mirror of
https://github.com/smarty-php/smarty.git
synced 2025-11-03 22:01:36 +01:00
143 lines
4.7 KiB
PHP
143 lines
4.7 KiB
PHP
<?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: */
|
|
|
|
?>
|