Implement changes to 2FA system (#761)

database/migrations/2017_11_11_161922_Add2FaLastAuthorizationTimeColumn.php

@@ -0,0 +1,60 @@
+<?php
+
+use Carbon\Carbon;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Crypt;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class Add2FaLastAuthorizationTimeColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->text('totp_secret')->nullable()->change();
+            $table->timestampTz('totp_authenticated_at')->after('totp_secret')->nullable();
+        });
+
+        DB::transaction(function () {
+            DB::table('users')->get()->each(function ($user) {
+                if (is_null($user->totp_secret)) {
+                    return;
+                }
+
+                DB::table('users')->where('id', $user->id)->update([
+                    'totp_secret' => Crypt::encrypt($user->totp_secret),
+                    'updated_at' => Carbon::now()->toIso8601String(),
+                ]);
+            });
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down()
+    {
+        DB::transaction(function () {
+            DB::table('users')->get()->each(function ($user) {
+                if (is_null($user->totp_secret)) {
+                    return;
+                }
+
+                DB::table('users')->where('id', $user->id)->update([
+                    'totp_secret' => Crypt::decrypt($user->totp_secret),
+                    'updated_at' => Carbon::now()->toIso8601String(),
+                ]);
+            });
+        });
+
+        DB::statement('ALTER TABLE users MODIFY totp_secret CHAR(16) DEFAULT NULL');
+
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropColumn('totp_authenticated_at');
+        });
+    }
+}