Curl Server setup issue

Add-Ons
1

I am using CurlSMBS to communicate with a client’s server. Who is preparing for a server update now, and we found we had to change some SSL settings to make them talk happily with each other again.

app → Server looks good:

10:57:03 curl debug (Text) : using HTTP/1.x
10:57:03 ServerPost 0%

    0/0
    0/0
    10:57:03 curl debug (Header sent) : POST /server HTTP/1.1
    Host: *2.*com
    Accept: /
    Transfer-Encoding: chunked
    Content-Type: application/x-www-form-urlencoded
    Expect: 100-continue
    10:57:03 curl debug (Text) : TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
    10:57:03 Server (title): OK
    10:57:03 URL https://2..com/*2/en/quickcheck
    10:57:03 curl debug (Header received) : HTTP/1.1 100 Continue
    10:57:03 curl debug (Header received)
    10:57:03 curl debug (Protocol data out) : 368
    |10:57:03|curl debug (Text) : upload completely sent off: 884 bytes|
    |—|—|

So protocol is agreed upon, all data sent.
But then this happens:

|10:57:03|curl debug (Header received) : HTTP/1.1 500 Internal Server Error|

And the response will come in as an error result from the server.
Any ideas what might be the cause?

2

Well, the application on the server doesn’t like what you sent.

Does it send more back like an error message?

3

Yes, but it does not give me much information:

10:56:25 ServerPost 0%
    0/0
    0/0
10:56:25 ServerPost 0%
    1210/0
    0/0
10:56:25 Server Response:<?xml version=1.0 encoding=UTF-8?><SOAP-ENV:Envelope xmlns:SOAP-ENV=http://schemas.xmlsoap.org/soap/envelope/>SOAP-ENV:BodySOAP-ENV:FaultSOAP-ENV:ClientBad Request</SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>
4

With the old server setup, the same curl message gets a positive response.

5

If you do SOAP, you can’t use “Content-Type: application/x-www-form-urlencoded” as content type. You need something like “Content-Type: application/soap+xml;charset=UTF-8;action="urn:xxx"” ) with the right soap action there.

6

Oh, thank you! I will forward that to the server admin. It’s his presets I am using.

7

In this case, it were different headers I had to introduce, and turn off Transfer-Encoding. Thank you for directing us in the right direction!