<?php
 function smarty_function_html_image($params, &$smarty) { require_once $smarty->_get_plugin_filepath('shared','escape_special_chars'); $alt = ''; $file = ''; $height = ''; $width = ''; $extra = ''; $prefix = ''; $suffix = ''; $path_prefix = ''; $server_vars = ($smarty->request_use_auto_globals) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS']; $basedir = isset($server_vars['DOCUMENT_ROOT']) ? $server_vars['DOCUMENT_ROOT'] : ''; foreach($params as $_key => $_val) { switch($_key) { case 'file': case 'height': case 'width': case 'dpi': case 'path_prefix': case 'basedir': $$_key = $_val; break; case 'alt': if(!is_array($_val)) { $$_key = smarty_function_escape_special_chars($_val); } else { $smarty->trigger_error("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); } break; case 'link': case 'href': $prefix = '<a href="' . $_val . '">'; $suffix = '</a>'; break; default: if(!is_array($_val)) { $extra .= ' '.$_key.'="'.smarty_function_escape_special_chars($_val).'"'; } else { $smarty->trigger_error("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); } break; } } if (empty($file)) { $smarty->trigger_error("html_image: missing 'file' parameter", E_USER_NOTICE); return; } if (substr($file,0,1) == '/') { $_image_path = $basedir . $file; } else { $_image_path = $file; } if(!isset($params['width']) || !isset($params['height'])) { if(!$_image_data = @getimagesize($_image_path)) { if(!file_exists($_image_path)) { $smarty->trigger_error("html_image: unable to find '$_image_path'", E_USER_NOTICE); return; } else if(!is_readable($_image_path)) { $smarty->trigger_error("html_image: unable to read '$_image_path'", E_USER_NOTICE); return; } else { $smarty->trigger_error("html_image: '$_image_path' is not a valid image file", E_USER_NOTICE); return; } } if ($smarty->security && ($_params = array('resource_type' => 'file', 'resource_name' => $_image_path)) && (require_once(SMARTY_CORE_DIR . 'core.is_secure.php')) && (!smarty_core_is_secure($_params, $smarty)) ) { $smarty->trigger_error("html_image: (secure) '$_image_path' not in secure directory", E_USER_NOTICE); } if(!isset($params['width'])) { $width = $_image_data[0]; } if(!isset($params['height'])) { $height = $_image_data[1]; } } if(isset($params['dpi'])) { if(strstr($server_vars['HTTP_USER_AGENT'], 'Mac')) { $dpi_default = 72; } else { $dpi_default = 96; } $_resize = $dpi_default/$params['dpi']; $width = round($width * $_resize); $height = round($height * $_resize); } return $prefix . '<img src="'.$path_prefix.$file.'" alt="'.$alt.'" width="'.$width.'" height="'.$height.'"'.$extra.' />' . $suffix; } ?>
