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