+++ /dev/null
-<?php
-/**
- * 01.07.2008 22:32:28est
- *
- * Akismet PHP4 class
- *
- * <b>Usage</b>
- * <code>
- * $comment = array(
- * 'author' => 'viagra-test-123',
- * 'email' => 'test@example.com',
- * 'website' => 'http://www.example.com/',
- * 'body' => 'This is a test comment',
- * 'permalink' => 'http://yourdomain.com/yourblogpost.url',
- * );
- *
- * $akismet = new Akismet('http://www.yourdomain.com/', 'YOUR_WORDPRESS_API_KEY', $comment);
- *
- * if($akismet->errorsExist()) {
- * echo"Couldn't connected to Akismet server!";
- * } else {
- * if($akismet->isSpam()) {
- * echo"Spam detected";
- * } else {
- * echo"yay, no spam!";
- * }
- * }
- * </code>
- *
- * @author Bret Kuhns {@link www.miphp.net}
- * @link http://www.miphp.net/blog/view/new_akismet_class/
- * @version 0.3.4
- * @license http://www.opensource.org/licenses/mit-license.php MIT License
- */
-
-
-
-// Error constants
-define("AKISMET_SERVER_NOT_FOUND", 0);
-define("AKISMET_RESPONSE_FAILED", 1);
-define("AKISMET_INVALID_KEY", 2);
-
-
-
-// Base class to assist in error handling between Akismet classes
-class AkismetObject {
- var $errors = array();
-
-
- /**
- * Add a new error to the errors array in the object
- *
- * @param String $name A name (array key) for the error
- * @param String $string The error message
- * @return void
- */
- // Set an error in the object
- function setError($name, $message) {
- $this->errors[$name] = $message;
- }
-
-
- /**
- * Return a specific error message from the errors array
- *
- * @param String $name The name of the error you want
- * @return mixed Returns a String if the error exists, a false boolean if it does not exist
- */
- function getError($name) {
- if($this->isError($name)) {
- return $this->errors[$name];
- } else {
- return false;
- }
- }
-
-
- /**
- * Return all errors in the object
- *
- * @return String[]
- */
- function getErrors() {
- return (array)$this->errors;
- }
-
-
- /**
- * Check if a certain error exists
- *
- * @param String $name The name of the error you want
- * @return boolean
- */
- function isError($name) {
- return isset($this->errors[$name]);
- }
-
-
- /**
- * Check if any errors exist
- *
- * @return boolean
- */
- function errorsExist() {
- return (count($this->errors) > 0);
- }
-
-
-}
-
-
-
-
-
-// Used by the Akismet class to communicate with the Akismet service
-class AkismetHttpClient extends AkismetObject {
- var $akismetVersion = '1.1';
- var $con;
- var $host;
- var $port;
- var $apiKey;
- var $blogUrl;
- var $errors = array();
-
-
- // Constructor
- function AkismetHttpClient($host, $blogUrl, $apiKey, $port = 80) {
- $this->host = $host;
- $this->port = $port;
- $this->blogUrl = $blogUrl;
- $this->apiKey = $apiKey;
- }
-
-
- // Use the connection active in $con to get a response from the server and return that response
- function getResponse($request, $path, $type = "post", $responseLength = 1160) {
- $this->_connect();
-
- if($this->con && !$this->isError(AKISMET_SERVER_NOT_FOUND)) {
- $request =
- strToUpper($type)." /{$this->akismetVersion}/$path HTTP/1.1\r\n" .
- "Host: ".((!empty($this->apiKey)) ? $this->apiKey."." : null)."{$this->host}\r\n" .
- "Content-Type: application/x-www-form-urlencoded; charset=utf-8\r\n" .
- "Content-Length: ".strlen($request)."\r\n" .
- "User-Agent: Akismet PHP4 Class\r\n" .
- "\r\n" .
- $request
- ;
- $response = "";
-
- @fwrite($this->con, $request);
-
- while(!feof($this->con)) {
- $response .= @fgets($this->con, $responseLength);
- }
-
- $response = explode("\r\n\r\n", $response, 2);
- return $response[1];
- } else {
- $this->setError(AKISMET_RESPONSE_FAILED, "The response could not be retrieved.");
- }
-
- $this->_disconnect();
- }
-
-
- // Connect to the Akismet server and store that connection in the instance variable $con
- function _connect() {
- if(!($this->con = @fsockopen($this->host, $this->port))) {
- $this->setError(AKISMET_SERVER_NOT_FOUND, "Could not connect to akismet server.");
- }
- }
-
-
- // Close the connection to the Akismet server
- function _disconnect() {
- @fclose($this->con);
- }
-
-
-}
-
-
-
-
-
-// The controlling class. This is the ONLY class the user should instantiate in
-// order to use the Akismet service!
-class Akismet extends AkismetObject {
- var $apiPort = 80;
- var $akismetServer = 'rest.akismet.com';
- var $akismetVersion = '1.1';
- var $http;
-
- var $ignore = array(
- 'HTTP_COOKIE',
- 'HTTP_X_FORWARDED_FOR',
- 'HTTP_X_FORWARDED_HOST',
- 'HTTP_MAX_FORWARDS',
- 'HTTP_X_FORWARDED_SERVER',
- 'REDIRECT_STATUS',
- 'SERVER_PORT',
- 'PATH',
- 'DOCUMENT_ROOT',
- 'SERVER_ADMIN',
- 'QUERY_STRING',
- 'PHP_SELF',
- 'argv'
- );
-
- var $blogUrl = "";
- var $apiKey = "";
- var $comment = array();
-
-
- /**
- * Constructor
- *
- * Set instance variables, connect to Akismet, and check API key
- *
- * @param String $blogUrl The URL to your own blog
- * @param String $apiKey Your wordpress API key
- * @param String[] $comment A formatted comment array to be examined by the Akismet service
- * @return Akismet
- */
- function Akismet($blogUrl, $apiKey, $comment = array()) {
- $this->blogUrl = $blogUrl;
- $this->apiKey = $apiKey;
- $this->setComment($comment);
-
- // Connect to the Akismet server and populate errors if they exist
- $this->http = new AkismetHttpClient($this->akismetServer, $blogUrl, $apiKey);
- if($this->http->errorsExist()) {
- $this->errors = array_merge($this->errors, $this->http->getErrors());
- }
-
- // Check if the API key is valid
- if(!$this->_isValidApiKey($apiKey)) {
- $this->setError(AKISMET_INVALID_KEY, "Your Akismet API key is not valid.");
- }
- }
-
-
- /**
- * Query the Akismet and determine if the comment is spam or not
- *
- * @return boolean
- */
- function isSpam() {
- $response = $this->http->getResponse($this->_getQueryString(), 'comment-check');
-
- return ($response == "true");
- }
-
-
- /**
- * Submit this comment as an unchecked spam to the Akismet server
- *
- * @return void
- */
- function submitSpam() {
- $this->http->getResponse($this->_getQueryString(), 'submit-spam');
- }
-
-
- /**
- * Submit a false-positive comment as "ham" to the Akismet server
- *
- * @return void
- */
- function submitHam() {
- $this->http->getResponse($this->_getQueryString(), 'submit-ham');
- }
-
-
- /**
- * Manually set the comment value of the instantiated object.
- *
- * @param Array $comment
- * @return void
- */
- function setComment($comment) {
- $this->comment = $comment;
- if(!empty($comment)) {
- $this->_formatCommentArray();
- $this->_fillCommentValues();
- }
- }
-
-
- /**
- * Returns the current value of the object's comment array.
- *
- * @return Array
- */
- function getComment() {
- return $this->comment;
- }
-
-
- /**
- * Check with the Akismet server to determine if the API key is valid
- *
- * @access Protected
- * @param String $key The Wordpress API key passed from the constructor argument
- * @return boolean
- */
- function _isValidApiKey($key) {
- $keyCheck = $this->http->getResponse("key=".$this->apiKey."&blog=".$this->blogUrl, 'verify-key');
-
- return ($keyCheck == "valid");
- }
-
-
- /**
- * Format the comment array in accordance to the Akismet API
- *
- * @access Protected
- * @return void
- */
- function _formatCommentArray() {
- $format = array(
- 'type' => 'comment_type',
- 'author' => 'comment_author',
- 'email' => 'comment_author_email',
- 'website' => 'comment_author_url',
- 'body' => 'comment_content'
- );
-
- foreach($format as $short => $long) {
- if(isset($this->comment[$short])) {
- $this->comment[$long] = $this->comment[$short];
- unset($this->comment[$short]);
- }
- }
- }
-
-
- /**
- * Fill any values not provided by the developer with available values.
- *
- * @return void
- */
- function _fillCommentValues() {
- if(!isset($this->comment['user_ip'])) {
- $this->comment['user_ip'] = ($_SERVER['REMOTE_ADDR'] != getenv('SERVER_ADDR')) ? $_SERVER['REMOTE_ADDR'] : getenv('HTTP_X_FORWARDED_FOR');
- }
- if(!isset($this->comment['user_agent'])) {
- $this->comment['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
- }
- if(!isset($this->comment['referrer'])) {
- $this->comment['referrer'] = $_SERVER['HTTP_REFERER'];
- }
- if(!isset($this->comment['blog'])) {
- $this->comment['blog'] = $this->blogUrl;
- }
- }
-
-
- /**
- * Build a query string for use with HTTP requests
- *
- * @access Protected
- * @return String
- */
- function _getQueryString() {
- foreach($_SERVER as $key => $value) {
- if(!in_array($key, $this->ignore)) {
- if($key == 'REMOTE_ADDR') {
- $this->comment[$key] = $this->comment['user_ip'];
- } else {
- $this->comment[$key] = $value;
- }
- }
- }
-
- $query_string = '';
-
- foreach($this->comment as $key => $data) {
- $query_string .= $key . '=' . urlencode(stripslashes($data)) . '&';
- }
-
- return $query_string;
- }
-
-
-}
-?>
\ No newline at end of file