Wait for the LF when a chunk-size line splits on the CR#912
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A chunked response failed with {error, invalid_chunk_size} when the
CRLF ending a chunk-size line was split across two socket reads,
leaving the buffer on a lone \r. read_size/3 now treats that as
incomplete and waits for more data. te_chunked/2 also propagates the
errors of read_size/3 and read_chunk/2 instead of crashing with a
case_clause, and its spec now matches its real returns.
Fixes #901
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Fixes #901.
Chunked decoding failed with
{error, invalid_chunk_size}when the CRLF terminating a chunk-size line was split across two socket reads, leaving the parse buffer on a lone\r. Intermittent, more likely with large chunked bodies and TLS record fragmentation.read_size/3now treats the lone trailing\ras incomplete and waits for the\n.While validating, the failure on master turned out to be a
case_clausecrash rather than a clean error:te_chunked/2handled neitherread_size/3's error norread_chunk/2's{error, poorly_formatted_chunked_size}. Both now propagate throughtransfer_decode/2, and thete_chunked/2spec is corrected to its real returns.Tests drive the parser directly: the two split cases from the issue, an exhaustive split sweep of a two-chunk body with trailers at every byte position, and clean-error assertions for a malformed size line and chunk terminator.