Skip the preamble in MultipartReader.#881
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fafhrd91 merged 1 commit intoaio-libs:masterfrom May 23, 2016
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This updates the MultipartReader to ignore the preamble of a multipart message. To quote the RFC: > There appears to be room for additional information prior to the first > boundary delimiter line and following the final boundary delimiter line. > These areas should generally be left blank, and implementations must > ignore anything that appears before the first boundary delimiter line or > after the last one. To do this, the MultipartReader now acts slightly differently at the beginning of the file. Instead of looking for a boundary and excepting if it doesn't find one, it will skip over the initial data looking for the first boundary and start reading from there. If it doesn't find any boundary, it will except similar to how it did before. Fixes aio-libs#880
Member
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@kxepal could you review? |
Member
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+1 |
Member
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Sorry for delay /: |
Member
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I wonder who does multipart generation with preamble? |
Member
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thanks! |
Contributor
Author
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For the record: the server that I found a preamble in was whatever taleo enterprise edition (http://www.oracle.com/us/products/applications/taleo/enterprise/overview/) uses. It wasn't a large preamble: just some extra CR-LF pairs. Seems like it's valid to have whatever you want in there though. |
Member
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@obmarg good to know, thanks! |
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What these changes does?
This updates the MultipartReader to ignore the preamble of a multipart
message. To quote the RFC:
To do this, the MultipartReader now acts slightly differently at the
beginning of the file. Instead of looking for a boundary and excepting
if it doesn't find one, it will skip over the initial data looking for
the first boundary and start reading from there.
If it doesn't find any boundary, it will except similar to how it did
before.
How to test your changes?
Parse some multipart responses.
Related issue number
Fixes #880
Checklist