portl4t created TS-3253:
---------------------------
Summary: Don't chunk response body if transform_response_cl is
valid
Key: TS-3253
URL: https://issues.apache.org/jira/browse/TS-3253
Project: Traffic Server
Issue Type: Improvement
Components: Core, HTTP
Reporter: portl4t
The way as I see, the client will get chunked response from ATS if the origin
server issues a chunked response to ATS.
I am wondering whether this can be changed if there is a transfrom plugin
exists and the transform can insure transform_response_cl is valid. This can be
done by TSVConnWrite(...) with a valid nbytes(not INT64_MAX) in transform
handler.
Here is an example, I want to response "abcdefg" in transform handler, no
matter what is received from upstream, and I can write code like this is
plugins:
{code}
static int transform_handler(...)
{
...
output.buffer = TSIOBufferCreate();
output.reader = TSIOBufferReaderAlloc(output.buffer);
output.vio = TSVConnWrite(output_conn, contp, output.reader,
sizeof("abcdefg")-1);
TSIOBufferWrite(ytc->output.buffer, "abcdefg", sizeof("abcdefg")-1);
TSVIOReenable(output.vio);
...
}
{code}
However, the response body to the client will be chunked if ATS got chunked
response from origin server. Maybe we can change this by refining the function
HttpTransact::handle_response_keep_alive_headers(...)
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