first import

2015-04-08 11:40:19 +02:00
commit 1bc61b12ad
8435 changed files with 1582817 additions and 0 deletions
@@ -0,0 +1,80 @@
+<?php
+
+/**
+ *  @file
+ *  XML data retrieval and storage API for Media.
+ */
+
+/**
+ *  A wrapper around simplexml to retrieve a given XML file.
+ *
+ *  @param $url
+ *    The URL to the XML to retrieve.
+ *  @param $display_errors
+ *    Optional; if TRUE, then we'll display errors to the end user. They'll be
+ *    logged to the watchdog in any case.
+ *  @param $refresh
+ *    Optional; if TRUE, then we'll force a new load of the XML. Otherwise,
+ *    a cached version will be retrieved if possible.
+ *  @return
+ *    A fully populated object, or FALSE on an error.
+ */
+function _media_retrieve_xml($url, $display_errors = FALSE, $refresh = FALSE) {
+  $xmls = &drupal_static(__FUNCTION__, array());
+
+  // Return our cached XML if allowed, and it exists.
+  if (!$refresh && isset($xmls[$url])) {
+    return $xmls[$url];
+  }
+  elseif (!$refresh && $cache = cache_get('media:xml:' . $url, 'cache_media_xml')) {
+    $xmls[$url] = $cache->data;
+    return $xmls[$url];
+  }
+
+  // Enable user error handling.
+  libxml_use_internal_errors(TRUE);
+
+  // Load the document
+  $xml = simplexml_load_file($url);
+
+  if (!$xml) {
+    foreach (libxml_get_errors() as $error) {
+      $params = array('%url' => $url, '%error' => $error->message);
+      // Handle errors here.
+      if ($display_errors) {
+        drupal_set_message(t('Error retrieving XML from %url: %error', $params), 'error');
+      }
+      watchdog('media', 'Error retrieving XML from %url: %error', $params, WATCHDOG_WARNING);
+    }
+
+    // Clear our error cache.
+    libxml_clear_errors();
+
+    // Set the static cache, but not Drupal's cache, so we can attempt to
+    // retrieve the file another time if possible.
+    $xmls[$url] = FALSE;
+  }
+  else {
+    $xmls[$url] = _media_unserialize_xml($xml);
+    cache_set('media:xml:' . $url, $xmls[$url], 'cache_media_xml', media_variable_get('xml_cache_expire', 3600));
+  }
+
+  return $xmls[$url];
+}
+
+/**
+ *  Recursively converts a SimpleXMLElement object into an array.
+ *  @param $xml
+ *    The original XML object.
+ */
+function _media_unserialize_xml($xml) {
+  if ($xml instanceof SimpleXMLElement) {
+    $xml = (array) $xml;
+  }
+  if (is_array($xml)) {
+    foreach ($xml as $key => $item) {
+      $xml[$key] = _media_unserialize_xml($item);
+    }
+  }
+  return $xml;
+}