unsloth/studio/backend/utils
Daniel Han 76cbddb859
Studio: allow --secure with --api-only (headless secure API server) and add --api-only to unsloth studio run (#6591)
* Studio: start the Cloudflare tunnel for --secure even in --api-only, and add --api-only to `unsloth studio run`

--secure exposes ONLY the Cloudflare link (it forces a loopback bind), but
_cloudflare_tunnel_should_start gated the tunnel on `not api_only`, so
`run.py --secure --api-only` started no tunnel and then fail-closed with
"A secure Cloudflare link is not allowed". That blocked the natural headless
use: serve just the API (no web UI) over the authenticated tunnel.

Make --secure start the tunnel regardless of api_only (the non-secure path is
unchanged: tunnel only a 0.0.0.0 bind, never api-only Tauri or Colab). Then
expose --api-only on `unsloth studio run` and forward it through both the
re-exec args and the in-venv run_server call, so
`unsloth studio run --secure --api-only --model ...` is a one-liner secure API
server.

Verified end to end: `run.py --secure --api-only` now brings up the tunnel and
serves /api/health over it (200), with / returning 404 (no UI).

Tests: update the tunnel-gate truth table (secure+api-only now tunnels;
secure+colab still does not) and add --api-only registration + re-exec/in-venv
forwarding coverage to the run CLI tests.

* Trim comments to be succinct (no behavior change)

* studio: address review on parent --api-only and secure api-only CORS

- Reject --api-only on the parent `unsloth studio` group when a subcommand
  is invoked, with the same redirect guidance used for --parallel/--secure;
  otherwise the flag was silently dropped and the UI served anyway.
- Keep CORS any-origin for secure api-only serving: that mode publishes the
  API over Cloudflare for remote browser clients, so the Tauri-only lockdown
  (still applied to plain local api-only) would break preflight. Factored the
  decision into cors_origins_for_mode() and gate it on api_only and not secure;
  run_server exports UNSLOTH_SECURE before importing main.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* studio: suppress TAURI_PORT and de-dup test for headless run --api-only

- run_server gains emit_tauri_port (default True, unchanged for the Tauri/
  desktop path). The new headless `run --api-only` path passes False so the
  Tauri-only TAURI_PORT= line no longer prepends the documented URL/API key
  banner (it ran even under --silent and could break one-liner parsers).
- Remove a duplicate test_reexec_forwards_api_only that shadowed the
  parametrized one; fold the --secure --api-only case into it so the secure
  headless path is actually collected.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-23 05:44:56 -07:00
..
datasets Add Hugging Face dataset streaming mode to Studio (#4946) 2026-06-22 17:48:18 +03:00
hardware Studio: fix tier detection for models loaded via custom folder path (#6396) 2026-06-22 05:40:39 -07:00
inference Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
models Fix Studio export checkpoint ordering (#6602) 2026-06-23 12:25:53 +01:00
paths Studio: honor custom HF_HOME for model download and load (#6510) 2026-06-22 08:21:59 -07:00
security Studio: persistent per-user trust_remote_code approval cache (#6551) 2026-06-22 05:12:49 -07:00
.gitkeep root studio folder 2026-02-02 09:13:49 +00:00
__init__.py Final cleanup 2026-03-12 18:28:04 +00:00
_studio_release_build.py Add Studio web update banner and release version display (#5308) 2026-05-11 18:24:01 +04:00
api_errors.py Studio: improve OpenAI- and Anthropic-compatible API spec compliance (#6010) 2026-06-09 17:13:25 +02:00
cache_cleanup.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
cpu_threads.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
downsample.py Formatting: ruff line-length 100, kwarg-spacing passes, drop blank after short local imports (#6079) 2026-06-08 04:24:13 -07:00
helper_precache_settings.py Studio: make Helper LLM startup pre-cache opt in (#6113) 2026-06-09 15:28:34 +02:00
hf_xet_fallback.py Reap Studio child processes when the parent dies abnormally (#6425) 2026-06-18 05:51:22 -07:00
host_policy.py Studio: allow --secure with --api-only (headless secure API server) and add --api-only to unsloth studio run (#6591) 2026-06-23 05:44:56 -07:00
lifespan_shutdown.py Studio: make lifespan shutdown resilient to a dead default executor (#6307) 2026-06-15 22:51:46 -07:00
llama_cpp_freshness.py Studio: stop the llama.cpp update banner flickering and show the download size (#6338) 2026-06-17 21:28:54 -07:00
llama_cpp_update.py Tighten comments for PR #6493 (#6539) 2026-06-21 05:49:07 -07:00
mlx_repair.py Studio macOS: faster startup, MLX self-heal, drop obsolete prebuilt pins (#6494) 2026-06-22 02:20:08 -07:00
native_path_leases.py Reap Studio child processes when the parent dies abnormally (#6425) 2026-06-18 05:51:22 -07:00
node_runtime.py Studio: use an isolated Node.js for the frontend build instead of replacing the system Node/npm (#6533) 2026-06-21 21:17:29 -07:00
personalization_settings.py studio: persist personalization (profile, avatar, theme) server-side (#6516) 2026-06-22 04:09:48 -07:00
process_lifetime.py Reap Studio child processes when the parent dies abnormally (#6425) 2026-06-18 05:51:22 -07:00
ssm_runtime.py Auto-install SSM kernels (causal-conv1d, mamba-ssm) for inference loads (#6535) 2026-06-22 04:48:29 -07:00
studio_version.py Studio: llama.cpp update banner redesign, About tab license info, UI polish (#6196) 2026-06-11 09:27:34 -07:00
subprocess_compat.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
transformers_version.py Generalize transformers tier selection by probing AutoConfig (#6550) 2026-06-22 08:20:06 -07:00
update_status.py Studio: make code comments and docstrings more succinct (#6029) 2026-06-08 23:07:28 -07:00
upload_limits.py Formatting: ruff line-length 100, kwarg-spacing passes, drop blank after short local imports (#6079) 2026-06-08 04:24:13 -07:00
utils.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
wheel_utils.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00