diff options
Diffstat (limited to 'lib/smarty/libs/plugins/function.fetch.php')
| -rw-r--r-- | lib/smarty/libs/plugins/function.fetch.php | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/lib/smarty/libs/plugins/function.fetch.php b/lib/smarty/libs/plugins/function.fetch.php new file mode 100644 index 000000000..eca1182d5 --- /dev/null +++ b/lib/smarty/libs/plugins/function.fetch.php @@ -0,0 +1,214 @@ +<?php +/** + * Smarty plugin + * + * @package Smarty + * @subpackage PluginsFunction + */ + +/** + * Smarty {fetch} plugin + * + * Type: function<br> + * Name: fetch<br> + * Purpose: fetch file, web or ftp data and display results + * + * @link http://www.smarty.net/manual/en/language.function.fetch.php {fetch} + * (Smarty online manual) + * @author Monte Ohrt <monte at ohrt dot com> + * @param array $params parameters + * @param Smarty_Internal_Template $template template object + * @return string|null if the assign parameter is passed, Smarty assigns the result to a template variable + */ +function smarty_function_fetch($params, $template) +{ + if (empty($params['file'])) { + trigger_error("[plugin] fetch parameter 'file' cannot be empty",E_USER_NOTICE); + return; + } + + // 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($params['file'])) { + return; + } + } + } + + $content = ''; + if ($protocol == 'http') { + // http fetch + if($uri_parts = parse_url($params['file'])) { + // set defaults + $host = $server_name = $uri_parts['host']; + $timeout = 30; + $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; + $agent = "Smarty Template Engine ". Smarty::SMARTY_VERSION; + $referer = ""; + $uri = !empty($uri_parts['path']) ? $uri_parts['path'] : '/'; + $uri .= !empty($uri_parts['query']) ? '?' . $uri_parts['query'] : ''; + $_is_proxy = false; + if(empty($uri_parts['port'])) { + $port = 80; + } else { + $port = $uri_parts['port']; + } + if(!empty($uri_parts['user'])) { + $user = $uri_parts['user']; + } + if(!empty($uri_parts['pass'])) { + $pass = $uri_parts['pass']; + } + // loop through parameters, setup headers + foreach($params as $param_key => $param_value) { + switch($param_key) { + case "file": + case "assign": + case "assign_headers": + break; + case "user": + if(!empty($param_value)) { + $user = $param_value; + } + break; + case "pass": + if(!empty($param_value)) { + $pass = $param_value; + } + break; + case "accept": + if(!empty($param_value)) { + $accept = $param_value; + } + break; + case "header": + if(!empty($param_value)) { + if(!preg_match('![\w\d-]+: .+!',$param_value)) { + trigger_error("[plugin] invalid header format '".$param_value."'",E_USER_NOTICE); + return; + } else { + $extra_headers[] = $param_value; + } + } + break; + case "proxy_host": + if(!empty($param_value)) { + $proxy_host = $param_value; + } + break; + case "proxy_port": + if(!preg_match('!\D!', $param_value)) { + $proxy_port = (int) $param_value; + } else { + trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE); + return; + } + break; + case "agent": + if(!empty($param_value)) { + $agent = $param_value; + } + break; + case "referer": + if(!empty($param_value)) { + $referer = $param_value; + } + break; + case "timeout": + if(!preg_match('!\D!', $param_value)) { + $timeout = (int) $param_value; + } else { + trigger_error("[plugin] invalid value for attribute '".$param_key."'",E_USER_NOTICE); + return; + } + break; + default: + trigger_error("[plugin] unrecognized attribute '".$param_key."'",E_USER_NOTICE); + return; + } + } + if(!empty($proxy_host) && !empty($proxy_port)) { + $_is_proxy = true; + $fp = fsockopen($proxy_host,$proxy_port,$errno,$errstr,$timeout); + } else { + $fp = fsockopen($server_name,$port,$errno,$errstr,$timeout); + } + + if(!$fp) { + trigger_error("[plugin] unable to fetch: $errstr ($errno)",E_USER_NOTICE); + return; + } else { + if($_is_proxy) { + fputs($fp, 'GET ' . $params['file'] . " HTTP/1.0\r\n"); + } else { + fputs($fp, "GET $uri HTTP/1.0\r\n"); + } + if(!empty($host)) { + fputs($fp, "Host: $host\r\n"); + } + if(!empty($accept)) { + fputs($fp, "Accept: $accept\r\n"); + } + if(!empty($agent)) { + fputs($fp, "User-Agent: $agent\r\n"); + } + if(!empty($referer)) { + fputs($fp, "Referer: $referer\r\n"); + } + if(isset($extra_headers) && is_array($extra_headers)) { + foreach($extra_headers as $curr_header) { + fputs($fp, $curr_header."\r\n"); + } + } + if(!empty($user) && !empty($pass)) { + fputs($fp, "Authorization: BASIC ".base64_encode("$user:$pass")."\r\n"); + } + + fputs($fp, "\r\n"); + while(!feof($fp)) { + $content .= fgets($fp,4096); + } + fclose($fp); + $csplit = preg_split("!\r\n\r\n!",$content,2); + + $content = $csplit[1]; + + if(!empty($params['assign_headers'])) { + $template->assign($params['assign_headers'],preg_split("!\r\n!",$csplit[0])); + } + } + } else { + trigger_error("[plugin fetch] unable to parse URL, check syntax",E_USER_NOTICE); + return; + } + } else { + $content = @file_get_contents($params['file']); + if ($content === false) { + throw new SmartyException("{fetch} cannot read resource '" . $params['file'] ."'"); + } + } + + if (!empty($params['assign'])) { + $template->assign($params['assign'], $content); + } else { + return $content; + } +} + +?>
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