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/home/develito/httpdocs/components/com_abook/router.php

<?php
/**
 * @package Joomla
 * @subpackage Abook
 * @copyright (C) 2010-2019 Federica Ugolotti
 * @license GNU/GPL, see LICENSE.php
 * Abook is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License 3
 * as published by the Free Software Foundation.

* Abook 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.

* You should have received a copy of the GNU General Public License
 * along with Abook; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

defined('_JEXEC') or die;

jimport('joomla.application.categories');
/**
 * Build the route for the com_abook component
 *
 * @param	array	An array of URL arguments
 * @return	array	The URL arguments to use to assemble the subsequent URL.
 * @since	1.5
 */
function AbookBuildRoute(&$query)
{
	$segments	= array();

// get a menu item based on Itemid or currently active
	$app		= JFactory::getApplication();
	$menu		= $app->getMenu();
	$params		= JComponentHelper::getParams('com_abook');
	$advanced	= $params->get('sef_advanced_link', 0);

// we need a menu item.  Either the one specified in the query, or the current active one if none specified
	if (empty($query['Itemid'])) {
		$menuItem = $menu->getActive();
		$menuItemGiven = false;
	}else {
		$menuItem = $menu->getItem($query['Itemid']);
		$menuItemGiven = true;
	}
        // check again
        if ($menuItemGiven && isset($menuItem) && $menuItem->component != 'com_abook')
        {
                $menuItemGiven = false;
                unset($query['Itemid']);
        }

if (isset($query['view']))
        {
                $view = $query['view'];
        }
        else
        {
                // we need to have a view in the query or it is an invalid URL
                return $segments;
        }

// are we dealing with an article or category that is attached to a menu item?
	if (($menuItem instanceof stdClass) && $menuItem->query['view'] == $query['view'] && isset($query['id']) && $menuItem->query['id'] == (int)$query['id']) {
		unset($query['view']);

if (isset($query['catid'])) {
			unset($query['catid']);
		}

if (isset($query['layout'])) {
                        unset($query['layout']);
                }

unset($query['id']);

return $segments;
	}

if ($view == 'category' || $view == 'book')
	{
		if (!$menuItemGiven) {
			$segments[] = $view;
		}

unset($query['view']);
		if ($view == 'book') {
			if (isset($query['id']) && isset($query['catid']) && $query['catid']) {
				$catid = $query['catid'];
				// Make sure we have the id and the alias
				if (strpos($query['id'], ':') === false) {
					$db = JFactory::getDbo();
					$aquery = $db->setQuery($db->getQuery(true)
						->select('alias')
						->from('#__abbook')
						->where('id='.(int)$query['id'])
					);
					$alias = $db->loadResult();
					if ($advanced){
						$query['id'] = $query['id'];
					}else{
						$query['id'] = $query['id'].':'.$alias;
					}
				}
			} else {
				// we should have these two set for this view.  If we don't, it is an error
				return $segments;
			}
                }else {
			if (isset($query['id'])) {
				$catid = $query['id'];
			} else {
				// we should have id set for this view.  If we don't, it is an error
				return $segments;
			}
		}

if ($menuItemGiven && isset($menuItem->query['id'])) {
			$mCatid = $menuItem->query['id'];
		} else {
			$mCatid = 0;
		}

$categories = JCategories::getInstance('Abook');
		$category = $categories->get($catid);

if (!$category) {
			// we couldn't find the category we were given.  Bail.
			return $segments;
		}

$path = array_reverse($category->getPath());

$array = array();

foreach($path as $id) {
			if ((int)$id == (int)$mCatid) {
				break;
			}

list($tmp, $id) = explode(':', $id, 2);

$array[] = $id;
		}

$array = array_reverse($array);

if (!$advanced && count($array)) {
			$array[0] = (int)$catid.':'.$array[0];
		//}else{
		//	$array[0] = $array[0];
		}

$segments = array_merge($segments, $array);

if ($view == 'book') {
			if ($advanced) {
				list($tmp, $id) = explode(':', $query['id'], 2);
			}
			else {
				$id = $query['id'];
			}
			$segments[] = $id;
		}
		unset($query['id']);
		unset($query['catid']);
	}

if ($view == 'author') {
		if (!$menuItemGiven){
			$segments[] =$query['view'];
		}
		if ($menuItem->query['view']!='authors'){
			$segments[] =$query['view'];
		}
			
                $segments[] =$query['id'];
                unset($query['view']);
                unset($query['id']);
	}

if ($view == 'tag') {
                if (!$menuItemGiven){
                        $segments[] =$query['view'];
                }
                if ($menuItem->query['view']!='tags'){
                        $segments[] =$query['view'];
                }
                        
                $segments[] =$query['id'];
                unset($query['view']);
                unset($query['id']);
        }

if ($view == 'search'){
        	unset($query['view']);
	}
	if ($view == 'authors'){
        	$segments[] = $view;
	        unset($query['view']);
	}
	// if the layout is specified and it is the same as the layout in the menu item, we
	// unset it so it doesn't go into the query string.
	if (isset($query['layout'])) {
		if ($menuItemGiven && isset($menuItem->query['layout'])) {
			if ($query['layout'] == $menuItem->query['layout']) {

unset($query['layout']);
			}
		}
		else {
			if ($query['layout'] == 'default') {
				unset($query['layout']);
			}
		}
	}
	return $segments;
}

/**
 * Parse the segments of a URL.
 *
 * @param	array	The segments of the URL to parse.
 *
 * @return	array	The URL attributes to be used by the application.
 * @since	1.5
 */
function AbookParseRoute($segments)
{
	$vars = array();

//Get the active menu item.
	$app	= JFactory::getApplication();
	$menu	= $app->getMenu();
	$item	= $menu->getActive();
	$params = JComponentHelper::getParams('com_abook');
	$advanced = $params->get('sef_advanced_link', 0);
	$db = JFactory::getDBO();

// Count route segments
	$count = count($segments);

// Standard routing for articles.  If we don't pick up an Itemid then we get the view from the segments
	// the first segment is the view and the last segment is the id of the article or category.
	if (!isset($item)) {
		$vars['view']	= $segments[0];
		$vars['id']		= $segments[$count - 1];

return $vars;
	}

switch ($item->query['view']){
		case 'tags':
			if ($count == 2){
                                $vars['view'] = 'book';
                                $catid = explode(':', $segments[0]);
                                $vars['catid'] = (int) $catid[0];
				$id = explode(':', $segments[1]);
                                $vars['id'] = (int) $id[0];
                        }
                	if ($count == 1){
                        	$vars['view'] = 'tag';
				$id = explode(':', $segments[0]);
                       		$vars['id'] = (int) $id[0];
                       	}
                       	if ($count == 0){
                               $vars['view'] = 'tags';
                       	}
			return $vars;
			break;
		case 'authors':
			if ($count == 1){
                               	$vars['view'] = 'author';
                                $id = explode(':', $segments[0]);
                       		$vars['id'] = (int) $id[0];

}
                       	if ($count == 0){
                        	$vars['view'] = 'authors';
                       	}
                        return $vars;
                       	break;
	}
	// if there is only one segment, then it points to either an article or a category
	// we test it first to see if it is a category.  If the id and alias match a category
	// then we assume it is a category.  If they don't we assume it is an article
	if ($count == 1) {
		if ($segments[0]=='search'){
			$vars['view']=$segments[0];
			return $vars;
		}

// we check to see if an alias is given.  If not, we assume it is an article
		if (strpos($segments[0], ':') === false) {
			$vars['view'] = 'book';
			$vars['id'] = (int)$segments[0];
			return $vars;
		}

list($id, $alias) = explode(':', $segments[0], 2);

// first we check if it is a category
		$category = JCategories::getInstance('Abook')->get($id);

if ($category && $category->alias == $alias) {
			$vars['view'] = 'category';
			$vars['id'] = $id;

return $vars;
		} else {
			$query = 'SELECT alias, catid FROM #__abbook WHERE id = '.(int)$id;
			$db->setQuery($query);
			$article = $db->loadObject();

if ($article) {
				if ($article->alias == $alias) {
					$vars['view'] = 'book';
					$vars['catid'] = (int)$article->catid;
					$vars['id'] = (int)$id;

return $vars;
				}
			}
		}
	}

// if there was more than one segment, then we can determine where the URL points to
	// because the first segment will have the target category id prepended to it.  If the
	// last segment has a number prepended, it is an article, otherwise, it is a category.
	if (!$advanced) {
		if ($segments[0]=="author"){
                	$vars['view'] = 'author';
                	$vars['id']             = (int)$segments[$count - 1];
			return $vars;
                }
		if ($segments[0]=="tag"){
                        $vars['view'] = 'tag';
                        $vars['id']             = (int)$segments[$count - 1];
                        return $vars;
                }

$cat_id = (int)$segments[0];

$article_id = (int)$segments[$count - 1];

if ($article_id > 0) {
			$vars['view'] = 'book';
			$vars['catid'] = $cat_id;
			$vars['id'] = $article_id;
		} else {
			$vars['view'] = 'category';
			$vars['id'] = $cat_id;
		}

return $vars;
	}

// we get the category id from the menu item and search from there
	$id = $item->query['id'];
	$category = JCategories::getInstance('Abook')->get($id);

if (!$category) {
		throw new Exception(JText::_('COM_CONTENT_ERROR_PARENT_CATEGORY_NOT_FOUND'), 404);
		return $vars;
	}

$categories = $category->getChildren();
	$vars['catid'] = $id;
	$vars['id'] = $id;
	$found = 0;

foreach($segments as $segment)
	{
		$segment = str_replace(':', '-',$segment);

foreach($categories as $category)
		{
			if ($category->alias == $segment) {
				$vars['id'] = $category->id;
				$vars['catid'] = $category->id;
				$vars['view'] = 'category';
				$categories = $category->getChildren();
				$found = 1;
				break;
			}
		}

if ($found == 0) {
			if ($advanced) {
				$db = JFactory::getDbo();
                                $query = $db->getQuery(true);
				$query->select("id");
				$query->from("#__abbook");
				$query->where('catid = '.$vars['catid'].' AND alias = '.$db->quote($segment));
				$db->setQuery($query);
				$cid = $db->loadResult();
			} else {
				$cid = $segment;
			}

$vars['id'] = $cid;

if ($item->query['view'] == 'archive' && $count != 1){
				$vars['year']	= $count >= 2 ? $segments[$count-2] : null;
				$vars['month'] = $segments[$count-1];
				$vars['view']	= 'archive';
			}
			else {
				$vars['view'] = 'book';
			}
		}

$found = 0;
	}
	return $vars;
}