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Re: Posting to newsgroup via web forum query. [message #162799 is a reply to message #162737]

Sun, 18 July 2010 16:15

ultra

Messages: 2
Registered: July 2010

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Junior Member

naudefj wrote on Sat, 10 July 2010 12:25

Messages are posted without a MID yes, but as soon as it is reimported to FUDforum, the MID will be stored. So, everything should work out well if you run the import script frequently enough.

Yeah. I only noticed or have a problem with this with a moderated newsgroup that could probably only have to be updated every 24 hours. Obviously this would leave a lot of time for people to reply via the forum to a message without a MID.

naudefj wrote on Sat, 10 July 2010 12:25

I agree, it should be easy to generate a MID. However, I don't know if clients are allowed to do it? Will it be honoured? If so, we can add it to the next release.

Yes, I've never known any server not accept client generated MIDs, and the worst that would happen is it would be overwritten by the server, since to reject it would break some Newsreaders.

I did do this already, basing it on how the MID is done for mailing list posts, so it was generated and placed into the database correctly. So the forum messages always have a MID which remains the same after synchronisation.

Unfortunately depending on what I did, I couldn't get the forum post to be updated with/replaced by the Usenet post. It would either duplicate the post, or all posts would stop being imported, which is the problem I'm having with it.

One additional thing I did was change the check from the X-FUDForum header to the MID header. I think that there's a potential for abuse with the X-FUDForum header. It's trivial for someone to forge that header which could cause problems if the forum would update a message with a 'proper' (but forged) X-FUDForum header sent on Usenet.

The MID however is impossible to forge because it has to be unique; no two messages are allowed to have the same MID at the same time on the Usenet server. I'd recommend you change the check from X-FUDForum to a (generated in FUDForum) MID. Something like [uniqueID]@FUDForum would be possible, if you still wanted FUDForum mentioned in the headers.

This would preserve correct threading if a post is replied to before it's updated from Usenet (what I'm trying to do) and be more secure, allowing less potential for abuse of the forum via Usenet posters/spammers.

Apologies for the delay in replying, and for the previous double post.

[Updated on: Sun, 18 July 2010 16:18]

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[Message index]

		Posting to newsgroup via web forum query. By: newbie.john on Thu, 04 February 2010 04:20
		Re: Posting to newsgroup via web forum query. By: naudefj on Thu, 04 February 2010 18:05
		Re: Posting to newsgroup via web forum query. By: newbie.john on Thu, 04 February 2010 21:32
		Re: Posting to newsgroup via web forum query. By: newbie.john on Fri, 05 February 2010 23:27
		Re: Posting to newsgroup via web forum query. By: naudefj on Sat, 06 February 2010 23:54
		Re: Posting to newsgroup via web forum query. By: newbie.john on Sun, 07 February 2010 00:20
		Re: Posting to newsgroup via web forum query. By: lefthanded.rightminded on Wed, 28 April 2010 10:32
		Re: Posting to newsgroup via web forum query. By: naudefj on Wed, 28 April 2010 18:51
		Re: Posting to newsgroup via web forum query. By: ultra on Sat, 10 July 2010 08:25
		Re: Posting to newsgroup via web forum query. By: naudefj on Sat, 10 July 2010 11:25
		Re: Posting to newsgroup via web forum query. By: ultra on Sun, 18 July 2010 16:15

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