From 3d600088424d2e1f71c7b5ae7571a8a101e9e8e2 Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Tue, 24 Mar 2015 15:53:55 -0700
Subject: provide a site-wide expiration policy without loopholes - still need
 work to reduce the impact of expiration queries.

---
 include/expire.php   | 36 ++++++++++++++++++++++++++++--------
 include/identity.php |  4 +---
 include/items.php    |  2 +-
 3 files changed, 30 insertions(+), 12 deletions(-)

diff --git a/include/expire.php b/include/expire.php
index a229bd4ac..8fedf71b5 100644
--- a/include/expire.php
+++ b/include/expire.php
@@ -7,7 +7,11 @@ function expire_run($argv, $argc){
 
 	cli_startup();
 
-	$r = q("select id from item where (item_restrict & %d)>0 and not (item_restrict & %d)>0 and changed < %s - INTERVAL %s",
+
+	// perform final cleanup on previously delete items
+
+	$r = q("select id from item where (item_restrict & %d) > 0 and (item_restrict & %d) = 0 
+		and changed < %s - INTERVAL %s",
 		intval(ITEM_DELETED),
 		intval(ITEM_PENDING_REMOVE),
 		db_utcnow(), db_quoteinterval('10 DAY')
@@ -19,8 +23,9 @@ function expire_run($argv, $argc){
 	}
 
 	// physically remove anything that has been deleted for more than two months
+	// FIXME - this is a wretchedly inefficient query
 
-	$r = q("delete from item where ( item_restrict & %d )>0 and changed < %s - INTERVAL %s",
+	$r = q("delete from item where ( item_restrict & %d ) > 0 and changed < %s - INTERVAL %s",
 		intval(ITEM_PENDING_REMOVE),
 		db_utcnow(), db_quoteinterval('36 DAY')
 	);
@@ -32,12 +37,28 @@ function expire_run($argv, $argc){
 
 	logger('expire: start', LOGGER_DEBUG);
 	
+	$site_expire = get_config('system', 'default_expire_days');
+	if(intval($site_expire)) {
+		$r = q("SELECT channel_id, channel_address, channel_pageflags, channel_expire_days from channel where true");
+	}
+	else {
+		$r = q("SELECT channel_id, channel_address, channel_pageflags, channel_expire_days from channel where channel_expire_days != 0");
+	}
 
-	$r = q("SELECT channel_id, channel_address, channel_expire_days from channel where channel_expire_days != 0");
-	if($r && count($r)) {
+	if($r) {
 		foreach($r as $rr) {
+
+			// expire the sys channel separately
+			if($rr['channel_pageflags'] & PAGE_SYSTEM)
+				continue;
+
+			// if the site expiration is non-zero and less than person expiration, use that
 			logger('Expire: ' . $rr['channel_address'] . ' interval: ' . $rr['channel_expire_days'], LOGGER_DEBUG);
-			item_expire($rr['channel_id'],$rr['channel_expire_days']);
+			item_expire($rr['channel_id'],
+				((intval($site_expire) && intval($site_expire) < intval($rr['channel_expire_days'])) 
+				? $site_expire 
+				: $rr['channel_expire_days'])
+			);
 		}
 	}
 
@@ -48,14 +69,13 @@ function expire_run($argv, $argc){
 		// this should probably just fetch the channel_expire_days from the sys channel,
 		// but there's no convenient way to set it.
 
-		$expire_days = get_config('externals','expire_days');
+		$expire_days = get_config('system','sys_expire_days');
 		if($expire_days === false)
 			$expire_days = 30;
 		if($expire_days)
-			item_expire($x['channel_id'],$expire_days);
+			item_expire($x['channel_id'],(($site_expire && $site_expire < $expire_days) ? $site_expire : $expire_days));
 	}
 
-
 	return;
 }
 
diff --git a/include/identity.php b/include/identity.php
index 079c1a245..af6cb74d2 100644
--- a/include/identity.php
+++ b/include/identity.php
@@ -249,9 +249,7 @@ function create_identity($arr) {
 		}
 	}
 
-
-	$expire = get_config('system', 'default_expire_days');
-	$expire = (($expire===false)? '0': $expire);
+	$expire = 0;
 
 	$r = q("insert into channel ( channel_account_id, channel_primary, 
 		channel_name, channel_address, channel_guid, channel_guid_sig,
diff --git a/include/items.php b/include/items.php
index d1998bd0a..a1515ad88 100755
--- a/include/items.php
+++ b/include/items.php
@@ -3922,7 +3922,7 @@ function item_expire($uid,$days) {
 
 	$expire_network_only = 1;
 
-	$sql_extra = ((intval($expire_network_only)) ? " AND not (item_flags & " . intval(ITEM_WALL) . ")>0 " : "");
+	$sql_extra = ((intval($expire_network_only)) ? " AND not (item_flags & " . intval(ITEM_WALL) . ") > 0 " : "");
 
 	$r = q("SELECT * FROM `item` 
 		WHERE `uid` = %d 
-- 
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