3

lib/log.sh

@@ -1,6 +1,19 @@
 #!/usr/bin/env bash
 
 log_init() {
+  local fallback_dir=""
+  local fallback_file=""
+
+  mkdir -p "$RUNTIME_LOG_DIR" 2>/dev/null || true
+  if : > "$RUNTIME_LOG_FILE" 2>/dev/null; then
+    return 0
+  fi
+
+  fallback_dir="${TMPDIR:-/tmp}/postinstall-debian-$(id -u)"
+  fallback_file="$fallback_dir/install.log"
+  mkdir -p "$fallback_dir"
+  RUNTIME_LOG_DIR="$fallback_dir"
+  RUNTIME_LOG_FILE="$fallback_file"
   : > "$RUNTIME_LOG_FILE"
 }
 

lib/package.sh

@@ -4,6 +4,10 @@ package_is_installed() {
   dpkg -s "$1" >/dev/null 2>&1
 }
 
+package_is_available() {
+  apt-cache show "$1" >/dev/null 2>&1
+}
+
 package_refresh_indexes() {
   apt-get update
 }

lib/system.sh

@@ -30,6 +30,47 @@ system_require_root() {
   ui_success "Privileges root valides"
 }
 
+system_can_prompt_password() {
+  [[ -t 0 && -t 1 ]]
+}
+
+system_reexec_as_root() {
+  local entrypoint="${POSTINSTALL_ENTRYPOINT:-}"
+  local quoted_args=""
+  local arg=""
+
+  if [[ "${EUID:-$(id -u)}" -eq 0 ]]; then
+    return 0
+  fi
+
+  if [[ -z "$entrypoint" || ! -f "$entrypoint" ]]; then
+    ui_error "Impossible de relancer automatiquement en root depuis cette execution"
+    return 1
+  fi
+
+  if ! system_can_prompt_password; then
+    ui_error "Privileges root requis et aucun terminal interactif disponible"
+    return 1
+  fi
+
+  for arg in "$@"; do
+    quoted_args="${quoted_args} $(printf '%q' "$arg")"
+  done
+
+  if command -v sudo >/dev/null 2>&1; then
+    ui_info "Privileges root requis, tentative avec sudo"
+    exec sudo --preserve-env=TMPDIR bash "$entrypoint" "$@"
+  fi
+
+  if command -v su >/dev/null 2>&1; then
+    ui_info "Privileges root requis, bascule vers root avec su"
+    exec su -c "bash $(printf '%q' "$entrypoint")$quoted_args"
+  fi
+
+  ui_error "Ni sudo ni su ne sont disponibles pour obtenir les privileges root"
+  return 1
+}
+
 system_user_exists() {
   local user_name="$1"
   id "$user_name" >/dev/null 2>&1
@@ -57,3 +98,27 @@ system_primary_interface() {
       }
     }'
 }
+
+system_origin_user() {
+  if [[ -n "${SUDO_USER:-}" ]]; then
+    printf '%s\n' "$SUDO_USER"
+    return 0
+  fi
+
+  if [[ -n "${PKEXEC_UID:-}" ]]; then
+    getent passwd "$PKEXEC_UID" | cut -d: -f1
+    return 0
+  fi
+
+  printf '%s\n' "$(id -un)"
+}
+
+system_privilege_mode() {
+  if [[ "${EUID:-$(id -u)}" -ne 0 ]]; then
+    printf 'utilisateur\n'
+  elif [[ -n "${SUDO_USER:-}" ]]; then
+    printf 'sudo\n'
+  else
+    printf 'root direct\n'
+  fi
+}