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feat(error): add Ssl variant to hyper::Error

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The errors from openssl were previously boxed into a
Box<std::error::Error>, which lost some specifics and made it difficult
to match against. To solve this, an `Ssl` variant is added to the
`Error` enum of hyper, and is returned when openssl returns specific
errors.

Closes #483

BREAKING CHANGE: Adds a variant to `hyper::Error`, which may break any
exhaustive matches.
This commit is contained in:
Sean McArthur
2015-05-05 12:34:36 -07:00
parent 18f7dd7d5b
commit 972b3a388a
6 changed files with 61 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/client/mod.rs
View File

@@ -144,7 +144,7 @@ impl<C: NetworkConnector<Stream=S> + Send, S: NetworkStream + Send> NetworkConne
type Stream = Box<NetworkStream + Send>;
#[inline]
fn connect(&mut self, host: &str, port: u16, scheme: &str)
-> io::Result<Box<NetworkStream + Send>> {
-> ::Result<Box<NetworkStream + Send>> {
Ok(try!(self.0.connect(host, port, scheme)).into())
}
}
@@ -155,7 +155,7 @@ impl NetworkConnector for Connector {
type Stream = Box<NetworkStream + Send>;
#[inline]
fn connect(&mut self, host: &str, port: u16, scheme: &str)
-> io::Result<Box<NetworkStream + Send>> {
-> ::Result<Box<NetworkStream + Send>> {
Ok(try!(self.0.connect(host, port, scheme)).into())
}
}

2
src/client/pool.rs
View File

@@ -98,7 +98,7 @@ impl<S> PoolImpl<S> {
impl<C: NetworkConnector<Stream=S>, S: NetworkStream + Send> NetworkConnector for Pool<C> {
type Stream = PooledStream<S>;
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> io::Result<PooledStream<S>> {
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> ::Result<PooledStream<S>> {
let key = key(host, port, scheme);
let mut locked = self.inner.lock().unwrap();
let mut should_remove = false;

31
src/error.rs
View File

@@ -4,11 +4,19 @@ use std::fmt;
use std::io::Error as IoError;
use httparse;
use openssl::ssl::error::SslError;
use url;
use self::Error::{Method, Uri, Version,
Header, Status, Io,
TooLarge};
use self::Error::{
Method,
Uri,
Version,
Header,
Status,
Io,
Ssl,
TooLarge
};
/// Result type often returned from methods that can have hyper `Error`s.
@@ -29,8 +37,10 @@ pub enum Error {
TooLarge,
/// An invalid `Status`, such as `1337 ELITE`.
Status,
/// An `IoError` that occurred while trying to read or write to a network stream.
/// An `io::Error` that occurred while trying to read or write to a network stream.
Io(IoError),
/// An error from the `openssl` library.
Ssl(SslError)
}
impl fmt::Display for Error {
@@ -48,13 +58,15 @@ impl StdError for Error {
Header => "Invalid Header provided",
TooLarge => "Message head is too large",
Status => "Invalid Status provided",
Io(_) => "An IoError occurred while connecting to the specified network",
Io(ref e) => e.description(),
Ssl(ref e) => e.description(),
}
}
fn cause(&self) -> Option<&StdError> {
match *self {
Io(ref error) => Some(error),
Ssl(ref error) => Some(error),
Uri(ref error) => Some(error),
_ => None,
}
@@ -73,6 +85,15 @@ impl From<url::ParseError> for Error {
}
}
impl From<SslError> for Error {
fn from(err: SslError) -> Error {
match err {
SslError::StreamError(err) => Io(err),
err => Ssl(err),
}
}
}
impl From<httparse::Error> for Error {
fn from(err: httparse::Error) -> Error {
match err {

6
src/mock.rs
View File

@@ -73,7 +73,7 @@ pub struct MockConnector;
impl NetworkConnector for MockConnector {
type Stream = MockStream;
fn connect(&mut self, _host: &str, _port: u16, _scheme: &str) -> io::Result<MockStream> {
fn connect(&mut self, _host: &str, _port: u16, _scheme: &str) -> ::Result<MockStream> {
Ok(MockStream::new())
}
}
@@ -88,7 +88,7 @@ macro_rules! mock_connector (
impl ::net::NetworkConnector for $name {
type Stream = ::mock::MockStream;
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> ::std::io::Result<::mock::MockStream> {
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> $crate::Result<::mock::MockStream> {
use std::collections::HashMap;
use std::io::Cursor;
debug!("MockStream::connect({:?}, {:?}, {:?})", host, port, scheme);
@@ -99,7 +99,7 @@ macro_rules! mock_connector (
let key = format!("{}://{}", scheme, host);
// ignore port for now
match map.get(&*key) {
Some(res) => Ok(::mock::MockStream {
Some(res) => Ok($crate::mock::MockStream {
write: vec![],
read: Cursor::new(res.to_string().into_bytes()),
}),

66
src/net.rs
View File

@@ -9,7 +9,7 @@ use std::sync::Arc;
use openssl::ssl::{Ssl, SslStream, SslContext, SSL_VERIFY_NONE};
use openssl::ssl::SslMethod::Sslv23;
use openssl::ssl::error::{SslError, StreamError, OpenSslErrors, SslSessionClosed};
use openssl::ssl::error::StreamError as SslIoError;
use openssl::x509::X509FileType;
use typeable::Typeable;
@@ -29,7 +29,7 @@ pub trait NetworkListener: Clone {
//fn listen<To: ToSocketAddrs>(&mut self, addr: To) -> io::Result<Self::Acceptor>;
/// Returns an iterator of streams.
fn accept(&mut self) -> io::Result<Self::Stream>;
fn accept(&mut self) -> ::Result<Self::Stream>;
/// Get the address this Listener ended up listening on.
fn local_addr(&mut self) -> io::Result<SocketAddr>;
@@ -47,8 +47,8 @@ pub trait NetworkListener: Clone {
pub struct NetworkConnections<'a, N: NetworkListener + 'a>(&'a mut N);
impl<'a, N: NetworkListener + 'a> Iterator for NetworkConnections<'a, N> {
type Item = io::Result<N::Stream>;
fn next(&mut self) -> Option<io::Result<N::Stream>> {
type Item = ::Result<N::Stream>;
fn next(&mut self) -> Option<::Result<N::Stream>> {
Some(self.0.accept())
}
}
@@ -58,6 +58,7 @@ pub trait NetworkStream: Read + Write + Any + Send + Typeable {
/// Get the remote address of the underlying connection.
fn peer_addr(&mut self) -> io::Result<SocketAddr>;
/// This will be called when Stream should no longer be kept alive.
#[inline]
fn close(&mut self, _how: Shutdown) -> io::Result<()> {
Ok(())
}
@@ -68,7 +69,7 @@ pub trait NetworkConnector {
/// Type of Stream to create
type Stream: Into<Box<NetworkStream + Send>>;
/// Connect to a remote address.
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> io::Result<Self::Stream>;
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> ::Result<Self::Stream>;
}
impl<T: NetworkStream + Send> From<T> for Box<NetworkStream + Send> {
@@ -158,22 +159,22 @@ impl Clone for HttpListener {
impl HttpListener {
/// Start listening to an address over HTTP.
pub fn http<To: ToSocketAddrs>(addr: To) -> io::Result<HttpListener> {
pub fn http<To: ToSocketAddrs>(addr: To) -> ::Result<HttpListener> {
Ok(HttpListener::Http(try!(TcpListener::bind(addr))))
}
/// Start listening to an address over HTTPS.
pub fn https<To: ToSocketAddrs>(addr: To, cert: &Path, key: &Path) -> io::Result<HttpListener> {
let mut ssl_context = try!(SslContext::new(Sslv23).map_err(lift_ssl_error));
try!(ssl_context.set_cipher_list("DEFAULT").map_err(lift_ssl_error));
try!(ssl_context.set_certificate_file(cert, X509FileType::PEM).map_err(lift_ssl_error));
try!(ssl_context.set_private_key_file(key, X509FileType::PEM).map_err(lift_ssl_error));
pub fn https<To: ToSocketAddrs>(addr: To, cert: &Path, key: &Path) -> ::Result<HttpListener> {
let mut ssl_context = try!(SslContext::new(Sslv23));
try!(ssl_context.set_cipher_list("DEFAULT"));
try!(ssl_context.set_certificate_file(cert, X509FileType::PEM));
try!(ssl_context.set_private_key_file(key, X509FileType::PEM));
ssl_context.set_verify(SSL_VERIFY_NONE, None);
HttpListener::https_with_context(addr, ssl_context)
}
/// Start listening to an address of HTTPS using the given SslContext
pub fn https_with_context<To: ToSocketAddrs>(addr: To, ssl_context: SslContext) -> io::Result<HttpListener> {
pub fn https_with_context<To: ToSocketAddrs>(addr: To, ssl_context: SslContext) -> ::Result<HttpListener> {
Ok(HttpListener::Https(try!(TcpListener::bind(addr)), Arc::new(ssl_context)))
}
}
@@ -182,21 +183,20 @@ impl NetworkListener for HttpListener {
type Stream = HttpStream;
#[inline]
fn accept(&mut self) -> io::Result<HttpStream> {
Ok(match *self {
HttpListener::Http(ref mut tcp) => HttpStream::Http(CloneTcpStream(try!(tcp.accept()).0)),
fn accept(&mut self) -> ::Result<HttpStream> {
match *self {
HttpListener::Http(ref mut tcp) => Ok(HttpStream::Http(CloneTcpStream(try!(tcp.accept()).0))),
HttpListener::Https(ref mut tcp, ref ssl_context) => {
let stream = CloneTcpStream(try!(tcp.accept()).0);
match SslStream::new_server(&**ssl_context, stream) {
Ok(ssl_stream) => HttpStream::Https(ssl_stream),
Err(StreamError(e)) => {
return Err(io::Error::new(io::ErrorKind::ConnectionAborted,
e));
Ok(ssl_stream) => Ok(HttpStream::Https(ssl_stream)),
Err(SslIoError(e)) => {
Err(io::Error::new(io::ErrorKind::ConnectionAborted, e).into())
},
Err(e) => return Err(lift_ssl_error(e))
Err(e) => Err(e.into())
}
}
})
}
}
#[inline]
@@ -308,9 +308,9 @@ pub type ContextVerifier = Box<FnMut(&mut SslContext) -> () + Send>;
impl NetworkConnector for HttpConnector {
type Stream = HttpStream;
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> io::Result<HttpStream> {
fn connect(&mut self, host: &str, port: u16, scheme: &str) -> ::Result<HttpStream> {
let addr = &(host, port);
match scheme {
Ok(try!(match scheme {
"http" => {
debug!("http scheme");
Ok(HttpStream::Http(CloneTcpStream(try!(TcpStream::connect(addr)))))
@@ -318,30 +318,20 @@ impl NetworkConnector for HttpConnector {
"https" => {
debug!("https scheme");
let stream = CloneTcpStream(try!(TcpStream::connect(addr)));
let mut context = try!(SslContext::new(Sslv23).map_err(lift_ssl_error));
let mut context = try!(SslContext::new(Sslv23));
if let Some(ref mut verifier) = self.0 {
verifier(&mut context);
}
let ssl = try!(Ssl::new(&context).map_err(lift_ssl_error));
try!(ssl.set_hostname(host).map_err(lift_ssl_error));
let stream = try!(SslStream::new(&context, stream).map_err(lift_ssl_error));
let ssl = try!(Ssl::new(&context));
try!(ssl.set_hostname(host));
let stream = try!(SslStream::new(&context, stream));
Ok(HttpStream::Https(stream))
},
_ => {
Err(io::Error::new(io::ErrorKind::InvalidInput,
"Invalid scheme for Http"))
}
}
}
}
fn lift_ssl_error(ssl: SslError) -> io::Error {
debug!("lift_ssl_error: {:?}", ssl);
match ssl {
StreamError(err) => err,
SslSessionClosed => io::Error::new(io::ErrorKind::ConnectionAborted,
"SSL Connection Closed"),
e@OpenSslErrors(..) => io::Error::new(io::ErrorKind::Other, e)
}))
}
}