Swap openssl for native-tls (#43)

* Replace openssl with native-tls

* Add From<TlsError> to allow builder()?

* Update AppVeyor config

* No email since it's not configured

Cargo.toml

@@ -25,7 +25,7 @@ name = "imap"
 path = "src/lib.rs"
 
 [dependencies]
-openssl = "0.9"
+native-tls = "0.1"
 regex = "0.2"
 bufstream = "0.1"
 

appveyor.yml

@@ -1,94 +1,67 @@
+# inspired by https://github.com/starkat99/appveyor-rust/blob/master/appveyor.yml
+
 environment:
-
-  global:
-    RUST_VERSION: stable
-    CRATE_NAME: imap
-    SSL_CERT_FILE: "C:\\OpenSSL\\cacert.pem"
-
   matrix:
 
-    # MinGW
-    - TARGET: i686-pc-windows-gnu
-      BITS: 32
-      MSYS2: 1
-      OPENSSL_VERSION: 1_1_0f
-    - TARGET: x86_64-pc-windows-gnu
-      BITS: 64
-      MSYS2: 1
-      OPENSSL_VERSION: 1_0_2L
+### MSVC Toolchains ###
 
-    # MSVC
-    - TARGET: i686-pc-windows-msvc
-      BITS: 32
-      OPENSSL_VERSION: 1_0_2L
-      OPENSSL_DIR: C:\OpenSSL
-    - TARGET: x86_64-pc-windows-msvc
-      BITS: 64
-      OPENSSL_VERSION: 1_1_0f
-      OPENSSL_DIR: C:\OpenSSL
+  # Stable 64-bit MSVC
+    - channel: stable
+      target: x86_64-pc-windows-msvc
+  # Stable 32-bit MSVC
+    - channel: stable
+      target: i686-pc-windows-msvc
+  # Beta 64-bit MSVC
+    - channel: beta
+      target: x86_64-pc-windows-msvc
+  # Beta 32-bit MSVC
+    - channel: beta
+      target: i686-pc-windows-msvc
 
-    # MinGW beta
-    - TARGET: i686-pc-windows-gnu
-      BITS: 32
-      MSYS2: 1
-      OPENSSL_VERSION: 1_1_0f
-      RUST_VERSION: beta
-    - TARGET: x86_64-pc-windows-gnu
-      BITS: 64
-      MSYS2: 1
-      OPENSSL_VERSION: 1_0_2L
-      RUST_VERSION: beta
+### GNU Toolchains ###
 
-    # MSVC beta
-    - TARGET: i686-pc-windows-msvc
-      BITS: 32
-      MSYS2: 1
-      OPENSSL_VERSION: 1_0_2L
-      OPENSSL_DIR: C:\OpenSSL
-      RUST_VERSION: beta
-    - TARGET: x86_64-pc-windows-msvc
-      BITS: 64
-      OPENSSL_VERSION: 1_1_0f
-      OPENSSL_DIR: C:\OpenSSL
-      RUST_VERSION: beta
+  # Stable 64-bit GNU
+    - channel: stable
+      target: x86_64-pc-windows-gnu
+  # Stable 32-bit GNU
+    - channel: stable
+      target: i686-pc-windows-gnu
+  # Beta 64-bit GNU
+    - channel: beta
+      target: x86_64-pc-windows-gnu
+  # Beta 32-bit GNU
+    - channel: beta
+      target: i686-pc-windows-gnu
+
+### MinGW Toolchains ###
+
+  # Stable 64-bit MinGW
+    - channel: stable
+      target: x86_64-pc-windows-msvc
+      MSYS_BITS: 64
+  # Stable 32-bit MinGW
+    - channel: stable
+      target: i686-pc-windows-msvc
+      MSYS_BITS: 32
+  # Beta 64-bit MinGW
+    - channel: beta
+      target: x86_64-pc-windows-msvc
+      MSYS_BITS: 64
+  # Beta 32-bit MinGW
+    - channel: beta
+      target: i686-pc-windows-msvc
+      MSYS_BITS: 32
 
 install:
-   # install OpenSSL
-  - ps: Start-FileDownload "http://slproweb.com/download/Win${env:BITS}OpenSSL-${env:OPENSSL_VERSION}.exe"
-  - Win%BITS%OpenSSL-%OPENSSL_VERSION%.exe /SILENT /VERYSILENT /SP- /DIR="C:\OpenSSL"
-  - appveyor DownloadFile https://curl.haxx.se/ca/cacert.pem -FileName C:\OpenSSL\cacert.pem
-
   # install Rust
-  - curl -sSf -o rustup-init.exe https://win.rustup.rs/
-  - rustup-init.exe -y --default-host %TARGET% --default-toolchain %RUST_VERSION%
-  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
-  - if defined MSYS2 set PATH=C:\msys64\mingw%BITS%\bin;%PATH%
-  - rustc -Vv
-  - cargo -V
-
-  - curl -sSf -o rustup-init.exe https://win.rustup.rs/
-  - rustup-init.exe -y --default-host %TARGET%
-  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
-  - if defined MSYS2 set PATH=C:\msys64\mingw%BITS%\bin;%PATH%
-  - rustc -V
-  - cargo -V
-
-test_script:
-  # we don't run the "test phase" when doing deploys
-  - if [%APPVEYOR_REPO_TAG%]==[false] (
-      cargo build --target %TARGET% &&
-      cargo build --target %TARGET% --release &&
-      cargo test --target %TARGET% &&
-      cargo test --target %TARGET% --release
-    )
-
-cache:
-  - C:\Users\appveyor\.cargo\registry
-  - target
-
-notifications:
-  - provider: Email
-    on_build_success: false
+  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
+  - rustup-init -yv --default-toolchain %channel% --default-host %target%
+  - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+  - rustc -vV
+  - cargo -vV
 
 # Building is done in the test phase, so we disable Appveyor's build phase.
 build: false
+
+test_script:
+  - cargo test

examples/basic.rs

@@ -1,7 +1,7 @@
 extern crate imap;
-extern crate openssl;
+extern crate native_tls;
 
-use openssl::ssl::{SslConnectorBuilder, SslMethod};
+use native_tls::TlsConnector;
 use imap::client::Client;
 
 // To connect to the gmail IMAP server with this you will need to allow unsecure apps access.
@@ -11,7 +11,7 @@ fn main() {
     let domain = "imap.gmail.com";
     let port = 993;
     let socket_addr = (domain, port);
-    let ssl_connector = SslConnectorBuilder::new(SslMethod::tls()).unwrap().build();
+    let ssl_connector = TlsConnector::builder().unwrap().build().unwrap();
     let mut imap_socket = Client::secure_connect(socket_addr, domain, ssl_connector).unwrap();
 
     imap_socket.login("username", "password").unwrap();

examples/gmail_oauth2.rs

@@ -1,8 +1,8 @@
 extern crate base64;
 extern crate imap;
-extern crate openssl;
+extern crate native_tls;
 
-use openssl::ssl::{SslConnectorBuilder, SslMethod};
+use native_tls::TlsConnector;
 use base64::encode;
 use imap::client::Client;
 use imap::authenticator::Authenticator;
@@ -33,7 +33,7 @@ fn main() {
     let domain = "imap.gmail.com";
     let port = 993;
     let socket_addr = (domain, port);
-    let ssl_connector = SslConnectorBuilder::new(SslMethod::tls()).unwrap().build();
+    let ssl_connector = TlsConnector::builder().unwrap().build().unwrap();
     let mut imap_socket = Client::secure_connect(socket_addr, domain, ssl_connector).unwrap();
 
     imap_socket.authenticate("XOAUTH2", gmail_auth).unwrap();

src/client.rs

@@ -1,5 +1,5 @@
 use std::net::{TcpStream, ToSocketAddrs};
-use openssl::ssl::{SslConnector, SslStream};
+use native_tls::{TlsConnector, TlsStream};
 use std::io::{self, Read, Write};
 use std::time::Duration;
 use bufstream::BufStream;
@@ -168,7 +168,7 @@ impl<'a> SetReadTimeout for TcpStream {
     }
 }
 
-impl<'a> SetReadTimeout for SslStream<TcpStream> {
+impl<'a> SetReadTimeout for TlsStream<TcpStream> {
     fn set_read_timeout(&mut self, timeout: Option<Duration>) -> Result<()> {
         self.get_ref()
             .set_read_timeout(timeout)
@@ -196,28 +196,28 @@ impl Client<TcpStream> {
     pub fn secure(
         mut self,
         domain: &str,
-        ssl_connector: SslConnector,
-    ) -> Result<Client<SslStream<TcpStream>>> {
+        ssl_connector: TlsConnector,
+    ) -> Result<Client<TlsStream<TcpStream>>> {
         // TODO This needs to be tested
         self.run_command_and_check_ok("STARTTLS")?;
-        SslConnector::connect(&ssl_connector, domain, try!(self.stream.into_inner()))
+        TlsConnector::connect(&ssl_connector, domain, try!(self.stream.into_inner()))
             .map(Client::new)
-            .map_err(Error::Ssl)
+            .map_err(Error::TlsHandshake)
     }
 }
 
-impl Client<SslStream<TcpStream>> {
+impl Client<TlsStream<TcpStream>> {
     /// Creates a client with an SSL wrapper.
     pub fn secure_connect<A: ToSocketAddrs>(
         addr: A,
         domain: &str,
-        ssl_connector: SslConnector,
-    ) -> Result<Client<SslStream<TcpStream>>> {
+        ssl_connector: TlsConnector,
+    ) -> Result<Client<TlsStream<TcpStream>>> {
         match TcpStream::connect(addr) {
             Ok(stream) => {
-                let ssl_stream = match SslConnector::connect(&ssl_connector, domain, stream) {
+                let ssl_stream = match TlsConnector::connect(&ssl_connector, domain, stream) {
                     Ok(s) => s,
-                    Err(e) => return Err(Error::Ssl(e)),
+                    Err(e) => return Err(Error::TlsHandshake(e)),
                 };
                 let mut socket = Client::new(ssl_stream);
 

src/error.rs

@@ -4,7 +4,8 @@ use std::fmt;
 use std::error::Error as StdError;
 use std::net::TcpStream;
 
-use openssl::ssl::HandshakeError as SslError;
+use native_tls::HandshakeError as TlsHandshakeError;
+use native_tls::Error as TlsError;
 use bufstream::IntoInnerError as BufError;
 
 pub type Result<T> = result::Result<T, Error>;
@@ -14,8 +15,10 @@ pub type Result<T> = result::Result<T, Error>;
 pub enum Error {
     /// 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<TcpStream>),
+    /// An error from the `native_tls` library during the TLS handshake.
+    TlsHandshake(TlsHandshakeError<TcpStream>),
+    /// An error from the `native_tls` library while managing the socket.
+    Tls(TlsError),
     /// A BAD response from the IMAP server.
     BadResponse(Vec<String>),
     /// A NO response from the IMAP server.
@@ -40,9 +43,15 @@ impl<T> From<BufError<T>> for Error {
     }
 }
 
-impl From<SslError<TcpStream>> for Error {
-    fn from(err: SslError<TcpStream>) -> Error {
-        Error::Ssl(err)
+impl From<TlsHandshakeError<TcpStream>> for Error {
+    fn from(err: TlsHandshakeError<TcpStream>) -> Error {
+        Error::TlsHandshake(err)
+    }
+}
+
+impl From<TlsError> for Error {
+    fn from(err: TlsError) -> Error {
+        Error::Tls(err)
     }
 }
 
@@ -50,7 +59,8 @@ impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match *self {
             Error::Io(ref e) => fmt::Display::fmt(e, f),
-            Error::Ssl(ref e) => fmt::Display::fmt(e, f),
+            Error::Tls(ref e) => fmt::Display::fmt(e, f),
+            Error::TlsHandshake(ref e) => fmt::Display::fmt(e, f),
             ref e => f.write_str(e.description()),
         }
     }
@@ -60,7 +70,8 @@ impl StdError for Error {
     fn description(&self) -> &str {
         match *self {
             Error::Io(ref e) => e.description(),
-            Error::Ssl(ref e) => e.description(),
+            Error::Tls(ref e) => e.description(),
+            Error::TlsHandshake(ref e) => e.description(),
             Error::Parse(ref e) => e.description(),
             Error::BadResponse(_) => "Bad Response",
             Error::NoResponse(_) => "No Response",
@@ -72,7 +83,8 @@ impl StdError for Error {
     fn cause(&self) -> Option<&StdError> {
         match *self {
             Error::Io(ref e) => Some(e),
-            Error::Ssl(ref e) => Some(e),
+            Error::Tls(ref e) => Some(e),
+            Error::TlsHandshake(ref e) => Some(e),
             _ => None,
         }
     }

src/lib.rs

@@ -4,7 +4,7 @@
 //! imap is a IMAP client for Rust.
 
 extern crate bufstream;
-extern crate openssl;
+extern crate native_tls;
 extern crate regex;
 
 pub mod authenticator;