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https://issues.apache.org/jira/browse/HDFS-16503?focusedWorklogId=740619&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-740619
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ASF GitHub Bot logged work on HDFS-16503:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Mar/22 01:43
Start Date: 14/Mar/22 01:43
Worklog Time Spent: 10m
Work Description: tomscut opened a new pull request #4067:
URL: https://github.com/apache/hadoop/pull/4067
JIRA: [HDFS-16503](https://issues.apache.org/jira/browse/HDFS-16503).
When creating a file using WebHDFS, there are two main steps:
1. Obtain the location of the Datanode to be written.
2. Put the file to this location.
Currently `NameNodeRpcServer` verifies that pathName is valid, but
`NamenodeWebHdfsMethods` and `RouterWebHdfsMethods` do not.
So if we use an invalid path, the first step returns success, but the second
step throws an `InvalidPathException`.
IMO, we should also do the validation in WebHdfs, which is consistent with
the `NameNodeRpcServer`.
The same WebHDFS operations are: `CREATE`, `APPEND`, `OPEN`,
`GETFILECHECKSUM`. So we can add `DFSUtil.isValidName` to `redirectURI` for
`NamenodeWebHdfsMethods` and `RouterWebHdfsMethods`.
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Issue Time Tracking
-------------------
Worklog Id: (was: 740619)
Remaining Estimate: 0h
Time Spent: 10m
> Should verify whether the path name is valid in the WebHDFS
> -----------------------------------------------------------
>
> Key: HDFS-16503
> URL: https://issues.apache.org/jira/browse/HDFS-16503
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Attachments: image-2022-03-14-09-35-49-860.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When creating a file using WebHDFS, there are two main steps:
> 1. Obtain the location of the Datanode to be written.
> 2. Put the file to this location.
> Currently *NameNodeRpcServer* verifies that pathName is valid, but
> *NamenodeWebHdfsMethods* and *RouterWebHdfsMethods* do not.
> So if we use an invalid path, the first step returns success, but the second
> step throws an {*}InvalidPathException{*}. IMO, we should also do the
> validation in WebHdfs, which is consistent with the NameNodeRpcServer.
> !image-2022-03-14-09-35-49-860.png|width=548,height=164!
> The same webHDFS operations are: CREATE, APPEND, OPEN, GETFILECHECKSUM. So we
> can add DFSUtil.isValidName to redirectURI for *NamenodeWebHdfsMethods* and
> *RouterWebHdfsMethods.*
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