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https://issues.apache.org/jira/browse/HTTPCLIENT-1452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Bachmann updated HTTPCLIENT-1452:
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Description:
The following url will lead to a circular redirect and a
CircularRedirectException in the end:
http://it.bing.com/
The reason is that http://it.bing.com will redirect to http://www.bing.com but
the header param "host" is not set to the new host (bing.com), instead the host
param of the original request (it.bing.com) is used. In the end the redirect
request will not call http://www.bing.com but http://it.bing.com instead, which
is the same location like the original url and will end up in a circular
deadlock.
The fix would be to override the host param with the value of the redirect
request after copying all header params from the original request to the
redirect request.
The class to adjust is: org.apache.http.impl.client.DefaultRequestDirector.java
The problem is also addressed here:
http://stackoverflow.com/questions/6698214/avoid-circular-redirect-using-httpclient-4-1-1
was:
The following url will lead to an circular redirect and an
CircularRedirectException in the end:
http://it.bing.com/
The reason is that http://it.bing.com will redirect to http://www.bing.com but
the header param "host" is not set to the new host (bing.com), instead the host
param of the original (it.bing.com) request is used. In the end the redirect
request will not call http://www.bing.com but instead http://it.bing.com which
is the same location like the original url and will end up in a circular dead
lock.
The fix would be after copying all header params from the original request to
the redirect request, to override the host param with the value of the redirect
request
The class to adjust is: org.apache.http.impl.client.DefaultRequestDirector.java
The problem is also adressed here:
http://stackoverflow.com/questions/6698214/avoid-circular-redirect-using-httpclient-4-1-1
> in case of a redirect a wrong host param is set to http header
> --------------------------------------------------------------
>
> Key: HTTPCLIENT-1452
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1452
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Reporter: Lars Bachmann
>
> The following url will lead to a circular redirect and a
> CircularRedirectException in the end:
> http://it.bing.com/
> The reason is that http://it.bing.com will redirect to http://www.bing.com
> but the header param "host" is not set to the new host (bing.com), instead
> the host param of the original request (it.bing.com) is used. In the end the
> redirect request will not call http://www.bing.com but http://it.bing.com
> instead, which is the same location like the original url and will end up in
> a circular deadlock.
> The fix would be to override the host param with the value of the redirect
> request after copying all header params from the original request to the
> redirect request.
> The class to adjust is:
> org.apache.http.impl.client.DefaultRequestDirector.java
> The problem is also addressed here:
> http://stackoverflow.com/questions/6698214/avoid-circular-redirect-using-httpclient-4-1-1
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