tools: Add a debug tool to read sandbox keyring

tools/keyring-fetcher/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "keyring-fetch"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+oo7 = {version = "0.1.0-alpha.5", features = ["tracing", "unstable", "async-std"]}
+async-std = "1.11.0"

tools/keyring-fetcher/src/main.rs

@@ -0,0 +1,39 @@
+use std::{collections::HashMap, path::PathBuf};
+
+#[async_std::main]
+async fn main() -> oo7::Result<()> {
+    let home = std::env::var("HOME").unwrap();
+    let keyring_path = [
+        &home,
+        ".var/app/com.belmoussaoui.Authenticator/data/keyrings/default.keyring",
+    ]
+    .iter()
+    .collect::<PathBuf>();
+
+    let host_keyring = oo7::dbus::Service::new(oo7::dbus::Algorithm::Encrypted).await?;
+    let collection = host_keyring
+        .with_alias("login")
+        .await?
+        .expect("'login' collection not found");
+
+    let items = collection
+        .search_items(HashMap::from([(
+            "app_id",
+            "com.belmoussaoui.Authenticator",
+        )]))
+        .await?;
+
+    let secret = items[0].secret().await?;
+    let keyring = oo7::portal::Keyring::load(keyring_path, &secret)
+        .await?;
+    
+    let keyring_items = keyring.items().await?;
+    for item in keyring_items.iter() {
+        let attributes = item.attributes();
+        let secret = item.secret();
+        println!("Found a secret: \nAttributes: {:#?}\nSecret: {:#?}", attributes, String::from_utf8_lossy(&secret));
+        println!("################################################");
+    }
+
+    Ok(())
+}