Tessen: translation
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Title: Rofi's keyboard shortcut for passwordstore on Wayland
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Date: 2023-07-09 15:00
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Author: Fabrice
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Category: Tips
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Tags: pass, rofi, tessen
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Slug: tessen-shortcut
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Header_Cover: ../images/covers/keyboards.jpg
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Summary: How to configure keyboard inputs for rofi menu on wayland for pass
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Lang: en
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---
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I recently switched from [xorg](https://x.org/) to
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[wayland](https://wayland.freedesktop.org/) with [sway](https://swaywm.org/).
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One of the several roadblocks to this change lies in that some tools that
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heavily rely on graphical environment are not fully compatible with wayland,
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such as [barrier](https://github.com/debauchee/barrier), a keyboard, mouse and
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clipboard sharing system between multiple computers.
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However, the most annoying hindrance was that alternative tools that have been
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built with wayland in mind actually alter my habits too much for my comfort. One
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of such tools I used is [rofi-pass](https://github.com/carnager/rofi-pass), a
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wrapper around [pass]({filename}../software/pass.md) using
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[rofi](https://github.com/davatorium/rofi) as a user interface.
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While using it to type passwords outside software that can integrate
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[`pass`](https://passwordstore.org), I developed some habits with the default
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keyboard shortcuts of `rofi-pass` such as `Alt+c` to copy the password (for a
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short time) or `Alt+Return` to evaluate the `autotype` field in a password file.
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At first, we can notice that `rofi-pass` is not much more than a bash script
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which gather its data from _pass/gopass_, the X11 clipboard manager and
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`xdotools` to automate some actions.
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As such, one solution can be to directly modify the bash script, even if it's
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not [very elegant](https://git.epheme.re/fmouhart/my-pkgs/src/branch/master/rofi-pass/rofi-pass.patch).
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Now, looking more closely into the wayland tooling ecosystem, I found [tessen]
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[tessen](https://github.com/ayushnix/tessen), that supports multiple dmenu-like interfaces, including `rofi` but also
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a wayland-native menu system called [fuzzel](https://codeberg.org/dnkl/fuzzel).
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_Tessen_ thus gather the output of these programs to enact the corresponding
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request using `wl-copy/wl-paste` for the clipboard and `wtype` for typing.
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I first tried to use _fuzzel_, however, their [fuzzy
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search](https://en.wikipedia.org/wiki/Approximate_string_matching) algorithm was
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too different from the one used by [fzf](https://github.com/junegunn/fzf), which
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is integrated in many of the everyday tools I used (such as completing commands
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in my shell), and some usual shortcuts such as `Ctrl+u` to clear my search don't
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seem to work natively.
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I thus decided to use `rofi` which was doing a tremendous job so far, even if it
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launched through xwayland and is not considered _pure enough_ by some people.
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However the `rofi-pass`-specific shortcuts don't seem to work out of the box.
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Fortunately (?), the `man tessen` whispers in my ears that it is possible:
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> If the dmenu program of your choice supports custom keybindings with exit
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> codes greater than or equal to 10, tessen can execute custom operations on a
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> selected file in the first menu. At the very least, fuzzel(1), bemenu(1), and
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> rofi(1) support this feature.
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In particular, it integrates some way to directly type and copy
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[OTP](https://en.wikipedia.org/wiki/Time-based_one-time_password) codes for two
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factor authentication, which is a feature that I manually patched in my
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`rofi-pass` file to have “`Alt+o`” typing an OTP code.
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We now have everything we need to put it in action.
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First, we have to find a way to tell rofi to send [exit
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code](https://en.wikipedia.org/wiki/Exit_status) 10 on some password
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description, which is nice because some configuration options in _rofi_ just do
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that:
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[`kb-custom-<n>`](https://github.com/davatorium/rofi/blob/next/doc/rofi-keys.5.markdown#kb-custom-1)
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allows associating some keyboard inputs to the “_9+n_” exit code.
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`kb-custom-1` then sends the signal 10 and `kb-custom-9`
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sends 20.
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It seems obvious now, but it was not written clearly in the documentation, and I
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first used `kb-custom-10` hoping it will send signal 10… I don't have to tell
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you that it didn't work as intended.
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Luckily I found a [reddit
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comment](https://www.reddit.com/r/linuxquestions/comments/tw8x5j/comment/i3edajm/)
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that explained it to me.
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Putting everything togethere, it leads to the following configuration file
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`$HOME/.config/rofi/tessen.rasi`:
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```rasi
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configuration {
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/* Tessen */
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kb-custom-1: "Alt+Return"; /* autotype */
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kb-custom-2: "Alt+u"; /* autotype user */
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kb-custom-3: "Alt+p"; /* autotype password */
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kb-custom-5: "Alt+t"; /* copy user */
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kb-custom-6: "Alt+c"; /* copy password */
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kb-custom-8: "Alt+o"; /* autotype otp */
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}
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@import "config" /* import default config */
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```
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I initially tried to add it to rofi general-purpose configuration file,
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`$XDG_CONFIG_HOME/rofi/config.rasi`, but it conflicted with `rofimoji` shortcuts
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which didn't hesitate to explain the situation.
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The final step is to integrate this to tessen, which can be done in the configuration file `$XDG_CONFIG_HOME/tessen/config`:
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```sh
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dmenu_backend="rofi"
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rofi_config_file="$HOME/.config/rofi/tessen.rasi"
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```
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For some unknown reason that I didn't look deep inside, `$XDG_CONFIG_HOME` does
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not work unlike what is hinted in the [tessen example configuration
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file](https://github.com/ayushnix/tessen/blob/master/config#L23) on my computer.
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I'll look into it [someday](https://en.wikipedia.org/wiki/Procrastination) to
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have a clean configuration files setup… maybe.
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