Can't download plugins - HTTP 302 redirect

Corey Wei

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Sep 18, 2016, 1:22:53 AM9/18/16

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Hi,

My Jenkins 2.22 is working with Tomcat. There are some errors while I tried to install plugins like this:

18-Sep-2016 11:17:05.590 SEVERE [Update center installer thread [#1]] hudson.model.UpdateCenter$DownloadJob.run Failed to install GIT server Plugin

java.io.IOException: Downloaded file /home/deploy/.jenkins2/plugins/git-server.jpi.tmp does not match expected SHA-1, expected 'LoG8X55ycVzgPjwTtCA/iKb7lvw=', actual 'Lbk3pB/mu/UlYJO4o2ttQkZ+mvs='

at hudson.model.UpdateCenter.verifyChecksums(UpdateCenter.java:1799)

at hudson.model.UpdateCenter.access$1100(UpdateCenter.java:147)

at hudson.model.UpdateCenter$InstallationJob.replace(UpdateCenter.java:1950)

at hudson.model.UpdateCenter$UpdateCenterConfiguration.install(UpdateCenter.java:1194)

at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1669)

at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1864)

at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1640)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:110)

at java.lang.Thread.run(Thread.java:745)

$ cat ~/.jenkins2/plugins/git-server.jpi.tmp

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<title>302 Found</title>

</head><body>

<h1>Found</h1>

<p>The document has moved <a href="https://mirrors.tuna.tsinghua.edu.cn/jenkins/plugins/git-server/1.7/git-server.hpi">here</a>.</p>

</body></html>

Looks like it redirects to a mirror update center.

Any comments would be appreciated.

Thanks

R. Tyler Croy

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Sep 18, 2016, 2:59:06 AM9/18/16

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(replies inline)

On Sat, 17 Sep 2016, Corey Wei wrote:

> Hi,
>
> My Jenkins 2.22 is working with Tomcat. There are some errors while I tried
> to install plugins like this:
>
> 18-Sep-2016 11:17:05.590 SEVERE [Update center installer thread [#1]]
> hudson.model.UpdateCenter$DownloadJob.run Failed to install GIT server
> Plugin
> java.io.IOException: Downloaded file
> /home/deploy/.jenkins2/plugins/git-server.jpi.tmp does not match expected
> SHA-1, expected 'LoG8X55ycVzgPjwTtCA/iKb7lvw=', actual
> 'Lbk3pB/mu/UlYJO4o2ttQkZ+mvs='

I recently added a mirror located in China
(https://issues.jenkins-ci.org/browse/INFRA-924).

Would you mind downloading some files and comparing between the mirror you're
hitting and: http://ftp-nyc.osuosl.org/pub/jenkins/

If that mirror is serving corrupted artifacts I will remove it from the
rotation immediately.

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- R. Tyler Croy

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Corey Wei

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Sep 18, 2016, 4:43:12 AM9/18/16

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Hi Croy,

I just downloaded a hpi from the mirror and the file's good.

The problem is that Jenkins server doesn't follow 302 redirects to download the correct file but always downloads a "302 redirect" response file.

# a 302 redirect file

$ cat git-server.jpi.tmp

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<title>302 Found</title>

</head><body>

<h1>Found</h1>

<p>The document has moved <a href="https://mirrors.tuna.tsinghua.edu.cn/jenkins/plugins/git-server/1.7/git-server.hpi">here</a>.</p>

</body></html>

# file can be downloaded correctly via wget

$ wget -v http://updates.jenkins-ci.org/download/plugins/git-server/1.7/git-server.hpi

--2016-09-18 15:49:54-- http://updates.jenkins-ci.org/download/plugins/git-server/1.7/git-server.hpi

Resolving updates.jenkins-ci.org... 52.202.51.185

Connecting to updates.jenkins-ci.org|52.202.51.185|:80... connected.

HTTP request sent, awaiting response... 302 Found

Location: http://mirrors.jenkins-ci.org/plugins/git-server/1.7/git-server.hpi [following]

--2016-09-18 15:49:55-- http://mirrors.jenkins-ci.org/plugins/git-server/1.7/git-server.hpi

Resolving mirrors.jenkins-ci.org... 52.202.51.185

Reusing existing connection to updates.jenkins-ci.org:80.

HTTP request sent, awaiting response... 302 Found

Location: https://mirrors.tuna.tsinghua.edu.cn/jenkins/plugins/git-server/1.7/git-server.hpi [following]

--2016-09-18 15:49:58-- https://mirrors.tuna.tsinghua.edu.cn/jenkins/plugins/git-server/1.7/git-server.hpi

Resolving mirrors.tuna.tsinghua.edu.cn... 166.111.206.63, 2402:f000:1:416:166:111:206:63

Connecting to mirrors.tuna.tsinghua.edu.cn|166.111.206.63|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 40729 (40K) [application/octet-stream]

Saving to: “git-server.hpi.1”

100%[===========================================================================================>] 40,729 --.-K/s in 0s

2016-09-18 15:49:58 (188 MB/s) - “git-server.hpi.1” saved [40729/40729]

Corey Wei

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Sep 19, 2016, 12:10:57 AM9/19/16

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anyone can help?

Baptiste Mathus

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Sep 19, 2016, 2:56:58 PM9/19/16

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I think it's https://issues.jenkins-ci.org/browse/JENKINS-8028 but surprised it's still active. Pretty sure I saw fixes about this. Maybe it was on some other parts like Tools.

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Daniel Beck

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Sep 21, 2016, 10:02:08 PM9/21/16

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Turns out this was https://issues.jenkins-ci.org/browse/JENKINS-38340 and we removed the mirror from the list, as its admins don't want to serve files via HTTP.

> To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/45c174ea-1307-46f0-bf15-05af87cddf08%40googlegroups.com.
>
> For more options, visit https://groups.google.com/d/optout.
>
>

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Corey Wei

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Sep 22, 2016, 4:30:04 AM9/22/16

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Thanks Daniel & Baptiste. It's working fine.

Does it have any plan to support http to https redirect?

Daniel Beck

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Sep 22, 2016, 10:51:19 AM9/22/16

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> On 22.09.2016, at 10:30, Corey Wei <core...@gmail.com> wrote:
>
> Does it have any plan to support http to https redirect?

Probably not any time soon, as it needs support in Jenkins and older versions will just fail to download anything.

However, since we now have Azure sponsoring us, we may just upgrade everything to HTTPS. Not sure what Tyler's plans currently are.

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