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https://github.com/diegosouzapw/OmniRoute.git
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5eede28fa2
Extend the Claude empty-response detector in open-sse/utils/stream.ts to also catch an upstream connection that opens (HTTP 200) and closes having sent literally zero bytes -- no message_start at all. The existing hasClaudeAssistantLifecycle() gate only fired once a lifecycle event had been observed, so this shape silently completed the client stream with a 200 and no content instead of surfacing a 502, matching the reported symptom for claude-fable-5-max past ~1800 messages. New streamClaudeEmptyBody.ts module keeps the frozen stream.ts file size unchanged while adding the combined partial-lifecycle + truly-empty check.
35 lines
1.4 KiB
TypeScript
35 lines
1.4 KiB
TypeScript
/**
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* #12398 — decides whether a Claude-format stream must be aborted with an
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* upstream error at flush time because the client got no usable content.
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*
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* Covers two shapes:
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* - "partial lifecycle": message_start (and optionally message_delta /
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* message_stop) arrived but no content block ever did — this was already
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* correctly handled before #12398 and is preserved here unchanged.
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* - "truly empty": the upstream connection closed having sent literally
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* zero bytes (HTTP 200, not even a message_start). The lifecycle flags
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* above can never catch this shape since none of them are ever set — the
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* caller must additionally know whether ANY upstream chunk ever arrived.
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*
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* Callers must additionally require a Claude-format client (this function
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* does not take that flag — both call sites in stream.ts only ever reach
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* here already scoped to a Claude-format response).
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*/
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type ClaudeEmptyLifecycleLike = {
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hasError: boolean;
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hasContentBlock: boolean;
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hasMessageStart: boolean;
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hasMessageDelta: boolean;
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hasMessageStop: boolean;
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};
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export function shouldAbortEmptyClaudeStream(
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lifecycle: ClaudeEmptyLifecycleLike,
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sawAnyUpstreamPayload: boolean
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): boolean {
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if (lifecycle.hasError || lifecycle.hasContentBlock) return false;
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const hasPartialLifecycle =
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lifecycle.hasMessageStart || lifecycle.hasMessageDelta || lifecycle.hasMessageStop;
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return hasPartialLifecycle || !sawAnyUpstreamPayload;
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}
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