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<?php
/*
+-----------------------------------------------------------------------+
| program/include/main.inc |
| |
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2005-2011, The Roundcube Dev Team |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Provide basic functions for the webmail package |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id: main.inc 5943 2012-03-02 11:56:25Z alec $
*/
/**
* Roundcube Webmail common functions
*
* @package Core
* @author Thomas Bruederli <roundcube@gmail.com>
*/
require_once 'utf7.inc';
require_once INSTALL_PATH . 'program/include/rcube_shared.inc';
// define constannts for input reading
define('RCUBE_INPUT_GET', 0x0101);
define('RCUBE_INPUT_POST', 0x0102);
define('RCUBE_INPUT_GPC', 0x0103);
/**
* Return correct name for a specific database table
*
* @param string Table name
* @return string Translated table name
*/
function get_table_name($table)
{
global $CONFIG;
// return table name if configured
$config_key = 'db_table_'.$table;
if (strlen($CONFIG[$config_key]))
return $CONFIG[$config_key];
return $table;
}
/**
* Return correct name for a specific database sequence
* (used for Postgres only)
*
* @param string Secuence name
* @return string Translated sequence name
*/
function get_sequence_name($sequence)
{
// return sequence name if configured
$config_key = 'db_sequence_'.$sequence;
$opt = rcmail::get_instance()->config->get($config_key);
if (!empty($opt))
return $opt;
return $sequence;
}
/**
* Get localized text in the desired language
* It's a global wrapper for rcmail::gettext()
*
* @param mixed Named parameters array or label name
* @param string Domain to search in (e.g. plugin name)
* @return string Localized text
* @see rcmail::gettext()
*/
function rcube_label($p, $domain=null)
{
return rcmail::get_instance()->gettext($p, $domain);
}
/**
* Global wrapper of rcmail::text_exists()
* to check whether a text label is defined
*
* @see rcmail::text_exists()
*/
function rcube_label_exists($name, $domain=null, &$ref_domain = null)
{
return rcmail::get_instance()->text_exists($name, $domain, $ref_domain);
}
/**
* Overwrite action variable
*
* @param string New action value
*/
function rcmail_overwrite_action($action)
{
$app = rcmail::get_instance();
$app->action = $action;
$app->output->set_env('action', $action);
}
/**
* Compose an URL for a specific action
*
* @param string Request action
* @param array More URL parameters
* @param string Request task (omit if the same)
* @return The application URL
*/
function rcmail_url($action, $p=array(), $task=null)
{
$app = rcmail::get_instance();
return $app->url((array)$p + array('_action' => $action, 'task' => $task));
}
/**
* Garbage collector function for temp files.
* Remove temp files older than two days
*/
function rcmail_temp_gc()
{
$rcmail = rcmail::get_instance();
$tmp = unslashify($rcmail->config->get('temp_dir'));
$expire = mktime() - 172800; // expire in 48 hours
if ($dir = opendir($tmp)) {
while (($fname = readdir($dir)) !== false) {
if ($fname{0} == '.')
continue;
if (filemtime($tmp.'/'.$fname) < $expire)
@unlink($tmp.'/'.$fname);
}
closedir($dir);
}
}
/**
* Garbage collector for cache entries.
* Remove all expired message cache records
* @return void
*/
function rcmail_cache_gc()
{
$rcmail = rcmail::get_instance();
$db = $rcmail->get_dbh();
// get target timestamp
$ts = get_offset_time($rcmail->config->get('message_cache_lifetime', '30d'), -1);
if ($rcmail->config->get('messages_cache') || $rcmail->config->get('enable_caching')) {
$db->query("DELETE FROM ".get_table_name('cache_messages')
." WHERE changed < " . $db->fromunixtime($ts));
$db->query("DELETE FROM ".get_table_name('cache_index')
." WHERE changed < " . $db->fromunixtime($ts));
$db->query("DELETE FROM ".get_table_name('cache_thread')
." WHERE changed < " . $db->fromunixtime($ts));
}
$db->query("DELETE FROM ".get_table_name('cache')
." WHERE created < " . $db->fromunixtime($ts));
}
/**
* Catch an error and throw an exception.
*
* @param int Level of the error
* @param string Error message
*/
function rcube_error_handler($errno, $errstr)
{
throw new ErrorException($errstr, 0, $errno);
}
/**
* Convert a string from one charset to another.
* Uses mbstring and iconv functions if possible
*
* @param string Input string
* @param string Suspected charset of the input string
* @param string Target charset to convert to; defaults to RCMAIL_CHARSET
* @return string Converted string
*/
function rcube_charset_convert($str, $from, $to=NULL)
{
static $iconv_options = null;
static $mbstring_loaded = null;
static $mbstring_list = null;
static $conv = null;
$error = false;
$to = empty($to) ? strtoupper(RCMAIL_CHARSET) : rcube_parse_charset($to);
$from = rcube_parse_charset($from);
if ($from == $to || empty($str) || empty($from))
return $str;
// convert charset using iconv module
if (function_exists('iconv') && $from != 'UTF7-IMAP' && $to != 'UTF7-IMAP') {
if ($iconv_options === null) {
// ignore characters not available in output charset
$iconv_options = '//IGNORE';
if (iconv('', $iconv_options, '') === false) {
// iconv implementation does not support options
$iconv_options = '';
}
}
// throw an exception if iconv reports an illegal character in input
// it means that input string has been truncated
set_error_handler('rcube_error_handler', E_NOTICE);
try {
$_iconv = iconv($from, $to . $iconv_options, $str);
} catch (ErrorException $e) {
$_iconv = false;
}
restore_error_handler();
if ($_iconv !== false) {
return $_iconv;
}
}
if ($mbstring_loaded === null)
$mbstring_loaded = extension_loaded('mbstring');
// convert charset using mbstring module
if ($mbstring_loaded) {
$aliases['WINDOWS-1257'] = 'ISO-8859-13';
if ($mbstring_list === null) {
$mbstring_list = mb_list_encodings();
$mbstring_list = array_map('strtoupper', $mbstring_list);
}
$mb_from = $aliases[$from] ? $aliases[$from] : $from;
$mb_to = $aliases[$to] ? $aliases[$to] : $to;
// return if encoding found, string matches encoding and convert succeeded
if (in_array($mb_from, $mbstring_list) && in_array($mb_to, $mbstring_list)) {
if (mb_check_encoding($str, $mb_from) && ($out = mb_convert_encoding($str, $mb_to, $mb_from)))
return $out;
}
}
// convert charset using bundled classes/functions
if ($to == 'UTF-8') {
if ($from == 'UTF7-IMAP') {
if ($_str = utf7_to_utf8($str))
return $_str;
}
else if ($from == 'UTF-7') {
if ($_str = rcube_utf7_to_utf8($str))
return $_str;
}
else if (($from == 'ISO-8859-1') && function_exists('utf8_encode')) {
return utf8_encode($str);
}
else if (class_exists('utf8')) {
if (!$conv)
$conv = new utf8($from);
else
$conv->loadCharset($from);
if($_str = $conv->strToUtf8($str))
return $_str;
}
$error = true;
}
// encode string for output
if ($from == 'UTF-8') {
// @TODO: we need a function for UTF-7 (RFC2152) conversion
if ($to == 'UTF7-IMAP' || $to == 'UTF-7') {
if ($_str = utf8_to_utf7($str))
return $_str;
}
else if ($to == 'ISO-8859-1' && function_exists('utf8_decode')) {
return utf8_decode($str);
}
else if (class_exists('utf8')) {
if (!$conv)
$conv = new utf8($to);
else
$conv->loadCharset($from);
if ($_str = $conv->strToUtf8($str))
return $_str;
}
$error = true;
}
// return UTF-8 or original string
return $str;
}
/**
* Parse and validate charset name string (see #1485758).
* Sometimes charset string is malformed, there are also charset aliases
* but we need strict names for charset conversion (specially utf8 class)
*
* @param string Input charset name
* @return string The validated charset name
*/
function rcube_parse_charset($input)
{
static $charsets = array();
$charset = strtoupper($input);
if (isset($charsets[$input]))
return $charsets[$input];
$charset = preg_replace(array(
'/^[^0-9A-Z]+/', // e.g. _ISO-8859-JP$SIO
'/\$.*$/', // e.g. _ISO-8859-JP$SIO
'/UNICODE-1-1-*/', // RFC1641/1642
'/^X-/', // X- prefix (e.g. X-ROMAN8 => ROMAN8)
), '', $charset);
if ($charset == 'BINARY')
return $charsets[$input] = null;
# Aliases: some of them from HTML5 spec.
$aliases = array(
'USASCII' => 'WINDOWS-1252',
'ANSIX31101983' => 'WINDOWS-1252',
'ANSIX341968' => 'WINDOWS-1252',
'UNKNOWN8BIT' => 'ISO-8859-15',
'UNKNOWN' => 'ISO-8859-15',
'USERDEFINED' => 'ISO-8859-15',
'KSC56011987' => 'EUC-KR',
'GB2312' => 'GBK',
'GB231280' => 'GBK',
'UNICODE' => 'UTF-8',
'UTF7IMAP' => 'UTF7-IMAP',
'TIS620' => 'WINDOWS-874',
'ISO88599' => 'WINDOWS-1254',
'ISO885911' => 'WINDOWS-874',
'MACROMAN' => 'MACINTOSH',
'77' => 'MAC',
'128' => 'SHIFT-JIS',
'129' => 'CP949',
'130' => 'CP1361',
'134' => 'GBK',
'136' => 'BIG5',
'161' => 'WINDOWS-1253',
'162' => 'WINDOWS-1254',
'163' => 'WINDOWS-1258',
'177' => 'WINDOWS-1255',
'178' => 'WINDOWS-1256',
'186' => 'WINDOWS-1257',
'204' => 'WINDOWS-1251',
'222' => 'WINDOWS-874',
'238' => 'WINDOWS-1250',
'MS950' => 'CP950',
'WINDOWS949' => 'UHC',
);
// allow A-Z and 0-9 only
$str = preg_replace('/[^A-Z0-9]/', '', $charset);
if (isset($aliases[$str]))
$result = $aliases[$str];
// UTF
else if (preg_match('/U[A-Z][A-Z](7|8|16|32)(BE|LE)*/', $str, $m))
$result = 'UTF-' . $m[1] . $m[2];
// ISO-8859
else if (preg_match('/ISO8859([0-9]{0,2})/', $str, $m)) {
$iso = 'ISO-8859-' . ($m[1] ? $m[1] : 1);
// some clients sends windows-1252 text as latin1,
// it is safe to use windows-1252 for all latin1
$result = $iso == 'ISO-8859-1' ? 'WINDOWS-1252' : $iso;
}
// handle broken charset names e.g. WINDOWS-1250HTTP-EQUIVCONTENT-TYPE
else if (preg_match('/(WIN|WINDOWS)([0-9]+)/', $str, $m)) {
$result = 'WINDOWS-' . $m[2];
}
// LATIN
else if (preg_match('/LATIN(.*)/', $str, $m)) {
$aliases = array('2' => 2, '3' => 3, '4' => 4, '5' => 9, '6' => 10,
'7' => 13, '8' => 14, '9' => 15, '10' => 16,
'ARABIC' => 6, 'CYRILLIC' => 5, 'GREEK' => 7, 'GREEK1' => 7, 'HEBREW' => 8);
// some clients sends windows-1252 text as latin1,
// it is safe to use windows-1252 for all latin1
if ($m[1] == 1) {
$result = 'WINDOWS-1252';
}
// if iconv is not supported we need ISO labels, it's also safe for iconv
else if (!empty($aliases[$m[1]])) {
$result = 'ISO-8859-'.$aliases[$m[1]];
}
// iconv requires convertion of e.g. LATIN-1 to LATIN1
else {
$result = $str;
}
}
else {
$result = $charset;
}
$charsets[$input] = $result;
return $result;
}
/**
* Converts string from standard UTF-7 (RFC 2152) to UTF-8.
*
* @param string Input string
* @return string The converted string
*/
function rcube_utf7_to_utf8($str)
{
$Index_64 = array(
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,1, 0,0,0,0,
1,1,1,1, 1,1,1,1, 1,1,0,0, 0,0,0,0,
0,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1,
1,1,1,1, 1,1,1,1, 1,1,1,0, 0,0,0,0,
0,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1,
1,1,1,1, 1,1,1,1, 1,1,1,0, 0,0,0,0,
);
$u7len = strlen($str);
$str = strval($str);
$res = '';
for ($i=0; $u7len > 0; $i++, $u7len--)
{
$u7 = $str[$i];
if ($u7 == '+')
{
$i++;
$u7len--;
$ch = '';
for (; $u7len > 0; $i++, $u7len--)
{
$u7 = $str[$i];
if (!$Index_64[ord($u7)])
break;
$ch .= $u7;
}
if ($ch == '') {
if ($u7 == '-')
$res .= '+';
continue;
}
$res .= rcube_utf16_to_utf8(base64_decode($ch));
}
else
{
$res .= $u7;
}
}
return $res;
}
/**
* Converts string from UTF-16 to UTF-8 (helper for utf-7 to utf-8 conversion)
*
* @param string Input string
* @return string The converted string
*/
function rcube_utf16_to_utf8($str)
{
$len = strlen($str);
$dec = '';
for ($i = 0; $i < $len; $i += 2) {
$c = ord($str[$i]) << 8 | ord($str[$i + 1]);
if ($c >= 0x0001 && $c <= 0x007F) {
$dec .= chr($c);
} else if ($c > 0x07FF) {
$dec .= chr(0xE0 | (($c >> 12) & 0x0F));
$dec .= chr(0x80 | (($c >> 6) & 0x3F));
$dec .= chr(0x80 | (($c >> 0) & 0x3F));
} else {
$dec .= chr(0xC0 | (($c >> 6) & 0x1F));
$dec .= chr(0x80 | (($c >> 0) & 0x3F));
}
}
return $dec;
}
/**
* Replacing specials characters to a specific encoding type
*
* @param string Input string
* @param string Encoding type: text|html|xml|js|url
* @param string Replace mode for tags: show|replace|remove
* @param boolean Convert newlines
* @return string The quoted string
*/
function rep_specialchars_output($str, $enctype='', $mode='', $newlines=TRUE)
{
static $html_encode_arr = false;
static $js_rep_table = false;
static $xml_rep_table = false;
if (!$enctype)
$enctype = $OUTPUT->type;
// encode for HTML output
if ($enctype=='html')
{
if (!$html_encode_arr)
{
$html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS);
unset($html_encode_arr['?']);
}
$ltpos = strpos($str, '<');
$encode_arr = $html_encode_arr;
// don't replace quotes and html tags
if (($mode=='show' || $mode=='') && $ltpos!==false && strpos($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);
// avoid douple quotation of &
$out = preg_replace('/&([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', $out);
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();
$xml_rep_table['&'] = '&';
for ($c=160; $c<256; $c++) // can be increased to support more charsets
$xml_rep_table[chr($c)] = "&#$c;";
$xml_rep_table['"'] = '"';
$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))] = '
';
$js_rep_table[chr(hexdec(E2)).chr(hexdec(80)).chr(hexdec(A9))] = '
';
}
// encode for javascript use
if ($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 $str;
}
/**
* Quote a given string.
* Shortcut function for rep_specialchars_output
*
* @return string HTML-quoted string
* @see rep_specialchars_output()
*/
function Q($str, $mode='strict', $newlines=TRUE)
{
return rep_specialchars_output($str, 'html', $mode, $newlines);
}
/**
* Quote a given string for javascript output.
* Shortcut function for rep_specialchars_output
*
* @return string JS-quoted string
* @see rep_specialchars_output()
*/
function JQ($str)
{
return rep_specialchars_output($str, 'js');
}
/**
* Read input value and convert it for internal use
* Performs stripslashes() and charset conversion if necessary
*
* @param string Field name to read
* @param int Source to get value from (GPC)
* @param boolean Allow HTML tags in field value
* @param string Charset to convert into
* @return string Field value or NULL if not available
*/
function get_input_value($fname, $source, $allow_html=FALSE, $charset=NULL)
{
$value = NULL;
if ($source == RCUBE_INPUT_GET) {
if (isset($_GET[$fname]))
$value = $_GET[$fname];
}
else if ($source == RCUBE_INPUT_POST) {
if (isset($_POST[$fname]))
$value = $_POST[$fname];
}
else if ($source == RCUBE_INPUT_GPC) {
if (isset($_POST[$fname]))
$value = $_POST[$fname];
else if (isset($_GET[$fname]))
$value = $_GET[$fname];
else if (isset($_COOKIE[$fname]))
$value = $_COOKIE[$fname];
}
return parse_input_value($value, $allow_html, $charset);
}
/**
* Parse/validate input value. See get_input_value()
* Performs stripslashes() and charset conversion if necessary
*
* @param string Input value
* @param boolean Allow HTML tags in field value
* @param string Charset to convert into
* @return string Parsed value
*/
function parse_input_value($value, $allow_html=FALSE, $charset=NULL)
{
global $OUTPUT;
if (empty($value))
return $value;
if (is_array($value)) {
foreach ($value as $idx => $val)
$value[$idx] = parse_input_value($val, $allow_html, $charset);
return $value;
}
// strip single quotes if magic_quotes_sybase is enabled
if (ini_get('magic_quotes_sybase'))
$value = str_replace("''", "'", $value);
// strip slashes if magic_quotes enabled
else 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')
$value = rc_utf8_clean($value);
// convert to internal charset
if ($charset && $output_charset)
$value = rcube_charset_convert($value, $output_charset, $charset);
return $value;
}
/**
* Convert array of request parameters (prefixed with _)
* to a regular array with non-prefixed keys.
*
* @param int Source to get value from (GPC)
* @return array Hash array with all request parameters
*/
function request2param($mode = RCUBE_INPUT_GPC, $ignore = 'task|action')
{
$out = array();
$src = $mode == RCUBE_INPUT_GET ? $_GET : ($mode == RCUBE_INPUT_POST ? $_POST : $_REQUEST);
foreach ($src as $key => $value) {
$fname = $key[0] == '_' ? substr($key, 1) : $key;
if ($ignore && !preg_match('/^(' . $ignore . ')$/', $fname))
$out[$fname] = get_input_value($key, $mode);
}
return $out;
}
/**
* Remove all non-ascii and non-word chars
* except ., -, _
*/
function asciiwords($str, $css_id = false, $replace_with = '')
{
$allowed = 'a-z0-9\_\-' . (!$css_id ? '\.' : '');
return preg_replace("/[^$allowed]/i", $replace_with, $str);
}
/**
* Convert the given string into a valid HTML identifier
* Same functionality as done in app.js with rcube_webmail.html_identifier()
*/
function html_identifier($str, $encode=false)
{
if ($encode)
return rtrim(strtr(base64_encode($str), '+/', '-_'), '=');
else
return asciiwords($str, true, '_');
}
/**
* Remove single and double quotes from given string
*
* @param string Input value
* @return string Dequoted string
*/
function strip_quotes($str)
{
return str_replace(array("'", '"'), '', $str);
}
/**
* Remove new lines characters from given string
*
* @param string Input value
* @return string Stripped string
*/
function strip_newlines($str)
{
return preg_replace('/[\r\n]/', '', $str);
}
/**
* Create a HTML table based on the given data
*
* @param array Named table attributes
* @param mixed Table row data. Either a two-dimensional array or a valid SQL result set
* @param array List of cols to show
* @param string Name of the identifier col
* @return string HTML table code
*/
function rcube_table_output($attrib, $table_data, $a_show_cols, $id_col)
{
global $RCMAIL;
$table = new html_table(/*array('cols' => count($a_show_cols))*/);
// add table header
if (!$attrib['noheader'])
foreach ($a_show_cols as $col)
$table->add_header($col, Q(rcube_label($col)));
$c = 0;
if (!is_array($table_data))
{
$db = $RCMAIL->get_dbh();
while ($table_data && ($sql_arr = $db->fetch_assoc($table_data)))
{
$table->add_row(array('id' => 'rcmrow' . html_identifier($sql_arr[$id_col])));
// format each col
foreach ($a_show_cols as $col)
$table->add($col, Q($sql_arr[$col]));
$c++;
}
}
else {
foreach ($table_data as $row_data)
{
$class = !empty($row_data['class']) ? $row_data['class'] : '';
$table->add_row(array('id' => 'rcmrow' . html_identifier($row_data[$id_col]), 'class' => $class));
// format each col
foreach ($a_show_cols as $col)
$table->add($col, Q(is_array($row_data[$col]) ? $row_data[$col][0] : $row_data[$col]));
$c++;
}
}
return $table->show($attrib);
}
/**
* Create an edit field for inclusion on a form
*
* @param string col field name
* @param string value field value
* @param array attrib HTML element attributes for field
* @param string type HTML element type (default 'text')
* @return string HTML field definition
*/
function rcmail_get_edit_field($col, $value, $attrib, $type='text')
{
static $colcounts = array();
$fname = '_'.$col;
$attrib['name'] = $fname . ($attrib['array'] ? '[]' : '');
$attrib['class'] = trim($attrib['class'] . ' ff_' . $col);
if ($type == 'checkbox') {
$attrib['value'] = '1';
$input = new html_checkbox($attrib);
}
else if ($type == 'textarea') {
$attrib['cols'] = $attrib['size'];
$input = new html_textarea($attrib);
}
else if ($type == 'select') {
$input = new html_select($attrib);
$input->add('---', '');
$input->add(array_values($attrib['options']), array_keys($attrib['options']));
}
else {
if ($attrib['type'] != 'text' && $attrib['type'] != 'hidden')
$attrib['type'] = 'text';
$input = new html_inputfield($attrib);
}
// use value from post
if (isset($_POST[$fname])) {
$postvalue = get_input_value($fname, RCUBE_INPUT_POST, true);
$value = $attrib['array'] ? $postvalue[intval($colcounts[$col]++)] : $postvalue;
}
$out = $input->show($value);
return $out;
}
/**
* Replace all css definitions with #container [def]
* and remove css-inlined scripting
*
* @param string CSS source code
* @param string Container ID to use as prefix
* @return string Modified CSS source
*/
function rcmail_mod_css_styles($source, $container_id, $allow_remote=false)
{
$last_pos = 0;
$replacements = new rcube_string_replacer;
// ignore the whole block if evil styles are detected
$source = rcmail_xss_entity_decode($source);
$stripped = preg_replace('/[^a-z\(:;]/i', '', $source);
$evilexpr = 'expression|behavior|javascript:|import[^a]' . (!$allow_remote ? '|url\(' : '');
if (preg_match("/$evilexpr/i", $stripped))
return '/* evil! */';
// cut out all contents between { and }
while (($pos = strpos($source, '{', $last_pos)) && ($pos2 = strpos($source, '}', $pos))) {
$styles = substr($source, $pos+1, $pos2-($pos+1));
// 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('!url\s*\([ "\'](https?:)//[a-z0-9/._+-]+["\' ]\)!Uims', $line)) {
$a_styles = array('/* evil! */');
break;
}
}
$styles = join(";\n", $a_styles);
}
$key = $replacements->add($styles);
$source = substr($source, 0, $pos+1) . $replacements->get_replacement($key) . substr($source, $pos2, strlen($source)-$pos2);
$last_pos = $pos+2;
}
// remove html comments and add #container to each tag selector.
// also replace body definition because we also stripped off the <body> tag
$styles = preg_replace(
array(
'/(^\s*<!--)|(-->\s*$)/',
'/(^\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
$styles = $replacements->resolve($styles);
return $styles;
}
/**
* Decode escaped entities used by known XSS exploits.
* See http://downloads.securityfocus.com/vulnerabilities/exploits/26800.eml for examples
*
* @param string CSS content to decode
* @return string Decoded string
*/
function rcmail_xss_entity_decode($content)
{
$out = html_entity_decode(html_entity_decode($content));
$out = preg_replace_callback('/\\\([0-9a-f]{4})/i', 'rcmail_xss_entity_decode_callback', $out);
$out = preg_replace('#/\*.*\*/#Ums', '', $out);
return $out;
}
/**
* preg_replace_callback callback for rcmail_xss_entity_decode_callback
*
* @param array matches result from preg_replace_callback
* @return string decoded entity
*/
function rcmail_xss_entity_decode_callback($matches)
{
return chr(hexdec($matches[1]));
}
/**
* Compose a valid attribute string for HTML tags
*
* @param array Named tag attributes
* @param array List of allowed attributes
* @return string HTML formatted attribute string
*/
function create_attrib_string($attrib, $allowed_attribs=array('id', 'class', 'style'))
{
// allow the following attributes to be added to the <iframe> tag
$attrib_str = '';
foreach ($allowed_attribs as $a)
if (isset($attrib[$a]))
$attrib_str .= sprintf(' %s="%s"', $a, str_replace('"', '"', $attrib[$a]));
return $attrib_str;
}
/**
* Convert a HTML attribute string attributes to an associative array (name => value)
*
* @param string Input string
* @return array Key-value pairs of parsed attributes
*/
function parse_attrib_string($str)
{
$attrib = array();
preg_match_all('/\s*([-_a-z]+)=(["\'])??(?(2)([^\2]*)\2|(\S+?))/Ui', stripslashes($str), $regs, PREG_SET_ORDER);
// convert attributes to an associative array (name => value)
if ($regs) {
foreach ($regs as $attr) {
$attrib[strtolower($attr[1])] = html_entity_decode($attr[3] . $attr[4]);
}
}
return $attrib;
}
/**
* Improved equivalent to strtotime()
*
* @param string Date string
* @return int
*/
function rcube_strtotime($date)
{
// check for MS Outlook vCard date format YYYYMMDD
if (preg_match('/^([12][90]\d\d)([01]\d)(\d\d)$/', trim($date), $matches)) {
return mktime(0,0,0, intval($matches[2]), intval($matches[3]), intval($matches[1]));
}
else if (is_numeric($date))
return $date;
// support non-standard "GMTXXXX" literal
$date = preg_replace('/GMT\s*([+-][0-9]+)/', '\\1', $date);
// if date parsing fails, we have a date in non-rfc format.
// remove token from the end and try again
while ((($ts = @strtotime($date)) === false) || ($ts < 0)) {
$d = explode(' ', $date);
array_pop($d);
if (!$d) break;
$date = implode(' ', $d);
}
return $ts;
}
/**
* Convert the given date to a human readable form
* This uses the date formatting properties from config
*
* @param mixed Date representation (string or timestamp)
* @param string Date format to use
* @param bool Enables date convertion according to user timezone
*
* @return string Formatted date string
*/
function format_date($date, $format=NULL, $convert=true)
{
global $RCMAIL, $CONFIG;
if (!empty($date))
$ts = rcube_strtotime($date);
if (empty($ts))
return '';
if ($convert) {
// get user's timezone offset
$tz = $RCMAIL->config->get_timezone();
// convert time to user's timezone
$timestamp = $ts - date('Z', $ts) + ($tz * 3600);
// get current timestamp in user's timezone
$now = time(); // local time
$now -= (int)date('Z'); // make GMT time
$now += ($tz * 3600); // user's time
}
else {
$now = time();
$timestamp = $ts;
}
// define date format depending on current time
if (!$format) {
$now_date = getdate($now);
$today_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday'], $now_date['year']);
$week_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday']-6, $now_date['year']);
if ($CONFIG['prettydate'] && $timestamp > $today_limit && $timestamp < $now) {
$format = $RCMAIL->config->get('date_today', $RCMAIL->config->get('time_format', 'H:i'));
$today = true;
}
else if ($CONFIG['prettydate'] && $timestamp > $week_limit && $timestamp < $now)
$format = $RCMAIL->config->get('date_short', 'D H:i');
else
$format = $RCMAIL->config->get('date_long', 'Y-m-d H:i');
}
// strftime() format
if (preg_match('/%[a-z]+/i', $format)) {
$format = strftime($format, $timestamp);
return $today ? (rcube_label('today') . ' ' . $format) : $format;
}
// parse format string manually in order to provide localized weekday and month names
// an alternative would be to convert the date() format string to fit with strftime()
$out = '';
for($i=0; $i<strlen($format); $i++) {
if ($format[$i]=='\\') // skip escape chars
continue;
// write char "as-is"
if ($format[$i]==' ' || $format{$i-1}=='\\')
$out .= $format[$i];
// weekday (short)
else if ($format[$i]=='D')
$out .= rcube_label(strtolower(date('D', $timestamp)));
// weekday long
else if ($format[$i]=='l')
$out .= rcube_label(strtolower(date('l', $timestamp)));
// month name (short)
else if ($format[$i]=='M')
$out .= rcube_label(strtolower(date('M', $timestamp)));
// month name (long)
else if ($format[$i]=='F')
$out .= rcube_label('long'.strtolower(date('M', $timestamp)));
else if ($format[$i]=='x')
$out .= strftime('%x %X', $timestamp);
else
$out .= date($format[$i], $timestamp);
}
if ($today) {
$label = rcube_label('today');
// replcae $ character with "Today" label (#1486120)
if (strpos($out, '$') !== false) {
$out = preg_replace('/\$/', $label, $out, 1);
}
else {
$out = $label . ' ' . $out;
}
}
return $out;
}
/**
* Compose a valid representation of name and e-mail address
*
* @param string E-mail address
* @param string Person name
* @return string Formatted string
*/
function format_email_recipient($email, $name='')
{
if ($name && $name != $email) {
// Special chars as defined by RFC 822 need to in quoted string (or escaped).
return sprintf('%s <%s>', preg_match('/[\(\)\<\>\\\.\[\]@,;:"]/', $name) ? '"'.addcslashes($name, '"').'"' : $name, trim($email));
}
return trim($email);
}
/**
* Return the mailboxlist in HTML
*
* @param array Named parameters
* @return string HTML code for the gui object
*/
function rcmail_mailbox_list($attrib)
{
global $RCMAIL;
static $a_mailboxes;
$attrib += array('maxlength' => 100, 'realnames' => false);
// add some labels to client
$RCMAIL->output->add_label('purgefolderconfirm', 'deletemessagesconfirm');
$type = $attrib['type'] ? $attrib['type'] : 'ul';
unset($attrib['type']);
if ($type=='ul' && !$attrib['id'])
$attrib['id'] = 'rcmboxlist';
if (empty($attrib['folder_name']))
$attrib['folder_name'] = '*';
// get mailbox list
$mbox_name = $RCMAIL->imap->get_mailbox_name();
// build the folders tree
if (empty($a_mailboxes)) {
// get mailbox list
$a_folders = $RCMAIL->imap->list_mailboxes('', $attrib['folder_name'], $attrib['folder_filter']);
$delimiter = $RCMAIL->imap->get_hierarchy_delimiter();
$a_mailboxes = array();
foreach ($a_folders as $folder)
rcmail_build_folder_tree($a_mailboxes, $folder, $delimiter);
}
// allow plugins to alter the folder tree or to localize folder names
$hook = $RCMAIL->plugins->exec_hook('render_mailboxlist', array('list' => $a_mailboxes, 'delimiter' => $delimiter));
if ($type == 'select') {
$select = new html_select($attrib);
// add no-selection option
if ($attrib['noselection'])
$select->add(rcube_label($attrib['noselection']), '');
rcmail_render_folder_tree_select($hook['list'], $mbox_name, $attrib['maxlength'], $select, $attrib['realnames']);
$out = $select->show();
}
else {
$js_mailboxlist = array();
$out = html::tag('ul', $attrib, rcmail_render_folder_tree_html($hook['list'], $mbox_name, $js_mailboxlist, $attrib), html::$common_attrib);
$RCMAIL->output->add_gui_object('mailboxlist', $attrib['id']);
$RCMAIL->output->set_env('mailboxes', $js_mailboxlist);
$RCMAIL->output->set_env('collapsed_folders', (string)$RCMAIL->config->get('collapsed_folders'));
}
return $out;
}
/**
* Return the mailboxlist as html_select object
*
* @param array Named parameters
* @return html_select HTML drop-down object
*/
function rcmail_mailbox_select($p = array())
{
global $RCMAIL;
$p += array('maxlength' => 100, 'realnames' => false);
$a_mailboxes = array();
if (empty($p['folder_name']))
$p['folder_name'] = '*';
if ($p['unsubscribed'])
$list = $RCMAIL->imap->list_unsubscribed('', $p['folder_name'], $p['folder_filter'], $p['folder_rights']);
else
$list = $RCMAIL->imap->list_mailboxes('', $p['folder_name'], $p['folder_filter'], $p['folder_rights']);
$delimiter = $RCMAIL->imap->get_hierarchy_delimiter();
foreach ($list as $folder) {
if (empty($p['exceptions']) || !in_array($folder, $p['exceptions']))
rcmail_build_folder_tree($a_mailboxes, $folder, $delimiter);
}
$select = new html_select($p);
if ($p['noselection'])
$select->add($p['noselection'], '');
rcmail_render_folder_tree_select($a_mailboxes, $mbox, $p['maxlength'], $select, $p['realnames'], 0, $p);
return $select;
}
/**
* Create a hierarchical array of the mailbox list
* @access private
* @return void
*/
function rcmail_build_folder_tree(&$arrFolders, $folder, $delm='/', $path='')
{
global $RCMAIL;
// Handle namespace prefix
$prefix = '';
if (!$path) {
$n_folder = $folder;
$folder = $RCMAIL->imap->mod_mailbox($folder);
if ($n_folder != $folder) {
$prefix = substr($n_folder, 0, -strlen($folder));
}
}
$pos = strpos($folder, $delm);
if ($pos !== false) {
$subFolders = substr($folder, $pos+1);
$currentFolder = substr($folder, 0, $pos);
// sometimes folder has a delimiter as the last character
if (!strlen($subFolders))
$virtual = false;
else if (!isset($arrFolders[$currentFolder]))
$virtual = true;
else
$virtual = $arrFolders[$currentFolder]['virtual'];
}
else {
$subFolders = false;
$currentFolder = $folder;
$virtual = false;
}
$path .= $prefix.$currentFolder;
if (!isset($arrFolders[$currentFolder])) {
$arrFolders[$currentFolder] = array(
'id' => $path,
'name' => rcube_charset_convert($currentFolder, 'UTF7-IMAP'),
'virtual' => $virtual,
'folders' => array());
}
else
$arrFolders[$currentFolder]['virtual'] = $virtual;
if (strlen($subFolders))
rcmail_build_folder_tree($arrFolders[$currentFolder]['folders'], $subFolders, $delm, $path.$delm);
}
/**
* Return html for a structured list <ul> for the mailbox tree
* @access private
* @return string
*/
function rcmail_render_folder_tree_html(&$arrFolders, &$mbox_name, &$jslist, $attrib, $nestLevel=0)
{
global $RCMAIL, $CONFIG;
$maxlength = intval($attrib['maxlength']);
$realnames = (bool)$attrib['realnames'];
$msgcounts = $RCMAIL->imap->get_cache('messagecount');
$out = '';
foreach ($arrFolders as $key => $folder) {
$title = null;
$folder_class = rcmail_folder_classname($folder['id']);
$collapsed = strpos($CONFIG['collapsed_folders'], '&'.rawurlencode($folder['id']).'&') !== false;
$unread = $msgcounts ? intval($msgcounts[$folder['id']]['UNSEEN']) : 0;
if ($folder_class && !$realnames) {
$foldername = rcube_label($folder_class);
}
else {
$foldername = $folder['name'];
// shorten the folder name to a given length
if ($maxlength && $maxlength > 1) {
$fname = abbreviate_string($foldername, $maxlength);
if ($fname != $foldername)
$title = $foldername;
$foldername = $fname;
}
}
// make folder name safe for ids and class names
$folder_id = html_identifier($folder['id'], true);
$classes = array('mailbox');
// set special class for Sent, Drafts, Trash and Junk
if ($folder_class)
$classes[] = $folder_class;
if ($folder['id'] == $mbox_name)
$classes[] = 'selected';
if ($folder['virtual'])
$classes[] = 'virtual';
else if ($unread)
$classes[] = 'unread';
$js_name = JQ($folder['id']);
$html_name = Q($foldername) . ($unread ? html::span('unreadcount', " ($unread)") : '');
$link_attrib = $folder['virtual'] ? array() : array(
'href' => rcmail_url('', array('_mbox' => $folder['id'])),
'onclick' => sprintf("return %s.command('list','%s',this)", JS_OBJECT_NAME, $js_name),
'rel' => $folder['id'],
'title' => $title,
);
$out .= html::tag('li', array(
'id' => "rcmli".$folder_id,
'class' => join(' ', $classes),
'noclose' => true),
html::a($link_attrib, $html_name) .
(!empty($folder['folders']) ? html::div(array(
'class' => ($collapsed ? 'collapsed' : 'expanded'),
'style' => "position:absolute",
'onclick' => sprintf("%s.command('collapse-folder', '%s')", JS_OBJECT_NAME, $js_name)
), ' ') : ''));
$jslist[$folder_id] = array('id' => $folder['id'], 'name' => $foldername, 'virtual' => $folder['virtual']);
if (!empty($folder['folders'])) {
$out .= html::tag('ul', array('style' => ($collapsed ? "display:none;" : null)),
rcmail_render_folder_tree_html($folder['folders'], $mbox_name, $jslist, $attrib, $nestLevel+1));
}
$out .= "</li>\n";
}
return $out;
}
/**
* Return html for a flat list <select> for the mailbox tree
* @access private
* @return string
*/
function rcmail_render_folder_tree_select(&$arrFolders, &$mbox_name, $maxlength, &$select, $realnames=false, $nestLevel=0, $opts=array())
{
global $RCMAIL;
$out = '';
foreach ($arrFolders as $key => $folder) {
// skip exceptions (and its subfolders)
if (!empty($opts['exceptions']) && in_array($folder['id'], $opts['exceptions'])) {
continue;
}
// skip folders in which it isn't possible to create subfolders
if (!empty($opts['skip_noinferiors']) && ($attrs = $RCMAIL->imap->mailbox_attributes($folder['id']))
&& in_array('\\Noinferiors', $attrs)
) {
continue;
}
if (!$realnames && ($folder_class = rcmail_folder_classname($folder['id'])))
$foldername = rcube_label($folder_class);
else {
$foldername = $folder['name'];
// shorten the folder name to a given length
if ($maxlength && $maxlength>1)
$foldername = abbreviate_string($foldername, $maxlength);
}
$select->add(str_repeat(' ', $nestLevel*4) . $foldername, $folder['id']);
if (!empty($folder['folders']))
$out .= rcmail_render_folder_tree_select($folder['folders'], $mbox_name, $maxlength,
$select, $realnames, $nestLevel+1, $opts);
}
return $out;
}
/**
* Return internal name for the given folder if it matches the configured special folders
* @access private
* @return string
*/
function rcmail_folder_classname($folder_id)
{
global $CONFIG;
if ($folder_id == 'INBOX')
return 'inbox';
// for these mailboxes we have localized labels and css classes
foreach (array('sent', 'drafts', 'trash', 'junk') as $smbx)
{
if ($folder_id == $CONFIG[$smbx.'_mbox'])
return $smbx;
}
}
/**
* Try to localize the given IMAP folder name.
* UTF-7 decode it in case no localized text was found
*
* @param string Folder name
* @return string Localized folder name in UTF-8 encoding
*/
function rcmail_localize_foldername($name)
{
if ($folder_class = rcmail_folder_classname($name))
return rcube_label($folder_class);
else
return rcube_charset_convert($name, 'UTF7-IMAP');
}
function rcmail_localize_folderpath($path)
{
global $RCMAIL;
$protect_folders = $RCMAIL->config->get('protect_default_folders');
$default_folders = (array) $RCMAIL->config->get('default_imap_folders');
$delimiter = $RCMAIL->imap->get_hierarchy_delimiter();
$path = explode($delimiter, $path);
$result = array();
foreach ($path as $idx => $dir) {
$directory = implode($delimiter, array_slice($path, 0, $idx+1));
if ($protect_folders && in_array($directory, $default_folders)) {
unset($result);
$result[] = rcmail_localize_foldername($directory);
}
else {
$result[] = rcube_charset_convert($dir, 'UTF7-IMAP');
}
}
return implode($delimiter, $result);
}
function rcmail_quota_display($attrib)
{
global $OUTPUT;
if (!$attrib['id'])
$attrib['id'] = 'rcmquotadisplay';
if(isset($attrib['display']))
$_SESSION['quota_display'] = $attrib['display'];
$OUTPUT->add_gui_object('quotadisplay', $attrib['id']);
$quota = rcmail_quota_content($attrib);
$OUTPUT->add_script('rcmail.set_quota('.json_serialize($quota).');', 'docready');
return html::span($attrib, '');
}
function rcmail_quota_content($attrib=NULL)
{
global $RCMAIL;
$quota = $RCMAIL->imap->get_quota();
$quota = $RCMAIL->plugins->exec_hook('quota', $quota);
$quota_result = (array) $quota;
$quota_result['type'] = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';
if (!$quota['total'] && $RCMAIL->config->get('quota_zero_as_unlimited')) {
$quota_result['title'] = rcube_label('unlimited');
$quota_result['percent'] = 0;
}
else if ($quota['total']) {
if (!isset($quota['percent']))
$quota_result['percent'] = min(100, round(($quota['used']/max(1,$quota['total']))*100));
$title = sprintf('%s / %s (%.0f%%)',
show_bytes($quota['used'] * 1024), show_bytes($quota['total'] * 1024),
$quota_result['percent']);
$quota_result['title'] = $title;
if ($attrib['width'])
$quota_result['width'] = $attrib['width'];
if ($attrib['height'])
$quota_result['height'] = $attrib['height'];
}
else {
$quota_result['title'] = rcube_label('unknown');
$quota_result['percent'] = 0;
}
return $quota_result;
}
/**
* Outputs error message according to server error/response codes
*
* @param string Fallback message label
* @param string Fallback message label arguments
*
* @return void
*/
function rcmail_display_server_error($fallback=null, $fallback_args=null)
{
global $RCMAIL;
$err_code = $RCMAIL->imap->get_error_code();
$res_code = $RCMAIL->imap->get_response_code();
if ($res_code == rcube_imap::NOPERM) {
$RCMAIL->output->show_message('errornoperm', 'error');
}
else if ($res_code == rcube_imap::READONLY) {
$RCMAIL->output->show_message('errorreadonly', 'error');
}
else if ($err_code && ($err_str = $RCMAIL->imap->get_error_str())) {
// try to detect access rights problem and display appropriate message
if (stripos($err_str, 'Permission denied') !== false)
$RCMAIL->output->show_message('errornoperm', 'error');
else
$RCMAIL->output->show_message('servererrormsg', 'error', array('msg' => $err_str));
}
else if ($fallback) {
$RCMAIL->output->show_message($fallback, 'error', $fallback_args);
}
return true;
}
/**
* Output HTML editor scripts
*
* @param string Editor mode
* @return void
*/
function rcube_html_editor($mode='')
{
global $RCMAIL, $CONFIG;
$hook = $RCMAIL->plugins->exec_hook('html_editor', array('mode' => $mode));
if ($hook['abort'])
return;
$lang = strtolower($_SESSION['language']);
// TinyMCE uses 'tw' for zh_TW (which is wrong, because tw is a code of Twi language)
$lang = ($lang == 'zh_tw') ? 'tw' : substr($lang, 0, 2);
if (!file_exists(INSTALL_PATH . 'program/js/tiny_mce/langs/'.$lang.'.js'))
$lang = 'en';
$RCMAIL->output->include_script('tiny_mce/tiny_mce.js');
$RCMAIL->output->include_script('editor.js');
$RCMAIL->output->add_script(sprintf("rcmail_editor_init(%s)",
json_encode(array(
'mode' => $mode,
'skin_path' => '$__skin_path',
'lang' => $lang,
'spellcheck' => intval($CONFIG['enable_spellcheck']),
'spelldict' => intval($CONFIG['spellcheck_dictionary']),
))), 'foot');
}
/**
* Replaces TinyMCE's emoticon images with plain-text representation
*
* @param string HTML content
* @return string HTML content
*/
function rcmail_replace_emoticons($html)
{
$emoticons = array(
'8-)' => 'smiley-cool',
':-#' => 'smiley-foot-in-mouth',
':-*' => 'smiley-kiss',
':-X' => 'smiley-sealed',
':-P' => 'smiley-tongue-out',
':-@' => 'smiley-yell',
":'(" => 'smiley-cry',
':-(' => 'smiley-frown',
':-D' => 'smiley-laughing',
':-)' => 'smiley-smile',
':-S' => 'smiley-undecided',
':-$' => 'smiley-embarassed',
'O:-)' => 'smiley-innocent',
':-|' => 'smiley-money-mouth',
':-O' => 'smiley-surprised',
';-)' => 'smiley-wink',
);
foreach ($emoticons as $idx => $file) {
// <img title="Cry" src="http://.../program/js/tiny_mce/plugins/emotions/img/smiley-cry.gif" border="0" alt="Cry" />
$search[] = '/<img title="[a-z ]+" src="https?:\/\/[a-z0-9_.\/-]+\/tiny_mce\/plugins\/emotions\/img\/'.$file.'.gif"[^>]+\/>/i';
$replace[] = $idx;
}
return preg_replace($search, $replace, $html);
}
/**
* Send the given message using the configured method
*
* @param object $message Reference to Mail_MIME object
* @param string $from Sender address string
* @param array $mailto Array of recipient address strings
* @param array $smtp_error SMTP error array (reference)
* @param string $body_file Location of file with saved message body (reference),
* used when delay_file_io is enabled
* @param array $smtp_opts SMTP options (e.g. DSN request)
*
* @return boolean Send status.
*/
function rcmail_deliver_message(&$message, $from, $mailto, &$smtp_error, &$body_file=null, $smtp_opts=null)
{
global $CONFIG, $RCMAIL;
$headers = $message->headers();
// send thru SMTP server using custom SMTP library
if ($CONFIG['smtp_server']) {
// generate list of recipients
$a_recipients = array($mailto);
if (strlen($headers['Cc']))
$a_recipients[] = $headers['Cc'];
if (strlen($headers['Bcc']))
$a_recipients[] = $headers['Bcc'];
// clean Bcc from header for recipients
$send_headers = $headers;
unset($send_headers['Bcc']);
// here too, it because txtHeaders() below use $message->_headers not only $send_headers
unset($message->_headers['Bcc']);
$smtp_headers = $message->txtHeaders($send_headers, true);
if ($message->getParam('delay_file_io')) {
// use common temp dir
$temp_dir = $RCMAIL->config->get('temp_dir');
$body_file = tempnam($temp_dir, 'rcmMsg');
if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
raise_error(array('code' => 650, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Could not create message: ".$mime_result->getMessage()),
TRUE, FALSE);
return false;
}
$msg_body = fopen($body_file, 'r');
} else {
$msg_body = $message->get();
}
// send message
if (!is_object($RCMAIL->smtp))
$RCMAIL->smtp_init(true);
$sent = $RCMAIL->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $smtp_opts);
$smtp_response = $RCMAIL->smtp->get_response();
$smtp_error = $RCMAIL->smtp->get_error();
// log error
if (!$sent)
raise_error(array('code' => 800, 'type' => 'smtp', 'line' => __LINE__, 'file' => __FILE__,
'message' => "SMTP error: ".join("\n", $smtp_response)), TRUE, FALSE);
}
// send mail using PHP's mail() function
else {
// unset some headers because they will be added by the mail() function
$headers_enc = $message->headers($headers);
$headers_php = $message->_headers;
unset($headers_php['To'], $headers_php['Subject']);
// reset stored headers and overwrite
$message->_headers = array();
$header_str = $message->txtHeaders($headers_php);
// #1485779
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
$headers_enc['To'] = implode(', ', $m[1]);
}
}
$msg_body = $message->get();
if (PEAR::isError($msg_body))
raise_error(array('code' => 650, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Could not create message: ".$msg_body->getMessage()),
TRUE, FALSE);
else {
$delim = $RCMAIL->config->header_delimiter();
$to = $headers_enc['To'];
$subject = $headers_enc['Subject'];
$header_str = rtrim($header_str);
if ($delim != "\r\n") {
$header_str = str_replace("\r\n", $delim, $header_str);
$msg_body = str_replace("\r\n", $delim, $msg_body);
$to = str_replace("\r\n", $delim, $to);
$subject = str_replace("\r\n", $delim, $subject);
}
if (ini_get('safe_mode'))
$sent = mail($to, $subject, $msg_body, $header_str);
else
$sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
}
}
if ($sent) {
$RCMAIL->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));
// remove MDN headers after sending
unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
// get all recipients
if ($headers['Cc'])
$mailto .= $headers['Cc'];
if ($headers['Bcc'])
$mailto .= $headers['Bcc'];
if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
$mailto = implode(', ', array_unique($m[1]));
if ($CONFIG['smtp_log']) {
write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
$RCMAIL->user->get_username(),
$_SERVER['REMOTE_ADDR'],
$mailto,
!empty($smtp_response) ? join('; ', $smtp_response) : ''));
}
}
if (is_resource($msg_body)) {
fclose($msg_body);
}
$message->_headers = array();
$message->headers($headers);
return $sent;
}
// Returns unique Message-ID
function rcmail_gen_message_id()
{
global $RCMAIL;
$local_part = md5(uniqid('rcmail'.mt_rand(),true));
$domain_part = $RCMAIL->user->get_username('domain');
// Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']))
&& preg_match('/\.[a-z]+$/i', $host)) {
$domain_part = $host;
}
else if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['SERVER_NAME']))
&& preg_match('/\.[a-z]+$/i', $host)) {
$domain_part = $host;
}
}
return sprintf('<%s@%s>', $local_part, $domain_part);
}
// Returns RFC2822 formatted current date in user's timezone
function rcmail_user_date()
{
global $RCMAIL, $CONFIG;
// get user's timezone
$tz = $RCMAIL->config->get_timezone();
$date = time() + $tz * 60 * 60;
$date = gmdate('r', $date);
$tz = sprintf('%+05d', intval($tz) * 100 + ($tz - intval($tz)) * 60);
$date = preg_replace('/[+-][0-9]{4}$/', $tz, $date);
return $date;
}
/**
* Check if working in SSL mode
*
* @param integer HTTPS port number
* @param boolean Enables 'use_https' option checking
* @return boolean
*/
function rcube_https_check($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;
}
/**
* For backward compatibility.
*
* @global rcmail $RCMAIL
* @param string $var_name Variable name.
* @return void
*/
function rcube_sess_unset($var_name=null)
{
global $RCMAIL;
$RCMAIL->session->remove($var_name);
}
/**
* Replaces hostname variables
*
* @param string $name Hostname
* @param string $host Optional IMAP hostname
* @return string
*/
function rcube_parse_host($name, $host='')
{
// %n - host
$n = preg_replace('/:\d+$/', '', $_SERVER['SERVER_NAME']);
// %d - domain name without first part, e.g. %n=mail.domain.tld, %d=domain.tld
$d = preg_replace('/^[^\.]+\./', '', $n);
// %h - IMAP host
$h = $_SESSION['imap_host'] ? $_SESSION['imap_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 = rcube_idn_convert(get_input_value('_user', RCUBE_INPUT_POST), true);
if ( preg_match('/(.*)@([a-z0-9\.\-\[\]\:]+)/i', $user_email, $s) < 1 || filter_var($s[1]."@".$s[2], FILTER_VALIDATE_EMAIL) === false )
return false;
}
$name = str_replace(array('%n', '%d', '%h', '%z', '%s'), array($n, $d, $h, $z, $s[2]), $name);
return $name;
}
/**
* E-mail address validation
*
* @param string $email Email address
* @param boolean $dns_check True to check dns
* @return boolean
*/
function check_email($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;
// Check domain part
if (preg_match('/^\[*(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}\]*$/', $domain_part))
return true; // IP address
else {
// If not an IP address
$domain_array = explode('.', $domain_part);
if (sizeof($domain_array) < 2)
return false; // Not enough parts to be a valid domain
foreach ($domain_array as $part)
if (!preg_match('/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]))$/', $part))
return false;
if (!$dns_check || !rcmail::get_instance()->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 (getmxrr($domain_part, $mx_records))
return true;
// find any DNS record
if (checkdnsrr($domain_part, 'ANY'))
return true;
}
return false;
}
/*
* Idn_to_ascii wrapper.
* Intl/Idn modules version of this function doesn't work with e-mail address
*/
function rcube_idn_to_ascii($str)
{
return rcube_idn_convert($str, true);
}
/*
* Idn_to_ascii wrapper.
* Intl/Idn modules version of this function doesn't work with e-mail address
*/
function rcube_idn_to_utf8($str)
{
return rcube_idn_convert($str, false);
}
function rcube_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;
}
/**
* Helper class to turn relative urls into absolute ones
* using a predefined base
*/
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|>)/Ui',
'/(url\s*\()(["\']?)([^"\'\)\s]+)(\2)\)/Ui',
),
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, '/'));
}
$path = substr($path, 3);
}
}
$abs_path = $base_url.'/'.$path;
}
return $abs_path;
}
}
/****** debugging and logging functions ********/
/**
* Print or write debug messages
*
* @param mixed Debug message or data
* @return void
*/
function console()
{
$args = func_get_args();
if (class_exists('rcmail', false)) {
$rcmail = rcmail::get_instance();
if (is_object($rcmail->plugins)) {
$plugin = $rcmail->plugins->exec_hook('console', array('args' => $args));
if ($plugin['abort'])
return;
$args = $plugin['args'];
}
}
$msg = array();
foreach ($args as $arg)
$msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
write_log('console', join(";\n", $msg));
}
/**
* Append a line to a logfile in the logs directory.
* Date will be added automatically to the line.
*
* @param $name name of log file
* @param line Line to append
* @return void
*/
function write_log($name, $line)
{
global $CONFIG, $RCMAIL;
if (!is_string($line))
$line = var_export($line, true);
if (empty($CONFIG['log_date_format']))
$CONFIG['log_date_format'] = 'd-M-Y H:i:s O';
$date = date($CONFIG['log_date_format']);
// trigger logging hook
if (is_object($RCMAIL) && is_object($RCMAIL->plugins)) {
$log = $RCMAIL->plugins->exec_hook('write_log', array('name' => $name, 'date' => $date, 'line' => $line));
$name = $log['name'];
$line = $log['line'];
$date = $log['date'];
if ($log['abort'])
return true;
}
if ($CONFIG['log_driver'] == 'syslog') {
$prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
syslog($prio, $line);
return true;
}
else {
$line = sprintf("[%s]: %s\n", $date, $line);
// log_driver == 'file' is assumed here
if (empty($CONFIG['log_dir']))
$CONFIG['log_dir'] = INSTALL_PATH.'logs';
// try to open specific log file for writing
$logfile = $CONFIG['log_dir'].'/'.$name;
if ($fp = @fopen($logfile, 'a')) {
fwrite($fp, $line);
fflush($fp);
fclose($fp);
return true;
}
else
trigger_error("Error writing to log file $logfile; Please check permissions", E_USER_WARNING);
}
return false;
}
/**
* Write login data (name, ID, IP address) to the 'userlogins' log file.
*
* @return void
*/
function rcmail_log_login()
{
global $RCMAIL;
if (!$RCMAIL->config->get('log_logins') || !$RCMAIL->user)
return;
write_log('userlogins', sprintf('Successful login for %s (ID: %d) from %s in session %s',
$RCMAIL->user->get_username(), $RCMAIL->user->ID, rcmail_remote_ip(), session_id()));
}
/**
* Returns remote IP address and forwarded addresses if found
*
* @return string Remote IP address(es)
*/
function rcmail_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;
}
/**
* Check whether the HTTP referer matches the current request
*
* @return boolean True if referer is the same host+path, false if not
*/
function rcube_check_referer()
{
$uri = parse_url($_SERVER['REQUEST_URI']);
$referer = parse_url(rc_request_header('Referer'));
return $referer['host'] == rc_request_header('Host') && $referer['path'] == $uri['path'];
}
/**
* @access private
* @return mixed
*/
function rcube_timer()
{
return microtime(true);
}
/**
* @access private
* @return void
*/
function rcube_print_time($timer, $label='Timer', $dest='console')
{
static $print_count = 0;
$print_count++;
$now = rcube_timer();
$diff = $now-$timer;
if (empty($label))
$label = 'Timer '.$print_count;
write_log($dest, sprintf("%s: %0.4f sec", $label, $diff));
}
/**
* Throw system error and show error page
*
* @param array Named parameters
* - code: Error code (required)
* - type: Error type [php|db|imap|javascript] (required)
* - message: Error message
* - file: File where error occured
* - line: Line where error occured
* @param boolean True to log the error
* @param boolean Terminate script execution
*/
// may be defined in Installer
if (!function_exists('raise_error')) {
function raise_error($arg=array(), $log=false, $terminate=false)
{
global $__page_content, $CONFIG, $OUTPUT, $ERROR_CODE, $ERROR_MESSAGE;
// report bug (if not incompatible browser)
if ($log && $arg['type'] && $arg['message'])
rcube_log_bug($arg);
// display error page and terminate script
if ($terminate) {
$ERROR_CODE = $arg['code'];
$ERROR_MESSAGE = $arg['message'];
include INSTALL_PATH . 'program/steps/utils/error.inc';
exit;
}
}
}
/**
* Report error according to configured debug_level
*
* @param array Named parameters
* @return void
* @see raise_error()
*/
function rcube_log_bug($arg_arr)
{
global $CONFIG;
$program = strtoupper($arg_arr['type']);
$level = $CONFIG['debug_level'];
// disable errors for ajax requests, write to log instead (#1487831)
if (($level & 4) && !empty($_REQUEST['_remote'])) {
$level = ($level ^ 4) | 1;
}
// write error to local log file
if ($level & 1) {
$post_query = ($_SERVER['REQUEST_METHOD'] == 'POST' ? '?_task='.urlencode($_POST['_task']).'&_action='.urlencode($_POST['_action']) : '');
$log_entry = sprintf("%s Error: %s%s (%s %s)",
$program,
$arg_arr['message'],
$arg_arr['file'] ? sprintf(' in %s on line %d', $arg_arr['file'], $arg_arr['line']) : '',
$_SERVER['REQUEST_METHOD'],
$_SERVER['REQUEST_URI'] . $post_query);
if (!write_log('errors', $log_entry)) {
// send error to PHPs error handler if write_log didn't succeed
trigger_error($arg_arr['message']);
}
}
// report the bug to the global bug reporting system
if ($level & 2) {
// TODO: Send error via HTTP
}
// show error if debug_mode is on
if ($level & 4) {
print "<b>$program Error";
if (!empty($arg_arr['file']) && !empty($arg_arr['line']))
print " in $arg_arr[file] ($arg_arr[line])";
print ':</b> ';
print nl2br($arg_arr['message']);
print '<br />';
flush();
}
}
function rcube_upload_progress()
{
global $RCMAIL;
$prefix = ini_get('apc.rfc1867_prefix');
$params = array(
'action' => $RCMAIL->action,
'name' => get_input_value('_progress', RCUBE_INPUT_GET),
);
if (function_exists('apc_fetch')) {
$status = apc_fetch($prefix . $params['name']);
if (!empty($status)) {
$status['percent'] = round($status['current']/$status['total']*100);
$params = array_merge($status, $params);
}
}
if (isset($params['percent']))
$params['text'] = rcube_label(array('name' => 'uploadprogress', 'vars' => array(
'percent' => $params['percent'] . '%',
'current' => show_bytes($params['current']),
'total' => show_bytes($params['total'])
)));
$RCMAIL->output->command('upload_progress_update', $params);
$RCMAIL->output->send();
}
function rcube_upload_init()
{
global $RCMAIL;
// Enable upload progress bar
if (($seconds = $RCMAIL->config->get('upload_progress')) && ini_get('apc.rfc1867')) {
if ($field_name = ini_get('apc.rfc1867_name')) {
$RCMAIL->output->set_env('upload_progress_name', $field_name);
$RCMAIL->output->set_env('upload_progress_time', (int) $seconds);
}
}
// find max filesize value
$max_filesize = parse_bytes(ini_get('upload_max_filesize'));
$max_postsize = parse_bytes(ini_get('post_max_size'));
if ($max_postsize && $max_postsize < $max_filesize)
$max_filesize = $max_postsize;
$RCMAIL->output->set_env('max_filesize', $max_filesize);
$max_filesize = show_bytes($max_filesize);
$RCMAIL->output->set_env('filesizeerror', rcube_label(array(
'name' => 'filesizeerror', 'vars' => array('size' => $max_filesize))));
return $max_filesize;
}
/**
* Initializes client-side autocompletion
*/
function rcube_autocomplete_init()
{
global $RCMAIL;
static $init;
if ($init)
return;
$init = 1;
if (($threads = (int)$RCMAIL->config->get('autocomplete_threads')) > 0) {
$book_types = (array) $RCMAIL->config->get('autocomplete_addressbooks', 'sql');
if (count($book_types) > 1) {
$RCMAIL->output->set_env('autocomplete_threads', $threads);
$RCMAIL->output->set_env('autocomplete_sources', $book_types);
}
}
$RCMAIL->output->set_env('autocomplete_max', (int)$RCMAIL->config->get('autocomplete_max', 15));
$RCMAIL->output->set_env('autocomplete_min_length', $RCMAIL->config->get('autocomplete_min_length'));
$RCMAIL->output->add_label('autocompletechars', 'autocompletemore');
}
