Bug 1254882 - develop a nightly script to revoke access to legal bugs from ex-employees

1 files changed, 166 insertions, 0 deletions

diff --git a/scripts/nightly_group_bug_cleaner.pl b/scripts/nightly_group_bug_cleaner.pl
new file mode 100755
index 000000000..d8ce4cb54
--- /dev/null
+++ b/scripts/nightly_group_bug_cleaner.pl
@@ -0,0 +1,166 @@
+#!/usr/bin/perl -w
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# This Source Code Form is "Incompatible With Secondary Licenses", as
+# defined by the Mozilla Public License, v. 2.0.
+use 5.10.1;
+use strict;
+use warnings;
+use Bugzilla;
+use Bugzilla::Constants;
+use Bugzilla::Field;
+use Bugzilla::Group;
+use Bugzilla::Util qw(diff_arrays);
+use List::MoreUtils qw(any uniq);
+BEGIN { Bugzilla->extensions }
+
+{
+    my $dbh = Bugzilla->dbh;
+    my %IGNORE = map { $_ => 1 } qw(everyone);
+    my @WATCH  = qw(mozilla-employee-confidential);
+    my @REMOVE = qw(legal);
+    my $JOB_NAME = "nightly-legal-bugs";
+
+    my ($last_run) = $dbh->selectrow_array('select last_run from job_last_run where name = ?', undef, $JOB_NAME);
+    my $and_at_time = $last_run ? ' AND at_time > ?' : '';
+    my $and_profiles_when  = $last_run ? ' AND profiles_when > ?' : '';
+    my @history_sql_params;
+    if ($last_run) {
+        @history_sql_params = ($last_run, get_field_id('bug_group'), $last_run);
+    }
+    else {
+        @history_sql_params = (get_field_id('bug_group'));
+    }
+
+    my $history_sql = qq{
+        SELECT
+            'rename' AS type, object_id AS user_id, at_time AS time, removed as oldvalue, added as newvalue
+        FROM
+            audit_log
+        WHERE
+            class = 'Bugzilla::User' AND field = 'login_name' $and_at_time
+        UNION ALL SELECT
+            'editgroup', userid, profiles_when, oldvalue, newvalue
+        FROM
+            profiles_activity
+        WHERE
+            fieldid = ? $and_profiles_when
+        ORDER BY time
+    };
+
+    my $group_group_sql =  q{
+        SELECT
+            member.name AS member, grantor.name AS name
+        FROM
+            group_group_map
+                JOIN
+            groups AS member ON member_id = member.id
+                JOIN
+            groups AS grantor ON grantor_id = grantor.id
+        WHERE
+            grant_type = 0
+    };
+
+    $dbh->bz_start_transaction();
+    my ($timestamp) = $dbh->selectrow_array('SELECT LOCALTIMESTAMP(0)');
+    # representing what we currently know about the users.
+    my $group_sql         = 'SELECT userregexp, name FROM groups';
+    my @user_regexp_rules = grep { $_->[0] } @{$dbh->selectall_arrayref($group_sql)};
+
+    my %group_map;
+    foreach my $pair (@{$dbh->selectall_arrayref($group_group_sql)}) {
+        $group_map{$pair->[0]}{$pair->[1]} = 1;
+    }
+
+    my $history_items = $dbh->selectall_arrayref($history_sql, { Slice => {} }, @history_sql_params);
+    my %is_removed_from;
+    my %added_by_rename;
+    foreach my $history_item (@$history_items) {
+        my ($user_id, @removes, @adds);
+        $user_id = $history_item->{user_id};
+
+        if ($history_item->{type} eq 'rename') {
+            my @oldvalue = grep { !$IGNORE{$_} } all_groups_for_login(\%group_map, \@user_regexp_rules, $history_item->{oldvalue});
+            my @newvalue = grep { !$IGNORE{$_} } all_groups_for_login(\%group_map, \@user_regexp_rules, $history_item->{newvalue});
+            my ($removed, $added) = diff_arrays(\@oldvalue, \@newvalue);
+            @removes = @$removed;
+            @adds = @$added;
+            $added_by_rename{$user_id}{$_} = 1 for @adds;
+            delete $added_by_rename{$user_id}{$_} for @removes;
+        }
+        else {
+            @adds    = grep { !$IGNORE{$_} } all_groups_for_groups(\%group_map, [split(/\s*,\s/, $history_item->{newvalue})]);
+            @removes = grep { !$IGNORE{$_} && !$added_by_rename{$user_id}{$_} } all_groups_for_groups(\%group_map, [split(/\s*,\s/, $history_item->{oldvalue})]);
+        }
+        $is_removed_from{$user_id}{$_} = 1 for @removes;
+        delete $is_removed_from{$user_id}{$_} for @adds;
+    }
+
+    foreach my $user_id (keys %is_removed_from) {
+        delete $is_removed_from{$user_id} if !any { $is_removed_from{$user_id}{$_} } @WATCH;
+    }
+
+    # the following user ids have left the group(s) we watch.
+    my @user_ids = keys %is_removed_from;
+
+    # Load nobody user and set as current
+    my $auto_user = Bugzilla::User->check({ name => 'automation@bmo.tld' });
+    my $nobody    = Bugzilla::User->check({ name => 'nobody@mozilla.org' });
+    Bugzilla->set_user($auto_user);
+
+    my $sth_remove_mapping = $dbh->prepare('DELETE FROM user_group_map WHERE user_id = ? AND group_id = ? AND grant_type = ?');
+    my @remove_groups     = map { Bugzilla::Group->check({name => $_}) } @REMOVE;
+    my @remove_groups_all = map { Bugzilla::Group->check({name => $_}) } all_groups_for_groups(\%group_map, \@REMOVE);
+
+    foreach my $user_id (@user_ids) {
+        my $user = Bugzilla::User->check({id => $user_id});
+        my @groups_removed_from;
+        say 'Working on ', $user->identity;
+
+        foreach my $remove_group (@remove_groups) {
+            if ($user->in_group($remove_group)) {
+                push @groups_removed_from, $remove_group->name;
+                $sth_remove_mapping->execute($user_id, $remove_group->id, GRANT_DIRECT);
+            }
+        }
+
+        if (@groups_removed_from) {
+            $dbh->do('INSERT INTO profiles_activity'
+                     . ' (userid, who, profiles_when, fieldid, oldvalue, newvalue)'
+                     . ' VALUES (?, ?, now(), ?, ?, ?)',
+                     undef,
+                     $user_id, $auto_user->id,
+                     get_field_id('bug_group'),
+                     join(', ', @groups_removed_from), '');
+            Bugzilla->memcached->clear_config({ key => "user_groups.$user_id" });
+        }
+        $user->force_bug_dissociation($nobody, \@remove_groups_all, $timestamp);
+    }
+
+    my $insert_or_update = q{ INSERT INTO job_last_run (name, last_run) VALUES (?, ?)
+                              ON DUPLICATE KEY UPDATE last_run = ? };
+    $dbh->do($insert_or_update, undef, $JOB_NAME, $timestamp, $timestamp);
+    $dbh->bz_commit_transaction();
+}
+
+sub all_groups_for_login {
+    my ($map, $rules, $login) = @_;
+    return uniq sort map { groups($map, $_) } user_regexp_groups($rules, $login);
+}
+
+sub user_regexp_groups {
+    my ($rules, $login) = @_;
+    return map { $_->[1] } grep { $login =~ $_->[0] } @$rules;
+}
+
+sub all_groups_for_groups {
+    my ($map, $groups) = @_;
+    return uniq sort map { groups($map, $_) } @$groups;
+}
+
+sub groups {
+    my ($map, $group) = @_;
+    return $group, map { $_, groups($map, $_) } keys %{$map->{$group}};
+}