shokrof / Fissh

Fissh

Fissh is tool for fixing corrupted files copied over ssh.

Input:

1. File path on the client.
2. File path on the server. format: user@server:/path/to/file

Steps:

1. createMd5sumsList for file on the clinet
2. ask server to createMd5sumsList for his file.
3. compareAndFix

Functions

createMd5sumsList

1. split the file into chunk(10M). chunks will be saved on /tmp/Fissh.chunks.randomtext
2. calculate md5sum for each chunk
3. output list in the format: md5sum \t chunkpath

FixFile

Input

1. Input File to be fixed: filename
2. CorrectChunk: filename
3. ChunkIndex: Number

Description

Fix files assumes the input file to be list of equal size chunks. the chunk size equals to CorrectChunk size. Fix files overwrite chunk at ChunkIndex with the CorrectChunk.

clean

1. clean temporary files

CompareAndFix

Input

1. Input File to be fixed: filename
2. Server md5sumList
3. Client md5sumList

Steps

1. compare md5sums in both lists
2. scp chunks for corrupted chunks
3. fix corrupted chunks