Add user show endpoint for Pleroma admin API

docs/Admin-API.md

@@ -149,6 +149,17 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
   - `nickname`
   - `status` BOOLEAN field, false value means deactivation.
 
+## `/api/pleroma/admin/users/:nickname`
+
+### Retrive the details of a user
+
+- Method: `GET`
+- Params:
+  - `nickname`
+- Response:
+  - On failure: `Not found`
+  - On success: JSON of the user
+
 ## `/api/pleroma/admin/relay`
 
 ### Follow a Relay

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -45,6 +45,15 @@ def user_create(
     |> json(user.nickname)
   end
 
+  def user_show(conn, %{"nickname" => nickname}) do
+    with %User{} = user <- User.get_by_nickname(nickname) do
+      conn
+      |> json(AccountView.render("show.json", %{user: user}))
+    else
+      _ -> {:error, :not_found}
+    end
+  end
+
   def user_toggle_activation(conn, %{"nickname" => nickname}) do
     user = User.get_by_nickname(nickname)
 
@@ -231,6 +240,12 @@ def get_password_reset(conn, %{"nickname" => nickname}) do
     |> json(token.token)
   end
 
+  def errors(conn, {:error, :not_found}) do
+    conn
+    |> put_status(404)
+    |> json("Not found")
+  end
+
   def errors(conn, {:param_cast, _}) do
     conn
     |> put_status(400)

lib/pleroma/web/router.ex

@@ -140,6 +140,7 @@ defmodule Pleroma.Web.Router do
     pipe_through([:admin_api, :oauth_write])
 
     get("/users", AdminAPIController, :list_users)
+    get("/users/:nickname", AdminAPIController, :user_show)
     delete("/user", AdminAPIController, :user_delete)
     patch("/users/:nickname/toggle_activation", AdminAPIController, :user_toggle_activation)
     post("/user", AdminAPIController, :user_create)

test/web/admin_api/admin_api_controller_test.exs

@@ -40,6 +40,41 @@ test "Create" do
     end
   end
 
+  describe "/api/pleroma/admin/users/:nickname" do
+    test "Show", %{conn: conn} do
+      admin = insert(:user, info: %{is_admin: true})
+      user = insert(:user)
+
+      conn =
+        conn
+        |> assign(:user, admin)
+        |> get("/api/pleroma/admin/users/#{user.nickname}")
+
+      expected = %{
+        "deactivated" => false,
+        "id" => to_string(user.id),
+        "local" => true,
+        "nickname" => user.nickname,
+        "roles" => %{"admin" => false, "moderator" => false},
+        "tags" => []
+      }
+
+      assert expected == json_response(conn, 200)
+    end
+
+    test "when the user doesn't exist", %{conn: conn} do
+      admin = insert(:user, info: %{is_admin: true})
+      user = build(:user)
+
+      conn =
+        conn
+        |> assign(:user, admin)
+        |> get("/api/pleroma/admin/users/#{user.nickname}")
+
+      assert "Not found" == json_response(conn, 404)
+    end
+  end
+
   describe "PUT /api/pleroma/admin/users/tag" do
     setup do
       admin = insert(:user, info: %{is_admin: true})