Merge branch 'feature/twitterapi-unrepeat' into 'develop'

[akkoma] / lib / pleroma / web / oauth / oauth_controller.ex

diff --git a/lib/pleroma/web/oauth/oauth_controller.ex b/lib/pleroma/web/oauth/oauth_controller.ex
index 94318bfa91e604307431d160c5ccb62666c80bf8..a5fb32a4e774752c27537598f135470e71d59482 100644 (file)
--- a/lib/pleroma/web/oauth/oauth_controller.ex
+++ b/lib/pleroma/web/oauth/oauth_controller.ex
@@ -5,38 +5,49 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   alias Pleroma.{Repo, User}
   alias Comeonin.Pbkdf2
 
-  plug :fetch_session
-  plug :fetch_flash
+  plug(:fetch_session)
+  plug(:fetch_flash)
 
-  action_fallback Pleroma.Web.OAuth.FallbackController
+  action_fallback(Pleroma.Web.OAuth.FallbackController)
 
   def authorize(conn, params) do
-    render conn, "show.html", %{
+    render(conn, "show.html", %{
       response_type: params["response_type"],
       client_id: params["client_id"],
       scope: params["scope"],
       redirect_uri: params["redirect_uri"],
       state: params["state"]
-    }
+    })
   end
 
-  def create_authorization(conn, %{"authorization" => %{"name" => name, "password" => password, "client_id" => client_id, "redirect_uri" => redirect_uri} = params}) do
-    with %User{} = user <- User.get_cached_by_nickname(name),
+  def create_authorization(conn, %{
+        "authorization" =>
+          %{
+            "name" => name,
+            "password" => password,
+            "client_id" => client_id,
+            "redirect_uri" => redirect_uri
+          } = params
+      }) do
+    with %User{} = user <- User.get_by_nickname_or_email(name),
          true <- Pbkdf2.checkpw(password, user.password_hash),
          %App{} = app <- Repo.get_by(App, client_id: client_id),
          {:ok, auth} <- Authorization.create_authorization(app, user) do
       if redirect_uri == "urn:ietf:wg:oauth:2.0:oob" do
-        render conn, "results.html", %{
+        render(conn, "results.html", %{
           auth: auth
-        }
+        })
       else
         connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
         url = "#{redirect_uri}#{connector}code=#{auth.token}"
-        url = if params["state"] do
-          url <> "&state=#{params["state"]}"
-        else
-          url
-        end
+
+        url =
+          if params["state"] do
+            url <> "&state=#{params["state"]}"
+          else
+            url
+          end
+
         redirect(conn, external: url)
       end
     end
@@ -45,9 +56,10 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   # TODO
   # - proper scope handling
   def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
-    with %App{} = app <- Repo.get_by(App, client_id: params["client_id"], client_secret: params["client_secret"]),
+    with %App{} = app <- get_app_from_request(conn, params),
          fixed_token = fix_padding(params["code"]),
-         %Authorization{} = auth <- Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
+         %Authorization{} = auth <-
+           Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
          {:ok, token} <- Token.exchange_token(app, auth) do
       response = %{
         token_type: "Bearer",
@@ -56,15 +68,81 @@ defmodule Pleroma.Web.OAuth.OAuthController do
         expires_in: 60 * 10,
         scope: "read write follow"
       }
+
       json(conn, response)
     else
-      _error -> json(conn, %{error: "Invalid credentials"})
+      _error ->
+        put_status(conn, 400)
+        |> json(%{error: "Invalid credentials"})
     end
   end
 
+  # TODO
+  # - investigate a way to verify the user wants to grant read/write/follow once scope handling is done
+  def token_exchange(
+        conn,
+        %{"grant_type" => "password", "username" => name, "password" => password} = params
+      ) do
+    with %App{} = app <- get_app_from_request(conn, params),
+         %User{} = user <- User.get_by_nickname_or_email(name),
+         true <- Pbkdf2.checkpw(password, user.password_hash),
+         {:ok, auth} <- Authorization.create_authorization(app, user),
+         {:ok, token} <- Token.exchange_token(app, auth) do
+      response = %{
+        token_type: "Bearer",
+        access_token: token.token,
+        refresh_token: token.refresh_token,
+        expires_in: 60 * 10,
+        scope: "read write follow"
+      }
+
+      json(conn, response)
+    else
+      _error ->
+        put_status(conn, 400)
+        |> json(%{error: "Invalid credentials"})
+    end
+  end
+
+  def token_exchange(
+        conn,
+        %{"grant_type" => "password", "name" => name, "password" => password} = params
+      ) do
+    params =
+      params
+      |> Map.delete("name")
+      |> Map.put("username", name)
+
+    token_exchange(conn, params)
+  end
+
   defp fix_padding(token) do
     token
     |> Base.url_decode64!(padding: false)
-    |> Base.url_encode64
+    |> Base.url_encode64()
+  end
+
+  defp get_app_from_request(conn, params) do
+    # Per RFC 6749, HTTP Basic is preferred to body params
+    {client_id, client_secret} =
+      with ["Basic " <> encoded] <- get_req_header(conn, "authorization"),
+           {:ok, decoded} <- Base.decode64(encoded),
+           [id, secret] <-
+             String.split(decoded, ":")
+             |> Enum.map(fn s -> URI.decode_www_form(s) end) do
+        {id, secret}
+      else
+        _ -> {params["client_id"], params["client_secret"]}
+      end
+
+    if client_id && client_secret do
+      Repo.get_by(
+        App,
+        client_id: client_id,
+        client_secret: client_secret
+      )
+    else
+      nil
+    end
   end
 end