From 13a7d2a538b00aa0a8cf9b999f1a4ff3e5959af9 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Sun, 31 Jan 2021 16:14:59 +0100 Subject: database: Validate #:nar-size and #:time when registering store items. * guix/store/database.scm (assert-integer): New procedure. (update-or-insert): Use it to validate NAR-SIZE and TIME. * tests/store-database.scm ("sqlite-register with incorrect size"): New test. --- guix/store/database.scm | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'guix/store/database.scm') diff --git a/guix/store/database.scm b/guix/store/database.scm index 4eea166d92..8d08def833 100644 --- a/guix/store/database.scm +++ b/guix/store/database.scm @@ -1,6 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2017, 2019 Caleb Ristvedt -;;; Copyright © 2018, 2020 Ludovic Courtès +;;; Copyright © 2018, 2020, 2021 Ludovic Courtès ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen ;;; ;;; This file is part of GNU Guix. @@ -241,12 +241,26 @@ (define insert-sql "INSERT INTO ValidPaths (path, hash, registrationTime, deriver, narSize) VALUES (:path, :hash, :time, :deriver, :size)") +(define-inlinable (assert-integer proc in-range? key number) + (unless (integer? number) + (throw 'wrong-type-arg proc + "Wrong type argument ~A: ~S" (list key number) + (list number))) + (unless (in-range? number) + (throw 'out-of-range proc + "Integer ~A out of range: ~S" (list key number) + (list number)))) + (define* (update-or-insert db #:key path deriver hash nar-size time) "The classic update-if-exists and insert-if-doesn't feature that sqlite doesn't exactly have... they've got something close, but it involves deleting and re-inserting instead of updating, which causes problems with foreign keys, of course. Returns the row id of the row that was modified or inserted." + ;; Make sure NAR-SIZE is valid. + (assert-integer "update-or-insert" positive? #:nar-size nar-size) + (assert-integer "update-or-insert" (cut >= <> 0) #:time time) + ;; It's important that querying the path-id and the insert/update operation ;; take place in the same transaction, as otherwise some other ;; process/thread/fiber could register the same path between when we check -- cgit v1.2.3