- 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),
+ 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
+
+ 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),