[Serverless Mini Agent] Use Web PKI certificates for HTTPS Connections for Serverless Mini Agent

LICENSE-3rdparty.yml

@@ -29234,6 +29234,34 @@ third_party_libraries:
       DEALINGS IN THE SOFTWARE.
   - license: Apache-2.0
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+- package_name: webpki-roots
+  package_version: 0.26.3
+  repository: https://github.com/rustls/webpki-roots
+  license: MPL-2.0
+  licenses:
+  - license: MPL-2.0
+    text: |
+      This packge contains a modified version of ca-bundle.crt:
+
+      ca-bundle.crt -- Bundle of CA Root Certificates
+
+      Certificate data from Mozilla as of: Thu Nov  3 19:04:19 2011#
+      This is a bundle of X.509 certificates of public Certificate Authorities
+      (CA). These were automatically extracted from Mozilla's root certificates
+      file (certdata.txt).  This file can be found in the mozilla source tree:
+      http://mxr.mozilla.org/mozilla/source/security/nss/lib/ckfw/builtins/certdata.txt?raw=1#
+      It contains the certificates in PEM format and therefore
+      can be directly used with curl / libcurl / php_curl, or with
+      an Apache+mod_ssl webserver for SSL client authentication.
+      Just configure this file as the SSLCACertificateFile.#
+
+      ***** BEGIN LICENSE BLOCK *****
+      This Source Code Form is subject to the terms of the Mozilla Public License,
+      v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain
+      one at http://mozilla.org/MPL/2.0/.
+
+      ***** END LICENSE BLOCK *****
+      @(#) $RCSfile: certdata.txt,v $ $Revision: 1.80 $ $Date: 2011/11/03 15:11:58 $
 - package_name: winapi
   package_version: 0.2.8
   repository: https://github.com/retep998/winapi-rs

ddcommon/Cargo.toml

@@ -56,3 +56,7 @@ hyper-rustls = { version = "0.27", default-features = false, features = [
 [dev-dependencies]
 indexmap = "2.2"
 maplit = "1.0"
+
+[features]
+default = []
+use_webpki_roots = ["hyper-rustls/webpki-roots"]

ddcommon/src/connector/mod.rs

@@ -5,8 +5,14 @@ use futures::future::BoxFuture;
 use futures::{future, FutureExt};
 use hyper::client::HttpConnector;
 
+#[cfg(feature = "use_webpki_roots")]
+use hyper_rustls::ConfigBuilderExt;
+
 use lazy_static::lazy_static;
+
+#[cfg(not(feature = "use_webpki_roots"))]
 use rustls::pki_types::CertificateDer;
+
 use rustls::ClientConfig;
 use std::future::Future;
 use std::pin::Pin;
@@ -40,7 +46,12 @@ impl Default for Connector {
 
 impl Connector {
     pub fn new() -> Self {
-        match build_https_connector() {
+        #[cfg(feature = "use_webpki_roots")]
+        let https_connector_fn = build_https_connector_with_webpki_roots;
+        #[cfg(not(feature = "use_webpki_roots"))]
+        let https_connector_fn = build_https_connector;
+
+        match https_connector_fn() {
             Ok(connector) => Connector::Https(connector),
             Err(_) => Connector::Http(HttpConnector::new()),
         }
@@ -69,6 +80,7 @@ impl Connector {
     }
 }
 
+#[cfg(not(feature = "use_webpki_roots"))]
 fn build_https_connector(
 ) -> anyhow::Result<hyper_rustls::HttpsConnector<hyper_util::client::legacy::connect::HttpConnector>>
 {
@@ -83,6 +95,21 @@ fn build_https_connector(
         .build())
 }
 
+#[cfg(feature = "use_webpki_roots")]
+fn build_https_connector_with_webpki_roots(
+) -> anyhow::Result<hyper_rustls::HttpsConnector<hyper_util::client::legacy::connect::HttpConnector>>
+{
+    let client_config = ClientConfig::builder()
+        .with_webpki_roots()
+        .with_no_client_auth();
+    Ok(hyper_rustls::HttpsConnectorBuilder::new()
+        .with_tls_config(client_config)
+        .https_or_http()
+        .enable_http1()
+        .build())
+}
+
+#[cfg(not(feature = "use_webpki_roots"))]
 fn load_root_certs() -> anyhow::Result<rustls::RootCertStore> {
     let mut roots = rustls::RootCertStore::empty();
 
@@ -133,14 +160,23 @@ mod tests {
 
     #[test]
     #[cfg_attr(miri, ignore)]
+    #[cfg(not(feature = "use_webpki_roots"))]
     /// Verify that the Connector type implements the correct bound Connect + Clone
     /// to be able to use the hyper::Client
     fn test_hyper_client_from_connector() {
         let _: hyper::Client<Connector> = hyper::Client::builder().build(Connector::new());
     }
 
+    #[test]
+    #[cfg_attr(miri, ignore)]
+    #[cfg(feature = "use_webpki_roots")]
+    fn test_hyper_client_from_connector_with_webpki_roots() {
+        let _: hyper::Client<Connector> = hyper::Client::builder().build(Connector::new());
+    }
+
     #[tokio::test]
     #[cfg_attr(miri, ignore)]
+    #[cfg(not(feature = "use_webpki_roots"))]
     /// Verify that Connector will only allow non tls connections if root certificates
     /// are not found
     async fn test_missing_root_certificates_only_allow_http_connections() {
@@ -163,4 +199,26 @@ mod tests {
 
         env::set_var(ENV_SSL_CERT_FILE, old_value);
     }
+
+    #[tokio::test]
+    #[cfg_attr(miri, ignore)]
+    #[cfg(feature = "use_webpki_roots")]
+    /// Verify that Connector will allow tls connections if root certificates
+    /// are not found but can use webpki certificates
+    async fn test_missing_root_certificates_use_webpki_certificates() {
+        const ENV_SSL_CERT_FILE: &str = "SSL_CERT_FILE";
+        let old_value = env::var(ENV_SSL_CERT_FILE).unwrap_or_default();
+
+        env::set_var(ENV_SSL_CERT_FILE, "this/folder/does/not/exist");
+        let mut connector = Connector::new();
+        assert!(matches!(connector, Connector::Https(_)));
+
+        let stream = connector
+            .call(hyper::Uri::from_static("https://example.com"))
+            .await;
+
+        assert!(stream.is_ok());
+
+        env::set_var(ENV_SSL_CERT_FILE, old_value);
+    }
 }

trace-utils/Cargo.toml

@@ -20,7 +20,7 @@ log = "0.4"
 serde_json = "1.0"
 flate2 = "1.0"
 futures = { version = "0.3", default-features = false }
-ddcommon = { path = "../ddcommon" }
+ddcommon = { path = "../ddcommon", features = ["use_webpki_roots"] }
 datadog-trace-protobuf = { path = "../trace-protobuf" }
 datadog-trace-normalization = { path = "../trace-normalization" }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }