Merge branch 'develop' into 'docs/improve-mailer-settings-desc'

# Conflicts:
#   CHANGELOG.md

11 files changed, 149 insertions, 8 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15c75353f..378e0466e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,7 +18,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Deprecated `Pleroma.Uploaders.S3, :public_endpoint`. Now `Pleroma.Upload, :base_url` is the standard configuration key for all uploaders.
 - Improved Apache webserver support: updated sample configuration, MediaProxy cache invalidation verified with the included sample script
 - Improve OAuth 2.0 provider support. A missing `fqn` field was added to the response, but does not expose the user's email address.
-- Provide redirect of external posts from `/notice/:id` to their original URL.
+- Provide redirect of external posts from `/notice/:id` to their original URL
+- Admins no longer receive notifications for reports if they are the actor making the report.
 - Improved Mailer configuration setting descriptions for AdminFE.
 
 <details>
diff --git a/docs/administration/CLI_tasks/database.md b/docs/administration/CLI_tasks/database.md
index 6dca83167..c53c49921 100644
--- a/docs/administration/CLI_tasks/database.md
+++ b/docs/administration/CLI_tasks/database.md
@@ -141,3 +141,21 @@ but should only be run if necessary. **It is safe to cancel this.**
     ```sh
     mix pleroma.database ensure_expiration
     ```
+
+## Change Text Search Configuration
+
+Change `default_text_search_config` for database and (if necessary) text_search_config used in index, then rebuild index (it may take time). 
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl database set_text_search_config english
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.database set_text_search_config english
+    ```
+
+See [PostgreSQL documentation](https://www.postgresql.org/docs/current/textsearch-configuration.html) and `docs/configuration/howto_search_cjk.md` for more detail.
diff --git a/docs/configuration/howto_search_cjk.md b/docs/configuration/howto_search_cjk.md
new file mode 100644
index 000000000..d3ce28077
--- /dev/null
+++ b/docs/configuration/howto_search_cjk.md
@@ -0,0 +1,42 @@
+# How to enable text search for Chinese, Japanese and Korean
+
+Pleroma's full text search feature is powered by PostgreSQL's native [text search](https://www.postgresql.org/docs/current/textsearch.html), it works well out of box for most of languages, but needs extra configurations for some asian languages like Chinese, Japanese and Korean (CJK).
+
+
+## Setup and test the new search config
+
+In most cases, you would need an extension installed to support parsing CJK text. Here are a few extension you may choose from, or you are more than welcome to share additional ones you found working for you with the rest of Pleroma community.
+
+ * [a generic n-gram parser](https://github.com/huangjimmy/pg_cjk_parser) supports Simplifed/Traditional Chinese, Japanese, and Korean
+ * [a Korean parser](https://github.com/i0seph/textsearch_ko) based on mecab
+ * [a Japanese parser](https://www.amris.co.jp/tsja/index.html) based on mecab
+ * [zhparser](https://github.com/amutu/zhparser/) is a PostgreSQL extension base on the Simple Chinese Word Segmentation(SCWS)
+ * [another Chinese parser](https://github.com/jaiminpan/pg_jieba) based on Jieba Chinese Word Segmentation
+ 
+Once you have the new search config , make sure you test it with the `pleroma` user in PostgreSQL (change `YOUR.CONFIG` to your real configuration name)
+```
+SELECT ts_debug('YOUR.CONFIG', '安装和配置Nginx, ElixirとErlangをインストールします');
+```
+Check output of the query, and see if it matches your expectation.
+
+
+## Update text search config and index in database
+
+=== "OTP"
+
+    ```sh
+    ./bin/pleroma_ctl database set_text_search_config YOUR.CONFIG
+    ```
+
+=== "From Source"
+
+    ```sh
+    mix pleroma.database set_text_search_config YOUR.CONFIG
+    ```
+
+Note: index update may take a while.
+
+## Restart database connection
+Since some changes above will only apply with a new database connection, you will have to restart either Pleroma or PostgreSQL process, or use `pg_terminate_backend` SQL command without restarting either. 
+
+Now the search results of statuses should be much more friendly for your language of choice, the results for searching users and tags were not changed, as the default parsing/matching should work for most cases. 
diff --git a/installation/pleroma.vcl b/installation/pleroma.vcl
index 13dad784c..4752510ea 100644
--- a/installation/pleroma.vcl
+++ b/installation/pleroma.vcl
@@ -59,6 +59,13 @@ sub vcl_backend_response {
       set beresp.http.CR = beresp.http.content-range;
     }
 
+    # Bypass cache for large files
+    # 50000000 ~ 50MB
+    if (std.integer(beresp.http.content-length, 0) > 50000000) {
+       set beresp.uncacheable = true;
+       return(deliver);
+    }
+
     # Don't cache objects that require authentication
     if (beresp.http.Authorization && !beresp.http.Cache-Control ~ "public") {
       set beresp.uncacheable = true;
diff --git a/lib/mix/tasks/pleroma/database.ex b/lib/mix/tasks/pleroma/database.ex
index 6261910f0..2403ed581 100644
--- a/lib/mix/tasks/pleroma/database.ex
+++ b/lib/mix/tasks/pleroma/database.ex
@@ -167,4 +167,51 @@ defmodule Mix.Tasks.Pleroma.Database do
     end)
     |> Stream.run()
   end
+
+  def run(["set_text_search_config", tsconfig]) do
+    start_pleroma()
+    %{rows: [[tsc]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SHOW default_text_search_config;")
+    shell_info("Current default_text_search_config: #{tsc}")
+
+    %{rows: [[db]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SELECT current_database();")
+    shell_info("Update default_text_search_config: #{tsconfig}")
+
+    %{messages: msg} =
+      Ecto.Adapters.SQL.query!(
+        Pleroma.Repo,
+        "ALTER DATABASE #{db} SET default_text_search_config = '#{tsconfig}';"
+      )
+
+    # non-exist config will not raise excpetion but only give >0 messages
+    if length(msg) > 0 do
+      shell_info("Error: #{inspect(msg, pretty: true)}")
+    else
+      rum_enabled = Pleroma.Config.get([:database, :rum_enabled])
+      shell_info("Recreate index, RUM: #{rum_enabled}")
+
+      # Note SQL below needs to be kept up-to-date with latest GIN or RUM index definition in future
+      if rum_enabled do
+        Ecto.Adapters.SQL.query!(
+          Pleroma.Repo,
+          "CREATE OR REPLACE FUNCTION objects_fts_update() RETURNS trigger AS $$ BEGIN
+          new.fts_content := to_tsvector(new.data->>'content');
+          RETURN new;
+          END
+          $$ LANGUAGE plpgsql"
+        )
+
+        shell_info("Refresh RUM index")
+        Ecto.Adapters.SQL.query!(Pleroma.Repo, "UPDATE objects SET updated_at = NOW();")
+      else
+        Ecto.Adapters.SQL.query!(Pleroma.Repo, "DROP INDEX IF EXISTS objects_fts;")
+
+        Ecto.Adapters.SQL.query!(
+          Pleroma.Repo,
+          "CREATE INDEX objects_fts ON objects USING gin(to_tsvector('#{tsconfig}', data->>'content')); "
+        )
+      end
+
+      shell_info('Done.')
+    end
+  end
 end
diff --git a/lib/pleroma/activity/search.ex b/lib/pleroma/activity/search.ex
index 52e7c048d..ed898ba4f 100644
--- a/lib/pleroma/activity/search.ex
+++ b/lib/pleroma/activity/search.ex
@@ -64,7 +64,7 @@ defmodule Pleroma.Activity.Search do
     from([a, o] in q,
       where:
         fragment(
-          "to_tsvector('english', ?->>'content') @@ plainto_tsquery('english', ?)",
+          "to_tsvector(?->>'content') @@ plainto_tsquery(?)",
           o.data,
           ^search_query
         )
@@ -75,7 +75,7 @@ defmodule Pleroma.Activity.Search do
     from([a, o] in q,
       where:
         fragment(
-          "to_tsvector('english', ?->>'content') @@ websearch_to_tsquery('english', ?)",
+          "to_tsvector(?->>'content') @@ websearch_to_tsquery(?)",
           o.data,
           ^search_query
         )
@@ -86,7 +86,7 @@ defmodule Pleroma.Activity.Search do
     from([a, o] in q,
       where:
         fragment(
-          "? @@ plainto_tsquery('english', ?)",
+          "? @@ plainto_tsquery(?)",
           o.fts_content,
           ^search_query
         ),
@@ -98,7 +98,7 @@ defmodule Pleroma.Activity.Search do
     from([a, o] in q,
       where:
         fragment(
-          "? @@ websearch_to_tsquery('english', ?)",
+          "? @@ websearch_to_tsquery(?)",
           o.fts_content,
           ^search_query
         ),
diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index 55b513212..1970fbf65 100644
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -507,8 +507,8 @@ defmodule Pleroma.Notification do
     [object_id]
   end
 
-  def get_potential_receiver_ap_ids(%{data: %{"type" => "Flag"}}) do
-    User.all_superusers() |> Enum.map(fn user -> user.ap_id end)
+  def get_potential_receiver_ap_ids(%{data: %{"type" => "Flag", "actor" => actor}}) do
+    (User.all_superusers() |> Enum.map(fn user -> user.ap_id end)) -- [actor]
   end
 
   def get_potential_receiver_ap_ids(activity) do
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 1a84375fb..5b45e2ca1 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -377,6 +377,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          :ok <-
            maybe_federate(stripped_activity) do
       User.all_superusers()
+      |> Enum.filter(fn user -> user.ap_id != actor end)
       |> Enum.filter(fn user -> not is_nil(user.email) end)
       |> Enum.each(fn superuser ->
         superuser
diff --git a/priv/repo/migrations/20210121080964_add_default_text_search_config.exs b/priv/repo/migrations/20210121080964_add_default_text_search_config.exs
new file mode 100644
index 000000000..09b6cccc9
--- /dev/null
+++ b/priv/repo/migrations/20210121080964_add_default_text_search_config.exs
@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.AddDefaultTextSearchConfig do
+  use Ecto.Migration
+
+  def change do
+    execute("DO $$
+    BEGIN
+    execute 'ALTER DATABASE '||current_database()||' SET default_text_search_config = ''english'' ';
+    END
+    $$;")
+  end
+end
diff --git a/priv/repo/optional_migrations/rum_indexing/20190510135645_add_fts_index_to_objects_two.exs b/priv/repo/optional_migrations/rum_indexing/20190510135645_add_fts_index_to_objects_two.exs
index 82e02281d..88476fb57 100644
--- a/priv/repo/optional_migrations/rum_indexing/20190510135645_add_fts_index_to_objects_two.exs
+++ b/priv/repo/optional_migrations/rum_indexing/20190510135645_add_fts_index_to_objects_two.exs
@@ -17,7 +17,7 @@ defmodule Pleroma.Repo.Migrations.AddFtsIndexToObjectsTwo do
 
     execute("CREATE FUNCTION objects_fts_update() RETURNS trigger AS $$
     begin
-    new.fts_content := to_tsvector('english', new.data->>'content');
+    new.fts_content := to_tsvector(new.data->>'content');
     return new;
     end
     $$ LANGUAGE plpgsql")
diff --git a/test/pleroma/notification_test.exs b/test/pleroma/notification_test.exs
index 0c6ebfb76..948587292 100644
--- a/test/pleroma/notification_test.exs
+++ b/test/pleroma/notification_test.exs
@@ -45,6 +45,20 @@ defmodule Pleroma.NotificationTest do
       assert notification.type == "pleroma:report"
     end
 
+    test "suppresses notification to reporter if reporter is an admin" do
+      reporting_admin = insert(:user, is_admin: true)
+      reported_user = insert(:user)
+      other_admin = insert(:user, is_admin: true)
+
+      {:ok, activity} = CommonAPI.report(reporting_admin, %{account_id: reported_user.id})
+
+      {:ok, [notification]} = Notification.create_notifications(activity)
+
+      refute notification.user_id == reporting_admin.id
+      assert notification.user_id == other_admin.id
+      assert notification.type == "pleroma:report"
+    end
+
     test "creates a notification for an emoji reaction" do
       user = insert(:user)
       other_user = insert(:user)