1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 <?php
/*-----8<--------------------------------------------------------------------
*
* BEdita - a semantic content management framework
*
* Copyright 2009 ChannelWeb Srl, Chialab Srl
*
* This file is part of BEdita: 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.
* BEdita is distributed 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
* version 3 along with BEdita (see LICENSE.LGPL).
* If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
*
*------------------------------------------------------------------->8-----
*/
App::import('Core', 'Helper');
/**
* Helper base class
* contains common helpers methods
*/
class AppHelper extends Helper {
/**
* try to get from the registry the helper instance. Eventually instance a new helper object ant put
* it in the registry
* @param $name, helper name without suffix Helper (i.e. GravatarHelper => $name=Gravatar)
* @return $nameHelper instance
*/
public function getHelper($name) {
$helper = $name . 'Helper';
if (!$helperObject = ClassRegistry::getObject($helper)) {
if (!class_exists($helper)) {
if (!App::import("Helper", $name)) {
return false;
}
}
$helperObject = new $helper();
/* copy class attributes to new helper instance
* see file cake/libs/view/view.php
* class View
* method _loadHelpers
* line 809
*/
$vars = array('base', 'webroot', 'here', 'params',
'action', 'data', 'theme', 'plugin');
$c = count($vars);
for ($j = 0; $j < $c; $j++) {
$helperObject->{$vars[$j]} = $this->{$vars[$j]};
}
ClassRegistry::addObject($helper, $helperObject);
if (!empty($helperObject->helpers)) {
foreach ($helperObject->helpers as $subHelper) {
$helperObject->{$subHelper} = $this->getHelper($subHelper);
}
}
}
return $helperObject;
}
/**
* return oEmbed format (see http://www.oembed.com)
*
* @param $url, URL on third party sites
* @param $arrayFrom, specify which format is expected (json, xml) to build array in the right way
* if != "json" and != "xml" return original oEmbed format (i.e. JSON object or XML)
* @return array
*/
protected function oEmbedInfo($url, $arrayFrom = 'json') {
if (!$oEmbedInfo = file_get_contents($url)) {
return false;
}
if ($arrayFrom == 'json') {
$oEmbedInfo = (json_decode($oEmbedInfo,true));
} elseif ($arrayFrom == 'xml') {
$xml = ClassRegistry::init('Xml', 'Core');
$xml->load($oEmbedInfo);
$oEmbedInfo = Set::reverse($xml);
$oEmbedInfo = $oEmbedInfo['Oembed'];
}
return $oEmbedInfo;
}
}