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authorfriendica <info@friendica.com>2013-01-24 16:44:10 -0800
committerfriendica <info@friendica.com>2013-01-24 16:44:10 -0800
commitcb5a20ba2cbad131267542ff55b394a9763b4c2c (patch)
tree4e4fd9e766b9c0acd04b9a81d7d4b244d66ad4b8 /include
parent4f7f547190f5ec2557739aad6b2c09e3f45cdc76 (diff)
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uncomplicate item deletion and fixup all the other linked tables
Diffstat (limited to 'include')
-rwxr-xr-xinclude/items.php173
-rw-r--r--include/notifier.php7
-rw-r--r--include/zot.php15
3 files changed, 81 insertions, 114 deletions
diff --git a/include/items.php b/include/items.php
index 04d088d44..bce1f2dfa 100755
--- a/include/items.php
+++ b/include/items.php
@@ -4017,17 +4017,21 @@ function drop_items($items) {
}
+// Delete item with given item $id. $interactive means we're running interactively, and must check
+// permissions to carry out this act. If it is non-interactive, we are deleting something at the
+// system's request and do not check permission. This is very important to know.
+
function drop_item($id,$interactive = true) {
$a = get_app();
// locate item to be deleted
- $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
+ $r = q("SELECT * FROM item WHERE id = %d LIMIT 1",
intval($id)
);
- if(! count($r)) {
+ if(! $r) {
if(! $interactive)
return 0;
notice( t('Item not found.') . EOL);
@@ -4036,128 +4040,101 @@ function drop_item($id,$interactive = true) {
$item = $r[0];
- $owner = $item['uid'];
-
- $cid = 0;
-
- // check if logged in user is either the author or owner of this item
-
- if(is_array($_SESSION['remote'])) {
- foreach($_SESSION['remote'] as $visitor) {
- if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
- $cid = $visitor['cid'];
- break;
- }
- }
- }
-
+ $ok_to_delete = false;
- if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
-
- // delete the item
-
- $r = q(" UPDATE `item` SET
- `item_restrict` = (item_restrict|%d) ,
- `title` = '',
- `body` = '',
- `changed` = '%s',
- `edited` = '%s' WHERE `id` = %d LIMIT 1",
- intval(ITEM_DELETED),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- intval($item['id'])
- );
+ // system deletion
+ if(! $interactive)
+ $ok_to_delete = true;
+ // owner deletion
+ if(local_user() && local_user() == $item['uid'])
+ $ok_to_delete = true;
+ // author deletion
+ $observer = $a->get_observer();
+ if($observer && $observer['xchan_hash'] && ($observer['xchan_hash'] === $item['author_xchan']))
+ $ok_to_delete = true;
- // clean up categories and tags so they don't end up as orphans
+ if($ok_to_delete) {
- $matches = false;
- $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
- if($cnt) {
- foreach($matches as $mtch) {
- file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
- }
- }
-
- $matches = false;
-
- $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
- if($cnt) {
- foreach($matches as $mtch) {
- file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
- }
- }
-
- // If item is a link to a photo resource, nuke all the associated photos
- // (visitors will not have photo resources)
- // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
- // generate a resource_id and therefore aren't intimately linked to the item.
-
- if(strlen($item['resource_id'])) {
- q("DELETE FROM `photo` WHERE `resource_id` = '%s' AND `uid` = %d ",
- dbesc($item['resource_id']),
- intval($item['uid'])
- );
- // ignore the result
- }
-
- // If item is a link to an event, nuke the event record.
-
- if(intval($item['event-id'])) {
- q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
- intval($item['event-id']),
- intval($item['uid'])
- );
- // ignore the result
- }
-
- // clean up item_id and sign meta-data tables
-
- $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
- intval($item['id']),
- intval($item['uid'])
- );
+ $notify_id = intval($item['id']);
- $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
+ $items = q("select * from item where parent = %d and uid = %d",
intval($item['id']),
intval($item['uid'])
);
-
- // If it's the parent of a comment thread, kill all the kids
-
- if($item['uri'] == $item['parent_uri']) {
- $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
- WHERE `parent_uri` = '%s' AND `uid` = %d ",
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc($item['parent_uri']),
- intval($item['uid'])
- );
- // ignore the result
+ if($items) {
+ foreach($items as $i)
+ delete_item_lowlevel($i);
}
- $drop_id = intval($item['id']);
+ if(! $interactive)
+ return 1;
// send the notification upstream/downstream as the case may be
+ // only send notifications to others if this is the owner's wall item.
- if(! $interactive)
- return $owner;
+ if($item['item_flags'] & ITEM_WALL)
+ proc_run('php','include/notifier.php','drop',$notify_id);
- proc_run('php',"include/notifier.php","drop","$drop_id");
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
- //NOTREACHED
+
}
else {
if(! $interactive)
return 0;
notice( t('Permission denied.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
- //NOTREACHED
}
}
+// This function does not check for permission and does not send notifications and does not check recursion.
+// It merely destroys all resources associated with an item.
+// Please do not use without a suitable wrapper.
+
+function delete_item_lowlevel($item) {
+
+ $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), title = '', body = '',
+ changed = '%s', edited = '%s' WHERE id = %d LIMIT 1",
+ intval(ITEM_DELETED),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ intval($item['id'])
+ );
+
+ $r = q("delete from term where otype = %d and oid = %d limit 1",
+ intval(TERM_OBJ_POST),
+ intval($item['id'])
+ );
+
+ // If item is a link to a photo resource, nuke all the associated photos
+ // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
+ // generate a resource_id and therefore aren't intimately linked to the item.
+
+ if(strlen($item['resource_id'])) {
+ if($item['resource_type'] === 'event') {
+ q("delete from event where event_hash = '%s' and uid = %d limit 1",
+ dbesc($item['resource_id']),
+ intval($item['uid'])
+ );
+ }
+ elseif($item['resource_type'] === 'photo') {
+ q("DELETE FROM `photo` WHERE `resource_id` = '%s' AND `uid` = %d ",
+ dbesc($item['resource_id']),
+ intval($item['uid'])
+ );
+ }
+ }
+
+ q("delete from item_id where iid = %d and uid = %d limit 1",
+ intval($item['id']),
+ intval($item['uid'])
+ );
+
+ return true;
+}
+
function first_post_date($uid,$wall = false) {
diff --git a/include/notifier.php b/include/notifier.php
index 74da8f2f8..dddf0aade 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -240,9 +240,10 @@ function notifier_run($argv, $argc){
// $cmd === 'relay' indicates the owner is sending it to the original recipients
// don't allow the item in the relay command to relay to owner under any circumstances, it will loop
- logger('notifier: relay_to_owner: ' . (($relay_to_owner) ? 'true' : 'false'));
- logger('notifier: top_level_post: ' . (($top_level_post) ? 'true' : 'false'));
- logger('notifier: target_item_flags: ' . $target_item['item_flags'] . ' ' . (($target_item['item_flags'] & ITEM_ORIGIN ) ? 'true' : 'false'));
+
+ logger('notifier: relay_to_owner: ' . (($relay_to_owner) ? 'true' : 'false'), LOGGER_DATA);
+ logger('notifier: top_level_post: ' . (($top_level_post) ? 'true' : 'false'), LOGGER_DATA);
+ logger('notifier: target_item_flags: ' . $target_item['item_flags'] . ' ' . (($target_item['item_flags'] & ITEM_ORIGIN ) ? 'true' : 'false'), LOGGER_DATA);
// tag_deliver'd post which needs to be sent back to the original author
diff --git a/include/zot.php b/include/zot.php
index f35c6f93e..5c930aba4 100644
--- a/include/zot.php
+++ b/include/zot.php
@@ -998,19 +998,8 @@ function delete_imported_item($sender,$item,$uid) {
return;
}
- $r = q("update item set body = '', title = '', item_restrict = %d, edited = '%s', changed = '%s'
- where ( thr_parent = '%s' or parent_uri = '%s' ) and uid = %d",
- intval(ITEM_DELETED),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc($item['uri']),
- dbesc($item['uri']),
- intval($uid)
- );
-
- if(! $r)
- logger("delete_imported_item: db update failed. Item = {$item['uri']} uid = $uid");
-
+ require_once('include/items.php');
+ drop_item($r[0]['id'],false);
}
function process_mail_delivery($sender,$arr,$deliveries) {