390 lines
13 KiB
Ucode
390 lines
13 KiB
Ucode
#!/usr/bin/env ucode
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let common = require("core.common");
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let runtime_constants = require("singbox.constants");
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let as_string = common.as_string;
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let option = common.option;
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let list_option = common.list_option;
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let bool_option = common.bool_option;
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let int_option = common.int_option;
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let array_or_empty = common.array_or_empty;
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function safe_filename(value) {
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value = as_string(value);
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let result = "";
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for (let i = 0; i < length(value); i++) {
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let ch = substr(value, i, 1);
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result += match(ch, /^[A-Za-z0-9_.-]$/) ? ch : "_";
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}
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return result;
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}
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function string_to_hex(value) {
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value = as_string(value);
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let result = "";
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for (let i = 0; i < length(value); i++)
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result += sprintf("%02x", ord(substr(value, i, 1)));
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return result;
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}
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function mtproto_secret(section) {
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let secret = option(section, "mtproto_secret", "");
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let faketls = option(section, "mtproto_faketls", "google.com");
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if (substr(lc(secret), 0, 2) == "ee")
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return secret;
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return "ee" + secret + string_to_hex(faketls);
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}
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function users(section, protocol) {
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let name = option(section, protocol == "socks" ? "server_username" : "label", section[".name"]);
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if (name == "")
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name = section[".name"];
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if (protocol == "vless") {
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let user = { uuid: option(section, "server_uuid", "") };
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if (name != "")
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user.name = name;
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let flow = option(section, "vless_flow", "");
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if (flow != "" && flow != "none")
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user.flow = flow;
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return [ user ];
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}
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if (protocol == "vmess") {
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let user = {
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uuid: option(section, "server_uuid", ""),
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alterId: int_option(section, "vmess_alter_id", "0")
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};
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if (name != "")
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user.name = name;
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return [ user ];
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}
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if (protocol == "trojan" || protocol == "hysteria2") {
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let user = { password: option(section, "server_password", "") };
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if (name != "")
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user.name = name;
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return [ user ];
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}
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if (protocol == "socks") {
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return [{
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username: name != "" ? name : "user",
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password: option(section, "server_password", "")
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}];
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}
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if (protocol == "mtproto") {
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let user = { secret: mtproto_secret(section) };
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if (name != "")
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user.name = name;
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return [ user ];
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}
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return [];
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}
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function effective_security(section, protocol) {
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let security = option(section, "security", "");
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if (security == "") {
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if (protocol == "vless")
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security = "reality";
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else if (protocol == "trojan" || protocol == "hysteria2")
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security = "tls";
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else
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security = "none";
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}
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if (protocol == "shadowsocks" || protocol == "socks" || protocol == "mtproto" ||
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protocol == "tailscale" || protocol == "json_inbound")
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return "none";
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if (protocol == "hysteria2")
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return "tls";
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if ((protocol == "vmess" || protocol == "trojan") && security == "reality")
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return protocol == "trojan" ? "tls" : "none";
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return security;
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}
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function maybe_string(object, key, value) {
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value = as_string(value);
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if (value != "")
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object[key] = value;
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}
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function apply_tls(inbound, section, protocol) {
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let security = effective_security(section, protocol);
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if (security == "" || security == "none")
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return;
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let tls = { enabled: true };
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maybe_string(tls, "server_name", option(section, "tls_server_name", ""));
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let alpn = list_option(section, "tls_alpn");
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if (length(alpn) > 0)
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tls.alpn = alpn;
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if (security == "tls") {
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maybe_string(tls, "certificate_path", option(section, "tls_certificate_path", ""));
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maybe_string(tls, "key_path", option(section, "tls_key_path", ""));
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}
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else if (security == "reality") {
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let reality = {
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enabled: true,
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handshake: {
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server: option(section, "reality_handshake_server", "www.microsoft.com"),
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server_port: int_option(section, "reality_handshake_server_port", "443")
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},
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private_key: option(section, "reality_private_key", "")
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};
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let short_id = list_option(section, "reality_short_id");
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if (length(short_id) > 0)
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reality.short_id = short_id;
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maybe_string(reality, "max_time_difference", option(section, "reality_max_time_difference", "1m"));
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tls.reality = reality;
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}
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inbound.tls = tls;
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}
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function apply_transport(inbound, section, protocol) {
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if (protocol != "vless" && protocol != "vmess" && protocol != "trojan")
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return;
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let transport_type = option(section, "transport", "tcp");
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if (transport_type == "" || transport_type == "tcp" || transport_type == "raw")
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return;
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let transport = { type: transport_type };
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let path = option(section, "transport_path", "");
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let host = option(section, "transport_host", "");
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if (transport_type == "ws") {
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maybe_string(transport, "path", path);
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if (host != "")
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transport.headers = { Host: host };
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}
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else if (transport_type == "grpc") {
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maybe_string(transport, "service_name", option(section, "transport_service_name", ""));
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}
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else if (transport_type == "http") {
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maybe_string(transport, "path", path);
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let hosts = list_option(section, "transport_hosts");
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if (length(hosts) > 0)
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transport.host = hosts;
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}
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else if (transport_type == "httpupgrade") {
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maybe_string(transport, "path", path);
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maybe_string(transport, "host", host);
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}
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else if (transport_type == "xhttp") {
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transport.mode = option(section, "transport_xhttp_mode", "auto");
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transport.path = path != "" ? path : "/";
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maybe_string(transport, "host", host);
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transport.headers = {};
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transport.x_padding_bytes = "100-1000";
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transport.no_sse_header = false;
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transport.sc_max_each_post_bytes = 1000000;
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transport.sc_max_buffered_posts = 30;
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transport.sc_stream_up_server_secs = "20-80";
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transport.server_max_header_bytes = 8192;
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}
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else {
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return;
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}
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inbound.transport = transport;
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}
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function add_standard_inbound(config, section, protocol, tag_name) {
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let inbound = {
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type: protocol,
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tag: tag_name,
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listen: option(section, "listen", "0.0.0.0"),
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listen_port: int_option(section, "listen_port", "443")
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};
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if (protocol == "shadowsocks") {
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inbound.method = option(section, "shadowsocks_method", "aes-128-gcm");
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inbound.password = option(section, "server_password", "");
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}
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else if (protocol == "socks") {
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if (bool_option(section, "socks_auth_enabled", true)) {
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let server_users = users(section, protocol);
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if (length(server_users) > 0)
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inbound.users = server_users;
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}
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}
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else if (protocol == "hysteria2") {
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inbound.users = users(section, protocol);
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let up_mbps = option(section, "hysteria2_up_mbps", "");
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let down_mbps = option(section, "hysteria2_down_mbps", "");
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if (up_mbps != "")
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inbound.up_mbps = int(up_mbps, 10);
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if (down_mbps != "")
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inbound.down_mbps = int(down_mbps, 10);
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let obfs_type = option(section, "hysteria2_obfs_type", "");
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let obfs_password = option(section, "hysteria2_obfs_password", "");
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if (obfs_type != "" && obfs_password != "")
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inbound.obfs = { type: obfs_type, password: obfs_password };
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}
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else if (protocol == "mtproto") {
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inbound.type = "mtproxy";
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inbound.users = users(section, protocol);
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let concurrency = option(section, "mtproto_concurrency", "");
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if (concurrency != "")
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inbound.concurrency = int(concurrency, 10);
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let fronting_port = option(section, "mtproto_domain_fronting_port", "443");
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if (fronting_port != "")
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inbound.domain_fronting_port = int(fronting_port, 10);
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maybe_string(inbound, "domain_fronting_ip", option(section, "mtproto_domain_fronting_ip", ""));
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if (bool_option(section, "mtproto_domain_fronting_proxy_protocol", false))
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inbound.domain_fronting_proxy_protocol = true;
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maybe_string(inbound, "prefer_ip", option(section, "mtproto_prefer_ip", "prefer-ipv4"));
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if (bool_option(section, "mtproto_auto_update", false))
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inbound.auto_update = true;
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if (bool_option(section, "mtproto_allow_fallback_on_unknown_dc", false))
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inbound.allow_fallback_on_unknown_dc = true;
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maybe_string(inbound, "tolerate_time_skewness", option(section, "mtproto_tolerate_time_skewness", "3s"));
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maybe_string(inbound, "idle_timeout", option(section, "mtproto_idle_timeout", "5m"));
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maybe_string(inbound, "handshake_timeout", option(section, "mtproto_handshake_timeout", "10s"));
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}
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else {
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inbound.users = users(section, protocol);
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}
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apply_tls(inbound, section, protocol);
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apply_transport(inbound, section, protocol);
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push(config.inbounds, inbound);
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}
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function add_json_inbound(config, section, tag_name) {
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let inbound = {};
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try {
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inbound = json(option(section, "inbound_json", ""));
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}
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catch (e) {
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inbound = {};
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}
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if (type(inbound) != "object")
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inbound = {};
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inbound.tag = tag_name;
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push(config.inbounds, inbound);
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}
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function add_tailscale_endpoint(config, section, tag_name) {
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let section_name = section[".name"];
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let endpoint = {
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type: "tailscale",
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tag: tag_name,
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state_directory: "/etc/tachyon/tailscale/" + safe_filename(section_name),
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auth_key: option(section, "tailscale_auth_key", ""),
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control_url: option(section, "tailscale_control_url", "https://controlplane.tailscale.com"),
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hostname: option(section, "tailscale_hostname", "tachyon-" + safe_filename(section_name))
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};
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if (bool_option(section, "tailscale_accept_routes", false))
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endpoint.accept_routes = true;
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let advertise_routes = list_option(section, "tailscale_advertise_routes");
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if (length(advertise_routes) > 0)
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endpoint.advertise_routes = advertise_routes;
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if (bool_option(section, "tailscale_advertise_exit_node", false))
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endpoint.advertise_exit_node = true;
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push(config.endpoints, endpoint);
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}
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function add_dns_bypass(config, section) {
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if (option(section, "protocol", "vless") != "tailscale")
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return;
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let section_name = section[".name"];
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let inbound = runtime_constants.server_inbound_tag(section_name);
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let dns_tag = runtime_constants.tailscale_dns_server_tag(section_name);
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let rule_tag = "tailscale-server-dns-" + safe_filename(section_name);
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push(config.dns.servers, {
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type: "tailscale",
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tag: dns_tag,
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endpoint: inbound,
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accept_default_resolvers: true
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});
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push(config.dns.rules, {
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action: "route",
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server: dns_tag,
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inbound,
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__service_tag: rule_tag
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});
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}
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function add_server(config, section) {
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let section_name = section[".name"];
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let protocol = option(section, "protocol", "vless");
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let tag_name = runtime_constants.server_inbound_tag(section_name);
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if (protocol == "tailscale")
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add_tailscale_endpoint(config, section, tag_name);
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else if (protocol == "json_inbound")
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add_json_inbound(config, section, tag_name);
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else
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add_standard_inbound(config, section, protocol, tag_name);
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add_dns_bypass(config, section);
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}
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function add_sniff_rule(config, section) {
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let rules = array_or_empty(config.route.rules);
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let rule = {
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action: "sniff",
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inbound: runtime_constants.server_inbound_tag(section[".name"])
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};
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let insert_at = 0;
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while (insert_at < length(rules) && type(rules[insert_at]) == "object" && rules[insert_at].action == "sniff")
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insert_at++;
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let result = [];
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for (let i = 0; i < insert_at; i++)
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push(result, rules[i]);
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push(result, rule);
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for (let i = insert_at; i < length(rules); i++)
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push(result, rules[i]);
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config.route.rules = result;
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}
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function clone(value) {
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try {
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return json(sprintf("%J", value));
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}
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catch (e) {
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return null;
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}
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}
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function value_contains(value, item) {
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if (type(value) == "array") {
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for (let entry in value)
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if (entry == item)
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return true;
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return false;
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}
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return value == item;
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}
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function clone_rules_for_inbound(config, source_inbound, target_inbound, skip_domain) {
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let cloned_rules = [];
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for (let rule in array_or_empty(config.route.rules)) {
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if (type(rule) != "object")
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continue;
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if (rule.action != "route" && rule.action != "reject")
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continue;
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if (!value_contains(rule.inbound, source_inbound))
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continue;
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if (skip_domain != "" && value_contains(rule.domain, skip_domain))
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continue;
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if (rule.source_ip_cidr != null)
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continue;
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let cloned = clone(rule);
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if (type(cloned) != "object")
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continue;
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cloned.inbound = target_inbound;
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push(cloned_rules, cloned);
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}
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for (let cloned_rule in cloned_rules)
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push(config.route.rules, cloned_rule);
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}
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return {
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add_server,
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add_sniff_rule,
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clone_rules_for_inbound
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}; |