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<?php
/*
+-----------------------------------------------------------------------+
| program/include/main.inc |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2005-2009, RoundCube Dev, - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Provide basic functions for the webmail package |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id: main.inc 2852 2009-08-10 21:32:44Z thomasb $
*/
/**
* RoundCube Webmail common functions
*
* @package Core
* @author Thomas Bruederli <roundcube@gmail.com>
*/
require_once('lib/utf7.inc');
require_once('include/rcube_shared.inc');
// fallback if not PHP modules are available
@include_once('lib/des.inc');
@include_once('lib/utf8.class.php');
// 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 table name if configured
$config_key = 'db_sequence_'.$sequence;
$opt = rcmail::get_instance()->config->get($config_key);
if (!empty($opt))
return $opt;
return $sequence;
}
/**
* Get localized text in the desired language
* It's a global wrapper for rcmail::gettext()
*
* @param mixed Named parameters array or label name
* @return string Localized text
* @see rcmail::gettext()
*/
function rcube_label($p, $domain=null)
{
return rcmail::get_instance()->gettext($p, $domain);
}
/**
* Overwrite action variable
*
* @param string New action value
*/
function rcmail_overwrite_action($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
*/
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);
$db->query("DELETE FROM ".get_table_name('messages')."
WHERE created < " . $db->fromunixtime($ts));
$db->query("DELETE FROM ".get_table_name('cache')."
WHERE created < " . $db->fromunixtime($ts));
}
/**
* 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 Converted string
*/
function rcube_charset_convert($str, $from, $to=NULL)
{
static $mbstring_loaded = null;
static $mbstring_list = null;
static $convert_warning = false;
static $conv = null;
$error = false;
$to = empty($to) ? $to = strtoupper(RCMAIL_CHARSET) : rcube_parse_charset($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 != 'UTF-7' && $to != 'UTF-7') {
$_iconv = iconv($from, $to . '//IGNORE', $str);
if ($_iconv !== false) {
return $_iconv;
}
}
if (is_null($mbstring_loaded))
$mbstring_loaded = extension_loaded('mbstring');
// convert charset using mbstring module
if ($mbstring_loaded) {
$aliases['WINDOWS-1257'] = 'ISO-8859-13';
if (is_null($mbstring_list)) {
$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;
}
$error = true;
}
// report error
if ($error && !$convert_warning) {
raise_error(array(
'code' => 500,
'type' => 'php',
'file' => __FILE__,
'line' => __LINE__,
'message' => "Could not convert string from $from to $to. Make sure iconv/mbstring is installed or lib/utf8.class is available."
), true, false);
$convert_warning = true;
}
// return UTF-8 or original string
return $str;
}
/**
* Parse and validate charset name string (see #1485758).
* Sometimes charset string is malformed, there are also charset aliases
* but we need strict names for charset conversion (specially utf8 class)
*
* @param string Input charset name
* @return The validated charset name
*/
function rcube_parse_charset($charset)
{
$charset = strtoupper($charset);
# RFC1642
$charset = str_replace('UNICODE-1-1-', '', $charset);
# 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',
);
// allow a-z and 0-9 only and remove X- prefix (e.g. X-ROMAN8 => ROMAN8)
$str = preg_replace(array('/[^a-z0-9]/i', '/^x+/i'), '', $charset);
if (isset($aliases[$str]))
return $aliases[$str];
if (preg_match('/UTF(7|8|16|32)(BE|LE)*/', $str, $m))
return 'UTF-' . $m[1] . $m[2];
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
return $iso == 'ISO-8859-1' ? 'WINDOWS-1252' : $iso;
}
return $charset;
}
/**
* Converts string from standard UTF-7 (RFC 2152) to UTF-8.
*
* @param string Input string
* @return The converted string
*/
function rcube_utf7_to_utf8($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 $res;
}
/**
* Converts string from UTF-16 to UTF-8 (helper for utf-7 to utf-8 conversion)
*
* @param string Input string
* @return The converted string
*/
function rcube_utf16_to_utf8($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 $dec;
}
/**
* Replacing specials characters to a specific encoding type
*
* @param string Input string
* @param string Encoding type: text|html|xml|js|url
* @param string Replace mode for tags: show|replace|remove
* @param boolean Convert newlines
* @return The quoted string
*/
function rep_specialchars_output($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);
// avoid douple quotation of &
$out = preg_replace('/&([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', strtr($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();
$xml_rep_table['&'] = '&';
for ($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["'"] = "\\'";
$js_rep_table["\\"] = "\\\\";
}
// encode for javascript use
if ($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)
{
global $OUTPUT;
$value = NULL;
if ($source==RCUBE_INPUT_GET && isset($_GET[$fname]))
$value = $_GET[$fname];
else if ($source==RCUBE_INPUT_POST && isset($_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];
}
if (empty($value))
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);
// convert to internal charset
if (is_object($OUTPUT))
return rcube_charset_convert($value, $OUTPUT->get_charset(), $charset);
else
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)
{
$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;
$out[$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, $str);
}
/**
* Remove single and double quotes from given string
*
* @param string Input value
* @return string Dequoted string
*/
function strip_quotes($str)
{
return preg_replace('/[\'"]/', '', $str);
}
/**
* Remove new lines characters from given string
*
* @param string Input value
* @return string Stripped string
*/
function strip_newlines($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
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)))
{
$zebra_class = $c % 2 ? 'even' : 'odd';
$table->add_row(array('id' => 'rcmrow' . $sql_arr[$id_col], 'class' => $zebra_class));
// format each col
foreach ($a_show_cols as $col)
$table->add($col, Q($sql_arr[$col]));
$c++;
}
}
else
{
foreach ($table_data as $row_data)
{
$zebra_class = $c % 2 ? 'even' : 'odd';
$table->add_row(array('id' => 'rcmrow' . $row_data[$id_col], 'class' => $zebra_class));
// format each col
foreach ($a_show_cols as $col)
$table->add($col, Q($row_data[$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')
{
$fname = '_'.$col;
$attrib['name'] = $fname;
if ($type=='checkbox')
{
$attrib['value'] = '1';
$input = new html_checkbox($attrib);
}
else if ($type=='textarea')
{
$attrib['cols'] = $attrib['size'];
$input = new html_textarea($attrib);
}
else
$input = new html_inputfield($attrib);
// use value from post
if (!empty($_POST[$fname]))
$value = get_input_value($fname, RCUBE_INPUT_POST,
$type == 'textarea' && strpos($attrib['class'], 'mce_editor')!==false ? true : false);
$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)
{
$last_pos = 0;
$replacements = new rcube_string_replacer;
// ignore the whole block if evil styles are detected
$stripped = preg_replace('/[^a-z\(:]/', '', rcmail_xss_entity_decode($source));
if (preg_match('/expression|behavior|url\(|import/', $stripped))
return '/* evil! */';
// cut out all contents between { and }
while (($pos = strpos($source, '{', $last_pos)) && ($pos2 = strpos($source, '}', $pos)))
{
$key = $replacements->add(substr($source, $pos+1, $pos2-($pos+1)));
$source = substr($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',
"/$container_id\s+body/i",
),
array(
'',
"\\1#$container_id \\2",
"$container_id div.rcmBody",
),
$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('#/\*.*\*/#Um', '', $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 $attrib;
}
/**
* Convert the given date to a human readable form
* This uses the date formatting properties from config
*
* @param mixed Date representation (string or timestamp)
* @param string Date format to use
* @return string Formatted date string
*/
function format_date($date, $format=NULL)
{
global $CONFIG;
$ts = NULL;
if (is_numeric($date))
$ts = $date;
else if (!empty($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(' ', $d);
}
}
if (empty($ts))
return '';
// get user's timezone
if ($CONFIG['timezone'] === 'auto')
$tz = isset($_SESSION['timezone']) ? $_SESSION['timezone'] : date('Z')/3600;
else {
$tz = $CONFIG['timezone'];
if ($CONFIG['dst_active'])
$tz++;
}
// 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
$now_date = getdate($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, $now_date['year']);
// define date format depending on current time
if ($CONFIG['prettydate'] && !$format && $timestamp > $today_limit && $timestamp < $now)
return sprintf('%s %s', rcube_label('today'), date($CONFIG['date_today'] ? $CONFIG['date_today'] : 'H:i', $timestamp));
else if ($CONFIG['prettydate'] && !$format && $timestamp > $week_limit && $timestamp < $now)
$format = $CONFIG['date_short'] ? $CONFIG['date_short'] : 'D H:i';
else if (!$format)
$format = $CONFIG['date_long'] ? $CONFIG['date_long'] : 'd.m.Y H:i';
// strftime() format
if (preg_match('/%[a-z]+/i', $format))
return strftime($format, $timestamp);
// 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);
}
return $out;
}
/**
* Compose a valid representaion of name and e-mail address
*
* @param string E-mail address
* @param string Person name
* @return string Formatted string
*/
function format_email_recipient($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, $email);
}
else
return $email;
}
/****** debugging functions ********/
/**
* Print or write debug messages
*
* @param mixed Debug message or data
*/
function console()
{
$args = func_get_args();
if (class_exists('rcmail', false)) {
$rcmail = rcmail::get_instance();
if (is_object($rcmail->plugins))
$rcmail->plugins->exec_hook('console', $args);
}
$msg = array();
foreach ($args as $arg)
$msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
if (!($GLOBALS['CONFIG']['debug_level'] & 4))
write_log('console', join(";\n", $msg));
else if ($GLOBALS['OUTPUT']->ajax_call)
print "/*\n " . join(";\n", $msg) . " \n*/\n";
else
{
print '<div style="background:#eee; border:1px solid #ccc; margin-bottom:3px; padding:6px"><pre>';
print join(";<br/>\n", $msg);
print "</pre></div>\n";
}
}
/**
* Append a line to a logfile in the logs directory.
* Date will be added automatically to the line.
*
* @param $name name of log file
* @param line Line to append
*/
function write_log($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;
}
$log_entry = sprintf("[%s]: %s\n", $date, $line);
if ($CONFIG['log_driver'] == 'syslog') {
$prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
syslog($prio, $log_entry);
return true;
}
else {
// log_driver == 'file' is assumed here
if (empty($CONFIG['log_dir']))
$CONFIG['log_dir'] = INSTALL_PATH.'logs';
// try to open specific log file for writing
if ($fp = @fopen($CONFIG['log_dir'].'/'.$name, 'a')) {
fwrite($fp, $log_entry);
fflush($fp);
fclose($fp);
return true;
}
}
return false;
}
/**
* @access private
*/
function rcube_timer()
{
return microtime(true);
}
/**
* @access private
*/
function rcube_print_time($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, $diff));
}
/**
* Return the mailboxlist in HTML
*
* @param array Named parameters
* @return string HTML code for the gui object
*/
function rcmail_mailbox_list($attrib)
{
global $RCMAIL;
static $a_mailboxes;
$attrib += array('maxlength' => 100, 'relanames' => 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';
// 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();
$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']), '0');
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', $RCMAIL->config->get('collapsed_folders'));
}
return $out;
}
/**
* Return the mailboxlist as html_select object
*
* @param array Named parameters
* @return object html_select HTML drop-down object
*/
function rcmail_mailbox_select($p = array())
{
global $RCMAIL;
$p += array('maxlength' => 100, 'relanames' => false);
$a_mailboxes = array();
foreach ($RCMAIL->imap->list_mailboxes() as $folder)
rcmail_build_folder_tree($a_mailboxes, $folder, $RCMAIL->imap->get_hierarchy_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']);
return $select;
}
/**
* Create a hierarchical array of the mailbox list
* @access private
*/
function rcmail_build_folder_tree(&$arrFolders, $folder, $delm='/', $path='')
{
$pos = strpos($folder, $delm);
if ($pos !== false) {
$subFolders = substr($folder, $pos+1);
$currentFolder = substr($folder, 0, $pos);
$virtual = !isset($arrFolders[$currentFolder]);
}
else {
$subFolders = false;
$currentFolder = $folder;
$virtual = false;
}
$path .= $currentFolder;
if (!isset($arrFolders[$currentFolder])) {
$arrFolders[$currentFolder] = array(
'id' => $path,
'name' => rcube_charset_convert($currentFolder, 'UTF7-IMAP'),
'virtual' => $virtual,
'folders' => array());
}
else
$arrFolders[$currentFolder]['virtual'] = $virtual;
if (!empty($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
*/
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');
$idx = 0;
$out = '';
foreach ($arrFolders as $key => $folder) {
$zebra_class = (($nestLevel+1)*$idx) % 2 == 0 ? 'even' : 'odd';
$title = null;
if (($folder_class = rcmail_folder_classname($folder['id'])) && !$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
$folder_id = asciiwords($folder['id'], true, '_');
$classes = array('mailbox');
// set special class for Sent, Drafts, Trash and Junk
if ($folder['id']==$CONFIG['sent_mbox'])
$classes[] = 'sent';
else if ($folder['id']==$CONFIG['drafts_mbox'])
$classes[] = 'drafts';
else if ($folder['id']==$CONFIG['trash_mbox'])
$classes[] = 'trash';
else if ($folder['id']==$CONFIG['junk_mbox'])
$classes[] = 'junk';
else if ($folder['id']=='INBOX')
$classes[] = 'inbox';
else
$classes[] = '_'.asciiwords($folder_class ? $folder_class : strtolower($folder['id']), true);
$classes[] = $zebra_class;
if ($folder['id'] == $mbox_name)
$classes[] = 'selected';
$collapsed = preg_match('/&'.rawurlencode($folder['id']).'&/', $RCMAIL->config->get('collapsed_folders'));
$unread = $msgcounts ? intval($msgcounts[$folder['id']]['UNSEEN']) : 0;
if ($folder['virtual'])
$classes[] = 'virtual';
else if ($unread)
$classes[] = 'unread';
$js_name = JQ($folder['id']);
$html_name = Q($foldername . ($unread ? " ($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),
'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";
$idx++;
}
return $out;
}
/**
* Return html for a flat list <select> for the mailbox tree
* @access private
*/
function rcmail_render_folder_tree_select(&$arrFolders, &$mbox_name, $maxlength, &$select, $realnames=false, $nestLevel=0)
{
$idx = 0;
$out = '';
foreach ($arrFolders as $key=>$folder)
{
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);
$idx++;
}
return $out;
}
/**
* Return internal name for the given folder if it matches the configured special folders
* @access private
*/
function rcmail_folder_classname($folder_id)
{
global $CONFIG;
// 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 $smbx;
}
if ($folder_id == 'INBOX')
return 'inbox';
}
/**
* 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($name, 'UTF7-IMAP');
}
/**
* Output HTML editor scripts
*
* @param string Editor mode
*/
function rcube_html_editor($mode='')
{
global $OUTPUT, $CONFIG;
$lang = $tinylang = strtolower(substr($_SESSION['language'], 0, 2));
if (!file_exists(INSTALL_PATH . 'program/js/tiny_mce/langs/'.$tinylang.'.js'))
$tinylang = 'en';
$OUTPUT->include_script('tiny_mce/tiny_mce.js');
$OUTPUT->include_script('editor.js');
$OUTPUT->add_script('rcmail_editor_init("$__skin_path", "'.JQ($tinylang).'", '.intval($CONFIG['enable_spellcheck']).', "'.$mode.'");');
}
/**
* 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 $matches[1] . '="' . make_absolute_url($matches[3], $this->base_url) . '"';
}
}
?>
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