enigma.js
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enigma.js
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	/* Enigma Plugin */

	window.rcmail && rcmail.addEventListener('init', function(evt) {
	if (rcmail.env.task == 'settings') {
	if (rcmail.gui_objects.keyslist) {
	rcmail.keys_list = new rcube_list_widget(rcmail.gui_objects.keyslist,
	{multiselect:true, draggable:false, keyboard:false});
	rcmail.keys_list
	.addEventListener('select', function(o) { rcmail.enigma_keylist_select(o); })
	.addEventListener('keypress', function(o) { rcmail.enigma_keylist_keypress(o); })
	.init()
	.focus();

	rcmail.enigma_list();

	rcmail.register_command('firstpage', function(props) { return rcmail.enigma_list_page('first'); });
	rcmail.register_command('previouspage', function(props) { return rcmail.enigma_list_page('previous'); });
	rcmail.register_command('nextpage', function(props) { return rcmail.enigma_list_page('next'); });
	rcmail.register_command('lastpage', function(props) { return rcmail.enigma_list_page('last'); });
	}

	if (rcmail.env.action == 'plugin.enigmakeys') {
	rcmail.register_command('search', function(props) {return rcmail.enigma_search(props); }, true);
	rcmail.register_command('reset-search', function(props) {return rcmail.enigma_search_reset(props); }, true);
	rcmail.register_command('plugin.enigma-import', function() { rcmail.enigma_import(); }, true);
	rcmail.register_command('plugin.enigma-key-export', function() { rcmail.enigma_export(); });
	rcmail.register_command('plugin.enigma-key-export-selected', function() { rcmail.enigma_export(true); });
	rcmail.register_command('plugin.enigma-key-import', function() { rcmail.enigma_key_import(); }, true);
	rcmail.register_command('plugin.enigma-key-delete', function(props) { return rcmail.enigma_delete(); });
	rcmail.register_command('plugin.enigma-key-create', function(props) { return rcmail.enigma_key_create(); }, true);
	rcmail.register_command('plugin.enigma-key-save', function(props) { return rcmail.enigma_key_create_save(); }, true);

	rcmail.addEventListener('responseafterplugin.enigmakeys', function() {
	rcmail.enable_command('plugin.enigma-key-export', rcmail.env.rowcount > 0);
	});
	}
	}
	else if (rcmail.env.task == 'mail') {
	if (rcmail.env.action == 'compose') {
	rcmail.addEventListener('beforesend', function(props) { rcmail.enigma_beforesend_handler(props); })
	.addEventListener('beforesavedraft', function(props) { rcmail.enigma_beforesavedraft_handler(props); });

	$('input,label', $('#enigmamenu')).mouseup(function(e) {
	// don't close the menu on mouse click inside
	e.stopPropagation();
	});
	}

	$.each(['encrypt', 'sign'], function() {
	if (rcmail.env['enigma_force_' + this])
	$('[name="_enigma_' + this + '"]').prop('checked', true);
	});

	if (rcmail.env.enigma_password_request) {
	rcmail.enigma_password_request(rcmail.env.enigma_password_request);
	}
	}
	});


	/*********************************************************/
	/******* Enigma Settings/Keys/Certs UI *******/
	/*********************************************************/

	// Display key(s) import form
	rcube_webmail.prototype.enigma_key_import = function()
	{
	this.enigma_loadframe('&_action=plugin.enigmakeys&_a=import');
	};

	// Display key(s) generation form
	rcube_webmail.prototype.enigma_key_create = function()
	{
	this.enigma_loadframe('&_action=plugin.enigmakeys&_a=create');
	};

	// Generate key(s) and submit them
	rcube_webmail.prototype.enigma_key_create_save = function()
	{
	var options, lock,
	user = $('#key-ident > option').filter(':selected').text(),
	password = $('#key-pass').val(),
	confirm = $('#key-pass-confirm').val(),
	size = $('#key-size').val();

	// validate the form
	if (!password \|\| !confirm)
	return alert(this.get_label('enigma.formerror'));

	if (password != confirm)
	return alert(this.get_label('enigma.passwordsdiffer'));

	if (user.match(/^<[^>]+>$/))
	return alert(this.get_label('enigma.nonameident'));

	// generate keys
	// use OpenPGP.js if browser supports required features
	if (window.openpgp && window.crypto && (window.crypto.getRandomValues \|\| window.crypto.subtle)) {
	lock = this.set_busy(true, 'enigma.keygenerating');
	options = {
	numBits: size,
	userId: user,
	passphrase: password
	};

	openpgp.generateKeyPair(options).then(function(keypair) {
	// success
	var post = {_a: 'import', _keys: keypair.privateKeyArmored};

	// send request to server
	rcmail.http_post('plugin.enigmakeys', post, lock);
	}, function(error) {
	// failure
	rcmail.set_busy(false, null, lock);
	rcmail.display_message(rcmail.get_label('enigma.keygenerateerror'), 'error');
	});
	}
	// generate keys on the server
	else if (rcmail.env.enigma_keygen_server) {
	lock = this.set_busy(true, 'enigma.keygenerating');
	options = {_a: 'generate', _user: user, _password: password, _size: size};
	rcmail.http_post('plugin.enigmakeys', options, lock);
	}
	else {
	rcmail.display_message(rcmail.get_label('enigma.keygennosupport'), 'error');
	}
	};

	// Action executed after successful key generation and import
	rcube_webmail.prototype.enigma_key_create_success = function()
	{
	parent.rcmail.enigma_list(1);
	};

	// Delete key(s)
	rcube_webmail.prototype.enigma_delete = function()
	{
	var keys = this.keys_list.get_selection();

	if (!keys.length \|\| !confirm(this.get_label('enigma.keyremoveconfirm')))
	return;

	var lock = this.display_message(this.get_label('enigma.keyremoving'), 'loading'),
	post = {_a: 'delete', _keys: keys};

	// send request to server
	this.http_post('plugin.enigmakeys', post, lock);
	};

	// Export key(s)
	rcube_webmail.prototype.enigma_export = function(selected)
	{
	var keys = selected ? this.keys_list.get_selection().join(',') : '*';

	if (!keys.length)
	return;

	this.goto_url('plugin.enigmakeys', {_a: 'export', _keys: keys}, false, true);
	};

	// Submit key(s) import form
	rcube_webmail.prototype.enigma_import = function()
	{
	var form, file;

	if (form = this.gui_objects.importform) {
	file = document.getElementById('rcmimportfile');
	if (file && !file.value) {
	alert(this.get_label('selectimportfile'));
	return;
	}

	var lock = this.set_busy(true, 'importwait');

	form.action = this.add_url(form.action, '_unlock', lock);
	form.submit();

	this.lock_form(form, true);
	}
	};

	// list row selection handler
	rcube_webmail.prototype.enigma_keylist_select = function(list)
	{
	var id = list.get_single_selection(), url;

	if (id)
	url = '&_action=plugin.enigmakeys&_a=info&_id=' + id;

	this.enigma_loadframe(url);
	this.enable_command('plugin.enigma-key-delete', 'plugin.enigma-key-export-selected', list.selection.length > 0);
	};

	rcube_webmail.prototype.enigma_keylist_keypress = function(list)
	{
	if (list.modkey == CONTROL_KEY)
	return;

	if (list.key_pressed == list.DELETE_KEY \|\| list.key_pressed == list.BACKSPACE_KEY)
	this.command('plugin.enigma-key-delete');
	else if (list.key_pressed == 33)
	this.command('previouspage');
	else if (list.key_pressed == 34)
	this.command('nextpage');
	};

	// load key frame
	rcube_webmail.prototype.enigma_loadframe = function(url)
	{
	var frm, win;

	if (this.env.contentframe && window.frames && (frm = window.frames[this.env.contentframe])) {
	if (!url && (win = window.frames[this.env.contentframe])) {
	if (win.location && win.location.href.indexOf(this.env.blankpage) < 0)
	win.location.href = this.env.blankpage;
	return;
	}

	this.env.frame_lock = this.set_busy(true, 'loading');
	frm.location.href = this.env.comm_path + '&_framed=1&' + url;
	}
	};

	// Search keys/certs
	rcube_webmail.prototype.enigma_search = function(props)
	{
	if (!props && this.gui_objects.qsearchbox)
	props = this.gui_objects.qsearchbox.value;

	if (props \|\| this.env.search_request) {
	var params = {'_a': 'search', '_q': urlencode(props)},
	lock = this.set_busy(true, 'searching');
	// if (this.gui_objects.search_filter)
	// addurl += '&_filter=' + this.gui_objects.search_filter.value;
	this.env.current_page = 1;
	this.enigma_loadframe();
	this.enigma_clear_list();
	this.http_post('plugin.enigmakeys', params, lock);
	}

	return false;
	}

	// Reset search filter and the list
	rcube_webmail.prototype.enigma_search_reset = function(props)
	{
	var s = this.env.search_request;
	this.reset_qsearch();

	if (s) {
	this.enigma_loadframe();
	this.enigma_clear_list();

	// refresh the list
	this.enigma_list();
	}

	return false;
	}

	// Keys/certs listing
	rcube_webmail.prototype.enigma_list = function(page)
	{
	var params = {'_a': 'list'},
	lock = this.set_busy(true, 'loading');

	this.env.current_page = page ? page : 1;

	if (this.env.search_request)
	params._q = this.env.search_request;
	if (page)
	params._p = page;

	this.enigma_clear_list();
	this.http_post('plugin.enigmakeys', params, lock);
	}

	// Change list page
	rcube_webmail.prototype.enigma_list_page = function(page)
	{
	if (page == 'next')
	page = this.env.current_page + 1;
	else if (page == 'last')
	page = this.env.pagecount;
	else if (page == 'prev' && this.env.current_page > 1)
	page = this.env.current_page - 1;
	else if (page == 'first' && this.env.current_page > 1)
	page = 1;

	this.enigma_list(page);
	}

	// Remove list rows
	rcube_webmail.prototype.enigma_clear_list = function()
	{
	this.enigma_loadframe();
	if (this.keys_list)
	this.keys_list.clear(true);

	this.enable_command('plugin.enigma-key-delete', 'plugin.enigma-key-delete-selected', false);
	}

	// Adds a row to the list
	rcube_webmail.prototype.enigma_add_list_row = function(r)
	{
	if (!this.gui_objects.keyslist \|\| !this.keys_list)
	return false;

	var list = this.keys_list,
	tbody = this.gui_objects.keyslist.tBodies[0],
	rowcount = tbody.rows.length,
	even = rowcount%2,
	css_class = 'message'
	+ (even ? ' even' : ' odd'),
	// for performance use DOM instead of jQuery here
	row = document.createElement('tr'),
	col = document.createElement('td');

	row.id = 'rcmrow' + r.id;
	row.className = css_class;

	col.innerHTML = r.name;
	row.appendChild(col);
	list.insert_row(row);
	}


	/*********************************************************/
	/******* Enigma Message methods *******/
	/*********************************************************/

	// handle message send/save action
	rcube_webmail.prototype.enigma_beforesend_handler = function(props)
	{
	this.env.last_action = 'send';
	this.enigma_compose_handler(props);
	}

	rcube_webmail.prototype.enigma_beforesavedraft_handler = function(props)
	{
	this.env.last_action = 'savedraft';
	this.enigma_compose_handler(props);
	}

	rcube_webmail.prototype.enigma_compose_handler = function(props)
	{
	var form = this.gui_objects.messageform;

	// copy inputs from enigma menu to the form
	$('#enigmamenu input').each(function() {
	var id = this.id + '_cpy', input = $('#' + id);

	if (!input.length) {
	input = $(this).clone();
	input.prop({id: id, type: 'hidden'}).appendTo(form);
	}

	input.val(this.checked ? '1' : '');
	});

	// disable signing when saving drafts
	if (this.env.last_action == 'savedraft') {
	$('input[name="_enigma_sign"]', form).val(0);
	}
	}

	// Import attached keys/certs file
	rcube_webmail.prototype.enigma_import_attachment = function(mime_id)
	{
	var lock = this.set_busy(true, 'loading'),
	post = {_uid: this.env.uid, _mbox: this.env.mailbox, _part: mime_id};

	this.http_post('plugin.enigmaimport', post, lock);

	return false;
	}

	// password request popup
	rcube_webmail.prototype.enigma_password_request = function(data)
	{
	if (!data \|\| !data.keyid) {
	return;
	}

	var ref = this,
	msg = this.get_label('enigma.enterkeypass'),
	myprompt = $('<div class="prompt">'),
	myprompt_content = $('<div class="message">')
	.appendTo(myprompt),
	myprompt_input = $('<input>').attr({type: 'password', size: 30})
	.keypress(function(e) {
	if (e.which == 13)
	(ref.is_framed() ? window.parent.$ : $)('.ui-dialog-buttonpane button.mainaction:visible').click();
	})
	.appendTo(myprompt);

	data.key = data.keyid;
	if (data.keyid.length > 8)
	data.keyid = data.keyid.substr(data.keyid.length - 8);

	$.each(['keyid', 'user'], function() {
	msg = msg.replace('$' + this, data[this]);
	});

	myprompt_content.text(msg);

	this.show_popup_dialog(myprompt, this.get_label('enigma.enterkeypasstitle'),
	[{
	text: this.get_label('save'),
	'class': 'mainaction',
	click: function(e) {
	e.stopPropagation();

	var jq = ref.is_framed() ? window.parent.$ : $;

	data.password = myprompt_input.val();

	if (!data.password) {
	myprompt_input.focus();
	return;
	}

	ref.enigma_password_submit(data);
	jq(this).remove();
	}
	},
	{
	text: this.get_label('cancel'),
	click: function(e) {
	var jq = ref.is_framed() ? window.parent.$ : $;
	e.stopPropagation();
	jq(this).remove();
	}
	}], {width: 400});

	if (this.is_framed() && parent.rcmail.message_list) {
	// this fixes bug when pressing Enter on "Save" button in the dialog
	parent.rcmail.message_list.blur();
	}
	}

	// submit entered password
	rcube_webmail.prototype.enigma_password_submit = function(data)
	{
	if (this.env.action == 'compose' && !data['compose-init']) {
	return this.enigma_password_compose_submit(data);
	}

	var lock = this.set_busy(true, 'loading'),
	form = $('<form>').attr({method: 'post', action: data.action \|\| location.href, style: 'display:none'})
	.append($('<input>').attr({type: 'hidden', name: '_keyid', value: data.key}))
	.append($('<input>').attr({type: 'hidden', name: '_passwd', value: data.password}))
	.append($('<input>').attr({type: 'hidden', name: '_token', value: this.env.request_token}))
	.append($('<input>').attr({type: 'hidden', name: '_unlock', value: lock}));

	// Additional form fields for request parameters
	$.each(data, function(i, v) {
	if (i.indexOf('input') == 0)
	form.append($('<input>').attr({type: 'hidden', name: i.substring(5), value: v}))
	});

	if (data.iframe) {
	var name = 'enigma_frame_' + (new Date()).getTime(),
	frame = $('<iframe>').attr({style: 'display:none', name: name}).appendTo(document.body);
	form.attr('target', name);
	}

	form.appendTo(document.body).submit();
	}

	// submit entered password - in mail compose page
	rcube_webmail.prototype.enigma_password_compose_submit = function(data)
	{
	var form = this.gui_objects.messageform;

	if (!$('input[name="_keyid"]', form).length) {
	$(form).append($('<input>').attr({type: 'hidden', name: '_keyid', value: data.key}))
	.append($('<input>').attr({type: 'hidden', name: '_passwd', value: data.password}));
	}
	else {
	$('input[name="_keyid"]', form).val(data.key);
	$('input[name="_passwd"]', form).val(data.password);
	}

	this.submit_messageform(this.env.last_action == 'savedraft');
	}

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