From a6c179d56973e382205c8583568d635c37f814c8 Mon Sep 17 00:00:00 2001
From: Nathan Kinkade <kinkade@measurementlab.net>
Date: Tue, 27 Aug 2019 13:05:48 -0600
Subject: Updates smarty to v3.1.33.

---
 lib/smarty-3.1.33/plugins/function.html_image.php | 158 ++++++++++++++++++++++
 1 file changed, 158 insertions(+)
 create mode 100644 lib/smarty-3.1.33/plugins/function.html_image.php

(limited to 'lib/smarty-3.1.33/plugins/function.html_image.php')

diff --git a/lib/smarty-3.1.33/plugins/function.html_image.php b/lib/smarty-3.1.33/plugins/function.html_image.php
new file mode 100644
index 0000000..ad468e4
--- /dev/null
+++ b/lib/smarty-3.1.33/plugins/function.html_image.php
@@ -0,0 +1,158 @@
+<?php
+/**
+ * Smarty plugin
+ *
+ * @package    Smarty
+ * @subpackage PluginsFunction
+ */
+/**
+ * Smarty {html_image} function plugin
+ * Type:     function
+ * Name:     html_image
+ * Date:     Feb 24, 2003
+ * Purpose:  format HTML tags for the image
+ * Examples: {html_image file="/images/masthead.gif"}
+ * Output:   <img src="/images/masthead.gif" width=400 height=23>
+ * Params:
+ *
+ * - 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)
+ *
+ * @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 $template template object
+ *
+ * @throws SmartyException
+ * @return string
+ * @uses    smarty_function_escape_special_chars()
+ */
+function smarty_function_html_image($params, Smarty_Internal_Template $template)
+{
+    $template->_checkPlugins(
+        array(
+            array(
+                'function' => 'smarty_function_escape_special_chars',
+                'file'     => 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($_image_path)) {
+                return;
+            }
+        }
+    }
+    if (!isset($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 '{$_image_path}'", E_USER_NOTICE);
+                return;
+            } elseif (!is_readable($_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;
+}
-- 
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