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https://issues.apache.org/jira/browse/HTTPCLIENT-1498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13980814#comment-13980814
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Oleg Kalnichevski commented on HTTPCLIENT-1498:
-----------------------------------------------
What the server sends back as a redirect location is clearly garbage.
{noformat}
[DEBUG] headers - http-outgoing-0 << Location: http://:80/robots.txt
{noformat}
HttpClient is absolutely correct in rejecting the response. What I can do
though is to make it throw a protocol exception instead of unchecked runtime
exception.
{noformat}
[DEBUG] RequestAddCookies - CookieSpec selected: best-match
[DEBUG] RequestAuthCache - Auth cache not set in the context
[DEBUG] PoolingHttpClientConnectionManager - Connection request: [route:
{}->http://www.thegamersedge.co.uk:80][total kept alive: 0; route allocated: 0
of 2; total allocated: 0 of 20]
[DEBUG] PoolingHttpClientConnectionManager - Connection leased: [id: 0][route:
{}->http://www.thegamersedge.co.uk:80][total kept alive: 0; route allocated: 1
of 2; total allocated: 1 of 20]
[DEBUG] MainClientExec - Opening connection
{}->http://www.thegamersedge.co.uk:80
[DEBUG] HttpClientConnectionManager - Connecting to
www.thegamersedge.co.uk/72.1.201.152:80
[DEBUG] MainClientExec - Executing request GET /robots.txt HTTP/1.1
[DEBUG] MainClientExec - Target auth state: UNCHALLENGED
[DEBUG] MainClientExec - Proxy auth state: UNCHALLENGED
[DEBUG] headers - http-outgoing-0 >> GET /robots.txt HTTP/1.1
[DEBUG] headers - http-outgoing-0 >> Host: www.thegamersedge.co.uk
[DEBUG] headers - http-outgoing-0 >> Connection: Keep-Alive
[DEBUG] headers - http-outgoing-0 >> User-Agent: Apache-HttpClient/4.3.2 (java
1.5)
[DEBUG] headers - http-outgoing-0 >> Accept-Encoding: gzip,deflate
[DEBUG] headers - http-outgoing-0 << HTTP/1.1 302 Object moved
[DEBUG] headers - http-outgoing-0 << Content-Type: text/html
[DEBUG] headers - http-outgoing-0 << Content-Length: 142
[DEBUG] headers - http-outgoing-0 << Cache-Control: private
[DEBUG] headers - http-outgoing-0 << Date: Fri, 25 Apr 2014 08:50:38 GMT
[DEBUG] headers - http-outgoing-0 << Location: http://:80/robots.txt
[DEBUG] headers - http-outgoing-0 << Server: Microsoft-IIS/6.0
[DEBUG] headers - http-outgoing-0 << Set-Cookie:
ASPSESSIONIDASDTAQTC=DOCHGFABJOMBMKKHMKOMJNFE; path=/; HttpOnly
[DEBUG] headers - http-outgoing-0 << X-Powered-By: ASP.NET
[DEBUG] MainClientExec - Connection can be kept alive indefinitely
[DEBUG] ResponseProcessCookies - Cookie accepted
[ASPSESSIONIDASDTAQTC="DOCHGFABJOMBMKKHMKOMJNFE", version:0,
domain:www.thegamersedge.co.uk, path:/, expiry:null]
[DEBUG] DefaultRedirectStrategy - Redirect requested to location
'http://:80/robots.txt'
[DEBUG] DefaultManagedHttpClientConnection - http-outgoing-0: Shutdown
connection
[DEBUG] MainClientExec - Connection discarded
[DEBUG] DefaultManagedHttpClientConnection - http-outgoing-0: Close connection
[DEBUG] PoolingHttpClientConnectionManager - Connection released: [id:
0][route: {}->http://www.thegamersedge.co.uk:80][total kept alive: 0; route
allocated: 0 of 2; total allocated: 0 of 20]
{noformat}
> "java.lang.IllegalArgumentException: Host name may not be blank" thrown
> during redirect (regression?)
> -----------------------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1498
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1498
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 4.3.3
> Reporter: Sebastiano Vigna
>
> The bug we reported some time ago about null hosts in redirects seems to have
> regressed, albeit the old problem was with "null" and the new problem is with
> "blank":
> 2014-04-20 04:20:09,169 19319369 ERROR [FetchingThread-197]
> i.u.d.l.b.f.FetchingThread - Unexpected exception
> java.lang.IllegalArgumentException: Host name may not be blank
> at org.apache.http.util.Args.notBlank(Args.java:68)
> ~[httpcore.jar:4.3.2]
> at org.apache.http.HttpHost.<init>(HttpHost.java:81)
> ~[httpcore.jar:4.3.2]
> at
> org.apache.http.client.utils.URIUtils.extractHost(URIUtils.java:370)
> ~[httpclient.jar:4.3.3]
> at
> org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:132)
> ~[httpclient.jar:4.3.3]
> at
> org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
> ~[httpclient.jar:4.3.3]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)
> ~[httpclient.jar:4.3.3]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:214)
> ~[httpclient.jar:4.3.3]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:185)
> ~[httpclient.jar:4.3.3]
> at it.unimi.di.law.bubing.util.FetchData.fetch(FetchData.java:322)
> ~[bubing-0.9.3.jar:na]
> This is caused by this site:
> > wget --max-redirect=0 http://www.thegamersedge.co.uk/robots.txt
> --2014-04-20 20:47:43-- http://www.thegamersedge.co.uk/robots.txt
> Resolving www.thegamersedge.co.uk (www.thegamersedge.co.uk)... 72.1.201.156,
> 72.1.201.152
> Connecting to www.thegamersedge.co.uk
> (www.thegamersedge.co.uk)|72.1.201.156|:80... connected.
> HTTP request sent, awaiting response... 302 Moved Temporarily
> Location: http://robots.txt [following]
> 0 redirections exceeded.
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