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218 lines
8.8 KiB
218 lines
8.8 KiB
<?php |
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/** |
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* Smarty plugin |
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* @package Smarty |
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* @subpackage plugins |
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*/ |
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/** |
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* Smarty {fetch} plugin |
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* |
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* Type: function<br> |
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* Name: fetch<br> |
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* Purpose: fetch file, web or ftp data and display results |
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* @link http://smarty.php.net/manual/en/language.function.fetch.php {fetch} |
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* (Smarty online manual) |
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* @author Monte Ohrt <monte at ohrt dot com> |
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* @param array |
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* @param Smarty |
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* @return string|null if the assign parameter is passed, Smarty assigns the |
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* result to a template variable |
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*/ |
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function smarty_function_fetch($params, &$smarty) { |
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if (empty($params['file'])) { |
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$smarty->_trigger_fatal_error("[plugin] parameter 'file' cannot be empty"); |
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return; |
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} |
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$content = ''; |
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if ($smarty->security && !preg_match('!^(http|ftp)://!i', $params['file'])) { |
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$_params = array('resource_type' => 'file', 'resource_name' => $params['file']); |
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require_once(SMARTY_CORE_DIR . 'core.is_secure.php'); |
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if (!smarty_core_is_secure($_params, $smarty)) { |
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$smarty->_trigger_fatal_error('[plugin] (secure mode) fetch \'' . $params['file'] . '\' is not allowed'); |
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return; |
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} |
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// fetch the file |
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if ($fp = @fopen($params['file'], 'r')) { |
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while (!feof($fp)) { |
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$content .= fgets($fp, 4096); |
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} |
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fclose($fp); |
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} else { |
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$smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\''); |
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return; |
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} |
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} else { |
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// not a local file |
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if (preg_match('!^http://!i', $params['file'])) { |
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// http fetch |
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if ($uri_parts = parse_url($params['file'])) { |
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// set defaults |
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$host = $server_name = $uri_parts['host']; |
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$timeout = 30; |
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$accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; |
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$agent = "Smarty Template Engine " . $smarty->_version; |
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$referer = ""; |
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$uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/'; |
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$uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : ''; |
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$_is_proxy = false; |
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if (empty($uri_parts['port'])) { |
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$port = 80; |
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} else { |
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$port = $uri_parts['port']; |
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} |
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if (!empty($uri_parts['user'])) { |
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$user = $uri_parts['user']; |
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} |
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if (!empty($uri_parts['pass'])) { |
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$pass = $uri_parts['pass']; |
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} |
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// loop through parameters, setup headers |
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foreach ($params as $param_key => $param_value) { |
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switch ($param_key) { |
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case "file": |
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case "assign": |
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case "assign_headers": |
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break; |
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case "user": |
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if (!empty($param_value)) { |
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$user = $param_value; |
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} |
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break; |
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case "pass": |
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if (!empty($param_value)) { |
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$pass = $param_value; |
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} |
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break; |
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case "accept": |
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if (!empty($param_value)) { |
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$accept = $param_value; |
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} |
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break; |
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case "header": |
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if (!empty($param_value)) { |
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if (!preg_match('![\w\d-]+: .+!', $param_value)) { |
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$smarty->_trigger_fatal_error("[plugin] invalid header format '" . $param_value . "'"); |
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return; |
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} else { |
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$extra_headers[] = $param_value; |
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} |
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} |
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break; |
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case "proxy_host": |
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if (!empty($param_value)) { |
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$proxy_host = $param_value; |
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} |
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break; |
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case "proxy_port": |
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if (!preg_match('!\D!', $param_value)) { |
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$proxy_port = (int) $param_value; |
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} else { |
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$smarty->_trigger_fatal_error("[plugin] invalid value for attribute '" . $param_key . "'"); |
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return; |
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} |
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break; |
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case "agent": |
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if (!empty($param_value)) { |
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$agent = $param_value; |
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} |
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break; |
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case "referer": |
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if (!empty($param_value)) { |
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$referer = $param_value; |
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} |
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break; |
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case "timeout": |
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if (!preg_match('!\D!', $param_value)) { |
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$timeout = (int) $param_value; |
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} else { |
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$smarty->_trigger_fatal_error("[plugin] invalid value for attribute '" . $param_key . "'"); |
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return; |
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} |
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break; |
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default: |
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$smarty->_trigger_fatal_error("[plugin] unrecognized attribute '" . $param_key . "'"); |
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return; |
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} |
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} |
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if (!empty($proxy_host) && !empty($proxy_port)) { |
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$_is_proxy = true; |
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$fp = fsockopen($proxy_host, $proxy_port, $errno, $errstr, $timeout); |
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} else { |
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$fp = fsockopen($server_name, $port, $errno, $errstr, $timeout); |
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} |
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if (!$fp) { |
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$smarty->_trigger_fatal_error("[plugin] unable to fetch: $errstr ($errno)"); |
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return; |
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} else { |
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if ($_is_proxy) { |
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fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n"); |
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} else { |
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fputs($fp, "GET $uri HTTP/1.0\r\n"); |
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} |
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if (!empty($host)) { |
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fputs($fp, "Host: $host\r\n"); |
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} |
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if (!empty($accept)) { |
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fputs($fp, "Accept: $accept\r\n"); |
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} |
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if (!empty($agent)) { |
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fputs($fp, "User-Agent: $agent\r\n"); |
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} |
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if (!empty($referer)) { |
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fputs($fp, "Referer: $referer\r\n"); |
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} |
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if (isset($extra_headers) && is_array($extra_headers)) { |
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foreach ($extra_headers as $curr_header) { |
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fputs($fp, $curr_header . "\r\n"); |
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} |
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} |
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if (!empty($user) && !empty($pass)) { |
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fputs($fp, "Authorization: BASIC " . base64_encode("$user:$pass") . "\r\n"); |
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} |
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fputs($fp, "\r\n"); |
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while (!feof($fp)) { |
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$content .= fgets($fp, 4096); |
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} |
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fclose($fp); |
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$csplit = explode("\r\n\r\n", $content, 2); |
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$content = $csplit[1]; |
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if (!empty($params['assign_headers'])) { |
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$smarty->assign($params['assign_headers'], split("\r\n", $csplit[0])); |
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} |
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} |
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} else { |
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$smarty->_trigger_fatal_error("[plugin] unable to parse URL, check syntax"); |
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return; |
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} |
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} else { |
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// ftp fetch |
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if ($fp = @fopen($params['file'], 'r')) { |
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while (!feof($fp)) { |
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$content .= fgets($fp, 4096); |
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} |
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fclose($fp); |
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} else { |
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$smarty->_trigger_fatal_error('[plugin] fetch cannot read file \'' . $params['file'] . '\''); |
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return; |
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} |
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} |
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} |
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if (!empty($params['assign'])) { |
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$smarty->assign($params['assign'], $content); |
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} else { |
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return $content; |
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} |
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} |
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/* vim: set expandtab: */ |
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?>
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