Re: Windows Zenmap Save Topology To PNG Error

[David Fifield <david () bamsoftware com>]

On Sat, Feb 12, 2011 at 09:05:21PM -0500, Alex Kah wrote:
>  
>
> Hello.

> Nmap Version: 5.51
> OS: Windows 7 Ultimate 64-bit, Windows 7 Ultimate 32-bit
>
> I ran into an issue earlier attempting to save a scan's topology to PNG via
> Zenmap. I attempted to accomplish this on two different computers one of
> which was running Windows 7 Ultimate 64-bit and the other running Windows 7
> Ultimate 32-bit. There error is detailed below. 
>
> ##############
> ##############
>
> Error Saving Snapshot: Surface.write_to_png takes one argument which must be
> a filename (str), file object, or a file-like object which has a "write"
> method (like StringIO)
>
> ##############
> ##############
>
> The above is a pop up error in Windows and the below is from the
> zenmap.exe.log file. 
>
> #############################
> #############################
>
> C:\Program Files (x86)\Nmap\py2exe\library.zip\zenmapGUI\MainWindow.py:482:
> GtkWarning: Could not find the icon '"%1"'. The 'hicolor' theme
>
> was not found either, perhaps you need to install it.
> You can get a copy from:
>
>                 http://icon-theme.freedesktop.org/releases
>
> #############################
> #############################
>
> I attempted to roll back to Nmap 5.50 without any luck and then tried Nmap
> 5.36-TEST4 both of which failed. When using Nmap 5.21 I am able to save
> topology maps to PNG without issue. 

Thanks for this report. I can reproduce it on Windows, but not on
GNU/Linux. It seems to be due to the save file name dialog returning a
unicode object instead of a str. It's a fixed bug in pycairo, which
unfortunately is not fixed in their latest release 1.8.10.
https://bugs.freedesktop.org/show_bug.cgi?id=29582

I just committed a workaround (r22250) to encode the unicode object into
a str using the filesystem encoding, which is used in other parts of
Zenmap.

David Fifield
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