-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
-/**\r
- * CodeIgniter\r
- *\r
- * An open source application development framework for PHP 4.3.2 or newer\r
- *\r
- * @package CodeIgniter\r
- * @author ExpressionEngine Dev Team\r
- * @copyright Copyright (c) 2008, EllisLab, Inc.\r
- * @license http://codeigniter.com/user_guide/license.html\r
- * @link http://codeigniter.com\r
- * @since Version 1.0\r
- * @filesource\r
- */\r
-\r
-// ------------------------------------------------------------------------\r
-\r
-/**\r
- * Trackback Class\r
- *\r
- * Trackback Sending/Receiving Class\r
- *\r
- * @package CodeIgniter\r
- * @subpackage Libraries\r
- * @category Trackbacks\r
- * @author ExpressionEngine Dev Team\r
- * @link http://codeigniter.com/user_guide/libraries/trackback.html\r
- */\r
-class CI_Trackback {\r
- \r
- var $time_format = 'local';\r
- var $charset = 'UTF-8';\r
- var $data = array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => '');\r
- var $convert_ascii = TRUE;\r
- var $response = '';\r
- var $error_msg = array();\r
-\r
- /**\r
- * Constructor\r
- *\r
- * @access public\r
- */\r
- function CI_Trackback()\r
- {\r
- log_message('debug', "Trackback Class Initialized");\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Send Trackback\r
- *\r
- * @access public\r
- * @param array\r
- * @return bool\r
- */ \r
- function send($tb_data)\r
- { \r
- if ( ! is_array($tb_data))\r
- {\r
- $this->set_error('The send() method must be passed an array');\r
- return FALSE;\r
- }\r
- \r
- // Pre-process the Trackback Data\r
- foreach (array('url', 'title', 'excerpt', 'blog_name', 'ping_url') as $item)\r
- {\r
- if ( ! isset($tb_data[$item]))\r
- {\r
- $this->set_error('Required item missing: '.$item);\r
- return FALSE;\r
- }\r
- \r
- switch ($item)\r
- {\r
- case 'ping_url' : $$item = $this->extract_urls($tb_data[$item]);\r
- break;\r
- case 'excerpt' : $$item = $this->limit_characters($this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));\r
- break;\r
- case 'url' : $$item = str_replace('-', '-', $this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));\r
- break;\r
- default : $$item = $this->convert_xml(strip_tags(stripslashes($tb_data[$item])));\r
- break;\r
- }\r
-\r
- // Convert High ASCII Characters\r
- if ($this->convert_ascii == TRUE)\r
- {\r
- if ($item == 'excerpt')\r
- {\r
- $$item = $this->convert_ascii($$item);\r
- }\r
- elseif ($item == 'title')\r
- {\r
- $$item = $this->convert_ascii($$item);\r
- }\r
- elseif($item == 'blog_name')\r
- {\r
- $$item = $this->convert_ascii($$item);\r
- }\r
- }\r
- }\r
-\r
- // Build the Trackback data string\r
- $charset = ( ! isset($tb_data['charset'])) ? $this->charset : $tb_data['charset'];\r
- \r
- $data = "url=".rawurlencode($url)."&title=".rawurlencode($title)."&blog_name=".rawurlencode($blog_name)."&excerpt=".rawurlencode($excerpt)."&charset=".rawurlencode($charset);\r
- \r
- // Send Trackback(s)\r
- $return = TRUE;\r
- if (count($ping_url) > 0)\r
- {\r
- foreach ($ping_url as $url)\r
- {\r
- if ($this->process($url, $data) == FALSE)\r
- {\r
- $return = FALSE;\r
- }\r
- } \r
- }\r
-\r
- return $return;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Receive Trackback Data\r
- *\r
- * This function simply validates the incoming TB data.\r
- * It returns false on failure and true on success.\r
- * If the data is valid it is set to the $this->data array\r
- * so that it can be inserted into a database.\r
- *\r
- * @access public\r
- * @return bool\r
- */ \r
- function receive()\r
- { \r
- foreach (array('url', 'title', 'blog_name', 'excerpt') as $val)\r
- {\r
- if ( ! isset($_POST[$val]) OR $_POST[$val] == '')\r
- {\r
- $this->set_error('The following required POST variable is missing: '.$val);\r
- return FALSE;\r
- }\r
- \r
- $this->data['charset'] = ( ! isset($_POST['charset'])) ? 'auto' : strtoupper(trim($_POST['charset']));\r
- \r
- if ($val != 'url' && function_exists('mb_convert_encoding'))\r
- {\r
- $_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']);\r
- }\r
- \r
- $_POST[$val] = ($val != 'url') ? $this->convert_xml(strip_tags($_POST[$val])) : strip_tags($_POST[$val]);\r
- \r
- if ($val == 'excerpt')\r
- {\r
- $_POST['excerpt'] = $this->limit_characters($_POST['excerpt']);\r
- }\r
- \r
- $this->data[$val] = $_POST[$val];\r
- }\r
-\r
- return TRUE;\r
- } \r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Send Trackback Error Message\r
- *\r
- * Allows custom errors to be set. By default it\r
- * sends the "incomplete information" error, as that's\r
- * the most common one.\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function send_error($message = 'Incomplete Information')\r
- {\r
- echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>1</error>\n<message>".$message."</message>\n</response>";\r
- exit;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Send Trackback Success Message\r
- *\r
- * This should be called when a trackback has been\r
- * successfully received and inserted.\r
- *\r
- * @access public\r
- * @return void\r
- */ \r
- function send_success()\r
- {\r
- echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>0</error>\n</response>";\r
- exit;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Fetch a particular item\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */ \r
- function data($item)\r
- {\r
- return ( ! isset($this->data[$item])) ? '' : $this->data[$item];\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Process Trackback\r
- *\r
- * Opens a socket connection and passes the data to\r
- * the server. Returns true on success, false on failure\r
- *\r
- * @access public\r
- * @param string\r
- * @param string\r
- * @return bool\r
- */ \r
- function process($url, $data)\r
- {\r
- $target = parse_url($url);\r
- \r
- // Open the socket\r
- if ( ! $fp = @fsockopen($target['host'], 80))\r
- {\r
- $this->set_error('Invalid Connection: '.$url);\r
- return FALSE;\r
- }\r
-\r
- // Build the path\r
- $ppath = ( ! isset($target['path'])) ? $url : $target['path'];\r
- \r
- $path = (isset($target['query']) && $target['query'] != "") ? $ppath.'?'.$target['query'] : $ppath;\r
-\r
- // Add the Trackback ID to the data string\r
- if ($id = $this->get_id($url))\r
- {\r
- $data = "tb_id=".$id."&".$data;\r
- }\r
-\r
- // Transfer the data\r
- fputs ($fp, "POST " . $path . " HTTP/1.0\r\n" );\r
- fputs ($fp, "Host: " . $target['host'] . "\r\n" );\r
- fputs ($fp, "Content-type: application/x-www-form-urlencoded\r\n" );\r
- fputs ($fp, "Content-length: " . strlen($data) . "\r\n" );\r
- fputs ($fp, "Connection: close\r\n\r\n" );\r
- fputs ($fp, $data);\r
-\r
- // Was it successful?\r
- $this->response = "";\r
- \r
- while( ! feof($fp))\r
- {\r
- $this->response .= fgets($fp, 128);\r
- }\r
- @fclose($fp);\r
- \r
- if ( ! eregi("<error>0</error>", $this->response))\r
- {\r
- $message = 'An unknown error was encountered';\r
- \r
- if (preg_match("/<message>(.*?)<\/message>/is", $this->response, $match))\r
- {\r
- $message = trim($match['1']);\r
- }\r
- \r
- $this->set_error($message);\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Extract Trackback URLs\r
- *\r
- * This function lets multiple trackbacks be sent.\r
- * It takes a string of URLs (separated by comma or\r
- * space) and puts each URL into an array\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */ \r
- function extract_urls($urls)\r
- { \r
- // Remove the pesky white space and replace with a comma.\r
- $urls = preg_replace("/\s*(\S+)\s*/", "\\1,", $urls);\r
- \r
- // If they use commas get rid of the doubles.\r
- $urls = str_replace(",,", ",", $urls);\r
- \r
- // Remove any comma that might be at the end\r
- if (substr($urls, -1) == ",")\r
- {\r
- $urls = substr($urls, 0, -1);\r
- }\r
- \r
- // Break into an array via commas\r
- $urls = preg_split('/[,]/', $urls);\r
- \r
- // Removes duplicates\r
- $urls = array_unique($urls);\r
- \r
- array_walk($urls, array($this, 'validate_url'));\r
- \r
- return $urls;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Validate URL\r
- *\r
- * Simply adds "http://" if missing\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */ \r
- function validate_url($url)\r
- {\r
- $url = trim($url);\r
-\r
- if (substr($url, 0, 4) != "http")\r
- {\r
- $url = "http://".$url;\r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Find the Trackback URL's ID\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */ \r
- function get_id($url)\r
- { \r
- $tb_id = "";\r
- \r
- if (strstr($url, '?'))\r
- {\r
- $tb_array = explode('/', $url);\r
- $tb_end = $tb_array[count($tb_array)-1];\r
- \r
- if ( ! is_numeric($tb_end))\r
- {\r
- $tb_end = $tb_array[count($tb_array)-2];\r
- }\r
- \r
- $tb_array = explode('=', $tb_end);\r
- $tb_id = $tb_array[count($tb_array)-1];\r
- }\r
- else\r
- {\r
- if (ereg("/$", $url))\r
- {\r
- $url = substr($url, 0, -1);\r
- }\r
- \r
- $tb_array = explode('/', $url);\r
- $tb_id = $tb_array[count($tb_array)-1];\r
- \r
- if ( ! is_numeric($tb_id))\r
- {\r
- $tb_id = $tb_array[count($tb_array)-2];\r
- }\r
- } \r
- \r
- if ( ! preg_match ("/^([0-9]+)$/", $tb_id))\r
- {\r
- return false;\r
- }\r
- else\r
- {\r
- return $tb_id;\r
- } \r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Convert Reserved XML characters to Entities\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */\r
- function convert_xml($str)\r
- {\r
- $temp = '__TEMP_AMPERSANDS__';\r
- \r
- $str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);\r
- $str = preg_replace("/&(\w+);/", "$temp\\1;", $str);\r
- \r
- $str = str_replace(array("&","<",">","\"", "'", "-"),\r
- array("&", "<", ">", """, "'", "-"),\r
- $str);\r
- \r
- $str = preg_replace("/$temp(\d+);/","&#\\1;",$str);\r
- $str = preg_replace("/$temp(\w+);/","&\\1;", $str);\r
- \r
- return $str;\r
- } \r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Character limiter\r
- *\r
- * Limits the string based on the character count. Will preserve complete words.\r
- *\r
- * @access public\r
- * @param string\r
- * @param integer\r
- * @param string\r
- * @return string\r
- */\r
- function limit_characters($str, $n = 500, $end_char = '…')\r
- {\r
- if (strlen($str) < $n)\r
- {\r
- return $str;\r
- }\r
-\r
- $str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str));\r
- \r
- if (strlen($str) <= $n)\r
- {\r
- return $str;\r
- }\r
- \r
- $out = "";\r
- foreach (explode(' ', trim($str)) as $val)\r
- {\r
- $out .= $val.' '; \r
- if (strlen($out) >= $n)\r
- {\r
- return trim($out).$end_char;\r
- } \r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * High ASCII to Entities\r
- *\r
- * Converts Hight ascii text and MS Word special chars\r
- * to character entities\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */\r
- function convert_ascii($str)\r
- {\r
- $count = 1;\r
- $out = '';\r
- $temp = array();\r
- \r
- for ($i = 0, $s = strlen($str); $i < $s; $i++)\r
- {\r
- $ordinal = ord($str[$i]);\r
- \r
- if ($ordinal < 128)\r
- {\r
- $out .= $str[$i]; \r
- }\r
- else\r
- {\r
- if (count($temp) == 0)\r
- {\r
- $count = ($ordinal < 224) ? 2 : 3;\r
- }\r
- \r
- $temp[] = $ordinal;\r
- \r
- if (count($temp) == $count)\r
- {\r
- $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);\r
- \r
- $out .= '&#'.$number.';';\r
- $count = 1;\r
- $temp = array();\r
- }\r
- }\r
- }\r
- \r
- return $out;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Set error message\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function set_error($msg)\r
- {\r
- log_message('error', $msg);\r
- $this->error_msg[] = $msg;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Show error messages\r
- *\r
- * @access public\r
- * @param string\r
- * @param string\r
- * @return string\r
- */ \r
- function display_errors($open = '<p>', $close = '</p>')\r
- { \r
- $str = '';\r
- foreach ($this->error_msg as $val)\r
- {\r
- $str .= $open.$val.$close;\r
- }\r
- \r
- return $str;\r
- }\r
-\r
-}\r
-// END Trackback Class\r
-\r
-/* End of file Trackback.php */\r
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Trackback Class
+ *
+ * Trackback Sending/Receiving Class
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @category Trackbacks
+ * @author ExpressionEngine 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 $error_msg = array();
+
+ /**
+ * Constructor
+ *
+ * @access public
+ */
+ function CI_Trackback()
+ {
+ log_message('debug', "Trackback Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Send Trackback
+ *
+ * @access public
+ * @param array
+ * @return bool
+ */
+ function send($tb_data)
+ {
+ if ( ! is_array($tb_data))
+ {
+ $this->set_error('The send() method must be passed an array');
+ return FALSE;
+ }
+
+ // Pre-process the Trackback Data
+ foreach (array('url', 'title', 'excerpt', 'blog_name', 'ping_url') as $item)
+ {
+ if ( ! isset($tb_data[$item]))
+ {
+ $this->set_error('Required item missing: '.$item);
+ return FALSE;
+ }
+
+ switch ($item)
+ {
+ case 'ping_url' : $$item = $this->extract_urls($tb_data[$item]);
+ break;
+ case 'excerpt' : $$item = $this->limit_characters($this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));
+ break;
+ case 'url' : $$item = str_replace('-', '-', $this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));
+ break;
+ default : $$item = $this->convert_xml(strip_tags(stripslashes($tb_data[$item])));
+ break;
+ }
+
+ // Convert High ASCII Characters
+ if ($this->convert_ascii == TRUE)
+ {
+ 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);
+ }
+ }
+ }
+
+ // Build the Trackback data string
+ $charset = ( ! isset($tb_data['charset'])) ? $this->charset : $tb_data['charset'];
+
+ $data = "url=".rawurlencode($url)."&title=".rawurlencode($title)."&blog_name=".rawurlencode($blog_name)."&excerpt=".rawurlencode($excerpt)."&charset=".rawurlencode($charset);
+
+ // Send Trackback(s)
+ $return = TRUE;
+ if (count($ping_url) > 0)
+ {
+ foreach ($ping_url as $url)
+ {
+ if ($this->process($url, $data) == FALSE)
+ {
+ $return = FALSE;
+ }
+ }
+ }
+
+ return $return;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Receive Trackback Data
+ *
+ * This function simply validates the incoming TB data.
+ * It returns false on failure and true on success.
+ * 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()
+ {
+ foreach (array('url', 'title', 'blog_name', 'excerpt') as $val)
+ {
+ if ( ! isset($_POST[$val]) OR $_POST[$val] == '')
+ {
+ $this->set_error('The following required POST variable is missing: '.$val);
+ return FALSE;
+ }
+
+ $this->data['charset'] = ( ! isset($_POST['charset'])) ? 'auto' : strtoupper(trim($_POST['charset']));
+
+ if ($val != 'url' && function_exists('mb_convert_encoding'))
+ {
+ $_POST[$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[$val]);
+
+ if ($val == 'excerpt')
+ {
+ $_POST['excerpt'] = $this->limit_characters($_POST['excerpt']);
+ }
+
+ $this->data[$val] = $_POST[$val];
+ }
+
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Send Trackback Error Message
+ *
+ * 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($message = 'Incomplete Information')
+ {
+ echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>1</error>\n<message>".$message."</message>\n</response>";
+ exit;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Send Trackback Success Message
+ *
+ * This should be called when a trackback has been
+ * successfully received and inserted.
+ *
+ * @access public
+ * @return void
+ */
+ function send_success()
+ {
+ echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>0</error>\n</response>";
+ exit;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Fetch a particular item
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function data($item)
+ {
+ return ( ! isset($this->data[$item])) ? '' : $this->data[$item];
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Process Trackback
+ *
+ * Opens a socket connection and passes the data to
+ * the server. Returns true on success, false on failure
+ *
+ * @access public
+ * @param string
+ * @param string
+ * @return bool
+ */
+ function process($url, $data)
+ {
+ $target = parse_url($url);
+
+ // Open the socket
+ if ( ! $fp = @fsockopen($target['host'], 80))
+ {
+ $this->set_error('Invalid Connection: '.$url);
+ return FALSE;
+ }
+
+ // Build the path
+ $ppath = ( ! isset($target['path'])) ? $url : $target['path'];
+
+ $path = (isset($target['query']) && $target['query'] != "") ? $ppath.'?'.$target['query'] : $ppath;
+
+ // Add the Trackback ID to the data string
+ if ($id = $this->get_id($url))
+ {
+ $data = "tb_id=".$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);
+
+ // Was it successful?
+ $this->response = "";
+
+ while( ! feof($fp))
+ {
+ $this->response .= fgets($fp, 128);
+ }
+ @fclose($fp);
+
+ if ( ! eregi("<error>0</error>", $this->response))
+ {
+ $message = 'An unknown error was encountered';
+
+ if (preg_match("/<message>(.*?)<\/message>/is", $this->response, $match))
+ {
+ $message = trim($match['1']);
+ }
+
+ $this->set_error($message);
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Extract Trackback URLs
+ *
+ * This function lets multiple trackbacks be sent.
+ * 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)
+ {
+ // 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(",,", ",", $urls);
+
+ // Remove any comma that might be at the end
+ if (substr($urls, -1) == ",")
+ {
+ $urls = substr($urls, 0, -1);
+ }
+
+ // Break into an array via commas
+ $urls = preg_split('/[,]/', $urls);
+
+ // Removes duplicates
+ $urls = array_unique($urls);
+
+ array_walk($urls, array($this, 'validate_url'));
+
+ return $urls;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Validate URL
+ *
+ * Simply adds "http://" if missing
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function validate_url($url)
+ {
+ $url = trim($url);
+
+ if (substr($url, 0, 4) != "http")
+ {
+ $url = "http://".$url;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Find the Trackback URL's ID
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function get_id($url)
+ {
+ $tb_id = "";
+
+ if (strstr($url, '?'))
+ {
+ $tb_array = explode('/', $url);
+ $tb_end = $tb_array[count($tb_array)-1];
+
+ if ( ! is_numeric($tb_end))
+ {
+ $tb_end = $tb_array[count($tb_array)-2];
+ }
+
+ $tb_array = explode('=', $tb_end);
+ $tb_id = $tb_array[count($tb_array)-1];
+ }
+ else
+ {
+ if (ereg("/$", $url))
+ {
+ $url = substr($url, 0, -1);
+ }
+
+ $tb_array = explode('/', $url);
+ $tb_id = $tb_array[count($tb_array)-1];
+
+ if ( ! is_numeric($tb_id))
+ {
+ $tb_id = $tb_array[count($tb_array)-2];
+ }
+ }
+
+ if ( ! preg_match ("/^([0-9]+)$/", $tb_id))
+ {
+ return false;
+ }
+ else
+ {
+ return $tb_id;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Convert Reserved XML characters to Entities
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function convert_xml($str)
+ {
+ $temp = '__TEMP_AMPERSANDS__';
+
+ $str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);
+ $str = preg_replace("/&(\w+);/", "$temp\\1;", $str);
+
+ $str = str_replace(array("&","<",">","\"", "'", "-"),
+ array("&", "<", ">", """, "'", "-"),
+ $str);
+
+ $str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
+ $str = preg_replace("/$temp(\w+);/","&\\1;", $str);
+
+ return $str;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Character limiter
+ *
+ * Limits the string based on the character count. Will preserve complete words.
+ *
+ * @access public
+ * @param string
+ * @param integer
+ * @param string
+ * @return string
+ */
+ function limit_characters($str, $n = 500, $end_char = '…')
+ {
+ if (strlen($str) < $n)
+ {
+ return $str;
+ }
+
+ $str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str));
+
+ if (strlen($str) <= $n)
+ {
+ return $str;
+ }
+
+ $out = "";
+ foreach (explode(' ', trim($str)) as $val)
+ {
+ $out .= $val.' ';
+ if (strlen($out) >= $n)
+ {
+ return trim($out).$end_char;
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * High ASCII to Entities
+ *
+ * Converts Hight ascii text and MS Word special chars
+ * to character entities
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+ function convert_ascii($str)
+ {
+ $count = 1;
+ $out = '';
+ $temp = array();
+
+ for ($i = 0, $s = strlen($str); $i < $s; $i++)
+ {
+ $ordinal = ord($str[$i]);
+
+ if ($ordinal < 128)
+ {
+ $out .= $str[$i];
+ }
+ else
+ {
+ if (count($temp) == 0)
+ {
+ $count = ($ordinal < 224) ? 2 : 3;
+ }
+
+ $temp[] = $ordinal;
+
+ if (count($temp) == $count)
+ {
+ $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
+
+ $out .= '&#'.$number.';';
+ $count = 1;
+ $temp = array();
+ }
+ }
+ }
+
+ return $out;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set error message
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_error($msg)
+ {
+ log_message('error', $msg);
+ $this->error_msg[] = $msg;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show error messages
+ *
+ * @access public
+ * @param string
+ * @param string
+ * @return string
+ */
+ function display_errors($open = '<p>', $close = '</p>')
+ {
+ $str = '';
+ foreach ($this->error_msg as $val)
+ {
+ $str .= $open.$val.$close;
+ }
+
+ return $str;
+ }
+
+}
+// END Trackback Class
+
+/* End of file Trackback.php */
/* Location: ./system/libraries/Trackback.php */
\ No newline at end of file
git://git.onelab.eu / www-register-wizard.git / blobdiff