hc-httpclient-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Oleg Kalnichevski <ol...@apache.org>
Subject Re: Cannot transmit a SWA response with a large attachment (HttpEntity can't chunk multipart)
Date Mon, 05 Jun 2017 14:58:04 GMT
On Mon, 2017-06-05 at 14:39 +0000, Dan Wlodarski wrote:
> Running the sample server code on Netbeans v8.1 with SoapUI v5.3.0 as

...

>  
> 
> Please note the missing Content-Type HTTP header.
> 

Did you set a Content-Type header on the response entity?

Oleg


> The Content-Type header is also missing from the response in my own
> curl 
> v7.53.0 tests.
> 
> The additional testing and verification is appreciated.
> 
> -----Original Message-----
> From: Oleg Kalnichevski [mailto:olegk@apache.org]
> Sent: Monday, June 5, 2017 10:15
> To: HttpClient User Discussion <httpclient-users@hc.apache.org>
> Subject: Re: Cannot transmit a SWA response with a large attachment 
> (HttpEntity can't chunk multipart)
> 
> On Mon, 2017-06-05 at 14:07 +0000, Dan Wlodarski wrote:
> > I've tried that solution previously. The result is a missing
> > initial
> > HTTP header. The transmission begins at the MIME multipart border.
> > 
> 
> I see no evidence supporting this assertion.
> 
> Oleg
> 
> ---
> oleg@ok2c:~$ curl -X POST http://localhost:8080/ -v
> *   Trying ::1...
> * TCP_NODELAY set
> * Connected to localhost (::1) port 8080 (#0)
> > POST / HTTP/1.1
> > Host: localhost:8080
> > User-Agent: curl/7.52.1
> > Accept: */*
> > 
> 
> < HTTP/1.1 200 OK
> < Date: Mon, 05 Jun 2017 14:13:23 GMT
> < Server: Test/1.1
> < Content-Length: 678
> < Content-Type: multipart/form-data; 
> boundary=PLjXq6xrj2ONaDdnyMPLBEnpkMqZA9Wmjw23
> <
> --PLjXq6xrj2ONaDdnyMPLBEnpkMqZA9Wmjw23
> Content-Disposition: form-data; name="SOAP Envelope"
> Content-Type: application/xml; charset=ISO-8859-1
> Content-Transfer-Encoding: 8bit
> 
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/enve
> lope/">;;
>    <soapenv:Header/>
>    <soapenv:Body>
>       <AResponse>
>          <ResponseFile>/home/oleg/blah.txt</ResponseFile>
>       </AResponse>
>    </soapenv:Body>
> </soapenv:Envelope>
> --PLjXq6xrj2ONaDdnyMPLBEnpkMqZA9Wmjw23
> Content-Disposition: form-data; name="/home/oleg/blah.txt"; 
> filename="blah.txt"
> Content-Type: application/octet-stream
> Content-Transfer-Encoding: binary
> 
> blah
> 
> --PLjXq6xrj2ONaDdnyMPLBEnpkMqZA9Wmjw23--
> * Curl_http_done: called premature == 0
> * Connection #0 to host localhost left intact
> ---
> 
> > Pastebin source (https://pastebin.com/2Hzdhpt3) has been updated
> > for
> > further error replication.
> > 
> > -----Original Message-----
> > From: Oleg Kalnichevski [mailto:olegk@apache.org]
> > Sent: Monday, June 5, 2017 07:14
> > To: HttpClient User Discussion <httpclient-users@hc.apache.org>
> > Subject: Re: Cannot transmit a SWA response with a large attachment
> > (HttpEntity can't chunk multipart)
> > 
> > On Sun, 2017-06-04 at 15:03 +0000, Dan Wlodarski wrote:
> > > To whom it may concern:
> > > 
> > > Issue: HttpClient API does not support chunking multipart
> > > HttpEntities.
> > > Clients making SOAP requests to a mock SOAP with attachments
> > > (SWA)
> > > server are failing (specifically, Apache-based Java clients are
> > > throwing
> > > org.apache.http.NoHttpResponseExceptions) when the attachment in
> > > the
> > > response is large (>2 MiB). Small attachments are transmitted
> > > without throwing any exceptions. HTTP Content-Length header is
> > > correct.
> > > 
> > > Use case: Multithreaded SOAP server capable of transmitting SWA
> > > responses of arbitrary content length
> > > 
> > > Libraries: HttpCore v4.4.6 + HttpMime v4.5.3
> > > 
> > > Example server source for error replication is available at:
> > > https://pastebin.com/2Hzdhpt3
> > > 
> > > Error replication:
> > > 1. Build the above source with HttpCore v4.4.6 and HttpMime
> > > v4.5.3
> > > libraries (HttpMime is part of the HttpClient project).
> > > 2. Run the program with a sufficiently large (>2 MiB) binary file
> > > named "random.png.gz" with correct pathing and permissions (a
> > > readable directory sibling of the executable).
> > > 3. Send the server an arbitrary HTTP POST request via some third-
> > > party client. Note the failure to receive the large server-
> > > generated multipart result.
> > > 
> > > NB: SoapUI can be leveraged as an Apache-based Java client with
> > > precision logging.
> > > 
> > > Please advise.
> > > 
> > 
> > Dan,
> > 
> > You are mixing up non-blocking i/o transport and a blocking i/o
> > entity
> > implementation. This is generally a bad idea as it cannot be done
> > efficiently without full or partial content buffering in memory.
> > 
> > If do not mind buffering the entire entity in memory, you can
> > replace
> > ---
> > response.setEntity(responseEntity);
> > ---
> > 
> > with
> > 
> > ---
> > final ByteArrayOutputStream out = new ByteArrayOutputStream();
> > responseEntity.writeTo(out); response.setEntity(new
> > ByteArrayEntity(out.toByteArray()));
> > ---
> > 
> > and your code will work just fine.
> > 
> > Oleg
> > 
> > 
> > > Thanks,
> > > 
> > > Dan C. Wlodarski
> > > The Design Knowledge Company
> > > 3100 Presidential Drive
> > > Suite 103
> > > Fairborn, Ohio 45324
> > > 
> > > Phone: 937-427-4276 x175
> > > Fax: 937-427-1242
> > > dwlodarski@tdkc.com
> > > www.tdkc.com
> > > 
> > > P.S. This issue was originally submitted on 30 May, but did not
> > > appear in the archives. Assumed dropped.
> > > 
> > > 
> > > -----------------------------------------------------------------
> > > ----
> > > To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.or
> > > g
> > > For additional commands, e-mail: httpclient-users-help@hc.apache.
> > > or
> > > g
> > > 
> > 
> > -----------------------------------------------------------------
> > ----
> > To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> > For additional commands, e-mail: httpclient-users-help@hc.apache.or
> > g
> > 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> For additional commands, e-mail: httpclient-users-help@hc.apache.org
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
For additional commands, e-mail: httpclient-users-help@hc.apache.org


Mime
View raw message