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Excerpt

Known 

Pitfalls:

The payload is inaccessible when the "Content-Length" is absent or invalid.

Warc-Payload-Digest header is computed only on defined record payloads where the leading header has been read. This makes it a requirement for the WARC parser to identify and always parse the http response and not make it optional.

For GZip'ed records this is not a big problem since we know the record ends when the GZip entry ends.

For uncompressed records the payload input stream would have to look ahead for a valid WARC version line at which point the payload stream should be closed and the bytes read beyond that pushed back onto the internal streams.

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