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<?php /*

ocPortal
Copyright (c) ocProducts, 2004-2012

See text/EN/licence.txt for full licencing information.


NOTE TO PROGRAMMERS:
Do not edit this file. If you need to make changes, save your changed file to the appropriate *_custom folder
**** If you ignore this advice, then your website upgrades (e.g. for bug fixes) will likely kill your changes ****

*/

/**
* @license http://opensource.org/licenses/cpal_1.0 Common Public Attribution License
* @copyright ocProducts Ltd
* @package core
*/

/**
* Standard code module initialisation function.
*/
function init__ajax()
{
if (!function_exists('do_lang'))
{
/**
* Get the human-readable form of a language id, or a language entry from a language INI file. (STUB)
*
* @param ID_TEXT The language id
* @param ?mixed The first token [string or tempcode] (replaces {1}) (NULL: none)
* @param ?mixed The second token [string or tempcode] (replaces {2}) (NULL: none)
* @param ?mixed The third token (replaces {3}). May be an array of [of string], to allow any number of additional args (NULL: none)
* @param ?LANGUAGE_NAME The language to use (NULL: users language)
* @param boolean Whether to cause ocPortal to exit if the lookup does not succeed
* @return ?mixed The human-readable content (NULL: not found). String normally. Tempcode if tempcode parameters.
*/
function do_lang($a,$param_a=NULL,$param_b=NULL,$param_c=NULL,$lang=NULL,$require_result=true)
{
if (function_exists('_do_lang')) return _do_lang($a,$param_a,$param_b,$param_c,$lang,$require_result);

switch ($a)
{
case 'LINK_NEW_WINDOW':
return 'new window';
case 'SPREAD_TABLE':
return 'Spread table';
case 'MAP_TABLE':
return 'Item to value mapper table';
case 'charset':
return NULL;
}

if (is_null($param_a)) return $a;
return serialize(array($a,$param_a,$param_b,$param_c));
}
}
}

/**
* AJAX script for checking if a new username is valid.
*/
function username_check_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/plain');

require_code('ocf_members_action');
require_code('ocf_members_action2');
require_lang('ocf');
$username=trim(get_param('username',false,true));
$error=ocf_check_name_valid($username,NULL,trim(post_param('password',NULL)),true);
if (!is_null($error)) $error->evaluate_echo();
}

/**
* AJAX script for finding out privileges for the queried resource.
*/
function find_permissions_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/plain');

require_code('zones2');
require_code('permissions2');

$serverid=get_param('serverid');
$x=get_param('x');
$matches=array();
preg_match('#^access_(\d+)_sp_(.+)$#',$x,$matches);
$group_id=intval($matches[1]);
$sp=$matches[2];
require_all_lang();
echo do_lang('PT_'.$sp).'=';
if ($serverid=='_root')
{
echo has_specific_permission_group($group_id,$sp)?do_lang('YES'):do_lang('NO');
} else
{
preg_match('#^([^:]*):([^:]*)(:|$)#',$serverid,$matches);
$zone=$matches[1];
$page=$matches[2];

$_pagelinks=extract_module_functions_page($zone,$page,array('get_page_links'),array(NULL,false,NULL,true));

$bits=(is_null($_pagelinks[0]))?array('!',''):(is_array($_pagelinks[0])?call_user_func_array($_pagelinks[0][0],$_pagelinks[0][1]):eval($_pagelinks[0])); // If $_pagelinks[0] is NULL then it's an error: extract_page_link_permissions is always there when there are cat permissions
$module=$bits[1];

echo has_specific_permission_group($group_id,$sp,$module)?do_lang('YES'):do_lang('NO');
}
}

/**
* AJAX script to store an autosave.
*/
function store_autosave()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

$member_id=get_member();
$key=post_param('key');
$value=post_param('value');
$time=time();

$GLOBALS['SITE_DB']->query_insert('autosave',array(
'a_member_id'=>$member_id,
'a_key'=>$key,
'a_value'=>$value,
'a_time'=>$time,
));
}

/**
* AJAX script to retrieve an autosave.
*/
function retrieve_autosave()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/plain');

$member_id=get_member();
$key=post_param('key');

@ini_set('ocproducts.xss_detect','0');

echo $GLOBALS['SITE_DB']->query_value_null_ok('autosave','a_value',array('a_member_id'=>$member_id,'a_key'=>$key),'ORDER BY a_time DESC');
}

/**
* AJAX script to make a fractional edit to some data.
*/
function fractional_edit_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-type: text/plain; charset='.get_charset());

$_POST['fractional_edit']='1';

global $SESSION_CONFIRMED;
if ($SESSION_CONFIRMED==0)
{
return;
}

$zone=get_param('zone');
$page=get_param('page');
if (!has_actual_page_access(get_member(),$page,$zone))
access_denied('ZONE_ACCESS');

require_code('site');
request_page($page,true);

$supports_comcode=get_param_integer('supports_comcode',0)==1;
convert_data_encodings(true);
$edited=post_param(get_param('edit_param_name'));
if ($supports_comcode)
{
$_edited=comcode_to_tempcode($edited,get_member());
$edited=$_edited->evaluate();
}
@ini_set('ocproducts.xss_detect','0');
echo $edited;
}

/**
* AJAX script to tell if data has been changed.
*/
function change_detection_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-type: text/plain; charset='.get_charset());

$page=get_param('page');

require_code('hooks/systems/change_detection/'.filter_naughty($page),true);

$refresh_if_changed=either_param('refresh_if_changed');
$object=object_factory('Hook_'.$page);
$result=$object->run($refresh_if_changed);
echo ($result)?'1':'0';
}

/**
* AJAX script for recording that something is currently being edited.
*/
function edit_ping_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-type: text/plain; charset='.get_charset());

$GLOBALS['SITE_DB']->query('DELETE FROM '.$GLOBALS['SITE_DB']->get_table_prefix().'edit_pings WHERE the_time<'.strval(time()-200));

$GLOBALS['SITE_DB']->query_delete('edit_pings',array(
'the_page'=>get_param('page'),
'the_type'=>get_param('type'),
'the_id'=>get_param('id',false,true),
'the_member'=>get_member()
));

$GLOBALS['SITE_DB']->query_insert('edit_pings',array(
'the_page'=>get_param('page'),
'the_type'=>get_param('type'),
'the_id'=>get_param('id',false,true),
'the_time'=>time(),
'the_member'=>get_member()
));

echo '1';
}

/**
* AJAX script for HTML<>Comcode conversion (and Comcode-Text>Comcode-XML).
*/
function comcode_convert_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

global $EXTRA_HEAD;
if (!isset($EXTRA_HEAD)) $EXTRA_HEAD=new ocp_tempcode();
$EXTRA_HEAD->attach('<meta name="robots" content="noindex" />'); // XHTMLXHTML

require_lang('comcode');

convert_data_encodings(true);
$data=post_param('data',NULL,false,false);
if (is_null($data))
{
$title=get_page_title('_COMCODE');
$fields=new ocp_tempcode();
require_code('form_templates');
$fields->attach(form_input_huge(do_lang_tempcode('TEXT'),'','data','',true));
$fields->attach(form_input_tick('Convert HTML to Comcode','','from_html',false));
$fields->attach(form_input_tick('Convert to semihtml','','semihtml',false));
$fields->attach(form_input_tick('Comes from WYSIWYG','','data__is_wysiwyg',false));
$fields->attach(form_input_tick('Lax mode (less parse rules)','','lax',false));
$hidden=new ocp_tempcode();
$hidden->attach(form_input_hidden('to_comcode_xml',strval(either_param_integer('to_comcode_xml',0))));
$out2=globalise(do_template('FORM_SCREEN',array('_GUID'=>'dd82970fa1196132e07049871c51aab7','TITLE'=>$title,'SUBMIT_NAME'=>do_lang_tempcode('VIEW'),'TEXT'=>'','HIDDEN'=>$hidden,'URL'=>find_script('comcode_convert',true),'FIELDS'=>$fields)),NULL,'',true);
$out2->evaluate_echo();
return;
}
$panel=either_param_integer('panel',NULL);
if (!is_null($panel))
{
global $TEMPCODE_SETGET;
if ($panel==0)
{
$TEMPCODE_SETGET['in_panel']='0';
} else
{
$TEMPCODE_SETGET['in_panel']='1';
}
}
if (either_param_integer('to_comcode_xml',0)==1)
{
require_code('comcode_conversion');
$out=comcode_text__to__comcode_xml($data);
}
elseif (either_param_integer('from_html',0)==1)
{
require_code('comcode_from_html');
$out=trim(semihtml_to_comcode($data));
} else
{
if (either_param_integer('lax',0)==1) $GLOBALS['LAX_COMCODE']=true;
if (either_param_integer('is_semihtml',0)==1)
{
require_code('comcode_from_html');
$data=semihtml_to_comcode($data);
}
$db=$GLOBALS['SITE_DB'];
if (get_param_integer('forum_db',0)==1) $db=$GLOBALS['FORUM_DB'];
$tpl=comcode_to_tempcode($data,get_member(),false,60,NULL,$db,either_param_integer('semihtml',0)==1/*true*/,false,false,false);
$evaluated=$tpl->evaluate();
$out='';
if ($evaluated!='')
{
if (get_param_integer('css',0)==1)
{
global $CSSS;
unset($CSSS['global']);
unset($CSSS['no_cache']);
$out.=static_evaluate_tempcode(css_tempcode());
}
if (get_param_integer('javascript',0)==1)
{
global $JAVASCRIPTS;
unset($JAVASCRIPTS['javascript']);
unset($JAVASCRIPTS['javascript_staff']);
$out.=static_evaluate_tempcode(javascript_tempcode());
}
}
$out.=trim(trim($evaluated));
}

if (either_param_integer('fix_bad_html',0)==1)
{
require_code('xhtml');
$new=xhtmlise_html($out,true);

if (preg_replace('#<!--.*-->#Us','',preg_replace('#\s+#','',$new))!=preg_replace('#<!--.*-->#Us','',preg_replace('#\s+#','',$out)))
{
/*$myfile=fopen(get_file_base().'/a','wb');
fwrite($myfile,preg_replace('#<!--.*-->#Us','',preg_replace('#\s+#',chr(10),$new)));
fclose($myfile);

$myfile=fopen(get_file_base().'/b','wb');
fwrite($myfile,preg_replace('#<!--.*-->#Us','',preg_replace('#\s+#',chr(10),$out)));
fclose($myfile);*/

$out=$new.do_lang('BROKEN_XHTML_FIXED');
}
}
if (either_param_integer('keep_skip_rubbish',0)==0)
{
@ini_set('ocproducts.xss_detect','0');

$box_title=get_param('box_title','');
if (is_object($out)) $out=$out->evaluate();
if (($box_title!='') && ($out!='')) $out=static_evaluate_tempcode(put_in_standard_box(make_string_tempcode($out),$box_title));

header('Content-Type: text/xml');
echo '<?xml version="1.0" encoding="'.get_charset().'"?'.'>';
echo '<request><result>';
echo xmlentities($out);
echo '</result></request>';
} else
{
header('Content-type: text/plain; charset='.get_charset());
echo $out;
}
}

/**
* AJAX script for checking if a username exists.
*/
function username_exists_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-type: text/plain; charset='.get_charset());
convert_data_encodings(true);
$username=trim(get_param('username',false,true));
$member_id=$GLOBALS['FORUM_DRIVER']->get_member_from_username($username);
if (is_null($member_id)) echo 'false';
}

/**
* AJAX script for allowing username/author/search-terms home-in.
*/
function namelike_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

convert_data_encodings(true);
$id=str_replace('*','%',get_param('id',false,true));
$special=get_param('special','');

if ($special=='admin_search')
{
$names=array();
if ($id!='')
{
require_all_lang();
$hooks=find_all_hooks('systems','do_next_menus');
foreach (array_keys($hooks) as $hook)
{
require_code('hooks/systems/do_next_menus/'.filter_naughty_harsh($hook));
$object=object_factory('Hook_do_next_menus_'.filter_naughty_harsh($hook),true);
if (is_null($object)) continue;
$info=$object->run(true);
foreach ($info as $i)
{
if (is_null($i)) continue;
$n=$i[3];
$n_eval=is_object($n)?$n->evaluate():$n;
if ($n_eval=='') continue;
if ((strpos(strtolower($n_eval),strtolower($id))!==false) && (has_actual_page_access(get_member(),$i[2][0],$i[2][2])))
{
$names[]='"'.$n_eval.'"';
}
}
}
if (count($names)>10) $names=array();
sort($names);
}
}
elseif ($special=='search')
{
$names=array();
$q='SELECT s_primary,COUNT(*) as cnt,MAX(s_num_results) AS s_num_results FROM '.get_table_prefix().'searches_logged WHERE ';
if ((db_has_full_text($GLOBALS['SITE_DB']->connection_read)) && (method_exists($GLOBALS['SITE_DB']->static_ob,'db_has_full_text_boolean')) && ($GLOBALS['SITE_DB']->static_ob->db_has_full_text_boolean()))
{
$q.=preg_replace('#\?#','s_primary',db_full_text_assemble($id,false));
} else
{
$q.='s_primary LIKE \''./*ideally we would put an % in front, but too slow*/db_encode_like($id).'%\'';
}
$q.=' AND s_primary NOT LIKE \'%<%\' AND '.db_string_not_equal_to('s_primary','').' GROUP BY s_primary ORDER BY cnt DESC';
$past_searches=$GLOBALS['SITE_DB']->query($q,20);
foreach ($past_searches as $search)
{
if ($search['cnt']>5)
$names[]=$search['s_primary'];
}
} else
{
if ((strlen($id)==0) && (addon_installed('chat')))
{
$rows=$GLOBALS['SITE_DB']->query_select('chat_buddies',array('member_liked'),array('member_likes'=>get_member()),'ORDER BY date_and_time',100);
$names=array();
foreach ($rows as $row)
{
$names[]=$GLOBALS['FORUM_DRIVER']->get_username($row['member_liked']);
}
} else
{
$names=array();
if (addon_installed('authors'))
{
if ($special=='author')
{
$num_authors=$GLOBALS['SITE_DB']->query_value('authors','COUNT(*)');
$like=($num_authors<1000)?db_encode_like('%'.$id.'%'):db_encode_like($id.'%'); // performance issue
$rows=$GLOBALS['SITE_DB']->query('SELECT author FROM '.$GLOBALS['SITE_DB']->get_table_prefix().'authors WHERE author LIKE \''.$like.'\' ORDER BY author',15);
$names=collapse_1d_complexity('author',$rows);
}
}

$likea=$GLOBALS['FORUM_DRIVER']->get_matching_members($id.'%',15);

foreach ($likea as $l)
{
if (count($names)<15)
$names[]=$GLOBALS['FORUM_DRIVER']->pname_name($l);
}
}

sort($names);
$names=array_unique($names);
}

@ini_set('ocproducts.xss_detect','0');

header('Content-Type: text/xml');
echo '<?xml version="1.0" encoding="'.get_charset().'"?'.'>';
echo '<request><result>';
foreach ($names as $name)
{
echo '<option value="'.escape_html($name).'" />';
}
echo '</result></request>';
}

/**
* AJAX script for dynamically extended selection tree.
*/
function ajax_tree_script()
{
// Closed site
$site_closed=get_option('site_closed');
if (($site_closed=='1') && (!has_specific_permission(get_member(),'access_closed_site')) && (!$GLOBALS['IS_ACTUALLY_ADMIN']))
{
header('Content-Type: text/plain');
@exit(get_option('closed'));
}

header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/xml');
$hook=filter_naughty_harsh(get_param('hook'));
require_code('hooks/systems/ajax_tree/'.$hook);
$object=object_factory('Hook_'.$hook);
convert_data_encodings(true);
$id=get_param('id','',true);
if ($id=='') $id=NULL;
@ini_set('ocproducts.xss_detect','0');
$html_mask=get_param_integer('html_mask',0)==1;
if (!$html_mask) echo '<?xml version="1.0" encoding="'.get_charset().'"?'.'>';
echo ($html_mask?'<html>':'<request>');
$_options=get_param('options','',true);
if ($_options=='') $_options=serialize(array());
$options=unserialize($_options);
$val=$object->run($id,$options,get_param('default',NULL,true));
echo str_replace('</body>','<br id="ended" /></body>',$val);
echo ($html_mask?'</html>':'</request>');
}

/**
* AJAX script for confirming a session is active.
*/
function confirm_session_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/plain');
global $SESSION_CONFIRMED;
if ($SESSION_CONFIRMED==0) echo $GLOBALS['FORUM_DRIVER']->get_username(get_member());
echo '';
}

/**
* AJAX script for getting the text of a template, as used by a certain theme.
*/
function load_template_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

if (!has_actual_page_access(get_member(),'admin_themes','adminzone')) exit();

@ini_set('ocproducts.xss_detect','0');

$theme=filter_naughty(get_param('theme'));
$id=filter_naughty(get_param('id'));

$x=get_custom_file_base().'/themes/'.$theme.'/templates_custom/'.$id;
if (!file_exists($x)) $x=get_file_base().'/themes/'.$theme.'/templates/'.$id;
if (!file_exists($x)) $x=get_custom_file_base().'/themes/default/templates_custom/'.$id;
if (!file_exists($x)) $x=get_file_base().'/themes/default/templates/'.$id;
if (file_exists($x)) echo file_get_contents($x);
}

/**
* AJAX script for dynamic inclusion of CSS.
*/
function sheet_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/css');
$sheet=get_param('sheet');
if ($sheet!='') echo str_replace('../../../','',file_get_contents(css_enforce(filter_naughty_harsh($sheet))));
}

/**
* AJAX script for dynamic inclusion of XHTML snippets.
*/
function snippet_script()
{
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

header('Content-Type: text/plain; charset='.get_charset());
$hook=filter_naughty_harsh(get_param('snippet'));
require_code('hooks/systems/snippets/'.$hook,true);
$object=object_factory('Hook_'.$hook);
$tempcode=$object->run();
$out=$tempcode->evaluate();

require_code('xhtml');
$out=xhtmlise_html($out,true);

// End early execution listening (this means register_shutdown_function will run after connection closed - faster)
if (function_exists('apache_setenv')) @apache_setenv('no-gzip','1');
@ini_set('zlib.output_compression','Off');
$size=strlen($out);
header('Connection: close');
ignore_user_abort(true);
header('Content-Encoding: none');
header('Content-Length: '.strval($size));
echo $out;
@ob_end_flush();
flush();
}


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