diff options
Diffstat (limited to 'lib/smarty3/plugins/function.fetch.php')
| -rw-r--r-- | lib/smarty3/plugins/function.fetch.php | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/lib/smarty3/plugins/function.fetch.php b/lib/smarty3/plugins/function.fetch.php new file mode 100644 index 0000000..cb60dd9 --- /dev/null +++ b/lib/smarty3/plugins/function.fetch.php @@ -0,0 +1,221 @@ +<?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 $template template object + * + * @throws SmartyException + * @return string|null if the assign parameter is passed, Smarty assigns the result to a template variable + */ +function smarty_function_fetch($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; + } +} |