Jason
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
+ |> XmlBuilder.to_doc()
end
- def webfinger(resource) do
- host = Pleroma.Web.host
+ def webfinger(resource, fmt) when fmt in ["XML", "JSON"] do
+ host = Pleroma.Web.Endpoint.host()
regex = ~r/(acct:)?(?\w+)@#{host}/
- with %{"username" => username} <- Regex.named_captures(regex, resource) do
- user = User.get_by_nickname(username)
- {:ok, represent_user(user)}
- else _e ->
- with user when not is_nil(user) <- User.get_cached_by_ap_id(resource) do
- {:ok, represent_user(user)}
- else _e ->
- {:error, "Couldn't find user"}
- end
+
+ with %{"username" => username} <- Regex.named_captures(regex, resource),
+ %User{} = user <- User.get_cached_by_nickname(username) do
+ {:ok, represent_user(user, fmt)}
+ else
+ _e ->
+ with %User{} = user <- User.get_cached_by_ap_id(resource) do
+ {:ok, represent_user(user, fmt)}
+ else
+ _e ->
+ {:error, "Couldn't find user"}
+ end
end
end
- def represent_user(user) do
- {:ok, user} = ensure_keys_present(user)
- {:ok, _private, public} = Salmon.keys_from_pem(user.info["keys"])
- magic_key = Salmon.encode_key(public)
+ defp gather_links(%User{} = user) do
+ [
+ %{
+ "rel" => "http://webfinger.net/rel/profile-page",
+ "type" => "text/html",
+ "href" => user.ap_id
+ }
+ ] ++ Publisher.gather_webfinger_links(user)
+ end
+
+ def represent_user(user, "JSON") do
+ {:ok, user} = User.ensure_keys_present(user)
+
+ %{
+ "subject" => "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host()}",
+ "aliases" => [user.ap_id],
+ "links" => gather_links(user)
+ }
+ end
+
+ def represent_user(user, "XML") do
+ {:ok, user} = User.ensure_keys_present(user)
+
+ links =
+ gather_links(user)
+ |> Enum.map(fn link -> {:Link, link} end)
+
{
- :XRD, %{xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0"},
+ :XRD,
+ %{xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0"},
[
- {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.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: "ttp://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}"}}
- ]
+ {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host()}"},
+ {:Alias, user.ap_id}
+ ] ++ links
}
- |> XmlBuilder.to_doc
+ |> XmlBuilder.to_doc()
+ end
+
+ defp get_magic_key(magic_key) do
+ "data:application/magic-public-key," <> magic_key = magic_key
+ {:ok, magic_key}
+ rescue
+ MatchError -> {:error, "Missing magic key data."}
end
- # This seems a better fit in Salmon
- def ensure_keys_present(user) do
- info = user.info || %{}
- if info["keys"] do
- {:ok, user}
+ defp webfinger_from_xml(doc) do
+ with magic_key <- XML.string_from_xpath(~s{//Link[@rel="magic-public-key"]/@href}, doc),
+ {:ok, magic_key} <- get_magic_key(magic_key),
+ 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
+ ) do
+ data = %{
+ "magic_key" => magic_key,
+ "topic" => topic,
+ "subject" => subject,
+ "salmon" => salmon,
+ "subscribe_address" => subscribe_address,
+ "ap_id" => ap_id
+ }
+
+ {:ok, data}
else
- {:ok, pem} = Salmon.generate_rsa_pem
- info = Map.put(info, "keys", pem)
- Repo.update(Ecto.Changeset.change(user, info: info))
+ {:error, e} ->
+ {:error, e}
+
+ e ->
+ {:error, e}
end
end
- # FIXME: Make this call the host-meta to find the actual address.
- defp webfinger_address(domain) do
- "//#{domain}/.well-known/webfinger"
- end
+ defp webfinger_from_json(doc) do
+ data =
+ Enum.reduce(doc["links"], %{"subject" => doc["subject"]}, fn link, data ->
+ case {link["type"], link["rel"]} do
+ {"application/activity+json", "self"} ->
+ Map.put(data, "ap_id", link["href"])
+
+ {"application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"", "self"} ->
+ Map.put(data, "ap_id", link["href"])
+
+ {_, "magic-public-key"} ->
+ "data:application/magic-public-key," <> magic_key = link["href"]
+ Map.put(data, "magic_key", magic_key)
+
+ {"application/atom+xml", "http://schemas.google.com/g/2010#updates-from"} ->
+ Map.put(data, "topic", link["href"])
+
+ {_, "salmon"} ->
+ Map.put(data, "salmon", link["href"])
+
+ {_, "http://ostatus.org/schema/1.0/subscribe"} ->
+ Map.put(data, "subscribe_address", link["template"])
+
+ _ ->
+ Logger.debug("Unhandled type: #{inspect(link["type"])}")
+ data
+ end
+ end)
- defp webfinger_from_xml(doc) do
- magic_key = XML.string_from_xpath(~s{//Link[@rel="magic-public-key"]/@href}, doc)
- "data:application/magic-public-key," <> magic_key = magic_key
- 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)
- data = %{
- magic_key: magic_key,
- topic: topic,
- subject: subject,
- salmon: salmon
- }
{:ok, data}
end
- def finger(account, getter \\ &HTTPoison.get/3) do
- domain = with [_name, domain] <- String.split(account, "@") do
- domain
- else _e ->
- URI.parse(account).host
- end
- address = webfinger_address(domain)
-
- # try https first
- response = with {:ok, result} <- getter.("https:" <> address, ["Accept": "application/xrd+xml"], [params: [resource: account]]) do
- {:ok, result}
- else _ ->
- getter.("http:" <> address, ["Accept": "application/xrd+xml"], [params: [resource: account]])
- end
-
- with {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- response,
- doc <- XML.parse_document(body),
- {:ok, data} <- webfinger_from_xml(doc) do
- {:ok, data}
+ def get_template_from_xml(body) do
+ xpath = "//Link[@rel='lrdd']/@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: status, body: body}} when status in 200..299 <-
+ HTTP.get("http://#{domain}/.well-known/host-meta", []) do
+ get_template_from_xml(body)
+ else
+ _ ->
+ with {:ok, %{body: body}} <- HTTP.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
+
+ address =
+ case find_lrdd_template(domain) do
+ {:ok, template} ->
+ String.replace(template, "{uri}", URI.encode(account))
+
+ _ ->
+ "https://#{domain}/.well-known/webfinger?resource=acct:#{account}"
+ end
+
+ with response <-
+ HTTP.get(
+ address,
+ Accept: "application/xrd+xml,application/jrd+json"
+ ),
+ {:ok, %{status: status, body: body}} when status in 200..299 <- response do
+ doc = XML.parse_document(body)
+
+ if doc != :error do
+ webfinger_from_xml(doc)
+ else
+ with {:ok, doc} <- Jason.decode(body) do
+ webfinger_from_json(doc)
+ else
+ {:error, e} -> e
+ end
+ end
else
e ->
- Logger.debug("Couldn't finger #{account}.")
- Logger.debug(inspect(e))
+ Logger.debug(fn -> "Couldn't finger #{account}" end)
+ Logger.debug(fn -> inspect(e) end)
{:error, e}
end
end