luci-app-shadowsocks-libev: port to client side

Signed-off-by: Richard Yu <yurichard3839@gmail.com>

4 files changed, 564 insertions, 0 deletions

diff --git a/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/shadowsocks-libev.js b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/shadowsocks-libev.js
new file mode 100644
index 0000000000..3aaaa50121
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/shadowsocks-libev.js
@@ -0,0 +1,242 @@
+'use strict';
+'require uci';
+'require form';
+'require network';
+
+var names_options_server = [
+	'server',
+	'server_port',
+	'method',
+	'key',
+	'password',
+	'plugin',
+	'plugin_opts',
+];
+
+var names_options_client = [
+	'server',
+	'local_address',
+	'local_port',
+];
+
+var names_options_common = [
+	'verbose',
+	'ipv6_first',
+	'fast_open',
+	'no_delay',
+	'reuse_port',
+	'mode',
+	'mtu',
+	'timeout',
+	'user',
+];
+
+var modes = [
+	'tcp_only',
+	'tcp_and_udp',
+	'udp_only',
+];
+
+var methods = [
+	// aead
+	'aes-128-gcm',
+	'aes-192-gcm',
+	'aes-256-gcm',
+	'chacha20-ietf-poly1305',
+	'xchacha20-ietf-poly1305',
+	// stream
+	'table',
+	'rc4',
+	'rc4-md5',
+	'aes-128-cfb',
+	'aes-192-cfb',
+	'aes-256-cfb',
+	'aes-128-ctr',
+	'aes-192-ctr',
+	'aes-256-ctr',
+	'bf-cfb',
+	'camellia-128-cfb',
+	'camellia-192-cfb',
+	'camellia-256-cfb',
+	'salsa20',
+	'chacha20',
+	'chacha20-ietf',
+];
+
+function ucival_to_bool(val) {
+	return val === 'true' || val === '1' || val === 'yes' || val === 'on';
+}
+
+return L.Class.extend({
+	values_actions: function(o) {
+		o.value('bypass');
+		o.value('forward');
+		if (o.option !== 'dst_default') {
+			o.value('checkdst');
+		}
+	},
+	values_redir: function(o, xmode) {
+		uci.sections('shadowsocks-libev', 'ss_redir', function(sdata) {
+			var disabled = ucival_to_bool(sdata['disabled']),
+				sname = sdata['.name'],
+				mode = sdata['mode'] || 'tcp_only';
+			if (!disabled && mode.indexOf(xmode) !== -1) {
+				o.value(sname, sname + ' - ' + mode);
+			}
+		});
+		o.value('', '<unset>');
+		o.default = '';
+	},
+	values_serverlist: function(o) {
+		uci.sections('shadowsocks-libev', 'server', function(sdata) {
+			var sname = sdata['.name'],
+				server = sdata['server'],
+				server_port = sdata['server_port'];
+			if (server && server_port) {
+				var disabled = ucival_to_bool(sdata['.disabled']) ? ' - disabled' : '',
+					desc = '%s - %s:%s%s'.format(sname, server, server_port, disabled);
+				o.value(sname, desc);
+			}
+		});
+	},
+	values_ipaddr: function(o, netDevs) {
+		netDevs.forEach(function(v) {
+			v.getIPAddrs().forEach(function(a) {
+				var host = a.split('/')[0];
+				o.value(host, '%s (%s)'.format(host, v.getShortName()));
+			});
+		});
+	},
+	options_client: function(s, tab, netDevs) {
+		var o = s.taboption(tab, form.ListValue, 'server', _('Remote server'));
+		this.values_serverlist(o);
+		o = s.taboption(tab, form.Value, 'local_address', _('Local address'));
+		o.datatype = 'ipaddr';
+		o.placeholder = '0.0.0.0';
+		this.values_ipaddr(o, netDevs);
+		o = s.taboption(tab, form.Value, 'local_port', _('Local port'));
+		o.datatype = 'port';
+	},
+	options_server: function(s, opts) {
+		var o, optfunc,
+			tab = opts && opts.tab || null;
+
+		if (!tab) {
+			optfunc = function(/* ... */) {
+				var o = s.option.apply(s, arguments);
+				o.editable = true;
+				return o;
+			};
+		} else {
+			optfunc = function(/* ... */) {
+				var o = s.taboption.apply(s, L.varargs(arguments, 0, tab));
+				o.editable = true;
+				return o;
+			};
+		}
+
+		o = optfunc(form.Value, 'server', _('Server'));
+		o.datatype = 'host';
+		o.size = 16;
+
+		o = optfunc(form.Value, 'server_port', _('Server port'));
+		o.datatype = 'port';
+		o.size = 5;
+
+		o = optfunc(form.ListValue, 'method', _('Method'));
+		methods.forEach(function(m) {
+			o.value(m);
+		});
+
+		o = optfunc(form.Value, 'password', _('Password'));
+		o.password = true;
+		o.size = 12;
+
+		o = optfunc(form.Value, 'key', _('Key (base64)'));
+		o.datatype = 'base64';
+		o.password = true;
+		o.size = 12;
+		o.modalonly = true;;
+
+		optfunc(form.Value, 'plugin', _('Plugin')).modalonly = true;
+
+		optfunc(form.Value, 'plugin_opts', _('Plugin Options')).modalonly = true;
+	},
+	options_common: function(s, tab) {
+		var o = s.taboption(tab, form.ListValue, 'mode', _('Mode of operation'));
+		modes.forEach(function(m) {
+			o.value(m);
+		});
+		o.default = 'tcp_and_udp';
+		o = s.taboption(tab, form.Value, 'mtu', _('MTU'));
+		o.datatype = 'uinteger';
+		o = s.taboption(tab, form.Value, 'timeout', _('Timeout (sec)'));
+		o.datatype = 'uinteger';
+		s.taboption(tab, form.Value, 'user', _('Run as'));
+
+		s.taboption(tab, form.Flag, 'verbose', _('Verbose'));
+		s.taboption(tab, form.Flag, 'ipv6_first', _('IPv6 First'), _('Prefer IPv6 addresses when resolving names'));
+		s.taboption(tab, form.Flag, 'fast_open', _('Enable TCP Fast Open'));
+		s.taboption(tab, form.Flag, 'no_delay', _('Enable TCP_NODELAY'));
+		s.taboption(tab, form.Flag, 'reuse_port', _('Enable SO_REUSEPORT'));
+	},
+	ucival_to_bool: function(val) {
+		return ucival_to_bool(val);
+	},
+	cfgvalue_overview: function(sdata) {
+		var stype = sdata['.type'],
+			lines = [];
+
+		if (stype === 'ss_server') {
+			this.cfgvalue_overview_(sdata, lines, names_options_server);
+			this.cfgvalue_overview_(sdata, lines, names_options_common);
+			this.cfgvalue_overview_(sdata, lines, ['bind_address']);
+		} else if (stype === 'ss_local' || stype === 'ss_redir' || stype === 'ss_tunnel') {
+			this.cfgvalue_overview_(sdata, lines, names_options_client);
+			if (stype === 'ss_tunnel') {
+				this.cfgvalue_overview_(sdata, lines, ['tunnel_address']);
+			}
+			this.cfgvalue_overview_(sdata, lines, names_options_common);
+		} else {
+			return [];
+		}
+
+		return lines;
+	},
+	cfgvalue_overview_: function(sdata, lines, names) {
+		names.forEach(function(n) {
+			var v = sdata[n];
+			if (v) {
+				if (n === 'key' || n === 'password') {
+					v = _('<hidden>');
+				}
+				var fv = E('var', [v]);
+				if (sdata['.type'] !== 'ss_server' && n === 'server') {
+					fv = E('a', {
+						class: 'label',
+						href: L.url('admin/services/shadowsocks-libev/servers') + '#edit=' + v,
+						target: '_blank',
+						rel: 'noopener'
+					}, fv);
+				}
+				lines.push(n + ': ', fv, E('br'));
+			}
+		});
+	},
+	option_install_package: function(s, tab) {
+		var bin = s.sectiontype.replace('_', '-'),
+			opkg_package = 'shadowsocks-libev-' + bin, o;
+		if (tab) {
+			o = s.taboption(tab, form.Button, '_install');
+		} else {
+			o = s.option(form.Button, '_install');
+		}
+		o.title      = _('Package is not installed');
+		o.inputtitle = _('Install package ' + opkg_package);
+		o.inputstyle = 'apply';
+		o.onclick = function() {
+			window.open(L.url('admin/system/opkg') +
+				'?query=' + opkg_package, '_blank', 'noopener');
+		};
+	}
+});
diff --git a/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/instances.js b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/instances.js
new file mode 100644
index 0000000000..27a2b950c2
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/instances.js
@@ -0,0 +1,162 @@
+'use strict';
+'require form';
+'require uci';
+'require fs';
+'require network';
+'require rpc';
+'require shadowsocks-libev as ss';
+
+var conf = 'shadowsocks-libev';
+var cfgtypes = ['ss_local', 'ss_redir', 'ss_server', 'ss_tunnel'];
+
+var callServiceList = rpc.declare({
+	object: 'service',
+	method: 'list',
+	params: [ 'name' ],
+	expect: { '': {} }
+});
+
+return L.view.extend({
+	render: function(stats) {
+		var m, s, o;
+
+		m = new form.Map(conf,
+			_('Local Instances'),
+			_('Instances of shadowsocks-libev components, e.g. ss-local, \
+			   ss-redir, ss-tunnel, ss-server, etc.  To enable an instance it \
+			   is required to enable both the instance itself and the remote \
+			   server it refers to.'));
+
+		s = m.section(form.GridSection);
+		s.addremove = true;
+		s.cfgsections = function() {
+			return this.map.data.sections(this.map.config)
+				.filter(function(s) { return cfgtypes.indexOf(s['.type']) !== -1; })
+				.map(function(s) { return s['.name']; });
+		};
+		s.sectiontitle = function(section_id) {
+			var s = uci.get(conf, section_id);
+			return (s ? s['.type'] + '.' : '') + section_id;
+		};
+		s.renderSectionAdd = function(extra_class) {
+			var el = form.GridSection.prototype.renderSectionAdd.apply(this, arguments),
+				optionEl = [E('option', { value: '_dummy' }, [_('-- instance type --')])];
+			cfgtypes.forEach(function(t) {
+				optionEl.push(E('option', { value: t }, [t.replace('_', '-')]));
+			});
+			var selectEl = E('select', {
+				class: 'cbi-input-select',
+				change: function(ev) {
+					ev.target.parentElement.nextElementSibling.nextElementSibling
+						.toggleAttribute('disabled', ev.target.value === '_dummy');
+				}
+			}, optionEl);
+			el.lastElementChild.setAttribute('disabled', '');
+			el.prepend(E('div', {}, selectEl));
+			return el;
+		};
+		s.handleAdd = function(ev, name) {
+			var selectEl = ev.target.parentElement.firstElementChild.firstElementChild,
+				type = selectEl.value;
+			this.sectiontype = type;
+			var promise = form.GridSection.prototype.handleAdd.apply(this, arguments);
+			this.sectiontype = undefined;
+			return promise;
+		};
+		s.addModalOptions = function(s, section_id, ev) {
+			var sdata = uci.get(conf, section_id),
+				stype = sdata ? sdata['.type'] : null;
+			if (stype) {
+				s.sectiontype = stype;
+				return Promise.all([
+					L.resolveDefault(fs.stat('/usr/bin/' + stype.replace('_', '-')), null),
+					network.getDevices()
+				]).then(L.bind(function(res) {
+					s.tab('general', _('General Settings'));
+					s.tab('advanced', _('Advanced Settings'));
+					s.taboption('general', form.Flag, 'disabled', _('Disable'));
+					if (!res[0]) {
+						ss.option_install_package(s, 'general');
+					}
+					ss.options_common(s, 'advanced');
+
+					if (stype === 'ss_server') {
+						ss.options_server(s, { tab: 'general' });
+						o = s.taboption('general', form.Value, 'bind_address',
+							_('Bind address'),
+							_('The address ss-server will initiate connection from'));
+						o.datatype = 'ipaddr';
+						o.placeholder = '0.0.0.0';
+						ss.values_ipaddr(o, res[1]);
+					} else {
+						ss.options_client(s, 'general', res[1]);
+						if (stype === 'ss_tunnel') {
+							o = s.taboption('general', form.Value, 'tunnel_address',
+								_('Tunnel address'),
+								_('The address ss-tunnel will forward traffic to'));
+							o.datatype = 'hostport';
+						}
+					}
+				}, this));
+			}
+		};
+
+		o = s.option(form.DummyValue, 'overview', _('Overview'));
+		o.modalonly = false;
+		o.editable = true;
+		o.rawhtml = true;
+		o.renderWidget = function(section_id, option_index, cfgvalue) {
+			var sdata = uci.get(conf, section_id);
+			if (sdata) {
+				return form.DummyValue.prototype.renderWidget.call(this, section_id, option_index, ss.cfgvalue_overview(sdata));
+			}
+			return null;
+		};
+
+		o = s.option(form.DummyValue, 'running', _('Running'));
+		o.modalonly = false;
+		o.editable = true;
+		o.default = '';
+
+		o = s.option(form.Button, 'disabled', _('Enable/Disable'));
+		o.modalonly = false;
+		o.editable = true;
+		o.inputtitle = function(section_id) {
+			var s = uci.get(conf, section_id);
+			if (ss.ucival_to_bool(s['disabled'])) {
+				this.inputstyle = 'reset';
+				return _('Disabled');
+			}
+			this.inputstyle = 'save';
+			return _('Enabled');
+		}
+		o.onclick = function(ev) {
+			var inputEl = ev.target.parentElement.nextElementSibling;
+			inputEl.value = ss.ucival_to_bool(inputEl.value) ? '0' : '1';
+			return this.map.save();
+		}
+
+		return m.render().finally(function() {
+			L.Poll.add(function() {
+				return L.resolveDefault(callServiceList(conf), {})
+				.then(function(res) {
+					var instances = null;
+					try {
+						instances = res[conf]['instances'];
+					} catch (e) {}
+					if (!instances) return;
+					uci.sections(conf)
+					.filter(function(s) { return cfgtypes.indexOf(s['.type']) !== -1; })
+					.forEach(function(s) {
+						var el = document.getElementById('cbi-shadowsocks-libev-' + s['.name'] + '-running');
+						if (el) {
+							var name = s['.type'] + '.' + s['.name'],
+								running = instances.hasOwnProperty(name)? instances[name].running : false;
+							el.innerText = running ? 'yes' : 'no';
+						}
+					});
+				});
+			});
+		});
+	},
+});
diff --git a/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/rules.js b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/rules.js
new file mode 100644
index 0000000000..798237adbd
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/rules.js
@@ -0,0 +1,123 @@
+'use strict';
+'require uci';
+'require fs';
+'require form';
+'require tools.widgets as widgets';
+'require shadowsocks-libev as ss';
+
+var conf = 'shadowsocks-libev';
+
+function src_dst_option(s /*, ... */) {
+	var o = s.taboption.apply(s, L.varargs(arguments, 1));
+	o.datatype = 'or(ipaddr,cidr)';
+}
+
+return L.view.extend({
+	load: function() {
+		return Promise.all([
+			L.resolveDefault(fs.stat('/usr/lib/iptables/libxt_recent.so'), {}),
+			L.resolveDefault(fs.stat('/usr/bin/ss-rules'), null),
+			uci.load(conf).then(function() {
+				if (!uci.get_first(conf, 'ss_rules')) {
+					uci.set(conf, uci.add(conf, 'ss_rules', 'ss_rules'), 'disabled', '1');
+				}
+			})
+		]);
+	},
+	render: function(stats) {
+		var m, s, o;
+
+		m = new form.Map(conf, _('Redir Rules'),
+			_('On this page you can configure how traffics are to be \
+				forwarded to ss-redir instances. \
+				If enabled, packets will first have their src ip addresses checked \
+				against <em>Src ip/net bypass</em>, <em>Src ip/net forward</em>, \
+				<em>Src ip/net checkdst</em> and if none matches <em>Src default</em> \
+				will give the default action to be taken. \
+				If the prior check results in action <em>checkdst</em>, packets will continue \
+				to have their dst addresses checked.'));
+
+		s = m.section(form.NamedSection, 'ss_rules', 'ss_rules');
+		s.tab('general', _('General Settings'));
+		s.tab('src', _('Source Settings'));
+		s.tab('dst', _('Destination Settings'));
+
+		s.taboption('general', form.Flag, 'disabled', _('Disable'));
+		if (!stats[1]) {
+			ss.option_install_package(s, 'general');
+		}
+
+		o = s.taboption('general', form.ListValue, 'redir_tcp',
+			_('ss-redir for TCP'));
+		ss.values_redir(o, 'tcp');
+		o = s.taboption('general', form.ListValue, 'redir_udp',
+			_('ss-redir for UDP'));
+		ss.values_redir(o, 'udp');
+
+		o = s.taboption('general', form.ListValue, 'local_default',
+			_('Local-out default'),
+			_('Default action for locally generated TCP packets'));
+		ss.values_actions(o);
+		o = s.taboption('general', widgets.DeviceSelect, 'ifnames',
+			_('Ingress interfaces'),
+			_('Only apply rules on packets from these network interfaces'));
+		o.multiple = true;
+		o.noaliases = true;
+		o.noinactive = true;
+		s.taboption('general', form.Value, 'ipt_args',
+			_('Extra arguments'),
+			_('Passes additional arguments to iptables. Use with care!'));
+
+		src_dst_option(s, 'src', form.DynamicList, 'src_ips_bypass',
+			_('Src ip/net bypass'),
+			_('Bypass ss-redir for packets with src address in this list'));
+		src_dst_option(s, 'src', form.DynamicList, 'src_ips_forward',
+			_('Src ip/net forward'),
+			_('Forward through ss-redir for packets with src address in this list'));
+		src_dst_option(s, 'src', form.DynamicList, 'src_ips_checkdst',
+			_('Src ip/net checkdst'),
+			_('Continue to have dst address checked for packets with src address in this list'));
+		o = s.taboption('src', form.ListValue, 'src_default',
+			_('Src default'),
+			_('Default action for packets whose src address do not match any of the src ip/net list'));
+		ss.values_actions(o);
+
+		src_dst_option(s, 'dst', form.DynamicList, 'dst_ips_bypass',
+			_('Dst ip/net bypass'),
+			_('Bypass ss-redir for packets with dst address in this list'));
+		src_dst_option(s, 'dst', form.DynamicList, 'dst_ips_forward',
+			_('Dst ip/net forward'),
+			_('Forward through ss-redir for packets with dst address in this list'));
+
+		var dir = '/etc/shadowsocks-libev';
+		o = s.taboption('dst', form.FileUpload, 'dst_ips_bypass_file',
+			_('Dst ip/net bypass file'),
+			_('File containing ip/net for the purposes as with <em>Dst ip/net bypass</em>'));
+		o.root_directory = dir;
+		o = s.taboption('dst', form.FileUpload, 'dst_ips_forward_file',
+			_('Dst ip/net forward file'),
+			_('File containing ip/net for the purposes as with <em>Dst ip/net forward</em>'));
+		o.root_directory = dir;
+		o = s.taboption('dst', form.ListValue, 'dst_default',
+			_('Dst default'),
+			_('Default action for packets whose dst address do not match any of the dst ip list'));
+		ss.values_actions(o);
+
+		if (stats[0].type === 'file') {
+			o = s.taboption('dst', form.Flag, 'dst_forward_recentrst');
+		} else {
+			uci.set(conf, 'ss_rules', 'dst_forward_recentrst', '0');
+			o = s.taboption('dst', form.Button, '_install');
+			o.inputtitle = _('Install package iptables-mod-conntrack-extra');
+			o.inputstyle = 'apply';
+			o.onclick = function() {
+				window.open(L.url('admin/system/opkg') +
+					'?query=iptables-mod-conntrack-extra', '_blank', 'noopener');
+			}
+		}
+		o.title = _('Forward recentrst');
+		o.description = _('Forward those packets whose dst have recently sent to us multiple tcp-rst');
+
+		return m.render();
+	},
+});
diff --git a/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/servers.js b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/servers.js
new file mode 100644
index 0000000000..d46bfb0aa7
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/htdocs/luci-static/resources/view/shadowsocks-libev/servers.js
@@ -0,0 +1,37 @@
+'use strict';
+'require form';
+'require shadowsocks-libev as ss';
+
+function startsWith(str, search) {
+	return str.substring(0, search.length) === search;
+}
+
+return L.view.extend({
+	render: function() {
+		var m, s, o;
+
+		m = new form.Map('shadowsocks-libev', _('Remote Servers'),
+			_('Definition of remote shadowsocks servers.  \
+				Disable any of them will also disable instances referring to it.'));
+
+		s = m.section(form.GridSection, 'server');
+		s.addremove = true;
+
+		o = s.option(form.Flag, 'disabled', _('Disable'));
+		o.editable = true;
+
+		ss.options_server(s);
+
+		return m.render();
+	},
+	addFooter: function() {
+		var p = '#edit=';
+		if (startsWith(location.hash, p)) {
+			var section_id = location.hash.substring(p.length);
+			var editBtn = document.querySelector('#cbi-shadowsocks-libev-' + section_id + ' button.cbi-button-edit');
+			if (editBtn)
+				editBtn.click();
+		}
+		return this.super('addFooter', arguments);
+	}
+});