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diff --git a/lib/smarty/libs/plugins/function.html_image.php b/lib/smarty/libs/plugins/function.html_image.php
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+<?php
+/**
+ * Smarty plugin
+ *
+ * @package Smarty
+ * @subpackage PluginsFunction
+ */
+
+/**
+ * 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>
+ * Examples: {html_image file="/images/masthead.gif"}<br>
+ * Output: <img src="/images/masthead.gif" width=400 height=23><br>
+ * Params:
+ * <pre>
+ * - file - (required) - file (and path) of image
+ * - height - (optional) - image height (default actual height)
+ * - width - (optional) - image width (default actual width)
+ * - basedir - (optional) - base directory for absolute paths, default is environment variable DOCUMENT_ROOT
+ * - path_prefix - prefix for path output (optional, default empty)
+ * </pre>
+ *
+ * @link http://www.smarty.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>
+ * @version 1.0
+ * @param array $params parameters
+ * @param Smarty_Internal_Template $template template object
+ * @return string
+ * @uses smarty_function_escape_special_chars()
+ */
+function smarty_function_html_image($params, $template)
+{
+ require_once(SMARTY_PLUGINS_DIR . 'shared.escape_special_chars.php');
+
+ $alt = '';
+ $file = '';
+ $height = '';
+ $width = '';
+ $extra = '';
+ $prefix = '';
+ $suffix = '';
+ $path_prefix = '';
+ $basedir = isset($_SERVER['DOCUMENT_ROOT']) ? $_SERVER['DOCUMENT_ROOT'] : '';
+ foreach($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($_val);
+ } else {
+ throw new SmartyException ("html_image: extra attribute '$_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 {
+ throw new SmartyException ("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
+ }
+ break;
+ }
+ }
+
+ if (empty($file)) {
+ trigger_error("html_image: missing 'file' parameter", E_USER_NOTICE);
+ return;
+ }
+
+ if ($file[0] == '/') {
+ $_image_path = $basedir . $file;
+ } else {
+ $_image_path = $file;
+ }
+
+ // strip file protocol
+ if (stripos($params['file'], 'file://') === 0) {
+ $params['file'] = substr($params['file'], 7);
+ }
+
+ $protocol = strpos($params['file'], '://');
+ if ($protocol !== false) {
+ $protocol = strtolower(substr($params['file'], 0, $protocol));
+ }
+
+ if (isset($template->smarty->security_policy)) {
+ if ($protocol) {
+ // remote resource (or php stream, …)
+ if(!$template->smarty->security_policy->isTrustedUri($params['file'])) {
+ return;
+ }
+ } else {
+ // local file
+ if(!$template->smarty->security_policy->isTrustedResourceDir($params['file'])) {
+ return;
+ }
+ }
+ }
+
+ if (!isset($params['width']) || !isset($params['height'])) {
+ // FIXME: (rodneyrehm) getimagesize() loads the complete file off a remote resource, use custom [jpg,png,gif]header reader!
+ if (!$_image_data = @getimagesize($_image_path)) {
+ if (!file_exists($_image_path)) {
+ trigger_error("html_image: unable to find '$_image_path'", E_USER_NOTICE);
+ return;
+ } else if (!is_readable($_image_path)) {
+ trigger_error("html_image: unable to read '$_image_path'", E_USER_NOTICE);
+ return;
+ } else {
+ trigger_error("html_image: '$_image_path' is not a valid image file", E_USER_NOTICE);
+ return;
+ }
+ }
+
+ if (!isset($params['width'])) {
+ $width = $_image_data[0];
+ }
+ if (!isset($params['height'])) {
+ $height = $_image_data[1];
+ }
+ }
+
+ if (isset($params['dpi'])) {
+ if (strstr($_SERVER['HTTP_USER_AGENT'], 'Mac')) {
+ // FIXME: (rodneyrehm) wrong dpi assumption
+ // don't know who thought this up… even if it was true in 1998, it's definitely wrong in 2011.
+ $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;
+}
+
+?> \ No newline at end of file