SSH client and bracketed paste mode

[Demi M. Obenour]

On 10/30/20 5:22 PM, Thorsten Glaser wrote:
> Hi,
> 
> lemme correct that for you:
> 
>> Using a terminal with bracketed paste mode (see [0], [1]), I
>> am not able to paste text while being in the "~C" command line
>> mode.
>>
>> The reason for that is, that while being in that special mode,
> the terminal sends the bracketed paste control characters to
> OpenSSH, which does not expect it.
> 
>> I tried to figure out, which of the three involved components
>> might be at fault. The component stack is:
>>
>> * terminal
>> * local shell
>> * ssh
>> * remote shell
> 
> This works as follows:
> 
> • terminal sets up normal operation
> • local shell starts ssh
> • ssh starts remote shell on the terminal
> • remote shell instructs the terminal to switch to bracketed paste mode
> 
> Now when you use an SSH escape, ssh temporarily accesses the
> terminal, but bracketed paste mode is still active, which
> leads to confusion.

It would still be nice if SSH implemented support for it.  Bracketed
paste mode is a useful security feature, when combined with terminals
that refuse to paste control characters.

Sincerely,

Demi
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