diff options
Diffstat (limited to 'Zotlabs')
| -rw-r--r-- | Zotlabs/Module/Item.php | 78 |
1 files changed, 49 insertions, 29 deletions
diff --git a/Zotlabs/Module/Item.php b/Zotlabs/Module/Item.php index b247df0fd..c466e7c82 100644 --- a/Zotlabs/Module/Item.php +++ b/Zotlabs/Module/Item.php @@ -40,57 +40,78 @@ class Item extends Controller { function init() { - if(Libzot::is_zot_request()) { + if (Libzot::is_zot_request()) { $conversation = false; $item_id = argv(1); - if(! $item_id) + if (! $item_id) http_status_exit(404, 'Not found'); - $portable_id = EMPTY_STR; - $sigdata = HTTPSig::verify(EMPTY_STR); - if($sigdata['portable_id'] && $sigdata['header_valid']) { - $portable_id = $sigdata['portable_id']; - observer_auth($portable_id); - } - $item_normal = " and item.item_hidden = 0 and item.item_type = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_blocked = 0 "; - $sql_extra = item_permissions_sql(0); + $i = null; + + // do we have the item (at all)? - $r = q("select * from item where mid = '%s' $item_normal $sql_extra limit 1", + $r = q("select * from item where mid = '%s' $item_normal limit 1", dbesc(z_root() . '/item/' . $item_id) ); - if(! $r) { + if (! $r) { + http_status_exit(404,'Not found'); + } + + // process an authenticated fetch + + $sigdata = HTTPSig::verify(EMPTY_STR); + if($sigdata['portable_id'] && $sigdata['header_valid']) { + $portable_id = $sigdata['portable_id']; + observer_auth($portable_id); - $r = q("select * from item where mid = '%s' $item_normal limit 1", - dbesc(z_root() . '/item/' . $item_id) + // first see if we have a copy of this item's parent owned by the current signer + // include xchans for all zot-like networks - these will have the same guid and public key + + $x = q("select * from xchan where xchan_hash = '%s'", + dbesc($sigdata['portable_id']) ); - if($r) { - http_status_exit(403, 'Forbidden'); + + if ($x) { + $xchans = q("select xchan_hash from xchan where xchan_hash = '%s' OR ( xchan_guid = '%s' AND xchan_pubkey = '%s' ) ", + dbesc($sigdata['portable_id']), + dbesc($x[0]['xchan_guid']), + dbesc($x[0]['xchan_pubkey']) + ); + + if ($xchans) { + $hashes = ids_to_querystr($xchans,'xchan_hash',true); + $i = q("select id as item_id from item where mid = '%s' $item_normal and owner_xchan in ( " . protect_sprintf($hashes) . " ) limit 1", + dbesc($r[0]['parent_mid']) + ); + } } - http_status_exit(404, 'Not found'); } + // if we don't have a parent id belonging to the signer see if we can obtain one as a visitor that we have permission to access - $items = q("select parent as item_id from item where mid = '%s' and uid = %d $item_normal $sql_extra ", - dbesc($r[0]['parent_mid']), - intval($r[0]['uid']) - ); - if(! $items) { - http_status_exit(404, 'Not found'); + $sql_extra = item_permissions_sql(0); + + if (! $i) { + $i = q("select id as item_id from item where mid = '%s' $item_normal $sql_extra limit 1", + dbesc($r[0]['parent_mid']) + ); } - $r = $items; + if(! $i) { + http_status_exit(403,'Forbidden'); + } - $parents_str = ids_to_querystr($r,'item_id'); + $parents_str = ids_to_querystr($i,'item_id'); - $items = q("SELECT item.*, item.id AS item_id FROM item WHERE item.parent IN ( %s ) $item_normal $sql_extra ", + $items = q("SELECT item.*, item.id AS item_id FROM item WHERE item.parent IN ( %s ) $item_normal ", dbesc($parents_str) ); @@ -98,9 +119,8 @@ class Item extends Controller { http_status_exit(404, 'Not found'); } - $r = $items; - xchan_query($r,true); - $items = fetch_post_tags($r,true); + xchan_query($items,true); + $items = fetch_post_tags($items,true); $observer = App::get_observer(); $parent = $items[0]; |