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<? |
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|
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class HttpLib { |
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|
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function HttpLib() { |
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|
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} |
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|
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function redirect($args) { |
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|
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// define default parameters |
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|
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$method = 'GET'; |
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$host = ''; |
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$url = ''; |
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$uri = ''; |
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|
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$bool_limitToArgs = 1; |
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//$data = array(); |
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$request_data = ''; |
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$request_data_arr = array(); |
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|
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// process args to parameters |
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|
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isset($args['method']) && ($method = $args['method']); |
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isset($args['host']) && ($host = $args['host']); |
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isset($args['url']) && ($url = $args['url']); |
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isset($args['limitToArgs']) && ($bool_limitToArgs = $args['limitToArgs']); |
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|
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// determine/merge data to be passed on |
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// there are three different kinds of data here: |
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// a) data which is already set from "HTTP_GET_VARS" or "HTTP_POST_VARS" (base) (linked to "$tracking-><state>") |
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// b) data which should modify this (base-)data via "$args['data']" (must be converted to "$request_data"-format) |
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// c) data which should modify this (base-)data via "$args['request_data']" (is already in proper "$request_data"-format) |
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|
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// a) |
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if (!$bool_limitToArgs) { |
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global $HTTP_GET_VARS, $HTTP_POST_VARS; |
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$request_data_arr = array_merge($HTTP_GET_VARS, $HTTP_POST_VARS); |
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} |
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|
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// b) |
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if (isset($args['data'])) { |
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$request_data_arr = array_merge($request_data_arr, $args['data']); |
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unset($request_data_arr['x']); |
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unset($request_data_arr['y']); |
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} |
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|
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// c) (TODO) |
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// TODO: merge both together!!! (for this we'd need a "queryString2ComplexHash()"-function) |
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// isset($args['request_data']) && ($request_data = $args['request_data']); |
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|
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|
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// build "request-data"-string |
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$request_data = $this->getRequestString($request_data_arr); |
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|
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// modify parameters |
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|
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if (!$host) { |
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global $SERVER_NAME; |
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$host = $SERVER_NAME; |
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} |
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if (!$url) { |
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global $PHP_SELF; |
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$url = $PHP_SELF; |
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} |
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|
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/* |
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// Replace 'http://' with the empty string |
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// Get the Host address substring |
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// Get the URI of the desired Resource |
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$url = preg_replace("@^http://@i", "", $url); |
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$host = substr($url, 0, strpos($url, "/")); |
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$uri = strstr($url, "/"); |
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*/ |
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|
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// do redirection |
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|
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switch(strtolower($method)) { |
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|
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case 'get': |
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|
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// build request-string |
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$request_string = $url . '?' . $request_data; |
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//print $request_string . "<br>"; |
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//exit; |
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Header('Location: ' . $request_string); |
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exit; |
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break; |
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|
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case 'post': |
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|
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// DOES NOT WORK!!!! |
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// CAN NOT WORK, because sending a request from here (php-script) will not get the same session associated with the server |
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// maybe we can solve this differently, but for now: forget about POSTing |
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|
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// build cookie-data |
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$varname_PhpSessionId = ini_get('session.name'); |
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global $$varname_PhpSessionId; |
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$sessionid = $$varname_PhpSessionId; |
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$cookie = $varname_PhpSessionId . "=" . $sessionid . ";"; |
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|
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// build request-string |
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$request_header = |
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"POST " . $url . " HTTP/1.1\r\n" . |
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"Host: " . $host . "\r\n" . |
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//"Cookie: " . $cookie . "\r\n" . |
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"Content-type: application/x-www-form-urlencoded\r\n" . |
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"Content-length: " . strlen($request_data) . "\r\n" . |
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"\r\n" . |
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$request_data . |
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"&PHPSESSID=$sessionid" |
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; |
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|
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// debug request-header |
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print $request_header . "<br>"; |
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//exit; |
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|
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// send request (post) and get response |
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if ($response = $this->request($host, 80, $request_header)) { |
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// output response |
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echo "response-begin<br>"; |
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echo $response; |
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echo "<br>"; |
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echo "response-end<br>"; |
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} |
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|
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|
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break; |
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|
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} |
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|
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} |
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|
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function request($host, $port, $request_header) { |
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|
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// open connection to server |
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$fp = fsockopen($host, $port, $err_num, $err_msg, 30); |
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if ($fp) { |
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|
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// send post-request |
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fputs($fp, $request_header); |
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|
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// get response |
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$response = ''; |
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while (!feof($fp)) |
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$response .= fgets($fp, 1024); |
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fclose($fp); |
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|
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return $response; |
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|
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} |
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|
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} |
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|
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|
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function getRequestString($requestData) { |
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$arr_subkeys = array(); |
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$simpleHash = nestedHash2simpleHash($requestData, 0, &$arr_subkeys); |
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$retval = ''; |
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while( list($key, $value) = each($simpleHash) ) { |
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if (!is_array($value)) { |
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$retval .= urlencode($key) . '=' . urlencode($value) . '&'; |
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} |
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} |
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$retval = substr($retval, 0, strlen($retval) - 1); |
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return $retval; |
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} |
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|
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|
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} |
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|
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?> |
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