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Posted to dev@mina.apache.org by "Susmit Sarkar (Jira)" <ji...@apache.org> on 2020/10/22 19:10:00 UTC
[jira] [Issue Comment Deleted] (SSHD-1094) Help on User Exits
before any SFTP commands operation
[ https://issues.apache.org/jira/browse/SSHD-1094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Susmit Sarkar updated SSHD-1094:
--------------------------------
Comment: was deleted
(was: Thanks Lyor, we have the solution)
> Help on User Exits before any SFTP commands operation
> -----------------------------------------------------
>
> Key: SSHD-1094
> URL: https://issues.apache.org/jira/browse/SSHD-1094
> Project: MINA SSHD
> Issue Type: Question
> Reporter: Susmit Sarkar
> Priority: Critical
>
> Hello Team,
> The query is about SFTP commands exits. Before the SFTP commands get executed we want to hook custom java code during certain pre-defined operations.
> For example:
> *_IFtpServerUserExit_OnPutFileBeforeExecute_*
> Allows you to execute custom java code when FTP server has received command to put a file. This allows you to read the filename and you can use this to perform validation and many more. In case your code returns 'false', server will send a negative reply to client indicating file transfer failure. Also you can specify error message to be displayed at client end with 451 response code.
> *_IFtpServerUserExit_OnPutFileAfterExecute_*
> Allows you to execute your code when FTP server has received file but haven't committed into underlying storage (filesystem). This allows you to read the file data from an input stream. You can use this to perform things like dumping file to some temporary location, decline the transfer based on size, performing content validation and many more. In case your code returns 'false', server will send a negative reply to client indicating file transfer failure. Also you can specify error message to be displayed at client end with 451 response code.
> I am sharing the git link for your easy reference for my proof of concept, shall be grateful if you guys help me know the ideal approach to cater the use case
> [https://github.com/Susmit07/sftp-poc/tree/main/sftpserver/src/main/java/com]
> SFTPFileSystemAccessor or SFTPEventListener which will be best suited, I am using both but I am confused which will be ideal to use for the above use-case
>
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