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Code Issues Packages 1 Wiki Activity

refactor DenoPermissions.check_net & resolve_addr (#3182)

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This commit is contained in:
EnokMan 2019-10-23 22:19:27 +08:00 committed by Ry Dahl
parent 4bebbda8db
commit 7c60ab4664
6 changed files with 70 additions and 127 deletions
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16
cli/ops/net.rs
View file

@ -70,13 +70,9 @@ fn op_dial(
let args: DialArgs = serde_json::from_value(args)?;
assert_eq!(args.transport, "tcp"); // TODO Support others.
// TODO(ry) Using format! is suboptimal here. Better would be if
// state.check_net and resolve_addr() took hostname and port directly.
let address = format!("{}:{}", args.hostname, args.port);
state.check_net(&args.hostname, args.port)?;
state.check_net(&address)?;
let op = resolve_addr(&address).and_then(move |addr| {
let op = resolve_addr(&args.hostname, args.port).and_then(move |addr| {
TcpStream::connect(&addr)
.map_err(ErrBox::from)
.and_then(move |tcp_stream| {
@ -141,13 +137,9 @@ fn op_listen(
let args: ListenArgs = serde_json::from_value(args)?;
assert_eq!(args.transport, "tcp");
// TODO(ry) Using format! is suboptimal here. Better would be if
// state.check_net and resolve_addr() took hostname and port directly.
let address = format!("{}:{}", args.hostname, args.port);
state.check_net(&args.hostname, args.port)?;
state.check_net(&address)?;
let addr = resolve_addr(&address).wait()?;
let addr = resolve_addr(&args.hostname, args.port).wait()?;
let listener = TcpListener::bind(&addr)?;
let local_addr = listener.local_addr()?;
let resource = resources::add_tcp_listener(listener);

17
cli/ops/tls.rs
View file

@ -55,23 +55,19 @@ pub fn op_dial_tls(
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: DialTLSArgs = serde_json::from_value(args)?;
// TODO(ry) Using format! is suboptimal here. Better would be if
// state.check_net and resolve_addr() took hostname and port directly.
let address = format!("{}:{}", args.hostname, args.port);
let cert_file = args.cert_file;
state.check_net(&address)?;
state.check_net(&args.hostname, args.port)?;
if let Some(path) = cert_file.clone() {
state.check_read(&path)?;
}
let mut domain = args.hostname;
let mut domain = args.hostname.clone();
if domain.is_empty() {
domain.push_str("localhost");
}
let op = resolve_addr(&address).and_then(move |addr| {
let op = resolve_addr(&args.hostname, args.port).and_then(move |addr| {
TcpStream::connect(&addr)
.and_then(move |tcp_stream| {
let local_addr = tcp_stream.local_addr()?;
@ -189,13 +185,10 @@ fn op_listen_tls(
let args: ListenTlsArgs = serde_json::from_value(args)?;
assert_eq!(args.transport, "tcp");
// TODO(ry) Using format! is suboptimal here. Better would be if
// state.check_net and resolve_addr() took hostname and port directly.
let address = format!("{}:{}", args.hostname, args.port);
let cert_file = args.cert_file;
let key_file = args.key_file;
state.check_net(&address)?;
state.check_net(&args.hostname, args.port)?;
state.check_read(&cert_file)?;
state.check_read(&key_file)?;
@ -204,7 +197,7 @@ fn op_listen_tls(
.set_single_cert(load_certs(&cert_file)?, load_keys(&key_file)?.remove(0))
.expect("invalid key or certificate");
let acceptor = TlsAcceptor::from(Arc::new(config));
let addr = resolve_addr(&address).wait()?;
let addr = resolve_addr(&args.hostname, args.port).wait()?;
let listener = TcpListener::bind(&addr)?;
let local_addr = listener.local_addr()?;
let resource = resources::add_tls_listener(listener, acceptor);

65
cli/permissions.rs
View file

@ -208,28 +208,19 @@ impl DenoPermissions {
}
}
pub fn check_net(&self, host_and_port: &str) -> Result<(), ErrBox> {
let msg = &format!("network access to \"{}\"", host_and_port);
pub fn check_net(&self, hostname: &str, port: u16) -> Result<(), ErrBox> {
let msg = &format!("network access to \"{}:{}\"", hostname, port);
match self.allow_net.get_state() {
PermissionAccessorState::Allow => {
self.log_perm_access(msg);
Ok(())
}
_state => {
let parts = host_and_port.split(':').collect::<Vec<&str>>();
if match parts.len() {
2 => {
if self.net_whitelist.contains(parts[0]) {
true
} else {
self
.net_whitelist
.contains(&format!("{}:{}", parts[0], parts[1]))
}
}
1 => self.net_whitelist.contains(parts[0]),
_ => panic!("Failed to parse origin string: {}", host_and_port),
} {
if self.net_whitelist.contains(hostname)
|| self
.net_whitelist
.contains(&format!("{}:{}", hostname, port))
{
self.log_perm_access(msg);
Ok(())
} else {
@ -438,26 +429,26 @@ mod tests {
});
let domain_tests = vec![
("localhost:1234", true),
("deno.land", true),
("deno.land:3000", true),
("deno.lands", false),
("deno.lands:3000", false),
("github.com:3000", true),
("github.com", false),
("github.com:2000", false),
("github.net:3000", false),
("127.0.0.1", true),
("127.0.0.1:3000", true),
("127.0.0.2", false),
("127.0.0.2:3000", false),
("172.16.0.2:8000", true),
("172.16.0.2", false),
("172.16.0.2:6000", false),
("172.16.0.1:8000", false),
("localhost", 1234, true),
("deno.land", 0, true),
("deno.land", 3000, true),
("deno.lands", 0, false),
("deno.lands", 3000, false),
("github.com", 3000, true),
("github.com", 0, false),
("github.com", 2000, false),
("github.net", 3000, false),
("127.0.0.1", 0, true),
("127.0.0.1", 3000, true),
("127.0.0.2", 0, false),
("127.0.0.2", 3000, false),
("172.16.0.2", 8000, true),
("172.16.0.2", 0, false),
("172.16.0.2", 6000, false),
("172.16.0.1", 8000, false),
// Just some random hosts that should err
("somedomain", false),
("192.168.0.1", false),
("somedomain", 0, false),
("192.168.0.1", 0, false),
];
let url_tests = vec![
@ -502,8 +493,8 @@ mod tests {
assert_eq!(*is_ok, perms.check_net_url(&u).is_ok());
}
for (domain, is_ok) in domain_tests.iter() {
assert_eq!(*is_ok, perms.check_net(domain).is_ok());
for (host, port, is_ok) in domain_tests.iter() {
assert_eq!(*is_ok, perms.check_net(host, *port).is_ok());
}
}
}

93
cli/resolve_addr.rs
View file

@ -1,5 +1,4 @@
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use crate::deno_error;
use deno::ErrBox;
use futures::Async;
use futures::Future;
@ -7,21 +6,17 @@ use futures::Poll;
use std::net::SocketAddr;
use std::net::ToSocketAddrs;
/// Go-style network address parsing. Returns a future.
/// Examples:
/// "192.0.2.1:25"
/// ":80"
/// "[2001:db8::1]:80"
/// "198.51.100.1:80"
/// "deno.land:443"
pub fn resolve_addr(address: &str) -> ResolveAddrFuture {
/// Resolve network address. Returns a future.
pub fn resolve_addr(hostname: &str, port: u16) -> ResolveAddrFuture {
ResolveAddrFuture {
address: address.to_string(),
hostname: hostname.to_string(),
port,
}
}
pub struct ResolveAddrFuture {
address: String,
hostname: String,
port: u16,
}
impl Future for ResolveAddrFuture {
@ -32,26 +27,14 @@ impl Future for ResolveAddrFuture {
// The implementation of this is not actually async at the moment,
// however we intend to use async DNS resolution in the future and
// so we expose this as a future instead of Result.
match split(&self.address) {
None => Err(deno_error::invalid_address_syntax()),
Some(addr_port_pair) => {
// I absolutely despise the .to_socket_addrs() API.
let r = addr_port_pair.to_socket_addrs().map_err(ErrBox::from);
r.and_then(|mut iter| match iter.next() {
Some(a) => Ok(Async::Ready(a)),
None => panic!("There should be at least one result"),
})
}
}
}
}
fn split(address: &str) -> Option<(&str, u16)> {
address.rfind(':').and_then(|i| {
let (a, p) = address.split_at(i);
// Default to localhost if given just the port. Example: ":80"
let addr = if !a.is_empty() { a } else { "0.0.0.0" };
let addr: &str = if !self.hostname.is_empty() {
&self.hostname
} else {
"0.0.0.0"
};
// If this looks like an ipv6 IP address. Example: "[2001:db8::1]"
// Then we remove the brackets.
let addr = if addr.starts_with('[') && addr.ends_with(']') {
@ -60,13 +43,14 @@ fn split(address: &str) -> Option<(&str, u16)> {
} else {
addr
};
let addr_port_pair = (addr, self.port);
let r = addr_port_pair.to_socket_addrs().map_err(ErrBox::from);
let p = p.trim_start_matches(':');
match p.parse::<u16>() {
Err(_) => None,
Ok(port) => Some((addr, port)),
}
})
r.and_then(|mut iter| match iter.next() {
Some(a) => Ok(Async::Ready(a)),
None => panic!("There should be at least one result"),
})
}
}
#[cfg(test)]
@ -77,36 +61,19 @@ mod tests {
use std::net::SocketAddrV4;
use std::net::SocketAddrV6;
#[test]
fn split1() {
assert_eq!(split("127.0.0.1:80"), Some(("127.0.0.1", 80)));
}
#[test]
fn split2() {
assert_eq!(split(":80"), Some(("0.0.0.0", 80)));
}
#[test]
fn split3() {
assert_eq!(split("no colon"), None);
}
#[test]
fn split4() {
assert_eq!(split("deno.land:443"), Some(("deno.land", 443)));
}
#[test]
fn split5() {
assert_eq!(split("[2001:db8::1]:8080"), Some(("2001:db8::1", 8080)));
}
#[test]
fn resolve_addr1() {
let expected =
SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 80));
let actual = resolve_addr("127.0.0.1:80").wait().unwrap();
let actual = resolve_addr("127.0.0.1", 80).wait().unwrap();
assert_eq!(actual, expected);
}
#[test]
fn resolve_addr2() {
let expected =
SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(0, 0, 0, 0), 80));
let actual = resolve_addr("", 80).wait().unwrap();
assert_eq!(actual, expected);
}
@ -114,7 +81,7 @@ mod tests {
fn resolve_addr3() {
let expected =
SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(192, 0, 2, 1), 25));
let actual = resolve_addr("192.0.2.1:25").wait().unwrap();
let actual = resolve_addr("192.0.2.1", 25).wait().unwrap();
assert_eq!(actual, expected);
}
@ -126,7 +93,7 @@ mod tests {
0,
0,
));
let actual = resolve_addr("[2001:db8::1]:8080").wait().unwrap();
let actual = resolve_addr("[2001:db8::1]", 8080).wait().unwrap();
assert_eq!(actual, expected);
}
}

4
cli/state.rs
View file

@ -336,8 +336,8 @@ impl ThreadSafeState {
}
#[inline]
pub fn check_net(&self, host_and_port: &str) -> Result<(), ErrBox> {
self.permissions.check_net(host_and_port)
pub fn check_net(&self, hostname: &str, port: u16) -> Result<(), ErrBox> {
self.permissions.check_net(hostname, port)
}
#[inline]

2
core/modules.rs
View file

@ -1021,7 +1021,7 @@ mod tests {
let result = recursive_load.poll();
assert!(result.is_ok());
assert!(result.ok().unwrap().is_not_ready());
let l = loads.lock().unwrap();;
let l = loads.lock().unwrap();
assert_eq!(
l.to_vec(),
vec![