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https://github.com/denoland/deno.git
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0d7a417f33
This adds support for using in memory CA certificates for `Deno.startTLS`, `Deno.connectTLS` and `Deno.createHttpClient`. `certFile` is deprecated in `startTls` and `connectTls`, and removed from `Deno.createHttpClient`.
260 lines
7.3 KiB
Rust
260 lines
7.3 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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pub use reqwest;
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pub use rustls;
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pub use rustls_native_certs;
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pub use webpki;
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pub use webpki_roots;
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use deno_core::error::anyhow;
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use deno_core::error::custom_error;
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use deno_core::error::generic_error;
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use deno_core::error::AnyError;
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use deno_core::parking_lot::Mutex;
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use deno_core::Extension;
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use reqwest::header::HeaderMap;
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use reqwest::header::USER_AGENT;
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use reqwest::redirect::Policy;
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use reqwest::Client;
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use rustls::internal::msgs::handshake::DigitallySignedStruct;
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use rustls::internal::pemfile::certs;
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use rustls::internal::pemfile::pkcs8_private_keys;
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use rustls::internal::pemfile::rsa_private_keys;
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use rustls::Certificate;
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use rustls::ClientConfig;
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use rustls::HandshakeSignatureValid;
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use rustls::PrivateKey;
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use rustls::RootCertStore;
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use rustls::ServerCertVerified;
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use rustls::ServerCertVerifier;
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use rustls::StoresClientSessions;
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use rustls::TLSError;
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use rustls::WebPKIVerifier;
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use serde::Deserialize;
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use std::collections::HashMap;
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use std::io::BufRead;
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use std::io::BufReader;
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use std::io::Cursor;
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use std::sync::Arc;
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use webpki::DNSNameRef;
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/// This extension has no runtime apis, it only exports some shared native functions.
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pub fn init() -> Extension {
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Extension::builder().build()
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}
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pub struct NoCertificateVerification(pub Vec<String>);
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impl ServerCertVerifier for NoCertificateVerification {
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fn verify_server_cert(
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&self,
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roots: &RootCertStore,
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presented_certs: &[Certificate],
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dns_name_ref: DNSNameRef<'_>,
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ocsp: &[u8],
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) -> Result<ServerCertVerified, TLSError> {
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let dns_name: &str = dns_name_ref.into();
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let dns_name: String = dns_name.to_owned();
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if self.0.is_empty() || self.0.contains(&dns_name) {
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Ok(ServerCertVerified::assertion())
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} else {
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WebPKIVerifier::new().verify_server_cert(
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roots,
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presented_certs,
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dns_name_ref,
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ocsp,
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)
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}
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}
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fn verify_tls12_signature(
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&self,
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_message: &[u8],
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_cert: &Certificate,
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_dss: &DigitallySignedStruct,
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) -> Result<HandshakeSignatureValid, TLSError> {
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Ok(HandshakeSignatureValid::assertion())
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}
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fn verify_tls13_signature(
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&self,
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_message: &[u8],
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_cert: &Certificate,
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_dss: &DigitallySignedStruct,
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) -> Result<HandshakeSignatureValid, TLSError> {
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Ok(HandshakeSignatureValid::assertion())
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}
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}
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#[derive(Deserialize, Default, Debug, Clone)]
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#[serde(rename_all = "camelCase")]
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#[serde(default)]
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pub struct Proxy {
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pub url: String,
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pub basic_auth: Option<BasicAuth>,
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}
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#[derive(Deserialize, Default, Debug, Clone)]
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#[serde(default)]
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pub struct BasicAuth {
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pub username: String,
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pub password: String,
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}
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lazy_static::lazy_static! {
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static ref CLIENT_SESSION_MEMORY_CACHE: Arc<ClientSessionMemoryCache> =
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Arc::new(ClientSessionMemoryCache::default());
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}
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#[derive(Default)]
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struct ClientSessionMemoryCache(Mutex<HashMap<Vec<u8>, Vec<u8>>>);
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impl StoresClientSessions for ClientSessionMemoryCache {
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fn get(&self, key: &[u8]) -> Option<Vec<u8>> {
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self.0.lock().get(key).cloned()
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}
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fn put(&self, key: Vec<u8>, value: Vec<u8>) -> bool {
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let mut sessions = self.0.lock();
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// TODO(bnoordhuis) Evict sessions LRU-style instead of arbitrarily.
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while sessions.len() >= 1024 {
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let key = sessions.keys().next().unwrap().clone();
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sessions.remove(&key);
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}
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sessions.insert(key, value);
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true
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}
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}
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pub fn create_default_root_cert_store() -> RootCertStore {
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let mut root_cert_store = RootCertStore::empty();
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// TODO(@justinmchase): Consider also loading the system keychain here
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root_cert_store.add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
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root_cert_store
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}
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pub fn create_client_config(
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root_cert_store: Option<RootCertStore>,
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ca_certs: Vec<Vec<u8>>,
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unsafely_ignore_certificate_errors: Option<Vec<String>>,
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) -> Result<ClientConfig, AnyError> {
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let mut tls_config = ClientConfig::new();
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tls_config.set_persistence(CLIENT_SESSION_MEMORY_CACHE.clone());
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tls_config.root_store =
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root_cert_store.unwrap_or_else(create_default_root_cert_store);
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// If custom certs are specified, add them to the store
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for cert in ca_certs {
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let reader = &mut BufReader::new(Cursor::new(cert));
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// This function does not return specific errors, if it fails give a generic message.
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if let Err(()) = tls_config.root_store.add_pem_file(reader) {
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return Err(anyhow!("Unable to add pem file to certificate store"));
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}
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}
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if let Some(ic_allowlist) = unsafely_ignore_certificate_errors {
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tls_config.dangerous().set_certificate_verifier(Arc::new(
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NoCertificateVerification(ic_allowlist),
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));
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}
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Ok(tls_config)
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}
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pub fn load_certs(
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reader: &mut dyn BufRead,
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) -> Result<Vec<Certificate>, AnyError> {
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let certs = certs(reader)
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.map_err(|_| custom_error("InvalidData", "Unable to decode certificate"))?;
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if certs.is_empty() {
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let e = custom_error("InvalidData", "No certificates found in cert file");
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return Err(e);
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}
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Ok(certs)
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}
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fn key_decode_err() -> AnyError {
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custom_error("InvalidData", "Unable to decode key")
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}
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fn key_not_found_err() -> AnyError {
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custom_error("InvalidData", "No keys found in key file")
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}
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/// Starts with -----BEGIN RSA PRIVATE KEY-----
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fn load_rsa_keys(mut bytes: &[u8]) -> Result<Vec<PrivateKey>, AnyError> {
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let keys = rsa_private_keys(&mut bytes).map_err(|_| key_decode_err())?;
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Ok(keys)
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}
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/// Starts with -----BEGIN PRIVATE KEY-----
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fn load_pkcs8_keys(mut bytes: &[u8]) -> Result<Vec<PrivateKey>, AnyError> {
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let keys = pkcs8_private_keys(&mut bytes).map_err(|_| key_decode_err())?;
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Ok(keys)
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}
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pub fn load_private_keys(bytes: &[u8]) -> Result<Vec<PrivateKey>, AnyError> {
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let mut keys = load_rsa_keys(bytes)?;
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if keys.is_empty() {
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keys = load_pkcs8_keys(bytes)?;
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}
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if keys.is_empty() {
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return Err(key_not_found_err());
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}
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Ok(keys)
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}
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/// Create new instance of async reqwest::Client. This client supports
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/// proxies and doesn't follow redirects.
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pub fn create_http_client(
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user_agent: String,
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root_cert_store: Option<RootCertStore>,
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ca_certs: Vec<Vec<u8>>,
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proxy: Option<Proxy>,
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unsafely_ignore_certificate_errors: Option<Vec<String>>,
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client_cert_chain_and_key: Option<(String, String)>,
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) -> Result<Client, AnyError> {
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let mut tls_config = create_client_config(
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root_cert_store,
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ca_certs,
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unsafely_ignore_certificate_errors,
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)?;
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if let Some((cert_chain, private_key)) = client_cert_chain_and_key {
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// The `remove` is safe because load_private_keys checks that there is at least one key.
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let private_key = load_private_keys(private_key.as_bytes())?.remove(0);
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tls_config
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.set_single_client_cert(
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load_certs(&mut cert_chain.as_bytes())?,
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private_key,
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)
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.expect("invalid client key or certificate");
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}
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let mut headers = HeaderMap::new();
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headers.insert(USER_AGENT, user_agent.parse().unwrap());
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let mut builder = Client::builder()
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.redirect(Policy::none())
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.default_headers(headers)
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.use_preconfigured_tls(tls_config);
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if let Some(proxy) = proxy {
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let mut reqwest_proxy = reqwest::Proxy::all(&proxy.url)?;
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if let Some(basic_auth) = &proxy.basic_auth {
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reqwest_proxy =
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reqwest_proxy.basic_auth(&basic_auth.username, &basic_auth.password);
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}
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builder = builder.proxy(reqwest_proxy);
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}
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builder
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.build()
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.map_err(|e| generic_error(format!("Unable to build http client: {}", e)))
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}
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