boinc/html/inc/akismet.inc

76 lines
2.7 KiB
PHP

<?php
// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
function akismet_check($user, $post) {
$config = get_config();
$key = parse_config($config, "<akismet_key>");
if (!$key) {
return true;
}
$master_url = parse_config($config, "<master_url>");
$master_url = urlencode($master_url);
$response = akismet_request("key=$key&blog=$master_url", "rest.akismet.com", "/1.1/verify-key");
if ("valid" == $response[1] ) {
$post = urlencode($post);
$ip = urlencode($_SERVER['REMOTE_ADDR']);
$referrer = urlencode($_SERVER['HTTP_REFERER']);
$author = urlencode($user->name);
$useragent = urlencode($_SERVER['HTTP_USER_AGENT']);
$request = "blog=$master_url";
$request .= "&user_ip=$ip";
$request .= "&user_agent=$useragent";
$request .= "&referrer=$referrer";
$request .= "&comment_author=$author";
$request .= "&comment_content=$post";
$response = akismet_request($request, "$key.rest.akismet.com", "/1.1/comment-check");
if ("true" == $response[1]) { // Akismet says it's spam
return false;
} else {
return true;
}
} else {
return true; // invalid key
}
}
function akismet_request($request, $host, $path, $port = 80) {
$http_request = "POST $path HTTP/1.0\r\n";
$http_request .= "Host: $host\r\n";
$http_request .= "Content-Type: application/x-www-form-urlencoded; charset=utf-8\r\n";
$http_request .= "Content-Length: " . strlen($request) . "\r\n";
$http_request .= "User-Agent: BOINC | Akismet 1.1\r\n";
$http_request .= "\r\n";
$http_request .= $request;
$response = '';
if( false !== ( $fs = @fsockopen($host, $port, $errno, $errstr, 3) ) ) {
fwrite($fs, $http_request);
while ( !feof($fs) )
$response .= fgets($fs, 1160); // One TCP-IP packet
fclose($fs);
$response = explode("\r\n\r\n", $response, 2);
}
return $response;
}
?>