From 8120842780319089f47144acf82685163237b8bc Mon Sep 17 00:00:00 2001
From: James Walker <walkah@walkah.net>
Date: Mon, 2 Aug 2010 16:42:28 -0400
Subject: [PATCH] Fix for #2429 - move OStatus XML writing to XMLStringer

---
 plugins/OStatus/lib/magicenvelope.php | 28 ++++-----
 plugins/OStatus/lib/xrd.php           | 86 +++++++++------------------
 2 files changed, 40 insertions(+), 74 deletions(-)

diff --git a/plugins/OStatus/lib/magicenvelope.php b/plugins/OStatus/lib/magicenvelope.php
index f39686b717..3bdf24b317 100644
--- a/plugins/OStatus/lib/magicenvelope.php
+++ b/plugins/OStatus/lib/magicenvelope.php
@@ -97,24 +97,18 @@ class MagicEnvelope
     }
 
     public function toXML($env) {
-        $dom = new DOMDocument();
-
-        $envelope = $dom->createElementNS(MagicEnvelope::NS, 'me:env');
-        $envelope->setAttribute('xmlns:me', MagicEnvelope::NS);
-        $data = $dom->createElementNS(MagicEnvelope::NS, 'me:data', $env['data']);
-        $data->setAttribute('type', $env['data_type']);
-        $envelope->appendChild($data);
-        $enc = $dom->createElementNS(MagicEnvelope::NS, 'me:encoding', $env['encoding']);
-        $envelope->appendChild($enc);
-        $alg = $dom->createElementNS(MagicEnvelope::NS, 'me:alg', $env['alg']);
-        $envelope->appendChild($alg);
-        $sig = $dom->createElementNS(MagicEnvelope::NS, 'me:sig', $env['sig']);
-        $envelope->appendChild($sig);
-
-        $dom->appendChild($envelope);
+        $xs = new XMLStringer();
+        $xs->startXML();
+        $xs->elementStart('me:env', array('xmlns:me' => MagicEnvelope::NS));
+        $xs->element('me:data', array('type' => $env['data_type']), $env['data']);
+        $xs->element('me:encoding', null, $env['encoding']);
+        $xs->element('me:alg', null, $env['alg']);
+        $xs->element('me:sig', null, $env['sig']);
+        $xs->elementEnd('me:env');
         
-        
-        return $dom->saveXML();
+        $string =  $xs->getString();
+        common_debug($string);
+        return $string;
     }
 
     
diff --git a/plugins/OStatus/lib/xrd.php b/plugins/OStatus/lib/xrd.php
index 34b28790b7..a10b9f4272 100644
--- a/plugins/OStatus/lib/xrd.php
+++ b/plugins/OStatus/lib/xrd.php
@@ -106,44 +106,43 @@ class XRD
 
     public function toXML()
     {
-        $dom = new DOMDocument('1.0', 'UTF-8');
-        $dom->formatOutput = true;
-        
-        $xrd_dom = $dom->createElementNS(XRD::XRD_NS, 'XRD');
-        $dom->appendChild($xrd_dom);
+        $xs = new XMLStringer();
+
+        $xs->startXML();
+        $xs->elementStart('XRD', array('xmlns' => XRD::XRD_NS));
 
         if ($this->host) {
-            $host_dom = $dom->createElement('hm:Host', $this->host);
-            $xrd_dom->setAttributeNS(XRD::XML_NS, 'xmlns:hm', XRD::HOST_META_NS);
-            $xrd_dom->appendChild($host_dom);
+            $xs->element('hm:Host', array('xmlns:hm' => XRD::HOST_META_NS), $this->host);
         }
         
-		if ($this->expires) {
-			$expires_dom = $dom->createElement('Expires', $this->expires);
-			$xrd_dom->appendChild($expires_dom);
-		}
+        if ($this->expires) {
+            $xs->element('Expires', null, $this->expires);
+        }
 
-		if ($this->subject) {
-			$subject_dom = $dom->createElement('Subject', $this->subject);
-			$xrd_dom->appendChild($subject_dom);
-		}
+        if ($this->subject) {
+            $xs->element('Subject', null, $this->subject);
+        }
 
-		foreach ($this->alias as $alias) {
-			$alias_dom = $dom->createElement('Alias', $alias);
-			$xrd_dom->appendChild($alias_dom);
-		}
+        foreach ($this->alias as $alias) {
+            $xs->element('Alias', null, $alias);
+        }
 
-		foreach ($this->types as $type) {
-			$type_dom = $dom->createElement('Type', $type);
-			$xrd_dom->appendChild($type_dom);
-		}
+        foreach ($this->links as $link) {
+            $titles = array();
+            if (isset($link['title'])) {
+                $titles = $link['title'];
+                unset($link['title']);
+            }
+            $xs->elementStart('Link', $link);
+            foreach ($titles as $title) {
+                $xs->element('Title', null, $title);
+            }
+            $xs->elementEnd('Link');
+        }
+        
+        $xs->elementEnd('XRD');
 
-		foreach ($this->links as $link) {
-			$link_dom = $this->saveLink($dom, $link);
-			$xrd_dom->appendChild($link_dom);
-		}
-
-        return $dom->saveXML();
+        return $xs->getString();
     }
 
     function parseType($element)
@@ -169,32 +168,5 @@ class XRD
 
         return $link;
     }
-
-    function saveLink($doc, $link)
-    {
-        $link_element = $doc->createElement('Link');
-        if (!empty($link['rel'])) {
-            $link_element->setAttribute('rel', $link['rel']);
-        }
-        if (!empty($link['type'])) {
-            $link_element->setAttribute('type', $link['type']);
-        }
-        if (!empty($link['href'])) {
-            $link_element->setAttribute('href', $link['href']);
-        }
-        if (!empty($link['template'])) {
-            $link_element->setAttribute('template', $link['template']);
-        }
-
-        if (!empty($link['title']) && is_array($link['title'])) {
-            foreach($link['title'] as $title) {
-                $title = $doc->createElement('Title', $title);
-                $link_element->appendChild($title);
-            }
-        }
-
-        
-        return $link_element;
-    }
 }