From 5ede9c31db245cc3c3354d9c16200545fa5255db Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Mon, 7 Jan 2019 22:21:27 +0000
Subject: Implement name query using dialog crate

---
 src/main.rs | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index 9fa1a72..331e22f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,6 @@
+// Copyright (C) 2019 Robin Krahl <robin.krahl@ireas.org>
+// SPDX-License-Identifier: MIT
+
 #![warn(missing_docs, rust_2018_compatibility, rust_2018_idioms, unused)]
 
 //! Reads OTP configuration from a QR code and writes it to an OTP slot on a Nitrokey device.
@@ -10,8 +13,11 @@ use std::path;
 use std::process;
 use std::str;
 
+use dialog::DialogBox;
+
 #[derive(Debug)]
 enum Error {
+    DialogError(dialog::Error),
     IoError(io::Error),
     Error(String),
     UrlParseError(url::ParseError),
@@ -21,6 +27,7 @@ enum Error {
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
+            Error::DialogError(ref err) => write!(f, "Dialog error: {:?}", err),
             Error::IoError(ref err) => write!(f, "IO error: {}", err),
             Error::Error(ref string) => write!(f, "Error: {}", string),
             Error::UrlParseError(ref err) => write!(f, "URL parse error: {}", err),
@@ -35,6 +42,12 @@ impl From<&str> for Error {
     }
 }
 
+impl From<dialog::Error> for Error {
+    fn from(error: dialog::Error) -> Error {
+        Error::DialogError(error)
+    }
+}
+
 impl From<io::Error> for Error {
     fn from(error: io::Error) -> Error {
         Error::IoError(error)
@@ -211,6 +224,30 @@ fn parse_url(url: &str) -> Result<UrlData, Error> {
     }
 }
 
+fn query_name(label: &str, issuer: Option<&str>) -> Result<String, Error> {
+    let title = "Enter OTP slot name";
+    let mut text = "Please enter a name for the OTP secret:".to_string();
+    text.push_str(&format!("\n\tlabel:\t{}", label));
+    if let Some(issuer) = issuer {
+        text.push_str(&format!("\n\tissuer:\t{}", issuer));
+    };
+    let text = text;
+    let default = issuer.unwrap_or(label);
+    let name = dialog::Input::new(text)
+        .title(title)
+        .default(default)
+        .show()?;
+    if let Some(name) = name {
+        if name.is_empty() {
+            Err(Error::from("The OTP name may not be empty"))
+        } else {
+            Ok(name.trim_end_matches(&"\n").to_string())
+        }
+    } else {
+        Err(Error::from("You canceled the name input dialog"))
+    }
+}
+
 fn run(options: Options) -> Result<(), Error> {
     let path = match options.file {
         Some(ref file) => path::PathBuf::from(file),
@@ -218,7 +255,11 @@ fn run(options: Options) -> Result<(), Error> {
     };
     let url = decode_qr_code(&path)?;
     let url_data = parse_url(&url)?;
-    println!("{:?}", url_data);
+    let name = match options.name {
+        Some(name) => name,
+        None => query_name(&url_data.label, url_data.issuer.as_ref().map(|x| &**x))?,
+    };
+    println!("{}: {:?}", name, url_data);
     if options.file.is_none() {
         fs::remove_file(&path)?;
     }
-- 
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