prepare for OS file storage, and add bbcode attachment link to mod/filestorage. This isn't beautiful, but it's a start.

include/attach.php

@@ -188,13 +188,13 @@ function attach_by_hash($hash,$rev = 0) {
 	$sql_extra = permissions_sql($r[0]['uid']);
 
 	// Now we'll see if we can access the attachment
-dbg(1);
+
 
 	$r = q("SELECT * FROM attach WHERE hash = '%s' and uid = %d $sql_extra LIMIT 1",
 		dbesc($hash),
 		intval($r[0]['uid'])
 	);
-dbg(0);
+
 	if(! $r) {
 		$ret['message'] =  t('Permission denied.');
 		return $ret;
@@ -672,3 +672,9 @@ function attach_change_permissions($channel_id,$resource,$allow_cid,$allow_gid,$
 }
 			 	
 
+function pipe_streams($in, $out) {
+	$size = 0;
+    while (!feof($in))
+		$size += fwrite($out,fread($in,8192));
+	return $size;
+}

include/reddav.php

@@ -376,11 +376,16 @@ class RedFile extends DAV\Node implements DAV\IFile {
 	function get() {
 		logger('RedFile::get: ' . basename($this->name));
 
-		$r = q("select data from attach where hash = '%s' and uid = %d limit 1",
+		$r = q("select data, flags from attach where hash = '%s' and uid = %d limit 1",
 			dbesc($this->data['hash']),
 			intval($this->data['uid'])
 		);
-		if($r) return $r[0]['data'];
+		if($r) {
+			if($r[0]['flags'] & ATTACH_FLAG_OS ) {
+				return fopen($r[0]['data'],'rb');
+			}
+			return $r[0]['data'];
+		}
 
 	}