[GUACAMOLE-1113] Add support for right modifier keys to SSH/Telnet

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.6.0
• Component/s: Terminal
• Assignee: Unassigned
• Reporter: George Pittarelli
• Created: 26/Jun/20 04:54
• Updated: 31/Oct/23 21:23
• Resolved: 31/Oct/23 21:23

Description

In a terminal connection, such as SSH, the Left Control key works however for sending Ctrl+A. However, the Right Control key seems to be entirely lost and pressing RCtrl+A results in just 'a' being sent.

Testing in a Guacamole SSH connection with `showkeys -a`:

• Pressing `a` key results in: `a 97 0141 0x61`
• Pressing `LCtrl+a` keys results in: `^A 1 0001 0x01`
• Pressing `RCtrl+a` keys results in: `a 97 0141 0x61`
• Same as `a` but should be the same as `LCtrl+a`

The same is true for Alt: the left alt key (Alt, 65513) works but the right alt key (AltGr, 65027) is totally lost.

Issue Links

• relates to: GUACAMOLE-1804 Terminal protocols should support mac-style cmd+v paste shortcut