Better error handling in get_app_token

Cargo.lock

@@ -1831,7 +1831,7 @@ checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
 [[package]]
 name = "isideload"
-version = "0.2.9"
+version = "0.2.10"
 dependencies = [
  "aes 0.9.0-rc.4",
  "aes-gcm",

isideload/Cargo.toml

@@ -3,7 +3,7 @@ name = "isideload"
 description = "Sideload iOS/iPadOS applications"
 license = "MIT"
 authors = ["Nicholas Sharp <nab@nabdev.me>"]
-version = "0.2.9"
+version = "0.2.10"
 edition = "2024"
 repository = "https://github.com/nab138/isideload"
 documentation = "https://docs.rs/isideload"

isideload/src/auth/apple_account.rs

@@ -6,7 +6,7 @@ use crate::{
         builder::AppleAccountBuilder,
         grandslam::{GrandSlam, GrandSlamErrorChecker},
     },
-    util::plist::PlistDataExtract,
+    util::plist::{PlistDataExtract, SensitivePlistAttachment},
 };
 use aes::{
     Aes256,
@@ -440,7 +440,7 @@ impl AppleAccount {
 
         let verifier = srp_client
             .process_reply(&a, self.email.as_bytes(), &password_buf, salt, b_pub)
-            .unwrap();
+            .context("Failed to compute SRP proof")?;
 
         let req2 = plist!(dict {
             "Header": {
@@ -534,7 +534,8 @@ impl AppleAccount {
         let c = spd.get_data("c").context("Failed to get app token")?;
 
         let checksum = Hmac::<Sha256>::new_from_slice(session_key)
-            .unwrap()
+            .context("Failed to create HMAC for app token checksum")
+            .attach_with(|| SensitivePlistAttachment::new(spd.clone()))?
             .chain_update("apptokens".as_bytes())
             .chain_update(dsid.as_bytes())
             .chain_update(app.as_bytes())
@@ -604,6 +605,8 @@ impl AppleAccount {
                 .context("Failed to get app token expiry")? as u64,
         };
 
+        info!("Successfully retrieved app token for {}", app);
+
         Ok(app_token)
     }