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#!/bin/sh
# Bridge the pt.gov.autenticacao flatpak's PKCS#11 module into the NSS
# database of every Mozilla-family flatpak we use, so cartão de cidadão
# authentication / S/MIME signing works despite cross-sandbox isolation.
#
# Idempotent. Re-runs whenever this script or the pt.gov.autenticacao entry
# in meta/flatpak.txt changes.
#
# pteid entry hash: {{ output "sh" "-c" (printf "grep '^pt\\.gov\\.autenticacao' %q/meta/flatpak.txt 2>/dev/null || true" .chezmoi.sourceDir) | sha256sum }}
set -eu
PTEID_APP=pt.gov.autenticacao
MODULE_NAME=pteid-mw
flatpak info --user "$PTEID_APP" >/dev/null 2>&1 || exit 0
PTEID_LOC=$(flatpak info --user --show-location "$PTEID_APP" 2>/dev/null)
[ -d "$PTEID_LOC/files" ] || exit 0
SO=$(find "$PTEID_LOC/files" -name 'libpteidpkcs11.so' -type f 2>/dev/null | head -1)
[ -n "$SO" ] && [ -f "$SO" ] || exit 0
SO_DIR=$(dirname "$SO")
# flatpak --filesystem mounts host paths under /run/host inside the sandbox.
SO_IN_SANDBOX="/run/host$SO"
SO_DIR_IN_SANDBOX="/run/host$SO_DIR"
if ! command -v modutil >/dev/null 2>&1; then
echo "pteid-pkcs11: modutil not found (install nss); skipping NSS registration." >&2
exit 0
fi
# Each line: <flatpak_app_id> <profile_subdir> <process_name>
# - profile_subdir is the directory under ~/.var/app/<id>/ that holds the
# per-profile NSS DBs (cert9.db lives in each <profile>/ underneath it)
# - process_name is the binary name to grep for to detect a running instance
APPS="\
io.gitlab.librewolf-community .librewolf librewolf
org.mozilla.Thunderbird .thunderbird thunderbird"
echo "$APPS" | while IFS=' ' read -r app profile_subdir proc_name; do
[ -n "$app" ] || continue
flatpak info --user "$app" >/dev/null 2>&1 || continue
flatpak override --user \
--filesystem="$PTEID_LOC/files:ro" \
--socket=pcsc \
--env="LD_LIBRARY_PATH=$SO_DIR_IN_SANDBOX" \
"$app"
profiles_dir="$HOME/.var/app/$app/$profile_subdir"
[ -d "$profiles_dir" ] || continue
registered=0
for prof in "$profiles_dir"/*/; do
[ -f "$prof/cert9.db" ] || continue
if modutil -list -dbdir "sql:$prof" 2>/dev/null | grep -q "^[[:space:]]*Name:[[:space:]]*$MODULE_NAME$"; then
continue
fi
if pgrep -u "$(id -u)" -x "$proc_name" >/dev/null 2>&1; then
echo "pteid-pkcs11: $proc_name is running; close it and re-run 'chezmoi apply' to register the PKCS#11 module." >&2
continue
fi
modutil -add "$MODULE_NAME" -libfile "$SO_IN_SANDBOX" -dbdir "sql:$prof" -force >/dev/null
registered=$((registered + 1))
done
if [ "$registered" -gt 0 ]; then
echo "pteid-pkcs11: registered $MODULE_NAME in $registered $proc_name profile(s)."
fi
done
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