feat: convert WSL Linux paths to Windows UNC paths when opening binary files #215

New Issue

2026-03-11T19:11:55-07:00

hikari commented

2026-03-11 19:11:55 -07:00

Summary

Follow-up to #211. When clicking a binary file link (PDF, audio, Office doc, etc.) rendered by the MCP binary content handler, the frontend calls openPath(filePath) via the Tauri opener plugin.

This works correctly on Linux native, but fails on Windows/WSL because:

Claude Code (running inside WSL) saves files with Linux-style paths, e.g. /tmp/mcp_output_abc123.pdf
The Tauri app (running on Windows) cannot resolve /tmp/mcp_output_abc123.pdf — it needs the equivalent Windows UNC path, e.g. \\wsl.localhost\Ubuntu\tmp\mcp_output_abc123.pdf

The same limitation applies to the existing openPath usage in sessions.ts (PDF export).

Required Changes

Backend — new Tauri command `open_binary_file`

Add a Rust command that handles the path translation:

#[tauri::command]
pub async fn open_binary_file(path: String) -> Result<(), String> {
    #[cfg(target_os = "windows")]
    {
        // Convert Linux WSL path to Windows UNC path via `wslpath -w`
        let output = std::process::Command::new("wsl")
            .args(["wslpath", "-w", &path])
            .output()
            .map_err(|e| e.to_string())?;
        let windows_path = String::from_utf8_lossy(&output.stdout).trim().to_string();
        opener::open(&windows_path).map_err(|e| e.to_string())
    }
    #[cfg(not(target_os = "windows"))]
    {
        opener::open(&path).map_err(|e| e.to_string())
    }
}

Frontend — `Markdown.svelte`

Replace the direct openPath(filePath) call with an invoke("open_binary_file", { path: filePath }) call so the backend handles path translation.

Notes

wslpath -w is available wherever WSL is installed alongside the Tauri app
On non-Windows platforms the command falls through to opener::open unchanged
The same command could be used to fix sessions.ts PDF export on Windows/WSL

✨ This issue was created with help from Hikari~ 🌸

## Summary Follow-up to #211. When clicking a binary file link (PDF, audio, Office doc, etc.) rendered by the MCP binary content handler, the frontend calls `openPath(filePath)` via the Tauri opener plugin. This works correctly on **Linux native**, but **fails on Windows/WSL** because: - Claude Code (running inside WSL) saves files with Linux-style paths, e.g. `/tmp/mcp_output_abc123.pdf` - The Tauri app (running on Windows) cannot resolve `/tmp/mcp_output_abc123.pdf` — it needs the equivalent Windows UNC path, e.g. `\\wsl.localhost\Ubuntu\tmp\mcp_output_abc123.pdf` The same limitation applies to the existing `openPath` usage in `sessions.ts` (PDF export). ## Required Changes ### Backend — new Tauri command `open_binary_file` Add a Rust command that handles the path translation: ```rust #[tauri::command] pub async fn open_binary_file(path: String) -> Result<(), String> { #[cfg(target_os = "windows")] { // Convert Linux WSL path to Windows UNC path via `wslpath -w` let output = std::process::Command::new("wsl") .args(["wslpath", "-w", &path]) .output() .map_err(|e| e.to_string())?; let windows_path = String::from_utf8_lossy(&output.stdout).trim().to_string(); opener::open(&windows_path).map_err(|e| e.to_string()) } #[cfg(not(target_os = "windows"))] { opener::open(&path).map_err(|e| e.to_string()) } } ``` ### Frontend — `Markdown.svelte` Replace the direct `openPath(filePath)` call with an `invoke("open_binary_file", { path: filePath })` call so the backend handles path translation. ## Notes - `wslpath -w` is available wherever WSL is installed alongside the Tauri app - On non-Windows platforms the command falls through to `opener::open` unchanged - The same command could be used to fix `sessions.ts` PDF export on Windows/WSL ✨ This issue was created with help from Hikari~ 🌸

hikari referenced a pull request that will close this issue

2026-03-13 00:38:12 -07:00

feat: CLI v2.1.68–v2.1.74 compatibility updates #221

naomi closed this issue

2026-03-13 01:34:46 -07:00

naomi referenced this issue from a commit

2026-03-13 01:34:46 -07:00

feat: CLI v2.1.68–v2.1.74 compatibility updates (#221)

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dependencies/update--tauri-apps-plugin-fs

dependencies/update--tauri-apps-plugin-dialog

dependencies/update--codemirror-language

dependencies/update--codemirror-lang-yaml

dependencies/update-tailwindcss

dependencies/update--tailwindcss-vite

dependencies/update--vitest-coverage-v8

dependencies/update--codemirror-commands

dependencies/update--codemirror-state

dependencies/update-prettier-plugin-svelte

dependencies/update--codemirror-lang-javascript

dependencies/update-lucide-svelte

dependencies/update-marked

dependencies/update-typescript-eslint

dependencies/update-svelte

dependencies/update-eslint-plugin-svelte

dependencies/update--codemirror-view

dependencies/update-eslint

dependencies/update--eslint-js

dependencies/update--tauri-apps-cli

dependencies/update--sveltejs-kit

dependencies/update--tauri-apps-plugin-shell

dependencies/update--tauri-apps-api

dependencies/update-jsdom

dependencies/update-globals

dependencies/update-svelte-check

feat/providers

fix/paths

dependencies/update-vitest

dependencies/update-vite

dependencies/update-typescript

dependencies/update-prettier

dependencies/update--sveltejs-vite-plugin-svelte

dependencies/update--sveltejs-adapter-static

dependencies/update-codemirror

dependencies/update--tauri-apps-plugin-store

dependencies/update--tauri-apps-plugin-os

dependencies/update--tauri-apps-plugin-opener

dependencies/update--tauri-apps-plugin-notification

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Reference: nhcarrigan/hikari-desktop#215

feat: convert WSL Linux paths to Windows UNC paths when opening binary files #215

Summary

Required Changes

Backend — new Tauri command open_binary_file

Frontend — Markdown.svelte

Notes

Backend — new Tauri command `open_binary_file`

Frontend — `Markdown.svelte`