like, dislike, activity streams, etc.

1 files changed, 171 insertions, 0 deletions

diff --git a/mod/like.php b/mod/like.php
new file mode 100644
index 000000000..d52b3a324
--- /dev/null
+++ b/mod/like.php
@@ -0,0 +1,171 @@
+<?php
+
+require_once('include/security.php');
+require_once('include/bbcode.php');
+require_once('include/items.php');
+
+
+function like_content(&$a) {
+
+	if(! local_user() && ! remote_user()) {
+		return;
+	}
+
+	$verb = notags(trim($_GET['verb']));
+
+	if(! $verb)
+		$verb = 'like';
+
+	switch($verb) {
+		case 'like':
+			$activity = ACTIVITY_LIKE;
+			break;
+		case 'dislike':
+			$activity = ACTIVITY_DISLIKE;
+			break;
+		case 'unlike':
+			$activity = ACTIVITY_LIKE;
+			break;
+		case 'undislike':
+			$activity = ACTIVITY_DISLIKE;
+			break;
+		default:
+			return;
+			break;
+	}
+
+
+	$item_id = (($a->argc > 1) ? notags(trim($a->argv[1])) : 0);
+
+	$r = q("SELECT * FROM `item` WHERE ( `id` = '%s' OR `uri` = '%s') AND `id` = `parent` LIMIT 1",
+		dbesc($item_id),
+		dbesc($item_id)
+	);
+
+	if(! $item_id || (! count($r))) {
+		return;
+	}
+
+	$item = $r[0];
+
+	$owner_uid = $item['uid'];
+
+	if(! can_write_wall($a,$owner_uid)) {
+		return;
+	}
+
+	$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
+		WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
+		intval($owner_uid)
+	);
+	if(count($r))
+		$owner = $r[0];
+
+	if(! $owner) {
+		return;
+	}
+
+
+	if((local_user()) && (get_uid() == $owner_uid)) {
+		$contact = $owner;
+	}
+	else {
+		$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
+			intval($_SESSION['visitor_id']),
+			intval($owner_uid)
+		);
+		if(count($r))
+			$contact = $r[0];
+	}
+	if(! $contact) {
+		return;
+	}
+
+	$r = q("SELECT `id` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0 
+		AND `contact-id` = %d AND ( `parent` = '%s' OR `parent-uri` = '%s') LIMIT 1",
+		dbesc($activity),
+		intval($contact['id']),
+		dbesc($item_id),
+		dbesc($item_id)
+	);
+	if(count($r)) {
+		// Already voted, undo it
+		$r = q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
+			dbesc(datetime_convert()),
+			intval($r[0]['id'])
+		);
+
+		$php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
+
+		proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"like\" \"$post_id\" > notify.out &",
+			array(),$foo));
+		return;
+	}
+
+	$uri = item_new_uri($a->get_hostname(),$owner_uid);
+
+	$post_type = (($item['resource-id']) ? t('photo') : t('status'));
+	$objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE ); 
+	$link = $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'];
+	$body = $item['body'];
+
+	$obj = <<< EOT
+
+	<object>
+		<type>$objtype</type>
+		<local>1</local>
+		<id>{$item['uri']}</id>
+		<link>$link</link>
+		<title></title>
+		<content>$body</content>
+	</object>
+EOT;
+	if($verb == 'like')
+		$bodyverb = t('likes');
+	if($verb == 'dislike')
+		$bodyverb = t('doesn\'t like');
+
+	if(! isset($bodyverb))
+			return; 
+
+	$arr = array();
+
+	$arr['uri'] = $uri;
+	$arr['uid'] = $owner_uid;
+	$arr['contact-id'] = $contact['id'];
+	$arr['type'] = 'activity';
+	$arr['wall'] = 1;
+	$arr['gravity'] = GRAVITY_LIKE;
+	$arr['parent'] = $item['id'];
+	$arr['parent-uri'] = $item['uri'];
+	$arr['owner-name'] = $owner['name'];
+	$arr['owner-link'] = $owner['url'];
+	$arr['owner-avatar'] = $owner['thumb'];
+	$arr['author-name'] = $contact['name'];
+	$arr['author-link'] = $contact['url'];
+	$arr['author-avatar'] = $contact['thumb'];
+	$arr['body'] = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' . ' ' .  t('likes') . ' ' 
+		. '[url=' . $owner['url'] . ']' . $owner['name'] . t('\'s') . '[/url]' . ' '
+		. '[url=' . $a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]' ;
+
+	$arr['verb'] = $activity;
+	$arr['object-type'] = $objtype;
+	$arr['object'] = $obj;
+	$arr['allow_cid'] = $item['allow_cid'];
+	$arr['allow_gid'] = $item['allow_gid'];
+	$arr['deny_cid'] = $item['deny_cid'];
+	$arr['deny_gid'] = $item['deny_gid'];
+	$arr['visible'] = 1;
+	$arr['unseen'] = 1;
+	$arr['last-child'] = 0;
+
+	$post_id = item_store($arr);	
+
+
+	$php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
+
+	proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"like\" \"$post_id\" > notify.out &",
+		array(),$foo));
+
+	return; // NOTREACHED
+}
\ No newline at end of file