<?php/** * Smarty plugin * @package Smarty * @subpackage plugins *//** * Smarty {html_image} function plugin * * Type:     function<br> * Name:     html_image<br> * Date:     Feb 24, 2003<br> * Purpose:  format HTML tags for the image<br> * Input:<br> *         - file = file (and path) of image (required) *         - height = image height (optional, default actual height) *         - width = image width (optional, default actual width) *         - basedir = base directory for absolute paths, default *                     is environment variable DOCUMENT_ROOT *         - path_prefix = prefix for path output (optional, default empty) * * Examples: {html_image file="/images/masthead.gif"} * Output:   <img src="/images/masthead.gif" width=400 height=23> * @link http://smarty.php.net/manual/en/language.function.html.image.php {html_image} *      (Smarty online manual) * @author   Monte Ohrt <monte at ohrt dot com> * @author credits to Duda <duda@big.hu> - wrote first image function *           in repository, helped with lots of functionality * @version  1.0 * @param array * @param Smarty * @return string * @uses smarty_function_escape_special_chars() */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;}/* vim: set expandtab: */?>