[jira] [Created] (CAMEL-11509) Cannot set content type with parameters without specifying charset

["Steffen F. (JIRA)" <ji...@apache.org>]

Steffen F. created CAMEL-11509:
----------------------------------

             Summary: Cannot set content type with parameters without specifying charset
                 Key: CAMEL-11509
                 URL: https://issues.apache.org/jira/browse/CAMEL-11509
             Project: Camel
          Issue Type: Bug
          Components: camel-http4
    Affects Versions: 2.19.1, 2.19.0
            Reporter: Steffen F.


When setting a content type that does not contain a charset parameter, for example this:

{noformat}
.setHeader("Content-Type", constant("application/json;odata=verbose"))
{noformat}

the route will fail with the following exception:

{noformat}
java.lang.IllegalArgumentException: MIME type may not contain reserved characters
	at org.apache.http.util.Args.check(Args.java:36)
	at org.apache.http.entity.ContentType.create(ContentType.java:206)
	at org.apache.http.entity.ContentType.create(ContentType.java:218)
	at org.apache.camel.component.http4.HttpProducer.createRequestEntity(HttpProducer.java:511)
{noformat}

although this is clearly a valid content type according to the RFC: https://tools.ietf.org/html/rfc2045#section-5.1

This only affects version 2.19+, because in version 4.4.6 of the httpcomponents-core library, they changed the behavior of {{create}} to check the mime type for semicolons, which it previously didn't. If we, however, also use a charset parameter, you will call the {{parse}} method instead:

{noformat}
if (contentTypeString != null) {
    if (contentTypeString.indexOf("charset") > 0) {
        contentType = ContentType.parse(contentTypeString);
    } else {
        contentType = ContentType.create(contentTypeString);
    }
}
{noformat}

There can be all kind of different parameters, though. Instead of checking for charset, it should rather check for the existence of a semicolon. 



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