David Heinemeier HanssonandClaude Fable 5
f01acc1de9
libfprint-git only existed to carry the focaltech_moc driver and the FocalTech FT9349 (2808:a97a) ID ahead of a release. libfprint 1.94.100 has both and is in the Arch repos, so fingerprint setup installs stock libfprint again and a migration swaps existing installs back. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
109 lines
3.8 KiB
Bash
Executable File
109 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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# omarchy:summary=Set up fingerprint authentication for sudo, polkit, and lock screen
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# omarchy:requires-sudo=true
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set -e
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setup_pam_config() {
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# A clamshell gate runs before pam_fprintd in every stack: when the lid is
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# shut the reader is unreachable, so it skips fingerprint (success=1) and PAM
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# drops straight to the password prompt instead of blocking on the reader
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# until it times out. Lid open → fingerprint, then password as the fallback.
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#
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# pam_exec needs a literal absolute path (no env expansion). Point at the
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# fixed /usr/bin path the omarchy package always provides, so the gate keeps
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# working across package installs and dev-link — the latter overlays
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# $OMARCHY_PATH trees but leaves /usr/bin untouched.
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local fprintd_gate="auth [success=1 default=ignore] pam_exec.so quiet /usr/bin/omarchy-hw-laptop-closed"
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# Configure sudo
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if ! grep -q pam_fprintd.so /etc/pam.d/sudo; then
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echo "Configuring sudo for fingerprint authentication..."
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sudo sed -i '1i auth sufficient pam_fprintd.so' /etc/pam.d/sudo
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fi
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if ! grep -q 'omarchy-hw-laptop-closed' /etc/pam.d/sudo; then
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echo "Adding clamshell gate to sudo..."
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# Insert immediately before pam_fprintd so success=1 skips exactly it.
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sudo sed -i "/pam_fprintd\.so/i $fprintd_gate" /etc/pam.d/sudo
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fi
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# Configure polkit
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if [[ -f /etc/pam.d/polkit-1 ]]; then
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if ! grep -q 'pam_fprintd.so' /etc/pam.d/polkit-1; then
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echo "Configuring polkit for fingerprint authentication..."
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sudo sed -i '1i auth sufficient pam_fprintd.so' /etc/pam.d/polkit-1
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fi
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if ! grep -q 'omarchy-hw-laptop-closed' /etc/pam.d/polkit-1; then
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echo "Adding clamshell gate to polkit..."
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sudo sed -i "/pam_fprintd\.so/i $fprintd_gate" /etc/pam.d/polkit-1
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fi
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else
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echo "Creating polkit configuration with fingerprint authentication..."
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sudo tee /etc/pam.d/polkit-1 >/dev/null <<EOF
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$fprintd_gate
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auth sufficient pam_fprintd.so
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auth required pam_unix.so
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account required pam_unix.so
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password required pam_unix.so
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session required pam_unix.so
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EOF
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fi
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}
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setup_lock_fingerprint_pam() {
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echo "Configuring lock screen for fingerprint authentication..."
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sudo tee /etc/pam.d/omarchy-lock-fingerprint >/dev/null <<'EOF'
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#%PAM-1.0
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auth required pam_fprintd.so
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account include system-local-login
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EOF
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}
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echo -e "\e[32mSetting up fingerprint scanner for authentication.\n\e[0m"
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# Bail before installing anything if there's no reader to talk to.
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if ! omarchy-hw-fingerprint; then
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echo -e "\e[31mNo fingerprint sensor detected.\e[0m"
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exit 1
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fi
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# Install required packages
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echo "Installing required packages..."
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# libfprint-git provides+conflicts libfprint; pacman -S --noconfirm
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# defaults the conflict prompt to N and aborts. Pre-remove it (deps-only,
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# so an installed fprintd stays put) so stock libfprint installs cleanly.
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if pacman -Q libfprint-git &>/dev/null; then
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sudo pacman -Rdd --noconfirm libfprint-git
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fi
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omarchy-pkg-add libfprint fprintd usbutils
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# Configure PAM
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setup_pam_config
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# Enroll first fingerprint
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echo -e "\e[32m\nLet's setup your right index finger as the first fingerprint.\e[0m"
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echo -e "Keep moving the finger around on sensor until the process completes.\n"
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if sudo fprintd-enroll "$USER"; then
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echo -e "\e[32m\nFingerprint enrolled successfully!\e[0m"
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# Verify
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echo -e "\nNow let's verify that it's working correctly.\n"
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if fprintd-verify; then
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setup_lock_fingerprint_pam
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echo -e "\e[32m\nPerfect! Fingerprint authentication is now configured.\e[0m"
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echo "You can use your fingerprint for sudo, polkit, and lock screen (Super + Ctrl + L)."
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else
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echo -e "\e[31m\nVerification failed. You may want to try enrolling again.\e[0m"
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fi
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else
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echo -e "\e[31m\nEnrollment failed. Please try again.\e[0m"
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exit 1
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fi
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