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Path: /data/applications/aps/tikiwiki/7.0-0/standard/htdocs/lib/smarty_tiki/ [ Home ]
File: function.object_link.php
<?php
// (c) Copyright 2002-2011 by authors of the Tiki Wiki CMS Groupware Project
// 
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id: function.object_link.php 33809 2011-04-04 12:55:40Z lphuberdeau $

//this script may only be included - so its better to die if called directly.
if (strpos($_SERVER["SCRIPT_NAME"],basename(__FILE__)) !== false) {
  header("location: index.php");
  exit;         
}  

function smarty_function_object_link( $params, $smarty ) {

	if( ! isset( $params['type'], $params['id'] ) ) {
		return tra('No object information provided.');
	}

	$type = $params['type'];
	$object = $params['id'];
	$title = isset( $params['title'] ) ? $params['title'] : null;
	$url = isset( $params['url'] ) ? $params['url'] : null;

	switch( $type ) {
	case 'wiki page':
	case 'wikipage':
	case 'wiki':
		$type = 'wiki page';
		$function = 'smarty_function_object_link_default';
		if (! $title) {
			$title = $object;
		}
		break;
	case 'user':
		$function = 'smarty_function_object_link_user';
		break;
	case 'external':
		$function = 'smarty_function_object_link_external';
		break;
	case 'relation_source':
		$function = 'smarty_function_object_link_relation_source';
		break;
	case 'relation_target':
		$function = 'smarty_function_object_link_relation_target';
		break;
	default:
		$function = 'smarty_function_object_link_default';
		break;
	}

	return $function( $smarty, $object, $title, $type, $url );
}

function smarty_function_object_link_default( $smarty, $object, $title = null, $type = 'wiki', $url = null ) {
	require_once 'lib/smarty_tiki/modifier.sefurl.php';

	if (! function_exists('smarty_modifier_escape')) {
		require_once 'lib/smarty_tiki/modifier.escape.php';
	}

	$escapedPage = smarty_modifier_escape( $title ? $title : tra('No title specified') );

	if ($url) {
		$escapedHref = smarty_modifier_escape( $url );
	} else {
		$escapedHref = smarty_modifier_escape( smarty_modifier_sefurl( $object, $type ) );
	}

	$class = '';
	$metadata = '';

	if ($coordinates = TikiLib::lib('geo')->get_coordinates($type, $object)) {
		$class = ' class="geolocated"';
		$metadata = " data-geo-lat=\"{$coordinates['lat']}\" data-geo-lon=\"{$coordinates['lon']}\"";
		
		if (isset($coordinates['zoom'])) {
			$metadata .= " data-geo-zoom=\"{$coordinates['zoom']}\"";
		}
	}
	
	if ( $type == "blog post" )
		$class = ' class="link"';

	return '<a href="' . $escapedHref . '"' . $class . $metadata . '>' . $escapedPage . '</a>';
}

function smarty_function_object_link_user( $smarty, $user, $title = null ) {
	require_once 'lib/smarty_tiki/modifier.userlink.php';

	return smarty_modifier_userlink( $user, 'link', 'not_set', $title ? $title : '' );
}

function smarty_function_object_link_external( $smarty, $link, $title = null ) {
	global $cachelib; require_once 'lib/cache/cachelib.php';
	global $tikilib;

	if (substr($link, 0, 4) === 'www.') {
		$link = 'http://' . $link;
	}

	if( ! $title ) {
		if( ! $title = $cachelib->getCached( $link, 'object_link_ext_title' ) ) {
			$body = $tikilib->httprequest( $link );
			if( preg_match( '|<title>(.+)</title>|', $body, $parts ) ) {
				$title = TikiFilter::get('text')->filter($parts[1]);
			} else {
				$title = $link;
			}

			$cachelib->cacheItem( $link, $title, 'object_link_ext_title' );
		}
	}

	require_once 'lib/smarty_tiki/modifier.escape.php';
	$escapedHref = smarty_modifier_escape( $link );
	$escapedTitle = smarty_modifier_escape( $title );
	$data = '<a href="' . $escapedHref . '">' . $escapedTitle . '</a>';

	return $data;
}

function smarty_function_object_link_relation_source( $smarty, $relationId, $title = null ) {
	return smarty_function_object_link_relation_end( $smarty, 'source', $relationId, $title );
}

function smarty_function_object_link_relation_target( $smarty, $relationId, $title = null ) {
	return smarty_function_object_link_relation_end( $smarty, 'target', $relationId, $title );
}

function smarty_function_object_link_relation_end( $smarty, $end, $relationId, $title = null ) {
	global $relationlib; require_once 'lib/attributes/relationlib.php';
	global $attributelib; require_once 'lib/attributes/attributelib.php';
	global $cachelib; require_once 'lib/cache/cachelib.php';

	$cacheKey = "$relationId:$end:$title";

	if( ! $out = $cachelib->getCached( $cacheKey, 'relation_link' ) ) {
		$relation = $relationlib->get_relation( $relationId );

		if( $relation ) {
			if( ! $title ) {
				$attributes = $attributelib->get_attributes( 'relation', $relationId );
				$key = 'tiki.relation.' . $end;

				if( isset( $attributes[$key] ) && ! empty( $attributes[$key] ) ) {
					$title = $attributes[$key];
				}
			}

			$type = $relation[ $end . '_type' ];
			$object = $relation[ $end . '_itemId' ];

			$out = smarty_function_object_link( array(
				'type' => $type,
				'id' => $object,
				'title' => $title,
			), $smarty );

			$cachelib->cacheItem( $cacheKey, $out, 'relation_link' );
		} else {
			$out = tra('Relation not found.');
		}
	}

	return $out;
}