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The source code
<?php
// File: $Id: pnBlocks.php,v 1.4 2004/08/20 15:44:14 markwest Exp $ $Name: HEAD $
// ----------------------------------------------------------------------
// POSTNUKE Content Management System
// Copyright (C) 2001 by the PostNuke Development Team.
// http://www.postnuke.com/
// ----------------------------------------------------------------------
// Based on:
// PHP-NUKE Web Portal System - http://phpnuke.org/
// Thatware - http://thatware.org/
// ----------------------------------------------------------------------
// LICENSE
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License (GPL)
// as published by the Free Software Foundation; either version 2
// 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 General Public License for more details.
//
// To read the license please visit http://www.gnu.org/copyleft/gpl.html
// ----------------------------------------------------------------------
// Original Author of file: Patrick Kellum <webmaster@quahog-library.com>
// Purpose of file: Display the side blocks on the page
// ----------------------------------------------------------------------
// Advanced Blocks System
//
// Copyright (c) 2001 Patrick Kellum (webmaster@quahog-library.com)
// http://ctarl-ctarl.com/
//
// Based in part of the blocks system in PHP-Nuke
// Copyright (c) 2001 by Francisco Burzi (fbc@mandrakesoft.com)
// http://phpnuke.org/
// ----------------------------------------------------------------------
/**
* @package PostNuke_Core
* @subpackage PostNuke_pnAPI
*/
global $blocks_modules;
$blocks_modules = array();
/**
* change the function name so themes remain compatable
* @param $side block position to render
*/
function blocks($side)
{
global $blocks_modules, $blocks_side;
$dbconn =& pnDBGetConn(true);
$pntable =& pnDBGetTables();
$currentlang = pnUserGetLang();
if (pnConfigGetVar('multilingual') == 1) {
$column = &$pntable['blocks_column'];
$querylang = "AND ($column[blanguage]='$currentlang' OR $column[blanguage]='')";
} else {
$querylang = '';
}
$side = strtolower($side[0]);
$blocks_side = $side;
$column = &$pntable['blocks_column'];
$result =& $dbconn->Execute("SELECT $column[bid] as bid, $column[bkey] as bkey, $column[mid] as mid, $column[title] as title, $column[content] as content, $column[url] as url, $column[position] as position, $column[weight] as weight, $column[active] as active, $column[refresh] as refresh, $column[last_update] AS unix_update, $column[blanguage] as blanguage FROM $pntable[blocks] WHERE $column[position]='" . pnVarPrepForStore($side) . "' AND $column[active]=1 $querylang ORDER BY $column[weight]");
while (!$result->EOF) {
$row = $result->GetRowAssoc(false);
$row['unix_update'] = $result->UnixTimeStamp($row['unix_update']);
$modinfo = pnModGetInfo($row['mid']);
if (!$modinfo) {
// Assume core
$modinfo['name'] = 'Core';
}
echo pnBlockShow($modinfo['name'], $row['bkey'], $row);
$result->MoveNext();
}
}
/**
* show a block
*
* @param string $modname module name
* @param string $block name of the block
* @param array $blockinfo information parameters
* @return array blockinfo array
*/
function pnBlockShow($modname, $block, $blockinfo = array())
{
global $blocks_modules;
pnBlockLoad($modname, $block);
$displayfunc = "{$modname}_{$block}block_display";
if (function_exists($displayfunc)) {
// New-style blocks
return $displayfunc($blockinfo);
} else {
// Old-style blocks
if (isset($blocks_modules[$block]['func_display'])) {
return $blocks_modules[$block]['func_display']($blockinfo);
} else {
$blockinfo['title'] = "Block Type $block Not Found";
$blockinfo['content'] = "The block type $block doesn't seem to exist. Please check corresponding blocks directory.";
return themesideblock($blockinfo);
}
}
}
/**
* load a block
*
* @param string $modname module name
* @param string $block name of the block
* @return bool true on successful load, false otherwise
*/
function pnBlockLoad($modname, $block)
{
global $blocks_modules;
static $loaded = array();
if (isset($loaded["$modname$block"])) {
return true;
}
if ((empty($modname)) || ($modname == 'Core')) {
$modname = 'Core';
$moddir = 'includes/blocks';
$langdir = 'includes/language/blocks';
} else {
$modinfo = pnModGetInfo(pnModGetIdFromName($modname));
$moddir = 'modules/' . pnVarPrepForOS($modinfo['directory']) . '/pnblocks';
$langdir = 'modules/' . pnVarPrepForOS($modinfo['directory']) . '/pnlang';
}
// Load the block
$incfile = $block . ".php";
$filepath = $moddir . '/' . pnVarPrepForOS($incfile);
if (!file_exists($filepath)) {
return false;
}
include_once $filepath;
$loaded["$modname$block"] = 1;
// Load the block language files
$currentlangfile = $langdir . '/' . pnVarPrepForOS(pnUserGetLang()) . '/' . pnVarPrepForOS($incfile);
$defaultlangfile = $langdir . '/' . pnVarPrepForOS(pnConfigGetVar('language')) . '/' . pnVarPrepForOS($incfile);
if (file_exists($currentlangfile)) {
include $currentlangfile;
} elseif (file_exists($defaultlangfile)) {
include "$defaultlangfile";
}
// Initialise block if required (new-style)
$initfunc = "{$modname}_{$block}block_init";
if (function_exists($initfunc)) {
$initfunc();
}
return true;
}
/**
* load all blocks
* @return array array of blocks
*/
function pnBlockLoadAll()
{
// Load core and old-style blocks
global $blocks_modules;
$dib = opendir('includes/blocks/');
while($f = readdir($dib)) {
if (preg_match('/\.php$/', $f)) {
$block = preg_replace('/\.php$/', '', $f);
if (!pnBlockLoad('Core', $block)) {
// Block load failed
return false;
}
if (!isset($blocks_modules[$block]['module'])) {
$blocks_modules[$block]['bkey'] = $block;
$blocks_modules[$block]['module'] = 'Core';
$blocks_modules[$block]['mid'] = 0;
}
}
}
closedir($dib);
// Load new-style blocks
$dbconn =& pnDBGetConn(true);
$pntable =& pnDBGetTables();
$modulestable = $pntable['modules'];
$modulescolumn = &$pntable['modules_column'];
$sql = "SELECT $modulescolumn[name],
$modulescolumn[directory],
$modulescolumn[id]
FROM $modulestable";
$result =& $dbconn->Execute($sql);
if ($dbconn->ErrorNo() != 0) {
return;
}
while (list($name, $directory, $mid) = $result->fields) {
$result->MoveNext();
$blockdir = 'modules/' . pnVarPrepForOS($directory) . '/pnblocks';
if (!@is_dir($blockdir)) {
continue;
}
$dib = opendir($blockdir);
while($f = readdir($dib)) {
if (preg_match('/\.php$/', $f)) {
$block = preg_replace('/\.php$/', '', $f);
if (!pnBlockLoad($name, $block)) {
// Block load failed
return false;
}
// Get info on the block
$usname = preg_replace('/ /', '_', $name);
$infofunc = $usname . '_' . $block . 'block_info';
if (function_exists($infofunc)) {
$blocks_modules["$name$block"] = $infofunc();
if (!isset($blocks_modules["$name$block"]['module'])) {
$blocks_modules["$name$block"]['module'] = $name;
}
$blocks_modules["$name$block"]['bkey'] = $block;
$blocks_modules["$name$block"]['mid'] = $mid;
} else {
// Might be old-style block in new place - sigh
if (!empty($blocks_modules[$block])) {
$blocks_modules["$name$block"] = $blocks_modules[$block];
unset($blocks_modules[$block]);
if (!isset($blocks_modules["$name$block"]['module'])) {
$blocks_modules["$name$block"]['module'] = $name;
}
$blocks_modules["$name$block"]['bkey'] = $block;
$blocks_modules["$name$block"]['mid'] = $mid;
}
}
}
}
}
$result->Close();
// Return information gathered
return $blocks_modules;
}
/**
* extract an array of config variables out of the content field of a
* block
*
* @param the $ content from the db
*/
function pnBlockVarsFromContent($content)
{
if (preg_match('/;}?$/', $content)) {
// Serialised content
return (unserialize($content));
}
// Unserialised content
$links = explode("\n", $content);
$vars = array();
foreach ($links as $link) {
$link = trim($link);
if ($link) {
$var = explode(":=", $link);
if (isset($var[1])) {
$vars[$var[0]] = $var[1];
}
}
}
return($vars);
}
/**
* put an array of config variables in the content field of a block
*
* @param the $ config vars array, in key->value form
*/
function pnBlockVarsToContent($vars)
{
return (serialize($vars));
}
// adapter function for themesidebox function in old themes
function themesideblock($row)
{
global $postnuke_theme;
if (!isset($row['bid'])) {
$row['bid'] = '';
}
if (!isset($row['title'])) {
$row['title'] = '';
}
// check for collapseable menus being enabled.
if (pnModGetVar('Blocks', 'collapseable') == 1) {
if (pnUserLoggedIn()) {
if (checkuserblock($row) == '1') {
if (!empty($row['title'])) {
$row['title'] .= ' <a href="' . pnVarPrepHTMLDisplay(pnModURL ('Blocks', 'user', 'changestatus', array ('bid' => $row['bid'], 'authid' => pnSecGenAuthKey()))) . '"><img src="images/global/upb.gif" alt="" /></a>';
//$row['title'] .= " <a href=\"modules.php?op=modload&name=Blocks&file=index&req=ChangeStatus&bid=$row[bid]&authid=" . pnSecGenAuthKey() . "\"><img src=\"images/global/upb.gif\" alt=\"\" /></a>";
}
} else {
$row['content'] = '';
if (!empty($row['title'])) {
$row['title'] .= ' <a href="' . pnVarPrepHTMLDisplay(pnModURL ('Blocks', 'user', 'changestatus', array ('bid' => $row['bid'], 'authid' => pnSecGenAuthKey()))) . '"><img src="images/global/downb.gif" alt="" /></a>';
//$row['title'] .= " <a href=\"modules.php?op=modload&name=Blocks&file=index&req=ChangeStatus&bid=$row[bid]&authid=" . pnSecGenAuthKey() . "\"><img src=\"images/global/downb.gif\" alt=\"\" /></a>";
}
}
}
}
// end collapseable menu config
if ($postnuke_theme) {
return themesidebox($row);
} else {
return themesidebox($row['title'], $row['content']);
}
}
function checkuserblock($row)
{
$dbconn =& pnDBGetConn(true);
$pntable =pnDBGetTables();
if(!isset($row['bid'])) {
$row['bid'] = '';
}
if (pnUserLoggedIn()) {
$uid = pnUserGetVar('uid');
$column = &$pntable['userblocks_column'];
$sql="SELECT $column[active] FROM ".$pntable['userblocks']
." WHERE ". $column['bid']. "='".pnVarPrepForStore($row['bid'])
."' AND ".$column['uid']."='".pnVarPrepForStore($uid)."'";
$result =& $dbconn->Execute($sql);
if ($dbconn->ErrorNo() != 0) {
pnSessionSetVar('errormsg', 'Error: ' . $dbconn->ErrorNo() . ': ' . $dbconn->ErrorMsg());
return true;
}
if($result->EOF) {
$uid = pnVarPrepForStore($uid);
$row['bid'] = pnVarPrepForStore($row['bid']);
$sql="INSERT INTO $pntable[userblocks] ($column[uid], $column[bid], $column[active]) VALUES (".pnVarPrepForStore($uid).", '$row[bid]', '1')";
$result =& $dbconn->Execute($sql);
if ($dbconn->ErrorNo() != 0) {
pnSessionSetVar('errormsg', 'Error: ' . $dbconn->ErrorNo() . ': ' . $dbconn->ErrorMsg());
return true;
}
return true;
} else {
list($active)=$result->fields;
return $active;
}
} else {
return false;
}
}
/**
* get block information
* @param bid the block id
* @return array array of block information
*/
function pnBlockGetInfo($bid)
{
static $blocks;
if (empty($blocks[$bid])) {
$dbconn =& pnDBGetConn(true);
$pntable =& pnDBGetTables();
$blockstable = $pntable['blocks'];
$blockscolumn = &$pntable['blocks_column'];
$sql = "SELECT $blockscolumn[bid],
$blockscolumn[bkey],
$blockscolumn[title],
$blockscolumn[content],
$blockscolumn[url],
$blockscolumn[position],
$blockscolumn[weight],
$blockscolumn[active],
$blockscolumn[refresh],
$blockscolumn[last_update],
$blockscolumn[blanguage],
$blockscolumn[mid]
FROM $blockstable";
// WHERE $blockscolumn[bid] = '" . (int)pnVarPrepForStore($bid) . "'";
$result =& $dbconn->Execute($sql);
if ($dbconn->ErrorNo() != 0) {
return;
}
while(!$result->EOF){
list($resbid,
$resarray['bkey'],
$resarray['title'],
$resarray['content'],
$resarray['url'],
$resarray['position'],
$resarray['weight'],
$resarray['active'],
$resarray['refresh'],
$resarray['last_update'],
$resarray['language'],
$resarray['mid']) = $result->fields;
// Move that ADOdb pointer !
$result->MoveNext();
$blocks[$resbid] = $resarray;
}
$result->Close();
}
if (isset($blocks[$bid])) {
return $blocks[$bid];
} else {
return;
}
}
/**
* get block information
* @param title the block title
* @return array array of block information
*/
function pnBlockGetInfoByTitle($title)
{
static $blocks;
if (empty($blocks[$title])) {
$dbconn =& pnDBGetConn(true);
$pntable =& pnDBGetTables();
$blockstable = $pntable['blocks'];
$blockscolumn = &$pntable['blocks_column'];
$sql = "SELECT $blockscolumn[title],
$blockscolumn[bkey],
$blockscolumn[title],
$blockscolumn[content],
$blockscolumn[url],
$blockscolumn[position],
$blockscolumn[weight],
$blockscolumn[active],
$blockscolumn[refresh],
$blockscolumn[last_update],
$blockscolumn[blanguage],
$blockscolumn[mid],
$blockscolumn[bid]
FROM $blockstable";
// WHERE $blockscolumn[title] = '" .pnVarPrepForStore($title)."' ";
$result =& $dbconn->Execute($sql);
if ($dbconn->ErrorNo() != 0) {
return;
}
while(!$result->EOF){
list($restitle,
$resarray['bkey'],
$resarray['title'],
$resarray['content'],
$resarray['url'],
$resarray['position'],
$resarray['weight'],
$resarray['active'],
$resarray['refresh'],
$resarray['last_update'],
$resarray['language'],
$resarray['mid'],
$resarray['bid']) = $result->fields;
$resarray['unix_update']=$result->UnixTimeStamp($resarray['last_update']);
// Move that ADOdb pointer !
$result->MoveNext();
$blocks[$restitle] = $resarray;
}
$result->Close();
}
if (isset($blocks[$title])) {
return $blocks[$title];
} else {
return;
}
}
?>
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