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1 <?php
2
3
4 function group_add($uid,$name) {
5
6         $ret = false;
7         if(x($uid) && x($name)) {
8                 $r = group_byname($uid,$name); // check for dups
9                 if($r !== false) {
10
11                         // This could be a problem.
12                         // Let's assume we've just created a group which we once deleted
13                         // all the old members are gone, but the group remains so we don't break any security
14                         // access lists. What we're doing here is reviving the dead group, but old content which
15                         // was restricted to this group may now be seen by the new group members.
16
17                         $z = q("SELECT * FROM `group` WHERE `id` = %d LIMIT 1",
18                                 intval($r)
19                         );
20                         if(count($z) && $z[0]['deleted']) {
21                                 $r = q("UPDATE `group` SET `deleted` = 0 WHERE `uid` = %d AND `name` = '%s'",
22                                         intval($uid),
23                                         dbesc($name)
24                                 );
25                                 notice( t('A deleted group with this name was revived. Existing item permissions <strong>may</strong> apply to this group and any future members. If this is not what you intended, please create another group with a different name.') . EOL); 
26                         }
27                         return true;
28                 }
29                 $r = q("INSERT INTO `group` ( `uid`, `name` )
30                         VALUES( %d, '%s' ) ",
31                         intval($uid),
32                         dbesc($name)
33                 );
34                 $ret = $r;
35         }
36         return $ret;
37 }
38
39
40 function group_rmv($uid,$name) {
41         $ret = false;
42         if(x($uid) && x($name)) {
43                 $r = q("SELECT id FROM `group` WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
44                         intval($uid),
45                         dbesc($name)
46                 );
47                 if(count($r))
48                         $group_id = $r[0]['id'];
49                 if(! $group_id)
50                         return false;
51
52                 // remove group from default posting lists
53                 $r = q("SELECT def_gid, allow_gid, deny_gid FROM user WHERE uid = %d LIMIT 1",
54                        intval($uid)
55                 );
56                 if($r) {
57                         $user_info = $r[0];
58                         $change = false;
59
60                         if($user_info['def_gid'] == $group_id) {
61                                 $user_info['def_gid'] = 0;
62                                 $change = true;
63                         }
64                         if(strpos($user_info['allow_gid'], '<' . $group_id . '>') !== false) {
65                                 $user_info['allow_gid'] = str_replace('<' . $group_id . '>', '', $user_info['allow_gid']);
66                                 $change = true;
67                         }
68                         if(strpos($user_info['deny_gid'], '<' . $group_id . '>') !== false) {
69                                 $user_info['deny_gid'] = str_replace('<' . $group_id . '>', '', $user_info['deny_gid']);
70                                 $change = true;
71                         }
72
73                         if($change) {
74                                 q("UPDATE user SET def_gid = %d, allow_gid = '%s', deny_gid = '%s' WHERE uid = %d",
75                                   intval($user_info['def_gid']),
76                                   dbesc($user_info['allow_gid']),
77                                   dbesc($user_info['deny_gid']),
78                                   intval($uid)
79                                 );
80                         }
81                 }
82
83                 // remove all members
84                 $r = q("DELETE FROM `group_member` WHERE `uid` = %d AND `gid` = %d ",
85                         intval($uid),
86                         intval($group_id)
87                 );
88
89                 // remove group
90                 $r = q("UPDATE `group` SET `deleted` = 1 WHERE `uid` = %d AND `name` = '%s'",
91                         intval($uid),
92                         dbesc($name)
93                 );
94
95                 $ret = $r;
96
97         }
98
99         return $ret;
100 }
101
102 function group_byname($uid,$name) {
103         if((! $uid) || (! strlen($name)))
104                 return false;
105         $r = q("SELECT * FROM `group` WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
106                 intval($uid),
107                 dbesc($name)
108         );
109         if(count($r))
110                 return $r[0]['id'];
111         return false;
112 }
113
114 function group_rmv_member($uid,$name,$member) {
115         $gid = group_byname($uid,$name);
116         if(! $gid)
117                 return false;
118         if(! ( $uid && $gid && $member))
119                 return false;
120         $r = q("DELETE FROM `group_member` WHERE `uid` = %d AND `gid` = %d AND `contact-id` = %d",
121                 intval($uid),
122                 intval($gid),
123                 intval($member)
124         );
125         return $r;
126
127
128 }
129
130
131 function group_add_member($uid,$name,$member,$gid = 0) {
132         if(! $gid)
133                 $gid = group_byname($uid,$name);
134         if((! $gid) || (! $uid) || (! $member))
135                 return false;
136
137         $r = q("SELECT * FROM `group_member` WHERE `uid` = %d AND `gid` = %d AND `contact-id` = %d LIMIT 1",
138                 intval($uid),
139                 intval($gid),
140                 intval($member)
141         );
142         if(count($r))
143                 return true;    // You might question this, but
144                                 // we indicate success because the group member was in fact created
145                                 // -- It was just created at another time
146         if(! count($r))
147                 $r = q("INSERT INTO `group_member` (`uid`, `gid`, `contact-id`)
148                         VALUES( %d, %d, %d ) ",
149                         intval($uid),
150                         intval($gid),
151                         intval($member)
152         );
153         return $r;
154 }
155
156 function group_get_members($gid) {
157         $ret = array();
158         if(intval($gid)) {
159                 $r = q("SELECT `group_member`.`contact-id`, `contact`.* FROM `group_member` 
160                         INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id` 
161                         WHERE `gid` = %d AND `group_member`.`uid` = %d ORDER BY `contact`.`name` ASC ",
162                         intval($gid),
163                         intval(local_user())
164                 );
165                 if(count($r))
166                         $ret = $r;
167         }
168         return $ret;
169 }
170
171 function group_public_members($gid) {
172         $ret = 0;
173         if(intval($gid)) {
174                 $r = q("SELECT `contact`.`id` AS `contact-id` FROM `group_member` 
175                         INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id` 
176                         WHERE `gid` = %d AND `group_member`.`uid` = %d 
177                         AND  `contact`.`network` = '%s' AND `contact`.`notify` != '' ",
178                         intval($gid),
179                         intval(local_user()),
180                         dbesc(NETWORK_OSTATUS)
181                 );              
182                 if(count($r))
183                         $ret = count($r);
184         }
185         return $ret;
186 }
187
188
189 function mini_group_select($uid,$gid = 0) {
190         
191         $grps = array();
192         $o = '';
193
194         $r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
195                 intval($uid)
196         );
197         $grps[] = array('name' => '', 'id' => '0', 'selected' => '');
198         if(count($r)) {
199                 foreach($r as $rr) {
200                         $grps[] = array('name' => $rr['name'], 'id' => $rr['id'], 'selected' => (($gid == $rr['id']) ? 'true' : ''));
201                 }
202
203         }
204         logger('groups: ' . print_r($grps,true));
205
206         $o = replace_macros(get_markup_template('group_selection.tpl'), array(
207                 '$label' => t('Default privacy group for new contacts'),
208                 '$groups' => $grps 
209         ));
210         return $o;
211 }
212
213
214
215
216 function group_side($every="contacts",$each="group",$edit = false, $group_id = 0, $cid = 0) {
217
218         $o = '';
219
220         if(! local_user())
221                 return '';
222
223         $groups = array();
224         
225         $groups[] = array(
226                 'text'  => t('Everybody'),
227                 'id' => 0,
228                 'selected' => (($group_id == 0) ? 'group-selected' : ''),
229                 'href'  => $every,
230         );
231
232
233
234         $r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
235                 intval($_SESSION['uid'])
236         );
237         $member_of = array();
238         if($cid) {
239                 $member_of = groups_containing(local_user(),$cid);
240         } 
241
242         if(count($r)) {
243                 foreach($r as $rr) {
244                         $selected = (($group_id == $rr['id']) ? ' group-selected' : '');
245                         
246                         if ($edit) {
247                                 $groupedit = array(
248                                         'href' => "group/".$rr['id'],
249                                         'title' => t('edit'),
250                                 );
251                         } else {
252                                 $groupedit = null;
253                         }
254                         
255                         $groups[] = array(
256                                 'id'            => $rr['id'],
257                                 'cid'           => $cid,
258                                 'text'          => $rr['name'],
259                                 'selected'      => $selected,
260                                 'href'          => $each."/".$rr['id'],
261                                 'edit'          => $groupedit,
262                                 'ismember'      => in_array($rr['id'],$member_of),
263                         );
264                 }
265         }
266
267
268         $tpl = get_markup_template("group_side.tpl");
269         $o = replace_macros($tpl, array(
270                 '$title'                => t('Groups'),
271                 '$edittext'     => t('Edit group'),
272                 '$createtext'   => t('Create a new group'),
273     '$creategroup' => t('Group Name: '),
274     '$form_security_token' => get_form_security_token("group_edit"),
275                 '$ungrouped'    => (($every === 'contacts') ? t('Contacts not in any group') : ''),
276                 '$groups'               => $groups,
277                 '$add'                  => t('add'),
278         ));
279
280
281         return $o;
282 }
283
284 function expand_groups($a,$check_dead = false) {
285         if(! (is_array($a) && count($a)))
286                 return array();
287         $groups = implode(',', $a);
288         $groups = dbesc($groups);
289         $r = q("SELECT `contact-id` FROM `group_member` WHERE `gid` IN ( $groups )");
290         $ret = array();
291         if(count($r))
292                 foreach($r as $rr)
293                         $ret[] = $rr['contact-id'];
294         if($check_dead) {
295                 require_once('include/acl_selectors.php');
296                 $ret = prune_deadguys($ret);
297         }
298         return $ret;
299 }
300
301
302 function member_of($c) {
303
304         $r = q("SELECT `group`.`name`, `group`.`id` FROM `group` INNER JOIN `group_member` ON `group_member`.`gid` = `group`.`id` WHERE `group_member`.`contact-id` = %d AND `group`.`deleted` = 0 ORDER BY `group`.`name`  ASC ",
305                 intval($c)
306         );
307
308         return $r;
309
310 }
311
312 function groups_containing($uid,$c) {
313
314         $r = q("SELECT `gid` FROM `group_member` WHERE `uid` = %d AND `group_member`.`contact-id` = %d ",
315                 intval($uid),
316                 intval($c)
317         );
318
319         $ret = array();
320         if(count($r)) {
321                 foreach($r as $rr)
322                         $ret[] = $rr['gid'];
323         }
324
325         return $ret;
326 }