Index: mappers/feedapi_mapper_imagefield.inc
===================================================================
RCS file: mappers/feedapi_mapper_imagefield.inc
diff -N mappers/feedapi_mapper_imagefield.inc
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ mappers/feedapi_mapper_imagefield.inc	9 Jul 2008 14:33:11 -0000
@@ -0,0 +1,146 @@
+<?php
+// $Id$
+
+/**
+ * @file
+ * Implements a FeedAPI mapper on behalf of the ImageField module.
+ * @link http://drupal.org/project/imagefield
+ */
+
+/**
+ * Implementation of hook_feedapi_mapper().
+ */
+function imagefield_feedapi_mapper($op, $node, $field_name, $feed_element = array(), $sub_field = '') {
+  if (!($field = feedapi_mapper_content_is_cck_type($field_name, array('image')))) {
+    // Not an imagefield field.
+    return;
+  }
+
+  switch ($op) {
+    case 'describe':
+      return t('Maps image URLs to CCK ImageFields. The image will be downloaded and saved as a local file. You can choose whether to keep the original file name or use a hash value of the URL. The latter is better for images that are returned by scripts (like getimage.php?foo=), otherwise they would all be saved as "getimage.php".');
+
+    case 'list':
+      $sub_fields = array(
+        'original' => t('Original file name'),
+        'md5' => t('Hashed URL'),
+      );
+      return $sub_fields;
+
+    case 'map':
+      if ($feed_element) {
+        $items = (array)$node->$field_name;
+        foreach ((array)$feed_element as $element) {
+          if (valid_url($element) && $file = _feedapi_mapper_imagefield_file_insert($element, $sub_field, $node->nid)) {
+            // Always add as last, Image Field takes care of deleting the
+            // first image for non-multiple fields.
+            $items[] = $file;
+            if (!$field['multiple']) {
+              break;
+            }
+          }
+        }
+        $node->$field_name = $items;
+      }
+      return $node;
+  }
+}
+
+function _feedapi_mapper_imagefield_file_insert($url, $filename_option, $nid = NULL) {
+  static $blacklist;
+  if (!isset($blacklist)) {
+    // The blacklist is an associative array consisting of an MD5 fingerprint
+    // and keyed by file size.
+    $blacklist = variable_get('imagefield_mapper_blacklist', array());
+  }
+
+  // Download the image.
+  $result = drupal_http_request($url);
+  if ($result->code != 200) {
+    return FALSE;
+  }
+
+  // Check for blacklisted image.
+  $filesize = strlen($result->data);
+  if (isset($blacklist[$filesize]) && md5($result->data) == $blacklist[$filesize]) {
+    return FALSE;
+  }
+
+  // Build the filename.
+  $mime_type = $result->headers['Content-Type'];
+  $filename = _feedapi_mapper_imagefield_get_filename($filename_option, $url, $mime_type);
+  if (!$filename) {
+    return FALSE;
+  }
+  $filepath = file_directory_temp() .'/'. $filename;
+
+  // Avoid creating dupes while updating.
+  if ($nid && db_result(db_query("SELECT fid FROM {files} WHERE nid = %d AND filename = '%s' AND filesize = %d", $nid, $filename, $filesize))) {
+    return FALSE;
+  }
+
+  if ($filepath = file_save_data($result->data, $filepath)) {
+    // Construct the $file object. The file will be moved to the configured
+    // directory and the record will be inserted by the repective imagefield
+    // functions. File id 'upload' is required while updating a node.
+    // @see imagefield_insert_file(), imagefield_update_file()
+    return array(
+      'fid' => 'upload',
+      'filename' => $filename,
+      'filepath' => $filepath,
+      'filemime' => $mime_type,
+      'filesize' => $filesize,
+    );
+  }
+
+  return FALSE;
+}
+
+/**
+ * Get local filename from image URL.
+ *
+ * @param $filename_option
+ *   The selected filename generation option.
+ * @param $url
+ *   The feed URL.
+ * @param &$mime_type
+ *   The MIME type of the downloaded image.
+ * @return
+ *   The local filename or FALSE if the file was no image.
+ */
+function _feedapi_mapper_imagefield_get_filename($filename_option, $url, &$mime_type) {
+  // Figure out the proper file extension from the MIME type.
+  static $types = array(
+    'image/gif' => '.gif',
+    'image/jpeg' => '.jpg',
+    'image/png' => '.png',
+    'image/psd' => '.psd',
+    'image/bmp' => '.bmp',
+    'image/tiff' => '.tif',
+    'image/jp2' => '.jp2',
+    'image/iff' => '.iff',
+    'image/vnd.wap.wbmp' => '.wbmp',
+    'image/xbm' => '.xbm',
+    'image/vnd.microsoft.icon' => '.ico',
+  );
+  if (!isset($types[$mime_type])) {
+    return FALSE;
+  }
+
+  $ext = $types[$mime_type];
+
+  // Create filename.
+  switch ($filename_option) {
+    case 'original':
+      $components = parse_url($url);
+      $filename = basename($components['path']);
+      if (strrchr($filename, '.') != $ext) {
+        $filename .= $ext;
+      }
+      return $filename;
+
+    case 'md5':
+      return md5($url) . $ext;
+  }
+}
+