add -w option and timeout config

This commit is contained in:
wyhaya
2019-10-15 13:23:50 +08:00
parent 8983b943cf
commit 060da0cd5d
8 changed files with 307 additions and 202 deletions

170
Cargo.lock generated
View File

@@ -27,15 +27,28 @@ dependencies = [
]
[[package]]
name = "async-std"
version = "0.99.4"
name = "async-macros"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@@ -133,6 +146,28 @@ dependencies = [
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]
[[package]]
name = "crossbeam-deque"
version = "0.7.1"
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]
[[package]]
name = "crossbeam-epoch"
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source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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[[package]]
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@@ -201,75 +236,32 @@ name = "fuchsia-zircon-sys"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
name = "futures-util-preview"
version = "0.3.0-alpha.18"
version = "0.3.0-alpha.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -292,6 +284,14 @@ dependencies = [
"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
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[[package]]
name = "lazy_static"
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@@ -315,6 +315,14 @@ name = "memchr"
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source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
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@@ -478,6 +486,32 @@ name = "rustc-demangle"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -529,13 +563,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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View File

@@ -1,6 +1,6 @@
[package]
name = "updns"
version = "0.0.4"
version = "0.0.5"
edition = "2018"
authors = ["wyhaya <wyhaya@gmail.com>"]
@@ -19,9 +19,8 @@ keywords = [
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async-std = "0.99.4"
async-std = "0.99.9"
dirs = "2.0.2"
lazy_static = "1.4.0"
log = {version = "0.4.8", features = ["release_max_level_info"]}
regex = "1.3.1"
time = "0.1.42"

View File

@@ -61,6 +61,7 @@ Command:
Option:
-c Specify a config file
-w Check the interval of the configuration file
```
## Config
@@ -73,10 +74,12 @@ You can update the config file at any time, updns will listen for file changes
```ini
bind 0.0.0.0:53 # Binding address
proxy 8.8.8.8:53 # Proxy address
timeout 2000 # Proxy timeout (ms)
# Domain matching
google.com 1.1.1.1
^(\w+.)?go+gle.com$ 2.2.2.2
^\w+.bing.com$ 2.2.2.2
github.com ::
# Import from other file
import /other/hosts

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@@ -11,6 +11,7 @@ lazy_static! {
static ref REG_IGNORE: Regex = Regex::new(r#"^\s*(#.*)?$"#).unwrap();
static ref REG_BIND: Regex = Regex::new(r#"^\s*bind\s+(?P<val>[^\s#]+)"#).unwrap();
static ref REG_PROXY: Regex = Regex::new(r#"^\s*proxy\s+(?P<val>[^\s#]+)"#).unwrap();
static ref REG_TIMEOUT: Regex = Regex::new(r#"^\s*timeout\s+(?P<val>[^\s#]+)"#).unwrap();
// todo
// The path will also contain '#' and ' '
static ref REG_IMPORT: Regex = Regex::new(r#"^\s*import\s+(?P<val>(.*))$"#).unwrap();
@@ -67,18 +68,11 @@ fn cap_ip_addr(text: &str) -> Option<Result<(Regex, IpAddr), InvalidType>> {
return Some(Ok((reg, ip)));
}
#[derive(Debug)]
pub struct Config {
path: PathBuf,
file: File,
content: String,
}
#[derive(Debug)]
pub struct Invalid {
pub line: usize,
pub source: String,
pub err: InvalidType,
pub kind: InvalidType,
}
#[derive(Debug)]
@@ -86,9 +80,37 @@ pub enum InvalidType {
Regex,
SocketAddr,
IpAddr,
Timeout,
Other,
}
impl InvalidType {
pub fn as_str(&self) -> &str {
match self {
InvalidType::SocketAddr => "Cannot parse socket addr",
InvalidType::IpAddr => "Cannot parse ip addr",
InvalidType::Regex => "Cannot parse Regular expression",
InvalidType::Timeout => "Cannot parse timeout",
InvalidType::Other => "Invalid line",
}
}
}
#[derive(Debug)]
pub struct ParseConfig {
pub bind: Vec<SocketAddr>,
pub proxy: Vec<SocketAddr>,
pub hosts: Hosts,
pub timeout: Option<u64>,
pub invalid: Vec<Invalid>,
}
#[derive(Debug)]
pub struct Config {
path: PathBuf,
file: File,
}
impl Config {
pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Config> {
let path = path.as_ref();
@@ -96,37 +118,39 @@ impl Config {
if let Some(dir) = path.parent() {
fs::create_dir_all(dir)?;
}
let mut file = fs::OpenOptions::new()
Ok(Config {
file: fs::OpenOptions::new()
.read(true)
.append(true)
.create(true)
.open(path)?;
let mut content = String::new();
file.read_to_string(&mut content)?;
Ok(Config {
file,
content,
.open(path)?,
path: path.to_path_buf(),
})
}
pub fn add(&mut self, domain: &str, ip: &str) -> std::io::Result<()> {
if self.content.ends_with("\n") {
fn read_to_string(&mut self) -> io::Result<String> {
let mut content = String::new();
self.file.read_to_string(&mut content)?;
Ok(content)
}
pub fn add(&mut self, domain: &str, ip: &str) -> io::Result<()> {
if self.read_to_string()?.ends_with("\n") {
writeln!(self.file, "{} {}", domain, ip)
} else {
writeln!(self.file, "\n{} {}", domain, ip)
}
}
pub fn parse(&mut self) -> io::Result<(Vec<SocketAddr>, Vec<SocketAddr>, Hosts, Vec<Invalid>)> {
pub fn parse(&mut self) -> io::Result<ParseConfig> {
let mut hosts = Hosts::new();
let mut binds = Vec::new();
let mut bind = Vec::new();
let mut proxy = Vec::new();
let mut errors = Vec::new();
let mut invalid = Vec::new();
let mut timeout = None;
for (n, line) in self.content.lines().enumerate() {
for (n, line) in self.read_to_string()?.lines().enumerate() {
// ignore
if REG_IGNORE.is_match(&line) {
continue;
@@ -135,12 +159,12 @@ impl Config {
// bind
if let Some(addr) = cap_socket_addr(&REG_BIND, &line) {
match addr {
Ok(addr) => binds.push(addr),
Err(err) => {
errors.push(Invalid {
Ok(addr) => bind.push(addr),
Err(kind) => {
invalid.push(Invalid {
line: n + 1,
source: line.to_string(),
err,
kind,
});
}
}
@@ -151,17 +175,33 @@ impl Config {
if let Some(addr) = cap_socket_addr(&REG_PROXY, &line) {
match addr {
Ok(addr) => proxy.push(addr),
Err(err) => {
errors.push(Invalid {
Err(kind) => {
invalid.push(Invalid {
line: n + 1,
source: line.to_string(),
err,
kind,
});
}
}
continue;
}
// timeout
if let Some(cap) = REG_TIMEOUT.captures(&line) {
if let Some(time) = cap.name("val") {
if let Ok(t) = time.as_str().parse::<u64>() {
timeout = Some(t);
continue;
}
}
invalid.push(Invalid {
line: n + 1,
source: line.to_string(),
kind: InvalidType::Timeout,
});
continue;
}
// import
if let Some(cap) = REG_IMPORT.captures(&line) {
if let Some(m) = cap.name("val") {
@@ -173,11 +213,11 @@ impl Config {
}
}
let (b, p, h, e) = Config::new(p)?.parse()?;
binds.extend(b);
proxy.extend(p);
hosts.extend(h);
errors.extend(e);
let config = Config::new(p)?.parse()?;
bind.extend(config.bind);
proxy.extend(config.proxy);
hosts.extend(config.hosts);
invalid.extend(config.invalid);
} else {
// todo
}
@@ -188,54 +228,60 @@ impl Config {
if let Some(d) = cap_ip_addr(&line) {
match d {
Ok((domain, ip)) => hosts.push(domain, ip),
Err(err) => {
errors.push(Invalid {
Err(kind) => {
invalid.push(Invalid {
line: n + 1,
source: line.to_string(),
err,
kind,
});
}
}
continue;
}
errors.push(Invalid {
invalid.push(Invalid {
line: n + 1,
source: line.to_string(),
err: InvalidType::Other,
kind: InvalidType::Other,
});
}
Ok((binds, proxy, hosts, errors))
Ok(ParseConfig {
bind,
proxy,
hosts,
timeout,
invalid,
})
}
}
#[derive(Debug)]
pub struct Hosts {
list: Vec<(Regex, IpAddr)>,
record: Vec<(Regex, IpAddr)>,
}
impl Hosts {
pub fn new() -> Hosts {
Hosts { list: Vec::new() }
Hosts { record: Vec::new() }
}
fn push(&mut self, domain: Regex, ip: IpAddr) {
self.list.push((domain, ip));
self.record.push((domain, ip));
}
fn extend(&mut self, hosts: Hosts) {
for item in hosts.list {
self.list.push(item);
for item in hosts.record {
self.record.push(item);
}
}
pub fn iter(&mut self) -> Iter<(Regex, IpAddr)> {
self.list.iter()
self.record.iter()
}
pub fn get(&self, domain: &str) -> Option<&IpAddr> {
for (reg, ip) in &self.list {
for (reg, ip) in &self.record {
if reg.is_match(domain) {
return Some(ip);
}

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@@ -1,28 +0,0 @@
use log::{Level, LevelFilter, Metadata, Record, SetLoggerError};
static LOGGER: Logger = Logger;
pub fn init() -> Result<(), SetLoggerError> {
log::set_logger(&LOGGER).map(|()| log::set_max_level(LevelFilter::Trace))
}
struct Logger;
impl log::Log for Logger {
fn enabled(&self, meta: &Metadata) -> bool {
meta.level() != Level::Trace
}
fn log(&self, record: &Record) {
if self.enabled(record.metadata()) {
println!(
"{} {}: {}",
time::now().strftime("[%Y-%m-%d][%H:%M:%S]").unwrap(),
record.level(),
record.args()
);
}
}
fn flush(&self) {}
}

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@@ -3,17 +3,15 @@ extern crate lazy_static;
mod config;
mod lib;
mod logger;
mod watch;
use ace::App;
use async_std::io;
use async_std::net::UdpSocket;
use async_std::task;
use config::{Config, Hosts, Invalid, InvalidType};
use config::{Config, Hosts, Invalid, ParseConfig};
use dirs;
use lib::*;
use log::{error, info, warn};
use regex::Regex;
use std::env;
use std::net::{IpAddr, SocketAddr};
@@ -22,13 +20,18 @@ use std::process::Command;
use std::time::Duration;
use watch::Watch;
const CONFIG_FILE: [&str; 2] = [".updns", "config"];
const DEFAULT_BIND: &str = "0.0.0.0:53";
const DEFAULT_PROXY: [&str; 2] = ["8.8.8.8:53", "1.1.1.1:53"];
const PROXY_TIMEOUT: u64 = 2000;
const WATCH_INTERVAL: u64 = 3000;
const CONFIG_FILE: [&'static str; 2] = [".updns", "config"];
const CONFIG_COMMAND: &'static str = "vim";
const DEFAULT_BIND: &'static str = "0.0.0.0:53";
const DEFAULT_PROXY: [&'static str; 2] = ["8.8.8.8:53", "1.1.1.1:53"];
const DEFAULT_TIMEOUT: u64 = 2000;
static mut PROXY: Vec<SocketAddr> = Vec::new();
static mut HOSTS: Option<Hosts> = None;
static mut TIMEOUT: u64 = DEFAULT_TIMEOUT;
const WATCH_INTERVAL: u64 = 5000;
macro_rules! exit {
($($arg:tt)*) => {
@@ -38,18 +41,37 @@ macro_rules! exit {
}
};
}
macro_rules! error {
($($arg:tt)*) => {
eprint!("{} ERROR ", time::now().strftime("[%Y-%m-%d %H:%M:%S]").unwrap());
eprintln!($($arg)*);
};
}
macro_rules! info {
($($arg:tt)*) => {
print!("{} INFO ", time::now().strftime("[%Y-%m-%d %H:%M:%S]").unwrap());
println!($($arg)*);
};
}
macro_rules! warn {
($($arg:tt)*) => {
print!("{} WARN ", time::now().strftime("[%Y-%m-%d %H:%M:%S]").unwrap());
println!($($arg)*);
};
}
fn main() {
let _ = logger::init();
let cct = format!("Call '{}' to edit the configuration file", CONFIG_COMMAND);
let app = App::new(env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION"))
.cmd("add", "Add a DNS record")
.cmd("rm", "Remove a DNS record")
.cmd("ls", "Print all configured DNS records")
.cmd("config", "Call vim to edit the configuration file")
.cmd("config", cct.as_str())
.cmd("path", "Print related directories")
.cmd("help", "Print help information")
.cmd("version", "Print version information")
.opt("-c", "Specify a config file");
.opt("-c", "Specify a config file")
.opt("-w", "Check the interval of the configuration file");
let config_path = match app.value("-c") {
Some(values) => {
@@ -64,6 +86,20 @@ fn main() {
},
};
// Check profile interval
let watch_interval = match app.value("-w") {
Some(values) => {
if values.is_empty() {
exit!("'-w' value: [ms]");
}
match &values[0].parse::<u64>() {
Ok(t) => *t,
Err(_) => exit!("Cannot resolve '{}' to number", &values[0]),
}
}
None => WATCH_INTERVAL,
};
if let Some(cmd) = app.command() {
match cmd.as_str() {
"add" => {
@@ -103,28 +139,35 @@ fn main() {
}
}
"ls" => {
let (_, _, _, mut hosts) = config_parse(&config_path);
let mut config = config_parse(&config_path);
let mut n = 0;
for (reg, _) in hosts.iter() {
for (reg, _) in config.hosts.iter() {
if reg.as_str().len() > n {
n = reg.as_str().len();
}
}
for (domain, ip) in hosts.iter() {
for (domain, ip) in config.hosts.iter() {
println!("{:domain$} {}", domain.as_str(), ip, domain = n);
}
}
"config" => {
let cmd = Command::new("vim").arg(&config_path).status();
let cmd = Command::new(CONFIG_COMMAND).arg(&config_path).status();
match cmd {
Ok(status) => {
warn!(
"'{}' exits with a non-zero status code: {:?}",
CONFIG_COMMAND, status
);
if status.success() {
config_parse(&config_path);
} else {
warn!("Non-zero state exit\n{:?}", status);
warn!(
"'{}' exits with a non-zero status code: {:?}",
CONFIG_COMMAND, status
);
}
}
Err(err) => exit!("Call vim command failed\n{:?}", err),
Err(err) => exit!("Call '{}' command failed\n{:?}", CONFIG_COMMAND, err),
}
}
"path" => {
@@ -151,32 +194,32 @@ fn main() {
return;
}
let (_, mut binds, proxy, hosts) = config_parse(&config_path);
if binds.is_empty() {
let mut parse = config_parse(&config_path);
if parse.bind.is_empty() {
warn!("Will bind the default address '{}'", DEFAULT_BIND);
binds.push(DEFAULT_BIND.parse().unwrap());
parse.bind.push(DEFAULT_BIND.parse().unwrap());
}
if proxy.is_empty() {
if parse.proxy.is_empty() {
warn!(
"Will use the default proxy address '{}'",
DEFAULT_PROXY.join(", ")
);
}
update_config(proxy, hosts);
update_config(parse.proxy, parse.hosts, parse.timeout);
// Run server
for addr in binds {
for addr in parse.bind {
task::spawn(run_server(addr.clone()));
}
// watch config
task::block_on(watch_config(config_path));
task::block_on(watch_config(config_path, watch_interval));
}
fn ask(tips: &str) -> io::Result<bool> {
fn ask(text: &str) -> io::Result<bool> {
use std::io;
use std::io::Write;
io::stdout().write(tips.as_bytes())?;
io::stdout().write(text.as_bytes())?;
io::stdout().flush()?;
let mut s = String::new();
@@ -185,11 +228,11 @@ fn ask(tips: &str) -> io::Result<bool> {
match s.to_uppercase().as_str() {
"Y\n" => Ok(true),
"N\n" => Ok(false),
_ => Ok(ask(&tips)?),
_ => Ok(ask(&text)?),
}
}
fn update_config(mut proxy: Vec<SocketAddr>, hosts: Hosts) {
fn update_config(mut proxy: Vec<SocketAddr>, hosts: Hosts, timeout: Option<u64>) {
if proxy.is_empty() {
proxy = DEFAULT_PROXY
.iter()
@@ -199,48 +242,48 @@ fn update_config(mut proxy: Vec<SocketAddr>, hosts: Hosts) {
unsafe {
PROXY = proxy;
HOSTS = Some(hosts);
TIMEOUT = match timeout {
Some(t) => t,
None => DEFAULT_TIMEOUT,
};
};
}
fn config_parse(file: &PathBuf) -> (Config, Vec<SocketAddr>, Vec<SocketAddr>, Hosts) {
fn config_parse(file: &PathBuf) -> ParseConfig {
let mut config = match Config::new(file) {
Ok(c) => c,
Err(err) => exit!("Failed to read config file {:?}\n{:?}", file, err),
};
let (binds, proxy, hosts, errors) = match config.parse() {
let parse = match config.parse() {
Ok(d) => d,
Err(err) => exit!("Parsing config file failed\n{:?}", err),
};
output_invalid(errors);
output_invalid(&parse.invalid);
(config, binds, proxy, hosts)
parse
}
fn output_invalid(errors: Vec<Invalid>) {
if !errors.is_empty() {
fn output_invalid(errors: &Vec<Invalid>) {
for invalid in errors {
let msg = match invalid.err {
InvalidType::SocketAddr => "Cannot parse socket addr",
InvalidType::IpAddr => "Cannot parse ip addr",
InvalidType::Regex => "Cannot parse Regular expression",
InvalidType::Other => "Invalid line",
};
warn!("{}", msg);
info!("Line {}: {}", invalid.line, invalid.source);
}
error!(
"[line:{}] {} `{}`",
invalid.line,
invalid.kind.as_str(),
invalid.source
);
}
}
async fn watch_config(p: PathBuf) {
let mut watch = Watch::new(p, WATCH_INTERVAL);
async fn watch_config(p: PathBuf, t: u64) {
let mut watch = Watch::new(p, t);
watch
.for_each(|c| {
info!("Reload the configuration file: {:?}", &c);
if let Ok(mut config) = Config::new(c) {
if let Ok((_, proxy, hosts, errors)) = config.parse() {
update_config(proxy, hosts);
output_invalid(errors);
if let Ok(parse) = config.parse() {
update_config(parse.proxy, parse.hosts, parse.timeout);
output_invalid(&parse.invalid);
}
}
})
@@ -261,19 +304,19 @@ async fn run_server(addr: SocketAddr) {
let (len, src) = match socket.recv_from(&mut req.buf).await {
Ok(r) => r,
Err(err) => {
error!("Failed to receive message\n{:?}", err);
error!("Failed to receive message {:?}", err);
continue;
}
};
let res = match handle(req, len).await {
Ok(data) => data,
Err(err) => {
error!("Processing request failed\n{:?}", err);
error!("Processing request failed {:?}", err);
continue;
}
};
if let Err(err) = socket.send_to(&res, &src).await {
error!("Replying to '{}' failed\n{:?}", &src, err);
error!("Replying to '{}' failed {:?}", &src, err);
}
}
}
@@ -284,7 +327,7 @@ async fn proxy(buf: &[u8]) -> io::Result<Vec<u8>> {
for addr in proxy.iter() {
let socket = UdpSocket::bind(("0.0.0.0", 0)).await?;
let data = io::timeout(Duration::from_millis(PROXY_TIMEOUT), async {
let data = io::timeout(Duration::from_millis(unsafe { TIMEOUT }), async {
socket.send_to(&buf, addr).await?;
let mut res = [0; 512];
let len = socket.recv(&mut res).await?;
@@ -297,7 +340,7 @@ async fn proxy(buf: &[u8]) -> io::Result<Vec<u8>> {
return Ok(data);
}
Err(err) => {
error!("Agent request to {}\n{:?}", addr, err);
error!("Agent request to {} {:?}", addr, err);
}
}
}

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@@ -1,7 +1,7 @@
use async_std::fs;
use async_std::io;
use async_std::prelude::*;
use async_std::stream;
use async_std::stream::Stream;
use async_std::task;
use std::path::PathBuf;
use std::time::{Duration, SystemTime};

4
tests/lookup.rs Normal file
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@@ -0,0 +1,4 @@
// todo
#[test]
fn lookup() {}