allow zotfinger to recurse through all known hublocs if the one we got does not exist (404) or got removed (410). add functions for updating tables from array and deleting hublocs.

include/text.php

@@ -3592,6 +3592,45 @@ function create_table_from_array($table, $arr, $binary_fields = []) {
 	return $r;
 }
 
+
+function update_table_from_array($table, $arr, $where, $binary_fields = []) {
+
+	if (! ($arr && $table)) {
+		return false;
+	}
+
+	$columns = db_columns($table);
+
+	$clean = [];
+	foreach ($arr as $k => $v) {
+		if (! in_array($k, $columns)) {
+			continue;
+		}
+
+		$matches = false;
+		if (preg_match('/([^a-zA-Z0-9\-\_\.])/', $k, $matches)) {
+			return false;
+		}
+		if (in_array($k, $binary_fields)) {
+			$clean[$k] = dbescbin($v);
+		} else {
+			$clean[$k] = dbesc($v);
+		}
+	}
+
+	$sql = "UPDATE " . TQUOT . $table . TQUOT . " SET ";
+
+	foreach ($clean as $k => $v) {
+		$sql .= TQUOT . $k . TQUOT . ' = "' . $v . '",';
+	}
+
+	$sql = rtrim($sql,',');
+
+	$r = dbq($sql . " WHERE " . $where);
+
+    return $r;
+}
+
 function share_shield($m) {
 	return str_replace($m[1],'!=+=+=!' . base64url_encode($m[1]) . '=+!=+!=',$m[0]);
 }