forked from GNUsocial/gnu-social
188 lines
4.7 KiB
PHP
188 lines
4.7 KiB
PHP
|
<?php
|
||
|
/**
|
||
|
* Part of XML_XRD
|
||
|
*
|
||
|
* PHP version 5
|
||
|
*
|
||
|
* @category XML
|
||
|
* @package XML_XRD
|
||
|
* @author Christian Weiske <cweiske@php.net>
|
||
|
* @license http://www.gnu.org/copyleft/lesser.html LGPL
|
||
|
* @link http://pear.php.net/package/XML_XRD
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* Loads XRD data from a JSON file
|
||
|
*
|
||
|
* @category XML
|
||
|
* @package XML_XRD
|
||
|
* @author Christian Weiske <cweiske@php.net>
|
||
|
* @license http://www.gnu.org/copyleft/lesser.html LGPL
|
||
|
* @version Release: @package_version@
|
||
|
* @link http://pear.php.net/package/XML_XRD
|
||
|
*/
|
||
|
class XML_XRD_Loader_JSON
|
||
|
{
|
||
|
/**
|
||
|
* Data storage the XML data get loaded into
|
||
|
*
|
||
|
* @var XML_XRD
|
||
|
*/
|
||
|
protected $xrd;
|
||
|
|
||
|
|
||
|
|
||
|
/**
|
||
|
* Init object with xrd object
|
||
|
*
|
||
|
* @param XML_XRD $xrd Data storage the JSON data get loaded into
|
||
|
*/
|
||
|
public function __construct(XML_XRD $xrd)
|
||
|
{
|
||
|
$this->xrd = $xrd;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Loads the contents of the given file
|
||
|
*
|
||
|
* @param string $file Path to an JRD file
|
||
|
*
|
||
|
* @return void
|
||
|
*
|
||
|
* @throws XML_XRD_Loader_Exception When the JSON is invalid or cannot be
|
||
|
* loaded
|
||
|
*/
|
||
|
public function loadFile($file)
|
||
|
{
|
||
|
$json = file_get_contents($file);
|
||
|
if ($json === false) {
|
||
|
throw new XML_XRD_Loader_Exception(
|
||
|
'Error loading JRD file: ' . $file,
|
||
|
XML_XRD_Loader_Exception::LOAD
|
||
|
);
|
||
|
}
|
||
|
return $this->loadString($json);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Loads the contents of the given string
|
||
|
*
|
||
|
* @param string $json JSON string
|
||
|
*
|
||
|
* @return void
|
||
|
*
|
||
|
* @throws XML_XRD_Loader_Exception When the JSON is invalid or cannot be
|
||
|
* loaded
|
||
|
*/
|
||
|
public function loadString($json)
|
||
|
{
|
||
|
if ($json == '') {
|
||
|
throw new XML_XRD_Loader_Exception(
|
||
|
'Error loading JRD: string empty',
|
||
|
XML_XRD_Loader_Exception::LOAD
|
||
|
);
|
||
|
}
|
||
|
|
||
|
$obj = json_decode($json);
|
||
|
if ($obj !== null) {
|
||
|
return $this->load($obj);
|
||
|
}
|
||
|
|
||
|
$constants = get_defined_constants(true);
|
||
|
$json_errors = array();
|
||
|
foreach ($constants['json'] as $name => $value) {
|
||
|
if (!strncmp($name, 'JSON_ERROR_', 11)) {
|
||
|
$json_errors[$value] = $name;
|
||
|
}
|
||
|
}
|
||
|
throw new XML_XRD_Loader_Exception(
|
||
|
'Error loading JRD: ' . $json_errors[json_last_error()],
|
||
|
XML_XRD_Loader_Exception::LOAD
|
||
|
);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Loads the JSON object into the classes' data structures
|
||
|
*
|
||
|
* @param object $j JSON object containing the whole JSON document
|
||
|
*
|
||
|
* @return void
|
||
|
*/
|
||
|
public function load(stdClass $j)
|
||
|
{
|
||
|
if (isset($j->subject)) {
|
||
|
$this->xrd->subject = (string)$j->subject;
|
||
|
}
|
||
|
if (isset($j->aliases)) {
|
||
|
foreach ($j->aliases as $jAlias) {
|
||
|
$this->xrd->aliases[] = (string)$jAlias;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (isset($j->links)) {
|
||
|
foreach ($j->links as $jLink) {
|
||
|
$this->xrd->links[] = $this->loadLink($jLink);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$this->loadProperties($this->xrd, $j);
|
||
|
|
||
|
if (isset($j->expires)) {
|
||
|
$this->xrd->expires = strtotime($j->expires);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Loads the Property elements from XML
|
||
|
*
|
||
|
* @param object $store Data store where the properties get stored
|
||
|
* @param object $j JSON element with "properties" variable
|
||
|
*
|
||
|
* @return boolean True when all went well
|
||
|
*/
|
||
|
protected function loadProperties(
|
||
|
XML_XRD_PropertyAccess $store, stdClass $j
|
||
|
) {
|
||
|
if (!isset($j->properties)) {
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
foreach ($j->properties as $type => $jProp) {
|
||
|
$store->properties[] = new XML_XRD_Element_Property(
|
||
|
$type, (string)$jProp
|
||
|
);
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Create a link element object from XML element
|
||
|
*
|
||
|
* @param object $j JSON link object
|
||
|
*
|
||
|
* @return XML_XRD_Element_Link Created link object
|
||
|
*/
|
||
|
protected function loadLink(stdClass $j)
|
||
|
{
|
||
|
$link = new XML_XRD_Element_Link();
|
||
|
foreach (array('rel', 'type', 'href', 'template') as $var) {
|
||
|
if (isset($j->$var)) {
|
||
|
$link->$var = (string)$j->$var;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (isset($j->titles)) {
|
||
|
foreach ($j->titles as $lang => $jTitle) {
|
||
|
if (!isset($link->titles[$lang])) {
|
||
|
$link->titles[$lang] = (string)$jTitle;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
$this->loadProperties($link, $j);
|
||
|
|
||
|
return $link;
|
||
|
}
|
||
|
}
|
||
|
?>
|