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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HTTPCLIENT-655) User-Agent string violates RFC
Date Wed, 06 Jun 2007 21:15:26 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Oleg Kalnichevski updated HTTPCLIENT-655:
-----------------------------------------

    Fix Version/s: 4.0 Alpha 2

> User-Agent string violates RFC
> ------------------------------
>
>                 Key: HTTPCLIENT-655
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-655
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 3.1 RC1
>            Reporter: Ortwin Gl├╝ck
>            Priority: Minor
>             Fix For: 4.0 Alpha 2
>
>
> Our User-Agent says "Jakarta Commons-HttpClient/3.1-rc1". But space is a reserved character
to separate individual *products* and comments according to RFC 2616, section 14.43. Jakarta
is not a product. At the same time we may want to drop the Jakarta name altogether.
> We should change this to something more standard like: 
> "Apache-HttpClient/3.1-rc1 ("+ System.getProperty("os.name") +";"+ System.getProperty("os.arch")
+") "+
> "Java/"+ System.getProperty("java.vm.version") +" ("+ System.getProperty("java.vm.vendor")
+")"
> which renders:
> "Apache-HttpClient/3.1-rc1 (Windows XP 5.1;x86) Java/1.5.0_08 (Sun Microsystems Inc.)"
> Sun's internal Http client uses something like "Java/1.5.0_08".
> I am completely ignoring the fact that real-world user agents use almost arbitrary strings.
> Some fine examples of misbehaviour from my private logs:
> "Jakmpqes dihurxf wfyiupsc" -- apparently somebody has to hide something...
> "Missigua Locator 1.9"
> "Poodle predictor 1.0"
> "shelob v1.0"
> "ISC Systems iRc Search 2.1"
> "ping.blogug.ch aggregator 1.0"
> "http://www.uni-koblenz.de/~flocke/robot-info.txt"  -- ...sigh
> I am very tempted to write a User-Agent string validator that prevents misuse of this
field in HttpClient.

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