Actually the request doesn't look like a "Transfer-Encoding" chunked.
Request. It's a special "encoding" of AWS S3. So you need to create your
own parser for that.
Am Donnerstag, 23. Juni 2016 21:33:44 UTC+2 schrieb A.i.:
>
> Hi, we are creating an http service based on akka, and encountered a
> problem related to handling an invalid http request, but I hope akka
> experts can quickly point to a good solution. So:
>
> we need to handle a PUT request from a client which sends chunked entity
> ~without~ specifying Transfer-Encoding header field but ~with~
> Content-Length (hello AWS S3 SDK). This results in akka considering this
> request a regular one (not chunked) and therefore not attempting to unchunk
> it and returning raw bytes including chunk delimiters etc. for the entity.
> Technically akka's behavior is correct - from HTTP point this request is
> not chunked. Still, we need to parse this chunked body, and its format
> matches HTTP chunking and we would like to reuse akka's chunking support to
> handle this data if possible.
>
> And before writing our own chunked entity parser, I am wondering if
> following options are possible:
>
> - coercing akka into treating an entity as chunked, even though original
> request does not have Transfer-Encoding and does have Content-Length field.
> looks like decision on whether to use chunked entity is made in
> HttpRequestParser class. The logic seems to be hardcoded to use chunked
> entity iff Transfer-Encoding: chunked header field is present. Also the
> code would emit a failure if Content-Length field is present. Maybe there
> is a way to inject this field into http request before HttpRequestParser
> gets it?
>
> - using existing facility from akka to unchunk a chunked http body
> chunked entity parsing is happening in HttpMessageParser class, but it
> is private. Is it possible to somehow reuse akka's parser for http chunked
> body?
>
> - any other way of getting unchunked bytes using akka functionality?
>
> Sample request which needs to be handled below (the bytes it is trying to
> transfer are:
> abcdefghijklmnopqrstuvwxyz
> 01234567890112345678901234
> !@#$%^&*()-=[]{};':',.<>/?
> 01234567890112345678901234
> abcdefghijklmnopqrstuvwxyz):
>
>
> PUT /n-b-n-o/objectname0 HTTP/1.1
> Host: 127.0.0.1:1234
> x-amz-content-sha256: STREAMING-AWS4-HMAC-SHA256-PAYLOAD
> Authorization: ...
> X-Amz-Date: 20170616T205827Z
> Content-Encoding: text/plain
> User-Agent: aws-sdk-java/1.10.67 Linux/2.6.18-308.4.1.el5
> Java_HotSpot(TM)_64-Bit_Server_VM/25.73-b02/1.8.0_73
> amz-sdk-invocation-id: d1bcc96f-3cd2-421e-8323-6b1dfac9552c
> x-amz-decoded-content-length: 135
> amz-sdk-retry: 0/0/
> Content-Type: application/octet-stream
> Content-Length: 308
> Connection: Keep-Alive
> Expect: 100-continue
>
>
> 87;chunk-signature=4ecb554ecb327a19beba7528233fe6575ea31f1a2d0a8a84a57e1676fb21153b
> abcdefghijklmnopqrstuvwxyz
> 01234567890112345678901234
> !@#$%^&*()-=[]{};':',.<>/?
> 01234567890112345678901234
> abcdefghijklmnopqrstuvwxyz
>
>
> 0;chunk-signature=0256bdb04c3ad7de9392781ea8ea8fe3e3bcff89713754e0e1869aeac5adc75f
>
>
> Thanks!
>
>
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