document and default for site|ssllogo

[quix0rs-gnu-social.git] / lib / attachmentlist.php

diff --git a/lib/attachmentlist.php b/lib/attachmentlist.php
index fe38281af92b94e52924a36ffece8cf82824e65a..f6b09fb49182153d568bca81cad4014314649cc2 100644 (file)
--- a/lib/attachmentlist.php
+++ b/lib/attachmentlist.php
@@ -49,7 +49,6 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
  * @see      NoticeListItem
  * @see      ProfileNoticeList
  */
-
 class AttachmentList extends Widget
 {
     /** the current stream of notices being displayed. */
@@ -61,7 +60,6 @@ class AttachmentList extends Widget
      *
      * @param Notice $notice stream of notices from DB_DataObject
      */
-
     function __construct($notice, $out=null)
     {
         parent::__construct($out);
@@ -76,7 +74,6 @@ class AttachmentList extends Widget
      *
      * @return int count of notices listed.
      */
-
     function show()
     {
         $atts = new File;
@@ -84,6 +81,7 @@ class AttachmentList extends Widget
         if (empty($att)) return 0;
         $this->out->elementStart('dl', array('id' =>'attachments',
                                              'class' => 'entry-content'));
+        // TRANS: DT element label in attachment list.
         $this->out->element('dt', null, _('Attachments'));
         $this->out->elementStart('dd');
         $this->out->elementStart('ol', array('class' => 'attachments'));
@@ -110,7 +108,6 @@ class AttachmentList extends Widget
      *
      * @return NoticeListItem a list item for displaying the notice
      */
-
     function newListItem($attachment)
     {
         return new AttachmentListItem($attachment, $this->out);
@@ -134,7 +131,6 @@ class AttachmentList extends Widget
  * @see      NoticeList
  * @see      ProfileNoticeListItem
  */
-
 class AttachmentListItem extends Widget
 {
     /** The attachment this item will show. */
@@ -150,7 +146,6 @@ class AttachmentListItem extends Widget
      *
      * @param Notice $notice The notice we'll display
      */
-
     function __construct($attachment, $out=null)
     {
         parent::__construct($out);
@@ -184,7 +179,6 @@ class AttachmentListItem extends Widget
      *
      * @return void
      */
-
     function show()
     {
         $this->showStart();
@@ -220,7 +214,6 @@ class AttachmentListItem extends Widget
      *
      * @return void
      */
-
     function showStart()
     {
         // XXX: RDFa
@@ -235,7 +228,6 @@ class AttachmentListItem extends Widget
      *
      * @return void
      */
-
     function showEnd()
     {
         $this->out->elementEnd('li');
@@ -248,9 +240,7 @@ class Attachment extends AttachmentListItem
         $this->out->elementStart('div', array('id' => 'attachment_view',
                                               'class' => 'hentry'));
         $this->out->elementStart('div', 'entry-title');
-        $this->out->elementStart('a', $this->linkAttr());
-        $this->out->element('span', null, $this->linkTitle());
-        $this->out->elementEnd('a');
+        $this->out->element('a', $this->linkAttr(), $this->linkTitle());
         $this->out->elementEnd('div');
 
         $this->out->elementStart('div', 'entry-content');
@@ -258,10 +248,11 @@ class Attachment extends AttachmentListItem
         $this->out->elementEnd('div');
 
         if (!empty($this->oembed->author_name) || !empty($this->oembed->provider)) {
-            $this->out->elementStart('div', array('id' => 'oembed_info', 
+            $this->out->elementStart('div', array('id' => 'oembed_info',
                                                   'class' => 'entry-content'));
             if (!empty($this->oembed->author_name)) {
                 $this->out->elementStart('dl', 'vcard author');
+                // TRANS: DT element label in attachment list item.
                 $this->out->element('dt', null, _('Author'));
                 $this->out->elementStart('dd', 'fn');
                 if (empty($this->oembed->author_url)) {
@@ -275,6 +266,7 @@ class Attachment extends AttachmentListItem
             }
             if (!empty($this->oembed->provider)) {
                 $this->out->elementStart('dl', 'vcard');
+                // TRANS: DT element label in attachment list item.
                 $this->out->element('dt', null, _('Provider'));
                 $this->out->elementStart('dd', 'fn');
                 if (empty($this->oembed->provider_url)) {
@@ -296,7 +288,7 @@ class Attachment extends AttachmentListItem
     }
 
     function linkAttr() {
-        return array('class' => 'external', 'href' => $this->attachment->url);
+        return array('rel' => 'external', 'href' => $this->attachment->url);
     }
 
     function linkTitle() {
@@ -332,6 +324,15 @@ class Attachment extends AttachmentListItem
                     $this->out->element('param', array('name' => 'autoStart', 'value' => 1));
                     $this->out->elementEnd('object');
                     break;
+
+                case 'text/html':
+                    if ($this->attachment->filename) {
+                        // Locally-uploaded HTML. Scrub and display inline.
+                        $this->showHtmlFile($this->attachment);
+                        break;
+                    }
+                    // Fall through to default.
+
                 default:
                     $this->showFallback();
                 }
@@ -361,6 +362,59 @@ class Attachment extends AttachmentListItem
         }
     }
 
+    protected function showHtmlFile(File $attachment)
+    {
+        $body = $this->scrubHtmlFile($attachment);
+        if ($body) {
+            $this->out->raw($body);
+        }
+    }
+
+    /**
+     * @return mixed false on failure, HTML fragment string on success
+     */
+    protected function scrubHtmlFile(File $attachment)
+    {
+        $path = File::path($attachment->filename);
+        if (!file_exists($path) || !is_readable($path)) {
+            common_log(LOG_ERR, "Missing local HTML attachment $path");
+            return false;
+        }
+        $raw = file_get_contents($path);
+
+        // Normalize...
+        $dom = new DOMDocument();
+        if(!$dom->loadHTML($raw)) {
+            common_log(LOG_ERR, "Bad HTML in local HTML attachment $path");
+            return false;
+        }
+
+        // Remove <script>s or htmlawed will dump their contents into output!
+        // Note: removing child nodes while iterating seems to mess things up,
+        // hence the double loop.
+        $scripts = array();
+        foreach ($dom->getElementsByTagName('script') as $script) {
+            $scripts[] = $script;
+        }
+        foreach ($scripts as $script) {
+            common_log(LOG_DEBUG, $script->textContent);
+            $script->parentNode->removeChild($script);
+        }
+
+        // Trim out everything outside the body...
+        $body = $dom->saveHTML();
+        $body = preg_replace('/^.*<body[^>]*>/is', '', $body);
+        $body = preg_replace('/<\/body[^>]*>.*$/is', '', $body);
+
+        require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
+        $config = array('safe' => 1,
+                        'deny_attribute' => 'id,style,on*',
+                        'comment' => 1); // remove comments
+        $scrubbed = htmLawed($body, $config);
+
+        return $scrubbed;
+    }
+
     function showFallback()
     {
         // If we don't know how to display an attachment inline, we probably
@@ -375,4 +429,3 @@ class Attachment extends AttachmentListItem
         $this->out->raw('<script>window.location = ' . json_encode($this->attachment->url) . ';</script>');
     }
 }
-