334 lines
9.6 KiB
Rust
334 lines
9.6 KiB
Rust
use std::fmt;
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#[cfg(feature = "rustls-tls")]
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use rustls::{TLSError, ServerCertVerifier, RootCertStore, ServerCertVerified};
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#[cfg(feature = "rustls-tls")]
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use tokio_rustls::webpki::DNSNameRef;
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/// Represent a server X509 certificate.
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pub struct Certificate {
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#[cfg(feature = "default-tls")]
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native: ::native_tls::Certificate,
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#[cfg(feature = "rustls-tls")]
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original: Cert,
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}
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#[cfg(feature = "rustls-tls")]
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enum Cert {
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Der(Vec<u8>),
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Pem(Vec<u8>)
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}
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/// Represent a private key and X509 cert as a client certificate.
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pub struct Identity {
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inner: ClientCert,
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}
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enum ClientCert {
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#[cfg(feature = "default-tls")]
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Pkcs12(::native_tls::Identity),
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#[cfg(feature = "rustls-tls")]
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Pem {
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key: ::rustls::PrivateKey,
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certs: Vec<::rustls::Certificate>,
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}
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}
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impl Certificate {
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/// Create a `Certificate` from a binary DER encoded certificate
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///
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/// # Examples
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///
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/// ```
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/// # use std::fs::File;
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/// # use std::io::Read;
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/// # fn cert() -> Result<(), Box<std::error::Error>> {
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/// let mut buf = Vec::new();
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/// File::open("my_cert.der")?
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/// .read_to_end(&mut buf)?;
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/// let cert = reqwest::Certificate::from_der(&buf)?;
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/// # drop(cert);
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/// # Ok(())
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/// # }
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/// ```
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pub fn from_der(der: &[u8]) -> ::Result<Certificate> {
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Ok(Certificate {
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#[cfg(feature = "default-tls")]
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native: try_!(::native_tls::Certificate::from_der(der)),
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#[cfg(feature = "rustls-tls")]
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original: Cert::Der(der.to_owned()),
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})
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}
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/// Create a `Certificate` from a PEM encoded certificate
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///
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/// # Examples
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///
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/// ```
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/// # use std::fs::File;
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/// # use std::io::Read;
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/// # fn cert() -> Result<(), Box<std::error::Error>> {
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/// let mut buf = Vec::new();
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/// File::open("my_cert.pem")?
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/// .read_to_end(&mut buf)?;
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/// let cert = reqwest::Certificate::from_pem(&buf)?;
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/// # drop(cert);
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/// # Ok(())
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/// # }
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/// ```
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pub fn from_pem(pem: &[u8]) -> ::Result<Certificate> {
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Ok(Certificate {
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#[cfg(feature = "default-tls")]
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native: try_!(::native_tls::Certificate::from_pem(pem)),
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#[cfg(feature = "rustls-tls")]
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original: Cert::Pem(pem.to_owned())
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})
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}
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#[cfg(feature = "default-tls")]
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pub(crate) fn add_to_native_tls(
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self,
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tls: &mut ::native_tls::TlsConnectorBuilder,
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) {
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tls.add_root_certificate(self.native);
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}
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#[cfg(feature = "rustls-tls")]
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pub(crate) fn add_to_rustls(
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self,
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tls: &mut ::rustls::ClientConfig,
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) -> ::Result<()> {
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use std::io::Cursor;
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use rustls::TLSError;
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use rustls::internal::pemfile;
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match self.original {
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Cert::Der(buf) => try_!(tls.root_store.add(&::rustls::Certificate(buf))
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.map_err(TLSError::WebPKIError)),
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Cert::Pem(buf) => {
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let mut pem = Cursor::new(buf);
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let mut certs = try_!(pemfile::certs(&mut pem)
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.map_err(|_| TLSError::General(String::from("No valid certificate was found"))));
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for c in certs {
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try_!(tls.root_store.add(&c)
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.map_err(TLSError::WebPKIError));
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}
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}
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}
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Ok(())
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}
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}
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impl Identity {
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/// Parses a DER-formatted PKCS #12 archive, using the specified password to decrypt the key.
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///
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/// The archive should contain a leaf certificate and its private key, as well any intermediate
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/// certificates that allow clients to build a chain to a trusted root.
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/// The chain certificates should be in order from the leaf certificate towards the root.
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///
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/// PKCS #12 archives typically have the file extension `.p12` or `.pfx`, and can be created
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/// with the OpenSSL `pkcs12` tool:
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///
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/// ```bash
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/// openssl pkcs12 -export -out identity.pfx -inkey key.pem -in cert.pem -certfile chain_certs.pem
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/// ```
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///
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/// # Examples
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///
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/// ```
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/// # use std::fs::File;
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/// # use std::io::Read;
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/// # fn pkcs12() -> Result<(), Box<std::error::Error>> {
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/// let mut buf = Vec::new();
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/// File::open("my-ident.pfx")?
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/// .read_to_end(&mut buf)?;
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/// let pkcs12 = reqwest::Identity::from_pkcs12_der(&buf, "my-privkey-password")?;
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/// # drop(pkcs12);
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/// # Ok(())
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/// # }
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/// ```
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#[cfg(feature = "default-tls")]
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pub fn from_pkcs12_der(der: &[u8], password: &str) -> ::Result<Identity> {
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Ok(Identity {
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inner: ClientCert::Pkcs12(
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try_!(::native_tls::Identity::from_pkcs12(der, password))
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),
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})
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}
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/// Parses PEM encoded private key and certificate.
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///
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/// The input should contain a PEM encoded private key
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/// and at least one PEM encoded certificate.
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///
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/// # Examples
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///
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/// ```
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/// # use std::fs::File;
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/// # use std::io::Read;
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/// # fn pem() -> Result<(), Box<std::error::Error>> {
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/// let mut buf = Vec::new();
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/// File::open("my-ident.pem")?
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/// .read_to_end(&mut buf)?;
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/// let id = reqwest::Identity::from_pem(&buf)?;
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/// # drop(id);
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/// # Ok(())
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/// # }
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/// ```
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#[cfg(feature = "rustls-tls")]
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pub fn from_pem(buf: &[u8]) -> ::Result<Identity> {
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use std::io::Cursor;
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use rustls::TLSError;
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use rustls::internal::pemfile;
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let (key, certs) = {
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let mut pem = Cursor::new(buf);
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let mut certs = try_!(pemfile::certs(&mut pem)
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.map_err(|_| TLSError::General(String::from("No valid certificate was found"))));
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pem.set_position(0);
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let mut sk = try_!(pemfile::pkcs8_private_keys(&mut pem)
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.and_then(|pkcs8_keys| {
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if pkcs8_keys.is_empty() {
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Err(())
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} else {
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Ok(pkcs8_keys)
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}
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})
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.or_else(|_| {
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pem.set_position(0);
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pemfile::rsa_private_keys(&mut pem)
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})
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.map_err(|_| TLSError::General(String::from("No valid private key was found"))));
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if let (Some(sk), false) = (sk.pop(), certs.is_empty()) {
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(sk, certs)
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} else {
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return Err(::error::from(TLSError::General(String::from("private key or certificate not found"))));
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}
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};
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Ok(Identity {
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inner: ClientCert::Pem {
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key,
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certs,
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},
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})
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}
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#[cfg(feature = "default-tls")]
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pub(crate) fn add_to_native_tls(
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self,
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tls: &mut ::native_tls::TlsConnectorBuilder,
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) -> ::Result<()> {
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match self.inner {
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ClientCert::Pkcs12(id) => {
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tls.identity(id);
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Ok(())
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},
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#[cfg(feature = "rustls-tls")]
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ClientCert::Pem { .. } => Err(::error::from(::error::Kind::TlsIncompatible))
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}
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}
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#[cfg(feature = "rustls-tls")]
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pub(crate) fn add_to_rustls(
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self,
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tls: &mut ::rustls::ClientConfig,
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) -> ::Result<()> {
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match self.inner {
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ClientCert::Pem { key, certs } => {
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tls.set_single_client_cert(certs, key);
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Ok(())
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},
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#[cfg(feature = "default-tls")]
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ClientCert::Pkcs12(..) => return Err(::error::from(::error::Kind::TlsIncompatible))
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}
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}
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}
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impl fmt::Debug for Certificate {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_struct("Certificate")
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.finish()
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}
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}
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impl fmt::Debug for Identity {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_struct("Identity")
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.finish()
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}
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}
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pub(crate) enum TlsBackend {
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#[cfg(feature = "default-tls")]
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Default,
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#[cfg(feature = "rustls-tls")]
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Rustls
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}
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impl Default for TlsBackend {
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fn default() -> TlsBackend {
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#[cfg(feature = "default-tls")]
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{ TlsBackend::Default }
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#[cfg(all(feature = "rustls-tls", not(feature = "default-tls")))]
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{ TlsBackend::Rustls }
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}
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}
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#[cfg(feature = "rustls-tls")]
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pub(crate) struct NoVerifier;
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#[cfg(feature = "rustls-tls")]
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impl ServerCertVerifier for NoVerifier {
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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: &[rustls::Certificate],
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_dns_name: DNSNameRef,
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_ocsp_response: &[u8]
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) -> Result<ServerCertVerified, TLSError> {
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Ok(ServerCertVerified::assertion())
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[cfg(feature = "default-tls")]
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#[test]
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fn certificate_from_der_invalid() {
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Certificate::from_der(b"not der").unwrap_err();
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}
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#[cfg(feature = "default-tls")]
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#[test]
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fn certificate_from_pem_invalid() {
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Certificate::from_pem(b"not pem").unwrap_err();
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}
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#[cfg(feature = "default-tls")]
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#[test]
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fn identity_from_pkcs12_der_invalid() {
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Identity::from_pkcs12_der(b"not der", "nope").unwrap_err();
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}
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#[cfg(feature = "rustls-tls")]
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#[test]
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fn identity_from_pem_invalid() {
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Identity::from_pem(b"not pem").unwrap_err();
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}
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#[cfg(feature = "rustls-tls")]
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#[test]
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fn identity_from_pem_pkcs1_key() {
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let pem = b"-----BEGIN CERTIFICATE-----\n\
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-----END CERTIFICATE-----\n\
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-----BEGIN RSA PRIVATE KEY-----\n\
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-----END RSA PRIVATE KEY-----\n";
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Identity::from_pem(pem).unwrap();
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}
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}
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