1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
<?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: */
?>
|
