Unable to open the skype 8 leveldb

[pkt30]

I tried to open the skype 8 level db using the FastoNoSql v1.17.6 but each time I got the following error on the console

11:44:53.133: SCAN function error: Corruption: corrupted compressed block contents

I selected indexed_db as comparator and snappy as compression.

The skype 8 level db file is located at C:\Users\machine-username\AppData\Roaming\Microsoft\Skype for Desktop\IndexedDB\file__0.indexeddb.leveldb

[topilski]

Hi @pkt30, please try without compression

[topilski]

Also please try old versions: Windows: https://fastonosql.com/downloads/windows/fastonosql-1.17.4-x86_64.exe https://fastonosql.com/downloads/windows/fastonosql-1.17.4-x86_64.zip

Linux: https://fastonosql.com/downloads/linux/fastonosql-1.17.4-x86_64.deb https://fastonosql.com/downloads/linux/fastonosql-1.17.4-x86_64.rpm https://fastonosql.com/downloads/linux/fastonosql-1.17.4-x86_64.tar.gz

MacOSX: https://fastonosql.com/downloads/macosx/fastonosql-1.17.4-x86_64.dmg https://fastonosql.com/downloads/macosx/fastonosql-1.17.4-x86_64.zip

[simplyQQ]

I have the same error using latest version with and without compression.

1.17.4 seems to open and load contents, but produces following:

what else are we missing and why does latest version not work?

[topilski]

Hi @simplyQQ , it is hexed or unicode strings (binary data). We updated LevelDB from master but LevelDB sources have bug in current master branch, need to wait fixes, or use old versions,.

[simplyQQ]

I've tried different preview methods but neither seems to decode it. These do seem binary, but when viewing raw LDB file I can clearly see text data in it?

[topilski]

No, not readable for human.

[pkt30]

Earlier I was just able to open the db once, there I also got the similar encoded value. From the UI, there is some menu "get value" from which we could the value which is readable. I do not know if this menu is available in all version.

It's value looks something

� �� o"_serverMessagesAo"isactiveT" threadtopic"GE1" messagetype"RichText"conversationLink"}https://ea2hk2-client-s.gateway.messenger.live.com/v1/users/ME/conversations/19:[email protected]"origincontextid"0" contenttype"text"originalarrivaltime"2018-07-19T10:36:48.075Z"from"Zhttps://ea2hk2-client-s.gateway.messenger.live.com/v1/users/ME/contacts/8:ab.vat"content"test" imdisplayname"abVat"counterpartymessageid" 1531996608501"id" 1531996608501" ackrequired"khttps://ea2hk2-client-s.gateway.messenger.live.com/v1/users/ME/conversations/ALL/messages/1531996608501/ack"version" 1531996608501"type"Message"clientmessageid"2598134417786739980" composetime"2018-07-19T10:36:48.075Z{$

[topilski]

Hi @pkt30 , you can simple enter "get key" command in console. "get value" availible in all versions.

[topilski]

For more inforation: https://github.com/fastogt/fastonosql/wiki/Common-commands

[topilski]

I think symbol: � is snappy compression lenght.

[topilski]

Hello guys, i updated FastoNoSQL version, and fixed LevelDB issue, please check.

[simplyQQ]

I would test it, but my trial has expired :(

[topilski]

@simplyQQ please send an email to [email protected] i will extend your trial

[jmvermeulen]

I can get some values readable by converting them to xHex. But the data still isn't fully correct, seems a kind of reversed.

Edit: If the value is decoded as Sting as BigEndianUnicode the text is quite readable and not reversed any more!

[ffrappo]

Still doesn’t work. @jmvermeulen could you explain your process with more detail?