Subject: [PATCH 1/3] store: Test 'import-paths' with unauthorized and unsigned nar bundles.

From: Ludovic Courtès <[email-masked]>
Date: Wed, 9 Sep 2020 00:16:33 +0200

* tests/store.scm ("import not signed")
("import signed by unauthorized key"): New tests.
---
 tests/store.scm | 72 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/tests/store.scm b/tests/store.scm
index e168d3dcf6..8ff76e8f98 100644
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -23,6 +23,8 @@
   #:use-module (guix utils)
   #:use-module (guix monads)
   #:use-module ((gcrypt hash) #:prefix gcrypt:)
+  #:use-module ((gcrypt pk-crypto) #:prefix gcrypt:)
+  #:use-module (guix pki)
   #:use-module (guix base32)
   #:use-module (guix packages)
   #:use-module (guix derivations)
@@ -966,6 +968,76 @@
                (list out1 out2))))
     #:guile-for-build (%guile-for-build)))
 
+
+(test-assert "import not signed"
+  (let* ((text (random-text))
+         (file (add-file-tree-to-store %store
+                                       `("tree" directory
+                                         ("text" regular (data ,text))
+                                         ("link" symlink "text"))))
+         (dump (call-with-bytevector-output-port
+                (lambda (port)
+                  (write-int 1 port)              ;start
+
+                  (write-file file port)          ;contents
+                  (write-int #x4558494e port)     ;%export-magic
+                  (write-string file port)        ;store item
+                  (write-string-list '() port)    ;references
+                  (write-string "" port)          ;deriver
+                  (write-int 0 port)              ;not signed
+
+                  (write-int 0 port)))))          ;done
+
+    ;; Ensure 'import-paths' raises an exception.
+    (guard (c ((store-protocol-error? c)
+               (and (not (zero? (store-protocol-error-status (pk 'C c))))
+                    (string-contains (store-protocol-error-message c)
+                                     "lacks a signature"))))
+      (let* ((source   (open-bytevector-input-port dump))
+             (imported (import-paths %store source)))
+        (pk 'unsigned-imported imported)
+        #f))))
+
+(test-assert "import signed by unauthorized key"
+  (let* ((text (random-text))
+         (file (add-file-tree-to-store %store
+                                       `("tree" directory
+                                         ("text" regular (data ,text))
+                                         ("link" symlink "text"))))
+         (key  (gcrypt:generate-key
+                (gcrypt:string->canonical-sexp
+                 "(genkey (ecdsa (curve Ed25519) (flags rfc6979)))")))
+         (dump (call-with-bytevector-output-port
+                (lambda (port)
+                  (write-int 1 port)              ;start
+
+                  (write-file file port)          ;contents
+                  (write-int #x4558494e port)     ;%export-magic
+                  (write-string file port)        ;store item
+                  (write-string-list '() port)    ;references
+                  (write-string "" port)          ;deriver
+                  (write-int 1 port)              ;signed
+                  (write-string (gcrypt:canonical-sexp->string
+                                 (signature-sexp
+                                  (gcrypt:bytevector->hash-data
+                                   (gcrypt:sha256 #vu8(0 1 2))
+                                   #:key-type 'ecc)
+                                  (gcrypt:find-sexp-token key 'private-key)
+                                  (gcrypt:find-sexp-token key 'public-key)))
+                                port)
+
+                  (write-int 0 port)))))          ;done
+
+    ;; Ensure 'import-paths' raises an exception.
+    (guard (c ((store-protocol-error? c)
+               ;; XXX: The daemon-provided error message currently doesn't
+               ;; mention the reason of the failure.
+               (not (zero? (store-protocol-error-status c)))))
+      (let* ((source   (open-bytevector-input-port dump))
+             (imported (import-paths %store source)))
+        (pk 'unauthorized-imported imported)
+        #f))))
+
 (test-assert "import corrupt path"
   (let* ((text (random-text))
          (file (add-text-to-store %store "text" text))
-- 
2.28.0