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| | |
| | | <?php |
| | | |
| | | /* |
| | | Copyright (c) 2013, Marius Cramer, pixcept KG |
| | | All rights reserved. |
| | | |
| | | Redistribution and use in source and binary forms, with or without modification, |
| | | are permitted provided that the following conditions are met: |
| | | |
| | | * Redistributions of source code must retain the above copyright notice, |
| | | this list of conditions and the following disclaimer. |
| | | * Redistributions in binary form must reproduce the above copyright notice, |
| | | this list of conditions and the following disclaimer in the documentation |
| | | and/or other materials provided with the distribution. |
| | | * Neither the name of ISPConfig nor the names of its contributors |
| | | may be used to endorse or promote products derived from this software without |
| | | specific prior written permission. |
| | | |
| | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| | | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| | | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| | | IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| | | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| | | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| | | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| | | OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| | | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| | | EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | | */ |
| | | |
| | | //* The purpose of this library is to provide some general functions. |
| | | //* This class is loaded automatically by the ispconfig framework. |
| | | |
| | | abstract class ISPConfigRequest { |
| | | /** |
| | | * Get header data and contents from an url |
| | | * |
| | | * Calls an url and returns an array containing the http header and the page content |
| | | * |
| | | * @access public |
| | | * @param string $url the url to call |
| | | * @param string $store_in the file to store the data in instead of returning them |
| | | * @return array The array with header data at index 0 and page content at index 1, returns boolean false on error. If $store_in is set only the headers are returned |
| | | */ |
| | | |
| | | |
| | | public static function get_with_headers($url, $store_in = null, $follow_redirects = false, $user_agent = false) { |
| | | if($follow_redirects === true) $follow_redirects = 5; |
| | | elseif($follow_redirects !== false) $follow_redirects--; |
| | | |
| | | if(!$user_agent) $user_agent = 'pxFW GET proxy'; |
| | | |
| | | $url_info = parse_url($url); |
| | | if(isset($url_info['scheme']) && $url_info['scheme'] == 'https') { |
| | | $port = isset($url_info['port']) ? $url_info['port'] : 443; |
| | | //@$fp = stream_socket_client('ssl://' . $url_info['host'] . ':' . $port, $errno, $errstr, 10, STREAM_CLIENT_CONNECT, stream_context_create(array('ssl' => array('ciphers' => 'ALL:!AES:!3DES:!RC4:@STRENGTH')))); |
| | | @$fp = fsockopen('sslv3://' . $url_info['host'], $port, $errno, $errstr, 10); |
| | | } else { |
| | | $port = isset($url_info['port']) ? $url_info['port'] : 80; |
| | | @$fp = fsockopen($url_info['host'], $port, $errno, $errstr, 10); |
| | | } |
| | | |
| | | if($store_in) { |
| | | $outfp = fopen($store_in, 'w'); |
| | | if(!$outfp) return false; |
| | | } |
| | | if($fp) { |
| | | stream_set_timeout($fp, 10); |
| | | $head = 'GET ' . (isset($url_info['path']) ? $url_info['path'] : '/') . (isset($url_info['query']) ? '?' . $url_info['query'] : ''); |
| | | $head .= " HTTP/1.0\r\nHost: " . (isset($url_info['host']) ? $url_info['host'] : '') . "\r\n"; |
| | | $head .= "User-Agent: " . $user_agent . "\r\n"; |
| | | if(isset($url_info['user'])) { |
| | | if(!array_key_exists('pass', $url_info)) $url_info['pass'] = ''; |
| | | $head .= "Authorization: basic " . base64_encode($url_info['user'] . ':' . $url_info['pass']) . "\r\n"; |
| | | } |
| | | $head .= "Connection: Close\r\n"; |
| | | $head .= "Accept: */*\r\n\r\n"; |
| | | |
| | | $data = ''; |
| | | $eoheader = false; |
| | | fputs($fp, $head); |
| | | while(!feof($fp)) { |
| | | if($header = fgets($fp, 1024)) { |
| | | if($eoheader == true) { |
| | | if($store_in) fputs($outfp, $header); |
| | | else $data .= $header; |
| | | continue; |
| | | } |
| | | |
| | | if ($header == "\r\n") { |
| | | $eoheader = true; |
| | | continue; |
| | | } else { |
| | | $header = trim($header); |
| | | } |
| | | $sc_pos = strpos($header, ':'); |
| | | if($sc_pos === false) { |
| | | $headers['status'] = $header; |
| | | $headers['http_code'] = intval(preg_replace('/^HTTP\/\d+\.\d+\s+(\d+)\s+.*$/', '$1', $header)); |
| | | } else { |
| | | $label = substr($header, 0, $sc_pos); |
| | | $value = substr($header, $sc_pos + 1); |
| | | $headers[strtolower($label)] = trim($value); |
| | | } |
| | | } |
| | | } |
| | | fclose($fp); |
| | | if(isset($headers['http_code']) && isset($headers['location']) && ($headers['http_code'] == 301 || $headers['http_code'] == 302) && $follow_redirects > 0) { |
| | | if($store_in) fclose($outfp); |
| | | return $self::get_with_headers($headers['location'], $store_in, $follow_redirects); |
| | | } |
| | | if($store_in) { |
| | | fclose($outfp); |
| | | |
| | | $code = intval(preg_replace('/^HTTP\/\d+\.\d+\s+(\d+)\s+.*$/', '$1', $headers['status'])); |
| | | if($code != 200) { |
| | | return false; |
| | | } |
| | | return $headers; |
| | | } else { |
| | | return array($headers, $data); |
| | | } |
| | | } else { |
| | | if($store_in) { |
| | | fclose($outfp); |
| | | @unlink($store_in); |
| | | } |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Gets the content of an url |
| | | * |
| | | * Checks for the php function file_get_contents and uses an alternative if not found |
| | | * |
| | | * @access public |
| | | * @param string $url url to get |
| | | * @return string url data including headers |
| | | * @see file_get_contents |
| | | */ |
| | | public static function get($url) { |
| | | if(function_exists('file_get_contents')) return file_get_contents($url); |
| | | |
| | | $fp = fopen($url, 'r'); |
| | | $data = ''; |
| | | while(!feof($fp)) { |
| | | $data .= fgets($fp, 8192); |
| | | } |
| | | fclose($fp); |
| | | |
| | | return $data; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Make a post request and get data |
| | | * |
| | | * Calls an url with a post request and returns the data - and optionally the header content |
| | | * |
| | | * @access public |
| | | * @param string $url the url to call |
| | | * @param string $data the post data to send |
| | | * @param bool $get_headers if true, the function will return an array like PXUrl::get_with_headers(), otherwise the content is returned as a string |
| | | * @return mixed Content data as string or - if get_headers is true - the array with header data at index 0 and page content at index 1 |
| | | * @see get_url_and_headers |
| | | */ |
| | | public static function post($url, $data, $get_headers = false, $user_agent = false) { |
| | | $url_info = parse_url($url); |
| | | if((isset($url_info['scheme']) && $url_info['scheme'] == 'https') || $url_info['port'] == 443) { |
| | | $port = (!isset($url_info['port']) || !$url_info['port'] || $url_info['port'] == 443 || $url_info['port'] == 80) ? 443 : $url_info['port']; |
| | | //@$fp = stream_socket_client('ssl://' . $url_info['host'] . ':' . $port, $errno, $errstr, 10, STREAM_CLIENT_CONNECT, stream_context_create(array('ssl' => array('ciphers' => 'ALL:!AES:!3DES:!RC4:@STRENGTH')))); |
| | | @$fp = fsockopen('sslv3://' . $url_info['host'], $port, $errno, $errstr, 10); |
| | | } else { |
| | | $port = isset($url_info['port']) ? $url_info['port'] : 80; |
| | | @$fp = fsockopen($url_info['host'], $port, $errno, $errstr, 10); |
| | | } |
| | | |
| | | if(!$fp) return ''; |
| | | |
| | | if(!$user_agent) $user_agent = 'pxFW GET proxy'; |
| | | |
| | | $header = 'POST ' . (isset($url_info['path']) ? $url_info['path'] : '/') . (isset($url_info['query']) ? '?' . @$url_info['query'] : '') . " HTTP/1.1\r\n"; |
| | | $header .= "Host: " . @$url_info['host'] . "\r\n"; |
| | | $header .= "User-Agent: " . $user_agent . "\r\n"; |
| | | if(isset($url_info['user'])) { |
| | | if(!array_key_exists('pass', $url_info)) $url_info['pass'] = ''; |
| | | $header .= "Authorization: basic " . base64_encode($url_info['user'] . ':' . $url_info['pass']) . "\r\n"; |
| | | } |
| | | $header .= "Content-Type: application/x-www-form-urlencoded\r\n"; |
| | | $header .= "Content-Length: " . strlen($data) . "\r\n"; |
| | | $header .= "Connection: close\r\n\r\n"; |
| | | $header .= $data . "\r\n\r\n"; |
| | | |
| | | fwrite($fp, $header); |
| | | |
| | | $response = ''; |
| | | $eoheader = false; |
| | | $header = ''; |
| | | $tmpdata = ''; |
| | | $chunked = false; |
| | | $chunklen = 0; |
| | | |
| | | while(!feof($fp)) { |
| | | if($header = @fgets($fp, 1024)) { |
| | | if($eoheader == true) { |
| | | $response .= $header; |
| | | continue; |
| | | } |
| | | |
| | | if ($header == "\r\n") { |
| | | $eoheader = true; |
| | | continue; |
| | | } else { |
| | | $tmpdata .= $header; |
| | | if(preg_match('/Transfer-Encoding:\s+chunked/i', $tmpdata)) $chunked = true; |
| | | } |
| | | } |
| | | } |
| | | //var_dump($response, $chunked, $header); |
| | | if($chunked == true) { |
| | | $lines = explode("\n", $response); |
| | | $response = ''; |
| | | $chunklen = 0; |
| | | foreach($lines as $line) { |
| | | $line .= "\n"; |
| | | if($chunklen <= 0) { |
| | | if(preg_match('/^([0-9a-f]+)\s*$/is', $line, $matches)) { |
| | | $chunklen = hexdec($matches[1]); |
| | | } |
| | | continue; |
| | | } |
| | | |
| | | if(strlen($line) > $chunklen) { |
| | | //echo "Warnung: " . strlen($line) . " > " . $chunklen . "\n"; |
| | | $line = substr($line, 0, $chunklen); |
| | | } |
| | | $response .= $line; |
| | | $chunklen -= strlen($line); |
| | | } |
| | | |
| | | $start = strpos($response, '<?xml'); |
| | | $end = strrpos($response, '>'); |
| | | if($start !== false && $end !== false) $response = substr($response, $start, $end - $start + 1); |
| | | } |
| | | |
| | | fclose($fp); |
| | | |
| | | if($get_headers == true) { |
| | | $tmpheaders = explode("\n", $tmpdata); |
| | | $headers = array(); |
| | | foreach($tmpheaders as $cur) { |
| | | if(preg_match('/^(\w+)\:\s*(.*)$/is', $cur, $matches)) { |
| | | $headers["$matches[1]"] = trim($matches[2]); |
| | | } |
| | | } |
| | | return array($headers, $response); |
| | | } else return $response; |
| | | } |
| | | |
| | | } |
| | | |
| | | ?> |