[ticket/10250] Replacing the phpBB logo with a version that includes (R)

phpBB/includes/acp/acp_styles.php

@@ -510,6 +510,7 @@ function main($id, $mode)
 							$db->sql_transaction('commit');
 
 							$cache->destroy('sql', STYLES_IMAGESET_DATA_TABLE);
+							$cache->destroy('imageset_site_logo_md5');
 
 							add_log('admin', 'LOG_IMAGESET_REFRESHED', $imageset_row['imageset_name']);
 							trigger_error($user->lang['IMAGESET_REFRESHED'] . adm_back_link($this->u_action));

phpBB/includes/session.php

@@ -2272,9 +2272,44 @@ function img($img, $alt = '', $width = false, $suffix = '', $type = 'full_tag')
 			// Use URL if told so
 			$root_path = (defined('PHPBB_USE_BOARD_URL_PATH') && PHPBB_USE_BOARD_URL_PATH) ? generate_board_url() . '/' : $phpbb_root_path;
 
-			$img_data['src'] = $root_path . 'styles/' . rawurlencode($this->theme['imageset_path']) . '/imageset/' . ($this->img_array[$img]['image_lang'] ? $this->img_array[$img]['image_lang'] .'/' : '') . $this->img_array[$img]['image_filename'];
+			$path = 'styles/' . rawurlencode($this->theme['imageset_path']) . '/imageset/' . ($this->img_array[$img]['image_lang'] ? $this->img_array[$img]['image_lang'] .'/' : '') . $this->img_array[$img]['image_filename'];
+
+			$img_data['src'] = $root_path . $path;
 			$img_data['width'] = $this->img_array[$img]['image_width'];
 			$img_data['height'] = $this->img_array[$img]['image_height'];
+
+			// We overwrite the width and height to the phpbb logo's width
+			// and height here if the contents of the site_logo file are
+			// really equal to the phpbb_logo
+			// This allows us to change the dimensions of the phpbb_logo without
+			// modifying the imageset.cfg and causing a conflict for everyone
+			// who modified it for their custom logo on updating
+			if ($img == 'site_logo' && file_exists($phpbb_root_path . $path))
+			{
+				global $cache;
+
+				$img_file_hashes = $cache->get('imageset_site_logo_md5');
+
+				if ($img_file_hashes === false)
+				{
+					$img_file_hashes = array();
+				}
+
+				$key = $this->theme['imageset_path'] . '::' . $this->img_array[$img]['image_lang'];
+				if (!isset($img_file_hashes[$key]))
+				{
+					$img_file_hashes[$key] = md5(file_get_contents($phpbb_root_path . $path));
+					$cache->put('imageset_site_logo_md5', $img_file_hashes);
+				}
+
+				$phpbb_logo_hash = '0c461a32cd3621643105f0d02a772c10';
+
+				if ($phpbb_logo_hash == $img_file_hashes[$key])
+				{
+					$img_data['width'] = '149';
+					$img_data['height'] = '52';
+				}
+			}
 		}
 
 		$alt = (!empty($this->lang[$alt])) ? $this->lang[$alt] : $alt;