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| Редакция | Автор | № строки | Строка |
|---|---|---|---|
| 304 | alex-w | 1 | <?php |
| 2 | /** |
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| 3 | * Smarty plugin |
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| 4 | * |
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| 5 | * @package Smarty |
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| 6 | * @subpackage PluginsFunction |
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| 7 | */ |
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| 8 | |||
| 9 | /** |
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| 10 | * Smarty {html_image} function plugin |
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| 11 | * |
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| 12 | * Type: function<br> |
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| 13 | * Name: html_image<br> |
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| 14 | * Date: Feb 24, 2003<br> |
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| 15 | * Purpose: format HTML tags for the image<br> |
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| 16 | * Examples: {html_image file="/images/masthead.gif"} |
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| 17 | * Output: <img src="/images/masthead.gif" width=400 height=23> |
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| 18 | * |
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| 19 | * @link http://smarty.php.net/manual/en/language.function.html.image.php {html_image} |
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| 20 | (Smarty online manual) |
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| 21 | * @author Monte Ohrt <monte at ohrt dot com> |
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| 22 | * @author credits to Duda <duda@big.hu> |
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| 23 | * @version 1.0 |
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| 24 | * @param array $params parameters |
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| 25 | * Input:<br> |
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| 26 | * - file = file (and path) of image (required) |
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| 27 | * - height = image height (optional, default actual height) |
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| 28 | * - width = image width (optional, default actual width) |
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| 29 | * - basedir = base directory for absolute paths, default |
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| 30 | * is environment variable DOCUMENT_ROOT |
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| 31 | * - path_prefix = prefix for path output (optional, default empty) |
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| 32 | * @param object $smarty Smarty object |
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| 33 | * @param object $template template object |
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| 34 | * @return string |
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| 35 | * @uses smarty_function_escape_special_chars() |
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| 36 | */ |
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| 37 | function smarty_function_html_image($params, $smarty, $template) |
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| 38 | { |
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| 39 | require_once(SMARTY_PLUGINS_DIR . 'shared.escape_special_chars.php'); |
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| 40 | //$smarty->loadPlugin('Smarty_shared_escape_special_chars'); |
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| 41 | |||
| 42 | $alt = ''; |
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| 43 | $file = ''; |
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| 44 | $height = ''; |
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| 45 | $width = ''; |
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| 46 | $extra = ''; |
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| 47 | $prefix = ''; |
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| 48 | $suffix = ''; |
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| 49 | $path_prefix = ''; |
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| 50 | $server_vars = ($smarty->request_use_auto_globals) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS']; |
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| 51 | $basedir = isset($server_vars['DOCUMENT_ROOT']) ? $server_vars['DOCUMENT_ROOT'] : ''; |
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| 52 | foreach($params as $_key => $_val) { |
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| 53 | switch ($_key) { |
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| 54 | case 'file': |
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| 55 | case 'height': |
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| 56 | case 'width': |
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| 57 | case 'dpi': |
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| 58 | case 'path_prefix': |
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| 59 | case 'basedir': |
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| 60 | $$_key = $_val; |
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| 61 | break; |
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| 62 | |||
| 63 | case 'alt': |
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| 64 | if (!is_array($_val)) { |
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| 65 | $$_key = smarty_function_escape_special_chars($_val); |
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| 66 | } else { |
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| 67 | throw new Exception ("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); |
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| 68 | } |
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| 69 | break; |
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| 70 | |||
| 71 | case 'link': |
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| 72 | case 'href': |
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| 73 | $prefix = '<a href="' . $_val . '">'; |
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| 74 | $suffix = '</a>'; |
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| 75 | break; |
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| 76 | |||
| 77 | default: |
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| 78 | if (!is_array($_val)) { |
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| 79 | $extra .= ' ' . $_key . '="' . smarty_function_escape_special_chars($_val) . '"'; |
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| 80 | } else { |
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| 81 | throw new Exception ("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); |
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| 82 | } |
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| 83 | break; |
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| 84 | } |
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| 85 | } |
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| 86 | |||
| 87 | if (empty($file)) { |
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| 88 | throw new Exception ("html_image: missing 'file' parameter", E_USER_NOTICE); |
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| 89 | return; |
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| 90 | } |
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| 91 | |||
| 92 | if (substr($file, 0, 1) == '/') { |
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| 93 | $_image_path = $basedir . $file; |
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| 94 | } else { |
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| 95 | $_image_path = $file; |
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| 96 | } |
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| 97 | |||
| 98 | if (!isset($params['width']) || !isset($params['height'])) { |
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| 99 | if (!$_image_data = @getimagesize($_image_path)) { |
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| 100 | if (!file_exists($_image_path)) { |
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| 101 | throw new Exception ("html_image: unable to find '$_image_path'", E_USER_NOTICE); |
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| 102 | return; |
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| 103 | } else if (!is_readable($_image_path)) { |
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| 104 | throw new Exception ("html_image: unable to read '$_image_path'", E_USER_NOTICE); |
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| 105 | return; |
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| 106 | } else { |
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| 107 | throw new Exception ("html_image: '$_image_path' is not a valid image file", E_USER_NOTICE); |
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| 108 | return; |
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| 109 | } |
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| 110 | } |
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| 111 | if ($template->security) { |
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| 112 | if (!$smarty->security_handler->isTrustedResourceDir($_image_path)) { |
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| 113 | return; |
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| 114 | } |
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| 115 | } |
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| 116 | |||
| 117 | if (!isset($params['width'])) { |
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| 118 | $width = $_image_data[0]; |
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| 119 | } |
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| 120 | if (!isset($params['height'])) { |
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| 121 | $height = $_image_data[1]; |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | if (isset($params['dpi'])) { |
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| 126 | if (strstr($server_vars['HTTP_USER_AGENT'], 'Mac')) { |
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| 127 | $dpi_default = 72; |
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| 128 | } else { |
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| 129 | $dpi_default = 96; |
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| 130 | } |
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| 131 | $_resize = $dpi_default / $params['dpi']; |
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| 132 | $width = round($width * $_resize); |
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| 133 | $height = round($height * $_resize); |
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| 134 | } |
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| 135 | |||
| 136 | return $prefix . '<img src="' . $path_prefix . $file . '" alt="' . $alt . '" width="' . $width . '" height="' . $height . '"' . $extra . ' />' . $suffix; |
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| 137 | } |
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| 138 | |||
| 139 | ?> |