1 files changed, 58 insertions, 0 deletions
diff --git a/debian/libpam-modules.preinst b/debian/libpam-modules.preinst
new file mode 100644
index 0000000..fe0d6eb
--- /dev/null
+++ b/debian/libpam-modules.preinst
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+set -e
+
+. /usr/share/debconf/confmodule
+
+
+handle_profiles_with_removed_modules() {
+    removed_modules="$1"
+    profiles=""
+    modules=""
+    test -x /usr/sbin/pam-auth-update ||return 0
+    test -r /var/lib/pam/auth ||return 0
+    for module in $removed_modules; do
+        new_profiles=$( perl -nle 'BEGIN {$removed = shift;} /^Module: (.*)$/&&($profile = $1); /^[^#]*$removed/&&$profile&&($profiles{$profile} = 1); END {print join("\n",keys %profiles) if %profiles;}' \
+                        $module \
+                        /var/lib/pam/auth /var/lib/pam/account \
+                        /var/lib/pam/password /var/lib/pam/session \
+                        /var/lib/pam/session-noninteractive)
+        if [ "$new_profiles" != "" ]; then
+            modules="$modules $module"
+            profiles="${profiles}${new_profiles}"
+        fi
+    done
+    profiles=$( echo "$profiles" |sort |uniq)
+    if [ "$profiles" != "" ]; then
+        db_reset libpam-modules/profiles-disabled
+        db_subst libpam-modules/profiles-disabled modules "$modules"
+        db_input critical libpam-modules/profiles-disabled ||true
+        db_go ||true
+        pam-auth-update --remove $profiles
+    fi
+}
+
+        
+
+if dpkg --compare-versions "$2" lt-nl 1.4.0-5; then
+    db_version 2.0
+    handle_profiles_with_removed_modules pam_tally
+    # We have a generic template for removing pam-profiles because
+    # there is a sane automatic action.  If we detect the modules in
+    # user configurations we want a specific template so we can
+    # recommend a replacement
+    # /dev/null reference is to make sure we don't grep stdin if
+    # somehow ls returns empty
+    if grep -qe '^[^#]*pam_tally' $(ls -1d /etc/pam.d/* | grep -e '^/etc/pam.d/[0-9a-zA-Z/-]*$' ) /dev/null ; then
+        db_input critical libpam-modules/deprecate-tally ||true
+        db_go ||true
+        exit 2
+    fi
+
+	if pidof xscreensaver xlockmore >/dev/null; then
+		db_input critical libpam-modules/disable-screensaver || true
+		db_go || true
+	fi
+fi
+
+#DEBHELPER#