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use std::ffi::CString;
use std::ptr;
use grpc_sys::{self, GrpcChannelCredentials, GrpcServerCredentials};
use libc::c_char;
pub struct ServerCredentialsBuilder {
root: Option<CString>,
cert_chains: Vec<*mut c_char>,
private_keys: Vec<*mut c_char>,
force_client_auth: bool,
}
impl ServerCredentialsBuilder {
pub fn new() -> ServerCredentialsBuilder {
ServerCredentialsBuilder {
root: None,
cert_chains: vec![],
private_keys: vec![],
force_client_auth: false,
}
}
pub fn root_cert<S: Into<Vec<u8>>>(
mut self,
cert: S,
force_client_auth: bool,
) -> ServerCredentialsBuilder {
self.root = Some(CString::new(cert).unwrap());
self.force_client_auth = force_client_auth;
self
}
pub fn add_cert<S: Into<Vec<u8>>>(
mut self,
cert: S,
private_key: S,
) -> ServerCredentialsBuilder {
self.cert_chains
.push(CString::new(cert).unwrap().into_raw());
self.private_keys
.push(CString::new(private_key).unwrap().into_raw());
self
}
pub fn build(mut self) -> ServerCredentials {
let root_cert = self.root
.take()
.map_or_else(ptr::null_mut, CString::into_raw);
let cert_chains = self.cert_chains.as_mut_ptr();
let private_keys = self.private_keys.as_mut_ptr();
let force_auth = if self.force_client_auth { 1 } else { 0 };
let credentials = unsafe {
grpc_sys::grpcwrap_ssl_server_credentials_create(
root_cert,
cert_chains as _,
private_keys as _,
self.cert_chains.len(),
force_auth,
)
};
if !root_cert.is_null() {
unsafe {
CString::from_raw(root_cert);
}
}
ServerCredentials { creds: credentials }
}
}
impl Drop for ServerCredentialsBuilder {
fn drop(&mut self) {
for cert in self.cert_chains.drain(..) {
unsafe {
CString::from_raw(cert);
}
}
for key in self.private_keys.drain(..) {
unsafe {
CString::from_raw(key);
}
}
}
}
pub struct ServerCredentials {
creds: *mut GrpcServerCredentials,
}
impl ServerCredentials {
pub fn as_mut_ptr(&mut self) -> *mut GrpcServerCredentials {
self.creds
}
}
impl Drop for ServerCredentials {
fn drop(&mut self) {
unsafe { grpc_sys::grpc_server_credentials_release(self.creds) }
}
}
pub struct ChannelCredentialsBuilder {
root: Option<CString>,
cert_key_pair: Option<(CString, CString)>,
}
impl ChannelCredentialsBuilder {
pub fn new() -> ChannelCredentialsBuilder {
ChannelCredentialsBuilder {
root: None,
cert_key_pair: None,
}
}
pub fn root_cert<S: Into<Vec<u8>>>(mut self, cert: S) -> ChannelCredentialsBuilder {
self.root = Some(CString::new(cert).unwrap());
self
}
pub fn cert<S: Into<Vec<u8>>>(mut self, cert: S, key: S) -> ChannelCredentialsBuilder {
self.cert_key_pair = Some((CString::new(cert).unwrap(), CString::new(key).unwrap()));
self
}
pub fn build(mut self) -> ChannelCredentials {
let root_ptr = self.root
.take()
.map_or_else(ptr::null_mut, CString::into_raw);
let (cert_ptr, key_ptr) = self.cert_key_pair.take().map_or_else(
|| (ptr::null_mut(), ptr::null_mut()),
|(cert, key)| (cert.into_raw(), key.into_raw()),
);
let creds =
unsafe { grpc_sys::grpcwrap_ssl_credentials_create(root_ptr, cert_ptr, key_ptr) };
for ptr in &[root_ptr, cert_ptr, key_ptr] {
if !ptr.is_null() {
unsafe {
CString::from_raw(*ptr);
}
}
}
ChannelCredentials { creds: creds }
}
}
pub struct ChannelCredentials {
creds: *mut GrpcChannelCredentials,
}
impl ChannelCredentials {
pub fn as_mut_ptr(&mut self) -> *mut GrpcChannelCredentials {
self.creds
}
}
impl Drop for ChannelCredentials {
fn drop(&mut self) {
unsafe { grpc_sys::grpc_channel_credentials_release(self.creds) }
}
}