[Pidgin] #7672: long messages in IRC silently dissapear

[Pidgin]

#7672: long messages in IRC silently dissapear
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 Reporter:  kermit  |        Owner:  elb
     Type:  defect  |       Status:  new
Milestone:          |    Component:  IRC
  Version:  2.5.2   |   Resolution:     
 Keywords:          |  
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Description changed by kermit:

Old description:

> I'm sure most everyone in IRC knows this bug exists in most IRC clients,
> but for the people who don't know it can lead to a lot of confusion.
>
> The bug is, if you send a line longer than 512 charactrers.. or is it 511
> characters, and subtract 2 more for the CRLF, I think.   The server drops
> it entirely.
>
> This is not to be confused with how long messages get truncated as
> reported in bug #4753.  However, fixing both issues at once would be
> efficient.
>
> For anyone not understanding what's happening.. If the entire  line
> including command and target is over the limit on the sender side, it is
> dropped, if it's shorter on the sender side but on the reciever side
> would be too long, then it would be truncated.  Note that the reciever
> sees a different line because they see the sender nick!user at host so the
> length is different (usually longer).  See the RFC for more details.

New description:

 I'm sure most everyone in IRC knows this bug exists in most IRC clients,
 but for the people who don't know it can lead to a lot of confusion.

 The bug is, if you send a line longer than 512 charactrers.. or is it 511
 characters, and subtract 2 more for the CRLF, I think.   The server drops
 it entirely.

 This is not to be confused with how long messages get truncated as
 reported in bug #4753.  However, fixing both issues at once would be
 efficient.

 For anyone not understanding what's happening.. If the entire  line
 including command and target is over the limit on the sender side, it is
 dropped, if it's shorter on the sender side but on the reciever side would
 be too long, then it would be truncated.  Note that the reciever sees a
 different line because they see the sender nick!user at host so the length is
 different (usually longer).  See the RFC for more details.

 Note it seems not all IRC servers accept, though still truncate, over 512,
 like freenode.  Undernet drops.

 Some, maybe all, servers will reply with error 417 message too long if
 they've dropped the line.  As there is no default "server window" in
 pidgin, this is unknown to the user.

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Ticket URL: <http://developer.pidgin.im/ticket/7672#comment:2>
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