summaryrefslogtreecommitdiffstats
path: root/Bugzilla/Search/Saved.pm
blob: 27a2e38cad15a286154e6604ce65d59074eace38 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
# 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.

package Bugzilla::Search::Saved;

use 5.14.0;
use strict;
use warnings;

use parent qw(Bugzilla::Object);

use Bugzilla::CGI;
use Bugzilla::Constants;
use Bugzilla::Group;
use Bugzilla::Error;
use Bugzilla::Search qw(IsValidQueryType);
use Bugzilla::User;
use Bugzilla::Util;

use Scalar::Util qw(blessed);

#############
# Constants #
#############

use constant DB_TABLE => 'namedqueries';
# Do not track buglists saved by users.
use constant AUDIT_CREATES => 0;
use constant AUDIT_UPDATES => 0;
use constant AUDIT_REMOVES => 0;

use constant DB_COLUMNS => qw(
    id
    userid
    name
    query
);

use constant VALIDATORS => {
    name       => \&_check_name,
    query      => \&_check_query,
    link_in_footer => \&_check_link_in_footer,
};

use constant UPDATE_COLUMNS => qw(name query);

###############
# Constructor #
###############

sub new {
    my $class = shift;
    my $param = shift;
    my $dbh = Bugzilla->dbh;

    my $user;
    if (ref $param) {
        $user = $param->{user} || Bugzilla->user;
        my $name = $param->{name};
        if (!defined $name) {
            ThrowCodeError('bad_arg',
                {argument => 'name',
                 function => "${class}::new"});
        }
        my $condition = 'userid = ? AND name = ?';
        my $user_id = blessed $user ? $user->id : $user;
        detaint_natural($user_id)
          || ThrowCodeError('param_must_be_numeric',
                            {function => $class . '::_init', param => 'user'});
        my @values = ($user_id, $name);
        $param = { condition => $condition, values => \@values };
    }

    unshift @_, $param;
    my $self = $class->SUPER::new(@_);
    if ($self) {
        $self->{user} = $user if blessed $user;

        # Some DBs (read: Oracle) incorrectly mark the query string as UTF-8
        # when it's coming out of the database, even though it has no UTF-8
        # characters in it, which prevents Bugzilla::CGI from later reading
        # it correctly.
        utf8::downgrade($self->{query}) if utf8::is_utf8($self->{query});
    }
    return $self;
}

sub check {
    my $class = shift;
    my $search = $class->SUPER::check(@_);
    my $user = Bugzilla->user;
    return $search if $search->user->id == $user->id;

    if (!$search->shared_with_group
        or !$user->in_group($search->shared_with_group)) 
    {
        ThrowUserError('missing_query', { name => $search->name,
                                          sharer_id => $search->user->id });
    }

    return $search;
}

##############
# Validators #
##############

sub _check_link_in_footer { return $_[1] ? 1 : 0; }

sub _check_name {
    my ($invocant, $name) = @_;
    $name = trim($name);
    $name || ThrowUserError("query_name_missing");
    $name !~ /[<>&]/ || ThrowUserError("illegal_query_name");
    if (length($name) > MAX_LEN_QUERY_NAME) {
        ThrowUserError("query_name_too_long");
    }
    return $name;
}

sub _check_query {
    my ($invocant, $query) = @_;
    $query || ThrowUserError("buglist_parameters_required");
    my $cgi = new Bugzilla::CGI($query);
    $cgi->clean_search_url;
    # Don't store the query name as a parameter.
    $cgi->delete('known_name');
    return $cgi->query_string;
}

#########################
# Database Manipulation #
#########################

sub create {
    my $class = shift;
    Bugzilla->login(LOGIN_REQUIRED);
    my $dbh = Bugzilla->dbh;
    $class->check_required_create_fields(@_);
    $dbh->bz_start_transaction();
    my $params = $class->run_create_validators(@_);

    # Right now you can only create a Saved Search for the current user.
    $params->{userid} = Bugzilla->user->id;

    my $lif = delete $params->{link_in_footer};
    my $obj = $class->insert_create_data($params);
    if ($lif) {
        $dbh->do('INSERT INTO namedqueries_link_in_footer 
                  (user_id, namedquery_id) VALUES (?,?)',
                 undef, $params->{userid}, $obj->id);
    }
    $dbh->bz_commit_transaction();

    return $obj;
}

sub rename_field_value {
    my ($class, $field, $old_value, $new_value) = @_;

    my $old = url_quote($old_value);
    my $new = url_quote($new_value);
    my $old_sql = $old;
    $old_sql =~ s/([_\%])/\\$1/g;

    my $table = $class->DB_TABLE;
    my $id_field = $class->ID_FIELD;

    my $dbh = Bugzilla->dbh;
    $dbh->bz_start_transaction();

    my %queries = @{ $dbh->selectcol_arrayref(
        "SELECT $id_field, query FROM $table WHERE query LIKE ?",
        {Columns=>[1,2]}, "\%$old_sql\%") };
    foreach my $id (keys %queries) {
        my $query = $queries{$id};
        $query =~ s/\b$field=\Q$old\E\b/$field=$new/gi;
        # Fix boolean charts.
        while ($query =~ /\bfield(\d+-\d+-\d+)=\Q$field\E\b/gi) {
            my $chart_id = $1;
            # Note that this won't handle lists or substrings inside of
            # boolean charts. Users will have to fix those themselves.
            $query =~ s/\bvalue\Q$chart_id\E=\Q$old\E\b/value$chart_id=$new/i;
        }
        $dbh->do("UPDATE $table SET query = ? WHERE $id_field = ?",
                 undef, $query, $id);
        Bugzilla->memcached->clear({ table => $table, id => $id });
    }

    $dbh->bz_commit_transaction();
}

sub preload {
    my ($searches) = @_;
    my $dbh = Bugzilla->dbh;

    return unless scalar @$searches;

    my @query_ids = map { $_->id } @$searches;
    my $queries_in_footer = $dbh->selectcol_arrayref(
        'SELECT namedquery_id
           FROM namedqueries_link_in_footer
          WHERE ' . $dbh->sql_in('namedquery_id', \@query_ids) . ' AND user_id = ?',
          undef, Bugzilla->user->id);

    my %links_in_footer = map { $_ => 1 } @$queries_in_footer;
    foreach my $query (@$searches) {
        $query->{link_in_footer} = ($links_in_footer{$query->id}) ? 1 : 0;
    }
}
#####################
# Complex Accessors #
#####################

sub edit_link {
    my ($self) = @_;
    return $self->{edit_link} if defined $self->{edit_link};
    my $cgi = new Bugzilla::CGI($self->url);
    if (!$cgi->param('query_format')
        || !IsValidQueryType(scalar $cgi->param('query_format')))
    {
        $cgi->param('query_format', 'advanced');
    }
    $self->{edit_link} = $cgi->canonicalise_query;
    return $self->{edit_link};
}

sub used_in_whine {
    my ($self) = @_;
    return $self->{used_in_whine} if exists $self->{used_in_whine};
    ($self->{used_in_whine}) = Bugzilla->dbh->selectrow_array(
        'SELECT 1 FROM whine_events INNER JOIN whine_queries
                       ON whine_events.id = whine_queries.eventid
          WHERE whine_events.owner_userid = ? AND query_name = ?', undef, 
          $self->{userid}, $self->name) || 0;
    return $self->{used_in_whine};
}

sub link_in_footer {
    my ($self, $user) = @_;
    # We only cache link_in_footer for the current Bugzilla->user.
    return $self->{link_in_footer} if exists $self->{link_in_footer} && !$user;
    my $user_id = $user ? $user->id : Bugzilla->user->id;
    my $link_in_footer = Bugzilla->dbh->selectrow_array(
        'SELECT 1 FROM namedqueries_link_in_footer
          WHERE namedquery_id = ? AND user_id = ?', 
        undef, $self->id, $user_id) || 0;
    $self->{link_in_footer} = $link_in_footer if !$user;
    return $link_in_footer;
}

sub shared_with_group {
    my ($self) = @_;
    return $self->{shared_with_group} if exists $self->{shared_with_group};
    # Bugzilla only currently supports sharing with one group, even
    # though the database backend allows for an infinite number.
    my ($group_id) = Bugzilla->dbh->selectrow_array(
        'SELECT group_id FROM namedquery_group_map WHERE namedquery_id = ?',
        undef, $self->id);
    $self->{shared_with_group} = $group_id ? new Bugzilla::Group($group_id) 
                                 : undef;
    return $self->{shared_with_group};
}

sub shared_with_users {
    my $self = shift;
    my $dbh = Bugzilla->dbh;

    if (!exists $self->{shared_with_users}) {
        $self->{shared_with_users} =
          $dbh->selectrow_array('SELECT COUNT(*)
                                   FROM namedqueries_link_in_footer
                             INNER JOIN namedqueries
                                     ON namedquery_id = id
                                  WHERE namedquery_id = ?
                                    AND user_id != userid',
                                  undef, $self->id);
    }
    return $self->{shared_with_users};
}

####################
# Simple Accessors #
####################

sub url  { return $_[0]->{'query'}; }

sub user {
    my ($self) = @_;
    return $self->{user} ||=
        Bugzilla::User->new({ id => $self->{userid}, cache => 1 });
}

############
# Mutators #
############

sub set_name       { $_[0]->set('name',       $_[1]); }
sub set_url        { $_[0]->set('query',      $_[1]); }

1;

__END__

=head1 NAME

Bugzilla::Search::Saved - A saved search

=head1 SYNOPSIS

 use Bugzilla::Search::Saved;

 my $query = new Bugzilla::Search::Saved($query_id);

 my $edit_link  = $query->edit_link;
 my $search_url = $query->url;
 my $owner      = $query->user;
 my $num_subscribers = $query->shared_with_users;

=head1 DESCRIPTION

This module exists to represent a L<Bugzilla::Search> that has been
saved to the database.

This is an implementation of L<Bugzilla::Object>, and so has all the
same methods available as L<Bugzilla::Object>, in addition to what is
documented below.

=head1 METHODS

=head2 Constructors and Database Manipulation

=over

=item C<new>

Takes either an id, or the named parameters C<user> and C<name>.
C<user> can be either a L<Bugzilla::User> object or a numeric user id.

See also: L<Bugzilla::Object/new>.

=item C<preload>

Sets C<link_in_footer> for all given saved searches at once, for the
currently logged in user. This is much faster than calling this method
for each saved search individually.

=back


=head2 Accessors

These return data about the object, without modifying the object.

=over

=item C<edit_link>

A url with which you can edit the search.

=item C<url>

The CGI parameters for the search, as a string.

=item C<link_in_footer>

Whether or not this search should be displayed in the footer for the
I<current user> (not the owner of the search, but the person actually
using Bugzilla right now).

=item C<type>

The numeric id of the type of search this is (from L<Bugzilla::Constants>).

=item C<shared_with_group>

The L<Bugzilla::Group> that this search is shared with. C<undef> if
this search isn't shared.

=item C<shared_with_users>

Returns how many users (besides the author of the saved search) are
using the saved search, i.e. have it displayed in their footer.

=back

=head1 B<Methods in need of POD>

=over

=item create

=item set_name

=item set_url

=item rename_field_value

=item user

=item used_in_whine

=back