+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.WebFinger do
@httpoison Application.get_env(:pleroma, :httpoison)
- alias Pleroma.{Repo, User, XmlBuilder}
+ alias Pleroma.{User, XmlBuilder}
alias Pleroma.Web
alias Pleroma.Web.{XML, Salmon, OStatus}
- require Poison
+ require Jason
require Logger
def host_meta do
- base_url = Web.base_url
+ 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, "JSON") do
- host = Pleroma.Web.Endpoint.host
+ def webfinger(resource, fmt) when fmt in ["XML", "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
+ with %{"username" => username} <- Regex.named_captures(regex, resource),
+ %User{} = user <- User.get_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, "JSON") do
{:ok, user} = ensure_keys_present(user)
- {:ok, _private, public} = Salmon.keys_from_pem(user.info["keys"])
+ {:ok, _private, public} = Salmon.keys_from_pem(user.info.keys)
magic_key = Salmon.encode_key(public)
+
%{
- "subject" => "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host}",
+ "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" => "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" => "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()}
+ %{
+ "rel" => "self",
+ "type" => "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"",
+ "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"])
+ {: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"},
+ :XRD,
+ %{xmlns: "http://docs.oasis-open.org/ns/xri/xrd-1.0"},
[
- {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.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: "http://webfinger.net/rel/profile-page", type: "text/html", href: user.ap_id}},
+ {:Link,
+ %{
+ rel: "http://schemas.google.com/g/2010#updates-from",
+ type: "application/atom+xml",
+ href: OStatus.feed_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: "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()}}
+ {:Link,
+ %{rel: "http://ostatus.org/schema/1.0/subscribe", template: OStatus.remote_follow_path()}}
]
}
- |> XmlBuilder.to_doc
+ |> XmlBuilder.to_doc()
end
# This seems a better fit in Salmon
def ensure_keys_present(user) do
- info = user.info || %{}
- if info["keys"] 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()
+ {:ok, pem} = Salmon.generate_rsa_pem()
+
+ info_cng =
+ info
+ |> Pleroma.User.Info.set_keys(pem)
+
+ cng =
+ Ecto.Changeset.change(user)
+ |> Ecto.Changeset.put_embed(:info, info_cng)
+
+ User.update_and_set_cache(cng)
end
end
- defp webfinger_from_xml(doc) do
- magic_key = XML.string_from_xpath(~s{//Link[@rel="magic-public-key"]/@href}, doc)
+ defp get_magic_key(magic_key) do
"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)
- 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,
- "subscribe_address" => subscribe_address,
- "ap_id" => ap_id
- }
- {:ok, data}
+ {:ok, magic_key}
+ rescue
+ MatchError -> {:error, "Missing magic key data."}
+ end
+
+ 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
+ {:error, e} ->
+ {:error, e}
+
+ e ->
+ {:error, e}
+ end
end
- # 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)
+ 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)
+
{:ok, data}
end
def get_template_from_xml(body) do
- xpath = "//Link[@rel='lrdd' and @type='application/xrd+xml']/@template"
+ 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
+ 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
+ with {:ok, %{status: status, body: body}} when status in 200..299 <-
+ @httpoison.get("http://#{domain}/.well-known/host-meta", []) do
get_template_from_xml(body)
else
_ ->
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
+ 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 <-
+ @httpoison.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(fn -> "Couldn't finger #{account}" end)
projects / akkoma / blobdiff