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https://issues.apache.org/jira/browse/HADOOP-15922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16699450#comment-16699450
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Hudson commented on HADOOP-15922:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15503 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15503/])
HADOOP-15922. Fixed doAsUser decoding for (eyang: rev
a9d96948ede11d4d8a8fb58b31b150af84e118d9)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticationFilter.java
* (edit)
hadoop-common-project/hadoop-kms/src/test/java/org/apache/hadoop/crypto/key/kms/server/TestKMS.java
> DelegationTokenAuthenticationFilter get wrong doAsUser since it does not
> decode URL
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-15922
> URL: https://issues.apache.org/jira/browse/HADOOP-15922
> Project: Hadoop Common
> Issue Type: Bug
> Components: common, kms
> Reporter: He Xiaoqiao
> Assignee: He Xiaoqiao
> Priority: Major
> Fix For: 3.3.0, 3.1.2, 3.2.1
>
> Attachments: HADOOP-15922.001.patch, HADOOP-15922.002.patch,
> HADOOP-15922.003.patch, HADOOP-15922.004.patch
>
>
> DelegationTokenAuthenticationFilter get wrong doAsUser when proxy user from
> client is complete kerberos name (e.g., user/[email protected], actually it
> is acceptable), because DelegationTokenAuthenticationFilter does not decode
> DOAS parameter in URL which is encoded by {{URLEncoder}} at client.
> e.g. KMS as example:
> a. KMSClientProvider creates connection to KMS Server using
> DelegationTokenAuthenticatedURL#openConnection.
> b. If KMSClientProvider is a doAsUser, KMSClientProvider will put {{doas}}
> with url encoded user as one parameter of http request.
> {code:java}
> // proxyuser
> if (doAs != null) {
> extraParams.put(DO_AS, URLEncoder.encode(doAs, "UTF-8"));
> }
> {code}
> c. when KMS server receives the request, it does not decode the proxy user.
> As result, KMS Server will get the wrong proxy user if this proxy user is
> complete Kerberos Name or it includes some special character. Some other
> authentication and authorization exception will throws next to it.
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