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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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18
lua/cp/credentials.lua
View file

@ -7,37 +7,43 @@ local state = require('cp.state')
function M.login(platform)
platform = platform or state.get_platform()
if not platform then
logger.log('No platform specified. Usage: :CP login <platform>', vim.log.levels.ERROR)
logger.log(
'No platform specified. Usage: :CP login <platform>',
{ level = vim.log.levels.ERROR }
)
return
end
vim.ui.input({ prompt = platform .. ' username: ' }, function(username)
if not username or username == '' then
logger.log('Cancelled', vim.log.levels.WARN)
logger.log('Cancelled', { level = vim.log.levels.WARN })
return
end
vim.fn.inputsave()
local password = vim.fn.inputsecret(platform .. ' password: ')
vim.fn.inputrestore()
if not password or password == '' then
logger.log('Cancelled', vim.log.levels.WARN)
logger.log('Cancelled', { level = vim.log.levels.WARN })
return
end
cache.load()
cache.set_credentials(platform, { username = username, password = password })
logger.log(platform .. ' credentials saved', vim.log.levels.INFO, true)
logger.log(platform .. ' credentials saved', { level = vim.log.levels.INFO, override = true })
end)
end
function M.logout(platform)
platform = platform or state.get_platform()
if not platform then
logger.log('No platform specified. Usage: :CP logout <platform>', vim.log.levels.ERROR)
logger.log(
'No platform specified. Usage: :CP logout <platform>',
{ level = vim.log.levels.ERROR }
)
return
end
cache.load()
cache.clear_credentials(platform)
logger.log(platform .. ' credentials cleared', vim.log.levels.INFO, true)
logger.log(platform .. ' credentials cleared', { level = vim.log.levels.INFO, override = true })
end
return M