Fix percent-encoded usernames and passwords

Closes rust-postgres#113

Author: sfackler

src/url.rs

@@ -309,13 +309,13 @@ fn get_authority(rawurl: &str) ->
             colon_count = 0; // reset count
             match st {
               State::Start => {
-                let user = rawurl[begin..i].to_string();
+                let user = try!(decode_component(&rawurl[begin..i]));
                 userinfo = Some(UserInfo::new(user, None));
                 st = State::InHost;
               }
               State::PassHostPort => {
-                let user = rawurl[begin..pos].to_string();
-                let pass = rawurl[pos+1..i].to_string();
+                let user = try!(decode_component(&rawurl[begin..pos]));
+                let pass = try!(decode_component(&rawurl[pos+1..i]));
                 userinfo = Some(UserInfo::new(user, Some(pass)));
                 st = State::InHost;
               }

tests/test.rs

@@ -17,6 +17,7 @@ use postgres::{HandleNotice,
                Error,
                ConnectError,
                DbError,
+               IntoConnectParams,
                VecStreamIterator};
 use postgres::SqlState::{SyntaxError,
                          QueryCanceled,
@@ -936,3 +937,10 @@ fn test_get_opt_wrong_type() {
         Err(e) => panic!("unexpected error {}", e),
     }
 }
+
+#[test]
+fn url_encoded_password() {
+    let params = "postgresql://username%7b%7c:password%7b%7c@localhost".into_connect_params().unwrap();
+    assert_eq!("username{|", &params.user.as_ref().unwrap().user[..]);
+    assert_eq!("password{|", &params.user.as_ref().unwrap().password.as_ref().unwrap()[..]);
+}