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https://issues.apache.org/jira/browse/IVY-911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maarten Coene reassigned IVY-911:
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Assignee: Maarten Coene
> Resolve failed on certain proxy environment
> -------------------------------------------
>
> Key: IVY-911
> URL: https://issues.apache.org/jira/browse/IVY-911
> Project: Ivy
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0-RC1, trunk
> Environment: 2.0.0-rc1 (and tested with the latest trunk); checked
> using Eclipse 3.3 under Windows XP; Ant 1.7.0; jdk1.5.0_05
> access to the internet via at least 2 proxies (chained - internal and
> afterwards corporate proxy)
> Reporter: rednix
> Assignee: Maarten Coene
> Attachments: AbstractURLHandler.Patch.for.IVY-911.txt,
> BasicURLHandler.Patch.for.IVY-911.txt, HttpClientHandler.Patch.for.IVY-911.txt
>
>
> In the early incubating phase the URLInfo were retrieved via a full http GET
> request. In the latest codebase this has been changed to a faster HEAD
> request to optimize performance. For most network scenarios this is no
> problem. But in our company we are going through at least 2 proxies to access
> the internet. We have no control over the settings/configurations of all of
> these proxies. Using a full http GET request in the getURLInfo() method the
> retrieve is working in this scenario without any problems; but using only a
> HEAD request the retrieve failed with an exception "Server access Error:
> Unexpected end of file from server ".
> So my suggestion is to add a configuration option to ivy which (if set)
> causes to fall back to the slower but working GET request in the method.
> I hope that I classified the issue correctly - for most users it might not be
> as important as it is for ourselves.
> The entry in ivy-user mailing list concerning this issue:
> http://www.nabble.com/.bundle-extension-in-ivy-retrieve...-im-so-confused-td18562574.html
> So here come my proposed patches for the involved classes (for both cases -
> when using the commons-httpclient or the basic handler).
> I've altered the following classes: AbstractURLHandler, BasicURLHandler,
> HttpClientHandler
> I've not changed the invocation/creation of the handler - it is created in
> URLHandlerRegistry#getHttp() via org.apache.ivy.Main#configureURLHandler(...)
> or org.apache.ivy.ant.IvyAntSettings#configureURLHandler(). Currently the
> getHttp() method takes no parameter - maybe this should be changed passing
> the introduced flag as an int. Or an alternative approach should be used to
> pass the new ivy-config parameter through to the getURLInfo() method. Hope
> you will manage the rest of it the way you handle such cases overall in the
> codebase.
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