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Posted to dev@hc.apache.org by "Ted Troccola (JIRA)" <ji...@apache.org> on 2011/03/06 10:33:46 UTC
[jira] Created: (HTTPCLIENT-1068) Ordering HttpClient Headers does
not seem possible
Ordering HttpClient Headers does not seem possible
--------------------------------------------------
Key: HTTPCLIENT-1068
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1068
Project: HttpComponents HttpClient
Issue Type: Wish
Components: HttpClient
Affects Versions: 4.1 Final
Environment: Windows 7, Java 1.6.0_21
Reporter: Ted Troccola
Priority: Minor
It seems impossible to have the HttpClient headers sent "before" the HttpRequest headers.
When inspecting the headers of the actual connection, these headers will appear BEFORE the HttpClient
headers.
For example, note the order the header values are set in the following code:
// Set the User-Agent value for the HttpClient
myHttpParams.setParameter(CoreProtocolPNames.USER_AGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322");
// Set the Accept-Language value for the request
request.addHeader(HttpHeaders.ACCEPT_LANGUAGE, "en-us,en;q=0.5");
// Upon execution, the request will send the headers in the following order
Accept-Language: en-us,en;q=0.5
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)
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[jira] Resolved: (HTTPCLIENT-1068) Ordering HttpClient Headers does
not seem possible
Posted by "Oleg Kalnichevski (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Oleg Kalnichevski resolved HTTPCLIENT-1068.
-------------------------------------------
Resolution: Not A Problem
Ted,
Please note that the HTTP spec does not require any particular ordering of HTTP message headers.
HttpCore maintains HTTP headers in their natural order. So, if you want HTTP headers arranged in any particular order you should make sure they are added to the message in that very order. Please note that some headers such as User-Agent can also be added to the outgoing message automatically by a protocol interceptor. Auto-generated headers usually appear after those added manually. You can impose a particular order for auto-generated headers by moving your protocol logic to a custom protocol interceptor. Protocol interceptors can be introduced to the protocol processing chain in a specific order, when desired
Hope this helps
Oleg
> Ordering HttpClient Headers does not seem possible
> --------------------------------------------------
>
> Key: HTTPCLIENT-1068
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1068
> Project: HttpComponents HttpClient
> Issue Type: Wish
> Components: HttpClient
> Affects Versions: 4.1 Final
> Environment: Windows 7, Java 1.6.0_21
> Reporter: Ted Troccola
> Priority: Minor
> Labels: httpclient
>
> It seems impossible to have the HttpClient headers sent "before" the HttpRequest headers.
>
> When inspecting the headers of the actual connection, these headers will appear BEFORE the HttpClient
> headers.
>
> For example, note the order the header values are set in the following code:
>
> // Set the User-Agent value for the HttpClient
> myHttpParams.setParameter(CoreProtocolPNames.USER_AGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322");
>
> // Set the Accept-Language value for the request
> request.addHeader(HttpHeaders.ACCEPT_LANGUAGE, "en-us,en;q=0.5");
>
> // Upon execution, the request will send the headers in the following order
>
> Accept-Language: en-us,en;q=0.5
> User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)
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