feat: ClientBuilder
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16af1c1bd0
commit
1d6e22238c
4 changed files with 130 additions and 5 deletions
116
src/builder.rs
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116
src/builder.rs
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@ -0,0 +1,116 @@
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use std::sync::Arc;
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use crate::{
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certs::verifier::{CustomCertVerifier, SelfsignedCertVerifier},
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Client,
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};
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use tokio_rustls::rustls::{
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self,
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client::{danger::ServerCertVerifier, WebPkiServerVerifier},
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pki_types::TrustAnchor,
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SupportedProtocolVersion,
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};
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pub struct ClientBuilder {
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root_certs: rustls::RootCertStore,
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ss_verifier: Option<Box<dyn SelfsignedCertVerifier>>,
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custom_verifier: Option<Arc<dyn ServerCertVerifier + 'static>>,
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tls_versions: Option<&'static [&'static SupportedProtocolVersion]>,
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}
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impl ClientBuilder {
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pub fn new() -> Self {
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ClientBuilder {
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root_certs: rustls::RootCertStore::empty(),
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ss_verifier: None,
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custom_verifier: None,
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tls_versions: None,
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}
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}
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pub fn build(self) -> Client {
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let provider = rustls::crypto::CryptoProvider::get_default()
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.map(|c| c.clone())
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.unwrap_or_else(|| Arc::new(rustls::crypto::ring::default_provider()));
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let tls_config = rustls::ClientConfig::builder_with_provider(provider.clone())
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.with_protocol_versions(if let Some(versions) = self.tls_versions {
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versions
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} else {
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rustls::DEFAULT_VERSIONS
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})
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.unwrap();
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let tls_config = if let Some(cv) = self.custom_verifier {
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tls_config.dangerous().with_custom_certificate_verifier(cv)
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} else if let Some(ssv) = self.ss_verifier {
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tls_config
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.dangerous()
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.with_custom_certificate_verifier(Arc::new(CustomCertVerifier {
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provider: provider.clone(),
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webpki_verifier: if !self.root_certs.is_empty() {
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Some(
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WebPkiServerVerifier::builder_with_provider(
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Arc::new(self.root_certs),
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provider,
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)
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.build()
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// panics only if roots are empty (that is checked above)
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// or CRLs couldn't be parsed (we didn't provide any)
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.unwrap(),
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)
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} else {
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None
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},
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ss_allowed: true,
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ss_verifier: ssv,
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}))
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} else {
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tls_config.with_root_certificates(self.root_certs)
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};
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// TODO
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let tls_config = tls_config.with_no_client_auth();
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Client::from(tls_config)
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}
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pub fn with_webpki_roots(mut self) -> Self {
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self.root_certs
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.extend(webpki_roots::TLS_SERVER_ROOTS.iter().cloned());
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self
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}
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pub fn with_custom_roots(
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mut self,
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iter: impl IntoIterator<Item = TrustAnchor<'static>>,
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) -> Self {
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self.root_certs.extend(iter);
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self
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}
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pub fn with_selfsigned_cert_verifier(
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mut self,
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ss_verifier: impl SelfsignedCertVerifier + 'static,
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) -> Self {
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self.ss_verifier = Some(Box::new(ss_verifier));
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self
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}
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pub fn with_custom_verifier(
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mut self,
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custom_verifier: impl ServerCertVerifier + 'static,
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) -> Self {
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self.custom_verifier = Some(Arc::new(custom_verifier));
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self
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}
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pub fn with_tls_versions(
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mut self,
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versions: &'static [&'static SupportedProtocolVersion],
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) -> Self {
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self.tls_versions = Some(versions);
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self
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}
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}
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@ -1,3 +1,5 @@
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use std::sync::Arc;
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pub use tokio_rustls::rustls::pki_types::{CertificateDer, ServerName, UnixTime};
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use tokio_rustls::rustls::{
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@ -21,10 +23,10 @@ pub struct SelfsignedCert {
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}
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pub struct CustomCertVerifier {
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provider: rustls::crypto::CryptoProvider,
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webpki_verifier: Option<rustls::client::WebPkiServerVerifier>,
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ss_allowed: bool,
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ss_verifier: dyn SelfsignedCertVerifier,
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pub(crate) provider: Arc<rustls::crypto::CryptoProvider>,
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pub(crate) webpki_verifier: Option<Arc<rustls::client::WebPkiServerVerifier>>,
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pub(crate) ss_allowed: bool,
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pub(crate) ss_verifier: Box<dyn SelfsignedCertVerifier>,
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}
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impl ServerCertVerifier for CustomCertVerifier {
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@ -1,4 +1,4 @@
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use crate::{error::*, response::Response, status::*};
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use crate::{builder::ClientBuilder, error::*, response::Response, status::*};
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use std::net::ToSocketAddrs;
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use std::sync::Arc;
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@ -37,6 +37,12 @@ impl From<rustls::ClientConfig> for Client {
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}
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}
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impl Client {
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pub fn builder() -> ClientBuilder {
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ClientBuilder::new()
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}
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}
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impl Client {
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pub async fn request(self: &Self, url_str: &str) -> Result<Response, LibError> {
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let url = Url::parse(url_str).map_err(|e| InvalidUrl::ParseError(e))?;
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@ -1,3 +1,4 @@
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pub mod builder;
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pub mod certs;
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pub mod client;
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pub mod error;
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