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Merge pull request #14 from untitaker/refactor-read-passwd 

Refactor read_passwd
This commit is contained in:
Ticki 2016-04-02 18:32:39 +02:00
parent bf1a6ecc2e cdd7a302b2
commit b5c4f2512d
1 changed files with 17 additions and 9 deletions
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26
src/input.rs
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@ -80,12 +80,22 @@ pub trait TermRead {
#[cfg(feature = "nightly")]
fn keys(self) -> Keys<Chars<Self>> where Self: Sized;
/// Read a line.
///
/// EOT and ETX will abort the prompt, returning `None`. Newline or carriage return will
/// complete the input.
fn read_line(&mut self) -> io::Result<Option<String>>;
/// Read a password.
///
/// EOT and ETX will abort the prompt, returning `None`. Newline or carriage return will
/// complete the password input.
fn read_passwd<W: Write>(&mut self, writer: &mut W) -> io::Result<Option<String>>;
/// complete the input.
fn read_passwd<W: Write>(&mut self, writer: &mut W) -> io::Result<Option<String>> {
let _raw = try!(writer.into_raw_mode());
self.read_line()
}
}
impl<R: Read> TermRead for R {
#[cfg(feature = "nightly")]
@ -95,9 +105,8 @@ impl<R: Read> TermRead for R {
}
}
fn read_passwd<W: Write>(&mut self, writer: &mut W) -> io::Result<Option<String>> {
let _raw = try!(writer.into_raw_mode());
let mut passbuf = Vec::with_capacity(30);
fn read_line(&mut self) -> io::Result<Option<String>> {
let mut buf = Vec::with_capacity(30);
for c in self.bytes() {
match c {
@ -105,13 +114,12 @@ impl<R: Read> TermRead for R {
Ok(0) | Ok(3) | Ok(4) => return Ok(None),
Ok(0x7f) => { passbuf.pop(); },
Ok(b'\n') | Ok(b'\r') => break,
Ok(c) => passbuf.push(c),
Ok(c) => buf.push(c),
}
}
let passwd = try!(String::from_utf8(passbuf).map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e)));
Ok(Some(passwd))
let string = try!(String::from_utf8(buf).map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e)));
Ok(Some(string))
}
}