opgpcard: Reorganize pin

tools/src/bin/opgpcard/commands/pin.rs

@@ -7,7 +7,7 @@ use std::path::PathBuf;
 use anyhow::Result;
 use clap::Parser;
 
-use openpgp_card_sequoia::card::Card;
+use openpgp_card_sequoia::card::{Card, Open};
 
 use crate::util;
 use crate::util::{load_pin, print_gnuk_note};
@@ -71,17 +71,51 @@ pub enum PinSubCommand {
 }
 
 pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
-    let backend = util::open_card(&ident)?;
+    let backend = util::open_card(ident)?;
     let mut card = Card::new(backend);
     let mut open = card.transaction()?;
 
     let pinpad_modify = open.feature_pinpad_modify();
 
+    // TODO de-complicate return, remove question marks
     match cmd {
         PinSubCommand::SetUser {
             user_pin_old,
             user_pin_new,
-        } => {
+        } => set_user(user_pin_old, user_pin_new, pinpad_modify, open)?,
+
+        PinSubCommand::SetAdmin {
+            admin_pin_old,
+            admin_pin_new,
+        } => set_admin(admin_pin_old, admin_pin_new, pinpad_modify, open)?,
+
+        // TODO: this doesn't use pinpad_modify, maybe don't compute it before this?
+        PinSubCommand::ResetUser {
+            admin_pin,
+            user_pin_new,
+        } => reset_user(admin_pin, user_pin_new, open)?,
+
+        // TODO: this doesn't use pinpad_modify, maybe don't compute it before this?
+        PinSubCommand::SetReset {
+            admin_pin,
+            reset_code,
+        } => set_reset(admin_pin, reset_code, open)?,
+
+        // TODO: this doesn't use pinpad_modify, maybe don't compute it before this?
+        PinSubCommand::ResetUserRc {
+            reset_code,
+            user_pin_new,
+        } => reset_user_rc(reset_code, user_pin_new, open)?,
+    }
+    Ok(())
+}
+
+fn set_user(
+    user_pin_old: Option<PathBuf>,
+    user_pin_new: Option<PathBuf>,
+    pinpad_modify: bool,
+    mut open: Open,
+) -> Result<()> {
     let res = if !pinpad_modify {
         // get current user pin
         let user_pin1 = util::get_pin(&mut open, user_pin_old, ENTER_USER_PIN)
@@ -118,11 +152,15 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
     } else {
         println!("\nUser PIN has been set.");
     }
+    Ok(())
 }
-        PinSubCommand::SetAdmin {
-            admin_pin_old,
-            admin_pin_new,
-        } => {
+
+fn set_admin(
+    admin_pin_old: Option<PathBuf>,
+    admin_pin_new: Option<PathBuf>,
+    pinpad_modify: bool,
+    mut open: Open,
+) -> Result<()> {
     if !pinpad_modify {
         // get current admin pin
         let admin_pin1 = util::get_pin(&mut open, admin_pin_old, ENTER_ADMIN_PIN)
@@ -138,10 +176,7 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
         let pin_new = match admin_pin_new {
             None => {
                 // ask user for new admin pin
-                        util::input_pin_twice(
-                            "Enter new Admin PIN: ",
-                            "Repeat the new Admin PIN: ",
-                        )?
+                util::input_pin_twice("Enter new Admin PIN: ", "Repeat the new Admin PIN: ")?
             }
             Some(path) => load_pin(&path)?,
         };
@@ -151,19 +186,19 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
     } else {
         // set new admin pin via pinpad
         open.change_admin_pin_pinpad(&|| {
-                    println!(
-                        "Enter old Admin PIN on card reader pinpad, then new Admin PIN (twice)."
-                    )
+            println!("Enter old Admin PIN on card reader pinpad, then new Admin PIN (twice).")
         })?;
     };
 
     println!("\nAdmin PIN has been set.");
+    Ok(())
 }
 
-        PinSubCommand::ResetUser {
-            admin_pin,
-            user_pin_new,
-        } => {
+fn reset_user(
+    admin_pin: Option<PathBuf>,
+    user_pin_new: Option<PathBuf>,
+    mut open: Open,
+) -> Result<()> {
     // verify admin pin
     match util::get_pin(&mut open, admin_pin, ENTER_ADMIN_PIN) {
         Some(admin_pin) => {
@@ -196,12 +231,14 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
     } else {
         println!("\nUser PIN has been set.");
     }
+    Ok(())
 }
 
-        PinSubCommand::SetReset {
-            admin_pin,
-            reset_code,
-        } => {
+fn set_reset(
+    admin_pin: Option<PathBuf>,
+    reset_code: Option<PathBuf>,
+    mut open: Open,
+) -> Result<()> {
     // verify admin pin
     match util::get_pin(&mut open, admin_pin, ENTER_ADMIN_PIN) {
         Some(admin_pin) => {
@@ -226,15 +263,17 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
     if let Some(mut admin) = open.admin_card() {
         admin.set_resetting_code(&code)?;
         println!("\nResetting code has been set.");
+        Ok(())
     } else {
-                return Err(anyhow::anyhow!("Failed to use card in admin-mode.").into());
-            };
+        Err(anyhow::anyhow!("Failed to use card in admin-mode.").into())
+    }
 }
 
-        PinSubCommand::ResetUserRc {
-            reset_code,
-            user_pin_new,
-        } => {
+fn reset_user_rc(
+    reset_code: Option<PathBuf>,
+    user_pin_new: Option<PathBuf>,
+    mut open: Open,
+) -> Result<()> {
     // reset by presenting resetting code
 
     let rst = if let Some(path) = reset_code {
@@ -261,7 +300,5 @@ pub fn pin(ident: &str, cmd: PinSubCommand) -> Result<()> {
         }
         Ok(_) => println!("\nUser PIN has been set."),
     }
-        }
-    }
     Ok(())
 }