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main.inc
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<?php
/*
+-----------------------------------------------------------------------+
| program/include/main.inc |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2005-2008, RoundCube Dev, - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Provide basic functions for the webmail package |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id$
*/
/**
* 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))
{
$db = &rcmail::get_instance()->db;
if ($db->db_provider=='pgsql')
{
$db->db_handle->setOption('disable_smart_seqname', true);
$db->db_handle->setOption('seqname_format', '%s');
}
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)
{
return rcmail::get_instance()->gettext($p);
}
/**
* Overwrite action variable
*
* @param string New action value
*/
function rcmail_overwrite_action($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()
{
$tmp = unslashify($CONFIG['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_message_cache_gc()
{
global $DB, $CONFIG;
// no cache lifetime configured
if (empty($CONFIG['message_cache_lifetime']))
return;
// get target timestamp
$ts = get_offset_time($CONFIG['message_cache_lifetime'], -1);
$DB->query("DELETE FROM ".get_table_name('messages')."
WHERE created < ".$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, $convert_warning = false;
$from = strtoupper($from);
$to = $to==NULL ? strtoupper(RCMAIL_CHARSET) : strtoupper($to);
$error = false; $conv = null;
if ($from==$to || $str=='' || empty($from))
return $str;
$aliases = array(
'US-ASCII' => 'ISO-8859-1',
'UNKNOWN-8BIT' => 'ISO-8859-15',
'X-UNKNOWN' => 'ISO-8859-15',
'X-USER-DEFINED' => 'ISO-8859-15',
'ISO-8859-8-I' => 'ISO-8859-8',
'KS_C_5601-1987' => 'EUC-KR',
);
// convert charset using iconv module
if (function_exists('iconv') && $from != 'UTF-7' && $to != 'UTF-7')
{
$aliases['GB2312'] = 'GB18030';
$_iconv = iconv(($aliases[$from] ? $aliases[$from] : $from), ($aliases[$to] ? $aliases[$to] : $to) . "//IGNORE", $str);
if ($_iconv !== false)
{
return $_iconv;
}
}
// settings for mbstring module (by Tadashi Jokagi)
if (is_null($mbstring_loaded)) {
if ($mbstring_loaded = extension_loaded("mbstring"))
mb_internal_encoding(RCMAIL_CHARSET);
}
// convert charset using mbstring module
if ($mbstring_loaded)
{
$aliases['UTF-7'] = 'UTF7-IMAP';
$aliases['WINDOWS-1257'] = 'ISO-8859-13';
// return if convert succeeded
if (($out = mb_convert_encoding($str, ($aliases[$to] ? $aliases[$to] : $to), ($aliases[$from] ? $aliases[$from] : $from))) != '')
return $out;
}
if (class_exists('utf8'))
$conv = new utf8();
// convert string to UTF-8
if ($from == 'UTF-7')
$str = utf7_to_utf8($str);
else if (($from == 'ISO-8859-1') && function_exists('utf8_encode'))
$str = utf8_encode($str);
else if ($from != 'UTF-8' && $conv)
{
$conv->loadCharset($from);
$str = $conv->strToUtf8($str);
}
else if ($from != 'UTF-8')
$error = true;
// encode string for output
if ($to == 'UTF-7')
return utf8_to_utf7($str);
else if ($to == 'ISO-8859-1' && function_exists('utf8_decode'))
return utf8_decode($str);
else if ($to != 'UTF-8' && $conv)
{
$conv->loadCharset($to);
return $conv->utf8ToStr($str);
}
else if ($to != 'UTF-8')
$error = true;
// report error
if ($error && !$convert_warning)
{
raise_error(array(
'code' => 500,
'type' => 'php',
'file' => __FILE__,
'message' => "Could not convert string charset. Make sure iconv is installed or lib/utf8.class is available"
), true, false);
$convert_warning = true;
}
// return UTF-8 string
return $str;
}
/**
* Replacing specials characters to a specific encoding type
*
* @param string Input string
* @param string Encoding type: text|html|xml|js|url
* @param string Replace mode for tags: show|replace|remove
* @param boolean Convert newlines
* @return The quoted string
*/
function rep_specialchars_output($str, $enctype='', $mode='', $newlines=TRUE)
{
global $OUTPUT;
static $html_encode_arr = false;
static $js_rep_table = false;
static $xml_rep_table = false;
$charset = $OUTPUT->get_charset();
$is_iso_8859_1 = false;
if ($charset == 'ISO-8859-1') {
$is_iso_8859_1 = true;
}
if (!$enctype)
$enctype = $OUTPUT->type;
// encode for plaintext
if ($enctype=='text')
return str_replace("\r\n", "\n", $mode=='remove' ? strip_tags($str) : $str);
// encode for HTML output
if ($enctype=='html')
{
if (!$html_encode_arr)
{
$html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS);
unset($html_encode_arr['?']);
}
$ltpos = strpos($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 &
$out = preg_replace('/&amp;([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', strtr($str, $encode_arr));
return $newlines ? nl2br($out) : $out;
}
if ($enctype=='url')
return rawurlencode($str);
// if the replace tables for XML and JS are not yet defined
if ($js_rep_table===false)
{
$js_rep_table = $xml_rep_table = array();
$xml_rep_table['&'] = '&amp;';
for ($c=160; $c<256; $c++) // can be increased to support more charsets
{
$xml_rep_table[Chr($c)] = "&#$c;";
if ($is_iso_8859_1)
$js_rep_table[Chr($c)] = sprintf("\\u%04x", $c);
}
$xml_rep_table['"'] = '&quot;';
}
// encode for XML
if ($enctype=='xml')
return strtr($str, $xml_rep_table);
// encode for javascript use
if ($enctype=='js')
{
if ($charset!='UTF-8')
$str = rcube_charset_convert($str, RCMAIL_CHARSET,$charset);
return preg_replace(array("/\r?\n/", "/\r/", '/<\\//'), array('\n', '\n', '<\\/'), addslashes(strtr($str, $js_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];
}
// strip slashes if magic_quotes enabled
if ((bool)get_magic_quotes_gpc())
$value = stripslashes($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 $value;
}
/**
* Remove all non-ascii and non-word chars
* except . and -
*/
function asciiwords($str, $css_id = false)
{
$allowed = 'a-z0-9\_\-' . (!$css_id ? '\.' : '');
return preg_replace("/[^$allowed]/i", '', $str);
}
/**
* Remove single and double quotes from given string
*
* @param string Input value
* @return string Dequoted string
*/
function strip_quotes($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' => "contact $zebra_class"));
// format each col
foreach ($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' => "contact $zebra_class"));
// format each col
foreach ($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);
$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, $base_url = '')
{
$a_css_values = array();
$last_pos = 0;
// ignore the whole block if evil styles are detected
$stripped = preg_replace('/[^a-z\(:]/', '', rcmail_xss_entitiy_decode($source));
if (preg_match('/expression|behavior|url\(|import/', $stripped))
return '';
// cut out all contents between { and }
while (($pos = strpos($source, '{', $last_pos)) && ($pos2 = strpos($source, '}', $pos)))
{
$key = sizeof($a_css_values);
$a_css_values[$key] = substr($source, $pos+1, $pos2-($pos+1));
$source = substr($source, 0, $pos+1) . "<<str_replacement[$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',
'/@import\s+(url\()?[\'"]?([^\)\'"]+)[\'"]?(\))?/ime',
'/<<str_replacement\[([0-9]+)\]>>/e',
"/$container_id\s+body/i"
),
array(
'',
"\\1#$container_id \\2",
"sprintf(\"@import url('./bin/modcss.php?u=%s&c=%s')\", urlencode(make_absolute_url('\\2','$base_url')), urlencode($container_id))",
"\$a_css_values[\\1]",
"$container_id div.rcmBody"
),
$source);
return $styles;
}
/**
* Decode escaped entities used by known XSS exploits.
* See http://downloads.securityfocus.com/vulnerabilities/exploits/26800.eml for examples
*
* @param string CSS content to decode
* @return string Decoded string
*/
function rcmail_xss_entitiy_decode($content)
{
$out = html_entity_decode(html_entity_decode($content));
$out = preg_replace('/\\\([0-9a-f]{4})/ie', "chr(hexdec('\\1'))", $out);
$out = preg_replace('#/\*.*\*/#Um', '', $out);
return $out;
}
/**
* Compose a valid attribute string for HTML tags
*
* @param array Named tag attributes
* @param array List of allowed attributes
* @return string HTML formatted attribute string
*/
function create_attrib_string($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('"', '&quot;', $attrib[$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])] = $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))
{
while (($ts = @strtotime($date))===false)
{
// if we have a date in non-rfc format
// remove token from the end and try again
$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';
// 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()
{
$msg = array();
foreach (func_get_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 $CONFIG;
if (!is_string($line))
$line = var_export($line, true);
$log_entry = sprintf("[%s]: %s\n",
date("d-M-Y H:i:s O", mktime()),
$line);
if ($CONFIG['log_driver'] == 'syslog') {
if ($name == 'errors')
$prio = LOG_ERR;
else
$prio = LOG_INFO;
syslog($prio, $log_entry);
} else {
// log_driver == 'file' is assumed here
if (empty($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, $log_entry);
fclose($fp);
}
}
}
/**
* @access private
*/
function rcube_timer()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
/**
* @access private
*/
function rcube_print_time($timer, $label='Timer')
{
static $print_count = 0;
$print_count++;
$now = rcube_timer();
$diff = $now-$timer;
if (empty($label))
$label = 'Timer '.$print_count;
console(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, $delimiter);
}
if ($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($a_mailboxes, $mbox_name, $attrib['maxlength'], $select, $attrib['realnames']);
$out = $select->show();
}
else {
$js_mailboxlist = array();
$out = html::tag('ul', $attrib, rcmail_render_folder_tree_html($a_mailboxes, $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, 'UTF-7'),
'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 &lt;ul&gt; 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)
), '&nbsp;') : ''));
$jslist[$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('&nbsp;', $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;
$cname = null;
$folder_lc = strtolower($folder_id);
// for these mailboxes we have localized labels and css classes
foreach (array('inbox', 'sent', 'drafts', 'trash', 'junk') as $smbx)
{
if ($folder_lc == $smbx || $folder_id == $CONFIG[$smbx.'_mbox'])
$cname = $smbx;
}
return $cname;
}
/**
* Try to localize the given IMAP folder name.
* UTF-7 decode it in case no localized text was found
*
* @param string Folder name
* @return string Localized folder name in UTF-8 encoding
*/
function rcmail_localize_foldername($name)
{
if ($folder_class = rcmail_folder_classname($name))
return rcube_label($folder_class);
else
return rcube_charset_convert($name, 'UTF-7');
}
?>

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