diff options
Diffstat (limited to 'system/libraries/Trackback.php')
| -rw-r--r-- | system/libraries/Trackback.php | 234 |
1 files changed, 93 insertions, 141 deletions
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php index b0a767822..9a680dc2a 100644 --- a/system/libraries/Trackback.php +++ b/system/libraries/Trackback.php @@ -1,20 +1,30 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ -// ------------------------------------------------------------------------ - /** * Trackback Class * @@ -23,26 +33,21 @@ * @package CodeIgniter * @subpackage Libraries * @category Trackbacks - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/libraries/trackback.html */ class CI_Trackback { - var $time_format = 'local'; - var $charset = 'UTF-8'; - var $data = array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => ''); - var $convert_ascii = TRUE; - var $response = ''; - var $error_msg = array(); + public $time_format = 'local'; + public $charset = 'UTF-8'; + public $data = array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => ''); + public $convert_ascii = TRUE; + public $response = ''; + public $error_msg = array(); - /** - * Constructor - * - * @access public - */ public function __construct() { - log_message('debug', "Trackback Class Initialized"); + log_message('debug', 'Trackback Class Initialized'); } // -------------------------------------------------------------------- @@ -50,11 +55,10 @@ class CI_Trackback { /** * Send Trackback * - * @access public * @param array * @return bool */ - function send($tb_data) + public function send($tb_data) { if ( ! is_array($tb_data)) { @@ -84,27 +88,17 @@ class CI_Trackback { } // Convert High ASCII Characters - if ($this->convert_ascii == TRUE) + if ($this->convert_ascii === TRUE && in_array($item, array('excerpt', 'title', 'blog_name'))) { - if ($item == 'excerpt') - { - $$item = $this->convert_ascii($$item); - } - elseif ($item == 'title') - { - $$item = $this->convert_ascii($$item); - } - elseif ($item == 'blog_name') - { - $$item = $this->convert_ascii($$item); - } + $$item = $this->convert_ascii($$item); } } // Build the Trackback data string - $charset = ( ! isset($tb_data['charset'])) ? $this->charset : $tb_data['charset']; + $charset = isset($tb_data['charset']) ? $tb_data['charset'] : $this->charset; - $data = "url=".rawurlencode($url)."&title=".rawurlencode($title)."&blog_name=".rawurlencode($blog_name)."&excerpt=".rawurlencode($excerpt)."&charset=".rawurlencode($charset); + $data = 'url='.rawurlencode($url).'&title='.rawurlencode($title).'&blog_name='.rawurlencode($blog_name) + .'&excerpt='.rawurlencode($excerpt).'&charset='.rawurlencode($charset); // Send Trackback(s) $return = TRUE; @@ -112,7 +106,7 @@ class CI_Trackback { { foreach ($ping_url as $url) { - if ($this->process($url, $data) == FALSE) + if ($this->process($url, $data) === FALSE) { $return = FALSE; } @@ -132,29 +126,28 @@ class CI_Trackback { * If the data is valid it is set to the $this->data array * so that it can be inserted into a database. * - * @access public * @return bool */ - function receive() + public function receive() { foreach (array('url', 'title', 'blog_name', 'excerpt') as $val) { - if ( ! isset($_POST[$val]) OR $_POST[$val] == '') + if (empty($_POST[$val])) { $this->set_error('The following required POST variable is missing: '.$val); return FALSE; } - $this->data['charset'] = ( ! isset($_POST['charset'])) ? 'auto' : strtoupper(trim($_POST['charset'])); + $this->data['charset'] = isset($_POST['charset']) ? strtoupper(trim($_POST['charset'])) : 'auto'; - if ($val != 'url' && function_exists('mb_convert_encoding')) + if ($val !== 'url' && MB_ENABLED === TRUE) { $_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']); } - $_POST[$val] = ($val != 'url') ? $this->convert_xml(strip_tags($_POST[$val])) : strip_tags($_POST[$val]); + $_POST[$val] = ($val !== 'url') ? $this->convert_xml(strip_tags($_POST[$val])) : strip_tags($_POST[$val]); - if ($val == 'excerpt') + if ($val === 'excerpt') { $_POST['excerpt'] = $this->limit_characters($_POST['excerpt']); } @@ -170,17 +163,16 @@ class CI_Trackback { /** * Send Trackback Error Message * - * Allows custom errors to be set. By default it + * Allows custom errors to be set. By default it * sends the "incomplete information" error, as that's * the most common one. * - * @access public * @param string * @return void */ - function send_error($message = 'Incomplete Information') + public function send_error($message = 'Incomplete Information') { - echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>1</error>\n<message>".$message."</message>\n</response>"; + echo '<?xml version="1.0" encoding="utf-8"?'.">\n<response>\n<error>1</error>\n<message>".$message."</message>\n</response>"; exit; } @@ -192,12 +184,11 @@ class CI_Trackback { * This should be called when a trackback has been * successfully received and inserted. * - * @access public * @return void */ - function send_success() + public function send_success() { - echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>0</error>\n</response>"; + echo '<?xml version="1.0" encoding="utf-8"?'.">\n<response>\n<error>0</error>\n</response>"; exit; } @@ -206,13 +197,12 @@ class CI_Trackback { /** * Fetch a particular item * - * @access public * @param string * @return string */ - function data($item) + public function data($item) { - return ( ! isset($this->data[$item])) ? '' : $this->data[$item]; + return isset($this->data[$item]) ? $this->data[$item] : ''; } // -------------------------------------------------------------------- @@ -221,14 +211,13 @@ class CI_Trackback { * Process Trackback * * Opens a socket connection and passes the data to - * the server. Returns TRUE on success, FALSE on failure + * the server. Returns TRUE on success, FALSE on failure * - * @access public * @param string * @param string * @return bool */ - function process($url, $data) + public function process($url, $data) { $target = parse_url($url); @@ -240,43 +229,36 @@ class CI_Trackback { } // Build the path - $ppath = ( ! isset($target['path'])) ? $url : $target['path']; + $ppath = isset($target['path']) ? $target['path'] : $url; - $path = (isset($target['query']) && $target['query'] != "") ? $ppath.'?'.$target['query'] : $ppath; + $path = empty($target['query']) ? $ppath : $ppath.'?'.$target['query']; // Add the Trackback ID to the data string if ($id = $this->get_id($url)) { - $data = "tb_id=".$id."&".$data; + $data = 'tb_id='.$id.'&'.$data; } // Transfer the data - fputs ($fp, "POST " . $path . " HTTP/1.0\r\n" ); - fputs ($fp, "Host: " . $target['host'] . "\r\n" ); - fputs ($fp, "Content-type: application/x-www-form-urlencoded\r\n" ); - fputs ($fp, "Content-length: " . strlen($data) . "\r\n" ); - fputs ($fp, "Connection: close\r\n\r\n" ); - fputs ($fp, $data); + fputs($fp, 'POST '.$path." HTTP/1.0\r\n"); + fputs($fp, 'Host: '.$target['host']."\r\n"); + fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n"); + fputs($fp, 'Content-length: '.strlen($data)."\r\n"); + fputs($fp, "Connection: close\r\n\r\n"); + fputs($fp, $data); // Was it successful? - $this->response = ""; + $this->response = ''; while ( ! feof($fp)) { $this->response .= fgets($fp, 128); } @fclose($fp); - - if (stristr($this->response, '<error>0</error>') === FALSE) + if (stripos($this->response, '<error>0</error>') === FALSE) { - $message = 'An unknown error was encountered'; - - if (preg_match("/<message>(.*?)<\/message>/is", $this->response, $match)) - { - $message = trim($match['1']); - } - + $message = preg_match('/<message>(.*?)<\/message>/is', $this->response, $match) ? trim($match[1]) : 'An unknown error was encountered'; $this->set_error($message); return FALSE; } @@ -293,29 +275,22 @@ class CI_Trackback { * It takes a string of URLs (separated by comma or * space) and puts each URL into an array * - * @access public * @param string * @return string */ - function extract_urls($urls) + public function extract_urls($urls) { - // Remove the pesky white space and replace with a comma. - $urls = preg_replace("/\s*(\S+)\s*/", "\\1,", $urls); - - // If they use commas get rid of the doubles. - $urls = str_replace(",,", ",", $urls); + // Remove the pesky white space and replace with a comma, then replace doubles. + $urls = str_replace(',,', ',', preg_replace('/\s*(\S+)\s*/', '\\1,', $urls)); // Remove any comma that might be at the end - if (substr($urls, -1) == ",") + if (substr($urls, -1) === ',') { $urls = substr($urls, 0, -1); } - // Break into an array via commas - $urls = preg_split('/[,]/', $urls); - - // Removes duplicates - $urls = array_unique($urls); + // Break into an array via commas and remove duplicates + $urls = array_unique(preg_split('/[,]/', $urls)); array_walk($urls, array($this, 'validate_url')); @@ -329,17 +304,16 @@ class CI_Trackback { * * Simply adds "http://" if missing * - * @access public * @param string - * @return string + * @return void */ - function validate_url($url) + public function validate_url(&$url) { $url = trim($url); - if (substr($url, 0, 4) != "http") + if (strpos($url, 'http') !== 0) { - $url = "http://".$url; + $url = 'http://'.$url; } } @@ -348,13 +322,12 @@ class CI_Trackback { /** * Find the Trackback URL's ID * - * @access public * @param string * @return string */ - function get_id($url) + public function get_id($url) { - $tb_id = ""; + $tb_id = ''; if (strpos($url, '?') !== FALSE) { @@ -378,18 +351,11 @@ class CI_Trackback { if ( ! is_numeric($tb_id)) { - $tb_id = $tb_array[count($tb_array)-2]; + $tb_id = $tb_array[count($tb_array)-2]; } } - if ( ! preg_match ("/^([0-9]+)$/", $tb_id)) - { - return FALSE; - } - else - { - return $tb_id; - } + return preg_match('/^[0-9]+$/', $tb_id) ? $tb_id : FALSE; } // -------------------------------------------------------------------- @@ -397,25 +363,20 @@ class CI_Trackback { /** * Convert Reserved XML characters to Entities * - * @access public * @param string * @return string */ - function convert_xml($str) + public function convert_xml($str) { $temp = '__TEMP_AMPERSANDS__'; - $str = preg_replace("/&#(\d+);/", "$temp\\1;", $str); - $str = preg_replace("/&(\w+);/", "$temp\\1;", $str); + $str = preg_replace(array('/&#(\d+);/', '/&(\w+);/'), $temp.'\\1;', $str); - $str = str_replace(array("&","<",">","\"", "'", "-"), - array("&", "<", ">", """, "'", "-"), - $str); + $str = str_replace(array('&', '<', '>', '"', "'", '-'), + array('&', '<', '>', '"', ''', '-'), + $str); - $str = preg_replace("/$temp(\d+);/","&#\\1;",$str); - $str = preg_replace("/$temp(\w+);/","&\\1;", $str); - - return $str; + return preg_replace(array('/'.$temp.'(\d+);/', '/'.$temp.'(\w+);/'), array('&#\\1;', '&\\1;'), $str); } // -------------------------------------------------------------------- @@ -425,33 +386,32 @@ class CI_Trackback { * * Limits the string based on the character count. Will preserve complete words. * - * @access public * @param string - * @param integer + * @param int * @param string * @return string */ - function limit_characters($str, $n = 500, $end_char = '…') + public function limit_characters($str, $n = 500, $end_char = '…') { if (strlen($str) < $n) { return $str; } - $str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str)); + $str = preg_replace('/\s+/', ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str)); if (strlen($str) <= $n) { return $str; } - $out = ""; + $out = ''; foreach (explode(' ', trim($str)) as $val) { $out .= $val.' '; if (strlen($out) >= $n) { - return trim($out).$end_char; + return rtrim($out).$end_char; } } } @@ -464,11 +424,10 @@ class CI_Trackback { * Converts Hight ascii text and MS Word special chars * to character entities * - * @access public * @param string * @return string */ - function convert_ascii($str) + public function convert_ascii($str) { $count = 1; $out = ''; @@ -484,16 +443,18 @@ class CI_Trackback { } else { - if (count($temp) == 0) + if (count($temp) === 0) { $count = ($ordinal < 224) ? 2 : 3; } $temp[] = $ordinal; - if (count($temp) == $count) + if (count($temp) === $count) { - $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); + $number = ($count === 3) + ? (($temp[0] % 16) * 4096) + (($temp[1] % 64) * 64) + ($temp[2] % 64) + : (($temp[0] % 32) * 64) + ($temp[1] % 64); $out .= '&#'.$number.';'; $count = 1; @@ -510,11 +471,10 @@ class CI_Trackback { /** * Set error message * - * @access public * @param string * @return void */ - function set_error($msg) + public function set_error($msg) { log_message('error', $msg); $this->error_msg[] = $msg; @@ -525,24 +485,16 @@ class CI_Trackback { /** * Show error messages * - * @access public * @param string * @param string * @return string */ - function display_errors($open = '<p>', $close = '</p>') + public function display_errors($open = '<p>', $close = '</p>') { - $str = ''; - foreach ($this->error_msg as $val) - { - $str .= $open.$val.$close; - } - - return $str; + return (count($this->error_msg) > 0) ? $open.implode($close.$open, $this->error_msg).$close : ''; } } -// END Trackback Class /* End of file Trackback.php */ /* Location: ./system/libraries/Trackback.php */
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