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fix(submit): use file path over stdin; fix CF CodeMirror textarea (#305)

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## Problem

After the initial submit hardening, two issues remained: source code was
read in Lua and piped as stdin to the scraper (unnecessary roundtrip
since
the file exists on disk), and CF's `page.fill()` timed out on the hidden
`textarea[name="source"]` because CodeMirror owns the editor state.

## Solution

Pass the source file path as a CLI arg instead — AtCoder calls
`page.set_input_files(file_path)` directly, CF reads it with
`Path(file_path).read_text()`. Fix CF source injection via
`page.evaluate()`
into the CodeMirror instance. Extract `BROWSER_SUBMIT_NAV_TIMEOUT` as a
per-platform `defaultdict` (CF defaults to 2× nav timeout). Save the
buffer
with `vim.cmd.update()` before submitting.
This commit is contained in:
Barrett Ruth 2026-03-05 14:34:14 -05:00 • committed by GitHub
parent 127089c57f
commit a202725cc5
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28 changed files with 269 additions and 168 deletions
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6
scrapers/timeouts.py
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@ -1,7 +1,13 @@
from collections import defaultdict
HTTP_TIMEOUT = 15.0
BROWSER_SESSION_TIMEOUT = 15000
BROWSER_NAV_TIMEOUT = 10000
BROWSER_SUBMIT_NAV_TIMEOUT: defaultdict[str, int] = defaultdict(
lambda: BROWSER_NAV_TIMEOUT
)
BROWSER_SUBMIT_NAV_TIMEOUT["codeforces"] = BROWSER_NAV_TIMEOUT * 2
BROWSER_TURNSTILE_POLL = 5000
BROWSER_ELEMENT_WAIT = 10000
BROWSER_SETTLE_DELAY = 500