[Libreoffice-bugs] [Bug 41282] Password protection for writes is implemented as read-only.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41282

--- Comment #3 from Allan Jacobs <jacobsallanster at gmail.com> 2011-10-03 17:47:10 PDT ---
There is really a problem with the specification of this feature.  There are
three items in play.  A read password, a read-only check box, and a write
password.

Read-protect means that the document can be read with a password. 
Write-protect means the document can be changed with a password.  Read-only
means that the document can only be read.

The user guide says that a document for which the "Open file read-only" check
box is checked can actually be written to if the save is accompanied by a write
password.  (This user interface would have to be considered strange, if it were
actually implemented.)

If it is assumed that the user guide actually were implemented:

Read      Read-only Write
password  Checked   Password    Expected Result           Actual result
--------  --------- --------    ------------------------ ---------------
Null      Unchecked Null        Unprotected               Unprotected
Not null  Unchecked Null        Read-prot                 Read-prot
Null      Checked   Null        Read-only                 Read-only
Not null  Checked   Null        Read-prot & Read-only     Read-prot & Read-only
Null      Unchecked Not null    Reject the user input     Read-only
Not null  Unchecked Not null    Reject the user input     Read-prot & Read-only
Null      Checked   Not null    Write-prot                Read-only
Not null  Checked   Not null    Read-prot & Write-prot    Read-prot & Read-only

This, in my opinion, is what should be implemented.  The documentation should
be changed to match...

Read      Read-only Write
password  Checked   Password    Expected Result
--------  --------- --------    ------------------------
Null      Unchecked Null        Unprotected
Not null  Unchecked Null        Read-prot
Null      Checked   Null        Read-only
Not null  Checked   Null        Read-prot & Read-only
Null      Unchecked Not null    Write-prot
Not null  Unchecked Not null    Read-prot & Write-prot
Null      Checked   Not null    Read-only (write-password ignored)
Not null  Checked   Not null    Read-prot & Read-only (write-password ignored)

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