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xarmian
fa66181b88
* fix(webhooks): a DNS failure is retried, and a redirect may not turn the POST into a bodyless GET (BUG-3661, BUG-3662) BUG-3661: the owner path's pre-delivery URL check returned the resolver's error like a policy refusal, and attemptDeliver and checkRedirect made every validation error permanent, so a DNS timeout or SERVFAIL ended the endpoint's part in the event for good. The app path's dial turned resolver errors into ErrRefused, which attemptApp maps to permanent. Now ValidateWebhookURLContext returns a typed ResolveError from a lookup bound to the attempt's timeout (a seam, lookupIP), attemptDeliver and checkRedirect treat it as transient, and appfetch's dial returns resolver errors as a network error (ErrNotSent from Poster.Post: transient, unsent). Policy refusals stay permanent. BUG-3662: net/http follows a 301, 302 or 303 after a POST as a bodyless GET and keeps the headers, so the receiver got a GET with a signature for a body it never saw, and a 2xx was recorded as delivered. checkRedirect now refuses a hop that changes the method or drops the body (permanent: the receiver's configuration). 307 and 308 keep both and are followed. Tests: resolver failure transient at delivery, at a redirect and on the app poster, with policy controls staying permanent / refused; 301/302/303 refused without sending the GET; 307/308 deliver the POST with its body and signature. Each fix's mutant turns its test red. Claude-Session: https://claude.ai/code/session_01Q9WssCjFuHjSfLABoW4tmS * fix(webhooks): a dial the address screen refuses is permanent, and one deadline covers the whole attempt (BUG-3661, codex r1) Medium: screenDialAddr refusals (a DNS answer that changed between the URL check and the dial) were plain errors, so the Do error counted as transient and a policy refusal was retried. They now wrap errDialBlocked, which attemptDeliver treats as permanent. Low: the pre-delivery lookup had its own deliveryTimeout before the request got another; both now run under one attempt context. TestBUG3661_DialTimeBlockIsPermanent (validation sees a public answer, the dialer resolves localhost) is red with the classification removed. Claude-Session: https://claude.ai/code/session_01Q9WssCjFuHjSfLABoW4tmS