Resolve failed on certain proxy environment
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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
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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