[dcplusplus-devel] blacklist

[poy <po...@12...>]

hi,

here is a patch to implement a blacklist function in order to alert the user 
when a hub list has fallen into the wrong hands. when such a hub list is 
selected by the user, the following message appears on top of the tab:

---
Warning: fraudulent hub list detected!

The current hub list ([url of the list]) has been blacklisted by DC++ for 
the following reason:
[reason]

It is strongly recommended that you do not connect to any of the hubs listed 
here and that you remove this hub list from your collection by using the 
"Configure" button below.
---
(see attached screen-shot)

the list can be updated via version.xml with this format:
<Blacklist>
    <Blacklisted Url="..." Reason="..."/>
    <Blacklisted Url="..." Reason="..."/>
</Blacklist>
(i haven't tested that particular update function.)

there has been concerns about the danger of allowing outside parties to 
remove hub lists in all DC++ out there; instead, this solution only displays 
an explicative message to the user, but doesn't act on her behalf. i hope 
this is an acceptable compromise.

as for performance, there shouldn't be much difference because the text-box 
control used to host the blacklist message is only created when needed, and 
destroyed afterwards.

the default blacklist contains only 1 list at the moment:
<http://adchublist.com/hublist.xml.bz2>
with the reason: "Domain used for spam purposes."

note that there is room for way longer explicative reasons if needed.

poy