You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
131 lines
4.0 KiB
PHP
131 lines
4.0 KiB
PHP
<?php
|
|
|
|
/*
|
|
+-----------------------------------------------------------------------+
|
|
| program/include/rcube_string_replacer.php |
|
|
| |
|
|
| This file is part of the Roundcube Webmail client |
|
|
| Copyright (C) 2009, Roundcube Dev. - Switzerland |
|
|
| Licensed under the GNU GPL |
|
|
| |
|
|
| PURPOSE: |
|
|
| Handle string replacements based on preg_replace_callback |
|
|
| |
|
|
+-----------------------------------------------------------------------+
|
|
| Author: Thomas Bruederli <roundcube@gmail.com> |
|
|
+-----------------------------------------------------------------------+
|
|
|
|
$Id$
|
|
|
|
*/
|
|
|
|
|
|
/**
|
|
* Helper class for string replacements based on preg_replace_callback
|
|
*
|
|
* @package Core
|
|
*/
|
|
class rcube_string_replacer
|
|
{
|
|
public static $pattern = '/##str_replacement\[([0-9]+)\]##/';
|
|
public $mailto_pattern;
|
|
public $link_pattern;
|
|
private $values = array();
|
|
|
|
|
|
function __construct()
|
|
{
|
|
// Simplified domain expression for UTF8 characters handling
|
|
$utf_domain = '[^&@"\'\\/\s\r\t\n]+\\.[a-z]{2,5}';
|
|
|
|
$this->link_pattern = "/([\w]+:\/\/|\Wwww\.)($utf_domain(\S+)?)/i";
|
|
$this->mailto_pattern = "/("
|
|
."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*" // local-part
|
|
."@$utf_domain" // domain-part
|
|
."(\?\S+)?" // e.g. ?subject=test...
|
|
.")/i";
|
|
}
|
|
|
|
/**
|
|
* Add a string to the internal list
|
|
*
|
|
* @param string String value
|
|
* @return int Index of value for retrieval
|
|
*/
|
|
public function add($str)
|
|
{
|
|
$i = count($this->values);
|
|
$this->values[$i] = $str;
|
|
return $i;
|
|
}
|
|
|
|
/**
|
|
* Build replacement string
|
|
*/
|
|
public function get_replacement($i)
|
|
{
|
|
return '##str_replacement['.$i.']##';
|
|
}
|
|
|
|
/**
|
|
* Callback function used to build HTML links around URL strings
|
|
*
|
|
* @param array Matches result from preg_replace_callback
|
|
* @return int Index of saved string value
|
|
*/
|
|
public function link_callback($matches)
|
|
{
|
|
$i = -1;
|
|
$scheme = strtolower($matches[1]);
|
|
|
|
if (preg_match('!^(http|ftp|file)s?://!', $scheme)) {
|
|
$url = $matches[1] . $matches[2];
|
|
$i = $this->add(html::a(array('href' => $url, 'target' => '_blank'), Q($url)));
|
|
}
|
|
else if (preg_match('/^(\W)www\.$/', $matches[1], $m)) {
|
|
$url = 'www.' . $matches[2];
|
|
$i = $this->add($m[1] . html::a(array('href' => 'http://' . $url, 'target' => '_blank'), Q($url)));
|
|
}
|
|
|
|
// Return valid link for recognized schemes, otherwise, return the unmodified string for unrecognized schemes.
|
|
return $i >= 0 ? $this->get_replacement($i) : $matches[0];
|
|
}
|
|
|
|
/**
|
|
* Callback function used to build mailto: links around e-mail strings
|
|
*
|
|
* @param array Matches result from preg_replace_callback
|
|
* @return int Index of saved string value
|
|
*/
|
|
public function mailto_callback($matches)
|
|
{
|
|
$i = $this->add(html::a(array(
|
|
'href' => 'mailto:' . $matches[1],
|
|
'onclick' => "return ".JS_OBJECT_NAME.".command('compose','".JQ($matches[1])."',this)",
|
|
),
|
|
Q($matches[1])));
|
|
|
|
return $i >= 0 ? $this->get_replacement($i) : '';
|
|
}
|
|
|
|
/**
|
|
* Look up the index from the preg_replace matches array
|
|
* and return the substitution value.
|
|
*
|
|
* @param array Matches result from preg_replace_callback
|
|
* @return string Value at index $matches[1]
|
|
*/
|
|
public function replace_callback($matches)
|
|
{
|
|
return $this->values[$matches[1]];
|
|
}
|
|
|
|
/**
|
|
* Replace substituted strings with original values
|
|
*/
|
|
public function resolve($str)
|
|
{
|
|
return preg_replace_callback(self::$pattern, array($this, 'replace_callback'), $str);
|
|
}
|
|
|
|
} |