3 files changed, 22 insertions, 10 deletions
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 2b7413c8..0f0a2219 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -2314,9 +2314,9 @@ checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "libthermite"
-version = "0.7.1"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c4f076e602c8aa9ec99cd8b2d23cdf1606c27e5f04cba13aa61bdc50e678ee8"
+checksum = "c27ac02c14161a4b0db739b37618d929d7f2af320c1f993e3d674599f77b79e7"
 dependencies = [
  "flate2",
  "json5",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 0f7e0e34..36761d70 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -33,7 +33,7 @@ steamlocate = "2.0.0-beta.2"
 # Error messages
 anyhow = "1.0"
 # libthermite for Northstar/mod install handling
-libthermite = { version = "0.7.1", features = ["proton"] }
+libthermite = { version = "0.8.1", features = ["proton"] }
 # zip stuff
 zip = "0.6.2"
 # Regex
diff --git a/src-tauri/src/mod_management/mod.rs b/src-tauri/src/mod_management/mod.rs
index d5b5214e..ebbcf431 100644
--- a/src-tauri/src/mod_management/mod.rs
+++ b/src-tauri/src/mod_management/mod.rs
@@ -7,6 +7,7 @@ use thermite::prelude::ThermiteError;
 use crate::NorthstarMod;
 use anyhow::{anyhow, Result};
 use serde::{Deserialize, Serialize};
+use std::error::Error;
 use std::str::FromStr;
 use std::string::ToString;
 use std::{fs, path::PathBuf};
@@ -505,10 +506,14 @@ fn delete_older_versions(
 /// Checks whether some mod is correctly formatted
 /// Currently checks whether
 /// - Some `mod.json` exists under `mods/*/mod.json`
-fn fc_sanity_check(input: &&fs::File) -> bool {
+fn fc_sanity_check(input: &&fs::File) -> Result<(), Box<dyn Error + Send + Sync + 'static>> {
     let mut archive = match zip::read::ZipArchive::new(*input) {
         Ok(archive) => archive,
-        Err(_) => return false,
+        Err(_) => {
+            return Err(Box::new(ThermiteError::UnknownError(
+                "Failed reading zip file".into(),
+            )))
+        }
     };
 
     let mut has_mods = false;
@@ -538,14 +543,22 @@ fn fc_sanity_check(input: &&fs::File) -> bool {
                 if name.to_str().unwrap().contains(".dll") {
                     log::warn!("Plugin detected, prompting user");
                     if !plugins::plugin_prompt() {
-                        return false; // Plugin detected and user denied install
+                        return Err(Box::new(ThermiteError::UnknownError(
+                            "Plugin detected and install denied".into(),
+                        )));
                     }
                 }
             }
         }
     }
 
-    has_mods && mod_json_exists
+    if has_mods && mod_json_exists {
+        Ok(())
+    } else {
+        Err(Box::new(ThermiteError::UnknownError(
+            "Mod not correctly formatted".into(),
+        )))
+    }
 }
 
 // Copied from `libtermite` source code and modified
@@ -643,9 +656,8 @@ pub async fn fc_download_mod_and_install(
         Err(err) => {
             log::warn!("libthermite couldn't install mod {thunderstore_mod_string} due to {err:?}",);
             return match err {
-                ThermiteError::SanityError => Err(
-                    "Mod failed sanity check during install. It's probably not correctly formatted"
-                        .to_string(),
+                ThermiteError::SanityError(e) => Err(
+                    format!("Mod failed sanity check during install. It's probably not correctly formatted. {}", e)
                 ),
                 _ => Err(err.to_string()),
             };