forked from GNUsocial/gnu-social
137 lines
3.9 KiB
PHP
137 lines
3.9 KiB
PHP
<?php
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/**
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* Part of XML_XRD
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*
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* PHP version 5
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*
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* @category XML
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* @package XML_XRD
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* @author Christian Weiske <cweiske@php.net>
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @link http://pear.php.net/package/XML_XRD
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*/
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/**
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* Generate XML from a XML_XRD object.
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*
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* @category XML
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* @package XML_XRD
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* @author Christian Weiske <cweiske@php.net>
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version Release: @package_version@
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* @link http://pear.php.net/package/XML_XRD
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*/
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class XML_XRD_Serializer_XML
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{
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protected $xrd;
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/**
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* Create new instance
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*
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* @param XML_XRD $xrd XRD instance to convert to XML
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*/
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public function __construct(XML_XRD $xrd)
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{
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$this->xrd = $xrd;
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}
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/**
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* Generate XML.
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*
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* @return string Full XML code
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*/
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public function __toString()
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{
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$hasXsi = false;
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$x = new XMLWriter();
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$x->openMemory();
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//no encoding means UTF-8
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//http://www.w3.org/TR/2008/REC-xml-20081126/#sec-guessing-no-ext-info
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$x->startDocument('1.0', 'UTF-8');
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$x->setIndent(true);
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$x->startElement('XRD');
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$x->writeAttribute('xmlns', 'http://docs.oasis-open.org/ns/xri/xrd-1.0');
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$x->writeAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
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if ($this->xrd->id) {
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$x->writeAttribute('xml:id', $this->xrd->id);
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}
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if ($this->xrd->expires !== null) {
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$x->writeElement(
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'Expires', gmdate('Y-m-d\TH:i:s\Z', $this->xrd->expires)
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);
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}
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if ($this->xrd->subject !== null) {
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$x->writeElement('Subject', $this->xrd->subject);
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}
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foreach ($this->xrd->aliases as $alias) {
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$x->writeElement('Alias', $alias);
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}
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foreach ($this->xrd->properties as $property) {
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$this->writeProperty($x, $property, $hasXsi);
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}
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foreach ($this->xrd->links as $link) {
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$x->startElement('Link');
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$x->writeAttribute('rel', $link->rel);
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if ($link->type !== null) {
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$x->writeAttribute('type', $link->type);
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}
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if ($link->href !== null) {
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$x->writeAttribute('href', $link->href);
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}
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//template only when no href
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if ($link->template !== null && $link->href === null) {
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$x->writeAttribute('template', $link->template);
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}
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foreach ($link->titles as $lang => $value) {
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$x->startElement('Title');
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if ($lang) {
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$x->writeAttribute('xml:lang', $lang);
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}
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$x->text($value);
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$x->endElement();
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}
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foreach ($link->properties as $property) {
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$this->writeProperty($x, $property, $hasXsi);
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}
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$x->endElement();
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}
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$x->endElement();
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$x->endDocument();
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$s = $x->flush();
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if (!$hasXsi) {
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$s = str_replace(
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' xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"', '', $s
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);
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}
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return $s;
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}
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/**
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* Write a property in the XMLWriter stream output
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*
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* @param XMLWriter $x Writer object to write to
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* @param XML_XRD_Element_Property $property Property to write
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* @param boolean &$hasXsi If an xsi: attribute is used
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*
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* @return void
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*/
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protected function writeProperty(
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XMLWriter $x, XML_XRD_Element_Property $property, &$hasXsi
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) {
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$x->startElement('Property');
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$x->writeAttribute('type', $property->type);
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if ($property->value === null) {
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$x->writeAttribute('xsi:nil', 'true');
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$hasXsi = true;
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} else {
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$x->text($property->value);
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}
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$x->endElement();
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}
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}
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?>
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