116 lines
4.2 KiB
Perl
116 lines
4.2 KiB
Perl
#!/usr/bin/perl
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# External SQL interface to Bugzilla Saved Searches (originally CustIS Bug 61728)
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# License: Dual-license GPL 3.0+ or MPL 1.1+
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# Author(s): Vitaliy Filippov <vitalif@mail.ru>
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# FIXME: Add UI for managing views
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package Bugzilla::Views;
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use strict;
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use Bugzilla::Util;
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use Bugzilla::User;
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use Bugzilla::Search;
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# MySQL has a limitation on views! :-(
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# Views in MySQL cannot include a subquery in the FROM clause.
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# We bypass it by creating a view for every such subquery.
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sub recurse_create_view
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{
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my ($dbh, $name, $sql, $index) = @_;
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# We need recursive regular expressions, available from Perl 5.10.0
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require 5.010;
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my $myname = $name;
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if (!$index)
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{
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my $i = 0;
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$index = \$i;
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}
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else
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{
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$myname .= '_'.$$index;
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}
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# Match and replace subqueries in the FROM part of the query
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$sql =~ s/(FROM|JOIN) \s* \(\s* SELECT((?:
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[^\(\)\"\'\\]+ |
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\"(?:(?:[^\"\\]+|\\[\"\\])*)\" |
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\'(?:(?:[^\'\\]+|\\[\'\\])*)\' |
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\( (?2) \)
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)+) \)/($$index++), "$1 ".recurse_create_view($dbh, $name, "SELECT$2", $index)/gexiso;
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$dbh->do("DROP VIEW IF EXISTS $myname");
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$dbh->do("CREATE SQL SECURITY DEFINER VIEW $myname AS $sql");
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return $myname;
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}
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# Refresh views, optionally only for $users = [ 'username@domain.org', ... ]
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# FIXME @domain.org should not be stripped from the username in the name of view
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sub refresh_some_views
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{
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my ($users) = @_;
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return if Bugzilla->params->{ext_disable_refresh_views};
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my %u;
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for (@{$users || []})
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{
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s/\@.*$//so;
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$_ = lc $_;
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s/[^a-z0-9]+/_/giso;
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$_ = "_$_" if !/^[a-z]/;
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$u{$_} = 1;
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}
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my $dbh = Bugzilla->dbh;
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return unless (ref $dbh)->can('real_table_list');
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my $r = $dbh->real_table_list('view$%$bugs', 'VIEW');
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# Save current user
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my $old_user = Bugzilla->user;
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for (@$r)
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{
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# Determine user
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my (undef, $user, $query) = split /\$/, $_, -1;
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!%u || $u{$user} or next;
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my $q = $user;
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$q =~ tr/_/%/;
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my ($userid) = $dbh->selectrow_array('SELECT userid FROM profiles WHERE login_name LIKE ? ORDER BY userid LIMIT 1', undef, $q.'@%');
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$userid or next;
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my $userobj = Bugzilla::User->new($userid) or next;
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# Determine saved search
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$q = $query;
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$q =~ tr/_/%/;
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($q) = $dbh->selectrow_array('SELECT name FROM namedqueries WHERE userid=? AND name LIKE ? LIMIT 1', undef, $userid, $q);
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$q or next;
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my $storedquery = Bugzilla::Search::Saved->new({ name => $q, user => $userid }) or next;
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$storedquery = http_decode_query($storedquery->query);
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# get SQL code
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my $search = new Bugzilla::Search(
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params => $storedquery,
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fields => [ 'bug_id', grep { $_ ne 'bug_id' } split(/[ ,]+/, $storedquery->{columnlist} || '') ],
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user => $userobj,
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) or next;
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# Re-create views
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my $drop = "DROP VIEW IF EXISTS view\$$user\$$query\$";
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my $create = "CREATE VIEW view\$$user\$$query\$";
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my $bugid_query = $search->bugid_query;
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my $bugids = "view\$$user\$$query\$bugids";
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if ($dbh->isa('Bugzilla::DB::Mysql'))
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{
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$create = "CREATE SQL SECURITY DEFINER VIEW view\$$user\$$query\$";
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recurse_create_view($dbh, $bugids, $bugid_query);
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}
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else
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{
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$dbh->do($drop.'bugids');
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$dbh->do("CREATE VIEW $bugids AS $bugid_query");
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}
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my $sql = $search->getSQL;
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$sql =~ s/\(\s*\Q$bugid_query\E\s*\)/$bugids/s;
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$dbh->do($drop.'bugs');
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$dbh->do($drop.'longdescs');
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$dbh->do($drop.'bugs_activity');
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$dbh->do($create.'bugs AS '.$sql);
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$dbh->do($create.'longdescs AS SELECT l.bug_id, u.login_name, l.bug_when, l.thetext, l.work_time FROM longdescs l INNER JOIN '.$bugids.' b ON b.bug_id=l.bug_id INNER JOIN profiles u ON u.userid=l.who'.($userobj->is_insider?'':' WHERE l.isprivate=0'));
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$dbh->do($create.'bugs_activity AS SELECT a.bug_id, u.login_name, a.bug_when, f.name field_name, a.removed, a.added FROM bugs_activity a INNER JOIN '.$bugids.' b ON b.bug_id=a.bug_id INNER JOIN profiles u ON u.userid=a.who INNER JOIN fielddefs f ON f.id=a.fieldid');
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}
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}
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1;
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__END__
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