2 files changed, 80 insertions, 16 deletions

diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 569ef5d14..32d38b276 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -80,6 +80,11 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     |> activities_to_statuses(%{for: user})
   end
 
+  def fetch_user_statuses(user, opts \\ %{}) do
+    ActivityPub.fetch_activities([], opts)
+    |> activities_to_statuses(%{for: user})
+  end
+
   def fetch_conversation(user, id) do
     query = from activity in Activity,
       where: fragment("? @> ?", activity.data, ^%{ statusnetConversationId: id}),
@@ -103,8 +108,8 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     end
   end
 
-  def follow(%User{} = follower, followed_id) do
-    with %User{} = followed <- Repo.get(User, followed_id),
+  def follow(%User{} = follower, params) do
+    with { :ok, %User{} = followed } <- get_user(params),
          { :ok, follower } <- User.follow(follower, followed),
          { :ok, activity } <- ActivityPub.insert(%{
            "type" => "Follow",
@@ -114,6 +119,8 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
          })
     do
       { :ok, follower, followed, activity }
+    else
+      err -> err
     end
   end
 
@@ -122,6 +129,8 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
          { :ok, follower } <- User.unfollow(follower, followed)
     do
       { :ok, follower, followed }
+    else
+      err -> err
     end
   end
 
@@ -252,12 +261,37 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
       {:ok, UserRepresenter.to_map(user)}
     else
       {:error, changeset} ->
-        errors = Ecto.Changeset.traverse_errors(changeset, fn {msg, opts} -> msg end)
-        |> Poison.encode!
+        errors = Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
+      |> Poison.encode!
         {:error, %{error: errors}}
     end
   end
 
+  def get_user(user \\ nil, params) do
+    case params do
+      %{ "user_id" => user_id } ->
+        case target = Repo.get(User, user_id) do
+          nil ->
+            {:error, "No user with such user_id"}
+          _ ->
+            {:ok, target}
+        end
+      %{ "screen_name" => nickname } ->
+        case target = Repo.get_by(User, nickname: nickname) do
+          nil ->
+            {:error, "No user with such screen_name"}
+          _ ->
+            {:ok, target}
+        end
+      _ ->
+        if user do
+          {:ok, user}
+        else
+          {:error, "You need to specify screen_name or user_id"}
+        end
+    end
+  end
+
   defp activities_to_statuses(activities, opts) do
     Enum.map(activities, fn(activity) ->
       activity_to_status(activity, opts)
diff --git a/lib/pleroma/web/twitter_api/twitter_api_controller.ex b/lib/pleroma/web/twitter_api/twitter_api_controller.ex
index b70af3b09..3d6487396 100644
--- a/lib/pleroma/web/twitter_api/twitter_api_controller.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api_controller.ex
@@ -45,22 +45,36 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     |> json_reply(200, json)
   end
 
-  def follow(%{assigns: %{user: user}} = conn, %{ "user_id" => followed_id }) do
-    { :ok, user, follower, _activity } = TwitterAPI.follow(user, followed_id)
-
-    response = follower |> UserRepresenter.to_json(%{for: user})
+  def user_timeline(%{assigns: %{user: user}} = conn, params) do
+    case TwitterAPI.get_user(user, params) do
+      {:ok, target_user} ->
+        params = Map.merge(params, %{"actor_id" => target_user.ap_id})
+        statuses  = TwitterAPI.fetch_user_statuses(user, params)
+        conn
+        |> json_reply(200, statuses |> Poison.encode!)
+      {:error, msg} ->
+        bad_request_reply(conn, msg)
+    end
+  end
 
-    conn
-    |> json_reply(200, response)
+  def follow(%{assigns: %{user: user}} = conn, params) do
+    case TwitterAPI.follow(user, params) do
+      { :ok, user, followed, _activity } ->
+        response = followed |> UserRepresenter.to_json(%{for: user})
+        conn
+        |> json_reply(200, response)
+      { :error, msg } -> forbidden_json_reply(conn, msg)
+    end
   end
 
   def unfollow(%{assigns: %{user: user}} = conn, params) do
-    { :ok, user, follower } = TwitterAPI.unfollow(user, params)
-
-    response = follower |> UserRepresenter.to_json(%{for: user})
-
-    conn
-    |> json_reply(200, response)
+    case TwitterAPI.unfollow(user, params) do
+      { :ok, user, unfollowed, } ->
+        response = unfollowed |> UserRepresenter.to_json(%{for: user})
+        conn
+        |> json_reply(200, response)
+      { :error, msg } -> forbidden_json_reply(conn, msg)
+    end
   end
 
   def fetch_status(%{assigns: %{user: user}} = conn, %{ "id" => id }) do
@@ -85,6 +99,10 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     |> send_resp(200, response)
   end
 
+  def help_test(conn, _params) do
+    conn |> json_reply(200, Poison.encode!("ok"))
+  end
+
   def upload_json(conn, %{"media" => media}) do
     response = TwitterAPI.upload(media, "json")
     conn
@@ -155,9 +173,21 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     |> json_reply(200, response)
   end
 
+  defp bad_request_reply(conn, error_message) do
+    json = Poison.encode!(%{"error" => error_message})
+    json_reply(conn, 400, json)
+  end
+
   defp json_reply(conn, status, json) do
     conn
     |> put_resp_content_type("application/json")
     |> send_resp(status, json)
   end
+
+  defp forbidden_json_reply(conn, error_message) do
+    json = %{"error" => error_message, "request" => conn.request_path}
+    |> Poison.encode!
+
+    json_reply(conn, 403, json)
+  end
 end