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  14    <H1>[IRCServices Coding] The case of the non-existant user</H1>
  15     <B>Andrew Church</B>
  16     <A HREF="mailto:ircservices-coding%40ircservices.za.net?Subject=%5BIRCServices%20Coding%5D%20The%20case%20of%20the%20non-existant%20user&In-Reply-To="
  17        TITLE="[IRCServices Coding] The case of the non-existant user">achurch at achurch.org
  18        </A><BR>
  19     <I>Sun Mar  3 12:10:15 PST 2002</I>
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  34 <PRE>     This shouldn't happen; if it does, it's either a Services bug or an
  35 ircd bug.
  36
  37   --Andrew Church
  38     <A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">achurch at achurch.org</A>
  39     <A HREF="http://achurch.org/">http://achurch.org/</A>
  40
  41 &gt;<i>Odd scenario, and I am not sure whether services should/could support it,
  42 </I>&gt;<i>but since it seems to be the cause of a particular chain of log messages,
  43 </I>&gt;<i>it could well be something for the FAQ if it is not something that
  44 </I>&gt;<i>should/could be supported.
  45 </I>&gt;<i>
  46 </I>&gt;<i>A user logs on to IRC, identifies to NickServ then joins a channel that he
  47 </I>&gt;<i>has auto-op rights on. He then immediately changes nickname to another
  48 </I>&gt;<i>nickname (registered or not). Services logs the fact that a mode change was
  49 </I>&gt;<i>requested for a nonexistant user. The nicknames in the example are not
  50 </I>&gt;<i>linked.
  51 </I>&gt;<i>
  52 </I>&gt;&gt;<i>From logs:
  53 </I>&gt;<i>
  54 </I>&gt;<i>[channel]
  55 </I>&gt;<i>[14:38] Damon (<A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">damon at xxxx</A>) joined #channel.
  56 </I>&gt;<i>[14:38] Nick change: Damon -&gt; Memphis
  57 </I>&gt;<i>
  58 </I>&gt;<i>[Services.log]
  59 </I>&gt;<i>[Mar 02 14:38:59 2002] nickserv/main: Damon!<A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">damon at xxxx</A> identified for nick
  60 </I>&gt;<i>Damon
  61 </I>&gt;<i>[Mar 02 14:38:59 2002] channel: MODE #channel +o for nonexistent user Damon
  62 </I>&gt;<i>[Mar 02 14:39:13 2002] nickserv/main: Memphis!<A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">damon at xxxx</A> identified for
  63 </I>&gt;<i>nick Memphis
  64 </I>&gt;<i>
  65 </I>&gt;<i>I have not managed to be quick enough to reproduce this 100% hence my lack
  66 </I>&gt;<i>of knowledge on whether this affects linked nicknames, but in my defence it
  67 </I>&gt;<i>is kinda late here and the timing is somewhat critical :). I suspect that
  68 </I>&gt;<i>it may apply to linked nicknames as well but assuming that services logs an
  69 </I>&gt;<i>error returned by the attempt to set a mode, I imagine the linked nick
  70 </I>&gt;<i>would trigger another test which may make mitigate the problem from a
  71 </I>&gt;<i>user's perspective.
  72 </I>&gt;<i>
  73 </I>&gt;<i>I guess it would quite complex for services to track the user and supress
  74 </I>&gt;<i>the error as well as leading to potential circular lockup, so maybe just
  75 </I>&gt;<i>one for the FAQ.
  76 </I>&gt;<i>
  77 </I>&gt;<i>
  78 </I>&gt;<i>--
  79 </I>&gt;<i>Mark.
  80 </I>&gt;<i>
  81 </I>&gt;<i>
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  86 </PRE>
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