diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/aggregator/aggregator.parser.inc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/aggregator/aggregator.parser.inc	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,329 @@
+<?php
+
+/**
+ * @file
+ * Parser functions for the aggregator module.
+ */
+
+/**
+ * Implements hook_aggregator_parse_info().
+ */
+function aggregator_aggregator_parse_info() {
+  return array(
+    'title' => t('Default parser'),
+    'description' => t('Parses RSS, Atom and RDF feeds.'),
+  );
+}
+
+/**
+ * Implements hook_aggregator_parse().
+ */
+function aggregator_aggregator_parse($feed) {
+  global $channel, $image;
+
+  // Filter the input data.
+  if (aggregator_parse_feed($feed->source_string, $feed)) {
+    $modified = empty($feed->http_headers['last-modified']) ? 0 : strtotime($feed->http_headers['last-modified']);
+
+    // Prepare the channel data.
+    foreach ($channel as $key => $value) {
+      $channel[$key] = trim($value);
+    }
+
+    // Prepare the image data (if any).
+    foreach ($image as $key => $value) {
+      $image[$key] = trim($value);
+    }
+
+    $etag = empty($feed->http_headers['etag']) ? '' : $feed->http_headers['etag'];
+
+    // Add parsed data to the feed object.
+    $feed->link = !empty($channel['link']) ? $channel['link'] : '';
+    $feed->description = !empty($channel['description']) ? $channel['description'] : '';
+    $feed->image = !empty($image['url']) ? $image['url'] : '';
+    $feed->etag = $etag;
+    $feed->modified = $modified;
+
+    // Clear the cache.
+    cache_clear_all();
+
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+/**
+ * Parses a feed and stores its items.
+ *
+ * @param $data
+ *   The feed data.
+ * @param $feed
+ *   An object describing the feed to be parsed.
+ *
+ * @return
+ *   FALSE on error, TRUE otherwise.
+ */
+function aggregator_parse_feed(&$data, $feed) {
+  global $items, $image, $channel;
+
+  // Unset the global variables before we use them.
+  unset($GLOBALS['element'], $GLOBALS['item'], $GLOBALS['tag']);
+  $items = array();
+  $image = array();
+  $channel = array();
+
+  // Parse the data.
+  $xml_parser = drupal_xml_parser_create($data);
+  xml_set_element_handler($xml_parser, 'aggregator_element_start', 'aggregator_element_end');
+  xml_set_character_data_handler($xml_parser, 'aggregator_element_data');
+
+  if (!xml_parse($xml_parser, $data, 1)) {
+    watchdog('aggregator', 'The feed from %site seems to be broken, due to an error "%error" on line %line.', array('%site' => $feed->title, '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser)), WATCHDOG_WARNING);
+    drupal_set_message(t('The feed from %site seems to be broken, because of error "%error" on line %line.', array('%site' => $feed->title, '%error' => xml_error_string(xml_get_error_code($xml_parser)), '%line' => xml_get_current_line_number($xml_parser))), 'error');
+    return FALSE;
+  }
+  xml_parser_free($xml_parser);
+
+  // We reverse the array such that we store the first item last, and the last
+  // item first. In the database, the newest item should be at the top.
+  $items = array_reverse($items);
+
+  // Initialize items array.
+  $feed->items = array();
+  foreach ($items as $item) {
+
+    // Prepare the item:
+    foreach ($item as $key => $value) {
+      $item[$key] = trim($value);
+    }
+
+    // Resolve the item's title. If no title is found, we use up to 40
+    // characters of the description ending at a word boundary, but not
+    // splitting potential entities.
+    if (!empty($item['title'])) {
+      $item['title'] = $item['title'];
+    }
+    elseif (!empty($item['description'])) {
+      $item['title'] = preg_replace('/^(.*)[^\w;&].*?$/', "\\1", truncate_utf8($item['description'], 40));
+    }
+    else {
+      $item['title'] = '';
+    }
+
+    // Resolve the items link.
+    if (!empty($item['link'])) {
+      $item['link'] = $item['link'];
+    }
+    else {
+      $item['link'] = $feed->link;
+    }
+
+    // Atom feeds have an ID tag instead of a GUID tag.
+    if (!isset($item['guid'])) {
+      $item['guid'] = isset($item['id']) ? $item['id'] : '';
+    }
+
+    // Atom feeds have a content and/or summary tag instead of a description tag.
+    if (!empty($item['content:encoded'])) {
+      $item['description'] = $item['content:encoded'];
+    }
+    elseif (!empty($item['summary'])) {
+      $item['description'] = $item['summary'];
+    }
+    elseif (!empty($item['content'])) {
+      $item['description'] = $item['content'];
+    }
+
+    // Try to resolve and parse the item's publication date.
+    $date = '';
+    foreach (array('pubdate', 'dc:date', 'dcterms:issued', 'dcterms:created', 'dcterms:modified', 'issued', 'created', 'modified', 'published', 'updated') as $key) {
+      if (!empty($item[$key])) {
+        $date = $item[$key];
+        break;
+      }
+    }
+
+    $item['timestamp'] = strtotime($date);
+
+    if ($item['timestamp'] === FALSE) {
+      $item['timestamp'] = aggregator_parse_w3cdtf($date); // Aggregator_parse_w3cdtf() returns FALSE on failure.
+    }
+
+    // Resolve dc:creator tag as the item author if author tag is not set.
+    if (empty($item['author']) && !empty($item['dc:creator'])) {
+      $item['author'] = $item['dc:creator'];
+    }
+
+    $item += array('author' => '', 'description' => '');
+
+    // Store on $feed object. This is where processors will look for parsed items.
+    $feed->items[] = $item;
+  }
+
+  return TRUE;
+}
+
+/**
+ * Performs an action when an opening tag is encountered.
+ *
+ * Callback function used by xml_parse() within aggregator_parse_feed().
+ */
+function aggregator_element_start($parser, $name, $attributes) {
+  global $item, $element, $tag, $items, $channel;
+
+  $name = strtolower($name);
+  switch ($name) {
+    case 'image':
+    case 'textinput':
+    case 'summary':
+    case 'tagline':
+    case 'subtitle':
+    case 'logo':
+    case 'info':
+      $element = $name;
+      break;
+    case 'id':
+    case 'content':
+      if ($element != 'item') {
+        $element = $name;
+      }
+    case 'link':
+      // According to RFC 4287, link elements in Atom feeds without a 'rel'
+      // attribute should be interpreted as though the relation type is
+      // "alternate".
+      if (!empty($attributes['HREF']) && (empty($attributes['REL']) || $attributes['REL'] == 'alternate')) {
+        if ($element == 'item') {
+          $items[$item]['link'] = $attributes['HREF'];
+        }
+        else {
+          $channel['link'] = $attributes['HREF'];
+        }
+      }
+      break;
+    case 'item':
+      $element = $name;
+      $item += 1;
+      break;
+    case 'entry':
+      $element = 'item';
+      $item += 1;
+      break;
+  }
+
+  $tag = $name;
+}
+
+/**
+ * Performs an action when a closing tag is encountered.
+ *
+ * Callback function used by xml_parse() within aggregator_parse_feed().
+ */
+function aggregator_element_end($parser, $name) {
+  global $element;
+
+  switch ($name) {
+    case 'image':
+    case 'textinput':
+    case 'item':
+    case 'entry':
+    case 'info':
+      $element = '';
+      break;
+    case 'id':
+    case 'content':
+      if ($element == $name) {
+        $element = '';
+      }
+  }
+}
+
+/**
+ * Performs an action when data is encountered.
+ *
+ * Callback function used by xml_parse() within aggregator_parse_feed().
+ */
+function aggregator_element_data($parser, $data) {
+  global $channel, $element, $items, $item, $image, $tag;
+  $items += array($item => array());
+  switch ($element) {
+    case 'item':
+      $items[$item] += array($tag => '');
+      $items[$item][$tag] .= $data;
+      break;
+    case 'image':
+    case 'logo':
+      $image += array($tag => '');
+      $image[$tag] .= $data;
+      break;
+    case 'link':
+      if ($data) {
+        $items[$item] += array($tag => '');
+        $items[$item][$tag] .= $data;
+      }
+      break;
+    case 'content':
+      $items[$item] += array('content' => '');
+      $items[$item]['content'] .= $data;
+      break;
+    case 'summary':
+      $items[$item] += array('summary' => '');
+      $items[$item]['summary'] .= $data;
+      break;
+    case 'tagline':
+    case 'subtitle':
+      $channel += array('description' => '');
+      $channel['description'] .= $data;
+      break;
+    case 'info':
+    case 'id':
+    case 'textinput':
+      // The sub-element is not supported. However, we must recognize
+      // it or its contents will end up in the item array.
+      break;
+    default:
+      $channel += array($tag => '');
+      $channel[$tag] .= $data;
+  }
+}
+
+/**
+ * Parses the W3C date/time format, a subset of ISO 8601.
+ *
+ * PHP date parsing functions do not handle this format. See
+ * http://www.w3.org/TR/NOTE-datetime for more information. Originally from
+ * MagpieRSS (http://magpierss.sourceforge.net/).
+ *
+ * @param $date_str
+ *   A string with a potentially W3C DTF date.
+ *
+ * @return
+ *   A timestamp if parsed successfully or FALSE if not.
+ */
+function aggregator_parse_w3cdtf($date_str) {
+  if (preg_match('/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/', $date_str, $match)) {
+    list($year, $month, $day, $hours, $minutes, $seconds) = array($match[1], $match[2], $match[3], $match[4], $match[5], $match[6]);
+    // Calculate the epoch for current date assuming GMT.
+    $epoch = gmmktime($hours, $minutes, $seconds, $month, $day, $year);
+    if ($match[10] != 'Z') { // Z is zulu time, aka GMT
+      list($tz_mod, $tz_hour, $tz_min) = array($match[8], $match[9], $match[10]);
+      // Zero out the variables.
+      if (!$tz_hour) {
+        $tz_hour = 0;
+      }
+      if (!$tz_min) {
+        $tz_min = 0;
+      }
+      $offset_secs = (($tz_hour * 60) + $tz_min) * 60;
+      // Is timezone ahead of GMT?  If yes, subtract offset.
+      if ($tz_mod == '+') {
+        $offset_secs *= -1;
+      }
+      $epoch += $offset_secs;
+    }
+    return $epoch;
+  }
+  else {
+    return FALSE;
+  }
+}