Connection FTP Report

Since I last checked, SAP only supports FTP connections by default. It does not support SFTP (SSH File Transfer Protocoll). SFTP connections require a custom project including your basis team.

This is what you need to do to connect and interact with a server through FTP. For further information, look on github to find example codings https://github.com/search?q=abap+ftp.

1. Your inputs that you need are:

• FTP Username
• FTP Password
• Flag whether Password is already scrambled
• FTP Server-/Hostname
• TCPIP RFC-Destination for internal program 'sapftp', by default this is 'SAPFTPA'

2. Scramble Password

In case your password is still plain text, you need to scramble it with FM 'HTTP_SCRAMBLE' using the plain text password, its length and the key '26101957'.

3. Connect to the FTP Host

To connect to the FTP host, you need to call FM 'FTP_CONNECT' with user, scrambled password, hostname and RFC Destination for the sapftp program (e.g. SAPFTPA). The returned handle lets you reuse the ftp session until you close it, or until it is closed automatically after e.g. a timeout.

4. Interact with the FTP Host on directory level

To interact (read/write) with the FTP Host, you need to call FM 'FTP_COMMAND' with the handle of your FTP session and the ftp command. (alternatively, you can also send a list of commands at once with FM 'FTP_COMMAND_LIST')

• Change directory: cd yourdirectory
  Go up a directory: cd ..
  Go to root directory: cd "/"
• Get current directory list (folders and files): ls -la (or also just 'dir')
• Renaming a file or directory: rename currentname newname
• Switch character mode for transferring text files: ascii

5. Upload / Download files from FTP host

To download a file from the FTP server, you use FM 'FTP_SERVER_TO_R3' using the session handle, the file name of the current directory which you either know or get from the directory list, and the character mode 'C' to retrieve the data as TEXT (internal text table).

To upload a file to the FTP server, you use FM 'FTP_R3_TO_SERVER' using the session handle, the file name for the current directory. If you want to send it as 'BLOB' (binary data), you will have to for example transform a Text String into a X-String with e.g. 'SCMS_STRING_TO_XSTRING' and then transform the X-String into a Binary Tab with e.g. 'SCMS_XSTRING_TO_BINARY'. The resulting binary_tab and output_length need to be passed to the above mentioned FM 'FTP_R3_TO_SERVER' as well.

6. Disconnect from FTP Host and RFC-Destination

To disconnect completely, you need to call the FM 'FTP_DISCONNECT' with your FTP session handle and also the FM 'RFC_CONNECTION_CLOSE' for the RFC-Destination (e.g. SAPFTPA)

Please implement your solution and come back with more specific issues, in case you still have troubles.