From 99dbea146937da3e39ae135db359b322513f0e2b Mon Sep 17 00:00:00 2001
From: Alfredo Ramos <alfredo.ramos.sanchez@gmail.com>
Date: Mon, 6 Apr 2020 16:02:20 -0500
Subject: [PATCH] [ticket/16338] Add DuckDuckGo bot

PHPBB3-16338
---
 phpBB/includes/functions_convert.php          |  1 +
 .../db/migration/data/v33x/bot_update.php     | 91 +++++++++++++++++++
 .../module/install_data/task/add_bots.php     |  1 +
 3 files changed, 93 insertions(+)
 create mode 100644 phpBB/phpbb/db/migration/data/v33x/bot_update.php

diff --git a/phpBB/includes/functions_convert.php b/phpBB/includes/functions_convert.php
index 96e108792d..ab1efc16c9 100644
--- a/phpBB/includes/functions_convert.php
+++ b/phpBB/includes/functions_convert.php
@@ -1840,6 +1840,7 @@ function add_bots()
 		'Ask Jeeves [Bot]'			=> array('Ask Jeeves', ''),
 		'Baidu [Spider]'			=> array('Baiduspider+(', ''),
 		'Bing [Bot]'				=> array('bingbot/', ''),
+		'DuckDuckGo [Bot]'			=> array('DuckDuckBot/', ''),
 		'Exabot [Bot]'				=> array('Exabot/', ''),
 		'FAST Enterprise [Crawler]'	=> array('FAST Enterprise Crawler', ''),
 		'FAST WebCrawler [Crawler]'	=> array('FAST-WebCrawler/', ''),
diff --git a/phpBB/phpbb/db/migration/data/v33x/bot_update.php b/phpBB/phpbb/db/migration/data/v33x/bot_update.php
new file mode 100644
index 0000000000..cab5a5dde8
--- /dev/null
+++ b/phpBB/phpbb/db/migration/data/v33x/bot_update.php
@@ -0,0 +1,91 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\db\migration\data\v33x;
+
+class bot_update extends \phpbb\db\migration\migration
+{
+	static public function depends_on()
+	{
+		return ['\phpbb\db\migration\data\v330\v330'];
+	}
+
+	public function update_data()
+	{
+		return [
+			['custom', [[$this, 'add_duckduckgo_bot']]],
+		];
+	}
+
+	public function add_duckduckgo_bot()
+	{
+		$bot_name = 'DuckDuckGo [Bot]';
+		$bot_name_clean = utf8_clean_string($bot_name);
+
+		$sql = 'SELECT user_id
+			FROM ' . $this->table_prefix . 'users
+			WHERE ' . $this->db->sql_build_array('SELECT', ['username_clean' => $bot_name_clean]);
+		$result = $this->db->sql_query($sql);
+		$bot_exists = (bool) $this->db->sql_fetchfield('user_id');
+		$this->db->sql_freeresult($result);
+
+		if (!$bot_exists)
+		{
+			$bot_agent = 'DuckDuckBot/';
+			$bot_ip = '';
+			$sql = 'SELECT group_id, group_colour
+				FROM ' . $this->table_prefix . 'groups
+				WHERE ' . $this->db->sql_build_array('SELECT', ['group_name' => 'BOTS']);
+			$result = $this->db->sql_query($sql);
+			$group_row = $this->db->sql_fetchrow($result);
+			$this->db->sql_freeresult($result);
+
+			// Default fallback, should never get here
+			if (!$group_row)
+			{
+				$group_row['group_id'] = 6;
+				$group_row['group_colour'] = '9E8DA7';
+			}
+
+			if (!function_exists('user_add'))
+			{
+				include($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+			}
+
+			$user_row = [
+				'user_type'				=> USER_IGNORE,
+				'group_id'				=> $group_row['group_id'],
+				'username'				=> $bot_name,
+				'user_regdate'			=> time(),
+				'user_password'			=> '',
+				'user_colour'			=> $group_row['group_colour'],
+				'user_email'			=> '',
+				'user_lang'				=> $this->config['default_lang'],
+				'user_style'			=> $this->config['default_style'],
+				'user_timezone'			=> 0,
+				'user_dateformat'		=> $this->config['default_dateformat'],
+				'user_allow_massemail'	=> 0,
+			];
+
+			$user_id = user_add($user_row);
+			$sql = 'INSERT INTO ' . $this->table_prefix . 'bots ' . $this->db->sql_build_array('INSERT', [
+				'bot_active'	=> 1,
+				'bot_name'		=> (string) $bot_name,
+				'user_id'		=> (int) $user_id,
+				'bot_agent'		=> (string) $bot_agent,
+				'bot_ip'		=> (string) $bot_ip,
+			]);
+			$this->db->sql_query($sql);
+		}
+	}
+}
diff --git a/phpBB/phpbb/install/module/install_data/task/add_bots.php b/phpBB/phpbb/install/module/install_data/task/add_bots.php
index 07f8e025cf..e53087a671 100644
--- a/phpBB/phpbb/install/module/install_data/task/add_bots.php
+++ b/phpBB/phpbb/install/module/install_data/task/add_bots.php
@@ -63,6 +63,7 @@ class add_bots extends \phpbb\install\task_base
 		'Ask Jeeves [Bot]'			=> array('Ask Jeeves', ''),
 		'Baidu [Spider]'			=> array('Baiduspider', ''),
 		'Bing [Bot]'				=> array('bingbot/', ''),
+		'DuckDuckGo [Bot]'			=> array('DuckDuckBot/', ''),
 		'Exabot [Bot]'				=> array('Exabot', ''),
 		'FAST Enterprise [Crawler]'	=> array('FAST Enterprise Crawler', ''),
 		'FAST WebCrawler [Crawler]'	=> array('FAST-WebCrawler/', ''),