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<?php
/**
* This file is part of Google SEO plugin for MyBB.
* Copyright (C) 2008-2011 Andreas Klauer <Andreas.Klauer@metamorpher.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
// Disallow direct access to this file for security reasons
if(!defined("IN_MYBB"))
{
die("Direct initialization of this file is not allowed.<br /><br />
Please make sure IN_MYBB is defined.");
}
// Workaround for missing THIS_SCRIPT
if(!defined("THIS_SCRIPT"))
{
define("THIS_SCRIPT", "");
}
/* --- Admin CP: --- */
/**
* The code in this section is only loaded in the Admin CP.
*/
if(defined("IN_ADMINCP"))
{
global $plugins, $db, $mybb;
/**
* Plugin API
*
* Please see google_seo/plugin.php for the real Plugin API.
*
* Plugin API is huge (>25k) and it's only required on the Admin CP plugin page.
* Therefore it is loaded only on demand.
*/
function google_seo_info()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_info();
}
function google_seo_is_installed()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_is_installed();
}
function google_seo_install()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_install();
}
function google_seo_uninstall()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_uninstall();
}
function google_seo_activate()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_activate();
}
function google_seo_deactivate()
{
require_once MYBB_ROOT."inc/plugins/google_seo/plugin.php";
return google_seo_plugin_deactivate();
}
/**
* Load the language variables on the settings page.
*/
$plugins->add_hook("admin_config_settings_begin", "google_seo_lang_settings");
function google_seo_lang_settings()
{
global $lang;
$lang->load("googleseo_settings");
}
/**
* Fizzle the cache on settings change.
*/
$plugins->add_hook('admin_config_settings_change_commit', 'google_seo_fizzle');
function google_seo_fizzle()
{
global $mybb, $cache;
// Kill the cache when someone changes URL settings the obvious way.
// Otherwise the cache may cause unnecessary redirects.
if(array_key_exists('google_seo_url_threads', $mybb->input['upsetting']))
{
$cache->update('google_seo_url', NULL);
}
}
/**
* Override some Google SEO settings if the database table is missing
* to avoid Admin CP becoming unuseable when the google_seo table is
* deleted manually or otherwise lost.
*/
if(!$db->table_exists("google_seo"))
{
$mybb->settings['google_seo_404'] = 0;
$mybb->settings['google_seo_meta'] = 0;
$mybb->settings['google_seo_redirect'] = 0;
$mybb->settings['google_seo_sitemap'] = 0;
$mybb->settings['google_seo_url'] = 0;
}
}
/* --- Prerequisites: --- */
/*
* Constants. Required by URL and Sitemap.
*/
define('GOOGLE_SEO_USER', 1);
define('GOOGLE_SEO_ANNOUNCEMENT', 2);
define('GOOGLE_SEO_FORUM', 3);
define('GOOGLE_SEO_THREAD', 4);
define('GOOGLE_SEO_EVENT', 5);
define('GOOGLE_SEO_CALENDAR', 6);
/*
* Unfortunately global.php sets mb_internal_encoding only after running
* the global_start hook (or maybe even not at all). We need it set it,
* so we do it ourselves.
*/
if(function_exists('mb_internal_encoding'))
{
@mb_internal_encoding('UTF-8');
}
/*
* Load the translation file for Google SEO.
*
*/
global $plugins;
$plugins->add_hook("global_start", "google_seo_lang");
function google_seo_lang()
{
global $lang;
$lang->load("googleseo");
}
/*
* Expand a string using values from an associative array.
* This function is required by several submodules.
*
*/
function google_seo_expand($string, $array)
{
$strtr = array();
foreach($array as $key => $value)
{
$strtr["{{$key}}"] = $value; // {var} style
$strtr["{\${$key}}"] = $value; // {$var} style
}
return strtr($string, $strtr);
}
/*
* Guess or query a thread id from a post id.
* Required by both URL and Redirect.
*/
function google_seo_tid($pid, $tid=0, $mode='default', $limit=1)
{
global $db, $style, $thread, $post;
global $google_seo_tid;
if($google_seo_tid[$pid] === NULL)
{
// trust the given tid
if($tid > 0)
{
$tid = (int)$tid;
}
// or guess tid
else if(is_array($style) && $style['pid'] == $pid && $style['tid'] > 0)
{
$tid = (int)$style['tid'];
}
else if(is_array($thread) && $thread['firstpost'] == $pid && $thread['tid'] > 0)
{
$tid = (int)$thread['tid'];
}
else if(is_array($post) && $post['pid'] == $pid && $post['tid'] > 0)
{
$tid = (int)$post['tid'];
}
else if($google_seo_tid[-$pid] !== NULL)
{
$tid = $google_seo_tid[-$pid];
}
// and/or query tid
if($limit > 0
&& ($mode == 'verify' || ($tid <= 0 && $mode != 'ignore')))
{
$pid = (int)$pid;
$db->google_seo_query_limit--;
$query = $db->simple_select('posts', 'tid', "pid={$pid}");
$tid = (int)$db->fetch_field($query, 'tid');
// positive pid cache for trusted tid
$google_seo_tid[$pid] = $tid;
}
else if($tid > 0)
{
// negative pid cache for previously guessed tid
$google_seo_tid[-$pid] = $tid;
}
return $tid;
}
return $google_seo_tid[$pid];
}
/*
* Handle special dynamic URL parameter
* Required by both URL and Redirect
*/
function google_seo_dynamic($url)
{
// This is complicated because of ?page&page=2, page being the thread title.
$query = explode('?', $url);
$query = $query[1];
if($query)
{
$query = str_replace('&', '&', $query);
$query = explode('&', $query);
foreach($query as $key)
{
// pick the first parameter that doesn't have a value
if(strpos($key, '=') === false)
{
return urldecode($key);
}
}
}
}
/*
* Encode URLs, leaving some special characters intact.
* Required by both URL and Redirect
*/
function google_seo_encode($url)
{
$url = rawurlencode((string)$url);
$url = strtr($url, array(
'%24' => '$',
'%26' => '&',
'%2F' => '/',
'%3A' => ':',
'%3B' => ';',
'%3D' => '=',
'%3F' => '?',
'%40' => '@',
'%7B' => '{',
'%7D' => '}',
));
return $url;
}
/* --- Submodules: --- */
/**
* Google SEO is split into separate files.
* Only the functionality that is actually enabled will be loaded.
* If all options are disabled (default) the plugin does nothing at all.
*/
global $settings;
foreach(array('404', 'meta', 'redirect', 'sitemap', 'url') as $module)
{
if($settings["google_seo_{$module}"])
{
require_once MYBB_ROOT."inc/plugins/google_seo/{$module}.php";
}
}
/* --- End of file. --- */
?>