v0.1.2

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "smtp"
-version = "0.1.1"
+version = "0.1.2"
 description = "Simple SMTP client"
 readme = "README.md"
 documentation = "http://amousset.me/rust-smtp/smtp/"

README.md

@@ -1,4 +1,4 @@
-rust-smtp [![Build Status](https://travis-ci.org/amousset/rust-smtp.svg?branch=master)](https://travis-ci.org/amousset/rust-smtp) [![Coverage Status](https://coveralls.io/repos/github/amousset/rust-smtp/badge.svg?branch=master)](https://coveralls.io/github/amousset/rust-smtp?branch=master) [![](https://meritbadge.herokuapp.com/smtp)](https://crates.io/crates/smtp)[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
+rust-smtp [![Build Status](https://travis-ci.org/amousset/rust-smtp.svg?branch=master)](https://travis-ci.org/amousset/rust-smtp) [![Coverage Status](https://coveralls.io/repos/github/amousset/rust-smtp/badge.svg?branch=master)](https://coveralls.io/github/amousset/rust-smtp?branch=master) [![Crate](https://meritbadge.herokuapp.com/smtp)](https://crates.io/crates/smtp) [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
 =========
 
 This library implements a simple SMTP client.

src/authentication.rs

@@ -81,6 +81,7 @@ mod test {
         let mecanism = Mecanism::Plain;
 
         assert_eq!(mecanism.response("username", "password", None).unwrap(), "AHVzZXJuYW1lAHBhc3N3b3Jk");
+        assert!(mecanism.response("username", "password", Some("test")).is_err());
     }
 
     #[test]
@@ -90,5 +91,7 @@ mod test {
         assert_eq!(mecanism.response("alice", "wonderland",
             Some("PDE3ODkzLjEzMjA2NzkxMjNAdGVzc2VyYWN0LnN1c2FtLmluPg==")).unwrap(),
             "YWxpY2UgNjRiMmE0M2MxZjZlZDY4MDZhOTgwOTE0ZTIzZTc1ZjA=");
+        assert!(mecanism.response("alice", "wonderland", Some("tést")).is_err());
+        assert!(mecanism.response("alice", "wonderland", None).is_err());
     }
 }

src/lib.rs

@@ -56,6 +56,7 @@
 //! ```rust,no_run
 //! use smtp::sender::{Sender, SenderBuilder};
 //! use smtp::email::EmailBuilder;
+//! use smtp::authentication::Mecanism;
 //!
 //! let mut builder = EmailBuilder::new();
 //! builder = builder.to(("user@example.org", "Alias name"));
@@ -76,6 +77,8 @@
 //!     .hello_name("my.hostname.tld")
 //!     // Add credentials for authentication
 //!     .credentials("username", "password")
+//!     // Configure accepted authetication mecanisms
+//!     .authentication_mecanisms(vec![Mecanism::CramMd5])
 //!     // Enable connection reuse
 //!     .enable_connection_reuse(true).build();
 //!

src/response.rs

@@ -2,7 +2,7 @@
 
 use std::str::FromStr;
 use std::fmt::{Display, Formatter, Result};
-use std::result::Result as RResult;
+use std::result;
 
 use self::Severity::*;
 use self::Category::*;
@@ -23,7 +23,7 @@ pub enum Severity {
 
 impl FromStr for Severity {
     type Err = Error;
-    fn from_str(s: &str) -> RResult<Severity, Error> {
+    fn from_str(s: &str) -> result::Result<Severity, Error> {
         match s {
             "2" => Ok(PositiveCompletion),
             "3" => Ok(PositiveIntermediate),
@@ -66,7 +66,7 @@ pub enum Category {
 
 impl FromStr for Category {
     type Err = Error;
-    fn from_str(s: &str) -> RResult<Category, Error> {
+    fn from_str(s: &str) -> result::Result<Category, Error> {
         match s {
             "0" => Ok(Syntax),
             "1" => Ok(Information),
@@ -109,7 +109,7 @@ impl FromStr for Code {
     type Err = Error;
 
     #[inline]
-    fn from_str(s: &str) -> RResult<Code, Error> {
+    fn from_str(s: &str) -> result::Result<Code, Error> {
         if s.len() == 3 {
             match (s[0..1].parse::<Severity>(), s[1..2].parse::<Category>(), s[2..3].parse::<u8>()) {
                 (Ok(severity), Ok(category), Ok(detail)) => Ok(Code {severity: severity, category: category, detail: detail}),
@@ -157,7 +157,7 @@ impl ResponseParser {
     }
 
     /// Parses a line and return a `bool` indicating if there are more lines to come
-    pub fn read_line(&mut self, line: &str) -> RResult<bool, Error> {
+    pub fn read_line(&mut self, line: &str) -> result::Result<bool, Error> {
 
         if line.len() < 3 {
             return Err(Error::ResponseParsingError("Wrong code length (should be 3 digit)"));

src/sender.rs

@@ -25,6 +25,8 @@ pub struct SenderBuilder {
     credentials: Option<(String, String)>,
     /// Socket we are connecting to
     server_addr: SocketAddr,
+    /// List of authentication mecanism, sorted by priority
+    authentication_mecanisms: Vec<Mecanism>,
 }
 
 /// Builder for the SMTP Sender
@@ -41,6 +43,7 @@ impl SenderBuilder {
 	            connection_reuse_count_limit: 100,
 	            enable_connection_reuse: false,
 	            hello_name: "localhost".to_string(),
+	            authentication_mecanisms: vec![Mecanism::CramMd5, Mecanism::Plain],
         	}),
     		None => Err(From::from("Could nor resolve hostname")),
     	}        
@@ -74,6 +77,12 @@ impl SenderBuilder {
         self.credentials = Some((username.to_string(), password.to_string()));
         self
     }
+    
+    /// Set the authentication mecanisms
+    pub fn authentication_mecanisms(mut self, mecanisms: Vec<Mecanism>) -> SenderBuilder {
+        self.authentication_mecanisms = mecanisms;
+        self
+    }
 
     /// Build the SMTP client
     ///
@@ -191,20 +200,22 @@ impl Sender {
             debug!("server {}", self.server_info.as_ref().unwrap());
         }
 
-        // TODO: Use PLAIN AUTH in encrypted connections, CRAM-MD5 otherwise
         if self.client_info.credentials.is_some() && self.state.connection_reuse_count == 0 {
-
             let (username, password) = self.client_info.credentials.clone().unwrap();
 
-            if self.server_info.as_ref().unwrap().supports_auth_mecanism(Mecanism::CramMd5) {
+			let mut found = false;
-                let result = self.client.auth(Mecanism::CramMd5, &username, &password);
+
-                try_smtp!(result, self);
+			for mecanism in self.client_info.authentication_mecanisms.clone() {
-            } else if self.server_info.as_ref().unwrap().supports_auth_mecanism(Mecanism::Plain) {
+				if self.server_info.as_ref().unwrap().supports_auth_mecanism(mecanism) {
-                let result = self.client.auth(Mecanism::Plain, &username, &password);
+					found = true;
-                try_smtp!(result, self);
+                	let result = self.client.auth(mecanism, &username, &password);
-            } else {
+                	try_smtp!(result, self);
-                debug!("No supported authentication mecanisms available");
+            	}
-            }
+			}
+			
+			if !found {
+				debug!("No supported authentication mecanisms available");
+			}
         }
 
         let current_message = try!(email.message_id().ok_or("Missing Message-ID"));