3 require_once('include/security.php');
4 require_once('include/bbcode.php');
5 require_once('include/items.php');
8 function like_content(&$a) {
10 if(! local_user() && ! remote_user()) {
14 $verb = notags(trim($_GET['verb']));
23 $activity = ACTIVITY_LIKE;
27 $activity = ACTIVITY_DISLIKE;
35 $item_id = (($a->argc > 1) ? notags(trim($a->argv[1])) : 0);
37 logger('like: verb ' . $verb . ' item ' . $item_id);
40 $r = q("SELECT * FROM `item` WHERE ( `id` = '%s' OR `uri` = '%s') AND `id` = `parent` LIMIT 1",
45 if(! $item_id || (! count($r))) {
46 logger('like: no item ' . $item_id);
52 $owner_uid = $item['uid'];
54 if(! can_write_wall($a,$owner_uid)) {
61 // The top level post may have been written by somebody on another system
62 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
63 intval($item['contact-id']),
69 $remote_owner = $r[0];
72 // this represents the post owner on this system.
74 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
75 WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
82 logger('like: no owner');
87 $remote_owner = $owner;
90 // This represents the person posting
92 if((local_user()) && (local_user() == $owner_uid)) {
96 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
97 intval($_SESSION['visitor_id']),
108 $r = q("SELECT `id` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0
109 AND `contact-id` = %d AND ( `parent` = '%s' OR `parent-uri` = '%s') LIMIT 1",
111 intval($contact['id']),
116 // Already voted, undo it
117 $r = q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
118 dbesc(datetime_convert()),
122 // Clean up the `sign` table
123 $r2 = q("DELETE FROM `sign` WHERE `iid` = %d",
127 // Save the author information for the unlike in case we need to relay to Diaspora
128 // Note that we can only create a signature for a user of the local server. We don't have
129 // a key for remote users. That is ok, because if a remote user is "unlike"ing a post, it
130 // means we are the relay, and for relayable_retractions, Diaspora
131 // only checks the parent_author_signature if it doesn't have to relay further
133 // If $item['resource-id'] exists, it means the item is a photo. Diaspora doesn't support
134 // likes on photos, so don't bother.
136 if(($activity === ACTIVITY_LIKE) && (! $item['resource-id'])) {
137 $signed_text = $r[0]['guid'] . ';' . 'Like';
139 if( contact['network'] === NETWORK_DIASPORA)
140 $diaspora_handle = $contact['addr'];
141 else { // Only works for NETWORK_DFRN
142 $contact_baseurl = substr($contact['url'], strpos($contact['url'],'://') + 3, strpos($contact['url'],'/profile') - 1);
143 $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl;
145 // Get contact's private key if he's a user of the local Friendica server
146 $r2 = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1",
147 dbesc(contact['url'])
151 $contact_uid = $r2['uid'];
152 $r2 = q("SELECT prvkey FROM user WHERE id = %d LIMIT 1",
157 $authorsig = base64_encode(rsa_sign($signed_text,$r2['prvkey'],'sha256'));
161 if(! isset($authorsig))
164 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
168 dbesc($diaspora_handle)
172 // proc_run('php',"include/notifier.php","like","$post_id"); // $post_id isn't defined here!
173 proc_run('php',"include/notifier.php","like","$r[0]['id']");
177 $uri = item_new_uri($a->get_hostname(),$owner_uid);
179 $post_type = (($item['resource-id']) ? t('photo') : t('status'));
180 $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
181 $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ;
182 $body = $item['body'];
187 <type>$objtype</type>
189 <id>{$item['uri']}</id>
192 <content>$body</content>
196 $bodyverb = t('%1$s likes %2$s\'s %3$s');
197 if($verb === 'dislike')
198 $bodyverb = t('%1$s doesn\'t like %2$s\'s %3$s');
200 if(! isset($bodyverb))
206 $arr['uid'] = $owner_uid;
207 $arr['contact-id'] = $contact['id'];
208 $arr['type'] = 'activity';
209 $arr['wall'] = $item['wall'];
211 $arr['gravity'] = GRAVITY_LIKE;
212 $arr['parent'] = $item['id'];
213 $arr['parent-uri'] = $item['uri'];
214 $arr['owner-name'] = $remote_owner['name'];
215 $arr['owner-link'] = $remote_owner['url'];
216 $arr['owner-avatar'] = $remote_owner['thumb'];
217 $arr['author-name'] = $contact['name'];
218 $arr['author-link'] = $contact['url'];
219 $arr['author-avatar'] = $contact['thumb'];
221 $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
222 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
223 $plink = '[url=' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
224 $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
226 $arr['verb'] = $activity;
227 $arr['object-type'] = $objtype;
228 $arr['object'] = $obj;
229 $arr['allow_cid'] = $item['allow_cid'];
230 $arr['allow_gid'] = $item['allow_gid'];
231 $arr['deny_cid'] = $item['deny_cid'];
232 $arr['deny_gid'] = $item['deny_gid'];
235 $arr['last-child'] = 0;
237 $post_id = item_store($arr);
239 if(! $item['visible']) {
240 $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
247 // Save the author information for the like in case we need to relay to Diaspora
248 // Note that we can only create a signature for a user of the local server. We don't have
249 // a key for remote users. That is ok, because if a remote user is "unlike"ing a post, it
250 // means we are the relay, and for relayable_retractions, Diaspora
251 // only checks the parent_author_signature if it doesn't have to relay further
253 if(($activity === ACTIVITY_LIKE) && ($post_type === t('status'))) {
254 if( contact['network'] === NETWORK_DIASPORA)
255 $diaspora_handle = $contact['addr'];
256 else { // Only works for NETWORK_DFRN
257 $contact_baseurl = substr($contact['url'], strpos($contact['url'],'://') + 3, strpos($contact['url'],'/profile') - 1);
258 $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl;
260 // Get contact's private key if he's a user of the local Friendica server
261 $r2 = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1",
262 dbesc(contact['url'])
266 $contact_uid = $r2['uid'];
267 $r2 = q("SELECT prvkey FROM user WHERE id = %d LIMIT 1",
272 $contact_uprvkey = $r2['prvkey'];
276 $r = q("SELECT guid, parent FROM `item` WHERE id = %d LIMIT 1",
280 $p = q("SELECT guid FROM `item` WHERE id = %d AND parent = %d LIMIT 1",
281 intval($r[0]['parent'),
282 intval($r[0]['parent')
285 $signed_text = $r[0]['guid'] . ';Post;' . $p[0]['guid'] . ';true;' . $diaspora_handle;
287 if(isset($contact_uprvkey))
288 $authorsig = base64_encode(rsa_sign($signed_text,$contact_uprvkey,'sha256'));
292 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
296 dbesc($diaspora_handle)
303 $arr['id'] = $post_id;
305 call_hooks('post_local_end', $arr);
307 proc_run('php',"include/notifier.php","like","$post_id");
310 // return; // NOTREACHED