Archive Manager fails to handle password-protected ZIP files

[Stuart Shelton]

Upon trying to open a password-protect ZIP file in Archive Manager/file-roller, I'm correctly prompted for a password. However, on pressing enter/clicking "OK", I then get an error dialog stating:

An error occurred while extracting files.
> Command Line Output
error: must give decryption password with -P option

... on trying again without quitting file-roller, I'm not prompted for a password - it simply shows the same dialog. If I deliberately enter the *wrong* password, then the "Password required" dialog immediately re-opens - so it's not a mis-typed password issue.

$ lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10

$ apt-cache policy file-roller
file-roller:
  Installed: 3.2.1-0ubuntu1
  Candidate: 3.2.1-0ubuntu1
  Version table:
 *** 3.2.1-0ubuntu1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.2.0-0ubuntu1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages

[Stuart Shelton (srcshelton)]

Other files succeed, though. Two thoughts about the password for the problematic file:

* It started with a hypen;
* It contained a "<" character.

... so is this a case of insufficient quoting/guarding?

[Sebastien Bacher (seb128)]

Thank you for your bug report, it could be a quoting issue yes, does "unzip" on a command line deal with that file correctly? Could you add an example to the bug?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Krzysztof Kosinski (tweenk)]

I encountered this bug on Ubuntu 15.10. It can be solved by installing the package p7zip-full. It occurred when I tried to extract a password-protected file which I created on another computer with Ubuntu 14.04 LTS.

The messages from command-line 'unzip' are:

skipping: (file name) need PK compat. v5.1 (can do v4.6)
skipping: (file name) need PK compat. v5.1 (can do v4.6)
skipping: (file name) need PK compat. v5.1 (can do v4.6)
etc.

The main problem here is that the error message returned by Archive Manager is not helpful at all.

[Tero Gusto (tero-gusto)]

I can confirm that installing p7zip-full fixes this problem.