* Bound HTTP request timeouts and retry budget
With no request timeout, Retry(total=30, backoff_factor=2,
backoff_max=60) let a single unreachable server hang the client for
around 26 minutes: backoff sleeps alone sum to that, and each of the
30 connection attempts could itself stall indefinitely without a
timeout. Measured a black-holed connect attempt taking 75s on this
machine with no timeout set, confirming the mechanism.
- Add HTTP_TIMEOUT (connect, read) and a tighter retry budget
(HTTP_RETRY_TOTAL/BACKOFF_FACTOR/BACKOFF_MAX) in dsc/const.py,
bounding the worst case to a few minutes.
- Pass timeout=HTTP_TIMEOUT on both SeafileClient HTTP calls (token
fetch, remote library listing).
- Add NetworkError(DscError) so a network failure is caught by
start.py's existing top-level DscError handling instead of
producing a bare traceback.
- Add tests/test_http.py covering the retry policy values, timeout
propagation, and error wrapping.
- Check off the corresponding IMPROVEMENTS.md items.
* Include URL and status code in NetworkError messages
Copilot review on PR #28 flagged that the non-200 path for remote
library listing raised NetworkError with only the raw response body,
losing which request failed and its status code. The token-fetch
error had the same gap. Both now include the URL and HTTP status.
---------
Co-authored-by: Maxim Shulga <maxim.shulga@alludo.com>
Maksim ShulgaandMaxim Shulga
a2887fa6db