Investigate/add support for checksum verification when checksum available about goftp

[joeblew99]

Is there a way for me to check if the file of the FTPserver is different from the ones i have locally ?
i am always downloading file. Never uploading.

thanks in advance.

[muirmanders]

The best you can do is Stat() the file and check if the remote file size matches your local file. Of course, the files could be different but just happen to be the same size.

[rvicentiu]

old issue, I know...

some servers(and a few public ones too) support some kind of checksumming

for example - proftpd has mod_digest which adds

• XCRC (requests CRC32 digest/checksum)
• MD5/XMD5 (requests MD5 digest/checksum)
• XSHA/XSHA1 (requests SHA1 digest/checksum)
• XSHA256 (requests SHA256 digest/checksum)
• XSHA512 (requests SHA512 digest/checksum)

you will have to implement this yourself though

[muirmanders]

Thanks I didn't know about that. I'm updating this issue to track support for the checksumming in goftp.