<?php
/*
+-------------------------------------------------------------------------+
| User Interface for the Enigma Plugin |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License version 2 |
| as published by the Free Software Foundation. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
+-------------------------------------------------------------------------+
| Author: Aleksander Machniak <alec@alec.pl> |
+-------------------------------------------------------------------------+
*/
class enigma_ui
{
private $rc;
private $enigma;
private $home;
private $css_loaded;
private $js_loaded;
private $data;
private $keys_parts = array();
private $keys_bodies = array();
function __construct($enigma_plugin, $home='')
{
$this->enigma = $enigma_plugin;
$this->rc = $enigma_plugin->rc;
$this->home = $home; // we cannot use $enigma_plugin->home here
}
/**
* UI initialization and requests handlers.
*
* @param string Preferences section
*/
function init($section='')
{
$this->add_js();
$action = rcube_utils::get_input_value('_a', rcube_utils::INPUT_GPC);
if ($this->rc->action == 'plugin.enigmakeys') {
switch ($action) {
case 'delete':
$this->key_delete();
break;
/*
case 'edit':
$this->key_edit();
break;
*/
case 'import':
$this->key_import();
break;
case 'search':
case 'list':
$this->key_list();
break;
case 'info':
$this->key_info();
break;
}
$this->rc->output->add_handlers(array(
'keyslist' => array($this, 'tpl_keys_list'),
'keyframe' => array($this, 'tpl_key_frame'),
'countdisplay' => array($this, 'tpl_keys_rowcount'),
'searchform' => array($this->rc->output, 'search_form'),
));
$this->rc->output->set_pagetitle($this->enigma->gettext('enigmakeys'));
$this->rc->output->send('enigma.keys');
}
/*
// Preferences UI
else if ($this->rc->action == 'plugin.enigmacerts') {
$this->rc->output->add_handlers(array(
'keyslist' => array($this, 'tpl_certs_list'),
'keyframe' => array($this, 'tpl_cert_frame'),
'countdisplay' => array($this, 'tpl_certs_rowcount'),
'searchform' => array($this->rc->output, 'search_form'),
));
$this->rc->output->set_pagetitle($this->enigma->gettext('enigmacerts'));
$this->rc->output->send('enigma.certs');
}
*/
// Message composing UI
else if ($this->rc->action == 'compose') {
$this->compose_ui();
}
}
/**
* Adds CSS style file to the page header.
*/
function add_css()
{
if ($this->css_loaded)
return;
$skin_path = $this->enigma->local_skin_path();
if (is_file($this->home . "/$skin_path/enigma.css")) {
$this->enigma->include_stylesheet("$skin_path/enigma.css");
}
$this->css_loaded = true;
}
/**
* Adds javascript file to the page header.
*/
function add_js()
{
if ($this->js_loaded) {
return;
}
$this->enigma->include_script('enigma.js');
$this->js_loaded = true;
}
/**
* Initializes key password prompt
*
* @param enigma_error Error object with key info
*/
function password_prompt($status)
{
$data = $status->getData('missing');
if (empty($data)) {
$data = $status->getData('bad');
}
$data = array('keyid' => key($data), 'user' => $data[key($data)]);
$this->rc->output->set_env('enigma_password_request', $data);
// add some labels to client
$this->rc->output->add_label('enigma.enterkeypasstitle', 'enigma.enterkeypass',
'save', 'cancel');
$this->add_css();
$this->add_js();
}
/**
* Template object for key info/edit frame.
*
* @param array Object attributes
*
* @return string HTML output
*/
function tpl_key_frame($attrib)
{
if (!$attrib['id']) {
$attrib['id'] = 'rcmkeysframe';
}
$attrib['name'] = $attrib['id'];
$this->rc->output->set_env('contentframe', $attrib['name']);
$this->rc->output->set_env('blankpage', $attrib['src'] ?
$this->rc->output->abs_url($attrib['src']) : 'program/resources/blank.gif');
return $this->rc->output->frame($attrib);
}
/**
* Template object for list of keys.
*
* @param array Object attributes
*
* @return string HTML content
*/
function tpl_keys_list($attrib)
{
// add id to message list table if not specified
if (!strlen($attrib['id'])) {
$attrib['id'] = 'rcmenigmakeyslist';
}
// define list of cols to be displayed
$a_show_cols = array('name');
// create XHTML table
$out = $this->rc->table_output($attrib, array(), $a_show_cols, 'id');
// set client env
$this->rc->output->add_gui_object('keyslist', $attrib['id']);
$this->rc->output->include_script('list.js');
// add some labels to client
$this->rc->output->add_label('enigma.keyremoveconfirm', 'enigma.keyremoving');
return $out;
}
/**
* Key listing (and searching) request handler
*/
private function key_list()
{
$this->enigma->load_engine();
$pagesize = $this->rc->config->get('pagesize', 100);
$page = max(intval(rcube_utils::get_input_value('_p', rcube_utils::INPUT_GPC)), 1);
$search = rcube_utils::get_input_value('_q', rcube_utils::INPUT_GPC);
// define list of cols to be displayed
// $a_show_cols = array('name');
// Get the list
$list = $this->enigma->engine->list_keys($search);
if ($list && ($list instanceof enigma_error))
$this->rc->output->show_message('enigma.keylisterror', 'error');
else if (empty($list))
$this->rc->output->show_message('enigma.nokeysfound', 'notice');
else {
if (is_array($list)) {
// Save the size
$listsize = count($list);
// Sort the list by key (user) name
usort($list, array('enigma_key', 'cmp'));
// Slice current page
$list = array_slice($list, ($page - 1) * $pagesize, $pagesize);
$size = count($list);
// Add rows
foreach ($list as $key) {
$this->rc->output->command('enigma_add_list_row',
array('name' => rcube::Q($key->name), 'id' => $key->id));
}
}
}
$this->rc->output->set_env('search_request', $search);
$this->rc->output->set_env('pagecount', ceil($listsize/$pagesize));
$this->rc->output->set_env('current_page', $page);
$this->rc->output->command('set_rowcount',
$this->get_rowcount_text($listsize, $size, $page));
$this->rc->output->send();
}
/**
* Template object for list records counter.
*
* @param array Object attributes
*
* @return string HTML output
*/
function tpl_keys_rowcount($attrib)
{
if (!$attrib['id'])
$attrib['id'] = 'rcmcountdisplay';
$this->rc->output->add_gui_object('countdisplay', $attrib['id']);
return html::span($attrib, $this->get_rowcount_text());
}
/**
* Returns text representation of list records counter
*/
private function get_rowcount_text($all=0, $curr_count=0, $page=1)
{
if (!$curr_count)
$out = $this->enigma->gettext('nokeysfound');
else {
$pagesize = $this->rc->config->get('pagesize', 100);
$first = ($page - 1) * $pagesize;
$out = $this->enigma->gettext(array(
'name' => 'keysfromto',
'vars' => array(
'from' => $first + 1,
'to' => $first + $curr_count,
'count' => $all)
));
}
return $out;
}
/**
* Key information page handler
*/
private function key_info()
{
$this->enigma->load_engine();
$id = rcube_utils::get_input_value('_id', rcube_utils::INPUT_GET);
$res = $this->enigma->engine->get_key($id);
if ($res instanceof enigma_key) {
$this->data = $res;
}
else { // error
$this->rc->output->show_message('enigma.keyopenerror', 'error');
$this->rc->output->command('parent.enigma_loadframe');
$this->rc->output->send('iframe');
}
$this->rc->output->add_handlers(array(
'keyname' => array($this, 'tpl_key_name'),
'keydata' => array($this, 'tpl_key_data'),
));
$this->rc->output->set_pagetitle($this->enigma->gettext('keyinfo'));
$this->rc->output->send('enigma.keyinfo');
}
/**
* Template object for key name
*/
function tpl_key_name($attrib)
{
return rcube::Q($this->data->name);
}
/**
* Template object for key information page content
*/
function tpl_key_data($attrib)
{
$out = '';
$table = new html_table(array('cols' => 2));
// Key user ID
$table->add('title', $this->enigma->gettext('keyuserid'));
$table->add(null, rcube::Q($this->data->name));
// Key ID
$table->add('title', $this->enigma->gettext('keyid'));
$table->add(null, $this->data->subkeys[0]->get_short_id());
// Key type
$keytype = $this->data->get_type();
if ($keytype == enigma_key::TYPE_KEYPAIR)
$type = $this->enigma->gettext('typekeypair');
else if ($keytype == enigma_key::TYPE_PUBLIC)
$type = $this->enigma->gettext('typepublickey');
$table->add('title', $this->enigma->gettext('keytype'));
$table->add(null, $type);
// Key fingerprint
$table->add('title', $this->enigma->gettext('fingerprint'));
$table->add(null, $this->data->subkeys[0]->get_fingerprint());
$out .= html::tag('fieldset', null,
html::tag('legend', null,
$this->enigma->gettext('basicinfo')) . $table->show($attrib));
/*
// Subkeys
$table = new html_table(array('cols' => 6));
// Columns: Type, ID, Algorithm, Size, Created, Expires
$out .= html::tag('fieldset', null,
html::tag('legend', null,
$this->enigma->gettext('subkeys')) . $table->show($attrib));
// Additional user IDs
$table = new html_table(array('cols' => 2));
// Columns: User ID, Validity
$out .= html::tag('fieldset', null,
html::tag('legend', null,
$this->enigma->gettext('userids')) . $table->show($attrib));
*/
return $out;
}
/**
* Key import page handler
*/
private function key_import()
{
// Import process
if ($_FILES['_file']['tmp_name'] && is_uploaded_file($_FILES['_file']['tmp_name'])) {
$this->enigma->load_engine();
$result = $this->enigma->engine->import_key($_FILES['_file']['tmp_name'], true);
if (is_array($result)) {
// reload list if any keys has been added
if ($result['imported']) {
$this->rc->output->command('parent.enigma_list', 1);
}
else
$this->rc->output->command('parent.enigma_loadframe');
$this->rc->output->show_message('enigma.keysimportsuccess', 'confirmation',
array('new' => $result['imported'], 'old' => $result['unchanged']));
$this->rc->output->send('iframe');
}
else {
$this->rc->output->show_message('enigma.keysimportfailed', 'error');
}
}
else if ($err = $_FILES['_file']['error']) {
if ($err == UPLOAD_ERR_INI_SIZE || $err == UPLOAD_ERR_FORM_SIZE) {
$this->rc->output->show_message('filesizeerror', 'error',
array('size' => $this->rc->show_bytes(parse_bytes(ini_get('upload_max_filesize')))));
} else {
$this->rc->output->show_message('fileuploaderror', 'error');
}
}
$this->rc->output->add_handlers(array(
'importform' => array($this, 'tpl_key_import_form'),
));
$this->rc->output->set_pagetitle($this->enigma->gettext('keyimport'));
$this->rc->output->send('enigma.keyimport');
}
/**
* Template object for key import (upload) form
*/
function tpl_key_import_form($attrib)
{
$attrib += array('id' => 'rcmKeyImportForm');
$upload = new html_inputfield(array('type' => 'file', 'name' => '_file',
'id' => 'rcmimportfile', 'size' => 30));
$form = html::p(null,
rcube::Q($this->enigma->gettext('keyimporttext'), 'show')
. html::br() . html::br() . $upload->show()
);
$this->rc->output->add_label('selectimportfile', 'importwait');
$this->rc->output->add_gui_object('importform', $attrib['id']);
$out = $this->rc->output->form_tag(array(
'action' => $this->rc->url(array('action' => $this->rc->action, 'a' => 'import')),
'method' => 'post',
'enctype' => 'multipart/form-data') + $attrib,
$form);
return $out;
}
/**
* Key deleting
*/
private function key_delete()
{
$keys = rcube_utils::get_input_value('_keys', rcube_utils::INPUT_POST);
$this->enigma->load_engine();
foreach ((array)$keys as $key) {
$res = $this->enigma->engine->delete_key($key);
if ($res !== true) {
$this->rc->output->show_message('enigma.keyremoveerror', 'error');
$this->rc->output->command('enigma_list');
$this->rc->output->send();
}
}
$this->rc->output->command('enigma_list');
$this->rc->output->show_message('enigma.keyremovesuccess', 'confirmation');
$this->rc->output->send();
}
private function compose_ui()
{
/*
$this->add_css();
// Options menu button
// @TODO: make this work with non-default skins
$this->enigma->add_button(array(
'type' => 'link',
'command' => 'plugin.enigma',
'onclick' => "rcmail.command('menu-open', 'enigmamenu', event.target, event)",
'class' => 'button enigma',
'title' => 'securityoptions',
'label' => 'securityoptions',
'domain' => $this->enigma->ID,
'width' => 32,
'height' => 32
), 'toolbar');
// Options menu contents
$this->enigma->add_hook('render_page', array($this, 'compose_menu'));
*/
}
function compose_menu($p)
{
$menu = new html_table(array('cols' => 2));
$chbox = new html_checkbox(array('value' => 1));
$menu->add(null, html::label(array('for' => 'enigmadefaultopt'),
rcube::Q($this->enigma->gettext('identdefault'))));
$menu->add(null, $chbox->show(1, array('name' => '_enigma_default', 'id' => 'enigmadefaultopt')));
$menu->add(null, html::label(array('for' => 'enigmasignopt'),
rcube::Q($this->enigma->gettext('signmsg'))));
$menu->add(null, $chbox->show(1, array('name' => '_enigma_sign', 'id' => 'enigmasignopt')));
$menu->add(null, html::label(array('for' => 'enigmacryptopt'),
rcube::Q($this->enigma->gettext('encryptmsg'))));
$menu->add(null, $chbox->show(1, array('name' => '_enigma_crypt', 'id' => 'enigmacryptopt')));
$menu = html::div(array('id' => 'enigmamenu', 'class' => 'popupmenu'),
$menu->show());
$p['content'] = preg_replace('/(<form name="form"[^>]+>)/i', '\\1'."\n$menu", $p['content']);
return $p;
}
/**
* Handler for message_body_prefix hook.
* Called for every displayed (content) part of the message.
* Adds infobox about signature verification and/or decryption
* status above the body.
*
* @param array Original parameters
*
* @return array Modified parameters
*/
function status_message($p)
{
// skip: not a message part
if ($p['part'] instanceof rcube_message) {
return $p;
}
// skip: message has no signed/encoded content
if (!$this->enigma->engine) {
return $p;
}
$engine = $this->enigma->engine;
$part_id = $p['part']->mime_id;
// Decryption status
if (isset($engine->decryptions[$part_id])) {
$attach_scripts = true;
// get decryption status
$status = $engine->decryptions[$part_id];
// display status info
$attrib['id'] = 'enigma-message';
if ($status instanceof enigma_error) {
$attrib['class'] = 'enigmaerror';
$code = $status->getCode();
if ($code == enigma_error::E_KEYNOTFOUND) {
$msg = rcube::Q(str_replace('$keyid', enigma_key::format_id($status->getData('id')),
$this->enigma->gettext('decryptnokey')));
}
else if ($code == enigma_error::E_BADPASS) {
$msg = rcube::Q($this->enigma->gettext('decryptbadpass'));
$this->password_prompt($status);
}
else {
$msg = rcube::Q($this->enigma->gettext('decrypterror'));
}
}
else {
$attrib['class'] = 'enigmanotice';
$msg = rcube::Q($this->enigma->gettext('decryptok'));
}
$p['prefix'] .= html::div($attrib, $msg);
}
// Signature verification status
if (isset($engine->signed_parts[$part_id])
&& ($sig = $engine->signatures[$engine->signed_parts[$part_id]])
) {
$attach_scripts = true;
// display status info
$attrib['id'] = 'enigma-message';
if ($sig instanceof enigma_signature) {
$sender = ($sig->name ? $sig->name . ' ' : '') . '<' . $sig->email . '>';
if ($sig->valid === enigma_error::E_UNVERIFIED) {
$attrib['class'] = 'enigmawarning';
$msg = str_replace('$sender', $sender, $this->enigma->gettext('sigunverified'));
$msg = str_replace('$keyid', $sig->id, $msg);
$msg = rcube::Q($msg);
}
else if ($sig->valid) {
$attrib['class'] = 'enigmanotice';
$msg = rcube::Q(str_replace('$sender', $sender, $this->enigma->gettext('sigvalid')));
}
else {
$attrib['class'] = 'enigmawarning';
$msg = rcube::Q(str_replace('$sender', $sender, $this->enigma->gettext('siginvalid')));
}
}
else if ($sig && $sig->getCode() == enigma_error::E_KEYNOTFOUND) {
$attrib['class'] = 'enigmawarning';
$msg = rcube::Q(str_replace('$keyid', enigma_key::format_id($sig->getData('id')),
$this->enigma->gettext('signokey')));
}
else {
$attrib['class'] = 'enigmaerror';
$msg = rcube::Q($this->enigma->gettext('sigerror'));
}
/*
$msg .= ' ' . html::a(array('href' => "#sigdetails",
'onclick' => rcmail_output::JS_OBJECT_NAME.".command('enigma-sig-details')"),
rcube::Q($this->enigma->gettext('showdetails')));
*/
// test
// $msg .= '<br /><pre>'.$sig->body.'</pre>';
$p['prefix'] .= html::div($attrib, $msg);
// Display each signature message only once
unset($engine->signatures[$engine->signed_parts[$part_id]]);
}
if ($attach_scripts) {
// add css and js script
$this->add_css();
$this->add_js();
}
return $p;
}
/**
* Handler for message_load hook.
* Check message bodies and attachments for keys/certs.
*/
function message_load($p)
{
$engine = $this->enigma->load_engine();
// handle attachments vcard attachments
foreach ((array) $p['object']->attachments as $attachment) {
if ($engine->is_keys_part($attachment)) {
$this->keys_parts[] = $attachment->mime_id;
}
}
// the same with message bodies
foreach ((array) $p['object']->parts as $part) {
if ($engine->is_keys_part($part)) {
$this->keys_parts[] = $part->mime_id;
$this->keys_bodies[] = $part->mime_id;
}
}
// @TODO: inline PGP keys
if ($this->keys_parts) {
$this->enigma->add_texts('localization');
}
return $p;
}
/**
* Handler for template_object_messagebody hook.
* This callback function adds a box below the message content
* if there is a key/cert attachment available
*/
function message_output($p)
{
foreach ($this->keys_parts as $part) {
// remove part's body
if (in_array($part, $this->keys_bodies)) {
$p['content'] = '';
}
// add box below message body
$p['content'] .= html::p(array('class' => 'enigmaattachment'),
html::a(array(
'href' => "#",
'onclick' => "return ".rcmail_output::JS_OBJECT_NAME.".enigma_import_attachment('".rcube::JQ($part)."')",
'title' => $this->enigma->gettext('keyattimport')),
html::span(null, $this->enigma->gettext('keyattfound'))));
$attach_scripts = true;
}
if ($attach_scripts) {
// add css and js script
$this->add_css();
$this->add_js();
}
return $p;
}
}