add owner's birthday information to feed (if allowed to)

1 files changed, 45 insertions, 5 deletions

diff --git a/include/items.php b/include/items.php
index 4c18938b0..c63e5c208 100644
--- a/include/items.php
+++ b/include/items.php
@@ -2,7 +2,7 @@
 
 require_once('bbcode.php');
 
-function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update, $direction = 0) {
+function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
 
 
 	// default permissions - anonymous user
@@ -14,13 +14,14 @@ function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update, $direction = 0) {
 		AND `deny_gid`  = '' 
 	";
 
-	if(strlen($owner_id) && ! intval($owner_id)) {
-		$r = q("SELECT `uid`, `nickname` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
-			dbesc($owner_id)
+	if(strlen($owner_nick) && ! intval($owner_nick)) {
+		$r = q("SELECT `uid`, `nickname`, `timezone` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
+			dbesc($owner_nick)
 		);
 		if(count($r)) {
 			$owner_id = $r[0]['uid'];
 			$owner_nick = $r[0]['nickname'];
+			$owner_tz = $r[0]['timezone'];
 		}
 	}
 
@@ -34,6 +35,44 @@ function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update, $direction = 0) {
 	else
 		killme();
 
+	/**
+	 *
+	 * Determine the next birthday, but only if the birthday is published
+	 * in the default profile. We _could_ also look for a private profile that the
+	 * recipient can see, but somebody could get mad at us if they start getting
+	 * public birthday greetings when they haven't made this info public. 
+	 *
+	 * Assuming we are able to publish this info, we are then going to convert
+	 * the start time from the owner's timezone to UTC. 
+	 *
+	 * This will potentially solve the problem found with some social networks
+	 * where birthdays are converted to the viewer's timezone and salutations from
+	 * elsewhere in the world show up on the wrong day. We will convert it to the
+	 * viewer's timezone also, but first we are going to convert it from the birthday
+	 * person's timezone to GMT - so the viewer may find the birthday starting at
+	 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
+	 *
+	 */
+
+	$birthday = '';
+
+	$p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
+		intval($owner_id)
+	);
+
+	if($p && count($p)) {
+		$tmp_dob = substr($p[0]['dob'],5);
+		if(intval($tmp_dob)) {
+			$y = datetime_convert($owner_tz,$owner_tz,'now','Y');
+			$bd = $y . '-' . $tmp_dob . ' 00:00';
+			$t_dob = strtotime($bd);
+			$now = strtotime(datetime_convert($owner_tz,$owner_tz,'now'));
+			if($t_dob < $now)
+				$bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
+			$birthday = datetime_convert($owner_tz,'UTC',$bd,ATOM_TIME); 
+		}
+	}
+
 	if($dfrn_id && $dfrn_id != '*') {
 
 		$sql_extra = '';
@@ -154,7 +193,8 @@ function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update, $direction = 0) {
 		'$thumb'        => xmlify($owner['thumb']),
 		'$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 		'$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
-		'$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) 
+		'$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) , 
+		'$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : '')
 	));
 
 	call_hooks('atom_feed', $atom);