Implemented WebFinger and replaced our XRD with PEAR XML_XRD

[quix0rs-gnu-social.git] / plugins / LRDD / extlib / XML / XRD / Loader / XML.php

diff --git a/plugins/LRDD/extlib/XML/XRD/Loader/XML.php b/plugins/LRDD/extlib/XML/XRD/Loader/XML.php
new file mode 100644 (file)
index 0000000..30b3255
--- /dev/null
+++ b/plugins/LRDD/extlib/XML/XRD/Loader/XML.php
@@ -0,0 +1,218 @@
+<?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 an XML 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_XML
+{
+    /**
+     * Data storage the XML data get loaded into
+     *
+     * @var XML_XRD
+     */
+    protected $xrd;
+
+    /**
+     * XRD 1.0 namespace
+     */
+    const NS_XRD = 'http://docs.oasis-open.org/ns/xri/xrd-1.0';
+
+
+
+    /**
+     * Init object with xrd object
+     *
+     * @param XML_XRD $xrd Data storage the XML data get loaded into
+     */
+    public function __construct(XML_XRD $xrd)
+    {
+        $this->xrd = $xrd;
+    }
+
+    /**
+     * Loads the contents of the given file
+     *
+     * @param string $file Path to an XRD file
+     *
+     * @return void
+     *
+     * @throws XML_XRD_Loader_Exception When the XML is invalid or cannot be
+     *                                   loaded
+     */
+    public function loadFile($file)
+    {
+        $old = libxml_use_internal_errors(true);
+        $x = simplexml_load_file($file);
+        libxml_use_internal_errors($old);
+        if ($x === false) {
+            throw new XML_XRD_Loader_Exception(
+                'Error loading XML file: ' . libxml_get_last_error()->message,
+                XML_XRD_Loader_Exception::LOAD
+            );
+        }
+        return $this->load($x);
+    }
+
+    /**
+     * Loads the contents of the given string
+     *
+     * @param string $xml XML string
+     *
+     * @return void
+     *
+     * @throws XML_XRD_Loader_Exception When the XML is invalid or cannot be
+     *                                   loaded
+     */
+    public function loadString($xml)
+    {
+        if ($xml == '') {
+            throw new XML_XRD_Loader_Exception(
+                'Error loading XML string: string empty',
+                XML_XRD_Loader_Exception::LOAD
+            );
+        }
+        $old = libxml_use_internal_errors(true);
+        $x = simplexml_load_string($xml);
+        libxml_use_internal_errors($old);
+        if ($x === false) {
+            throw new XML_XRD_Loader_Exception(
+                'Error loading XML string: ' . libxml_get_last_error()->message,
+                XML_XRD_Loader_Exception::LOAD
+            );
+        }
+        return $this->load($x);
+    }
+
+    /**
+     * Loads the XML element into the classes' data structures
+     *
+     * @param object $x XML element containing the whole XRD document
+     *
+     * @return void
+     *
+     * @throws XML_XRD_Loader_Exception When the XML is invalid
+     */
+    public function load(SimpleXMLElement $x)
+    {
+        $ns = $x->getDocNamespaces();
+        if ($ns[''] !== self::NS_XRD) {
+            throw new XML_XRD_Loader_Exception(
+                'Wrong document namespace', XML_XRD_Loader_Exception::DOC_NS
+            );
+        }
+        if ($x->getName() != 'XRD') {
+            throw new XML_XRD_Loader_Exception(
+                'XML root element is not "XRD"', XML_XRD_Loader_Exception::DOC_ROOT
+            );
+        }
+
+        if (isset($x->Subject)) {
+            $this->xrd->subject = (string)$x->Subject;
+        }
+        foreach ($x->Alias as $xAlias) {
+            $this->xrd->aliases[] = (string)$xAlias;
+        }
+
+        foreach ($x->Link as $xLink) {
+            $this->xrd->links[] = $this->loadLink($xLink);
+        }
+
+        $this->loadProperties($this->xrd, $x);
+
+        if (isset($x->Expires)) {
+            $this->xrd->expires = strtotime($x->Expires);
+        }
+
+        $xmlAttrs = $x->attributes('http://www.w3.org/XML/1998/namespace');
+        if (isset($xmlAttrs['id'])) {
+            $this->xrd->id = (string)$xmlAttrs['id'];
+        }
+    }
+
+    /**
+     * Loads the Property elements from XML
+     *
+     * @param object $store Data store where the properties get stored
+     * @param object $x     XML element
+     *
+     * @return boolean True when all went well
+     */
+    protected function loadProperties(
+        XML_XRD_PropertyAccess $store, SimpleXMLElement $x
+    ) {
+        foreach ($x->Property as $xProp) {
+            $store->properties[] = $this->loadProperty($xProp);
+        }
+    }
+
+    /**
+     * Create a link element object from XML element
+     *
+     * @param object $x XML link element
+     *
+     * @return XML_XRD_Element_Link Created link object
+     */
+    protected function loadLink(SimpleXMLElement $x)
+    {
+        $link = new XML_XRD_Element_Link();
+        foreach (array('rel', 'type', 'href', 'template') as $var) {
+            if (isset($x[$var])) {
+                $link->$var = (string)$x[$var];
+            }
+        }
+
+        foreach ($x->Title as $xTitle) {
+            $xmlAttrs = $xTitle->attributes('http://www.w3.org/XML/1998/namespace');
+            $lang = '';
+            if (isset($xmlAttrs['lang'])) {
+                $lang = (string)$xmlAttrs['lang'];
+            }
+            if (!isset($link->titles[$lang])) {
+                $link->titles[$lang] = (string)$xTitle;
+            }
+        }
+        $this->loadProperties($link, $x);
+
+        return $link;
+    }
+
+    /**
+     * Create a property element object from XML element
+     *
+     * @param object $x XML property element
+     *
+     * @return XML_XRD_Element_Property Created link object
+     */
+    protected function loadProperty(SimpleXMLElement $x)
+    {
+        $prop = new XML_XRD_Element_Property();
+        if (isset($x['type'])) {
+            $prop->type = (string)$x['type'];
+        }
+        $s = (string)$x;
+        if ($s != '') {
+            $prop->value = $s;
+        }
+
+        return $prop;
+    }
+}
+?>