From 439958c6d3607f108e9391cf74f6c37b5bbd9812 Mon Sep 17 00:00:00 2001
From: Mike Dilger <mike@mikedilger.com>
Date: Wed, 4 Jan 2023 16:35:54 +1300
Subject: [PATCH] Deletion of identity

---
 README.md     |  2 +-
 src/signer.rs | 21 +++++++++++++++++++++
 src/ui/you.rs | 24 ++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7d4c61ed..6145e675 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ As of right now you can (if you aren't stopped by some bug):
 - [x] **Creting content**
     - [x] Generating a key that is kept securely within the client encrypted under a password that you need to unlock it every time you start the client.
     - [x] Generate or import (hex or bech32) a private key (your identity) (also kept under a password)
-    - [x] Exporting your private key encrypted, or decrypted as bech32 or hex
+    - [x] Exporting your private key encrypted, or decrypted as bech32 or hex, or delete your identity
     - [x] Choose relays to post to (from among some starting relays, plus ones the client has seen in events), including entering a relay URL directly.
     - [x] Post root-level text messages
     - [x] Post replies to other people's text messages
diff --git a/src/signer.rs b/src/signer.rs
index 9a64e198..9e05721f 100644
--- a/src/signer.rs
+++ b/src/signer.rs
@@ -129,4 +129,25 @@ impl Signer {
             _ => Err(Error::NoPrivateKey),
         }
     }
+
+    pub fn delete_identity(&mut self, pass: &str) -> Result<(), Error> {
+        match self {
+            Signer::Ready(_, epk) => {
+                // Verify their password
+                let _pk = epk.decrypt(pass)?;
+
+                // Delete from database
+                let mut settings = GLOBALS.settings.blocking_write();
+                settings.encrypted_private_key = None;
+                task::spawn(async move {
+                    if let Err(e) = settings.save().await {
+                        tracing::error!("{}", e);
+                    }
+                });
+                *self = Signer::Fresh;
+                Ok(())
+            }
+            _ => Err(Error::NoPrivateKey),
+        }
+    }
 }
diff --git a/src/ui/you.rs b/src/ui/you.rs
index a6a6da39..ff9d07a4 100644
--- a/src/ui/you.rs
+++ b/src/ui/you.rs
@@ -108,6 +108,30 @@ pub(super) fn update(app: &mut GossipUi, _ctx: &Context, _frame: &mut eframe::Fr
             app.password.zeroize();
             app.password = "".to_owned();
         }
+
+        ui.add_space(10.0);
+        ui.separator();
+        ui.add_space(10.0);
+        ui.heading("DELETE This Identity");
+
+        ui.horizontal(|ui| {
+            ui.add_space(10.0);
+            ui.label("Enter Password To Delete: ");
+            ui.add(TextEdit::singleline(&mut app.password).password(true));
+        });
+
+        if ui.button("DELETE (Cannot be undone!)").clicked() {
+            match GLOBALS
+                .signer
+                .blocking_write()
+                .delete_identity(&app.password)
+            {
+                Ok(_) => app.status = "Identity deleted.".to_string(),
+                Err(e) => app.status = format!("{}", e),
+            }
+            app.password.zeroize();
+            app.password = "".to_owned();
+        }
     } else if GLOBALS.signer.blocking_read().is_loaded() {
         ui.heading("Password Needed");