| 1 | <?php |
| 2 | /** |
| 3 | * Smarty plugin |
| 4 | * @package Smarty |
| 5 | * @subpackage plugins |
| 6 | */ |
| 7 | |
| 8 | |
| 9 | /** |
| 10 | * Smarty {fetch} plugin |
| 11 | * |
| 12 | * Type: function<br> |
| 13 | * Name: fetch<br> |
| 14 | * Purpose: fetch file, web or ftp data and display results |
| 15 | * @link http://smarty.php.net/manual/en/language.function.fetch.php {fetch} |
| 16 | * (Smarty online manual) |
| 17 | * @param array |
| 18 | * @param Smarty |
| 19 | * @return string|null if the assign parameter is passed, Smarty assigns the |
| 20 | * result to a template variable |
| 21 | */ |
| 22 | function smarty_function_fetch($params, &$smarty) |
| 23 | { |
| 24 | if (empty($params['file'])) { |
| 25 | $smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty"); |
| 26 | return; |
| 27 | } |
| 28 | |
| 29 | if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) { |
| 30 | $_params = array('resource_type' => 'file', 'resource_name' => $params['file']); |
| 31 | require_once(SMARTY_DIR . 'core' . DIRECTORY_SEPARATOR . 'core.is_secure.php'); |
| 32 | if(!smarty_core_is_secure($_params, $smarty)) { |
| 33 | $smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed'); |
| 34 | return; |
| 35 | } |
| 36 | |
| 37 | // fetch the file |
| 38 | if($fp = @fopen($params['file'],'r')) { |
| 39 | while(!feof($fp)) { |
| 40 | $content .= fgets ($fp,4096); |
| 41 | } |
| 42 | fclose($fp); |
| 43 | } else { |
| 44 | $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\''); |
| 45 | return; |
| 46 | } |
| 47 | } else { |
| 48 | // not a local file |
| 49 | if(preg_match('!^http://!i',$params['file'])) { |
| 50 | // http fetch |
| 51 | if($uri_parts = parse_url($params['file'])) { |
| 52 | // set defaults |
| 53 | $host = $server_name = $uri_parts['host']; |
| 54 | $timeout = 30; |
| 55 | $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; |
| 56 | $agent = "Smarty Template Engine ".$smarty->_version; |
| 57 | $referer = ""; |
| 58 | $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/'; |
| 59 | $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : ''; |
| 60 | $_is_proxy = false; |
| 61 | if(empty($uri_parts['port'])) { |
| 62 | $port = 80; |
| 63 | } else { |
| 64 | $port = $uri_parts['port']; |
| 65 | } |
| 66 | if(empty($uri_parts['user'])) { |
| 67 | $user = ''; |
| 68 | } |
| 69 | // loop through parameters, setup headers |
| 70 | foreach($params as $param_key => $param_value) { |
| 71 | switch($param_key) { |
| 72 | case "file": |
| 73 | case "assign": |
| 74 | case "assign_headers": |
| 75 | break; |
| 76 | case "user": |
| 77 | if(!empty($param_value)) { |
| 78 | $user = $param_value; |
| 79 | } |
| 80 | break; |
| 81 | case "pass": |
| 82 | if(!empty($param_value)) { |
| 83 | $pass = $param_value; |
| 84 | } |
| 85 | break; |
| 86 | case "accept": |
| 87 | if(!empty($param_value)) { |
| 88 | $accept = $param_value; |
| 89 | } |
| 90 | break; |
| 91 | case "header": |
| 92 | if(!empty($param_value)) { |
| 93 | if(!preg_match('![\w\d-]+: .+!',$param_value)) { |
| 94 | $smarty->_trigger_fatal_error("[plugin] invalid header format '".$param_value."'"); |
| 95 | return; |
| 96 | } else { |
| 97 | $extra_headers[] = $param_value; |
| 98 | } |
| 99 | } |
| 100 | break; |
| 101 | case "proxy_host": |
| 102 | if(!empty($param_value)) { |
| 103 | $proxy_host = $param_value; |
| 104 | } |
| 105 | break; |
| 106 | case "proxy_port": |
| 107 | if(!preg_match('!\D!', $param_value)) { |
| 108 | $proxy_port = (int) $param_value; |
| 109 | } else { |
| 110 | $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'"); |
| 111 | return; |
| 112 | } |
| 113 | break; |
| 114 | case "agent": |
| 115 | if(!empty($param_value)) { |
| 116 | $agent = $param_value; |
| 117 | } |
| 118 | break; |
| 119 | case "referer": |
| 120 | if(!empty($param_value)) { |
| 121 | $referer = $param_value; |
| 122 | } |
| 123 | break; |
| 124 | case "timeout": |
| 125 | if(!preg_match('!\D!', $param_value)) { |
| 126 | $timeout = (int) $param_value; |
| 127 | } else { |
| 128 | $smarty->_trigger_fatal_error("[plugin] invalid value for attribute '".$param_key."'"); |
| 129 | return; |
| 130 | } |
| 131 | break; |
| 132 | default: |
| 133 | $smarty->_trigger_fatal_error("[plugin] unrecognized attribute '".$param_key."'"); |
| 134 | return; |
| 135 | } |
| 136 | } |
| 137 | if(!empty($proxy_host) && !empty($proxy_port)) { |
| 138 | $_is_proxy = true; |
| 139 | $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout); |
| 140 | } else { |
| 141 | $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout); |
| 142 | } |
| 143 | |
| 144 | if(!$fp) { |
| 145 | $smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)"); |
| 146 | return; |
| 147 | } else { |
| 148 | if($_is_proxy) { |
| 149 | fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n"); |
| 150 | } else { |
| 151 | fputs($fp, "GET $uri HTTP/1.0\r\n"); |
| 152 | } |
| 153 | if(!empty($host)) { |
| 154 | fputs($fp, "Host: $host\r\n"); |
| 155 | } |
| 156 | if(!empty($accept)) { |
| 157 | fputs($fp, "Accept: $accept\r\n"); |
| 158 | } |
| 159 | if(!empty($agent)) { |
| 160 | fputs($fp, "User-Agent: $agent\r\n"); |
| 161 | } |
| 162 | if(!empty($referer)) { |
| 163 | fputs($fp, "Referer: $referer\r\n"); |
| 164 | } |
| 165 | if(isset($extra_headers) && is_array($extra_headers)) { |
| 166 | foreach($extra_headers as $curr_header) { |
| 167 | fputs($fp, $curr_header."\r\n"); |
| 168 | } |
| 169 | } |
| 170 | if(!empty($user) && !empty($pass)) { |
| 171 | fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n"); |
| 172 | } |
| 173 | |
| 174 | $content = ''; |
| 175 | fputs($fp, "\r\n"); |
| 176 | while(!feof($fp)) { |
| 177 | $content .= fgets($fp,4096); |
| 178 | } |
| 179 | fclose($fp); |
| 180 | $csplit = split("\r\n\r\n",$content,2); |
| 181 | |
| 182 | $content = $csplit[1]; |
| 183 | |
| 184 | if(!empty($params['assign_headers'])) { |
| 185 | $smarty->assign($params['assign_headers'],split("\r\n",$csplit[0])); |
| 186 | } |
| 187 | } |
| 188 | } else { |
| 189 | $smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax"); |
| 190 | return; |
| 191 | } |
| 192 | } else { |
| 193 | // ftp fetch |
| 194 | if($fp = @fopen($params['file'],'r')) { |
| 195 | while(!feof($fp)) { |
| 196 | $content .= fgets ($fp,4096); |
| 197 | } |
| 198 | fclose($fp); |
| 199 | } else { |
| 200 | $smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] .'\''); |
| 201 | return; |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | } |
| 206 | |
| 207 | |
| 208 | if (!empty($params['assign'])) { |
| 209 | $smarty->assign($params['assign'],$content); |
| 210 | } else { |
| 211 | return $content; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | /* vim: set expandtab: */ |
| 216 | |
| 217 | ?> |