Set Content-* Headers Within List Representation

[fr33r]

Description

When receiving the list representation in the response of a 406 Not Acceptable response during proactive negotiation, or in a response during reactive negotiation, the Content-* headers are not set appropriately.

Steps to Reproduce

1. Issue a request for an unsupported content type during proactive negotiation OR issue a request using reactive negotiation.

Expected Behavior

The following headers should be set appropriately:

• Content-Charset
• Content-Encoding
• Content-Language

Actual Behavior

freer > curl -K get_account.curl 127.0.0.1:8000/accounts/ea8123f6-f42c-4c3a-9a19-987229b42780 | jq .
HTTP/1.1 406 Not Acceptable
Content-Charset: 
Content-Encoding: 
Content-Language: 
Content-Length: 824
Content-Type: application/json
Date: Tue, 07 Apr 2020 05:11:15 GMT
{
  "representations": [
    {
      "contentType": "application/json",
      "contentLanguage": "en-US",
      "contentEncoding": [
        "identity"
      ],
      "contentLocation": "/accounts/ea8123f6-f42c-4c3a-9a19-987229b42780",
      "contentCharset": "ascii",
      "sourceQuality": 0
    },
    {
      "contentType": "application/yaml",
      "contentLanguage": "en-US",
      "contentEncoding": [
        "identity"
      ],
      "contentLocation": "/accounts/ea8123f6-f42c-4c3a-9a19-987229b42780",
      "contentCharset": "ascii",
      "sourceQuality": 0
    },
    {
      "contentType": "application/xml",
      "contentLanguage": "en-US",
      "contentEncoding": [
        "identity"
      ],
      "contentLocation": "/accounts/ea8123f6-f42c-4c3a-9a19-987229b42780",
      "contentCharset": "ascii",
      "sourceQuality": 0
    },
    {
      "contentType": "application/json",
      "contentLanguage": "en-US",
      "contentEncoding": [
        "gzip"
      ],
      "contentLocation": "/accounts/ea8123f6-f42c-4c3a-9a19-987229b42780",
      "contentCharset": "ascii",
      "sourceQuality": 0
    }
  ]
}

Versions

• go version go1.12.9 linux/amd64
• github.com/freerware/negotiator v0.1.0