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rcmail_output_html.php
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rcmail_output_html.php
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<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcmail_output_html.php |
| |
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2006-2012, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Class to handle HTML page output using a skin template. |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
*/
/**
* Class to create HTML page output using a skin template
*
* @package Core
* @subpackage View
*/
class rcmail_output_html extends rcmail_output
{
public $type = 'html';
protected $message = null;
protected $js_env = array();
protected $js_labels = array();
protected $js_commands = array();
protected $skin_paths = array();
protected $template_name;
protected $scripts_path = '';
protected $script_files = array();
protected $css_files = array();
protected $scripts = array();
protected $default_template = "<html>\n<head><title></title></head>\n<body></body>\n</html>";
protected $header = '';
protected $footer = '';
protected $body = '';
protected $base_path = '';
// deprecated names of templates used before 0.5
protected $deprecated_templates = array(
'contact' => 'showcontact',
'contactadd' => 'addcontact',
'contactedit' => 'editcontact',
'identityedit' => 'editidentity',
'messageprint' => 'printmessage',
);
/**
* Constructor
*
* @todo Replace $this->config with the real rcube_config object
*/
public function __construct($task = null, $framed = false)
{
parent::__construct();
//$this->framed = $framed;
$this->set_env('task', $task);
$this->set_env('x_frame_options', $this->config->get('x_frame_options', 'sameorigin'));
$this->set_env('standard_windows', (bool) $this->config->get('standard_windows'));
// add cookie info
$this->set_env('cookie_domain', ini_get('session.cookie_domain'));
$this->set_env('cookie_path', ini_get('session.cookie_path'));
$this->set_env('cookie_secure', filter_var(ini_get('session.cookie_secure'), FILTER_VALIDATE_BOOLEAN));
// load the correct skin (in case user-defined)
$skin = $this->config->get('skin');
$this->set_skin($skin);
$this->set_env('skin', $skin);
if (!empty($_REQUEST['_extwin']))
$this->set_env('extwin', 1);
if ($this->framed || !empty($_REQUEST['_framed']))
$this->set_env('framed', 1);
// add common javascripts
$this->add_script('var '.self::JS_OBJECT_NAME.' = new rcube_webmail();', 'head_top');
// don't wait for page onload. Call init at the bottom of the page (delayed)
$this->add_script(self::JS_OBJECT_NAME.'.init();', 'docready');
$this->scripts_path = 'program/js/';
$this->include_script('jquery.min.js');
$this->include_script('common.js');
$this->include_script('app.js');
// register common UI objects
$this->add_handlers(array(
'loginform' => array($this, 'login_form'),
'preloader' => array($this, 'preloader'),
'username' => array($this, 'current_username'),
'message' => array($this, 'message_container'),
'charsetselector' => array($this, 'charset_selector'),
'aboutcontent' => array($this, 'about_content'),
));
}
/**
* Set environment variable
*
* @param string Property name
* @param mixed Property value
* @param boolean True if this property should be added to client environment
*/
public function set_env($name, $value, $addtojs = true)
{
$this->env[$name] = $value;
if ($addtojs || isset($this->js_env[$name])) {
$this->js_env[$name] = $value;
}
}
/**
* Getter for the current page title
*
* @return string The page title
*/
protected function get_pagetitle()
{
if (!empty($this->pagetitle)) {
$title = $this->pagetitle;
}
else if ($this->env['task'] == 'login') {
$title = $this->app->gettext(array(
'name' => 'welcome',
'vars' => array('product' => $this->config->get('product_name')
)));
}
else {
$title = ucfirst($this->env['task']);
}
return $title;
}
/**
* Set skin
*/
public function set_skin($skin)
{
$valid = false;
$path = RCUBE_INSTALL_PATH . 'skins/';
if (!empty($skin) && is_dir($path . $skin) && is_readable($path . $skin)) {
$skin_path = 'skins/' . $skin;
$valid = true;
}
else {
$skin_path = $this->config->get('skin_path');
if (!$skin_path) {
$skin_path = 'skins/' . rcube_config::DEFAULT_SKIN;
}
$valid = !$skin;
}
$this->config->set('skin_path', $skin_path);
$this->base_path = $skin_path;
// register skin path(s)
$this->skin_paths = array();
$this->load_skin($skin_path);
return $valid;
}
/**
* Helper method to recursively read skin meta files and register search paths
*/
private function load_skin($skin_path)
{
$this->skin_paths[] = $skin_path;
// read meta file and check for dependecies
$meta = @file_get_contents(RCUBE_INSTALL_PATH . $skin_path . '/meta.json');
$meta = @json_decode($meta, true);
if ($meta['extends']) {
$path = RCUBE_INSTALL_PATH . 'skins/';
if (is_dir($path . $meta['extends']) && is_readable($path . $meta['extends'])) {
$this->load_skin('skins/' . $meta['extends']);
}
}
}
/**
* Check if a specific template exists
*
* @param string Template name
* @return boolean True if template exists
*/
public function template_exists($name)
{
foreach ($this->skin_paths as $skin_path) {
$filename = RCUBE_INSTALL_PATH . $skin_path . '/templates/' . $name . '.html';
if ((is_file($filename) && is_readable($filename))
|| ($this->deprecated_templates[$name] && $this->template_exists($this->deprecated_templates[$name]))
) {
return true;
}
}
return false;
}
/**
* Find the given file in the current skin path stack
*
* @param string File name/path to resolve (starting with /)
* @param string Reference to the base path of the matching skin
* @param string Additional path to search in
* @return mixed Relative path to the requested file or False if not found
*/
public function get_skin_file($file, &$skin_path = null, $add_path = null)
{
$skin_paths = $this->skin_paths;
if ($add_path)
array_unshift($skin_paths, $add_path);
foreach ($skin_paths as $skin_path) {
$path = realpath($skin_path . $file);
if (is_file($path)) {
return $skin_path . $file;
}
}
return false;
}
/**
* Register a GUI object to the client script
*
* @param string Object name
* @param string Object ID
* @return void
*/
public function add_gui_object($obj, $id)
{
$this->add_script(self::JS_OBJECT_NAME.".gui_object('$obj', '$id');");
}
/**
* Call a client method
*
* @param string Method to call
* @param ... Additional arguments
*/
public function command()
{
$cmd = func_get_args();
if (strpos($cmd[0], 'plugin.') !== false)
$this->js_commands[] = array('triggerEvent', $cmd[0], $cmd[1]);
else
$this->js_commands[] = $cmd;
}
/**
* Add a localized label to the client environment
*/
public function add_label()
{
$args = func_get_args();
if (count($args) == 1 && is_array($args[0]))
$args = $args[0];
foreach ($args as $name) {
$this->js_labels[$name] = $this->app->gettext($name);
}
}
/**
* Invoke display_message command
*
* @param string $message Message to display
* @param string $type Message type [notice|confirm|error]
* @param array $vars Key-value pairs to be replaced in localized text
* @param boolean $override Override last set message
* @param int $timeout Message display time in seconds
* @uses self::command()
*/
public function show_message($message, $type='notice', $vars=null, $override=true, $timeout=0)
{
if ($override || !$this->message) {
if ($this->app->text_exists($message)) {
if (!empty($vars))
$vars = array_map('Q', $vars);
$msgtext = $this->app->gettext(array('name' => $message, 'vars' => $vars));
}
else
$msgtext = $message;
$this->message = $message;
$this->command('display_message', $msgtext, $type, $timeout * 1000);
}
}
/**
* Delete all stored env variables and commands
*
* @param bool $all Reset all env variables (including internal)
*/
public function reset($all = false)
{
$env = $all ? null : array_intersect_key($this->env, array('extwin'=>1, 'framed'=>1));
parent::reset();
// let some env variables survive
$this->env = $this->js_env = $env;
$this->js_labels = array();
$this->js_commands = array();
$this->script_files = array();
$this->scripts = array();
$this->header = '';
$this->footer = '';
$this->body = '';
}
/**
* Redirect to a certain url
*
* @param mixed $p Either a string with the action or url parameters as key-value pairs
* @param int $delay Delay in seconds
*/
public function redirect($p = array(), $delay = 1)
{
if ($this->env['extwin'])
$p['extwin'] = 1;
$location = $this->app->url($p);
header('Location: ' . $location);
exit;
}
/**
* Send the request output to the client.
* This will either parse a skin tempalte or send an AJAX response
*
* @param string Template name
* @param boolean True if script should terminate (default)
*/
public function send($templ = null, $exit = true)
{
if ($templ != 'iframe') {
// prevent from endless loops
if ($exit != 'recur' && $this->app->plugins->is_processing('render_page')) {
rcube::raise_error(array('code' => 505, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => 'Recursion alert: ignoring output->send()'), true, false);
return;
}
$this->parse($templ, false);
}
else {
$this->framed = true;
$this->write();
}
// set output asap
ob_flush();
flush();
if ($exit) {
exit;
}
}
/**
* Process template and write to stdOut
*
* @param string $template HTML template content
*/
public function write($template = '')
{
// unlock interface after iframe load
$unlock = preg_replace('/[^a-z0-9]/i', '', $_REQUEST['_unlock']);
if ($this->framed) {
array_unshift($this->js_commands, array('iframe_loaded', $unlock));
}
else if ($unlock) {
array_unshift($this->js_commands, array('hide_message', $unlock));
}
if (!empty($this->script_files))
$this->set_env('request_token', $this->app->get_request_token());
// write all env variables to client
if ($commands = $this->get_js_commands()) {
$js = $this->framed ? "if (window.parent) {\n" : '';
$js .= $commands . ($this->framed ? ' }' : '');
$this->add_script($js, 'head_top');
}
// send clickjacking protection headers
$iframe = $this->framed || !empty($_REQUEST['_framed']);
if (!headers_sent() && ($xframe = $this->app->config->get('x_frame_options', 'sameorigin')))
header('X-Frame-Options: ' . ($iframe && $xframe == 'deny' ? 'sameorigin' : $xframe));
// call super method
$this->_write($template, $this->config->get('skin_path'));
}
/**
* Parse a specific skin template and deliver to stdout (or return)
*
* @param string Template name
* @param boolean Exit script
* @param boolean Don't write to stdout, return parsed content instead
*
* @link http://php.net/manual/en/function.exit.php
*/
function parse($name = 'main', $exit = true, $write = true)
{
$plugin = false;
$realname = $name;
$this->template_name = $realname;
$temp = explode('.', $name, 2);
if (count($temp) > 1) {
$plugin = $temp[0];
$name = $temp[1];
$skin_dir = $plugin . '/skins/' . $this->config->get('skin');
// apply skin search escalation list to plugin directory
$plugin_skin_paths = array();
foreach ($this->skin_paths as $skin_path) {
$plugin_skin_paths[] = $this->app->plugins->url . $plugin . '/' . $skin_path;
}
// add fallback to default skin
if (is_dir($this->app->plugins->dir . $plugin . '/skins/default')) {
$skin_dir = $plugin . '/skins/default';
$plugin_skin_paths[] = $this->app->plugins->url . $skin_dir;
}
// add plugin skin paths to search list
$this->skin_paths = array_merge($plugin_skin_paths, $this->skin_paths);
}
// find skin template
$path = false;
foreach ($this->skin_paths as $skin_path) {
$path = "$skin_path/templates/$name.html";
// fallback to deprecated template names
if (!is_readable($path) && $this->deprecated_templates[$realname]) {
$path = "$skin_path/templates/" . $this->deprecated_templates[$realname] . ".html";
if (is_readable($path)) {
rcube::raise_error(array(
'code' => 502, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Using deprecated template '" . $this->deprecated_templates[$realname]
. "' in $skin_path/templates. Please rename to '$realname'"),
true, false);
}
}
if (is_readable($path)) {
$this->config->set('skin_path', $skin_path);
$this->base_path = preg_replace('!plugins/\w+/!', '', $skin_path); // set base_path to core skin directory (not plugin's skin)
$skin_dir = preg_replace('!^plugins/!', '', $skin_path);
break;
}
else {
$path = false;
}
}
// read template file
if (!$path || ($templ = @file_get_contents($path)) === false) {
rcube::raise_error(array(
'code' => 501,
'type' => 'php',
'line' => __LINE__,
'file' => __FILE__,
'message' => 'Error loading template for '.$realname
), true, $write);
return false;
}
// replace all path references to plugins/... with the configured plugins dir
// and /this/ to the current plugin skin directory
if ($plugin) {
$templ = preg_replace(array('/\bplugins\//', '/(["\']?)\/this\//'), array($this->app->plugins->url, '\\1'.$this->app->plugins->url.$skin_dir.'/'), $templ);
}
// parse for specialtags
$output = $this->parse_conditions($templ);
$output = $this->parse_xml($output);
// trigger generic hook where plugins can put additional content to the page
$hook = $this->app->plugins->exec_hook("render_page", array('template' => $realname, 'content' => $output));
// save some memory
$output = $hook['content'];
unset($hook['content']);
// make sure all <form> tags have a valid request token
$output = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $output);
$this->footer = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $this->footer);
if ($write) {
// add debug console
if ($realname != 'error' && ($this->config->get('debug_level') & 8)) {
$this->add_footer('<div id="console" style="position:absolute;top:5px;left:5px;width:405px;padding:2px;background:white;z-index:9000;display:none">
<a href="#toggle" onclick="con=$(\'#dbgconsole\');con[con.is(\':visible\')?\'hide\':\'show\']();return false">console</a>
<textarea name="console" id="dbgconsole" rows="20" cols="40" style="display:none;width:400px;border:none;font-size:10px" spellcheck="false"></textarea></div>'
);
$this->add_script(
"if (!window.console || !window.console.log) {\n".
" window.console = new rcube_console();\n".
" $('#console').show();\n".
"}", 'foot');
}
$this->write(trim($output));
}
else {
return $output;
}
if ($exit) {
exit;
}
}
/**
* Return executable javascript code for all registered commands
*
* @return string $out
*/
protected function get_js_commands()
{
$out = '';
if (!$this->framed && !empty($this->js_env)) {
$out .= self::JS_OBJECT_NAME . '.set_env('.self::json_serialize($this->js_env).");\n";
}
if (!empty($this->js_labels)) {
$this->command('add_label', $this->js_labels);
}
foreach ($this->js_commands as $i => $args) {
$method = array_shift($args);
foreach ($args as $i => $arg) {
$args[$i] = self::json_serialize($arg);
}
$parent = $this->framed || preg_match('/^parent\./', $method);
$out .= sprintf(
"%s.%s(%s);\n",
($parent ? 'if(window.parent && parent.'.self::JS_OBJECT_NAME.') parent.' : '') . self::JS_OBJECT_NAME,
preg_replace('/^parent\./', '', $method),
implode(',', $args)
);
}
return $out;
}
/**
* Make URLs starting with a slash point to skin directory
*
* @param string Input string
* @param boolean True if URL should be resolved using the current skin path stack
* @return string
*/
public function abs_url($str, $search_path = false)
{
if ($str[0] == '/') {
if ($search_path && ($file_url = $this->get_skin_file($str, $skin_path)))
return $file_url;
return $this->base_path . $str;
}
else
return $str;
}
/**
* Show error page and terminate script execution
*
* @param int $code Error code
* @param string $message Error message
*/
public function raise_error($code, $message)
{
global $__page_content, $ERROR_CODE, $ERROR_MESSAGE;
$ERROR_CODE = $code;
$ERROR_MESSAGE = $message;
include RCUBE_INSTALL_PATH . 'program/steps/utils/error.inc';
exit;
}
/***** Template parsing methods *****/
/**
* Replace all strings ($varname)
* with the content of the according global variable.
*/
protected function parse_with_globals($input)
{
$GLOBALS['__version'] = html::quote(RCMAIL_VERSION);
$GLOBALS['__comm_path'] = html::quote($this->app->comm_path);
$GLOBALS['__skin_path'] = html::quote($this->base_path);
return preg_replace_callback('/\$(__[a-z0-9_\-]+)/',
array($this, 'globals_callback'), $input);
}
/**
* Callback funtion for preg_replace_callback() in parse_with_globals()
*/
protected function globals_callback($matches)
{
return $GLOBALS[$matches[1]];
}
/**
* Correct absolute paths in images and other tags
* add timestamp to .js and .css filename
*/
protected function fix_paths($output)
{
return preg_replace_callback(
'!(src|href|background)=(["\']?)([a-z0-9/_.-]+)(["\'\s>])!i',
array($this, 'file_callback'), $output);
}
/**
* Callback function for preg_replace_callback in write()
*
* @return string Parsed string
*/
protected function file_callback($matches)
{
$file = $matches[3];
$file = preg_replace('!^/this/!', '/', $file);
// correct absolute paths
if ($file[0] == '/') {
$file = $this->base_path . $file;
}
// add file modification timestamp
if (preg_match('/\.(js|css)$/', $file)) {
if ($fs = @filemtime($file)) {
$file .= '?s=' . $fs;
}
}
return $matches[1] . '=' . $matches[2] . $file . $matches[4];
}
/**
* Public wrapper to dipp into template parsing.
*
* @param string $input
* @return string
* @uses rcmail_output_html::parse_xml()
* @since 0.1-rc1
*/
public function just_parse($input)
{
$input = $this->parse_conditions($input);
$input = $this->parse_xml($input);
return $input;
}
/**
* Parse for conditional tags
*
* @param string $input
* @return string
*/
protected function parse_conditions($input)
{
$matches = preg_split('/<roundcube:(if|elseif|else|endif)\s+([^>]+)>\n?/is', $input, 2, PREG_SPLIT_DELIM_CAPTURE);
if ($matches && count($matches) == 4) {
if (preg_match('/^(else|endif)$/i', $matches[1])) {
return $matches[0] . $this->parse_conditions($matches[3]);
}
$attrib = html::parse_attrib_string($matches[2]);
if (isset($attrib['condition'])) {
$condmet = $this->check_condition($attrib['condition']);
$submatches = preg_split('/<roundcube:(elseif|else|endif)\s+([^>]+)>\n?/is', $matches[3], 2, PREG_SPLIT_DELIM_CAPTURE);
if ($condmet) {
$result = $submatches[0];
$result.= ($submatches[1] != 'endif' ? preg_replace('/.*<roundcube:endif\s+[^>]+>\n?/Uis', '', $submatches[3], 1) : $submatches[3]);
}
else {
$result = "<roundcube:$submatches[1] $submatches[2]>" . $submatches[3];
}
return $matches[0] . $this->parse_conditions($result);
}
rcube::raise_error(array(
'code' => 500,
'type' => 'php',
'line' => __LINE__,
'file' => __FILE__,
'message' => "Unable to parse conditional tag " . $matches[2]
), true, false);
}
return $input;
}
/**
* Determines if a given condition is met
*
* @todo Extend this to allow real conditions, not just "set"
* @param string Condition statement
* @return boolean True if condition is met, False if not
*/
protected function check_condition($condition)
{
return $this->eval_expression($condition);
}
/**
* Inserts hidden field with CSRF-prevention-token into POST forms
*/
protected function alter_form_tag($matches)
{
$out = $matches[0];
$attrib = html::parse_attrib_string($matches[1]);
if (strtolower($attrib['method']) == 'post') {
$hidden = new html_hiddenfield(array('name' => '_token', 'value' => $this->app->get_request_token()));
$out .= "\n" . $hidden->show();
}
return $out;
}
/**
* Parse & evaluate a given expression and return its result.
*
* @param string Expression statement
*
* @return mixed Expression result
*/
protected function eval_expression ($expression)
{
$expression = preg_replace(
array(
'/session:([a-z0-9_]+)/i',
'/config:([a-z0-9_]+)(:([a-z0-9_]+))?/i',
'/env:([a-z0-9_]+)/i',
'/request:([a-z0-9_]+)/i',
'/cookie:([a-z0-9_]+)/i',
'/browser:([a-z0-9_]+)/i',
'/template:name/i',
),
array(
"\$_SESSION['\\1']",
"\$app->config->get('\\1',rcube_utils::get_boolean('\\3'))",
"\$env['\\1']",
"rcube_utils::get_input_value('\\1', rcube_utils::INPUT_GPC)",
"\$_COOKIE['\\1']",
"\$browser->{'\\1'}",
$this->template_name,
),
$expression
);
$fn = create_function('$app,$browser,$env', "return ($expression);");
if (!$fn) {
rcube::raise_error(array(
'code' => 505,
'type' => 'php',
'file' => __FILE__,
'line' => __LINE__,
'message' => "Expression parse error on: ($expression)"), true, false);
return null;
}
return $fn($this->app, $this->browser, $this->env);
}
/**
* Search for special tags in input and replace them
* with the appropriate content
*
* @param string Input string to parse
* @return string Altered input string
* @todo Use DOM-parser to traverse template HTML
* @todo Maybe a cache.
*/
protected function parse_xml($input)
{
return preg_replace_callback('/<roundcube:([-_a-z]+)\s+((?:[^>]|\\\\>)+)(?<!\\\\)>/Ui', array($this, 'xml_command'), $input);
}
/**
* Callback function for parsing an xml command tag
* and turn it into real html content
*
* @param array Matches array of preg_replace_callback
* @return string Tag/Object content
*/
protected function xml_command($matches)
{
$command = strtolower($matches[1]);
$attrib = html::parse_attrib_string($matches[2]);
// empty output if required condition is not met
if (!empty($attrib['condition']) && !$this->check_condition($attrib['condition'])) {
return '';
}
// execute command
switch ($command) {
// return a button
case 'button':
if ($attrib['name'] || $attrib['command']) {
return $this->button($attrib);
}
break;
// frame
case 'frame':
return $this->frame($attrib);
break;
// show a label
case 'label':
if ($attrib['expression'])
$attrib['name'] = $this->eval_expression($attrib['expression']);
if ($attrib['name'] || $attrib['command']) {
// @FIXME: 'noshow' is useless, remove?
if ($attrib['noshow']) {
return '';
}
$vars = $attrib + array('product' => $this->config->get('product_name'));
unset($vars['name'], $vars['command']);
$label = $this->app->gettext($attrib + array('vars' => $vars));
$quoting = !empty($attrib['quoting']) ? strtolower($attrib['quoting']) : (rcube_utils::get_boolean((string)$attrib['html']) ? 'no' : '');
switch ($quoting) {
case 'no':
case 'raw':
break;
case 'javascript':
case 'js':
$label = rcube::JQ($label);
break;
default:
$label = html::quote($label);
break;
}
return $label;
}
break;
// include a file
case 'include':
$old_base_path = $this->base_path;
if (!empty($attrib['skin_path'])) $attrib['skinpath'] = $attrib['skin_path'];
if ($path = $this->get_skin_file($attrib['file'], $skin_path, $attrib['skinpath'])) {
$this->base_path = preg_replace('!plugins/\w+/!', '', $skin_path); // set base_path to core skin directory (not plugin's skin)
$path = realpath($path);
}
if (is_readable($path)) {
if ($this->config->get('skin_include_php')) {
$incl = $this->include_php($path);
}
else {
$incl = file_get_contents($path);
}
$incl = $this->parse_conditions($incl);
$incl = $this->parse_xml($incl);
$incl = $this->fix_paths($incl);
$this->base_path = $old_base_path;
return $incl;
}
break;
case 'plugin.include':
$hook = $this->app->plugins->exec_hook("template_plugin_include", $attrib);
return $hook['content'];
// define a container block
case 'container':
if ($attrib['name'] && $attrib['id']) {
$this->command('gui_container', $attrib['name'], $attrib['id']);
// let plugins insert some content here
$hook = $this->app->plugins->exec_hook("template_container", $attrib);
return $hook['content'];
}
break;
// return code for a specific application object
case 'object':
$object = strtolower($attrib['name']);
$content = '';
// we are calling a class/method
if (($handler = $this->object_handlers[$object]) && is_array($handler)) {
if ((is_object($handler[0]) && method_exists($handler[0], $handler[1])) ||
(is_string($handler[0]) && class_exists($handler[0])))
$content = call_user_func($handler, $attrib);
}
// execute object handler function
else if (function_exists($handler)) {
$content = call_user_func($handler, $attrib);
}
else if ($object == 'doctype') {
$content = html::doctype($attrib['value']);
}
else if ($object == 'logo') {
$attrib += array('alt' => $this->xml_command(array('', 'object', 'name="productname"')));
if ($logo = $this->config->get('skin_logo')) {
if (is_array($logo)) {
if ($template_logo = $logo[$this->template_name]) {
$attrib['src'] = $template_logo;
}
elseif ($template_logo = $logo['*']) {
$attrib['src'] = $template_logo;
}
}
else {
$attrib['src'] = $logo;
}
}
$content = html::img($attrib);
}
else if ($object == 'productname') {
$name = $this->config->get('product_name', 'Roundcube Webmail');
$content = html::quote($name);
}
else if ($object == 'version') {
$ver = (string)RCMAIL_VERSION;
if (is_file(RCUBE_INSTALL_PATH . '.svn/entries')) {
if (preg_match('/Revision:\s(\d+)/', @shell_exec('svn info'), $regs))
$ver .= ' [SVN r'.$regs[1].']';
}
else if (is_file(RCUBE_INSTALL_PATH . '.git/index')) {
if (preg_match('/Date:\s+([^\n]+)/', @shell_exec('git log -1'), $regs)) {
if ($date = date('Ymd.Hi', strtotime($regs[1]))) {
$ver .= ' [GIT '.$date.']';
}
}
}
$content = html::quote($ver);
}
else if ($object == 'steptitle') {
$content = html::quote($this->get_pagetitle());
}
else if ($object == 'pagetitle') {
if ($this->config->get('devel_mode') && !empty($_SESSION['username']))
$title = $_SESSION['username'].' :: ';
else if ($prod_name = $this->config->get('product_name'))
$title = $prod_name . ' :: ';
else
$title = '';
$title .= $this->get_pagetitle();
$content = html::quote($title);
}
// exec plugin hooks for this template object
$hook = $this->app->plugins->exec_hook("template_object_$object", $attrib + array('content' => $content));
return $hook['content'];
// return code for a specified eval expression
case 'exp':
return html::quote($this->eval_expression($attrib['expression']));
// return variable
case 'var':
$var = explode(':', $attrib['name']);
$name = $var[1];
$value = '';
switch ($var[0]) {
case 'env':
$value = $this->env[$name];
break;
case 'config':
$value = $this->config->get($name);
if (is_array($value) && $value[$_SESSION['storage_host']]) {
$value = $value[$_SESSION['storage_host']];
}
break;
case 'request':
$value = rcube_utils::get_input_value($name, rcube_utils::INPUT_GPC);
break;
case 'session':
$value = $_SESSION[$name];
break;
case 'cookie':
$value = htmlspecialchars($_COOKIE[$name]);
break;
case 'browser':
$value = $this->browser->{$name};
break;
}
if (is_array($value)) {
$value = implode(', ', $value);
}
return html::quote($value);
case 'form':
return $this->form_tag($attrib);
}
return '';
}
/**
* Include a specific file and return it's contents
*
* @param string File path
* @return string Contents of the processed file
*/
protected function include_php($file)
{
ob_start();
include $file;
$out = ob_get_contents();
ob_end_clean();
return $out;
}
/**
* Create and register a button
*
* @param array Named button attributes
* @return string HTML button
* @todo Remove all inline JS calls and use jQuery instead.
* @todo Remove all sprintf()'s - they are pretty, but also slow.
*/
public function button($attrib)
{
static $s_button_count = 100;
// these commands can be called directly via url
$a_static_commands = array('compose', 'list', 'preferences', 'folders', 'identities');
if (!($attrib['command'] || $attrib['name'] || $attrib['href'])) {
return '';
}
// try to find out the button type
if ($attrib['type']) {
$attrib['type'] = strtolower($attrib['type']);
}
else {
$attrib['type'] = ($attrib['image'] || $attrib['imagepas'] || $attrib['imageact']) ? 'image' : 'link';
}
$command = $attrib['command'];
if ($attrib['task'])
$command = $attrib['task'] . '.' . $command;
if (!$attrib['image']) {
$attrib['image'] = $attrib['imagepas'] ? $attrib['imagepas'] : $attrib['imageact'];
}
if (!$attrib['id']) {
$attrib['id'] = sprintf('rcmbtn%d', $s_button_count++);
}
// get localized text for labels and titles
if ($attrib['title']) {
$attrib['title'] = html::quote($this->app->gettext($attrib['title'], $attrib['domain']));
}
if ($attrib['label']) {
$attrib['label'] = html::quote($this->app->gettext($attrib['label'], $attrib['domain']));
}
if ($attrib['alt']) {
$attrib['alt'] = html::quote($this->app->gettext($attrib['alt'], $attrib['domain']));
}
// set title to alt attribute for IE browsers
if ($this->browser->ie && !$attrib['title'] && $attrib['alt']) {
$attrib['title'] = $attrib['alt'];
}
// add empty alt attribute for XHTML compatibility
if (!isset($attrib['alt'])) {
$attrib['alt'] = '';
}
// register button in the system
if ($attrib['command']) {
$this->add_script(sprintf(
"%s.register_button('%s', '%s', '%s', '%s', '%s', '%s');",
self::JS_OBJECT_NAME,
$command,
$attrib['id'],
$attrib['type'],
$attrib['imageact'] ? $this->abs_url($attrib['imageact']) : $attrib['classact'],
$attrib['imagesel'] ? $this->abs_url($attrib['imagesel']) : $attrib['classsel'],
$attrib['imageover'] ? $this->abs_url($attrib['imageover']) : ''
));
// make valid href to specific buttons
if (in_array($attrib['command'], rcmail::$main_tasks)) {
$attrib['href'] = $this->app->url(array('task' => $attrib['command']));
$attrib['onclick'] = sprintf("return %s.command('switch-task','%s',this,event)", self::JS_OBJECT_NAME, $attrib['command']);
}
else if ($attrib['task'] && in_array($attrib['task'], rcmail::$main_tasks)) {
$attrib['href'] = $this->app->url(array('action' => $attrib['command'], 'task' => $attrib['task']));
}
else if (in_array($attrib['command'], $a_static_commands)) {
$attrib['href'] = $this->app->url(array('action' => $attrib['command']));
}
else if (($attrib['command'] == 'permaurl' || $attrib['command'] == 'extwin') && !empty($this->env['permaurl'])) {
$attrib['href'] = $this->env['permaurl'];
}
}
// overwrite attributes
if (!$attrib['href']) {
$attrib['href'] = '#';
}
if ($attrib['task']) {
if ($attrib['classact'])
$attrib['class'] = $attrib['classact'];
}
else if ($command && !$attrib['onclick']) {
$attrib['onclick'] = sprintf(
"return %s.command('%s','%s',this,event)",
self::JS_OBJECT_NAME,
$command,
$attrib['prop']
);
}
$out = '';
// generate image tag
if ($attrib['type'] == 'image') {
$attrib_str = html::attrib_string(
$attrib,
array(
'style', 'class', 'id', 'width', 'height', 'border', 'hspace',
'vspace', 'align', 'alt', 'tabindex', 'title'
)
);
$btn_content = sprintf('<img src="%s"%s />', $this->abs_url($attrib['image']), $attrib_str);
if ($attrib['label']) {
$btn_content .= ' '.$attrib['label'];
}
$link_attrib = array('href', 'onclick', 'onmouseover', 'onmouseout', 'onmousedown', 'onmouseup', 'target');
}
else if ($attrib['type'] == 'link') {
$btn_content = isset($attrib['content']) ? $attrib['content'] : ($attrib['label'] ? $attrib['label'] : $attrib['command']);
$link_attrib = array_merge(html::$common_attrib, array('href', 'onclick', 'tabindex', 'target'));
if ($attrib['innerclass'])
$btn_content = html::span($attrib['innerclass'], $btn_content);
}
else if ($attrib['type'] == 'input') {
$attrib['type'] = 'button';
if ($attrib['label']) {
$attrib['value'] = $attrib['label'];
}
if ($attrib['command']) {
$attrib['disabled'] = 'disabled';
}
$out = html::tag('input', $attrib, null, array('type', 'value', 'onclick', 'id', 'class', 'style', 'tabindex', 'disabled'));
}
// generate html code for button
if ($btn_content) {
$attrib_str = html::attrib_string($attrib, $link_attrib);
$out = sprintf('<a%s>%s</a>', $attrib_str, $btn_content);
}
if ($attrib['wrapper']) {
$out = html::tag($attrib['wrapper'], null, $out);
}
return $out;
}
/**
* Link an external script file
*
* @param string File URL
* @param string Target position [head|foot]
*/
public function include_script($file, $position='head')
{
static $sa_files = array();
if (!preg_match('|^https?://|i', $file) && $file[0] != '/') {
$file = $this->scripts_path . $file;
if ($fs = @filemtime($file)) {
$file .= '?s=' . $fs;
}
}
if (in_array($file, $sa_files)) {
return;
}
$sa_files[] = $file;
if (!is_array($this->script_files[$position])) {
$this->script_files[$position] = array();
}
$this->script_files[$position][] = $file;
}
/**
* Add inline javascript code
*
* @param string JS code snippet
* @param string Target position [head|head_top|foot]
*/
public function add_script($script, $position='head')
{
if (!isset($this->scripts[$position])) {
$this->scripts[$position] = "\n" . rtrim($script);
}
else {
$this->scripts[$position] .= "\n" . rtrim($script);
}
}
/**
* Link an external css file
*
* @param string File URL
*/
public function include_css($file)
{
$this->css_files[] = $file;
}
/**
* Add HTML code to the page header
*
* @param string $str HTML code
*/
public function add_header($str)
{
$this->header .= "\n" . $str;
}
/**
* Add HTML code to the page footer
* To be added right befor </body>
*
* @param string $str HTML code
*/
public function add_footer($str)
{
$this->footer .= "\n" . $str;
}
/**
* Process template and write to stdOut
*
* @param string HTML template
* @param string Base for absolute paths
*/
public function _write($templ = '', $base_path = '')
{
$output = trim($templ);
if (empty($output)) {
$output = $this->default_template;
$is_empty = true;
}
// set default page title
if (empty($this->pagetitle)) {
$this->pagetitle = 'Roundcube Mail';
}
// replace specialchars in content
$page_title = html::quote($this->pagetitle);
$page_header = '';
$page_footer = '';
// include meta tag with charset
if (!empty($this->charset)) {
if (!headers_sent()) {
header('Content-Type: text/html; charset=' . $this->charset);
}
$page_header = '<meta http-equiv="content-type"';
$page_header.= ' content="text/html; charset=';
$page_header.= $this->charset . '" />'."\n";
}
// definition of the code to be placed in the document header and footer
if (is_array($this->script_files['head'])) {
foreach ($this->script_files['head'] as $file) {
$page_header .= html::script($file);
}
}
$head_script = $this->scripts['head_top'] . $this->scripts['head'];
if (!empty($head_script)) {
$page_header .= html::script(array(), $head_script);
}
if (!empty($this->header)) {
$page_header .= $this->header;
}
// put docready commands into page footer
if (!empty($this->scripts['docready'])) {
$this->add_script('$(document).ready(function(){ ' . $this->scripts['docready'] . "\n});", 'foot');
}
if (is_array($this->script_files['foot'])) {
foreach ($this->script_files['foot'] as $file) {
$page_footer .= html::script($file);
}
}
if (!empty($this->footer)) {
$page_footer .= $this->footer . "\n";
}
if (!empty($this->scripts['foot'])) {
$page_footer .= html::script(array(), $this->scripts['foot']);
}
// find page header
if ($hpos = stripos($output, '</head>')) {
$page_header .= "\n";
}
else {
if (!is_numeric($hpos)) {
$hpos = stripos($output, '<body');
}
if (!is_numeric($hpos) && ($hpos = stripos($output, '<html'))) {
while ($output[$hpos] != '>') {
$hpos++;
}
$hpos++;
}
$page_header = "<head>\n<title>$page_title</title>\n$page_header\n</head>\n";
}
// add page hader
if ($hpos) {
$output = substr_replace($output, $page_header, $hpos, 0);
}
else {
$output = $page_header . $output;
}
// add page footer
if (($fpos = strripos($output, '</body>')) || ($fpos = strripos($output, '</html>'))) {
$output = substr_replace($output, $page_footer."\n", $fpos, 0);
}
else {
$output .= "\n".$page_footer;
}
// add css files in head, before scripts, for speed up with parallel downloads
if (!empty($this->css_files) && !$is_empty
&& (($pos = stripos($output, '<script ')) || ($pos = stripos($output, '</head>')))
) {
$css = '';
foreach ($this->css_files as $file) {
$css .= html::tag('link', array('rel' => 'stylesheet',
'type' => 'text/css', 'href' => $file, 'nl' => true));
}
$output = substr_replace($output, $css, $pos, 0);
}
$output = $this->parse_with_globals($this->fix_paths($output));
// trigger hook with final HTML content to be sent
$hook = $this->app->plugins->exec_hook("send_page", array('content' => $output));
if (!$hook['abort']) {
if ($this->charset != RCUBE_CHARSET) {
echo rcube_charset::convert($hook['content'], RCUBE_CHARSET, $this->charset);
}
else {
echo $hook['content'];
}
}
}
/**
* Returns iframe object, registers some related env variables
*
* @param array $attrib HTML attributes
* @param boolean $is_contentframe Register this iframe as the 'contentframe' gui object
* @return string IFRAME element
*/
public function frame($attrib, $is_contentframe = false)
{
static $idcount = 0;
if (!$attrib['id']) {
$attrib['id'] = 'rcmframe' . ++$idcount;
}
$attrib['name'] = $attrib['id'];
$attrib['src'] = $attrib['src'] ? $this->abs_url($attrib['src'], true) : 'program/resources/blank.gif';
// register as 'contentframe' object
if ($is_contentframe || $attrib['contentframe']) {
$this->set_env('contentframe', $attrib['contentframe'] ? $attrib['contentframe'] : $attrib['name']);
$this->set_env('blankpage', $attrib['src']);
}
return html::iframe($attrib);
}
/* ************* common functions delivering gui objects ************** */
/**
* Create a form tag with the necessary hidden fields
*
* @param array Named tag parameters
* @return string HTML code for the form
*/
public function form_tag($attrib, $content = null)
{
if ($this->framed || !empty($_REQUEST['_framed'])) {
$hiddenfield = new html_hiddenfield(array('name' => '_framed', 'value' => '1'));
$hidden = $hiddenfield->show();
}
if ($this->env['extwin']) {
$hiddenfield = new html_hiddenfield(array('name' => '_extwin', 'value' => '1'));
$hidden = $hiddenfield->show();
}
if (!$content)
$attrib['noclose'] = true;
return html::tag('form',
$attrib + array('action' => $this->app->comm_path, 'method' => "get"),
$hidden . $content,
array('id','class','style','name','method','action','enctype','onsubmit'));
}
/**
* Build a form tag with a unique request token
*
* @param array Named tag parameters including 'action' and 'task' values which will be put into hidden fields
* @param string Form content
* @return string HTML code for the form
*/
public function request_form($attrib, $content = '')
{
$hidden = new html_hiddenfield();
if ($attrib['task']) {
$hidden->add(array('name' => '_task', 'value' => $attrib['task']));
}
if ($attrib['action']) {
$hidden->add(array('name' => '_action', 'value' => $attrib['action']));
}
unset($attrib['task'], $attrib['request']);
$attrib['action'] = './';
// we already have a <form> tag
if ($attrib['form']) {
if ($this->framed || !empty($_REQUEST['_framed']))
$hidden->add(array('name' => '_framed', 'value' => '1'));
return $hidden->show() . $content;
}
else
return $this->form_tag($attrib, $hidden->show() . $content);
}
/**
* GUI object 'username'
* Showing IMAP username of the current session
*
* @param array Named tag parameters (currently not used)
* @return string HTML code for the gui object
*/
public function current_username($attrib)
{
static $username;
// alread fetched
if (!empty($username)) {
return $username;
}
// Current username is an e-mail address
if (strpos($_SESSION['username'], '@')) {
$username = $_SESSION['username'];
}
// get e-mail address from default identity
else if ($sql_arr = $this->app->user->get_identity()) {
$username = $sql_arr['email'];
}
else {
$username = $this->app->user->get_username();
}
return rcube_utils::idn_to_utf8($username);
}
/**
* GUI object 'loginform'
* Returns code for the webmail login form
*
* @param array Named parameters
* @return string HTML code for the gui object
*/
protected function login_form($attrib)
{
$default_host = $this->config->get('default_host');
$autocomplete = (int) $this->config->get('login_autocomplete');
$_SESSION['temp'] = true;
// save original url
$url = rcube_utils::get_input_value('_url', rcube_utils::INPUT_POST);
if (empty($url) && !preg_match('/_(task|action)=logout/', $_SERVER['QUERY_STRING']))
$url = $_SERVER['QUERY_STRING'];
// Disable autocapitalization on iPad/iPhone (#1488609)
$attrib['autocapitalize'] = 'off';
// set atocomplete attribute
$user_attrib = $autocomplete > 0 ? array() : array('autocomplete' => 'off');
$host_attrib = $autocomplete > 0 ? array() : array('autocomplete' => 'off');
$pass_attrib = $autocomplete > 1 ? array() : array('autocomplete' => 'off');
$input_task = new html_hiddenfield(array('name' => '_task', 'value' => 'login'));
$input_action = new html_hiddenfield(array('name' => '_action', 'value' => 'login'));
$input_tzone = new html_hiddenfield(array('name' => '_timezone', 'id' => 'rcmlogintz', 'value' => '_default_'));
$input_url = new html_hiddenfield(array('name' => '_url', 'id' => 'rcmloginurl', 'value' => $url));
$input_user = new html_inputfield(array('name' => '_user', 'id' => 'rcmloginuser', 'required' => 'required')
+ $attrib + $user_attrib);
$input_pass = new html_passwordfield(array('name' => '_pass', 'id' => 'rcmloginpwd', 'required' => 'required')
+ $attrib + $pass_attrib);
$input_host = null;
if (is_array($default_host) && count($default_host) > 1) {
$input_host = new html_select(array('name' => '_host', 'id' => 'rcmloginhost'));
foreach ($default_host as $key => $value) {
if (!is_array($value)) {
$input_host->add($value, (is_numeric($key) ? $value : $key));
}
else {
$input_host = null;
break;
}
}
}
else if (is_array($default_host) && ($host = key($default_host)) !== null) {
$hide_host = true;
$input_host = new html_hiddenfield(array(
'name' => '_host', 'id' => 'rcmloginhost', 'value' => is_numeric($host) ? $default_host[$host] : $host) + $attrib);
}
else if (empty($default_host)) {
$input_host = new html_inputfield(array('name' => '_host', 'id' => 'rcmloginhost')
+ $attrib + $host_attrib);
}
$form_name = !empty($attrib['form']) ? $attrib['form'] : 'form';
$this->add_gui_object('loginform', $form_name);
// create HTML table with two cols
$table = new html_table(array('cols' => 2));
$table->add('title', html::label('rcmloginuser', html::quote($this->app->gettext('username'))));
$table->add('input', $input_user->show(rcube_utils::get_input_value('_user', rcube_utils::INPUT_GPC)));
$table->add('title', html::label('rcmloginpwd', html::quote($this->app->gettext('password'))));
$table->add('input', $input_pass->show());
// add host selection row
if (is_object($input_host) && !$hide_host) {
$table->add('title', html::label('rcmloginhost', html::quote($this->app->gettext('server'))));
$table->add('input', $input_host->show(rcube_utils::get_input_value('_host', rcube_utils::INPUT_GPC)));
}
$out = $input_task->show();
$out .= $input_action->show();
$out .= $input_tzone->show();
$out .= $input_url->show();
$out .= $table->show();
if ($hide_host) {
$out .= $input_host->show();
}
// surround html output with a form tag
if (empty($attrib['form'])) {
$out = $this->form_tag(array('name' => $form_name, 'method' => 'post'), $out);
}
// include script for timezone detection
$this->include_script('jstz.min.js');
return $out;
}
/**
* GUI object 'preloader'
* Loads javascript code for images preloading
*
* @param array Named parameters
* @return void
*/
protected function preloader($attrib)
{
$images = preg_split('/[\s\t\n,]+/', $attrib['images'], -1, PREG_SPLIT_NO_EMPTY);
$images = array_map(array($this, 'abs_url'), $images);
if (empty($images) || $this->app->task == 'logout')
return;
$this->add_script('var images = ' . self::json_serialize($images) .';
for (var i=0; i<images.length; i++) {
img = new Image();
img.src = images[i];
}', 'docready');
}
/**
* GUI object 'searchform'
* Returns code for search function
*
* @param array Named parameters
* @return string HTML code for the gui object
*/
protected function search_form($attrib)
{
// add some labels to client
$this->add_label('searching');
$attrib['name'] = '_q';
if (empty($attrib['id'])) {
$attrib['id'] = 'rcmqsearchbox';
}
if ($attrib['type'] == 'search' && !$this->browser->khtml) {
unset($attrib['type'], $attrib['results']);
}
$input_q = new html_inputfield($attrib);
$out = $input_q->show();
$this->add_gui_object('qsearchbox', $attrib['id']);
// add form tag around text field
if (empty($attrib['form'])) {
$out = $this->form_tag(array(
'name' => "rcmqsearchform",
'onsubmit' => self::JS_OBJECT_NAME . ".command('search'); return false",
'style' => "display:inline"),
$out);
}
return $out;
}
/**
* Builder for GUI object 'message'
*
* @param array Named tag parameters
* @return string HTML code for the gui object
*/
protected function message_container($attrib)
{
if (isset($attrib['id']) === false) {
$attrib['id'] = 'rcmMessageContainer';
}
$this->add_gui_object('message', $attrib['id']);
return html::div($attrib, '');
}
/**
* GUI object 'charsetselector'
*
* @param array Named parameters for the select tag
* @return string HTML code for the gui object
*/
public function charset_selector($attrib)
{
// pass the following attributes to the form class
$field_attrib = array('name' => '_charset');
foreach ($attrib as $attr => $value) {
if (in_array($attr, array('id', 'name', 'class', 'style', 'size', 'tabindex'))) {
$field_attrib[$attr] = $value;
}
}
$charsets = array(
'UTF-8' => 'UTF-8 ('.$this->app->gettext('unicode').')',
'US-ASCII' => 'ASCII ('.$this->app->gettext('english').')',
'ISO-8859-1' => 'ISO-8859-1 ('.$this->app->gettext('westerneuropean').')',
'ISO-8859-2' => 'ISO-8859-2 ('.$this->app->gettext('easterneuropean').')',
'ISO-8859-4' => 'ISO-8859-4 ('.$this->app->gettext('baltic').')',
'ISO-8859-5' => 'ISO-8859-5 ('.$this->app->gettext('cyrillic').')',
'ISO-8859-6' => 'ISO-8859-6 ('.$this->app->gettext('arabic').')',
'ISO-8859-7' => 'ISO-8859-7 ('.$this->app->gettext('greek').')',
'ISO-8859-8' => 'ISO-8859-8 ('.$this->app->gettext('hebrew').')',
'ISO-8859-9' => 'ISO-8859-9 ('.$this->app->gettext('turkish').')',
'ISO-8859-10' => 'ISO-8859-10 ('.$this->app->gettext('nordic').')',
'ISO-8859-11' => 'ISO-8859-11 ('.$this->app->gettext('thai').')',
'ISO-8859-13' => 'ISO-8859-13 ('.$this->app->gettext('baltic').')',
'ISO-8859-14' => 'ISO-8859-14 ('.$this->app->gettext('celtic').')',
'ISO-8859-15' => 'ISO-8859-15 ('.$this->app->gettext('westerneuropean').')',
'ISO-8859-16' => 'ISO-8859-16 ('.$this->app->gettext('southeasterneuropean').')',
'WINDOWS-1250' => 'Windows-1250 ('.$this->app->gettext('easterneuropean').')',
'WINDOWS-1251' => 'Windows-1251 ('.$this->app->gettext('cyrillic').')',
'WINDOWS-1252' => 'Windows-1252 ('.$this->app->gettext('westerneuropean').')',
'WINDOWS-1253' => 'Windows-1253 ('.$this->app->gettext('greek').')',
'WINDOWS-1254' => 'Windows-1254 ('.$this->app->gettext('turkish').')',
'WINDOWS-1255' => 'Windows-1255 ('.$this->app->gettext('hebrew').')',
'WINDOWS-1256' => 'Windows-1256 ('.$this->app->gettext('arabic').')',
'WINDOWS-1257' => 'Windows-1257 ('.$this->app->gettext('baltic').')',
'WINDOWS-1258' => 'Windows-1258 ('.$this->app->gettext('vietnamese').')',
'ISO-2022-JP' => 'ISO-2022-JP ('.$this->app->gettext('japanese').')',
'ISO-2022-KR' => 'ISO-2022-KR ('.$this->app->gettext('korean').')',
'ISO-2022-CN' => 'ISO-2022-CN ('.$this->app->gettext('chinese').')',
'EUC-JP' => 'EUC-JP ('.$this->app->gettext('japanese').')',
'EUC-KR' => 'EUC-KR ('.$this->app->gettext('korean').')',
'EUC-CN' => 'EUC-CN ('.$this->app->gettext('chinese').')',
'BIG5' => 'BIG5 ('.$this->app->gettext('chinese').')',
'GB2312' => 'GB2312 ('.$this->app->gettext('chinese').')',
);
if (!empty($_POST['_charset'])) {
$set = $_POST['_charset'];
}
else if (!empty($attrib['selected'])) {
$set = $attrib['selected'];
}
else {
$set = $this->get_charset();
}
$set = strtoupper($set);
if (!isset($charsets[$set])) {
$charsets[$set] = $set;
}
$select = new html_select($field_attrib);
$select->add(array_values($charsets), array_keys($charsets));
return $select->show($set);
}
/**
* Include content from config/about.<LANG>.html if available
*/
protected function about_content($attrib)
{
$content = '';
$filenames = array(
'about.' . $_SESSION['language'] . '.html',
'about.' . substr($_SESSION['language'], 0, 2) . '.html',
'about.html',
);
foreach ($filenames as $file) {
$fn = RCUBE_CONFIG_DIR . $file;
if (is_readable($fn)) {
$content = file_get_contents($fn);
$content = $this->parse_conditions($content);
$content = $this->parse_xml($content);
break;
}
}
return $content;
}
}

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