fix(mediafire): always schedule session token renewal - #3126
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- Set up the renewal cron regardless of whether the initial getSessionToken call succeeds; previously the cron was only created when that call failed, so a valid login cookie resulted in no renewal and the session token expired after about 10 minutes - Run the cron callback with context.Background() so renewals no longer depend on the initialization request context - Fall back to minting a fresh token from the login cookie when the stored token can no longer be renewed - Return an error from Init when neither minting nor renewing yields a valid token instead of silently reporting a working storage
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The renewal callback now runs for every normally initialized storage and mutates d.SessionToken from the cron goroutine while request handlers read the same field concurrently. This introduces a regular Go data race. Please synchronize access to the session token (for example with an RWMutex or accessor methods) before enabling unconditional background renewal.
- Add mu sync.RWMutex with a sessionToken() accessor for request goroutines and a setSessionToken() writer used by both getSessionToken and renewToken; storage persistence now happens inside the write lock - Replace direct d.SessionToken reads across all request handlers with the locked accessor, fixing the data race introduced by running the renewal cron for every normally initialized storage
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@jyxjjj Good catch, thank you! Fixed in 840d203:
The unconditional background renewal stays, since that's what fixes the ~10 minute token expiry — it's just synchronized now. Ready for another look when you have time. |
- Add a locked cookie() accessor: setCommonHeaders reads the login cookie on every API request while the renewal cron may rewrite it - Always schedule the renewal cron in Init; a transient mint/renew failure no longer leaves the storage without self-healing, and both failures are now logged instead of silently discarded - Cache the upload action token under the same mutex: Drop clears it safely against in-flight uploads, and uploads stop minting a fresh action token for every chunk - Return the locally minted token from getSessionToken and surface the gzip decompression error instead of swallowing it
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@jyxjjj Follow-up in 0ca3759, addressing the race beyond just
Happy to adjust if you'd like the locking split differently. |
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Sorry @jyxjjj , I'm here. To be honest, I have use AI to write this PR comment, and at PR body I have review and filled it correctly which I used and do. After every phase AI done coding, I have reviewed it, and I have only tell them to write comment, later I will pay attention to project policy, less lazy and not heavily reliant on AI |
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Init still returns nil when both minting and renewing the session token fail. This leaves the storage initialized without a valid token, despite the PR description stating that initialization should fail in this case.
cron.Stop() does not wait for an already-running callback to finish. Since the renewal callback also uses context.Background(), an in-flight renewal can continue after Drop() returns and later call setSessionToken() / persist the storage.
This also makes the comment that re-Init is serialized via Drop unsafe: Drop stops future ticks, but it does not synchronize with the currently running renewal.
…t a token - Return an error from Init when neither minting nor renewing yields a session token, so dead credentials surface at mount time instead of a storage that reports work but fails every token-dependent operation; the renewal cron stays scheduled so transient failures self-heal - Run the renewal callback on a driver-owned cancellable context instead of context.Background(), and add a sync.WaitGroup so Drop cancels, stops the cron, and waits for any in-flight renewal before returning; no renewal can overwrite the token or persist the storage after Drop or during a re-Init - Tear down any leftover renewal lifecycle at the very top of Init, covering paths that reach a second Init without a Drop in between (an update that emptied the Cookie, panic recovery in initStorage) - Rewrite the setSessionToken comment to state the actual guarantee, and document on stopRenewal that it relies on Cron.Stop blocking until the dispatch goroutine has exited - Log both the renew and mint errors when a cron renewal fails
- The get_session_token response only re-issues Cloudflare cookies (__cf_bm); the auth cookies (ukey, skey, session, user, cf_clearance) come from the login page and are never re-sent, so replacing the stored cookie with the response cookies dropped them on every successful mint - A storage kept working only while its session token stayed renewable; after a restart, or any gap that let the token expire, every mint returned 401 until the login cookie was re-entered manually - Merge fresh response cookies into the stored header so __cf_bm refreshes in place and the auth cookies survive every mint
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Thank you — and credit where due: all three points were valid, especially the Two commits pushed:
1. 2. The callback no longer runs on One thing I noticed while re-reading 3. Rewrote the About the extra commit ( Testing (Linux, Docker): 190 storages ran through many 6–9 minute renewal cycles with zero failures in the log; storage updates from the admin API exercised both the success and the error path; and after the cookie fix a full container restart brings all 190 storages back to Note: I partially used AI assistance for writing this comment. Everything referenced here — the commits, the debugging, and the test numbers — comes from my actual git history and testing on this PR. |
Summary / 摘要
MediaFire storages silently stop working about 10 minutes after being mounted: every operation that needs a live session token (uploads, uncached listings) starts failing with
failed to get action token: MediaFire action token failed:, while cached directory listings keep succeeding and mask the breakage.The root cause is in
Init: the token-renewal cron was only created inside the failure branch of the initialgetSessionTokencall. For a storage with a valid login cookie — the normal case — that call succeeds, so no cron was ever scheduled, and the freshly minted token simply expired ~10 minutes later.This change makes the renewal cron unconditional, so the token is refreshed every 6–9 minutes no matter how the first token was obtained:
The cron is now scheduled regardless of whether the initial
getSessionTokencall succeeded.The cron callback runs with
context.Background()instead of the initialization request context, whose cancellation previously killed all future renewals.When the stored token has already expired and
renewTokenfails, the driver falls back to minting a fresh token from the login cookie, which self-heals storages left in an expired state by an older build.Initnow returns an error when neither minting nor renewing yields a valid token. Previously therenewTokenerror was discarded and a storage with dead credentials was still reported aswork; now the storage status reflects reality.This PR has breaking changes.
/ 此 PR 包含破坏性变更。
This PR changes public API, config, storage format, or migration behavior.
/ 此 PR 修改了公开 API、配置、存储格式或迁移行为。
This PR requires corresponding changes in related repositories.
/ 此 PR 需要关联仓库同步修改。
Related repository PRs / 关联仓库 PR:
Related Issues / 关联 Issue
Relates to #1661 — the PR that introduced this driver together with the conditional renewal cron described above.
Testing / 测试
go test ./...Platform: Windows 11 x64, Go 1.27.1, server built from source with frontend dist v4.2.6.
Reproduction (before the fix):
failed to get action token: MediaFire action token failed:(the API rejected the expired token), while cached directory listings kept returning success and masked the failure.Init) fixed it temporarily — consistent with the renewal cron never having been scheduled.After the fix:
go build ./...andgo vet ./drivers/mediafire/are clean.go test ./drivers/mediafire/reports "no test files" (the package has no tests upstream). A fullgo test ./...on this toolchain hits pre-existingnon-constant format stringvet failures in several unrelated driver packages (189, 123, google_drive, google_photo, …) that are present on unpatchedmainas well, so the checkbox above is left unticked.refresh=true) and an upload viaPUT /api/fs/putboth succeeded; the uploaded file was confirmed present on MediaFire through an uncached listing and then removed through the API.work, and uncached listings keep succeeding per storage after the first renewal cycle.Checklist / 检查清单
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