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The global contact for server users is now stored directly
[friendica.git] / include / group.php
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                 $r = q("SELECT `group_member`.`contact-id`, `contact`.* FROM `group_member`
160                         INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
161                         WHERE `gid` = %d AND `group_member`.`uid` = %d AND
162                                 NOT `contact`.`self` AND NOT `contact`.`blocked` AND NOT `contact`.`pending`
163                                 ORDER BY `contact`.`name` ASC ",
164                         intval($gid),
165                         intval(local_user())
166                 );
167                 if(count($r))
168                         $ret = $r;
169         }
170         return $ret;
171 }
172
173 function group_public_members($gid) {
174         $ret = 0;
175         if(intval($gid)) {
176                 $r = q("SELECT `contact`.`id` AS `contact-id` FROM `group_member`
177                         INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
178                         WHERE `gid` = %d AND `group_member`.`uid` = %d
179                         AND  `contact`.`network` = '%s' AND `contact`.`notify` != '' ",
180                         intval($gid),
181                         intval(local_user()),
182                         dbesc(NETWORK_OSTATUS)
183                 );
184                 if(count($r))
185                         $ret = count($r);
186         }
187         return $ret;
188 }
189
190
191 function mini_group_select($uid,$gid = 0, $label = "") {
192
193         $grps = array();
194         $o = '';
195
196         $r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
197                 intval($uid)
198         );
199         $grps[] = array('name' => '', 'id' => '0', 'selected' => '');
200         if(count($r)) {
201                 foreach($r as $rr) {
202                         $grps[] = array('name' => $rr['name'], 'id' => $rr['id'], 'selected' => (($gid == $rr['id']) ? 'true' : ''));
203                 }
204
205         }
206         logger('groups: ' . print_r($grps,true));
207
208         if ($label == "")
209                 $label = t('Default privacy group for new contacts');
210
211         $o = replace_macros(get_markup_template('group_selection.tpl'), array(
212                 '$label' => $label,
213                 '$groups' => $grps
214         ));
215         return $o;
216 }
217
218
219 /**
220  * @brief Create group sidebar widget
221  *
222  * @param string $every
223  * @param string $each
224  * @param string $editmode
225  *      'standard' => include link 'Edit groups'
226  *      'extended' => include link 'Create new group'
227  *      'full' => include link 'Create new group' and provide for each group a link to edit this group
228  * @param int $group_id
229  * @param int $cid
230  * @return string
231  */
232 function group_side($every="contacts",$each="group",$editmode = "standard", $group_id = 0, $cid = 0) {
233
234         $o = '';
235
236         if(! local_user())
237                 return '';
238
239         $groups = array();
240
241         $groups[] = array(
242                 'text'  => t('Everybody'),
243                 'id' => 0,
244                 'selected' => (($group_id == 0) ? 'group-selected' : ''),
245                 'href'  => $every,
246         );
247
248
249
250         $r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
251                 intval($_SESSION['uid'])
252         );
253         $member_of = array();
254         if($cid) {
255                 $member_of = groups_containing(local_user(),$cid);
256         }
257
258         if(count($r)) {
259                 foreach($r as $rr) {
260                         $selected = (($group_id == $rr['id']) ? ' group-selected' : '');
261
262                         if ($editmode == "full") {
263                                 $groupedit = array(
264                                         'href' => "group/".$rr['id'],
265                                         'title' => t('edit'),
266                                 );
267                         } else {
268                                 $groupedit = null;
269                         }
270
271                         $groups[] = array(
272                                 'id'            => $rr['id'],
273                                 'cid'           => $cid,
274                                 'text'          => $rr['name'],
275                                 'selected'      => $selected,
276                                 'href'          => $each."/".$rr['id'],
277                                 'edit'          => $groupedit,
278                                 'ismember'      => in_array($rr['id'],$member_of),
279                         );
280                 }
281         }
282
283
284         $tpl = get_markup_template("group_side.tpl");
285         $o = replace_macros($tpl, array(
286                 '$title'        => t('Groups'),
287                 'newgroup'      => (($editmode == "extended") || ($editmode == "full") ? 1 : ''),
288                 '$editgroupstext' => t('Edit groups'),
289                 'grouppage'     => "group/",
290                 '$edittext'     => t('Edit group'),
291                 '$createtext'   => t('Create a new group'),
292                 '$creategroup'  => t('Group Name: '),
293                 '$form_security_token' => get_form_security_token("group_edit"),
294                 '$ungrouped'    => (($every === 'contacts') ? t('Contacts not in any group') : ''),
295                 '$groups'       => $groups,
296                 '$add'          => t('add'),
297         ));
298
299
300         return $o;
301 }
302
303 function expand_groups($a,$check_dead = false, $use_gcontact = false) {
304         if(! (is_array($a) && count($a)))
305                 return array();
306         $groups = implode(',', $a);
307         $groups = dbesc($groups);
308
309         if ($use_gcontact)
310                 $r = q("SELECT `gcontact`.`id` AS `contact-id` FROM `group_member`
311                                 INNER JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
312                                 INNER JOIN `gcontact` ON `gcontact`.`nurl` = `contact`.`nurl`
313                         WHERE `gid` IN ($groups)");
314         else
315                 $r = q("SELECT `contact-id` FROM `group_member` WHERE `gid` IN ( $groups )");
316
317
318         $ret = array();
319         if(count($r))
320                 foreach($r as $rr)
321                         $ret[] = $rr['contact-id'];
322         if($check_dead AND !$use_gcontact) {
323                 require_once('include/acl_selectors.php');
324                 $ret = prune_deadguys($ret);
325         }
326         return $ret;
327 }
328
329
330 function member_of($c) {
331
332         $r = q("SELECT `group`.`name`, `group`.`id` FROM `group` INNER JOIN `group_member` ON `group_member`.`gid` = `group`.`id` WHERE `group_member`.`contact-id` = %d AND `group`.`deleted` = 0 ORDER BY `group`.`name`  ASC ",
333                 intval($c)
334         );
335
336         return $r;
337
338 }
339
340 function groups_containing($uid,$c) {
341
342         $r = q("SELECT `gid` FROM `group_member` WHERE `uid` = %d AND `group_member`.`contact-id` = %d ",
343                 intval($uid),
344                 intval($c)
345         );
346
347         $ret = array();
348         if(count($r)) {
349                 foreach($r as $rr)
350                         $ret[] = $rr['gid'];
351         }
352
353         return $ret;
354 }
355 /**
356  * @brief count unread group items
357  *
358  * Count unread items of each groups
359  *
360  * @return array
361  *      'id' => group id
362  *      'name' => group name
363  *      'count' => counted unseen group items
364  *
365  */
366 function groups_count_unseen() {
367
368         $r = q("SELECT `group`.`id`, `group`.`name`,
369                         (SELECT COUNT(*) FROM `item`
370                                 WHERE `uid` = %d AND `unseen` AND
371                                         `contact-id` IN (SELECT `contact-id` FROM `group_member`
372                                                                 WHERE `group_member`.`gid` = `group`.`id` AND `group_member`.`uid` = %d)) AS `count`
373                         FROM `group` WHERE `group`.`uid` = %d;",
374                 intval(local_user()),
375                 intval(local_user()),
376                 intval(local_user())
377         );
378
379         return $r;
380 }
381
382 /**
383  * @brief Returns the default group for a given user and network
384  *
385  * @param int $uid User id
386  * @param string $network network name
387  *
388  * @return int group id
389  */
390 function get_default_group($uid, $network = "") {
391
392         $default_group = 0;
393
394         if ($network == NETWORK_OSTATUS)
395                 $default_group = get_pconfig($uid, "ostatus", "default_group");
396
397         if ($default_group != 0)
398                 return $default_group;
399
400         $g = q("SELECT `def_gid` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
401         if($g && intval($g[0]["def_gid"]))
402                 $default_group = $g[0]["def_gid"];
403
404         return $default_group;
405 }