2 files changed, 88 insertions, 8 deletions
diff --git a/phpBB/phpbb/avatar/driver/gravatar.php b/phpBB/phpbb/avatar/driver/gravatar.php
index 2082e0fd02..bb4977c30c 100644
--- a/phpBB/phpbb/avatar/driver/gravatar.php
+++ b/phpBB/phpbb/avatar/driver/gravatar.php
@@ -172,6 +172,8 @@ class gravatar extends \phpbb\avatar\driver\driver
 	*/
 	protected function get_gravatar_url($row)
 	{
+		global $phpbb_dispatcher;
+
 		$url = self::GRAVATAR_URL;
 		$url .=  md5(strtolower(trim($row['avatar'])));
 
@@ -180,6 +182,17 @@ class gravatar extends \phpbb\avatar\driver\driver
 			$url .= '?s=' . max($row['avatar_width'], $row['avatar_height']);
 		}
 
+		/**
+		* Modify gravatar url
+		*
+		* @event core.get_gravatar_url_after
+		* @var	string	row	User data or group data
+		* @var	string	url	Gravatar URL
+		* @since 3.1.7-RC1
+		*/
+		$vars = array('row', 'url');
+		extract($phpbb_dispatcher->trigger_event('core.get_gravatar_url_after', compact($vars)));
+
 		return $url;
 	}
 }
diff --git a/phpBB/phpbb/avatar/driver/upload.php b/phpBB/phpbb/avatar/driver/upload.php
index ee36243844..e44157294c 100644
--- a/phpBB/phpbb/avatar/driver/upload.php
+++ b/phpBB/phpbb/avatar/driver/upload.php
@@ -24,6 +24,11 @@ class upload extends \phpbb\avatar\driver\driver
 	protected $mimetype_guesser;
 
 	/**
+	* @var \phpbb\event\dispatcher_interface
+	*/
+	protected $dispatcher;
+
+	/**
 	* Construct a driver object
 	*
 	* @param \phpbb\config\config $config phpBB configuration
@@ -31,22 +36,24 @@ class upload extends \phpbb\avatar\driver\driver
 	* @param string $php_ext PHP file extension
 	* @param \phpbb_path_helper $path_helper phpBB path helper
 	* @param \phpbb\mimetype\guesser $mimetype_guesser Mimetype guesser
+	* @param \phpbb\event\dispatcher_interface $dispatcher phpBB Event dispatcher object
 	* @param \phpbb\cache\driver\driver_interface $cache Cache driver
 	*/
-	public function __construct(\phpbb\config\config $config, $phpbb_root_path, $php_ext, \phpbb\path_helper $path_helper, \phpbb\mimetype\guesser $mimetype_guesser, \phpbb\cache\driver\driver_interface $cache = null)
+	public function __construct(\phpbb\config\config $config, $phpbb_root_path, $php_ext, \phpbb\path_helper $path_helper, \phpbb\mimetype\guesser $mimetype_guesser, \phpbb\event\dispatcher_interface $dispatcher, \phpbb\cache\driver\driver_interface $cache = null)
 	{
 		$this->config = $config;
 		$this->phpbb_root_path = $phpbb_root_path;
 		$this->php_ext = $php_ext;
 		$this->path_helper = $path_helper;
 		$this->mimetype_guesser = $mimetype_guesser;
+		$this->dispatcher = $dispatcher;
 		$this->cache = $cache;
 	}
 
 	/**
 	* {@inheritdoc}
 	*/
-	public function get_data($row, $ignore_config = false)
+	public function get_data($row)
 	{
 		$root_path = (defined('PHPBB_USE_BOARD_URL_PATH') && PHPBB_USE_BOARD_URL_PATH) ? generate_board_url() . '/' : $this->path_helper->get_web_root_path();
 
@@ -137,6 +144,15 @@ class upload extends \phpbb\avatar\driver\driver
 		$prefix = $this->config['avatar_salt'] . '_';
 		$file->clean_filename('avatar', $prefix, $row['id']);
 
+		// If there was an error during upload, then abort operation
+		if (sizeof($file->error))
+		{
+			$file->remove();
+			$error = $file->error;
+			return false;
+		}
+
+		// Calculate new destination
 		$destination = $this->config['avatar_path'];
 
 		// Adjust destination path (no trailing slash)
@@ -151,16 +167,45 @@ class upload extends \phpbb\avatar\driver\driver
 			$destination = '';
 		}
 
-		// Move file and overwrite any existing image
-		$file->move_file($destination, true);
+		/**
+		* Before moving new file in place (and eventually overwriting the existing avatar with the newly uploaded avatar)
+		*
+		* @event core.avatar_driver_upload_move_file_before
+		* @var	string	destination			Destination directory where the file is going to be moved
+		* @var	string	prefix				Prefix for the avatar filename
+		* @var	array	row					Array with avatar row data
+		* @var	array	error				Array of errors, if filled in by this event file will not be moved
+		* @since 3.1.6-RC1
+		*/
+		$vars = array(
+			'destination',
+			'prefix',
+			'row',
+			'error',
+		);
+		extract($this->dispatcher->trigger_event('core.avatar_driver_upload_move_file_before', compact($vars)));
 
-		if (sizeof($file->error))
+		if (!sizeof($error))
+		{
+			// Move file and overwrite any existing image
+			$file->move_file($destination, true);
+		}
+
+		// If there was an error during move, then clean up leftovers
+		$error = array_merge($error, $file->error);
+		if (sizeof($error))
 		{
 			$file->remove();
-			$error = array_merge($error, $file->error);
 			return false;
 		}
 
+		// Delete current avatar if not overwritten
+		$ext = substr(strrchr($row['avatar'], '.'), 1);
+		if ($ext && $ext !== $file->get('extension'))
+		{
+			$this->delete($row);
+		}
+
 		return array(
 			'avatar' => $row['id'] . '_' . time() . '.' . $file->get('extension'),
 			'avatar_width' => $file->get('width'),
@@ -185,10 +230,32 @@ class upload extends \phpbb\avatar\driver\driver
 	*/
 	public function delete($row)
 	{
+
+		$error = array();
+		$destination = $this->config['avatar_path'];
+		$prefix = $this->config['avatar_salt'] . '_';
 		$ext = substr(strrchr($row['avatar'], '.'), 1);
-		$filename = $this->phpbb_root_path . $this->config['avatar_path'] . '/' . $this->config['avatar_salt'] . '_' . $row['id'] . '.' . $ext;
+		$filename = $this->phpbb_root_path . $destination . '/' . $prefix . $row['id'] . '.' . $ext;
+
+		/**
+		* Before deleting an existing avatar
+		*
+		* @event core.avatar_driver_upload_delete_before
+		* @var	string	destination			Destination directory where the file is going to be deleted
+		* @var	string	prefix				Prefix for the avatar filename
+		* @var	array	row					Array with avatar row data
+		* @var	array	error				Array of errors, if filled in by this event file will not be deleted
+		* @since 3.1.6-RC1
+		*/
+		$vars = array(
+			'destination',
+			'prefix',
+			'row',
+			'error',
+		);
+		extract($this->dispatcher->trigger_event('core.avatar_driver_upload_delete_before', compact($vars)));
 
-		if (file_exists($filename))
+		if (!sizeof($error) && file_exists($filename))
 		{
 			@unlink($filename);
 		}