From d3ec09bb380bb990bea6edc5dae6bbda7f2322c5 Mon Sep 17 00:00:00 2001
From: Maksim Pechnikov <parallel588@gmail.com>
Date: Thu, 13 Dec 2018 15:13:02 +0300
Subject: [PATCH 1/2] fix tags

---
 .../web/mastodon_api/views/status_view.ex     | 21 ++++++++++++++++++-
 test/web/mastodon_api/status_view_test.exs    | 17 ++++++++++++++-
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index c3c735d5d..f2a47f594 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -140,7 +140,7 @@ def render("status.json", %{activity: %{data: %{"object" => object}} = activity}
       visibility: get_visibility(object),
       media_attachments: attachments |> Enum.take(4),
       mentions: mentions,
-      tags: tags,
+      tags: build_tags(tags),
       application: %{
         name: "Web",
         website: nil
@@ -234,6 +234,25 @@ def render_content(%{"type" => object_type} = object)
 
   def render_content(object), do: object["content"] || ""
 
+  @doc """
+  Builds a dictionary tags.
+
+  ## Examples
+
+  iex> Pleroma.Web.MastodonAPI.StatusView.build_tags(["fediverse", "nextcloud"])
+  [{"name": "fediverse", "url": "/tag/fediverse"},
+   {"name": "nextcloud", "url": "/tag/nextcloud"}]
+
+  """
+  @spec build_tags(list(String.t())) :: list(map())
+  def build_tags(object_tags) when is_list(object_tags) do
+    Enum.reduce(object_tags, [], fn tag, tags ->
+      tags ++ [%{name: tag, url: "/tag/#{tag}"}]
+    end)
+  end
+
+  def build_tags(_), do: []
+
   @doc """
   Builds list emojis.
 
diff --git a/test/web/mastodon_api/status_view_test.exs b/test/web/mastodon_api/status_view_test.exs
index d10d59d6c..4f9805c78 100644
--- a/test/web/mastodon_api/status_view_test.exs
+++ b/test/web/mastodon_api/status_view_test.exs
@@ -62,7 +62,12 @@ test "a note activity" do
       visibility: "public",
       media_attachments: [],
       mentions: [],
-      tags: note.data["object"]["tag"],
+      tags: [
+        %{
+          name: "#{note.data["object"]["tag"]}",
+          url: "/tag/#{note.data["object"]["tag"]}"
+        }
+      ],
       application: %{
         name: "Web",
         website: nil
@@ -151,4 +156,14 @@ test "a reblog" do
     assert represented[:reblog][:id] == to_string(activity.id)
     assert represented[:emojis] == []
   end
+
+  describe "build_tags/1" do
+    test "it returns a a dictionary tags" do
+      assert StatusView.build_tags(["fediverse", "mastodon", "nextcloud"]) == [
+               %{name: "fediverse", url: "/tag/fediverse"},
+               %{name: "mastodon", url: "/tag/mastodon"},
+               %{name: "nextcloud", url: "/tag/nextcloud"}
+             ]
+    end
+  end
 end

From ea72ac549b2ac52623462d6862154fb6f800c01c Mon Sep 17 00:00:00 2001
From: Maksim Pechnikov <parallel588@gmail.com>
Date: Fri, 14 Dec 2018 22:56:37 +0300
Subject: [PATCH 2/2] fix case when tags is invalid

---
 lib/pleroma/web/mastodon_api/views/status_view.ex |  4 +++-
 test/web/mastodon_api/status_view_test.exs        | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index f2a47f594..46c559e3a 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -244,8 +244,10 @@ def render_content(object), do: object["content"] || ""
    {"name": "nextcloud", "url": "/tag/nextcloud"}]
 
   """
-  @spec build_tags(list(String.t())) :: list(map())
+  @spec build_tags(list(any())) :: list(map())
   def build_tags(object_tags) when is_list(object_tags) do
+    object_tags = for tag when is_binary(tag) <- object_tags, do: tag
+
     Enum.reduce(object_tags, [], fn tag, tags ->
       tags ++ [%{name: tag, url: "/tag/#{tag}"}]
     end)
diff --git a/test/web/mastodon_api/status_view_test.exs b/test/web/mastodon_api/status_view_test.exs
index 4f9805c78..b7ac92760 100644
--- a/test/web/mastodon_api/status_view_test.exs
+++ b/test/web/mastodon_api/status_view_test.exs
@@ -159,7 +159,18 @@ test "a reblog" do
 
   describe "build_tags/1" do
     test "it returns a a dictionary tags" do
-      assert StatusView.build_tags(["fediverse", "mastodon", "nextcloud"]) == [
+      object_tags = [
+        "fediverse",
+        "mastodon",
+        "nextcloud",
+        %{
+          "href" => "https://kawen.space/users/lain",
+          "name" => "@lain@kawen.space",
+          "type" => "Mention"
+        }
+      ]
+
+      assert StatusView.build_tags(object_tags) == [
                %{name: "fediverse", url: "/tag/fediverse"},
                %{name: "mastodon", url: "/tag/mastodon"},
                %{name: "nextcloud", url: "/tag/nextcloud"}