--- /dev/null
+<?php
+
+namespace Drupal\user\Plugin\migrate\source\d6;
+
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+use Drupal\migrate\Row;
+
+/**
+ * Drupal 6 user picture source from database.
+ *
+ * @MigrateSource(
+ * id = "d6_user_picture_file"
+ * )
+ */
+class UserPictureFile extends DrupalSqlBase {
+
+ /**
+ * The file directory path.
+ *
+ * @var string
+ */
+ protected $filePath;
+
+ /**
+ * The temporary file path.
+ *
+ * @var string
+ */
+ protected $tempFilePath;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function query() {
+ $query = $this->select('users', 'u')
+ ->condition('u.picture', '', '<>')
+ ->fields('u', ['uid', 'picture']);
+ return $query;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function initializeIterator() {
+ $site_path = isset($this->configuration['site_path']) ? $this->configuration['site_path'] : 'sites/default';
+ $this->filePath = $this->variableGet('file_directory_path', $site_path . '/files') . '/';
+ $this->tempFilePath = $this->variableGet('file_directory_temp', '/tmp') . '/';
+ return parent::initializeIterator();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function prepareRow(Row $row) {
+ $row->setSourceProperty('filename', basename($row->getSourceProperty('picture')));
+ $row->setSourceProperty('file_directory_path', $this->filePath);
+ $row->setSourceProperty('temp_directory_path', $this->tempFilePath);
+ return parent::prepareRow($row);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function fields() {
+ return [
+ 'picture' => "Path to the user's uploaded picture.",
+ 'filename' => 'The picture filename.',
+ ];
+ }
+ /**
+ * {@inheritdoc}
+ */
+ public function getIds() {
+ $ids['uid']['type'] = 'integer';
+ return $ids;
+ }
+
+}