implement time travelling posts

3 files changed, 20 insertions, 0 deletions

diff --git a/boot.php b/boot.php
index 80d7fe9d4..c9d0f7fe6 100755
--- a/boot.php
+++ b/boot.php
@@ -413,6 +413,7 @@ define ( 'ITEM_SPAM',            0x0008);
 define ( 'ITEM_DELETED',         0x0010);
 define ( 'ITEM_UNPUBLISHED',     0x0020);
 define ( 'ITEM_WEBPAGE',         0x0040);  // is a static web page, not a conversational item
+define ( 'ITEM_DELAYED_PUBLISH', 0x0080); 
 
 /**
  * Item Flags
diff --git a/include/items.php b/include/items.php
index 9abc2e330..ca8cbdfc0 100755
--- a/include/items.php
+++ b/include/items.php
@@ -1486,6 +1486,15 @@ function item_store($arr,$force_parent = false) {
 	
 	$arr['item_flags'] = $arr['item_flags'] | ITEM_UNSEEN;
 
+
+	// handle time travelers
+	// Allow a bit of fudge in case somebody just has a slightly slow/fast clock
+
+	$d1 = new DateTime('now +10 minutes');
+	$d2 = new DateTime($arr['created']);
+	if($d2 > $d1)
+		$arr['item_restrict'] = $arr['item_restrict'] | ITEM_DELAYED_PUBLISH;
+
 	$arr['llink'] = z_root() . '/display/' . $arr['mid'];
 
 	if(! $arr['plink'])
diff --git a/include/poller.php b/include/poller.php
index 33e882735..43c7b497b 100644
--- a/include/poller.php
+++ b/include/poller.php
@@ -38,6 +38,16 @@ function poller_run($argv, $argc){
 		intval(ACCOUNT_EXPIRED)
 	);
   
+	// publish any applicable items that were set to be published in the future
+	// (time travel posts)
+
+	q("update item set item_restrict = ( item_restrict ^ %d ) 
+		where ( item_restrict & %d ) and created <= UTC_TIMESTAMP() ",
+		intval(ITEM_DELAYED_PUBLISH),
+		intval(ITEM_DELAYED_PUBLISH)
+	);
+
+
 	$abandon_days = intval(get_config('system','account_abandon_days'));
 	if($abandon_days < 1)
 		$abandon_days = 0;