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diff --git a/program/lib/Roundcube/rcube_base_replacer.php b/program/lib/Roundcube/rcube_base_replacer.php
index a59bba926..fa6764753 100644
--- a/program/lib/Roundcube/rcube_base_replacer.php
+++ b/program/lib/Roundcube/rcube_base_replacer.php
@@ -1,105 +1,105 @@
<?php
/*
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2005-2012, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Provide basic functions for base URL replacement |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
*/
/**
* Helper class to turn relative urls into absolute ones
* using a predefined base
*
* @package Framework
* @subpackage Utils
* @author Thomas Bruederli <roundcube@gmail.com>
*/
class rcube_base_replacer
{
private $base_url;
public function __construct($base)
{
$this->base_url = $base;
}
public function callback($matches)
{
return $matches[1] . '="' . self::absolute_url($matches[3], $this->base_url) . '"';
}
public function replace($body)
{
return preg_replace_callback(array(
'/(src|background|href)=(["\']?)([^"\'\s>]+)(\2|\s|>)/i',
'/(url\s*\()(["\']?)([^"\'\)\s]+)(\2)\)/i',
),
array($this, 'callback'), $body);
}
/**
* Convert paths like ../xxx to an absolute path using a base url
*
* @param string $path Relative path
* @param string $base_url Base URL
*
* @return string Absolute URL
*/
public static function absolute_url($path, $base_url)
{
$host_url = $base_url;
$abs_path = $path;
// check if path is an absolute URL
if (preg_match('/^[fhtps]+:\/\//', $path)) {
return $path;
}
// check if path is a content-id scheme
if (strpos($path, 'cid:') === 0) {
return $path;
}
// cut base_url to the last directory
if (strrpos($base_url, '/') > 7) {
$host_url = substr($base_url, 0, strpos($base_url, '/', 7));
$base_url = substr($base_url, 0, strrpos($base_url, '/'));
}
// $path is absolute
if ($path[0] == '/') {
$abs_path = $host_url.$path;
}
else {
// strip './' because its the same as ''
$path = preg_replace('/^\.\//', '', $path);
if (preg_match_all('/\.\.\//', $path, $matches, PREG_SET_ORDER)) {
foreach ($matches as $a_match) {
- if (strrpos($base_url, '/')) {
- $base_url = substr($base_url, 0, strrpos($base_url, '/'));
+ if ($pos = strrpos($base_url, '/')) {
+ $base_url = substr($base_url, 0, $pos);
}
$path = substr($path, 3);
}
}
$abs_path = $base_url.'/'.$path;
}
return $abs_path;
}
}
diff --git a/program/lib/Roundcube/rcube_html2text.php b/program/lib/Roundcube/rcube_html2text.php
index 9b248a3a8..6f79e2f8e 100644
--- a/program/lib/Roundcube/rcube_html2text.php
+++ b/program/lib/Roundcube/rcube_html2text.php
@@ -1,701 +1,704 @@
<?php
/**
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2008-2012, The Roundcube Dev Team |
| Copyright (c) 2005-2007, Jon Abernathy <jon@chuggnutt.com> |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Converts HTML to formatted plain text (based on html2text class) |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
| Author: Aleksander Machniak <alec@alec.pl> |
| Author: Jon Abernathy <jon@chuggnutt.com> |
+-----------------------------------------------------------------------+
*/
/**
* Takes HTML and converts it to formatted, plain text.
*
* Thanks to Alexander Krug (http://www.krugar.de/) to pointing out and
* correcting an error in the regexp search array. Fixed 7/30/03.
*
* Updated set_html() function's file reading mechanism, 9/25/03.
*
* Thanks to Joss Sanglier (http://www.dancingbear.co.uk/) for adding
* several more HTML entity codes to the $search and $replace arrays.
* Updated 11/7/03.
*
* Thanks to Darius Kasperavicius (http://www.dar.dar.lt/) for
* suggesting the addition of $allowed_tags and its supporting function
* (which I slightly modified). Updated 3/12/04.
*
* Thanks to Justin Dearing for pointing out that a replacement for the
* <TH> tag was missing, and suggesting an appropriate fix.
* Updated 8/25/04.
*
* Thanks to Mathieu Collas (http://www.myefarm.com/) for finding a
* display/formatting bug in the _build_link_list() function: email
* readers would show the left bracket and number ("[1") as part of the
* rendered email address.
* Updated 12/16/04.
*
* Thanks to Wojciech Bajon (http://histeria.pl/) for submitting code
* to handle relative links, which I hadn't considered. I modified his
* code a bit to handle normal HTTP links and MAILTO links. Also for
* suggesting three additional HTML entity codes to search for.
* Updated 03/02/05.
*
* Thanks to Jacob Chandler for pointing out another link condition
* for the _build_link_list() function: "https".
* Updated 04/06/05.
*
* Thanks to Marc Bertrand (http://www.dresdensky.com/) for
* suggesting a revision to the word wrapping functionality; if you
* specify a $width of 0 or less, word wrapping will be ignored.
* Updated 11/02/06.
*
* *** Big housecleaning updates below:
*
* Thanks to Colin Brown (http://www.sparkdriver.co.uk/) for
* suggesting the fix to handle </li> and blank lines (whitespace).
* Christian Basedau (http://www.movetheweb.de/) also suggested the
* blank lines fix.
*
* Special thanks to Marcus Bointon (http://www.synchromedia.co.uk/),
* Christian Basedau, Norbert Laposa (http://ln5.co.uk/),
* Bas van de Weijer, and Marijn van Butselaar
* for pointing out my glaring error in the <th> handling. Marcus also
* supplied a host of fixes.
*
* Thanks to Jeffrey Silverman (http://www.newtnotes.com/) for pointing
* out that extra spaces should be compressed--a problem addressed with
* Marcus Bointon's fixes but that I had not yet incorporated.
*
* Thanks to Daniel Schledermann (http://www.typoconsult.dk/) for
* suggesting a valuable fix with <a> tag handling.
*
* Thanks to Wojciech Bajon (again!) for suggesting fixes and additions,
* including the <a> tag handling that Daniel Schledermann pointed
* out but that I had not yet incorporated. I haven't (yet)
* incorporated all of Wojciech's changes, though I may at some
* future time.
*
* *** End of the housecleaning updates. Updated 08/08/07.
*/
/**
* Converts HTML to formatted plain text
*
* @package Framework
* @subpackage Utils
*/
class rcube_html2text
{
/**
* Contains the HTML content to convert.
*
* @var string $html
*/
protected $html;
/**
* Contains the converted, formatted text.
*
* @var string $text
*/
protected $text;
/**
* Maximum width of the formatted text, in columns.
*
* Set this value to 0 (or less) to ignore word wrapping
* and not constrain text to a fixed-width column.
*
* @var integer $width
*/
protected $width = 70;
/**
* Target character encoding for output text
*
* @var string $charset
*/
protected $charset = 'UTF-8';
/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $replace.
*
* @var array $search
* @see $replace
*/
protected $search = array(
"/\r/", // Non-legal carriage return
"/[\n\t]+/", // Newlines and tabs
'/<head[^>]*>.*?<\/head>/i', // <head>
'/<script[^>]*>.*?<\/script>/i', // <script>s -- which strip_tags supposedly has problems with
'/<style[^>]*>.*?<\/style>/i', // <style>s -- which strip_tags supposedly has problems with
'/<p[^>]*>/i', // <P>
'/<br[^>]*>/i', // <br>
'/<i[^>]*>(.*?)<\/i>/i', // <i>
'/<em[^>]*>(.*?)<\/em>/i', // <em>
'/(<ul[^>]*>|<\/ul>)/i', // <ul> and </ul>
'/(<ol[^>]*>|<\/ol>)/i', // <ol> and </ol>
'/<li[^>]*>(.*?)<\/li>/i', // <li> and </li>
'/<li[^>]*>/i', // <li>
'/<hr[^>]*>/i', // <hr>
'/<div[^>]*>/i', // <div>
'/(<table[^>]*>|<\/table>)/i', // <table> and </table>
'/(<tr[^>]*>|<\/tr>)/i', // <tr> and </tr>
'/<td[^>]*>(.*?)<\/td>/i', // <td> and </td>
);
/**
* List of pattern replacements corresponding to patterns searched.
*
* @var array $replace
* @see $search
*/
protected $replace = array(
'', // Non-legal carriage return
' ', // Newlines and tabs
'', // <head>
'', // <script>s -- which strip_tags supposedly has problems with
'', // <style>s -- which strip_tags supposedly has problems with
"\n\n", // <P>
"\n", // <br>
'_\\1_', // <i>
'_\\1_', // <em>
"\n\n", // <ul> and </ul>
"\n\n", // <ol> and </ol>
"\t* \\1\n", // <li> and </li>
"\n\t* ", // <li>
"\n-------------------------\n", // <hr>
"<div>\n", // <div>
"\n\n", // <table> and </table>
"\n", // <tr> and </tr>
"\t\t\\1\n", // <td> and </td>
);
/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $ent_replace.
*
* @var array $ent_search
* @see $ent_replace
*/
protected $ent_search = array(
'/&(nbsp|#160);/i', // Non-breaking space
'/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i',
// Double quotes
'/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes
'/&gt;/i', // Greater-than
'/&lt;/i', // Less-than
'/&(copy|#169);/i', // Copyright
'/&(trade|#8482|#153);/i', // Trademark
'/&(reg|#174);/i', // Registered
'/&(mdash|#151|#8212);/i', // mdash
'/&(ndash|minus|#8211|#8722);/i', // ndash
'/&(bull|#149|#8226);/i', // Bullet
'/&(pound|#163);/i', // Pound sign
'/&(euro|#8364);/i', // Euro sign
'/&(amp|#38);/i', // Ampersand: see _converter()
'/[ ]{2,}/', // Runs of spaces, post-handling
);
/**
* List of pattern replacements corresponding to patterns searched.
*
* @var array $ent_replace
* @see $ent_search
*/
protected $ent_replace = array(
' ', // Non-breaking space
'"', // Double quotes
"'", // Single quotes
'>',
'<',
'(c)',
'(tm)',
'(R)',
'--',
'-',
'*',
'£',
'EUR', // Euro sign. € ?
'|+|amp|+|', // Ampersand: see _converter()
' ', // Runs of spaces, post-handling
);
/**
* List of preg* regular expression patterns to search for
* and replace using callback function.
*
* @var array $callback_search
*/
protected $callback_search = array(
'/<(a) [^>]*href=("|\')([^"\']+)\2[^>]*>(.*?)<\/a>/i', // <a href="">
'/<(h)[123456]( [^>]*)?>(.*?)<\/h[123456]>/i', // h1 - h6
'/<(b)( [^>]*)?>(.*?)<\/b>/i', // <b>
'/<(strong)( [^>]*)?>(.*?)<\/strong>/i', // <strong>
'/<(th)( [^>]*)?>(.*?)<\/th>/i', // <th> and </th>
);
/**
* List of preg* regular expression patterns to search for in PRE body,
* used in conjunction with $pre_replace.
*
* @var array $pre_search
* @see $pre_replace
*/
protected $pre_search = array(
"/\n/",
"/\t/",
'/ /',
'/<pre[^>]*>/',
'/<\/pre>/'
);
/**
* List of pattern replacements corresponding to patterns searched for PRE body.
*
* @var array $pre_replace
* @see $pre_search
*/
protected $pre_replace = array(
'<br>',
'&nbsp;&nbsp;&nbsp;&nbsp;',
'&nbsp;',
'',
''
);
/**
* Contains a list of HTML tags to allow in the resulting text.
*
* @var string $allowed_tags
* @see set_allowed_tags()
*/
protected $allowed_tags = '';
/**
* Contains the base URL that relative links should resolve to.
*
* @var string $url
*/
protected $url;
/**
* Indicates whether content in the $html variable has been converted yet.
*
* @var boolean $_converted
* @see $html, $text
*/
protected $_converted = false;
/**
* Contains URL addresses from links to be rendered in plain text.
*
* @var array $_link_list
* @see _build_link_list()
*/
protected $_link_list = array();
/**
* Boolean flag, true if a table of link URLs should be listed after the text.
*
* @var boolean $_do_links
* @see __construct()
*/
protected $_do_links = true;
/**
* Constructor.
*
* If the HTML source string (or file) is supplied, the class
* will instantiate with that source propagated, all that has
* to be done it to call get_text().
*
* @param string $source HTML content
* @param boolean $from_file Indicates $source is a file to pull content from
* @param boolean $do_links Indicate whether a table of link URLs is desired
* @param integer $width Maximum width of the formatted text, 0 for no limit
*/
function __construct($source = '', $from_file = false, $do_links = true, $width = 75, $charset = 'UTF-8')
{
if (!empty($source)) {
$this->set_html($source, $from_file);
}
$this->set_base_url();
$this->_do_links = $do_links;
$this->width = $width;
$this->charset = $charset;
}
/**
* Loads source HTML into memory, either from $source string or a file.
*
* @param string $source HTML content
* @param boolean $from_file Indicates $source is a file to pull content from
*/
function set_html($source, $from_file = false)
{
if ($from_file && file_exists($source)) {
$this->html = file_get_contents($source);
}
else {
$this->html = $source;
}
$this->_converted = false;
}
/**
* Returns the text, converted from HTML.
*
* @return string Plain text
*/
function get_text()
{
if (!$this->_converted) {
$this->_convert();
}
return $this->text;
}
/**
* Prints the text, converted from HTML.
*/
function print_text()
{
print $this->get_text();
}
/**
* Sets the allowed HTML tags to pass through to the resulting text.
*
* Tags should be in the form "<p>", with no corresponding closing tag.
*/
function set_allowed_tags($allowed_tags = '')
{
if (!empty($allowed_tags)) {
$this->allowed_tags = $allowed_tags;
}
}
/**
* Sets a base URL to handle relative links.
*/
function set_base_url($url = '')
{
if (empty($url)) {
if (!empty($_SERVER['HTTP_HOST'])) {
$this->url = 'http://' . $_SERVER['HTTP_HOST'];
}
else {
$this->url = '';
}
}
else {
// Strip any trailing slashes for consistency (relative
// URLs may already start with a slash like "/file.html")
if (substr($url, -1) == '/') {
$url = substr($url, 0, -1);
}
$this->url = $url;
}
}
/**
* Workhorse function that does actual conversion (calls _converter() method).
*/
protected function _convert()
{
// Variables used for building the link list
$this->_link_list = array();
$text = trim(stripslashes($this->html));
// Convert HTML to TXT
$this->_converter($text);
// Add link list
if (!empty($this->_link_list)) {
$text .= "\n\nLinks:\n------\n";
foreach ($this->_link_list as $idx => $url) {
$text .= '[' . ($idx+1) . '] ' . $url . "\n";
}
}
$this->text = $text;
$this->_converted = true;
}
/**
* Workhorse function that does actual conversion.
*
* First performs custom tag replacement specified by $search and
* $replace arrays. Then strips any remaining HTML tags, reduces whitespace
* and newlines to a readable format, and word wraps the text to
* $width characters.
*
* @param string Reference to HTML content string
*/
protected function _converter(&$text)
{
// Convert <BLOCKQUOTE> (before PRE!)
$this->_convert_blockquotes($text);
// Convert <PRE>
$this->_convert_pre($text);
// Run our defined tags search-and-replace
$text = preg_replace($this->search, $this->replace, $text);
// Run our defined tags search-and-replace with callback
$text = preg_replace_callback($this->callback_search, array($this, 'tags_preg_callback'), $text);
// Strip any other HTML tags
$text = strip_tags($text, $this->allowed_tags);
// Run our defined entities/characters search-and-replace
$text = preg_replace($this->ent_search, $this->ent_replace, $text);
// Replace known html entities
$text = html_entity_decode($text, ENT_QUOTES, $this->charset);
// Remove unknown/unhandled entities (this cannot be done in search-and-replace block)
$text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);
// Convert "|+|amp|+|" into "&", need to be done after handling of unknown entities
// This properly handles situation of "&amp;quot;" in input string
$text = str_replace('|+|amp|+|', '&', $text);
// Bring down number of empty lines to 2 max
$text = preg_replace("/\n\s+\n/", "\n\n", $text);
$text = preg_replace("/[\n]{3,}/", "\n\n", $text);
// remove leading empty lines (can be produced by eg. P tag on the beginning)
$text = ltrim($text, "\n");
// Wrap the text to a readable format
// for PHP versions >= 4.0.2. Default width is 75
// If width is 0 or less, don't wrap the text.
if ( $this->width > 0 ) {
$text = wordwrap($text, $this->width);
}
}
/**
* Helper function called by preg_replace() on link replacement.
*
* Maintains an internal list of links to be displayed at the end of the
* text, with numeric indices to the original point in the text they
* appeared. Also makes an effort at identifying and handling absolute
* and relative links.
*
* @param string $link URL of the link
* @param string $display Part of the text to associate number with
*/
protected function _build_link_list( $link, $display )
{
if (!$this->_do_links || empty($link)) {
return $display;
}
// Ignored link types
if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
return $display;
}
if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
$url = $link;
}
else {
$url = $this->url;
if (substr($link, 0, 1) != '/') {
$url .= '/';
}
$url .= "$link";
}
if (($index = array_search($url, $this->_link_list)) === false) {
$index = count($this->_link_list);
$this->_link_list[] = $url;
}
return $display . ' [' . ($index+1) . ']';
}
/**
* Helper function for PRE body conversion.
*
* @param string HTML content
*/
protected function _convert_pre(&$text)
{
// get the content of PRE element
while (preg_match('/<pre[^>]*>(.*)<\/pre>/ismU', $text, $matches)) {
$this->pre_content = $matches[1];
// Run our defined tags search-and-replace with callback
$this->pre_content = preg_replace_callback($this->callback_search,
array($this, 'tags_preg_callback'), $this->pre_content);
// convert the content
$this->pre_content = sprintf('<div><br>%s<br></div>',
preg_replace($this->pre_search, $this->pre_replace, $this->pre_content));
// replace the content (use callback because content can contain $0 variable)
$text = preg_replace_callback('/<pre[^>]*>.*<\/pre>/ismU',
array($this, 'pre_preg_callback'), $text, 1);
// free memory
$this->pre_content = '';
}
}
/**
* Helper function for BLOCKQUOTE body conversion.
*
* @param string HTML content
*/
protected function _convert_blockquotes(&$text)
{
$level = 0;
$offset = 0;
while (($start = strpos($text, '<blockquote', $offset)) !== false) {
$offset = $start + 12;
do {
$end = strpos($text, '</blockquote>', $offset);
$next = strpos($text, '<blockquote', $offset);
// nested <blockquote>, skip
if ($next !== false && $next < $end) {
$offset = $next + 12;
$level++;
}
// nested </blockquote> tag
if ($end !== false && $level > 0) {
$offset = $end + 12;
$level--;
}
// found matching end tag
else if ($end !== false && $level == 0) {
$taglen = strpos($text, '>', $start) - $start;
$startpos = $start + $taglen + 1;
// get blockquote content
$body = trim(substr($text, $startpos, $end - $startpos));
// adjust text wrapping width
$p_width = $this->width;
if ($this->width > 0) $this->width -= 2;
// replace content with inner blockquotes
$this->_converter($body);
// resore text width
$this->width = $p_width;
// Add citation markers and create <pre> block
$body = preg_replace_callback('/((?:^|\n)>*)([^\n]*)/', array($this, 'blockquote_citation_ballback'), trim($body));
$body = '<pre>' . htmlspecialchars($body) . '</pre>';
- $text = substr($text, 0, $start) . $body . "\n" . substr($text, $end + 13);
+ $text = substr_replace($text, $body . "\n", $start, $end + 13 - $start);
$offset = 0;
+
break;
}
- } while ($end || $next);
+ }
+ while ($end || $next);
}
}
/**
* Callback function to correctly add citation markers for blockquote contents
*/
public function blockquote_citation_ballback($m)
{
- $line = ltrim($m[2]);
+ $line = ltrim($m[2]);
$space = $line[0] == '>' ? '' : ' ';
+
return $m[1] . '>' . $space . $line;
}
/**
* Callback function for preg_replace_callback use.
*
* @param array PREG matches
* @return string
*/
public function tags_preg_callback($matches)
{
switch (strtolower($matches[1])) {
case 'b':
case 'strong':
return $this->_toupper($matches[3]);
case 'th':
return $this->_toupper("\t\t". $matches[3] ."\n");
case 'h':
return $this->_toupper("\n\n". $matches[3] ."\n\n");
case 'a':
// Remove spaces in URL (#1487805)
$url = str_replace(' ', '', $matches[3]);
return $this->_build_link_list($url, $matches[4]);
}
}
/**
* Callback function for preg_replace_callback use in PRE content handler.
*
* @param array PREG matches
* @return string
*/
public function pre_preg_callback($matches)
{
return $this->pre_content;
}
/**
* Strtoupper function with HTML tags and entities handling.
*
* @param string $str Text to convert
* @return string Converted text
*/
private function _toupper($str)
{
// string can containg HTML tags
$chunks = preg_split('/(<[^>]*>)/', $str, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
// convert toupper only the text between HTML tags
foreach ($chunks as $idx => $chunk) {
if ($chunk[0] != '<') {
$chunks[$idx] = $this->_strtoupper($chunk);
}
}
return implode($chunks);
}
/**
* Strtoupper multibyte wrapper function with HTML entities handling.
*
* @param string $str Text to convert
* @return string Converted text
*/
private function _strtoupper($str)
{
$str = html_entity_decode($str, ENT_COMPAT, $this->charset);
$str = mb_strtoupper($str);
$str = htmlspecialchars($str, ENT_COMPAT, $this->charset);
return $str;
}
}
diff --git a/program/lib/Roundcube/rcube_utils.php b/program/lib/Roundcube/rcube_utils.php
index 771602fa7..b73bc0812 100644
--- a/program/lib/Roundcube/rcube_utils.php
+++ b/program/lib/Roundcube/rcube_utils.php
@@ -1,1005 +1,1005 @@
<?php
/*
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2008-2012, The Roundcube Dev Team |
| Copyright (C) 2011-2012, Kolab Systems AG |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Utility class providing common functions |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
| Author: Aleksander Machniak <alec@alec.pl> |
+-----------------------------------------------------------------------+
*/
/**
* Utility class providing common functions
*
* @package Framework
* @subpackage Utils
*/
class rcube_utils
{
// define constants for input reading
const INPUT_GET = 0x0101;
const INPUT_POST = 0x0102;
const INPUT_GPC = 0x0103;
/**
* Helper method to set a cookie with the current path and host settings
*
* @param string Cookie name
* @param string Cookie value
* @param string Expiration time
*/
public static function setcookie($name, $value, $exp = 0)
{
if (headers_sent()) {
return;
}
$cookie = session_get_cookie_params();
$secure = $cookie['secure'] || self::https_check();
setcookie($name, $value, $exp, $cookie['path'], $cookie['domain'], $secure, true);
}
/**
* E-mail address validation.
*
* @param string $email Email address
* @param boolean $dns_check True to check dns
*
* @return boolean True on success, False if address is invalid
*/
public static function check_email($email, $dns_check=true)
{
// Check for invalid characters
if (preg_match('/[\x00-\x1F\x7F-\xFF]/', $email)) {
return false;
}
// Check for length limit specified by RFC 5321 (#1486453)
if (strlen($email) > 254) {
return false;
}
$email_array = explode('@', $email);
// Check that there's one @ symbol
if (count($email_array) < 2) {
return false;
}
$domain_part = array_pop($email_array);
$local_part = implode('@', $email_array);
// from PEAR::Validate
$regexp = '&^(?:
("\s*(?:[^"\f\n\r\t\v\b\s]+\s*)+")| #1 quoted name
([-\w!\#\$%\&\'*+~/^`|{}=]+(?:\.[-\w!\#\$%\&\'*+~/^`|{}=]+)*)) #2 OR dot-atom (RFC5322)
$&xi';
if (!preg_match($regexp, $local_part)) {
return false;
}
// Validate domain part
if (preg_match('/^\[((IPv6:[0-9a-f:.]+)|([0-9.]+))\]$/i', $domain_part, $matches)) {
return self::check_ip(preg_replace('/^IPv6:/i', '', $matches[1])); // valid IPv4 or IPv6 address
}
else {
// If not an IP address
$domain_array = explode('.', $domain_part);
// Not enough parts to be a valid domain
if (sizeof($domain_array) < 2) {
return false;
}
foreach ($domain_array as $part) {
if (!preg_match('/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]))$/', $part)) {
return false;
}
}
// last domain part
if (preg_match('/[^a-zA-Z]/', array_pop($domain_array))) {
return false;
}
$rcube = rcube::get_instance();
if (!$dns_check || !$rcube->config->get('email_dns_check')) {
return true;
}
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' && version_compare(PHP_VERSION, '5.3.0', '<')) {
$lookup = array();
@exec("nslookup -type=MX " . escapeshellarg($domain_part) . " 2>&1", $lookup);
foreach ($lookup as $line) {
if (strpos($line, 'MX preference')) {
return true;
}
}
return false;
}
// find MX record(s)
if (!function_exists('getmxrr') || getmxrr($domain_part, $mx_records)) {
return true;
}
// find any DNS record
if (!function_exists('checkdnsrr') || checkdnsrr($domain_part, 'ANY')) {
return true;
}
}
return false;
}
/**
* Validates IPv4 or IPv6 address
*
* @param string $ip IP address in v4 or v6 format
*
* @return bool True if the address is valid
*/
public static function check_ip($ip)
{
// IPv6, but there's no build-in IPv6 support
if (strpos($ip, ':') !== false && !defined('AF_INET6')) {
$parts = explode(':', $ip);
$count = count($parts);
if ($count > 8 || $count < 2) {
return false;
}
foreach ($parts as $idx => $part) {
$length = strlen($part);
if (!$length) {
// there can be only one ::
if ($found_empty) {
return false;
}
$found_empty = true;
}
// last part can be an IPv4 address
else if ($idx == $count - 1) {
if (!preg_match('/^[0-9a-f]{1,4}$/i', $part)) {
return @inet_pton($part) !== false;
}
}
else if (!preg_match('/^[0-9a-f]{1,4}$/i', $part)) {
return false;
}
}
return true;
}
return @inet_pton($ip) !== false;
}
/**
* Check whether the HTTP referer matches the current request
*
* @return boolean True if referer is the same host+path, false if not
*/
public static function check_referer()
{
$uri = parse_url($_SERVER['REQUEST_URI']);
$referer = parse_url(self::request_header('Referer'));
return $referer['host'] == self::request_header('Host') && $referer['path'] == $uri['path'];
}
/**
* Replacing specials characters to a specific encoding type
*
* @param string Input string
* @param string Encoding type: text|html|xml|js|url
* @param string Replace mode for tags: show|replace|remove
* @param boolean Convert newlines
*
* @return string The quoted string
*/
public static function rep_specialchars_output($str, $enctype = '', $mode = '', $newlines = true)
{
static $html_encode_arr = false;
static $js_rep_table = false;
static $xml_rep_table = false;
if (!is_string($str)) {
$str = strval($str);
}
// encode for HTML output
if ($enctype == 'html') {
if (!$html_encode_arr) {
$html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS);
unset($html_encode_arr['?']);
}
$encode_arr = $html_encode_arr;
// don't replace quotes and html tags
if ($mode == 'show' || $mode == '') {
$ltpos = strpos($str, '<');
if ($ltpos !== false && strpos($str, '>', $ltpos) !== false) {
unset($encode_arr['"']);
unset($encode_arr['<']);
unset($encode_arr['>']);
unset($encode_arr['&']);
}
}
else if ($mode == 'remove') {
$str = strip_tags($str);
}
$out = strtr($str, $encode_arr);
return $newlines ? nl2br($out) : $out;
}
// if the replace tables for XML and JS are not yet defined
if ($js_rep_table === false) {
$js_rep_table = $xml_rep_table = array();
$xml_rep_table['&'] = '&amp;';
// can be increased to support more charsets
for ($c=160; $c<256; $c++) {
$xml_rep_table[chr($c)] = "&#$c;";
}
$xml_rep_table['"'] = '&quot;';
$js_rep_table['"'] = '\\"';
$js_rep_table["'"] = "\\'";
$js_rep_table["\\"] = "\\\\";
// Unicode line and paragraph separators (#1486310)
$js_rep_table[chr(hexdec(E2)).chr(hexdec(80)).chr(hexdec(A8))] = '&#8232;';
$js_rep_table[chr(hexdec(E2)).chr(hexdec(80)).chr(hexdec(A9))] = '&#8233;';
}
// encode for javascript use
if ($enctype == 'js') {
return preg_replace(array("/\r?\n/", "/\r/", '/<\\//'), array('\n', '\n', '<\\/'), strtr($str, $js_rep_table));
}
// encode for plaintext
if ($enctype == 'text') {
return str_replace("\r\n", "\n", $mode=='remove' ? strip_tags($str) : $str);
}
if ($enctype == 'url') {
return rawurlencode($str);
}
// encode for XML
if ($enctype == 'xml') {
return strtr($str, $xml_rep_table);
}
// no encoding given -> return original string
return $str;
}
/**
* Read input value and convert it for internal use
* Performs stripslashes() and charset conversion if necessary
*
* @param string Field name to read
* @param int Source to get value from (GPC)
* @param boolean Allow HTML tags in field value
* @param string Charset to convert into
*
* @return string Field value or NULL if not available
*/
public static function get_input_value($fname, $source, $allow_html=FALSE, $charset=NULL)
{
$value = NULL;
if ($source == self::INPUT_GET) {
if (isset($_GET[$fname])) {
$value = $_GET[$fname];
}
}
else if ($source == self::INPUT_POST) {
if (isset($_POST[$fname])) {
$value = $_POST[$fname];
}
}
else if ($source == self::INPUT_GPC) {
if (isset($_POST[$fname])) {
$value = $_POST[$fname];
}
else if (isset($_GET[$fname])) {
$value = $_GET[$fname];
}
else if (isset($_COOKIE[$fname])) {
$value = $_COOKIE[$fname];
}
}
return self::parse_input_value($value, $allow_html, $charset);
}
/**
* Parse/validate input value. See self::get_input_value()
* Performs stripslashes() and charset conversion if necessary
*
* @param string Input value
* @param boolean Allow HTML tags in field value
* @param string Charset to convert into
*
* @return string Parsed value
*/
public static function parse_input_value($value, $allow_html=FALSE, $charset=NULL)
{
global $OUTPUT;
if (empty($value)) {
return $value;
}
if (is_array($value)) {
foreach ($value as $idx => $val) {
$value[$idx] = self::parse_input_value($val, $allow_html, $charset);
}
return $value;
}
// strip slashes if magic_quotes enabled
if (get_magic_quotes_gpc() || get_magic_quotes_runtime()) {
$value = stripslashes($value);
}
// remove HTML tags if not allowed
if (!$allow_html) {
$value = strip_tags($value);
}
$output_charset = is_object($OUTPUT) ? $OUTPUT->get_charset() : null;
// remove invalid characters (#1488124)
if ($output_charset == 'UTF-8') {
$value = rcube_charset::clean($value);
}
// convert to internal charset
if ($charset && $output_charset) {
$value = rcube_charset::convert($value, $output_charset, $charset);
}
return $value;
}
/**
* Convert array of request parameters (prefixed with _)
* to a regular array with non-prefixed keys.
*
* @param int $mode Source to get value from (GPC)
* @param string $ignore PCRE expression to skip parameters by name
* @param boolean $allow_html Allow HTML tags in field value
*
* @return array Hash array with all request parameters
*/
public static function request2param($mode = null, $ignore = 'task|action', $allow_html = false)
{
$out = array();
$src = $mode == self::INPUT_GET ? $_GET : ($mode == self::INPUT_POST ? $_POST : $_REQUEST);
foreach (array_keys($src) as $key) {
$fname = $key[0] == '_' ? substr($key, 1) : $key;
if ($ignore && !preg_match('/^(' . $ignore . ')$/', $fname)) {
$out[$fname] = self::get_input_value($key, $mode, $allow_html);
}
}
return $out;
}
/**
* Convert the given string into a valid HTML identifier
* Same functionality as done in app.js with rcube_webmail.html_identifier()
*/
public static function html_identifier($str, $encode=false)
{
if ($encode) {
return rtrim(strtr(base64_encode($str), '+/', '-_'), '=');
}
else {
return asciiwords($str, true, '_');
}
}
/**
* Replace all css definitions with #container [def]
* and remove css-inlined scripting
*
* @param string CSS source code
* @param string Container ID to use as prefix
*
* @return string Modified CSS source
*/
public static function mod_css_styles($source, $container_id, $allow_remote=false)
{
$last_pos = 0;
$replacements = new rcube_string_replacer;
// ignore the whole block if evil styles are detected
$source = self::xss_entity_decode($source);
$stripped = preg_replace('/[^a-z\(:;]/i', '', $source);
$evilexpr = 'expression|behavior|javascript:|import[^a]' . (!$allow_remote ? '|url\(' : '');
if (preg_match("/$evilexpr/i", $stripped)) {
return '/* evil! */';
}
$strict_url_regexp = '!url\s*\([ "\'](https?:)//[a-z0-9/._+-]+["\' ]\)!Uims';
// cut out all contents between { and }
while (($pos = strpos($source, '{', $last_pos)) && ($pos2 = strpos($source, '}', $pos))) {
- $styles = substr($source, $pos+1, $pos2-($pos+1));
- $length = strlen($styles);
+ $length = $pos2 - $pos - 1;
+ $styles = substr($source, $pos+1, $length);
// check every line of a style block...
if ($allow_remote) {
$a_styles = preg_split('/;[\r\n]*/', $styles, -1, PREG_SPLIT_NO_EMPTY);
foreach ($a_styles as $line) {
$stripped = preg_replace('/[^a-z\(:;]/i', '', $line);
// ... and only allow strict url() values
if (stripos($stripped, 'url(') && !preg_match($strict_url_regexp, $line)) {
$a_styles = array('/* evil! */');
break;
}
}
$styles = join(";\n", $a_styles);
}
$key = $replacements->add($styles);
$repl = $replacements->get_replacement($key);
$source = substr_replace($source, $repl, $pos+1, $length);
$last_pos = $pos2 - ($length - strlen($repl));
}
// remove html comments and add #container to each tag selector.
// also replace body definition because we also stripped off the <body> tag
$source = preg_replace(
array(
'/(^\s*<\!--)|(-->\s*$)/m',
'/(^\s*|,\s*|\}\s*)([a-z0-9\._#\*][a-z0-9\.\-_]*)/im',
'/'.preg_quote($container_id, '/').'\s+body/i',
),
array(
'',
"\\1#$container_id \\2",
$container_id,
),
$source);
// put block contents back in
$source = $replacements->resolve($source);
return $source;
}
/**
* Generate CSS classes from mimetype and filename extension
*
* @param string $mimetype Mimetype
* @param string $filename Filename
*
* @return string CSS classes separated by space
*/
public static function file2class($mimetype, $filename)
{
$mimetype = strtolower($mimetype);
$filename = strtolower($filename);
list($primary, $secondary) = explode('/', $mimetype);
$classes = array($primary ? $primary : 'unknown');
if ($secondary) {
$classes[] = $secondary;
}
if (preg_match('/\.([a-z0-9]+)$/', $filename, $m)) {
if (!in_array($m[1], $classes)) {
$classes[] = $m[1];
}
}
return join(" ", $classes);
}
/**
* Decode escaped entities used by known XSS exploits.
* See http://downloads.securityfocus.com/vulnerabilities/exploits/26800.eml for examples
*
* @param string CSS content to decode
*
* @return string Decoded string
*/
public static function xss_entity_decode($content)
{
$out = html_entity_decode(html_entity_decode($content));
$out = preg_replace_callback('/\\\([0-9a-f]{4})/i',
array(self, 'xss_entity_decode_callback'), $out);
$out = preg_replace('#/\*.*\*/#Ums', '', $out);
return $out;
}
/**
* preg_replace_callback callback for xss_entity_decode
*
* @param array $matches Result from preg_replace_callback
*
* @return string Decoded entity
*/
public static function xss_entity_decode_callback($matches)
{
return chr(hexdec($matches[1]));
}
/**
* Check if we can process not exceeding memory_limit
*
* @param integer Required amount of memory
*
* @return boolean True if memory won't be exceeded, False otherwise
*/
public static function mem_check($need)
{
$mem_limit = parse_bytes(ini_get('memory_limit'));
$memory = function_exists('memory_get_usage') ? memory_get_usage() : 16*1024*1024; // safe value: 16MB
return $mem_limit > 0 && $memory + $need > $mem_limit ? false : true;
}
/**
* Check if working in SSL mode
*
* @param integer $port HTTPS port number
* @param boolean $use_https Enables 'use_https' option checking
*
* @return boolean
*/
public static function https_check($port=null, $use_https=true)
{
global $RCMAIL;
if (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) != 'off') {
return true;
}
if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https') {
return true;
}
if ($port && $_SERVER['SERVER_PORT'] == $port) {
return true;
}
if ($use_https && isset($RCMAIL) && $RCMAIL->config->get('use_https')) {
return true;
}
return false;
}
/**
* Replaces hostname variables.
*
* @param string $name Hostname
* @param string $host Optional IMAP hostname
*
* @return string Hostname
*/
public static function parse_host($name, $host = '')
{
// %n - host
$n = preg_replace('/:\d+$/', '', $_SERVER['SERVER_NAME']);
// %t - host name without first part, e.g. %n=mail.domain.tld, %t=domain.tld
$t = preg_replace('/^[^\.]+\./', '', $n);
// %d - domain name without first part
$d = preg_replace('/^[^\.]+\./', '', $_SERVER['HTTP_HOST']);
// %h - IMAP host
$h = $_SESSION['storage_host'] ? $_SESSION['storage_host'] : $host;
// %z - IMAP domain without first part, e.g. %h=imap.domain.tld, %z=domain.tld
$z = preg_replace('/^[^\.]+\./', '', $h);
// %s - domain name after the '@' from e-mail address provided at login screen. Returns FALSE if an invalid email is provided
if (strpos($name, '%s') !== false) {
$user_email = self::get_input_value('_user', self::INPUT_POST);
$user_email = self::idn_convert($user_email, true);
$matches = preg_match('/(.*)@([a-z0-9\.\-\[\]\:]+)/i', $user_email, $s);
if ($matches < 1 || filter_var($s[1]."@".$s[2], FILTER_VALIDATE_EMAIL) === false) {
return false;
}
}
$name = str_replace(array('%n', '%t', '%d', '%h', '%z', '%s'), array($n, $t, $d, $h, $z, $s[2]), $name);
return $name;
}
/**
* Returns remote IP address and forwarded addresses if found
*
* @return string Remote IP address(es)
*/
public static function remote_ip()
{
$address = $_SERVER['REMOTE_ADDR'];
// append the NGINX X-Real-IP header, if set
if (!empty($_SERVER['HTTP_X_REAL_IP'])) {
$remote_ip[] = 'X-Real-IP: ' . $_SERVER['HTTP_X_REAL_IP'];
}
// append the X-Forwarded-For header, if set
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$remote_ip[] = 'X-Forwarded-For: ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
}
if (!empty($remote_ip)) {
$address .= '(' . implode(',', $remote_ip) . ')';
}
return $address;
}
/**
* Returns the real remote IP address
*
* @return string Remote IP address
*/
public static function remote_addr()
{
foreach (array('HTTP_X_FORWARDED_FOR','HTTP_X_REAL_IP','REMOTE_ADDR') as $prop) {
if (!empty($_SERVER[$prop]))
return $_SERVER[$prop];
}
return '';
}
/**
* Read a specific HTTP request header.
*
* @param string $name Header name
*
* @return mixed Header value or null if not available
*/
public static function request_header($name)
{
if (function_exists('getallheaders')) {
$hdrs = array_change_key_case(getallheaders(), CASE_UPPER);
$key = strtoupper($name);
}
else {
$key = 'HTTP_' . strtoupper(strtr($name, '-', '_'));
$hdrs = array_change_key_case($_SERVER, CASE_UPPER);
}
return $hdrs[$key];
}
/**
* Explode quoted string
*
* @param string Delimiter expression string for preg_match()
* @param string Input string
*
* @return array String items
*/
public static function explode_quoted_string($delimiter, $string)
{
$result = array();
$strlen = strlen($string);
for ($q=$p=$i=0; $i < $strlen; $i++) {
if ($string[$i] == "\"" && $string[$i-1] != "\\") {
$q = $q ? false : true;
}
else if (!$q && preg_match("/$delimiter/", $string[$i])) {
$result[] = substr($string, $p, $i - $p);
$p = $i + 1;
}
}
$result[] = (string) substr($string, $p);
return $result;
}
/**
* Improved equivalent to strtotime()
*
* @param string $date Date string
*
* @return int Unix timestamp
*/
public static function strtotime($date)
{
$date = trim($date);
// check for MS Outlook vCard date format YYYYMMDD
if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) {
return mktime(0,0,0, intval($m[2]), intval($m[3]), intval($m[1]));
}
// common little-endian formats, e.g. dd/mm/yyyy (not all are supported by strtotime)
if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})$/', $date, $m)
&& $m[1] > 0 && $m[1] <= 31 && $m[2] > 0 && $m[2] <= 12 && $m[3] >= 1970
) {
return mktime(0,0,0, intval($m[2]), intval($m[1]), intval($m[3]));
}
// unix timestamp
if (is_numeric($date)) {
return (int) $date;
}
// Clean malformed data
$date = preg_replace(
array(
'/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal
'/[^a-z0-9\x20\x09:+-]/i', // remove any invalid characters
'/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names
),
array(
'\\1',
'',
'',
), $date);
$date = trim($date);
// if date parsing fails, we have a date in non-rfc format.
// remove token from the end and try again
while ((($ts = @strtotime($date)) === false) || ($ts < 0)) {
$d = explode(' ', $date);
array_pop($d);
if (!$d) {
break;
}
$date = implode(' ', $d);
}
return (int) $ts;
}
/**
* Date parsing function that turns the given value into a DateTime object
*
* @param string $date Date string
*
* @return object DateTime instance or false on failure
*/
public static function anytodatetime($date)
{
if (is_object($date) && is_a($date, 'DateTime')) {
return $date;
}
$dt = false;
$date = trim($date);
// try to parse string with DateTime first
if (!empty($date)) {
try {
$dt = new DateTime($date);
}
catch (Exception $e) {
// ignore
}
}
// try our advanced strtotime() method
if (!$dt && ($timestamp = self::strtotime($date))) {
try {
$dt = new DateTime("@".$timestamp);
}
catch (Exception $e) {
// ignore
}
}
return $dt;
}
/*
* Idn_to_ascii wrapper.
* Intl/Idn modules version of this function doesn't work with e-mail address
*/
public static function idn_to_ascii($str)
{
return self::idn_convert($str, true);
}
/*
* Idn_to_ascii wrapper.
* Intl/Idn modules version of this function doesn't work with e-mail address
*/
public static function idn_to_utf8($str)
{
return self::idn_convert($str, false);
}
public static function idn_convert($input, $is_utf=false)
{
if ($at = strpos($input, '@')) {
$user = substr($input, 0, $at);
$domain = substr($input, $at+1);
}
else {
$domain = $input;
}
$domain = $is_utf ? idn_to_ascii($domain) : idn_to_utf8($domain);
if ($domain === false) {
return '';
}
return $at ? $user . '@' . $domain : $domain;
}
/**
* Split the given string into word tokens
*
* @param string Input to tokenize
* @return array List of tokens
*/
public static function tokenize_string($str)
{
return explode(" ", preg_replace(
array('/[\s;\/+-]+/i', '/(\d)[-.\s]+(\d)/', '/\s\w{1,3}\s/u'),
array(' ', '\\1\\2', ' '),
$str));
}
/**
* Normalize the given string for fulltext search.
* Currently only optimized for Latin-1 characters; to be extended
*
* @param string Input string (UTF-8)
* @param boolean True to return list of words as array
* @return mixed Normalized string or a list of normalized tokens
*/
public static function normalize_string($str, $as_array = false)
{
// split by words
$arr = self::tokenize_string($str);
foreach ($arr as $i => $part) {
if (utf8_encode(utf8_decode($part)) == $part) { // is latin-1 ?
$arr[$i] = utf8_encode(strtr(strtolower(strtr(utf8_decode($part),
'ÇçäâàåéêëèïîìÅÉöôòüûùÿøØáíóúñÑÁÂÀãÃÊËÈÍÎÏÓÔõÕÚÛÙýÝ',
'ccaaaaeeeeiiiaeooouuuyooaiounnaaaaaeeeiiioooouuuyy')),
array('ß' => 'ss', 'ae' => 'a', 'oe' => 'o', 'ue' => 'u')));
}
else
$arr[$i] = mb_strtolower($part);
}
return $as_array ? $arr : join(" ", $arr);
}
/**
* Parse commandline arguments into a hash array
*
* @param array $aliases Argument alias names
*
* @return array Argument values hash
*/
public static function get_opt($aliases = array())
{
$args = array();
for ($i=1; $i < count($_SERVER['argv']); $i++) {
$arg = $_SERVER['argv'][$i];
$value = true;
$key = null;
if ($arg[0] == '-') {
$key = preg_replace('/^-+/', '', $arg);
$sp = strpos($arg, '=');
if ($sp > 0) {
$key = substr($key, 0, $sp - 2);
$value = substr($arg, $sp+1);
}
else if (strlen($_SERVER['argv'][$i+1]) && $_SERVER['argv'][$i+1][0] != '-') {
$value = $_SERVER['argv'][++$i];
}
$args[$key] = is_string($value) ? preg_replace(array('/^["\']/', '/["\']$/'), '', $value) : $value;
}
else {
$args[] = $arg;
}
if ($alias = $aliases[$key]) {
$args[$alias] = $args[$key];
}
}
return $args;
}
/**
* Safe password prompt for command line
* from http://blogs.sitepoint.com/2009/05/01/interactive-cli-password-prompt-in-php/
*
* @return string Password
*/
public static function prompt_silent($prompt = "Password:")
{
if (preg_match('/^win/i', PHP_OS)) {
$vbscript = sys_get_temp_dir() . 'prompt_password.vbs';
$vbcontent = 'wscript.echo(InputBox("' . addslashes($prompt) . '", "", "password here"))';
file_put_contents($vbscript, $vbcontent);
$command = "cscript //nologo " . escapeshellarg($vbscript);
$password = rtrim(shell_exec($command));
unlink($vbscript);
return $password;
}
else {
$command = "/usr/bin/env bash -c 'echo OK'";
if (rtrim(shell_exec($command)) !== 'OK') {
echo $prompt;
$pass = trim(fgets(STDIN));
echo chr(8)."\r" . $prompt . str_repeat("*", strlen($pass))."\n";
return $pass;
}
$command = "/usr/bin/env bash -c 'read -s -p \"" . addslashes($prompt) . "\" mypassword && echo \$mypassword'";
$password = rtrim(shell_exec($command));
echo "\n";
return $password;
}
}
/**
* Find out if the string content means true or false
*
* @param string $str Input value
*
* @return boolean Boolean value
*/
public static function get_boolean($str)
{
$str = strtolower($str);
return !in_array($str, array('false', '0', 'no', 'off', 'nein', ''), true);
}
}

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