defmodule Pleroma.Web.WebFinger do
+ @httpoison Application.get_env(:pleroma, :httpoison)
alias Pleroma.{Repo, User, XmlBuilder}
alias Pleroma.Web
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_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
{:ok, data}
end
- def finger(account, getter \\ &HTTPoison.get/3) do
+ 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
+ e ->
+ 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
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], follow_redirect: true])
- end
- with {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- response,
- doc <- XML.parse_document(body),
+ with {:ok, template} <- find_lrdd_template(domain),
+ address <- String.replace(template, "{uri}", URI.encode(account)),
+ response <- @httpoison.get(address, ["Accept": "application/xrd+xml"]),
+ {:ok, %{status_code: status_code, body: body}} when status_code in 200..299 <- response,
+ doc when doc != :error<- XML.parse_document(body),
{:ok, data} <- webfinger_from_xml(doc) do
{:ok, data}
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